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Method, device and system for implementing reorientation in communication system

A communication system and redirection technology, which is applied in the field of communication, can solve the problems of increased call establishment delay, etc., and achieve the effects of reducing time consumption, ensuring continuity, and reducing delay

Active Publication Date: 2009-07-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0010] In the above redirection process, the UE needs to re-connect to the 2G / 3G network before it can receive the paging message sent by the MSC, and the CS domain of the 2G / 3G network does not have the MM (mobility management) context of the UE. (Need to perform the corresponding location update operation to obtain the corresponding MM context), therefore, the delay of call establishment during the whole redirection process is greatly increased

Method used

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  • Method, device and system for implementing reorientation in communication system
  • Method, device and system for implementing reorientation in communication system

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Embodiment Construction

[0035] In the embodiment of the present invention, in order to realize the redirection, the paging message for the user terminal can be sent to the first network and the second network respectively, and the paging message can reach the user terminal before accessing the second network. The second network; so that the user terminal can quickly access the second network after receiving the paging message on the first network and determining that it needs to be redirected to the second network, and respond to the paging in the second network message for redirection. Specifically, the first network and the second network may be networks using different access technologies or networks supporting different services.

[0036] In the process of sending the paging message, it may specifically be: after receiving the call request sent by the calling terminal, then send a paging message for the user terminal to the first network and the second network respectively, so that the user termi...

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Abstract

The invention discloses a method, a device and a system for realizing redirection in a communication system. The method mainly comprises the following steps: firstly, a page message aiming at user terminal is sent to the first network and the second network respectively, and the page message gets to a second network before the user terminal is put in the second network; after the user terminal receives page message through the first network, and determines that the page message is required to be redirected to the second network, the user terminal is reconnected into the second network, and answers to the page message issued by the second network. Therefore, the realization of the embodiment of the invention ensures that the time for cell reselection process and paging response process are minimized, and then the time delay of the entire call establishment process is reduced, and the service continuity in a coexisting network is ensured.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a technical scheme for realizing redirection in a communication system. Background technique [0002] With the development of SAE (System Architecture Evolution) / LTE (Long Term Evolution) network technology, the coexistence of SAE / LTE network and 2G / 3G network in the communication system appears. Wherein, the SAE / LTE network is used as a packet switching system carried by the PS (packet domain), and the corresponding voice service is carried and transmitted in the PS domain; the 2G / 3G network usually carries and transmits the voice service in the CS domain . [0003] Due to the coexistence of the SAE / LTE network and the 2G / 3G network, the user may move within the effective range of the SAE / LTE network and the 2G / 3G network. Therefore, it may be necessary to perform a corresponding redirection process during the call establishment process to ensure The call service between...

Claims

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Application Information

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IPC IPC(8): H04W36/14H04W76/02
Inventor 邓永锋余勇军王济勇
Owner HUAWEI TECH CO LTD
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