BSIC detection method under discontinuously receiving condition for bi-mode mobile terminal

Abstract

Disclosed is a BSIC detection method for a dual mode mobile terminal under the incontinuous receiving condition, which adopts the method by using X ms as the detection time, Y ms as the detection interval, and Z as the circulatory detection times; wherein, the value of X multiplying Z is bigger than or equal to the frame period of the detected frame; the integer of the remainder that Y divided by the multiframe duration of the detected frame equals to X; X is bigger than one detected frame duration, but smaller than the detected frame period, and Z takes the relative small integer value; wherein, the detected frame is a FCCH frame or a SCH frame. The method provided by the invention can effectively avoid the risk of missing a call being called under the incontinuous receiving condition, and ensures to resolve the certain frame that needs to be detected out on the precondition of receiving frames as few as possible; thereby minimizing the detection time, saving electricity of the mobile terminal, and in particularly being suitable for the WCDMA / GSM dual mode mobile terminal.

Description

technical field [0001] The present invention relates to a method for detecting BSIC in a dual-mode mobile terminal under discontinuous reception (DRX) conditions. Background technique [0002] Dual-mode mobile terminals are the only way for the development of mobile communications. For example, for WCDMA / GSM dual-mode mobile terminals, operators can still provide 3G users with complete network coverage even in the transition period when the WCDMA network is not yet sound by combining the existing GSM network and the new WCDMA network. . [0003] Therefore, 3GPP has formulated a specification for inter-system measurement of GSM when dual-mode mobile terminals work in WCDMA mode. Among them, in order to perform cell reselection, when the dual-mode mobile terminal works in the idle state of the WCDMA mode, it must be able to measure: [0004] -32 co-frequency cells (including serving cells); [0005] -32 inter-frequency cells, which can only be distributed on two carrier fr...

AI Technical Summary

Problems solved by technology

For example, if the above scheme 2 is adopted, since there is no reasonable arrangement for the duration of each detection and the interval between two detections, the GSM detection is simply initiated according to whether it is idle in WCDMA mode, which will often cause multiple GSM detections. For GSM detection, the received GSM frames do not include SCH frames or FCCH frames

This will inevitably cause too frequent GSM detection, thus causing a waste of mobile terminal power

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