[0001]The present disclosure relates to wireless communication systems and, more particularly, V2X services.
Background technique
[0002]
　Non-Patent Document 1 describes a Long Term Evolution (LTE) based Vehicle-to-Everything (V2X) use cases of service (use Cases) and potential requirements (potential requirements). V2X refers to the communication relating to the vehicle (vehicular communications), including Vehicle-to-Vehicle (V2V) communications, Vehicle-to-Infrastructure (V2I) communication, and Vehicle-to-Pedestrian (V2P) communication. V2V communication or V2V service is a communication or service between User Equipments (UEs) to use mounted on and V2V application to the vehicle. V2I communication or V2I service, both to mean a communication or service between UE and Road Side Unit (RSU) to use V2I application. Unless otherwise stated, V2I communication, including the Infrastructures-to-Vehicle (I2V) communication. Further, where the UE is, the vehicle UE not only includes pedestrian UE. RSU is an entity that is installed in the roadside, to support V2I services including transmission and reception between the vehicle UE using the V2I applications. RSU, the base station, such as LTE (i.e., Evolved Node B (eNB)) is mounted on or installation of UE (stationary UE). V2P communication or V2P service, both to mean a communication or service between the vehicle UE and pedestrian UE using the V2I application. V2P communication may be performed via the RSU, sometimes referred to as V2I2P communication or P2I2V communication.
[0003]
　It introduces several use cases of V2I services described in Non-Patent Document 1. Non-Patent Document 1, in section 5.6 V2I Emergency Stop Use Case, implements the vehicle and RSU both Prose-enabled UE, describes a configuration in which the vehicle and the RSU performs Proximity-based services (Prose) Communication . Prose communication is an example of a device-to-device (D2D) communication, including direct communication (direct Communication) between two or more Prose-enabled UEs close. In this use case, the vehicle A, for example sends a message indicating an event such as an emergency stop (emergency stop) the service RSU. Service RSU receives the message from the vehicle A, and relays the message to the surroundings of the vehicle. All vehicles located service RSU transmission range within can receive the message.
[0004]
　In the use case described in Non-Patent Document 1 sections 5.14 V2X Road safety service via infrastructure, RSU C detects that an accident has occurred in the area managed by itself, the occurrence of accidents remote server (Traffic and notifies the Safety server (TSS) or Intelligent Transport Systems (ITS) server) starts transmission to the area of ​​the information. Server, indicating that the accident has occurred in the area where RSU C managed near the RSUs of RSU C. Near RSUs starts transmission of V2X message indicating that an accident has occurred in the area indicated by the RSU C.
CITATION
Non-Patent Document
[0005]
Non-Patent Document 1: 3GPP S1-151330 "3GPP TR 22.885 V0.2.0 Study on LTE Support for V2X Services (Release 14)", 2015 dated years. 4
Summary of the Invention
Problems that the Invention is to Solve
[0006]
　Non-Patent Document 1 does not show a specific procedure for initiating V2X service. That is, the vehicle UE, pedestrians UE, or procedures to provision for V2X service is not clear for the UE to use V2X services such RSU with UE capabilities.
[0007]
　One of the goals to be achieved embodiments disclosed herein contributes device to the realization of the procedure to provision for V2X services to wireless terminals using V2X service, method, and program it is to provide a. Incidentally, this objective should embodiment disclosed herein is noted that only one of a plurality of objects to be achieved. Other objects or problems and novel features will become apparent from the description, or the accompanying drawings of this specification.
Means for Solving the Problems
[0008]
　In a first aspect, the base station device includes at least one radio transceiver and at least one processor. Wherein the at least one processor sends a V2X support information indicating that the Vehicle-to-Everything (V2X) service is supported by the serving network that includes the base station device via the at least one radio transceiver, the It is configured to transmit a V2X set in response to said first wireless terminal a V2X support information to the reception of V2X terminal information transmitted from the first wireless terminal that has received.
[0009]
　In a second aspect, a method in a base station apparatus, transmitting a V2X support information indicating that the Vehicle-to-Everything (V2X) service is supported by the serving network including (a) the base station apparatus, and (b) sending a V2X settings in response to receipt of V2X terminal information transmitted from the first wireless terminal receiving the V2X support information to said first wireless terminal, including.
[0010]
　In a third aspect, the wireless terminal includes at least one radio transceiver and at least one processor. Wherein the at least one processor is configured to receive a V2X support information indicating that the Vehicle-to-Everything (V2X) services are supported by the serving network from the serving network via the at least one radio transceiver, the V2X support sends V2X terminal information indicating an interest in the V2X service in response to receipt of information to the serving network, in response to the transmission of the V2X terminal information receives V2X setting transmitted from the serving network , and is configured to perform V2X communication according to the V2X setting.
[0011]
　In a fourth aspect, a method in a wireless terminal, receiving V2X support information indicating that the Vehicle-to-Everything (V2X) service is supported by (a) serving network from the serving network, (b) from the V2X be supported in response to receiving the information transmits the V2X terminal information indicating an interest in the V2X service to the serving network, and (c) the serving network in response to the transmission of the V2X terminal information receiving a V2X settings sent includes, performing V2X communication according to the V2X setting.
[0012]
　In a fifth aspect, the cellular communications network includes one or more base stations, and the controlling entity. Wherein one or more base stations are configured to transmit V2X support information indicating that the Vehicle-to-Everything (V2X) service is supported by the serial cellular communications network. The control entity, the V2X responsive support information from the first wireless terminal receiving the to reception of V2X terminal information transmitted, said first and V2X set via the one or more base stations It is configured to transmit to the radio terminal.
[0013]
　In a sixth aspect, a cellular method in a communication network, (a) said sending a V2X support information indicating that cellular communications network by Vehicle-to-Everything (V2X) services are supported by the base station, ( b) in response to a V2X terminal information transmitted from the first wireless terminal receiving the V2X support information received via the one or more base stations, wherein the V2X setting one or more base stations through comprising, for transmitting the control entity to the first wireless terminal.
[0014]
　In a seventh aspect, the program includes the when loaded into a computer, instructions for performing the method according to the second or fourth aspects described above to a computer (software code).
Effect of the invention
[0015]
　According to the above aspects, it can be provided which contributes device to the realization of the procedure to provision for V2X services to wireless terminals using V2X service, method, and program.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016]
Is a diagram illustrating a configuration example of a wireless communication system according to FIG. 1 embodiment.
Is a diagram illustrating a configuration example of a wireless communication system according to FIG. 2 embodiment.
It is a diagram illustrating an example of FIG. 3 Architecture / arrangement of a wireless communication system according to the embodiment (deployments).
Is a sequence diagram showing an example of the provisioning procedure for V2X service according to [4] embodiment.
5 is a sequence diagram showing an example of a handover procedure according to the embodiment.
It is a diagram showing a first example of message transfer in a wireless communication system according to FIG. 6 embodiment.
It is a diagram showing a second example of message transfer in a wireless communication system according to FIG. 7 embodiment.
It is a diagram showing a third example of message transfer in a wireless communication system according to [8] embodiment.
It is a diagram showing a fourth example of message transfer in a wireless communication system according to FIG. 9 embodiment.
