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Method and device for obtaining 2G measurement frequency points of circuit switched fall back CSFB

A circuit domain fallback and frequency point technology, applied in the field of communication, can solve the problems of wrong measurement frequency point, CSFB time extension, low user experience, etc., to ensure effectiveness and accuracy, shorten call delay, and improve success rate Effect

Active Publication Date: 2016-08-10
CHINA MOBILE GRP GUANGDONG CO LTD
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Problems solved by technology

[0013] The purpose of the present invention is to provide a method and device for obtaining the 2G measurement frequency point of CSFB fallback in the circuit domain, to solve the problem of artificially and subjectively defining the 2G measurement frequency point in the existing TD-LTE network, which is prone to over-determined, missed-determined, Even the measurement frequency point is wrongly determined, resulting in prolonged CSFB and poor user experience

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  • Method and device for obtaining 2G measurement frequency points of circuit switched fall back CSFB

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Embodiment Construction

[0061] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to specific embodiments and accompanying drawings.

[0062] The inventor noticed during the invention that:

[0063] TD-SCDMA and TD-LTE share the baseband processing unit BBU, remote radio module RRU and antenna, and only need to add the TD-LTE baseband processing board to the BBU, and then upgrade the software to quickly convert a TD-SCDMA base station into a It also supports TD-LTE dual-mode sites. Dual-mode sites can save a lot of investment, equipment procurement and supporting construction, and reduce the number of antennas to reduce the public's sensitivity to base stations. It is a quick way to roll out TD-LTE networks on a large scale. Currently, TD-LTE sites are large Some are TD-SCDMA / TD-LTE dual-mode sites.

[0064] Dual-mode sites, 4G and 3G cells share the same site and antenna, an...

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Abstract

The present invention provides a method and device for obtaining the 2G measurement frequency point of CSFB fallback in the circuit domain, including: obtaining the relocation request signaling related to the 3G cell to be tested and the IU release signaling returned according to the relocation request signaling; Analyze and process the relocation request signaling and IU release signaling to obtain the first number of voice requests from the 3G cell to be tested to be switched to the 1st to N target 2G neighboring cells and the voice of the 3G cell to be tested to be successfully switched to the 1st to N The second count of the target 2G neighboring cell; transparently transmit the first count and the second count to the 4G base station co-located with the 3G base station of the 3G cell to be tested, and the 4G base station compares the first count and the second count according to the preset algorithm The processing is performed twice, and a preset number of measurement frequency points of target 2G neighboring cells are selected as the 2G measurement frequency points of CSFB according to the processing results. The invention ensures the validity and accuracy of 2G measurement frequency points, improves the success rate of CSFB and shortens the CSFB call delay.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method and a device for obtaining 2G measurement frequency points for CSFB fallback in the circuit domain. Background technique [0002] At present, the TD-LTE network adopts the voice solution of CS Fall Back, that is, when the terminal is on the LTE network, if the user has a voice demand, it will fall back to the 2G / 3G network before the call is established, and the voice will be provided by the circuit domain of the 2G / 3G network Service; when the voice is over, return to the LTE network according to the network instructions or your own judgment. [0003] That is, the CSFB can choose either the 2G network or the 3G network. However, in consideration of network operation efficiency and voice stability, 2G networks are more suitable for carrying voice services. Therefore, the current CSFB strategy is to choose 2G as the network for voice fallback. [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/30
Inventor 许时彰
Owner CHINA MOBILE GRP GUANGDONG CO LTD
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