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1. WO2001059996 - PEER-TO PEER COMMUNICATION SYSTEM WITH RECEIVER ADJUSTMENT USING STORED TRANSMISSION PARAMETERS

Publication Number WO/2001/059996
Publication Date 16.08.2001
International Application No. PCT/EP2001/000479
International Filing Date 17.01.2001
IPC
H04B 7/26 2006.1
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
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
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
H04B 7/2656
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
2643using time-division multiple access [TDMA]
2656for structure of frame, burst
H04L 27/2655
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
H04L 27/2657
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
2657Carrier synchronisation
H04L 27/2666
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
2666Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length
H04W 28/18
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
28Network traffic or resource management
16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
18Negotiating wireless communication parameters
Applicants
  • KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL]/[NL]
Inventors
  • CALDWELL, Richard, J.
  • FIFIELD, Robert
  • EVANS, David, H.
Agents
  • WHITE, Andrew, G.
Priority Data
0002735.908.02.2000GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PEER-TO PEER COMMUNICATION SYSTEM WITH RECEIVER ADJUSTMENT USING STORED TRANSMISSION PARAMETERS
(FR) SYSTEME DE COMMUNICATIONS D'EGAL A EGAL AVEC REGLAGE DE RECEPTEUR UTILISANT DES PARAMETRES DE TRANSMISSION STOCKES
Abstract
(EN) In a radio communication system comprising a plurality of stations (100a, 100b, 100c) operating in a peer-to-peer mode, each station stores information relating to the transmission parameters of other stations. Such information may include the frequency offset and received signal strength of signals form the other stations. One station acts as central controller and allocates time slots for transmission from a first station (100a) to a second station (100b). Before the first station (100a) receives a signal from the second station (100b) it makes initial adjustments to its receiver circuitry depending on the stored information about previous signals received from that station (100b). This simplifies the task of adjusting the receiver circuitry during the preamble of the signal transmitted by the second station (100b).
(FR) Dans un système de radiocommunications comprenant plusieurs stations (100a, 100b, 100c) fonctionnant en mode d'égal à égal, chaque station stocke des informations concernant les paramètres de transmission des autres stations. Ces informations peuvent comporter le décalage de fréquence et l'intensité des signaux reçus provenant des autres stations. Une station sert de contrôleur central et attribue des créneaux de temps destinés à la transmission depuis une première station (100a) vers une deuxième (100b). Avant que la première station (100a) reçoive un signal de la deuxième (100b), elle effectue les réglages initiaux de ses circuits de réception en fonction des informations stockées concernant les signaux reçus précédemment par la station en question (100b). Ceci permet de simplifier le réglage des circuits de réception au cours du préambule du signal transmis par la deuxième station (100b).
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