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A communication method and device

A technology for indicating information and gateways, which is applied in the field of communication and can solve problems such as the failure to establish IMS sessions between terminals.

Active Publication Date: 2022-05-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a communication method and device to solve the current problem that the IMS session cannot be normally established between terminals after the failure to establish the IMS default bearer

Method used

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  • A communication method and device
  • A communication method and device
  • A communication method and device

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Embodiment Construction

[0037] Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0038] The embodiment of the present application provides a communication method and device, wherein the method and the device are based on the same technical concept. Since the principles of the method and the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and there is no repetition repeat.

[0039] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: long term evolution (long termevolution, LTE) system, worldwide interconnection microwave access (worldwide interoperability for microwave access, WiMAX) communication system, fifth generation (5th Generation, 5G) systems, such as wireless access technology (new radioaccess technology, NR), and future communication systems.

[0040] Such as figure 1 A...

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Abstract

The present application relates to the technical field of communication, and discloses a communication method and device, which are used to solve the problem that terminals cannot normally establish an IMS session after the failure to establish the IMS default bearer. When the control plane gateway determines that the terminal establishes the IMS default bearer, the policy control device does not support the establishment of the IMS default bearer, and sends second indication information to the user plane gateway, where the second indication information is used to instruct the control plane gateway to bypass the policy control device. Subsequently, when the user plane gateway receives the IMS session request of the terminal, when the user plane gateway determines that the control plane gateway bypasses the policy control device, it sends the first indication information for the terminal to the control plane gateway, for Instructing the control plane gateway to send a first request for requesting establishment of a mapping relationship between the terminal and the control plane gateway to the policy control device. The policy control device establishes the mapping relationship between the terminal and the control plane gateway, so as to realize the normal establishment of the IMS session between the terminals.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a communication method and device. Background technique [0002] After the terminal is turned on, the access network device can initiate an attach process to the core network device, and further establish an IP multimedia subsystem (IP multimedia subsystem, IMS) default bearer, for example, establish an IMS voice bearer. When establishing the IMS default bearer, the core network device selects the control plane gateway, and the control plane gateway sends a request message to the policy control device. The control plane gateway is found through the IP address of the terminal. [0003] After the terminal establishes the IMS default bearer, the calling / called terminal can initiate a call process. For example, the calling terminal sends an IMS session request to the called terminal through a user plane gateway, a proxy call session device,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L65/1016H04L67/14H04L41/0893
CPCH04L65/1016H04L67/14H04L41/40H04L41/0894H04L65/1069H04L65/1046H04L67/141H04L67/146
Inventor 黄泽旭吴国军杨樊张文革钱涛徐日东张书兵
Owner HUAWEI TECH CO LTD