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1. WO2018063065 - QUASI CO-LOCATION FOR BEAMFORMING

Publication Number WO/2018/063065
Publication Date 05.04.2018
International Application No. PCT/SE2017/050939
International Filing Date 27.09.2017
IPC
H04B 7/06 2006.1
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
H04L 5/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
H04L 25/02 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
CPC
H04B 17/327
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
17Monitoring; Testing
30of propagation channels
309Measuring or estimating channel quality parameters
318Received signal strength
327Received signal code power [RSCP]
H04B 7/0617
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
0613using simultaneous transmission
0615of weighted versions of same signal
0617for beam forming
H04B 7/0854
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
08at the receiving station
0837using pre-detection combining
0842Weighted combining
0848Joint weighting
0854using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
H04L 25/0204
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
0202Channel estimation
0204of multiple channels
H04L 25/0228
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
0202Channel estimation
0224using sounding signals
0228with direct estimation from sounding signals
H04L 5/0023
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
5Arrangements affording multiple use of the transmission path
0001Arrangements for dividing the transmission path
0014Three-dimensional division
0023Time-frequency-space
Applicants
  • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) [SE]/[SE]
Inventors
  • BERGMAN, Svante
  • SORRENTINO, Stefano
  • JÖNGREN, George
  • FRENNE, Mattias
Agents
  • BOU FAICAL, Roger
Priority Data
62/402,51630.09.2016US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) QUASI CO-LOCATION FOR BEAMFORMING
(FR) QUASI COLOCALISATION POUR FORMATION DE FAISCEAU
Abstract
(EN) A method implemented in a user equipment (UE) includes receiving a first reference signal (RS) from a first transmit antenna port and performing channel estimation based on the first RS. The method also includes obtaining an indication that the first RS and a second RS share a spatial property and receiving the second RS from a second transmit antenna port. The method further includes inferring the shared spatial property for the second RS based on the indication and performing channel estimation based on the second RS using the inferred spatial property.
(FR) L'invention concerne un procédé mis en œuvre dans un équipement utilisateur (UE) qui consiste à recevoir un premier signal de référence (RS) d'un premier port d'antenne d'émission et à réaliser une estimation de canal sur la base du premier RS. Le procédé consiste également à obtenir une indication du fait que le premier RS et un second RS partagent une propriété spatiale et à recevoir le second RS à partir d'un second port d'antenne d'émission. Le procédé consiste en outre à déduire la propriété spatiale partagée pour le second RS sur la base de l'indication et à réaliser une estimation de canal sur la base du second RS à l'aide de la propriété spatiale déduite.
Related patent documents
ZA2019/00965This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
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