Communication terminal and network residing method thereof and baseband chip

Abstract

The invention discloses a communication terminal and a network residing method thereof and a baseband chip. The network residing method of the communication terminal comprises the steps of: in an idle time slot or an idle frame of a service card, determining a con-system adjacent cell satisfying a preset condition and a hetero-system adjacent cell satisfying a preset condition, of a cell in which a non-service card is located, wherein the preset condition is related to the signal intensity of the adjacent cells; selecting a network in which the non-service card resides based on the received signal intensity of the con-system adjacent cell satisfying the preset condition, the received signal intensity of the hetero-system adjacent cell and a system access threshold value; and after the service of the service card is released, residing a selected network by the non-service card. According to the communication terminal and the network residing method thereof and the baseband chip, disclosed by the invention, the power consumption and the paging loss rate of the terminal are reduced, and great convenience is brought to users.

Description

technical field [0001] The invention relates to the communication field, in particular to a communication terminal, a method for residing in a network, and a baseband chip. Background technique [0002] The development of mobile communication technology has formed a variety of mobile communication networks, such as the Global System for Mobile Communication (GSM, Global System for Mobile Communication) in the second generation mobile communication system (2G, Second Generation), the third generation mobile communication system ( 3G, Third Generation) in Time Division-Synchronous Code Division Multiple Access (TD-SCDMA, Time Division-Synchronous CDMA, CDMA, Code Division Multiple Access), Wideband Code Division Multiple Access (WCDMA, Wideband CDMA), and TD-SCDMA and Long-term evolution (LTE, Lone Term Evolution) in the next-generation mobile communication system of WCDMA, and Worldwide Interoperability for Microwave Access (WIMAX, Worldwide Interoperability for Microwave Acc...

AI Technical Summary

Problems solved by technology

[0009] The current multi-card and multi-mode mobile phones are more and more inclined to use a set of radio frequency, a set of antenna and a baseband chip to achieve multi-card multi-standby. When conducting business (at this time, the user card is also called a service card), the radio frequency module is used most of the time for the business of the service card and the measurement of the relevant parameters of the adjacent cells of the service card, while for the non-service card Then there is no operation, which will cause the non-business card to be in the state of no network service after the business card business is released

Therefore, after the business card service is released, it is necessary to perform a full-band network search on the non-service card again, which increases the network search time of the non-service card and also increases the power consumption of the terminal, and also leads to an increase in the paging loss rate of the non-service card. Increase

In addition, for non-service cards that support multiple modes, it is also necessary to consider which network mode the non-service card should reside in after the main card service is released, which further increases the network search time and terminal power consumption. and paging loss rate

[0010] U.S. Patent Publication No. 2006 / 0095600A1 discloses a dual-mode dual-card mobile station, which can support two different mobile communication networks, and automatically recognize the SIM card and select the corresponding driving mode. However, for the above problems, it does not involve

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