Is a block diagram showing a configuration example of RSU and the base station according to FIG. 10 embodiment.
11 is a block diagram showing a configuration example of RSU and wireless terminal according to the embodiment.
12 is a block diagram showing a configuration example of the server and V2X controller according to the embodiment.
DESCRIPTION OF THE INVENTION
[0017]
　Hereinafter, specific embodiments will be described in detail with reference to the drawings. In the drawings, the same or corresponding components are denoted by the same reference numerals, for clarity of description, repeated explanation is omitted as appropriate.
[0018]
　The following embodiment shown in will be described an Evolved Packet System (EPS) that houses the LTE and SAE (System Architecture Evolution) as a main target. However, these embodiments are not intended to be limited to EPS, other mobile communication networks or systems, for example 3GPP UMTS, 3GPP2 CDMA2000 systems (1xRTT, HRPD (High Rate Packet Data)), global system for mobile communications ( GSM (TM)) / General packet radio service (GPRS) system, and may be applied to WiMAX systems.
[0019]

　FIG 1 shows a configuration example of a wireless communication system according to some embodiments including the first embodiment. Wireless terminal (UE) 100 ~ 102 is mounted on a vehicle. Vehicle UE 100 ~ 102, the vehicle processing unit (e.g., a car navigation system) may be implemented within. Vehicle UE 100 ~ 102 executes V2I applications to support V2I service. UE 100 ~ 102, the other V2X services, ie may support V2V service or V2P service or both.
[0020]
　RSU120 and 121 are installed in the roadside. In the example of FIG. 1, RSU120 is placed near the intersection 110. RSU120 and 121, such as but not limited, are respectively implemented Prose-enabled UE, may be carried out vehicle UE 100 ~ 102 and ProSe communications to provide V2I services. Incidentally, RSU120 and 121, ProSe UE-to-Network Relay (ie, Relay UE) may operate as a. ProSe UE-to-Network Relay mainly relays traffic (downlink and uplink) between the coverage outside the UE (remote UE) and the network. RSU120 and 121 communicates with the base station (eNB) 130 in the cellular communication network via a wireless connection, further communicates with the server 140 (eg, ITS servers or TSS) via the eNB 130.
[0021]
　As previously described, Proximity-based services as specified in 3GPP Release 12 (ProSe) is an example of D2D communication. D2D communication may include at least one of direct communication (Direct Communication) and direct discovery (Direct Discovery). In 3GPP Release 12, the radio link between the UE for use in direct communication or direct discovery is called PC5 interface or side links (Sidelink). Therefore, Prose can be said to be a general term for communication using at least Sidelink (or services). In the example of FIG. 1, the communication between the RSU120 and UE100 or 101 operating as a UE or Relay UE, and the communication between two or more UE may use side links. In 3GPP Release 12, the side link transmission, a subset of defined using the same frame structure as the Long Term Evolution (LTE) frame structure, the uplink resources in frequency and time domains for the uplink and downlink to use. In 3GPP Release 12, UE performs side links sent using the same single-carrier frequency division multiplexing (Single Carrier Frequency Division Multiple Access (SC-FDMA)) and uplink.
[0022]
　Server 140 is in communication with UE 100 ~ 102 and RSU120 and 121 supporting V2X service. More specifically, server 140, via the cellular communications network including a base station 130 communicates with V2X applications and application layers that run in each of the UE 100 ~ 102 and RSU120 and 121 (application level). In other words, the reference point between the UE 100 ~ 102 and the server 140 (reference point) may be dependent on the user plane of the cellular communications network, the signaling and data between the UE 100 ~ 102 and the server 140 on the user plane in may be transferred. Similarly, the reference point between the RSU120 and 121 and servers 140 may depend on the user plane of the cellular communication network.
[0023]
　Server 140 may be an ITS server or TSS. For example, server 140, in response to receiving the report information indicating the occurrence of any accident from RSU120, indicates when the accident has occurred in the area RSU120 managed nearby the RSU120 RSUs (eg, RSU121) it may be.
[0024]
　Further, in some implementations, in order to utilize the V2X services provided by the cellular communication network, UE 100 ~ 102 may communicate with V2X controller 150 via the base station 130 (and core network). Furthermore, even RSU120 and 121 operating as a UE, may communicate with V2X controller 150 via the base station 130 (and core network).
[0025]
　V2X controller 150 provides cellular communication network required for V2X service logical functions used in operations related to (ie, Public Land Mobile Network (PLMN)) a (logical function). For example, V2X controller 150 may perform authentication or authorization UE 100 ~ 102 for V2X service. V2X controller 150 may perform authentication or authorization RSU120 and 121 operating as a UE. V2X controller 150 may be referred to as a V2X function entity.
[0026]
　UE 100 ~ 102 (as well as RSU120 and 121) the reference point between the server 140 (reference point) or interface may depend on the user plane of a cellular communications network, UE 100 ~ 102 (as well as RSU120 and 121) and the server signaling and data between the 140 may be transferred over the user plane.
[0027]
　Figure 2 shows another example of a configuration of a radio communication system according to some embodiments including the first embodiment. In the example of FIG. 2, each of RSU220 and 221 operates as a base station (eNB).
[0028]
　In the configuration of FIGS. 1 and 2, some or all of the UE 100 ~ 102 may be a pedestrian UE. Further, in the configuration of FIGS. 1 and 2, the server 140 may be collocated on the same site with RSU220 or 221 operating as eNB130 or eNB. Such servers are called Mobile Edge Computing (MEC) server. Alternatively, the server 140 is remotely located site geographically separated from the site of eNB 130 (or RSU220 or 221), one or more entities in a cellular communications network (eg, Mobility Management Entity, Packet Data Network Gateway (P-GW), and Serving Gateway (S-GW)) may communicate with eNB130 through.
[0029]
　Figure 3 is a diagram illustrating an example architecture / arrangement of a wireless communication system according to some embodiments including the first embodiment (deployments). As described with reference to FIGS. 1 and 2, is RSU120 and 121 In some implementations a function of UE, the RSU220 In other implementations having the functions of eNB. That is, in some implementations, UE supporting V2X service (eg, UE 100) may communicate with the server 140 via the path 361 through the RSU120 and eNB130 operating as UE. Additionally or alternatively, in some implementations, as indicated by the path 362 in FIG. 3, UE (eg, UE100) is directly connected to the eNB130 not through the RSU120, to communicate with the server 140 be able to. Additionally or alternatively, in some implementations, as indicated by the path 363 in FIG. 3, UE (eg, UE100) is connected to RSU220 operating as eNB, communicates with the server 140 via the RSU220 be able to.
[0030]
　Communication 351 between RSU120 the eNB130 operating as UE may use V2X separate reserved for service (dedicated) carrier frequency band f1. Alternatively, the communication 351, the shared frequency band is shared by any operator even unlicensed or more operators (Shared frequency band, Shared spectrum) may be used f2. Communication using such shared frequency is also referred to Licensed Shared Access (LSA). Alternatively, the communication 351 may use the carrier frequency band f3 licensed to the operator of the cellular communication network. Similar to communication 351, even communication 354 between the UE 100 and the RSU communication 353 between the communications 352, UE 100 during (UE) 120 and eNB 130, and operates as a UE 100 and eNB RSU220, the frequency band f1 as described above, f2 , and it may use any of f3. Furthermore, (not shown) communicating between the UE may also use any of the frequency bands f1, f2, and f3 as described above.
