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US-12627521-B2 - Processing method, network node and storage medium

US12627521B2US 12627521 B2US12627521 B2US 12627521B2US-12627521-B2

Abstract

Provided are a processing method, a network node and a storage medium. The processing method is applied to a first network node and includes determining multicast broadcast service (MBS) control information and sending the MBS control information, where the MBS control information instructs a second network node to process an MBS data packet.

Inventors

  • Liping Wang
  • Tao Qi

Assignees

  • ZTE CORPORATION

Dates

Publication Date
20260512
Application Date
20220117
Priority Date
20210115

Claims (20)

  1. 1 . A processing method, being applied to a first network node and comprising: determining multicast broadcast service (MBS) control information; and sending the MBS control information to a second network node, wherein the MBS control information instructs the second network node to process an MBS data packet; wherein after determining the MBS control information, sending the MBS control information to a fourth network node in one of following manners: sending, according to an MBS session resource information request sent by the fourth network node, an MBS session resource information response message containing the MBS control information to the fourth network node; feeding back an MBS session resource setup response message containing the MBS control information to the fourth network node; sending a first MBS session established notification message containing the MBS control information to the fourth network node; or sending a first MBS session established notification response message containing the MBS control information to the fourth network node; wherein the first network node comprises an anchor-centralized unit-control plane (anchor-CU-CP), the anchor-CU-CP is designated by a core network or autonomously negotiated, the fourth network node comprises at least one non-anchor-CU-CP, and the second network node is a centralized unit-user plane (CU-UP) corresponding to the first network node and the fourth network node.
  2. 2 . The method of claim 1 , wherein determining the MBS control information comprises: acquiring a first MBS session resource setup request message sent by a third network node; and generating the MBS control information directly according to the first MBS session resource setup request message; wherein the first MBS session resource setup request message comprises area information or node identity information of the first network node, wherein the area information comprises one of: one network node, a cell list, or one area code, and the area code corresponds to one network node list or one cell list; wherein the third network node is the core network.
  3. 3 . The method of claim 2 , wherein sending, according to the MBS session resource information request sent by the fourth network node, the MBS session resource information response message containing the MBS control information to the fourth network node comprises: acquiring the MBS session resource information request sent by the fourth network node, wherein the MBS session resource information request comprises an MBS session identity or MBS session information; and sending the MBS session resource information response message to the fourth network node; wherein the MBS session information comprises at least one of: an MBS session identity or session resource setup information, and the session resource setup information comprises uplink next-generation (NG) user plane transport network information, a session type, a quality of service (QoS) flow identity, or a QoS parameter of a QoS flow level.
  4. 4 . The method of claim 1 , wherein determining the MBS control information comprises: acquiring a second MBS session resource setup request message sent by the fourth network node; and generating the MBS control information according to the second MBS session resource setup request message; wherein the second MBS session resource setup request message comprises an MBS session identity or MBS session information.
  5. 5 . The method of claim 1 , wherein determining the MBS control information comprises: generating the MBS control information directly; wherein sending the first MBS session established notification response message containing the MBS control information to the fourth network node comprises: acquiring first MBS session established query information sent by the fourth network node, wherein the first MBS session established query information comprises an MBS session identity; and sending the first MBS session established notification response message to the fourth network node.
  6. 6 . The method of claim 1 , wherein determining the MBS control information comprises: acquiring a third MBS session resource setup request message sent by a third network node, wherein the third MBS session resource setup request message comprises the MBS control information; or acquiring a fourth MBS session resource setup request message sent by a third network node, and generating the MBS control information according to the fourth MBS session resource setup request message, wherein the fourth MBS session resource setup request message comprises MBS session information and template information of the MBS control information, the template information comprises setup rule list information about QoS flow list identity-to-MBS radio bearer (MRB) identity mapping, a setup rule comprises at least one of the following: an MRB identity, a service data adaptation protocol (SDAP) configuration, or a packet data convergence protocol (PDCP) configuration, the SDAP configuration comprises one at least one of the following: an SDAP header, a default MRB, or a mapped QoS flow list, and the PDCP configuration comprises at least one of the following: a PDCP sequence number length, an out-of-order delivery indication, or a discard timer.
  7. 7 . The method of claim 1 , further comprising at least one of the following: acquiring an MBS session resource change message, wherein the MBS session resource change message comprises node identity information of a new first network node; sending changed MBS control information; transmitting anchor change information, wherein the anchor change information comprises node identity information of a new first network node; acquiring changed MBS control information; sending release information to the second network node; or sending change request information to the second network node, wherein the change request information requests for changing the MBS control information.
  8. 8 . The method of claim 1 , wherein the MBS control information comprises at least one of the following: an MBS session identity, an MBS session downlink aggregation maximum bit rate, NG uplink user plane transport layer information, or MRB list information required for an MBS session and established by the second network node, wherein the MRB list information comprises at least one of the following: an MRB identity, an SDAP configuration, a PDCP configuration, QoS parameter information, a QoS flow list contained in an MRB, a QoS flow identity contained in an MRB, or QoS parameter information of a QoS flow level contained in an MRB.
  9. 9 . A non-transitory storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the method of claim 1 .
