AR090081A1 - Nodo y metodo para generar la conformacion en haz de las comunicaciones de enlace descendente - Google Patents

Nodo y metodo para generar la conformacion en haz de las comunicaciones de enlace descendente

Info

Publication number
AR090081A1
AR090081A1 ARP130100495A AR090081A1 AR 090081 A1 AR090081 A1 AR 090081A1 AR P130100495 A ARP130100495 A AR P130100495A AR 090081 A1 AR090081 A1 AR 090081A1
Authority
AR
Argentina
Prior art keywords
generate
enodeb
conformation
node
face
Prior art date
Application number
Other languages
English (en)
Inventor
Hammarwall David
Wernersson Niklas
Bergman Svante
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of AR090081A1 publication Critical patent/AR090081A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]

Abstract

Un eNodoB y método en él para generar comunicaciones de enlace descendente en un sistema de múltiples antenas. El método comprende transmitir, a una cantidad de equipos de usuario, una pluralidad de señales de referencia, donde cada señal está conformada en haz en una dirección distinta dentro de al menos un dominio correlacionado (por ejemplo, elevación y/o acimut). El eNodoB recibe al menos un informe CSI de un equipo de usuario específico y determina una señal de referencia primaria en base a, por ejemplo, el al menos un informe CSI. El eNodoB de allí en más puede generar señales de comunicación de enlace descendente para el o los elementos de antena y/o los subelementos del sistema de múltiples antenas. Las señales de comunicación de enlace descendente se conforman en haz en una dirección de transmisión que se alinea más estrechamente con una dirección de conformación de haz de la al menos una señal de referencia principal, en comparación con cualquier otra dirección de conformación de haz de las señales de referencia.
ARP130100495 2012-03-15 2013-02-18 Nodo y metodo para generar la conformacion en haz de las comunicaciones de enlace descendente AR090081A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201261611149P 2012-03-15 2012-03-15

Publications (1)

Publication Number Publication Date
AR090081A1 true AR090081A1 (es) 2014-10-15

Family

ID=49161563

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP130100495 AR090081A1 (es) 2012-03-15 2013-02-18 Nodo y metodo para generar la conformacion en haz de las comunicaciones de enlace descendente

Country Status (4)

Country Link
EP (1) EP2826162B1 (es)
AR (1) AR090081A1 (es)
TW (1) TW201338451A (es)
WO (1) WO2013137794A1 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101832633B1 (ko) * 2013-09-30 2018-02-26 후지쯔 가부시끼가이샤 정보 피드백 방법, 코드북 결정 방법, ue 및 기지국
CN105517108B (zh) 2014-09-26 2019-03-22 电信科学技术研究院 一种小区接入方法及装置
WO2017014683A1 (en) * 2015-07-22 2017-01-26 Telefonaktiebolaget Lm Ericsson (Publ) Reference signaling for beamforming networks
US9967081B2 (en) * 2015-12-04 2018-05-08 Hon Hai Precision Industry Co., Ltd. System and method for beamforming wth automatic amplitude and phase error calibration
US10069555B2 (en) * 2016-04-13 2018-09-04 Qualcomm Incorporated System and method for beam management
US11191061B2 (en) * 2016-04-19 2021-11-30 Qualcomm Incorporated Beam reference signal based narrowband channel measurement and CQI reporting
US10342001B2 (en) * 2016-05-20 2019-07-02 National Taiwan University Base station and user equipment having on-demand signalling mechanism in directional wireless communication system
WO2019126975A1 (zh) 2017-12-26 2019-07-04 Oppo广东移动通信有限公司 一种传输方向的确定方法及装置、计算机存储介质
US11374640B2 (en) 2018-02-01 2022-06-28 Telefonaktiebolaget Lm Ericsson (Publ) Selecting a transmission rank in a multiple beam antenna system
CN113923678B (zh) * 2020-07-10 2023-09-01 广州海格通信集团股份有限公司 信号处理方法、装置、计算机设备及存储介质
EP4315931A1 (en) * 2021-03-30 2024-02-07 Telefonaktiebolaget LM Ericsson (publ) Methods and apparatus for identifying a tilt angle for a wireless device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006026890A1 (en) * 2004-09-06 2006-03-16 Huawei Technologies Co., Ltd. Method for calculating a downlink beamforming weight vector in a wireless communication system
US8315657B2 (en) * 2008-09-22 2012-11-20 Futurewei Technologies, Inc. System and method for enabling coordinated beam switching and scheduling
AU2010264227B2 (en) * 2009-06-23 2015-11-12 Koninklijke Philips Electronics N.V. Antenna configuration for co-operative beamforming

Also Published As

Publication number Publication date
WO2013137794A1 (en) 2013-09-19
EP2826162A1 (en) 2015-01-21
TW201338451A (zh) 2013-09-16
EP2826162B1 (en) 2017-03-01

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