WO2017121098A1 - V2x业务上行控制面信令处理方法、装置及终端 - Google Patents

V2x业务上行控制面信令处理方法、装置及终端 Download PDF

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Publication number
WO2017121098A1
WO2017121098A1 PCT/CN2016/092536 CN2016092536W WO2017121098A1 WO 2017121098 A1 WO2017121098 A1 WO 2017121098A1 CN 2016092536 W CN2016092536 W CN 2016092536W WO 2017121098 A1 WO2017121098 A1 WO 2017121098A1
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Prior art keywords
rsu
base station
current location
location information
interface
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PCT/CN2016/092536
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English (en)
French (fr)
Inventor
雷艺学
张云飞
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宇龙计算机通信科技(深圳)有限公司
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Priority to EP16884652.5A priority Critical patent/EP3404940B1/en
Priority to US16/070,266 priority patent/US10645550B2/en
Publication of WO2017121098A1 publication Critical patent/WO2017121098A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/322—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by location data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • the present disclosure relates to the field of communications technologies, for example, to a V2X service uplink control plane signaling processing method, apparatus, and terminal.
  • 3GPP RAN#68 approved the establishment of vehicle communication items for different objects (Vehicle to X, V2X), and mainly studied the vehicle data transmission scheme based on the 3GPP communication protocol.
  • the project includes vehicle-to-vehicle (V2V) communication projects, vehicle-to-Pedestrian (V2P) communication projects, and vehicle-to-infrastructure (V2I) communication projects.
  • V2V can be performed through the Uu interface and the PC5 interface.
  • the V2V communication mechanism based on the PC5/D2D does not occupy the radio bearer resources of the macro network during the user plane data transmission process, and can naturally implement space division multiplexing.
  • the V2V communication mechanism based on PC5/D2D is regarded as the mainstream technology of LTE-based V2V.
  • the base station can schedule the secondary link (Sidelink, SL) transmission according to the current location of the user equipment (UE), such as the vehicle.
  • UE user equipment
  • the UE continuously triggers a Radio Resource Control (RRC) report message in order to let the base station know its current location.
  • RRC Radio Resource Control
  • the RRC frequently reports to the base station excessively occupies the signaling radio bearer (SRB) resources.
  • SRB signaling radio bearer
  • the present disclosure provides a V2X service uplink control plane signaling processing method, apparatus, and terminal, which can solve the problem that the RRC frequently reports a message to the base station, causing an increase in control plane signaling overhead. Achieve improved utilization of overall wireless resources.
  • the present disclosure provides a method for processing an uplink control plane signaling of a V2X service, which is applicable to a terminal, and includes:
  • the current location information is reported by an X2 interface between the plurality of RSUs and an X2 interface between the RSU and the base station.
  • the method further includes:
  • the RRC connection is selected to be established with the macro cell or the small cell controlled by the RSU according to the mobility state maintenance and the cell selection and handover function.
  • the base station and the RSU plan the respective tracking area TA, so that the macro cell and the tracking area of the RSU update the TAU.
  • the method further includes:
  • TAI list configured to the UE, where the TAI list of the UE includes a TA configured by the base station to the macro cell, and the RSU is configured to the RSU TA, and the TA of the macro cell is different from the TA of the RSU.
  • the method further includes:
  • the UE When the UE is a UE in a connected state, and when the UE switches between a route area covered by the first RSU and a route area covered by the second RSU, pass the first RSU and the second The X2 interface between the RSUs reports the current location information.
  • the method further includes:
  • the current location information stored in the UE is reported by using an X2 interface between the first RSU and the second RSU;
  • the current location information stored in the UE is passed Reporting through the X2 interface between the first RSU and the second RSU;
  • the X2 interface between the base stations reports the current location information.
  • the method further includes:
  • the cell ID of the previous RSU and/or the selected one are selected through the X2 interface between the RSU and the base station.
  • the RSU cell ID is reported to the base station.
  • the present disclosure further provides a V2X service uplink control plane signaling processing apparatus, including: a receiving unit, a starting unit, a selecting unit, and a reporting unit, where
  • a receiving unit configured to receive an uplink signaling reduction mechanism indicated by the base station in a system information broadcast or other radio resource control RRC signaling;
  • the startup unit is set to start an uplink signaling reduction mechanism
  • a selecting unit configured to camp on the macro cell based on the macro cell uplink resource selection or to select to access to a small cell controlled by the plurality of RSUs;
  • the reporting unit is configured to report current location information by using an X2 interface between the plurality of RSUs and the X2 interface between the RSU and the base station.
  • the base station plans a tracking area TA of the base station, and the RSU plans the TA of the RSU to make the macro
  • the cell and the tracking area update TAU of the RSU are the same, if the macro cell and the RSU have different TAs:
  • the receiving unit is configured to receive a tracking area identifier list TAI list configured by the base station and the RSU to the UE, where a TAI list of the UE includes a TA configured by the base station to the macro cell, and The RSU is configured to the TA of the RSU, and the TA of the macro cell is different from the TA of the RSU.
  • the reporting unit includes:
  • a first reporting subunit configured to report through the X2 interface between the first RSU and the second RSU when switching between a route area covered by the first RSU and a route area covered by the second RSU Current location information.
  • the UE further includes:
  • a saving unit configured to save the current location information of the UE in the UE if the current location information of the UE is acquired by the first RSU;
  • the reporting unit includes a second reporting subunit, configured to pass the current location information stored in the UE between the first RSU and the second RSU after the UE establishes an RRC connection with the second RSU Reporting on the X2 interface;
  • the reporting unit includes a third reporting subunit, configured to pass current location information stored in the UE through the first RSU and the foregoing before the UE disconnects from the first RSU Reporting on the X2 interface between the second RSUs;
  • the reporting unit includes a broadcast subunit, configured to broadcast the current location information in a broadcast manner, wherein the first RSU and the second RSU are configured with a PC5 interface, and are received and saved in the After the current location information in the UE, the current location information is reported by the X2 interface with the base station.
  • the reporting unit includes:
  • a fourth reporting subunit configured to: in the process of performing handover, if the global satellite navigation system GNSS or other positioning information of the UE is invalid, the cell identifier code of the previous RSU is passed through the X2 interface between the RSU and the base station The ID and/or the selected RSU cell ID are reported to the base station.
  • an embodiment of the present disclosure further provides a user terminal, where the terminal includes one or more processors, a memory, and one or more programs, where the V2X service uplink control plane signaling processing device is stored in the memory. .