  10. 10 . A processing method, being applied to a fourth network node and comprising: acquiring multicast broadcast service (MBS) control information from one of a first network node, a second network node, or a third network node; and sending the MBS control information; wherein acquiring the MBS control information from the first network node comprises one of: acquiring, according to an MBS session resource information response message, the MBS control information, wherein the MBS session resource information response message comprises the MBS control information; acquiring, according to an MBS session resource setup response message, the MBS control information, wherein the MBS session resource setup response message comprises the MBS control information; acquiring, according to a first MBS session established notification message, the MBS control information, wherein the first MBS session established notification message comprises the MBS control information; or acquiring, according to a first MBS session established notification response message, the MBS control information, wherein the first MBS session established notification response message comprises the MBS control information; wherein the first network node comprises an anchor-centralized unit-control plane (anchor-CU-CP), the anchor-CU-CP is designated by the third network node or autonomously negotiated, the fourth network node comprises at least one non-anchor-CU-CP, the second network node is a centralized unit-user plane (CU-UP) corresponding to the first network node and the fourth network node, and the third network node is a core network.
  11. 11 . The method of claim 10 , wherein acquiring the MBS control information from the second network node comprises: sending MBS session established request information to the second network node, wherein the MBS session established request information comprises an MBS session identity; and acquiring an MBS session established response information sent by the second network node, wherein the MBS session established response information comprises the MBS control information.
  12. 12 . The method of claim 10 , wherein acquiring, according to the first MBS session established notification response message, the MBS control information comprises: sending first MBS session established query information, and receiving the first MBS session established notification response message sent by the first network node.
  13. 13 . A network node, comprising: at least one processor; and a storage apparatus configured to store at least one program; wherein the at least one program, when executed by the at least one processor, enables the at least one processor to implement the method of claim 10 .
  14. 14 . A non-transitory storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the method of claim 10 .
  15. 15 . The method of claim 10 , wherein acquiring, according to the MBS session resource setup response message fed back by the first network node, the MBS control information comprises: acquiring a first MBS session resource setup request message sent by the third network node; sending a second MBS session resource setup request message to the first network node; and receiving the MBS session resource setup response message.
  16. 16 . The method of claim 10 , wherein acquiring the MBS control information from the third network node comprises: acquiring a third MBS session resource setup request message sent by the third network node, wherein the third MBS session resource setup request message comprises the MBS control information.
  17. 17 . The method of claim 10 , wherein acquiring, according to the MBS session resource information response message sent by the first network node, the MBS control information comprises: acquiring a first MBS session resource setup request message sent by the third network node; sending an MBS session resource information request to the first network node; and receiving the MBS session resource information response message; wherein the MBS session resource information request comprises an MBS session identity or MBS session information, wherein the MBS session information comprises at least one of the following: an MBS session identity or session resource setup information, and the session resource setup information comprises uplink next-generation (NG) user plane transport network information, a session type, a quality of service (QoS) flow identity, or a QoS parameter of a QoS flow level.
  18. 18 . The method of claim 10 , wherein the MBS control information comprises at least one of the following: an MBS session identity, an MBS session downlink aggregation maximum bit rate, NG uplink user plane transport layer information, or MBS radio bearer (MRB) list information required for an MBS session and established by the second network node, wherein the MRB list information comprises at least one of the following: an MRB identity, a service data adaptation protocol (SDAP) configuration, a packet data convergence protocol (PDCP) configuration, QoS parameter information, a QoS flow list contained in an MRB, a QoS flow identity contained in an MRB, or QoS parameter information of a QoS flow level contained in an MRB.
  19. 19 . A network node, comprising: at least one processor; and a storage apparatus configured to store at least one program; wherein the at least one program, when executed by the at least one processor, enables the at least one processor to implement: determining multicast broadcast service (MBS) control information; and sending the MBS control information to a second network node, wherein the MBS control information instructs the second network node to process an MBS data packet; wherein after determining the MBS control information, sending the MBS control information to a fourth network node in one of following manners: sending, according to an MBS session resource information request sent by the fourth network node, an MBS session resource information response message containing the MBS control information to the fourth network node; feeding back an MBS session resource setup response message containing the MBS control information to the fourth network node; sending a first MBS session established notification message containing the MBS control information to the fourth network node; or sending a first MBS session established notification response message containing the MBS control information to the fourth network node; wherein the network node comprises an anchor-centralized unit-control plane (anchor-CU-CP), the anchor-CU-CP is designated by a core network or autonomously negotiated, the fourth network node comprises at least one non-anchor-CU-CP, and the second network node is a centralized unit-user plane (CU-UP) corresponding to the network node and the fourth network node.
  20. 20 . The network node of claim 19 , wherein the at least one processor is enabled to implement determining the MBS control information by: acquiring a first MBS session resource setup request message sent by a third network node; and generating the MBS control information directly according to the first MBS session resource setup request message; wherein the first MBS session resource setup request message comprises area information or node identity information of the network node, wherein the area information comprises one of: one network node, a cell list, or one area code, and the area code corresponds to one network node list or one cell list; and the third network node is the core network.

