JP2006504339A5 - - Google Patents

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JP2006504339A5
JP2006504339A5 JP2004547248A JP2004547248A JP2006504339A5 JP 2006504339 A5 JP2006504339 A5 JP 2006504339A5 JP 2004547248 A JP2004547248 A JP 2004547248A JP 2004547248 A JP2004547248 A JP 2004547248A JP 2006504339 A5 JP2006504339 A5 JP 2006504339A5
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  1. 無線多重アクセスの複数入力複数出力(MIMO)通信システムにおけるデータを送信する方法であって、以下を具備する方法:
    データ送信のために少なくともつのユーザ端末を選択すること;
    前記少なくともつのユーザ端末に使用するために、システムによってサポートされた、そのうちの1つはステアード空間多重化モードである複数の空間多重化モードのなかから1つのステアード空間多重化モードを選択すること;
    前記少なくともつのユーザ端末のために複数の空間チャネルを介して送信されることになっている複数のデータストリームに対するートを選択すること;そして
    択されたレート及び選択された空間多重化モードでのデータ送信に対して前記少なくともつのユーザ端末をスケジュールすること。
  2. 1つのユーザ端末がデータ送信のために選択され、選択された空間多重化モードはステアード空間多重化モードである請求項1記載の方法。
  3. 1つのユーザ端末へ直交する空間チャネルで複数のデータストリームを送信するために複数のステアリングベクトルを有する複数のデータストリームを空間的に処理することをさらに具備する請求項2記載の方法。
  4. 1つのユーザ端末がデータ送信のために選択され、選択された空間多重化モードは非ステアード空間多重化モードである請求項1記載の方法。
  5. 複数のアンテナから1つのユーザ端末への送信のために複数のデータストリームを提供することをさらに具備する請求項4記載の方法。
  6. 前記少なくとも2つのユーザ端末へ複数のデータストリームをステアするために複数のステアリングベクトルを有する複数のデータストリームを空間的に処理することをさらに具備する請求項記載の方法。
  7. 複数のユーザ端末によって送信された複数のデータストリームの推定値を得るために、複数の受信されたシンボルストリームに受信機空間処理を実行することであって、各データストリームはデータストリームをステアするためにそれぞれのステアリングベクトルで処理される受信機空間処理を実行することをさらに具備する請求項記載の方法。
  8. 複数のユーザ端末がデータ送信のために選択され、選択された空間多重化モードは非ステアード空間多重化モードである請求項1記載の方法。
  9. 複数のユーザ端末によって送信された複数のデータストリームの推定値を得るために、複数の受信されたシンボルストリームに受信機空間処理を実行することをさらに具備する請求項記載の方法。
  10. 複数のアンテナからそれぞれが複数のアンテナを有する複数のユーザ端末への送信に対して複数のデータストリームを提供することをさらに具備する請求項記載の方法。
  11. MIMOシステムは時分割二重化(TDD)システムである請求項1記載の方法。
  12. 少なくとも1つのユーザ端末が調整されて、下りリンクのチャネル応答は上りリンクのチャネル応答と相反であるならば、選択された空間多重化モードはステアード空間多重化モードである請求項11記載の方法。
  13. 少なくとも1つのユーザ端末が調整されていないで、下りリンクのチャネル応答は上りリンクのチャネル応答と相反ではないならば、選択された空間多重化モードは非ステアード空間多重化モードである請求項11記載の方法。
  14. 複数のレートを選択することは、
    複数の空間チャネルの信号対雑音及び干渉比(SNR)を推定することと、そして
    複数の空間チャネルの推定されたSNRに基づいてートを選択することとを含む請求項1記載の方法。
  15. 無線多重アクセスの複数入力複数出力(MIMO)通信システムにおける装置であって、以下を具備する装置:
