Title of invention: Base station device, terminal device and method
Technical field
[0001]
　The present disclosure relates to a base station device, a terminal device and a method.
Background technology
[0002]
　Wireless access method and wireless network for cellular mobile communication (hereinafter, "Long Term Evolution (LTE)", "LTE-Advanced (LTE-A)", "LTE-Advanced Pro (LTE-A Pro)", "New Radio ( NR)”, “New Radio Access Technology (NRAT)”, “5G”, “Evolved Universal Terrestrial Radio Access (EUTRA)”, or “Further EUTRA (FEUTRA)”) is a third generation partnership project (3rd Generation). Partnership Project: 3GPP). In the following description, LTE includes LTE-A, LTE-A Pro, and EUTRA, and NR includes NRAT and FEUTRA. In LTE, a base station device (base station) is an eNodeB (evolved NodeB), in NR, a base station device (base station) is a gNodeB, and in LTE and NR, a terminal device (mobile station, mobile station device, terminal) is a UE (User Equipment). Also called. LTE and NR are cellular communication systems in which a plurality of areas covered by a base station device are arranged in a cell shape. A single base station device may manage a plurality of cells.
[0003]
　NR is a next-generation radio access scheme for LTE, which is a RAT (Radio Access Technology) different from LTE. NR is an access technology that can support various use cases including eMBB (Enhanced mobile broadband), mMTC (Massive machine type communications), and URLLC (Ultra reliable and low latency communications). The NR is examined aiming at a technical framework corresponding to usage scenarios, requirements, and placement scenarios in those use cases.
[0004]
　In the unlicensed band and the license shared band, the operation of the wireless access system based on the cellular communication is being studied. Coexistence with other nodes and wireless systems in such unlicensed bands is important, and for wireless access methods such as LTE and NR, LBT (Listen Before Talk) that senses a channel before transmission. And features such as discontinuous transmission are required. Non-Patent Document 1 discloses details of a radio access method based on NR in an unlicensed band. The unlicensed bands are, for example, 2.4 GHz band, 5 GHz band, and 6 GHz band. The license shared band is, for example, the 3.5 GHz band or the 37 GHz band.
[0005]
　Generally, in a spectrum shared by different operators, such as an unlicensed band and a license shared band, transmission is performed according to a concept called LBT (Listen before talk) in order to maintain fairness of transmission opportunities. An operator is a telecommunications carrier that has a network for mobile communication and provides mobile communication services. According to the LBT, the transmitting device performs carrier sensing before transmission, confirms that the channel is idle, acquires the channel access right, and then transmits. From the viewpoint of channel fairness, a transmitting device often reserves a channel when data to be transmitted occurs and releases the channel after transmission for a certain period of time.
Prior art documents
Non-patent literature
[0006]
Non-Patent Document 1: RP-172021, “Study on NR-based Access to Unlicensed Spectrum,” 3GPP TSG RAN Meeting #77, Sapporo, Japan, September 11-14, 2017.
Summary of the invention
Problems to be Solved by the Invention
[0007]
　When a plurality of base station devices operated by different operators operate independently and share radio resources (frequency resources and time resources), it is difficult to properly share frequencies in the LBT framework described above. Can be.
[0008]
　Therefore, a mechanism is provided in which a plurality of base station devices operated by different operators can cooperate to share a radio resource.
Means for solving the problem
[0009]
　According to the present disclosure, another base station device operated by a second operator, which is a base station device and is different from the first operator who operates the base station device, includes the first operator and the first operator. There is provided a base station apparatus comprising: a control unit that transmits first setting information of a first guaranteed resource that can be preferentially used by the base station apparatus among radio resources that can be shared with two operators. It
[0010]
　Further, according to the present disclosure, a base station apparatus operated by the first operator using a radio resource that can be shared between the first operator and a second operator different from the first operator. And a control unit that communicates with the base station apparatus and reports the measurement result of the signal from another base station apparatus operated by the second operator to the base station apparatus.
[0011]
　Further, according to the present disclosure, the method executed by the base station apparatus, wherein the base station apparatus is operated by a second operator different from the first operator operating the base station apparatus, Transmitting first setting information of a first guaranteed resource that can be preferentially used by the base station device among radio resources that can be shared between the first operator and the second operator. A method is provided.
Effect of the invention
[0012]
　As described above, according to the present disclosure, a mechanism is provided in which a plurality of base station devices operated by different operators can share a radio resource while cooperating with each other. Note that the above effects are not necessarily limited, and in addition to or in place of the above effects, any of the effects shown in this specification, or other effects that can be grasped from this specification. May be played.
Brief description of the drawings
[0013]
FIG. 1 is a diagram showing an example of an overall configuration of a system according to an embodiment of the present disclosure.
FIG. 2 is a diagram showing an example of a frame configuration for self-contained transmission in the present embodiment.
FIG. 3 is a block diagram showing an example of a configuration of a base station device according to this embodiment.
FIG. 4 is a block diagram showing an example of a configuration of a terminal device according to the present embodiment.
FIG. 5 is a diagram for explaining release of guaranteed resources according to the present embodiment.
FIG. 6 is a diagram for explaining setting of guaranteed resources according to the present embodiment.
FIG. 7 is a sequence diagram illustrating an example of the flow of a static guaranteed resource setting process executed in the system according to the present embodiment.
FIG. 8 is a sequence diagram illustrating an example of a flow of a dynamic guaranteed resource setting process executed in the system according to the present embodiment.
FIG. 9 is a sequence diagram illustrating an example of a flow of a guaranteed resource setting process based on a measurement report executed in the system according to the present embodiment.
FIG. 10 is a block diagram showing a first example of a schematic configuration of an eNB.
FIG. 11 is a block diagram showing a second example of a schematic configuration of an eNB.
FIG. 12 is a block diagram showing an example of a schematic configuration of a smartphone.
FIG. 13 is a block diagram showing an example of a schematic configuration of a car navigation device.
MODE FOR CARRYING OUT THE INVENTION
[0014]
　Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the present specification and the drawings, constituent elements having substantially the same functional configuration are designated by the same reference numerals, and a duplicate description will be omitted.
[0015]
　The description will be given in the following order.
　　1. Introduction
　　2. Configuration example
　　3. Technical features
　　4. Application example
　　5. Summary
[0016]
　<<1. Introduction >>>
　<1.1. System Configuration Example>
　FIG. 1 is a diagram showing an example of the overall configuration of a system 1 according to an embodiment of the present disclosure. As illustrated in FIG. 1, the system 1 includes a base station device 100 (100A and 100B), a terminal device 200 (200A and 200B), a core network (Core Network) 20, and a PDN (Packet Data Network) 30.
[0017]
　The base station device 100 operates the cell 11 (11A or 11B) and provides a wireless service to one or more terminal devices located inside the cell 11. For example, the base station device 100A provides a wireless service to the terminal device 200A, and the base station device 100B provides a wireless service to the terminal device 200B. The cell 11 can be operated according to an arbitrary wireless communication system such as LTE or NR (New Radio). The base station device 100 is connected to the core network 20. The core network 20 is connected to the PDN 30.
[0018]
　The core network 20 may include an MME (Mobility Management Entity), an S-GW (Serving gateway), a P-GW (PDN gateway), a PCRF (Policy and Charging Rule Function), and an HSS (Home Subscriber Server). Alternatively, the core network 20 may include NR entities having similar functions. The MME is a control node that handles signals on the control plane, and manages the moving state of the terminal device. The S-GW is a control node that handles user plane signals, and is a gateway device that switches a user data transfer path. The P-GW is a control node that handles user plane signals and is a gateway device that serves as a connection point between the core network 20 and the PDN 30. The PCRF is a control node that controls policies such as QoS (Quality of Service) for the bearer and charging. The HSS is a control node that handles subscriber data and performs service control.
[0019]
　The terminal device 200 wirelessly communicates with the base station device 100 under the control of the base station device 100. The terminal device 200 may be a so-called user terminal (User Equipment: UE). For example, the terminal device 200 transmits an uplink signal to the base station device 100 and receives a downlink signal from the base station device 100.
[0020]
　In particular, in this embodiment, the base station devices 100A and 100B are operated by different operators. For example, the base station device 100A is operated by the operator A, and the base station device 100B is operated by the operator B. Then, the base station devices 100A and 100B share wireless resources that can be shared between operators who operate the base station devices 100A and 100B, and provide wireless communication services.
[0021]
　<1.2. Technical Problem>
　As described above, when a plurality of base station devices operated by different operators operate independently and share a frequency, it is difficult to properly share the frequency in the above LBT framework. Can be.
[0022]
　Specifically, when a plurality of base station devices operated by different operators operate independently and share a frequency, use of radio resources is not guaranteed until the LBT is completed. Therefore, in an environment where the channel (that is, radio resource) is congested, it takes time to complete the LBT and secure the channel. Therefore, there is a possibility that the QoS (Quality Of Service) will not be satisfied, especially the delay requirement will not be satisfied.
[0023]
　As a measure for satisfying the QoS (especially, the delay request), it is possible to transmit dummy information in advance to secure a channel. When such a measure is adopted, the channel is secured in advance, so that the transmission opportunity is secured and the QoS is satisfied. However, transmitting dummy information reduces the frequency utilization efficiency and should be avoided.
[0024]
　<1.3. Overview of Proposed Method>
　Therefore, in view of the above-described technical problem, the present disclosure proposes a mechanism that allows a plurality of base station devices 100 operated by different operators to share frequency resources in cooperation with each other.
[0025]
　In this embodiment, a guaranteed resource is set for the base station device 100. The guaranteed resource is a wireless resource (time resource and frequency resource) that can be preferentially used by the base station apparatus 100 among wireless resources that can be shared by different operators. Then, the plurality of base station devices 100 operated by different operators share the setting information regarding the guaranteed resources. Each base station device 100 imposes restrictions on its own use of the guaranteed resource set in another base station device 100 operated by another operator based on the shared setting information. That is, the guaranteed resource set in the base station device 100 of one operator is less likely to be used by the base station device 100 of another operator. By such cooperation, the acquisition rate of the channel access right in the guaranteed resource set in itself of the base station apparatus 100 is improved.
[0026]
　<1.4. Related Technology>
　Below, a technology related to the proposed method will be described.
[0027]
　　 In
　NR, a physical channel and/or a physical signal can be transmitted by self-contained transmission. FIG. 2 shows an example (A to C) of a frame configuration for self-contained transmission in the present embodiment. In self-contained transmission, one transmission/reception is composed of consecutive downlink transmission, GP, and consecutive downlink transmission from the beginning. The continuous downlink transmission includes at least one downlink control information and DMRS. The downlink control information instructs reception of a downlink physical channel included in the continuous downlink transmission or transmission of an uplink physical channel included in the continuous uplink transmission. When the downlink control information instructs reception of the downlink physical channel, the terminal device 200 tries to receive the downlink physical channel based on the downlink control information. Then, the terminal device 200 transmits the success or failure of reception (decoding success or failure) of the downlink physical channel through the uplink control channel included in the uplink transmission allocated after GP. On the other hand, when the downlink control information instructs transmission of the uplink physical channel, the uplink physical channel transmitted based on the downlink control information is included in the uplink transmission for transmission. As described above, by flexibly switching the transmission of the uplink data and the transmission of the downlink data according to the downlink control information, it is possible to immediately cope with the increase or decrease of the traffic ratio of the uplink and the downlink. In addition, downlink low-delay communication can be realized by notifying the success or failure of downlink reception by immediately following uplink transmission.
