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1. WO2020069333 - METHOD AND SYSTEM FOR MANAGING INTERFERENCE IN MULTI TRP SYSTEMS

Publication Number WO/2020/069333
Publication Date 02.04.2020
International Application No. PCT/US2019/053485
International Filing Date 27.09.2019
IPC
H04B 7/024 2017.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
022Site diversity; Macro-diversity
024Co-operative use of antennas at several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output systems
H04B 7/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
H04B 7/0417 2017.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
0413MIMO systems
0417Feedback systems
CPC
H04B 7/024
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
022Site diversity; Macro-diversity
024Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
H04B 7/0421
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
0413MIMO systems
0417Feedback systems
0421utilizing implicit feedback, e.g. steered pilot signals
H04B 7/0695
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
06at the transmitting station
0686Hybrid systems, i.e. switching and simultaneous transmission
0695using beam selection
Applicants
  • SONY CORPORATION [JP]/[JP]
  • SONY MOBILE COMMUNICATIONS (USA) INC. [US]/[US] (KN)
Inventors
  • RUSEK, Fredrik
  • ZANDER, Olof
  • HO, Zuleita
  • BENGTSSON, Erik
  • ZHAO, Kun
  • PALENIUS, Torgny
Agents
  • KOWALSKI, Ross
Priority Data
1830273-728.09.2018SE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND SYSTEM FOR MANAGING INTERFERENCE IN MULTI TRP SYSTEMS
(FR) PROCÉDÉ ET SYSTÈME DE GESTION DES INTERFÉRENCES DANS DES SYSTÈMES MULTI TRP
Abstract
(EN)
Systems and methods for managing interference in a communication network include transmitting a first downlink signal (50) from a first transmit/receive point (TRP) (46) to an electronic device (14) using a beam (62). The electronic device (14) can also receive a second downlink signal (52) from a second TRP (48), where a portion (54) of the first downlink signal (50) from the first TRP (46) interferes with the second downlink signal (52). The first TRP (46) then receives a series of uplink pilot signals (66, 68) from the electronic device (14). Using the received uplink pilot signals (66, 68), the first TRP (46) can then estimate the angle of departure (AoD) for the intended signal (first downlink signal (50)), and the AoD for the interference signal (54). The first TRP (46) can then reconfigure the beam (62) used to transmit the first downlink signal (50) based on the estimated AoDs for the intended signal and interference signal to manage the interference effect that the first leakage signal (54) has on the second downlink signal (52).
(FR)
L'invention concerne des systèmes et procédés de gestion des interférences dans un réseau de communication comprenant la transmission d'un premier signal de liaison descendante (50) d'un premier point d'émission/réception (TRP) (46) à un dispositif électronique (14) à l'aide d'un faisceau (62). Le dispositif électronique (14) peut également recevoir un second signal de liaison descendante (52) à partir d'un second TRP (48), une partie (54) du premier signal de liaison descendante (50) provenant du premier TRP (46) interférant avec le second signal de liaison descendante (52). Le premier TRP (46) reçoit ensuite une série de signaux pilotes de liaison montante (66, 68) provenant du dispositif électronique (14). En utilisant les signaux pilotes de liaison montante reçus (66, 68), le premier TRP (46) peut ensuite estimer l'angle de départ (AoD) pour le signal voulu (premier signal de liaison descendante (50)), et l'AoD pour le signal d'interférence (54). Le premier TRP (46) peut ensuite reconfigurer le faisceau (62) utilisé pour transmettre le premier signal de liaison descendante (50) sur la base des AoDs estimés pour le signal voulu et le signal d'interférence pour gérer l'effet d'interférence que le premier signal de fuite (54) provoque sur le second signal de liaison descendante (52).
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