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1. WO2000042716 - RADIO COMMUNICATION SYSTEM

Publication Number WO/2000/042716
Publication Date 20.07.2000
International Application No. PCT/EP1999/010420
International Filing Date 24.12.1999
IPC
H04B 7/005 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
005Control of transmission; Equalising
CPC
H04W 52/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
06TPC algorithms
12Outer and inner loops
H04W 52/225
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
18TPC being performed according to specific parameters
22taking into account previous information or commands
225Calculation of statistics, e.g. average, variance
H04W 52/228
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
18TPC being performed according to specific parameters
22taking into account previous information or commands
228using past power values or information
H04W 52/283
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
18TPC being performed according to specific parameters
28using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
283Power depending on the position of the mobile
H04W 52/287
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
18TPC being performed according to specific parameters
28using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
287when the channel is in stand-by
H04W 52/288
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
18TPC being performed according to specific parameters
28using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
288taking into account the usage mode, e.g. hands-free, data transmission, telephone
Applicants
  • KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL/NL]; Groenewoudseweg 1 NL-5621 BA Eindhoven, NL
Inventors
  • BAKER, Matthew, P., J.; NL
  • MOULSLEY, Timothy, J.; NL
  • HUNT, Bernard; NL
Agents
  • TANGENA, Antonius, G.; Internationaal Octrooibureau B.V. Prof. Holstlaan 6 NL-5656 AA Eindhoven, NL
Priority Data
9900910.216.01.1999GB
9911622.020.05.1999GB
9915569.902.07.1999GB
9922575.724.09.1999GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) RADIO COMMUNICATION SYSTEM
(FR) SYSTEME DE RADIOCOMMUNICATION
Abstract
(EN)
A radio communication system has means for ensuring that power control of a communication channel has been established before the transmission of data. This is done by delaying initial transmission of a data channel (either at the start of a transmission or after a pause) until after the initial transmission of control channels. In one embodiment the transmission of a data channel can be delayed until adequate power control has been established. These techniques overcome the problem that data transmissions at the start of a data channel are likely to be corrupted if their power level is too low, or to generate extra interference if their power level is too high.
(FR)
L'invention porte sur un système de radiocommunication muni de moyens assurant que le réglage de la puissance de transmission a bien été effectué avant la transmission de données. Cela s'obtient en retardant la transmission initiale d'un canal de données (soit au début de la transmission, soit après une pause) jusqu'au début de la transmission des canaux de commande. Dans une exécution la transmission d'un canal de données peut être retardée jusqu'à ce que la puissance ait été réglée au niveau adéquat. Ces techniques pallient: au risque de corruption des données au début de la transmission sur le canal de données si le niveau de puissance est trop bas, ou au risque de création de parasites supplémentaires si le niveau de puissance est trop élevé.
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