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Multimode operation mode in mobile telecommunication device

A technology of mobile communication device and mode operation, applied in the directions of wireless communication, transmission monitoring, electrical components, etc.

Active Publication Date: 2014-03-19
XUESHAN TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This is a problem when the frequency synthesizers are shared since two separate frequency synthesizers are required in the TDSCDMA operation

Method used

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  • Multimode operation mode in mobile telecommunication device
  • Multimode operation mode in mobile telecommunication device
  • Multimode operation mode in mobile telecommunication device

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Embodiment Construction

[0056] The following is illustrated by the best embodiment of the present invention. The technology disclosed in the present invention relates to low-cost multi-mode operation in TDSCDMA and GSM standard mobile communications. By implementing the invention described herein, the present invention enables TDSCDMA / GSM multiplexing using two frequency synthesizers as compared to the prior art using three frequency synthesizers. modulo operation. The GSM monitoring profile of the present invention is independent of the frequency synthesizer setup and can use the proposed dual frequency synthesizer architecture as well as the prior art triple frequency synthesizer architecture. The configuration mode of the frequency synthesizer of the present invention allows not only the time division-synchronous code division multiple access / global system for mobile communication multi-mode operation of the dual frequency synthesizer, but also the aforementioned high-speed uplink packet access p...

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Abstract

Embodiments of techniques for low-cost multimode operation in wireless communications involving the Time Division Synchronous Code Division Multiple Access (TD-SCDMA) standard and the Global System for Mobile telecommunications (GSM) standard are described. In one aspect, a method of multimode operation in a mobile telecommunication device renders wireless communications based on the TD-SCDMA standard using either or both of first and second frequency synthesizers of the mobile telecommunication device. The method also receives signals based on the GSM standard using either or both of the first and second frequency synthesizers of the mobile telecommunication device. Techniques for performing baton handover as well as signal reception for multimedia broadcast and multicast services (MBMS) using two frequency synthesizers are also provided.

Description

technical field [0001] The present invention is related to mobile communication technology, especially related to Time Division Synchronous Code Division Multiple Access (Time Division Synchronous Code Division Multiple Access, TD-SCDMA) and Global System for Mobile Communications (Global System for Mobile telecommunications, GSM) standard It is related to multimode operation in mobile communication. Background technique [0002] With the development of science and technology, mobile communication technology has developed from the Advanced Mobile Phone System (AMPS) in the 1980s to the second generation (2G) mobile communication system in the 1990s, all of which are based on global mobile communication System standards, and finally developed to today's third generation (3G) mobile communication system. One of the third-generation mobile communication standards is Time Division Synchronous Code Division Multiple Access (TD-SCDMA) using Time-division duplexing (TDD). Through ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04W88/06H04B17/00
CPCH04W36/18H04W36/14H04W36/0066H04W88/06H04W36/0007
Inventor F·博夏德拉E·波尔顿S·班尼特
Owner XUESHAN TECH INC
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