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TW200746734A - Method and apparatus for pilot multiplexing in a wireless communication system - Google Patents

Method and apparatus for pilot multiplexing in a wireless communication system

Info

Publication number
TW200746734A
TW200746734A TW096102109A TW96102109A TW200746734A TW 200746734 A TW200746734 A TW 200746734A TW 096102109 A TW096102109 A TW 096102109A TW 96102109 A TW96102109 A TW 96102109A TW 200746734 A TW200746734 A TW 200746734A
Authority
TW
Taiwan
Prior art keywords
pilot
transmit antennas
generates multiple
transmitter station
multiplexing
Prior art date
Application number
TW096102109A
Other languages
Chinese (zh)
Other versions
TWI415430B (en
Inventor
Byoung-Hoon Kim
yong-bin Wei
Amir Dabbagh
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 TW200746734A publication Critical patent/TW200746734A/en
Application granted granted Critical
Publication of TWI415430B publication Critical patent/TWI415430B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0055—ZCZ [zero correlation zone]
    • H04J13/0059—CAZAC [constant-amplitude and zero auto-correlation]
    • H04J13/0062—Zadoff-Chu
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • 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

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

Techniques for multiplexing pilots in a wireless transmission are described. In one aspect, a transmitter station generates multiple pilot sequences for multiple transmit antennas, with each pilot sequence comprising pilot symbols sent in the time domain on a different set of subcarriers. The transmitter station further generates multiple pilot transmissions for the transmit antennas based on the pilot sequences. In another aspect, a transmitter station generates multiple pilot sequences for multiple transmit antennas based on frequency-domain code division multiplexing (FD-CDM) of a Chu sequence defined by a transmitter-specific value. The transmitter station further generates multiple pilot transmissions for the transmit antennas based on the pilot sequences. In yet another aspect, a transmitter station generates multiple pilot transmissions for multiple transmit antennas based on a first multiplexing scheme and generates multiple data transmissions based on a second multiplexing scheme that is different from the first multiplexing scheme.
TW096102109A 2006-01-20 2007-01-19 Method and apparatus for pilot multiplexing in a wireless communication system TWI415430B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76048206P 2006-01-20 2006-01-20

Publications (2)

Publication Number Publication Date
TW200746734A true TW200746734A (en) 2007-12-16
TWI415430B TWI415430B (en) 2013-11-11

Family

ID=40429966

Family Applications (2)

Application Number Title Priority Date Filing Date
TW101133196A TWI488454B (en) 2006-01-20 2007-01-19 Method and apparatus for pilot multiplexing in a wireless communication system
TW096102109A TWI415430B (en) 2006-01-20 2007-01-19 Method and apparatus for pilot multiplexing in a wireless communication system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
TW101133196A TWI488454B (en) 2006-01-20 2007-01-19 Method and apparatus for pilot multiplexing in a wireless communication system

Country Status (6)

Country Link
CN (1) CN101375570B (en)
DK (1) DK2026518T3 (en)
ES (1) ES2559418T3 (en)
HU (1) HUE026553T2 (en)
PT (1) PT2026518E (en)
TW (2) TWI488454B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI410090B (en) * 2009-06-12 2013-09-21 Ind Tech Res Inst Transmitting method, receiving method and receiving device for ofdm system

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101723412B1 (en) * 2009-07-17 2017-04-05 엘지전자 주식회사 A method for transmitting downlink reference signal and an apparatus for the same
CN102714527B (en) 2010-01-22 2015-04-01 Lg电子株式会社 Method and apparatus for providing downlink control information in an mimo wireless communication system
CN102883331B (en) * 2011-07-11 2014-12-31 中国移动通信集团北京有限公司 Network coverage method, base station, network accessing method, and base station
DE102013209708A1 (en) * 2013-05-24 2014-11-27 Robert Bosch Gmbh Method for operating a MIMO radar
DE102014206927A1 (en) * 2014-04-10 2015-10-15 Robert Bosch Gmbh Method for determining a time-division multiplex sequence for a MIMO radar
CN105723783B (en) * 2014-08-19 2019-10-18 华为技术有限公司 Synchronization signal sending device, reception device and method and system
WO2016028082A2 (en) * 2014-08-19 2016-02-25 엘지전자 주식회사 Method for generating and transmitting pilot sequence using non-cazac sequence in wireless communication system
US11570597B2 (en) * 2016-02-08 2023-01-31 Qualcomm Incorporated Pilot design for uplink (UL) narrow-band internet of things (NB-IoT)
CN110311875B (en) * 2018-03-20 2022-10-18 华为技术有限公司 Data transmission method and device
FR3087980A1 (en) * 2018-10-25 2020-05-01 Orange METHOD FOR TRANSMITTING PILOT SYMBOLS
CN114629609B (en) * 2020-12-11 2024-07-23 维沃移动通信有限公司 Pilot frequency transmission method, device, network side equipment and storage medium

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2393618B (en) * 2002-09-26 2004-12-15 Toshiba Res Europ Ltd Transmission signals methods and apparatus
US7002900B2 (en) * 2002-10-25 2006-02-21 Qualcomm Incorporated Transmit diversity processing for a multi-antenna communication system
US7986742B2 (en) * 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
US7095790B2 (en) * 2003-02-25 2006-08-22 Qualcomm, Incorporated Transmission schemes for multi-antenna communication systems utilizing multi-carrier modulation
EP1530333A1 (en) * 2003-11-05 2005-05-11 Siemens Mobile Communications S.p.A. Method for channel estimation in a MIMO OFDM system
US7145940B2 (en) * 2003-12-05 2006-12-05 Qualcomm Incorporated Pilot transmission schemes for a multi-antenna system
US8135088B2 (en) * 2005-03-07 2012-03-13 Q1UALCOMM Incorporated Pilot transmission and channel estimation for a communication system utilizing frequency division multiplexing
US8730877B2 (en) * 2005-06-16 2014-05-20 Qualcomm Incorporated Pilot and data transmission in a quasi-orthogonal single-carrier frequency division multiple access system
US20070004465A1 (en) * 2005-06-29 2007-01-04 Aris Papasakellariou Pilot Channel Design for Communication Systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI410090B (en) * 2009-06-12 2013-09-21 Ind Tech Res Inst Transmitting method, receiving method and receiving device for ofdm system

Also Published As

Publication number Publication date
CN101375570A (en) 2009-02-25
TWI415430B (en) 2013-11-11
ES2559418T3 (en) 2016-02-12
HUE026553T2 (en) 2016-06-28
PT2026518E (en) 2016-02-23
DK2026518T3 (en) 2016-01-11
CN101375570B (en) 2014-06-25
TW201301800A (en) 2013-01-01
TWI488454B (en) 2015-06-11

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