JP2011529290A - アップリンク伝送時に、多重符号語ベースの単一ユーザmimoが用いられるシステムにおけるphich割当及び参照信号生成方法 - Google Patents
アップリンク伝送時に、多重符号語ベースの単一ユーザmimoが用いられるシステムにおけるphich割当及び参照信号生成方法 Download PDFInfo
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Abstract
【解決手段】この方法は、基地局で、前記複数のアップリンク接続伝送モード別に生成された、アップリンクで伝送する参照信号の構成内容に関する参照信号構成情報を、該情報に対応するアップリンク接続伝送モードで動作するように設定されたユーザ機器に、アップリンク承認物理ダウンリンク制御チャネル(Physical Downlink Control Channel;PDCCH)を通じて伝送する段階と、前記参照信号構成情報に基づいて生成された参照信号を含むサブフレームを、前記ユーザ機器から受信する段階と、を含み、前記参照信号構成情報は、前記参照信号のシーケンスの巡回シフト値を含む。
【選択図】図10
Description
第1場合は、既存のアップリンクSU−MIMOを具現するにあって、伝送アンテナ(一連の仮想アンテナ(virtual antenna)または物理アンテナ(physical antenna))の個数または仮想アンテナの個数または伝送レイヤー数を表すmで定義される(例えば、mは、2または4になることもでき、1、2、3または4になることもできる。)UEの伝送アンテナ/レイヤー構成(tx antenna/layer configuration)によってp(p<=m)個の受信データ信号列の復調(demodulation)と複号化(decoding)のためのチャネル推定を提供するRSを必要とする。この時、p個のRSのうちq(q<=p)個のRSに対する伝送リソースは、任意のOFDM、SC−FDMAまたはクラスターSC−FDMAシンボル(該シンボルは、TDMで一つのOFDMまたはSC−FDMAまたはクラスターSC−FDMAシンボルとして指定されることもでき、または、複数個のOFDMまたはSC−FDMAまたはクラスターSC−FDMAシンボルとしてRS伝送のために指定されることもできる。)において周波数サブキャリア上のデータ伝送のための領域の長さを有するCAZAC(Constant Amplitude Zero Autocorrelation)系列の基本シーケンス(base sequence)や1RB/2RBの場合に対する低い相関(low correlation)特性のQPSKベースのコンピュータ生成シーケンス(computer−generated sequence)の巡回シフトバージョンとして指定されることができる。
また、端末(MS:Mobile Station)は、ユーザ機器(UE:User Equipment)に該当するもので、移動端末(Mobile Terminal)、SS(Subscriber Station)、MSS(Mobile Subscriber Station)などの用語に代替可能である。
特許請求の範囲において引用関係が明示されていない請求項を結合して実施例を構成したり、出願後の補正によって新しい請求項として含めることもできることは明らかである。
Claims (9)
- アップリンクで一つ以上の符号語を伝送するための単一ユーザMIMOシステムにおけるアップリンク参照信号生成方法であって、該方法は、
基地局において、アップリンクで伝送される参照信号の構成を示す参照信号構成情報を、アップリンク承認物理ダウンリンク制御チャネル(PDCCH)を通じてユーザ機器に伝送する段階であって、該ユーザ機器は前記情報に対応するアップリンク接続モードに従い動作するように設定される段階と、
前記参照信号構成情報に基づいて生成された前記参照信号を含むサブフレームを、前記ユーザ機器から受信する段階と、
を含み、
前記参照信号構成情報は、前記参照信号のシーケンスの巡回シフト値を含む、アップリンク参照信号生成方法。 - 前記参照信号構成情報は、アップリンクで伝送される全M個の参照信号のうち、N(N<=M)個の参照信号の巡回シフトに関する情報を含み、該情報は、前記N個の参照信号のうち、基準として用いられる1つの参照信号の巡回シフトインデックス、及び残りのN−1個の参照信号の巡回シフトインデックスを決定するためのオフセット情報を含む、請求項1に記載のアップリンク参照信号生成方法。
- 前記参照信号構成情報は、アップリンクで伝送される全M個の参照信号のうち、N(N<=M)個の参照信号の巡回シフトインデックスを含む、請求項1に記載のアップリンク参照信号生成方法。
- 前記N個の参照信号は、CAZAC系列の参照信号である、請求項2または3に記載のアップリンク参照信号生成方法。
- 前記M個の参照信号のうちの前記N個の参照信号は、時間領域のあらかじめ指定されたシンボル位置に挿入され、離散フーリエ変換(DFT)プロセスを受ける、請求項2または3に記載のアップリンク参照信号生成方法。
- 前記M個の参照信号のうちの前記N個の参照信号は、逆離散フーリエ変換(IDFT)または逆高速フーリエ変換(IFFT)の入力端において、割り当てられた周波数伝送帯域に対応するサンプルポイントに直接マッピングされる、請求項2または3に記載のアップリンク参照信号生成方法。
- 前記M値は、前記ユーザ機器で構成される物理伝送アンテナ、仮想アンテナ、またはサブフレームにおける伝送レイヤーの数に従い決定される、請求項1に記載のアップリンク参照信号生成方法。
- アップリンクで一つ以上の符号語を伝送するための単一ユーザMIMOシステムにおいて、伝送された各符号語に対するACK/NACKを伝送するための物理ハイブリッドARQ指示チャネル(PHICH)割当方法であって、該方法は、
PHICHグループの数を決定する段階と、
前記PHICHグループの数を用いて、PHICHグループインデックス及び該PHICHグループ内における直交シーケンスインデックスを決定する段階と、
を含み、
前記PHICHグループの数は、アップリンク伝送時の最大符号語数を用いて決定される、PHICH割当方法。 - 前記PHICHグループインデックス及び前記PHICHグループ内における前記直交シーケンスインデックスは、各符号語の固有のオフセット値を提供する関数を用いて決定される、請求項8に記載のPHICH割当方法。
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PCT/KR2009/004065 WO2010011083A2 (ko) | 2008-07-22 | 2009-07-22 | 상향링크 전송 시, 다중 코드워드 기반 단일 사용자 mimo가 사용되는 시스템에 있어서, phich 할당 및 참조 신호 생성 방법 |
