WO2018103009A1 - Procédé de suppression de support radio de données, équipement d'utilisateur et entité de fonction de réseau d'accès - Google Patents

Procédé de suppression de support radio de données, équipement d'utilisateur et entité de fonction de réseau d'accès Download PDF

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Publication number
WO2018103009A1
WO2018103009A1 PCT/CN2016/108854 CN2016108854W WO2018103009A1 WO 2018103009 A1 WO2018103009 A1 WO 2018103009A1 CN 2016108854 W CN2016108854 W CN 2016108854W WO 2018103009 A1 WO2018103009 A1 WO 2018103009A1
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Prior art keywords
drb
target
identifier
anf
established
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PCT/CN2016/108854
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English (en)
Chinese (zh)
Inventor
吴义壮
熊春山
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华为技术有限公司
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Priority to PCT/CN2016/108854 priority Critical patent/WO2018103009A1/fr
Publication of WO2018103009A1 publication Critical patent/WO2018103009A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for deleting a data radio bearer, a user equipment, and an access network functional entity.
  • 5G Fifth-generation mobile communication
  • 5G Next Generation
  • 2G Next Generation
  • 3rd-Generation 3rd-Generation
  • LTE Long Compared with the Term Evolution (LTE) network
  • UE user equipment
  • NGCN Next Generation Core Network
  • AN Access Network
  • RB Radio Bearer
  • DRB Data Radio Bearer
  • the AN can flexibly establish multiple DRBs as needed, and can also delete the established bearers according to requirements. For example, when the number of DRBs between the AN and the UE reaches the upper limit, the DRB needs to be deleted.
  • the delete DRB is mainly initiated by a Packet Data Network Gateway (PGW).
  • PGW Packet Data Network Gateway
  • EPS Evolved Packet System
  • MME Mobility Management Entity
  • SGW Serving Gateway
  • the MME sends a deactivation request to the base station eNB.
  • the eNB deletes the DRB corresponding to the EPS bearer by using a Radio Resource Control (RRC) reconfiguration process according to the MME's deactivation request.
  • RRC Radio Resource Control
  • the bearer deletion is also end-to-end. That is, when the network side decides to delete the EPS bearer, it will trigger the deletion correspondingly. DRB.
  • the core network The DRB bearer deletion process cannot be initiated without being aware of the DRB.
  • the embodiment of the invention discloses a method for deleting a data radio bearer, a user equipment and an access network function entity, which can flexibly delete the DRB.
  • a first aspect of the embodiments of the present invention discloses a method for deleting a data radio bearer, including:
  • the first device acquires the identifier of the target data radio bearer DRB, where the target DRB is the DRB to be deleted;
  • the first device sends a delete radio bearer request to the second device, where the delete radio bearer request carries the identifier of the target DRB, and the delete radio bearer request is used to request the second device to use the identifier of the target DRB. Delete the target DRB.
  • the first device in the embodiment of the present invention can flexibly delete the DRB, trigger the release of the air interface resource corresponding to the DRB, and meet the requirement of the newly created DRB, thereby ensuring the rational use of the air interface resource.
  • the first device is a user equipment UE, and the second device is an access network function entity ANF; or
  • the first device is the ANF
  • the second device is the UE.
  • the method for deleting the DRB in the embodiment of the present invention may be applied to the user equipment UE and the access network function entity ANF.
  • the target DRB includes at least one of the following: an aged DRB, a DRB in which all services have ended, and a DRB in which the QoS rules are all deleted; wherein the aging DRB reaches or exceeds a preset for a continuous idle time. The aging time of the DRB.
  • the target DRB in the embodiment of the present invention may be one or more.
  • the first device acquires the identifier of the target DRB, including:
  • the first device acquires the identifier of the first DRB
  • the first DRB is an established DRB between the first device and the second device. Any of them.
  • An embodiment of the present invention provides a method for obtaining an identifier of a target DRB, and the aging DRB can be used as a target DRB, so as to delete the aged DRB.
  • the first device acquires the identifier of the target DRB, including:
  • the first device determines the target DRB, and obtains an identifier of the target DRB.
  • the target DRB to be deleted is determined, so as to delete the target DRB, and then release the air interface resource corresponding to the target DRB. To meet the needs of the new DRB, to ensure the rational use of resources.
  • the determining, by the first device, the target DRB includes:
  • the first device determines that the one with the longest aging time in the established DRBs is the target DRB; or
  • the first device determines that the one with the longest continuous idle time in the established DRBs is the target DRB; or
  • the first device determines the target DRB according to the quality of service attribute corresponding to the established DRB.
  • the DRB when the number of established DRBs between the UE and the ANF has reached the preset upper limit, the DRB is flexibly deleted, and the air interface resources corresponding to the DRB are released to meet the requirements of the newly created DRB, and the resources are guaranteed. Rational use.
  • the first device is a user equipment UE
  • the second device is an access network function entity ANF
  • the first device acquires an identifier of the target DRB, including:
  • the first device acquires the identifier of the second DRB;
  • the first device When the continuous idle time of the first quality of service rule of the second DRB reaches or exceeds the aging time of the first quality of service rule, the first device deletes the first quality of service rule, the first service
  • the quality rule is any of the stated quality of service rules
  • the first device acquires the identifier of the second DRB
  • the second DRB is any one of the established DRBs between the first device and the second device.
  • the DRB that has been terminated by all the services and the DRB whose all the QoS rules are deleted are used as the target DRB to be deleted, and the DRB is flexibly deleted, and the air interface resources corresponding to the DRB are released to meet the requirements of the newly created DRB. Rational use of resources.
