WO2008093503A1 - 推定方法ならびにそれを利用した推定装置、受信装置および無線受信システム - Google Patents

推定方法ならびにそれを利用した推定装置、受信装置および無線受信システム Download PDF

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Publication number
WO2008093503A1
WO2008093503A1 PCT/JP2008/000115 JP2008000115W WO2008093503A1 WO 2008093503 A1 WO2008093503 A1 WO 2008093503A1 JP 2008000115 W JP2008000115 W JP 2008000115W WO 2008093503 A1 WO2008093503 A1 WO 2008093503A1
Authority
WO
WIPO (PCT)
Prior art keywords
estimation
signal
multicarrier signal
multicarrier
estimation unit
Prior art date
Application number
PCT/JP2008/000115
Other languages
English (en)
French (fr)
Inventor
Seigo Nakao
Yasutaka Ogawa
Takeo Ohgane
Toshihiko Nishimura
Original Assignee
Sanyo Electric Co., Ltd.
National University Corporation Hokkaido University
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., Ltd., National University Corporation Hokkaido University filed Critical Sanyo Electric Co., Ltd.
Publication of WO2008093503A1 publication Critical patent/WO2008093503A1/ja

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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
    • 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
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • 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
    • 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
    • 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
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607—Cyclic extensions

Abstract

　推定部５４は、ガードトーンが配置されたマルチキャリア信号を入力する。また、推定部５４は、入力したマルチキャリア信号に対して、ガードトーンが配置されたサブキャリアでの信号強度を測定することによって、雑音に対応した成分の量を推定する。ここで、入力される複数のマルチキャリア信号はパケット信号を構成するとともに、当該パケット信号の前方に配置されたマルチキャリア信号は既知の値を有し、既知の値のマルチキャリア信号に続くマルチキャリア信号は未知の値を有している。また、推定部５４は、既知の値を有したマルチキャリア信号の期間において、雑音に対応した成分の量を推定するとともに、未知の値を有したマルチキャリア信号の期間において、雑音に対応した成分の量を更新する。
PCT/JP2008/000115 2007-02-01 2008-01-30 推定方法ならびにそれを利用した推定装置、受信装置および無線受信システム WO2008093503A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-023093 2007-02-01
JP2007023093A JP2008193223A (ja) 2007-02-01 2007-02-01 推定方法ならびにそれを利用した推定装置、受信装置および無線受信システム

Publications (1)

Publication Number Publication Date
WO2008093503A1 true WO2008093503A1 (ja) 2008-08-07

Family

ID=39673817

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/000115 WO2008093503A1 (ja) 2007-02-01 2008-01-30 推定方法ならびにそれを利用した推定装置、受信装置および無線受信システム

Country Status (2)

Country Link
JP (1) JP2008193223A (ja)
WO (1) WO2008093503A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100290449A1 (en) * 2008-08-20 2010-11-18 Qualcomm Incorporated Preamble extensions
PL2399426T3 (pl) 2009-02-18 2017-07-31 Lg Electronics Inc. Sposób dostępu do współistniejącego kanału

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004320679A (ja) * 2003-04-21 2004-11-11 National Institute Of Information & Communication Technology 送信装置、受信装置、送信方法、受信方法、ならびに、プログラム
JP2006339887A (ja) * 2005-05-31 2006-12-14 Toshiba Corp 無線送信装置及び無線送信方法
JP2007500489A (ja) * 2003-05-14 2007-01-11 クゥアルコム・インコーポレイテッド Ｏｆｄｍシステムにおける干渉および雑音の推定

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004320679A (ja) * 2003-04-21 2004-11-11 National Institute Of Information & Communication Technology 送信装置、受信装置、送信方法、受信方法、ならびに、プログラム
JP2007500489A (ja) * 2003-05-14 2007-01-11 クゥアルコム・インコーポレイテッド Ｏｆｄｍシステムにおける干渉および雑音の推定
JP2006339887A (ja) * 2005-05-31 2006-12-14 Toshiba Corp 無線送信装置及び無線送信方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MUJTABA S.A.: "Tgn Sync Proposal Technical Specification", IEEE802.11-04/0889R7, July 2005 (2005-07-01), pages 81 - 83 *

Also Published As

Publication number Publication date
JP2008193223A (ja) 2008-08-21

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