[0031]
　Then, in following, a description will be given of provisioning procedure of V2X services. Figure 4 is a sequence diagram illustrating a process 400 which is an example of the provisioning procedure. Network 410 includes at least eNB130 in the configuration example of FIG. 1, in the configuration example of FIG. 2 includes a RSU220 operating as at least eNB. Network 410 may further include a V2X controller 150.
[0032]
　In step 401, the network 410 transmits a V2X support information indicating that V2X service is supported by the serving network comprising eNB 130 (cellular communication network) (V2X Support Information). V2X support information is transmitted by RSU220 operating as eNB130 or eNB. Furthermore, V2X support information may be transmitted by RSU operating as UE. In this case, RSU may be broadcast to some or all of V2X support information received from the eNB 130, may be a group casting.
[0033]
　V2X support information, (a) V2X that service is available, (b) V2X carrier frequency band used for the service, (c) measurement setting of the carrier frequency band used for V2X service (measurement configuration), (d) supported V2X service type (eg, V2V, V2I, V2P), and (e) V2X permitted transmission power to the wireless terminal for the service, may indicate at least one of. Incidentally, (a) V2X that service is available, may be implicitly indicated by the V2X support information is transmitted. Further, (b) with V2X carrier frequency band used for the service, the network identifier (eg, PLMN identity list) which V2X service is provided or the area identifier (eg, V2X area list) may be transmitted.
[0034]
　Additionally or alternatively, V2X support information may indicate a radio resource pool to be used for spontaneous resource selection (autonomous resource selection) for V2X services by each UE. The radio resource pool, each type of 1 or more V2X services contained in V2X service (eg, V2V, V2I, V2P), RSU V2X operation mode of operating as UE (eg, a relay mode, direct mode) each, V2X service area each, each device type UE (eg, RSU, Vehicle, Pedestrian), or preset for each category may include a radio resource pool (eg, speed, (moving) direction of travel lane). The radio resource pool may be set for each carrier frequency band V2X service is performed.
[0035]
　Additionally or alternatively, V2X support information may include synchronization settings for V2X.
[0036]
　eNB130 or RSU (eNB) 220, as at least an idle state (eg, RRC_IDLE) a plurality of UE of can receive V2X support information, broadcast V2X support information in the cell provided by eNB130 or RSU (eNB) 220 it may be. eNB130 or RSU (eNB) 220 may transmit a V2X support information on the broadcast control channel (Broadcast Control Channel (BCCH)) carrying the System Information Block (SIB).
[0037]
　eNB130 or RSU (eNB) 220, the first carrier frequency band a second carrier frequency band used for (eg, licensed frequency band f3 to the cellular operator) and V2X services (eg for use in cellular communications, it may transmit the V2X support information at both the individual frequency bands f1) for V2X. In some implementations, if V2X support information is transmitted in both of these two frequency bands, one frequency band information and the other frequency band to be transmitted in (eg, the frequency band f3 licensed cellular operator) it may be given priority over the information sent in (eg, individual frequency band f1 for V2X).
[0038]
　In some implementations, if the UE 100 is present outside the coverage of the cellular communications network (out-of-coverage), UE100 may use V2X support information sent in a separate frequency band f1 for V2X. For example, RSU (UE) 120 receives a V2X support information transmitted from the eNB 130, to the V2X support information (at least part of) may broadcast or group cast in separate frequency band f1 for V2X services , may be transferred to the UE100 (relay). Alternatively, UE 100 may use the settings stored in advance (eg, pre-configured radio resources for V2X).
[0039]
　In step 402 of FIG. 4, UE 100 or RSU120, in response to receipt of V2X support information, and transmits V2X terminal information indicating an interest in V2X service, i.e. V2X UE information (V2X UE Information) to the network 410 .
[0040]
　V2X UE information support (a) UE 100 or RSU120 that are interested in V2X service, (b) UE 100 or RSU120 may wish to use the V2X services, for (c) UE 100 or RSU120 is V2X Service and which frequency bands, (d) UE 100 or RSU120 frequency band that can be used for serial V2X service, (e) UE 100 or V2X service type RSU120 is of interest (eg, V2V, V2I, V2P), and (f ) UE 100 or RSU120 device types (eg, RSU, Vehicle, Pedestrian), it may indicate at least one of.
[0041]
　Additionally or alternatively, V2X UE information may include RSU display (RSU indication). RSU display, the source UE indicates whether RSU. Further RSU representation may include a type of RSU. Type of the RSU, the type of road RSU is installed (eg, inbound lane, the outbound lane, underpass, on elevated ground, underground, general roads, or highways) may indicate. Incidentally, RSU displayed on the Mobility Management Entity (MME) eNB (ie, eNB130 or RSU (eNB) 220), may be transmitted using the E-RAB SETUP REQUEST message or INITIAL CONTEXT SETUP REQUEST message.
[0042]
　Incidentally, V2X UE information, control connection between eNB130 or RSU (eNB) 220 may be sent in establishment procedure (eg, Radio Resource Control (RRC) Connection). For example, the UE100 or RSU120, in the RRC connection establishment procedure, may transmit V2X UE information using the RRC Connection Setup Complete message, or UE capability data Signaling. Incidentally, if the RSU (UE) 120 transmits a V2X UE information (eg, RSU display), eNB 130 is INITIAL UE MESSAGE message or E-RAB SETUP RESPONSE message S1AP, indicating that the message is about RSU information (eg, RSU Indicator) may be sent to the MME.
[0043]
　In step 403 of FIG. 4, the network 410 (eg, eNB130, RSU220, or V2X controller 150) is transmitted in response to receipt of V2X UE information from UE100 or RSU120, V2X configure (V2X Configuration) to UE100 or RSU120 to. For example, V2X setting may be transmitted using RRC Connection Reconfiguration message. Generation of V2X settings based on V2X UE information transmitted from UE100 or RSU120 may be performed by RSU220 operating as eNB130 or eNB, may be performed by V2X controller 150. UE100 or RSU120 receives V2X settings sent from the network 410, performs V2X communication according to the V2X settings.
[0044]
　Incidentally, V2X set (V2X configuration) is any of the individual reserved for V2X service carrier frequency band f1, shared frequency band f2, and carrier frequency band f3 licensed to the operator of the cellular communications network for LSA it may be transmitted. Furthermore, V2X setting may be transmitted from RSU120. For example, RSU (UE) 120 receives a V2X settings sent from the eNB 130, to the V2X set (at least part of) may be groups cast individual frequency band f1 for V2X service, transfers to the UE100 it may be (relay).
