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Method for achieving CS service in LTE network and related device

A technology for implementing methods and services, applied to the field of implementing CS services in LTE networks, and capable of solving problems such as the inability to reasonably select a method for developing CS services

Active Publication Date: 2015-01-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the current application scenario, the UE is limited to only use a certain inherent method to carry out CS services by default, and it is impossible to choose a reasonable way to carry out CS services according to the actual situation

Method used

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  • Method for achieving CS service in LTE network and related device
  • Method for achieving CS service in LTE network and related device
  • Method for achieving CS service in LTE network and related device

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Embodiment Construction

[0140] Embodiments of the present invention provide a method and device for implementing a CS service in an LTE network, which are used to promote flexible deployment of the CS service, which will be described in detail below.

[0141] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0142] It should be noted that the embodiment of the present invention mainly describes the solution of CS service in the LTE network, and relies on the cooperation of GERAN / UTRAN CS access, that is, UE under LTE coverage needs to switch to the CS netwo...

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Abstract

The embodiment of the invention discloses a method for achieving CS service in an LTE network and a related device. The method and the related device are used for promoting flexible conducting of the CS service. The method comprises the steps that visited circuit switched domain core network elements receive an SGs location update request message sent by an MME when UE sends a joint attachment request message to the MME, wherein the SGs location update request message is sent after the MME attaches the UE to an EPC; the visited circuit switched domain core network elements attach the UE to a CS domain; the visited circuit switched domain core network elements generate indicating information, wherein the indicating information is used for indicating a mode used when the UE carries out the CS service; the visited circuit switched domain core network elements respond to the MME with an SGs location update acceptance message including the indicating information so as to enable the MME to control the UE to carry out the CS service according to the indicating information.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for realizing CS service in an LTE network. Background technique [0002] With the increasing demand for wireless data services and the maturity of LTE (Long Term Evolution, Long Term Evolution) commercial conditions, operators will gradually introduce LTE networks on the basis of existing 2G / 3G networks to meet the rapidly increasing wireless data demands of people. Business needs. Before the large-scale deployment of VoLTE (Voice over LTE, voice over LTE) solutions based on IMS (IP Multimedia Subsystem, IP Multimedia Subsystem), CS service solutions in LTE networks will still rely on G / U (GERAN / UTRAN) CS (Circuit Switch, circuit switching) access cooperation, such as CSFB (Circuit Switched Fallback, circuit domain fallback) and SRVCC (Single Radio Voice Call Continuity, single radio access business continuity) Based CSFB . The above-mentio...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W36/14
CPCH04W8/08H04W36/0005H04W36/14
Inventor 邹烨吴晓波黄非朱思红
Owner HUAWEI TECH CO LTD
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