Technical field
[0001]The present disclosure, the remote communication device, relay communication equipment, the base station, a method and a recording medium.
BACKGROUND
[0002]In recent years, IoT (Internet of Things) related development has been actively conducted. In IoT, for performing information exchange various things are connected to a network, wireless communication has become an important technical theme. Therefore, the 3GPP (Third Generation Partnership Project), such as MTC (Machine Type Communication) and NB-IoT (Narrow Band IoT), a small packet, standardization of IoT for communication to achieve low power consumption or low cost is performed there.
[0003]In IoT for communication, it is desirable that a wide coverage as much as possible low power consumption is ensured. However, typically, consumption since between the power and coverage have a trade-off relationship, an attempt to secure a wide coverage, inevitably increasing number power consumption. Therefore, as one of techniques for both low power consumption and wide coverage, relay of communication by the relay communication equipment has been studied. Enjoy remote communication device relays communication by relay communication equipment, it is possible to shorten the to communication distance compared with the case of communicating directly with the base station, it is possible to suppress the power consumption.
[0004]
　One of the processing by the remote communication apparatus performs, there is measurement (i.e., quality measurement). Measurement and may perform how efficiently, is one of the important considerations in a wireless communication system. For example, in Patent Document 1, a communication device, a technique for measurement of the designated measurement target is disclosed.
CITATION
Patent Document
[0005]
Patent Document 1: JP-T 2016-508346 Patent Publication
Summary of the Invention
Problems that the Invention is to Solve
[0006]
　Also in IoT for communication, how efficiently performing measurement is considered to be important. In order to perform measurement is due to at least electric power is consumed.
[0007]
　In the present disclosure provides a suppressing mechanism of the power consumption regarding the measurement of the remote communication device.
Means for Solving the Problems
[0008]
　According to the present disclosure, a communicable remote communication device with a base station via a relay of communication by movably arranged relay communication equipment, association with the first relay communication equipment associates with said remote communication device based on the information, the control unit selecting the link for measurement, remote communication apparatus comprising a are provided.
[0009]
　Further, according to the present disclosure, the signal of a movably arranged relay communication apparatus for relaying communication between the base station and the remote communication device, to that associated with the relay communication equipment wherein the remote communication device and and a signal to the not associated the remote communication device, the control unit to be transmitted by using different resources, the relay communication equipment provided with is provided.
[0010]
　Further, according to the present disclosure, there is provided a communication base station capable of the remote communication device via the relay of communication by movably arranged relay communication equipment, the associated said relay communication equipment and the remote communication device between the relay communication equipment and the remote communication device that is not associated with, the base station comprising a control unit, to set different resources are provided.
[0011]
　Further, according to the present disclosure, a communicable remote communication device with a base station via a relay of communication by movably arranged relay communication equipment, includes a control unit for controlling the measurement process, the control unit , the case where other remote communication device close to the remote communication device is present, if it is selected to generate shared information based on the measurement result by performing measurement shared with the other remote communication device as a representative, the representative If not selected receives a share of the shared information from the other remote communication devices that are selected as representative as the remote communication device is provided.
[0012]
　Further, according to the present disclosure, a method performed by a communicable remote communication device with a base station via a relay of communication by movably arranged relay communication equipment, wherein the first relay communication device based on the association information for associating the remote communication device, selecting a link to measurement, the method comprising is provided.
[0013]
　Further, according to the present disclosure, a computer communicable remote communication device with a base station via a relay of communication by movably arranged relay communication equipment, the first relay communication device and said remote communication device based on the association information that associates a control unit for selecting a link to measurement, a recording medium recording a program to function as is provided.
[0014]
　Further, according to the present disclosure, a method performed by a movably arranged relay communication apparatus for relaying communication between the base station and the remote communication device, wherein the remote communication associated with the relay communication equipment a signal not associated with the signal to the device to the remote communication device, transmitting using different resources, the method comprising is provided.
[0015]
　Further, according to the present disclosure, signals the computer movably arranged relay communication apparatus for relaying communication between the base station and the remote communication device, to the relay communication equipment and the associated said remote communication device and a signal to the remote communication device not associated with the control unit to transmit using different resources, the recording medium recording a program for functioning as is provided.
[0016]
　Further, according to the present disclosure, via the relay of communication by movably arranged relay communication device a method performed by the remote communication device capable of communicating with the base station, the associated relay communication equipment and wherein in the remote communication apparatus and the relay communication equipment is not associated and the remote communication device, the method comprising, to set different resources are provided.
[0017]
　Further, according to the present disclosure, movably remote communication device and a communicable base station computer via the relay of communication by configured relay communication equipment, the associated said relay communication equipment and the remote communication device the relay communication equipment and the not associated with in a remote communication device, the control unit for setting different resources, a recording medium recording a program to function as is provided.
[0018]
　Further, according to the present disclosure, a method performed by a communicable remote communication device with a base station via a relay of communication by movably arranged relay communication device includes controlling the measurement process the controlling the measurement process, the case where other remote communication device close to the remote communication device is present, the other to generate shared information based on the measurement result by performing measurement when it is selected as a representative shared with the remote communication device, if that is not selected as the representative comprises from selected the other remote communication device as a representative receiving the sharing of the shared information, a method is provided.
[0019]
　Further, according to the present disclosure, a computer communicable remote communication device with a base station via a relay of communication by movably arranged relay communication equipment, to function as a control unit for controlling the measurement process, the control parts, the case where other remote communication device close to the remote communication device is present, if it is selected to generate shared information based on the measurement result by performing measurement shared with the other remote communication device as a representative, If not selected as the representative receives a share of the shared information from the selected the other remote communication device as a representative, a recording medium recording a program is provided.
The invention's effect
[0020]
　According to the present disclosure described above, suppressing mechanism is provided a power consumption relating to the measurement of the remote communication device. Incidentally, the above effect is not necessarily restrictive, with the above effects, or instead of the above effects, any effects shown herein, or other effects that may be grasped from the description, it may be achieved.
BRIEF DESCRIPTION OF THE DRAWINGS
[0021]
It is a diagram for explaining an example of FIG. 1 of a system according to an embodiment of the present disclosure configuration.
FIG. 2 is a block diagram showing an example of a configuration of a base station according to the embodiment.
3 is a block diagram showing an example of a configuration of a relay UE according to the embodiment.
4 is a block diagram showing an example of a remote UE configuration according to the embodiment.
5 is a sequence diagram showing an example of the flow of the measurement procedure performed in the system according to the first embodiment.
6 is a sequence diagram showing an example of the flow of the measurement procedure performed in the system according to the embodiment.
7 is a flowchart showing an example of the flow of the measurement execution determination processing executed in a remote UE according to the embodiment.
8 is a flowchart illustrating an example of a measurement process flow that is performed in the remote UE group according to the second embodiment.
9 is a diagram for explaining the first embodiment.
It is a diagram for explaining an example of a resource set and measurement of [10] the examples.
11 is a diagram for explaining an example of a resource set and measurement in the same embodiment.
12 is a diagram for explaining the second embodiment.
13 is a diagram for explaining an example of a resource set and measurement in the same embodiment.
14 is a sequence diagram for explaining the first scenario of the fourth embodiment.
15 is a sequence diagram for explaining the second scenario of the embodiment.
16 is a sequence diagram for describing a third scenario of the embodiment.
17 is a sequence diagram for explaining the fourth scenario of the embodiment.
18 is a sequence diagram for explaining the fifth scenario of the embodiment.
19 is a diagram for explaining a sixth embodiment.
FIG. 20 is a diagram for explaining a seventh embodiment.
21 is a sequence diagram for explaining the first scenario of the eighth embodiment.
FIG. 22 is a sequence diagram for explaining the second scenario of the embodiment.
FIG. 23 is a sequence diagram for describing a third scenario of the embodiment.
FIG. 24 is a sequence diagram for explaining the fourth scenario of the embodiment.
[25] is a sequence diagram for explaining the fifth scenario of the embodiment.
[FIG. 26] is a sequence diagram for explaining a sixth scenario of the embodiment.
FIG. 27 is a sequence diagram for explaining a seventh scenario of the embodiment.
[FIG. 28] is a sequence diagram for explaining the eighth scenario of the embodiment.
FIG. 29 is a sequence diagram for explaining a ninth scenario of the embodiment.
[FIG. 30] is a sequence diagram for explaining the tenth scenario of the embodiment.
[FIG. 31] is a sequence diagram for explaining the eleventh scenario of the embodiment.
[FIG. 32] is a sequence diagram for explaining a twelfth scenario of the embodiment.
[33] is a sequence diagram for explaining a thirteenth scenario of the embodiment.
FIG. 34 is a sequence diagram for explaining the 14th scenario of the embodiment.
[FIG. 35] is a sequence diagram for explaining a fifteenth scenario of the embodiment.
[FIG. 36] is a sequence diagram for explaining a sixteenth scenario of the embodiment.
[FIG. 37] is a sequence diagram for explaining a seventeenth scenario of the embodiment.
[FIG. 38] is a sequence diagram for explaining the 18th scenario of the embodiment.
[39] is a sequence diagram for explaining a nineteenth scenario of the embodiment.
[FIG. 40] is a sequence diagram for explaining the 20th scenario of the embodiment.
Is a block diagram showing a first exemplary configuration of FIG. 41] eNB.
Is a block diagram showing a second example of FIG. 42 schematic configuration of eNB.
[43] is a block diagram showing an example of a schematic configuration of a smart phone.
[FIG. 44] is a block diagram showing an example of a schematic configuration of a car navigation system.
DESCRIPTION OF THE INVENTION
[0022]
　Reference will now be described in detail preferred embodiments of the present disclosure. In the specification and the drawings, components having substantially the same function and structure are a repeated explanation thereof by referring to the figures.
[0023]
　Further, in this specification and the drawings, elements having substantially the same functional configuration may be distinguished by affixing a different alphabetical letter to the same reference numerals. For example, a plurality of elements having substantially the same functional configuration, remote UE300A optionally distinguished as 300B and 300C. However, when there is no particular need to distinguish between a plurality of elements having the same function and structure are denoted with the same reference numeral only. For example, remote UE300A, if there is no particular need to distinguish between 300B and 300C are simply referred to as a remote UE 300.
[0024]
　The description will be made in the following order.
　　1. Introduction
　　　1.1. Overall structure
　　　1.2. Request for a relay communication
　　　1.3. Definition
　　　1.4. Configuration example of each device
　　2. First Embodiment
　　　2.1. Technical problems
　　　2.2. Technical features
　　3. The second embodiment
　　　3.1. Technical problems
　　　3.2. Technical features
　　4. Example
　　　4.1. The first embodiment
　　　4.2. Second embodiment
　　　4.3. Third embodiment
　　　4.4. Fourth embodiment
　　　4.5. Fifth embodiment
　　　4.6. Sixth embodiment of
　　　4.7. The seventh embodiment
　　　4.8. Eighth embodiment
　　5. Application Example
　　6. Summary
[0025]
　<< 1. Introduction
　>> <1.1. Overall Configuration>
　FIG. 1 is a diagram for explaining an example of a configuration of a system 1 according to an embodiment of the present disclosure. As shown in FIG. 1, a system 1 according to this embodiment includes a base station 100, the terminal apparatus 200, and the terminal device 300 (300A and 300B).
[0026]
　The base station 100 may operate the cell, to provide wireless service to one or more terminal devices located inside the cell. For example, the base station 100 provides wireless service to each terminal device 200 and 300. Cells, for example 4G, 5G, may be operated in accordance with any wireless communication system such as LTE or NR (New Radio).
[0027]
　Terminal device 200 and the terminal device 300, base station 100 and wireless communication under the control of the base station 100. Terminal device 200 and the terminal device 300 is a so-called user terminal: it may be a (UE User Equipment). Terminal device 200 and the terminal device 300 forms a link with the base station 100 (e.g., downlink or uplink). Then, the terminal apparatus 200 and terminal apparatus 300 sends an uplink signal to the base station 100, receives downlink signals from base station 100. Thus, to communicate without passing through the other apparatus between the base station 100, it referred to directly communicates with.
[0028]
　Here, the terminal apparatus 200, relays the communication to or other device from another device (i.e., relays) having the function of a movably arranged relay communication equipment. For example, the terminal device 200, the communication between the base station 100 and the terminal device 300 can be a relay. In other words, the base station 100 can communicate with the terminal device 300 via the relay of communication by the terminal device 200. Specifically, the terminal device 200, an uplink signal to the base station 100 receives from the terminal device 300 and transferred to the base station 100 receives the downlink signal to the terminal device 300 from the base station 100 terminal transferred to the apparatus 300. Thus, to communicate via the other device with the base station 100, also referred to as relay communication. The terminal device 300, by using the relay communication, typically can communicate when compared to the direct low power consumption. Links formed between the terminal device 200 and the terminal device 300 is also referred to as side links. The link formed between the base station 100 and the terminal device 200 is also referred to as the backhaul link. In FIG. 1, one terminal apparatus 200 showing an example of relaying a relay communication, two or more of the terminal apparatus 200 may relay the relay communication.
[0029]
　Hereinafter, the terminal device 200 which is movable in having a relay function referred to as a relay terminal or relay UE (Relay UE), a terminal device 300 that communicate via a relay UE200 also referred to as a remote terminal or remote UE. Remote UE300 is, for example, IoT device for performing low frequency communications. Additional remote UE300 smartphones, or may be a vehicle terminal, or drone like. Relay UE200 likewise, for example, relay-only device, IoT device, a smart phone, may be implemented as an in-vehicle terminal or drone like.
[0030]
　As similar devices to the relay UE, there is a relay station. For the relay station, it has been standardized by 3GPP ever. The following describes differences between the relay station and the relay UE.
[0031]
　First, there are differences regarding mobility. Relay station position is fixed. In contrast, relay UE has mobility.
[0032]
　Second, there is a difference about the owner. Relay base station is typically owned by the operator, to operate in equivalent authority base station. In contrast, relay UE is typically a property of the user is likely to operate in limited privileges compared to the relay station. For example, relay UE may operate under the control by the base station.
[0033]
　Thirdly, there are differences relating to the use case envisaged. Relay base station, provides the relay communications to the smartphone is assumed. In contrast, relay UE, in addition to smart phones, MTC are contemplated provided the relay communication to the terminal and NB-IoT terminal or the like, it is necessary to support various communications traffic, including small packet data.
[0034]
　Fourth, there are differences relating to the arrangement of the remote UE (Deployment). The relay base station, the remote UE is assumed to be uniformly distributed within the coverage. In contrast, in the relay UE, not necessarily the remote UE is distributed uniformly.
[0035]
　Fifth, relay base station, there are differences in physical constraints between relay UE. In relay UE, since the mounting space is limited, it is difficult to implement the same function as the relay station. Therefore, relay UE it is desirable to operate under support of the base station.
