TW200721749A - Radio apparatus and communication system - Google Patents

Radio apparatus and communication system

Info

Publication number
TW200721749A
TW200721749A TW095133221A TW95133221A TW200721749A TW 200721749 A TW200721749 A TW 200721749A TW 095133221 A TW095133221 A TW 095133221A TW 95133221 A TW95133221 A TW 95133221A TW 200721749 A TW200721749 A TW 200721749A
Authority
TW
Taiwan
Prior art keywords
unit
partial
packet signal
communication system
packet
Prior art date
Application number
TW095133221A
Other languages
English (en)
Inventor
Yasuhiro Tanaka
Original Assignee
Sanyo Electric Co
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 Sanyo Electric Co filed Critical Sanyo Electric Co
Publication of TW200721749A publication Critical patent/TW200721749A/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
    • H04L1/0086—Unequal error protection
    • 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
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • 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
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • 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
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • 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
    • H04L27/2603—Signal structure ensuring backward compatibility with legacy system
    • 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
    • H04L5/0023—Time-frequency-space
    • 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
    • H04L5/0058—Allocation criteria

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Small-Scale Networks (AREA)
TW095133221A 2005-09-14 2006-09-08 Radio apparatus and communication system TW200721749A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71649405P 2005-09-14 2005-09-14

Publications (1)

Publication Number Publication Date
TW200721749A true TW200721749A (en) 2007-06-01

Family

ID=37499327

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095133221A TW200721749A (en) 2005-09-14 2006-09-08 Radio apparatus and communication system

Country Status (5)

Country Link
US (1) US8223644B2 (zh)
JP (1) JP4841330B2 (zh)
CN (1) CN101228729B (zh)
TW (1) TW200721749A (zh)
WO (1) WO2007032417A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009107656A1 (ja) * 2008-02-27 2009-09-03 京セラ株式会社 無線通信システム、送信装置および通信制御方法
WO2009107635A1 (ja) * 2008-02-27 2009-09-03 京セラ株式会社 無線通信システム、送信装置および通信制御方法
JP2009225343A (ja) * 2008-03-18 2009-10-01 Fujitsu Ltd 無線通信装置
US9924512B1 (en) * 2009-03-24 2018-03-20 Marvell International Ltd. OFDMA with block tone assignment for WLAN
US9113490B2 (en) * 2011-04-24 2015-08-18 Broadcom Corporation Short training field (STF) for use within single user, multiple user, multiple access, and/or MIMO wireless communications
US9578681B2 (en) * 2012-12-29 2017-02-21 Intel Corporation Methods and arrangements for a low power device in wireless networks

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3550182B2 (ja) * 1994-06-28 2004-08-04 シロキ工業株式会社 シートトラック
JPH08116313A (ja) 1994-10-17 1996-05-07 Fujitsu Ltd 無線伝送方式
US6052408A (en) * 1995-09-06 2000-04-18 Aironet Wireless Communications, Inc. Cellular communication system with dynamically modified data transmission parameters
KR100740726B1 (ko) * 2000-01-20 2007-07-19 노오텔 네트웍스 리미티드 고속 데이터를 위한 멀티-캐리어 정렬
US6882634B2 (en) * 2000-04-07 2005-04-19 Broadcom Corporation Method for selecting frame encoding parameters to improve transmission performance in a frame-based communications network
JP4511686B2 (ja) * 2000-05-26 2010-07-28 パナソニック株式会社 無線通信装置及び無線通信方法
EP1274183A1 (en) * 2001-07-05 2003-01-08 Alcatel Data transmission method employing different modulation schemes on radio communication channels
JP4018989B2 (ja) * 2003-01-20 2007-12-05 松下電器産業株式会社 送信装置及び送信方法
US7508748B2 (en) * 2003-10-24 2009-03-24 Qualcomm Incorporated Rate selection for a multi-carrier MIMO system
US7489688B2 (en) * 2003-12-23 2009-02-10 Agere Systems Inc. Frame aggregation
JP4130191B2 (ja) * 2004-01-28 2008-08-06 三洋電機株式会社 送信装置
JP4028504B2 (ja) * 2004-03-22 2007-12-26 株式会社東芝 無線送信装置、無線受信装置、及び無線通信システム
JP2005341317A (ja) * 2004-05-27 2005-12-08 Toshiba Corp 無線通信装置
JP4605643B2 (ja) * 2005-02-04 2011-01-05 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 無線通信システム、送信装置、受信装置、送信方法および受信方法
JP4583457B2 (ja) * 2008-01-16 2010-11-17 パナソニック株式会社 変調方法及び変調器

Also Published As

Publication number Publication date
CN101228729A (zh) 2008-07-23
US20070076581A1 (en) 2007-04-05
JP2007082187A (ja) 2007-03-29
CN101228729B (zh) 2011-09-21
JP4841330B2 (ja) 2011-12-21
US8223644B2 (en) 2012-07-17
WO2007032417A1 (en) 2007-03-22

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