[0028]
　The unit slot time is a minimum time unit that defines downlink transmission, GP, or uplink transmission. Unit slot time is reserved for either downlink transmission, GP, or uplink transmission. Both downlink transmission and uplink transmission are not included in the unit slot time. The unit slot time may be the minimum transmission time of the channel associated with the DMRS included in the unit slot time. One unit slot time is defined by , for example, the sampling interval (T s ) of NR or an integer multiple of the symbol length.
[0029]
　The unit frame time may be the minimum time specified in scheduling. The unit frame time may be a minimum unit in which the transport block is transmitted. The unit slot time may be the maximum transmission time of the channel associated with the DMRS included in the unit slot time. The unit frame time may be a unit time for determining the uplink transmission power in the terminal device 200. The unit frame time may be referred to as a subframe. There are three types of unit frame time: only downlink transmission, only uplink transmission, and combination of uplink transmission and downlink transmission. One unit frame time is defined by, for example, the sampling interval (T s ) of NR , the symbol length, or an integral multiple of the unit slot time.
[0030]
　The transmission/reception time is one transmission/reception time. Between one transmission/reception and the other transmission/reception is occupied a time (gap) during which no physical channel and no physical signal is transmitted. The terminal device 200 does not have to average the CSI measurements between different transmissions. The transmit/receive time may be referred to as TTI. One transmission/reception time is defined by, for example, an NR sampling interval (T s ), a symbol length, a unit slot time, or an integral multiple of a unit frame time.
[0031]
　　 The channel access (Channel access, Listen before Talk) procedure is performed to access the unlicensed channel transmitted by the base station apparatus or the terminal apparatus.
[0032]
　In the channel access procedure, channel sensing is performed once or a plurality of times. Based on the result of the sensing, it is determined (idle determination) whether the channel is idle (idle, unoccupied, available, enable) or busy (busy, occupied, unavailable, disable). In channel sensing, the power of the channel is sensed during a given waiting time.
[0033]
　Examples of the latency of the channel access procedure include a first latency (slot), a second latency, and a third latency (deferral period), a fourth latency.
[0034]
　A slot is a unit of waiting time of a base station device and a terminal device in a channel access procedure. The slot is defined by, for example, 9 microseconds.
[0035]
　In the second waiting time, one slot is inserted at the head. The second waiting time is defined as, for example, 16 microseconds.
[0036]
　The defer period consists of a second waiting time and a plurality of consecutive slots following the second waiting time. The number of consecutive slots following the second waiting time is determined based on a priority class used to satisfy QoS.
[0037]
　The fourth waiting time is constituted by the second waiting time and one slot following the second waiting time.
[0038]
　The base station device or the terminal device senses a predetermined channel during a predetermined slot. A given slot is considered idle if the power detected by the base station or terminal for at least 4 microseconds within the given slot period is less than a predetermined power detection threshold. .. On the other hand, if the power is greater than the predetermined power detection threshold, then the given slot is considered busy.
[0039]
　The channel access procedure includes a first channel access procedure and a second channel access procedure. The first channel access procedure is performed using a plurality of slots and deferral periods. The second channel access procedure is performed with one fourth latency.
[0040]
　The parameters for channel access are determined based on the priority class. The parameters relating to channel access include, for example, the minimum collision window, the maximum collision window, the maximum channel occupation time, the value that the collision window can take, and the like. The priority class is defined by the value of QCI (QoS class identifier) ​​that processes QoS (Quality of Service). Table 1 shows a correspondence table of parameters related to priority classes and channel access, and Table 2 shows an example of mapping of priority classes and QCIs.
[0041]
[table 1]

[0042]
[Table 2]

[0043]
　　 In
　the first channel access procedure, the procedure described below is performed.
[0044]
　(0) Channel sensing is performed during the postponement period. If the channel was idle in the slot within the deferral period, go to step (1), else go to step (6).
[0045]
　(1) Obtain the initial value of the counter. The possible initial value of the counter is an integer between 0 and the collision window CW. The initial value of the counter is randomly determined according to the uniform distribution. The initial value of the counter is set in the counter N, and the process proceeds to step (2).
[0046]
　(2) When the counter N is larger than 0 and the subtraction of the counter N is selected, 1 is subtracted from the counter N. Then, the process proceeds to step (3).
[0047]
　(3) The slot period is added to wait. Also, in that additional slot, the channel is sensed. If the additional slot was idle, go to step (4), else go to step (5).
[0048]
　(4) If the counter N is 0, stop this procedure. If not, proceed to step (2).
[0049]
　(5) A postponement period will be added for waiting. Also, the channel is sensed until it is detected as busy on any one of the slots included in the additional deferral period, or until all slots included in the additional deferral period can be detected as idle. .. Then, the process proceeds to step (6).
[0050]
　(6) If the channel is sensed to be idle in all of the slots included in its additional deferral period, go to step (4), else go to step (5).
[0051]
　After stopping the step (4) in the above procedure, transmission including data such as PDSCH and PUSCH is performed on the channel.
[0052]
　After the step (4) in the above procedure is stopped, transmission may not be performed on the channel. In this case, then, transmission may be performed without performing the above procedure if the channel was idle in all of the slots and deferrals immediately before transmission. On the other hand, if the channel was not idle in any of its slots and its deferrals, then it was sensed that the channel was idle in all of the slots in the additional deferrals, then (1 ) Go to step.
[0053]
　　 In
　the second channel access procedure, transmission may be performed immediately after the channel is considered to be idle as a result of sensing at least the fourth waiting time. On the other hand, if at least the fourth latency sensing results in the channel not being considered idle, then no transmission occurs.
[0054]
　　
　The collision window CW (contention window) used in the first channel access procedure is determined based on the collision window adaptation procedure.
[0055]
　The value of the collision window CW is held for each priority class. Further, the collision window CW takes a value between the minimum collision window and the maximum collision window. The minimum collision window and the maximum collision window are determined based on the priority class.
[0056]
　The adjustment of the value of the collision window CW is performed before the step (1) of the first channel access procedure. Increase the value of collision window CW if the proportion of NACK in the HARQ response corresponding to the shared channel of the reference subframe or the reference HARQ process in the collision window adaptation procedure is higher than the threshold value, otherwise Set the value to the minimum collision window.
[0057]
　The value of the collision window CW is increased based on the equation of CW=2·(CW+1)−1, for example.
[0058]
　　 When performing downlink transmission including PDSCH, PDCCH, and/or EPDCCH in an unlicensed channel, the base station device uses the first channel access procedure to perform the downlink transmission. , And perform its downlink transmission.
[0059]
　On the other hand, in the unlicensed channel, when performing downlink transmission including DRS but not PDSCH, the base station apparatus accesses the channel based on the second channel access procedure and performs the downlink transmission. The downlink transmission period is preferably shorter than 1 millisecond.
[0060]
　　 In the
　unlicensed channel, when instructed to perform the first channel access procedure in the uplink grant that schedules the PUSCH, the terminal device transmits the uplink transmission including the PUSCH. First do the first channel access procedure.
[0061]
　When instructed to perform the second channel access procedure in the uplink grant that schedules the PUSCH, the terminal device performs the second channel access procedure before the uplink transmission including the PUSCH.
[0062]
　For uplink transmission that does not include PUSCH but does include SRS, the terminal device performs the second channel access procedure before the uplink transmission.
[0063]
　In addition, when the end of the uplink transmission instructed by the uplink grant is within the uplink period (UL duration), the terminal device transmits the uplink transmission regardless of the procedure type instructed by the uplink grant. Perform the second channel access procedure before.
[0064]
　In addition, when uplink transmission continues with a fourth waiting time after the downlink transmission from the base station ends, the terminal device performs the second channel access procedure before the uplink transmission.
[0065]
　　 In the channel access procedure in the
　unlicensed channel using NR, non-beamformed channel sensing and beamformed channel sensing are performed.
[0066]
　The non-beamformed channel sensing is channel sensing by reception in which directivity is not controlled, or channel sensing having no direction information. The channel sensing having no direction information is, for example, channel sensing obtained by averaging the measurement results in all directions. The transmitting station does not have to recognize the directivity (angle, direction) used in channel sensing.
[0067]
　The beamformed channel sensing is channel sensing by reception whose directionality is controlled, or channel sensing having direction information. That is, it is channel sensing in which the reception beam is directed in a predetermined direction. A transmitting station having a function of performing beamformed channel sensing can perform channel sensing one or more times using different directivities.
[0068]
　By performing beamformed channel sensing, the area detected by sensing is narrowed. By this means, the transmitting station can reduce the frequency of detection of communication links that do not interfere, and reduce the exposed terminal problem.
[0069]
　<<2. Configuration example>>
　<2.1. Configuration Example of Base Station Device>
　FIG. 3 is a block diagram showing an example of the configuration of the base station device 100 according to the present embodiment. Referring to FIG. 3, the base station device 100 includes an antenna unit 110, a wireless communication unit 120, a network communication unit 130, a storage unit 140, and a control unit 150.
[0070]
　(1) Antenna unit 110 The
　antenna unit 110 radiates the signal output from the wireless communication unit 120 as a radio wave into space. The antenna unit 110 also converts radio waves in the space into a signal and outputs the signal to the wireless communication unit 120.
[0071]
　(2) Wireless Communication Unit 120 The
　wireless communication unit 120 transmits and receives signals. For example, the wireless communication unit 120 transmits a downlink signal to the terminal device and receives an uplink signal from the terminal device.
[0072]
　(3) Network communication unit 130 The
　network communication unit 130 transmits and receives information. For example, the network communication unit 130 transmits information to other nodes and receives information from other nodes. For example, the other node includes another base station and a core network node.
[0073]
　(4) Storage Unit 140 The
　storage unit 140 temporarily or permanently stores a program and various data for the operation of the base station device 100.
[0074]
　(5) Control Unit 150 The control unit 150
　controls the overall operation of the base station device 100 and provides various functions of the base station device 100. The control unit 150 includes a setting unit 151 and a communication processing unit 153.
[0075]
　The setting unit 151 has a function of making settings related to communication with the terminal device 200. For example, the setting unit 151 sets a guaranteed resource that can be preferentially used by the base station device 100 itself. Further, the setting unit 151 performs negotiation for setting a guaranteed resource with another base station device 100 operated by an operator different from the operator operating the base station device 100. Similarly, the setting unit 151 negotiates with the other base station apparatus 100 to set a guaranteed resource that can be preferentially used by the other base station apparatus 100.
[0076]
　The communication processing unit 153 has a function of performing communication processing with the terminal device 200. For example, the communication processing unit 153 preferentially uses the guaranteed resource set by the setting unit 151 to perform communication with the terminal device 200. Further, the communication processing unit 153 restricts the use of the guaranteed resource set in the other base station apparatus 100, and enables the other base station apparatus 100 to preferentially use the guaranteed resource.
[0077]
　The control unit 150 may further include other components other than these components. That is, the control unit 150 can perform operations other than the operations of these components.
[0078]
　<2.2. Example of Configuration of Terminal Device>
　FIG. 4 is a block diagram showing an example of the configuration of the terminal device 200 according to the present embodiment. Referring to FIG. 4, the terminal device 200 includes an antenna unit 210, a wireless communication unit 220, a storage unit 230, and a control unit 240.
