JP2015521428A - 無線通信システム内のダウンリンク協調マルチポイントのシグナリング - Google Patents
無線通信システム内のダウンリンク協調マルチポイントのシグナリング Download PDFInfo
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- JP2015521428A JP2015521428A JP2015511778A JP2015511778A JP2015521428A JP 2015521428 A JP2015521428 A JP 2015521428A JP 2015511778 A JP2015511778 A JP 2015511778A JP 2015511778 A JP2015511778 A JP 2015511778A JP 2015521428 A JP2015521428 A JP 2015521428A
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- 230000011664 signaling Effects 0.000 title claims abstract description 27
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- 230000000737 periodic effect Effects 0.000 claims description 2
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Abstract
Description
無線通信ネットワークを介してeNB(evolved Node B)と通信するよう構成される通信モジュールと、
前記通信モジュールに結合されるフィードバックモジュールであって、
前記無線通信ネットワークを介して、前記eNBからDCI(downlink control information)メッセージを受信し、前記DCIメッセージは2ビットのCSI(channel state information)要求フィールドを有し、前記CSI要求フィールドは、
前記フィードバックモジュールが、サービングセルに関連する予め構成されるCSIプロセスの第1のセットについてのCSIレポートを提供することを示すための第1の値と、
前記フィードバックモジュールが、予め構成されるCSIプロセスの第2のセットについてのCSIレポートを提供することを示すための第2の値と、又は
前記フィードバックモジュールが、予め構成されるCSIプロセスの第3のセットについてのCSIレポートを提供することを示すための第3の値と、を有し、
前記CSI要求フィールドにより示されるCSIプロセスについてCSIフィードバックを生成し、
前記通信モジュールを介して、PUSCH(physical uplink shared channel)で前記eNBへCSIレポートを送信し、前記CSIレポートは、前記生成したCSIフィードバックを含む、
よう構成されるフィードバックモジュールと、
を有する装置を提供する。
前記無線通信ネットワークを介するユーザ機器(UE)とのダウンリンクCoMP(coordinated multipoint)通信を管理するよう構成されるCoMPモジュールと、
前記CoMPモジュールに結合される非周期的フィードバックモジュールであって、
前記UEへDCI(downlink control information)メッセージを送信し、前記DCIメッセージは2ビットのCSI(channel state information)要求フィールドを有し、前記CSI要求フィールドは、
前記UEが、サービングセルに関連する予め構成されるCSIプロセスの第1のセットについてのCSIレポートを提供することを示すための第1の値と、
前記UEが、予め構成されるCSIプロセスの第2のセットについてのCSIレポートを提供することを示すための第2の値と、又は
前記UEが、予め構成されるCSIプロセスの第3のセットについてのCSIレポートを提供することを示すための第3の値と、を有し、
PUSCH(physical uplink shared channel)で前記UEからCSIレポートを受信し、前記CSIレポートは、前記CSI要求フィールドにより識別されるCSIプロセスについてのCSIフィードバックを含み、前記CSIレポートは、前記UEとの前記ダウンリンクCoMP通信をサポートする、
よう構成される非周期的フィードバックモジュールと、
を有する装置である。
無線通信ネットワークを介してeNB(evolved Node B)から第1のビットマップを受信し、前記第1のビットマップは、CSI(channel state information)プロセスの第1のセットに含まれる1又は複数のCSIプロセスを示し、
前記eNBから、CSIプロセスの第2のセットに含まれる1又は複数のCSIプロセスを示す第2のビットマップを受信し、
