US 12,720,423 B2Granted

Communication method and apparatus based on determining proxy call network elements

AssigneeHuawei Technologies Co., Ltd.

InventorsYishan Xu, Hualin Zhu, Shufeng Shi, Haoren Zhu

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Abstract

Example communication methods and apparatuses are provided. One example method includes receiving, by a session management network element, first information from user equipment, where the first information indicates a target IP multimedia subsystem (IMS) network to which the user equipment requests to connect, the target IMS network is one of a plurality of IMS networks, and the target IMS network is provided by a target service provider. The session management network element determines first call information based on the first information, where the first call information indicates a target proxy call network element, and the first call information is for establishing a connection between the user equipment and the target IMS network. The session management network element sends the first call information to the user equipment.

Claims17

Dependent claims

A communication method, comprising:

receiving, by a session management network element, identification information of a target service provider from user equipment, wherein the session management network element and the user equipment are located in a first network connected to a plurality of IP multimedia subsystem (IMS) networks, the identification information of the target service provider indicates a target IMS network to which the user equipment requests to connect, the target IMS network is one of the plurality of IMS networks, and the target IMS network is provided by the target service provider;
determining, by the session management network element, address information of a target proxy call network element based on the identification information of the target service provider, wherein the address information of the target proxy call network element is for establishing a connection between the user equipment and the target IMS network;
and
sending, by the session management network element, the address information of the target proxy call network element to the user equipment.

1 more element

A communication method, comprising:

sending, by a communication apparatus, identification information of a target service provider to a session management network element, wherein user equipment and the session management network element are located in a first network connected to a plurality of IP multimedia subsystem (IMS) networks, the identification information of the target service provider indicates a target IMS network to which the user equipment requests to connect, the target IMS network is one of the plurality of IMS networks, and the target IMS network is provided by the target service provider, wherein the communication apparatus is user equipment or a component in the user equipment;
and
receiving, by the communication apparatus, address information of a target proxy call network element from the session management network element, wherein the address information of the target proxy call network element is for establishing a connection between the user equipment and the target IMS network, wherein the address information of the target proxy call network element is based on the identification information of the target service provider.

A communication apparatus, comprising:

at least one processor;
and
one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to perform operations comprising:
sending identification information of a target service provider to a session management network element, wherein the communication apparatus and the session management network element are located in a first network connected to a plurality of IP multimedia subsystem (IMS) networks, the identification information of the target service provider indicates a target IMS network to which the communication apparatus requests to connect, the target IMS network is one of the plurality of IMS networks, and the target IMS network is provided by the target service provider;
and
receiving address information of a target proxy call network element from the session management network element, wherein the address information of the target proxy call network element is for establishing a connection between user equipment and the target IMS network, wherein the address information of the target proxy call network element is based on the identification information of the target service provider.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/308,981Filed 28 Apr 2023 · continuation
Priority: WO PCT/CN2020/1259162 Nov 2020
Published: US 2023/0269661 A124 Aug 2023
Granted: 25 Aug 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04W 36/0011
Control or signalling for completing the hand-off: for data sessions of end-to-end connection
H04W 48/18
Access restriction ; Network selection; Access point selection: selecting a network or a communication service
H04L 65/1016
Architectures or entities: iP multimedia subsystem [IMS]
H04L 65/1069
Session management: session establishment or de-establishment