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IN2012DN01129A - - Google Patents

Info

Publication number
IN2012DN01129A
IN2012DN01129A IN1129DEN2012A IN2012DN01129A IN 2012DN01129 A IN2012DN01129 A IN 2012DN01129A IN 1129DEN2012 A IN1129DEN2012 A IN 1129DEN2012A IN 2012DN01129 A IN2012DN01129 A IN 2012DN01129A
Authority
IN
India
Prior art keywords
inputs
outputs
precoder
output
input
Prior art date
Application number
Inventor
Markus Ringstrom
Bo Goransson
Fredrik Ovesjo
Henrik Asplund
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 IN2012DN01129A publication Critical patent/IN2012DN01129A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • 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
    • H04B7/0417—Feedback 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
    • H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
    • H04B7/0469—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking special antenna structures, e.g. cross polarized antennas 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
    • H04B7/0621—Feedback content
    • H04B7/0634—Antenna weights or vector/matrix coefficients
    • 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
    • H04B7/10—Polarisation diversity; Directional diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

The invention relates to the technical field of radio communications, and in particular to an antenna device for a radio base station, and a method for precoding data in a Multiple-Input Multiple-Output (MIMO) system. Embodiments of the invention disclose a secondary precoder 24 in series with a multiple-input multiple-output precoder 22. The secondary precoder 24 has a plurality of inputs 34, 36 and a plurality of outputs 38, 40. The second plurality of inputs being in communication with each plurality of outputs 38, 40 such that one or more signals input to a respective one or more of the second plurality of inputs 34, 36 provides a substantially equal power of signals at the second plurality of outputs 38,40.
IN1129DEN2012 2009-08-14 2009-12-15 IN2012DN01129A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US23397209P 2009-08-14 2009-08-14
PCT/SE2009/051426 WO2011019310A1 (en) 2009-08-14 2009-12-15 Antenna device

Publications (1)

Publication Number Publication Date
IN2012DN01129A true IN2012DN01129A (en) 2015-04-10

Family

ID=43586311

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1129DEN2012 IN2012DN01129A (en) 2009-08-14 2009-12-15

Country Status (9)

Country Link
US (1) US8665994B2 (en)
EP (2) EP3197066A1 (en)
DK (1) DK2465208T3 (en)
ES (1) ES2632398T3 (en)
HU (1) HUE035293T2 (en)
IN (1) IN2012DN01129A (en)
PL (1) PL2465208T3 (en)
PT (1) PT2465208T (en)
WO (1) WO2011019310A1 (en)

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US9136932B2 (en) * 2009-11-09 2015-09-15 Telefonaktiebolaget L M Ecrisson (publ) Method and arrangement for tuning polarizations for orthogonally polarized antennas
EP2619922B1 (en) * 2010-09-23 2016-08-10 Optis Cellular Technology, LLC Antenna device and method in a mimo system
ES2663612T3 (en) * 2010-10-04 2018-04-16 Vodafone España, S.A.U. Method and system for enhanced transmission in mobile communication networks
US9270359B2 (en) 2010-10-05 2016-02-23 Telefonaktiebolaget L M Ericsson (Publ) Method and arrangement for polarization control in a communication system
WO2012050364A2 (en) * 2010-10-12 2012-04-19 엘지전자 주식회사 Method and device for signal transmission in a multi-node system
US8873678B2 (en) * 2010-11-04 2014-10-28 Intel Mobile Communications GmbH Method for processing data
WO2012115583A1 (en) * 2011-02-25 2012-08-30 Telefonaktiebolaget L M Ericsson (Publ) Receiver adaptation based on acquired precoder knowledge
US8675762B2 (en) * 2011-05-02 2014-03-18 Alcatel Lucent Method of transforming pre-coded signals for multiple-in-multiple-out wireless communication
EP2715868B1 (en) 2011-06-01 2018-12-26 Telefonaktiebolaget LM Ericsson (publ) A signal combiner, method and computer program product
US8929473B2 (en) * 2011-07-28 2015-01-06 Samsung Electronics Co., Ltd. Combining baseband processing and radio frequency beam steering in wireless communication systems
EP2720384B1 (en) * 2011-10-17 2017-08-23 Huawei Technologies Co., Ltd. Method, device and system for implementing microwave multiple-input multiple-output
WO2013144361A1 (en) * 2012-03-30 2013-10-03 Nokia Siemens Networks Oy Feedback methodology for per-user elevation mimo
US8619894B1 (en) * 2012-08-15 2013-12-31 Nokia Siemens Networks Oy Methods and apparatus for beamforming
US10050686B2 (en) 2012-08-31 2018-08-14 Nokia Solutions And Networks Oy Methods and apparatus for beamforming
US9628219B2 (en) * 2015-07-31 2017-04-18 Huawei Technologies Co., Ltd. Apparatus and method for transmitting and receiving polarized signals
US9813269B1 (en) * 2016-10-13 2017-11-07 Movandi Corporation Wireless transceiver having a phased array antenna panel for transmitting circularly-polarized signals with modulated angular speed
JP2023525872A (en) * 2020-05-13 2023-06-19 ラッセル１０９８４・（プロプライエタリー）・リミテッド Apparatus and method for underwater sampling

