Communication terminal and user card switching method thereof

A communication terminal and user card technology, applied in the field of communication, can solve the problems of difficult user card standby, difficulty in improving the communication service quality of user card in time, etc., and achieve the effects of reducing switching frequency, reducing network search overhead, and improving quality

Active Publication Date: 2014-07-09
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The problem to be solved by the present invention is that when the existing multi-card multi-mode communication terminal loses coverage or cannot normally reside in the network where the user card is on standby, it is difficu

Method used

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  • Communication terminal and user card switching method thereof
  • Communication terminal and user card switching method thereof
  • Communication terminal and user card switching method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0060] In this embodiment, the user card switching method is described by taking the communication terminal specifically as a dual-card dual-mode mobile phone as an example, wherein the two network modes are CDMA and GSM respectively, and the two user cards are SIM cards 1 and 1 respectively. And SIM card 2, in the case of dual-card normal standby, SIM card 1 is on standby in the CDMA network through its corresponding baseband module. Standby in GSM network. Suppose SIM card 1 is the first user card, SIM card 2 is another user card, that is, SIM card 2 is not the first user card, the baseband module corresponding to GSM (referred to as the GSM baseband module for short) is the first baseband module, and the baseband module corresponding to CDMA The module (referred to as the CDMA baseband module) is other baseband modules, that is, the CDMA baseband module is not the first baseband module.

[0061] The normal standby of SIM card 1 and SIM card 2 is as follows: figure 2 As sho...

Embodiment 2

[0108] In this embodiment, the user card switching method is still described by taking the communication terminal specifically as a dual-card dual-mode mobile phone as an example, wherein the two network modes are respectively CDMA and GSM, and the two user cards are respectively SIM cards 1 and SIM card 2, in the case of dual-card normal standby, SIM card 1 is on standby in the CDMA network through its corresponding baseband module, CDMA is the first network mode for SIM card 1 to standby, and SIM card 2 The module is on standby in the GSM network. Assuming that SIM card 1 and SIM card 2 are both first user cards, the baseband module corresponding to GSM (referred to as GSM baseband module for short) and the baseband module corresponding to CDMA (referred to as CDMA baseband module for short) are both first baseband modules.

[0109] The difference between this embodiment and the first embodiment lies in that the switching conditions are different. In this embodiment, the fi...

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Abstract

The invention discloses a communication terminal and a user card switching method thereof. The communication terminal at least supports two user cards, all user cards are at least corresponding to two network modes, and at least one first user card, among all the user cards, supports standby in two or more than two network modes; the communication terminal comprises each baseband module corresponding to each network mode, and at least one first baseband module, among all the baseband modules, support standby of two or more than two user cards in a network mode corresponding to the baseband module; and the communication terminal further comprises an application module, and the application module comprises a control unit which is suitable for outputting a control signal when it is detected that a switching condition is satisfied and a switching unit which is suitable for switching the baseband module communicating with the first user card between the first baseband module and other baseband modules under the control of the control signal. The technical scheme can realize smooth switching among user cards, improves network finding efficiency during switching, and reduces influences on normal services.

Description

technical field [0001] The invention relates to the communication field, in particular to a communication terminal and a user card switching method thereof. Background technique [0002] With the rapid development of communication technology, the exchange of information between people is also more frequent, a mobile phone can no longer meet people's needs, especially those engaged in sales, management and other work, sometimes need two or three or more mobile phones to Barely meets needs. And it is very inconvenient to carry so many mobile phones, therefore, multiple cards and multiple standby mobile phones have appeared on the market. This kind of mobile phone allows users to only need one mobile phone carrier, but can install multiple Subscriber Identity Module (SIM, Subscriber Identity Module) cards or global Subscriber Identity Module (USIM, Universal Subscriber Identity Module) cards, which is obviously more convenient than carrying multiple mobile phones a lot. [0...

Claims

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Application Information

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IPC IPC(8): H04W36/14H04W88/06
Inventor 倪金金孙龙陈贤亮江平
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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