[0045]
　In some implementations, V2X setting may indicate measurement settings of the carrier frequency band used for V2X service. In some implementations, V2X set may include a radio resource configuration for V2X service. The radio resource configuration may include either or both of Setting and signaling radio bearer data radio bearer (Data Radio Bearer (DRB)) (Signalling Radio Bearer (SRB)). DRB set may include at least one of the elements listed below:
· Multimedia Broadcast / Multicast Setting Service Physical Multicast Channel for (MBMS) (PMCH);
· Single Cell Point-to Multi-point ( Physical Downlink Shared Channel setting (PDSCH) for-PTM SC);
· Logical Channel ID (LCID); and
· E-UTRAN Radio Access Bearer ( E-RAB) identity.
[0046]
　Additionally or alternatively, V2X setting may indicate a radio resource pool to be used for spontaneous resource selection for V2X service with UE100 or RSU120. V2X setting may indicate the allocation of dedicated radio resources for V2X services to UE100 or RSU120.
[0047]
　For example, network 410, in response to the source UE receives a V2X UE information including RSU display indicating that the RSU from RSU120, V2X set indicating the allocation of radio resources reserved for the RSU the may be sent to the RSU120. Or, a network 410, in response to the host device (eg, MME) of the network 410 subordinate device from (eg, eNB) to the target UE receives a notification indicating that the RSU, is reserved for RSU and the V2X set indicating the allocation of radio resources may be transmitted to the RSU120. Thus, the network 410 is able to distinguish RSU120 operating as UE from the normal UE 100, operation radio resources (eg, frequency) assigned to the normal UE 100 radio resources (eg, frequency) different from the as UE it can be assigned to RSU120.
[0048]
　Additionally or alternatively, network 410, RSU120 may send any RSU setting indicating whether to operate the (RSU Configuration) to RSU120 as RSU. RSU set may be transmitted in RRC Connection Reconfiguration message. Furthermore, RSU set may include at least a portion of V2X settings. Furthermore, RSU settings, RSU120 is V2X report message to the network (eg, eNB) as a Relay UE should be sent to, or RSU120 network (eg, eNB) in response to receiving the V2V message as V2X UE to have to be sent V2X report message, may be shown by implicitly or explicitly RSU120 the. If implicitly indicate, RSU120 may be determined by whether including radio resource configuration information (eg Radio Resource Configuration) required for RSU configuration works as Relay UE. For example, it operates as RSU120 the Relay UE Once contains the radio resource configuration information, if not contain the radio resource configuration information RSU120 may act as V2V UE. Also, as expressly shown, RSU set may indicate the operating mode of the RSU. Mode of operation, for example, Relay UE mode, or the like V2V UE mode.
[0049]
　Here, the area where the same V2X set (V2X configuration) is applied may be defined as a V2X service area (V2X Service Area (SA)). V2X SA may be defined in any of V2X individual carrier frequency band that is reserved for service f1, shared frequency band for the LSA f2, and carrier frequency band f3 licensed to the operator of the cellular communication network. For example, a cell is defined by a frequency band f3, V2X SA may be defined in the frequency band f1 or f2. V2X SA may be defined independently of the cell may be defined in association with the cell. In the former case, it may be present multiple V2X SA to within a single cell spans multiple cells (i.e., at least partially cover each of the plurality of cells) one V2X SA are present it may be. In the latter case, one V2X SA may be defined by a combination of one cell or multiple cells. Further, when the UE moves between cells (cell reselection or executing handover) belonging to the same V2X SA, the UE can may be continued without interrupting V2X service, cell reselection or a handover execution suspend, but this may be as soon as you complete resume. That, V2X SA can be considered as "Valid area" of V2X settings. V2X SA of information (eg, V2X SA Index (ID)) may be transmitted as one information element of (IE) included in V2X setting, it may be transmitted in a separate message or signaling and V2X set. For example, to send a V2X set in the frequency band f3 is eNB130 or RSU (eNB) 220, it may include information for V2X SA. In this case, further, RSU (UE) 120 may transmit information V2X SA in the frequency band f1 or f2. RSU (UE) 120 may be broadcast or group cast information V2X SA, it may be transferred to the UE 100 (relay).
[0050]
　According to the procedure as reference to description of FIG 4, it is possible to provision needed to RSU120 operating as UE100 or UE initiates a V2X service.
[0051]

　In the present embodiment, specific examples of the handover of UE supporting V2X services are described. In the example shown in FIG. 1, UE 100 may perform handover to the target cell provided by eNB130T from a source cell provided by ENB130S. Similarly, in the example shown in FIG. 2, UE 100 may perform handover from the source cell provided by RSU (eNB) 220 to a target cell that is provided by the RSU (eNB) 221.
[0052]
　Figure 5 is a sequence diagram illustrating a process 500 which is an example of a handover procedure according to the present embodiment. In step 501, UE 100 is connected to a source ENB130S (or RSU220), it is performed V2X service (V2X communication). In step 502, UE 100 transmits a measurement report to a source ENB130S (or RSU220). The measurement report is sent when the measured value by the UE100 met the predetermined handover event conditions.
[0053]
　In step 503, the source ENB130S (or RSU220) determines the handover UE100 based on the measurement report, and sends V2X Show (V2X indication) encompassing handover request to the target ENB130T (or RSU221). V2X display is, that the UE100 is interested in V2X services, that you are permitted to use the V2X services, it is certified for V2X services, and it is approved for V2X services, out of the exhibits at least one.
[0054]
　In step 504, the target ENB130T (or RSU221), in response to receiving the handover request, sends a handover response indicating that accept handover (Handover Request ACK) to the source ENB130S (or RSU220). The handover response includes a V2X settings for the target cell the target ENB130T (or RSU221) is provided.
[0055]
　In step 505, the source ENB130S (or RSU220), in order to instruct the handover to the target cell to UE 100, transmits a handover command including V2X settings for the target cell (RRC Connection Reconfiguration message). V2X settings, V2X services, or include the target cell (which is or encompassed) V2X service area information is provided in the target cell may contain (eg, V2X SA Index (ID)).
[0056]
　In step 506, in response to receiving a handover command (RRC Connection Reconfiguration message), UE 100 performs switching to the target ENB130T (or RSU221). That, UE 100 establishes synchronization with the target cell by performing a random access procedure to the target ENB130T (or RSU221), confirming handover message (Handover Confirm) (RRC Connection Reconfiguration Complete message) to the target ENB130T (or RSU221) Send.
[0057]
　In step 507, UE 100 transmits a V2X UE information to the target ENB130T (or RSU221). Incidentally, V2X UE information UE100 may be sent from the source ENB130S (or RSU220) to the target ENB130T (or RSU221) in step 503. In this case, transmission of V2X UE information at step 507 may be omitted.
[0058]
　In step 508, UE 100 performs V2X service (V2X communication) in the target cell provided by the target ENB130T (or RSU221).
[0059]
　As described above, in this embodiment, the source ENB130S (or RSU220) is configured to send the V2X display (V2X indication) the handover preparation procedure to the target ENB130T (or RSU221) (ie, step 503) relates to UE100 . Further, the target ENB130T (or RSU221), when receiving a handover request including V2X display (V2X indication), sends a V2X setting the target cell source ENB130S (or RSU220) a handover preparation procedure (ie, step 504) in It is configured. Therefore, according to the handover procedure according to the present embodiment, UE 100 may be after the handover also continue V2X service. It should be noted, UE100 may be continued during the execution of the handover also V2X services. For example, if the same V2X service handover target cell (or ENB130T) and the source cell (or ENB130S) is provided, or if the target cell and the source cell are in the same V2X service area (V2X SA), the UE100 V2X services may be continued.