[0036]
　<1.2. Request> relates relay communication
　Representative examples of IoT terminal using the relay communication include wearable devices. The wearable devices, low power consumption and highly reliable communication is required, high-capacity communication is required sometimes. In order to cover such use cases, standardization of the 3GPP FeD2D (Further enhancement D2D) was launched in 2016. Wearable device is typically present around the user. Therefore, wearable devices, by receiving a supply of the relay communication from the user terminal, such as a smart phone, to shorten the communication distance becomes possible to realize a highly reliable communication with low power consumption.
[0037]
　In the relay communication such for wearable devices, the communication quality of the end-to-end between the base station and the remote UE (End to end): Since (QoS Quality of Service) guarantee are important, highly reliable it is desirable that the communication path is established. Furthermore, if the wearable device is a remote UE, the relay communication, low complexity (Low complexity), low cost (Low cost), and it is desirable that a low power consumption (Low power consumption). To realize these are determined to realize the requested items below.
[0038]
　The first request item is an improvement of the side link communication. In the side link, closed-loop feedback for performing such as retransmission (Closed loop feedback) communication is not performed. However, in order to satisfy the first requirement items, for example for the realization of QoS and highly reliable communication, link adaptation and HARQ (Hybrid automatic repeat request) functions such as using a feedback that is supported desirable.
[0039]
　The second request item is a low power consumption. To meet the second requirement items, for example the transmission power control and DRX (Discontinuous Reception) function supported is desirably such.
[0040]
　The third request item is a service continuity (Service continuity). With respect to the wearable terminal, link quality changes dynamically. Therefore, in order to meet the third requirement items of, it is desirable that the functions of optimization of the handover and the path switching are supported.
[0041]
　<1.3. Definition>
　In D2D communication, two devices are communicating is in a state of association (association), or the association relationship, together referred.
[0042]
　In contrast, in the present specification, a trust relationship Relay UE200 and the remote UE 300, in a state of association, or the association relationship, and referred. Further, the information associating the association related relay UE200 and the remote UE 300, also referred to as association information. Association information includes, for example, a combination of identification information of the association relationship relay UE200 and remote UE 300.
[0043]
　Here, the association relationship (i.e., trust relationship) to the relay UE200 and the remote UE 300, various forms are conceivable. Hereinafter, one example is explained.
[0044]
　For example, relay UE200 and remote UE300 is owned by the same owner, it can be said that the association relationship.
[0045]
　For example, relay UE200 and remote UE300 share each other's information, it can be said that the association relationship. In this case, the information to be shared, for example, mutual identification information (e.g., IMSI (International Mobile Subscriber Identity)), a list of mutual association relationship entity, is capable of specifying the other relay UE200 or remote UE300 parameters considered It is.
[0046]
　For example, without any encoding, relays that can perform a side-link communication UE200 and remote UE300 can be said association relationship.
[0047]
　For example, the distance is close, the relative position is not changed, the relay UE200 and remote UE300 and having the same mobility, it can be said that the association relationship. This is because the same user is because it is considered that there is a case of carrying the relay UE200 and remote UE 300.
[0048]
　For example, relay UE200 and remote UE300 capable secure communications, it can be said that the association relationship.
[0049]
　It has been described an example of the association relationship.
[0050]
　Remote UE and association related relay UE, and also called Associated Electrics of (the Associated) Relay UE or Associated Electrics relay. Remote UE and association related relay UE other relay UE, also referred to as no association relationship relay UE. Also, the remote UE and association irrelevant relay UE, also referred to as non-Associated Electrics a (non-associated) Relay UE or non Associated Electrics relay.
[0051]
　In the Uu interface between the base station 100 and the relay UE200 or remote UE 300, the link such downlink and uplink may be formed. The link in the Uu interface to collectively referred to as Uu link. On the other hand, in the PC5 interface between the relay UE200 and the remote UE 300, the side links may be formed.
[0052]
　Remote UE300 a message to the base station 100, either directly via the up-link with a base station 100, or through the side links of the relay UE200 is indirectly transmittable. However, remote UE300 is than sending over the uplink between the base station 100, it is desirable to transmit via the side links with the association relationship relay UE 200. Thus, it is possible to suppress the safe power consumption.
[0053]
　It should be used to either uplink or side links, and should be used which side links are all dependent on link quality. Therefore, typically, remote UE300 monitors and measurement of each link of the connection candidate, connected to the relatively good link for the transmission of messages.
[0054]
　In the present specification, "connection", to become a camp-on state, to establish an RRC connection, and assumed is a concept that involves the completion of the attach procedure. Further, "connected" in the following description may be replaced with at least one of "camp-on", "RRC Connection" or "attach". Incidentally, camp-on A, the UE performs a cell selection / cell reselection process, the state was selected cell for monitoring the system information and paging information, or remote UE performs a relay selection / relay reselection process, the side links It refers to a state you have selected the monitoring relay.
[0055]
　<1.4. Configuration example of each
　apparatus> <1.4.1. Configuration Example> of the base station
　2 is a block diagram showing an example of a configuration of a base station 100 according to this embodiment. Referring to FIG. 2, the base station 100 includes an antenna unit 110, the wireless communication unit 120, a network communication unit 130, storage unit 140, and a control unit 150.
[0056]
　(1) Antenna unit 110
　antenna unit 110 radiates into the space a signal output by the radio communication unit 120 as a radio wave. The antenna unit 110 converts the radio waves of space signal, and outputs the signal to the radio communication unit 120.
[0057]
　(2) wireless communication unit 120
　radio communication unit 120 transmits and receives signals. For example, wireless communication unit 120 transmits a downlink signal to the terminal device, receives uplink signals from the terminal device.
[0058]
　(3) Network communication unit 130
　network communication unit 130 sends and receives information. For example, the network communication unit 130 transmits the information to other nodes, to receive information from other nodes. For example, the other nodes, including other base stations and a core network node.
[0059]
　(4) storage unit 140
　storage unit 140 temporarily or permanently storing a program and various data for the operation of the base station 100.
[0060]
　(5) Control unit 150
　The control unit 150 provides various functions of the base station 100. Control unit 150 includes a setting unit 151 and the communication control unit 153. Setting unit 151 sets the resource to the relay UE200 and remote UE 300. A resource here is a resource for discovery or communication in the side links or Uu link. The communication control unit 153 performs a communication process with the relay UE200 or remote UE300 in the resource set. For example, the communication control unit 153, between the relay UE200 or remote UE 300, transmits and receives data signals, control signals, the reference signal and the discovery signal. Operation of the base station 100 based on the processing by the setting unit 151 and the communication control unit 153 will be described in detail later. The control unit 150 may further include other components other than these components. That is, the control unit 150 may perform also the operation other than the operation of these components.
[0061]
　<1.4.2. Configuration Example> Relay UE
　3 is a block diagram showing an example of a configuration of a relay UE200 according to the present embodiment. Referring to FIG. 3, a relay UE200 includes an antenna unit 210, radio communication unit 220, storage unit 230, and a control unit 240.
[0062]
　(1) Antenna unit 210
　antenna unit 210 radiates into the space a signal output by the radio communication unit 220 as a radio wave. The antenna unit 210 converts the radio waves of space signal, and outputs the signal to the wireless communication unit 220.
[0063]
　(2) wireless communication unit 220
　radio communication unit 220 transmits and receives signals. For example, wireless communication unit 220 receives the downlink signal from the base station, transmits an uplink signal to the base station.
[0064]
　In the present embodiment, the wireless communication unit 220 transmits an uplink signal to the base station 100 to base station 100 or relay UE 200, receives downlink signals from base station 100 from the base station 100 or relay UE 200.
[0065]
　In the present embodiment, the wireless communication unit 220, the remote receives the downlink signals transferred to the base station 100 receives the uplink signal to the base station 100 remotely UE 300, the base station 100 to a remote UE 300 UE 300 It can be transferred to.
[0066]
　(3) storage unit 230
　storage unit 230 temporarily or permanently storing a program and various data for the operation of the relay UE 200.
[0067]
　(4) Control unit 240
　The control unit 240 provides various functions of the relay UE 200. Control unit 240 includes a communication control unit 241. For example, the communication control unit 241, under the control of the base station 100, to communicate with the base station 100, or relays communication between the base station 100 and the remote UE 300. Further, for example, the communication control unit 241, with the base station 100 or remote UE 300, transmits and receives data signals, control signals, the reference signal and the discovery signal. Operation of the relay UE200 based on the processing by the communication control unit 241 will be described in detail later. The control unit 240 may further include other components other than these components. That is, the control unit 240 may perform also the operation other than the operation of these components.
[0068]
　<1.4.3. Configuration Example> remote UE
　4 is a block diagram showing an example of the configuration of a remote UE300 according to the present embodiment. Referring to FIG 4, the remote UE300 includes an antenna unit 310, radio communication unit 320, storage unit 330, and a control unit 340.
[0069]
　(1) Antenna 310
　Antenna 310 radiates into the space the signal output by the radio communication unit 320 as a radio wave. The antenna unit 310 converts the radio waves of space signal, and outputs the signal to the wireless communication unit 320.
[0070]
　(2) wireless communication unit 320
　wireless communication unit 320 transmits and receives signals. For example, wireless communication unit 320 receives the downlink signal from the base station, transmits an uplink signal to the base station.
[0071]
　In the present embodiment, the wireless communication unit 320 transmits an uplink signal to the base station 100 to base station 100 or relay UE 200, receives downlink signals from base station 100 from the base station 100 or relay UE 200.
[0072]
　(3) storage unit 330
　storage unit 330 temporarily or permanently storing a program and various data for the operation of the remote UE 300.
[0073]
　(4) Control unit 340
　The control unit 340 provides various functions of the remote UE 300. Control unit 340 includes a measurement processing unit 341 and the communication control unit 343. Measurement processing unit 341 controls the measurement processing of the link between the link or relay UE200 and base station 100. The communication control unit 343 performs a communication process with the base station 100 or relay UE200 based on measurement results. Further, for example, the communication control unit 343, with the base station 100 or relay UE 200, transmits and receives data signals, control signals, the reference signal and the discovery signal. Operation of the measurement processing unit 341 and the remote UE300 based on the processing by the communication control unit 343 will be described in detail later. The control unit 340 may further include other components other than these components. That is, the control unit 340 may perform also the operation other than the operation of these components.
[0074]
　<< 2. First Embodiment
　>> <2.1. Technical Issues>
　remote UE, due FeD2D, it is possible to transmit a packet to the base station via the relay UE. However, there are two factors to great power consumption of the remote UE.
[0075]
　The first factor relates to the remote UE a OOC (Out of coverage). According to standards for D2D, only the remote UE of OOC is connectable to the relay UE communicating with the base station. However, the remote UE is OOC, to select whether to connect to any side links, to monitor the side links of all candidate, it has been considered to be measurement of link quality. Therefore, a great deal of power consumption for measurement of link quality by monitoring the side links of all candidate has been requiring.
[0076]
　The second factor relates to the remote UE of IC (In coverage). According to standards for D2D, remote UE of IC has been always to use an uplink. Therefore, remote UE of IC is significant power consumption by the uplink transmission had been requiring.
[0077]
　Given these two factors, both remote UE on the remote UE and OOC of the IC, is capable of communication via a relay UE, and, that the power consumption can be suppressed mechanism related measurement is provided desirable.
[0078]
　<2.2. Technical features>
　remote UE300 performs measurement based on association information. By association information is used for measurement, measurement times due to the link to measurement is limited is reduced, power consumption is reduced. Furthermore, since the association information is used for measurement, resource measurement is limited, power consumption is reduced.
[0079]
　The remote UE300, based on the association information and the measurement result, the destination (e.g., camp-on destination) for selecting a link. Thus, remote UE300 is able to select an appropriate connection destination link. Hereinafter, describing the technical features of the present embodiment in detail.
[0080]
　(1) Measurement
　First, with reference to FIGS. 5 and 6, an example of the flow of the measurement procedure.
[0081]
　Figure 5 is a sequence diagram showing an example of the flow of the measurement procedure performed in the system 1 according to this embodiment. As shown in FIG. 5, in this sequence, the base station 100, relay UE200 and remote UE300 is involved. Here, the relay UE200 and remote UE300 is located within the coverage of the base station 100, i.e., assumed to be in the coverage.
[0082]
　First, the relay UE200 and remote UE300 establish an association relationship (step S12).
[0083]
　Then, the relay UE200 is connected to the base station 100 performs a cell search, and notifies the association information to the base station 100 (step S14). For example, relay UE200 includes its own identification information, the information associating the identification information of the association relationship remote UE 300, and notifies the base station 100 as association information. The notification of the association information, for example, PUCCH or PUSCH may be used.
[0084]
　Then, the base station 100 assigns a side link resources between the relay UE 200 and the remote UE 300, and notifies the allocation result to the relay UE 200 (step S16). Here, the side links resource is a resource for the Quick discovery or side link communication.
[0085]
　Then, the remote UE300 is connected to the base station 100 performs a cell search, and notifies the association information to the base station 100 (step S18). For example, remote UE300 includes its own identification information, the information associating the identification information of the association relationship relay UE 200, and notifies the base station 100 as association information. The notification of the association information, for example, PUCCH or PUSCH may be used. Here, the remote UE300, when performing cell search and measurement the Uu link.
[0086]
　Then, the base station 100, the side links resources allocated to the remote UE 300 and Association associated relay UE 200, and notifies the remote UE 300 (step S20).
[0087]
　Then, the relay UE200 and remote UE300 performs side links discovery and side link communications using the allocated resources (step S22). At that time, the side links discovery, (transmits for example the discovery signal (discovery Signal)) may be performed from the relay UE200 side, transmission may be performed from a remote UE300 side (e.g., the discovery requested (discovery solicitation) ).
[0088]
　Then, the remote UE300 performs measurement (step S24).
[0089]
　Figure 6 is a sequence diagram showing an example of the flow of the measurement procedure performed in the system 1 according to this embodiment. As shown in FIG. 6, in this sequence, the base station 100, relay UE200 and remote UE300 is involved. Here, the relay UE200 is located within the coverage of the base station 100, i.e., assumed to be in the coverage. Also, remote UE300 is located outside the coverage of the base station 100, i.e., it is assumed that out-of-coverage.
[0090]
　First, the base station 100 sets in advance the side link resources for communication or discovery between the relay UE200 and the remote UE 300 (step S32). The pre-setting is preferably performed for at least the remote UE 300. On the other hand, the pre-setting may be made to the relay UE 200, it may be omitted.
[0091]
　Then, the relay UE200 and remote UE300 establish an association relationship (step S34).
