JP2009528791A - ハイブリッド光ファイバ同軸ケーブルネットワークに利用可能な合成パワー余裕度を判定する装置、方法、およびコンピュータ読取可能な記録媒体 - Google Patents
ハイブリッド光ファイバ同軸ケーブルネットワークに利用可能な合成パワー余裕度を判定する装置、方法、およびコンピュータ読取可能な記録媒体 Download PDFInfo
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Abstract
Description
誤り率測定値が誤り率閾値を超える場合、パワー余裕度は、誤り率測定値に関するパワー測定値に基づき判定されてもよい。
受信機は、第2ネットワークからの第2周波数f2の第2信号を、第1周波数f1および試験周波数ftと同時に受信するように構成されてもよい。
Claims (18)
- ネットワーク測定装置であって、前記ネットワーク測定装置は、
第1ネットワーク要素からの第1周波数f1の第1信号と、試験ネットワーク要素からの試験データを含む試験周波数ftの試験信号とを同時に受信する受信機と、
前記試験信号の誤り率を測定することによって、誤り率測定値を提供するエラー監視ユニットと、
受信した前記第1信号のパワーを測定することによって、パワー測定値を提供するパワー監視ユニットと
を備える、ネットワーク測定装置。 - 前記ネットワーク測定装置は更に、前記誤り率測定値が誤り率閾値を超えるか否か判定するマイクロプロセッサを備える、請求項1記載のネットワーク測定装置。
- 前記誤り率測定値が前記誤り率閾値を超える場合、パワー余裕度は、前記誤り率測定値に関する前記パワー測定値に基づき判定される、請求項2記載のネットワーク測定装置。
- 前記パワー余裕度は、前記ネットワークのベースラインパワーレベルの推定値と、前記誤り率測定値が前記誤り率閾値を超える場合の前記パワー測定値との間の差に基づき判定される、請求項3記載のネットワーク測定装置。
- 前記受信機は、第2ネットワーク要素からの第2周波数f2の第2信号を、前記第1信号および前記第2信号と同時に受信する、請求項2記載のネットワーク測定装置。
- 前記マイクロプロセッサは、
前記第1ネットワーク要素として或るネットワーク要素を選択し、
前記第2ネットワーク要素として別のネットワーク要素を選択し、
前記試験ネットワーク要素として第3ネットワーク要素を選択し、
更に前記マイクロプロセッサは、
前記第1周波数f1で前記第1信号を送信するように前記第1ネットワーク要素に指令し、
前記第2周波数f2で前記第2信号を送信するように前記第2ネットワーク要素に指令し、および
前記試験周波数ftで前記試験信号を送信するように前記試験ネットワーク要素に指令し、
その結果として前記受信機は、前記第1通信信号、前記第2通信信号、および前記試験信号を同時に受信する、請求項5記載のネットワーク測定装置。 - 前記第1周波数f1と前記第2周波数f2は、第1周波数f1と第2周波数f2の間の相互作用が前記ネットワーク内の送信レーザにおいて前記試験周波数ftの相互変調擾乱を生じないように選択される、請求項6記載のネットワーク測定装置。
- 前記マイクロプロセッサは、前記誤り率測定値が前記誤り率閾値を超えない場合、送信パワーレベルを増加させるように前記第1ネットワーク要素と前記第2ネットワーク要素のうちの少なくとも一つに指令する、請求項6記載のネットワーク測定装置。
- ネットワークにおけるパワー余裕度の判定方法であって、前記判定方法は、
第1周波数f1で第1信号を送信する第1ネットワーク要素を選択し、且つ試験周波数ftで試験信号を送信する試験ネットワーク要素を選択する手順と、
前記第1信号が前記試験信号と同時に受信されるように、前記第1信号を前記第1周波数f1で送信するように前記第1ネットワーク要素に指令する手順と、
前記試験信号の誤り率を測定することによって誤り率測定値を得、その結果、前記誤り率測定値が誤り率閾値を超えるか否か判定する手順と、
前記誤り率測定値が前記誤り率閾値を超える場合、前記ネットワーク上の信号の前記パワーレベルを測定することによってパワーレベル測定値を得る手順と、
前記パワーレベル測定値に基づき前記パワー余裕度を判定する手順と
を含む、判定方法。 - 前記判定方法は更に、前記誤り率測定値が前記誤り率閾値を超えない場合、前記第1ネットワーク要素の送信パワーレベルを増加する手順を含む、請求項9記載の判定方法。
- 前記判定方法は更に、
第2周波数f2で第2信号を送信する第2ネットワーク要素を選択する手順と、
前記第1信号および前記試験信号と同時に受信される第2信号を、前記第2周波数f2で送信するように前記第2ネットワーク要素に指令する手順と
を含む、請求項9記載の判定方法。 - 前記第1周波数f1と前記第2周波数f2は、第1周波数f1と第2周波数f2の間の相互作用が前記ネットワークの送信レーザにおいて前記試験周波数ftの相互変調擾乱を生じないように選択される、請求項11記載の判定方法。
- 前記判定方法は更に、前記誤り率測定値が誤り率閾値を超えない場合、前記第1ネットワーク要素と前記第2ネットワーク要素のうちの少なくとも一つの送信パワーレベルを増加する手順を含む、請求項11記載の判定方法。
