JP6907117B2 - 端末、基地局及び無線通信方法 - Google Patents
端末、基地局及び無線通信方法 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1854—Scheduling and prioritising arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1657—Implicit acknowledgement of correct or incorrect reception, e.g. with a moving window
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1864—ARQ related signaling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1896—ARQ related signaling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Description
第1の態様では、ユーザ端末がHARQ−ACKの送信指示(HARQ−ACKグラント)に関する情報に基づいてHARQ−ACKの送信を制御する場合について説明する。
DLアサイメントを利用してHARQ−ACKグラントに関する情報をユーザ端末に通知する場合、無線基地局は、HARQ−ACK送信に利用するリソース情報及び/又は信号系列等の情報を当該DLアサイメントに含めて送信することができる。なお、無線基地局は、これらの情報をUL無線基地局は、HARQ−ACK送信に利用するリソース情報として、HARQ−ACK送信に利用するULチャネル(例えば、PUCCH)のリソースブロック番号(PRB)、帯域幅及びリソース番号の少なくとも一部をユーザ端末に通知することができる。
無線基地局がHARQ−ACKグラントに関する情報を独立したL1/L2制御信号(例えば、下り制御情報)に含めてユーザ端末に通知する場合、ユーザ端末は、HARQ−ACKグラントをDLアサイメントやULグラントとは独立して検出を行う(図4参照)。
ユーザ端末は、各DLサブフレームに対応するHARQ−ACKを独立なビットとして生成し、生成したビットを符号化して得られる符号系列を1つのUL送信(例えば、PUCCH及び/又はPUSCH)で送信することができる。つまり、ユーザ端末は、HARQ−ACKグラントに対応する複数のDL信号のHARQ−ACKをそれぞれ符号化してフィードバックするように制御することができる。
第2の態様では、HARQ−ACKグラントを所定期間検出しない場合のユーザ端末動作について説明する。
以下、本発明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、上記各態様に係る無線通信方法が適用される。なお、上記各態様に係る無線通信方法は、それぞれ単独で適用されてもよいし、組み合わせて適用されてもよい。
図8は、本発明の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、送受信部103は、送信部及び受信部で構成される。
図10は、本発明の一実施形態に係る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、MIMO伝送のための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、送受信部203は、送信部及び受信部から構成されてもよい。
Claims (5)
- 物理下りリンク共有チャネル(PDSCH)をスケジュールする第1下りリンク制御情報(DCI)を受信する受信部と、
前記第1DCIより後の第2DCIに含まれる、Hybrid Automatic Repeat reQuest Acknowledgement(HARQ−ACK)の送信指示に関する情報に基づいて、前記PDSCHに対するHARQ−ACKの送信を制御する制御部と、を有する端末。 - 前記受信部は、前記HARQ−ACKの送信を行うリソースに関する情報及び前記HARQ−ACKの送信を行う信号系列に関する情報の少なくとも1つを前記第2DCIで受信する請求項1に記載の端末。
- 前記制御部は、前記HARQ−ACKの送信指示に対応する複数のPDSCHに対するHARQ−ACKをそれぞれ符号化して送信するように制御する請求項1又は請求項2に記載の端末。
- 物理下りリンク共有チャネル(PDSCH)をスケジュールする第1下りリンク制御情報(DCI)を送信する送信部と、
Hybrid Automatic Repeat reQuest Acknowledgement(HARQ−ACK)の送信指示に関する情報に基づいて送信される、前記PDSCHに対するHARQ−ACKの受信を制御する制御部と、を有し、
前記HARQ−ACKの送信指示に関する情報は、前記第1DCIより後の第2DCIに含まれる、基地局。 - 物理下りリンク共有チャネル(PDSCH)をスケジュールする第1下りリンク制御情報(DCI)を受信するステップと、
前記第1DCIより後の第2DCIに含まれる、Hybrid Automatic Repeat reQuest Acknowledgement(HARQ−ACK)の送信指示に関する情報に基づいて、前記PDSCHに対するHARQ−ACKの送信を制御するステップと、を有する端末の無線通信方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015164186 | 2015-08-21 | ||
JP2015164186 | 2015-08-21 | ||
PCT/JP2016/073798 WO2017033780A1 (ja) | 2015-08-21 | 2016-08-12 | ユーザ端末、無線基地局及び無線通信方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2017033780A1 JPWO2017033780A1 (ja) | 2018-07-26 |
JP6907117B2 true JP6907117B2 (ja) | 2021-07-21 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017536754A Active JP6907117B2 (ja) | 2015-08-21 | 2016-08-12 | 端末、基地局及び無線通信方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11575487B2 (ja) |
EP (1) | EP3340673A4 (ja) |
JP (1) | JP6907117B2 (ja) |
CN (1) | CN107925913B (ja) |
WO (1) | WO2017033780A1 (ja) |
Families Citing this family (8)
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EP3247162B1 (en) * | 2015-02-09 | 2019-04-10 | Huawei Technologies Co., Ltd. | Method for retransmitting rlc data packet and base station |
WO2018111809A1 (en) * | 2016-12-13 | 2018-06-21 | Intel IP Corporation | User equipment (ue), generation node-b (gnb) and methods for signaling of control information for pre-coding |
CN110463106A (zh) * | 2017-03-31 | 2019-11-15 | 摩托罗拉移动有限责任公司 | 确定承载反馈信息的资源字段 |
WO2019087240A1 (ja) * | 2017-10-30 | 2019-05-09 | 富士通株式会社 | 端末装置、基地局装置、通信方法、及び無線通信システム |
US20210266902A1 (en) * | 2018-07-20 | 2021-08-26 | Ntt Docomo, Inc. | User terminal |
BR112021008984A2 (pt) * | 2018-08-08 | 2021-08-17 | Beijing Xiaomi Mobile Software Co., Ltd. | método, aparelho e dispositivo para realimentação de solicitação de repetição automática híbrida, e, mídia de armazenamento legível por computador |
KR20210096663A (ko) | 2018-12-28 | 2021-08-05 | 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 | 무선 통신 방법, 단말 장치와 네트워크 장치 |
US20230113163A1 (en) * | 2020-03-06 | 2023-04-13 | Ntt Docomo, Inc. | Terminal, radio communication method, and base station |
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JP4430052B2 (ja) * | 2006-06-19 | 2010-03-10 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信システム、ユーザ装置及び送信方法 |
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-
2016
- 2016-08-12 WO PCT/JP2016/073798 patent/WO2017033780A1/ja active Application Filing
- 2016-08-12 CN CN201680048266.0A patent/CN107925913B/zh active Active
- 2016-08-12 JP JP2017536754A patent/JP6907117B2/ja active Active
- 2016-08-12 US US15/752,935 patent/US11575487B2/en active Active
- 2016-08-12 EP EP16839127.4A patent/EP3340673A4/en not_active Withdrawn
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Publication number | Publication date |
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JPWO2017033780A1 (ja) | 2018-07-26 |
CN107925913B (zh) | 2022-07-26 |
US20180241530A1 (en) | 2018-08-23 |
EP3340673A1 (en) | 2018-06-27 |
EP3340673A4 (en) | 2019-04-17 |
US11575487B2 (en) | 2023-02-07 |
CN107925913A (zh) | 2018-04-17 |
WO2017033780A1 (ja) | 2017-03-02 |
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