WO2020088519A1 - 资源分配方法及通信设备 - Google Patents

资源分配方法及通信设备 Download PDF

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Publication number
WO2020088519A1
WO2020088519A1 PCT/CN2019/114329 CN2019114329W WO2020088519A1 WO 2020088519 A1 WO2020088519 A1 WO 2020088519A1 CN 2019114329 W CN2019114329 W CN 2019114329W WO 2020088519 A1 WO2020088519 A1 WO 2020088519A1
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Prior art keywords
terminal
resource allocation
context information
allocation method
message
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PCT/CN2019/114329
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English (en)
French (fr)
Inventor
汪颖
赵亚利
孙建成
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电信科学技术研究院有限公司
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Priority claimed from CN201911025734.4A external-priority patent/CN111148224B/zh
Application filed by 电信科学技术研究院有限公司 filed Critical 电信科学技术研究院有限公司
Priority to EP19879471.1A priority Critical patent/EP3852455B1/en
Priority to US17/285,766 priority patent/US20210392636A1/en
Priority to KR1020217015018A priority patent/KR102643911B1/ko
Publication of WO2020088519A1 publication Critical patent/WO2020088519A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/51Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0278Traffic management, e.g. flow control or congestion control using buffer status reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08Upper layer protocols
    • H04W80/12Application layer protocols, e.g. WAP [Wireless Application Protocol]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices
    • H04W88/085Access point devices with remote components
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/04Interfaces between hierarchically different network devices
    • H04W92/12Interfaces between hierarchically different network devices between access points and access point controllers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/16Interfaces between hierarchically similar devices
    • H04W92/18Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present disclosure relates to the technical field of communication applications, and in particular, to a resource allocation method and communication equipment.
  • 5G New Radio (NR) system direct communication (Sind Link, SL) interface supports network scheduling resource allocation mode and terminal self-selection resource allocation mode.
  • NR 5G New Radio
  • gNB 5G base station
  • UE User Equipment
  • the NR system also supports a centralized architecture (gNB is separated into two logical nodes, a central node CU and a distributed node DU), but there is no relevant solution to how to design a reasonable SL resource allocation mechanism under the CU-DU separation architecture.
  • the purpose of the present disclosure is to provide a resource allocation method and a communication device, to solve the problem of how to design a reasonable SL resource allocation mechanism under the CU-DU separation architecture without a related solution.
  • the present disclosure provides a resource allocation method, which is applied to a base station.
  • the base station includes a central node CU and a distributed node DU connected to the CU.
  • the method includes:
  • the DU determines a direct communication SL resource allocation method
  • the DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information.
  • the DU determines the direct communication SL resource allocation method, including:
  • the DU determines the SL resource allocation method according to the request message of the terminal and the local strategy.
  • the SL resource allocation method determined by the DU is a resource allocation method independently selected by the terminal;
  • the DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information, including:
  • the DU allocates an SL resource pool to the terminal according to the terminal V2X context information and the direct communication terminal message.
  • the DU allocates the SL resource pool to the terminal according to the terminal V2X context information and the direct communication terminal message, it also includes:
  • the DU obtains part or all of the content of the direct communication terminal message through the F1 application protocol message sent by the CU.
  • part of the content in the direct communication terminal message includes: at least one of frequency, service ID and terminal V2X context information.
  • the SL resource allocation method determined by the DU is a network scheduling resource allocation method
  • the DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information, including:
  • the DU After receiving the terminal scheduling request SR, the DU allocates uplink scheduling permission resources according to the saved terminal V2X context information and sends them to the terminal;
  • the DU After receiving the buffer status report BSR sent by the terminal, the DU allocates SL resources to the terminal according to the saved terminal V2X context information.
  • the DU after receiving the terminal scheduling request SR, the DU, according to the saved terminal V2X context information, before allocating the uplink scheduling permission resource and sending it to the terminal, further includes:
  • the DU obtains the terminal V2X context information sent by the CU.
  • the terminal V2X context information is sent by the CU through the terminal context management process of the F1 application protocol when the terminal initially accesses the network;
  • the terminal V2X context information is sent by the CU through the F1 application protocol related message after the terminal sends the direct communication terminal message.
  • the SL resource allocation method determined by the DU is a network scheduling resource allocation method
  • the DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information, including:
  • the DU obtains the semi-persistent scheduling SPS auxiliary information related to the terminal V2X context information sent by the CU;
  • the DU generates SPS configuration information according to the saved terminal V2X context information and SPS auxiliary information and sends it to the CU;
  • the DU informs the terminal of the SPS resource configuration information.
  • the terminal V2X context information includes at least one of the following:
  • V2X authorization authorization information the maximum rate of UE convergence of the direct communication interface; the mapping relationship between the transmission configuration table of the direct communication interface and the target L2 identification; the QoS parameters of the service flow; the mapping relationship between the SR resources of the Uu interface.
  • an embodiment of the present disclosure also provides a communication device, the communication device is a base station, the base station includes a central node CU and a distributed node DU connected to the CU, and further includes: a transceiver and a memory , A processor, and a program stored on a memory and executable on the processor, and the processor implements the following steps when executing the program:
  • the DU determines the direct communication SL resource allocation method
  • the DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information.
  • the processor also implements the following steps when executing the program:
  • the DU determines the SL resource allocation method according to the terminal's request message and local strategy.
  • the SL resource allocation method determined by the DU is a resource allocation method independently selected by the terminal;
  • the processor also implements the following steps when executing the program:
  • the DU allocates an SL resource pool to the terminal according to the terminal V2X context information and the direct communication terminal message.
  • the processor also implements the following steps when executing the program:
  • the F1 application protocol message sent by the DU through the CU acquires part or all of the content of the direct communication terminal message.
  • part of the content in the direct communication terminal message includes: at least one of frequency, service ID and terminal V2X context information.
  • the SL resource allocation method determined by the DU is a network scheduling resource allocation method
  • the processor also implements the following steps when executing the program:
  • the DU After receiving the terminal scheduling request SR, the DU allocates uplink scheduling permission resources according to the saved terminal V2X context information and sends them to the terminal;
  • the DU After receiving the buffer status report BSR sent by the terminal, the DU allocates SL resources to the terminal according to the saved terminal V2X context information.
  • the processor also implements the following steps when executing the program:
  • the DU obtains the terminal V2X context information sent by the CU.
  • the terminal V2X context information is sent by the CU through the terminal context management process of the F1 application protocol when the terminal initially accesses the network;
  • the terminal V2X context information is sent by the CU through the F1 application protocol related message after the terminal sends the direct communication terminal message.
  • the SL resource allocation method determined by the DU is a network scheduling resource allocation method
  • the processor also implements the following steps when executing the program:
  • the DU Acquiring, by the DU, the semi-persistent scheduling SPS auxiliary information related to the terminal V2X context information sent by the CU;
  • the DU generates SPS configuration information according to the saved terminal V2X context information and SPS auxiliary information and sends it to the CU;
  • the DU After the CU notifies the terminal of the SPS configuration information, the DU notifies the terminal of the SPS resource configuration information.
  • the terminal V2X context information includes at least one of the following:
  • V2X authorization authorization information the maximum rate of UE convergence of the direct communication interface; the mapping relationship between the transmission configuration table of the direct communication interface and the target L2 identification; the QoS parameters of the service flow;
  • an embodiment of the present disclosure also provides a computer-readable storage medium on which a computer program is stored, which when executed by a processor implements the steps of the resource allocation method described above.
  • an embodiment of the present disclosure also provides a communication device, where the communication device is a base station, and the base station includes a central node CU and a distributed node DU connected to the CU, including:
  • a determining module configured to determine a direct communication SL resource allocation method through the DU
  • the allocation module is configured to allocate SL resources to the terminal through the DU according to the determined resource allocation method and terminal context information.
  • the SL resource allocation method determined by the DU is a resource allocation method independently selected by the terminal;
  • the allocation module is used to allocate an SL resource pool to the terminal through the CU or the DU according to the terminal V2X context information and the direct communication terminal message.
  • the above communication equipment also includes:
  • the first obtaining module is used for the DU to obtain the F1 application protocol message sent by the DU through the CU before the SL resource pool is allocated to the terminal according to the terminal V2X context information and the direct communication terminal message. Part or all of the content.
