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Set-up method for auto-time of asynchronous mobile communication terminal

A mobile communication terminal and terminal technology, which is applied in wireless communication, telephone communication, changing time indication and other directions, and can solve problems such as complicated setting and operation.

Inactive Publication Date: 2006-04-26
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] As mentioned above, when the terminal user moves from the first area of ​​the GSM / GPRS network to the second area, because the user must personally calculate the time difference between the two areas and reset the terminal time in each case, in the prior art, This setup operation is quite complicated

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  • Set-up method for auto-time of asynchronous mobile communication terminal
  • Set-up method for auto-time of asynchronous mobile communication terminal
  • Set-up method for auto-time of asynchronous mobile communication terminal

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Embodiment Construction

[0016] The preferred embodiments of the present invention are described below.

[0017] When the user moves from the first area of ​​the GSM (Global System for Mobile Communications) network to the second area, the asynchronous mobile communication is automatically reset by using the LAI (location area identifier) ​​of the first area and the LAI of the second area Terminal time.

[0018] In addition, when the user moves from the first area of ​​GPRS (General Packet Radio Service) to the second area, the asynchronous mobility is automatically reset by using the RAI (Routing Area Identity) of the first area and the RAI of the second area. The time of the communication terminal. Here, the time difference based on the LAI value and the RAI value is stored in the time difference table of the terminal.

[0019] Schematic diagram figure 1 The terminal in the GSM / GPRS network according to the present invention is shown.

[0020] Such as figure 1 As shown, the terminal according to the p...

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Abstract

In an automatic time setting method of an asynchronous mobile communication terminal, when a user moves from a first area to a second area in a GSM / GPRS network, a time difference between the two areas is calculated by using LAIs or RAIs of the first and second areas, and a time of the terminal is reset according to the calculated time difference. The asynchronous mobile communication terminal includes a RTC (real time clock) circuit for generating time information; a memory for storing time difference information between areas; and a CPU for reading a time difference corresponding to area information of a first and a second areas from the memory when a user moves from the first area to the second area and controlling the RTC circuit. <IMAGE>

Description

Technical field [0001] The present invention relates to a mobile communication terminal, in particular to an automatic time setting method in an asynchronous mobile communication terminal. Background technique [0002] Generally speaking, a synchronous mobile communication terminal working in a CDMA (Code Division Multiple Access) network receives time information from a base station. In contrast, asynchronous mobile communication terminals (hereinafter referred to as terminals) working in GSM (Global System for Mobile Communications) networks and GPRS (General Packet Radio Service) networks not only receive time information from the base station, but also use the RTC (Real Time Clock) in them. The circuit generates time information. [0003] In more detail, the RTC circuit in the terminal working in the GSM / GPRS network counts the low-frequency clock signal (32.768KHz), and generates time information (hour, minute, second), CPU and high-frequency clock signal (13MHz) Maintain sy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/32G04G5/00H04M1/00H04B1/38H04M1/725H04W8/18
CPCH04W8/183H04B1/40
Inventor 郑仁福
Owner LG ELECTRONICS INC