  • the embodiment of the present disclosure further provides a non-transitory computer readable storage medium, where computer executable instructions are stored, and the computer executable instructions can execute the V2X service uplink control plane information processing method.
  • the terminal UE when the base station indicates the uplink signaling reduction mechanism in the first RRC signaling or the second RRC signaling, the terminal UE starts uplink signaling a reduction mechanism; a macro cell uplink resource selection based on a macro cell or access to a small cell controlled by a plurality of RSUs; an X2 interface between the RSUs, and between the RSU and the base station The X2 interface reports the current location information.
  • the technical solution of the present disclosure introduces an indication mechanism for the base station to reduce the uplink signaling, and the base station controls the uplink signaling reduction mechanism, when the base station indicates the uplink signaling reduction mechanism in the first RRC signaling or the second RRC signaling.
  • the UE initiates an uplink signaling reduction mechanism, so that the UE preferentially selects a small cell that camps on the macro cell or accesses the RSU to save the macro cell uplink resource, and passes between the RSUs and between the RSU and the base station in the handover process.
  • the uplink reporting signaling is offloaded from the air interface, and the reporting signaling is transferred to the RSU layer, which does not occupy the macro network resources, reduces the control plane signaling overhead, thereby achieving the purpose of improving the utilization of the overall wireless resources.
  • FIG. 1 is a schematic structural diagram of a base station and an RSU disclosed in an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart diagram of a V2X service uplink control plane signaling processing method according to Embodiment 1 of the present disclosure
  • FIG. 3 is a schematic block diagram of a V2X service uplink control plane signaling processing apparatus 200 according to Embodiment 2 of the present disclosure
  • FIG. 4 is a partial schematic block diagram of another V2X service uplink control plane signaling processing apparatus 200 according to Embodiment 2 of the present disclosure
  • FIG. 5 is a schematic diagram showing the hardware structure of a user terminal according to Embodiment 4 of the present disclosure.
  • the present disclosure is based on the 3GPP TSG RAN2 standard, and the architecture between the base station and the RSU as shown in FIG. 1, including: base station eNB, RSU #1, RSU #2 and UE, between RSU #1 and RSU #2, and RSU There is an X2 interface between #1, RSU#2 and the base station eNB, and the X2 interface is based on a backhaul with ideal transmission characteristics.
  • the technical solution disclosed in the embodiment of the present disclosure introduces the switch control of the uplink signaling reduction mechanism on the base station side, so as to be applicable to scenarios in which uplink resource configuration is different, and the UE can be solved through cooperation between the RSUs and between the RSU and the base station. , for example, a vehicle, reporting location information to the macro network The source is occupied, causing problems in signaling overhead.
  • the related description can be made by the following examples.
  • FIG. 2 is a schematic flowchart of a V2X service uplink control plane signaling processing method according to Embodiment 1 of the present disclosure. The method is applicable to a UE, and includes:
  • the UE receives an uplink signaling reduction mechanism indicated by a base station in a system information broadcast or other RRC signaling;
  • the system information in the system information broadcast may include one master information block (MIB) and a plurality of system information blocks (SIBs).
  • the plurality of SIBs are transmitted through the RRC network of the Physical Downlink Shared Channel (PDSCH).
  • PDSCH Physical Downlink Shared Channel
  • the UE starts an uplink signaling reduction mechanism
  • the UE camps on a macro cell based on a macro cell uplink resource selection or selects to access to a small cell controlled by multiple RSUs;
  • the UE may change the mobility state management and the cell selection and handover function, and select a small cell controlled by the RSU to perform access;
  • the UE reports current location information through an X2 interface between the multiple RSUs and an X2 interface between the RSU and the base station.
  • the base station optionally, if the base station does not indicate an uplink signaling reduction mechanism in the first RRC signaling or the second RRC signaling;
  • the UE selects to establish an RRC connection with the macro cell or the small cell controlled by the RSU according to the mobility state maintenance and the cell selection and handover function.
  • the UE when the base station indicates the uplink signaling reduction mechanism in the first RRC signaling or the second RRC signaling, the UE starts the uplink signaling reduction mechanism;
  • the macro cell uplink resource is selected to reside in the macro cell or access the small cell controlled by the RSU;
  • the current location information is reported by the X2 interface between the RSUs and the X2 interface between the RSU and the base station.
  • the technical solution disclosed by the disclosure introduces an indication mechanism for the base station to reduce the uplink signaling, and the base station controls the uplink signaling reduction mechanism to switch, and the base station indicates the uplink signaling reduction mechanism in the system information broadcast or other radio resource control RRC signaling.
  • the UE initiates an uplink signaling reduction mechanism, so that the UE preferentially selects a small cell that camps on the macro cell or accesses the RSU to save the macro cell uplink resource, and passes between the RSUs and the RSUs and the base stations in the handover process. Collaboration between the two sides, the uplink report signaling is offloaded from the air interface, and the report signaling is transferred to the RSU layer, which does not occupy macro network resources and reduces control plane signaling. Sales, thereby achieving the goal of improving the utilization of overall wireless resources.
  • the behavior of the idle state UE and the connected state UE is enhanced, so that the UE preferentially selects a small cell that camps or accesses the RSU control in order to save the macro cell uplink resource overhead.
  • the influence of the base station side on the introduction of the uplink signaling reduction mechanism can be reduced by the tracking area TA planning and the tracking area identifier list TAI list configuration.
  • the connected UE in addition to transferring the reporting signaling to the RSU layer, the macro network resources are not occupied, and a corresponding solution for not losing the location reporting information during the handover process is also proposed.
  • the frequency of the cell reselection may increase. Therefore, in the technical solution of the present disclosure, optionally,
  • the base station and the RSU respectively plan the respective TAs so that the tracking area update TAU of the macro cell and the RSU is the same;
  • the TA of the macro cell and the TA of the RSU are both configured in a TAI list of the UE;
  • the UE in the idle state receives the TAI list configured by the base station and the RSU to the UE.
  • the UE can be reduced by reasonable planning of the TA and reasonable configuration of the TAI list. TAU frequency.
  • the UE When the UE is a connected UE, the UE reports the current location information through the RSU, and reports the current location information of the UE to the base station side through the X2 interface between the base station and the RSU, thereby avoiding occupying the uplink information of the base station. make.
  • the UE When the UE is a connected UE, the UE performs less handover for the low mobility state UE, and loses less when reporting the current location information.