  • the SL resource allocation method determined by the DU is a network scheduling resource allocation method
  • the distribution module includes:
  • the first sending submodule is used for the DU to allocate the uplink scheduling permission resource according to the saved terminal V2X context information and send it to the terminal after receiving the terminal scheduling request SR;
  • the allocation submodule is used for the DU to allocate SL resources to the terminal according to the saved terminal V2X context information after receiving the buffer status report BSR sent by the terminal.
  • the SL resource allocation method determined by the DU is a network scheduling resource allocation method
  • the distribution module includes:
  • the notification submodule is configured to notify the terminal of the SPS resource configuration information through the DU after the CU notifies the terminal of the SPS configuration information.
  • the DU determines the direct communication SL resource allocation method; the DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information, thereby achieving reasonable design under the CU-DU separation architecture
  • the purpose of the SL resource allocation mechanism is the reason for the SL resource allocation mechanism.
  • FIG. 1 is a structural diagram of a network system applicable to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of separating gNB into two nodes of gNB-CU and gNB-DU in an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart of a resource allocation method according to an embodiment of the present disclosure.
  • FIG. 4 is a first interaction schematic diagram of a resource allocation method according to an embodiment of the present disclosure.
  • FIG. 5 is a second interaction schematic diagram of a resource allocation method according to an embodiment of the present disclosure.
  • FIG. 6 is a third interaction schematic diagram of a resource allocation method according to an embodiment of the present disclosure.
  • FIG. 7 is a fourth interaction schematic diagram of a resource allocation method according to an embodiment of the present disclosure.
  • FIG. 8 is a structural block diagram of a communication device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic block diagram of a communication device according to an embodiment of the present disclosure.
  • the radio access network NG-RAN is composed of two logical nodes: 5g base station (gNB) and LTE evolved base station (ng-eNB).
  • GNB is the termination of the agreement between the NR control plane and user plane provided to the UE.
  • Point, ng-eNB is the termination point of the agreement between the E-UTRA control plane and user plane provided to the UE.
  • the connection between gNB, ng-eNB, and between gNB and ng-eNB is through Xn interface.
  • the connection between NG-RAN and 5GC is through the NG interface, and the access and mobility management function AMF is the NG-C interface, and the user plane anchor UPF is the NG-U interface.
  • the NG interface supports multiple pairs Multiple connection methods.
  • gNB can be further separated into two nodes: gNB-CU and gNB-DU.
  • the NR-RAN system supports a centralized architecture.
  • the network side needs to consider how to support the SL resource allocation mechanism.
  • an embodiment of the present disclosure provides a resource allocation method applied to a base station.
  • the base station includes a central node CU and a distributed node DU connected to the CU.
  • the method includes:
  • Step 301 The DU determines the direct communication SL resource allocation method.
  • the DU determines the SL resource allocation method according to the terminal's request message and local strategy.
  • the DU obtains part or all of the content in the direct communication terminal message through the CU, and the DU determines the SL according to the received terminal request message and local policy Resource allocation method, and inform the terminal through RRC reconfiguration message.
  • the above-mentioned direct communication SL resource allocation method includes a resource allocation method independently selected by the terminal and a network allocation resource allocation method.
  • the resource allocation method of network scheduling is that the base station allocates resources required for data transmission to the terminal device, and the terminal performs downlink data reception or uplink data transmission according to the scheduling command of the base station.
  • Two scheduling methods are supported, dynamic scheduling SR / BSR and SPS (Semi-Persistent Scheduling, semi-persistent scheduling).
  • Dynamic scheduling is suitable for services where the arrival time of service data is relatively random or the size of the data packet is irregular:
  • Uplink data transmission is scheduled by the base station.
  • the base station scheduler determines the uplink resource allocation, it will notify the terminal through an uplink scheduling grant (UL grant).
  • the basis for the base station scheduler to allocate uplink resources is the amount of uplink data to be sent by the terminal, that is, the buffer status of the terminal.
  • the buffer is on the terminal side. If the base station wants to know the information, the terminal needs to perform a buffer state report (BSR) to the base station.
  • BSR buffer state report
  • the base station allocates appropriate resource configuration information according to the BSR information and transmits it through the physical downlink control channel PDCCH signaling.
  • PDCCH physical downlink control channel
  • SPS is mainly applicable to the business that the business data cycle is reached and the data packet size is relatively fixed:
  • the terminal reports a terminal assistance message (UE assistance) to the base station, which carries SPS configuration assistance information.
  • the base station performs SL SPS resource allocation according to the reported SPS configuration assistance information of the terminal, and notifies the terminal of the determined SL SPS resource allocation information.
  • UE assistance terminal assistance message
  • the resource allocation mode independently selected by the terminal is that the base station controls the configuration of the resource pool, and the base station completes the dynamic configuration of the UE resource pool through the RRC reconfiguration message.
  • Step 302 The DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information.
  • the CU Based on the resource allocation method of network scheduling, the CU provides the DU with the context information related to the UE.
  • the DU allocates the appropriate SL resource configuration for the UE according to the SL context information provided by the CU.
  • the CU may allocate the SL resource pool configuration according to the UE-related SL context information; or the DU may allocate the SL resource pool configuration according to the UE-related SL context information.
  • the above terminal context information includes: UE V2X context information.
  • the UE V2X context information includes at least one of the following:
  • V2X authorization information the maximum UE convergence rate (PC5 AMBR) of the direct communication interface
  • PC5 AMBR maximum UE convergence rate
  • TX profiles the transmission profile of the direct communication interface
  • target L2 identification the target L2 identification
  • business QoS parameters the Uu interface SR resources Mapping relationship.
  • the DU determines the direct communication SL resource allocation method; the CU and / or the DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information, so as to achieve separation between the CU-DU
  • the DU in step 302 above allocates SL resources to the terminal according to the determined resource allocation method and terminal context information, including:
  • the DU allocates an SL resource pool to the terminal according to the terminal V2X context information and the direct communication terminal message.
  • the DU may allocate the SL resource pool to the terminal according to the terminal V2X context information and the direct communication terminal message.
  • the DU When the DU allocates the SL resource pool to the terminal, the DU also needs to obtain part or all of the content of the direct communication terminal message from the CU. Based on this, the resource allocation method of the embodiment of the present disclosure, the DU is based on the terminal V2X context information and direct Before the communication terminal message, the SL resource pool is allocated to the terminal, it also includes:
  • the DU obtains part or all of the content of the direct communication terminal message through the F1 application protocol message sent by the CU.
  • part of the content in the direct communication terminal message includes: at least one of frequency, service ID and terminal V2X context information.
  • the UE V2X context information includes at least one of the following:
  • V2X authorization information the maximum UE convergence rate (PC5 AMBR) of the direct communication interface
  • PC5 AMBR maximum UE convergence rate
  • TX profiles the transmission profile of the direct communication interface
  • target L2 identification the target L2 identification
  • business QoS parameters the Uu interface SR resources Mapping relationship.
  • the F1 application protocol (F1-AP) message may be a new F1-AP message, or an existing F1-AP message may be multiplexed, such as UE context modification and DL RRC message transmission.
  • Example 1 DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information
  • the process includes:
  • Step 401 The terminal sends a direct communication terminal message to the CU.
  • Step 402 The DU obtains part or all of the content in the direct communication terminal message through the CU.
  • the DU determines the SL resource allocation mode as the terminal's autonomous resource allocation mode according to the received terminal request information and the local strategy.
  • Step 403 The CU initiates an F1-AP UE resource request message to the DU.
  • the F1-AP UE SL resource request message may carry all or part of the content in the direct communication terminal message (Sidelink UE information), such as frequency, service ID, UE V2X context and other information.
  • the UE V2X context information here can also be carried to the DU through the F1-AP UE context establishment message when the UE initially accesses the network.
  • the UE V2X context information includes at least one of the following:
  • V2X authorization information the maximum UE convergence rate (PC5 AMBR) of the direct communication interface
  • PC5 AMBR maximum UE convergence rate
  • TX profiles the transmission profile of the direct communication interface
  • target L2 identification the target L2 identification
  • business QoS parameters the Uu interface SR resources Mapping relationship.
  • Step 404 The DU allocates the appropriate SL resource pool configuration to the terminal according to the information in the UE V2X context information and the F1-AP UE SL resource request message, and returns the SL resource pool configuration information to the CU through the F1-APUE SL resource configuration message.
  • the F1-AP message in step 403 and step 404 may be a new F1-AP message, or an existing F1-AP message may be multiplexed, such as UE context modification and DL RRC message transmission.