    データ送信のために少なくともつのユーザ端末を選択するように動作する端末選択器;
    前記少なくともつのユーザ端末に使用するために、システムによってサポートされた、そのうちの1つはステアード空間多重化モードである複数の空間多重化モードのなかからステアード空間多重化モードを選択するように動作するモード選択器;
    前記少なくともつのユーザ端末のために、MIMOチャネルの複数の空間チャネルを介して送信されることになっている複数のデータストリームに対するートを選択するように動作するレート選択器;そして
    択されたレート及び選択された空間多重化モードでのデータ送信に対して前記少なくともつのユーザ端末をスケジュールするように動作するスケジューラ。
  16. 複数のアンテナから前記少なくともつのユーザ端末への送信に対して複数の送信シンボルストリームを得るために、選択された空間多重化モードに従って複数のデータストリームを空間的に処理するように動作する送信空間プロセッサをさらに具備する請求項15記載の装置。
  17. 前記少なくともつのユーザ端末によって送信された複数のデータストリームの推定値を得るために、選択された空間多重化モードに従って複数の受信されたシンボルストリームを空間的に処理するように動作する受信空間プロセッサをさらに具備する請求項15記載の装置。
  18. 無線多重アクセスの複数入力複数出力(MIMO)通信システムにおける装置であって、以下を具備する装置:
    データ送信のために少なくともつのユーザ端末を選択するための手段;
    前記少なくともつのユーザ端末に使用するために、システムによってサポートされた、そのうちの1つはステアード空間多重化モードである複数の空間多重化モードのなかからステアード空間多重化モードを選択するための手段;
    前記少なくともつのユーザ端末のために、MIMOチャネルの複数の空間チャネルを介して送信されることになっている複数のデータストリームに対するートを選択するための手段;そして
    複数の選択されたレート及び選択された空間多重化モードでのデータ送信に対して前記少なくともつのユーザ端末をスケジュールするための手段。
  19. 複数のアンテナから前記少なくとも1つのユーザ端末への送信に対して複数の送信シンボルストリームを得るために、選択された空間多重化モードに従って複数のデータストリームを空間的に処理するための手段をさらに具備する請求項18記載の装置。
  20. 前記少なくとも1つのユーザ端末によって送信された複数のデータストリームの推定値を得るために、選択された空間多重化モードに従って複数の受信されたシンボルストリームを空間的に処理するための手段をさらに具備する請求項18記載の装置。
  21. 無線の複数入力複数出力(MIMO)通信システムにおけるデータを受信する方法であって、以下を具備する方法:
    第1の複数の復元されたデータシンボルストリームを得るために第1の空間多重化モードに従って第1の複数の受信されたシンボルストリームに受信機空間処理を実行すること;
    第1の複数の復号されたデータストリームを得るために第1の複数のレートに従って第1の複数の復元されたデータシンボルストリームを復調及び復号すること;
    第2の複数の復元されたデータシンボルストリームを得るために第2の空間多重化モードに従って第2の複数の受信されたシンボルストリームに受信機空間処理を実行すること;そして
    第2の複数の復号されたデータストリームを得るために第2の複数のレートに従って第2の複数の復元されたデータシンボルストリームを復調及び復号すること。
  22. 第1の空間多重化モードはステアード空間多重化モードであり、ユーザ端末のためにMIMOチャネルの複数の空間チャネルに対する複数の固有ベクトルで第1の複数の受信されたシンボルストリームが空間的に処理される請求項21記載の方法。
  23. 第2の空間多重化モードは非ステアード空間多重化モードである請求項21記載の方法。
  24. 第2の複数の復号されたデータストリームは、単一のユーザ端末によって送信された複数のデータストリームの推定値である請求項23記載の方法。
  25. 第2の複数の復号されたデータストリームは、複数のユーザ端末によって同時に送信された複数のデータストリームの推定値である請求項23記載の方法。
  26. 第2の複数の受信されたシンボルストリームは、チャネル相関行列反転(CCMI)技術に基づいて空間的に処理される請求項23記載の方法。