前記eNBからDCI(downlink control information)メッセージを受信し、前記DCIメッセージは、前記UEへのダウンリンクCoMP(coordinated multipoint)送信をサポートするためにCSIフィードバックを要求するための2ビットのCSI要求フィールドを有し、前記CSI要求フィールドは、
前記UEがCSIプロセスの前記第1のセットについてのCSIフィードバックを提供することを示すための第1の値と、又は
前記UEがCSIプロセスの前記第2のセットについてのCSIフィードバックを提供することを示すための第2の値と、を有する回路を有し、前記装置は、回路であって、
前記CSI要求フィールドにより示されたCSIプロセスについてCSIフィードバックを生成し、
前記eNBへ前記生成されたCSIフィードバックを含むCSIレポートを送信する、回路を更に有する。
前記UEへのダウンリンクCoMP送信をサポートするためにCSIフィードバックをレポートするのに前記UEにより使用するために個々のCSI(channel state information)プロセスに関連する構成情報を受信するCoMP(coordinated multipoint)モジュールと、
前記CoMPモジュールに結合されるフィードバックモジュールであって、
複数の構成されたCSIプロセスについてCSIフィードバックを生成し、
前記CSIプロセスのCSIプロセスインデックスに従って連結される前記複数の構成されたCSIプロセスについてのCSIフィードバックを有するCSIレポートを生成し、
前記無線通信ネットワークのeNB(evolved Node B)へ前記CSIレポートを送信する、よう構成されるフィードバックモジュールと、
を有する装置である。
無線通信ネットワークを介してeNB(evolved Node B)と通信するよう構成される通信モジュールと、
前記通信モジュールに結合されるCoMP(coordinated multipoint)モジュールであって、
前記通信モジュールを介して、複数のPDSCH(physical downlink shared channel)マッピング構成についてのPDSCHリソース要素(RE)マッピングパラメータを含むRRC(radio resource control)送信を受信し、
前記通信モジュールを介して、前記PDSCHを受信するのに用いるために、前記通信モジュールの前記複数のPDSCHマッピング構成のうちの第1のPDSCHマッピング構成を示すDCI(downlink control information)を受信する、
よう構成されるCoMPモジュールと、
を有する装置である。
eNB(evolved Node B)からDCI(downlink control information)メッセージを受信する手段であって、前記DCIメッセージは2ビットのCSI(channel state information)要求フィールドを有し、前記CSI要求フィールドは、
前記フィードバックモジュールが、サービングセルに関連する予め構成されるCSIプロセスの第1のセットについてのCSIレポートを提供することを示すための第1の値と、
前記フィードバックモジュールが、予め構成されるCSIプロセスの第2のセットについてのCSIレポートを提供することを示すための第2の値と、又は
前記フィードバックモジュールが、予め構成されるCSIプロセスの第3のセットについてのCSIレポートを提供することを示すための第3の値と、を有する、手段と、
前記CSI要求フィールドにより示されるCSIプロセスについてCSIフィードバックを生成する手段と、
PUSCH(physical uplink shared channel)で前記eNBへCSIレポートを送信する手段であって、前記CSIレポートは、前記生成したCSIフィードバックを含む、手段と、
を有する装置である。
無線通信ネットワークを介してeNB(evolved Node B)から第1のビットマップを受信する手段であって、前記第1のビットマップは、CSI(channel state information)プロセスの第1のセットに含まれる1又は複数のCSIプロセスを示す、手段と、
前記eNBから、CSIプロセスの第2のセットに含まれる1又は複数のCSIプロセスを示す第2のビットマップを受信する手段と、
前記eNBからDCI(downlink control information)メッセージを受信する手段であって、前記DCIメッセージは、前記UEへのダウンリンクCoMP(coordinated
multipoint)送信をサポートするためにCSIフィードバックを要求するための2ビットのCSI要求フィールドを有し、前記CSI要求フィールドは、
前記UEがCSIプロセスの前記第1のセットについてのCSIフィードバックを提供することを示すための第1の値と、又は