  • the method before the acquiring, by the first device, the identifier of the target DRB, the method further includes:
  • the first device receives an aging time of the DRB sent by the control plane node function entity CPF.
  • the method further includes:
  • the ANF receives a tag data packet, the tag data packet carrying tag information, the tag information being used to indicate a DRB;
  • the ANF establishes a new DRB, and allocates an aging time for the new DRB.
  • the ANF in the embodiment of the present invention may establish a new DRB according to the tag information in the received tagged data packet, and allocate an aging time to the DRB, without obtaining the aging time of the DRB from the core network (for example, the control plane node functional entity CPF). Quickly obtain the aging time of the DRB.
  • the core network for example, the control plane node functional entity CPF.
  • a second aspect of the embodiment of the present invention discloses a user equipment, including:
  • a processing unit configured to acquire an identifier of a target data radio bearer DRB, where the target DRB is a DRB to be deleted;
  • a communication unit configured to send a delete radio bearer request to the access network function entity ANF, where the delete radio bearer request carries an identifier of the target DRB, where the delete radio bearer request is used to request the ANF according to the target DRB The identifier deletes the target DRB.
  • the target DRB includes at least one of the following: an aged DRB, a DRB in which all services have ended, and a DRB in which the quality of service rules are all deleted;
  • the aging DRB is a DRB whose continuous idle time reaches or exceeds a preset aging time.
  • the manner in which the processing unit obtains the identifier of the target DRB is specifically:
  • the processing unit acquires the identifier of the first DRB
  • the first DRB is any one of the established DRBs between the user equipment and the ANF.
  • the manner in which the processing unit obtains the identifier of the target DRB is specifically:
  • the processing unit determines the target DRB, and obtains an identifier of the target DRB.
  • the manner in which the processing unit determines the target DRB is specifically:
  • the processing unit determines that the one with the longest aging time in the established DRBs is the target DRB; or
  • the processing unit determines that the longest one of the established DRBs has the longest idle time is the target DRB; or
  • the processing unit determines the target DRB according to the quality of service attribute corresponding to the established DRB.
  • the manner in which the processing unit obtains the identifier of the target DRB is specifically:
  • the processing unit acquires the identifier of the second DRB;
  • the processing unit deletes the first quality of service rule, the first quality of service
  • the rule is any one of the quality of service rules; when all the quality of service rules of the second DRB are deleted, the processing unit acquires the identifier of the second DRB;
  • the second DRB is any one of the established DRBs between the user equipment and the ANF.
  • the communication unit is further configured to receive an aging time of the DRB sent by the control plane node function entity CPF.
  • a third aspect of the embodiments of the present invention discloses an access network functional entity, including:
  • a processing unit configured to acquire an identifier of a target data radio bearer DRB, where the target DRB is a DRB to be deleted;
  • a communication unit configured to send a delete radio bearer request to the user equipment UE, where the delete radio bearer request carries an identifier of the target DRB, where the delete radio bearer request is used to request the UE to delete according to the identifier of the target DRB The target DRB.
  • the target DRB includes at least one of the following: an aged DRB, a DRB in which all services have ended, and a DRB in which the quality of service rules are all deleted;
  • the aging DRB is a DRB whose continuous idle time reaches or exceeds a preset aging time.
  • the manner in which the processing unit obtains the identifier of the target DRB is specifically:
  • the processing unit acquires the identifier of the first DRB
  • the first DRB is any one of the established DRBs between the access network function entity and the UE.
  • the manner in which the processing unit obtains the identifier of the target DRB is specifically:
  • the processing unit determines the target DRB, and obtains an identifier of the target DRB.
  • the manner in which the processing unit determines the target DRB is specifically:
  • the processing unit determines that the one with the longest aging time in the established DRBs is the target DRB; or
  • the processing unit determines that the longest one of the established DRBs has the longest idle time is the target DRB; or
  • the processing unit determines the target DRB according to the quality of service attribute corresponding to the established DRB.
  • the communication unit is further configured to receive an aging time of the DRB sent by the control plane node function entity CPF.
  • the communication unit is further configured to receive a tag data packet, where the tag data packet carries tag information, where the tag information is used to indicate a DRB;
  • the processing unit is further configured to: when the DRB indicated by the label information is not established, establish a new DRB, and allocate an aging time to the new DRB.
  • a fourth aspect of the embodiments of the present invention discloses a user equipment, including a processor, a memory, and a communication interface, where the memory is used to store an instruction.
  • the processor invoking an instruction stored in the memory performs the following operations:
  • the target DRB includes at least one of the following: an aged DRB, a DRB in which all services have ended, and a DRB in which the quality of service rules are all deleted;
  • the aging DRB is a DRB whose continuous idle time reaches or exceeds a preset aging time.
  • the manner in which the processor obtains the identifier of the target DRB is specifically:
  • the manner in which the processor obtains the identifier of the target DRB is specifically:
  • the target DRB is determined, and the identifier of the target DRB is obtained.
  • the manner in which the processor determines the target DRB is specifically:
  • the manner in which the processor obtains the identifier of the target DRB is specifically:
  • the first quality of service rule Deleting the first quality of service rule when the continuous idle time of the first quality of service rule of the second DRB reaches or exceeds an aging time of the first quality of service rule, where the first quality of service rule is Any one of the quality of service rules; when all the quality of service rules of the second DRB are deleted, the identifier of the second DRB is obtained;
  • the second DRB is any one of the established DRBs between the user equipment and the ANF.
  • the processor is further configured to:
  • the aging time of the DRB sent by the control plane node function entity CPF is received by using the communication interface.
