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1. WO2005099145 - TRANSMITTER AND RECEIVER FOR FAST FREQUENCY HOPPING BASED ON A CYCLIC FREQUENCY HOPPING PATTERN IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM

Publication Number WO/2005/099145
Publication Date 20.10.2005
International Application No. PCT/KR2005/001057
International Filing Date 12.04.2005
Chapter 2 Demand Filed 06.09.2005
IPC
H04J 11/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
11Orthogonal multiplex systems
H04B 1/713 2011.01
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
713using frequency hopping
H04B 1/7143 2011.01
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
713using frequency hopping
7143Arrangements for generation of hop patterns
H04L 27/26 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
CPC
G02C 5/143
GPHYSICS
02OPTICS
CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
5Constructions of non-optical parts
14Side-members
143having special ear pieces
G02C 5/20
GPHYSICS
02OPTICS
CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
5Constructions of non-optical parts
14Side-members
20adjustable, e.g. telescopic
H04B 1/7136
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
69Spread spectrum techniques
713using frequency hopping
7136Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform
H04B 2001/71367
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
69Spread spectrum techniques
713using frequency hopping
7136Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform
71367using a transform
H04L 2025/03541
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
03006Arrangements for removing intersymbol interference
03433characterised by equaliser structure
03535Variable structures
03541Switching between domains, e.g. between time and frequency
H04L 25/0242
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
0202Channel estimation
024channel estimation algorithms
0242using matrix methods
Applicants
  • SAMSUNG ELECTRONICS CO., LTD. [KR]/[KR]
Inventors
  • CHO, Yun-Ok
  • LEE, Ju-Ho
  • CHO, Joon-Young
  • JUNG, Peter
  • FABER, Thomas
  • SCHOLAND, Tobias
  • BRUCK, Guido
Agents
  • LEE, Keon-Joo
Priority Data
10-2004-002513712.04.2004KR
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TRANSMITTER AND RECEIVER FOR FAST FREQUENCY HOPPING BASED ON A CYCLIC FREQUENCY HOPPING PATTERN IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM
(FR) EMETTEUR ET RECEPTEUR DESTINES A UN SAUT DE FREQUENCE RAPIDE FONDE SUR UN MODELE DE SAUT DE FREQUENCE CYCLIQUE DANS UN SYSTEME DE MULTIPLEXAGE PAR REPARTITION EN FREQUENCE ORTHOGONAL
Abstract
(EN)
A transmitter and receiver for fast frequency hopping based on a cyclic frequency hopping pattern in an orthogonal frequency division multiplexing system. The transmitter outputs a transmission signal vector having a plurality of samples . In the receiver, a first Fast Fourier Transform (FFT) processor transforms a first received signal vector into a second received signal vector of a frequency domain by using FFT. An equalizer multiplies the received signal vector by an inverse matrix of a channel matrix representing characteristics of a channel from the transmitter to the receiver. A modified IFFT processor transforms output of the equalizer by using IFFT, and multiplies IFFT outputs of a last stage of the modified IFFT processor by predetermined gains associated with the cyclic frequency hopping pattern of the transmitter. A second FFT processor transforms output of the modified IFFT processor by using FFT to output a recovered received signal vector.
(FR)
L'invention concerne un émetteur et un récepteur destinés à un saut de fréquence rapide fondé sur un modèle de saut de fréquence cyclique dans un système de multiplexage par répartition en fréquence orthogonal. L'émetteur émet un vecteur de signal d'émission comprenant une pluralité d'échantillons. Dans le récepteur, un premier processeur de transformation de Fourier rapide (FFT) transforme un premier vecteur de signal reçu en un second vecteur de signal reçu d'un domaine fréquentiel au moyen de FFT. Un égalisateur multiplie le vecteur de signal reçu par une matrice inverse d'une matrice de canal représentant des caractéristiques d'un canal de l'émetteur au récepteur. Un processeur IFFT modifié transforme l'émission de l'égalisateur au moyen de IFFT et multiple les sorties IFFT d'une dernière étape du processeur IFFT modifié par des gains prédéterminés associés au modèle de saut de fréquence cyclique de l'émetteur. Un second processeur FFT transforme l'émission du processeur IFFT modifié au moyen de FFT, de manière à émettre un vecteur de signal reçu récupéré.
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