前記UEがCSIプロセスの前記第2のセットについてのCSIフィードバックを提供することを示すための第2の値と、を有する、手段と、
前記CSI要求フィールドにより示されたCSIプロセスについてCSIフィードバックを生成する手段と、
前記eNBへ前記生成されたCSIフィードバックを含むCSIレポートを送信する手段と、
を有する装置である。
本願は、米国特許出願第13/730,289号、2012年12月28日出願、「SIGNALING FOR DOWNLINK COORDINATED MULTIPOINT IN A WIRELESS COMMUNICATION SYSTEM」の優先権を主張する。米国特許出願第13/730,289号は、米国特許仮出願第61/646,223号、2012年5月11日出願、「ADVANCED WIRELESS COMMUNICATION SYSTEMSAND TECHNIQUES」の優先権を主張する。これらの両開示は、参照することにより本願明細書に組み込まれる。
Claims (30)
- チャネル状態情報のフィードバックを実現するためにユーザ機器(UE)により用いられる装置であって、
無線通信ネットワークを介してeNB(evolved Node B)と通信するよう構成される通信モジュールと、
前記通信モジュールに結合されるフィードバックモジュールであって、
前記無線通信ネットワークを介して、前記eNBからDCI(downlink control information)メッセージを受信し、前記DCIメッセージは2ビットのCSI(channel state information)要求フィールドを有し、前記CSI要求フィールドは、
前記フィードバックモジュールが、サービングセルに関連する予め構成されるCSIプロセスの第1のセットについてのCSIレポートを提供することを示すための第1の値と、
前記フィードバックモジュールが、予め構成されるCSIプロセスの第2のセットについてのCSIレポートを提供することを示すための第2の値と、又は
前記フィードバックモジュールが、予め構成されるCSIプロセスの第3のセットについてのCSIレポートを提供することを示すための第3の値と、を有し、
前記CSI要求フィールドにより示されるCSIプロセスについてCSIフィードバックを生成し、
前記通信モジュールを介して、PUSCH(physical uplink shared channel)で前記eNBへCSIレポートを送信し、前記CSIレポートは、前記生成したCSIフィードバックを含む、
よう構成されるフィードバックモジュールと、
を有する装置。 - 前記DCIメッセージは第1のDCIメッセージであり、前記フィードバックモジュールは第2のDCIメッセージを受信するよう構成され、前記第2のDCIメッセージは、いかなるCSIレポートも第2のDCIメッセージによりトリガされないことを示すために第4の値を有するCSI要求フィールドを有する、請求項1に記載の装置。
- CSIプロセスの前記第2及び第3のセットは、前記UEとのRRC(radio resource control)シグナリングを介して構成される、請求項1に記載の装置。
- 前記第1のセットは、前記UEとのRRC(radio resource control)シグナリングを介して構成されるとき、前記サービングセルに関連する全てのCSIプロセスより少ないサブセットを有する、請求項3に記載の装置。
- CSIプロセスのサブセットは、前記サービングセルを含む複数のセルのうちの個々のセルに関連する前記UEのために、RRCシグナリングを介して構成され、前記UEは、前記サービングセルで前記DCIメッセージを受信するのに基づき、前記サービングセルのために予め構成されたCSIプロセスの前記第1のセットを識別する、請求項4に記載の装置。
- 前記第1のセットは、前記サービングセルに関連する全てのCSIプロセスを有する、請求項3に記載の装置。
- 予め構成されたCSIプロセスの前記第2及び第3のセットは、1又は複数の共通のCSIプロセスを有する、請求項1に記載の装置。
- 前記生成されたCSIフィードバックは、CQI(channel quality indicator)、PMI(precoding matrix indicator)、1又は複数の選択されたサブバンド、又はRI(rank indicator)を有し、
個々のCSIプロセスは、CSI−RS(CSI reference signal)リソース及びCSI−IM(CSI interference measurement)リソースに関連付けられる、
請求項1に記載の装置。 - 前記CSIフィードバックは、前記UEへのダウンリンクCoMP(coordinated multipoint)送信をサポートする、請求項1乃至8のいずれか一項に記載の装置。
- 前記CSIレポートは、CSIプロセスインデックスの昇順に連結された複数のCSIプロセスについてのCSIフィードバックを有する、請求項1乃至8のいずれか一項に記載の装置。