[0079]
　(1) Antenna part 210 The
　antenna part 210 radiates the signal output by the wireless communication part 220 to space as a radio wave. The antenna unit 210 also converts radio waves in the space into a signal and outputs the signal to the wireless communication unit 220.
[0080]
　(2) Wireless communication unit 220 The
　wireless communication unit 220 transmits and receives signals. For example, the wireless communication unit 220 receives a downlink signal from the base station and transmits an uplink signal to the base station.
[0081]
　(3) Storage unit 230 The
　storage unit 230 temporarily or permanently stores a program and various data for the operation of the terminal device 200.
[0082]
　(4) Control Unit 240 The control unit 240
　controls the overall operation of the terminal device 200 and provides various functions of the terminal device 200. The control unit 240 includes a measurement reporting unit 241 and a communication processing unit 243.
[0083]
　The measurement reporting unit 241 has a function of performing measurement reporting processing. The measurement reporting unit 241 measures a measurement signal (for example, a measurement signal such as DS (Discovery Signal) or CSI-RS (Channel State Information Reference Signal)) transmitted from the base station device 100. In the present embodiment, the measurement report unit 241 transmits from not only the base station device 100 to which the terminal device 200 connects but also another base station device 100 operated by an operator different from the operator who operates the base station device 100. The measured signal for measurement is measured. Examples of the measurement performed by the measurement reporting unit 241 include RRM (Radio Resource Management) measurement (RSRP (Reference Signal Received Power), RSRQ (Reference Signal Received Quality), or RSSI (Received signal strength Indicator) measurement) or CSI measurement. Can be mentioned. The measurement report unit 241 transmits a measurement report including information indicating the measurement result to the base station device 100.
[0084]
　The communication processing unit 243 has a function of performing communication processing with the base station device 100. For example, the communication processing unit 243 communicates with the base station device 100 using the guaranteed resource set by the base station device 100.
[0085]
　The control unit 240 may further include other components other than these components. That is, the control unit 240 can perform operations other than the operations of these components.
[0086]
　<<3. Technical Features>> In the
　following, the base station apparatus 100 to which the guaranteed resource is set is referred to as a first base station apparatus 100. In addition, the base station apparatus 100 that performs a process that enables the first base station apparatus 100 to preferentially use the guaranteed resource set in the first base station apparatus 100 is the second base station apparatus 100. Also called. The second base station device 100 is operated by an operator different from the operator who operates the first base station device 100. The operator who operates the first base station apparatus 100 is also called a first operator, and the operator who operates the second base station apparatus 100 is also called a second operator.
[0087]
　The base station device 100 can function as both the first base station device 100 and the second base station device 100. When the base station device 100 functions as the first base station device 100, the guaranteed resource corresponds to the first guaranteed resource which is the guaranteed resource set in itself, and the setting information corresponds to the first setting information. .. When the base station device 100 functions as the second base station device 100, the guaranteed resource corresponds to the second guaranteed resource which is a guaranteed resource set in another base station device 100 operated by another operator. The setting information corresponds to the second setting information.
[0088]
　The technical features of this embodiment will be described in detail below.
[0089]
　(1) Sharing of Guaranteed Resource Setting Information
　The first base station device 100 (for example, the setting unit 151) can be shared by the second base station device 100 between the first operator and the second operator. Of the wireless resources, the first base station apparatus 100 transmits the setting information of the guaranteed resource that can be used preferentially. The number of the second base station device 100, which is the transmission destination of the setting information, may be one or plural. The second operator may be one or plural. By transmitting the setting information to the second base station device 100, the second base station device 100 performs a process that enables the first base station device 100 to preferentially use the guaranteed resource. .. As a result, the first base station device 100 can preferentially use the guaranteed resource. It can be understood that the security resource setting information is information requesting permission of preferential use of the security resource by the first base station apparatus 100. Note that the use of guaranteed resources may be used for transmitting/receiving an uplink signal or may be used for transmitting/receiving a downlink signal.
[0090]
　The second base station device 100 (for example, the setting unit 151) can be preferentially used by the first base station device 100 among the radio resources that can be shared between the first operator and the second operator. The security resource setting information is received from the first base station device 100. Then, the second base station device 100 (for example, the communication processing unit 153) performs a process that allows the first base station device 100 to preferentially use the guaranteed resource based on the received setting information. To do. Specifically, the second base station device 100 limits the use of guaranteed resources that the first base station device 100 can preferentially use. The second base station device 100 can allow the first base station device 100 to preferentially use the guaranteed resource by limiting the use of the guaranteed resource based on the received setting information.
[0091]
　The first base station device 100 and the second base station device 100 sharing the setting information have a relationship in which the coverages overlap or are adjacent to each other. In other words, the setting of the guaranteed resource of the first base station device 100 is effective within the coverage of the first base station device 100. Therefore, the first base station apparatus 100 allocates the guaranteed resource of the first base station apparatus 100 to the guaranteed resource of the first base station apparatus 100 more than that of the second base station apparatus 100 in which the coverage of the first base station apparatus 100 overlaps or is adjacent to. It is available with priority.
[0092]
　(2) Operation
　in Guaranteed Resource-Usage Restriction of Guaranteed Resource in Second Base Station Device 100
　Hereinafter, the usage restriction of the guaranteed resource by the second base station device 100 (for example, the communication processing unit 153) will be described in detail.
[0093]
　The second base station device 100 releases the guaranteed resource. Specifically, when the wireless resource being used and the guaranteed resource overlap, the second base station device 100 stops using the wireless resource in the overlapping portion. This point will be described with reference to FIG. FIG. 5 is a diagram for explaining the release of the guaranteed resource according to this embodiment. The upper part of FIG. 5 illustrates the release of the guaranteed resource by the second base station device 100. The lower part of FIG. 5 illustrates the use of guaranteed resources by the first base station apparatus 100. The radio resource at frequency f and times t 1 to t 3 is a non-guaranteed resource, and the radio resource at frequency f and times t 3 to t 5 is a guaranteed resource that can be preferentially used by the first base station apparatus 100. Shall be Further, it is assumed that the time from t 2 to t 4 is the channel occupancy time of the frequency f of the second base station device 100. The channel reservation time is a period during which the access right to the channel (that is, the frequency f) reserved by the channel access based on the LBT is valid. As shown in the upper part of FIG. 5, since the second base station device 100 is within the non-guaranteed resource and the channel reservation time from time t 2 to t 3 , the second base station device 100 uses the frequency f for which the access right is reserved for signal transmission. To send. On the other hand, time t 3Since it becomes a guaranteed resource thereafter, the second base station device 100 stops using the frequency f at time t 3 . That is, the second base station device 100 stops the transmission of the signal using the frequency f and releases the frequency f at time t 3 .
[0094]
　The second base station device 100 does not have to use the guaranteed resource. In the example illustrated in the upper part of FIG. 5, the second base station device 100 releases the frequency f without transmitting the signal using the frequency f from the time t 3 to the time t 5 . By this means, it is possible to reliably ensure the preferential use of guaranteed resources by the first base station apparatus 100.
[0095]
　The second base station device 100 may use the guaranteed resource after performing carrier sense. In the example illustrated in the upper part of FIG. 5, the second base station device 100 temporarily stops using the frequency f and releases the frequency f at time t 3 . After that, the second base station device 100 performs carrier sense of the frequency f again, secures the access right, and then uses the frequency f. In other words, the second base station device 100 uses the guaranteed resource when the first base station device 100 does not use the guaranteed resource. As a result, it is possible to prevent the first base station apparatus 100 from preferentially using the guaranteed resource, and at the same time prevent the frequency use efficiency from being lowered when the first base station apparatus 100 does not use the guaranteed resource. ..
[0096]
　-Use of guaranteed resource in
　first base station apparatus 100 The first base station apparatus 100 (for example, the communication processing unit 153) preferentially uses the guaranteed resource.
[0097]
　To preferentially use the guaranteed resource means, for example, not to perform the above-mentioned use restriction. That is, the first base station device 100 may continue to use the wireless resource in the overlapping portion even when the wireless resource being used and the guaranteed resource overlap. Further, the first base station device 100 may use the guaranteed resource without performing can rearrangement. The use of the guaranteed resource by the first base station apparatus 100 will be described with reference to FIG. 5 again. As shown in the lower part of FIG. 5, times t 3 to t 5 are guaranteed resources. Therefore, the first base station apparatus 100, time t 3 to start the use of security resources from. In the example illustrated in the lower part of FIG. 5, the first base station device 100 releases the wireless resource at time t 5 , which is the end time of the guaranteed resource . The first base station apparatus 100 may continuously use the same frequency even after the guaranteed resource is ended.
[0098]
　The first base station apparatus 100 transmits, for example, a signal/information having a high priority in the guaranteed resource. Examples of high-priority signals/information include synchronization signals, random access channels, paging, system information, reference signals and control information (ACK/NACK, etc.), and data requiring low delay.
[0099]
　(3) Setting Guaranteed Resources
　The first base station device 100 (for example, the setting unit 151) may set guaranteed resources by itself and generate setting information. Thereby, the first base station apparatus 100 can adaptively set the guaranteed resource according to the interference between the operators, the priority of the data to be transmitted and received, and the like. Setting of guaranteed resources will be described with reference to FIG. FIG. 6 is a diagram for explaining the setting of guaranteed resources according to this embodiment. As shown in FIG. 6, the first base station apparatus 100 is configured such that the first base station apparatus 100 has a frequency f and radio resources from time t 1 to t 2 , a frequency f and radio resources from time t 3 to t 4 , and frequency f and time t. Radio resources from 5 to t 6 are set as guaranteed resources. The first base station device 100 can preferentially use these wireless resources set as the guaranteed resources. On the other hand, the radio resource at the frequency f and the times t 2 to t 3 and the frequency f and the times t 4 to t 5The wireless resources up to are non-guaranteed resources. The non-guaranteed resource is a wireless resource that is not set as a guaranteed resource. The first base station apparatus 100 and the second base station apparatus 100 use these non-guaranteed resources by performing channel access based on LBT.
[0100]
　The first base station device 100 may set the guaranteed resource so as to satisfy a predetermined condition. The predetermined condition may be, for example, that the ratio of guaranteed resources to the entire wireless resources is less than a predetermined threshold value. This prevents a radio resource from being monopolized by a specific operator. The predetermined threshold value is set as 10%, for example. The predetermined threshold value may be set according to the total number of operators who operate the first base station apparatus 100 and the second base station apparatus 100. In that case, the predetermined threshold value is set as, for example, 10/(total number of operators)%.
[0101]
　The setting of the guaranteed resource and the generation of the setting information may be performed by the control entity possessed by the operator. Such a control entity is included in the core network 20, for example.
[0102]
　The guaranteed resource may be set in the terminal device 200 for uplink transmission such as PRACH, SRS, PUCCH, or PUSCH. The guaranteed resource is set by system information (MIB or SIB) or RRC signaling. The terminal device 200 can preferentially transmit the uplink channel/signal in the guaranteed resource.
[0103]
　The physical channel or physical signal transmitted from the terminal device 200 using the guaranteed resource is, for example, PRACH, SRS for beam management, PUCCH including HARQ-ACK, SPS (Semi-Persistent Scheduling) or grant-free PUSCH (DCI). PUSCH) that is not scheduled by, and the like.
[0104]
　As an example of the setting of the time resource of the guaranteed resource, a cycle and an offset can be mentioned.
