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Subdistrict reelection method of double-card double-standby mobile phone

A cell reselection, dual card dual standby technology, applied in the direction of selection device, radio/inductive link selection arrangement, transmission monitoring, etc.

Active Publication Date: 2008-06-11
WINGTECH COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Solution 2 supports dual card dual standby, but uses two independent systems. Therefore, in a single system, cell reselection is a standard GSM process

Method used

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  • Subdistrict reelection method of double-card double-standby mobile phone
  • Subdistrict reelection method of double-card double-standby mobile phone
  • Subdistrict reelection method of double-card double-standby mobile phone

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Embodiment Construction

[0065] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples, but the protection scope of the present invention should not be limited by this. The present invention requires synchronous cooperation of hardware design and software design, and the present invention will be described below from the perspectives of hardware and software.

[0066] The hardware implementation platform of the present invention is shown in Figures 1-1 and 1-2. The hardware uses a set of GSM communication circuit, an antenna, a single memory, two sets of SIM card interface circuits, and a set of other control circuits. The hardware is based on the general GSM hardware framework, and an analog switch is added to switch between two SIM cards through software control.

[0067] The GSM communication circuit includes a radio frequency circuit and a baseband processor, the radio frequency circuit includes a radio ...

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Abstract

The invention discloses a cell reelecting method of a Dual SIM phone. The method comprises the following steps that: 1. the mobile telephone tests the signal intensity of adjacent six cells corresponding to an SIM 1 and the BSIC of adjacent cells is decoded at least every sixty seconds, if the BSIC is found to change, the adjacent cells are judged to change, the BCCH of adjacent cells is decoded again every five minutes; 2. if the SIM 1 meets the reelecting condition, the reelecting flow is started; 3. an SIM 2 independently completes the reelecting flow. If the two cards respectively belong to the same operators, the other SIM card can share measurement parameters. The invention ensures that the Dual SIM phone can simultaneously support the cell reelection of the two SIM cards when only one independent GSM communication module exits and that the GSM mobile telephone can successfully enter into an idle state.

Description

technical field [0001] The invention relates to a cell reselection method for a GSM mobile phone, in particular to a cell reselection method for a dual-card dual-standby cell phone. Background technique [0002] With the rapid development of personal mobile communication, many users have more than two numbers corresponding to more than two SIM cards. In this case, you can choose to use two mobile phones, but it is very troublesome, so more and more users choose to use GSM mobile phones that support dual SIM. [0003] There are currently two technologies that support dual SIM: [0004] 1: Single GSM communication module, two SIM cards are connected electronically or mechanically, but only one can work at the same time. The other one is turned off. That is, only one number can be in use. [0005] 2: Dual GSM communication modules, each module supports a single SIM card, which can realize two numbers in standby state at the same time. Any one can call in and call out. [...

Claims

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Application Information

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IPC IPC(8): H04Q7/34H04Q7/38H04Q7/32H04B17/00H04W8/18H04W48/20H04W60/00
CPCH04W48/20H04W8/183H04W60/00
Inventor 蔡林川徐强高岩
Owner WINGTECH COMM
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