WO2022001616A1 - 资源管理方法及网络设备 - Google Patents

资源管理方法及网络设备 Download PDF

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Publication number
WO2022001616A1
WO2022001616A1 PCT/CN2021/099433 CN2021099433W WO2022001616A1 WO 2022001616 A1 WO2022001616 A1 WO 2022001616A1 CN 2021099433 W CN2021099433 W CN 2021099433W WO 2022001616 A1 WO2022001616 A1 WO 2022001616A1
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Prior art keywords
resource information
data bearer
bearer resource
information
data
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English (en)
French (fr)
Inventor
孙珊珊
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ZTE Corp
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ZTE Corp
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Priority to EP21832432.5A priority Critical patent/EP4175359A4/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H04W36/087—Reselecting an access point between radio units of access points

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular, to a resource management method and a network device.
  • a 5G base station In a 5G NR network, a 5G base station (gNB) consists of a centralized unit (Centralized Unit, CU) and a distributed unit (Distributed Unit, DU).
  • the process of communication between a terminal device (User Equipment, UE) and the gNB may include: CU is: The UE allocates available data bearer (Data Resource Bearer, DRB) resources, and sends the DRB resource allocation result to the DU; the DU allocates corresponding radio access resources for the DRB resources, such as: Radio Link Control (Radio Link Control, RLC) resource, and returns the radio access resource allocation result to the CU; the CU sends the radio access resource allocation result to the UE; the UE uses the radio access resource to communicate with the CU through the DU.
  • DRB Data Resource Bearer
  • RLC Radio Link Control
  • the UE In the process of cross-base station handover, the UE needs to send the DRB resources on the source side to the target CU, and the target CU accepts the PDU session resources, so that the UE can continue to use the radio access resources on the source side to communicate with the target CU through the target DU. .
  • the inventor found that: in the process of accepting PDU session resources, the CU may fail to accept some DRB resources. Communication will cause the problem of UE service interruption.
  • the purpose of the embodiments of the present application is to provide a resource management method and network device, which can reduce the service interruption rate of the terminal device during the inter-base station handover process.
  • an embodiment of the present application provides a resource management method, including: receiving a handover request, wherein the handover request carries first data bearer resource information used by a terminal device on the source side in a cross-base station handover process ; Carry out resource admission according to the first data bearer resource information, obtain the second data bearer resource information for which the resource admission is successful, and the third data bearer resource information for which the resource admission fails; Combine the second data bearer resource information with the described Send the third data bearer resource information to the distribution unit; receive the radio access bearer resource configuration information returned by the distribution unit according to the second data bearer resource information and the third data bearer resource information; The resource configuration information is sent to the terminal device.
  • the embodiment of the present application further provides a resource management method, including: receiving second data bearer resource information and third data bearer resource information sent by a centralized unit, wherein the second data bearer resource information is based on cross-base station handover During the process, when the terminal equipment performs resource admission using the first data bearing resource information used by the source side, the resource admission is successful bearer resource information, and the third data bearer resource information is based on the information used by the terminal equipment on the source side in the cross-base station handover process.
  • the bearer resource information that fails to be accepted by the resource is bearer; the radio access bearer resource corresponding to the third data bearer resource information is released; and the radio access bearer resource configuration information is sent to the centralized unit, The radio access bearer configuration information is used to instruct to release the radio access bearer resource corresponding to the third data bearer resource information.
  • Embodiments of the present application also provide a network device, including:
  • the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the resource management method described above.
  • Embodiments of the present application further provide a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the above two resource management methods are respectively implemented.
  • FIG. 1 is a flowchart of a resource management method provided by a first embodiment of the present application
  • FIG. 2 is a flowchart 1 of step 103 in the resource management method provided by the first embodiment of the present application shown in FIG. 1;
  • FIG. 3 is a second flowchart of step 103 in the resource management method provided by the first embodiment of the present application shown in FIG. 1;
  • FIG. 4 is a flowchart of a resource management method provided by a second embodiment of the present application.
  • FIG. 5 is a flowchart 1 of step 401 in the resource management method provided by the second embodiment of the present application shown in FIG. 4;
  • FIG. 6 is a second flowchart of step 401 in the resource management method provided by the second embodiment of the present application shown in FIG. 4;
  • FIG. 7 is a flowchart of a resource management method provided by a third embodiment of the present application.
  • FIG. 8 is a sequence diagram of a resource management method provided by a fourth embodiment of the present application.
  • FIG. 9 is a sequence diagram of a resource management method provided by a fifth embodiment of the present application.
  • FIG. 10 is a sequence diagram of a resource management method provided by the sixth embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a network device provided by a sixth embodiment of the present application.
  • the first embodiment of the present application relates to a resource management method, the process of which is shown in FIG. 1 , including:
  • Step 101 Receive a handover request, where the handover request carries first data bearer resource information used by the terminal device on the source side during the cross-base station handover process.
  • Step 102 Perform resource admission according to the first data bearer resource information, and obtain second data bearer resource information for which the resource admission is successful, and third data bearer resource information for which the resource admission fails.
  • step 102 may include the following three situations:
  • Situation 1 Acquire the data bearing resource information that is successfully admitted from the first data bearing resource information as the second data bearing resource information, and use the data bearing resource information of the first data bearing resource information except the second data bearing information as the third data bearing resource information.
  • Data carries information.
  • Case 2 Allocate new data bearer resources to the terminal device, use the new data bearer resource information as the second data bearer resource information, and use the first bearer resource information as the third data bearer resource information.
