JPWO2019215928A1 - ユーザ端末及び無線基地局 - Google Patents
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Abstract
Description
NRにおいて、UEは、PDSCHの受信から当該PDSCHに対応するHARQ−ACKの送信までのタイミング(PDSCH−to−ACKタイミング、「K1」などと呼ばれてもよい)を、当該PDSCHをスケジューリングするDCI(DL DCI、DLアサインメント、DCIフォーマット1_0、DCIフォーマット1_1などと呼ばれてもよい)に基づいて決定する。
また、NRにおいて、UEは、PUSCHをスケジューリングするDCI(UL DCI、ULグラント、DCIフォーマット0_0、DCIフォーマット0_1などと呼ばれてもよい)の受信から当該PUSCHの送信までのタイミング(ULgrant−to−PUSCHタイミング、「K2」、PDCCHを受信したスロット及びPUSCH送信を行うスロットのタイミングの差分などと呼ばれてもよい)を、当該DCIに基づいて決定する。
また、NRでは、PDSCHの処理時間、PUSCHの処理時間などが検討されている。なお、処理時間(processing time)は、準備時間(preparation time)、準備手順時間(preparation procedure time)、処理手順時間(processing procedure time)などで読み替えられてもよい。
また、NRでは、UEが、HARQ−ACKコードブック(HARQ−ACKサイズと呼ばれてもよい)を準静的(semi-static)又は動的(dynamic)に決定することが検討されている。基地局がUEに対して、HARQ−ACKコードブックの決定方法を示す情報(例えば、HARQ−ACKコードブックが準静的か、動的かを示す情報)を、上位レイヤシグナリングを用いて通知してもよい。HARQ−ACKコードブックは、PDSCHのHARQ−ACKコードブックと呼ばれてもよい。
NRにおいて、UEは、第1の周波数帯(FR1:Frequency Range 1)及び第2の周波数帯(FR2:Frequency Range 2)の少なくとも1つの周波数帯(キャリア周波数)を用いて通信(信号の送受信、測定など)することが検討されている。
<第1の実施形態>
第1の実施形態では、UEは、ニューメロロジー混在CAを設定される場合に、CAされるPUCCHセルについて設定されるK1の値と、CAされる各ULセルについて設定されるK2の値と、の全てが、N1及びN2の少なくとも一方に基づく処理時間(例えば、PDSCH処理時間、PUCCH処理時間、これらの処理時間の和など)に違反しない(処理時間の制約(要求)を満たす)ように設定されてもよい。
第2の実施形態では、UEは、ニューメロロジー混在CAを設定される場合に、CAされるPUCCHセルについて設定されるK1の値と、CAされる各ULセルについて設定されるK2の値と、の少なくとも一部が、N1及びN2の少なくとも一方に基づく処理時間に違反するように設定されてもよい。
第3の実施形態では、第2の実施形態と同様に、UEは、ニューメロロジー混在CAを設定される場合に、CAされるPUCCHセルについて設定されるK1の値と、CAされる各ULセルについて設定されるK2の値と、の少なくとも一部が、N1及びN2の少なくとも一方に基づく処理時間に違反するように設定されてもよい。
本開示におけるHARQ−ACKの生成、HARQ−ACKの送信、HARQ−ACKの決定及びHARQ−ACKの特定は、互いに読み替えられてもよい。また、本開示におけるHARQ−ACKは、ACK、NACK、A/Nなどと表現されてもよい。また、本開示におけるHARQ−ACKビット及びHARQ−ACKは、互いに読み替えられてもよい。
以下、本開示の一実施形態に係る無線通信システムの構成について説明する。この無線通信システムでは、本開示の上記各実施形態に係る無線通信方法のいずれか又はこれらの組み合わせを用いて通信が行われる。
図7は、一実施形態に係る無線基地局の全体構成の一例を示す図である。無線基地局10は、複数の送受信アンテナ101と、アンプ部102と、送受信部103と、ベースバンド信号処理部104と、呼処理部105と、伝送路インターフェース106と、を備えている。なお、送受信アンテナ101、アンプ部102、送受信部103は、それぞれ1つ以上を含むように構成されればよい。
図9は、一実施形態に係るユーザ端末の全体構成の一例を示す図である。ユーザ端末20は、複数の送受信アンテナ201と、アンプ部202と、送受信部203と、ベースバンド信号処理部204と、アプリケーション部205と、を備えている。なお、送受信アンテナ201、アンプ部202、送受信部203は、それぞれ1つ以上を含むように構成されればよい。
