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1. EP0872062 - APPARATUS AND METHOD OF CONTROLLING TRANSMITTING POWER AND TRANSMIT RATE OF A WIRELESS TELECOMMUNICATIONS SYSTEM

Office European Patent Office
Application Number 96924257
Application Date 03.06.1996
Publication Number 0872062
Publication Date 21.10.1998
Publication Kind A2
IPC
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
H04J 13/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
JMULTIPLEX COMMUNICATION
13Code division multiplex systems
02using spread spectrum techniques
04using direct sequence modulation
G06F 9/44
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
9Arrangements for program control, e.g. control units
06using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
44Arrangements for executing specific programs
G06F 9/46
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
9Arrangements for program control, e.g. control units
06using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
46Multiprogramming arrangements
H04B 1/707
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
707using direct sequence modulation
H04B 7/005
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
005Control of transmission; Equalising
CPC
H04Q 11/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
QSELECTING
11Selecting arrangements for multiplex systems
04for time-division multiplexing
G06F 8/71
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
8Arrangements for software engineering
70Software maintenance or management
71Version control
G06F 9/546
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
9Arrangements for program control, e.g. control units
06using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
46Multiprogramming arrangements
54Interprogram communication
546Message passing systems or structures, e.g. queues
H04B 1/707
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
707using direct sequence modulation
H04B 1/7075
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
707using direct sequence modulation
7073Synchronisation aspects
7075with code phase acquisition
H04B 2201/70706
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
70706with means for reducing the peak-to-average power ratio
Applicants DSC COMMUNICATIONS
Inventors BHAGALIA SHASHIKANT
YEUNG JOEMANNE CHI CHEUNG
COOPER IAN LESLIE
LYSEJKO MARTIN
Designated States
Title
(DE) GERAT UND VERFAHREN ZUM REGELN DER SENDELEISTUNG UND DER UBERTRAGUNGSGESCHWINDIGKEIT IN EINEM DRAHTLOSEN NACHRICHTENUBERTRAGUNGSSYSTEM
(EN) APPARATUS AND METHOD OF CONTROLLING TRANSMITTING POWER AND TRANSMIT RATE OF A WIRELESS TELECOMMUNICATIONS SYSTEM
(FR) PROCEDE ET DISPOSITIF DE REGULATION DE LA PUISSANCE ET DE LA VITESSE D'EMISSION D'UN SYSTEME DE RADIOTELECOMMUNICATIONS
Abstract
(EN)
A wireless telecommunications system (1) includes a central terminal (10) for transmitting and receiving radio frequency signals to and from a subscriber terminal (20). The wireless telecommunications system (1) operates in one of three operating modes. In an acquisition mode during establishment of the downlink communication path, the downlink signal (212) is transmitted at a high power level and a low transmit rate with the receiver (202) operating at the low transmit rate. In a standby mode after establishment of the downlink communication path, the downlink signal (212) is transmitted at a low power level and a low transmit rate with the receiver (202) operating at the low transmit rate. In a traffic mode upon a request for wireless communication transmission, the downlink signal (212) is transmitted at a high power level and a high transmit rate with the receiver (202) adjusting to operate at the high transmit rate. Upon completion of the wireless communication transmission, the wireless telecommunications system (1) returns to the standby mode and the receiver (202) adjusts to operate at the low transmit rate.

(FR)
La présente invention concerne un système de radiotélécommunications (1) comprenant un terminal central (10) capable d'échanger des signaux de fréquence radio avec un terminal d'abonné (20). Le système de radiotélécommunications (1) peut fonctionner selon l'un de trois modes de fonctionnement. En mode 'acquisition', c'est-à-dire pendant l'établissement du trajet de communication de la liaison descendante, la transmission du signal de liaison descendante (212) se fait à un niveau élevé de puissance à faible vitesse de transmission, le récepteur (202) fonctionnant à faible vitesse de transmission. En mode 'attente', c'est-à-dire après établissement du trajet de communication de la liaison descendante, la transmission du signal liaison descendante (212) se fait à faible niveau de puissance et faible vitesse de transmission, le récepteur (202) fonctionnant à faible vitesse d'émission. En mode 'trafic', c'est-à-dire en réaction à une demande de transmission de radiocommunications, la transmission du signal de liaison descendante (212) se fait à niveau de puissance élevé et à vitesse d'émission élevée, le récepteur (202) se calant pour fonctionner à vitesse de transmission élevée. Dès l'achèvement la transmission de radiocommunications, le système de radiotélécommunications (1) repasse en mode 'attente', et le récepteur (202) se recale pour fonctionner à faible vitesse de transmission.