JP2014030235A - 遠隔送信システム - Google Patents
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Abstract
【解決手段】仮想広帯域送信ユニットは、遠隔の報道場所における生のメディア送信信号から、複数の無線モデムを介する生の一斉アップロードのための複数のデータストリームを生成するストリーム生成器と、それぞれが複数の無線モデムの1つと関連付けられている複数のモデムマネージャと、複数の無線モデムのアップロードチャネル品質と監視されたパフォーマンスのうち少なくとも1つに基づいて一斉アップロードのために無線モデム間でデータストリームのパケットを不公平に分散させることによって、無線モデムの選択された組を通じてデータストリームのアップロードを制御する送信制御手段と、無線モデム間のパフォーマンス傾向を検出すること、いずれかのモデムマネージャに、関連する無線モデムの送信レートを下げるまたは停止するように指示すること、のうち少なくとも1つを実行するトラフィック分析器と、を備える。
【選択図】図3
Description
Claims (17)
- 仮想広帯域送信ユニットであって、
遠隔の報道場所における生のメディア送信信号から、複数の無線モデムを介する生の一斉アップロードのための複数のデータストリームを生成するストリーム生成器と、
それぞれが前記複数の無線モデムの1つと関連付けられている複数のモデムマネージャと、
前記複数の無線モデムのアップロードチャネル品質と前記複数の無線モデムの監視されたパフォーマンスのうち少なくとも1つに基づいて前記一斉アップロードのために前記複数の無線モデムの間で前記複数のデータストリームのパケットを不公平に分散させることによって、前記複数の無線モデムの選択された組を通じて前記複数のデータストリームのアップロードを制御する送信制御手段と、を備え、
前記一斉アップロードは、前記複数の無線モデムのアップロード容量の合計が生のメディア送信を円滑に行ううえで十分な連結帯域幅となる仮想広帯域アップロード接続を作成し、
前記仮想広帯域アップロード接続の連結アップロード容量は、ラインオブサイト(LOS)衛星接続またはLOSマイクロ波接続のアップロード容量に近似し、
前記複数のデータストリームは、1つ以上のインターネット接続を介して前記遠隔の報道場所から伝送され、
前記仮想広帯域送信ユニットは、さらに、
(a)前記複数の無線モデムの間のパフォーマンス傾向を検出すること、(b)いずれかのモデムマネージャに、関連する無線モデムの送信レートを下げるように指示すること、(c)いずれかのモデムマネージャに、関連する無線モデムを停止するように指示すること、のうち少なくとも1つを実行するトラフィック分析器、を備え、
前記複数の無線モデムのそれぞれが前記遠隔の報道場所からアクセス可能な無線通信ネットワークに関連付けられ、前記選択された組は少なくとも1つの無線通信ネットワークに関連付けられており、
前記仮想広帯域送信ユニットは、1つ以上のセルラーネットワーク、1つ以上のWiFiネットワーク、1つ以上のWiMaxネットワークおよび1つ以上の衛星ネットワークのうちの1つ以上を介して、インターネットに接続され、
前記仮想広帯域送信ユニットは、1つ以上のネットワーク事業者によって送信される複数のチャネルを介して前記遠隔の報道場所から前記生のメディア送信信号をアップロードする、
仮想広帯域送信ユニット。 - 前記トラフィック分析器は、
前記仮想広帯域送信ユニットの設定可能なストリームプロセッサの設定を決定すること、
前記仮想広帯域送信ユニットの設定可能なインターネットプロトコルストリームプロセッサの設定を向上させること、
全体的なパフォーマンス傾向を識別すること、
いずれかのモデムマネージャに、関連する無線モデムの送信レートを高めるように指示すること、
前記複数のモデムマネージャの間で送信レートのバランスをとること、
いくつかのモデムマネージャに、関連する無線モデムの送信レートを下げるように指示するとともに、全体的なスループットの予測される低下を埋め合わせるために別のモデムマネージャに、関連する無線モデムの送信レートを高めるように指示すること、
前記複数の無線モデムによる複数の接続の品質およびフローを最適化し、これにより前記仮想広帯域アップロード接続を作成すること、
のうち少なくとも1つを実行する、
請求項1に記載の仮想広帯域送信ユニット。 - 遠隔地報道の方法であって、
遠隔の報道場所において生成された生のメディア送信信号の映像データを、それぞれが少なくとも1つの無線通信ネットワークの1つと関連付けられている複数の無線モデムを介する生の一斉アップロードのための複数のデータストリームのデータパケットに編成するステップと、
前記複数の無線モデムのアップロードチャネル品質と前記複数の無線モデムの監視されたパフォーマンスのうち少なくとも1つに基づいて前記一斉アップロードのために前記複数の無線モデムの間で前記複数のデータストリームのパケットを不公平に分散させることによって、前記データパケットを、前記少なくとも1つの無線通信ネットワークのうち前記遠隔の報道場所からアクセス可能な無線通信ネットワークに関連付けられた無線モデムの組を通じて放送局にアップロードするステップと、
と、
前記少なくとも1つの無線通信ネットワークのトラフィックと関連付けて前記編成するステップと前記アップロードするステップの動作を調整するステップと、
を含み、
前記一斉アップロードは、前記複数の無線モデムのアップロード容量の合計が生のメディア送信を円滑に行ううえで十分な連結帯域幅となる仮想広帯域アップロード接続を作成し、
前記仮想広帯域アップロード接続の連結アップロード容量は、ラインオブサイト(LOS)衛星接続またはLOSマイクロ波接続のアップロード容量に近似し、