[0092]
　Then, the relay UE200 is connected to the base station 100 performs a cell search, and notifies the association information to the base station 100 (step S36). For example, relay UE200 includes its own identification information, the information associating the identification information of the association relationship remote UE 300, and notifies the base station 100 as association information. The notification of the association information, for example, PUCCH or PUSCH may be used.
[0093]
　Then, the base station 100 allocates the side link resources to the relay UE 200 (step S38). However, if pre-set side link resources of the relay UE 200, this step may be omitted.
[0094]
　Then, the relay UE200 and remote UE300 performs side links discovery and side link communications using the allocated resources (step S40). At that time, the side links discovery may be performed from the relay UE200 side (e.g. sending a discovery signal) may be performed remotely UE300 side (e.g., sends a discovery request).
[0095]
　Then, the remote UE300 performs measurement (step S42).
[0096]
　It has been described an example of the flow of the measurement procedure. Hereinafter, it will be described in detail measurement performed by the remote UE 300.
[0097]
　· Uu link of the measurement
　will be described below measurement of Uu link. In particular, the remote UE300 performs a measurement of the downlink.
[0098]
　Measurement item being (or content), namely the item of quality measurement (Measurement object), it is variously considered. For example, as an item of quality measurements, downlink RSRP (Reference Signal Received Power), the downlink BLER (Block Error Rate), at least one of TA (Timing Advance) or pathloss between the remote UE300 and the base station 100 it may be.
[0099]
　The link to be measurement, i.e. the quality measurement target link is variously considered. For example, the link to be measured, PDCCH (Physical Downlink Control Channel) or PDSCH may be (Physical Downlink Shared Channel) at least one of.
[0100]
　A measurement timing (Measurement Timing) is variously considered.
[0101]
　Remote UE300 may measurement periodically (Periodically) downlink. In that case, for example, measurement start time and the measurement period (duration) may be set in advance to give notified from the relay UE200 or base station 100, or by the base station 100. The measurement period (period) may be set in advance to give notified from the relay UE200 or base station 100, or by the base station 100.
[0102]
　On the other hand, remote UE300 may measurement downlink based on an event trigger. For example, remote UE300, after X subframes from the reception of the a measurement request from the relay UE200 or base station 100 may measurement. Also, remote UE300 may measurement when the link quality is below the threshold alpha. Threshold α the relay capability (e.g., maximum number of remote UE300 connectable to the relay UE 200) in response to the density or the network such as may be notified appropriately by the base station 100 or relay UE 200, is set in advance it may be. The threshold value α is, the battery information of the remote UE 300 (e.g., battery level and battery capacity (i.e., maximum value)) in response to, or may be dynamically or statically determined.
[0103]
　In the present specification, X is may be a predetermined value or may be dynamically set by any means. Further, a plurality of X described herein is intended or may be different values ​​from each other.
[0104]
　Side link of the measurement
　will be described below measurement of the side links.
[0105]
　Measurement item being (or content), i.e., items of quality measurement are variously considered. For example, items of the quality measurement, side links of RSRP, the side links BLER, may be at least one of TA or pathloss between the remote UE300 and the relay UE 200.
[0106]
　The link to be measurement, i.e. the quality measurement target link is variously considered. For example, the link to be measured, PSDCH (Physical Sidelink Discovery Channel), may be at least one of PSCCH (Physical Sidelink Control Channel) or PSSCH (Physical Sidelink Shared Channel).
[0107]
　A measurement timing is variously considered.
[0108]
　Remote UE300 may measurement periodically (Periodically) side links. In that case, for example, the measurement cycle (period) may be set in advance to give notified from the relay UE200 or base station 100, or by the base station 100.
[0109]
　On the other hand, remote UE300 may measurement the side links on the basis of the event trigger. For example, remote UE300, after X subframes from the reception of the a measurement request from the relay UE200 or base station 100 may measurement. Also, remote UE300 may measurement when the link quality is below the threshold alpha. Threshold α the relay capability (e.g., maximum number of remote UE300 connectable to the relay UE 200) in response to the density or the network such as may be notified appropriately by the base station 100 or relay UE 200, is set in advance it may be. The threshold value α remaining battery level and battery capacity of the remote UE 300 (i.e., the maximum value) in accordance with, or may be dynamically or statically determined. The threshold value α is to be may be set in the same in the all remote UE 300, may be set between a remote UE 300 belonging to the UE group, it may be set for each individual remote UE 300.
[0110]
　Also, measurement frequency and accuracy may be updated. For example, if the link quality falls below a predetermined value, the measurement is more often and more precisely performed.
[0111]
　Resource setting
　association information may be used for resource settings for the Quick discovery or side link communication. For example, (corresponding to the first relay communication equipment) association related relay UE 200 and out with no association relationship Relay UE 200 (corresponding to the second relay communication equipment) is set different resources for discovery or communication it may be. In other words, the base station 100, an association relationship relay UE200 and remote UE 300, in the relay UE200 and remote UE 300 no association relationship, to set different resources. Then, the relay UE200 is a signal to the signal and Association irrelevant remote UE 300 to itself and Association associated remote UE 300, and transmits using different resources. Signals transmitted here is, for example, discovery signals or reference signals.
[0112]
　Thus, remote UE300 is, when measurement of the link quality of the association relationship relay UE 200, becomes better if the measurement in the limited resources on the basis of the association information. Thus, remote UE300 is measurement in the entire resource (i.e., blind detection (blind detection)) the need to have eliminated, it is possible to suppress the power consumption.
[0113]
　For example, the pair of association related relay UE200 and remote UE 300, the resource that is perpendicular to the other pair no association relationship is set. Resource settings for the discovery announcement by one association relationship pair is notified to the other for performing discovery monitoring.
[0114]
　Here, the resource set may be a resource pool may be a resource block.
[0115]
　Resource settings may be adjusted in a dynamic manner. For example, resources for the Quick discovery or side link communication may be set dynamically by the base station 100.
[0116]
　Incidentally, the association information may be included in the packet sent over the side links. For example, the association information is included in SA (Scheduling Assignment) or data.
[0117]
　- a measurement skipping
　as the existing technique, the quality of other links than the link connecting constantly measurement, if the quality is better link than the link currently connected, is to switch the connection to the link.
[0118]
　In contrast, remote UE300 according to the present embodiment, on the basis of the association information, performs measurement for the Quick discovery or side link communication. Specifically, the remote UE300 determines whether association relationship between the relay UE200 based on association information, selects a link that measurement based on the determination result. For example, remote UE300 is a link with the association relationship relay UE 200, to measurement preferentially selected over other links. The remote UE300 is a link with a base station 100 and association irrelevant relay UE 200, to measurement at a lower priority. Preferentially to measurement is to measurement at a higher frequency than others, it may be such that the order of measurement is fast. Further, by measurement with a lower priority may be to skip the measurement. Note that the skip measurement, when a predetermined condition is satisfied, is to continue the connection with the link currently connected without measurement. Note that the measurement at a lower priority may be to lower the frequency of performing the measurement. In any case, since the measurement number for the link other than the link between the association relationship relay UE200 is reduced compared to existing technologies, it is possible to suppress power consumption.
[0119]
　For example, remote UE300, when communicating by connecting to the association relationship relay UE 200, skip measurement of other links. Thus, because the link between the relay UE200 no association relationship, and the measurement of the link between the base station 100 is skipped, reduces the measurement number of times, it is possible to suppress power consumption. Especially, remote UE300 having only one receiving device (Rx chain), so requires performing link switching without measurement of other links, it is possible to maintain continuity of service.
[0120]
　When a predetermined condition is satisfied it may be canceled skipped. For example, remote UE300, when communicating by connecting to the association relationship relay UE 200, based on a measurement request quality or other links of the link between the association relationship relay UE 200, the other link measurement to select whether or not to skip. More simple, remote UE300 is, unless an exception is generated, by monitoring the only side link in the connection, to skip the measurement of the other link. Exceptions include be worse than the threshold quality of the side links being connected is deteriorated. The threshold may be notified from the relay UE 200, it may be set in advance by the base station 100, the threshold value that has been used when was communicating in the past the relay UE 200 may be diverted . As the exception, and the like that receives the a measurement request from the relay UE 200. It is to be noted that a measurement request is a message to request to measurement a link other than the side links of the currently connected.
[0121]
　Remote UE300 is OOC, and when not found association relationship of relays UE200 also in neighboring, it is possible to communicate with the relay UE200 no association relationship. The link quality of the association irrelevant relay UE200 to determine whether measurement, the timer may be used. For example, remote UE300, when unable to either the discovery of the reference signal or the discovery signal from the base station 100 or the association relationship relay UE 200, to measurement resource pool for relay UE 200 no association relationship.
[0122]
　Incidentally, the resource for the Quick discovery or side link communication between the relay UE 200 and the remote UE300 is notified by the base station 100 or relay UE 200, or is set in advance by the base station 100.
[0123]
　On the other hand, remote UE300, when the association relation relay UE200 not communicating by connecting to a (corresponding to the first relay communication equipment), and select the link with the association relationship relay UE200 preferentially, measurement I do. For example, remote UE300 is preferentially monitored resources for association related relay UE 200, to measurement of link quality. Thus, remote UE300 is the switching of the connection destination to the association relationship relay UE 200, it is possible to realize more quickly.
[0124]
　Referring to FIG. 7, an example of a process flow relating to a measurement skipping described above.
[0125]
　Figure 7 is a flow chart showing an example of a measurement execution determination processing flow executed in the remote UE300 according to the present embodiment. This processing is executed by the remote UE300 being connected to one of the links.
[0126]
　7, first, the remote UE300 is measurement on the link currently connected (step S52).
[0127]
　Then, the remote UE300 determines whether or not the communication with the association relationship relay UE 200 (step S54). If it is determined not to communicate with the association relationship relay UE 200 (step S54 / NO), the remote UE300 is measurement of other links (step S60).
[0128]
　If it is determined that communication with the association relationship relay UE 200 (step S54 / YES), the remote UE300, the quality of the link currently connected is determined whether better than a predetermined threshold value (step S56) . If the quality of the link currently connected has been determined that worse than a predetermined threshold value (step S56 / NO), the remote UE300 is measurement of other links (step S60).
[0129]
　If the quality of the link currently connected has been determined to better than a predetermined threshold value (step S56 / YES), the remote UE300 determines whether or not the request to measurement of other links (step S58). If it is determined that the request to measurement of other links (step S58 / YES), the remote UE300 is measurement of other links (step S60).
[0130]
　If it is determined not to be requested to measurement of other links (step S58 / NO), the process ends.
[0131]
　(2) the destination link selection of
　(2.1) Selection entity
　selection of connection destination link remote UE300 is performed by any entity. Incidentally, there is a case where the selection of the destination link, also referred to as a determination (decision (decision)). Also, the here the destination, shall mean the camp-on destination.
[0132]
　Remote UE 300
　determines the destination link of the remote UE 300 may be performed by a remote UE 300. In that case, remote UE300 is measurement result (e.g., RSRP etc. RSRP and side links downlink) based on, for determining a link destination in itself.
[0133]
　Relay UE 200
　determines the destination link remote UE300 may be performed by the relay UE 200. In that case, remote UE300 reports the information indicating at least measurement results to the relay UE 200. Then, the relay UE200, based on the report from the remote UE 300, to determine the link of the destination remote UE 300.
[0134]
　Report contents of which are variously considered. For example, reporting the contents includes information indicating the measurement result. Report content may include other information such as the battery information or association information.
[0135]
　Report timing is variously considered. For example, it may be reported periodically. It may also be reported from the measurement after X subframe. The value of this X may be a predetermined value, may be notified by the base station 100 or relay UE 200, it may be determined by the remote UE 300. May also be reported at a timing report request is received from the relay UE200 or base station 100.
[0136]
　Reporting route is a side link.
[0137]
　- the base station 100
　determines the destination link remote UE300 may be performed by the base station 100. In that case, remote UE300 reports the information indicating at least measurement result to the base station 100. Then, the base station 100, based on the report from the remote UE 300, to determine the link of the destination remote UE 300.
[0138]
　Report contents of which are variously considered. For example, reporting the contents includes information indicating the measurement result. Report content may include other information such as the battery information or association information.
[0139]
　Report timing is variously considered. For example, it may be reported periodically. It may also be reported from the measurement after X subframe. The value of this X may be a predetermined value, may be notified by the base station 100 or relay UE 200, it may be determined by the remote UE 300. May also be reported at a timing report request is received from the relay UE200 or base station 100.
[0140]
　Reporting path, indirectly via a relay UE 200, it may be i.e. side and uplink. In addition, the report path may directly, ie be only the uplink.
[0141]
　(2.2) determination method
　based on the association information, the connection destination of the link (e.g., camp-on links) are determined. Specifically, the destination link is determined according to priority based on the association information. Link with the association relationship relay UE200 is preferentially determined as a connection destination of the link. Thus, remote UE300 while suppressing power consumption, it is possible to perform secure communication. The link with the base station 100, at priority second only to link with the association relationship relay UE 200, is determined as the destination of the link. Thus, remote UE300 is able to perform at least secure communications. The link between the association irrelevant relay UE200 is at priority second only to link with a base station 100, is determined as the destination of the link. Thus, remote UE300 is able to suppress power consumption. Thus, the connection destination, most preferentially determined in the association relationship relay UE 200, is determined in the base station 100 or otherwise, is determined to be the relay UE 200 has no association relationship otherwise.
[0142]
　Connection destination of the link in accordance with priority based on the association information as described above, is determined based on the measurement results. Hereinafter, an example of the determination condition.
[0143]
　Association related relay UE200
　For example, link quality threshold Q of the association related to relay UE200 Sidelink better, link quality of the base station 100 threshold Q Uu_link case worse than, the connection destination association related relay UE200 is determined.
[0144]
　For example, link quality threshold Q of an association related relay UE 200 Sidelink better link quality to the base station 100 is the threshold value Q Uu_link may than the quality of the Uu link may magnification X than the quality of the side links If the threshold is not exceeded theta, connection destination is determined in association related relay UE 200. Here, X = Q Uu_link / Q Sidelink is.
[0145]
　For example, link quality threshold Q of an association related relay UE 200 Sidelink better link quality to the base station 100 is the threshold value Q Uu_link may than the quality of the Uu link may magnification X than the quality of the side links If it exceeds the threshold value theta, connection destination is determined in the base station 100. Here, X = Q Uu_link / Q Sidelink is.
[0146]
　- the base station 100
　for example, link quality threshold Q with the base station 100 Uu_link better link quality to the association relationship relay UE200 threshold Q Sidelink case worse than, the destination is determined in the base station 100.
