Shared tunnel management method and apparatus, core network node and access network node

A shared tunnel management method, comprising:

• obtaining, by a first core network node, multicast broadcast service (MBS) capability information of at least one access network node;
• wherein
• the MBS capability information is used for management of shared tunnel establishment;
• after the obtaining, by the first core network node, the MBS capability information of the at least one access network node, the method further comprises:
• performing a first operation based on the MBS capability information of the at least one access network node;
• wherein the first operation comprises:
• responding to a shared tunnel establishment request sent by a second core network node;
• wherein the responding to the shared tunnel establishment request sent by the second core network node comprises at least one of:
• receiving the shared tunnel establishment request sent by the second core network node, and accepting or rejecting the shared tunnel establishment request based on the MBS capability information of the access network node;
• or
• receiving the shared tunnel establishment request sent by the second core network node, and sending a group notification message or single terminal paging to the access network node based on the MBS capability information of the access network node and a state of the terminal, wherein the terminal is determined based on the shared tunnel establishment request.