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1. WO2011001607 - INTERFERENCE MANAGEMENT METHOD BETWEEN COGNITIVE PILOT CHANNEL BASE STATIONS USING POWER CONTROL

Publication Number WO/2011/001607
Publication Date 06.01.2011
International Application No. PCT/JP2010/003859
International Filing Date 10.06.2010
IPC
H04W 52/32 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management
04Transmission power control
30using constraints in the total amount of available transmission power
32TPC of broadcast or control channels
H04W 52/24 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management
04Transmission power control
18TPC being performed according to specific parameters
24using SIR or other wireless path parameters
H04W 52/36 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management
04Transmission power control
30using constraints in the total amount of available transmission power
36with a discrete range or set of values, e.g. step size, ramping or offsets
CPC
H04W 52/243
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
24using SIR [Signal to Interference Ratio] or other wireless path parameters
243taking into account interferences
H04W 52/325
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
30using constraints in the total amount of available transmission power
32TPC of broadcast or control channels
325Power control of control or pilot channels
H04W 52/367
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
30using constraints in the total amount of available transmission power
36with a discrete range or set of values, e.g. step size, ramping or offsets
367Power values between minimum and maximum limits, e.g. dynamic range
H04W 52/386
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
38TPC being performed in particular situations
386centralized, e.g. when the radio network controller or equivalent takes part in the power control
Applicants
  • NEC Corporation [JP]/[JP] (AllExceptUS)
  • MOUHOUCHE, Belkacem [FR]/[FR] (UsOnly)
Inventors
  • MOUHOUCHE, Belkacem
Agents
  • IWAKABE, Fuyuki
Priority Data
09164186.030.06.2009EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) INTERFERENCE MANAGEMENT METHOD BETWEEN COGNITIVE PILOT CHANNEL BASE STATIONS USING POWER CONTROL
(FR) PROCÉDÉ DE GESTION DES INTERFÉRENCES ENTRE DES STATIONS DE BASE À CANAL PILOTE COGNITIF AU MOYEN D'UNE COMMANDE DE PUISSANCE
Abstract
(EN)
The invention relates to a method to avoid interference between signals transmitted by at least two different base stations over cognitive Pilot Channels (CPC) to UEs located in contiguous cells of wireless telecommunication network, each cell comprising a plurality of meshes, the transmission power of said signals being adjustable to different levels between a minimum level and a maximum level. The method according to the invention comprises a step consisting of synchronizing said base stations so that they do not transmit signals with their respective maximum transmission power levels simultaneously.
(FR)
L'invention concerne un procédé destiné à éviter les interférences entre des signaux émis par au moins deux stations de base différentes sur des canaux pilotes cognitifs vers des équipements d'utilisateurs situés dans des cellules contiguës d'un réseau de télécommunication sans fil, chaque cellule comprenant une pluralité de mailles et la puissance d'émission desdits signaux pouvant être réglée à différents niveaux entre un niveau minimal et un niveau maximal. Le procédé de l'invention comprend une étape consistant à synchroniser lesdites stations de base afin qu'elles n'émettent pas de signaux simultanément avec leurs niveaux respectifs de puissance maximale d'émission.
Also published as
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