- 無線通信ネットワークのeNB(evolved Node B)により用いられる装置であって、
前記無線通信ネットワークを介するユーザ機器(UE)とのダウンリンクCoMP(coordinated multipoint)通信を管理するよう構成されるCoMPモジュールと、
前記CoMPモジュールに結合される非周期的フィードバックモジュールであって、
前記UEへDCI(downlink control information)メッセージを送信し、前記DCIメッセージは2ビットのCSI(channel state information)要求フィールドを有し、前記CSI要求フィールドは、
前記UEが、サービングセルに関連する予め構成されるCSIプロセスの第1のセットについてのCSIレポートを提供することを示すための第1の値と、
前記UEが、予め構成されるCSIプロセスの第2のセットについてのCSIレポートを提供することを示すための第2の値と、又は
前記UEが、予め構成されるCSIプロセスの第3のセットについてのCSIレポートを提供することを示すための第3の値と、を有し、
PUSCH(physical uplink shared channel)で前記UEからCSIレポートを受信し、前記CSIレポートは、前記CSI要求フィールドにより識別されるCSIプロセスについてのCSIフィードバックを含み、前記CSIレポートは、前記UEとの前記ダウンリンクCoMP通信をサポートする、
よう構成される非周期的フィードバックモジュールと、
を有する装置。 - 前記DCIメッセージは第1のDCIメッセージであり、前記非周期的フィードバックモジュールは第2のDCIメッセージを受信するよう更に構成され、前記第2のDCIメッセージは、いかなるCSIレポートも前記第2のDCIメッセージによりトリガされないことを示すための第4の値を有するCSI要求フィールドを有する、請求項11に記載の装置。
- 前記第1のセットは、前記サービングセルに関連する全てのCSIプロセスより少ないサブセットを有する、請求項11に記載の装置。
- 予め構成されたCSIプロセスの前記第2及び第3のセットは、1又は複数の共通のCSIプロセスを有する、請求項11乃至13のいずれか一項に記載の装置。
- 前記CoMP管理モジュールは、上位レイヤのシグナリングを介して前記UEにおいて個々のCSIプロセスを構成するよう更に構成され、前記CoMP管理モジュールは、CSIレポートのために前記UEにより使用されるべきコードブック内のプリコーディングマトリックス指示子のサブセットを示すために、個々のCSIプロセスに関連するcodebookSubsetRestnctionパラメータを送信するよう更に構成される、請求項11に記載の装置。
- ユーザ機器(UE)により用いられる装置であって、
無線通信ネットワークを介してeNB(evolved Node B)から第1のビットマップを受信する手段であって、前記第1のビットマップは、CSI(channel state information)プロセスの第1のセットに含まれる1又は複数のCSIプロセスを示す、手段と、
前記eNBから、CSIプロセスの第2のセットに含まれる1又は複数のCSIプロセスを示す第2のビットマップを受信する手段と、
前記eNBからDCI(downlink control information)メッセージを受信する手段であって、前記DCIメッセージは、前記UEへのダウンリンクCoMP(coordinated multipoint)送信をサポートするためにCSIフィードバックを要求するための2ビットのCSI要求フィールドを有し、前記CSI要求フィールドは、
前記UEがCSIプロセスの前記第1のセットについてのCSIフィードバックを提供することを示すための第1の値と、又は
前記UEがCSIプロセスの前記第2のセットについてのCSIフィードバックを提供することを示すための第2の値と、を有する、手段と、
前記CSI要求フィールドにより示されたCSIプロセスについてCSIフィードバックを生成する手段と、
前記eNBへ前記生成されたCSIフィードバックを含むCSIレポートを送信する手段と、
を有する装置。 - 前記DCIメッセージは第1のDCIメッセージであり、前記装置は、第2のDCIメッセージを受信する手段を更に有し、前記第2のDCIメッセージは、前記UEがサービングセルのために構成されたCSIプロセスの第3のセットについてのCSIレポートを提供することを示す第3の値を有するCSI要求フィールドを有する、請求項16に記載の装置。
- 第3のDCIメッセージを受信する手段を更に有し、前記第3のDCIメッセージは、いかなるCSIレポートも前記第3のDCIメッセージによりトリガされないことを示す第4の値を有するCSI要求フィールドを有する、請求項17に記載の装置。