  • Step 405 The CU notifies the UE of the SL resource pool configuration information through an RRC reconfiguration message.
  • the UE may perform data transmission on the allocated SL resource pool.
  • the CU initiates an F1-AP UE SL resource request message to the DU.
  • the DU allocates the appropriate SL resource pool configuration to the terminal based on the UE V2X context information and the information in the F1-AP UE SL resource request message.
  • the APUE SL resource configuration message returns the SL resource pool configuration information to the CU.
  • Example 2 The CU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information;
  • the process includes:
  • Step 501 The terminal sends a direct communication terminal message to the CU.
  • Step 502 The DU obtains part or all of the content in the direct communication terminal message through the CU.
  • the DU determines the SL resource allocation mode as the terminal's autonomous resource selection mode according to the received terminal request information and local policies.
  • Step 503 The DU allocates the appropriate SL resource pool configuration to the terminal according to the UE V2X context information and the direct communication terminal message.
  • the UE V2X context information includes at least one of the following:
  • V2X authorization information the maximum UE convergence rate (PC5 AMBR) of the direct communication interface
  • PC5 AMBR maximum UE convergence rate
  • TX profiles the transmission profile of the direct communication interface
  • target L2 identification the target L2 identification
  • business QoS parameters the Uu interface SR resources Mapping relationship.
  • Step 504 The DU sends the SL resource pool configuration information to the CU, and the CU notifies the UE of the SL resource pool configuration information through an RRC reconfiguration message.
  • the UE may perform data transmission on the allocated SL resource pool.
  • the CU allocates the appropriate SL resource pool configuration to the terminal according to the UE V2X context information and the direct communication terminal message.
  • the DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information, including:
  • the DU After receiving the terminal scheduling request SR, the DU allocates uplink scheduling permission resources according to the saved terminal V2X context information and sends them to the terminal;
  • the DU After receiving the buffer status report BSR sent by the terminal, the DU allocates SL resources to the terminal according to the saved terminal V2X context information.
  • the DU after receiving the terminal scheduling request SR, the DU, according to the saved terminal V2X context information, before allocating the uplink scheduling permission resource and sending it to the terminal, further includes:
  • the terminal V2X context information is sent by the CU through the terminal context management process of the F1 application protocol when the terminal initially accesses the network;
  • the terminal V2X context information is sent by the CU through the F1 application protocol related message after the terminal sends the direct communication terminal message.
  • the UE V2X context information includes at least one of the following:
  • V2X authorization information UE convergence maximum rate of direct communication interface (PC5 AMBR); mapping relationship between transmission profile of direct communication interface (TX profiles) and target L2 identification (Destination L2 IDs); business QoS parameters; Uu interface Mapping relationship.
  • PC5 AMBR convergence maximum rate of direct communication interface
  • TX profiles transmission profile of direct communication interface
  • target L2 identification Destination L2 IDs
  • business QoS parameters Uu interface Mapping relationship.
  • the process includes:
  • Step 601 The terminal sends a direct communication terminal message to the CU.
  • Step 602 The DU obtains part or all of the content in the direct communication terminal message through the CU.
  • the DU determines the SL resource allocation method as the network scheduling resource allocation method according to the received terminal request information and local policies.
  • Step 603 The DU sends the SL resource pool configuration information to the CU, and the CU notifies the UE of the SL resource allocation method through an RRC reconfiguration message.
  • Step 604 The UE initiates the SR process.
  • Step 605 The DU allocates appropriate UL grant resources to the UE according to the UE V2X context information, and the DU notifies the UE of the UL grant resource configuration through PDCCH signaling.
  • the UE V2X context information here can be carried by the CU to the DU through the F1-AP UE context establishment message when the UE initially accesses the network, or it can be carried by the CU to the DU through the F1-AP DL RRC message transmission process of step 603 ,
  • the UE V2X context information includes at least one of the following:
  • V2X authorization information the maximum UE convergence rate (PC5 AMBR) of the direct communication interface
  • PC5 AMBR maximum UE convergence rate
  • TX profiles the transmission profile of the direct communication interface
  • target L2 identification the target L2 identification
  • business QoS parameters the Uu interface SR resources Mapping relationship.
  • Step 606 The UE initiates a BSR process to the network, and the DU allocates appropriate SL resources to the UE according to the V2X context information of the UE.
  • Step 607 The DU notifies the UE of the SL resource configuration through PDCCH signaling.
  • the UE may perform data transmission on the allocated SL resources.
  • the DU allocates appropriate SL resources to the UE based on the UE V2X context information.
  • the DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information, including:
  • the DU obtains the semi-persistent scheduling SPS auxiliary information related to the terminal V2X context information sent by the CU;
  • the DU generates SPS configuration information according to the saved terminal V2X context information and SPS auxiliary information and sends it to the CU;
  • the DU informs the terminal of the SPS resource configuration information.
  • the process includes:
  • Step 701 The terminal sends a direct communication terminal message to the CU.
  • Step 702 The DU obtains part or all of the content in the direct communication terminal message through the CU.
  • the DU determines the SL resource allocation method as the network scheduling resource allocation method according to the received terminal request information and the local strategy.
  • Step 703 The UE reports the UE assistance information carrying the SPS configuration auxiliary information to the CU.
  • Step 704 The CU initiates an F1-AP UE SPS configuration request message, and transmits SPS auxiliary information related to UE V2X to the DU.
  • the SPS auxiliary information related to the UE V2X may include information such as a transmission pattern.
  • Step 705 The DU generates appropriate SPS configuration information according to the UE V2X context information and SPS configuration auxiliary information, and returns it to the CU through the F1-AP message.
  • the UE V2X context information here can be carried by the CU to the DU through the F1-AP UE context establishment message when the UE initially accesses the network.
  • the UE V2X context information includes at least one of the following:
  • V2X authorization information the maximum UE convergence rate (PC5 AMBR) of the direct communication interface
  • PC5 AMBR maximum UE convergence rate
  • TX profiles the transmission profile of the direct communication interface
  • target L2 identification the target L2 identification
  • business QoS parameters the Uu interface SR resources Mapping relationship.
  • the F1-AP messages in the above steps 704 and 705 may be new F1-AP messages, or multiplex existing F1-AP messages, such as UE context modification and DL RRC message transmission.
  • Step 705a The CU may trigger the DU to send PDCCH signaling through the F1-AP message.
  • This step is optional.
  • Step 706 The CU notifies the UE of the SPS configuration information through the RRC reconfiguration message.
  • Step 707 The DU sends PDCCH signaling to inform the UE of specific SPS resource configuration information.
  • the UE may perform data transmission on the allocated SL resource pool.
  • the DU determines the direct communication SL resource allocation method; the DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information, thereby achieving reasonable design under the CU-DU separation architecture
  • the purpose of the SL resource allocation mechanism is the reason for the SL resource allocation mechanism.
  • an embodiment of the present disclosure also provides a communication device.
  • the communication device is specifically a base station.
  • the base station includes a central node CU and a distributed node DU connected to the CU, and further includes: a memory 820, A processor 800, a transceiver 810, a bus interface, and a computer program stored on the memory 820 and executable on the processor 800.
  • the processor 800 is used to read the program in the memory 820 and perform the following processes:
  • the DU determines the direct communication SL resource allocation method
  • the DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information.
  • the bus architecture may include any number of interconnected buses and bridges, specifically, one or more processors represented by the processor 800 and various circuits of the memory represented by the memory 820 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are well known in the art, and therefore, they will not be further described in this article.
  • the bus interface provides an interface.
  • the transceiver 810 may be a plurality of elements, including a transmitter and a transceiver, and provides a unit for communicating with various other devices on a transmission medium.
  • the processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 when performing operations.
  • processor 800 executes the computer program
  • the following steps may also be implemented:
  • the DU determines the SL resource allocation method according to the terminal's request message and local strategy.
  • the SL resource allocation method determined by the DU is a resource allocation method independently selected by the terminal;
  • the DU allocates an SL resource pool to the terminal according to the terminal V2X context information and the direct communication terminal message.
  • processor 800 executes the computer program
  • the following steps may also be implemented:
  • the F1 application protocol message sent by the DU through the CU acquires part or all of the content of the direct communication terminal message.
  • part of the content in the direct communication terminal message includes: at least one of frequency, service ID and terminal V2X context information.