  • a fifth aspect of the embodiments of the present invention discloses an access network functional entity, including a processor, a memory, and a communication interface, where the memory is used to store an instruction.
  • the processor invoking an instruction stored in the memory performs the following operations:
  • the target DRB includes at least one of the following: an aged DRB, a DRB in which all services have ended, and a DRB in which the quality of service rules are all deleted;
  • the aging DRB is a continuous idle time that reaches or exceeds a preset aging time. DRB.
  • the manner in which the processor obtains the identifier of the target DRB is specifically:
  • the first DRB is any one of the established DRBs between the access network function entity and the UE.
  • the manner in which the processor obtains the identifier of the target DRB is specifically:
  • the target DRB is determined, and the identifier of the target DRB is obtained.
  • the manner in which the processor determines the target DRB is specifically:
  • the processor is further configured to:
  • the aging time of the DRB sent by the control plane node function entity CPF is received by using the communication interface.
  • the processor is configured to:
  • a sixth aspect of embodiments of the present invention discloses a computer readable storage medium storing one or more computer programs, the user equipment performing the foregoing by running the one or more computer programs On the one hand, the method of deleting the radio bearer of data is not repeated here.
  • the first device may determine the DRB to be deleted and trigger the deletion of the first device, so that the deletion of the DRB is more flexible, and the reasonable utilization of the air interface resource is ensured.
  • FIG. 1 is a schematic diagram of a 5G system architecture disclosed in an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for deleting a data radio bearer according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a method for deleting a DRB according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart diagram of another method for deleting a DRB according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart diagram of another method for deleting a DRB according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart diagram of another method for deleting a data radio bearer according to an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart diagram of another method for deleting a DRB according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic flowchart diagram of another method for deleting a DRB according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a functional entity of an access network according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of another access network functional entity disclosed in an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a 5G system architecture disclosed in an embodiment of the present invention.
  • a 5G system architecture disclosed in the embodiment of the present invention may include a user equipment UE101, an access network function entity ANF102, and a core network CN103, where CN103 includes a control plane node CPF 1031, a user plane node UPF 1032, and an application function.
  • Application Function (AF) 1033 is shown in FIG. 1 .
  • the UE 101 can access the CN 103 through the ANF 102, and the UE 101 can receive user plane data through the ANF 102 and the UPF 1032, and receive control plane data through the CPF 1031.
  • the CPF 1031 is used to transmit control signaling to the UE 101, the ANF 102, the UPF 1032, and the AF 1033.
  • the UE 101 When the UE 101 receives the user plane data through the ANF 102 and the UPF 1032, the UE 101 needs to establish a data radio bearer DRB with the ANF 102, and the DRB is also called an air interface radio bearer.
  • the UE 101 and the ANF 102 may establish multiple DRBs for transmitting different types of data (eg, data of different QoS attributes, data required by different GBRs, etc.).
  • the DRB established by the UE 101 and the ANF 102 is not used for a long time, the DRB may be deleted by the UE 101 or the ANF 102 to ensure reasonable utilization of resources.
  • the CPF may include a Mobility Management Function (MMF) and a Session Management Function (SMF). MMF and SMF can be deployed separately or in a functional entity.
  • MMF Mobility Management Function
  • SMF Session Management Function
  • FIG. 2 is a schematic flowchart of a method for deleting a data radio bearer according to an embodiment of the present invention.
  • FIG. 2 provides a UE-triggered method for deleting a DRB, including the following steps.
  • the UE acquires an identifier of the target data radio bearer DRB, where the target DRB is the DRB to be deleted.
  • the UE sends a delete radio bearer request to the ANF, where the delete radio bearer request carries the identifier of the target DRB, and the delete radio bearer request is used to request the ANF to delete the target DRB according to the identifier of the target DRB.
  • At least one DRB has been established between the UE and the ANF before performing step 201.
  • the UE may trigger the UE to acquire the identifier of the target DRB according to the preset trigger condition, where the target DRB may be one or more of the at least one DRB that has been established between the UE and the ANF.
  • Preset trigger condition Whether the established DRB is aging or whether the number of established DRBs reaches the upper limit.
  • the UE uses the aging DRB as the target DRB, triggers the UE to initiate the DRB deletion process, and performs steps 201-202;
  • the target DRB is determined from the established DRBs between the UE and the ANF, and the UE is triggered to initiate the DRB deletion process, and steps 201-202 are performed.
  • the UE may also determine the target DRB from the established DRBs between the UE and the ANF, and trigger the UE to initiate the DRB deletion process, if the number of the established DRBs is not aged or the number of established DRBs has not reached the upper limit, and the step 201- Step 202.
  • the UE After the UE obtains the identifier of the target DRB, the UE sends a delete radio bearer request carrying the identifier of the target DRB to the ANF, so that the ANF deletes the target DRB according to the identifier of the target DRB, where the target DRB is deleted, that is, the air interface configuration information corresponding to the target DRB is deleted. .
  • the ANF deletes the target DRB, the air interface resources occupied by the DRB can be released, so that the UE establishes a new DRB with the ANF.
  • the target DRB includes at least one of the following: an aged DRB, a DRB in which all services have been terminated, and a DRB in which the QoS rules are all deleted; wherein the aged DRB is a continuous idle time that reaches or exceeds a preset aging time. DRB.
  • each DRB corresponds to a preset aging time.
  • the UE starts timing. During the timing, if there is data transmitted on the DRB, the timing is restarted until the continuous idle time of the DRB reaches or exceeds the preset aging time, and the UE regards the DRB as an aging DRB.