[0105]
　An example of setting the time resource of the guaranteed resource is a set of slots represented by a bitmap. Each bit of the bitmap corresponds to each slot (or slot group or subframe). Bit 0/1 represents a guaranteed resource/non-guaranteed resource.
[0106]
　An example of the setting of the frequency resource of the guaranteed resource is a set of resource blocks represented by a bitmap. Each bit of the bitmap corresponds to a resource block (or resource block group). Bit 0/1 represents a guaranteed resource/non-guaranteed resource.
[0107]
　An example of the setting of guaranteed resources is the designation of physical channels and physical signals that are permitted to be transmitted by the set guaranteed resources. For example, in the guaranteed resource, the PUCCH including HARQ is permitted to be transmitted, but the PUCCH not including HARQ is not permitted to be transmitted. This allows flexible control according to the communication environment.
[0108]
　It is preferable that the guaranteed resource is set to a primary cell (PCell) or a primary secondary cell (PSCell) to which signals/information having high priority are transmitted. In other words, it is preferable that the guaranteed resource is not set in the secondary cell.
[0109]
　Further, the band in which the guaranteed resource can be set may be limited so that the same band can be set for all operators.
[0110]
　Furthermore, the terminal device 200 may acquire shared information of different operators. The terminal device 200 may acquire shared information of different operators via the base station device 100 to be connected, or may be a shared physical channel and/or physical channel between operators transmitted from the base station device 100 of different operators. It may be obtained from the signal. As a result, the terminal device 200 can perform communication while avoiding the guaranteed resources of different operators.
[0111]
　(4) Negotiation for setting guaranteed resources The negotiation for setting
　guaranteed resources may be performed between operators. For example, the first base station device 100 (for example, the setting unit 151) and the second base station device 100 (for example, the setting unit 151) may negotiate for setting a guaranteed resource. In addition, negotiation may be performed between the control entities that each operator has.
[0112]
　Negotiation Before Setting Guaranteed Resources
　For example, the second base station apparatus 100 may transmit to the first base station apparatus 100 information indicating a wireless resource that is requested not to be set as a guaranteed resource. .. A radio resource that is requested not to be set as a guaranteed resource is a radio resource that is not preferable for the second base station device 100 to be set as a guaranteed resource. Such radio resources include, for example, radio resources for signals/information having high priority. Examples of signals/information having high priority include synchronization signals, random access channels, paging, system information, reference signals and control information (ACK/NACK, etc.), and data requiring low delay.
[0113]
　For example, the second base station device 100 may transmit, to the first base station device 100, information indicating a radio resource that can be set as a guaranteed resource. A radio resource that is allowed to be set as a guaranteed resource is a radio resource that may be set as a guaranteed resource for the second base station device 100. Examples of such wireless resources include wireless resources other than the above-mentioned wireless resources that are not required to be set as guaranteed resources.
[0114]
　By performing such negotiation before the setting of the guaranteed resource, the negotiation after the setting described later is unnecessary, and thus it becomes possible to efficiently set the guaranteed resource.
[0115]
　-Negotiation after setting guaranteed resources
　Whether the second base station apparatus 100 approves that the first base station apparatus 100 preferentially uses the guaranteed resources set in the first base station apparatus 100. A response indicating that may be transmitted to the first base station device 100. In other words, the second base station device 100 may determine whether to accept or reject the guaranteed resource use restriction imposed on itself, and transmit the determination result to the first base station device 100. The second base station device 100 makes such a determination based on the guaranteed resource setting information received from the first base station device 100. When the second base station device 100 accepts the use restriction, the second base station device 100 restricts the use of the guaranteed resource. On the other hand, when the second base station apparatus 100 rejects the usage restriction, it does not restrict the usage of the guaranteed resource.
[0116]
　The second base station device 100 may transmit information requesting a change of the guaranteed resource to the first base station device 100. The request to change the guaranteed resource may be a request to move the guaranteed resource to another wireless resource, a request to cancel the setting of the guaranteed resource, or release the guaranteed resource. May be a request for that. The second base station apparatus 100 can request the change of the guaranteed resource when the radio resource which is not preferable to be set as the guaranteed resource is set as the guaranteed resource. The first base station device 100 changes, cancels, or releases the guaranteed resource based on the request.
[0117]
　The first base station device 100 guarantees the security based on the response from the second base station device 100 indicating whether or not the first base station device 100 permits the first base station device 100 to preferentially use the guaranteed resource. Controls the transmission and reception of signals in resources. In other words, the first base station device 100 controls the transmission/reception of the signal in the guaranteed resource based on the response from the second base station device 100 indicating whether or not to accept the use restriction of the guaranteed resource. For example, the first base station apparatus 100 preferentially uses the guaranteed resource when a response is received to approve the use restriction of the guaranteed resource. On the other hand, the first base station apparatus 100 does not preferentially use the guaranteed resource if a response is received that rejects the use restriction of the guaranteed resource. When there are a plurality of second base station devices 100, the first base station device 100 preferentially uses the guaranteed resource if a response to reject the use restriction of the guaranteed resource is obtained. Absent. This makes it possible to prevent interference between operators. The refusal response may include information indicating the reason for refusal. For example, the information included in the response to be rejected includes rejection information due to an excessive guarantee resource request, rejection information indicating that the requested guarantee resource overlaps with another guarantee resource, and the like.
[0118]
　By such negotiation after the setting of the guaranteed resource, a plurality of operators who share the wireless resource can avoid the setting of the guaranteed resource by another operator to the wireless resource which should not be set as the guaranteed resource. ..
[0119]
　It is desirable that at least one of the negotiation before the setting of the guaranteed resource and the negotiation after the setting of the guaranteed resource is performed. Of course, both may be implemented.
[0120]
　(5) Information shared between operators
　The first base station device 100 (for example, the setting unit 151) and the second base station device 100 (for example, the setting unit 151) share various information (that is, Send and receive). The information shared between the first base station device 100 and the second base station device 100 is also referred to as shared information below. Whenever there is a change in the shared information, it will be shared again each time.
[0121]
　-Guaranteed Resource Setting Information
　The first base station apparatus 100 transmits the guaranteed resource setting information set in the first base station apparatus 100 to the second base station apparatus 100. The security resource setting information includes at least one of the following information.
[0122]
　For example, the security resource setting information includes information indicating a wireless resource set as a security resource. Such information includes information indicating the frequency and time of the wireless resource set as the guaranteed resource.
[0123]
　For example, the guarantee resource setting information includes information indicating a location where the guarantee resource setting is valid. Such information may include position information (latitude and longitude, and altitude) of the first base station device 100, a coverage range of the first base station device 100, and the like.
[0124]
　For example, the guarantee resource setting information may include information indicating the priority of signals/information transmitted/received using the guarantee resource. The information may be information indicating a signal transmitted/received using the guaranteed resource.
[0125]
　For example, the guaranteed resource setting information may include information indicating the type of guaranteed resource described later.
[0126]
　Information for negotiation
　The first base station device 100 and the second base station device 100 transmit and receive the information for negotiation described above. The information for negotiation includes at least one of the information exemplified below.
[0127]
　For example, the information for negotiation includes the information for negotiation before setting the above-mentioned guaranteed resource. Specifically, the information for negotiation includes information indicating a wireless resource requested not to be set as a guaranteed resource or information indicating a wireless resource allowed to be set as a guaranteed resource.
[0128]
　For example, the information for negotiation includes the information for negotiation after setting the above-mentioned guaranteed resource. Specifically, the information for negotiation includes information requesting a change of the guaranteed resource and information indicating whether to accept the request for the change of the guaranteed resource. Further, the information for negotiation includes information indicating acceptance/rejection of the use restriction of the guaranteed resource.
[0129]
　(6) Sharing Means
　Various sharing means of the above-mentioned shared information can be considered.
[0130]
　The shared information may be wirelessly transmitted and received using a physical channel or a physical signal for sharing between operators. For example, the first base station device 100 (for example, the setting unit 151) may include the setting information in a wireless signal and transmit the wireless signal to the second base station device 100. One example of a shared physical channel between operators is PDSCH. One example of a shared physical channel between operators is the PBCH. The shared physical channel between operators is preferably scrambled by an ID that identifies the operator. Examples of the physical signal for sharing between the operators include a discovery signal (Discovery Signal) for notifying at least an ID (operator ID) for identifying the operator. The shared information is preferably transmitted/received by being included in system information (MIB (Master Information Block) or SIB (System Information Block)), but may be transmitted/received by the PDCCH. The setting information is preferably transmitted periodically.
[0131]
　Note that the shared information may be transmitted including not only the information of the base station device 100 that is the transmission source but also the information of another base station device 100. In other words, the shared information may be relayed and transmitted by another base station device 100. Specifically, the base station device 100A transmits the shared information of the base station device 100B together with or instead of the shared information of itself. The base station device 100C, which has difficulty in directly receiving the shared information from the base station device 100B, can acquire the shared information of the base station device 100B via the base station device 100A. This allows a more flexible cell design.
[0132]
　The shared information may be transmitted and received using a backhaul line. That is, the first base station device 100 may transmit the first shared information to the second base station device 100 using the backhaul line. Shared information is transmitted and received using a backhaul line (for example, X2 interface or Xn interface). The backhaul line may be wired or wireless. Prior to sharing the shared information, information for connecting the first base station device 100 and the second base station device 100 via the backhaul line may be shared. The information for connecting the first base station apparatus 100 and the second base station apparatus 100 via the backhaul line includes, for example, operator identification information and base station apparatus 100 identification information. The first base station device 100 and the second base station device 100 establish the connection of the X2 interface and the Xn interface based on the information. Information for connecting the first base station device 100 and the second base station device 100 via the backhaul line can be transmitted using PDSCH. Alternatively, the information for connecting the first base station device 100 and the second base station device 100 via the backhaul line can be transmitted using the backhaul physical channel.
[0133]
　(7)
　Setting Format of
　Guaranteed Resource The first setting format guaranteed resource may be set in advance. In other words, the guaranteed resource may be statically configured. For example, the first base station device 100 predicts a radio resource required for transmitting/receiving a signal/information having a high priority, and presets a guaranteed resource. Typically, the first base station device 100 sets radio resources periodically, that is, repeatedly at predetermined time intervals. The first base station apparatus 100 transmits the setting information of the set guaranteed resource to the second base station apparatus 100. The first base station apparatus 100 may periodically transmit the setting information, or may omit the transmission of the setting information to the second base station apparatus 100 that has once transmitted the setting information. The first base station apparatus 100 transmits/receives signals/information having a high priority by using the set guaranteed resource.
[0134]
　The first base station device 100 and the second base station device 100 may perform the above-described negotiation before and after setting the guaranteed resource. When the guaranteed resource is statically set, it is desirable to perform negotiation before setting the guaranteed resource.
[0135]
　An example of the flow of the guaranteed resource setting process in the first setting format will be described below with reference to FIG. 7. FIG. 7 is a sequence diagram illustrating an example of the flow of static guarantee resource setting processing executed in the system 1 according to the present embodiment. The base station devices 100A, 100B and 100C are involved in this sequence. The base station device 100A is the first base station device 100, and the base station devices 100B and 100C are the second base station devices 100. The operators operating each of the base station devices 100A, 100B and 100C are different.