  • the SL resource allocation method determined by the DU is a network scheduling resource allocation method
  • the DU After receiving the terminal scheduling request SR, the DU allocates uplink scheduling permission resources according to the saved terminal V2X context information and sends them to the terminal;
  • the DU After receiving the buffer status report BSR sent by the terminal, the DU allocates SL resources to the terminal according to the saved terminal V2X context information.
  • processor 800 executes the computer program
  • the following steps may also be implemented:
  • the DU obtains the terminal V2X context information sent by the CU.
  • the terminal V2X context information is sent by the CU through the terminal context management process of the F1 application protocol when the terminal initially accesses the network;
  • the terminal V2X context information is sent by the CU through the F1 application protocol related message after the terminal sends the direct communication terminal message.
  • the SL resource allocation method determined by the DU is a network scheduling resource allocation method
  • the DU Acquiring, by the DU, the semi-persistent scheduling SPS auxiliary information related to the terminal V2X context information sent by the CU;
  • the DU generates SPS configuration information according to the saved terminal V2X context information and SPS auxiliary information and sends it to the CU;
  • the DU After the CU notifies the terminal of the SPS configuration information, the DU notifies the terminal of the SPS resource configuration information.
  • the terminal V2X context information includes at least one of the following:
  • V2X authorization authorization information the maximum rate of UE convergence of the direct communication interface; the mapping relationship between the transmission configuration table of the direct communication interface and the target L2 identification; the QoS parameters of the service flow; the mapping relationship between the SR resources of the Uu interface.
  • the DU determines the direct communication SL resource allocation method; the DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information, thereby realizing a reasonable design under the CU-DU separation architecture
  • the purpose of SL resource allocation mechanism is the reason for SL resource allocation mechanism.
  • a computer-readable storage medium on which a computer program is stored, and when the program is executed by the processor, the following steps are realized:
  • the DU determines the direct communication SL resource allocation method
  • the DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information.
  • an embodiment of the present disclosure also provides a communication device.
  • the communication device is a base station.
  • the base station includes a central node CU and a distributed node DU connected to the CU, including:
  • a determining module 901, configured to determine a direct communication SL resource allocation method through the DU;
  • the allocation module 902 is configured to allocate SL resources to the terminal through the DU according to the determined resource allocation method and terminal context information.
  • the determination module is used to determine the SL resource allocation method through the DU according to the terminal's request message and the local policy.
  • the SL resource allocation method determined by the DU is a resource allocation method independently selected by the terminal;
  • the allocation module is used to allocate an SL resource pool to the terminal through the DU according to the terminal V2X context information and the direct communication terminal message.
  • the first obtaining module is used for the DU to obtain the F1 application protocol message sent by the DU through the CU before the SL resource pool is allocated to the terminal according to the terminal V2X context information and the direct communication terminal message. Part or all of the content.
  • part of the content in the direct communication terminal message includes: at least one of frequency, service ID, and terminal V2X context information.
  • the SL resource allocation method determined by the DU is the resource allocation method scheduled by the network
  • the distribution module includes:
  • the first sending submodule is used for the DU to allocate uplink scheduling permission resources according to the saved terminal V2X context information and send them to the terminal after receiving the terminal scheduling request SR;
  • the allocation submodule is used for the DU to allocate SL resources to the terminal according to the saved terminal V2X context information after receiving the buffer status report BSR sent by the terminal.
  • the second obtaining module is used by the DU to obtain the terminal V2X context information sent by the CU.
  • the terminal V2X context information is sent by the CU through the F1 application protocol terminal context management process when the terminal initially accesses the network;
  • the terminal V2X context information is sent by the CU through the F1 application protocol related message after the terminal sends the direct communication terminal message.
  • the SL resource allocation method determined by the DU is the resource allocation method scheduled by the network
  • the distribution module includes:
  • the notification submodule is configured to notify the terminal of the SPS resource configuration information through the DU after the CU notifies the terminal of the SPS configuration information.
  • the terminal V2X context information includes at least one of the following:
  • V2X authorization authorization information the maximum rate of UE convergence of the direct communication interface; the mapping relationship between the transmission configuration table of the direct communication interface and the target L2 identification; the QoS parameters of the service flow; the mapping relationship between the SR resources of the Uu interface.
  • the DU determines the direct communication SL resource allocation method; the CU and / or the DU allocates SL resources to the terminal according to the determined resource allocation method and terminal context information, thereby implementing the CU-DU separation architecture Under the purpose of designing a reasonable SL resource allocation mechanism.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a division of logical functions.
  • there may be other divisions for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present disclosure essentially or part of the contribution to the related technology or part of the technical solution can be embodied in the form of a software product, the computer software product is stored in a storage medium, including several
  • the instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the foregoing storage media include various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
  • each component or each step can be decomposed and / or recombined.
  • These decompositions and / or recombinations should be regarded as equivalent solutions of the present disclosure.
  • the steps for performing the above-mentioned series of processing can naturally be executed in chronological order in the order described, but it does not necessarily need to be executed in chronological order, and some steps can be executed in parallel or independently of each other.
  • the purpose of the present disclosure can also be achieved by running a program or a group of programs on any computing device.
  • the computing device may be a well-known general-purpose device. Therefore, the object of the present disclosure can also be achieved only by providing a program product containing program code for implementing the method or device. That is, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure.
  • the storage medium may be any known storage medium or any storage medium developed in the future. It should also be noted that, in the device and method of the present disclosure, obviously, each component or each step can be decomposed and / or recombined.
  • the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing device (DSP Device, DSPD), programmable Logic device (Programmable Logic Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, others for performing the functions described in this disclosure Electronic unit or its combination.
  • ASIC Application Specific Integrated Circuits
  • DSP Digital Signal Processing
  • DSP Device digital signal processing device
  • DPD digital signal processing device
  • PLD programmable Logic Device
  • FPGA field programmable gate array
  • controller microcontroller, microprocessor, others for performing the functions described in this disclosure Electronic unit or its combination.
  • the technology described in the embodiments of the present disclosure may be implemented through modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software codes can be stored in the memory and executed by the processor.
  • the memory may be implemented in the processor or external to the processor.