  • the handover between the UE and the small cell controlled by the RSU may be relatively frequent. Therefore, in order to alleviate the problem of frequent handover, in the embodiment of the present disclosure
  • the UE switches between the route area covered by the first RSU and the route area covered by the second RSU, passing the X2 between the first RSU and the second RSU The interface reports the current location information.
  • switching is performed between route areas within the coverage of the foregoing RSU.
  • the UE can use the pre-configured resource pool, or the abnormal resource pool, or use a valid resource or resource pool between multiple RSUs to perform V2X information transmission, and still achieve the overhead of saving uplink reporting signaling. the goal of.
  • antenna coverage of the RSU there are many types of antenna coverage of the RSU, such as omnidirectional coverage or linear coverage. If the line is covered, the antenna direction is selected by the RSU, and the strip-shaped route area after the extended coverage is obtained.
  • the transmission when the handover is performed, in order to keep the current location information of the UE in the handover, that is, the macro network radio resource is not occupied, the transmission may be performed without interruption.
  • the method also includes:
  • the current location information stored in the UE is reported by using an X2 interface between the first RSU and the second RSU;
  • the current location information saved in the UE may be used as part of the UE history information history information IE;
  • the method when the handover is performed, in order to keep the UE in the handover reporting the current location information, the macro network radio resource is not occupied, and the transmission is performed without interruption.
  • the method also includes:
  • the current location information saved in the UE is reported by using an X2 interface between the first RSU and the second RSU;
  • the method when the handover is performed, in order to keep the UE in the handover reporting the current location information, the macro network radio resource is not occupied, and the transmission is performed without interruption.
  • the method also includes:
  • the UE broadcasts the current location information in a broadcast manner
  • the PC5 interface is configured on the first RSU and the second RSU, and after receiving the current location information stored in the UE, reporting the current location information by using an X2 interface with the base station. .
  • the method further includes:
  • the UE In the process of performing handover, if the global satellite navigation system GNSS or other positioning information of the UE is invalid, the UE passes the cell identifier cell ID of the previous RSU and/or has passed the X2 interface between the RSU and the base station.
  • the selected RSU cell ID is reported to the base station; the RSU cell ID herein may also be a small cell identifier of the RSU;
  • the previous RSU cell ID and/or the selected RSU cell ID are reported to the base station as the coarse-grained amount information, and the UE can also report multiple RSU cell IDs at the same time, so that the base station can be enabled.
  • the UE location is judged more accurately to support resource allocation.
  • the UE when the base station indicates the uplink signaling reduction mechanism in the system information broadcast or other RRC signaling, the UE starts the uplink signaling reduction mechanism;
  • the resource selection camps on the macro cell or accesses the small cell controlled by the RSU; reports the current location information through the X2 interface between the RSUs and the X2 interface between the RSU and the base station.
  • the technical solution disclosed in the disclosure introduces an indication mechanism for the base station to reduce the uplink signaling, and the base station controls the uplink signaling reduction mechanism.
  • the UE When the base station indicates the uplink signaling reduction mechanism in the system information broadcast or other RRC signaling, The UE initiates an uplink signaling reduction mechanism, so that the UE preferentially selects a small cell that camps on the macro cell or accesses the RSU to save the macro cell uplink resource, and uses the cooperation between the RSU and the RSU and the base station in the handover process.
  • the uplink report signaling is offloaded from the air interface, and the report signaling is transferred to the RSU layer, which does not occupy the macro network resources, reduces the control plane signaling overhead, and thereby achieves the purpose of improving the utilization of the overall wireless resources.
  • the second embodiment of the present disclosure correspondingly discloses a V2X service uplink control plane signaling processing device, and a terminal applicable to the V2X service uplink control plane signaling processing device.
  • the schematic block diagram of the V2X service uplink control plane signaling processing apparatus 200 disclosed in the embodiment of the present disclosure is as shown in FIG. 3, and includes: a receiving unit 210, a starting unit 220, a selecting unit 230, and a reporting unit 240;
  • the receiving unit 210 is configured to receive an uplink signaling reduction mechanism indicated by the base station in system information broadcast or other radio resource control RRC signaling;
  • the initiating unit 220 is configured to start an uplink signaling reduction mechanism
  • the selecting unit 230 is configured to camp on the macro cell based on the macro cell uplink resource selection or select to access to the small cell controlled by the multiple RSUs;
  • the reporting unit 240 is configured to report current location information by using an X2 interface between the multiple RSUs and the X2 interface between the RSU and the base station.
  • the base station eNB and the RSU are configured to plan respective TAs, so that the macro cell and the RSU are configured.
  • the TAU is the same. If the TA of the macro cell and the RSU are different, the base station configures the TA configured to the macro cell TA and the RSU to the RSU in the TAI list of the UE.
  • the receiving unit is configured to receive a TAI list configured by the base station and the RSU to the UE.
  • the reporting unit includes:
  • a first reporting subunit configured to report through the X2 interface between the first RSU and the second RSU when switching between a route area covered by the first RSU and a route area covered by the second RSU Current location information.
  • the V2X service uplink control plane signaling processing system device 200 further includes:
  • the saving unit 250 is configured to save the current location information of the UE in the UE if the current location information of the UE is acquired by the first RSU;
  • the reporting unit includes: a second reporting subunit 2410, configured to: after the UE establishes an RRC connection with the second RSU, pass the current location information stored in the UE by using the first Reporting on the X2 interface between the RSU and the second RSU;
  • the reporting unit includes a third reporting subunit 2420, configured to pass the current location information saved in the UE through the first RSU and the location before the UE disconnects from the first RSU Reporting on the X2 interface between the second RSUs;
  • the reporting unit includes a broadcast subunit 2430 configured to broadcast the current location information in a broadcast manner, wherein the first RSU and the second RSU are configured with a PC5 interface, and are received and stored in the After the current location information in the UE is described, the current location information is reported by using an X2 interface with the eNB.
  • the reporting unit further includes a fourth reporting subunit, configured to: during the handover, if the GNSS or other positioning information of the UE is invalid, between the RSU and the base station
  • the X2 interface reports the previous RSU cell ID and/or the selected RSU cell ID to the eNB.
  • Embodiment 3 of the present disclosure also provides a non-transitory computer readable storage medium storing computer executable instructions for performing any of the above embodiments.
  • a fourth embodiment of the present disclosure discloses a hardware structure of a user terminal. As shown in FIG. 5, the user terminal includes:
  • One or more processors 310, one processor 310 is taken as an example in FIG. 5;
  • the user terminal may further include: an input device 330 and an output device 340.