  • Scenario 3 Acquire the successfully accepted data bearing resource information from the first data bearing resource information as the first sub data bearing resource information, allocate new data bearing resources to the terminal device, and use the new data bearing resource information as the second sub data Bearing resource information, taking the first sub-data bearing resource information and the second sub-data bearing information as the second data bearing resource information, and taking the data bearing resource information except the first sub-data bearing information in the first data bearing resource information as the first data bearing resource information.
  • Step 103 Send the second data bearing resource information and the third data bearing resource information to the distribution unit.
  • step 103 may send the second data bearer resource information and the third data bearer resource information to the distribution unit through various methods.
  • step 103 may include:
  • Step 201 adding the second data bearer resource information to the DRB to Be Setup List field in the terminal equipment up and down setup request (UE CONTEXT SETUP REQUEST).
  • Step 202 adding the first data bearer resource information to the Handover Preparation Information field in the UE CONTEXT SETUP REQUEST.
  • Step 203 Send UE CONTEXT SETUP REQUEST to the distribution unit.
  • step 103 may include:
  • Step 301 adding the second data bearer resource information to the DRB to Be Setup List field in the UE CONTEXT SETUP REQUEST;
  • Step 302 add the DRB to Be Released List field in the UE CONTEXT SETUP REQUEST, and add the third data bearer resource information to the DRB to Be Released List field.
  • Step 303 Send UE CONTEXT SETUP REQUEST to the distribution unit.
  • Step 104 Receive the radio access bearer resource configuration information returned by the distribution unit according to the second data bearer resource information and the third data bearer resource information.
  • Step 105 Send the radio access bearer resource configuration information to the terminal device.
  • step 105 may send a handover command reconfiguration (RRCReconfiguration) indication to the terminal device, and add radio access bearer resource configuration information into the RadioBearerConfig field.
  • RRCReconfiguration handover command reconfiguration
  • the second data bearer resource information for which the resource admission is successful and the third data bearer resource information for which the resource admission fails can be sent to the distribution unit, so that the distribution unit can, according to the second data bearer resource information and the third data bearer resource information , allocate and manage the corresponding radio access bearer resources, after receiving the radio access bearer resource configuration information, the radio access bearer resource information can be sent to the terminal device, so that the radio access bearer resources of the terminal device and the network side are kept Consistent, thereby reducing the service interruption rate of the terminal equipment during the cross-base station handover process.
  • the second embodiment of the present application relates to a resource management method, the process of which is shown in FIG. 4 , including:
  • Step 401 Receive second data bearer resource information and third data bearer resource information sent by the centralized unit, where the second data bearer resource information is based on the first data bearer resource information used by the terminal device on the source side during the cross-base station handover process
  • the resource information of the successful resource admission bears the resource information
  • the third data bearer resource information is the bearer resource that fails to receive the resource when the resource admission is performed according to the first data bearer resource information used by the terminal device on the source side during the cross-base station handover process. information.
  • step 401 may receive the second data bearer resource information and the third data bearer resource information sent by the centralized unit through various methods.
  • step 401 may include:
  • Step 501 receive the UE CONTEXT SETUP REQUEST sent by the centralized unit;
  • Step 502 Obtain second data bearer resource information from the DRB to Be Setup List field of the UE CONTEXT SETUP REQUEST.
  • Step 503 Obtain the first data bearer resource information from the Handover Preparation Information field of the UE CONTEXT SETUP REQUEST.
  • Step 504 Acquire third data bearing resource information according to the first data bearing resource information and the second data bearing resource information.
  • step 401 may include:
  • Step 601 Receive the UE CONTEXT SETUP REQUEST sent by the centralized unit.
  • Step 602 Obtain second data bearer resource information from the DRB to Be Setup List field of the UE CONTEXT SETUP REQUEST.
  • Step 603 Obtain the third data bearer resource information from the DRB to Be Released List field of the UE CONTEXT SETUP REQUEST.
  • Step 402 Release the radio access bearer resource corresponding to the third data bearer resource information.
  • the radio access bearer resources may specifically be RLC resources.
  • Step 403 Send the radio access bearer resource configuration information to the centralized unit, where the radio access bearer configuration information is used to instruct to release the radio access bearer resource corresponding to the third data bearer resource information.
  • step 403 may add the radio access bearer resource information corresponding to the third data bearer resource information to the CellGroupConfig field of the terminal equipment setup response (UE CONTEXT SETUP RESPONSE), and send UE CONTEXT SETUP RESPONSE to the centralized unit .
  • UE CONTEXT SETUP RESPONSE the Radio access bearer resource information corresponding to the third data bearer resource information
  • the second data bearer resource information for which the resource admission is successful and the third data bearer resource information for which the resource admission fails can be received from the centralized unit, the radio access bearer resource corresponding to the third data bearer resource information is released, and Notifying the centralized unit of the release result (radio access bearer resource configuration information), so that the centralized unit can send the radio access bearer resource information to the terminal device, so that the radio access bearer resources of the terminal device are consistent with the network side, and then Reduce the service interruption rate of terminal equipment in the process of cross-base station handover.
  • the third embodiment of the present application relates to a resource management method, the process of which is shown in FIG. 7 , including:
  • Step 701 Receive second data bearer resource information and third data bearer resource information sent by the centralized unit, where the second data bearer resource information is based on the first data bearer resource information used by the terminal device on the source side during the cross-base station handover process
  • the resource information of the successful resource admission bears the resource information
  • the third data bearer resource information is the bearer resource that fails to receive the resource when the resource admission is performed according to the first data bearer resource information used by the terminal device on the source side during the cross-base station handover process. information.
