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Realization method of SRVCC, system and terminal thereof

An implementation method and terminal technology, applied in electrical components, wireless communication, etc., can solve the problem that VoLTE terminals cannot perform concurrent data and voice services

Active Publication Date: 2015-09-23
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the VoLTE terminal is still in the coverage area of ​​the LTE network at this time, after adopting the existing SRVCC technical solution, the VoLTE terminal cannot perform concurrent data and voice services

Method used

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  • Realization method of SRVCC, system and terminal thereof
  • Realization method of SRVCC, system and terminal thereof
  • Realization method of SRVCC, system and terminal thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0086] The implementation method of SRVCC under the existing VoLTE scenario mainly includes the following steps:

[0087] Step 1: The LTE network side configures the 2G / 3G adjacent cell frequency point list and handover threshold for the terminal;

[0088] Step 2: After the LTE module of the terminal receives the configured 2G / 3G adjacent cell frequency point list and handover threshold, it reports the measurement results and frequency points that meet the measurement threshold to the LTE network side;

[0089] Step 3: The LTE network side sends an SRVCC switching command to the terminal according to the measurement results and frequency points reported by the terminal, and the SRVCC switching command carries the 2G / 3G target frequency point for switching;

[0090] Step 4: After the LTE module of the terminal receives the SRVCC switching command, it transmits the information of the target frequency point and the corresponding target cell contained in the SRVCC switching comman...

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Abstract

The invention discloses single radio voice call continuity (SRVCC) realization method. The method comprises the following steps that after a LTE module of a terminal receives a SRVCC command through a first radio frequency channel, a 2G / 3G target frequency point in the SRVCC command and target cell information are sent to a 2G / 3G module of the terminal, and bearing correlation processing is performed on data bearing except for voice bearing according to a covering condition of a LTE network; the 2G / 3G module carries out random access on a corresponding target cell through a second radio frequency channel and sends a SRVCC switching completion command. The invention simultaneously discloses the terminal and a realization system of the SRVCC.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a single radio mode voice call continuity (SRVCC, Single Radio Voice Call Continuity) implementation method, system and terminal. Background technique [0002] The 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) standard stipulates: Voice over LTE (VoLTE, Voice over LTE) terminals should support CSFB (Circuit Switched Fallback) mode and the second-generation mobile communication technology / third-generation Three generations of mobile communication technology (2G / 3G) mode. [0003] When covered by a VoLTE network, VoLTE terminals work in VoLTE mode; when covered by a CSFB network that does not support VoLTE functions, VoLTE terminals work in CSFB mode; when covered by a 2G / 3G network, VoLTE terminals work In 2G / 3G mode. According to the 3GPP standard: when a VoLTE terminal moves from a VoLTE network coverage area to a 2G / 3G network covera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/14H04W24/10
Inventor 王森赵琳李丽芳王小旭江海涛
Owner CHINA MOBILE COMM GRP CO LTD
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