WO2019092859A1 - ユーザ端末及び無線通信方法 - Google Patents
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- WO2019092859A1 WO2019092859A1 PCT/JP2017/040645 JP2017040645W WO2019092859A1 WO 2019092859 A1 WO2019092859 A1 WO 2019092859A1 JP 2017040645 W JP2017040645 W JP 2017040645W WO 2019092859 A1 WO2019092859 A1 WO 2019092859A1
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- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
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- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
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- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
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- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
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Definitions
- control may be performed to report only a part of CSI parameters among the information types (CSI parameters) of type 2-CSI.
- CSI including a part of information types may be called as partial type 2 CSI (partial Type 2 CSI).
- the UE may periodically transmit SP-CSI reports.
- the SP-CSI report is configured based on a combination of higher layer signaling (eg, RRC signaling) and L1 signaling (eg, DCI) or L2 signaling (eg, MAC CE).
- the UE may not send explicit delivery confirmation information for activation or deactivation.
- the radio base station may recognize whether the UE has successfully received the notification of activation or deactivation by detecting whether there is an SP-CSI report.
- the UE may use MAC CE as delivery confirmation of activation or deactivation. For example, when the activation or deactivation is UL DCI, the UE may transmit delivery confirmation information of the DCI by MAC CE using a PUSCH resource indicated by the DCI.
- the radio base station 11 is a radio base station having a relatively wide coverage, and may be called a macro base station, an aggregation node, an eNB (eNodeB), a transmission / reception point, or the like.
- the radio base station 12 is a radio base station having local coverage, and is a small base station, a micro base station, a pico base station, a femto base station, a HeNB (Home eNodeB), an RRH (Remote Radio Head), transmission and reception It may be called a point or the like.
- the radio base stations 11 and 12 are not distinguished, they are collectively referred to as the radio base station 10.
- a cell-specific reference signal (CRS: Cell-specific Reference Signal), a channel state information reference signal (CSI-RS: Channel State Information-Reference Signal), a demodulation reference signal (DMRS: DeModulation Reference Signal, positioning reference signal (PRS), etc.
- CRS Cell-specific Reference Signal
- CSI-RS Channel State Information-Reference Signal
- DMRS DeModulation Reference Signal
- PRS positioning reference signal
- SRS Sounding Reference Signal
- DMRS demodulation reference signal
- PRS positioning reference signal
- DMRS Demodulation reference signal
- PRS positioning reference signal
- the radio frequency signal received by the transmission / reception antenna 101 is amplified by the amplifier unit 102.
- the transmitting and receiving unit 103 receives the upstream signal amplified by the amplifier unit 102.
- the transmission / reception unit 103 frequency-converts the received signal into a baseband signal and outputs the result to the baseband signal processing unit 104.
- the baseband signal processing unit 104 at least includes a control unit (scheduler) 301, a transmission signal generation unit 302, a mapping unit 303, a reception signal processing unit 304, and a measurement unit 305. Note that these configurations may be included in the wireless base station 10, and some or all of the configurations may not be included in the baseband signal processing unit 104.
- the transmission signal generation unit 302 generates, for example, DL assignment for notifying downlink data allocation information and / or UL grant for notifying uplink data allocation information, based on an instruction from the control unit 301.
- DL assignment and UL grant are both DCI and follow DCI format.
- coding processing and modulation processing are performed on the downlink data signal according to a coding rate, a modulation method, and the like determined based on channel state information (CSI: Channel State Information) and the like from each user terminal 20.
- CSI Channel State Information
- the measurement unit 305 performs measurement on the received signal.
- the measuring unit 305 can be configured from a measuring device, a measuring circuit or a measuring device described based on the common recognition in the technical field according to the present invention.
- the control unit 401 controls, for example, signal generation by the transmission signal generation unit 402, assignment of signals by the mapping unit 403, and the like. Further, the control unit 401 controls reception processing of a signal by the reception signal processing unit 404, measurement of a signal by the measurement unit 405, and the like.
- Mapping section 403 maps the uplink signal generated by transmission signal generation section 402 to a radio resource based on an instruction from control section 401, and outputs the uplink signal to transmission / reception section 203.
- the mapping unit 403 may be configured of a mapper, a mapping circuit or a mapping device described based on the common recognition in the technical field according to the present invention.
- a wireless base station, a user terminal, and the like in an embodiment of the present invention may function as a computer that performs the processing of the wireless communication method of the present invention.
- FIG. 10 is a diagram showing an example of a hardware configuration of a radio base station and a user terminal according to an embodiment of the present invention.
- the above-described wireless base station 10 and user terminal 20 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007 and the like. Good.
- a resource block may be configured by one or more resource elements (RE: Resource Element).
- RE Resource Element
- one RE may be one subcarrier and one symbol radio resource region.
- the input / output information, signals and the like may be stored in a specific place (for example, a memory) or may be managed using a management table. Information, signals, etc. input and output can be overwritten, updated or added. The output information, signals and the like may be deleted. The input information, signals and the like may be transmitted to other devices.
- the operation supposed to be performed by the base station may be performed by its upper node in some cases.