[0147]
　Association relationship there is no relay UE200
　For example, link quality threshold Q of the association related to relay UE200 Sidelink worse than, link quality threshold Q with the base station 100 Uu_link worse than, the link quality of the relay UE200 there is no association relationship There threshold Q Sidelink case better than, the destination is determined in the base station 100.
[0148]
　It has been described an example of the determination condition of the connected links. Above threshold Q Uu_link , threshold Q Sidelink is and threshold theta, may be set notification or pre by the base station 100 or relay UE 200, it may be determined by the decision entity. Furthermore, these thresholds may be dynamically changed according to measurement results.
[0149]
　<< 3. The second embodiment
　>> <3.1. Technical problem>
　In the D2D communication, each UE performs measurement separately. Some remote UE is envisioned located proximate and very other remote UE. In that case, the measurement result of each of the remote UE is considered very similar. Then, that all remote to measurement is considered to be a waste of radio resources and power.
[0150]
　Therefore, in this embodiment, since the measurement result is to share the measurement results between the plurality of remote UE that is assumed to be similar, it proposes suppressing mechanism the overall power consumption of the plurality of remote UE.
[0151]
　<3.2. Technical features>
　more remote UE300 located close share the measurement results.
[0152]
　Therefore, among the plurality of remote UE 300 located in close, one or a small number of remote UE 300 performs measurement becomes representative, share the results with other remote UE 300. Specifically, the remote UE 300 may close if there is another remote UE 300, when it is selected as the representative to share with other nearby remote UE 300 generates shared information based on the measurement result by performing measurement, If that were not selected as the representative receives the sharing of shared information from other nearby remote UE300 selected as representative. Thus, it is possible to suppress the power consumption of the entire plurality of remote UE covalently. Note that the neighborhood of the plurality of remote UE 300, a plurality of remote UE 300 located in a range where measurement results are similar. Specifically, the neighborhood of the plurality of remote UE 300, which is owned by the same owner, the relative positions and having a same mobility does not change, or at each other within a predetermined distance, the predetermined condition of equal a plurality of remote UE300 satisfying.
[0153]
　On the other hand, the base station 100 and the relay UE200, among the plurality of remote UE300 located close to each other, shared information generated based on the measurement result by the remote UE300 selected as representative, the remote was not selected as the representative UE300 to relay the share to. Thus, the remote UE300 and other remote UE300 selected as the representative, the information sharing is achieved.
[0154]
　Thus, measurement results by some remote UE 300 among the plurality of remote UE 300 is shared for other remote UE 300. Therefore, it is possible to reduce the measurement times across a plurality of remote UE, it is possible to suppress the power consumption of the entire accordingly.
[0155]
　The remote UE 300 that serves as a representative, also referred to as a representative remote UE 300. Remote UE 300, which may simply referred representative both. Also, the neighborhood of the plurality of remote UE 300, also referred to as remote UE group. Representatively in the remote UE group is selected, the measurement result is shared.
[0156]
　Referring to FIG. 8, an example of the flow of processing relating to sharing of measurement results.
[0157]
　Figure 8 is a flowchart illustrating an example of a measurement process flow that is performed in the remote UE group according to the present embodiment. The process shown in FIG. 8, and is executed by the remote UE group consisting of a plurality of remote UE300 located nearby. As shown in FIG. 8, the remote UE group selects a representative remote UE 300 (step S62). Then, the representative remote UE300 performs measurement (step S64), and shared with other remote UE300 included the measurement result to the remote UE group (step S66). Then, a plurality of remote UE300 included in the remote UE group determines the destination link individually (step S68).
[0158]
　In this drawing, an example in which the determination of the destination link is made since the shared measurement result, the present technology is not limited to such an example. For example, it will undergo the determination of the destination of the link based on the measurement result, the determination result may be shared.
[0159]
　(1) Selection of a representative remote UE 300
　remote UE 300 that is selected to play a role as a representative will be operated as a representative remote UE 300. The following describes the selection of a representative remote UE 300.
[0160]
　And selection entity
　will be described first selection subject of representative remote UE300.
[0161]
　Representative remote UE300 may be selected based on an instruction by the base station 100 or relay UE 200. Instruction from the base station 100, RRC (Radio Resource Control) signaling, DCI (Downlink Control Information) or system information (e.g., SIB (System Information Block)) may be transmitted using. Also, an instruction from the relay UE200 may be transmitted using a SA or data packets.
[0162]
　Representative remote UE300 may be selected alternately. For example, the timer is set, the remote UE300 may serve as a representative responsible until the timer expires, after expiration of a next remote UE300 in its role as a representative. Timer and replacement order may be set notice or in advance by the base station 100, may be notified by the relay UE 200, it may be set by a remote UE 300.
[0163]
　Remote UE300 may be made to voluntarily representative. For example, remote UE300, by approval by sending a request to the base station 100 or relay UE 200, become spontaneously representative. If the same remote UE one or more remote UE300 included in the group sent a request to the representative, the base station 100 or relay UE200 determines whether to approve the request. Same from a remote UE group only one remote UE300 may be approved as a representative. For example, by comparing the state of such position information and cell information between a plurality of remote UE300 to would spontaneously representative, remote UE300 is determined to be approved as a representative. On the other hand, a plurality of remote UE300 may be approved as a representative of the same remote UE group. In that case, the base station 100 or relay UE200 may indicate a plurality of behavior of remote UE300 approved as a representative. For example, a plurality of the representative remote UE300 is at different timings (e.g., alternates) to perform the measurement, or a different remote UE300 to a shared destination each other, the behavior may be indicated.
[0164]
　Which remote UE300 is selected as a representative, or may be set in advance by the base station 100.
[0165]
　- selection timing
　then representative selection of the remote UE 300 (or reselection) timing will be described.
[0166]
　Representative remote UE300 may be periodically selected. For example, selection periods may be notified by the base station 100 or relay UE 200. The selection period may be determined by the remote UE 300. The selection period may be set in advance by the base station 100.
[0167]
　Representative remote UE300 may be selectively non-periodically. For example, the base station 100 or relay UE200 is, by sending a request to select a representative, the representative remote UE300 may be selected. Further, the current representative remote UE300 predetermined condition (e.g., release criteria representative described later) when filled may be newly representative remote UE300 is selected. The predetermined conditions, as the release criteria described below, low battery, the withdrawal or the like from a remote UE group that splits off or currently belongs from the timer expiration or cell, measurement difficult to carry out as a representative more it is a condition to be. Further, since the release of a representative selection in the remote UE group occurs after X subframes, the representative remote UE300 may be selected.
[0168]
　And selection criteria
　will be explained next selection criterion representative remote UE 300.
[0169]
　Capability of each remote UE300 included in the remote UE group (e.g., battery information, and the processing capability information (e.g., computing power and storage capability)) based on the representative may be selected. For example, battery level and processing capability is high remote UE300 is selected as the representative.
[0170]
　Based on the geographic location information for each remote UE300 included in the remote UE group, the representative may be selected. For example, remote UE300 of measurement is located in the easy point is selected as the representative.
[0171]
　Based on the relative positional information of each remote UE300 included in the remote UE group, the representative may be selected. For example, remote UE300 is located near the center of the remote UE group is selected as representative.
[0172]
　Each remote UE300 included in the remote UE group, based on the link quality between the base station 100 and / or relay UE 200, the representative may be selected. For example, the link quality is best, poor, remote UE300 is close to or median average value is selected as the representative.
[0173]
　Based on the security requirements of each remote UE300 included in the remote UE group, the representative may be selected. For example, security requirements highest remote UE300 is selected as the representative.
[0174]
　Based on the association information for each remote UE300 included in the remote UE group, the representative may be selected. For example, from the same relay UE200 and Association relationship plurality of remote UE 300, one of the representative remote UE 300 may be selected.
[0175]
　(2) release of a representative selection
　Selection of representative may be released. Representative remote UE300 which plays a role as a representative, when deselected representative, will operate as normal remote UE300 unrepresentative. The following describes cancellation of the selection of a representative.
[0176]
　And releasing entity
　will be described first released subject of the choice of representative.
[0177]
　Selection of a representative may be released on the basis of the indication by the base station 100 or relay UE 200.
[0178]
　Selection of a representative may be canceled by the representative remote UE300 itself.
[0179]
　And release timing
　will be explained next release timing of the selection of a representative.
[0180]
　Selection of a representative may be released periodically. Release period may be notified by the base station 100 or relay UE 200. Further, the release period may be determined by the remote UE 300. Further, the release period may be set in advance by the base station 100.
[0181]
　Selection of a representative may be released aperiodic. For example, the base station 100 or relay UE200 is at the timing of sending a request to select a representative, the selection of the representative the current representative remote UE300 was responsible may be released. For example, the current representative remote UE300 predetermined condition (e.g., release criteria representative described later) when filled is, the selection of a representative may be released. The predetermined conditions, as the release criteria described below, low battery, the withdrawal or the like from a remote UE group that splits off or currently belongs from the timer expiration or cell, measurement difficult to carry out as a representative more it is a condition to be.
[0182]
　And release criteria
　will be explained next release criteria for the selection of representative.
[0183]
　Capabilities of the representative remote UE 300 (e.g., battery information, and the processing capability information (e.g., computing power and storage capability)) based on the selection of a representative may be released. For example, when the battery remaining amount and capacity of the representative remote UE300 is below the threshold value, the selection of a representative is canceled.
[0184]
　Based on the elapsed time from the representative remote UE300 is selected, the selection of a representative may be released. For example, the representative remote UE300 predetermined timer after the selected is when expired, the selection of a representative is canceled.
[0185]
　Based on the geographic position information and predicted future position of the representative remote UE 300, the selection of a representative may be released. For example, the representative remote UE300 is measurement is located in a difficult place, when it is predicted that may be or future position disengaged from the cell, selection of a representative is canceled.
[0186]
　Based on the relative position information with other remote UE 300 included in the same remote UE group and the representative remote UE 300, the selection of a representative may be released. For example, the representative position of the remote UE 300 is, when apart from the other remote UE 300, the selection of a representative is canceled.
[0187]
　Representative remote UE 300, based on the link quality between the base station 100 and / or relay UE 200, the selection of a representative may be released. For example, if the link quality between the base station 100 and / or relay UE200 representative remote UE300 is worse than the threshold value, the selection of a representative is canceled.
[0188]
　Based on the security requirements of the representative remote UE 300, the selection of a representative may be released. For example, if to meet the security requirements of a representative remote UE300 became difficult situation, the selection of a representative is canceled.
[0189]
　(3) Measurement sharing results
　and share the information being
　shared information may include a variety of information.
[0190]
　For example, the shared information may include the measurement result.
[0191]
　The shared information was based on measurement results may include decision result of the connection destination link. Decision results include for example the destination link, the identification information of the base station 100 or relay UE200 connect.
[0192]
　The shared information may include information indicating the status of the representative remote UE 300. The information indicating the state of a representative remote UE 300, UID, geolocation, battery information, the identification information of the association relationship relay UE 200, cell ID of the connected, and the current status of communication with the relay UE 200 or base station 100 include information indicating the.
[0193]
　The shared information may include information indicating the expiration date of the measurement results. For example, measurement results, during the period from being performed measurement until after X subframes may be effective.
[0194]
　The shared information may include the amount of change from the information shared in the previous. For example, the shared information may include a decrease or amelioration of the RSRP covalently last time.
[0195]
　And sharing route
　sharing route is variously considered.
[0196]
　Shared route may include only the side links. For example, shared information is shared to other remote UE300 from the representative remote UE300 through the relay UE 200.
[0197]
　Shared path, Uu link (i.e., uplink and downlink) only may contain. For example, sharing information, via the base station 100 is shared to other remote UE 300 from the representative remote UE 300.
[0198]
　Shared route, the side links and Uu link (i.e., uplink and downlink) and may contain. For example, the shared information is representative remote UE300 base station 100 from, then may be shared to other remote UE300 through the relay UE 200. The shared information may be shared from the representative remote UE 300 relay UE 200, then through the base station 100 to another remote UE 300. The shared information may represent a remote UE 300 from the first relay UE 200, then the base station 100, further via a second relay UE 200, it may be shared to other remote UE 300.
[0199]
　Device on the shared path (base station 100 or relay UE 200), after receiving the shared information, shared information, when, in which remote UE 300, whether to forward (e.g., to send directly, still other devices to determine whether to via).
[0200]
　And sharing timing
　sharing timing is variously considered.
[0201]
　Share information may be periodically shared. For example, sharing period may be notified by the base station 100 or relay UE 200. The shared period may be set in advance by the base station 100.
[0202]
　Share information may be shared aperiodic. For example, the shared information may be shared after X subframe from being performed measurement. Incidentally, X is may be a predetermined value, it may be reported by the base station 100 or relay UE 200. The representative remote UE300 is at the timing of receiving the sharing request from the relay UE200 or base station 100 may share the shared information.
[0203]
　<< 4. Example
　>> <4.1. The first embodiment>
　This embodiment relates to resource configuration corresponding to the presence or absence of the association relationship.
[0204]
　Figure 9 is a diagram for explaining the first embodiment. As shown in FIG. 9, the base station 100 is operated to cell 101, relay UE200 (200A ~ 200C) and remote UE300 within its coverage are located.
[0205]
　Remote UE300 is connected to the base station 100, there is an association relationship between the relay UE200A and the relay UE200B, is that there is no association relationship between the relay UE200C. However, the remote UE300 shall not subjected to any relay UE200 both communication association relationship.
[0206]
　Association information is used for assignment of side link resources. The relay UE200 and the remote UE 300, based on the association information, resource settings for the discovery announcement and monitoring are carried out. Resource setting is notified by the base station 100, it is dynamically adjusted, or performed in advance. For example, resource set may be performed by the base station 100 when each of the remote UE300 and three relays UE200 is connected to the base station 100.
[0207]
　Furthermore, the association information is used for measurement. Incidentally, BLER of the downlink and side links is assumed to be a measure for the measurement.
[0208]
　Hereinafter, an example of a resource set and measurement in the situation shown in FIG. 9 will be described with reference to FIGS.
[0209]
　Figure 10 is a diagram for explaining an example of a resource set and measurement in the present embodiment. In the example shown in FIG. 10, depending on whether the association relationship, they set different resource pools. Association related to the relay UE for the resource pool is up to frequency f1 ~ f2, resource pool there is no association relationship relay UE for is up to frequency f2 ~ f3. Association associated relay UE200A and relay UE200B the remote UE300 uses a frequency f1 ~ f2, place a side link discovery. On the other hand, the relay is no association relationship between the remote UE 300 UE200C uses the frequency f2 ~ f3, place a side link discovery. In this case, remote UE300 may be monitored only up to a frequency f1 ~ f2. Thus, remote UE300, since the monitor to frequency f2 ~ f3 is unnecessary, power consumption is suppressed.
