IN2014CN02883A - - Google Patents

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Publication number
IN2014CN02883A
IN2014CN02883A IN2883CHN2014A IN2014CN02883A IN 2014CN02883 A IN2014CN02883 A IN 2014CN02883A IN 2883CHN2014 A IN2883CHN2014 A IN 2883CHN2014A IN 2014CN02883 A IN2014CN02883 A IN 2014CN02883A
Authority
IN
India
Prior art keywords
precoding matrices
serving cell
received
jointly selecting
transmission
Prior art date
Application number
Inventor
Haitong Sun
Danlu Zhang
Sharad Deepak Sambhwani
Rohit Kapoor
Arjun Bharadwaj
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of IN2014CN02883A publication Critical patent/IN2014CN02883A/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
    • H04B7/022—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
    • 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
    • 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
    • H04B7/0634—Antenna weights or vector/matrix coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering

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)

Abstract

An apparatus and a method are disclosed for jointly selecting precoding matrices for a plurality of received transmissions such as those that might be received from a primary serving cell and a secondary serving cell in a multi flow radio access network wherein each of the serving cells is configured to provide a MIMO transmission. Here by jointly selecting the precoding matrices interference from each of the downlink transmissions upon the other transmission can be reduced thus improving overall performance at the receiving entity.
IN2883CHN2014 2011-11-11 2012-11-06 IN2014CN02883A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161558590P 2011-11-11 2011-11-11
US13/558,588 US8737513B2 (en) 2011-11-11 2012-07-26 Apparatus and method for jointly selecting precoding matrices in a MIMO multi-flow system
PCT/US2012/063684 WO2013070587A1 (en) 2011-11-11 2012-11-06 Apparatus and method for jointly selecting precoding matrices in a mimo multi-flow system

Publications (1)

Publication Number Publication Date
IN2014CN02883A true IN2014CN02883A (en) 2015-07-03

Family

ID=48280637

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2883CHN2014 IN2014CN02883A (en) 2011-11-11 2012-11-06

Country Status (6)

Country Link
US (1) US8737513B2 (en)
JP (1) JP5883945B2 (en)
KR (1) KR101582571B1 (en)
CN (1) CN103947132B (en)
IN (1) IN2014CN02883A (en)
WO (1) WO2013070587A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013066258A2 (en) * 2011-11-04 2013-05-10 Telefonaktiebolaget L M Ericsson (Publ) Handling redundant data in a communication system
US8737513B2 (en) * 2011-11-11 2014-05-27 Qualcomm Incorporated Apparatus and method for jointly selecting precoding matrices in a MIMO multi-flow system
WO2014019151A1 (en) * 2012-07-31 2014-02-06 华为技术有限公司 Channel boundary locating method, user terminal and base station
US9538387B2 (en) * 2012-09-28 2017-01-03 Telefonaktiebolaget Lm Ericsson (Publ) Radio resource assignment coordination in superdense networks
US9166663B2 (en) * 2012-12-14 2015-10-20 Futurewei Technologies, Inc. System and method for open-loop MIMO communications in a SCMA communications system
KR102097295B1 (en) * 2013-07-26 2020-04-06 한국전자통신연구원 Apparatus and method for encoding in multiple input multiple output communication systems
US20150092877A1 (en) * 2013-10-02 2015-04-02 Terabit Radios, Inc. High throughput interference cancelling radio transceiver and antenna therefor
US9844077B1 (en) 2015-03-19 2017-12-12 Sprint Spectrum L.P. Secondary component carrier beamforming
WO2017101095A1 (en) 2015-12-18 2017-06-22 华为技术有限公司 Method for feeding back channel quality indicator, user equipment, and network device

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GB0720559D0 (en) * 2007-10-19 2007-11-28 Fujitsu Ltd MIMO wireless communication system
CN101651880B (en) * 2008-08-11 2013-12-25 株式会社Ntt都科摩 Multi-cell coordination sending method
WO2010076949A1 (en) 2008-11-03 2010-07-08 Lg Electronics Inc. Method of transmitting data in multi-cell cooperative wireless communication system
US8401480B2 (en) * 2009-03-04 2013-03-19 Lg Electronics Inc. Method for performing CoMP operation and transmitting feedback information in a wireless communication system
CN101902305B (en) * 2009-05-25 2013-10-30 富士通株式会社 Communication device, communication method and base station
BR112012006379A2 (en) 2009-09-21 2016-04-05 Rockstar Bidco Lp minimal multi-site cooperation in cellular communications network
CN102035626B (en) * 2009-09-30 2013-06-12 华为技术有限公司 Method and device for acquiring pre-coding matrix index
US8565682B1 (en) * 2009-11-03 2013-10-22 Marvell International Ltd. Feedback reduction schemes for coordinated transmission
US8532684B2 (en) * 2010-03-05 2013-09-10 Institute For Information Industry Interference reduction apparatus and interference reduction method thereof
US20120034874A1 (en) 2010-08-06 2012-02-09 Simon Yiu Apparatuses and/or methods of interference mitigation and/or rate improvement via uncoordinated beamforming in heterogeneous networks
KR20120031700A (en) 2010-09-27 2012-04-04 삼성전자주식회사 Method and apparatus of interference aligning using feedforward index in hierarchical cell communication system
US9380592B2 (en) * 2010-12-13 2016-06-28 Nokia Solutions And Networks Oy Mechanism for providing channel feedback in multi-cell communication
CN103548284B (en) * 2011-03-31 2017-07-21 马维尔国际贸易有限公司 Channel feedback for cooperative multipoint transmission
IN2014KN00951A (en) * 2011-10-04 2015-10-09 Ericsson Telefon Ab L M
US8588324B2 (en) * 2011-10-18 2013-11-19 Nokia Siemens Networks Oy Precoding for coordinated multi-point joint transmission
US9591492B2 (en) * 2011-11-08 2017-03-07 Qualcomm Incorporated User equipment, base stations, and methods allowing for handling of colliding channel state information reports
US8711969B2 (en) * 2011-11-11 2014-04-29 Fujitsu Limited Global codebook for coordinated multi-point processing
US8737513B2 (en) * 2011-11-11 2014-05-27 Qualcomm Incorporated Apparatus and method for jointly selecting precoding matrices in a MIMO multi-flow system

Also Published As

Publication number Publication date
CN103947132A (en) 2014-07-23
US8737513B2 (en) 2014-05-27
JP2015503270A (en) 2015-01-29
US20130121431A1 (en) 2013-05-16
CN103947132B (en) 2018-03-27
JP5883945B2 (en) 2016-03-15
KR101582571B1 (en) 2016-01-05
WO2013070587A1 (en) 2013-05-16
KR20140101777A (en) 2014-08-20

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