JP2002118534A5 - - Google Patents

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JP2002118534A5
JP2002118534A5 JP2001205330A JP2001205330A JP2002118534A5 JP 2002118534 A5 JP2002118534 A5 JP 2002118534A5 JP 2001205330 A JP2001205330 A JP 2001205330A JP 2001205330 A JP2001205330 A JP 2001205330A JP 2002118534 A5 JP2002118534 A5 JP 2002118534A5
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orthogonal
pilot
pilot symbols
pilot symbol
pairs
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JP5123451B2 (ja
JP2002118534A (ja
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Priority claimed from EP00114423.7A external-priority patent/EP1170897B1/en
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【特許請求の範囲】
【請求項１】
複数の伝送アンテナを有し、無線直交周波数分割多重通信システムにおいて信号を送信する送信装置において、
第１及び第２のデータストリームをそれぞれ直交周波数分割多重信号として送信する第１及び第２のアンテナと、
上記第１のデータストリームに組み込まれ、上記第１のアンテナを介して送信される第１のパイロットシンボルと、上記第２のデータストリームに組み込まれ、上記第２のアンテナを介して送信される第２のパイロットシンボルとを生成するパイロットシンボル生成手段とを備え、
その場合上記第１及び第２のパイロットシンボルは、直交周波数分割多重システムにおいて、互いに対応し、同じ周波数及び時点に割り当てられており、時間軸及び周波数軸で規則的に配置されており、
その場合上記第１のパイロットシンボルの少なくともいくつかの対が、上記第２のパイロットシンボルの対応する対にそれぞれ直交する、
送信装置。
【請求項２】
周波数軸上に隣接する上記第１のパイロットシンボルの少なくともいくつかの対は、上記第２のパイロットシンボルの対応する対とそれぞれ直交し、時間軸上に隣接する上記第１のパイロットシンボルの少なくともいくつかの対は、上記第２のパイロットシンボルの該対応する対とそれぞれ直交する、請求項１記載の送信装置。
【請求項３】
上記同じ周波数及び時点に割り当てられている上記第１パイロットシンボルと上記第２のパイロットシンボルとの対応するものは、周波数軸及び時間軸上で、交互に同一となる又は直交するように配列されている、請求項２記載の送信装置。
【請求項４】
複数の伝送アンテナを有し、無線直交周波数分割多重通信システムにおいて信号を受信する受信装置において、
直交周波数分割多重通信システムの送信装置の第１及び第２のアンテナから送信される信号を受信するアンテナと、
上記第１及び第２のアンテナは、それぞれ対応する第１及び第２のパイロットシンボルを送信することと、
その場合上記第１のパイロットシンボルと上記第２のパイロットシンボルとは、直交周波数分割多重システムにおいて、互いに対応し、同じ周波数及び時点に割り当てられており、時間軸及び周波数軸上で規則的に配置されており、また、上記第１のパイロットシンボルの少なくともいくつかの対が、上記第２のパイロットシンボルの対応する対とそれぞれ直交することと、
上記信号からパイロットシンボルを検出し、該検出したパイロットシンボルの処理を行い、該処理に基づいて、上記第１及び第２のアンテナから送信されてきた信号の伝送品質を個別に判定する処理手段と、
を備える受信装置。
【請求項５】
周波数軸上に隣接する上記第１のパイロットシンボルの少なくともいくつかの対は、上記第２のパイロットシンボルの対応する対とそれぞれ直交し、時間軸上に隣接する上記第１のパイロットシンボルの少なくともいくつかの対は、上記第２のパイロットシンボルの該対応する対とそれぞれ直交する、請求項４記載の受信装置。
【請求項６】
上記第１及び第２のアンテナから送信されてくる第１及び第２のパイロットシンボルは、周波数軸及び時間軸上で交互に同一となり又は直交するように配列されており、上記処理手段は、上記パイロットシンボルの隣接する対を処理することにより伝送品質を判定する、請求項４記載の受信装置。
【請求項７】
第１及び第２のアンテナを備える送信装置が信号を送信する無線直交周波数分割多重通信システムにおいてチャンネル推定を実行するチャンネル推定方法において、
直交周波数分割多重通信システムにおいて、互いに対応し、同じ周波数及び時点に割り当てられており、時間軸及び周波数軸上で規則的に配置されている第１及び第２のパイロットシンボルを上記第１及び第２のアンテナから送信するステップと
その場合上記第１のパイロットシンボル少なくともいくつかの対は、上記第２のパイロットシンボルの対応する対にそれぞれ直交することと、
上記第１及び第２のパイロットシンボルを受信装置が備える単一のアンテナにより受信するステップと、
上記受信したパイロットシンボルの処理を行い、該処理に基づいて、上記第１のアンテナと第２のアンテナから送信されてきた上記信号の伝送品質を個別に判定するステップと
を有するチャンネル推定方法。
【請求項８】
周波数軸上に隣接する上記第１のパイロットシンボルの少なくともいくつかの対は、上記第２のパイロットシンボルの対応する対とそれぞれ直交し、時間軸上に隣接する上記第１のパイロットシンボルの少なくともいくつかの対は、上記第２のパイロットシンボルの該対応する対とそれぞれ直交する、請求項７記載のチャネル推定方法。
【請求項９】
上記第１及び第２のアンテナから送信されてきた第１及び第２のパイロットシンボルは、周波数軸及び時間軸上で交互に同一となり又は直交するように配列されており、上記処理手段は、パイロットシンボルの隣接する対を処理することにより伝送品質を判定する、請求項７記載のチャネル推定方法。
JP2001205330A 2000-07-05 2001-07-05 送信装置及び基地局 Expired - Lifetime JP5123451B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP00114423.7 2000-07-05
EP00114423.7A EP1170897B1 (en) 2000-07-05 2000-07-05 Pilot pattern design for a STTD scheme in an OFDM system

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JP2002118534A JP2002118534A (ja) 2002-04-19
JP2002118534A5 true JP2002118534A5 (ja) 2008-08-21
JP5123451B2 JP5123451B2 (ja) 2013-01-23

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EP (4) EP2262157A3 (ja)
JP (2) JP5123451B2 (ja)
CN (1) CN1201518C (ja)

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