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JPN6012058018; InterDigital Communications Corporation: 'Summary of Uplink SU-MIMO Using Precoding[online]' 3GPP TSG-RAN WG1♯47 3GPP TSG-RAN WG1#47 R1-063464 , 20061106, インターネット<URL:http://www.3gpp.org/ftp/tsg_ra * |
JPN6012058020; NTT DoCoMo, Ericsson, Mitsubishi Electric, NEC: 'Sequence Hopping and Cyclic-Shift Value Hopping for Uplink Reference Signal in E-UTRA[online]' 3GPP TSG-RAN WG1#48b R1-071643 , 20070326, インターネット<URL:http://www.3gpp.org/ftp/tsg_ra * |
JPN6012058022; NEC Group: 'The Detail of ZC Sequence Planning for Uplink Reference Signal[online]' 3GPP TSG-RAN WG1#49b R1-072825 , 20070625, インターネット<URL:http://www.3gpp.org/ftp/tsg_ra * |
JPN6012058023; NEC Group, NTT DoCoMo: 'Discussion on Uplink Reference Signal[online]' 3GPP TSG-RAN WG1#49b R1-072824 , 20070625, インターネット<URL:http://www.3gpp.org/ftp/tsg_ra * |
JPN6012058024; Qualcomm Europe: 'UL RS structure Issues with Frequency Domain CDM[online]' 3GPP TSG-RAN WG1#47bis R1-070432 , 20070115, インターネット<URL:http://www.3gpp.org/ftp/tsg_ra * |
JPN6012058026; NTT DoCoMo, NEC, SHARP: 'Orthogonal Pilot Channel in the Same Node B in Evolved UTRA Uplink[online]' 3GPP TSG-RAN WG1#42 R1-050851 , 20050829, インターネット<URL:http://www.3gpp.org/ftp/tsg_ra * |
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US9319183B2 (en) | 2009-07-30 | 2016-04-19 | Qualcomm Incorporated | Hybrid automatic repeat request operation and decoding status signaling for uplink multiple-input multiple-output |
JP2014521237A (ja) * | 2011-06-30 | 2014-08-25 | テレフオンアクチーボラゲット エル エム エリクソン(パブル) | 通信ネットワークにおいて基本系列を処理する方法及びデバイス |
JP2014140218A (ja) * | 2014-03-07 | 2014-07-31 | Sharp Corp | 移動局装置、無線通信方法および集積回路 |
JP2019531636A (ja) * | 2016-08-10 | 2019-10-31 | アイディーエーシー ホールディングス インコーポレイテッド | シングルキャリア周波数分割多元接続(sc−fdma)およびofdmaを用いた柔軟性のある参照信号送信のための方法 |
WO2020217941A1 (ja) * | 2019-04-25 | 2020-10-29 | 日本電気株式会社 | 変調装置及び復調装置 |
JPWO2020217941A1 (ja) * | 2019-04-25 | 2021-11-25 | 日本電気株式会社 | 変調装置及び復調装置 |
JP7201075B2 (ja) | 2019-04-25 | 2023-01-10 | 日本電気株式会社 | 復調装置 |
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CN103825638A (zh) | 2014-05-28 |
US20110176502A1 (en) | 2011-07-21 |
EP2306659B1 (en) | 2018-01-24 |
EP2306659A2 (en) | 2011-04-06 |
US9444596B2 (en) | 2016-09-13 |
CN103825638B (zh) | 2017-05-24 |
WO2010011083A3 (ko) | 2010-04-22 |
JP5357254B2 (ja) | 2013-12-04 |
EP2306659A4 (en) | 2015-05-20 |
JP5860011B2 (ja) | 2016-02-16 |
KR20110031928A (ko) | 2011-03-29 |
JP2013236411A (ja) | 2013-11-21 |
ES2666205T3 (es) | 2018-05-03 |
US20130336256A1 (en) | 2013-12-19 |
US20170310444A1 (en) | 2017-10-26 |
ES2760570T3 (es) | 2020-05-14 |
JP2016076988A (ja) | 2016-05-12 |
US10153880B2 (en) | 2018-12-11 |
WO2010011083A2 (ko) | 2010-01-28 |
JP6178393B2 (ja) | 2017-08-09 |
EP3322107A1 (en) | 2018-05-16 |
CN102106097A (zh) | 2011-06-22 |
CN102106097B (zh) | 2014-04-02 |
US8503425B2 (en) | 2013-08-06 |
EP3322107B1 (en) | 2019-09-04 |
US9729288B2 (en) | 2017-08-08 |
KR101625861B1 (ko) | 2016-06-01 |
US20150103796A1 (en) | 2015-04-16 |
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