[0060]

　In the present embodiment, some specific examples of message transfer for V2X are described. Figure 6 shows a first example of message transfer. In the example of FIG. 6, RSU (UE) 120, in response to receiving a notification 660 from the vehicle UE 100, generates V2X report information (V2X report information) 670 based on the notification 660, V2X report information 670 generated the through the eNB130 sent to the server 140.
[0061]
　For example, RSU (UE) 120 analyzes the content of the notification 660 at the application layer (or detection) may generate a V2X report information 670 including the content of the notification 660. RSU (UE) 120 is (for example, the content is predetermined categories of notification 660, a group, or when referring to the service) if the content of the notification 660 satisfies a predetermined condition may transmit V2X report information 670 .
[0062]
　Alternatively, RSU (UE) 120 is the layer 2 header used to send notifications 660 Content type of notification 660 using (eg, Medium Access Control (MAC) header) (e.g., category, group, or services) detects may transmit V2X report information 670 when it detects the predetermined content types.
[0063]
　Notification 660, for example, messages about emergency stop (emergency stop) or accident of the vehicle UE100 is mounted, messages about the running condition of the vehicle, or around the road conditions (eg, congestion, weather, accidents, obstacles on the road ) or a message on, but not limited thereto. UE100 may be included in another vehicle messages derived V2V message or future received from (UE) notifies 660 via V2V communications. The notification 660 may be a V2V message sent to the other (unspecified) UE from UE 100, RSU (UE) 120 may receive the V2V message as a notification 660. Alternatively, the notification 660 individual message directed from UE100 to RSU (UE) 120 (eg, Uu UL) may be, RSU (UE) 120 may receive the individual message as a notification 660 .
[0064]
　Incidentally, RSU (UE) 120 is independent of the reception of the notification 660 from the vehicle UE 100, may be generated autonomously V2X report information 670. For example RSU (UE) 120 is road conditions of the camera and the management area by using a sensor such as weather meter (eg, congestion, weather, accidents, obstacles on the road) monitor, on the basis of the monitoring result V2X the report information 670 may be generated.
[0065]
　In some implementations, RSU (UE) 120 may be transmitted to the server 140 at V2X report information 670 a user plane (U-plane). In this case, eNB 130 may (transparently) simply V2X report information 670 may be transferred. Alternatively, in some implementations, RSU (UE) 120 may transmit a V2X report information 670 in the control plane (C-plane). In this case, eNB 130, in response to receipt of V2X report information 6700 from the RSU (UE) 120, generates a V2X report message including the V2X report information 670 (V2X report message), the generated V2X report message it may be transmitted to the server 140. eNB130 may may transmit the V2X report message control plane (C-plane) be sent in the user plane (U-plane).
[0066]
　Server 140, in response to receipt of V2X report information 670 from the RSU (UE) 120, generates a V2X control message 680 based on the V2X report information 670. V2X control message 680, for example, road condition warnings (eg, accidents or traffic jams), or may include a bypass path guiding. Server 140, a plurality of vehicles UE including vehicle UE 100 ~ 102 is to be able to receive a V2X control message 680, sends a V2X control message 680. In the example of FIG. 6, V2X control message 680 is sent from the server 140 via the eNB130 the RSU (UE) 120 and 121, are transmitted to the vehicle UE 100 ~ 102 by the RSU (UE). Each RSU may be transmitted to each UE a V2X control message 680 by unicast, the group cast V2X control message 680 to a plurality of UE, multicast, or may broadcast. Groupcast referred to herein is, for example, the receiving side (eg, UE), it is determined whether or not the information to be received by a predetermined filtering process, if the information to be received is a communication to restore the information it may be. Predetermined filtering, for example, UE has to recover the group identifier inserted in the layer 2 header may include that it be determined whether a group identifier to be received. The group identifier may be set to the receiving side in advance (eg, UE), the transmission side (eg, eNB, an application server) may be notified from. Moreover, group identifier, a given group (eg, UE group) may be the information indicating, it may be V2X SA Index (ID).
[0067]
　Second example shown in FIG. 7 shows the distribution path different V2X control message 680 to the delivery path shown in FIG. In the example of FIG. 7, V2X control message 680, without going through the RSU (UE) 120 and 121, are transmitted directly to the vehicle UE 100 ~ 102 from eNB 130. For example, eNB 130, to allow a plurality of receiving UE is located in the cell to which it provides may broadcast / multicast V2X control message 680.
[0068]
　In some implementations, eNB 130 may send a V2X control message 680 in the user plane (U-plane). Specifically, eNB 130 can broadcast bearer, multicast bearer, or Point-to-Multipoint a (PTM) bearer may transmit a V2X control message 680 with. V2X control message 680, data radio bearer for carrying the MBMS data, that is, it may be transmitted in MBMS Radio Bearer (MRB) or Point-to-Multipoint (PTM) Radio Bearer on. In MBMS, the same data (message) is transmitted via a common MRB (or PTM radio bearer) to a plurality of UEs.
[0069]
　Alternatively, in some implementations, eNB 130 may send a V2X control messages 680 in the control plane (C-plane). eNB130 may send a V2X control message 680 on a broadcast control channel (Broadcast Control Channel (BCCH)) carrying the System Information Block (SIB). For example, LTE / Evolved Packet System for CBS in (EPS) Public Warning System (PWS) may be utilized. 3GPP is, as PWS, used in the Japan Earthquake and Tsunami Warning System (ETWS), Commercial Mobile Alert System to be used in North America (CMAS), used in the Korean Public Alert System (KPAS), and European countries to be used in Korea EU It is normalized -ALERT. In PWS, alert message (Primary Notification and Secondary Notification) is transmitted in SIB 10 and SIB 11. In the case where V2X control message 680 is sent by the C-plane, it may be transmitted to the eNB130 via the MME from the server 140. In this case, in WRITE-REPLACE WARNING REQUEST message, V2X control message may be transmitted.
[0070]
　Figure 8 shows a third example of message transfer. In the example of FIG. 8, RSU120 and 121, ProSe UE-to-Network Relay (ie, Relay UE) operates as. ProSe UE-to-Network Relay RSU120 and 121 to operate as (Relay UE) is transmitted without terminating the application layer the vehicle UE100 (ProSe Remote UE). Thus, in the example of FIG. 8, RSU 100 transfers V2X report information 870 of the application layer received from the vehicle UE100 to eNB 130. That, V2X report information 870 from the vehicle UE100 is relayed by RSU120 and eNB130 as Relay UE, finally reaches the server 140. Server 140, in response to receipt of V2X report information 870, generates a V2X control message 880, and transmits it to the plurality of UE 100 ~ 102. V2X control message 880, via the eNB130 and RSU120 or 121, may be transmitted to a plurality of UE 100 ~ 102. Alternatively, as in the second example described with reference to FIG. 7, V2X control message 880, without going through the RSU10 and 121, it may be directly transmitted to a plurality of UE 100 ~ 102 from eNB 130.
