WO2010011018A1 - Wireless communication system with multiple transmission antennas using pilot subcarrier allocation - Google Patents

Wireless communication system with multiple transmission antennas using pilot subcarrier allocation Download PDF

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Publication number
WO2010011018A1
WO2010011018A1 PCT/KR2009/002022 KR2009002022W WO2010011018A1 WO 2010011018 A1 WO2010011018 A1 WO 2010011018A1 KR 2009002022 W KR2009002022 W KR 2009002022W WO 2010011018 A1 WO2010011018 A1 WO 2010011018A1
Authority
WO
WIPO (PCT)
Prior art keywords
pilot symbols
ofdma
symbols
pilot
symbol
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2009/002022
Other languages
English (en)
French (fr)
Inventor
Jin Soo Choi
Jin Sam Kwak
Bin Chul Ihm
Wook Bong Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics 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 LG Electronics Inc filed Critical LG Electronics Inc
Priority to CN200980112573.0A priority Critical patent/CN101990750B/zh
Priority to JP2010550612A priority patent/JP5280463B2/ja
Priority to EP09800499.7A priority patent/EP2301214B1/en
Publication of WO2010011018A1 publication Critical patent/WO2010011018A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • 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
    • 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
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2675—Pilot or known symbols
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • 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
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT

Definitions

  • the multiple transmission antennas consist of four (4) transmission antennas
  • the resource block consists of 18 subcarriers
  • each of the OFDMA symbols allocated for pilot subcarriers includes a pilot subcarrier for a first transmission antenna, a pilot subcarrier for a second transmission antenna, a pilot subcarrier for a third transmission antenna, and a pilot subcarrier for a fourth transmission antenna of the four (4) transmission antennas.
  • the multiple transmission antennas consist of two (2) transmission antennas, and each of the OFDMA symbols allocated for pilot subcarriers includes a pilot subcarrier for a first transmission antenna and a pilot subcarrier for a second transmission antenna of the two (2) transmission antennas.
  • the preamble is used for initial synchronization between the BS and the UE, cell search, frequency offset estimation and channel estimation.
  • the FCH includes information regarding the length of the DL-MAP message and the coding scheme of the DL-MAP.
  • the DL-MAP is a region where the DL-MAP message is transmitted.
  • the DL-MAP message defines the access of a downlink channel.
  • the DL-MAP message includes a configuration change count of a Downlink Channel Descriptor (DCD) and a BS identifier (ID).
  • the DCD describes a downlink burst profile applied to a current frame.
  • the downlink burst profile refers to the property of a downlink physical channel, and the DCD is periodically transmitted by the BS through the DCD message.
  • the UL-MAP is a region where the UL-MAP message is transmitted.
  • the UL-MAP is a region where the UL-MAP message is transmitted.
  • the MAP message defines the access of an uplink channel.
  • the UL-MAP message includes a configuration change count of an Uplink Channel Descriptor (UCD), and an effective start time of the uplink allocation defined by the UL-MAP.
  • the UCD describes an uplink burst profile.
  • the uplink burst profile refers to the property of an uplink physical channel, and the UCD is periodically transmitted by the BS through the UCD message.
  • a slot is a minimum data allocation unit and is defined by a time and a subchannel.
  • the number of subchannels depends on a FFT size and time-frequency mapping.
  • the subchannel includes a plurality of subcarriers and the number of subcarriers per subchannel varies according to a permutation method.
  • the pilot overhead is a value obtained by dividing the number of subcarriers allocated to the pilots by the number of all subcarriers which are used.
  • the value in parenthesis indicates the pilot overhead per transmission antenna. Further, according to Reference Document 2, if four or three transmission antennas are used, mapping of the data to the subchannels is performed after puncturing or truncation with respect to channel encoded data.
  • a pilot allocation method of an embodiment according to the present invention may comprise a step of inserting a 'column' that is not allocated for a pilot subcarrier to any place between the second OFDMA symbol and the fifth OFDMA symbol of the 6*6 base tile.
  • pilot allocation structure shown in Fig. 14, the location where pilots for each antenna is allocated is represented in detail as follows:
  • Fig. 15 and Fig. 16 show pilot allocation structures for a tile comprised of 7 OFDMA symbols (i.e., an extended tile).
  • the pilot allocation depicted in Fig. 19 is constructed from the pilot allocation depicted in Fig. 10, and the pilot allocation depicted in Fig. 20 is constructed from the pilot allocation depicted in Fig. 11.