[0136]
　As shown in FIG. 7, the base station devices 100A, 100B and 100C negotiate with each other before setting the guaranteed resource (step S102). For example, the base station devices 100B and 100C transmit, to the base station device 100A, information indicating a wireless resource that is requested not to be set as a guaranteed resource and information indicating a wireless resource that is allowed to be set as a guaranteed resource. Next, the base station device 100A sets a guaranteed resource (step S104). For example, the base station device 100A avoids the radio resource requested not to be set as the guaranteed resource in step S102, and has a high priority signal/information within the range of the radio resource allowed to be set as the guaranteed resource. Set up guaranteed resources for. Next, the base station device 100A transmits the setting information of the set guaranteed resource to the base station devices 100B and 100C (step S106). After that, the base station device 100A transmits/receives a high-priority signal/information to/from the terminal device 200 within the coverage by using the set guaranteed resource.
[0137]
　After that, the base station device 100A resets the guaranteed resource (step S108). For example, the base station device 100A resets the guaranteed resource when it negotiates again with the base station device 100B or 100C. In that case, the base station device 100A resets the guaranteed resource in the same manner as in step S104 (step S108). Next, the base station device 100A transmits the reset guaranteed resource setting information to the base station devices 100B and 100C (step S110). After that, the base station device 100A transmits/receives a high-priority signal/information to/from the terminal device 200 within the coverage, using the reset guaranteed resource.
[0138]
　The second setting format
　guarantee resource may be set when a signal/information (or packet) to be transmitted/received using the guarantee resource is generated. In other words, the guaranteed resource may be dynamically set. For example, the first base station device 100 sets a guaranteed resource when a signal/information having a high priority occurs, for example, when a signal/information having a high priority arrives at the first base station device 100. To do. The first base station apparatus 100 transmits the setting information of the set guaranteed resource to the second base station apparatus 100.
[0139]
　The first base station device 100 and the second base station device 100 may perform the above-described negotiation before and after setting the guaranteed resource. When the guaranteed resource is dynamically set, it is desirable that the negotiation be performed after setting the guaranteed resource.
[0140]
　Depending on the second setting format, a guaranteed resource for one instance (a group of time resources) may be set or a guaranteed resource for a plurality of instances may be set. In other words, the first base station device 100 may set one future guaranteed resource or may set a plurality of future guaranteed resources using the second setting format.
[0141]
　An example of the flow of the guaranteed resource setting process in the second setting format will be described below with reference to FIG. FIG. 8 is a sequence diagram illustrating an example of a flow of a process of dynamically setting a guaranteed resource executed in the system 1 according to the present embodiment. The base station devices 100A, 100B and 100C are involved in this sequence. The base station device 100A is the first base station device 100, and the base station devices 100B and 100C are the second base station devices 100. The operators operating each of the base station devices 100A, 100B and 100C are different.
[0142]
　As shown in FIG. 8, when a packet with a high priority occurs in the base station device 100A (step S202), a guaranteed resource for transmitting/receiving a packet with a priority is set (step S204). After that, the base station devices 100A, 100B, and 100C perform negotiation after setting the guaranteed resource.
[0143]
　Specifically, the base station device 100A transmits the setting information of the set guaranteed resource to the base station devices 100B and 100C (step S206). The base station devices 100B and 100C determine whether or not to accept the setting of the guaranteed resource (step S208). That is, the base station devices 100B and 100C determine whether to accept the usage restrictions imposed on each of the guaranteed resources set by the base station device 100A. Then, the base station devices 100B and 100C transmit to the base station device 100A a response indicating the determination result of acceptance/rejection of the guarantee resource setting (step S210). When the base station apparatus 100A receives a response from the base station apparatuses 100B and 100C indicating that the guaranteed resource setting is accepted, the base station apparatus 100A transmits/receives a high-priority signal/information using the set guaranteed resource. .. On the other hand, the base station device 100A does not preferentially use the guaranteed resource when a response indicating that the guaranteed resource setting is rejected is received from at least one of the base station device 100B and 100C.
[0144]
　The third setting format
　guaranteed resource may be set again when the first base station device 100 fails to use the guaranteed resource. The failure here includes a negotiation failure in the above-mentioned negotiation after the setting of the guaranteed resource (that is, when a response indicating that the setting of the guaranteed resource is rejected is obtained). In addition, the failure may be a case where it is difficult to use the set guaranteed resource due to interference from another RAT (Radio Access Technology) such as Wi-Fi (registered trademark). In other words, the guaranteed resource may be reconfigured depending on the congestion degree of the channel. The congestion degree of the channel can be measured by the base station device 100 or the terminal device 200.
[0145]
　The fourth setting format
　guarantee resource may be reset periodically (periodically). The reset cycle may be set in advance in the base station device 100, may be determined by negotiation between the base station devices 100, or may be uniquely determined by a predetermined base station device 100. Furthermore, the cycle may be determined according to changes in the communication environment such as the degree of channel congestion or the movement of the base station device 100.
[0146]
　-Fifth setting format The
　above-mentioned first to fourth setting formats may be appropriately combined. For example, the first base station apparatus 100 statically sets the guarantee resource, and dynamically sets the guarantee resource at the timing when a signal/information having a high priority occurs. Furthermore, the first base station device 100 may reset the guaranteed resource when the use of the guaranteed resource fails.
[0147]
　Note that the position, period, and/or ratio of the guaranteed resource may be changed when a predetermined environment change occurs at the time of resetting. The case where the predetermined environment change occurs is, for example, the case where a new base station device 100 is discovered. As a result, it becomes easy to adjust the resource allocation amount for each base station apparatus 100 installed during operation, and fairness is ensured.
[0148]
　(8) Types of
　Guaranteed Resources There may be a plurality of types of guaranteed resources. The security resource setting information includes information indicating the type of security resource. A plurality of types of guaranteed resources can be set according to the usage form of the guaranteed resources. The first base station device 100 (for example, the communication processing unit 153) and the second base station device 100 (for example, the communication processing unit 153) control the use of the guaranteed resource according to the type of the guaranteed resource.
[0149]
　The type of guaranteed resource may correspond to the signal to be transmitted and received. For example, the guaranteed resource may include a first type and a second type in which signals transmitted and received using the guaranteed resource are different. The first base station apparatus 100 transmits/receives control signals/control information using the first type guaranteed resource. Here, the transmitted/received control signal/control information is a signal/information belonging to the control signal/control information among the signals/information having high priority. Such signals/information include signals essential to the connection, such as synchronization signals, random access channels, paging, system information and reference signals. On the other hand, the first base station device 100 transmits/receives the data signal/data information by using the guaranteed resource of the second type. Here, the transmitted/received data signal is a signal/information belonging to the data signal among the signals/information having high priority. Such signals/information include data signals requiring low delay.
[0150]
　The type of guaranteed resource may correspond to the access procedure to the guaranteed resource permitted by the second base station apparatus 100. For example, the guaranteed resource may include a third type and a fourth type in which access procedures (that is, channel access procedures) to the guaranteed resource permitted by the second base station apparatus 100 are different. The second base station device 100 releases the guaranteed resource of the third type and does not use it thereafter. In other words, the second base station device 100 does not have means for using the guaranteed resource of the third type. On the other hand, the second base station apparatus 100 releases the guaranteed resource of the fourth type, then performs carrier sense and then uses it.
[0151]
　As described above, a plurality of types are set as the guaranteed resources according to the usage form of the guaranteed resources, so that the first base station apparatus 100 and the second base station apparatus 100 can appropriately use the guaranteed resources. Will be realized.
[0152]
　(9) Measurement Report
　The first base station device 100 (for example, the setting unit 151) displays the measurement result of the signal from the second base station device 100 in the terminal device 200 that communicates with the first base station device 100. Based on this, the guaranteed resource may be set. Specifically, the terminal device 200 (for example, the measurement reporting unit 241) measures a signal (for example, a measurement signal such as DS (Discovery Signal) or CSI-RS (Channel State Information Reference Signal)) for each operator. For example, the terminal device 200 that communicates (that is, connects) with the first base station device 100 measures the signal from the second base station device 100. Examples of the measurement performed by the terminal device 200 include RRM (Radio Resource Management) measurement (RSRP (Reference Signal Received Power), RSRQ (Reference Signal Received Quality), or RSSI (Received Signal Strength Indicator) measurement) or CSI measurement. To be The measurement signal includes identification information (for example, operator ID) for identifying the second base station device 100 that is the transmission source, and the terminal device 200 identifies the signal for each operator based on the identification information. To do. Then, the terminal device 200 reports the measurement result to the first base station device 100 connected to itself. Then, the first base station device 100 sets a guaranteed resource based on the received measurement report. Thereby, the first base station apparatus 100 can set the guaranteed resource according to the interference from the second base station apparatus 100 at the position of the terminal apparatus 200.
[0153]
　Hereinafter, with reference to FIG. 9, an example of the flow of the guaranteed resource setting process based on the measurement report by the terminal device 200 will be described. FIG. 9 is a sequence diagram illustrating an example of the flow of a guaranteed resource setting process based on a measurement report executed in the system 1 according to the present embodiment. The base station devices 100A, 100B and 100C and the terminal device 200 are involved in this sequence. The base station device 100A is the first base station device 100, and the base station devices 100B and 100C are the second base station devices 100. The operators operating each of the base station devices 100A, 100B and 100C are different. Further, the terminal device 200 is assumed to be connected to the base station device 100A.
[0154]
　As shown in FIG. 9, the base station device 100A and the terminal device 200 are already connected and are communicating (step S302). The base station devices 100B and 100C transmit the measurement signal (step S304). The terminal device 200 performs measurement based on these measurement signals (step S306). At that time, the terminal device 200 identifies the base station devices 100B and 100C that are the transmission sources of the measurement signals based on the operator ID included in the measurement signals, and performs measurement on each of the base station devices 100B and 100C. Then, the terminal device 200 transmits a measurement report including the measurement result to the base station device 100A (step S308). The base station device 100A sets a guaranteed resource based on the received measurement report (step S310).
[0155]
　(10) Frame synchronization/time synchronization
　The first base station device 100 and the second base station device 100 may perform frame synchronization and/or time synchronization.
[0156]
　This allows the first base station apparatus 100 and the second base station apparatus 100 to transmit/receive signals to/from the terminal apparatus 200 at the same timing. Therefore, the first base station apparatus 100 and the second base station apparatus 100, that is, different operators can perform high-level cooperative cooperation. Examples of high-level cooperative coordination include ICIC (inter-cell interference coordination) and CoMP (Coordinated Multi-point transmission and reception).
[0157]
　Furthermore, the first base station device 100 and the second base station device 100 can cooperate to implement the LBT. For example, the first base station apparatus 100 and the second base station apparatus 100 can perform signal transmission/reception at the same timing by adjusting the LBT end timing to be the same. As a result, spatial resources are improved and cell throughput per unit density is improved.
[0158]
　(11) Other examples of
　shared information As shared information, information other than information regarding guaranteed resources may be shared. That is, information other than information on guaranteed resources may be shared between different operators. An example of such information will be described below.
[0159]
　-Type of terminal device 200, type of packet QoS and/or traffic amount Type of
　terminal device 200, type of QoS of packet and/or traffic amount may be shared between different operators.
[0160]
　For example, the traffic volume for each use case of eMBB/URLLC/mMTC may be shared. Further, the traffic amount for each QCI may be shared. The QCI is an index representing each QoS parameter of bandwidth guarantee/non-guaranteed (GBR/non-GBR), priority, and assumed delay time. QCI is added to each packet. QCI is defined for the envisioned service. The base station device 100 performs scheduling based on the QoS parameter associated with this QCI. Table 3 shows an example of a correspondence table between QCI and QoS parameters.
