IN2014KN01729A - - Google Patents

Info

Publication number
IN2014KN01729A
IN2014KN01729A IN1729KON2014A IN2014KN01729A IN 2014KN01729 A IN2014KN01729 A IN 2014KN01729A IN 1729KON2014 A IN1729KON2014 A IN 1729KON2014A IN 2014KN01729 A IN2014KN01729 A IN 2014KN01729A
Authority
IN
India
Prior art keywords
downlink communications
base station
antenna arrays
sector antenna
mimo
Prior art date
Application number
Other languages
English (en)
Inventor
Sairamesh Nammi
Wrycza Peter Von
Qingyu Miao
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 IN2014KN01729A publication Critical patent/IN2014KN01729A/en

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
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
    • 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
    • H04B7/0491—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more sectors, i.e. sector diversity
    • H04B7/0495—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more sectors, i.e. sector diversity using overlapping sectors in the same base station to implement MIMO for antennas
    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
    • 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
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
IN1729KON2014 2012-01-27 2013-01-15 IN2014KN01729A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261591307P 2012-01-27 2012-01-27
PCT/SE2013/050022 WO2013112097A1 (fr) 2012-01-27 2013-01-15 Procédés permettant de sélectionner des vecteurs de précodage pour les communications mimo (entrée multiple sortie multiple) multipoints, et terminaux sans fil et nœuds de réseau radio connexes

Publications (1)

Publication Number Publication Date
IN2014KN01729A true IN2014KN01729A (fr) 2015-10-23

Family

ID=47678968

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1729KON2014 IN2014KN01729A (fr) 2012-01-27 2013-01-15

Country Status (4)

Country Link
US (3) US9065494B2 (fr)
EP (1) EP2807760A1 (fr)
IN (1) IN2014KN01729A (fr)
WO (1) WO2013112097A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015058210A1 (fr) * 2013-10-20 2015-04-23 Arbinder Singh Pabla Système sans fil à ressources radio et d'antenne configurables
EP2905934B1 (fr) * 2014-02-07 2018-05-30 Vodafone GmbH Système de télécommunication mobile utilisant un déquantificateur d'informations souples
WO2015123838A1 (fr) * 2014-02-20 2015-08-27 华为技术有限公司 Procédé de transmission de données et dispositif d'émission
EP3117530B1 (fr) * 2014-03-14 2020-06-24 Telefonaktiebolaget LM Ericsson (publ) Technique de détermination de précodeur
WO2015169360A1 (fr) * 2014-05-08 2015-11-12 Huawei Technologies Co.,Ltd Dispositif de réseau pour décodage commun et procédé afférent
US10141993B2 (en) * 2016-06-16 2018-11-27 Intel Corporation Modular antenna array beam forming
US10440693B2 (en) 2016-11-04 2019-10-08 At&T Intellectual Property I, L.P. Asynchronous multi-point transmission schemes
US11191126B2 (en) 2017-06-05 2021-11-30 Everest Networks, Inc. Antenna systems for multi-radio communications
US11050470B1 (en) 2018-04-25 2021-06-29 Everest Networks, Inc. Radio using spatial streams expansion with directional antennas
US10879627B1 (en) 2018-04-25 2020-12-29 Everest Networks, Inc. Power recycling and output decoupling selectable RF signal divider and combiner
US11005194B1 (en) 2018-04-25 2021-05-11 Everest Networks, Inc. Radio services providing with multi-radio wireless network devices with multi-segment multi-port antenna system
US11089595B1 (en) 2018-04-26 2021-08-10 Everest Networks, Inc. Interface matrix arrangement for multi-beam, multi-port antenna
US20250113375A1 (en) * 2023-09-28 2025-04-03 Qualcomm Incorporated Timing-information-based random access channel configurations

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8073068B2 (en) * 2005-08-22 2011-12-06 Qualcomm Incorporated Selective virtual antenna transmission
CN102017583B (zh) * 2008-04-29 2014-09-10 苹果公司 多天线波束形成蜂窝网络的改进的性能
EP2194740A1 (fr) * 2008-12-03 2010-06-09 Nokia Siemens Network Oy Procédé et dispositif pour le traitement de données dans un réseau de communication mobile
US8848818B2 (en) * 2009-08-19 2014-09-30 Lg Electronics Inc. Apparatus and method for generating codebook in wireless communication system
US8634779B2 (en) * 2009-10-05 2014-01-21 Koninklijke Philips N.V. Method for signalling a precoding in a cooperative beamforming transmission mode
TWI562554B (en) * 2009-12-30 2016-12-11 Sony Corp Communications system and device using beamforming
CN102244566B (zh) * 2010-05-11 2014-03-12 中兴通讯股份有限公司 用于多输入多输出系统的下行传输方法和基站
JP5596498B2 (ja) * 2010-11-02 2014-09-24 シャープ株式会社 基地局装置、移動局装置及びそれらを用いた無線通信システム
WO2012095188A1 (fr) 2011-01-14 2012-07-19 Telefonaktiebolaget L M Ericsson (Publ) Mise en correspondance de mot de code groupé-couche pour mimo à signalisation réduite
US20130157710A1 (en) 2011-12-16 2013-06-20 Telefonaktiebolaget LM Ericsson(pUb) Methods Providing Multipoint Communications Based on Sector Loads And Related Network Nodes

Also Published As

Publication number Publication date
WO2013112097A1 (fr) 2013-08-01
US20140161203A1 (en) 2014-06-12
US20160173173A1 (en) 2016-06-16
US9692493B2 (en) 2017-06-27
US9065494B2 (en) 2015-06-23
US9300369B2 (en) 2016-03-29
EP2807760A1 (fr) 2014-12-03
US20150256235A1 (en) 2015-09-10

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