Description

CROSS REFERENCE TO RELATED APPLICATIONS This is a National Stage Application, filed under 35 U.S.C. 371, based on International Patent Application No. PCT/CN2022/072319, filed on Jan. 17, 2022, which claims priority to Chinese Patent Application No. 202110053545.9 filed with the China National Intellectual Property Administration (CNIPA) on Jan. 15, 2021, the disclosures of which are incorporated herein by reference in their entireties. TECHNICAL FIELD The present application relates to the field of communication technology, for example, a processing method, a network node and a storage medium. BACKGROUND In the study of multicast broadcast service (MBS) technology, the mobility scenario of a user equipment (UE) is a basic and important scenario. To provide the UE with high-reliability MBS service, it is necessarily required that the UE receives MBS data continuously in the mobility process. For some services, data reception without packet loss is required, that is, lossless data transmission is required. Lossless transmission requires synchronization of sending behaviors on a network side in the mobility process. Therefore, how to achieve the synchronization of sending behaviors on the network side in the UE mobility scenario is urgent to be solved currently. SUMMARY The present application provides a processing method, a network node and a storage medium to effectively achieve the synchronization of sending behaviors on a network side in a UE mobility scenario. An embodiment of the present application provides a processing method. The method is applied to a first network node and includes the following: MBS control information is determined. The MBS control information is sent, where the MBS control information instructs a second network node to process an MBS data packet. An embodiment of the present application provides a processing method. MBS control information is acquired. The MBS control information is sent. An embodiment of the present application provides a processing method. The method is applied to a second network node and includes the following: MBS control information is acquired. An MBS data packet is processed based on the MBS control information. An embodiment of the present application provides a processing method. The method is applied to a third network node and includes the following: An MBS session resource setup request message is determined and sent. An embodiment of the present application provides a network node. The network node includes one or more processors and a storage apparatus. The storage apparatus is configured to store one or more programs, and when executed by the one or more processors, the one or more programs enable the one or more processors to implement the processing method described above. An embodiment of the present application provides a storage medium. The storage medium is configured to store a computer program, and the computer program, when executed by a processor, implements any method provided in embodiments of the present application. The preceding embodiments and other aspects of the present application and implementations thereof are described in more detail in the description of drawings, detailed description, and claims. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a flowchart of a processing method according to an embodiment of the present application; FIG. 2 is a flowchart of another processing method according to an embodiment of the present application; FIG. 3 is a flowchart of another processing method according to an embodiment of the present application; FIG. 3A is an architecture diagram of a common centralized unit (CU)-control plane (CP) according to an embodiment of the present application; FIG. 3B is a schematic diagram of an MBS session resource setup process according to an embodiment of the present application; FIG. 3C is a schematic diagram of an MBS session resource information request process according to an embodiment of the present application; FIG. 3D is a schematic diagram of an MBS session resource setup request process according to an embodiment of the present application; FIG. 3E is a schematic diagram of a process of indicating MBS control information based on a broadcast manner according to an embodiment of the present application; FIG. 3F is a schematic diagram of a process of querying MBS control information based on E1 according to an embodiment of the present application; FIG. 3G is a schematic diagram of a process of querying MBS control information based on Xn according to an embodiment of the present application; FIG. 3H is a schematic diagram of an MBS session resource setup process according to an embodiment of the present application; FIG. 4 is a flowchart of another processing method according to an embodiment of the present application; FIG. 5 is a structure schematic diagram of a processing apparatus according to an embodiment of the present application; FIG. 6 is a structure schematic diagram of another processi