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Methods and devices for continuation of terminating services in IMS communication networks

A technology of communication network and user equipment, applied in the field of continuation of service termination

Pending Publication Date: 2021-09-07
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no existing solution to restore service for other accesses than VoLTE connected to the failed P-CSCF

Method used

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  • Methods and devices for continuation of terminating services in IMS communication networks
  • Methods and devices for continuation of terminating services in IMS communication networks
  • Methods and devices for continuation of terminating services in IMS communication networks

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Embodiment Construction

[0041] The following detailed description describes methods and apparatus for continuation of terminated services in an IMS communication network. In the following detailed description, numerous specific details are set forth, such as logical implementations, types and interrelationships of system components, in order to provide a more thorough understanding of the present disclosure. However, one skilled in the art would realize that the present disclosure may be practiced without such specific details. In other instances, control structures, circuits and instruction sequences have not been shown in detail in order not to obscure the disclosure. Those of ordinary skill in the art, with the included description, will be able to implement appropriate functionality without undue experimentation.

[0042] References in the specification to "one embodiment," "an embodiment," "example embodiment," etc. mean that the described embodiment may include a particular feature, structure, o...

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PUM

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Abstract

A method implemented by a first network node in an IMS communication network is provided. The method may comprise: receiving a register request from a user equipment; and transmitting the register request which comprises contact information of the user equipment to a second network node. In the present disclosure, the P-CSCF may be able to route the terminating requests without UE registration bindings, which increases a successful rate of the terminating services.

Description

technical field [0001] The present disclosure relates generally to Internet Protocol Multimedia Subsystem (IMS) communication networks, and more particularly to methods and apparatus for continuation of terminated services in IMS communication networks. Background technique [0002] This section introduces aspects that may facilitate a better understanding of the disclosure. Accordingly, statements in this section are to be read and not to be construed as admissions that what is or is not in the prior art as such. [0003] The 3rd Generation Partnership Project (3GPP) has defined a P-CSCF (Proxy-Call Session Control Function) recovery procedure to recover service for a user equipment (UE) when a termination request cannot be routed due to P-CSCF failure. [0004] When the S-CSCF (Serving-Call Session Control Function) detects a P-CSCF failure, it can either report the failure to the HSS (Home Subscriber Server) or notify the PCRF (Policy and Charging Rules Function) via the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24
CPCH04L65/1016H04L65/1073H04L65/1046H04L65/1045H04W60/00
Inventor 黄斯聪胥贝林郭亮亮
Owner TELEFON AB LM ERICSSON (PUBL)