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Abstract

本公开提供了一种资源分配方法及通信设备。本公开的资源分配方法应用于基站,所述基站包括中心节点CU和与所述CU连接的分布式节点DU,所述方法包括:DU确定直接通信SL资源分配方式;所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源。

Description

资源分配方法及通信设备
相关申请的交叉引用
本申请主张在2018年11月1日在中国提交的中国专利申请No.201811294982.4的优先权,以及在2019年10月25日在中国提交的中国专利申请No.201911025734.4的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及通信应用的技术领域,尤其涉及一种资源分配方法及通信设备。
背景技术
5G新空口(New Radio,NR)系统的直接通信(Sind link,SL)接口支持网络调度的资源分配模式和终端自助选择资源分配模式,对于分布式架构(5G基站为gNB),基站可以根据用户设备(User Equipment,UE)的请求,进行合适的SL资源分配。NR系统同时也支持集中式架构(gNB分离为中心节点CU和分布式节点DU两个逻辑节点),但CU-DU分离架构下如何设计合理的SL资源分配机制还没有相关方案。
发明内容
本公开的目的在于提供一种资源分配方法及通信设备,用以解决CU-DU分离架构下如何设计合理的SL资源分配机制还没有相关方案的问题。
为了实现上述目的,本公开提供了一种资源分配方法,应用于基站,所述基站包括中心节点CU和与所述CU连接的分布式节点DU,所述方法包括:
所述DU确定直接通信SL资源分配方式;
所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源。
其中,所述DU确定直接通信SL资源分配方式,包括:
所述DU根据终端的请求消息以及本地策略,确定SL资源分配方式。
其中,所述DU确定的SL资源分配方式为终端自主选择的资源分配方式;
所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源,包括:
所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池。
其中,所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池之前,还包括:
所述DU通过CU发送的F1应用协议消息获取所述直接通信终端消息中的部分或全部内容。
其中,所述直接通信终端消息中的部分内容包括:频率、业务ID和终端V2X上下文信息中的至少一项。
其中,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源,包括:
所述DU接收到终端调度请求SR后,根据保存的终端V2X上下文信息,分配上行调度许可资源并发送给终端;
所述DU接收到终端发送的缓存状态报告BSR后,根据保存的终端V2X上下文信息,为终端分配SL资源。
其中,所述DU接收到终端调度请求SR后,根据保存的终端V2X上下文信息,分配上行调度许可资源并发送给终端之前,还包括:
所述DU获取CU发送的终端V2X上下文信息。
其中,所述终端V2X上下文信息为CU在终端初始接入网络时,通过F1应用协议终端上下文管理过程发送的;
或者,所述终端V2X上下文信息为CU在终端发送直接通信终端消息之后通过F1应用协议相关消息发送的。
其中,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源,包括:
所述DU获取CU发送的与终端V2X上下文信息相关的半持续调度SPS 辅助信息;
所述DU根据保存的终端V2X上下文信息以及SPS辅助信息,生成SPS配置信息并发送给CU;
在所述CU将所述SPS配置信息通知给终端后,所述DU告知终端SPS资源配置信息。
其中,所述终端V2X上下文信息包括以下至少一项:
V2X授权authorization信息;直接通信接口的UE汇聚最大速率;直接通信接口的传输配置表和目标L2标识的映射关系;业务流QoS参数;Uu接口SR资源之间的映射关系。
为了实现上述目的,本公开实施例还提供了一种通信设备,所述通信设备为基站,所述基站包括中心节点CU和与所述CU连接的分布式节点DU,还包括:收发机、存储器、处理器及存储在存储器上并可在处理器上运行的程序,所述处理器执行所述程序时实现以下步骤:
由所述DU确定直接通信SL资源分配方式;
由所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源。
其中,所述处理器执行所述程序时还实现以下步骤:
由所述DU根据终端的请求消息以及本地策略,确定SL资源分配方式。
其中,所述DU确定的SL资源分配方式为终端自主选择的资源分配方式;
所述处理器执行所述程序时还实现以下步骤:
由所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池。
其中,所述处理器执行所述程序时还实现以下步骤:
由所述DU通过CU发送的F1应用协议消息获取所述直接通信终端消息中的部分或全部内容。
其中,所述直接通信终端消息中的部分内容包括:频率、业务ID和终端V2X上下文信息中的至少一项。
其中,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
所述处理器执行所述程序时还实现以下步骤:
由所述DU接收到终端调度请求SR后,根据保存的终端V2X上下文信息,分配上行调度许可资源并发送给终端;
由所述DU接收到终端发送的缓存状态报告BSR后,根据保存的终端V2X上下文信息,为终端分配SL资源。
其中,所述处理器执行所述程序时还实现以下步骤:
由所述DU获取CU发送的终端V2X上下文信息。
其中,所述终端V2X上下文信息为CU在终端初始接入网络时,通过F1应用协议终端上下文管理过程发送的;
或者,所述终端V2X上下文信息为CU在终端发送直接通信终端消息之后通过F1应用协议相关消息发送的。
其中,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
所述处理器执行所述程序时还实现以下步骤:
由所述DU获取CU发送的与终端V2X上下文信息相关的半持续调度SPS辅助信息;
由所述DU根据保存的终端V2X上下文信息以及SPS辅助信息,生成SPS配置信息并发送给CU;
在所述CU将所述SPS配置信息通知给终端后,由所述DU告知终端SPS资源配置信息。
其中,所述终端V2X上下文信息包括以下至少一项:
V2X授权authorization信息;直接通信接口的UE汇聚最大速率;直接通信接口的传输配置表和目标L2标识的映射关系;业务流QoS参数;Uu接口SR资源之间的映射关系。
为了实现上述目的,本公开实施例还提供了一种计算机可读存储介质,其上存储有计算机程序,该计算机程序被处理器执行时实现如上所述资源分配方法的步骤。
为了实现上述目的,本公开实施例还提供了一种通信设备,所述通信设备为基站,所述基站包括中心节点CU和与所述CU连接的分布式节点DU,包括:
确定模块,用于通过所述DU确定直接通信SL资源分配方式;
分配模块,用于通过所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源。
其中,所述DU确定的SL资源分配方式为终端自主选择的资源分配方式;
所述分配模块用于通过所述CU或所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池。
其中,上述通信设备,还包括:
第一获取模块,用于所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池之前,由所述DU通过CU发送的F1应用协议消息获取所述直接通信终端消息中的部分或全部内容。
其中,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
所述分配模块包括:
第一发送子模块,用于所述DU接收到终端调度请求SR后,根据保存的终端V2X上下文信息,分配上行调度许可资源并发送给终端;
分配子模块,用于所述DU接收到终端发送的缓存状态报告BSR后,根据保存的终端V2X上下文信息,为终端分配SL资源。
其中,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
所述分配模块包括:
获取子模块,用于通过所述DU获取CU发送的与终端V2X上下文信息相关的半持续调度SPS辅助信息;
生成子模块,用于通过所述DU根据保存的终端V2X上下文信息以及SPS辅助信息,生成SPS配置信息并发送给CU;
通知子模块,用于在所述CU将所述SPS配置信息通知给终端后,通过所述DU告知终端SPS资源配置信息。
本公开实施例具有以下有益效果:
本公开实施例的上述技术方案,由DU确定直接通信SL资源分配方式;所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源,从而实现在CU-DU分离架构下设计合理的SL资源分配机制的目的。
附图说明
为了更清楚地说明本公开实施例的技术方案,下面将对本公开实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本公开实施例可应用的一种网络系统的结构图;
图2为本公开实施例中gNB分离为gNB-CU和gNB-DU两个节点的结构示意图;
图3为本公开实施例的资源分配方法的流程示意图;
图4为本公开实施例的资源分配方法的第一交互示意图;
图5为本公开实施例的资源分配方法的第二交互示意图;
图6为本公开实施例的资源分配方法的第三交互示意图;
图7为本公开实施例的资源分配方法的第四交互示意图;
图8为本公开实施例的通信设备的结构框图;
图9为本公开实施例的通信设备的模块示意图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例,然而应当理解,可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反,提供这些实施例是为了能够更透彻地理解本公开,并且能够将本公开的范围完整的传达给本领域的技术人员。
本申请的说明书和权利要求书中的术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。说明书以及权利要求中“和/或”表示所连接对象的至少其中之一。
以下描述提供示例而并非限定权利要求中阐述的范围、适用性或者配置。可以对所讨论的要素的功能和布置作出改变而不会脱离本公开的精神和范围。各种示例可恰适地省略、替代、或添加各种规程或组件。例如,可以按不同 于所描述的次序来执行所描述的方法,并且可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
为使本领域技术人员能够更好地理解本公开实施例,下面先对本公开实施例可应用的一种网络系统进行如下说明。