[0210]
　In FIG. 10, an example is shown of FDD, the same set even if the TDD may be performed.
[0211]
　Figure 11 is a diagram for explaining an example of a resource set and measurement in the present embodiment. In the example shown in FIG. 11, fine granularity of resource as compared to the resource pool (e.g., resource blocks) are allocated to the dedicated to individual relay UE 200. Remote UE300 is information indicating the resources allocated to each of the relay UE 200, and those reported from the base station 100. In this case, remote UE300 is measurement only resources assigned dedicated to each of the relay UE200A and relay UE200B. Thus, remote UE300 is, it is possible to minimize the resources to perform the measurement, the power consumption is suppressed.
[0212]
　<4.2. Second Embodiment>
　This embodiment relates to resource configuration corresponding to the presence or absence of the association relationship.
[0213]
　Figure 12 is a diagram for explaining the second embodiment. As shown in FIG. 12, the base station 100 is operated to cell 101, relays UE200A and 200B are located within its coverage, remote UE300 is located outside the coverage. However, the relay UE200A far from a remote UE 300, it is assumed communication is difficult.
[0214]
　Remote UE300 is connected to the base station 100, there is an association relationship with relay UE200A, the relay UE200B shall no association relationship. However, the remote UE300 shall not subjected to any relay UE200 both communication association relationship.
[0215]
　In this embodiment, as in the first embodiment, the association information is used for assignment and measurement of the side link resources. An example thereof will be described with reference to FIG. 13.
[0216]
　Figure 13 is a diagram for explaining an example of a resource set and measurement in the present embodiment. In the example shown in FIG. 13, depending on whether the association relationship, they set different resource pools. Association related to the relay UE for the resource pool is up to frequency f1 ~ f2, resource pool there is no association relationship relay UE for is up to frequency f2 ~ f3. Therefore, relay UE200A performs discovery announcement at a frequency f1 ~ f2, relay UE200B performs discovery announcement in a frequency f2 ~ f3.
[0217]
　For example, it is assumed that the 40ms of the timer has been set in advance. Remote UE300, first, a resource pool allocated to the association relationship relay UE200A, performs measurement at a frequency f1 ~ f2 subframe and PRB (Physical Resource Block). However, it is assumed that the 40ms without being able to detect the discovery announcement from the relay UE200A has elapsed. Then, the remote UE300 switches the frequency of measurement. For more information, remote UE300 is a resource pool assigned to no relay UE200B an association relationship, performs measurement in the sub-frame and PRB frequency f2 ~ f3. Thus, remote UE300 will be successfully detected discovery announcement from the relay UE200B.
[0218]
　<4.3. Third Embodiment>
　This embodiment relates to a specific example of implementation / non-implementation of a measurement skipped.
[0219]
　The contents of each scenario in this example, shown in Table 1 below.
[0220]
[Table 1]

[0221]
　Link performance (i.e., link quality) Evaluation of shall be performed by the BLER. It should be noted, BLER as small as well, as bad as large. For example, remote UE300 determines that good link quality when BLER is less than 1%, it is assumed that evaluates to communicate on that link.
[0222]
　It will be described scenario 1. Remote UE300 is in communication with the association relationship relay UE200. The link quality, BLER may than 1% or less. In addition, remote UE300 is not subject to a measurement request. Therefore, remote UE300 skips measurement of other links.
[0223]
　It will be described scenario 2. Remote UE300 is in communication with the association relationship relay UE200. The link quality, BLER may than 1% or less. However, the remote UE300 is undergoing a measurement request. Therefore, remote UE300 performs measurement of other links.
[0224]
　It will be described scenario 3. Remote UE300 is in communication with the association relationship relay UE200. In addition, remote UE300 is not subject to a measurement request. However, link quality is bad because the BLER is 1% or more. Therefore, remote UE300 performs measurement of other links.
[0225]
　It will be described scenario 4 to 7. Remote UE300 is in communication that there is no association relationship relay UE200. Therefore, remote UE300, with or without a link quality and a measurement request performs measurement of other links.
[0226]
　<4.4. Fourth Embodiment>
　This embodiment relates to a specific example of the principal for determining the connection destination link.
[0227]
　Hereinafter, as described with reference to FIGS. 14 to 18, determining entity, the base station 100 may be performed by either the relay UE200 or remote UE 300.
[0228]
　Figure 14 is a sequence diagram for explaining the first scenario of the present embodiment. As shown in FIG. 14, in this scenario, the remote UE300 performs the measurement and decision (i.e., the determination of the destination link) (step S102). Note that criteria for determining the destination links such as thresholds shall be set in advance. In this way, the remote UE300 may be performed by the decision
[0229]
　Figure 15 is a sequence diagram for explaining the second scenario of the present embodiment. In this scenario, the remote UE300 is assumed to be capable of communicating with relay UE 200. For example, remote UE300 are either connected to the relay UE 200, is connected to the relay UE 200 and remote UE300 in coverage. As shown in FIG. 15, first, the remote UE300 performs measurement (step S112), and transmits the measurement report including the measurement result to the relay UE 200 (step S114). Then, the relay UE200 performs decision (step S116), and transmits the decision result to the remote UE 300 (step S118). In this way, the relay UE200 may be performed by the decision.
[0230]
　Figure 16 is a sequence diagram for describing a third scenario of the present embodiment. In this scenario, the remote UE300 is assumed to be capable of communication with the base station 100. As shown in FIG. 16, first, the remote UE300 performs measurement (step S122), the measurement report including the measurement result, and transmits the relay UE200 through the base station 100 (step S124, S126). Then, the relay UE200 performs decision (step S128), the decision result is transmitted to the remote UE300 through the base station 100 (step S130, S132). In this way, the relay UE200 may be performed by the decision.
[0231]
　Figure 17 is a sequence diagram for explaining the fourth scenario of the present embodiment. In this scenario, the remote UE300 is assumed to be capable of communicating with relay UE 200. For example, remote UE300 are either connected to the relay UE 200, is connected to the relay UE 200 and remote UE300 in coverage. As shown in FIG. 17, first, the remote UE300 performs measurement (step S142), the measurement report including the measurement result, and transmits to the base station 100 via the relay UE 200 (step S144, S146). Then, the base station 100 performs decision (step S148), the decision result is transmitted to the remote UE300 through the relay UE 200 (step S150, S152). In this way, the base station 100 may perform the decision.
[0232]
　Figure 18 is a sequence diagram for explaining the fifth scenario of the present embodiment. In this scenario, the remote UE300 is assumed to be capable of communication with the base station 100. As shown in FIG. 18, first, the remote UE300 performs measurement (step S162), and transmits the measurement report including the measurement result to the base station 100 (step S164). Then, the base station 100 performs decision (step S166), and transmits the decision result to the remote UE 300 (step S168). In this way, the base station 100 may perform the decision.
[0233]
　<4.5. Example> of the fifth
　embodiment relates to the priority of the connected links
[0234]
　The contents of each scenario in this example, shown in Table 2 below.
[0235]
[Table 2]

[0236]
　Hereinafter, when the first to fifth measurement results shown in Table 2 were obtained, the determination of the destination link is described. The threshold value of BLER of Uu linked with 10%, the threshold value of the BLER of the side links is 30%. Also, the quality of the Uu link the threshold θ for good magnification X than the quality of the side links are assumed to be 1.2.
[0237]
　According to the first measurement result, BLER of side links with the association relationship relay UE200 is below the threshold. In addition, although in the following BLER also the threshold value of the Uu link, towards the BLER of the side links is better than BLER of Uu link. Thus, remote UE300 is connected to the association relationship relay UE 200.
[0238]
　According to a second measurement result, the side links of the association related relay UE 200 BLER, and BLER of Uu link is below the threshold. On the other hand, BLER of the side links of the association related to relay UE200 is 1.02 times the BLER of Uu link. However, the magnification 1.02 is below the threshold theta. Thus, remote UE300 is connected to the association relationship relay UE 200.
[0239]
　According to a third measurement result, the side links of the association related relay UE 200 BLER, and BLER of Uu link is below the threshold. On the other hand, BLER of the side links of the association related to relay UE200 is 1.41 times the BLER of Uu link. Then, the magnification 1.02 exceeds the threshold theta. Thus, remote UE300 is connected to the base station 100.
[0240]
　According to a fourth measurement results, BLER of side links with the association relationship relay UE200 is above the threshold. On the other hand, BLER of Uu link is below the threshold. Thus, remote UE300 is connected to the base station 100.
[0241]
　According to the fifth measurement result, the side links of the association related relay UE 200 BLER, and BLER of Uu link is above the threshold. On the other hand, BLER of side links the relay UE200 no association relationship is less than the threshold value. Thus, remote UE300 is connected to no association relationship relay UE 200.
[0242]
　<4.6. Example> sixth
　embodiment relates to the selection of remote UE300 which serves as a representative.
[0243]
　Figure 19 is a diagram for explaining the present embodiment. As shown in the left diagram of FIG. 19, the base station 100 is operated to cell 101, relays UE200 is located within its coverage. Then, around the relay UE 200, six remote UE300 (300A ~ 300F) are located close to each other. Here, the relay UE200 is, which remote UE300 is assumed to determine the role as a representative. The decision criteria is assumed to be the battery level. An example of the battery remaining amount of each of the remote UE 300, shown in Table 3 below.
[0244]
[table 3]

[0245]
　In the example shown in Table 3, the remote UE300A most battery is large. Therefore, relay UE200, as shown in the right diagram of FIG 19, to determine the remote UE300A as a representative. Remote UE300A will measurement the Uu links and each link quality side links the relay UE200 and base station 100. The remote UE300A share the measurement results close to other remote UE300 (300B ~ 300F).
[0246]
　<4.7. Example> The seventh
　embodiment relates to a release and re-selection of a representative selection of the representative.
[0247]
　Figure 20 is a diagram for explaining the present embodiment. As shown in the left diagram of FIG. 20, in the situation shown in the right diagram of FIG. 19, it is assumed that a representative remote UE300A moves away from another remote UE 300. In this case, the measurement result when the measurement results and other remote UE300 remote UE300A is tentatively performed measurement there is a possibility that not similar. Therefore, the re-selection is made of a representative.
[0248]
　For example, referring to Table 3, in the remote non UE300A, remote UE300F most battery is large. Therefore, relay UE200, as shown in the right diagram of FIG 20, to determine the remote UE300F as a representative. Remote UE300F will measurement the Uu links and each link quality side links the relay UE200 and base station 100. The remote UE300F share the measurement results close to other remote UE300 (300B ~ 300E).
[0249]
　<4.8. Example> eighth
　embodiment relates to sharing of shared information.
[0250]
　Hereinafter, as described with reference to FIGS. 21 to 23, the shared information may be shared only via the side links. Note that the normal remote UE, a remote UE that does not play a role as a representative. Representative remote UE300A and normal remote UE300B is assumed to be both connected to the relay UE 200.
[0251]
　Figure 21 is a sequence diagram for explaining the first scenario of the present embodiment. As shown in FIG. 21, the representative remote UE300A performs measurement and decision (i.e., the determination of the destination link) (step S202). Then, the representative remote UE300A is a normal remote UE300B via the relay UE 200, transmits the decision result (step S204, S206). Thus, decision may be made by the representative remote UE300A.
[0252]
　Figure 22 is a sequence diagram for explaining the second scenario of the present embodiment. As shown in FIG. 22, the representative remote UE300A performs measurement (step S212), and transmits the measurement result to the relay UE 200 (step S214). Then, the relay UE200 performs decision on the basis of the measurement result (step S216), and transmits the decision result to each of the representative remote UE300A and normal remote UE300B (step S218, S220). Thus, decision may be performed by the relay UE 200.
[0253]
　Figure 23 is a sequence diagram for describing a third scenario of the present embodiment. As shown in FIG. 23, the representative remote UE300A performs measurement and decision (i.e., the determination of the destination link) (step S232). Then, the representative remote UE300A is a normal remote UE300B via the relay UE 200, transmits the measurement result (step S234, S236). Then, the normal remote UE300B performs decision on the basis of the measurement result (step S238). Thus, decision may be performed by both the representative remote UE300A and normal remote UE300B.
[0254]
　Hereinafter, as described with reference to FIGS. 24 to 26, the shared information may be shared only via the Uu link. The representative remote UE300A and normal remote UE300B is assumed to be connected together to the base station 100.
[0255]
　Figure 24 is a sequence diagram for explaining a fourth scenario of the present embodiment. As shown in FIG. 24, the representative remote UE300A performs measurement and decision (step S242). Then, the representative remote UE300A is a normal remote UE300B via the base station 100 transmits the decision result (step S244, S246). Thus, decision may be made by the representative remote UE300A.
[0256]
　Figure 25 is a sequence diagram for explaining the fifth scenario of the present embodiment. As shown in FIG. 25, the representative remote UE300A performs measurement (step S252), and transmits the measurement result to the base station 100 (step S254). Then, the base station 100 performs decision on the basis of the measurement result (step S256), and transmits the decision result to each of the representative remote UE300A and normal remote UE300B (step S258, S260). Thus, decision may be performed by the base station 100.
[0257]
　Figure 26 is a sequence diagram for explaining a sixth scenario of the present embodiment. As shown in FIG. 26, the representative remote UE300A performs measurement and decision (step S272). Then, the representative remote UE300A is a normal remote UE300B via the base station 100 transmits the measurement result (step S274, S276). Then, the normal remote UE300B performs decision on the basis of the measurement result (step S278). Thus, decision may be performed by both the representative remote UE300A and normal remote UE300B.
[0258]
　Hereinafter, as described with reference to FIGS. 27 to 30, the shared information may be shared via the Uu link and side links. The representative remote UE300A is connected to the relay UE 200, normal remote UE300B is assumed to connect to the base station 100.
[0259]
　Figure 27 is a sequence diagram for explaining a seventh scenario of the present embodiment. As shown in FIG. 27, the representative remote UE300A performs measurement and decision (step S282). Then, the representative remote UE300A, first relay UE 200, via the base station 100 to the next, and transmits the decision result to the normal remote UE300B (step S284, S286, S288). Thus, decision may be made by the representative remote UE300A.
[0260]
　Figure 28 is a sequence diagram for explaining the eighth scenario of the present embodiment. As shown in FIG. 28, the representative remote UE300A performs measurement (step S292), and transmits the measurement result to the relay UE 200 (step S294). Then, the relay UE200 performs decision on the basis of the measurement result (step S296), and transmits the decision result to the representative remote UE300A (step S298). Further, the relay UE200 is a normal remote UE300B via the base station 100 transmits the decision result (step S300, S302). Thus, decision may be performed by the relay UE 200.
