Method and system based on location-optimized fallback

A technology of current location and location information, applied in the field of communication, can solve the problem of long call setup time, and achieve the effect of reducing service time, saving measurement steps, and reducing connection failures

Active Publication Date: 2019-10-25
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to at least partly solve the technical problem that the mobile terminal needs to perform location update during the call process in the prior art, and the whole call setup time is relatively long, the present invention is completed

Method used

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  • Method and system based on location-optimized fallback
  • Method and system based on location-optimized fallback

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Such as figure 1 As shown, the present invention provides a method for optimizing fallback based on location, including:

[0044] Step S1: The eNB establishes an association table of TAI information of the mobile terminal, frequency information of the fallback cell, and location information;

[0045] Step S2: When the mobile terminal establishes a call, the MME sends an indication of the mobile terminal to fall back to the cell to the eNB, and carries the current location information of the mobile terminal;

[0046] Step S3: The eNB receives the current position information of the mobile terminal, and measures the distance between the current position of the mobile terminal and each corresponding position of each relevant cell in the association table. When the measured distance between the mobile terminal and a certain position of a relevant cell in the association table is less than At the preset threshold, send the cell frequency information to the mobile terminal and instr...

Embodiment 2

[0066] Such as figure 2 As shown, according to another aspect of the present invention, the present invention also provides a system for optimizing fallback based on location, including: eNB1, MME2 and mobile terminal 3;

[0067] The eNB1 is used to establish an association table of TAI information, fallback cell frequency information and location information of the mobile terminal;

[0068] The MME2 is used to send the mobile terminal fallback cell indication to the eNB1 when the mobile terminal 3 establishes a call, and carry the current location information of the mobile terminal 3;

[0069] The eNB1 is also used to receive the current location information of the mobile terminal 3, and measure the distance between the current location of the mobile terminal and each corresponding location of each related cell in the association table. When the distance of the location is less than the preset threshold, send the cell frequency information to the mobile terminal 3 and instruct the...

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Abstract

The invention provides a method based on location-optimized fallback. The method comprises the following steps: an eNB establishing an association table of TAI information, fallback cell frequency point information and location information; during a call, an MME sending a terminal fallback cell indication to the eNB and carrying the current position information of the terminal; the eNB receiving the current position information of the terminal, measuring the distance between the current position of the terminal and each corresponding position of each related cell in the association table, andsending the frequency point information of the cell to the terminal to indicate the terminal to fall back according to the frequency point of the cell when a certain distance is measured to be smallerthan a preset threshold value; and the TAI information of the terminal returning to the LTE network, receiving the frequency point information of the fallback cell and the position information of theterminal during fallback, and the association table being enriched. The invention further provides a corresponding system. According to the method and the system based on position optimization fallback, the mobile terminal can rapidly fallback to a proper cell, a fallback cell measurement step is omitted, position updating does not need to be carried out after fallback, the service duration is shortened, and the service quality is effectively ensured.

Description

Technical field [0001] The present invention relates to the field of communication technology, and in particular to a method for optimizing fallback based on location, and a system for optimizing fallback based on location. Background technique [0002] The LTE (Long Term Evolution) network based on the all-IP design of the packet domain cannot carry traditional circuit domain voice services. The target solution for carrying voice is VoLTE (Voice) based on IMS (IP Multimedia Subsystem). Over LTE, long-term evolution voice bearer) solution bears VoIP services (Voiceover Internet Protocol, IP-based voice transmission, that is, Internet telephony). However, before the VoLTE industry is mature and the LTE network has the conditions, the 2G / 3G network still needs to be used to carry voice, that is, the CSFB (Circuit Switched Fallback) solution is used to directly use the 2G / 3G network to provide voice services. The basic idea of ​​the CSFB (Circuit Switched Fallback) solution is that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/00H04W36/32H04W64/00
CPCH04W36/0011H04W36/0083H04W36/32H04W64/00
Inventor 张余
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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