- various operations performed for communication with a terminal may be a base station, one or more network nodes other than the base station (eg, It is apparent that this can be performed by MME (Mobility Management Entity), S-GW (Serving-Gateway), etc. but not limited thereto or a combination thereof.
- MME Mobility Management Entity
- S-GW Serving-Gateway
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- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
第1の態様においては、SP-CSI報告のスキップが許可されない。SP-CSIがアクティベートされた後、特定の条件が満たされた場合に周期的なSP-CSI報告を送信しないことをスキップと呼ぶ。
第2の態様においては、SP-CSI報告のスキップが許可される。
UEが、SP-CSI報告によって運ばれるCSIをCRCによって符号化する場合のみ、SP-CSI報告のドロップ及び/又はスキップが可能であってもよい。換言すれば、SP-CSI報告のドロップ及び/又はスキップが可能である場合、UEは、SP-CSI報告によって運ばれるCSIをCRCによって符号化してもよい。
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、本発明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6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8は、本発明の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/又はソフトウェア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、物理的及び/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、物理的及び/又は論理的に分離した2つ以上の装置を直接的及び/又は間接的に(例えば、有線及び/又は無線を用いて)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、本明細書において説明した用語及び/又は本明細書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/又はシンボルは信号(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 (6)
- チャネル状態情報報告の設定情報を受信する受信部と、
前記チャネル状態情報報告のアクティベーションの指示の受信に応じて、前記設定情報に基づく前記チャネル状態情報報告の周期的な送信の開始を制御し、前記開始から前記チャネル状態情報報告のディアクティベーションまでの間において判定条件が満たされる場合、前記チャネル状態情報報告を送信しないことを制御する制御部と、を有することを特徴とするユーザ端末。 - 前記制御部は、前記指示に対する送達確認情報の送信を制御することを特徴とする請求項1に記載のユーザ端末。
- 前記判定条件は、前記チャネル状態情報報告を含む上り制御情報のサイズが所定サイズを超えることと、前記チャネル状態情報報告が所定の上り信号と衝突することと、前記チャネル状態情報報告のために設定されたリソースが下り制御情報によって上りリソース以外に設定されることと、の少なくとも1つであることを特徴とする請求項1又は請求項2に記載のユーザ端末。
- 前記判定条件は、測定されたチャネル品質が所定品質よりも低いことと、リスニングの結果がビジー状態であることと、前記チャネル状態情報報告を設定された部分帯域が切り替えられることと、の少なくとも1つであることを特徴とする請求項1から請求項3のいずれかに記載のユーザ端末。
- 前記制御部は、前記チャネル状態情報報告を巡回冗長検査によって符号化することを特徴とする請求項1から請求項4のいずれかに記載のユーザ端末。
- チャネル状態情報報告の設定情報を受信する工程と、
前記チャネル状態情報報告のアクティベーションの指示の受信に応じて、前記設定情報に基づく前記チャネル状態情報報告の周期的な送信の開始を制御し、前記開始から前記チャネル状態情報報告のディアクティベーションまでの間において判定条件が満たされる場合、前記チャネル状態情報報告を送信しないことを制御する工程と、を有することを特徴とするユーザ端末の無線通信方法。
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BR112020008925-7A BR112020008925A2 (pt) | 2017-11-10 | 2017-11-10 | terminal de usuário e método de radiocomunicação em um terminal de usuário |
CN201780098129.2A CN111602423B (zh) | 2017-11-10 | 2017-11-10 | 用户终端以及无线通信方法 |
PCT/JP2017/040645 WO2019092859A1 (ja) | 2017-11-10 | 2017-11-10 | ユーザ端末及び無線通信方法 |
EP17931446.3A EP3709701A4 (en) | 2017-11-10 | 2017-11-10 | USER TERMINAL DEVICE AND WIRELESS COMMUNICATION PROCEDURE |
US16/762,381 US11394443B2 (en) | 2017-11-10 | 2017-11-10 | User terminal and radio communication method |
JP2019551840A JP7035073B2 (ja) | 2017-11-10 | 2017-11-10 | 端末、無線通信方法、基地局及びシステム |
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EP (1) | EP3709701A4 (ja) |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2021049013A1 (ja) * | 2019-09-13 | 2021-03-18 | 株式会社Nttドコモ | 端末及び無線通信方法 |
US11533738B2 (en) * | 2019-06-28 | 2022-12-20 | Qualcomm Incorporated | Joint activation and/or release for multiple configured grant and/or semi-persistent scheduling configurations |
JP2023500699A (ja) * | 2019-11-07 | 2023-01-10 | 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) | アップリンククリアチャネルアセスメントを伴う半永続チャネル状態情報報告プロシージャ |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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BR112020008925A2 (pt) | 2020-10-13 |
CN111602423B (zh) | 2024-05-07 |
JPWO2019092859A1 (ja) | 2020-11-12 |
EP3709701A4 (en) | 2021-07-07 |
JP7035073B2 (ja) | 2022-03-14 |
CN111602423A (zh) | 2020-08-28 |
EP3709701A1 (en) | 2020-09-16 |
US20200358504A1 (en) | 2020-11-12 |
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