Granted Patent B2

US 12,627,521 · App. 18/261,522 · Granted May 12, 2026

Inventors: Liping Wang (Shenzhen, CN); Tao Qi (Shenzhen, CN)

Assignee: ZTE CORPORATION

H04L12/1877H04L12/1886H04W72/30

Abstract

Claims (88)

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 . 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 . 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 . 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 . 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 . 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 . 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 . 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 . 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 . 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 . 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 . 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 . 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 . 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 . 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 . 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 . 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 . 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 . 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 . 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.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (16)