JP2015173485A - セルラ・ネットワーク内のアンテナ・ビーム形成をサポートするシステムおよび方法 - Google Patents
セルラ・ネットワーク内のアンテナ・ビーム形成をサポートするシステムおよび方法 Download PDFInfo
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Abstract
Description
本願は、2008年5月9日出願の仮特許出願第61/052011号に関連し、35U.S.C.§119(e)の下でこうした先の出願に対する優先権を主張し、本願は、2008年10月6日出願のPCT出願第PCT/US2008/078913号に関連し、35U.S.C.§120の下でこの先の出願に対する優先権を主張する。この仮特許出願および先行PCT出願は、参照により本特許出願に組み込まれる。
Claims (24)
- アクセス・ノードから、セル・セクタ内のカバレッジを提供する少なくとも2つの空間ビームを有する通信システム上の受信機への伝送のための最良のビームを選択する方法であって、
アクセス・ノードから1つまたは複数の空間ビーム伝送を介してパイロット・チャネル・インジケータ信号を周期的に送信すること、
前記受信機からのフィードバック信号を前記アクセス・ノードで取得することであって、前記フィードバック信号が、前記アクセス・ノードから送信された前記パイロット・チャネル・インジケータ信号から求められたチャネル品質インジケータと、前記受信機が位置する空間ビームの間のビーム位置の表示を有するビーム索引とを有すること、および
前記チャネル品質インジケータおよび前記ビーム索引の解析に基づいて、前記アクセス・ノードから前記受信機への伝送をスケジューリングすることであって、前記解析が、他の空間ビーム上の他の伝送との干渉を生み出すことのない、前記受信機への伝送に最も適した前記受信機への伝送ビームを求めること
を含む方法。 - 前記パイロット・チャネル・インジケータ信号データが、前記セクタ内のすべてのビーム形成された伝送上で送信される請求項1に記載の方法。
- 前記パイロット・チャネル・インジケータ信号が、前記セル・サイト・セクタの縁部に位置する受信機が前記パイロット・チャネル・インジケータ信号を受信することを確実にするように高出力で送信される請求項1に記載の方法。
- 前記アクセス・ノードが、前記フィードバック信号内の前記ビーム索引値または前記チャネル品質インジケータから、前記ビームが高出力で送信されていることを判定する請求項1に記載の方法。
- 前記受信機が、前記フィードバック信号内の前記ビーム索引値または前記チャネル品質インジケータから、前記ビームが高出力で送信されていることを判定する請求項1に記載の方法。
- アクセス・ノードから、セル・セグメント内の第1カバレッジ・エリア内のカバレッジを提供する少なくとも2つの空間ビームを有する通信システム上の受信機への伝送のための最良のビームを選択する方法であって、
アクセス・ノードから1つまたは複数の空間ビーム伝送を介してパイロット・チャネル・インジケータ信号を周期的に送信すること、
前記受信機からのフィードバック信号を前記アクセス・ノードで取得することであって、前記フィードバック信号が、前記アクセス・ノードから送信された前記パイロット・チャネル・インジケータ信号から求められたチャネル品質インジケータと、ビームが重複する位置に前記受信機が位置する場合に前記受信機が位置する空間ビームの間の2つのビーム位置の表示を有する2つのビーム索引とを有すること、および
前記フィードバック信号で受信された前記チャネル品質インジケータおよび前記ビーム索引値のうちの少なくとも1つの解析に基づいて、前記アクセス・ノードから前記受信機への伝送をスケジューリングすることであって、前記解析が、他の空間ビーム上の他の伝送との干渉を生み出すことのない、前記受信機への伝送に最も適した空間伝送ビームを求めること
を含む方法。 - 前記パイロット・チャネル・インジケータ信号データが、前記セクタ内のすべてのビーム形成された伝送上で送信される請求項6に記載の方法。
- 前記パイロット・チャネル・インジケータ信号が、前記セル・サイト・セクタの縁部に位置する受信機が前記パイロット・チャネル・インジケータ信号を受信することを確実にするように高出力で送信される請求項6に記載の方法。
- 前記アクセス・ノードが、前記フィードバック信号内の前記ビーム索引値または前記チャネル品質インジケータから、前記ビームが高出力で送信されていることを判定する請求項6に記載の方法。