如图1所示,无线接入网络NG-RAN由5g基站(gNB)和LTE演进基站(ng-eNB)两种逻辑节点共同组成,gNB是提供到UE的NR控制平面与用户平面的协议终止点,ng-eNB是提供到UE的E-UTRA控制平面与用户平面的协议终止点。gNB之间、ng-eNB之间,以及gNB和ng-eNB之间通过Xn接口进行连接。NG-RAN与5GC之间通过NG接口进行连接,和接入和移动管理功能AMF之间的是NG-C接口,和用户面锚点UPF之间的是NG-U接口,NG接口支持多对多连接方式。
如图2所示,gNB可以进一步分离为gNB-CU和gNB-DU两个节点。NR-RAN系统支持集中式架构,CU-DU分离场景下,网络侧需要考虑如何支持SL资源分配机制。
如图3所示,本公开实施例提供了一种资源分配方法,应用于基站,所述基站包括中心节点CU和与所述CU连接的分布式节点DU,该方法包括:
步骤301:DU确定直接通信SL资源分配方式。
这里,DU根据终端的请求消息以及本地策略,确定SL资源分配方式。
具体地,CU接收到RRC直接通信终端消息(sidelink UE information)后,DU通过CU获取所述直接通信终端消息中的部分或全部内容,DU根据接收到的终端的请求消息以及本地策略,确定SL资源分配方式,并通过RRC重配消息告知终端。
上述直接通信SL资源分配方式包括终端自主选择的资源分配方式和网络调度的资源分配方式。
其中,网络调度的资源分配方式由基站为终端设备分配数据传输所需的资源,终端根据基站的调度命令进行下行数据接收或者上行数据发送。支持两种调度方式,动态调度SR/BSR和SPS(Semi-Persistent Scheduling,半持续调度)。
动态调度适用于业务数据到达时间比较随机或者数据包大小不规则的业 务:
上行数据传输是由基站调度的,基站调度器确定上行资源分配情况之后会通过上行调度许可(UL grant)通知终端。基站调度器进行上行资源分配的依据是终端要发送的上行数据量,即终端的缓存状态。该缓存在终端侧,基站要想获知该信息,就需要终端向基站进行缓存状态报告(Buffer state report,BSR),基站根据BSR信息分配合适的资源配置信息,通过物理下行控制信道PDCCH信令传送给UE。当终端有BSR触发,但是终端没有UL grant,则会触发调度请求(Scheduling Request,SR)。
SPS主要适用于业务数据周期达到且数据包大小比较固定的业务:
终端向基站上报终端辅助消息(UE assistance information)携带SPS配置辅助信息,基站根据终端的上报的SPS配置辅助信息进行SL SPS资源分配,并将确定的SL SPS资源分配信息通知给终端。
终端自主选择的资源分配模式是由基站控制资源池的配置,基站通过RRC重配消息,完成对UE资源池的动态配置。
步骤302:DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源。
基于网络调度的资源分配方式,CU向DU提供UE SL相关的上下文信息,DU根据CU提供的UE SL上下文信息,为UE分配合适的SL资源配置。基于终端自主选择的资源分配方式,可以由CU根据UE SL相关的上下文信息,分配SL资源池配置;也可以由DU根据UE SL相关的上下文信息,分配SL资源池配置。
上述终端上下文信息包括:UE V2X上下文信息。该UE V2X上下文信息包括以下至少一项:
V2X authorization信息;直接通信接口的UE汇聚最大速率(PC5 AMBR);直接通信接口的传输配置表(TX profiles)和目标L2标识(Destination L2 IDs)的映射关系;业务QoS参数;Uu接口SR资源之间的映射关系。
本公开实施例的资源分配方法,由DU确定直接通信SL资源分配方式;CU和/或所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源,从而实现在CU-DU分离架构下设计合理的SL资源分配机制的目 的。
进一步地,在DU确定的SL资源分配方式为终端自主选择的资源分配方式时;上述步骤302中所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源,包括:
所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池。
本公开实施例中,在DU确定的SL资源分配方式为终端自主选择的资源分配方式时,可以由DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池。
在由DU为终端分配SL资源池时,DU还需从CU获取直接通信终端消息中的部分或全部内容,基于此,本公开实施例的资源分配方法,所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池之前,还包括:
所述DU通过CU发送的F1应用协议消息获取所述直接通信终端消息中的部分或全部内容。
其中,所述直接通信终端消息中的部分内容包括:频率、业务ID和终端V2X上下文信息中的至少一项。
该UE V2X上下文信息包括以下至少一项:
V2X authorization信息;直接通信接口的UE汇聚最大速率(PC5 AMBR);直接通信接口的传输配置表(TX profiles)和目标L2标识(Destination L2 IDs)的映射关系;业务QoS参数;Uu接口SR资源之间的映射关系。
所述F1应用协议(F1-AP)消息可以是新的F1-AP消息,也可以复用F1-AP现有消息,比如UE上下文修改,DL RRC消息传输。
下面结合实例一和实例二来对本公开实施例中终端自主选择的资源分配方式的流程进行说明。
实例一:DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源;
如图4所示,该流程包括:
步骤401:终端向CU发送直接通信终端消息。
步骤402:DU通过CU获取所述直接通信终端消息中的部分或全部内容,DU根据接收到的终端请求信息以及本地的策略决定SL资源分配方式为终端自主选择的资源分配方式。
步骤403:CU向DU发起F1-AP UE SL资源请求消息。
该F1-AP UE SL资源请求消息可以携带直接通信终端消息(Sidelink UE information)中的全部或者部分内容,比如,频率、业务ID、UE V2X上下文等信息。此处的UE V2X上下文信息也可以在UE初始接入网络时,通过F1-AP UE上下文建立消息中携带给DU。
该UE V2X上下文信息包括以下至少一项:
V2X authorization信息;直接通信接口的UE汇聚最大速率(PC5 AMBR);直接通信接口的传输配置表(TX profiles)和目标L2标识(Destination L2 IDs)的映射关系;业务QoS参数;Uu接口SR资源之间的映射关系。
步骤404:DU根据UE V2X上下文信息和F1-AP UE SL资源请求消息中的信息为终端分配合适的SL资源池配置,并通过F1-APUE SL资源配置消息将SL资源池配置信息返回给CU。
其中,步骤403和步骤404中的F1-AP消息可以是新的F1-AP消息,也可以复用F1-AP现有消息,比如UE上下文修改,DL RRC消息传输。
步骤405:CU通过RRC重配消息将SL资源池配置信息告知UE。
后续UE可以在分配的SL资源池上进行数据传输。
该实例一中,CU向DU发起F1-AP UE SL资源请求消息,DU根据UE V2X上下文信息和F1-AP UE SL资源请求消息中的信息为终端分配合适的SL资源池配置,并通过F1-APUE SL资源配置消息将SL资源池配置信息返回给CU。
实例二:CU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源;
如图5所示,该流程包括:
步骤501:终端向CU发送直接通信终端消息。
步骤502:DU通过CU获取所述直接通信终端消息中的部分或全部内容,DU根据接收到的终端请求信息以及本地的策略决定SL资源分配方式为终端 自主选择的资源分配方式。
步骤503:DU根据UE V2X上下文信息和直接通信终端消息为终端分配合适的SL资源池配置。
该UE V2X上下文信息包括以下至少一项:
V2X authorization信息;直接通信接口的UE汇聚最大速率(PC5 AMBR);直接通信接口的传输配置表(TX profiles)和目标L2标识(Destination L2 IDs)的映射关系;业务QoS参数;Uu接口SR资源之间的映射关系。
步骤504:DU将SL资源池配置信息发送到CU,CU通过RRC重配消息将SL资源池配置信息告知UE。
后续UE可以在分配的SL资源池上进行数据传输。
该实例二中,由CU根据UE V2X上下文信息和直接通信终端消息为终端分配合适的SL资源池配置。
进一步地,在DU确定的SL资源分配方式为网络调度的资源分配方式时;上述步骤502中所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源,包括:
所述DU接收到终端调度请求SR后,根据保存的终端V2X上下文信息,分配上行调度许可资源并发送给终端;
所述DU接收到终端发送的缓存状态报告BSR后,根据保存的终端V2X上下文信息,为终端分配SL资源。
进一步地,所述DU接收到终端调度请求SR后,根据保存的终端V2X上下文信息,分配上行调度许可资源并发送给终端之前,还包括:
获取CU发送的终端V2X上下文信息。
所述终端V2X上下文信息为CU在终端初始接入网络时,通过F1应用协议终端上下文管理过程发送的;
或者,所述终端V2X上下文信息为CU在终端发送直接通信终端消息之后通过F1应用协议相关消息发送的。
该UE V2X上下文信息包括以下至少一项:
V2X authorization信息;直接通信接口的UE汇聚最大速率(PC5 AMBR);直接通信接口的传输配置表(TX profiles)和目标L2标识(Destination L2 IDs) 的映射关系;业务QoS参数;Uu接口SR资源之间的映射关系。
下面结合实例三来进行举例说明。
如图6所示,该流程包括:
步骤601:终端向CU发送直接通信终端消息。
步骤602:DU通过CU获取所述直接通信终端消息中的部分或全部内容,DU根据接收到的终端请求信息以及本地的策略决定SL资源分配方式为网络调度的资源分配方式。
步骤603:DU将SL资源池配置信息发送到CU,CU通过RRC重配消息将SL资源分配方式告知UE。
步骤604:UE发起SR过程。
步骤605:DU根据UE V2X上下文信息,为UE分配合适的UL grant资源,DU通过PDCCH信令将UL grant资源配置告知UE。
此处的UE V2X上下文信息可以在UE初始接入网络时,通过F1-AP UE上下文建立消息中由CU携带给DU,也可以通过步骤603的F1-AP DL RRC消息传输过程由CU携带给DU,该UE V2X上下文信息包括以下至少一项:
V2X authorization信息;直接通信接口的UE汇聚最大速率(PC5 AMBR);直接通信接口的传输配置表(TX profiles)和目标L2标识(Destination L2 IDs)的映射关系;业务QoS参数;Uu接口SR资源之间的映射关系。
步骤606:UE向网络发起BSR过程,DU根据UE V2X上下文信息,为UE分配合适的SL资源。