  • step 701 for the specific implementation method of step 701, reference may be made to the description of step 401, and details are not repeated here.
  • Step 702 Allocate new radio access bearer resources according to the second data bearer resource information.
  • Step 703 Release the radio access bearer resource corresponding to the third data bearer resource information.
  • Step 704 Send radio access bearer resource configuration information to the centralized unit, where the radio access bearer configuration information is used to instruct to add new radio access bearer resources and release radio access bearer resources corresponding to the third data bearer resource information .
  • step 704 may add both the new radio access bearer resource information and the radio access bearer resource information corresponding to the third data bearer resource information to the CellGroupConfig field of the terminal equipment setup response (UE CONTEXT SETUP RESPONSE). , the UE CONTEXT SETUP RESPONSE is sent to the centralized unit.
  • UE CONTEXT SETUP RESPONSE is sent to the centralized unit.
  • this embodiment can also allocate new wireless access bearer resources for the second data bearer resource information, and send the new wireless contact bearer resource information to the centralized unit, so as to facilitate
  • the centralized unit can send the new wireless contact bearer resource information to the terminal equipment, so that the wireless access bearer resources of the terminal equipment and the network side are consistent, thereby reducing the service interruption rate of the terminal equipment during the cross-base station handover process.
  • the technical solutions provided by the first embodiment to the third embodiment above are applied in the case where the UE switches from the source to the target side across the base station, and the target gNB is composed of the target CU and the target DU, wherein, the technology provided by the first embodiment
  • the solution is specifically applied to the target CU, and the technical solutions provided in the second and third embodiments are specifically applied to the target DU.
  • specific descriptions are given below through different application scenarios.
  • the first data bearer resources used by the UE on the source side include: DRB1 and DRB2.
  • the CU on the target side can only accept DRB1 successfully when performing resource admission, and fails to accept DRB2, that is, the second data bearer resource is DRB1, and the second data bearer resource is DRB1.
  • the third data bearing resource is DRB2.
  • the resource management method provided by the fourth embodiment of the present application includes:
  • Step 801 the source gNB or the authentication management function (Authentication Management Function, AMF) sends a HandoverRequest to the target CU, and carries DRB1 and DRB2 in the Handover Preparation Information of the HandoverRequest.
  • AMF Authentication Management Function
  • Step 802 the target CU determines that the DRB1 resource admission is successful, and the DRB2 resource admission fails.
  • Step 803 the target CU sends the UE CONTEXT SETUP REQUEST to the target DU, adds DRB1 to the DRB to Be Setup List field, and adds the Handover Preparation Information of the HandoverRequest to the Handover Preparation Information in the CU to DU RRC Information.
  • Step 804 the target DU obtains the DRB1 of the successful resource admission from the DRB to Be Setup List of the UE CONTEXT SETUP REQUEST, obtains the DRB1 and DRB2 of the source side from the Handover Preparation Information, determines the DRB2 that fails to receive the resource, and finds the RLC2 corresponding to the DRB2.
  • Step 805 the target DU sends the UE CONTEXT SETUP RESPONSE to the target CU, and adds RLC2 to the CellGroupConfig.
  • Step 806 the target CU sends the RRCReconfiguration to the UE, wherein the RRCReconfiguration carries the CellGroupConfig.
  • the resource management method provided by the fifth embodiment of the present application includes:
  • Step 901 the source gNB or AMF sends a HandoverRequest to the target CU, and carries DRB1 and DRB2 in the Handover Preparation Information of the HandoverRequest.
  • Step 902 the target CU determines that the DRB1 resource admission is successful, and the DRB2 resource admission fails.
  • Step 903 the target CU sends the UE CONTEXT SETUP REQUEST to the target DU, adds DRB1 to the DRB to Be Setup List field, and adds DRB2 to the DRB to Be Released List field.
  • Step 904 the target DU obtains the DRB1 that has successfully received the resources from the DRB to Be Setup List of the UE CONTEXT SETUP REQUEST, and obtains the DRB2 that has failed to accept the resources from the DRB to Be Released List field, and finds the RLC2 corresponding to the DRB2.
  • Step 905 the target DU sends the UE CONTEXT SETUP RESPONSE to the target CU, and adds RLC2 to the CellGroupConfig.
  • Step 906 the target CU sends an RRCReconfiguration to the UE, wherein the RRCReconfiguration carries the CellGroupConfig.
  • the first data bearer resources used by the UE at the source side include: DRB1 and DRB2, and the CU on the target side can only accept the new DRB3 successfully when performing resource admission, and the admission of DRB1 and DRB2 fails, that is: the second data bearer resource is DRB3, and the third data bearing resources are DRB1 and DRB2.
  • the resource management method provided by the sixth embodiment of the present application includes:
  • Step 1001 the source gNB or AMF sends a HandoverRequest to the target CU, and carries DRB1 and DRB2 in the Handover Preparation Information of the HandoverRequest.
  • Step 1002 the target CU determines that the newly added DRB3 resources are successfully admitted, and the DRB1 and DRB2 resources are failed to be admitted.
  • Step 1003 the target CU sends the UE CONTEXT SETUP REQUEST to the target DU, adds DRB3 to the DRB to Be Setup List field, and adds DRB1 and DRB2 to the DRB to Be Released List field.
  • Step 1004 the target DU obtains the DRB3 that has successfully received the resource from the DRB to Be Setup List of the UE CONTEXT SETUP REQUEST, and obtains the DRB1 and DRB2 that have failed to accept the resource from the DRB to Be Released List field, and finds the RLC1 corresponding to DRB1 and the DRB2 corresponds to RLC2, and allocates RLC3 to DRB3.