  • the processor 310, the memory 320, the input device 330, and the output device 340 in the device may be connected by a bus or other means, and the bus connection is taken as an example in FIG.
  • the memory 320 is used as a non-transitory computer readable storage medium, and can be used to store software programs, computer executable programs, and modules, such as program instructions/modules corresponding to the V2X service uplink control plane signaling processing method in the embodiments of the present disclosure ( For example, the receiving unit 210, the starting unit 220, the selecting unit 230, and the reporting unit 240) shown in FIG.
  • the processor 310 performs the V2X service uplink control plane signaling processing method of the foregoing method embodiment by executing the software program, the instruction, and the module stored in the memory 320, thereby performing various function applications and data processing of the server.
  • the memory 320 may include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to usage of the terminal device, and the like.
  • memory 320 can include high speed random access memory, and can also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • memory 320 can optionally include memory remotely located relative to processor 320, which can be connected to the terminal device over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Input device 330 can be used to receive input digital or character information and to generate key signal inputs related to user settings and function control of the terminal.
  • the output device 340 can include a display device such as a display screen.
  • the one or more modules are stored in the memory 320, and when executed by the one or more processors 310, the V2X service uplink control plane signaling processing method in the foregoing method embodiment is performed.
  • the present disclosure provides a technical solution for the uplink control plane signaling processing of the V2X service, and introduces an indication mechanism for the uplink signaling reduction by the base station, so that the UE saves the macro cell.
  • Priority for selecting a resident macro cell or accessing RSU control for uplink resources The small cell, through the cooperation between the RSUs and the RSU and the base station, offloads the uplink reporting signaling from the air interface, reduces the control plane signaling overhead, and thereby achieves the purpose of improving the utilization of the overall wireless resources.
  • the embodiment of the present disclosure introduces an indication mechanism for the base station to reduce the uplink signaling, so that the UE preferentially selects to camp on the macro cell or access the small cell controlled by multiple RSUs in order to save the macro cell uplink resource, and
  • the cooperation between the RSU and the base station offloads the uplink report signaling from the air interface, reduces the control plane signaling overhead, and improves the utilization of the overall radio resource.

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Abstract

