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A csfb circuit domain fallback method and mobile switching center

A circuit domain fallback and mobile management entity technology, applied in the communication field, can solve problems such as redundant steps and prolongation of CSFB fallback, and achieve the effects of shortening fallback delay, improving user experience, and reducing fallback steps

Active Publication Date: 2018-04-20
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a CSFB circuit domain fallback method and a mobile switching center, which solves the problem of redundant CSFB fallback process steps in the prior art, resulting in a long CSFB fallback delay

Method used

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  • A csfb circuit domain fallback method and mobile switching center
  • A csfb circuit domain fallback method and mobile switching center
  • A csfb circuit domain fallback method and mobile switching center

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Embodiment 1

[0054] Based on the above content, the embodiment of the present invention provides a circuit domain fallback method, such as figure 1 As shown, wherein, the circuit domain fallback method specifically includes the following steps:

[0055] 101. The MSC receives the SRVCC service indication sent by the MME, and acquires a CSFB indication identifier.

[0056] Wherein, the above-mentioned SRVCC service indication is used to instruct the MSC to execute the SRVCC process; the SRVCC service indication is sent by the base station instructing the MME after triggering the SRVCC process during the CSFB process, and the above-mentioned CSFB indicator (English: CSFBIndicator) is used to indicate that the MSC needs to The executed SRVCC process is triggered during the CSFB process. Specifically, if the above-mentioned SRVCC service indication contains the CSFB indication identifier, the MSC directly parses the CSFB indication identifier from the SRVCC service indication; if the SRVCC ser...

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Abstract

An embodiment of the invention provides a CSFB (Circuit Switched Fallback) method and a mobile switching center and relates to the communication field. The problem that CSFB delay is long due to the redundant CSFB process steps in the prior art is solved. The specific scheme comprises an SRVCC (Single Radio Voice Call Continuity) service instruction sent from an MME (Mobility Management Entity) is received by an MSC (Mobile Switching Center), a CSFB indicator is obtained, the interaction with an RNC (Radio Network Controller) is performed according to the SRVCC service instruction, corresponding wireless bearing resources are allocated to UE (User Equipment), the MSC determines that a session transfer process in the SRVCC process is not executed after the SRVCC service instruction sent from the MME is received, and an SRVCC service response is sent to the MME so as to enable a switching command is sent to the UE after the SRVCC service response is received by the MME to enable the UE to fall back to a 2 / 3G (Second Generation or Third Generation) network from a 4G (The Fourth Generation Mobile Communication Technology) network according to an instruction of the switching command. The CSFB method and the mobile switching center are applied to the CSFB.

Description

technical field [0001] The invention relates to the communication field, in particular to a CSFB circuit domain fallback method and a mobile switching center. Background technique [0002] In a Long Term Evolution (English: Long Term Evolution, LTE for short) network, when a user equipment (English: User Equipment, UE for short) makes a voice call, there are usually two ways to implement the voice call. Among them, one is implemented by circuit domain fallback (English: Circuit Switched Fallback, referred to as CSFB) technology, that is, the UE will fall back from the fourth generation mobile communication technology (English: the 4Generation Mobile Communication Technology, referred to as 4G) network to the second generation In mobile communication technology (English: Second Generation, referred to as 2G) / third generation mobile communication technology (English: 3rd Generation, referred to as 3G) network, use 2G / 3G network to realize voice service; the other is to use Int...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/14
CPCH04W36/0022H04W36/14H04W48/18H04W76/16
Inventor 许阳赫罡高功应林琳穆佳高枫
Owner CHINA UNITED NETWORK COMM GRP CO LTD