  • Step 1005 the target DU sends UE CONTEXT SETUP RESPONSE to the target CU, and adds RLC1, RLC2 and RLC3 to the CellGroupConfig.
  • Step 1006 the target CU sends the RRCReconfiguration to the UE, wherein the RRCReconfiguration carries the CellGroupConfig.
  • the target CU sends the second data bearer resource information for which the resource admission is successful and the third data bearer resource information for which the resource admission fails to the target DU, so that the target DU can, according to the second data bearer resource information and the third data bearer resource information, allocate and manage the corresponding RLC, the target CU can send the radio access bearer resource information to the UE after receiving the radio access bearer resource configuration information sent by the target DU, so that the UE's radio access bearer resources and the target CU , the target DU side is consistent, thereby reducing the service interruption rate of the terminal equipment during the cross-base station handover process.
  • existing processes and messages are used in the communication process, and no new processes or messages are added, which saves communication costs.
  • the seventh embodiment of the present application relates to a network device, as shown in FIG. 11 , including:
  • At least one processor 1101 and,
  • the memory 1102 stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor 1101, so that the at least one processor 1101 can execute the resources provided by the above embodiments of the present application management method.
  • the memory and the processor are connected by a bus, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more processors and various circuits of the memory.
  • the bus may also connect together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface between the bus and the transceiver.
  • a transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other devices over a transmission medium.
  • the data processed by the processor is transmitted over the wireless medium through the antenna, which in some embodiments also receives the data and transmits the data to the processor.
  • the processor manages the bus and general processing, and can also provide various functions, including timing, peripheral interface, voltage regulation, power management, and other control functions. Instead, memory may be used to store data used by the processor in performing operations.
  • the eighth embodiment of the present application relates to a computer-readable storage medium storing a computer program.
  • the above method embodiments are implemented when the computer program is executed by the processor.
  • the computer-readable storage medium includes transient or non-transitory, removable or Non-removable media.
  • the aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

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Abstract

