Processing method, network node and storage medium

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.

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.