V2X业务上行控制面信令处理方法、装置及终端，当基站在第一RRC信令或第二RRC信令中指示上行信令减少机制时，UE启动上行信令减少机制；基于宏小区上行资源，选择驻留在宏小区或选择接入至由多个RSU控制的小小区；通过RSU之间以及RSU与基站之间的X2接口汇报当前的位置信息，其中第一RRC信令用于发送系统信息广播中的系统信息。

Description

V2X业务上行控制面信令处理方法、装置及终端
本申请要求于2016年1月15日提交中国专利局，申请号为201610029373.0、发明名称为“一种V2X业务上行控制面信令处理方法、装置及终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及通信技术领域，例如涉及一种V2X业务上行控制面信令处理方法、装置及终端。
背景技术
为了实现车辆对外界的信息交换，3GPP RAN#68批准设立了车辆对不同对象(Vehicle to X，V2X)的通信项目，主要研究基于3GPP通信协议的车辆数据传输方案。该项目中包括了车辆对车辆(vehicle to vehicle，V2V)的通信项目，车辆对行人(Vehicle to Pedestrian，V2P)的通信项目和车辆对基础设施(Vehicle to Infrastructure，V2I)的通信项目等。其中，V2V可以通过Uu接口和PC5接口进行，基于PC5/D2D的V2V通信机制，在用户面数据传输过程中不占用宏网络的无线承载资源，且可以天然地实现空分复用，因此，该基于PC5/D2D的V2V通信机制被视为LTE-based V2V的主流技术。
在3GPP TSG RAN1#83讨论中提到了基站可以根据用户终端(User Equipment，UE)，例如车辆，的当前的位置，对副链路(Sidelink，SL)传输进行调度。在基站根据终端位置进行调度的过程中，UE为了让基站获知自己的当前位置，UE不断触发无线资源控制(Radio Resource Control，RRC)报告消息。
但是RRC频繁向基站汇报消息会对信令无线承载(signaling radio bearer，SRB)资源过度占用，例如随着UE的数量增加和汇报的频度的增加，这种资源过度占用将越来越明显，实际上还会占用过多的宏网络资源，增加整个控制面的信令开销，导致整个无线资源的利用率降低。
发明内容
本公开基于上述问题，提出了一种V2X业务上行控制面信令处理方法、装置及终端，可解决RRC频繁向基站汇报消息导致控制面信令开销增加的问题，从而 实现提高整体无线资源的利用率。
第一方面，本公开提出了一种V2X业务上行控制面信令处理方法，适用于终端，包括：
接收基站在系统信息广播或其他无线资源控制RRC信令中指示的上行信令减少机制；
启动上行信令减少机制；
基于宏小区上行资源，选择驻留在宏小区或选择接入至由多个路侧单元RSU控制的小小区；以及
通过所述多个RSU之间的X2接口，以及所述RSU与基站之间的X2接口汇报当前的位置信息。
在本技术方案中，可选地，所述方法还包括：
当基站未在系统信息广播或其他RRC信令中指示上行信令减少机制时，根据移动性状态维护以及小区选择与切换功能，选择与宏小区或者RSU控制的小小区建立RRC连接。
在本技术方案中，可选地，当所述UE为空闲态的UE，所述基站和所述RSU对各自的跟踪区TA进行规划，使所述宏小区和所述RSU的跟踪区更新TAU为同样的TAU，若所述宏小区和所述RSU的跟踪区TA不同时，所述方法还包括：
接收所述基站和所述RSU配置给所述UE的跟踪区标识符列表TAI list，所述UE的TAI list中包括所述基站配置给宏小区的TA，和所述RSU配置给所述RSU的TA，且所述宏小区的TA与所述RSU的TA不同。
在本技术方案中，可选地，所述方法还包括：
当所述UE为连接态的UE，且当所述UE在第一RSU覆盖的路线区域和所述第二RSU覆盖的路线区域之间进行切换时，通过所述第一RSU和所述第二RSU之间的X2接口汇报当前的位置信息。
在本技术方案中，可选地，所述方法还包括：
若所述当前的位置信息在所述第一RSU下获取的，将所述当前的位置信息在所述UE中进行保存；
当所述UE与所述第二RSU建立RRC连接后，将保存于所述UE中的当前的位置信息通过第一RSU和第二RSU之间的X2接口进行汇报；
或者，
在断开与所述第一RSU的连接之前，将保存于所述UE中的当前的位置信息通 过所述第一RSU和所述第二RSU之间的X2接口进行汇报；
或者，
以广播方式将所述当前的位置信息进行广播，其中，所述第一RSU和所述第二RSU上配置了PC5接口，在接收到保存在所述UE中的当前的位置信息之后，通过与所述基站之间的X2接口汇报所述当前的位置信息。
在本技术方案中，可选地，所述方法还包括：
在进行切换的过程中，若所述UE的全球卫星导航系统GNSS或其他定位信息失效，通过RSU与基站之间的X2接口，将前一RSU的小区识别码cell ID和/或已经选择到的RSU cell ID汇报给所述基站。
第二方面，本公开还提供了一种V2X业务上行控制面信令处理装置，包括：接收单元、启动单元、选择单元和汇报单元，其中
接收单元，设置为接收所述基站在系统信息广播或其他无线资源控制RRC信令中指示的上行信令减少机制；
启动单元，设置为启动上行信令减少机制；
选择单元，设置为基于宏小区上行资源选择驻留在宏小区或选择接入至由多个RSU控制的小小区；以及
汇报单元，设置为通过所述多个RSU之间的X2接口，所述RSU与所述基站之间的X2接口汇报当前的位置信息。
在本技术方案中，可选地，当所述UE为空闲态的UE，所述基站对该基站的跟踪区TA进行规划，且所述RSU对该RSU的TA进行规划，以使所述宏小区和所述RSU的跟踪区更新TAU相同，若所述宏小区和所述RSU的TA不同时：
所述接收单元，设置为接收所述基站和所述RSU配置给所述UE的跟踪区标识符列表TAI list，所述UE的TAI list中包括所述基站配置给所述宏小区的TA，和所述RSU配置给所述RSU的TA，且所述宏小区的TA与所述RSU的TA不同。
在本技术方案中，可选地，当所述UE为连接态的UE时，所述汇报单元，包括：
第一汇报子单元，设置为在第一RSU覆盖的路线区域和所述第二RSU覆盖的路线区域之间进行切换时，通过所述第一RSU和所述第二RSU之间的X2接口汇报当前的位置信息。
在本技术方案中，可选地，所述UE还包括：
保存单元，设置为若所述UE的当前的位置信息在所述第一RSU下获取的，将所述UE的当前的位置信息在所述UE中进行保存；
所述汇报单元包括第二汇报子单元，设置为当所述UE与所述第二RSU建立RRC连接后，将保存于所述UE中的当前的位置信息通过第一RSU和第二RSU之间的X2接口进行汇报；
或者，
所述汇报单元包括第三汇报子单元，设置为在所述UE断开与所述第一RSU的连接之前，将保存在所述UE中的当前的位置信息通过所述第一RSU和所述第二RSU之间的X2接口进行汇报；
或者，
所述汇报单元包括广播子单元，设置为以广播方式将所述当前的位置信息进行广播，其中，所述第一RSU和所述第二RSU上配置了PC5接口，在接收到保存在所述UE中的当前的位置信息之后，通过与所述基站之间的X2接口汇报所述当前的位置信息。
在本技术方案中，可选地，汇报单元包括：
第四汇报子单元，设置为在进行切换的过程中，若所述UE的全球卫星导航系统GNSS或其他定位信息失效，通过RSU与基站之间的X2接口，将前一RSU的小区识别码cell ID和/或已经选择到的RSU cell ID汇报给所述基站。
