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Multi-mode mobile terminal and generation method for system clock signal thereof

A mobile terminal and system clock technology, applied in the field of communication, can solve the problem of high design complexity of multi-mode mobile terminals, and achieve the effect of accurate time offset and improved accuracy.

Active Publication Date: 2018-05-11
XIAMEN UNISOC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] What the present invention aims to solve is the problem of relatively high design complexity of existing multi-mode mobile terminals

Method used

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  • Multi-mode mobile terminal and generation method for system clock signal thereof
  • Multi-mode mobile terminal and generation method for system clock signal thereof
  • Multi-mode mobile terminal and generation method for system clock signal thereof

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Embodiment Construction

[0022] In the existing multi-mode mobile terminal, each network mode has its own clock generation unit, and the interrupt and scheduling of each network mode are driven by the corresponding clock generation unit, which leads to the design complexity of the multi-mode mobile terminal higher.

[0023] For example, when a multi-mode mobile terminal enters a sleep state, it usually needs to back up the system time in each network mode. When the multi-mode mobile terminal is woken up, it usually needs to rebuild the system time in each network mode. Moreover, when interoperability among multiple network modes is involved, the system time of the involved multiple network modes needs to be acquired synchronously.

[0024] In view of the above problems, an embodiment of the present invention provides a multi-mode mobile terminal, where a reference clock generator, a first register, and a mode converter are arranged in the multi-mode mobile terminal. The reference clock signal is out...

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Abstract

The invention discloses a multi-mode mobile terminal and a generation method for a system clock signal thereof. The multi-mode mobile terminal comprises a reference clock generator, applicable to outputting a reference clock signal; a first register, applicable to storing a time offset corresponding to each network mode of the multi-mode mobile terminal; a mode converter, coupled with the reference clock generator and the first register, applicable to computing a system clock signal corresponding to the corresponding network mode of the multi-mode mobile terminal based on the reference clock signal output by the reference clock generator and the time offset stored in the first register, and outputting the system clock signal. By using the abovementioned scheme, the design complexity of themulti-mode mobile terminal can be reduced.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a multi-mode mobile terminal and a method for generating a system clock signal thereof. Background technique [0002] With the development of mobile communication, various types of wireless communication systems have appeared, such as Global System for Mobile Communication (Global System for Mobile Communication, GSM), Code Division Multiple Access (Code Division Multiple Access, CDMA) system, Time Division Synchronous Code Division A multiple access system (Time Division-Synchronous Code Division Multiple Access, TD-SCDMA) and a long term evolution (Long Term Evolution, LTE) system, etc. Various mobile communication system networks can coexist. [0003] At present, many mobile terminals can support more than two network modes of the mobile communication system. Such a mobile terminal supporting more than two network modes is generally called a multi-mode mobile terminal...

Claims

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Application Information

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IPC IPC(8): H04W56/00H04W88/06
CPCH04W56/00H04W88/06
Inventor 申建平赵况平
Owner XIAMEN UNISOC TECH CO LTD
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