[0161]
[Table 3]

[0162]
　-Processing capacity of the
　base station apparatus 100 The processing capacity of the base station apparatus 100 may be shared by different operators.
[0163]
　For example, the capability information of the base station device 100 can be shared between different operators. Examples of the capability information of the base station device 100 include interference canceller capability, information about base station antennas, the number of antennas, and information indicating beam width and directivity.
[0164]
　-Communication environment around base station apparatus 100 The communication environment around
　base station apparatus 100 may be shared between different operators.
[0165]
　For example, the measurement report received from the terminal device 200 connected to the base station device 100 may be shared by different operators. By this means, the base station device 100 can also collect measurement reports from the terminal devices 200 of different operators. Therefore, the base station device 100 can schedule radio resources more efficiently. Further, the position information of the base station device 100 may be shared. This allows the base station device 100 to recognize the surrounding communication environment more accurately.
[0166]
　Information on time (time stamp) for
　time synchronization The information on time (time stamp) for time synchronization may be shared between different operators.
[0167]
　Information regarding time stamps is shared when time synchronization is performed between different operators. The information indicating the time stamp may be information indicating an absolute time or information indicating a reference time.
[0168]
　Parameters
　regarding LBT Parameters regarding LBT may be shared among different operators.
[0169]
　Examples of the LBT-related parameters include the maximum transmission power of the base station apparatus 100, the maximum antenna gain, the maximum beamforming gain, the collision window, and the random backoff counter value. By sharing these LBT-related parameters among different operators, the space reuse (frequency reuse) rate, which is a factor of using the same frequency band in different spaces, is improved, and the frequency use efficiency per unit area is improved. Can be improved.
[0170]
　-RCR setting information of the
　base station apparatus 100 Some RRC settings set in the base station apparatus 100 may be shared between different operators.
[0171]
　For example, some of the RRC settings set in the base station apparatus 100 are shared between different operators. Some of the RRC settings include, for example, a cell ID (Physical Cell ID) of the base station device 100, a resource set for a physical channel/signal, and the like. This facilitates cell design and radio resource management for different operators. Furthermore, the RRC settings for RACH (RACH resource, RACH index, etc.) may also be shared. This facilitates handover (cell connection switching) between base stations of different operators.
[0172]
　The operation related to the guaranteed resource is also applicable to vehicle communication (Vehicle to everything communication: V2X). The V2X includes vehicle-to-vehicle communication (V2V), vehicle-to-vehicle communication (V2I), and vehicle-to-network communication (
V2N). By replacing the operation of the base station device 100 with a car-type terminal, the same effect can be obtained in the ITS band (frequency band of 5.85 to 5.925 GHz). By reducing the interference of emergency messages such as emergency stop signals, steering assist signals, and autopilot signals, a certain car type terminal sets a guarantee resource and notifies the surrounding car type terminals of the guarantee resource. be able to.
[0173]
　<<4. Application Examples>>
　The technology according to the present disclosure can be applied to various products. For example, the base station apparatus 100 may be realized as an eNB (evolved Node B) of any type such as a macro eNB or a small eNB. A small eNB may be an eNB that covers a cell smaller than a macro cell, such as a pico eNB, a micro eNB or a home (femto) eNB. Instead, the base station device 100 may be realized as another type of base station such as a NodeB or a BTS (Base Transceiver Station). The base station device 100 may include a main body (also referred to as a base station device) that controls wireless communication, and one or more RRHs (Remote Radio Heads) that are arranged in different locations from the main body. In addition, various types of terminals described below may operate as the base station device 100 by temporarily or semipermanently executing the base station function.
[0174]
　Further, for example, the terminal device 200 is a mobile terminal such as a smartphone, a tablet PC (Personal Computer), a notebook PC, a portable game terminal, a portable/dongle type mobile router or a digital camera, or an in-vehicle terminal such as a car navigation device. May be realized as. In addition, the terminal device 200 may be realized as a terminal that performs M2M (Machine To Machine) communication (also referred to as an MTC (Machine Type Communication) terminal). Further, the terminal device 200 may be a wireless communication module mounted on these terminals (for example, an integrated circuit module configured by one die).
[0175]
　<4.1. Application Example Regarding Base Station Device>
　　　(First Application Example)
　FIG. 10 is a block diagram showing a first example of a schematic configuration of an eNB to which the technology according to the present disclosure can be applied. The eNB 800 has one or more antennas 810 and a base station device 820. Each antenna 810 and base station device 820 may be connected to each other via an RF cable.
[0176]
　Each of the antennas 810 has a single or a plurality of antenna elements (for example, a plurality of antenna elements forming a MIMO antenna), and is used for the base station apparatus 820 to transmit and receive radio signals. The eNB 800 has a plurality of antennas 810 as shown in FIG. 10, and the plurality of antennas 810 may correspond to a plurality of frequency bands used by the eNB 800, respectively. Although FIG. 10 shows an example in which the eNB 800 has a plurality of antennas 810, the eNB 800 may have a single antenna 810.
[0177]
　The base station device 820 includes a controller 821, a memory 822, a network interface 823, and a wireless communication interface 825.
[0178]
　The controller 821 may be, for example, a CPU or a DSP, and operates various functions of the upper layer of the base station device 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 may generate a bundled packet by bundling data from a plurality of baseband processors and may transfer the generated bundled packet. Further, the controller 821 is a logic for executing control such as radio resource management (Radio Resource Control), radio bearer control (Radio Bearer Control), mobility management (Mobility Management), admission control (Admission Control) or scheduling (Scheduling). It may have a general function. Further, the control may be executed in cooperation with the surrounding eNB or core network node. The memory 822 includes a RAM and a ROM, and stores a program executed by the controller 821 and various control data (for example, a terminal list, transmission power data, scheduling data, etc.).
[0179]
　The network interface 823 is a communication interface for connecting the base station device 820 to the core network 824. Controller 821 may communicate with core network nodes or other eNBs via network interface 823. In that case, the eNB 800 and the core network node or another eNB may be connected to each other by a logical interface (for example, the S1 interface or the X2 interface). The network interface 823 may be a wired communication interface or a wireless communication interface for wireless backhaul. When the network interface 823 is a wireless communication interface, the network interface 823 may use a higher frequency band for wireless communication than the frequency band used by the wireless communication interface 825.
[0180]
　The wireless communication interface 825 supports a cellular communication scheme such as LTE (Long Term Evolution) or LTE-Advanced, and provides a wireless connection to a terminal located in the cell of the eNB 800 via the antenna 810. The wireless communication interface 825 may typically include a baseband (BB) processor 826, an RF circuit 827, and the like. The BB processor 826 may perform, for example, encoding/decoding, modulation/demodulation, multiplexing/demultiplexing, and the like, and each layer (for example, L1, MAC (Medium Access Control), RLC (Radio Link Control), and PDCP). (Packet Data Convergence Protocol). The BB processor 826 may have some or all of the logical functions described above instead of the controller 821. The BB processor 826 may be a module that includes a memory that stores a communication control program, a processor that executes the program, and a related circuit. The function of the BB processor 826 may be changed by updating the program. Good. Further, the module may be a card or a blade inserted into the slot of the base station device 820, or a chip mounted on the card or the blade. On the other hand, the RF circuit 827 may include a mixer, a filter, an amplifier, and the like, and transmits and receives wireless signals via the antenna 810.
[0181]
　The wireless communication interface 825 includes a plurality of BB processors 826 as shown in FIG. 10, and the plurality of BB processors 826 may respectively correspond to a plurality of frequency bands used by the eNB 800, for example. The wireless communication interface 825 may include a plurality of RF circuits 827 as shown in FIG. 10, and the plurality of RF circuits 827 may correspond to, for example, a plurality of antenna elements. Although FIG. 10 shows an example in which the wireless communication interface 825 includes a plurality of BB processors 826 and a plurality of RF circuits 827, the wireless communication interface 825 includes a single BB processor 826 or a single RF circuit 827. But it's okay.
[0182]
　In the eNB 800 illustrated in FIG. 10, one or more components (setting unit 151 and/or communication processing unit 153) included in the control unit 150 described with reference to FIG. 3 are installed in the wireless communication interface 825. Good. Alternatively, at least some of these components may be implemented in controller 821. As an example, the eNB 800 includes a module including a part (for example, the BB processor 826) or all of the wireless communication interface 825 and/or the controller 821, and the one or more components may be mounted in the module. Good. In this case, the module stores a program for causing the processor to function as the one or more constituent elements (in other words, a program for causing the processor to execute the operation of the one or more constituent elements). You may run the program. As another example, even if a program for causing the processor to function as one or more components described above is installed in the eNB 800 and the wireless communication interface 825 (for example, the BB processor 826) and/or the controller 821 executes the program. Good. As described above, the eNB 800, the base station device 820, or the module may be provided as a device including the one or more components, and a program for causing a processor to function as the one or more components is provided. May be. A readable recording medium recording the above program may be provided.
[0183]
　Further, in the eNB 800 illustrated in FIG. 10, the wireless communication unit 120 described with reference to FIG. 3 may be mounted in the wireless communication interface 825 (for example, the RF circuit 827). The antenna unit 110 may be mounted on the antenna 810. Further, the network communication unit 130 may be implemented in the controller 821 and/or the network interface 823. The storage unit 140 may be implemented in the memory 822.
[0184]
　　　(Second Application Example)
　FIG. 11 is a block diagram showing a second example of a schematic configuration of an eNB to which the technology according to the present disclosure can be applied. The eNB 830 has one or more antennas 840, a base station device 850, and an RRH 860. Each antenna 840 and RRH 860 may be connected to each other via an RF cable. Further, the base station device 850 and the RRH 860 can be connected to each other by a high speed line such as an optical fiber cable.
[0185]
　Each of the antennas 840 has a single or a plurality of antenna elements (for example, a plurality of antenna elements forming a MIMO antenna), and is used for transmitting and receiving radio signals by the RRH 860. The eNB 830 includes a plurality of antennas 840 as illustrated in FIG. 11, and the plurality of antennas 840 may correspond to a plurality of frequency bands used by the eNB 830, for example. Note that FIG. 11 shows an example in which the eNB 830 has a plurality of antennas 840, but the eNB 830 may have a single antenna 840.
[0186]
　The base station device 850 includes a controller 851, a memory 852, a network interface 853, a wireless communication interface 855, and a connection interface 857. The controller 851, the memory 852, and the network interface 853 are the same as the controller 821, the memory 822, and the network interface 823 described with reference to FIG.
[0187]
　The wireless communication interface 855 supports a cellular communication scheme such as LTE or LTE-Advanced, and provides a wireless connection to a terminal located in a sector corresponding to the RRH 860 via the RRH 860 and the antenna 840. The wireless communication interface 855 may typically include a BB processor 856 or the like. The BB processor 856 is similar to the BB processor 826 described with reference to FIG. 10 except that the BB processor 856 is connected to the RF circuit 864 of the RRH 860 via the connection interface 857. The wireless communication interface 855 includes a plurality of BB processors 856 as shown in FIG. 11, and the plurality of BB processors 856 may respectively correspond to a plurality of frequency bands used by the eNB 830, for example. Although FIG. 11 shows an example in which the wireless communication interface 855 includes a plurality of BB processors 856, the wireless communication interface 855 may include a single BB processor 856.
