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1. WO2006019695 - CHANNEL ESTIMATION SYSTEM FOR A WIDEBAND CODE DIVISION MULTIPLE ACCESS (WCDMA) COMMUNICATION SYSTEM

Publication Number WO/2006/019695
Publication Date 23.02.2006
International Application No. PCT/US2005/024567
International Filing Date 12.07.2005
IPC
H04B 1/69 2006.1
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
69Spread spectrum techniques
H04B 7/10 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
10Polarisation diversity; Directional diversity
H04B 1/10 2006.1
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
10Means associated with receiver for limiting or suppressing noise or interference
CPC
H04B 2201/70701
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
2201Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
69Orthogonal indexing scheme relating to spread spectrum techniques in general
707relating to direct sequence modulation
70701featuring pilot assisted reception
H04B 7/0613
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0613using simultaneous transmission
H04B 7/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
10Polarisation diversity; Directional diversity
H04L 25/0228
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
0202Channel estimation
0224using sounding signals
0228with direct estimation from sounding signals
Applicants
  • SKYWORKS SOLUTIONS, INC. [US]/[US] (AllExceptUS)
  • YANG, Ganning [US]/[US] (UsOnly)
  • YIM, Terence [US]/[US] (UsOnly)
  • WALLEY, John [US]/[US] (UsOnly)
Inventors
  • YANG, Ganning
  • YIM, Terence
  • WALLEY, John
Agents
  • TEMPEL, Michael, J.
Priority Data
10/895,17220.07.2004US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) CHANNEL ESTIMATION SYSTEM FOR A WIDEBAND CODE DIVISION MULTIPLE ACCESS (WCDMA) COMMUNICATION SYSTEM
(FR) SYSTEME D'ESTIMATION DE CANAUX DESTINE A UN SYSTEME DE COMMUNICATIONS A ACCES MULTIPLE PAR DIVISION DE CODE A BANDE LARGE (WCDMA)
Abstract
(EN) A channel estimation system is disclosed. The channel estimation system comprises a first memory element having a write function and a plurality of read functions, a pilot signal extraction element adapted to receive a first output of the first memory element, a programmable averaging element adapted to receive the output of the pilot signal extraction element, and a combiner adapted to receive a second output of the memory element and the output of the programmable averaging element, wherein the second output of the first memory element is delayed with respect to the first output of the first memory element.
(FR) L'invention concerne un système d'estimation de canaux. Le système d'estimation de canaux comprend un premier élément de mémoire possédant une fonction d'écriture et une pluralité de fonctions de lecture, un élément d'extraction de signal pilote conçu pour recevoir une première sortie du premier élément de mémoire, un élément programmable d'établissement de la moyenne, conçu pour recevoir la sortie de l'élément d'extraction de signal pilote, et un combineur conçu pour recevoir une deuxième sortie de l'élément de mémoire ainsi que la sortie de l'élément programmable d'établissement de la moyenne, la deuxième sortie du premier élément de mémoire étant retardée par rapport à la première sortie du premier élément de mémoire.
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