步骤607:DU通过PDCCH信令将SL资源配置告知UE。
后续UE可以在分配的SL资源上进行数据传输。
该网络调度的资源分配方式中,由DU根据UE V2X上下文信息,为UE分配合适的SL资源。
进一步地,在所述DU确定的SL资源分配方式为网络调度的资源分配方式时;上述步骤602中所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源,包括:
所述DU获取CU发送的与终端V2X上下文信息相关的半持续调度SPS辅助信息;
所述DU根据保存的终端V2X上下文信息以及SPS辅助信息,生成SPS配置信息并发送给CU;
在所述CU将所述SPS配置信息通知给终端后,所述DU告知终端SPS资源配置信息。
下面结合实施例四来进行举例说明。
如图7所示,该流程包括:
步骤701:终端向CU发送直接通信终端消息。
步骤702:DU通过CU获取所述直接通信终端消息中的部分或全部内容,DU根据接收到的终端请求信息以及本地的策略决定SL资源分配方式为网络调度的资源分配方式。
步骤703:UE向CU上报UE assistance information消息携带SPS配置辅助信息。
步骤704:CU发起F1-AP UE SPS配置请求消息,将UE V2X相关的SPS辅助信息传递给DU。
该UE V2X相关的SPS辅助信息可包含传输类型(traffic pattern)等信息。
步骤705:DU根据UE V2X上下文信息以及SPS配置辅助信息,生成合适的SPS配置信息,通过F1-AP消息返回给CU。
此处的UE V2X上下文信息可以在UE初始接入网络时,通过F1-AP UE上下文建立消息中由CU携带给DU。该UE V2X上下文信息包括以下至少一项:
V2X authorization信息;直接通信接口的UE汇聚最大速率(PC5 AMBR);直接通信接口的传输配置表(TX profiles)和目标L2标识(Destination L2 IDs)的映射关系;业务QoS参数;Uu接口SR资源之间的映射关系。
上述步骤704和步骤705的F1-AP消息可以是新的F1-AP消息,也可以复用F1-AP现有消息,比如UE上下文修改,DL RRC消息传输。
步骤705a:CU可以通过F1-AP消息触发DU发送PDCCH信令。
该步骤为可选步骤。
步骤706:CU通过RRC重配消息将SPS配置信息告知UE。
步骤707:DU发送PDCCH信令告知UE具体的SPS资源配置信息。
后续UE可以在分配的SL资源池上进行数据传输。
本公开实施例的资源分配方法,由DU确定直接通信SL资源分配方式;所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源,从而实现在CU-DU分离架构下设计合理的SL资源分配机制的目的。
如图8所示,本公开实施例还提供了一种通信设备,该通信设备具体为基站,所述基站包括中心节点CU和与所述CU连接的分布式节点DU,还包括:存储器820、处理器800、收发机810、总线接口及存储在存储器820上并可在处理器800上运行的计算机程序,所述处理器800用于读取存储器820中的程序,执行下列过程:
由所述DU确定直接通信SL资源分配方式;
由所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源。
其中,在图8中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器800代表的一个或多个处理器和存储器820代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机810可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。处理器800负责管理总线架构和通常的处理,存储器820可以存储处理器800在执行操作时所使用的数据。
可选地,所述处理器800执行所述计算机程序时还可实现以下步骤:
由所述DU根据终端的请求消息以及本地策略,确定SL资源分配方式。
可选地,所述DU确定的SL资源分配方式为终端自主选择的资源分配方式;
所述处理器800执行所述计算机程序时还可实现以下步骤:
由所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池。
可选地,所述处理器800执行所述计算机程序时还可实现以下步骤:
由所述DU通过CU发送的F1应用协议消息获取所述直接通信终端消息 中的部分或全部内容。
可选地,所述直接通信终端消息中的部分内容包括:频率、业务ID和终端V2X上下文信息中的至少一项。
可选地,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
所述处理器800执行所述计算机程序时还可实现以下步骤:
由所述DU接收到终端调度请求SR后,根据保存的终端V2X上下文信息,分配上行调度许可资源并发送给终端;
由所述DU接收到终端发送的缓存状态报告BSR后,根据保存的终端V2X上下文信息,为终端分配SL资源。
可选地,所述处理器800执行所述计算机程序时还可实现以下步骤:
由所述DU获取CU发送的终端V2X上下文信息。
可选地,所述终端V2X上下文信息为CU在终端初始接入网络时,通过F1应用协议终端上下文管理过程发送的;
或者,所述终端V2X上下文信息为CU在终端发送直接通信终端消息之后通过F1应用协议相关消息发送的。
可选地,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
所述处理器800执行所述计算机程序时还可实现以下步骤:
由所述DU获取CU发送的与终端V2X上下文信息相关的半持续调度SPS辅助信息;
由所述DU根据保存的终端V2X上下文信息以及SPS辅助信息,生成SPS配置信息并发送给CU;
在所述CU将所述SPS配置信息通知给终端后,由所述DU告知终端SPS资源配置信息。
可选地,所述终端V2X上下文信息包括以下至少一项:
V2X授权authorization信息;直接通信接口的UE汇聚最大速率;直接通信接口的传输配置表和目标L2标识的映射关系;业务流QoS参数;Uu接口SR资源之间的映射关系。
本公开实施例的通信设备,由DU确定直接通信SL资源分配方式;所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源,从而 实现在CU-DU分离架构下设计合理的SL资源分配机制的目的。
在本公开的一些实施例中,还提供了一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现以下步骤:
由DU确定直接通信SL资源分配方式;
由所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源。
该程序被处理器执行时能实现上述方法实施例中的所有实现方式,为避免重复,此处不再赘述。
如图9所示,本公开实施例还提供了一种通信设备,所述通信设备为基站,所述基站包括中心节点CU和与所述CU连接的分布式节点DU,包括:
确定模块901,用于通过所述DU确定直接通信SL资源分配方式;
分配模块902,用于通过所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源。
本公开实施例的通信设备,所述确定模块用于通过所述DU根据终端的请求消息以及本地策略,确定SL资源分配方式。
本公开实施例的通信设备,所述DU确定的SL资源分配方式为终端自主选择的资源分配方式;
所述分配模块用于通过所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池。
本公开实施例的通信设备,还包括:
第一获取模块,用于所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池之前,由所述DU通过CU发送的F1应用协议消息获取所述直接通信终端消息中的部分或全部内容。
本公开实施例的通信设备,所述直接通信终端消息中的部分内容包括:频率、业务ID和终端V2X上下文信息中的至少一项。
本公开实施例的通信设备,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
所述分配模块包括:
第一发送子模块,用于所述DU接收到终端调度请求SR后,根据保存的 终端V2X上下文信息,分配上行调度许可资源并发送给终端;
分配子模块,用于所述DU接收到终端发送的缓存状态报告BSR后,根据保存的终端V2X上下文信息,为终端分配SL资源。
本公开实施例的通信设备,还包括:
第二获取模块,用于由所述DU获取CU发送的终端V2X上下文信息。
本公开实施例的通信设备,所述终端V2X上下文信息为CU在终端初始接入网络时,通过F1应用协议终端上下文管理过程发送的;
或者,所述终端V2X上下文信息为CU在终端发送直接通信终端消息之后通过F1应用协议相关消息发送的。
本公开实施例的通信设备,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
所述分配模块包括:
获取子模块,用于通过所述DU获取CU发送的与终端V2X上下文信息相关的半持续调度SPS辅助信息;
生成子模块,用于通过所述DU根据保存的终端V2X上下文信息以及SPS辅助信息,生成SPS配置信息并发送给CU;
通知子模块,用于在所述CU将所述SPS配置信息通知给终端后,通过所述DU告知终端SPS资源配置信息。
本公开实施例的通信设备,所述终端V2X上下文信息包括以下至少一项:
V2X授权authorization信息;直接通信接口的UE汇聚最大速率;直接通信接口的传输配置表和目标L2标识的映射关系;业务流QoS参数;Uu接口SR资源之间的映射关系。
本公开实施例的通信设备,由DU确定直接通信SL资源分配方式;CU和/或所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源,从而实现在CU-DU分离架构下设计合理的SL资源分配机制的目的。
在本公开的各种实施例中,应理解,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本公开实施例的实施过程构成任何限定。
在本公开所提供的实施例中,应该理解到,所揭露的装置和方法,可以 通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本公开各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本公开的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
此外,需要指出的是,在本公开的装置和方法中,显然,各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且,执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行,但是并不需要一定按照时间顺序执行,某些步骤可以并行或彼此独立地执行。对本领域的普通技术人员而言,能够理解本公开的方法和装置的全部或者任何步骤或者部件,可以在任何计算装置(包括处理器、存储介质等)或者计算装置的网络中,以硬件、固件、软件或者它们的组合加以实现,这是本领域普通技术人员在阅读了本公开的说明的情况下运用他们的基本编 程技能就能实现的。