本申请实施例涉及通信领域，公开了一种资源管理方法及网络设备。资源管理方法，包括：接收切换请求，其中，所述切换请求携带跨基站切换过程中终端设备在源侧使用的第一数据承载资源信息；根据所述第一数据承载资源信息进行资源接纳，获取资源接纳成功的第二数据承载资源信息，以及资源接纳失败的第三数据承载资源信息；将所述第二数据承载资源信息和所述第三数据承载资源信息发送给分布单元；接收所述分布单元根据所述第二数据承载资源信息和所述第三数据承载资源信息返回的无线接入承载资源配置信息；将所述无线接入资源配置信息发送给所述终端设备。

Description

资源管理方法及网络设备
交叉引用
本申请引用于2020年06月28日递交的名称为“资源管理方法及网络设备”的第202010599542.0号中国专利申请，其通过引用被全部并入本申请。
技术领域
本申请实施例涉及通信领域，特别涉及一种资源管理方法及网络设备。
背景技术
在5G NR网络中，5G基站(gNB)由集中单元(Centralized Unit，CU)和分布单元(Distributed Unit，DU)构成，终端设备(User Equipment，UE)与gNB通信的过程具体可以包括：CU为UE分配可用的数据承载(Data Resource Bearer，DRB)资源，并将DRB资源分配结果发送给DU；DU为DRB资源分配对应的无线接入资源，例如：无线链路层控制协议(Radio Link Control，RLC)资源，并将无线接入资源分配结果返回给CU；CU将无线接入资源的分配结果发送给UE；UE采用无线接入资源通过DU与CU进行通信。
UE进行跨基站切换的过程中，需要将源侧的DRB资源发送给目标CU，由目标CU进行PDU session资源接纳，使得UE可以继续使用源侧的无线接入资源通过目标DU与目标CU进行通信。
然而，在实现本申请实施例的过程中，发明人发现：CU在进行PDU session资源接纳的过程中，可能有部分DRB资源接纳失败，如果UE采用资源接纳失败的DRB对应的无线接入资源进行通信，会造成UE业务中断的问题。
发明内容
本申请实施例的目的在于提供一种资源管理方法及网络设备，能够降低跨基站切换过程中终端设备的业务中断率。
为解决上述技术问题，本申请的实施例提供了一种资源管理方法，包括：接收切换请求，其中，所述切换请求携带跨基站切换过程中终端设备在源侧使用的第一数据承载资源信息；根据所述第一数据承载资源信息进行资源接纳，获取资源接纳成功的第二数据承载资源信息，以及资源接纳失败的第三数据承载资源信息；将所述第二数据承载资源信息和所述第三数据承载资源信息发送给分布单元；接收所述分布单元根据所述第二数据承载资源信息和所述第三数据承载资源信息返回的无线接入承载资源配置信息；将所述无线接入资源配置信息发送给所述终端设备。
本申请的实施例还提供了一种资源管理方法，包括：接收集中单元发送的第二数据承载资源信息和第三数据承载资源信息，其中，所述第二数据承载资源信息为根据跨基站切换过程中终端设备在源侧使用的第一数据承载资源信息进行资源接纳时，资源接纳成功的承载资 源信息，所述第三数据承载资源信息为根据跨基站切换过程中终端设备在源侧使用的第一数据承载资源信息进行资源接纳时，资源接纳失败的承载资源信息；释放所述第三数据承载资源信息对应的无线接入承载资源；向所述集中单元发送无线接入承载资源配置信息，其中，所述无线接入承载配置信息用于指示释放所述第三数据承载资源信息对应的无线接入承载资源。
本申请的实施例还提供了一种网络设备，包括：
至少一个处理器；以及，
与所述至少一个处理器通信连接的存储器；其中，
所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行以上所述的资源管理方法。
本申请的实施例还提供了一种计算机可读存储介质，存储有计算机程序，计算机程序被处理器执行时分别实现上述的两种资源管理方法。
附图说明
一个或多个实施例通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施例的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。
图1是本申请的第一实施例提供的资源管理方法的流程图；
图2是图1所示的本申请的第一实施例提供的资源管理方法中步骤103的流程图一；
图3是图1所示的本申请的第一实施例提供的资源管理方法中步骤103的流程图二；
图4是本申请的第二实施例提供的资源管理方法的流程图；
图5是图4所示的本申请的第二实施例提供的资源管理方法中步骤401的流程图一；
图6是图4所示的本申请的第二实施例提供的资源管理方法中步骤401的流程图二；
图7是本申请的第三实施例提供的资源管理方法的流程图；
图8是本申请的第四实施例提供的资源管理方法的时序图；
图9是本申请的第五实施例提供的资源管理方法的时序图；
图10是本申请的第六实施例提供的资源管理方法的时序图；
图11是本申请的第六实施例提供的网络设备的结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请的各实施例进行详细的阐述。然而，本领域的普通技术人员可以理解，在本申请各实施例中，为了使读者更好地理解本申请而提出了许多技术细节。但是，即使没有这些技术细节和基于以下各实施例的种种变化和修改，也可以实现本申请所要求保护的技术方案。以下各个实施例的划分是为了描述方便，不应对本申请的具体实现方式构成任何限定，各个实施例在不矛盾的前提下可以相互结合相互引用。
本申请的第一实施例涉及一种资源管理方法，其流程如图1所示，包括：
步骤101，接收切换请求，其中，切换请求携带跨基站切换过程中终端设备在源侧使用的第一数据承载资源信息。
步骤102，根据第一数据承载资源信息进行资源接纳，获取资源接纳成功的第二数据承载资源信息，以及资源接纳失败的第三数据承载资源信息。
在本实施例中，步骤102可以包括如下三种情况：
情况一：从第一数据承载资源信息中获取接纳成功的数据承载资源信息作为第二数据承载资源信息，将第一数据承载资源信息中除去第二数据承载信息以外的数据承载资源信息作为第三数据承载信息。
情况二：为终端设备分配新的数据承载资源，将新的数据承载资源信息作为第二数据承载资源信息，将第一承载资源信息作为第三数据承载资源信息。
情况三：从第一数据承载资源信息中获取接纳成功的数据承载资源信息作为第一子数据承载资源信息，为终端设备分配新的数据承载资源，将新的数据承载资源信息作为第二子数据承载资源信息，将第一子数据承载资源信息和第二子数据承载信息作为第二数据承载资源信息，将第一数据承载资源信息中除去第一子数据承载信息以外的数据承载资源信息作为第三数据承载信息。
当然，以上三种情况仅为具体的举例说明，此处不对每种情况进行一一赘述。
步骤103，将第二数据承载资源信息和第三数据承载资源信息发送给分布单元。
在本实施例中，步骤103可以通过多种方法将第二数据承载资源信息和第三数据承载资源信息发送给分布单元。
例如，如图2所示，步骤103可以包括：
步骤201，将第二数据承载资源信息添加到终端设备上下建立请求(UE CONTEXT SETUP REQUEST)中DRB to Be Setup List字段。