なお、上記実施形態の説明に用いたブロック図は、機能単位のブロックを示している。これらの機能ブロック(構成部)は、ハードウェア及びソフトウェアの少なくとも一方の任意の組み合わせによって実現される。また、各機能ブロックの実現方法は特に限定されない。すなわち、各機能ブロックは、物理的又は論理的に結合した1つの装置を用いて実現されてもよいし、物理的又は論理的に分離した2つ以上の装置を直接的又は間接的に(例えば、有線、無線などを用いて)接続し、これら複数の装置を用いて実現されてもよい。
なお、本開示において説明した用語及び本開示の理解に必要な用語については、同一の又は類似する意味を有する用語と置き換えてもよい。例えば、チャネル及びシンボルの少なくとも一方は信号(シグナリング)であってもよい。また、信号はメッセージであってもよい。参照信号は、RS(Reference Signal)と略称することもでき、適用される標準によってパイロット(Pilot)、パイロット信号などと呼ばれてもよい。また、コンポーネントキャリア(CC:Component Carrier)は、セル、周波数キャリア、キャリア周波数などと呼ばれてもよい。
Claims (3)
- 第1のサブキャリア間隔(SCS:Sub-Carrier Spacing)を用いる第1のコンポーネントキャリア(CC:Component Carrier)と、前記第1のSCSより大きい第2のSCSを用いる第2のCCと、を用いて送受信する送受信部と、
前記第2のCCの上り共有チャネルにおいて前記第1のCC及び前記第2のCCの両方に関する準静的なHARQ−ACK(Hybrid Automatic Repeat reQuest Acknowledgement)コードブックを送信する場合に、処理時間の要求を満たさないデータに対応するHARQ−ACKビットを削除する制御部と、を有することを特徴とするユーザ端末。 - 第1のサブキャリア間隔(SCS:Sub-Carrier Spacing)を用いる第1のコンポーネントキャリア(CC:Component Carrier)と、前記第1のSCSより大きい第2のSCSを用いる第2のCCと、を用いて送受信する送受信部と、
前記第2のCCの上り共有チャネルにおいて前記第1のCC及び前記第2のCCの両方に関する準静的なHARQ−ACK(Hybrid Automatic Repeat reQuest Acknowledgement)コードブックを送信する場合に、処理時間の要求を満たさないデータに対応するHARQ−ACKビットをACK及びNACKのいずれかであると決定する制御部と、を有することを特徴とするユーザ端末。 - 第1のサブキャリア間隔(SCS:Sub-Carrier Spacing)を用いる第1のコンポーネントキャリア(CC:Component Carrier)と、前記第1のSCSより大きい第2のSCSを用いる第2のCCと、の少なくとも一方を用いてユーザ端末と通信する送受信部と、
前記ユーザ端末が前記第2のCCの上り共有チャネルにおいて前記第1のCC及び前記第2のCCの両方に関する準静的なHARQ−ACK(Hybrid Automatic Repeat reQuest Acknowledgement)コードブックを送信する場合に、全てのデータに対応するHARQ−ACKビットが処理時間の要求を満たすように、下り共有チャネルの受信からHARQ−ACKの送信までのタイミング及び前記上り共有チャネルをスケジューリングする下り制御情報の受信から前記上り共有チャネルの送信までのタイミングを、前記ユーザ端末に設定する制御部と、を有することを特徴とする無線基地局。
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CN114157400B (zh) * | 2019-02-15 | 2024-04-16 | 华为技术有限公司 | 一种码本的处理方法及装置 |
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US11496344B2 (en) | 2022-11-08 |
CN112385293B (zh) | 2024-03-26 |
JP7160912B2 (ja) | 2022-10-25 |
CN112385293A (zh) | 2021-02-19 |
US20210281458A1 (en) | 2021-09-09 |
EP3793300A1 (en) | 2021-03-17 |
WO2019215928A1 (ja) | 2019-11-14 |
EP3793300A4 (en) | 2021-12-15 |
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