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1. EP2023494 - A RECEIVER AND METHOD FOR RECEIVING WIRELESS SIGNAL

Office European Patent Office
Application Number 06828384
Application Date 18.12.2006
Publication Number 2023494
Publication Date 11.02.2009
Publication Kind B1
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
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 1/32
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
FAMPLIFIERS
1Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
32Modifications of amplifiers to reduce non-linear distortion
H03F 3/21
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
21with semiconductor devices only
H04B 1/04
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
02Transmitters
04Circuits
H04B 1/18
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
16Circuits
18Input circuits, e.g. for coupling to an antenna or a transmission line
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 TECH CO LTD
Inventors YE SIQING
Designated States
Title
(DE) EMPFÄNGER UND VERFAHREN ZUM EMPFANGEN EINES DRAHTLOSEN SIGNALS
(EN) A RECEIVER AND METHOD FOR RECEIVING WIRELESS SIGNAL
(FR) RECEPTEUR ET PROCEDE POUR LA RECEPTION D'UN SIGNAL SANS FIL
Abstract
(EN)
A receiver and method for receiving wireless signal are characterized in that a multipath correcting and switching module (402) is added, which is used for amplitude and phase correcting about the multipath digital baseband signals inputted from a multipath processing before correcting module (401), then the signals are switched according to a switching scheme, and one of multipath corrected digital baseband signals is outputted, finally the single digital baseband signal is inputted to the digital reception channel aftersection (403) and further digital processing about the signal is performed, the bit stream is outputted. Since the multipath digital baseband signals are corrected before switching and the amplitude and phase of the signals are concordant, the synchronization information is not necessary to be used, the signals can be switched rapidly when the signals are varied and need to be switched, and a rapid track for the signal varying is achieved.

(FR)
L'invention concerne un récepteur et un procédé pour la réception d'un signal sans fil, caractérisés en ce qu'est ajouté un module de correction et de commutation par trajets multiples (402), qui est utilisé pour la correction d'amplitude et de phase sur les signaux de bande de base numériques par trajets multiples entrés depuis un traitement par trajets multiples avant un module de correction (401), les signaux étant ensuite commutés selon un plan de commutation, et un des signaux de bande de base numériques corrigés par trajets multiples étant sorti, le signal de bande de base numérique unique étant enfin entré sur la section postérieure de canal de réception numérique (403) et un traitement numérique supplémentaire sur le signal étant réalisé, le flux binaire étant sorti. Étant donné que les signaux de bande de base numériques par trajets multiples sont corrigés avant la commutation et que l'amplitude et la phase des signaux sont concordantes, les informations de synchronisation ne sont pas nécessairement utilisées, les signaux peuvent être commutés rapidement lorsque les signaux sont variés et ont besoin d'être commutés, et un suivi rapide de la variation de signal est obtenu.

Also published as
US12277069