  • the preset aging time corresponding to different DRBs may be different or the same.
  • the aging time may be determined by the operator based on user information, and the aging time may also be based on QoS parameters (eg, packet priority, packet loss rate, delay, etc.) or based on Packet Data Unit (PDU) sessions. Level to determine.
  • QoS parameters eg, packet priority, packet loss rate, delay, etc.
  • PDU Packet Data Unit
  • the DRB When a DRB is in an idle state (in an idle state, that is, a state in which the DRB is not used to receive or transmit data), the DRB is an aging DRB, and the UE acquires the identifier of the DRB, and Initiate the DRB deletion process.
  • the UE may obtain the aging time of the DRB from the CPF during the process of establishing a PDU session with the CPF. During the establishment of a DRB between the UE and the ANF, the UE may time according to the aging time corresponding to the DRB acquired in advance.
  • the service corresponding to the DRB may include services such as QQ and WeChat.
  • the DRB is regarded as the target DRB.
  • the DRB is used for data service transmission.
  • the DRB is used as the target DRB.
  • the DRB whose QoS rules are all deleted is the target DRB.
  • Quality of service the ability to provide services to a communication network.
  • one DRB may correspond to one or more quality of service rules (QoS rules), and when the DRB uses different QoS rules, the DRB The transmitted data meets different QoS.
  • QoS rules quality of service rules
  • the QoS rule may be deleted.
  • the UE determines that the DRB is the target DRB.
  • the obtaining, by the UE, the identifier of the target DRB in step 201 may include:
  • the UE acquires the identifier of the first DRB.
  • the first DRB is any one of the established DRBs between the UE and the ANF.
  • multiple DRBs may be established between the UE and the ANF, and each DRB corresponds to a preset aging time. Timing is initiated when a DRB is completed. During the timing, if there is data transmitted on the DRB, the timing is restarted. When the duration of the timing reaches or exceeds the aging time of the DRB, the UE acquires the identifier of the first DRB.
  • the method for the UE to obtain the identifier of the target DRB in step 201 may be specifically:
  • the UE determines the target DRB and obtains the identifier of the target DRB.
  • the target is determined from the established DRB between the UE and the ANF.
  • the DRB triggers the UE to initiate a DRB deletion process.
  • the UE may also delete the aged DRB, the DRBs whose services have been completed, and the DRBs whose service quality rules are all deleted.
  • the number of established DRBs is prevented from reaching the upper limit as much as possible, thereby ensuring the rational use of resources.
  • a UE-triggered DRB deletion method is provided, which can flexibly delete the DRB and release the DRB.
  • the manner in which the UE determines the target DRB may be specifically:
  • the UE determines that the longest aging time in the established DRBs is the target DRB;
  • the UE determines that the longest one of the established DRBs has the longest idle time as the target DRB;
  • the UE determines the target DRB according to the quality of service attribute corresponding to the established DRB.
  • the UE when the UE determines that the continuous idle time of all the established DRBs does not exceed the corresponding aging time, the UE selects the one with the longest aging time from all the established DRBs as the target DRB, or the UE has One of the established DRBs selects the longest continuous idle time as the target DRB, or the UE determines the target DRB according to the quality of service attribute corresponding to the established DRB.
  • the quality of service attributes can be classified into Guaranteed Bit Rate (GBR) and Non-Guaranteed Bit Rate (non-GBR).
  • the UE may determine the target DRB to be deleted according to the QoS attribute corresponding to the established DRB.
  • the UE may determine that the DRB whose QoS attribute is non-GBR is the target DRB that needs to be deleted. Alternatively, the UE determines the target DRB to be deleted according to the priority of the QoS attribute parameter used for establishing the DRB, that is, deletes the DRB with the lowest priority.
  • the UE When the UE needs to establish a new DRB, if the number of established DRBs between the UE and the ANF has reached the preset upper limit (for example, the preset upper limit is 8), a new DRB cannot be established. At this time from The UE determines the target DRB in the established DRB between the UE and the ANF, and the UE acquires the identifier of the target DRB (the DRB to be deleted), and triggers the UE to initiate the DRB deletion process.
  • the preset upper limit for example, the preset upper limit is 8
  • the method for the UE to obtain the identifier of the target DRB in step 201 may be specifically:
  • the UE acquires the identifier of the second DRB;
  • the UE When the continuous idle time of the first quality of service rule of the second DRB meets or exceeds the aging time of the first quality of service rule, the UE deletes the first quality of service rule, where the first quality of service rule is any one of the service quality rules; If all the quality of service rules of the second DRB are deleted, the UE acquires the identifier of the second DRB;
  • the second DRB is any one of the established DRBs between the UE and the ANF.
  • one DRB may correspond to one or more QoS rules, and each QoS rule corresponds to an aging time, and the aging time may be determined by the operator based on user information, and the aging time may be based on QoS parameters (for example, , packet priority, packet loss rate, delay, etc.) or based on Packet Data Unit (PDU) session level.
  • QoS parameters for example, , packet priority, packet loss rate, delay, etc.
  • PDU Packet Data Unit
  • the UE acquires the aging time corresponding to the QoS rule, and the UE starts timing. If the QoS rule is not used to process data during the aging time, the UE deletes the QoS. rule.
  • the method shown in FIG. 2 is implemented, and the DRB to be deleted can be flexibly deleted by the UE.
  • FIG. 3 is a schematic flowchart of a method for deleting a DRB according to an embodiment of the present invention. The method includes the following steps.
