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]
IN1729KON2014 2012-01-27 2013-01-15 IN2014KN01729A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261591307P 2012-01-27 2012-01-27
PCT/SE2013/050022 WO2013112097A1 (en) 2012-01-27 2013-01-15 Methods for selecting precoding vectors for multi-point mimo (multiple-input-multiple-output) communications and related wireless terminals and radio network nodes

Publications (1)

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

Family

ID=47678968

Family Applications (1)

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

Country Status (4)

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

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CA2935037A1 (en) * 2013-10-20 2015-04-23 Arbinder Singh Pabla Wireless system with configurable radio and antenna resources
EP2905934B1 (en) * 2014-02-07 2018-05-30 Vodafone GmbH Mobile telecommunication system using soft-information dequantizer
CN105308894B (zh) * 2014-02-20 2018-11-20 华为技术有限公司 一种数据传输方法，及发射装置
WO2015135596A1 (en) * 2014-03-14 2015-09-17 Telefonaktiebolaget L M Ericsson (Publ) Technique for precoder determination
WO2015169360A1 (en) * 2014-05-08 2015-11-12 Huawei Technologies Co.,Ltd Network device for joint decoding and method thereof
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
WO2018226764A1 (en) 2017-06-05 2018-12-13 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

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Publication number Priority date Publication date Assignee Title
US8073068B2 (en) * 2005-08-22 2011-12-06 Qualcomm Incorporated Selective virtual antenna transmission
JP5792058B2 (ja) 2008-04-29 2015-10-07 アップル インコーポレイテッド 複数アンテナ・ビーム形成セルラ・ネットワークに関する改善された性能
EP2194740A1 (en) * 2008-12-03 2010-06-09 Nokia Siemens Network Oy Method and device for data processing in a mobile communication network
US8848818B2 (en) * 2009-08-19 2014-09-30 Lg Electronics Inc. Apparatus and method for generating codebook in wireless communication system
JP5675824B2 (ja) * 2009-10-05 2015-02-25 コーニンクレッカ フィリップス エヌ ヴェ 協調ビーム成形送信モードにおけるプリコーディングを通知するための方法
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
RU2013137836A (ru) 2011-01-14 2015-02-20 Телефонактиеболагет Л М Эрикссон (Пабл) Сгруппированная кодовая комбинация для отображения на уровни для mimo с уменьшенной сигнализацией
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
US9692493B2 (en) 2017-06-27
US20160173173A1 (en) 2016-06-16
US9065494B2 (en) 2015-06-23
US20150256235A1 (en) 2015-09-10
EP2807760A1 (en) 2014-12-03
US20140161203A1 (en) 2014-06-12
WO2013112097A1 (en) 2013-08-01
US9300369B2 (en) 2016-03-29

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