第三方面，本公开实施例还提供了一种用户终端，该终端包括一个或多个处理器、存储器以及一个或多个程序，所述存储器中存储有上述V2X业务上行控制面信令处理装置。
第四方面，本公开实施例还提供了一种非瞬时性计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令可执行上述V2X业务上行控制面信今处理方法。
本公开实施例公开的针对V2X业务上行控制面信令处理的技术方案，当基站在第一RRC信令或第二RRC信令中指示上行信令减少机制时，所述终端UE启动上行信令减少机制；基于宏小区上行资源选择驻留在宏小区或接入至由多个RSU控制的小小区；通过所述RSU之间的X2接口，以及所述RSU与基站之间的 X2接口汇报当前的位置信息。本公开的技术方案引入基站对上行信令减少的指示机制，通过基站对上行信令减少机制的开关控制，当基站在第一RRC信令或第二RRC信令中指示上行信令减少机制时，由UE启动上行信令减少机制，使得UE为了节省宏小区上行资源而优先选择驻留宏小区或者接入RSU控制的小小区，并在切换过程中通过RSU之间，以及RSU与基站之间的协作，将上行汇报信令从空口上进行卸载，将汇报信令转移到RSU层，不占用宏网络资源，减少控制面信令开销，从而实现提高整体无线资源的利用率的目的。
附图说明
图1示出了本公开实施例公开的基站与RSU之间的架构示意图；
图2示出了本公开实施例一公开的一种V2X业务上行控制面信令处理方法的流程示意图；
图3示出了本公开实施例二公开的一种V2X业务上行控制面信令处理装置200的示意框图；
图4示出了本公开实施例二公开的另一种V2X业务上行控制面信令处理装置200的部分示意框图；
图5示出了本公开实施例四提供的一种用户终端的硬件结构示意图。
实施方式
为了能够更清楚地理解本公开的上述目的、特征和优点，下面结合附图和可选实施方式对本公开进行相关描述。需要说明的是，在不冲突的情况下，本公开的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多细节以便于充分理解本公开，但是，本公开还可以采用其他不同于在此描述的其他方式来实施，因此，本公开的保护范围并不受下面公开的实施例的限制。
本公开基于3GPP TSG RAN2标准，以及如图1所示的基站与RSU之间的架构，包括：基站eNB，RSU#1，RSU#2和UE，RSU#1和RSU#2之间，以及RSU#1、RSU#2与基站eNB之间存在X2接口，该X2接口基于传输特性较为理想的回程线路(backhaul)。本公开实施例所公开的技术方案引入基站侧对上行信令减少机制的开关控制，以便于适用于上行资源配置不同的场景，并通过RSU之间以及RSU与基站之间的协作，可解决UE，例如车辆，的汇报位置信息对宏网络的资 源占用，导致信令开销的问题。可通过以下实施例进行相关说明。
实施例一
如图2所示，为本公开实施例一公开的一种V2X业务上行控制面信令处理方法的流程示意图，该方法适用于UE，包括：
在S110中，所述UE接收基站在系统信息广播或其他RRC信令中指示的上行信令减少机制；
所述系统信息广播中的系统信息可包括1个主信息块(Master Information Block，MIB)和多个系统信息块(System Information Block，SIB)。其中，多个SIB通过物理下行共享信道(Physical Downlink Shared Channel，PDSCH)的RRC信今发送。
在S120中，所述UE启动上行信令减少机制；
在S130中，所述UE基于宏小区上行资源选择驻留在宏小区或选择接入至由多个RSU控制的小小区；
在S130中，UE可以改变移动性状态管理以及小区选择与切换功能，可选择RSU控制的小小区进行接入；
在S140中，所述UE通过所述多个RSU之间的X2接口，以及所述RSU与基站之间的X2接口汇报当前的位置信息。
在本公开实施例中，可选，若基站未在第一RRC信令或第二RRC信令中指示上行信令减少机制；
则所述UE根据移动性状态维护以及小区选择与切换功能，选择与宏小区或者RSU控制的小小区建立RRC连接。
本公开实施例公开的对控制面信令处理的技术方案，当基站在第一RRC信令或第二RRC信令中指示上行信令减少机制时，所述UE启动上行信令减少机制；基于宏小区上行资源选择驻留宏小区或接入RSU控制的小小区；通过所述RSU之间的X2接口，以及所述RSU与基站之间的X2接口汇报当前的位置信息。本公开公开的技术方案引入基站对上行信令减少的指示机制，通过基站对上行信令减少机制的开关控制，当基站在系统信息广播或其他无线资源控制RRC信令中指示上行信令减少机制时，由UE启动上行信令减少机制，使得UE为了节省宏小区上行资源而优先选择驻留宏小区或者接入RSU控制的小小区，并在切换过程中通过RSU之间，以及RSU与基站之间的协作，将上行汇报信令从空口上进行卸载，将汇报信令转移到RSU层，不占用宏网络资源，减少控制面信令开 销，从而实现提高整体无线资源的利用率的目的。
在本公开实施例中，针对空闲态的UE和连接态的UE的行为进行了增强，使得UE为了节省宏小区上行资源开销而优先选择驻留或者接入RSU控制的小小区。对于空闲态的UE，通过跟踪区TA规划和跟踪区标识符列表TAI list配置可以减少基站侧对上行信令减少机制引入的影响。对于连接态的UE，除了将汇报信令转移到RSU层，不占用宏网络资源，同时也提出了在切换过程中不损失位置汇报信息的相应解决方案。
当所述UE为空闲态的UE时，由于小区重选频度会增加，因此在本公开的技术方案中，可选地，
所述基站和所述RSU分别对各自的TA进行规划，以使所述宏小区和所述RSU的跟踪区更新TAU相同；
若所述宏小区和所述RSU的TA不同，则将所述宏小区的TA和所述RSU的TA均配置在所述UE的TAI list中；
此时，该处于空闲态的UE接收所述基站和所述RSU配置给该UE的TAI list，本公开实施例中，通过上述对TA进行合理的规划和TAI list的合理配置，能够减少UE的TAU频率。
当所述UE为连接态的UE时，UE通过RSU汇报当前的位置信息，可通过基站与RSU之间的X2接口，将该UE的当前位置信息汇报到基站一侧，避免占用基站的上行信令。
当所述UE为连接态的UE时，对于低速运动状态low mobility state的UE，所进行的切换较少，在汇报当前的位置信息时损失较少。
对于中速运动状态medium mobility state的UE或者高速运动状态high mobility state的UE，UE在RSU控制的小小区之间的切换会比较频繁，由此，为了缓解频繁切换的问题，在本公开实施例中，可选地，当所述UE在第一RSU覆盖的路线区域和所述第二RSU覆盖的路线区域之间进行切换时，通过所述第一RSU和所述第二RSU之间的X2接口汇报当前的位置信息。
在本公开实施例中，基于在上述RSU的覆盖范围内的路线区域之间进行切换，一方面，在频繁发生切换时，使得所造成的信令开销存在于UE与RSU之间，而不依赖于基站；另一方面，UE可以使用预配置的资源池，或者异常资源池，或者使用多个RSU之间有效的资源或资源池，进行V2X信息传输，仍然可以达到节省上行汇报信令的开销的目的。
需要说明的是，上述RSU的天线覆盖方式有很多种，如全向覆盖，或线状覆盖，若为线状覆盖则由RSU选择天线方向，得到扩大覆盖范围后的带状路线区域。