[0188]
　The connection interface 857 is an interface for connecting the base station device 850 (radio communication interface 855) to the RRH 860. The connection interface 857 may be a communication module for communication on the high-speed line connecting the base station device 850 (radio communication interface 855) and the RRH 860.
[0189]
　The RRH 860 also includes a connection interface 861 and a wireless communication interface 863.
[0190]
　The connection interface 861 is an interface for connecting the RRH 860 (radio communication interface 863) to the base station device 850. The connection interface 861 may be a communication module for communication on the high speed line.
[0191]
　The wireless communication interface 863 transmits and receives wireless signals via the antenna 840. The wireless communication interface 863 may typically include an RF circuit 864 or the like. The RF circuit 864 may include a mixer, a filter, an amplifier, and the like, and transmits and receives a wireless signal through the antenna 840. The wireless communication interface 863 includes a plurality of RF circuits 864 as shown in FIG. 11, and the plurality of RF circuits 864 may correspond to a plurality of antenna elements, respectively. Although FIG. 11 shows an example in which the wireless communication interface 863 includes a plurality of RF circuits 864, the wireless communication interface 863 may include a single RF circuit 864.
[0192]
　In the eNB 830 illustrated in FIG. 11, one or more constituent elements (the setting unit 151 and/or the communication processing unit 153) included in the control unit 150 described with reference to FIG. 3 are the wireless communication interface 855 and/or the wireless communication interface 855. It may be implemented in the communication interface 863. Alternatively, at least some of these components may be implemented in controller 851. As an example, the eNB 830 includes a module including a part (for example, the BB processor 856) or all of the wireless communication interface 855 and/or the controller 851, and the one or more components may be mounted in the module. Good. In this case, the module stores a program for causing the processor to function as the one or more constituent elements (in other words, a program for causing the processor to execute the operation of the one or more constituent elements). You may run the program. As another example, a program for causing a processor to function as the one or more components may be installed in the eNB 830, and the wireless communication interface 855 (for example, the BB processor 856) and/or the controller 851 may execute the program. Good. As described above, the eNB 830, the base station device 850, or the module may be provided as a device including the one or more components, and a program for causing a processor to function as the one or more components is provided. May be. A readable recording medium recording the above program may be provided.
[0193]
　Further, in the eNB 830 illustrated in FIG. 11, for example, the wireless communication unit 120 described with reference to FIG. 3 may be mounted in the wireless communication interface 863 (for example, the RF circuit 864). The antenna unit 110 may be mounted on the antenna 840. Further, the network communication unit 130 may be implemented in the controller 851 and/or the network interface 853. Further, the storage unit 140 may be implemented in the memory 852.
[0194]
　<4.2. Application Example Regarding Terminal Device>
　　　(First Application Example)
　FIG. 12 is a block diagram showing an example of a schematic configuration of a smartphone 900 to which the technology according to the present disclosure can be applied. The smartphone 900 includes a processor 901, a memory 902, a storage 903, an external connection interface 904, a camera 906, a sensor 907, a microphone 908, an input device 909, a display device 910, a speaker 911, a wireless communication interface 912, and one or more antenna switches 915. It comprises one or more antennas 916, a bus 917, a battery 918 and an auxiliary controller 919.
[0195]
　The processor 901 may be, for example, a CPU or a SoC (System on Chip), and controls the functions of the application layer and other layers of the smartphone 900. The memory 902 includes RAM and ROM and stores programs and data executed by the processor 901. The storage 903 may include a storage medium such as a semiconductor memory or a hard disk. The external connection interface 904 is an interface for connecting an external device such as a memory card or a USB (Universal Serial Bus) device to the smartphone 900.
[0196]
　The camera 906 has, for example, an imaging element such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor), and generates a captured image. The sensor 907 may include a sensor group such as a positioning sensor, a gyro sensor, a geomagnetic sensor, and an acceleration sensor, for example. The microphone 908 converts a voice input to the smartphone 900 into a voice signal. The input device 909 includes, for example, a touch sensor that detects a touch on the screen of the display device 910, a keypad, a keyboard, a button or a switch, and receives an operation or information input from a user. The display device 910 has a screen such as a liquid crystal display (LCD) or an organic light emitting diode (OLED) display, and displays an output image of the smartphone 900. The speaker 911 converts the audio signal output from the smartphone 900 into audio.
[0197]
　The wireless communication interface 912 supports a cellular communication method such as LTE or LTE-Advanced and executes wireless communication. The wireless communication interface 912 may typically include a BB processor 913, an RF circuit 914, and the like. The BB processor 913 may perform, for example, encoding/decoding, modulation/demodulation, multiplexing/demultiplexing, and the like, and performs various signal processing for wireless communication. On the other hand, the RF circuit 914 may include a mixer, a filter, an amplifier, and the like, and transmits and receives a wireless signal through the antenna 916. The wireless communication interface 912 may be a one-chip module in which the BB processor 913 and the RF circuit 914 are integrated. The wireless communication interface 912 may include a plurality of BB processors 913 and a plurality of RF circuits 914 as shown in FIG. Although FIG. 12 shows an example in which the wireless communication interface 912 includes a plurality of BB processors 913 and a plurality of RF circuits 914, the wireless communication interface 912 includes a single BB processor 913 or a single RF circuit 914. But it is okay.
[0198]
　Further, the wireless communication interface 912 may support other types of wireless communication systems such as a short-range wireless communication system, a close proximity wireless communication system, and a wireless LAN (Local Area Network) system in addition to the cellular communication system, In that case, the BB processor 913 and the RF circuit 914 for each wireless communication system may be included.
[0199]
　Each of the antenna switches 915 switches the connection destination of the antenna 916 among a plurality of circuits (for example, circuits for different wireless communication systems) included in the wireless communication interface 912.
[0200]
　Each of the antennas 916 has a single or a plurality of antenna elements (for example, a plurality of antenna elements forming a MIMO antenna), and is used for transmitting and receiving radio signals by the radio communication interface 912. The smartphone 900 may have a plurality of antennas 916 as shown in FIG. Although FIG. 12 shows an example in which the smartphone 900 has a plurality of antennas 916, the smartphone 900 may have a single antenna 916.
[0201]
　Furthermore, the smartphone 900 may include an antenna 916 for each wireless communication method. In that case, the antenna switch 915 may be omitted from the configuration of the smartphone 900.
[0202]
　The bus 917 connects the processor 901, the memory 902, the storage 903, the external connection interface 904, the camera 906, the sensor 907, the microphone 908, the input device 909, the display device 910, the speaker 911, the wireless communication interface 912, and the auxiliary controller 919 to each other. .. The battery 918 supplies power to each block of the smartphone 900 shown in FIG. 12 via a power supply line partially shown by a broken line in the figure. The auxiliary controller 919 operates the minimum necessary functions of the smartphone 900 in the sleep mode, for example.
[0203]
　In the smartphone 900 shown in FIG. 12, one or more components (measurement reporting unit 241 and/or communication processing unit 243) included in the control unit 240 described with reference to FIG. 4 are implemented in the wireless communication interface 912. May be done. Alternatively, at least some of these components may be implemented in processor 901 or auxiliary controller 919. As an example, the smartphone 900 includes a module including a part (eg, the BB processor 913) or all of the wireless communication interface 912, the processor 901, and/or the auxiliary controller 919, and the one or more constituent elements in the module. May be implemented. In this case, the module stores a program for causing the processor to function as the one or more constituent elements (in other words, a program for causing the processor to execute the operation of the one or more constituent elements). You may run the program. As another example, a program for causing a processor to function as one or more components described above is installed in the smartphone 900, and the wireless communication interface 912 (for example, the BB processor 913), the processor 901, and/or the auxiliary controller 919 is included. You may run the program. As described above, the smartphone 900 or the module may be provided as an apparatus including the one or more components, and a program for causing the processor to function as the one or more components may be provided. A readable recording medium recording the above program may be provided.
[0204]
　Further, in the smartphone 900 illustrated in FIG. 12, for example, the wireless communication unit 220 described with reference to FIG. 4 may be implemented in the wireless communication interface 912 (for example, the RF circuit 914). The antenna unit 210 may be mounted on the antenna 916. The storage unit 230 may be implemented in the memory 902.
[0205]
　　　(Second Application Example)
　FIG. 13 is a block diagram showing an example of a schematic configuration of a car navigation device 920 to which the technology according to the present disclosure can be applied. The car navigation device 920 includes a processor 921, a memory 922, a GPS (Global Positioning System) module 924, a sensor 925, a data interface 926, a content player 927, a storage medium interface 928, an input device 929, a display device 930, a speaker 931 and wireless communication. Interface 933, one or more antenna switches 936, one or more antennas 937 and a battery 938.
[0206]
　The processor 921 may be, for example, a CPU or a SoC, and controls the navigation function and other functions of the car navigation device 920. The memory 922 includes RAM and ROM and stores programs and data executed by the processor 921.
[0207]
　The GPS module 924 measures the position (eg, latitude, longitude, and altitude) of the car navigation device 920 using GPS signals received from GPS satellites. The sensor 925 may include a sensor group such as a gyro sensor, a geomagnetic sensor, and a barometric pressure sensor, for example. The data interface 926 is connected to the vehicle-mounted network 941 via, for example, a terminal (not shown) and acquires data generated on the vehicle side such as vehicle speed data.
[0208]
　The content player 927 plays the content stored in the storage medium (eg, CD or DVD) inserted in the storage medium interface 928. The input device 929 includes, for example, a touch sensor that detects a touch on the screen of the display device 930, a button, or a switch, and receives an operation or information input from the user. The display device 930 has a screen such as an LCD or an OLED display, and displays a navigation function or an image of reproduced content. The speaker 931 outputs the navigation function or the sound of the reproduced content.
[0209]
　The wireless communication interface 933 supports a cellular communication system such as LTE or LTE-Advanced and executes wireless communication. The wireless communication interface 933 may typically include a BB processor 934, an RF circuit 935, and the like. The BB processor 934 may perform, for example, encoding/decoding, modulation/demodulation, multiplexing/demultiplexing, and the like, and perform various signal processing for wireless communication. On the other hand, the RF circuit 935 may include a mixer, a filter, an amplifier, and the like, and transmits and receives a wireless signal through the antenna 937. The wireless communication interface 933 may be a one-chip module in which the BB processor 934 and the RF circuit 935 are integrated. The wireless communication interface 933 may include a plurality of BB processors 934 and a plurality of RF circuits 935, as shown in FIG. 13. Although FIG. 13 shows an example in which the wireless communication interface 933 includes a plurality of BB processors 934 and a plurality of RF circuits 935, the wireless communication interface 933 includes a single BB processor 934 or a single RF circuit 935. But it's okay.
[0210]
　Furthermore, the wireless communication interface 933 may support other types of wireless communication systems such as a short-range wireless communication system, a close proximity wireless communication system, and a wireless LAN system in addition to the cellular communication system. A BB processor 934 and an RF circuit 935 for each communication method may be included.
[0211]
　Each of the antenna switches 936 switches a connection destination of the antenna 937 among a plurality of circuits (for example, circuits for different wireless communication systems) included in the wireless communication interface 933.