步骤202，将第一数据承载资源信息添加到UE CONTEXT SETUP REQUEST中的Handover Preparation Information字段。
步骤203，向分布单元发送UE CONTEXT SETUP REQUEST。
又如，如图3所示，步骤103可以包括：
步骤301，将第二数据承载资源信息添加到UE CONTEXT SETUP REQUEST中的DRB to Be Setup List字段；
步骤302，在UE CONTEXT SETUP REQUEST中增加DRB to Be Released List字段，将第三数据承载资源信息添加到DRB to Be Released List字段。
步骤303，向分布单元发送UE CONTEXT SETUP REQUEST。
当然，以上两种方法仅为具体的举例说明，在实际的使用过程中还可以通过其他方法将第二数据承载资源信息和第三数据承载资源信息发送给分布单元，此处不做一一赘述。
步骤104，接收分布单元根据第二数据承载资源信息和第三数据承载资源信息返回的无线接入承载资源配置信息。
步骤105，将无线接入承载资源配置信息发送给终端设备。
在本实施例中，步骤105可以向终端设备发送切换命令重配(RRCReconfiguration)指示，将无线接入承载资源配置信息添加到RadioBearerConfig字段中。
本实施例中，能够向分布单元发送资源接纳成功的第二数据承载资源信息和资源接纳失败的第三数据承载资源信息，使得分布单元可以根据第二数据承载资源信息和第三数据承载资源信息，分配和管理对应的无线接入承载资源，在接收到无线接入承载资源配置信息后可以将无线接入承载资源信息发送给终端设备，从而使终端设备的无线接入承载资源和网络侧保持一致，进而降低跨基站切换过程中终端设备的业务中断率。
本申请的第二实施例涉及一种资源管理方法，其流程如图4所示，包括：
步骤401，接收集中单元发送的第二数据承载资源信息和第三数据承载资源信息，其中，第二数据承载资源信息为根据跨基站切换过程中终端设备在源侧使用的第一数据承载资源信息进行资源接纳时，资源接纳成功的承载资源信息，第三数据承载资源信息为根据跨基站切换过程中终端设备在源侧使用的第一数据承载资源信息进行资源接纳时，资源接纳失败的承载资源信息。
在本实施例中，步骤401可以通过多种方法接收集中单元发送的第二数据承载资源信息和第三数据承载资源信息。
例如：如图5所示，步骤401可以包括：
步骤501，接收集中单元发送的UE CONTEXT SETUP REQUEST；
步骤502，从UE CONTEXT SETUP REQUEST的DRB to Be Setup List字段，获取第二数据承载资源信息。
步骤503，从UE CONTEXT SETUP REQUEST的Handover Preparation Information字段，获取第一数据承载资源信息。
步骤504，根据第一数据承载资源信息和第二数据承载资源信息，获取第三数据承载资源信息。
又如：如图6所示，步骤401可以包括：
步骤601，接收集中单元发送的UE CONTEXT SETUP REQUEST。
步骤602，从UE CONTEXT SETUP REQUEST的DRB to Be Setup List字段，获取第二数据承载资源信息。
步骤603，从UE CONTEXT SETUP REQUEST的DRB to Be Released List字段，获取第三数据承载资源信息。
当然，以上两种方法仅为具体的举例说明，在实际的使用过程中还可以通过其他方法接收集中单元发送的第二数据承载资源信息和第三数据承载资源信息，此处不做一一赘述。
步骤402，释放第三数据承载资源信息对应的无线接入承载资源。
在本实施例中，无线接入承载资源具体可以为RLC资源。
步骤403，向集中单元发送无线接入承载资源配置信息，其中，无线接入承载配置信息用于指示释放第三数据承载资源信息对应的无线接入承载资源。
在本实施例中，步骤403可以将第三数据承载资源信息对应的无线接入承载资源信息添加到终端设备上下建立响应(UE CONTEXT SETUP RESPONSE)的CellGroupConfig字段中，向集中单元发送UE CONTEXT SETUP RESPONSE。
本实施例中，能够从集中单元接收资源接纳成功的第二数据承载资源信息和资源接纳失败的第三数据承载资源信息，将第三数据承载资源信息对应的无线接入承载资源释放掉，并将释放结果(无线接入承载资源配置信息)通知集中单元，以便于集中单元可以将无线接入承载资源信息发送给终端设备，从而使终端设备的无线接入承载资源和网络侧保持一致，进而降低跨基站切换过程中终端设备的业务中断率。
本申请的第三实施例涉及一种资源管理方法，其流程如图7所示，包括：
步骤701，接收集中单元发送的第二数据承载资源信息和第三数据承载资源信息，其中，第二数据承载资源信息为根据跨基站切换过程中终端设备在源侧使用的第一数据承载资源信息进行资源接纳时，资源接纳成功的承载资源信息，第三数据承载资源信息为根据跨基站切换过程中终端设备在源侧使用的第一数据承载资源信息进行资源接纳时，资源接纳失败的承载资源信息。
在本实施例中，步骤701的具体实现方法可以参见步骤401所述，此处不再赘述。
步骤702，根据第二数据承载资源信息，分配新的无线接入承载资源。
步骤703，释放第三数据承载资源信息对应的无线接入承载资源。
步骤704，向集中单元发送无线接入承载资源配置信息，其中，无线接入承载配置信息用于指示增加新的无线接入承载资源，以及释放第三数据承载资源信息对应的无线接入承载资源。
在本实施例中，步骤704可以将新的无线接入承载资源信息和第三数据承载资源信息对应的无线接入承载资源信息均添加到终端设备上下建立响应(UE CONTEXT SETUP RESPONSE)的CellGroupConfig字段中，向集中单元发送UE CONTEXT SETUP RESPONSE。
本实施例在达到第二实施例提供的技术效果基础上，还可以为第二数据承载资源信息分 配新的无线接入承载资源，并将新的无线接触承载资源信息发送给集中单元，以便于集中单元可以将新的无线接触承载资源信息发送给终端设备，从而使终端设备的无线接入承载资源和网络侧保持一致，进而降低跨基站切换过程中终端设备的业务中断率。
以上第一实施例到第三实施例提供的技术方案应用在UE从源则跨基站切换到目标侧，且目标gNB由目标CU和目标DU构成的情况下，其中，第一实施例提供的技术方案具体应用在目标CU上，第二和第三实施例提供的技术方案具体应用在目标DU上。为了使本领域技术人员能够更清楚地理解以上实施例提供的技术方案，下面通过不同的应用场景进行具体说明。
场景一：UE在源侧使用的第一数据承载资源包括：DRB1和DRB2，目标侧的CU在进行资源接纳时只能接纳成功DRB1，DRB2接纳失败，即：第二数据承载资源为DRB1，第三数据承载资源为DRB2。
如图8所示，本申请第四实施例提供的资源管理方法，包括：