在上述本公开实施例中涉及到切换时，为了保持切换中的UE汇报当前的位置信息即不占用宏网络无线资源，也可不间断地进行传输，在本公开实施例中，可选地，该方法还包括：
若所述UE的当前的位置信息是在所述第一RSU下获取的，将所述当前的位置信息在所述UE中进行保存；以及
当所述UE与所述第二RSU建立RRC连接后，将保存于所述UE中的当前的位置信息通过第一RSU和第二RSU之间的X2接口进行汇报；
需要说明的是，上述在UE中进行保存的当前的位置信息可以作为UE历史信息history information IE的一部分；
在上述本公开实施例中涉及到切换时，为了保持切换中的UE汇报当前的位置信息即不占用宏网络无线资源，也不间断地进行传输，在本公开实施例中，可选地，该方法还包括：
所述UE在断开与所述第一RSU的连接之前，将保存在UE中的当前的位置信息通过所述第一RSU和所述第二RSU之间的X2接口进行汇报；
在上述本公开实施例中涉及到切换时，为了保持切换中的UE汇报当前的位置信息即不占用宏网络无线资源，也不间断地进行传输，在本公开实施例中，可选地，该方法还包括：
所述UE以广播方式将所述当前的位置信息进行广播；
其中，所述第一RSU和所述第二RSU上配置了PC5接口，在接收到保存在UE中的当前的位置信息之后，通过与所述基站之间的X2接口汇报所述当前的位置信息。
在上述任一本公开实施例中，可选地，该方法还包括：
在进行切换的过程中，若所述UE的全球卫星导航系统GNSS或其他定位信息失效，所述UE通过RSU与基站之间的X2接口，将前一RSU的小区标识符cell ID和/或已经选择到的RSU cell ID汇报给所述基站；这里的RSU cell ID也可以为RSU的小小区标识符small cell ID；
其中，将前一RSU cell ID和/或已经选择到的RSU cell ID汇报给所述基站作为粗粒度额位置信息，UE也可以同时汇报多个RSU cell ID，能够使基站 更加精确地判断UE位置，以支持资源分配。
需要说明的是，在本公开实施例中的“第一”，“第二”仅用于区分相同类型的设备或装置。
本公开实施例公开的对控制面信令处理的技术方案，当基站在系统信息广播或其他RRC信令中指示上行信令减少机制时，所述UE启动上行信令减少机制；基于宏小区上行资源选择驻留宏小区或接入RSU控制的小小区；通过所述RSU之间的X2接口，以及所述RSU与基站之间的X2接口汇报当前的位置信息。本公开公开的技术方案引入基站对上行信令减少的指示机制，通过基站对上行信令减少机制的开关控制，当基站在系统信息广播或其他RRC信令中指示上行信令减少机制时，由UE启动上行信令减少机制，使得UE为了节省宏小区上行资源而优先选择驻留宏小区或者接入RSU控制的小小区，并在切换过程中通过RSU之间，以及RSU与基站之间的协作，将上行汇报信令从空口上进行卸载，将汇报信令转移到RSU层，不占用宏网络资源，减少控制面信令开销，从而实现提高整体无线资源的利用率的目的。
实施例二
本公开实施例二对应公开了V2X业务上行控制面信令处理装置，以及适用于该V2X业务上行控制面信令处理装置的终端。
本公开实施例公开的V2X业务上行控制面信令处理装置200的示意框图如图3所示，包括：接收单元210，启动单元220，选择单元230和汇报单元240；
其中，接收单元210，设置为接收所述基站在系统信息广播或其他无线资源控制RRC信令中指示的上行信令减少机制；
启动单元220，设置为启动上行信令减少机制；
选择单元230，设置为基于宏小区上行资源选择驻留在宏小区或选择接入至由多个RSU控制的小小区；以及
汇报单元240，设置为通过所述多个RSU之间的X2接口，所述RSU与所述基站之间的X2接口汇报当前的位置信息。
在本公开实施例中，可选地，当所述UE为空闲态的UE时，所述基站eNB和所述RSU，设置为对各自的TA进行规划，使所述宏小区和所述RSU的TAU相同，若所述宏小区和所述RSU的TA不同，则将基站将配置给宏小区TA和所述RSU配置给RSU的TA均配置在该UE的TAI list中；
所述接收单元，设置为接收所述基站和所述RSU配置给所述UE的TAI list。
在本公开实施例中，可选地，当所述UE为连接态的UE时，所述汇报单元，包括：
第一汇报子单元，设置为在第一RSU覆盖的路线区域和所述第二RSU覆盖的路线区域之间进行切换时，通过所述第一RSU和所述第二RSU之间的X2接口汇报当前的位置信息。
如图4所示，在本公开实施例中，可选地，所述V2X业务上行控制面信令处理系统装置200还包括：
保存单元250，设置为若所述UE的当前的位置信息在所述第一RSU下获取的，将所述UE的当前的位置信息在所述UE中进行保存；
所述汇报单元，包括：第二汇报子单元2410，设置为当所述UE与所述第二RSU建立RRC连接后，将保存于所述UE中的所述当前的位置信息通过所述第一RSU和所述第二RSU之间的X2接口进行汇报；
或者，
所述汇报单元包括第三汇报子单元2420，设置为在所述UE断开与所述第一RSU的连接之前，将保存在所述UE中的当前的位置信息通过所述第一RSU和所述第二RSU之间的X2接口进行汇报；
或者，
所述汇报单元包括广播子单元2430，设置为以广播方式将所述当前的位置信息进行广播，其中，所述第一RSU和所述第二RSU上配置了PC5接口，在接收到保存在所述UE中的当前的位置信息之后，通过与所述eNB之间的X2接口汇报所述当前的位置信息。
在本公开实施例中，可选地，所述汇报单元还包括第四汇报子单元，设置为在进行切换的过程中，若所述UE的GNSS或其他定位信息失效，通过RSU与基站之间的X2接口，将前一RSU cell ID和/或已经选择到的RSU cell ID汇报给所述eNB。
实施例三
本公开实施例三还提供了一种非瞬时性计算机可读存储介质，所述非瞬时性计算机可读存储介质存储有计算机可执行指令，该计算机可执行指令用于执行上述实施例中的任意一种V2X业务上行控制面信令处理方法。
实施例四
本公开实施例四公开了一种用户终端的硬件结构示意图，如图5所示，该用户终端包括：
一个或多个处理器310，图5中以一个处理器310为例；
存储器320；
所述用户终端还可以包括：输入装置330和输出装置340。
所述设备中的处理器310、存储器320、输入装置330和输出装置340可以通过总线或者其他方式连接，图5中以通过总线连接为例。
存储器320作为一种非瞬时性计算机可读存储介质，可用于存储软件程序、计算机可执行程序以及模块，如本公开实施例中的V2X业务上行控制面信令处理方法对应的程序指令/模块(例如，图3示出的接收单元210，启动单元220，选择单元230和汇报单元240)。处理器310通过运行存储在存储器320中的软件程序、指令以及模块，从而执行服务器的各种功能应用以及数据处理，即实现上述方法实施例的V2X业务上行控制面信令处理方法。
存储器320可以包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需要的应用程序；存储数据区可存储根据终端设备的使用所创建的数据等。此外，存储器320可以包括高速随机存取存储器，还可以包括非瞬时性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实施例中，存储器320可选包括相对于处理器320远程设置的存储器，这些远程存储器可以通过网络连接至终端设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
