JP7240375B2 - 下りリンクデータチャネルを送受信する方法及びそのための装置 - Google Patents
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Description
個の連続した又は特定の規則に配置されたCCEを確認するように設定される。端末がPDCCH受信のために考えるL値は複数である。端末がPDCCH受信のために確認するCCE集合を検索領域(Search space)という。一例として、LTEシステムでは検索領域を表1のように定義している。
は(20,A)RMコードを用いてチャネルコーディングである。表8は(20,A)コードのための基本シーケンスを示す。
と
はMSB(Most Significant Bit)とLSB(Least Significant Bit)を示す。拡張CPの場合、CQIとACK/NACKが同時送信される場合を除外すると、最大情報ビットは11ビットである。RMコードを使用して20ビットにコーディングした後、QPSK変調が適用されることができる。QPSK変調前、コーディングされたビットはスクランブルされることができる。
Claims (7)
- 無線通信システムにおいて、端末が物理下りリンク共有チャネル(Physical Downlink Shared Channel;PDSCH)を受信する方法であって、
(i)前記PDSCHのk回の繰り返しをスケジューリングするための情報、及び(ii)前記PDSCHに対するレートマッチング情報を含む、1つの物理下りリンク制御チャネル(Physical Downlink Control Channel;PDCCH)を、1つの第1送信時間間隔(Transmission Time Interval;TTI)において受信し、
前記レートマッチング情報に基づいて、前記PDSCHを前記第1TTIと前記第1TTIに続く(k-1)個の第2TTIにおいて繰り返し受信し、
前記繰り返し受信したPDSCHに対するHybrid Automatic Request-Acknowledgement(HARQ-ACK)を第3TTIにおいて送信することを含み、
前記レートマッチング情報は、前記第1TTI及び前記(k-1)個の第2TTIに対して等しく利用され、
前記第3TTIは、前記(k-1)個の第2TTIの最後のTTIに基づいて決定され、
前記PDCCHは、前記第1TTIに対応する冗長度バージョン(Redundancy Version:RV)の値を含み、
前記PDCCHの繰り返しに対する複数のTTIの内において前記PDCCHが何回目に繰り返し送信されたかについての情報は、前記RVの値に基づいて取得され、
前記複数のTTIは前記第1TTI及び前記(k-1)個の第2TTIを含み、
kは正の整数であり、kは1より大きい、PDSCH受信方法。 - 前記第1TTI及び前記(k-1)個の第2TTIにおいて繰り返し受信される前記PDSCHは、同じ送信ブロック(Transport Block;TB)のためである、請求項1に記載のPDSCH受信方法。
- 前記第1TTI及び前記(k-1)個の第2TTIは、短いTTI(Short TTI;sTTI)である、請求項1に記載のPDSCH受信方法。
- 無線通信システムにおいて、物理下りリンク共有チャネル(Physical Downlink Shared Channel;PDSCH)を受信する通信装置であって、
メモリと、
前記メモリに連結されるプロセッサを含み、
前記プロセッサは、
(i)前記PDSCHのk回の繰り返しをスケジューリングするための情報,及び(ii)前記PDSCHのためのレートマッチング情報を含む、1つの物理下りリンク制御チャネル(Physical Downlink Control Channel; PDCCH)を1つの第1送信時間間隔(Transmission Time Interval;TTI)において受信し、
前記レートマッチング情報に基づいて、前記PDSCHを前記第1TTI及び前記第1TTIに続く(k-1)個の第2TTIにおいて繰り返し受信し、
前記繰り返し受信したPDSCHに対するHybrid Automatic Request-Acknowledgement(HARQ-ACK)を第3TTIにおいて送信するように制御することを含み、
前記レートマッチング情報は、前記第1TTI及び前記(k-1)個の第2TTIに対して等しく利用され、
前記第3TTIは、前記(k-1)個の第2TTIの最後のTTIに基づいて決定され、
前記PDCCHは、前記第1TTIに対応する冗長度バージョン(Redundancy Version:RV)の値を含み、
前記PDCCHの繰り返しに対する複数のTTIの内において前記PDCCHが何回目に繰り返し送信されたかについての情報は、前記RVの値に基づいて取得され、
前記複数のTTIは前記第1TTI及び前記(k-1)個の第2TTIを含み、
kは正の整数であり、kは1より大きい、通信装置。 - 前記第1TTI及び前記(k-1)個の第2TTIにおいて繰り返し受信される前記PDSCHは、同じ送信ブロック(Transport Block;TB)のためである、請求項4に記載の通信装置。
- 前記第1TTI及び前記(k-1)個の第2TTIは、短いTTI(Short TTI;sTTI)である、請求項4に記載の通信装置。
- 無線通信システムにおいて、基地局が物理下りリンク共有チャネル(Physical Downlink Shared Channel;PDSCH)を送信する方法であって、
(i)前記PDSCHのk回の繰り返しをスケジューリングするための情報,及び(ii)前記PDSCHのためのレートマッチング情報を含む、1つの物理下りリンク制御チャネル(Physical Downlink Control Channel;PDCCH)を1つの第1送信時間間隔(Transmission Time Interval;TTI)において送信し、
前記レートマッチング情報に基づいて、前記PDSCHを前記第1TTIと前記第1TTIに続く(k-1)個の第2TTIにおいて繰り返し送信し、
前記繰り返し送信したPDSCHに対するHybrid Automatic Request-Acknowledgement(HARQ-ACK)を第3TTIにおいて受信することを含み、
前記レートマッチング情報は、前記第1TTI及び前記(k-1)個の第2TTIに対して等しく利用され、
前記第3TTIは前記(k-1)個の第2TTIの最後のTTIに基づいて決定され、
前記PDCCHは、前記第1TTIに対応する冗長度バージョン(Redundancy Version:RV)の値を含み、
前記PDCCHの繰り返しに対する複数のTTIの内において前記PDCCHが何回目に繰り返し送信されたかについての情報は、前記RVの値に関連し、
前記複数のTTIは前記第1TTI及び前記(k-1)個の第2TTIを含み、
kは正の整数であり、kは1より大きい、PDSCH送信方法。
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JP7320042B2 (ja) | 2023-08-02 |
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US11451351B2 (en) | 2022-09-20 |
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US20200382247A1 (en) | 2020-12-03 |
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CN111052667A (zh) | 2020-04-21 |
EP3664350B1 (en) | 2022-11-23 |
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