Single-card multi-module terminal and communication processing method thereof

Abstract

The invention provides a single-card multi-module terminal and a communication processing method thereof, and belongs to the field of mobile communication. The single-card multi-module terminal comprises a master processing unit and a slave processing unit, wherein the master processing unit comprises an SIM (Subscriber Identify Module) driving module, an SIM access agent module and an SIM access module; the SIM access agent module is connected with the SIM driving module and the SIM access module, and is used for receiving access request information of the SIM access module from the master processing unit or the slave processing unit, sending the access request information to an SIM card through the SIM driving module and sending access response information to the corresponding SIM access module after the access response information from the SIM card is received. According to the technical scheme of the invention, the service delay of the single-card multi-module terminal can be reduced, incoming calls are prevented from being lost, and the utilization rate of 3G (third Generation) network is improved.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a single-card multi-mode terminal and a communication processing method thereof. Background technique [0002] With the development of 3G (3rd Generation, third-generation global mobile communication technology) technology, 3G terminals have been widely used, such as WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access) terminals, CDMA2000 (Code Division Multiple Access 2000, Code Division Multiple Access 2000) terminals and TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access) terminals have been widely used, and LTE (Long Term Evolution, long-term evolution) terminals are currently also In research and development. Due to the long-term construction of the 2G (2nd Generation, second-generation global mobile communication technology) network, its network coverage is much bet...

AI Technical Summary

Problems solved by technology

Existing 2G / 3G dual-mode terminals will switch from the current network to another network when the signal quality of the current network (2G or 3G) is degraded and the signal quality of another network (3G or 2G) is better. like figure 1 For example, switching from 2G working mode to 3G working mode, or switching from 3G working mode to 2G working mode

[0004] However, when the existing 2G / 3G dual-mode terminals switch between network modes, the following problems will occur: 1. Cause service delay, because switching from one network mode to another network mode usually requires network synchronization, location area Update, routing area update and other steps, if there is business happening at this time, it will cause business delay and affect user experience; 2. Cause loss of incoming calls, because network switching takes a certain amount of time, if a call comes during the switching process, and at this time 2G / 3G dual-mode terminals have left the old network, but have not yet registered on the new network, which will cause incoming calls to be lost; 3. The utilization rate of the 3G network is low because the coverage of the 3G network is not very good. To ensure the quality of voice services, The 2G / 3G dual-mode terminal will choose to switch to the 2G working mode, so that other services of the 2G / 3G dual-mode terminal will also occur in the 2G network, resulting in low utilization of the 3G network

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