[0261]
　Figure 29 is a sequence diagram for explaining a ninth scenario of the present embodiment. As shown in FIG. 29, the representative remote UE300A performs measurement (step S312), and transmits the measurement result to the base station 100 via the relay UE 200 (step S314, S316). Then, the base station 100 performs decision on the basis of the measurement result (step S318), the representative remote UE300A via the relay UE 200, transmits the decision result (step S320, S322). Further, the base station 100 transmits the decision result to the normal remote UE300B (step S324). Thus, decision may be performed by the base station 100.
[0262]
　Figure 30 is a sequence diagram for explaining the tenth scenario of the present embodiment. As shown in FIG. 30, the representative remote UE300A performs measurement and decision (step S332). Then, the representative remote UE300A, first relay UE 200, via the base station 100 to the next, and transmits the measurement result to the normal remote UE300B (step S334, S336, S338). Then, the normal remote UE300B performs decision on the basis of the measurement result (step S340). Thus, decision may be performed by both the representative remote UE300A and normal remote UE300B.
[0263]
　Hereinafter, as described with reference to FIGS. 31 through 34, the shared information may be shared via the Uu link and side links. The representative remote UE300A is connected to the base station 100, the normal remote UE300B is assumed to connect to the relay UE 200.
[0264]
　Figure 31 is a sequence diagram for explaining the eleventh scenario of the present embodiment. As shown in FIG. 31, the representative remote UE300A performs measurement and decision (step S352). Then, the representative remote UE300A, first base station 100, via the relay UE200 to the next, and transmits the decision result to the normal remote UE300B (step S354, S356, S358). Thus, decision may be made by the representative remote UE300A.
[0265]
　Figure 32 is a sequence diagram for explaining a twelfth scenario of the present embodiment. As shown in FIG. 32, the representative remote UE300A performs measurement (step S362), via the base station 100 transmits the measurement result to the relay UE 200 (step S364, S366). Then, the relay UE200 performs decision on the basis of the measurement result (step S368). Then, the relay UE200 transmits the decision result to the normal remote UE300B (step S370), and transmits the decision result to the representative remote UE300A via the base station 100 (step S372, S374). Thus, decision may be performed by the relay UE 200.
[0266]
　Figure 33 is a sequence diagram for explaining a thirteenth scenario of the present embodiment. As shown in FIG. 33, the representative remote UE300A performs measurement (step S382), and transmits the measurement result to the base station 100 (step S384). Then, the base station 100 performs decision on the basis of the measurement result (step S386). Then, the base station 100 transmits the decision result to the representative remote UE300A (step S388), and transmits the decision result to the normal remote UE300B via the relay UE 200 (step S390, S392). Thus, decision may be performed by the base station 100.
[0267]
　Figure 34 is a sequence diagram for explaining the 14th scenario of the present embodiment. As shown in FIG. 34, the representative remote UE300A performs measurement and decision (step S402). Then, the representative remote UE300A, first base station 100, via the relay UE200 to the next, and transmits the measurement result to the normal remote UE300B (step S404, S406, S408). Then, the normal remote UE300B performs decision on the basis of the measurement result (step S410). Thus, decision may be performed by both the representative remote UE300A and normal remote UE300B.
[0268]
　Hereinafter, as described with reference to FIGS. 35 to 40, the shared information may be shared via the Uu link and side links. The representative remote UE300A the relay UE200A
connected, normal remote UE300B is assumed to connect to the relay UE200B.
[0269]
　Figure 35 is a sequence diagram for explaining a fifteenth scenario of the present embodiment. As shown in FIG. 35, the representative remote UE300A performs measurement and decision (step S422). Then, the representative remote UE300A, first relay UE200A, the base station 100 to the next, via the relay UE200B the next, and transmits the decision result to the normal remote UE300B (step S424, S426, S428, S430). Thus, decision may be made by the representative remote UE300A.
[0270]
　Figure 36 is a sequence diagram for explaining a sixteenth scenario of the present embodiment. As shown in FIG. 36, the representative remote UE300A performs measurement (step S442), and transmits the measurement result to the relay UE200A (step S444). Then, the relay UE200A performs decision on the basis of the measurement result (step S446), and transmits the decision result to the representative remote UE300A (step S448). Further, the relay UE200A, first base station 100, via the relay UE200B the next, and transmits the decision result to the normal remote UE300B (step S450, S452, S454). Thus, decision may be performed by the relay UE200A.
[0271]
　Figure 37 is a sequence diagram for explaining a seventeenth scenario of the present embodiment. As shown in FIG. 37, the representative remote UE300A performs measurement (step S462), first relay UE200A, via the base station 100 to the next, and transmits the measurement result to the relay UE200B (step S464, S466, S468) . Then, the relay UE200B performs decision on the basis of the measurement result (step S470), and transmits the decision result to the normal remote UE300B (step S472). Further, the relay UE200B, first base station 100, via the relay UE200A the next, and transmits the decision result to the representative remote UE300A (step S474, S476, S478). Thus, decision may be performed by the relay UE200B.
[0272]
　Figure 38 is a sequence diagram for explaining an eighteenth scenario of the present embodiment. As shown in FIG. 38, the representative remote UE300A performs measurement (step S482), and transmits the measurement result to the relay UE200A (step S484). Then, the relay UE200A performs decision on the basis of the measurement result (step S486), and transmits the decision result to the representative remote UE300A (step S488). Further, the relay UE200A is the relay UE200B via the base station 100 transmits the measurement result (step S490, S492). Then, the relay UE200B performs decision on the basis of the measurement result (step S494), and transmits the decision result to the normal remote UE300B (step S496). Thus, decision may be performed by both the relay UE200A and relay UE200B.
[0273]
　Figure 39 is a sequence diagram for explaining a nineteenth scenario of the present embodiment. As shown in FIG. 39, the representative remote UE300A performs measurement (step S502), the base station 100 via the relay UE200A, it transmits the measurement result (step S504, S506). Then, the base station 100 performs decision on the basis of the measurement result (step S508). Then, the base station 100 transmits the decision result to the representative remote UE300A via the relay UE200A (step S510, S512), and transmits the decision result to the normal remote UE300B via the relay UE200B (step S514, S516). Thus, decision may be performed by the base station 100.
[0274]
　Figure 40 is a sequence diagram for explaining the 20th scenario of the present embodiment. As shown in FIG. 40, the representative remote UE300A performs measurement and decision (step S522). Then, the representative remote UE300A, first relay UE200A, the base station 100 to the next, via the relay UE200B the next, and transmits the measurement result to the normal remote UE300B (step S524, S526, S528, S530). Then, the normal remote UE300B performs decision on the basis of the measurement result (step S532). Thus, decision may be performed by both the representative remote UE300A and normal remote UE300B.
[0275]
　<< 5. Applications >>
　according to the disclosed technique is applicable to various products. For example, base station 100 may be implemented as a macro eNB or any type of eNB, such as small eNB (evolved Node B). Small eNB may pico eNB, such as micro eNB or Home (femto) eNB, or a eNB to cover smaller cells than macrocells. Alternatively, the base station 100 may be implemented as a base station for other types, such as NodeB or BTS (Base Transceiver Station). The base station 100 includes a main body (also referred to as a base station device) that controls the wireless communication, one or more RRH placed in a different location from the main body (Remote Radio Head) and may contain. Further, by different types of terminal to be described later to perform a temporary or semi-permanent base station function, may operate as the base station 100.
[0276]
　In addition, for example, the terminal device 200 also 300, a smart phone, a tablet PC (Personal Computer), notebook PC, portable game terminals, such as portable / dongle type mobile router or mobile terminal, such as a digital camera, or a car navigation system it may be implemented as an in-vehicle terminal. The terminal device 200 also 300, may be implemented as M2M (Machine To Machine) (also called MTC (Machine Type Communication) terminal) terminal that performs communications. Further, the terminal device 200 also 300, wireless communication module mounted on these terminals (e.g., an integrated circuit module consists of a single die) may be used.
[0277]
　<5.1. Applications for the base station Example>
　　　(first applied example)
　FIG. 41 is a block diagram showing a first example of a schematic configuration of an eNB of the technology according to the present disclosure may be applied. eNB800 has one or more antennas 810, and the base station apparatus 820. Each antenna 810 and base station apparatus 820 may be connected to each other via a RF cable.
[0278]
　Each antenna 810, a single or multiple antenna elements (e.g., a plurality of antenna elements of MIMO antennas) have, is used to send and receive radio signals by the base station apparatus 820. eNB800 has a plurality of antennas 810 as shown in FIG. 41, a plurality of antennas 810, for example, it may correspond to a plurality of frequency bands eNB800 uses. Although in FIG. 41 shows an example in which ENB800 has a plurality of antennas 810, ENB800 may have a single antenna 810.
[0279]
　The base station apparatus 820 includes a controller 821, a memory 822, a network interface 823 and a wireless communication interface 825.
[0280]
　The controller 821 may be, for example, a CPU DSP, or to operate the various functions of the upper layer of the base station apparatus 820. For example, the controller 821 generates a data packet from the data in the signal processed by the wireless communication interface 825, and transfers the generated packet via the network interface 823. The controller 821, the data from the plurality of baseband processor generates the bundled packets by bundling the generated bundled packets may be transferred. The controller 821, radio resource management (Radio Resource Control), radio bearer control (Radio Bearer Control), mobility management (Mobility Management), executes the control such as the inflow control (Admission Control) or scheduling (Scheduling) Logical it may have a function. Further, the control may be performed in conjunction with the periphery of the eNB or the core network node. Memory 822 includes RAM and ROM, and stores a program executed, and various control data (e.g., terminal list, such as the transmission power data and scheduling data) by the controller 821.
[0281]
　Network interface 823 is a communication interface for connecting the base station apparatus 820 to the core network 824. Controller 821 via the network interface 823 may communicate with the core network node, or other eNB. In that case, the ENB800, the core network node, or other eNB, may be connected to one another by logical interfaces (e.g., S1 interface or X2 interface). Network interface 823 may be a wired communication interface, or a wireless communication interface for wireless backhaul. If the network interface 823 is a wireless communication interface, a network interface 823 may use a higher frequency band than the frequency band used for radio communication by the wireless communication interface 825.
[0282]
　Wireless communication interface 825, LTE supports either a cellular communication system such as (Long Term Evolution) or LTE-Advanced, via the antenna 810 to provide wireless connectivity to the terminal located in the cell of ENB800. Wireless communication interface 825 typically may include such baseband (BB) processor 826 and RF circuit 827. BB processor 826, for example, the encoding / decoding may be performed such as modulation / demodulation and multiplexing / demultiplexing, each layer (e.g., L1, MAC (Medium Access Control), RLC (Radio Link Control) and PDCP (Packet Data Convergence Protocol)) to perform various signal processing. BB processor 826, instead of the controller 821 may include some or all of the logical functions described above. BB processor 826, a memory for storing a communication control program may be a module including a processor and associated circuitry to execute the program, the function of BB processor 826 may be changeable by the update of the program good. Further, the module may be a card or a blade is inserted into the slot of the base station apparatus 820, or may be a chip mounted on said card or the blade. On the other hand, RF circuit 827, a mixer may include such as filters and amplifiers, for transmitting and receiving radio signals via an antenna 810.
[0283]
　Wireless communication interface 825 includes a plurality of BB processor 826 as shown in FIG. 41, a plurality of BB processor 826 may, for example, correspond to a plurality of frequency bands eNB800 uses. The wireless communication interface 825 includes a plurality of RF circuits 827 as shown in FIG. 41, a plurality of RF circuits 827 may correspond for example to a plurality of antenna elements. Although the wireless communication interface 825 in FIG. 41 shows an example including a plurality of BB processor 826 and a plurality of RF circuits 827, a wireless communication interface 825 includes a single BB processor 826 or a single RF circuit 827 But good.
[0284]
　In eNB800 shown in FIG. 41, one or more components (setting unit 151 and / or communication control unit 153) included in the base station 100 described with reference to Figure 2, it is implemented in a wireless communication interface 825 it may be. Alternatively, at least some of these components may be implemented in the controller 821. As an example, ENB800 is part of a wireless communication interface 825 (e.g., BB processor 826) or the whole, and mounted / or module including a controller 821, even if the one or more components in the modules are mounted good. In this case, the module stores (in other words, a program for executing the operation of the one or more components to the processor) processor program for functioning as the one or more components, and the program may be an execution. As another example, a program for causing a processor as the one or more components are installed in ENB800, wireless communication interface 825 (e.g., BB processor 826) also and / or controller 821 executes the program good. As described above, ENB800 as a device comprising the one or more components may be the base station device 820 or the module is provided, a program for causing a processor as the one or more components are provided it may be. The readable recording medium recording the program may be provided.
[0285]
　Further, in eNB800 shown in FIG. 41, the radio communication unit 120 described with reference to Figure 2, wireless communication interface 825 (e.g., RF circuitry 827) may be implemented in. The antenna unit 110 may be implemented in the antenna 810. The network communication unit 130 may be implemented in the controller 821 and / or network interface 823. The storage unit 140 may be implemented in the memory 822.
[0286]
　　　(Second applied example)
　FIG. 42 is a block diagram showing a second exemplary configuration of an eNB of the technology according to the present disclosure may be applied. eNB830 has one or more antennas 840, the base station apparatus 850, and RRH860. Each antenna 840 and RRH860 may be connected to each other via a RF cable. The base station apparatus 850 and RRH860 may be connected to one another by high-speed line such as an optical fiber cable.
[0287]
　Each antenna 840, a single or multiple antenna elements (e.g., a plurality of antenna elements of MIMO antennas) have, is used to send and receive radio signals by RRH860. eNB830 has a plurality of antennas 840 as shown in FIG. 42, a plurality of antennas 840, for example, it may correspond to a plurality of frequency bands eNB830 uses. Although in FIG. 42 shows an example in which ENB830 has a plurality of antennas 840, ENB830 may have a single antenna 840.
[0288]
　The base station apparatus 850 includes a controller 851, a memory 852, a network interface 853, a wireless communication interface 855 and connection interface 857. Controller 851, a memory 852 and a network interface 853 is similar to the controller 821, a memory 822 and a network interface 823 described with reference to FIG. 41.
[0289]
　Wireless communication interface 855 supports any of the cellular communication system such as LTE or LTE-Advanced, via the RRH860 and antenna 840 to provide wireless connectivity to terminals located in a sector corresponding to RRH860. Wireless communication interface 855 typically may include such BB processor 856. BB processor 856, except that it is connected to the RF circuitry 864 of RRH860 through the connection interface 857 is similar to the BB processor 826 described with reference to FIG. 41. Wireless communication interface 855 includes a plurality of BB processor 856 as shown in FIG. 42, a plurality of BB processor 856 may, for example, correspond to a plurality of frequency bands eNB830 uses. Although the wireless communication interface 855 in FIG. 42 shows an example including a plurality of BB processor 856, a wireless communication interface 855 may comprise a single BB processor 856.