  • the UE establishes a PDU session with the CPF, and the UE obtains the aging time of the DRB from the CPF in the process of establishing a PDU session between the UE and the CPF.
  • the UE determines, according to the aging time of the established DRB (such as DRB1 and DRB2 in FIG. 3)
  • the target DRB to be deleted for example, DRB2
  • the UE when a DRB is established, the UE performs timing according to the aging time of the DRB that is obtained in advance. If the DRB does not use the DRB to receive or send data during the aging time, the UE determines that the DRB is to be deleted. Target the DRB and get the identity of the target DRB.
  • the UE sends a delete radio bearer request to the ANF, where the delete radio bearer request carries the identifier of the target DRB.
  • the ANF After receiving the delete radio bearer request, the ANF deletes the target DRB (for example, DRB2) according to the identifier of the target DRB.
  • DRB for example, DRB2
  • the ANF sends a delete radio bearer response message to the UE.
  • the method shown in FIG. 3 is implemented, and the UE can determine the target DRB to be deleted according to the aging time of the DRB, and provide a method for flexibly deleting the DRB, so as to ensure reasonable utilization of the air interface resources.
  • FIG. 4 is a schematic flowchart diagram of another method for deleting a DRB according to an embodiment of the present invention. The method includes the following steps.
  • the UE establishes a PDU session with the CPF, and the UE obtains the aging time of the service quality rule corresponding to the DRB from the CPF in the process of establishing the PDU session between the UE and the CPF; or, when the reflected service quality mechanism is activated, the UE acquires the established The aging time of the quality of service rules corresponding to the DRB.
  • the UE determines the target quality of service rule to be deleted according to the aging time of the service quality rule corresponding to the established DRB (such as DRB1 and DRB2 in FIG. 4).
  • the UE sends a delete radio bearer request to the ANF, where the deleted radio bearer request carries the identifier of the target DRB.
  • the ANF After receiving the delete radio bearer request, the ANF deletes the target DRB (for example, DRB2) according to the identifier of the target DRB.
  • DRB for example, DRB2
  • the ANF sends a delete radio bearer response message to the UE.
  • the ANF deletes the target DRB, that is, the ANF deletes the target (one or more) on the ANF. Radio configuration parameters corresponding to the DRB.
  • the method shown in FIG. 4 is implemented, and the UE can determine whether to delete the DRB according to whether the quality of service corresponding to the DRB is deleted, and provide a method for flexibly deleting the DRB, so as to ensure reasonable utilization of the air interface resources.
  • FIG. 5 is a schematic flowchart diagram of another method for deleting a DRB according to an embodiment of the present invention. The method includes the following steps.
  • the UE establishes a PDU session with the CPF.
  • the UE determines that the DRB of all the services in the established DRB (such as DRB1 and DRB2 in FIG. 5) has ended as the target DRB to be deleted (for example, DRB2).
  • the DRB is used for data service transmission.
  • the DRB is used as the target DRB to be deleted.
  • the UE sends a delete radio bearer request to the ANF, where the delete radio bearer request carries the identifier of the target DRB.
  • the ANF After receiving the delete radio bearer request, the ANF deletes the target DRB (for example, DRB2) according to the identifier of the target DRB.
  • DRB for example, DRB2
  • the ANF sends a delete radio bearer response message to the UE.
  • the method shown in FIG. 5 is implemented, and the UE can dynamically establish and delete the DRB, and provides a method for flexibly deleting the DRB, so as to ensure reasonable utilization of the air interface resources.
  • FIG. 6 is a schematic flowchart diagram of another method for deleting a data radio bearer according to an embodiment of the present invention.
  • FIG. 6 provides an ANF-triggered method for deleting a DRB, including the following steps.
  • the ANF obtains the identifier of the radio bearer DRB of the target data, and the target DRB is the DRB to be deleted.
  • the AIF sends a delete radio bearer request to the UE, where the delete radio bearer request carries the identifier of the target DRB, and the delete radio bearer request is used to request the UE to delete the target DRB according to the identifier of the target DRB.
  • At least one DRB has been established between the UE and the ANF before performing step 601.
  • the ANF may trigger the UE to acquire the identifier of the target DRB according to the preset trigger condition, and the target DRB may be one or more of the at least one DRB that has been established between the ANF and the UE.
  • the default triggering condition may be whether the established DRB is aging or whether the number of established DRBs reaches the upper limit.
  • the ANF takes the aging DRB as the target DRB, triggers the ANF to initiate the DRB deletion process, and performs steps 601-602; If the number of established DRBs reaches the upper limit, if a new DRB needs to be established, the target DRB is determined from the established DRBs between the ANF and the UE, and the ANF is triggered to initiate the DRB deletion process, and steps 601-602 are performed.
  • the ANF may also determine the target DRB from the established DRB between the ANF and the UE, and trigger the ANF to initiate the DRB deletion process, if the number of the established DRBs is not aged or the number of established DRBs does not reach the upper limit, and the ANF is initiated to initiate the DRB deletion process. Step 602.
  • the ANF After the ANF obtains the identifier of the target DRB, the ANF sends a delete radio bearer request carrying the identifier of the target DRB to the UE, so that the UE deletes the target DRB according to the identifier of the target DRB. After the UE deletes the target DRB, the air interface resource occupied by the DRB is released, so that the UE establishes a new DRB with the ANF.
  • the target DRB includes an aged DRB, where the aged DRB is a DRB whose continuous idle time reaches or exceeds a preset aging time.
  • each DRB corresponds to a preset aging time.
  • the ANF will start timing. During the timing, if there is data transmitted on the DRB, the timing is restarted until the continuous idle time of the DRB reaches or exceeds the preset aging time, and the ANF regards the DRB as the aging DRB.
