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Method and device for updating user context

An update method and context technology, applied in the field of communication, can solve the problems of waste of signaling resources, erroneous actions, service delays, etc., and achieve the effects of avoiding call drop or voice fallback failure, preventing erroneous actions, and reducing waste.

Active Publication Date: 2013-11-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the base station fails to update the key or fails to drop the voice, the mobility management entity (Mobility Management Entity; MME for short) cannot determine which operation failed, causing the MME to take wrong actions, thereby causing the UE to drop calls. Signaling resources are wasted, because the voice fallback fails, causing service delay and affecting the call effect

Method used

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  • Method and device for updating user context
  • Method and device for updating user context
  • Method and device for updating user context

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Embodiment Construction

[0029] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] The messages sent by the base station to the MME include: a user context update response (UE Context Modification Response) message or a user context update failure (UE Context Modification Failure) message. Usually, when the voice fallback and key update operations of the base station are all successful, a user context updat...

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PUM

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Abstract

A method and device for updating user context are disclosed in the present invention, wherein, the method for updating user context includes: receiving a user context update request message sent from a Mobility Management Entity (MME), wherein the user context update request message carries a new security key, security capability and voice fallback indicator (100); performing key update and / or voice fallback according to the new security key, security capability and voice fallback indicator (101); sending a user context update response message to the MME, wherein the user context update response message carries cause values corresponding to the operation result of performing key update and / or the operation result of performing voice fallback (102). The MME in the embodiment of the present invention adopts different measures for different operation results, thereby preventing wrong actions to the operation results of performing voice fallback and key update of a base station, avoiding User Equipment (UE) call drop and voice fallback failure and reducing waste of signaling resources.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a method and device for updating user context. Background technique [0002] In the 3GPP User Context Modification (UE Context Modification) process, the base station (eNodeB) may receive a User Context Modification Request (UE Context Modification Request) message sent by a Mobility Management Entity (Mobility Management Entity, MME). It can include parameters such as security key (Security key), security capability (Security Capability), and voice fallback (Circuit Switched Fallback; CSFB for short) indicator (indicator), etc. The base station (eNodeB) performs voice fallback ( CSFB) and rekeying operations. [0003] In the UE Context Modification Request message, the base station may receive the security key, security capability and voice fallback indication at the same time. Among them, the base station saves the received security key and security capa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/08H04W12/04H04W12/0433
CPCH04W12/04H04W36/0038H04W12/0431
Inventor 曾美艳戴明增
Owner HUAWEI TECH CO LTD