- 前記DCIメッセージは第1のDCIメッセージであり、前記装置は、第2のDCIメッセージを受信する手段を更に有し、前記第2のDCIメッセージは、前記UEがCSIプロセスの前記第1のセット及び前記第2のセットについてのCSIレポートを提供することを示す第3の値を有するCSI要求フィールドを有する、請求項16に記載の装置。
- 前記第1のビットマップは複数のビットを有し、CSIプロセスがCSIプロセスの第1のセットに含まれるかどうかを示すために個々のビットは個々のCSIプロセスに対応し、前記複数のビットは前記ビットマップ内でセルインデックスに従って順序付けられ、同じセルインデックスに関連するCSIプロセスに対応する複数のビットは、CSIプロセス識別子(ID)により順序付けられる、請求項16に記載の装置。
- 無線通信ネットワークのユーザ機器(UE)により用いられる方法であって、
前記UEへのダウンリンクCoMP送信をサポートするためにCSIフィードバックをレポートするのに前記UEにより使用するために個々のCSI(channel state information)プロセスに関連する構成情報を受信するステップと、
前記複数の構成されたCSIプロセスについてCSIフィードバックを生成するステップと、
前記CSIプロセスのCSIプロセスインデックスに従って連結される複数の構成されたCSIプロセスについてのCSIフィードバックを有するCSIレポートを生成するステップと、
前記無線通信ネットワークのeNB(evolved Node B)へ前記CSIレポートを送信するステップと、
を有する方法。 - 前記CSIレポートは、異なる成分搬送波のCSIプロセスについてのCSIフィードバックを有し、前記CSIフィードバックは、CQI(channel quality indicator)、PMI(precoding matrix indicator)、又はRI(rank indicator)を有し、前記CSIフィードバックは、先ず所与のセルのCSIプロセスのCSIプロセスインデックスの昇順に、次にセルインデックスの昇順に連結される、請求項21に記載の方法。
- 前記CSIレポートは、第1のCSIプロセス及び第2のCSIプロセスについてのCSIフィードバックを有し、前記第1及び第2のCSIプロセスの同じCSIフィードバックの共有成分は、前記CSIレポート内で1回だけレポートされる、請求項21に記載の方法。
- 前記共有成分は、前記第1及び第2のCSIプロセスに関連するRI(rank indicator)である、請求項23に記載の方法。
- 前記CSIレポートは、ターボ符号化及びCRC(cyclic redundancy check)符号化を用いて符号化される、請求項21に記載の方法。
- ユーザ機器(UE)により用いられる装置であって、
無線通信ネットワークを介してeNB(evolved Node B)と通信するよう構成される通信モジュールと、
前記通信モジュールに結合されるCoMP(coordinated multipoint)モジュールであって、
前記通信モジュールを介して、複数のPDSCH(physical downlink shared channel)マッピング構成についてのPDSCHリソース要素(RE)マッピングパラメータを含むRRC(radio resource control)送信を受信し、
前記通信モジュールを介して、前記PDSCHを受信するのに用いるために、前記通信モジュールの前記複数のPDSCHマッピング構成のうちの第1のPDSCHマッピング構成を示すDCI(downlink control information)を受信する、
よう構成されるCoMPモジュールと、
を有する装置。 - 前記PDSCH REマッピングパラメータは、複数のCRS(cell−specific reference signal)アンテナポート、CRSアンテナポートシフト、PDSCH開始シンボル、マルチキャスト−ブロードキャスト単一周波数ネットワークサブフレーム構成、非ゼロ電力CSI(channel state information)RS(reference signal)識別子、又は前記個々のPDSCHマッピング構成に関連付けられたCSIプロセス識別子、を有する、請求項26に記載の装置。
- 前記PDSCH REマッピングパラメータは、前記複数のCRSアンテナポート及び前記CRSアンテナポートシフトを有し、前記複数のアンテナポート及び前記アンテナポートシフトは、CRS構成パラメータに一緒に符号化される、請求項27に記載の装置。
- 前記DCIメッセージは、前記UEのための前記PDSCHを受信するために用いるべき第1のPDSCHマッピング構成及び成分搬送波を示すキャリアアグリゲーション(CA)セル識別子フィールド(CIF)を有する、請求項26に記載の装置。
- 前記CA CIFは、3個のビットを有し、2個の構成された成分搬送波のうちの1つ及び4個の構成されたPDSCHマッピング構成のうちの1つを示す、請求項29に記載の装置。
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