  • the preset aging time corresponding to different DRBs may be different or the same.
  • the aging time may be determined by the operator based on user information, and the aging time may also be based on QoS parameters (eg, packet priority, packet loss rate, delay, etc.) or based on Packet Data Unit (PDU) sessions. Level to determine.
  • QoS parameters eg, packet priority, packet loss rate, delay, etc.
  • PDU Packet Data Unit
  • the DRB When a DRB is in an idle state (a state in which the DRB does not use the DRB to receive or transmit data), the DRB is an aging DRB, and the ANF obtains the ID of the DRB, and Initiate the DRB deletion process.
  • the ANF receives the aging time corresponding to the DRB sent by the control plane node CPF.
  • the ANF can obtain the aging time of the DRB from the CPF in the process of establishing a PDU session with the UE.
  • the UE can time the aging time according to the pre-acquired DRB.
  • the identifier of the target DRB obtained by the ANF in step 601 may include:
  • the ANF obtains the identifier of the first DRB.
  • the first DRB is any one of the established DRBs between the ANF and the UE.
  • multiple DRBs may be established between the ANF and the UE, and each DRB corresponds to a preset aging time.
  • the ANF will start timing.
  • the timing if there is data transmitted on the DRB, the timing is restarted.
  • the duration of the timing reaches or exceeds the aging time of the DRB, the ANF acquires the identifier of the first DRB.
  • the manner in which the ANF obtains the identifier of the target DRB in step 601 may be specifically:
  • the ANF determines the target DRB and obtains the identifier of the target DRB.
  • the target DRB is determined from the established DRB between the ANF and the UE, and the trigger is triggered.
  • ANF initiates the DRB deletion process.
  • an ANF-triggered DRB deletion method is provided, which can flexibly delete the DRB and release the DRB. Corresponding air interface resources to meet the needs of new DRB, ensuring the rational use of resources.
  • the manner in which the ANF determines the target DRB may be specifically:
  • the ANF determines that the longest aging time in the established DRBs is the target DRB;
  • the ANF determines that the longest idle time in the established DRBs is the target DRB
  • the ANF determines the target DRB according to the quality of service attribute corresponding to the established DRB.
  • the ANF determines that the continuous idle time of all the established DRBs does not exceed the corresponding aging time
  • the ANF selects the one with the longest aging time from all the established DRBs as the target DRB, or the ANF has been One of the established DRBs selects the longest continuous idle time as the target DRB, or the ANF determines the target DRB according to the quality of service attribute corresponding to the established DRB.
  • the quality of service attributes QoS attributes
  • GRR Guaranteed Bit Rate
  • non-GBR Non-Guaranteed Bit Rate
  • the ANF may determine the target DRB to be deleted according to the QoS attribute corresponding to the established DRB.
  • the ANF may determine that the DRB whose QoS attribute is non-GBR is the target DRB that needs to be deleted. Or the ANF determines the target DRB to be deleted according to the priority of the QoS attribute parameter used by the DRB, that is, deletes the DRB with the lowest priority.
  • the ANF When the ANF needs to establish a new DRB, if the number of established DRBs between the ANF and the UE has reached the preset upper limit (for example, the preset upper limit is 8), a new DRB cannot be established.
  • the target DRB is determined from the established DRBs between the ANF and the UE, and the ANF obtains the identifier of the target DRB (the DRB to be deleted), and triggers the ANF to initiate the DRB deletion process.
  • the manner in which the ANF obtains the identifier of the target DRB in step 601 may be specifically:
  • the ANF obtains the identifier of the second DRB.
  • the ANF deletes the first quality of service rule, and the first quality of service rule is any one of all the service quality rules; If all the quality of service rules of the second DRB are deleted, the ANF obtains the identifier of the second DRB;
  • the second DRB is any one of the established DRBs between the ANF and the UE.
  • one DRB may correspond to one or more QoS rules, and each QoS rule corresponds to an aging time, and the aging time may be determined by the operator based on user information.
  • the size may be determined based on QoS parameters (eg, packet priority, packet loss rate, delay, etc.) or based on Packet Data Unit (PDU) session level.
  • QoS parameters eg, packet priority, packet loss rate, delay, etc.
  • PDU Packet Data Unit
  • the ANF when creating or acquiring a QoS rule, the ANF obtains the aging time corresponding to the QoS rule. At this time, the ANF starts timing. If the QoS rule is not used to process data during the aging time, the ANF deletes the QoS. rule.
  • step 601 before performing step 601, the following steps may also be performed.
  • the ANF receives the tag data packet, and the tag data packet carries tag information, which is used to indicate a DRB;
  • the ANF establishes a new DRB and allocates an aging time for the new DRB.
  • the ANF may allocate an aging time to the DRB. For example, first, the UE establishes a PDU session with the network side, and the application server node AS (Application Server) sends a downlink data packet to the user plane node UPF. Then, after receiving the downlink data packet, the UPF marks the downlink data packet according to the QoS rule. The tag data packet is obtained, the tag data packet carries the tag information (also becomes the marking information), and the UPF sends the tag data packet to the ANF. Since different tag information can indicate different DRBs, the same tag information can indicate the same DRB, ANF.
  • AS Application Server
  • the ANF determines whether the DRB indicated by the tag information has been established. If yes, the ANF uses the DRB transmission tag data packet indicated by the tag information to the UE; if not, the ANF establishes a new DRB and allocates a new DRB. Aging time.
