JP2015521455A - 無線システムにおけるデバイスツーデバイス(d2d)モビリティのための方法および装置 - Google Patents
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Abstract
Description
本出願は、2012年5月31日に出願された米国仮特許出願第61/653,643号、および2013年5月1日に出願された米国仮特許出願第61/818,182号の利益を主張するものであり、これらの出願の内容は参照により本明細書に組み込まれる。
1.デバイス間(D2D)通信におけるモビリティのための方法。
送信機と、
受信機および送信機と通信するプロセッサとを備える、前述の実施形態のいずれかにおける方法を実施するように構成されたWTRU。
無線リソース制御(RRC)測定報告を第1の無線送信/受信ユニット(WTRU)から受信すること、
第2のWTRUの能力の要求をD2Dサーバに送信すること、
第2のWTRUの能力の応答をD2Dサーバから受信すること、
D2D構成要求を第2のeNBに送信すること、
D2D構成応答を第2のeNBから受信すること、
直接パス開始メッセージを第2のeNBに送信すること、および
パス切替え要求をモビリティ管理エンティティ(MME)に送信することを含む方法。
Claims (20)
- 無線送信/受信ユニット(WTRU)中で使用される、デバイス間(D2D)通信を確立する方法であって、
前記WTRUによって近接検出構成をメモリに記憶するステップであって、前記近接検出構成は、少なくとも1つの発見信号プロパティに対応する測定オブジェクトを含むステップと、
前記WTRUによって近接検出測定を実施するステップと、
前記WTRUによって、前記近接検出測定に基づいて前記少なくとも1つの発見信号プロパティを検出するステップと、
前記WTRUによって、前記少なくとも1つの発見信号プロパティの検出に基づいてD2D通信を確立するステップと
を含むことを特徴とする方法。 - 前記WTRUによってeNBへの測定報告をトリガするステップをさらに含むことを特徴とする請求項1に記載の方法。
- 前記WTRUによって前記近接検出構成をeNBから受信するステップをさらに含むことを特徴とする請求項1に記載の方法。
- D2D通信を確立するステップは、少なくとも1つのRRC Connection ReconfigurationメッセージをeNBから受信することに基づくことを特徴とする請求項1に記載の方法。
- 前記少なくとも1つの発見信号プロパティはWTRUの識別またはD2D通信の識別を含むことを特徴とする請求項1に記載の方法。
- 前記近接検出測定は、受信された基準信号に対して実施されることを特徴とする請求項1に記載の方法。
- 前記WTRUによって、前記少なくとも1つの発見信号プロパティが閾値未満であることを検出するステップと、
前記WTRUによってインフラストラクチャパスへのハンドオーバを開始するステップと
をさらに含むことを特徴とする請求項1に記載の方法。 - 前記WTRUによって前記D2D通信についてのセキュリティ構成を受信するステップと、
前記WTRUによって、前記D2D通信に適用可能なセキュリティパラメータを決定するステップと、
前記WTRUによって前記D2D通信のためのセキュリティをアクティブ化するステップと
をさらに含むことを特徴とする請求項1に記載の方法。 - デバイス間(D2D)通信を確立するように構成された無線送信/受信ユニット(WTRU)であって、
近接検出構成を記憶するように構成されたメモリであって、前記近接検出構成は、少なくとも1つの発見信号プロパティに対応する測定オブジェクトを含むメモリと、
近接検出測定を実施するように構成され、前記近接検出測定に基づいて前記少なくとも1つの発見信号プロパティを検出するようにさらに構成された受信機と、
前記少なくとも1つの発見信号プロパティの検出に基づいてD2D通信を確立するように構成された送信機と
を備えることを特徴とするWTRU。 - eNBへの測定報告をトリガするように構成された前記送信機をさらに備えることを特徴とする請求項9に記載のWTRU。
- 前記近接検出構成をeNBから受信するように構成された前記受信機をさらに備えることを特徴とする請求項9に記載のWTRU。
- D2D通信を確立することは、少なくとも1つのRRC Connection ReconfigurationメッセージをeNBから受信することに基づくことを特徴とする請求項9に記載のWTRU。
- 前記少なくとも1つの発見信号プロパティはWTRUの識別またはD2D通信の識別を含むことを特徴とする請求項9に記載のWTRU。
- 前記近接検出測定は、受信された基準信号に対して実施されることを特徴とする請求項9に記載のWTRU。
- 前記少なくとも1つの発見信号プロパティが閾値未満であることを検出するように構成された前記受信機と、
インフラストラクチャパスへのハンドオーバを開始するように構成された前記送信機と
をさらに備えることを特徴とする請求項9に記載のWTRU。 - 前記D2D通信についてのセキュリティ構成を受信するように構成された前記受信機と、
前記D2D通信に適用可能なセキュリティパラメータを決定するように構成され、前記D2D通信のためのセキュリティを前記WTRUによってアクティブ化するようにさらに構成されたプロセッサと
をさらに備えることを特徴とする請求項9に記載のWTRU。 - デバイス間(D2D)通信におけるリンク障害処理の方法であって、
WTRUによってD2Dリンク障害メッセージを送るステップであって、前記WTRUは前記D2D通信において接続されているステップと、
前記WTRUによって前記D2D通信における全ての通信を停止するステップと、
前記WTRUによって前記D2D通信を切断するステップと
を含むことを特徴とする方法。 - 前記リンク障害はインフラストラクチャ無線リンク上におけるものであることを特徴とする請求項17に記載の方法。
- 前記リンク障害は直接パス無線リンク上におけるものであることを特徴とする請求項17に記載の方法。
- 前記WTRUによってRRC Connection Establishmentメッセージを送って前記D2D通信を再確立するステップをさらに含むことを特徴とする請求項17に記載の方法。
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US201261653643P | 2012-05-31 | 2012-05-31 | |
US61/653,643 | 2012-05-31 | ||
US201361818182P | 2013-05-01 | 2013-05-01 | |
US61/818,182 | 2013-05-01 | ||
PCT/US2013/043408 WO2013181421A2 (en) | 2012-05-31 | 2013-05-30 | Method and apparatus for device-to-device (d2d) mobility in wireless systems |
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EP2856836A2 (en) | 2015-04-08 |
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