输入装置330可用于接收输入的数字或字符信息，以及产生与终端的用户设置以及功能控制有关的键信号输入。输出装置340可包括显示屏等显示设备。
所述一个或者多个模块存储在所述存储器320中，当被所述一个或者多个处理器310执行时，执行上述方法实施例中的V2X业务上行控制面信令处理方法。
以上结合附图详细说明了本公开的技术方案，本公开提出了一种针对V2X业务上行控制面信令处理的技术方案，通过引入基站对上行信令减少的指示机制，使UE为了节省宏小区上行资源而优先选择驻留宏小区或者接入RSU控制的 小小区，并通过RSU之间以及RSU与基站之间的协作，将上行汇报信令从空口上进行卸载，减少控制面信令开销，从而实现提高整体无线资源的利用率的目的。
以上所述仅为本公开的可选实施例而已，并不用于限制本公开，对于本领域的技术人员来说，本公开可以有各种更改和变化。
工业实用性
本公开实施例通过引入基站对上行信令减少的指示机制，使UE为了节省宏小区上行资源而优先选择驻留在宏小区或者接入由多个RSU控制的小小区，并通过RSU之间以及RSU与基站之间的协作，将上行汇报信令从空口上进行卸载，减少控制面信令开销，提高整体无线资源的利用率。

Claims (13)

  1. 一种V2X业务上行控制面信令处理方法，适用于终端UE，该方法包括：
    接收基站在第一无线资源控制RRC信令或第二RRC信令中指示的上行信令减少机制，其中，所述第一RRC信令用于发送系统信息广播中的系统信息；启动上行信令减少机制；
    基于宏小区上行资源，选择驻留在宏小区或选择接入至由多个路侧单元RSU控制的小小区；以及
    通过所述多个RSU之间的X2接口，以及所述RSU与所述基站之间的X2接口汇报当前的位置信息。
  2. 根据权利要求1所述的方法，所述方法还包括：
    当基站未在第一RRC信令或第二RRC信令中指示上行信令减少机制时，根据移动性状态维护以及小区选择与切换功能，选择与宏小区或者与RSU控制的小小区建立RRC连接。
  3. 根据权利要求1所述的方法，当所述UE为空闲态的UE，所述基站和所述RSU对各自的跟踪区TA进行规划，使所述宏小区和所述RSU的跟踪区更新TAU为同样的TAU，若所述宏小区和所述RSU的跟踪区TA不同时，所述方法还包括：
    所述UE接收所述基站和所述RSU配置给所述UE的跟踪区标识符列表TAI list；
    其中，所述UE的TAI list中包括所述基站配置给所述宏小区的TA，和所述RSU配置给所述RSU的TA，且所述宏小区的TA与所述RSU的TA不同。
  4. 根据权利要求1所述的方法，所述方法还包括：
    当所述UE为连接态的UE，且当所述UE在第一RSU覆盖的路线区域和所述第二RSU覆盖的路线区域之间进行切换时，通过所述第一RSU和所述第二RSU之间的X2接口汇报当前的位置信息。
  5. 根据权利要求4所述的方法，所述方法还包括：
    若所述UE的当前的位置信息是在所述第一RSU下获取的，将所述UE的当前的位置信息在所述UE中进行保存；
    当所述UE与所述第二RSU建立RRC连接后，将保存于所述UE中的当前的位置信息通过第一RSU和第二RSU之间的X2接口进行汇报；或者，
    在断开与所述第一RSU的连接之前，将保存于所述UE中的当前的位置信息通过所述第一RSU和所述第二RSU之间的X2接口进行汇报；或者，
    以广播方式将所述当前的位置信息进行广播，其中，所述第一RSU和所述 第二RSU上配置了PC5接口，在接收到保存在所述UE中的当前的位置信息之后，通过与所述基站之间的X2接口汇报所述当前的位置信息。
  6. 根据权利要求1-5中任意一项所述的方法，所述方法还包括：
    在进行切换的过程中，若所述UE的全球卫星导航系统GNSS或其他定位信息失效，通过RSU与基站之间的X2接口，将前一RSU的小区识别码cell ID和/或已经选择到的RSU cell ID汇报给所述基站。
  7. 一种V2X业务上行控制面信令处理装置，适用于用户终端UE，包括：接收单元、启动单元、选择单元和汇报单元，其中，
    所述接收单元，设置为接收第一无线资源控制RRC信令或第二RRC信令中指示的上行信令减少机制，其中，所述第一RRC信令用于发送系统信息广播中的系统信息；
    启动单元，设置为启动上行信令减少机制；
    选择单元，设置为基于宏小区上行资源选择驻留在宏小区或选择接入至由多个路侧单元RSU控制的小小区；以及
    汇报单元，设置为通过所述多个RSU之间的X2接口，以及所述RSU与所述基站之间的X2接口汇报当前的位置信息。
  8. 根据权利要求7所述的装置，其特征在于，当所述UE为空闲态的UE，所述基站对该基站的跟踪区TA进行规划，且所述RSU对该RSU的TA进行规划，以使所述宏小区和所述RSU的跟踪区更新TAU相同，若所述宏小区和所述RSU的TA不同时：
    所述接收单元，设置为接收所述基站和所述RSU配置给所述UE的跟踪区标识符列表TAI list，所述UE的TAI list中包括所述基站配置给所述宏小区的TA，和所述RSU配置给所述RSU的TA，且所述宏小区的TA与所述RSU的TA不同。
  9. 根据权利要求7所述的装置，其中，当所述UE为连接态的UE时，所述汇报单元包括第一汇报子单元，其中
    第一汇报子单元，设置为在第一RSU覆盖的路线区域和所述第二RSU覆盖的路线区域之间进行切换时，通过所述第一RSU和所述第二RSU之间的X2接口汇报当前的位置信息。
  10. 根据权利要求9所述的装置，所述装置还包括：
    保存单元，设置为若所述UE的当前的位置信息在所述第一RSU下获取的， 将所述UE的当前的位置信息在所述UE中进行保存；
    所述汇报单元包括第二汇报子单元，设置为当所述UE与所述第二RSU建立RRC连接后，将保存于所述UE中的当前的位置信息通过第一RSU和第二RSU之间的X2接口进行汇报；
    或者，
    所述汇报单元包括第三汇报子单元，设置为在所述UE断开与所述第一RSU的连接之前，将保存在所述UE中的当前的位置信息通过所述第一RSU和所述第二RSU之间的X2接口进行汇报；
    或者，
    所述汇报单元包括广播子单元，设置为以广播方式将所述当前的位置信息进行广播，其中，所述第一RSU和所述第二RSU上配置了PC5接口，在接收到保存在所述UE中的当前的位置信息之后，通过与所述基站之间的X2接口汇报所述当前的位置信息。
  11. 根据权利要求7-10中任意一项所述的装置，其中，所述汇报单元包括第四汇报子单元，其中：
    第四汇报子单元，设置为在进行切换的过程中，若所述UE的全球卫星导航系统GNSS或其他定位信息失效，通过RSU与基站之间的X2接口，将前一RSU的小区识别码cell ID和/或已经选择到的RSU cell ID汇报给所述基站。
  12. 一种终端，包括权利要求7-11中任意一项所述的V2X业务上行控制面信令处理装置。
  13. 一种非瞬时性计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行权利要求1-6任一项的所述的V2X业务上行控制面信令处理方法。
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