[0071]
　Figure 9 shows a fourth example of message transfer. In the example of FIG. 9, each of RSU220 and 221 operates as a base station (eNB). RSU (eNB) 220, in response to receiving a notification 960 from the vehicle UE 100, generates V2X report information 970 based on the notification 960 and sends V2X report information 970 generated in the server 140. Here, the notification 960, individual message (eg, Uu UL) from UE100 to RSU (eNB) may be the, or at V2V message. Further, RSU (eNB) 220 may transmit a V2X report information 970 in control plane (C-plane) may be sent in the user plane (U-plane).
[0072]
　Server 140, in response to receipt of V2X report information 970 from the RSU (eNB) 220, generates a V2X control message 980 based on the V2X report information 970. As in the example of FIG. 6 and FIG. 7, server 140, a plurality of vehicles UE including vehicle UE 100 ~ 102 is to be able to receive a V2X control message 980, it sends a V2X control message 980. However, in the example of FIG. 9, V2X control message 980 is sent from the server 140 to the RSU (eNB) 220 and 221, it is transmitted to the vehicle UE 100 ~ 102 by the RSU (eNB). RSU (eNB) 220 and 221, like the eNB130 shown in FIG. 7, a V2X control message 980 may be transmitted may be transmitted at U-plane in C-plane.
[0073]
　6 to 9, an example in which V2X control messages 680,880, and 980 are received by a plurality of vehicles UE 100 ~ 102. However, V2X control messages 680,880, and 980 may be received by a pedestrian (pedestrian UE). Further, the information to be received vehicle UE a V2X control message comprises information pedestrian UE should receive, each UE may be adapted to extract the information to be received by performing filtering. Furthermore, different V2X control message pedestrian UE for a vehicle UE for the different transmission mode, respectively (eg, U-plane, C-plane) may be transmitted with.
[0074]
　Incidentally, examples of the plurality of message transfer shown in FIGS. 6-9 may be tried in combination. That is, in order from the vehicle UE100 the transfer of messages to the server 140, the three paths shown in FIG. 3 361, 362 and 363 either may be used. Similarly, in order from the server 140 of message transfer to the vehicle UE 100, 3 two paths shown in FIG. 3 361, 362 and 363 either may be used.
[0075]
　If RSU (eNB) 220 shown in RSU (UE) 120 and eNB 130 and 9 shown in FIG. 6 are used together, eNB 130 is between base stations V2X report information 670 interface (eg, X2 interface ) may be transferred to the RSU (eNB) 220 via. Further, eNB 130 is a base between stations interface V2X control message 680 (eg, X2 interface) may be transferred to the RSU (eNB) 220 via.
[0076]
　Then, in the following, UE 100 ~ 102 has been described in several embodiments above, RSU120 and 220, eNB 130, server 140, and illustrating an example of the configuration of V2X controller 150. Figure 10 is a block diagram showing a configuration example of eNB 130. May have the same configuration as RSU220 also Figure 10 configured to operate as eNB. Referring to FIG. 10, eNB 130 includes an RF transceiver 1001, a network interface 1003, a processor 1004, and memory 1005. RF transceiver 1001 performs an analog RF signal processing to communicate with the UEs. RF transceiver 1001 may include a plurality of transceivers. RF transceiver 1001 is coupled to antenna 1002 and the processor 1004. RF transceiver 1001 receives the modulated symbol data (or OFDM symbol data) from the processor 1004, generates a transmission RF signal and provides a transmit RF signal to the antenna 1002. Also, RF transceiver 1001 to generate a baseband received signal based on the reception RF signal received by an antenna 1002, and supplies it to the processor 1004.
[0077]
　Network interface 1003, network node (eg, other eNBs, Mobility Management Entity (MME), Serving Gateway (S-GW), and TSS or ITS servers) is used to communicate with. Network interface 1003 may include, for example, a network interface card that complies with the IEEE 802.3 series (NIC).
[0078]
　The processor 1004, performs data plane processing and control plane processing including digital baseband signal processing for wireless communication. For example, in the case of LTE and LTE-Advanced, a digital baseband signal processing by the processor 1004, PDCP layer, RLC layer may include a signal processing of the MAC layer, and the PHY layer. Further, the signal processing by the processor 1004 may include signal processing GTP-U · UDP / IP layer in the X2-U interface and S1-U interface. The control plane processing by the processor 1004, X2AP protocol may include a process of S1-MME protocol and the RRC protocol.
[0079]
　Processor 1004 may include multiple processors. For example, the processor 1004 is a modem processor that performs digital baseband signal processing (eg, DSP), X2-U interface and S1-U interface of the GTP-U · UDP / IP layer processor for performing signal processing (eg, DSP), and a protocol stack processor for performing control plane processing (eg, may include a CPU or MPU).
[0080]
　Memory 1005 is constituted by a combination of volatile and nonvolatile memory. Memory 1005 may include a physically independent plurality of memory devices. Volatile memory may be, for example, Static Random Access Memory (SRAM) or Dynamic RAM (DRAM) or a combination thereof. The non-volatile memory, a mask Read Only Memory (MROM), Electrically Erasable Programmable ROM (EEPROM), flash memory, or hard disk drive, or any combination thereof. Memory 1005 may include a storage that is remotely located from the processor 1004. In this case, the processor 1004 may access the memory 1005 via the I / O interfaces that are not network interface 1003 or illustrated.
[0081]
　Memory 1005 may store software modules (computer program) including instructions and data for processing by eNB130 described in several embodiments described above. In some implementations, the processor 1004, the software module that executes from the memory 1005 may be configured to perform processing of eNB130 described in the above embodiments.
[0082]
　Figure 11 is a block diagram showing a configuration example of a RSU120 operating as UE (or Relay UE). UE 101 ~ 102 also may have a configuration similar to that of FIG. 11. Radio Frequency (RF) transceiver 1101 performs an analog RF signal processing to communicate with the eNB 130. Analog RF signal processing performed by the RF transceiver 1101 includes a frequency up-conversion, the frequency down-conversion, and amplification. RF transceiver 1101 is coupled to antenna 1102 and the base band processor 1103. That, RF transceiver 1101 receives the modulated symbol data (or OFDM symbol data) from the baseband processor 1103, generates a transmission RF signal and provides a transmit RF signal to the antenna 1102. Also, RF transceiver 1101 to generate a baseband received signal based on the reception RF signal received by an antenna 1102, and supplies it to the baseband processor 1103.
[0083]
　Baseband processor 1103 performs control plane processing and digital baseband signal processing for wireless communication (data plane processing). Digital baseband signal processing, (a) data compression / decompression, (b) segmentation / concatenation of data, generation / decomposition of (c) transmission format (transmission frame), (d) transmission channel coding / decoding , including generation of (e) modulation (symbol mapping) / demodulation, and OFDM symbol data by (f) Inverse Fast Fourier Transform (IFFT) (baseband OFDM signal). On the other hand, the control plane processing, layer 1 (eg, transmission power control), Layer 2 (eg, radio resource management, and hybrid automatic repeat request (HARQ) process), and layer 3 (eg, attach, mobility and call management including communication management signaling) related.