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)
PCT/KR2009/002022 2008-07-22 2009-04-17 Wireless communication system with multiple transmission antennas using pilot subcarrier allocation Ceased WO2010011018A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200980112573.0A CN101990750B (zh) 2008-07-22 2009-04-17 使用导频子载波分配的具有多个发射天线的无线通信系统
JP2010550612A JP5280463B2 (ja) 2008-07-22 2009-04-17 パイロットサブキャリア割当を用いる複数個の送信アンテナを有する無線通信システム
EP09800499.7A EP2301214B1 (en) 2008-07-22 2009-04-17 Channel estimation for MIMO systems supporting 7 or 5 OFDMA symbols

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US8282008P 2008-07-22 2008-07-22
US61/082,820 2008-07-22
US8956508P 2008-08-18 2008-08-18
US61/089,565 2008-08-18
US9921108P 2008-09-23 2008-09-23
US61/099,211 2008-09-23
KR10-2009-0009390 2009-02-05
KR1020090009390A KR101498059B1 (ko) 2008-07-22 2009-02-05 파일롯 서브캐리어 할당을 사용하는 복수개의 송신 안테나를 갖는 무선 통신 시스템

Publications (1)

Publication Number Publication Date
WO2010011018A1 true WO2010011018A1 (en) 2010-01-28

Family

ID=42085123

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/002022 Ceased WO2010011018A1 (en) 2008-07-22 2009-04-17 Wireless communication system with multiple transmission antennas using pilot subcarrier allocation

Country Status (6)

Country Link
US (2) US8139665B2 (enExample)
EP (1) EP2301214B1 (enExample)
JP (1) JP5280463B2 (enExample)
KR (1) KR101498059B1 (enExample)
CN (2) CN103763079B (enExample)
WO (1) WO2010011018A1 (enExample)

Cited By (1)

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WO2012153659A1 (ja) * 2011-05-10 2012-11-15 Ｎｅｃカシオモバイルコミュニケーションズ株式会社 受信装置および受信方法、並びにコンピュータプログラム

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CN100563232C (zh) * 2007-06-25 2009-11-25 北京创毅视讯科技有限公司 一种多载波系统的离散导频信号发送方法
KR101443630B1 (ko) * 2007-11-09 2014-09-23 엘지전자 주식회사 기본 신호 할당 단위 설정 방법 및 이를 이용한 신호 전송방법
KR101498060B1 (ko) * 2008-02-19 2015-03-03 엘지전자 주식회사 Ｏｆｄｍ(ａ) 시스템에서의 상향링크 전송 방법
US8711672B2 (en) * 2008-12-30 2014-04-29 Acer Incorporated Wireless communication system using pilot allocation, method and pilot pattern thereof
US7974178B2 (en) * 2009-03-31 2011-07-05 Intel Corporation Pilot method for 802.16m
US10333662B2 (en) * 2016-03-08 2019-06-25 Avago Technologies International Sales Pte. Limited Multiple user (MU) short feedback response in wireless communications
JP7029451B2 (ja) 2016-11-16 2022-03-03 オッポ広東移動通信有限公司 アップリンク信号の伝送方法及び装置
BR112019012988B1 (pt) * 2016-12-23 2023-12-26 Huawei Technologies Co., Ltd Método de transmissão de sinal, estação base e meio legível por computador
WO2018143654A1 (ko) * 2017-01-31 2018-08-09 엘지전자 주식회사 차세대 무선 통신 시스템에서 서브밴드 단위의 하향링크 스케줄링을 수행하는 방법 및 이를 위한 장치
CN112134676B (zh) * 2020-09-28 2025-11-04 中兴通讯股份有限公司 参考信号传输方法、装置、通信节点及存储介质
CN113839899B (zh) * 2021-10-28 2022-08-02 中国电子科技集团公司第五十四研究所 一种mimo-ofdm系统的信道估计方法

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US20070104283A1 (en) * 2005-10-31 2007-05-10 Jin-Kyu Han Apparatus and method for transmitting/receiving data in a multi-antenna communication system

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WO2012153659A1 (ja) * 2011-05-10 2012-11-15 Ｎｅｃカシオモバイルコミュニケーションズ株式会社 受信装置および受信方法、並びにコンピュータプログラム

Also Published As

Publication number Publication date
US20100020890A1 (en) 2010-01-28
US20120106487A1 (en) 2012-05-03
CN101990750B (zh) 2014-01-15
US8340201B2 (en) 2012-12-25
KR101498059B1 (ko) 2015-03-03
KR20100010463A (ko) 2010-02-01
CN103763079A (zh) 2014-04-30
JP2011517516A (ja) 2011-06-09
EP2301214B1 (en) 2018-01-03
JP5280463B2 (ja) 2013-09-04
EP2301214A4 (en) 2015-12-02
CN103763079B (zh) 2017-04-26
US8139665B2 (en) 2012-03-20
CN101990750A (zh) 2011-03-23
EP2301214A1 (en) 2011-03-30

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