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1. WO2001063812 - WIRELESS COMMUNICATION TRANSMITTER AND RECEIVER

Publication Number WO/2001/063812
Publication Date 30.08.2001
International Application No. PCT/JP2001/001311
International Filing Date 22.02.2001
Chapter 2 Demand Filed 27.07.2001
IPC
H04L 5/14 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
14Two-way operation using the same type of signal, i.e. duplex
H04L 27/26 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
CPC
H04J 3/0608
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
3Time-division multiplex systems
02Details
06Synchronising arrangements
0602Systems characterised by the synchronising information used
0605Special codes used as synchronising signal
0608Detectors therefor, e.g. correlators, state machines
H04L 27/0012
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
0012arrangements for identifying the type of modulation
H04L 27/2613
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2602Signal structure
261Details of reference signals
2613Structure of the reference signals
H04L 27/2626
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2626Arrangements specific to the transmitter only
H04L 27/2656
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
2647Arrangements specific to the receiver only
2655Synchronisation arrangements
2656Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation
H04L 7/042
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
7Arrangements for synchronising receiver with transmitter
04Speed or phase control by synchronisation signals
041using special codes as synchronising signal
042Detectors therefor, e.g. correlators, state machines
Applicants
  • SHARP KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • IMAMURA, Kimihiko [JP]/[JP] (UsOnly)
Inventors
  • IMAMURA, Kimihiko
Agents
  • FUJIMOTO, Eisuke
Priority Data
2000-13541109.05.2000JP
2000-4395922.02.2000JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) WIRELESS COMMUNICATION TRANSMITTER AND RECEIVER
(FR) EMETTEUR ET RECEPTEUR DE COMMUNICATION SANS FIL
Abstract
(EN) A wireless communication transmitter comprises a part (1) for coding an information signal, a part (7) for holding a preamble signal consisting of a known signal sequence, and a part (5) for attaching the preamble signal to the coded information signal. The preamble signal has at least in part a cycle of Tw/N determined depending on the type of communication system used for transmission, where Tw is symbol length and N is a positive integer.
(FR) L'invention concerne un émetteur de communication sans fil comprenant une partie (1) de codage de signal d'information, une partie (7) de maintien de signal de préambule constitué d'une séquence de signaux connue, et une partie (5) pour le rattachement du signal de préambule au signal d'information codé. Le signal de préambule a au moins en partie un cycle de Tw/N que l'on détermine en fonction du type de système de communication utilisé pour la transmission, Tw étant la longueur de symbole et N étant un entier positif.
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