步骤801，源gNB或认证管理功能(Authentication Management Function，AMF)向目标CU发送HandoverRequest，在HandoverRequest的Handover Preparation Information中携带DRB1和DRB2。
步骤802，目标CU确定DRB1资源接纳成功，DRB2资源接纳失败。
步骤803，目标CU向目标DU发送UE CONTEXT SETUP REQUEST，将DRB1添加到DRB to Be Setup List字段中，将HandoverRequest的Handover Preparation Information添加到CU to DU RRC Information中的Handover Preparation Information中。
步骤804，目标DU从UE CONTEXT SETUP REQUEST的DRB to Be Setup List获取资源接纳成功的DRB1，从Handover Preparation Information中获取源侧的DRB1和DRB2，确定资源接纳失败的DRB2，找到与DRB2对应的RLC2。
步骤805，目标DU向目标CU发送UE CONTEXT SETUP RESPONSE，将RLC2添加到CellGroupConfig中。
步骤806，目标CU向UE发送RRCReconfiguration，其中，RRCReconfiguration中携带CellGroupConfig。
如图9所示，本申请第五实施例提供的资源管理方法，包括：
步骤901，源gNB或AMF向目标CU发送HandoverRequest，在HandoverRequest的Handover Preparation Information中携带DRB1和DRB2。
步骤902，目标CU确定DRB1资源接纳成功，DRB2资源接纳失败。
步骤903，目标CU向目标DU发送UE CONTEXT SETUP REQUEST，将DRB1添加到DRB to Be Setup List字段中，将DRB2添加到DRB to Be Released List字段中。
步骤904，目标DU从UE CONTEXT SETUP REQUEST的DRB to Be Setup List获取资源接纳成功的DRB1，从DRB to Be Released List字段中获取资源接纳失败的DRB2，并找到与DRB2对应的RLC2。
步骤905，目标DU向目标CU发送UE CONTEXT SETUP RESPONSE，将RLC2添加到CellGroupConfig中。
步骤906，目标CU向UE发送RRCReconfiguration，其中，RRCReconfiguration中携带CellGroupConfig。
场景二：UE在源侧使用的第一数据承载资源包括：DRB1和DRB2，目标侧的CU在进行资源接纳时只能接纳成功新的DRB3，DRB1和DRB2接纳失败，即：第二数据承载资源为DRB3，第三数据承载资源为DRB1和DRB2。
如图10所示，本申请第六实施例提供的资源管理方法，包括：
步骤1001，源gNB或AMF向目标CU发送HandoverRequest，在HandoverRequest的Handover Preparation Information中携带DRB1和DRB2。
步骤1002，目标CU确定新增的DRB3资源接纳成功，DRB1和DRB2资源接纳失败。
步骤1003，目标CU向目标DU发送UE CONTEXT SETUP REQUEST，将DRB3添加到DRB to Be Setup List字段中，将DRB1和DRB2添加到DRB to Be Released List字段中。
步骤1004，目标DU从UE CONTEXT SETUP REQUEST的DRB to Be Setup List获取资源接纳成功的DRB3，从DRB to Be Released List字段中获取资源接纳失败的DRB1和DRB2，并找到与DRB1对应的RLC1，以及与DRB2对应的RLC2，并且为DRB3分配RLC3。
步骤1005，目标DU向目标CU发送UE CONTEXT SETUP RESPONSE，将RLC1、RLC2和RLC3添加到CellGroupConfig中。
步骤1006，目标CU向UE发送RRCReconfiguration，其中，RRCReconfiguration中携带CellGroupConfig。
本实施例中，目标CU向目标DU发送资源接纳成功的第二数据承载资源信息和资源接纳失败的第三数据承载资源信息，使得目标DU可以根据第二数据承载资源信息和第三数据承载资源信息，分配和管理对应的RLC，目标CU在接收到目标DU发送的无线接入承载资源配置信息后可以将无线接入承载资源信息发送给UE，从而使UE的无线接入承载资源和目标CU、目标DU侧保持一致，进而降低跨基站切换过程中终端设备的业务中断率。在一些实施例中，进行通信的过程均采用现有流程和消息，没有增加新的流程或者消息，节省了通信成本。
本申请第七实施例涉及一种网络设备，如图11所示，包括：
至少一个处理器1101；以及，
与所述至少一个处理器1101通信连接的存储器1102；其中，
所述存储器1102存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器1101执行，以使所述至少一个处理器1101能够执行本申请以上实施例提供的资源管理方法。
其中，存储器和处理器采用总线方式连接，总线可以包括任意数量的互联的总线和桥，总线将一个或多个处理器和存储器的各种电路连接在一起。总线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连接在一起，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。总线接口在总线和收发机之间提供接口。收发机可以是一个元件，也可以是多个元件，比如多个接收器和发送器，提供用于在传输介质上与各种其他装置通信的单元。经处理器处理的数据通过天线在无线介质上进行传输，在一些实施例中，天线还接收数据并将数据传送给处理器。
处理器负责管理总线和通常的处理，还可以提供各种功能，包括定时，外围接口，电压调节、电源管理以及其他控制功能。而存储器可以被用于存储处理器在执行操作时所使用的数据。
本申请第八实施例涉及一种计算机可读存储介质，存储有计算机程序。计算机程序被处理器执行时实现上述方法实施例。该计算机可读存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、计算机程序模块或其他数据)的任何方法或技术中实施的暂态性或非暂态性、可移除或不可移除的介质。