  • the tag information may be marked according to a QoS rule of the data packet. For example, the tag information may include or be used to indicate a packet priority, a packet loss rate, a delay, and the like.
  • the DRB to be deleted can be flexibly deleted through the ANF.
  • FIG. 7 is a schematic flowchart of another method for deleting a DRB according to an embodiment of the present invention. Figure. The method includes the following steps.
  • the UE establishes a PDU session with the CPF.
  • the CPF controls the AS to send downlink data packets to the UPF.
  • the UPF marks the downlink data packet according to the QoS rule to obtain the marked data packet, and sends the marked data packet to the ANF, where the marked data packet carries the tag information.
  • the ANF determines whether to create a new DRB according to the tag information.
  • the ANF creates a DRB and allocates an aging time to the DRB.
  • the ANF determines the target DRB to be deleted according to the aging time of the established DRB, and obtains the identifier of the target DRB.
  • the ANF sends a delete radio bearer request to the UE, where the delete radio bearer request carries the identifier of the target DRB.
  • the UE After receiving the radio bearer request, the UE deletes the target DRB according to the identifier of the target DRB.
  • the UE sends a delete radio bearer response message to the ANF.
  • the ANF can be used to determine whether to establish a new DRB by using the tag information.
  • the aging time can be allocated to the DRB.
  • the ANF can determine the target DRB to be deleted according to the aging time.
  • the ANF can be flexible. The DRB is deleted to ensure the reasonable use of air interface resources, and sufficient resources are available when new DRBs need to be created.
  • FIG. 8 is a schematic flowchart diagram of another method for deleting a DRB according to an embodiment of the present invention. The method includes the following steps.
  • the UE establishes a PDU session with the CPF.
  • the ANF obtains the aging time of the established DRB (such as DRB1 and DRB2 in FIG. 8) from the CPF in the process of establishing a PDU session between the UE and the CPF.
  • the ANF determines the target DRB (for example, DRB2) to be deleted according to the aging time of the established DRB, where the established DRB is preferably a non-guaranteed bit rate DRB (non-GBR DRB).
  • the ANF sends a delete radio bearer request to the UE, where the delete radio bearer request carries the identifier of the target DRB.
  • the UE After receiving the delete radio bearer request, the UE deletes the target DRB (for example, DRB2) according to the identifier of the target DRB.
  • DRB for example, DRB2
  • the UE sends a delete radio bearer response message to the ANF.
  • the method shown in FIG. 8 is adopted.
  • the ANF determines the aging time of the DRB sent by the core network, and determines the target DRB to be deleted according to the aging time of the established DRB.
  • the ANF can flexibly delete the DRB.
  • deleting the DRB refers to deleting the air interface resource configuration information corresponding to the DRB.
  • FIG. 9 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • the user equipment includes a processing unit 901 and a communication unit 902.
  • the processing unit 901 is configured to obtain an identifier of the target data radio bearer DRB, where the target DRB is the DRB to be deleted.
  • the communication unit 902 is configured to send a delete radio bearer request to the access network function entity ANF, delete the radio bearer request carrying the identifier of the target DRB, and delete the radio bearer request for requesting the ANF to delete the target DRB according to the identifier of the target DRB.
  • the DRB can be flexibly deleted by the UE.
  • the principle of the user equipment is similar to the method for deleting the data radio bearer in the method embodiment of the present application. Therefore, the implementation of the user equipment can be implemented by referring to the implementation of the method shown in FIG. 2 to FIG. I won't go into details here.
  • FIG. 10 is a schematic structural diagram of an access network functional entity according to an embodiment of the present invention.
  • the access network functional entity includes a processing unit 1001 and a communication unit 1002.
  • the processing unit 1001 is configured to obtain an identifier of the target data radio bearer DRB, where the target DRB is the DRB to be deleted.
  • the communication unit 1002 is configured to send a delete radio bearer request to the user equipment UE, and delete the wireless bearer.
  • the request carries the identifier of the target DRB, and the delete radio bearer request is used to request the UE to delete the target DRB according to the identifier of the target DRB.
  • the DRB can be flexibly deleted through the ANF.
  • the principle of the problem that the access network function entity solves the problem is similar to the method for deleting the data radio bearer in the method embodiment of the present application. Therefore, the implementation of the access network function entity can be seen in FIG. 6-8. The implementation of the method, the repetition will not be repeated.
  • FIG. 11 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
  • the user equipment 110 includes at least one processor 1101, at least one memory 1102, and at least one communication interface 1103.
  • the user equipment 110 may also include general components such as an antenna, which will not be described in detail herein.
  • the processor 1101 can be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the above program.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication interface 1103 is configured to communicate with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), and the like.
  • RAN Radio Access Network
  • WLAN Wireless Local Area Networks
  • the memory 1102 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions.
  • the dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this.
  • the memory can exist independently and be connected to the processor via a bus.
  • the memory can also be integrated with the processor.
  • the memory 1102 is configured to store application code that executes the above solution, and is controlled by the processor 1101 to execute.
  • the processor 1101 is configured to execute the application code stored in the memory 1102, and performs the following operations:
  • the communication interface 1103 is used to send a delete radio bearer request to the access network function entity ANF, and the radio bearer request carries the identifier of the target DRB, and the delete radio bearer request is used to request the second device to delete the target DRB according to the identifier of the target DRB.
  • the target DRB includes at least one of the following: an aged DRB, a DRB in which all services have ended, and a DRB in which the quality of service rules are all deleted;
  • the aging DRB is a DRB whose continuous idle time reaches or exceeds a preset aging time.
