Method and device for obtaining 2G measurement frequency point of CSFB fallback in circuit domain

Abstract

The invention provides a method and device for obtaining 2G measurement frequency points of circuit switched fall back CSFB. The method comprises following steps of obtaining relocation request signals related to a to-be-measured 3G cell; returning IU release commands according to the relocation request signals; analyzing the relocation request signals and the IU release signals; obtaining first times obtained by the fact that the to-be-measured 3G cell requests to be switched to first to Nth target 2G neighbor cells by voice and second times obtained by the fact that the to-be-measured 3G cell is switched to the first to Nth target 2G neighbor cells successfully by voice; transmitting the first times and the second times to a 4G base station sharing the same base station with the 3G base station of the to-be-measured 3G cell; processing the first times and the second times by the 4G base station according to a preset algorithm; and selecting the measurement frequency points of the target 2G neighbor cells with preset quantity as the 2G measurement frequency points of circuit switched fall back CSFB according to processing results. According to the method and the device, the effectiveness and accuracy of the 2G measurement frequency points are ensured, the success rate of the CSFB is improved, and the calling time delay of the CSFB is reduced.

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]...

AI Technical Summary

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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