JP5951894B2 - LTEeNodeBの復帰機能 - Google Patents
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Description
本願は、2012年9月8日出願の“Wake-Up Functionality For An LTE eNodeB(LTE eNodeBの復帰機能)”と題される米国特許出願第13/672,548号に対する優先権を主張する。米国特許出願第13/672,548号は、2012年7月2日出願の“Advanced Wireless Communication Systems and Techniques(進歩した無線通信システムおよび技術)”と題される米国特許仮出願第61/667,325号に対する優先権を主張している。両開示を参照することにより、その全体を本明細書に援用する。
Claims (21)
- 無線ネットワーク内の拡張ノードB(Evolved Node B:eNB)において電力消費を低減する方法であって、
ユーザーイクイップメント(User Equipment:UE)に対して、復帰プロシージャの1以上のパラメータを送信するステップと、
高電力状態から低電力状態に入るステップと、
少なくとも部分的に前記1以上のパラメータに基づく復帰信号の受信をモニタリングするステップと、
前記復帰信号の受信に応答して、高電力状態に入るステップと、
前記復帰信号の受信に応答して、前記UEに接続確立信号を送信するステップと、
を含み、
前記復帰プロシージャの前記1以上のパラメータは、前記復帰信号に用いられるデジタルシーケンスを含み、また、リスニング間隔の長さを有し、
当該リスニング間隔は、リスニング長を含む少なくとも1つのリスニング期間と、少なくとも1つの非リスニング期間とを含む、
方法。 - 前記復帰信号は、前記eNBによってランダムアクセスチャネル(Random Access Channel:RACH)上で受信される、
請求項1に記載の方法。 - 前記eNBは、継続的に前記復帰信号をモニタリングし、前記復帰信号は、直交周波数分割多重(Orthogonal Frequency Division Multiplexing:OFDM)シンボル2つ分の長さを有する、
請求項1に記載の方法。 - 前記復帰信号の長さは、少なくとも前記リスニング長である、
請求項1に記載の方法。 - 前記復帰信号の長さは、少なくとも前記リスニング間隔の長さである、
請求項1に記載の方法。 - 前記復帰信号の長さは、前記リスニング長よりも短い、
請求項1に記載の方法。 - 前記復帰プロシージャの前記1以上のパラメータは、前記リスニング期間のタイミングを含む、
請求項1に記載の方法。 - ユーザーイクイップメント(UE)であって、
復帰プロシージャの1以上のパラメータを受信する受信回路と、
当該UEは拡張ノードB(Evolved Node B:eNB)に接続すべきであると判定する処理回路と、
前記判定に応答して、少なくとも部分的に前記1以上のパラメータに基づく復帰信号を前記eNBに送信する送信回路と、
を備え、
前記復帰信号は、前記eNBを低電力状態から高電力状態に入らせるように構成され、
前記受信回路は更に、接続確立プロシージャに関する送信を受信し、
前記復帰プロシージャの前記1以上のパラメータは、前記UEによって前記復帰信号に用いられるデジタルシーケンスを含み、また、リスニング間隔の長さを有し、
当該リスニング間隔は、リスニング長を含むリスニング期間と、非リスニング期間とを含む、
ユーザーイクイップメント(UE)。 - 前記送信回路は更に、前記復帰信号をランダムアクセスチャネルで送信する、
請求項8に記載のUE。 - 前記復帰信号の長さは、少なくとも前記リスニング長の長さである、
請求項8に記載のUE。 - 前記復帰信号の長さは、少なくとも前記リスニング間隔の長さである、
請求項8に記載のUE。 - 前記復帰信号の長さは、前記リスニング長よりも短い、
請求項8に記載のUE。 - 前記復帰プロシージャの前記1以上のパラメータは、前記リスニング期間のタイミングを含む、
請求項8に記載のUE。 - ホーム拡張ノードB(Home Evolved Node B:HeNB)であって、
ユーザーイクイップメント(UE)に対して、復帰プロシージャの1以上のパラメータを送信する送信部と、
少なくとも部分的に前記復帰プロシージャの前記1以上のパラメータに基づく復帰信号を受信する受信部と、
前記復帰プロシージャの前記1以上のパラメータの送信後に低電力状態に入り、前記受信部により前記復帰信号が受信されたときに、前記低電力状態から高電力状態に入る電力制御部と、
を備え、
前記送信部は更に、前記HeNBが前記高電力状態に入ったあとに、前記UEに接続確立信号を送信し、
前記復帰プロシージャの前記1以上のパラメータは、前記復帰信号に用いられるデジタルシーケンスを含み、また、リスニング間隔の長さを有し、
当該リスニング間隔は、リスニング長を含むリスニング期間と、非リスニング期間とを含む、
HeNB。 - 低電力HeNBである、請求項14に記載のHeNB。
- 前記受信部は、継続的に前記復帰信号をモニタリングする、
請求項14に記載のHeNB。 - 前記受信部は、前記復帰信号をランダムアクセスチャネルで受信する、
請求項14に記載のHeNB。 - 前記復帰信号の長さは、少なくとも前記リスニング長である、
請求項14に記載のHeNB。 - 前記復帰信号の長さは、少なくとも前記リスニング間隔の長さである、
請求項14に記載のHeNB。 - 前記復帰信号の長さは、前記リスニング長よりも短い、
請求項14に記載のHeNB。 - 前記復帰プロシージャの前記1以上のパラメータは、前記リスニング期間のタイミングを含む、
請求項14に記載のHeNB。
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US13/672,548 US20140003312A1 (en) | 2012-07-02 | 2012-11-08 | Wake-up functionality for an lte enodeb |
PCT/US2013/044610 WO2014007938A2 (en) | 2012-07-02 | 2013-06-06 | Wake-up functionality for an lte enodeb |
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