  27. 第2の複数の受信されたシンボルストリームは、最小平均二乗誤差(MMSE)技術に基づいて空間的に処理される請求項23記載の方法。
  28. 第2の複数の受信されたシンボルストリームは、連続干渉除去(SIC)技術に基づいて空間的に処理される請求項23記載の方法。
  29. 無線の複数入力複数出力(MIMO)通信システムにおける装置であって、以下を具備する装置:
    第1の複数の復元されたデータシンボルストリームを得るために第1の空間多重化モードに従って第1の複数の受信されたシンボルストリームに受信機空間処理を実行するように動作し、
    第2の複数の復元されたデータシンボルストリームを得るために第2の空間多重化モードに従って第2の複数の受信されたシンボルストリームに受信機空間処理を実行するように動作する受信空間プロセッサ;そして
    第1の複数の復号されたデータストリームを得るために第1の複数のレートに従って第1の複数の復元されたデータシンボルストリームを復調及び復号するように動作し、
    第2の複数の復号されたデータストリームを得るために第2の複数のレートに従って第2の複数の復元されたデータシンボルストリームを復調及び復号するように動作する受信データプロセッサ。
  30. 無線の複数入力複数出力(MIMO)通信システムにおけるデータを送信する方法であって、以下を具備する方法:
    データ送信に使用する空間多重化モード及び複数のレートを示している情報を受信することであって、空間多重化モードはシステムによってサポートされる複数の空間多重化モードのなかから選択され、複数のレートのそれぞれはシステムによってサポートされるレートのセットのなかから選択される受信すること;
    複数のデータシンボルストリームを得るために複数のレートに従って複数のデータストリームを符号化及び変調すること;そして
    複数のアンテナからの送信に対して複数の送信シンボルストリームを得るために空間多重化モードに従って複数のデータシンボルストリームを空間的に処理すること。
  31. 空間多重化モードはステアード空間多重化モードであり、MIMOチャネルの複数の直交する空間チャネルで複数のデータシンボルストリームを送信するために複数のステアリングベクトルで複数のデータシンボルストリームが空間的に処理される請求項30記載の方法。
  32. 複数の直交する空間チャネルのそれぞれでステアードパイロットを送信することをさらに具備する請求項31記載の方法。
  33. 空間多重化モードは非ステアード空間多重化モードであり、複数のデータシンボルストリームは複数の送信シンボルストリームとして提供される請求項30記載の方法。
  34. 上りリンクのチャネル応答が下りリンクのチャネル応答に相反となるように調整を実行することをさらに具備する請求項30記載の方法。
  35. 無線の複数入力複数出力(MIMO)通信システムにおける装置であって、以下を具備する装置:
    データ送信に使用する空間多重化モード及び複数のレートを示している情報を受信するように動作するコントローラであって、空間多重化モードはシステムによってサポートされる複数の空間多重化モードのなかから選択され、複数のレートのそれぞれはシステムによってサポートされるレートのセットのなかから選択されるコントローラ;
    複数のデータシンボルストリームを得るために複数のレートに従って複数のデータストリームを符号化及び変調するように動作する送信データプロセッサ;そして
    複数のアンテナからの送信に対して複数の送信シンボルストリームを得るために空間多重化モードに従って複数のデータシンボルストリームを空間的に処理するように動作する送信空間プロセッサ。
  36. 無線の複数入力複数出力(MIMO)通信システムにおけるデータを受信する方法であって、以下を具備する方法:
    データ送信に使用するステアード空間多重化モード及び少なくとも1つのレートを示している情報を受信することであって、ステアード空間多重化モードはシステムによってサポートされるそのうちの1つは少なくとも2つの端末のためのステアード空間多重化モードである複数の空間多重化モードのなかから選択され、少なくとも1つのレートのそれぞれはシステムによってサポートされるレートのセットのなかから選択される受信すること;
    少なくとも1つの復元されたデータシンボルストリームを得るためにステアード空間多重化モードに従って少なくとも1つの受信されたシンボルストリームを空間的に処理すること;そして