[0290]
　Connection interface 857 is an interface for base station apparatus 850 (the radio communication interface 855) connected to the RRH860. Connection interface 857 may be a communication module for communicating with the high-speed line which connects the base station apparatus 850 (wireless communication interface 855) and RRH860.
[0291]
　Further, RRH860 comprises a connection interface 861 and a wireless communication interface 863.
[0292]
　Connection interface 861 is an interface for connecting to the base station apparatus 850 RRH860 (wireless communication interface 863). Connection interface 861 may be a communication module for communicating with the high-speed line.
[0293]
　Wireless communication interface 863 sends and receives radio signals via an antenna 840. Wireless communication interface 863 may typically include an RF circuit 864. RF circuit 864, a mixer may include such as filters and amplifiers, for transmitting and receiving radio signals via an antenna 840. Wireless communication interface 863 includes a plurality of RF circuits 864 as shown in FIG. 42, a plurality of RF circuits 864 may correspond for example to a plurality of antenna elements. Although the wireless communication interface 863 in FIG. 42 shows an example including a plurality of RF circuits 864, a wireless communication interface 863 may comprise a single RF circuit 864.
[0294]
　In eNB830 shown in FIG. 42, one or more components (setting unit 151 and / or communication control unit 153) included in the base station 100 described with reference to Figure 2, wireless communication interface 855 and / or wireless it may be implemented in the communication interface 863. Alternatively, at least some of these components may be implemented in the controller 851. As an example, ENB830 is part of a wireless communication interface 855 (e.g., BB processor 856) or the whole, and mounted / or module including a controller 851, even if the one or more components in the modules are mounted good. In this case, the module stores (in other words, a program for executing the operation of the one or more components to the processor) processor program for functioning as the one or more components, and the program may be an execution. As another example, a program for causing a processor as the one or more components are installed in ENB830, wireless communication interface 855 (e.g., BB processor 856) also and / or controller 851 executes the program good. As described above, ENB830 as a device comprising the one or more components may be the base station device 850 or the module is provided, a program for causing a processor as the one or more components are provided it may be. The readable recording medium recording the program may be provided.
[0295]
　Further, in eNB830 shown in FIG. 42, for example, wireless communication unit 120 described with reference to Figure 2, wireless communication interface 863 (e.g., RF circuitry 864) may be implemented in. The antenna unit 110 may be implemented in the antenna 840. The network communication unit 130 may be implemented in the controller 851 and / or network interface 853. The storage unit 140 may be implemented in the memory 852.
[0296]
　<5.2. Applications for the terminal device>
　　　(first applied example)
　FIG. 43 is a block diagram showing an example of a schematic configuration of the smartphone 900 technology according to the present disclosure may be applied. Smartphone 900, processor 901, memory 902, storage 903, an external connection interface 904, a camera 906, a sensor 907, a microphone 908, an input device 909, display device 910, a speaker 911, a wireless communication interface 912,1 one or more of the antenna switch 915 comprises one or more antennas 916, bus 917, battery 918 and the auxiliary controller 919.
[0297]
　The processor 901 may be, for example, a CPU or SoC (System on Chip), which controls the functions of the application layer and other layers of the smartphone 900. Memory 902 includes RAM and ROM, for storing programs and data executed by the processor 901. Storage 903 may include a storage medium such as a semiconductor memory or a hard disk. External connection interface 904 is an interface for connecting an external device such as a memory card or USB (Universal Serial Bus) device to a smart phone 900.
[0298]
　The camera 906 is, for example, an image pickup element such as CCD (Charge Coupled Device) or CMOS (Complementary Metal Oxide Semiconductor), and generates a captured image. Sensor 907 may include, for example, the positioning sensor, a gyro sensor, the sensor group, such as a geomagnetic sensor and an acceleration sensor. The microphone 908 converts a voice inputted to the smartphone 900 to the audio signal. Input device 909, for example, a touch sensor, a keypad for detecting a touch to the screen of the display device 910, a keyboard includes a button or switch, and accepts an operation or information input from a user. Display device 910 has a screen such as a liquid crystal display (LCD) or organic light emitting diode (OLED) display, and displays the output image of the smartphone 900. Speaker 911 converts the audio signal output from the smart phone 900 to the audio.
[0299]
　Wireless communication interface 912 supports any of the cellular communication system such as LTE or LTE-Advanced, which executes wireless communication. Wireless communication interface 912 typically may include such BB processor 913 and RF circuit 914. BB processor 913, for example, the encoding / decoding may be performed such as modulation / demodulation and multiplexing / demultiplexing, execute various signal processing for wireless communication. On the other hand, RF circuit 914, a mixer may include such as filters and amplifiers, for transmitting and receiving radio signals via an antenna 916. Wireless communication interface 912 may be a one-chip module that integrates BB processor 913 and RF circuit 914. Wireless communication interface 912 may include a plurality of BB processor 913 and a plurality of RF circuits 914 as shown in FIG. 43. Although the wireless communication interface 912 in FIG. 43 shows an example including a plurality of BB processor 913 and a plurality of RF circuits 914, a wireless communication interface 912 includes a single BB processor 913 or a single RF circuit 914 But good.
[0300]
　Further, the wireless communication interface 912, in addition to cellular communication systems, short-range wireless communication system, other types of wireless communication systems, such as the proximity wireless communication system or wireless LAN (Local Area Network) system may support, in this case, it may include a BB processor 913 and RF circuit 914 for each wireless communication system.
[0301]
　Each of the antenna switch 915, a plurality of circuits included in the wireless communication interface 912 (e.g., different circuits for wireless communication system) switches the connection destination of the antenna 916 between.
[0302]
　Each antenna 916, a single or multiple antenna elements (e.g., a plurality of antenna elements of MIMO antennas) have, is used to send and receive radio signals by the wireless communication interface 912. Smartphone 900 may have a plurality of antennas 916 as shown in FIG. 43. Although in FIG. 43 shows an example where the smartphone 900 has a plurality of antennas 916, the smartphone 900 may have a single antenna 916.
[0303]
　Moreover, the smartphone 900 may comprise an antenna 916 for each wireless communication system. In that case, the antenna switch 915 may be omitted from the configuration of the smartphone 900.
[0304]
　Bus 917, a processor 901, memory 902, storage 903, an external connection interface 904, a camera 906, a sensor 907, a microphone 908, an input device 909, display device 910, a speaker 911, connects the wireless communication interface 912 and the auxiliary controller 919 to each other . Battery 918 via a power supply line partially indicated by broken lines in the figure, supplies power to each block of the smartphone 900 shown in FIG. 43. Auxiliary Controller 919, for example, in the sleep mode, to operate the required minimum functionality of the smartphone 900.
[0305]
　In the smartphone 900 shown in FIG. 43, one or more components (communication control unit 241) included in the relay UE200 described with reference to FIG. 3, or included in the remote UE300 described with reference to FIG. 4 1 One or more components (measurement processing unit 341 and / or communication control unit 343) may be implemented in a wireless communication interface 912. Alternatively, at least some of these components may be implemented in the processor 901 or the auxiliary controller 919. As an example, a smart phone 900, a portion of the wireless communication interface 912 (e.g., BB processor 913) or the whole, equipped with a module containing the processor 901, and / or the auxiliary controller 919, the one or more components in the module There may be implemented. In this case, the module stores (in other words, a program for executing the operation of the one or more components to the processor) processor program for functioning as the one or more components, and the program may be an execution. As another example, a program for causing a processor as the one or more components are installed on the smartphone 900, a wireless communication interface 912 (e.g., BB processor 913), a processor 901, and / or auxiliary controller 919 is the program may be an execution. As described above, may be provided smart phone 900 or the module is a device provided with the one or more components, the program may be provided for causing a processor as the one or more components. The readable recording medium recording the program may be provided.
[0306]
　Further, in a smart phone 900 shown in FIG. 43, for example, wireless communication unit 320 described with reference to wireless communication unit 220 or FIG. 4 has been described with reference to FIG. 3, the radio communication interface 912 (e.g., RF circuitry 914 it may be implemented in). The antenna portion 210 or the antenna portion 310 may be implemented in the antenna 916. The storage unit 230 or the storage unit 330 may be implemented in the memory 902.
[0307]
　　　(Second applied example)
　FIG. 44 is a block diagram showing an example of a schematic configuration of the car navigation device 920 technology according to the present disclosure may be applied. Car navigation device 920, processor 921, memory 922, GPS (Global Positioning System) module 924, sensor 925, data interface 926, content player 927, a storage medium interface 928, an input device 929, display device 930, a speaker 931, a wireless communication an interface 933,1 one or more of the antenna switch 936,1 or more antennas 937 and battery 938.
[0308]
　The processor 921 may be, for example, a CPU or SoC, controls the navigation functions and other functions of the car navigation device 920. Memory 922 includes RAM and ROM, for storing programs and data executed by the processor 921.
[0309]
　GPS module 924 uses the GPS signal received from the GPS satellites, measures the position of the car navigation device 920 (e.g., latitude, longitude and altitude). Sensor 925 is, for example, a gyro sensor may include sensors such as a geomagnetic sensor, and pressure sensor. Data interface 926 is connected to, for example, vehicle network 941 through a terminal (not shown), obtains the data generated by the vehicle, such as vehicle speed data.
[0310]
　Content player 927, storage medium to be inserted into the storage medium interface 928 (e.g., CD or DVD) to reproduce the content stored in the. Input device 929 may, for example, a touch sensor for detecting a touch on the screen of the display device 930 includes a button or switch, and accepts an operation or information input from a user. Display device 930 has a screen such as an LCD or OLED display, and displays an image of content navigation function or reproducing. Speaker 931 outputs sound of content navigation function or reproducing.
[0311]
　Wireless communication interface 933 supports any of the cellular communication system such as LTE or LTE-Advanced, which executes wireless communication. Wireless communication interface 933 typically may include such BB processor 934 and RF circuit 935. BB processor 934, for example, the encoding / decoding may be performed such as modulation / demodulation and multiplexing / demultiplexing, execute various signal processing for wireless communication. On the other hand, RF circuit 935, a mixer may include such as filters and amplifiers, for transmitting and receiving radio signals via an antenna 937. Wireless communication interface 933 may be a one-chip module that integrates BB processor 934 and RF circuit 935. Wireless communication interface 933 may include a plurality of BB processor 934 and a plurality of RF circuits 935 as shown in FIG. 44. Although the wireless communication interface 933 in FIG. 44 shows an example including a plurality of BB processor 934 and a plurality of RF circuits 935, a wireless communication interface 933 includes a single BB processor 934 or a single RF circuit 935 But good.
[0312]
　Further, the wireless communication interface 933, in addition to cellular communication systems, short-range wireless communication system may support other types of wireless communication systems, such as the proximity wireless communication system or wireless LAN system, in that case, the radio it may include a BB processor 934 and RF circuit 935 for each communication mode.
[0313]
　Each of the antenna switch 936, a plurality of circuits included in the wireless communication interface 933 (e.g., different circuits for wireless communication system) switches the connection destination of the antenna 937 between.
[0314]
　Each antenna 937, a single or multiple antenna elements (e.g., a plurality of antenna elements of MIMO antennas) have, is used to send and receive radio signals by the wireless communication interface 933. Car navigation device 920 may have a plurality of antennas 937 as shown in FIG. 44. Although the car navigation system 920 in FIG. 44 shows an example having a plurality of antennas 937, car navigation device 920 may have a single antenna 937.
[0315]
　Furthermore, car navigation device 920 may comprise an antenna 937 for each wireless communication system. In that case, the antenna switch 936 may be omitted from the configuration of the car navigation device 920.
[0316]
　Battery 938, via a feed line partially indicated by broken lines in the figure, supplies power to each block of the car navigation device 920 shown in FIG. 44. Further, the battery 938 accumulates electric power fed from the vehicle side.
[0317]
　In car navigation device 920 shown in FIG. 44, one or more components (communication control unit 241) included in the relay UE200 described with reference to FIG. 3, or included in a remote UE300 described with reference to FIG. 4 one or more components (measurement processing unit 341 and / or communication control unit 343) may be implemented in a wireless communication interface 933. Alternatively, at least some of these components may be implemented in the processor 921. As an example, a car navigation device 920, a portion of the wireless communication interface 933 (e.g., BB processor 934) equipped with a module that contains the or all and / or processor 921, the one or more components are mounted in the module it may be. In this case, the module stores (in other words, a program for executing the operation of the one or more components to the processor) processor program for functioning as the one or more components, and the program may be an execution. As another example, a program for causing a processor as the one or more components are installed on the car navigation device 920, a wireless communication interface 933 (e.g., BB processor 934) and / or processor 921 executing the program it may be. As described above, it may be a car navigation device 920 or the module is provided as an apparatus provided with the one or more components, be provided a program for causing a processor as the one or more components good. The readable recording medium recording the program may be provided.
[0318]
　Further, the car navigation apparatus 920 shown in FIG. 44, for example, wireless communication unit 320 described with reference to wireless communication unit 220 or FIG. 4 has been described with reference to FIG. 3, the radio communication interface 933 (e.g., RF it may be implemented in circuit 935). The antenna portion 210 or the antenna portion 310 may be implemented in the antenna 937. The storage unit 230 or the storage unit 330 may be implemented in the memory 922.
[0319]
　Further, the technology according to the present disclosure includes one or more blocks of the car navigation device 920 described above, the vehicle network 941 may be implemented as an in-vehicle system (or vehicle) 940 that includes a vehicle-side module 942. Vehicle module 942, the vehicle speed, generates a vehicle data such as engine speed or failure information, and outputs the generated data to the vehicle network 941.
[0320]
　<< 6. Conclusion >>
　above with reference to FIGS. 1 to 44 have been described in detail an embodiment of the present disclosure. As explained above, according to the first embodiment, the remote UE300, based on the association information for associating the relay UE200 and itself, selecting a link to measurement. Since measurement link is limited, it is possible to reduce the measurement times as compared to the case is not limited, as a result, the power consumption of the remote UE300 is suppressed. Especially, the remote UE300 is by measurement of the link with the association relationship remote UE300 preferentially, it is possible to continue the communication via the trusted relationship Relay UE200 with less power consumption.
[0321]
　Further, in an association related relay UE 200 and Association irrelevant relay UE 200, different resources for discovery or communication is set, therefore, the remote UE300 is when measurement links with the association relationship remote UE300 to become better if the measurement in the limited resources, it is possible to suppress the power consumption.
[0322]
　Further, according to the second embodiment, a remote UE 300 may close if there is another remote UE 300, other generates shared information based on the measurement result by performing measurement when it is selected as a representative remote UE 300 shared with, if not selected as the representative receives the sharing of shared information from other remote UE300 selected as representative. Thus, it is possible to reduce the measurement times across a plurality of remote UE300 located close, it is possible to suppress the power consumption of the entire accordingly.