因此,本公开的目的还可以通过在任何计算装置上运行一个程序或者一组程序来实现。所述计算装置可以是公知的通用装置。因此,本公开的目的也可以仅仅通过提供包含实现所述方法或者装置的程序代码的程序产品来实现。也就是说,这样的程序产品也构成本公开,并且存储有这样的程序产品的存储介质也构成本公开。显然,所述存储介质可以是任何公知的存储介质或者将来所开发出来的任何存储介质。还需要指出的是,在本公开的装置和方法中,显然,各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且,执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行,但是并不需要一定按照时间顺序执行。某些步骤可以并行或彼此独立地执行。
可以理解的是,本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现,处理单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits,ASIC)、数字信号处理器(Digital Signal Processing,DSP)、数字信号处理设备(DSP Device,DSPD)、可编程逻辑设备(Programmable Logic Device,PLD)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现,可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
以上所述是本公开的可选的实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开所述原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。

Claims (26)

  1. 一种资源分配方法,应用于基站,所述基站包括中心节点CU和与所述CU连接的分布式节点DU,其中,所述方法包括:
    所述DU确定直接通信SL资源分配方式;
    所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源。
  2. 根据权利要求1所述的资源分配方法,其中,所述DU确定直接通信SL资源分配方式,包括:
    所述DU根据终端的请求消息以及本地策略,确定SL资源分配方式。
  3. 根据权利要求1所述的资源分配方法,其中,所述DU确定的SL资源分配方式为终端自主选择的资源分配方式;
    所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源,包括:
    所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池。
  4. 根据权利要求3所述的资源分配方法,其中,所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池之前,还包括:
    所述DU通过CU发送的F1应用协议消息获取所述直接通信终端消息中的部分或全部内容。
  5. 根据权利要求4所述的资源分配方法,其中,所述直接通信终端消息中的部分内容包括:频率、业务ID和终端V2X上下文信息中的至少一项。
  6. 根据权利要求1所述的资源分配方法,其中,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
    所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源,包括:
    所述DU接收到终端调度请求SR后,根据保存的终端V2X上下文信息,分配上行调度许可资源并发送给终端;
    所述DU接收到终端发送的缓存状态报告BSR后,根据保存的终端V2X 上下文信息,为终端分配SL资源。
  7. 根据权利要求6所述的资源分配方法,其中,所述DU接收到终端调度请求SR后,根据保存的终端V2X上下文信息,分配上行调度许可资源并发送给终端之前,还包括:
    所述DU获取CU发送的终端V2X上下文信息。
  8. 根据权利要求7所述的资源分配方法,其中,所述终端V2X上下文信息为CU在终端初始接入网络时,通过F1应用协议终端上下文管理过程发送的;
    或者,所述终端V2X上下文信息为CU在终端发送直接通信终端消息之后通过F1应用协议相关消息发送的。
  9. 根据权利要求1所述的资源分配方法,其中,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
    所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源,包括:
    所述DU获取CU发送的与终端V2X上下文信息相关的半持续调度SPS辅助信息;
    所述DU根据保存的终端V2X上下文信息以及SPS辅助信息,生成SPS配置信息并发送给CU;
    在所述CU将所述SPS配置信息通知给终端后,所述DU告知终端SPS资源配置信息。
  10. 根据权利要求3和5-9中任一项所述的资源分配方法,其中,所述终端V2X上下文信息包括以下至少一项:
    V2X授权authorization信息;直接通信接口的UE汇聚最大速率;直接通信接口的传输配置表和目标L2标识的映射关系;业务流QoS参数;Uu接口SR资源之间的映射关系。
  11. 一种通信设备,所述通信设备为基站,所述基站包括中心节点CU和与所述CU连接的分布式节点DU,还包括:收发机、存储器、处理器及存储在存储器上并可在处理器上运行的程序,其中,所述处理器执行所述程序时实现以下步骤:
    由所述DU确定直接通信SL资源分配方式;
    由所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源。
  12. 根据权利要求11所述的通信设备,其中,所述处理器执行所述程序时还实现以下步骤:
    由所述DU根据终端的请求消息以及本地策略,确定SL资源分配方式。
  13. 根据权利要求11所述的通信设备,其中,所述DU确定的SL资源分配方式为终端自主选择的资源分配方式;
    所述处理器执行所述程序时还实现以下步骤:
    由所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池。
  14. 根据权利要求13所述的通信设备,其中,所述处理器执行所述程序时还实现以下步骤:
    由所述DU通过CU发送的F1应用协议消息获取所述直接通信终端消息中的部分或全部内容。
  15. 根据权利要求14所述的通信设备,其中,所述直接通信终端消息中的部分内容包括:频率、业务ID和终端V2X上下文信息中的至少一项。
  16. 根据权利要求11所述的通信设备,其中,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
    所述处理器执行所述程序时还实现以下步骤:
    由所述DU接收到终端调度请求SR后,根据保存的终端V2X上下文信息,分配上行调度许可资源并发送给终端;
    由所述DU接收到终端发送的缓存状态报告BSR后,根据保存的终端V2X上下文信息,为终端分配SL资源。
  17. 根据权利要求16所述的通信设备,其中,所述处理器执行所述程序时还实现以下步骤:
    由所述DU获取CU发送的终端V2X上下文信息。
  18. 根据权利要求17所述的通信设备,其中,所述终端V2X上下文信息为CU在终端初始接入网络时,通过F1应用协议终端上下文管理过程发送 的;
    或者,所述终端V2X上下文信息为CU在终端发送直接通信终端消息之后通过F1应用协议相关消息发送的。
  19. 根据权利要求11所述的通信设备,其中,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
    所述处理器执行所述程序时还实现以下步骤:
    由所述DU获取CU发送的与终端V2X上下文信息相关的半持续调度SPS辅助信息;
    由所述DU根据保存的终端V2X上下文信息以及SPS辅助信息,生成SPS配置信息并发送给CU;
    在所述CU将所述SPS配置信息通知给终端后,由所述DU告知终端SPS资源配置信息。
  20. 根据权利要求13和15-19中任一项所述的通信设备,其中,所述终端V2X上下文信息包括以下至少一项:
    V2X授权authorization信息;直接通信接口的UE汇聚最大速率;直接通信接口的传输配置表和目标L2标识的映射关系;业务流QoS参数;Uu接口SR资源之间的映射关系。
  21. 一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,其中,该计算机程序被处理器执行时实现如权利要求1至10中任一项所述资源分配方法的步骤。
  22. 一种通信设备,所述通信设备为基站,所述基站包括中心节点CU和与所述CU连接的分布式节点DU,其中,所述通信设备包括:
    确定模块,用于通过所述DU确定直接通信SL资源分配方式;
    分配模块,用于通过所述DU根据确定的资源分配方式和终端上下文信息,为终端分配SL资源。
  23. 根据权利要求22所述的通信设备,其中,所述DU确定的SL资源分配方式为终端自主选择的资源分配方式;
    所述分配模块用于通过所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池。
  24. 根据权利要求23所述的通信设备,还包括:
    第一获取模块,用于所述DU根据终端V2X上下文信息和直接通信终端消息,为终端分配SL资源池之前,由所述DU通过CU发送的F1应用协议消息获取所述直接通信终端消息中的部分或全部内容。
  25. 根据权利要求22所述的通信设备,其中,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
    所述分配模块包括:
    第一发送子模块,用于所述DU接收到终端调度请求SR后,根据保存的终端V2X上下文信息,分配上行调度许可资源并发送给终端;
    分配子模块,用于所述DU接收到终端发送的缓存状态报告BSR后,根据保存的终端V2X上下文信息,为终端分配SL资源。
  26. 根据权利要求22所述的通信设备,其中,所述DU确定的SL资源分配方式为网络调度的资源分配方式;
    所述分配模块包括:
    获取子模块,用于通过所述DU获取CU发送的与终端V2X上下文信息相关的半持续调度SPS辅助信息;
    生成子模块,用于通过所述DU根据保存的终端V2X上下文信息以及SPS辅助信息,生成SPS配置信息并发送给CU;
    通知子模块,用于在所述CU将所述SPS配置信息通知给终端后,通过所述DU告知终端SPS资源配置信息。
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