    少なくとも1つの復号されたデータストリームを得るために少なくとも1つのレートに従って少なくとも1つの復元されたデータシンボルストリームを復調及び復号すること。
  37. 前記複数の空間多重化モードの1つは非ステアード空間多重化モードである請求項36記載の方法。
  38. 複数の復元されたデータシンボルストリームを得るために、チャネル相関行列反転(CCMI)技術、最小平均二乗誤差(MMSE)技術、或いは連続干渉除去(SIC)技術に基づいて複数の受信されたシンボルストリームが空間的に処理される請求項37記載の方法。
  39. 1つの復元されたデータシンボルストリームを得るためにチャネル利得の推定値で1つの受信されたシンボルストリームが処理される請求項37記載の方法。
  40. 無線の複数入力複数出力(MIMO)通信システムにおける装置であって、以下を具備する装置:
    データ送信に使用するステアード空間多重化モード及び少なくとも1つのレートを示している情報を受信するように動作するコントローラであって、ステアード空間多重化モードはシステムによってサポートされるそのうちの1つは少なくとも2つの端末のためのステアード空間多重化モードである複数の空間多重化モードのなかから選択され、少なくとも1つのレートのそれぞれはシステムによってサポートされるレートのセットのなかから選択されるコントローラ;
    少なくとも1つの復元されたデータシンボルストリームを得るためにステアード空間多重化モードに従って少なくとも1つの受信されたシンボルストリームを空間的に処理するように動作する受信空間プロセッサ;そして
    少なくとも1つの復号されたデータストリームを得るために少なくとも1つのレートに従って少なくとも1つの復元されたデータシンボルストリームを復調及び復号するように動作する受信データプロセッサ。
  41. 無線の複数入力複数出力(MIMO)通信システムにおけるデータを受信するための装置であって、以下を具備する装置:
    データ送信に使用するステアード空間多重化モード及び少なくとも1つのレートを示している情報を受信するための手段であって、ステアード空間多重化モードはシステムによってサポートされるそのうちの1つは少なくとも2つの端末のためのステアード空間多重化モードである複数の空間多重化モードのなかから選択され、少なくとも1つのレートのそれぞれはシステムによってサポートされるレートのセットのなかから選択される手段;
    少なくとも1つの復元されたデータシンボルストリームを得るためにステアード空間多重化モードに従って少なくとも1つの受信されたシンボルストリームを空間的に処理するための手段;そして
    少なくとも1つの復号されたデータストリームを得るために少なくとも1つのレートに従って少なくとも1つの復元されたデータシンボルストリームを復調及び復号するための手段。
  42. 前記複数の空間多重化モードの1つは非ステアード空間多重化モードである請求項41記載の装置。
  43. 前記空間的に処理するための手段は、複数の復元されたデータシンボルストリームを得るために、チャネル相関行列反転(CCMI)技術、最小平均二乗誤差(MMSE)技術、或いは連続干渉除去(SIC)技術に基づいて空間的に処理するための手段を含む請求項41記載の装置。
  44. 前記復調及び復号するための手段は、1つの復元されたデータシンボルストリームを得るためにチャネル利得の推定値で少なくとも1つの受信されたシンボルストリームを処理するための手段を含む請求項41記載の装置。
JP2004547248A 2002-10-25 2003-10-24 複数の空間多重化モードを有するmimoシステム Expired - Lifetime JP4860924B2 (ja)

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US60/421,309 2002-10-25
US10/693,429 US8208364B2 (en) 2002-10-25 2003-10-23 MIMO system with multiple spatial multiplexing modes
US10/693,429 2003-10-23
PCT/US2003/034519 WO2004038984A2 (en) 2002-10-25 2003-10-24 Mimo system with multiple spatial multiplexing modes

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