TW200625849A - Pilot symbol transmission for multiple-transmit communication systems - Google Patents

Pilot symbol transmission for multiple-transmit communication systems

Info

Publication number
TW200625849A
TW200625849A TW094125417A TW94125417A TW200625849A TW 200625849 A TW200625849 A TW 200625849A TW 094125417 A TW094125417 A TW 094125417A TW 94125417 A TW94125417 A TW 94125417A TW 200625849 A TW200625849 A TW 200625849A
Authority
TW
Taiwan
Prior art keywords
pilot symbols
communication systems
pilot symbol
network device
symbol transmission
Prior art date
Application number
TW094125417A
Other languages
English (en)
Inventor
Rajendra Tushar Moorti
Rohit V Gaikwad
Original Assignee
Broadcom Corp
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 Broadcom Corp filed Critical Broadcom Corp
Publication of TW200625849A publication Critical patent/TW200625849A/zh

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
    • H04B7/04—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
    • 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
    • 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
    • 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
    • H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain
    • 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
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • 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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
TW094125417A 2004-07-27 2005-07-27 Pilot symbol transmission for multiple-transmit communication systems TW200625849A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59109604P 2004-07-27 2004-07-27
US63410104P 2004-12-08 2004-12-08

Publications (1)

Publication Number Publication Date
TW200625849A true TW200625849A (en) 2006-07-16

Family

ID=35169651

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094125417A TW200625849A (en) 2004-07-27 2005-07-27 Pilot symbol transmission for multiple-transmit communication systems

Country Status (3)

Country Link
US (1) US20060164971A1 (zh)
EP (1) EP1622288B1 (zh)
TW (1) TW200625849A (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2790331B1 (en) 2005-08-24 2019-01-09 Wi-Fi One, LLC MIMO-OFDM transmission device and MIMO-OFDM transmission method
US8867570B2 (en) * 2007-05-01 2014-10-21 Broadcom Corporation Methods of transmitting pilot tones and data in spatial multiplexing transmission

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10115221A1 (de) * 2001-03-28 2002-10-10 Bosch Gmbh Robert Verfahren zur Rahmen- und Frequenzsynchronisation eines OFDM-Signals und Verfahren zum Senden eines OFDM-Signals
KR100510434B1 (ko) * 2001-04-09 2005-08-26 니폰덴신뎅와 가부시키가이샤 Ｏｆｄｍ신호전달 시스템, ｏｆｄｍ신호 송신장치 및ｏｆｄｍ신호 수신장치
EP1284545B1 (en) * 2001-08-13 2008-07-02 Motorola, Inc. Transmit diversity wireless communication
US7248559B2 (en) * 2001-10-17 2007-07-24 Nortel Networks Limited Scattered pilot pattern and channel estimation method for MIMO-OFDM systems
US7076008B2 (en) * 2001-11-02 2006-07-11 Texas Instruments Incorporated Method and apparatus for estimating and correcting gain and phase imbalance in a code division multiple access system
CA2415170C (en) * 2001-12-28 2008-07-15 Ntt Docomo, Inc. Receiver, transmitter, communication system, and method of communication
US7092436B2 (en) * 2002-01-25 2006-08-15 Mitsubishi Electric Research Laboratories, Inc. Expectation-maximization-based channel estimation and signal detection for wireless communications systems
US7324429B2 (en) * 2002-10-25 2008-01-29 Qualcomm, Incorporated Multi-mode terminal in a wireless MIMO system
US7986742B2 (en) * 2002-10-25 2011-07-26 Qualcomm Incorporated Pilots for MIMO communication system
DE60301270T2 (de) * 2003-03-27 2006-07-20 Nnt Docomo, Inc. Vorrichtung und verfahren zur schätzung einer mehrzahl von kanälen
US7616698B2 (en) * 2003-11-04 2009-11-10 Atheros Communications, Inc. Multiple-input multiple output system and method
DE60335305D1 (de) * 2003-12-22 2011-01-20 Ericsson Telefon Ab L M Verfahren zur bestimmung von sendegewichten
CN106160830B (zh) * 2004-03-15 2020-02-14 苹果公司 用于具有四根发射天线的ofdm系统的导频设计
US7372913B2 (en) * 2004-07-22 2008-05-13 Qualcomm Incorporated Pilot tones in a multi-transmit OFDM system usable to capture transmitter diversity benefits

Also Published As

Publication number Publication date
US20060164971A1 (en) 2006-07-27
EP1622288B1 (en) 2012-10-24
EP1622288A1 (en) 2006-02-01

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