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070041457A1 (en) * 2005-08-22 2007-02-22 Tamer Kadous Method and apparatus for providing antenna diversity in a wireless communication system
EP1966908A4 (en) * 2005-12-08 2011-10-05 Ericsson Telefon Ab L M A wireless communication mimo system with repeaters
US7697626B2 (en) 2006-01-13 2010-04-13 Interdigital Technology Corporation Method and apparatus for selecting a beam combination in a MIMO wireless communication system
EP2062375A4 (en) * 2006-09-14 2014-08-13 Ericsson Telefon Ab L M Method and arrangements for load balancing of power amplifiers
US8107544B2 (en) * 2007-05-16 2012-01-31 Motorola Mobility, Inc. Method and apparatus for feedback in closed loop transmitting
HUE037533T2 (en) * 2007-10-08 2018-09-28 Ericsson Telefon Ab L M Procedures and arrangements for signaling control information in a communication system
US8340235B2 (en) * 2008-09-25 2012-12-25 Research In Motion Limited X-MIMO systems with multi-transmitters and multi-receivers
US8873533B2 (en) * 2008-11-12 2014-10-28 Telefonaktiebolaget Lm Ericsson (Publ) Method and a transmitter in a wireless communication network
US8750205B2 (en) * 2009-08-07 2014-06-10 Texas Instruments Incorporated Multiple rank CQI feedback for cellular networks
WO2011043497A1 (en) * 2009-10-06 2011-04-14 Pantech Co., Ltd. Precoding and feedback channel information in wireless communication system
US8112049B2 (en) * 2009-12-17 2012-02-07 Telefonaktiebolaget Lm Ericsson (Publ) Channel quality handling for precoder override
CN102823154B (en) * 2010-04-07 2016-07-06 瑞典爱立信有限公司 The apparatus and method of the parametrization codebook subset used together with transmitting with precoding MIMO
CN103004103B (en) * 2010-04-09 2016-04-27 交互数字专利控股公司 Power control method and apparatus for closed-loop transmit diversity and MIMO in uplink
US9106289B2 (en) * 2010-10-19 2015-08-11 Telefonaktiebolaget L M Ericsson (Publ) Antenna device and method for precoding data in a multiple-input multiple-output system
US9007888B2 (en) * 2010-11-08 2015-04-14 Qualcomm Incorporated System and method for uplink multiple input multiple output transmission

Also Published As

Publication number Publication date
ES2632398T3 (en) 2017-09-12
US8665994B2 (en) 2014-03-04
DK2465208T3 (en) 2017-07-17
US20120140801A1 (en) 2012-06-07
EP2465208B1 (en) 2017-04-19
PT2465208T (en) 2017-07-24
EP3197066A1 (en) 2017-07-26
WO2011019310A1 (en) 2011-02-17
EP2465208A1 (en) 2012-06-20
EP2465208A4 (en) 2015-05-13
PL2465208T3 (en) 2017-10-31
HUE035293T2 (en) 2018-05-02

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