[0084]
　For example, in the case of LTE and LTE-Advanced, a digital baseband signal processing by a baseband processor 1103, Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer, includes a signal processing of the MAC layer, and a PHY layer But good. Further, the control plane processing by baseband processor 1103, Non-Access Stratum (NAS) protocol, RRC protocol, and may include a process of MAC CE.
[0085]
　Baseband processor 1103, a modem processor that performs digital baseband signal processing (eg, Digital Signal Processor (DSP)) and protocol stack processor for performing control plane processing (eg, Central Processing Unit (CPU), or Micro Processing Unit it may include (MPU)). In this case, the protocol stack processor for performing control plane processing may be shared with an application processor 1104 which will be described later.
[0086]
　The application processor 1104, CPU, MPU, also referred to as a microprocessor or processor cores. The application processor 1104 may include a plurality of processors (multiple processor cores). The application processor 1104, a memory 1106 or illustrated which do not result system read from the memory a software program (Operating System (OS)) and various application programs (e.g., call application, WEB browser, a mailer, a camera operation application, music playback by running the application), to implement the various functions of RSU120.
[0087]
　In some implementations, as indicated by the dashed line (1105) in FIG. 11, the baseband processor 1103 and an application processor 1104 may be integrated on a single chip. In other words, the baseband processor 1103 and an application processor 1104 may be implemented as a single System on Chip (SoC) device 1105. SoC devices, sometimes referred to as system Large Scale Integration (LSI) or chipset.
[0088]
　Memory 1106 is a volatile memory or nonvolatile memory, or a combination thereof. Memory 1106 may include a physically independent plurality of memory devices. Volatile memory may be, for example, Static Random Access Memory (SRAM) or Dynamic RAM (DRAM) or a combination thereof. The non-volatile memory, a mask Read Only Memory (MROM), Electrically Erasable Programmable ROM (EEPROM), flash memory, or hard disk drive, or any combination thereof. For example, memory 1106, a baseband processor 1103, an application processor 1104, and may contain accessible external memory device from SoC1105. Memory 1106, within baseband processor 1103, within the application processor 1104, or may include an integrated chip memory device within SoC1105. Furthermore, memory 1106 may include a memory in the Universal Integrated Circuit Card (UICC).
[0089]
　Memory 1106 may store software modules (computer program) including instructions and data for processing by RSU120 described in several embodiments described above. In some implementations, the baseband processor 1103 or the application processor 1104, the software module that executes from the memory 1106 may be configured to perform processing of RSU120 described in the above embodiments.
[0090]
　Figure 12 is a block diagram showing a configuration example of the server 140. V2X controller 150 may also have a configuration similar to that of FIG. 12. Referring to FIG. 12, the server 140 includes a network interface 1201, a processor 1202, and memory 1203. Network interface 1201, network node (eg, eNodeB130, MME, P-GW,) is used to communicate with. Network interface 1201 may include, for example, a network interface card that complies with the IEEE 802.3 series (NIC).
[0091]
　The processor 1202 reads and executes the software from the memory 1203 (a computer program), the processing of the server 140 described with reference to sequence diagrams and flowcharts in the above embodiments. The processor 1202, e.g., a microprocessor, MPU, or a CPU. Processor 1202 may include multiple processors.
[0092]
　Memory 1203 is constituted by a combination of volatile and nonvolatile memory. Memory 1203 may include a storage that is remotely located from the processor 1202. In this case, the processor 1202 may access the memory 1203 via the I / O interface (not shown).
[0093]
　In the example of FIG. 12, the memory 1203 is used for storing software modules. Processor 1202, these software modules that run from the memory 1203, it is possible to perform the processing of the server 140 described in the above embodiment.
[0094]
　As described with reference to FIGS. 10 to 12, UE 100 ~ 102 to the above-described embodiments, RSU120 and 320, eNB 130, server 140, and each of the processors V2X controller 150 has the algorithm described with reference to the drawings the run one or more programs including instructions for causing a computer. This program is stored using a non-transitory computer readable media of various types (non-transitory computer readable medium), it can be supplied to the computer. Non-transitory computer readable media include with various types of entities (tangible storage medium). Examples of non-transitory computer readable media include magnetic storage media (such as floppy disks, magnetic tape, hard disk drive), magneto-optical recording medium (e.g., magneto-optical disk), Compact Disc Read Only Memory (CD-ROM), CD- R, including CD-R / W, a semiconductor memory (e.g., a mask ROM, Programmable ROM (PROM), Erasable PROM (EPROM), flash ROM, Random Access memory (RAM)). The program may be provided to a computer using a temporary computer readable media of various types (transitory computer readable medium). Examples of transitory computer readable media include electric signals, optical signals, and electromagnetic waves. Transitory computer readable media, wired communication path such as electrical wires and optical fibers, or via a wireless communication path can provide the program to a computer.
[0095]

　In the configuration shown in FIG. 1, each of RSU120 and 121 operate to periodically transmit the keep-alive (keep-alive) message or heartbeat (heartbeat) message to eNB130 or server 140 it may be. eNB130 or server 140, if it fails to receive the keep-alive or heartbeat messages from one RSU, may detect the failure of the RSU.
[0096]
　The above-described embodiments have mainly described LTE / LTE-Advanced and improvements. However, the above-described embodiments may be applied to other wireless communication network or system.
[0097]
　Furthermore, the above-described embodiments are only examples for the application of technical ideas obtained by the present inventor. In other words, the technical idea is not limited to the embodiments described above, it is needless to say various modifications are possible.
[0098]
　This application claims priority based on Japanese Patent Application No. 2015-185290, filed on September 18, 2015, the entire disclosure of which is incorporated herein.
DESCRIPTION OF SYMBOLS
[0099]
~ 102 UE 100
120, 121 RSU
130 eNB
140 server
0.99 V2X controller
220 and 221 RSU
1001 RF transceiver
1004 processor
1101 RF transceiver
1103 baseband processor
1104 application processor
1202 processor
1203 memory

claims

[Claim 1]A base station apparatus used in a cellular communications network,
　and at least one radio transceiver,
　V2X support information indicating that the Vehicle-to-Everything (V2X) served by the serving network that includes the base station apparatus is supported and transmitting via the at least one radio transceiver, transmitting a V2X settings in response to receipt of V2X terminal information transmitted from the first wireless terminal receiving the V2X support information to said first wireless terminal at least one processor, configured
comprising a base station apparatus.
[Claim 2]
　Wherein the at least one processor is configured to broadcast the V2X support information so that it can receive a plurality of wireless terminals the V2X support information including the first wireless terminal in the cell provided by the base station apparatus and that,
the base station apparatus according to claim 1.
[Claim 3]
　Wherein the at least one processor is configured to transmit the V2X support information in both the second carrier frequency band used for the first carrier frequency band and the V2X service used for cellular communications,
wherein the base station apparatus according to claim 1 or 2.
