IN2014KN01764A - - Google Patents

Info

Publication number
IN2014KN01764A
IN2014KN01764A IN1764KON2014A IN2014KN01764A IN 2014KN01764 A IN2014KN01764 A IN 2014KN01764A IN 1764KON2014 A IN1764KON2014 A IN 1764KON2014A IN 2014KN01764 A IN2014KN01764 A IN 2014KN01764A
Authority
IN
India
Prior art keywords
node
transmitting
pilot signal
receiving
transmitting node
Prior art date
Application number
Inventor
Sairamesh Nammi
Thomas Chapman
Bo Göransson
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 IN2014KN01764A publication Critical patent/IN2014KN01764A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • 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
    • 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
    • H04B7/0617—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
    • H04B7/0684—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 using different training sequences per antenna
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

Multiple antennas employed at transmitting and receiving nodes (410 420) can significantly increase a MIMO system capacity especially when channel knowledge of link(s) between the transmitting and receiving nodes (410 420) is available at the transmitting node (410). Channel knowledge may be acquired through feedback provided by the receiving node (420) based on a plurality of common pilots transmitted by the transmitting node (410). The common pilots may include legacy and non legacy pilots. If the feedback indicates that data demodulation at the receiving node (420) can be enhanced the transmitting node (410) may also transmit demodulation pilot signal(s) which may coincide with the transmission of data. The receiving node (420) can use the demodulation pilot signal(s) alone or with the common pilot signal(s) to demodulate data received from the transmitting node (420). The transmitting node (410) may notify the receiving node (420) to monitor for the demodulation pilot signal(s) through higher layer signaling and/or scheduling orders over a control channel.
IN1764KON2014 2012-01-30 2013-01-24 IN2014KN01764A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261592151P 2012-01-30 2012-01-30
PCT/SE2013/050054 WO2013115708A2 (en) 2012-01-30 2013-01-24 Method, apparatus, and system for using common and demodulation pilot signals in multi-antenna wireless communications

Publications (1)

Publication Number Publication Date
IN2014KN01764A true IN2014KN01764A (en) 2015-10-23

Family

ID=47846114

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1764KON2014 IN2014KN01764A (en) 2012-01-30 2013-01-24

Country Status (5)

Country Link
US (3) US8891646B2 (en)
EP (1) EP2742641B1 (en)
JP (1) JP6093378B2 (en)
IN (1) IN2014KN01764A (en)
WO (1) WO2013115708A2 (en)

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WO2013115708A2 (en) * 2012-01-30 2013-08-08 Telefonaktiebolaget L M Ericsson (Publ) Method, apparatus, and system for using common and demodulation pilot signals in multi-antenna wireless communications
CN102655486B (en) * 2012-05-10 2014-12-31 华为技术有限公司 Pilot signal transmission method and channel estimation method, device and system
CN104380615B (en) * 2012-05-11 2017-09-22 瑞典爱立信有限公司 Method and apparatus for transmitting demodulation pilots in a multi-antenna wireless communication system
US8885590B2 (en) * 2012-05-18 2014-11-11 Futurewei Technologies, Inc. Systems and methods for scheduling multiple-input and multiple-output (MIMO) high-speed downlink packet access (HSDPA) pilot channels
US9674002B2 (en) 2012-10-09 2017-06-06 Telefonaktiebolaget Lm Ericsson (Publ) Channel estimation in a multi-antenna wireless communications system
WO2014088271A1 (en) * 2012-12-09 2014-06-12 엘지전자 주식회사 Method and device for transmitting and receiving signal in multi-cell cooperative communication system
US9166663B2 (en) * 2012-12-14 2015-10-20 Futurewei Technologies, Inc. System and method for open-loop MIMO communications in a SCMA communications system
US9509383B2 (en) * 2013-04-29 2016-11-29 Lg Electronics Inc. Method and apparatus for transmitting channel state information in wireless communication system
CN104601281A (en) * 2014-12-31 2015-05-06 北京智谷睿拓技术服务有限公司 Transmission control method and transmission control device
EP3285407B1 (en) 2016-08-16 2019-05-15 Sony Mobile Communications, Inc Base station and operating method thereof
US10772024B2 (en) 2018-01-12 2020-09-08 At&T Intellectual Property I, L.P. Adaptive multiple antenna transmission scheme for uplink data transmission in wireless communication systems
US11109432B2 (en) * 2019-02-15 2021-08-31 At&T Intellectual Property I, L.P. Location based coreset configuration for transmitting the physical downlink control channel in 5G wireless communication systems
EP4005169A4 (en) * 2019-07-29 2022-08-03 Telefonaktiebolaget LM Ericsson (publ) Method and apparatus for phase-aided adaptive modulation

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CN101313548B (en) * 2005-09-27 2013-06-05 诺基亚公司 Method and device for built-in pilot transmissions in multicarrier system
WO2007108080A1 (en) * 2006-03-20 2007-09-27 Fujitsu Limited Base station and its mimo-ofdm communication method
EP2082492A4 (en) * 2006-11-13 2015-12-16 Ericsson Telefon Ab L M METHOD AND ARRANGEMENT FOR CONTROL SIGNALING BASED ON PILOT MODEL IN SYSTEMS
US8913695B2 (en) * 2007-03-12 2014-12-16 Qualcomm Incorporated Hybrid pilot configuration
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US20090310707A1 (en) * 2008-06-17 2009-12-17 Jung-Fu Cheng Transmitter and method for transmitting soft pilot symbols in a digital communication system
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Also Published As

Publication number Publication date
JP2015513341A (en) 2015-05-07
US8891646B2 (en) 2014-11-18
US20150270937A1 (en) 2015-09-24
WO2013115708A2 (en) 2013-08-08
US20150003571A1 (en) 2015-01-01
JP6093378B2 (en) 2017-03-08
EP2742641B1 (en) 2016-01-20
US9077417B2 (en) 2015-07-07
US9374210B2 (en) 2016-06-21
WO2013115708A3 (en) 2013-12-19
EP2742641A2 (en) 2014-06-18
US20140079147A1 (en) 2014-03-20

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