即，本领域技术人员可以理解，实现上述实施例方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序存储在一个存储介质中，包括若干指令用以使得一个设备(可以是单片机，芯片等)或处理器(processor)执行本申请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、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
本领域的普通技术人员可以理解，上述各实施例是实现本申请的实施例，而在实际应用中，可以在形式上和细节上对其作各种改变，而不偏离本申请的精神和范围。

Claims (11)

  1. 一种资源管理方法，包括：
    接收切换请求，其中，所述切换请求携带跨基站切换过程中终端设备在源侧使用的第一数据承载资源信息；
    根据所述第一数据承载资源信息进行资源接纳，获取资源接纳成功的第二数据承载资源信息，以及资源接纳失败的第三数据承载资源信息；
    将所述第二数据承载资源信息和所述第三数据承载资源信息发送给分布单元；
    接收所述分布单元根据所述第二数据承载资源信息和所述第三数据承载资源信息返回的无线接入承载资源配置信息；
    将所述无线接入承载资源配置信息发送给所述终端设备。
  2. 根据权利要求1所述的方法，其中，所述根据所述第一数据承载资源信息进行资源接纳，获取资源接纳成功的第二数据承载资源信息，以及资源接纳失败的第三数据承载资源信息包括：
    从所述第一数据承载资源信息中获取接纳成功的数据承载资源信息作为所述第二数据承载资源信息，将所述第一数据承载资源信息中除去所述第二数据承载信息以外的数据承载资源信息作为所述第三数据承载信息；或者，
    为所述终端设备分配新的数据承载资源，将所述新的数据承载资源信息作为所述第二数据承载资源信息，将所述第一承载资源信息作为所述第三数据承载资源信息；或者，
    从所述第一数据承载资源信息中获取接纳成功的数据承载资源信息作为第一子数据承载资源信息，为所述终端设备分配新的数据承载资源，将所述新的数据承载资源信息作为第二子数据承载资源信息，将所述第一子数据承载资源信息和所述第二子数据承载信息作为所述第二数据承载资源信息，将所述第一数据承载资源信息中除去所述第一子数据承载信息以外的数据承载资源信息作为所述第三数据承载信息。
  3. 根据权利要求1或2所述的方法，其中，如果所述第一数据承载资源信息包括所述第二数据承载资源信息和/或所述第三数据承载资源信息，所述将所述第二数据承载资源信息和所述第三数据承载资源信息发送给分布单元包括：
    将所述第二数据承载资源信息添加到终端设备上下建立请求中DRB to Be Setup List字段；
    将所述第一数据承载资源信息添加到所述终端设备上下建立请求中的Handover Preparation Information字段；
    向所述分布单元发送所述终端设备上下建立请求。
  4. 根据权利要求1至3中任一项所述的方法，其中，所述将所述第二数据承载资源信息和所述第三数据承载资源信息发送给分布单元包括：
    将所述第二数据承载资源信息添加到终端设备上下建立请求中的DRB to Be Setup List字段；
    在所述终端设备上下建立请求中增加DRB to Be Released List字段，将所述述第三数据承 载资源信息添加到所述DRB to Be Released List字段；
    向所述分布单元发送所述终端设备上下建立请求。
  5. 一种资源管理方法，包括：
    接收集中单元发送的第二数据承载资源信息和第三数据承载资源信息，其中，所述第二数据承载资源信息为根据跨基站切换过程中终端设备在源侧使用的第一数据承载资源信息进行资源接纳时，资源接纳成功的承载资源信息，所述第三数据承载资源信息为根据跨基站切换过程中终端设备在源侧使用的第一数据承载资源信息进行资源接纳时，资源接纳失败的承载资源信息；
    释放所述第三数据承载资源信息对应的无线接入承载资源；
    向所述集中单元发送无线接入承载资源配置信息，其中，所述无线接入承载配置信息用于指示释放所述第三数据承载资源信息对应的无线接入承载资源。
  6. 根据权利要求5所述的方法，其中，所述接收集中单元发送的第二数据承载资源信息和第三数据承载资源信息包括：
    接收集中单元发送的终端设备上下建立请求；
    从所述终端设备上下建立请求的DRB to Be Setup List字段，获取所述第二数据承载资源信息；
    从所述终端设备上下建立请求的Handover Preparation Information字段，获取所述第一数据承载资源信息；
    根据所述第一数据承载资源信息和所述第二数据承载资源信息，获取所述第三数据承载资源信息。
  7. 根据权利要求5所述的方法，其中，所述接收集中单元发送的第二数据承载资源信息和第三数据承载资源信息包括：
    接收集中单元发送的终端设备上下建立请求；
    从所述终端设备上下建立请求的DRB to Be Setup List字段，获取所述第二数据承载资源信息；
    从所述终端设备上下建立请求的DRB to Be Released List字段，获取所述第三数据承载资源信息。
  8. 根据权利要求5所述的方法，其中，所述接收集中单元发送的第二数据承载资源信息和第三数据承载资源信息之后，所述向所述集中单元发送无线接入承载资源配置信息之前，还包括：
    根据所述第二数据承载资源信息，分配新的无线接入承载资源；
    则所述无线接入承载配置信息还用于指示增加所述新的无线接入承载资源。
  9. 根据权利要求5或8所述的方法，其中，所述向所述集中单元发送无线接入承载资源配置信息包括：
    将所述第三数据承载资源信息对应的无线接入承载资源信息添加到终端设备上下建立响应的CellGroupConfig字段中，向所述集中单元发送所述终端设备上下建立响应；或者，
    将所述第三数据承载资源信息对应的无线接入承载资源信息，和所述第二数据承载资源信息对应的所述新的无线接入承载资源信息，添加到终端设备上下建立响应的CellGroupConfig字段中，向所述集中单元发送所述终端设备上下建立响应。
  10. 一种网络设备，包括：
    至少一个处理器；以及，
    与所述至少一个处理器通信连接的存储器；其中，
    所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行如权利要求1至4中任意一项所述的资源管理方法，或者权利要求5-9中任意一项所述的资源管理方法。
  11. 一种计算机可读存储介质，存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1至4中任一项所述的资源管理方法或实现权利要求5至9中任一项所述的资源管理方法。
PCT/CN2021/099433 2020-06-28 2021-06-10 资源管理方法及网络设备 Ceased WO2022001616A1 (zh)

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