JP2020120378A - 無線通信の半永続的スケジューリングのためのシステム及び方法 - Google Patents
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Abstract
Description
定められている。疑似ランダムシーケンス生成器は、各サブフレームの始めに次式により
開始される。
・PDSCH REマッピングのためのゼロ電力CSI−RS(channel state information−reference signal)リソース
・PDSCH REマッピングのためのPDSCH開始位置
・PDSCH REマッピングのためのCSI−RSリソース構成同一性
所与のサービングセルに対してTM10で構成されたUE102は、UE及び所与のサービングセルを対象としたDCIフォーマット1Aを有する検出されたPDCCH/EPDCCHに従ってPDSCHを復号化するために、PDSCH REマッピング及び地理的に同一なPDSCHアンテナポートを決定する上位レイヤシグナリングにより、表2の4個のパラメータセットから選択されたパラメータセットにより構成され得る。UE102は、構成されたパラメータセットを用いて、DCIフォーマット1Aを有する検出されたPDCCH/EPDCCHに対応するPDSCH、及びDCIフォーマット1Aを有するPDCCH/EPDCCHの中で示されたSPS有効化に関連する対応するPDCCHを有しないPDSCHを復号化するために、PDSCH REマッピング及び地理的に同一なPDSCHアンテナポートを決定しても良い。
本開示は、SPS PDSCH送信(つまり、PDCCHを有しないPDSCH)のためのDM−RSの使用方法を提供する。留意すべきことに、用語「PDCCH」は、ここでは、レガシーPDCCH又はEPDCCHを包含する。
サブフレーム内に対応するPDCCH/EPDCCHを有しないPDSCHでは、
サブフレーム内に対応するPDCCH/EPDCCHを有しないPDSCHでは、
サブフレーム内に対応するPDCCH/EPDCCHを有しないPDSCHでは、
eNBは、(SPS開始を含む)全てのSPS送信について独立に{nSCID}又は{nSCID及び/又は
以下の例は、更なる実施形態に関連する。
Claims (20)
- 装置であって、
少なくとも1つの基地局から第1のサブフレーム内で、SPS(semi−persistent scheduling)開始に対応するPDCCH/EPDCCH(physical downlink control channel又はenhanced physical downlink control channel)を受信する手段であって、前記PDCCH/EPDCCHはnSCIDの値を伝達する、手段と、
前記SPS開始に基づき、第2のサブフレーム内のダウンリンク(DL)割り当てを構成する手段であって、前記装置は送信モード10(TM10)のために構成される、手段と、
前記少なくとも1つの基地局から前記第2のサブフレーム内で、ユーザ機器(UE)固有参照信号を受信する手段であって、前記UE固有参照信号は、前記第2のサブフレーム内のSPS PDSCH(SPS physical downlink shared channel)に関連付けられ、前記SPS PDSCHは対応するPDCCH/EPDCCHを有しない、手段と、
前記第1のサブフレーム内のSPS開始に対応する前記PDCCH/EPDCCHから得た前記nSCIDの値を用いて、前記第2のサブフレーム内の前記UE固有参照信号に対応する参照信号シーケンスを決定する手段と、
前記UE固有参照信号及び前記参照信号シーケンスに基づき、前記SPS PDSCHを処理する手段と、
を有する装置。 - 前記装置は、CoMP(coordinated multipoint)送信又は受信のために構成され、
前記SPS PDSCH及びSPS開始に対応する前記PDCCH/EPDCCHのうちの1又は複数はCoMP送信を有する、請求項1に記載の装置。 - ダウンリンク制御情報(DCI)フォーマットを監視する手段であって、前記nSCIDの値を伝達する前記PDCCH/EPDCCHは、DCIフォーマット2Dを有するPDCCH/EPDCCHである、手段、
を更に有する請求項1に記載の装置。 - 前記参照信号シーケンスを決定する手段は、仮想セル識別子n(nSCID)ID及びnSCIDの値に基づき、前記参照信号シーケンスを生成する手段を有する、請求項1に記載の装置。
- 前記n(nSCID)IDは、物理層より上の層におけるシグナリングにより構成される、請求項4に記載の装置。
- PDSCHリソースエレメント(RE)マッピング及び地理的同一指示子(PQI)の値により示される送信パラメータセットに基づき前記SPS PDSCHを処理する手段であって、前記PQIの値は、SPS開始に対応する前記PDCCH/EPDCCHの中で伝達される、手段、を更に有する請求項1に記載の装置。