- コンピュータ読取可能な記録媒体であって、前記記録媒体はネットワーク内のパワー余裕度を判定するために、
第1周波数f1で第1信号を送信する第1ネットワーク要素を選択し、且つ試験周波数ftで試験信号を送信する試験ネットワーク要素を選択する手順と、
前記第1信号が前記試験信号と同時に受信されるように、前記第1信号を前記第1周波数で送信するように前記第1ネットワーク要素に指令する手順と、
前記試験信号の誤り率を測定することによって誤り率測定値を得て、前記誤り率測定値が誤り率閾値を超えるか否か判定する手順と、
前記誤り率測定値が前記誤り率閾値を超える場合、前記ネットワーク上の信号のパワーレベルを測定してパワーレベル測定値を得る手順と、
前記パワーレベル測定値に基づき、前記ネットワークにおける前記パワー余裕度を判定する手順と
をコンピュータに実行させるためのプログラムを記録した、コンピュータ読取可能な記録媒体。 - 前記記録媒体は更に、前記誤り率測定値が前記誤り率閾値を超えない場合、前記第1ネットワーク要素に送信パワーレベルを増加させる手順を前記コンピュータに実行させるためのプログラムを記録した、請求項14記載のコンピュータ読取可能な記録媒体。
- 前記記録媒体は更に、
第2周波数f2で第2信号を送信する第2ネットワーク要素を選択する手順と、
前記第1信号および前記試験信号と同時に受信される第2信号を、前記第2周波数で送信するように前記第2ネットワーク要素に指令する手順と
を前記コンピュータに実行させるためのプログラムを記録した、請求項14記載のコンピュータ読取可能な記録媒体。 - 前記第1周波数f1と前記第2周波数f2は、第1周波数f1と第2周波数f2の間の相互作用が前記ネットワークの送信レーザにおいて前記試験周波数ftの相互変調擾乱を生じないように選択される、請求項16記載のコンピュータ読取可能な記録媒体。
- 前記記録媒体は更に、前記誤り率測定値が誤り率閾値を超えない場合、前記第1ネットワーク要素と前記第2ネットワーク要素のうちの少なくとも一つの送信パワーレベルを増加する手順を前記コンピュータに実行させるためのプログラムを記録した、請求項16記載のコンピュータ読取可能な記録媒体。
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US11/551,014 US20070245177A1 (en) | 2006-03-24 | 2006-10-19 | Method and apparatus for determining the total power margin available for an hfc network |
US11/551,014 | 2006-10-19 | ||
PCT/US2007/062786 WO2007112167A2 (en) | 2006-03-24 | 2007-02-26 | Method and apparatus for determining the total power margin available for an hfc network |
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- 2007-02-26 DE DE112007000694.3T patent/DE112007000694B4/de active Active
- 2007-02-26 WO PCT/US2007/062786 patent/WO2007112167A2/en active Application Filing
- 2007-02-26 CA CA2646104A patent/CA2646104C/en active Active
- 2007-02-26 JP JP2008557457A patent/JP4824781B2/ja active Active
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Also Published As
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WO2007112167A2 (en) | 2007-10-04 |
GB0815582D0 (en) | 2008-10-01 |
GB2450019B (en) | 2011-12-07 |
CA2646104C (en) | 2016-07-12 |
GB2450019A (en) | 2008-12-10 |
WO2007112167A3 (en) | 2008-09-12 |
DE112007000694B4 (de) | 2014-11-27 |
JP4824781B2 (ja) | 2011-11-30 |
CA2646104A1 (en) | 2007-10-04 |
DE112007000694T5 (de) | 2009-02-12 |
US20070245177A1 (en) | 2007-10-18 |
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