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Dual-mode dual-card dual-standby single-pass wireless terminal and communication method thereof

A single-pass wireless, dual-card dual-standby technology, applied in the field of wireless communication, can solve the problem of high cost and achieve the effect of improving satisfaction

Active Publication Date: 2010-09-08
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this solution is that two sets of radio frequency (Radio Frequency, referred to as "RF") physical layer devices are required, and the cost is relatively high.

Method used

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  • Dual-mode dual-card dual-standby single-pass wireless terminal and communication method thereof
  • Dual-mode dual-card dual-standby single-pass wireless terminal and communication method thereof
  • Dual-mode dual-card dual-standby single-pass wireless terminal and communication method thereof

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Embodiment Construction

[0028] In the following description, many technical details are proposed in order to enable readers to better understand the application. However, those skilled in the art can understand that without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0030] The first embodiment of the present invention relates to a dual-mode, dual-card, dual-standby, single-pass wireless terminal, the logical structure of which is as follows: figure 2 shown. The dual-mode dual-card dual-standby single-pass wireless terminal includes:

[0031] Support GSM and WCDMA dual-mode USIM card;

[0032] SIM card tha...

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Abstract

The invention relates to a mobile communication technology, and discloses a method for writing data in a user identification module card and a mobile terminal. In the invention, because a bit in an EF file is used to mark a data record with larger length which is written at present, whether the write of the data record is finished is identified through the bit value. Thus when the mobile terminal or an SIM card is unusual or suddenly power down, the mobile terminal knows that updated data content has been lost partially through the bit value, namely the data record is a wrong data record, so that the data which is updated in the SIM card is judged to an invalid data, and when the mobile terminal or the SIM card is normal or re-electrified, the data can be re-written or selected to be deleted, thereby ensuring the updated data accuracy in the SIM card.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a dual-mode dual-card dual-standby single-pass communication technology. Background technique [0002] With the rapid development of wireless communication, mobile phones have become an indispensable communication tool for people. People's demand for communication has also developed from simple voice communication to all-round services such as video, Internet access, and positioning. In order to adapt to the development of user needs, the communication system is also constantly evolving. At present, in many countries, the second generation mobile communication system (2G) such as Global System for Mobile communication (GSM for short) and Code Division Multiple Access (CDMA for short) has been transferred to broadband Code Division Multiple Access (WCDMA for short), Time Division Synchronous Code Division Multiple Access (TD-SCDMA for short), CDMA2000 and other third-genera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W88/06
CPCY02D30/70
Inventor 江平
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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