US 12,720,632 B2 · Communication method and apparatus

Abstract

Embodiments of this application relate to the field of communication technologies, and disclose a communication method and apparatus, to optimize a multicast service processing procedure. The method may include: A first session management function network element receives a first message from a second session management function network element, where the second session management function network element corresponds to a multicast session, and the first message notifies that the multicast session is activated or notifies that the multicast session is released. The first session management function network element sends first information to an access and mobility management function network element based on the first message, where the first information includes identification information of the multicast session and/or indication information indicating group paging.

Claims20

Dependent claims

A communication method, comprising:

receiving, by an access and mobility management function network element, a second message from a first session management function network element, the second message being used for the access and mobility management function network element indicating a terminal in a connection management-connected (CM-CONNECTED) state to the first session management function network element;
and
sending, by the access and mobility management function network element, a third message to the first session management function network element based on the second message, the third message comprising first terminal identification information of a first terminal, the first session management function network element is configured to manage a protocol data unit (PDU) session that is in one or more PDU sessions of the first terminal and that is associated with a multicast session, and the terminal in the CM-CONNECTED state comprises the first terminal.

A communication method, comprising:

sending, by a first session management function network element, a second message to an access and mobility management function network element, the second message being used for the access and mobility management function network element indicating a terminal in a connection management-connected (CM-CONNECTED) state to the first session management function network element;
and
receiving, by the first session management function network element, a third message from the access and mobility management function network element, the third message comprising first terminal identification information of a first terminal, the first session management function network element is configured to manage a protocol data unit (PDU) session that is in one or more PDU sessions of the first terminal and that is associated with a multicast session, and the terminal in the CM-CONNECTED state comprises the first terminal.

A communication system, comprising:

a first session management function network element;
and
an access and mobility management function network element;
the first session management function network element is configured to send a second message to the access and mobility management function network element, the second message being used for the access and mobility management function network element indicating a terminal in a connection management-connected (CM-CONNECTED) state to the first session management function network element;
the access and mobility management function network element is configured to receive the second message and send a third message to the first session management function network element based on the second message, the third message comprising first terminal identification information of a first terminal, the first session management function network element being configured to manage a protocol data unit (PDU) session that is in one or more PDU sessions of the first terminal and that is associated with a multicast session, and the terminal in the CM-CONNECTED state comprises the first terminal;
and
the first session management function network element is further configured to receive the third message.

4 more elements

Dependencies are inferred from the claim text.

Communication method and apparatus

Life of this patent

Communication method and apparatus

Life of this patent

Abstract

Claims20