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1. CN1983831 - Receiver and method for receiving radio signal

Office China
Application Number 200610083529.X
Application Date 30.05.2006
Publication Number 1983831
Publication Date 20.06.2007
Grant Number 100492921
Grant Date 27.05.2009
Publication Kind C
IPC
H04B 1/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
06Receivers
H04B 7/26
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
24for communication between two or more posts
26at least one of which is mobile
CPC
H04L 27/3863
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
32Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
34Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
38Demodulator circuits; Receiver circuits
3845using non - coherent demodulation, i.e. not using a phase synchronous carrier
3854using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
3863Compensation for quadrature error in the received signal
H03F 1/02
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
02Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
H03F 3/24
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
3Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
20Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
24of transmitter output stages
H03G 3/001
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
GCONTROL OF AMPLIFICATION
3Gain control in amplifiers or frequency changers ; without distortion of the input signal
001Digital control of analog signals
H03G 3/3052
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
GCONTROL OF AMPLIFICATION
3Gain control in amplifiers or frequency changers ; without distortion of the input signal
20Automatic control
30in amplifiers having semiconductor devices
3052in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
H04B 2001/045
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
02Transmitters
04Circuits
0408with power amplifiers
045with means for improving efficiency
Applicants Huawei Technology Co., Ltd.
华为技术有限公司
Inventors Ye Siqing
叶四清
Agents zhangying ling wangqi
北京德琦知识产权代理有限公司
北京德琦知识产权代理有限公司
Title
(EN) Receiver and method for receiving radio signal
(ZH) 一种接收机及接收无线信号的方法
Abstract
(EN)
The invention is concerned with the receiver and the method to receive the wireless signal, the key is: adds a multi-path correction and switch module that uses to process the correction of extent and phase for the multi-path digital base-band signal inputting by the multi-path correction and switch module, processes switch and outputs one path corrected digital base-band signal according to the switch strategy, finally processes the digital processing for one path inputting digital base-band signal by the digital receiving channel back end, outputs the bit stream. The invention can process correction for the multi-path digital base-band signal before switch, in order that the extent and the phase maintain consistent, and not need to use special synchronous information, therefore, can process switch quickly when the signal changes and needs to switch, achieve to trace channel change quickly.

(ZH)

本发明提供了一种接收机及接收无线信号的方法,其关键在于增加了一个多支路校正与切换模块,用于将从多支路校正前切换模块输入的多路数字基带信号进行幅度和相位的校正,然后再根据切换策略进行切换,并输出一路经过校正的数字基带信号,最后由数字接收通道后段对输入的一路数字基带信号进行进一步的数字处理,输出bit流。由于本发明方案将切换前的多路数字基带信号进行了校正,使之在幅度和相位上保持一致,无需使用专门的同步信息,所以在信号发生变化需要切换时,可以迅速地进行切换,达到快速跟踪信道变化的目的。

Also published as
US12277069