- PDSCHリソースエレメント(RE)マッピング及び地理的同一指示子(PQI)の値により示される送信パラメータセットに基づき前記SPS PDSCHを処理する手段であって、前記PQIの値は、RRCレイヤシグナリングに基づき構成される、手段、を更に有する請求項1に記載の装置。
- 無線通信のためのユーザ機器(UE)による方法であって、
少なくとも1つの基地局から第1のサブフレーム内で、SPS(semi−persistent scheduling)開始に対応するPDCCH/EPDCCH(physical downlink control channel又はenhanced physical downlink control channel)を受信するステップであって、前記PDCCH/EPDCCHはnSCIDの値を伝達する、ステップと、
前記SPS開始に基づき、第2のサブフレーム内のダウンリンク(DL)割り当てを構成するステップであって、前記UEは送信モード10(TM10)のために構成される、ステップと、
前記少なくとも1つの基地局から前記第2のサブフレーム内で、UE固有参照信号を受信するステップであって、前記UE固有参照信号は、前記第2のサブフレーム内のSPS PDSCH(SPS physical downlink shared channel)に関連付けられ、前記SPS PDSCHは対応するPDCCH/EPDCCHを有しない、ステップと、
前記第1のサブフレーム内のSPS開始に対応する前記PDCCH/EPDCCHから得た前記nSCIDの値を用いて、前記第2のサブフレーム内の前記UE固有参照信号に対応する参照信号シーケンスを決定するステップと、
前記UE固有参照信号及び前記参照信号シーケンスに基づき、前記SPS PDSCHを処理するステップと、
を有する方法。 - 前記UEは、CoMP(coordinated multipoint)送信又は受信のために構成され、前記SPS PDSCH及びSPS開始に対応する前記PDCCH/EPDCCHのうちの1又は複数はCoMP送信を有する、請求項8に記載の方法。
- ダウンリンク制御情報(DCI)フォーマットを監視するステップであって、前記nSCIDの値を伝達する前記PDCCH/EPDCCHは、DCIフォーマット2Dを有するPDCCH/EPDCCHである、ステップ、
を更に有する請求項8に記載の方法。 - 前記参照信号シーケンスを決定するステップは、仮想セル識別子n(nSCID)ID及びnSCIDの値に基づき、前記参照信号シーケンスを生成するステップを有する、請求項8に記載の方法。
- 前記n(nSCID)IDは、物理層より上の層におけるシグナリングにより構成される、請求項11に記載の方法。
- PDSCHリソースエレメント(RE)マッピング及び地理的同一指示子(PQI)の値により示される送信パラメータセットに基づき前記SPS PDSCHを処理するステップであって、前記PQIの値は、SPS開始に対応する前記PDCCH/EPDCCHの中で伝達される、ステップ、を更に有する請求項8に記載の方法。
- PDSCHリソースエレメント(RE)マッピング及び地理的同一指示子(PQI)の値により示される送信パラメータセットに基づき前記SPS PDSCHを処理するステップであって、前記PQIの値は、RRCレイヤシグナリングに基づき構成される、ステップ、を更に有する請求項8に記載の方法。
- プロセッサに、請求項1乃至14のいずれか一項に記載の方法を実施させ又は装置を実現させるコンピュータプログラム。
- 請求項15に記載のコンピュータプログラムを記憶するコンピュータ可読記憶媒体。
- E−UTRAN(evolved universal terrestrial radio access network)eNB(node B)の方法であって、前記方法は、
CoMP(coordinated multi−point)送信のためにユーザ機器(UE)を構成するステップと、
第1のサブフレーム内で、SPS(semi−persistent scheduling)無線ネットワーク一時識別子(RNTI)によりスクランブリングされるSPS開始制御チャネル信号を送信するステップであて、前記SPS開始制御チャネル信号は、nSCIDの値を伝達する、ステップと、
別のサブフレーム内で、対応する制御チャネル信号を有しない共有データチャネル信号を送信するステップであって、前記共有データチャネル信号は、前記第1のサブフレーム内の前記nSCIDの値に基づき決定される参照信号シーケンスを有するUE固有参照信号を有する、ステップと、
を有する方法。 - 前記SPS開始制御チャネル信号は、PDSCH(physical downlink shared channel)リソースエレメント(RE)マッピング及び地理的同一指示子(PQI)を伝達する、請求項17に記載の方法。
- 前記共有データチャネル信号は、前記nSCID及び前記PQIのうちの1又は複数に基づき送信される、請求項18に記載の方法。
- 請求項17乃至19のいずれか一項に記載の方法を実行する手段を有する装置。
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