[0323]
　Having described in detail preferred embodiments of the present disclosure with reference to the accompanying drawings, the technical scope of the present disclosure is not limited to such an example. It would be appreciated by those skilled in the art of the present disclosure, within the scope of the technical idea described in the claims, it is clear that to cover various modifications, combinations, for these It is also understood to belong to the technical scope of the present disclosure.
[0324]
　For example, the first and second embodiments of the present disclosure can be combined as appropriate. For example, the representative remote UE 300 is a link between itself and the association relationship Relay UE200 preferentially to measurement may share measurement results to other remote UE 300.
[0325]
　Further, the processing in the present specification has been described with reference to flowcharts and sequence diagrams may not be performed in the order always shown. Some process steps may be executed in parallel. Also may be additional processing steps employed, some of the processing steps may be omitted.
[0326]
　The effects described herein are not limiting be those that only illustrative or exemplary. In other words, the technology according to the present disclosure, together with the above effects, or instead of the above effects, can exhibit the apparent other effects to those skilled in the art from the description herein.
[0327]
　Also within the scope of the present disclosure the following configurations.
(1)
　A communicable remote communication device with a base station via a relay of communication by movably arranged relay communication equipment,
　based on the association information between the first relay communication equipment associates with said remote communication device Te, the control unit, which selects the link to the measurement
remote communication device comprising a.
(2)
　the control unit, the link between the first relay communication equipment, for measurement preferentially selected over other links, remote communication apparatus according to (1).
(3)
　wherein, if you are connected to the first relay communication device skips the measurement of other links, the remote communication apparatus according to (2).
(4)
　wherein, if you are connected to the first relay communication device, based on the presence or absence of a measurement request quality or other links of the link between the first relay communication equipment, the other selecting whether to skip the measurement of the link, the remote communication apparatus according to (3).
(5)
　between the first relay communication device and the second relay communication device other than the first relay communication equipment, different resources for discovery or communication is set, the (1) to (4) remote communication apparatus according to any one of.
(6)
　It said resource is a resource pool or resource blocks, the remote communication device according to (5).
(7)
　the resource is dynamically set by the base station, the remote communication device according to (5) or (6).
(8)
　measurement results, and based on the association information, the link destination is determined, the (1) remote communication apparatus according to any one of (1) to (7).
(9)
　the first link with the relay communication equipment, preferentially determined as a link of said destination, a remote communication apparatus according to (8).
(10)
　link with the base station, the first priority second only to link with the relay communication equipment is determined as a link of said destination, a remote communication apparatus according to (9).
(11)
　link with the second relay communication device other than the first relay communication equipment, at priority second only to link with the base station, is determined as a link of said destination, the (10) remote communication apparatus as claimed.
(12)
　a movably arranged relay communication apparatus for relaying communication between the base station and the remote communication device,
　not associated with the signal to the remote communication device associated with the relay communication equipment wherein a signal to the remote communication device, control unit, to be transmitted by using different resources
relay communication device comprising a.
(13)
　A base station capable of communicating with a remote communication device via the relay of communication by movably arranged relay communication equipment,
　has been associated with the associated relay communication equipment and the remote communication device in the absence the relay communication equipment and the remote communication device, control unit, to set different resources
base station comprising a.
(14)
　A communicable remote communication device with a base station via a relay of communication by movably arranged relay communication equipment,
　includes a control unit for controlling the measurement process,
　the control unit, said remote communication If another remote communication device near devices are present, when it is selected as the representative to share with the other remote communication device to generate shared information based on the measurement result by performing measurement, it was not selected as the representative when it receives the sharing of the shared information from the other remote communication devices that are selected as the representative, the remote communication device.
(15)
　the representative, the are selected based on the capability of remote communication device and the other remote communication devices, a remote communication apparatus according to (14).
(16)
　the representative, the are selected based on the geographic location information of the remote communication device and the other remote communication devices, a remote communication apparatus according to (14) or (15).
(17)
　The representative, the are selected based on relative position information of the remote communication device and the other remote communication device, wherein (14) remote communication apparatus according to any one of - (16).
(18)
　the representative, the remote communication device and the other remote communication device is selected based on link quality between the base station or relay communication equipment, the (14) to any one of (17) remote communication apparatus according to.
(19)
　the representative, the are selected based on the security requirements of the remote communication device and the other remote communication device, wherein (14) remote communication apparatus according to any one of - (18).
(20)
　the representative, the are selected based on the association information of the remote communication device and the other remote communication device, wherein (14) remote communication apparatus according to any one of - (19).
(21)
　when said selected remote communication device as a representative satisfies a predetermined condition, the selection of the representative is released,
　the predetermined condition, low battery, the withdrawal from the timer expiration or cell containing at least one, the (14) remote communication apparatus according to any one of - (20).
(22)
　the shared information, the measurement result comprises at least one of the measurement determination result of the destination link based on a result, or the shows the state of the selected remote communication device as a representative information, said (14) remote communication apparatus according to any one of - (21).
(23)
　the shared information, side links only, the uplink and downlink, or side links is shared with the uplink and downlink, the (14) to according to any one of (22) remote communication device.
(24)
　A method performed by a communicable remote communication device with a base station via a relay of communication by movably arranged relay communication equipment,
　the first relay communication device and said remote communication device based on the association information, you, to select the link to measurement associating
method comprising.
(25)
　the computer can communicate remote communication device with a base station via a relay of communication by movably arranged relay communication equipment,
　based on the association information between the first relay communication equipment associates with said remote communication device Te, the control unit, to select the link to measurement
recording medium recording a program for functioning as a.
(26)
　A method performed by a base station and a movably arranged relay communication apparatus for relaying communication between the remote communication device,
　a signal to the remote communication device associated with the relay communication equipment and and a signal to the not associated the remote communication device, it, to transmit using different resources
methods including.
(27)
　The computer movably arranged relay communication apparatus for relaying communication between the base station and the remote communication device,
　wherein the remote communications that are not associated with a signal to the relay communication equipment and the associated said remote communication device and a signal to the device, the control unit, to be transmitted by using different resources
recording medium recording a program for functioning as a.
(28)
　A method performed by a base station capable of communicating with a remote communication device via the relay of communication by movably arranged relay communication equipment,
　the associated relay communication equipment and the remote communication device and in the association is non the relay communication equipment and the remote communication device, setting a different resource,
the method comprising.
(29)
　the remote communication device and a communicable base station computer via the relay of communication by movably arranged relay communication equipment,
　has been associated with the associated relay communication equipment and the remote communication device not the relay by the communication device and the remote communication device, the control unit for setting a different resource,
the recording medium recording program for functioning as a.
(30)
　A method performed by a communicable remote communication device with a base station via a relay of communication by movably arranged relay communication equipment,
　the method comprising controlling the measurement process,
　Said controlling the measurement process, the case where other remote communication device close to the remote communication device is present, if it is selected to generate shared information based on the measurement result by performing measurement with said other remote Representative It shared with the communication apparatus, if none was selected as a representative includes receiving a share of the shared information from the other remote communication devices that are selected as the representative process.
(31)
　the computer can communicate remote communication device with a base station via a relay of communication by movably arranged relay communication equipment,
　to function as a control unit for controlling the measurement process,
　the control unit, the remote If another remote communication device close to the communication device is present, if it is selected to generate shared information based on the measurement result by performing measurement shared with the other remote communication device as a representative, not selected as the representative If the receive shared the shared information from the other remote communication devices that are selected as a representative, a recording medium recording a program.
DESCRIPTION OF SYMBOLS
[0328]
　1 system
　100 base station
　101 cell
　110 antenna unit
　120 radio communication unit
　130 network communication unit
　140 storage unit
　150 control unit
　151 setting unit
　153 communication control unit
　200 terminal apparatus, a relay
　UE 210 antenna unit
　220 radio communication unit
　230 storage unit
　240 control unit
　241 communication control unit
　300 terminal apparatus, a remote
　UE 310 antenna unit
　320 radio communication unit
　330 storage unit
　340 control unit
　341 measuring unit
　343 communication control unit

The scope of the claims

[Requested item 1]A communicable remote communication device with a base station via a relay of communication by movably arranged relay communication equipment,
　based on the association information between the first relay communication equipment associates with said remote communication device, measurement control unit for selecting a link to,
remote communications device comprising a.
[Requested item 2]
　Wherein the control unit, the link between the first relay communication equipment, for measurement preferentially selected over other links, remote communication apparatus according to claim 1.
[Requested item 3]
　Wherein, if you are connected to the first relay communication device skips the measurement of other links, the remote communication apparatus according to claim 2.
[Requested item 4]
　Wherein, when said connecting to the first relay communication device, based on the presence or absence of a measurement request quality or other links of the link between the first relay communication equipment, measurement of the other links to select whether to skip, remote communication apparatus according to claim 3.
[Requested item 5]
　In the second relay communication devices other than said first relay communication device first relay communication equipment, different resources for discovery or communication is set, the remote communication apparatus according to claim 1.
[Requested item 6]
　It said resource is a resource pool or resource blocks, the remote communication apparatus according to claim 5.
[Requested item 7]
　The resources are dynamically set by the base station, the remote communication apparatus according to claim 5.
[Requested item 8]
　Measurement results, and based on the association information, the link destination is decided, the remote communication device according to claim 1.
[Requested item 9]
　The first link with the relay communication equipment, is preferentially determined as a link of said destination, a remote communication apparatus of claim 8.
[Requested item 10]
　The link with the base station, at priority second only to link with the first relay communication equipment, the is determined as the destination of the link, the remote communication apparatus according to claim 9.
[Requested item 11]
　Link with the second relay communication device other than the first relay communication equipment, at priority second only to link with the base station, the is determined as the destination of the link, remote communication according to claim 10 apparatus.
[Requested item 12]
　Communication with the base station and the remote communication device a movably arranged relay communication device that relays,
　the remote communication that is not associated with the signal to that associated with the relay communication equipment wherein the remote communication device and a signal to the device, the control unit, to be transmitted by using different resources
relay communication device comprising a.
[Requested item 13]
　Via the relay of communication by movably arranged relay communication device capable of communicating base station and the remote communication device,
　wherein not associated with the associated relay communication equipment and the remote communication device relays in the communication apparatus and the remote communication device, control unit, to set different resources
base station comprising a.
[Requested item 14]
　A communicable remote communication device with a base station via a relay of communication by movably arranged relay communication equipment,
　includes a control unit for controlling the measurement process,
　the control unit may close the remote communication device If there are other remote communication device, when it is selected to generate shared information based on the measurement result by performing measurement shared with the other remote communication device as a representative, if none was selected as a representative represented receiving a sharing of the shared information from the other remote communication devices selected as the remote communication device.
[Requested item 15]
　The representative, the are selected based on the capability of remote communication device and the other remote communication devices, a remote communication apparatus according to claim 14.
[Requested item 16]
　The representative, the are selected based on the geographic location information of the remote communication device and the other remote communication devices, a remote communication apparatus according to claim 14.
[Requested item 17]
　The representative, the are selected based on relative position information of the remote communication device and the other remote communication devices, a remote communication apparatus according to claim 14.
[Requested item 18]
　The representative, the remote communication device and the other remote communication device is selected based on link quality between the base station or relay communication equipment, the remote communication apparatus according to claim 14.
[Requested item 19]
　The representative, the are selected based on the security requirements of the remote communication device and the other remote communication devices, a remote communication apparatus according to claim 14.
[Requested item 20]
　The representative, the are selected based on the association information of the remote communication device and the other remote communication devices, a remote communication apparatus according to claim 14.
[Requested item 21]
　If the selected remote communication device as a representative satisfies a predetermined condition, the selection of the representative is released,
　the predetermined condition, low battery, at least one of withdrawal from the timer expiration or cell including, remote communication apparatus according to claim 14.
[Requested item 22]
　The shared information, the measurement result, the determination result of the destination link based on the measurement result, or at least one of the information indicating the state of the selected remote communication device as a representative, the remote according to claim 14 Communication device.
[Requested item 23]
　The shared information, side links only, the uplink and downlink, or side links is shared with the uplink and downlink, the remote communication apparatus according to claim 14.
[Requested item 24]
　A method performed by a communicable remote communication device with a base station via a relay of communication by movably arranged relay communication equipment,
　the association information between the first relay communication equipment associates with said remote communication device and, selecting a link to measurement, based on
a method comprising the.
[Requested item 25]
　The computer can communicate remote communication device with a base station via a relay of communication by movably arranged relay communication equipment,
　based on the association information between the first relay communication equipment associates with said remote communication device, measurement control unit for selecting a link, to
a recording medium recording a program for functioning as a.
[Requested item 26]
　A method performed by a movably arranged relay communication apparatus for relaying communication between the base station and the remote communication device,
　associated with the signal to the remote communication device associated with the relay communication equipment a signal to the remote communication device is not, it, to transmit using different resources
methods including.
[Requested item 27]
　The computer movably arranged relay communication apparatus for relaying communication between the base station and the remote communication device,
　wherein the remote communications that are not associated with a signal to the relay communication equipment and the associated said remote communication device and a signal to the device, the control unit, to be transmitted by using different resources
recording medium recording a program for functioning as a.
[Requested item 28]
　Via the relay of communication by movably arranged relay communication device a method performed by a communicable base station and the remote communication device,
　correlation between the relay communication equipment and the remote communication device associated is between the relay communication equipment and the remote communication device is not, it, to set different resources
methods including.
[Requested item 29]
　The remote communication device and a communicable base station computer via the relay of communication by movably arranged relay communication equipment,
　not associated with the associated relay communication equipment and the remote communication device the relay in the communication apparatus and the remote communication device, control unit, to set different resources
recording medium recording a program for functioning as a.
[Requested item 30]
　A method performed by a communicable remote communication device with a base station via a relay of communication by movably arranged relay communication equipment,
　the method comprising controlling the measurement process,
　controlling the measurement process , the case where other remote communication device close to the remote communication device is present, if it is selected to generate shared information based on the measurement result by performing measurement shared with the other remote communication device as a representative, the representative If that is not selected as comprising from selected the other remote communication device as a representative receiving the sharing of the shared information, methods.
[Requested item 31]
　The computer can communicate remote communication device with a base station via a relay of communication by movably arranged relay communication equipment,
　to function as a control unit for controlling the measurement process,
　the control unit, the remote communication device close if there are other remote communication device, when it is selected to generate shared information based on the measurement result by performing measurement shared with the other remote communication device as a representative, if that is not selected as representative receiving a sharing of the shared information from the other remote communication devices that are selected as representative, a recording medium recording the program.