  • the manner in which the processor 1101 acquires the identifier of the target DRB is specifically:
  • the identifier of the first DRB is obtained when the continuous idle time of the first DRB reaches or exceeds the aging time of the first DRB, where the first DRB is any one of the established DRBs between the user equipment and the ANF.
  • the manner in which the processor 1101 acquires the identifier of the target DRB is specifically:
  • the target DRB is determined, and the identifier of the target DRB is obtained.
  • the manner in which the processor 1101 determines the target DRB is specifically:
  • the target DRB is determined according to the quality of service attribute corresponding to the established DRB.
  • the manner in which the processor 1101 acquires the identifier of the target DRB is specifically:
  • the continuous idle time of the first quality of service rule of the second DRB reaches or exceeds the first service
  • the aging time of the quality rule is deleted, the first QoS rule is deleted, and the first QoS rule is any one of the QoS rules; when all the QoS rules of the second DRB are deleted, the identifier of the second DRB is obtained;
  • the second DRB is any one of the established DRBs between the user equipment and the ANF.
  • the processor 1101 is also used to,
  • the aging time of the DRB sent by the control plane node function entity CPF is received by the communication interface 1103.
  • the DRB can be flexibly deleted by the UE.
  • FIG. 12 is a schematic structural diagram of another access network functional entity disclosed in an embodiment of the present invention.
  • the access network functional entity 120 includes at least one processor 1201, at least one memory 1202, and at least one communication interface 1203.
  • the access network function entity 120 may also include general components such as an antenna, which will not be described in detail herein.
  • the processor 1201 may be a general purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the above program.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • the communication interface 1203 is configured to communicate with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), and the like.
  • RAN Radio Access Network
  • WLAN Wireless Local Area Networks
  • the memory 1202 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type that can store information and instructions.
  • the dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this.
  • the memory can exist independently and be connected to the processor via a bus. Storage The device can also be integrated with the processor.
  • the memory 1202 is configured to store application code that executes the above solution, and is controlled by the processor 1201 for execution.
  • the processor 1201 is configured to execute the application code stored in the memory 1202 and perform the following operations:
  • the target DRB includes at least one of the following: an aged DRB, a DRB in which all services have ended, and a DRB in which the quality of service rules are all deleted;
  • the aging DRB is a DRB whose continuous idle time reaches or exceeds a preset aging time.
  • the manner in which the processor 1201 obtains the identifier of the target DRB is specifically:
  • the first DRB is any one of the established DRBs between the access network functional entity and the UE.
  • the manner in which the processor 1201 obtains the identifier of the target DRB is specifically:
  • the target DRB is determined, and the identifier of the target DRB is obtained.
  • the manner in which the processor 1201 determines the target DRB is specifically:
  • the target DRB is determined according to the quality of service attribute corresponding to the established DRB.
  • the processor 1201 is further configured to:
  • the aging time of the DRB sent by the control plane node function entity CPF is received by the communication interface 1203.
  • the processor 1201 is further configured to:
  • the tag data packet carrying the tag information, the tag information being used to indicate a DRB;
  • the DRB can be flexibly deleted through the ANF.
  • ROM read only Memory
  • RAM random access memory
  • PROM programmable read only memory
  • EPROM erasable programmable read only memory
  • OTPROM One-time Progr AmmAble ReAd-Only Memory
  • EEPROM Electronic Ally-ErAs Able Progr AmmAble ReAd-Only Memory
  • CD-ROM Compact Disc
  • CD-ROM Compact Disc

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de suppression d'un support radio de données, un équipement d'utilisateur et une entité de fonction de réseau d'accès. Le procédé comprend les étapes suivantes : un premier dispositif acquiert un identifiant d'un support radio de données (DRB) cible, le DRB cible étant un DRB à supprimer ; et le premier dispositif envoie une demande de suppression de support radio à un second dispositif, la demande de suppression de support radio transportant l'identifiant du DRB cible, et la demande de suppression de support radio servant à demander au second dispositif de supprimer le DRB cible selon l'identifiant du DRB cible. La mise en œuvre des modes de réalisation de la présente invention permet une suppression souple d'un DRB.
PCT/CN2016/108854 2016-12-07 2016-12-07 Procédé de suppression de support radio de données, équipement d'utilisateur et entité de fonction de réseau d'accès WO2018103009A1 (fr)

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PCT/CN2016/108854 WO2018103009A1 (fr) 2016-12-07 2016-12-07 Procédé de suppression de support radio de données, équipement d'utilisateur et entité de fonction de réseau d'accès

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102612095A (zh) * 2012-03-05 2012-07-25 电信科学技术研究院 一种ip数据包的传输方法和设备
CN102612096A (zh) * 2012-03-06 2012-07-25 电信科学技术研究院 一种ip数据包的传输方法和设备
WO2013181843A1 (fr) * 2012-06-08 2013-12-12 华为技术有限公司 Station de base, équipement utilisateur et procédé de communication
CN104378842A (zh) * 2013-08-12 2015-02-25 中兴通讯股份有限公司 一种连接管理方法及接入网网元

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102612095A (zh) * 2012-03-05 2012-07-25 电信科学技术研究院 一种ip数据包的传输方法和设备
CN102612096A (zh) * 2012-03-06 2012-07-25 电信科学技术研究院 一种ip数据包的传输方法和设备
WO2013181843A1 (fr) * 2012-06-08 2013-12-12 华为技术有限公司 Station de base, équipement utilisateur et procédé de communication
CN104378842A (zh) * 2013-08-12 2015-02-25 中兴通讯股份有限公司 一种连接管理方法及接入网网元

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