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1. (WO2017060619) METHOD FOR CONTROLLING POWER DISTRIBUTED BETWEEN K EMITTERS AND CORRESPONDING SYSTEM
PCT Biblio. Data
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Pub. No.:
WO/2017/060619
International Application No.:
PCT/FR2016/052558
Publication Date:
13.04.2017
International Filing Date:
05.10.2016
IPC:
H04W 52/24
(2009.01),
H04B 7/04
(2017.01)
H
ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
52
Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04
TPC [Transmission power control]
18
TPC being performed according to specific parameters
24
using SIR [Signal to Interference Ratio] or other wireless path parameters
H
ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
02
Diversity systems
04
using a plurality of spaced independent aerials
Applicants:
ORANGE
[FR/FR]; 78 rue Olivier de Serres 75015 Paris (FR)
Inventors:
LASAULCE, Samson
; (FR).
VISOZ, Raphaël
; (FR)
Agent:
ORANGE IMT/OLPS/IPL/PATENTS
; JEUNE Pascale Orange Gardens 44 avenue de la République - CS 50010 92326 Chatillon Cedex (FR)
Priority Data:
1559473
05.10.2015
FR
Title
(EN)
METHOD FOR CONTROLLING POWER DISTRIBUTED BETWEEN K EMITTERS AND CORRESPONDING SYSTEM
(FR)
PROCÉDÉ DE CONTRÔLE DE PUISSANCE DISTRIBUÉ ENTRE K ÉMETTEURS ET SYSTÈME CORRESPONDANT
Abstract:
(EN)
The present invention relates to a method for controlling power distributed between K emitters each having
T
k
emission antennas intended for communicating respectively with K receivers via communication links described between the emitter j and the receiver i by a set of MIMO channel gains
G
ji
, the covariance matrix with dimensions
T
k
x
T
k
of the signal emitted by the emitter
k
being determined by a conditional probability distribution
Q
k
(P
k
ΙY
k
) representing the power control knowing the observation
Y
k
available to the emitter
k
of the channel gains,
k
∈ {1,...,
K
}, each emitter knowing a global metric
W
(
Q
1
,...,
Q
K
). The method: initialises the conditional probability distribution, noted
Q
k
(0)
, and in an iterative manner, with
i
being an iteration index,
i
= 0 to
N
— 1: and so on for each emitter
k
= 1 to
K
; determines the conditional probability distribution
Q
k
(
i
+1)
representing the power control of the emitter
k
as being that which maximises the mean global metric by considering the conditional probability distributions
Q
1
(
i
+1)
,...,
Q
K
-1
(
i
+1)
,
Q
K
+1
(
i
)
,...
Q
K
(
i
)
that represent the power control of the other emitters previously obtained as fixed. The power emitted at a time
t
by the emitter
k
is given by the conditional probability distribution, determined at the end of the iterative process, knowing the performance of the observations
Y
K
at that time
t
.
(FR)
La présente invention se rapporte à un procédé de contrôle de puissance distribué entre K émetteurs ayant chacun
T
k
antennes d'émission destinés à communiquer respectivement avec K récepteurs via des liens de communication décrits entre l'émetteur j et le récepteur i par un ensemble de gains
G
ji
de canaux MIMO. la matrice de covariance de dimension
T
k
x
T
k
du signal émis par l'émetteur
k
étant déterminée par une distribution de probabilité conditionnelle
Q
k
(P
k
ΙY
k
) représentative du contrôle de puissance connaissant l'observation
Y
k
disponible à l'émetteur
k
des gains de canaux,
k
∈ {1,...,
K
}, Chaque émetteur a connaissance d'une métrique globale
W
(
Q
1
,...,
Q
K
). Le procédé : - initialise la distribution de probabilité conditionnelle, notée
Q
k
(0)
et de manière itérative, avec
i
un indice d'itération,
i
= 0 à
N
— 1 : et de manière successive pour chaque émetteur
k
= 1 à
K
: - détermine la distribution de probabilité conditionnelle
Q
k
(
i
+1)
représentative du contrôle de puissance de l'émetteur
k
comme étant celle qui maximise la métrique globale moyenne en considérant les distributions de probabilité conditionnelle
Q
1
(
i
+1)
,...,
Q
K
-1
(
i
+1)
,
Q
K
+1
(
i
)
,...
Q
K
(
i
)
représentatives du contrôle de puissance des autres émetteurs précédemment obtenues comme fixées. La puissance émise à un instant
t
par l'émetteur
k
est donnée par la distribution de probabilité conditionnelle, déterminée à l'issue du processus itératif, connaissant une réalisation des observations
Y
K
à cet instant
t
.
Designated States:
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language:
French (
FR
)
Filing Language:
French (
FR
)