[Claim 4]
　The V2X support information, (a) the V2X services can be utilized, (b) the V2X carrier frequency band used for the service, (c) measurement setting of the carrier frequency band used for the V2X service, (d ) supported V2X service type, and (e) the V2X permitted transmission power to the wireless terminal for the service, indicating at least one of,
according to any one of claims 1 to 3 base office equipment.
[Claim 5]
　The V2X support information, said indicating the radio resource pool to be used for spontaneous resource selection for the V2X services each of the plurality of wireless terminals including the first wireless terminal,
any one of claims 1 to 4, the base station apparatus according to item 1.
[Claim 6]
　The radio resource pool, the each type of 1 or more V2X services contained in V2X service, V2X each operation mode of the wireless terminal, V2X service area each, each device type of the wireless terminal, or pre-set for each category including radio resource pool,
the base station apparatus according to claim 5.
[Claim 7]
　The V2X terminal information, (a) that the first wireless terminal is interested in the V2X service, (b) said first wireless terminal wishes to use the V2X service, (c) said first 1 wireless terminal frequency band that supports for said V2X service, (d) said first frequency band that can be used for wireless terminals said V2X service, (e) said first radio terminal concerned V2X service type a, and (f) said first device type of wireless terminal, indicating at least one of,
a base station apparatus according to any one of claims 1 to 6.
[8.]
　The V2X terminal information, the first wireless terminal indicating whether a Road Side Unit (RSU),
the base station apparatus according to any one of claims 1 to 7.
[Claim 9]
　Wherein the at least one processor, when the first wireless terminal is RSU, is configured to transmit the V2X setting indicating the allocation of radio resources reserved for the RSU in the first wireless terminal are,
the base station apparatus according to claim 8.
[Claim 10]
　The V2X settings, spontaneous indicating the radio resource pool to be used for resource selection, for the V2X service by the first wireless terminal
the base station apparatus according to any one of claims 1-9.
[Claim 11]
　The V2X setting indicates allocation of dedicated radio resources for the V2X service to the first wireless terminal,
a base station apparatus according to any one of claims 1-9.
[Claim 12]
　The base station apparatus operates as a Road Side Unit (RSU) to support the V2X service,
the base station apparatus according to any one of claims 1 to 11.
[Claim 13]
　Wherein the at least one processor, the handover request for the first wireless terminal is configured to transmit to the target base station,
　the handover request, that the first wireless terminal is interested in the V2X service, the V2X that are authorized to use the service, the possible V2X is authenticated for service, or said is approved for V2X service, indicating at least one of,
any of claim 1 to 12 or the base station apparatus according to item 1.
[Claim 14]
　Wherein the at least one processor, in response to the transmission of the handover request, the handover response indicating V2X setting the target cell is configured to receive from the target base station,
the base station apparatus according to claim 13.
[Claim 15]
　A method in a base station apparatus used in a cellular communications network,
　sending a V2X support information indicating that the Vehicle-to-Everything (V2X) service is supported by the serving network that includes the base station apparatus, and
　that, to transmit a V2X set in response to receiving the transmitted V2X terminal information from the first wireless terminal receiving the V2X support information to said first wireless terminal
comprises a method.
[Claim 16]
　The non-transitory computer readable medium storing a program for causing a method in a base station apparatus used in a cellular communication network on a computer,
　the method,
　Vehicle--to the serving network that includes the base station apparatus -Everything (V2X) service to send V2X support information indicating that it is supported, and
　V2X set in response to receiving the V2X terminal information transmitted from the first wireless terminal receiving the V2X support information that, to be transmitted to the first wireless terminal
comprises,
non-transitory computer readable media.
[Claim 17]
　At least one radio transceiver,
　receives V2X support information indicating that the Vehicle-to-Everything (V2X) services are supported by the serving network from the serving network via the at least one radio transceiver, the V2X support sends V2X terminal information indicating an interest in the V2X service in response to receipt of information to the serving network, in response to the transmission of the V2X terminal information receives V2X setting transmitted from the serving network , at least one processor configured to perform V2X communication according to the V2X set
comprises a wireless terminal.
[Claim 18]
　Wherein the at least one processor is configured to receive the V2X support information in both the second carrier frequency band used for the first carrier frequency band and the V2X service used for cellular communications,
wherein wireless terminal according to claim 17.
[Claim 19]
　The V2X terminal information, (a) that the wireless terminal is interested in the V2X service, (b) that the wireless terminal wishes to use the V2X service, (c) the wireless terminal of the V2X services frequency bands that support for, (d) the wireless terminal frequency band that can be used for the V2X service, (e) the V2X service type wireless terminal of interest, and (f) of the wireless terminal device type indicates at least one of,
the radio terminal according to claim 17 or 18.
[Claim 20]
　The V2X terminal information, the illustrated wireless terminal whether a Road Side Unit (RSU),
wireless terminal according to any one of claims 17-19.
[Claim 21]
　Wherein the at least one processor, in response to the transmission of the V2X terminal information indicating that the wireless terminal is RSU, is configured to receive the V2X setting indicating the allocation of radio resources reserved for the RSU and that,
the wireless terminal of claim 20.
[Claim 22]
　The V2X setting, the indicating the radio resource pool to be used for spontaneous resource selection for the V2X service by the wireless terminal,
the wireless terminal according to any one of claims 17-21.
[Claim 23]
　The V2X setting indicates allocation of dedicated radio resources for the V2X service to the wireless terminal,
the wireless terminal according to any one of claims 17-22.
[Claim 24]
　A method in a wireless terminal,
　receiving a V2X support information indicating that the Vehicle-to-Everything (V2X) services are supported by the serving network from the serving network,
　in response to receiving the V2X support information the V2X sending a V2X terminal information indicating that it is interested in the serving network to service, and
　receive a V2X setting transmitted from the serving network in response to the transmission of the V2X terminal information, in accordance with the V2X set performing the V2X communication,
comprising the method.
[Claim 25]
　The non-transitory computer readable medium storing a program for causing a method in a wireless terminal to a computer,
　the method
　indicates that the Vehicle-to-Everything (V2X) service is supported by the serving network receiving a V2X support information from the serving network,
　the V2X be supported in response to receiving the information transmits the V2X terminal information indicating an interest in the V2X service to the serving network, and
　the V2X terminal information in response to receiving and transmitting V2X setting transmitted from the serving network, it, performing V2X communication according to the V2X set
comprises,
non-transitory computer readable media.
[Claim 26]
　A cellular communications network,
　and Vehicle-to-Everything (V2X) service is configured to transmit V2X support information indicating that it is supported one or more base stations via the cellular communication network,
　said V2X support information in response to receiving the V2X terminal information transmitted from the first wireless terminal receiving the, is configured to transmit to the first wireless terminal a V2X set via the one or more base stations a control entity, a
cellular communication network comprising a.
[Claim 27]
　A method in a cellular communications network,
　said sending a V2X support information indicating that the Vehicle-to-Everything (V2X) services are supported by the cellular communication network from the base station,
　the receiving the V2X support information the V2X terminal information transmitted from the first wireless terminal in response to receiving via said one or more base stations, the said V2X set via the one or more base stations first wireless terminal , transmitting from the controlling entity
method comprising.