- 前記受信機が、前記フィードバック信号内の前記ビーム索引値または前記チャネル品質インジケータから、前記ビームが高出力で送信されていることを判定する請求項6に記載の方法。
- 前記受信機が重複するビーム・カバレッジのエリア内に位置する場合、前記アクセス・ノードが、2つの空間ビーム上で前記受信機への伝送をスケジューリングする請求項6に記載の方法。
- 複数の重複するビーム上で送られる前記データが、同一のスクランブリング・プロトコルを介して処理される請求項11に記載の方法。
- アクセス・ノードから、セル・セクタ内のカバレッジを提供する少なくとも2つの空間ビームを有する通信システム上の受信機への伝送のための最良のビームを選択する伝送システムであって、方法が、
1つまたは複数の空間ビーム伝送を介してパイロット・チャネル・インジケータ信号を周期的に送信するアクセス・ノードであって、前記受信機からフィードバック信号を取得し、前記フィードバック信号が、前記アクセス・ノードから送信された前記パイロット・チャネル・インジケータ信号から求められたチャネル品質インジケータと、前記受信機が位置する空間ビームの間のビーム位置の表示を有するビーム索引とを有するアクセス・ノードを備え、
前記アクセス・ノードが、前記チャネル品質インジケータおよび前記ビーム索引値の解析に基づいて前記受信機への伝送をスケジューリングし、前記解析が、他の空間ビーム上の他の伝送との干渉を生み出すことのない、前記受信機への伝送に最も適した前記受信機への伝送ビームがどれであるかを求めるように実施されるシステム。 - 前記パイロット・チャネル・インジケータ信号データが、前記セクタ内のすべてのビーム形成された伝送上で送信される請求項13に記載のシステム。
- 前記パイロット・チャネル・インジケータ信号が、前記セル・サイト・セクタの縁部に位置する受信機が前記パイロット・チャネル・インジケータ信号を受信することを確実にするように高出力で送信される請求項13に記載のシステム。
- 前記アクセス・ノードが、前記フィードバック信号内の前記ビーム索引値または前記チャネル品質インジケータから、前記ビームが高出力で送信されていることを判定する請求項13に記載のシステム。
- 前記受信機が、前記フィードバック信号内の前記ビーム索引値または前記チャネル品質インジケータから、前記ビームが高出力で送信されていることを判定する請求項13に記載のシステム。
- 前記フィードバック信号が、前記アクセス・ノードから送信された前記パイロット・チャネル・インジケータ信号と、ビームが重複する位置に前記受信機が位置する場合に前記受信機が位置する空間ビームの間の2つのビーム位置の表示とから求められる2つのビーム索引値およびチャネル品質インジケータを有し、前記アクセス・ノードが、前記フィードバック信号および位置情報で受信された前記チャネル品質インジケータおよび前記ビーム索引のうちの少なくとも1つの解析に基づいて、前記アクセス・ノードから前記受信機への伝送をスケジューリングし、前記解析が、他の空間ビーム上の他の伝送との干渉を生み出すことのない、前記受信機への伝送に最も適した空間伝送ビームを求める請求項13に記載のシステム。
- 前記パイロット・チャネル・インジケータ信号データが、前記セクタ内のすべてのビーム形成された伝送上で送信される請求項18に記載のシステム。
- 前記パイロット・チャネル・インジケータ信号が、前記セル・サイト・セクタの縁部に位置する受信機が前記パイロット・チャネル・インジケータ信号を受信することを確実にするように高出力で送信される請求項18に記載のシステム。
- 前記アクセス・ノードが、前記フィードバック信号内の前記ビーム索引値または前記チャネル品質インジケータから、前記ビームが高出力で送信されていることを判定する請求項18に記載のシステム。
- 前記受信機が、前記フィードバック信号内の前記ビーム索引値または前記チャネル品質インジケータから、前記ビームが高出力で送信されていることを判定する請求項18に記載のシステム。
- 前記受信機が重複するビーム・カバレッジのエリア内に位置する場合、前記アクセス・ノードが、2つの空間ビーム上で前記受信機への伝送をスケジューリングする請求項18に記載のシステム。
- 複数の重複するビーム上で送られる前記データが、同一のスクランブリング・プロトコルを介して処理される請求項18に記載のシステム。
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