前記複数のデータストリームは、1つ以上のインターネット接続を介して前記遠隔の報道場所から伝送され、
前記方法は、さらに、
(a)前記複数の無線モデムの間のパフォーマンス傾向を検出すること、(b)いずれかのモデムマネージャに、関連する無線モデムの送信レートを下げるように指示すること、(c)いずれかのモデムマネージャに、関連する無線モデムを停止するように指示すること、のうち少なくとも1つを実行するトラフィック分析のステップ、を含み、
前記複数の無線モデムのそれぞれが前記遠隔の報道場所からアクセス可能な無線通信ネットワークに関連付けられ、前記選択された組は少なくとも1つの無線通信ネットワークに関連付けられており、
前記仮想広帯域アップロード接続は、1つ以上のセルラーネットワーク、1つ以上のWiFiネットワーク、1つ以上のWiMaxネットワークおよび1つ以上の衛星ネットワークのうちの1つ以上を介して、インターネットに接続され、
前記仮想広帯域アップロード接続は、1つ以上のネットワーク事業者によって送信される複数のチャネルを介して前記遠隔の報道場所から前記生のメディア送信信号をアップロードする、
方法。 - 前記トラフィック分析のステップは、
仮想広帯域送信ユニットの設定可能なストリームプロセッサの設定を決定すること、
前記仮想広帯域送信ユニットの設定可能なインターネットプロトコルストリームプロセッサの設定を向上させること、
全体的なパフォーマンス傾向を識別すること、
いずれかのモデムマネージャに、関連する無線モデムの送信レートを高めるように指示すること、
前記複数のモデムマネージャの間で送信レートのバランスをとること、
いくつかのモデムマネージャに、関連する無線モデムの送信レートを下げるように指示するとともに、全体的なスループットの予測される低下を埋め合わせるために別のモデムマネージャに、関連する無線モデムの送信レートを高めるように指示すること、
前記複数の無線モデムによる複数の接続の品質およびフローを最適化し、これにより前記仮想広帯域アップロード接続を作成すること、
のうち少なくとも1つを実行する、
請求項3に記載の方法。 - 前記生のメディア送信信号が、映像データと音声データのうちの少なくとも一方を備えている、請求項1に記載の仮想広帯域送信ユニット。
- 前記データストリームをエンコードするビデオエンコーダへの接続をさらに備えている、請求項1に記載の仮想広帯域送信ユニット。
- 前記少なくとも1つの無線通信ネットワークが、携帯電話/モバイルセルラーネットワーク、WiFiネットワーク、WiMaxネットワーク、衛星ネットワーク、のうちの少なくとも1つである、請求項1に記載の仮想広帯域送信ユニット。
- 前記ストリーム生成器が、データパケット生成器を備えており、前記データパケット生成器が、
前記データストリームにFEC符号を提供する前方誤り訂正(FEC)プロセッサ、
前記データストリームから番号付きデータパケットを生成するパケットエンカプスレータ、
前記データパケットをシャッフルするインターリーバ、
のうちの少なくとも1つを備えている、
請求項1に記載の仮想広帯域送信ユニット。 - 前記パケット生成器から前記データパケットを受け取るキューバッファと、再送できるように前記パケットのコピーを格納する再送キューと、
をさらに備えている、請求項8に記載の仮想広帯域送信ユニット。 - 前記複数のデータストリームを送信するための前記複数の無線モデム、
をさらに備えている、請求項1に記載の仮想広帯域送信ユニット。 - 前記複数のデータストリームの適時性および品質のうちの少なくとも一方に関するフィードバックを受信するためのバックチャネル、
をさらに備えており、
前記フィードバックが、欠落データパケット、再構築されたデータパケット、受信されたパケットのシリアル番号およびタイムスタンプ、データの再送の要求、のうちの少なくとも1つを備え、
前記送信制御手段が、
再送キューを検索して、少なくとも1つの前記欠落データパケットのコピーを特定し、再送できるように、検出されたコピーを転送する手段、
を備えている、
請求項1に記載の仮想広帯域送信ユニット。 - 前記トラフィック分析器が、
前記フィードバックを分析し、前記ストリーム生成器の構成要素の設定を前記分析に応じて調整し、
前記構成要素が、ビデオエンコーダ、FECプロセッサ、パケットエンカプスレータ、インターリーバ、キューバッファ、モデムマネージャ、のうちの少なくとも1つを備えている、請求項11に記載の仮想広帯域送信ユニット。 - 前記少なくとも1つの無線通信ネットワークが、少なくとも2つの異なるセルラーネットワークである、請求項3に記載の方法。
- 前記少なくとも2つの異なるセルラーネットワークが、少なくとも2つの異なる携帯電話技術を使用する、請求項13に記載の方法。
- 前記アップロードするステップの成功に関するフィードバックを受信するステップと、
前記フィードバックを分析するステップと、をさらに含み、
前記調整するステップは、前記編成および前記複数のモデムの動作設定を、前記分析の結果に応じて変更するステップと、を含んでいる、請求項3に記載の方法。 - FEC符号を有するパケットを生成するステップと、
前記アップロードするステップの前に前記パケットの順序をインターリーブするステップと、
少なくとも1つの不適切に受信された前記データパケットの再送要求を受信するステップと、
前記少なくとも1つの不適切に受信されたデータパケットを再送するステップと、
のうち少なくとも1つをさらに含んでいる、請求項3に記載の方法。 - 前記少なくとも1つの無線通信ネットワークが、携帯電話/モバイルセルラーネットワーク、WiFiネットワーク、WiMaxネットワーク、衛星ネットワーク、のうちの少なくとも1つである、請求項3に記載の方法。
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