JP6437933B2 - 端末間直接通信のための同期情報受信方法およびそのための装置 - Google Patents
端末間直接通信のための同期情報受信方法およびそのための装置 Download PDFInfo
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Description
以下、MIMOシステムについて説明する。MIMO(Multiple-Input Multiple-Output(多入力多出力))は、複数の送信アンテナおよび複数の受信アンテナを用いる方法であり、この方法によってデータの送受信効率を向上させることができる。すなわち、無線通信システムの送信端もしくは受信端で複数のアンテナを用いることによって、容量を増大させ、性能を向上させることができる。以下、本文献ではMIMOを‘マルチアンテナ(multi-antenna)’と呼ぶことができる。
場合によっては、端末が下りリンク測定を行う必要がある。例えば、基地局が端末のハンドオーバ動作もしくはセル間干渉調整などをサポートするためには、端末が下りリンク測定を行い、これを基地局に報告する必要がある。下りリンク測定には、RLM(Radio Link Monitoring)のための測定、チャネル状態情報(Channel State Information;CSI)報告のための測定、RRM(Radio Resource Management)測定などの様々な測定方式および測定値がある。
以下、参照信号について説明する。
基地局が端末にCSI−RS設定(configuration)を知らせる方式として、次の2方式を考慮することができる。
Claims (8)
- 無線通信システムにおいて動作する端末が端末間(D2D)リンクをサポートする方法であって、
サービングセルから基準セルの識別子を有するD2D同期設定情報を受信するステップであって、前記基準セルは隣接セルのうちの1つであるステップと、
前記D2D同期設定情報に基づいて、前記基準セルの同期リソースを取得するステップと、
前記基準セルの同期リソースに基づいて、前記D2Dリンクを介してD2D信号を受信するステップと、を有し、
前記D2D信号は、前記基準セルの同期リソースに対する所定の範囲内で受信される、方法。 - 前記D2D同期設定情報は、前記D2Dリンクに用いられるオフセット情報を有する、請求項1に記載の方法。
- 前記オフセット情報は、前記D2Dリンクのために用いられるサブフレームを示す、請求項2に記載の方法。
- 前記オフセット情報が示すサブフレームは、前記D2Dリンクのために用いられる開始サブフレームに該当する、請求項3に記載の方法。
- 無線通信システムにおいて端末間(D2D)リンクをサポートする端末であって、
サービングセルから基準セルの識別子を有するD2D同期設定情報を受信するRFモジュールであって、前記基準セルは隣接セルのうちの1つであるRFモジュールと、
前記RFモジュールに接続され、
前記D2D同期設定情報に基づいて、前記基準セルの同期リソースを取得し、
前記基準セルの同期リソースに基づいて、前記D2Dリンクを介してD2D信号を受信するように構成されたプロセッサと、を備え、
前記D2D信号は、前記基準セルの同期リソースに対する所定の範囲内で受信される、端末。 - 前記D2D同期設定情報は、前記D2Dリンクに用いられるオフセット情報を有する、請求項5に記載の端末。
- 前記オフセット情報は、前記D2Dリンクのために用いられるサブフレームを示す、請求項6に記載の端末。
- 前記オフセット情報が示すサブフレームは、前記D2Dリンクのために用いられる開始サブフレームに該当する、請求項7に記載の端末。
Applications Claiming Priority (11)
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US61/776,769 | 2013-03-11 | ||
US201361815739P | 2013-04-25 | 2013-04-25 | |
US61/815,739 | 2013-04-25 | ||
US201361836142P | 2013-06-17 | 2013-06-17 | |
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PCT/KR2014/001989 WO2014142505A1 (ko) | 2013-03-11 | 2014-03-11 | 단말간 직접 통신을 위한 동기 정보 수신 방법 및 이를 위한 장치 |
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JP2016511611A JP2016511611A (ja) | 2016-04-14 |
JP6437933B2 true JP6437933B2 (ja) | 2018-12-12 |
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US (1) | US9913232B2 (ja) |
EP (1) | EP2975792B1 (ja) |
JP (1) | JP6437933B2 (ja) |
KR (1) | KR102214072B1 (ja) |
CN (2) | CN108521391B (ja) |
RU (1) | RU2612408C1 (ja) |
WO (1) | WO2014142505A1 (ja) |
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