[0212]
　Each of the antennas 937 has a single or a plurality of antenna elements (for example, a plurality of antenna elements forming a MIMO antenna), and is used for transmitting and receiving radio signals by the radio communication interface 933. The car navigation device 920 may have a plurality of antennas 937 as shown in FIG. Although FIG. 13 shows an example in which the car navigation device 920 has a plurality of antennas 937, the car navigation device 920 may have a single antenna 937.
[0213]
　Further, the car navigation device 920 may include 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.
[0214]
　The battery 938 supplies power to each block of the car navigation device 920 shown in FIG. 13 via a power supply line partially shown by a broken line in the figure. Further, the battery 938 stores electric power supplied from the vehicle side.
[0215]
　In the car navigation device 920 shown in FIG. 13, one or more components (measurement reporting unit 241 and/or communication processing unit 243) included in the control unit 240 described with reference to FIG. May be implemented in. Alternatively, at least some of these components may be implemented in processor 921. As an example, the car navigation device 920 includes a module including a part (for example, the BB processor 934) or all and/or the processor 921 of the wireless communication interface 933, and the one or more components are mounted in the module. May be. In this case, the module stores a program for causing the processor to function as the one or more constituent elements (in other words, a program for causing the processor to execute the operation of the one or more constituent elements). You may run the program. As another example, a program for causing a processor to function as one or more components described above is installed in the car navigation device 920, and the wireless communication interface 933 (eg, BB processor 934) and/or the processor 921 executes the program. You may. As described above, the car navigation device 920 or the module may be provided as the device including the one or more constituent elements, and the program for causing the processor to function as the one or more constituent elements may be provided. Good. A readable recording medium recording the above program may be provided.
[0216]
　Further, in the car navigation device 920 shown in FIG. 13, for example, the wireless communication unit 220 described with reference to FIG. Z may be mounted in the wireless communication interface 933 (for example, the RF circuit 935). The antenna unit 210 may be mounted on the antenna 937. Further, the storage unit 230 may be implemented in the memory 922.
[0217]
　Further, the technology according to the present disclosure may be implemented as an in-vehicle system (or vehicle) 940 including one or more blocks of the car navigation device 920 described above, an in-vehicle network 941, and a vehicle-side module 942. The vehicle-side module 942 generates vehicle-side data such as vehicle speed, engine speed, or failure information, and outputs the generated data to the vehicle-mounted network 941.
[0218]
　<<5. Conclusion>>
　The one embodiment of the present disclosure has been described in detail above with reference to FIGS. 1 to 13. As described above, the base station device 100 according to the present embodiment can be shared by other operators to another base station device 100 operated by an operator different from the operator who operates the base station device 100. Of the resources, the base station apparatus 100 transmits the setting information of the guaranteed resources that can be used preferentially. By transmitting the setting information to the other base station device 100, the other base station device 100 limits the use of the guaranteed resource. Accordingly, the base station device 100 can preferentially use the guaranteed resource. In this way, it becomes possible for a plurality of base station devices operated by different operators to share radio resources while cooperating.
[0219]
　The preferred embodiments of the present disclosure have been described above in detail with reference to the accompanying drawings, but the technical scope of the present disclosure is not limited to such examples. It is obvious that a person having ordinary knowledge in the technical field of the present disclosure can come up with various changes or modifications within the scope of the technical idea described in the claims. Of course, it is understood that the invention also belongs to the technical scope of the present disclosure.
[0220]
　Further, the processes described in the present specification using the flowcharts and sequence diagrams do not necessarily have to be executed in the illustrated order. Some processing steps may be performed in parallel. In addition, additional processing steps may be adopted, and some processing steps may be omitted.
[0221]
　Further, the effects described in the present specification are merely illustrative or exemplary, and are not limiting. That is, the technique according to the present disclosure may have other effects that are apparent to those skilled in the art from the description of the present specification, in addition to or instead of the above effects.
[0222]
　The following configurations also belong to the technical scope of the present disclosure.
(1) The
　base station apparatus,
　wherein the other base station apparatus operated by a second operator different from the first operator operating the base station apparatus includes the first operator and the second operator. And a control unit that transmits first setting information of a first guaranteed resource that can be preferentially used by the base station device among radio resources that can be shared
with the base station device.
(2) In the
　above (1), the first setting information includes at least one of a time, a frequency of the first guaranteed resource, and information indicating a place where the setting of the first guaranteed resource is valid. The described base station device.
(3)
　The (1) or (2), wherein the first setting information includes information indicating a type of the first guaranteed resource, which corresponds to a signal transmitted/received using the first guaranteed resource. The base station device according to 1.
(4)
　The first setting information includes information indicating a type of the first guaranteed resource, which corresponds to an access procedure to the first guaranteed resource permitted by the other base station device, The base station device according to any one of (1) to (3).
(5)
　The base station device according to any one of (1) to (4), wherein the control unit includes the first setting information in a wireless signal and transmits the wireless signal to the other base station device.
(6)
　The base station apparatus according to any one of (1) to (5), wherein the control unit sets the first guaranteed resource and generates the first setting information.
(7) The
　control unit sets the first guaranteed resource based on a measurement result of a signal from the other base station device in a terminal device that communicates with the base station device. The described base station device.
(8)
　Based on a response from the other base station device indicating whether or not the base station device permits the first guaranteed resource to be preferentially used by the base station device, The base station device according to any one of (1) to (7), which controls transmission and reception of a signal in one guaranteed resource.
(9)
　The base station apparatus according to any one of (1) to (8), wherein the first guaranteed resource is preset.
(10)
　The first guaranteed resource is set according to any one of (1) to (9), which is set when a signal to be transmitted/received using the first guaranteed resource is generated. Base station equipment.
(11)
　The first guaranteed resource is set again when the base station device fails to use the first guaranteed resource, according to any one of (1) to (10) above. Base station equipment.
(12)
　The control unit receives, from the other base station device, second setting information of a second guaranteed resource that can be preferentially used by the other base station device among the wireless resources, and the received second The base station device according to any one of (1) to (11), wherein the use of the second guaranteed resource is restricted based on the setting information.
(13)
　The base station device according to (12), wherein when the wireless resource being used and the second guaranteed resource overlap, the control unit stops using the wireless resource in the overlapping portion.
(14)
　The base station device according to (13), wherein the control unit does not use the second guaranteed resource.
(15)
　The base station device according to (13), wherein the control unit uses the second guaranteed resource after performing carrier sense.
(16)
　The base station device according to any one of (12) to (15), wherein the control unit performs negotiation for setting the second guaranteed resource with the other base station device.
(17) The
　control unit transmits, to the other base station device, information indicating the wireless resource requesting not to be set as the second guaranteed resource or permitting setting as the second guaranteed resource. The base station apparatus according to (16) above.
(18)
　The base station device according to (16) or (17), wherein the control unit transmits information requesting a change of the second guaranteed resource to the other base station device.
(19)
　Communicate with a base station apparatus operated by the first operator using a radio resource that can be shared between a first operator and a second operator different from the first operator, A
terminal device comprising: a control unit that reports a measurement result of a signal from another base station device operated by a second operator to the base station device.
(20)
　A method executed by a
　base station device , wherein the first operator is assigned to another base station device operated by a second operator different from the first operator operating the base station device. Transmitting the first setting information of the first guaranteed resource that can be preferentially used by the base station device among the radio resources that can be shared with the second operator
.
Explanation of symbols
[0223]
　1 system
　11 cell
　20 core network
　30 PDN
　100 base station device
　102 component
　110 antenna unit
　120 wireless communication unit
　130 network communication unit
　140 storage unit
　150 control unit
　151 setting unit
　153 communication processing unit
　200 terminal device
　210 antenna unit
　220 wireless communication unit
　230 Storage unit
　240 Control unit
　241 Measurement reporting unit
　243 Communication processing unit
The scope of the claims
[Claim 1]
　Between
　the first operator and the second operator, another base station device operated by a second operator different from the first operator operating the base station device is provided. A base station device, comprising: a control unit that transmits first setting information of a first guaranteed resource that can be preferentially used by the base station device among wireless resources that can be shared by the
.
[Claim 2]
　The base station according to claim 1, wherein the first setting information includes at least one of time and frequency of the first guaranteed resource and information indicating a location where the setting of the first guaranteed resource is valid. apparatus.
[Claim 3]
　The base station apparatus according to claim 1, wherein the first setting information includes information indicating a type of the first guaranteed resource, which corresponds to a signal transmitted/received using the first guaranteed resource.
[Claim 4]
　The said 1st setting information contains the information which shows the kind of said 1st guaranteed resource corresponding to the access procedure to the said 1st guaranteed resource permitted by the said other base station apparatus. The described base station device.
[Claim 5]
　The base station apparatus according to claim 1, wherein the control unit includes the first setting information in a radio signal and transmits the radio signal to the other base station apparatus.
[Claim 6]
　The base station apparatus according to claim 1, wherein the control unit sets the first guaranteed resource and generates the first setting information.
[Claim 7]
　The base station according to claim 6, wherein the control unit sets the first guaranteed resource based on a measurement result of a signal from the other base station device in a terminal device that communicates with the base station device. apparatus.
[Claim 8]
　The controller guarantees the first guarantee based on a response from the other base station apparatus indicating whether or not the base station apparatus consents to preferential use of the first guaranteed resource by the base station apparatus. The base station device according to claim 1, which controls transmission and reception of signals in resources.
[Claim 9]
　The base station apparatus according to claim 1, wherein the first guaranteed resource is preset.
[Claim 10]
　The base station apparatus according to claim 1, wherein the first guaranteed resource is set when a signal to be transmitted/received using the first guaranteed resource is generated.
[Claim 11]
　The base station apparatus according to claim 1, wherein the first guaranteed resource is set again when the base station apparatus fails to use the first guaranteed resource.
[Claim 12]
　The control unit receives, from the other base station device, second setting information of a second guaranteed resource that can be preferentially used by the other base station device among the radio resources, and the second setting information is received. The base station apparatus according to claim 1, wherein the use of the second guaranteed resource is restricted based on the setting information.
[Claim 13]
　13. The base station apparatus according to claim 12, wherein the control unit suspends use of the wireless resource in the overlapping portion when the wireless resource being used and the second guaranteed resource overlap.
[Claim 14]
　The base station apparatus according to claim 13, wherein the control unit does not use the second guaranteed resource.
[Claim 15]
　The base station apparatus according to claim 13, wherein the control unit uses the second guaranteed resource after performing carrier sense.
[Claim 16]
　The base station device according to claim 12, wherein the control unit performs negotiation for setting the second guaranteed resource with the other base station device.
[Claim 17]
　The control unit transmits, to the other base station device, information indicating the radio resource that requests not to be set as the second guaranteed resource or that is allowed to be set as the second guaranteed resource. Item 16. The base station device according to Item 16.
[Claim 18]
　The base station apparatus according to claim 16, wherein the control unit transmits information requesting a change of the second guaranteed resource to the other base station apparatus.
[Claim 19]
　Using a radio resource that can be shared between a first operator and a second operator different from the first operator, the first operator communicates with a base station apparatus operated by the first operator, and the second operator A
terminal device comprising: a control unit that reports a measurement result of a signal from another base station device operated by an operator to the base station device.
[Claim 20]
　A method executed by a
　base station device, wherein the first operator and the second operator are provided to another base station device operated by a second operator different from the first operator who operates the base station device. Transmitting the first setting information of the first guaranteed resource that can be preferentially used by the base station device out of the radio resources that can be shared with the operator