JP2020510383A - 無線通信システムにおける端末のサウンディング方法及びこのための装置 - Google Patents
無線通信システムにおける端末のサウンディング方法及びこのための装置 Download PDFInfo
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- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
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- 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
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- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
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- H—ELECTRICITY
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- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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- H—ELECTRICITY
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- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
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- H—ELECTRICITY
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- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
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- H—ELECTRICITY
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- H04W72/00—Local resource management
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- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- H—ELECTRICITY
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- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
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- H—ELECTRICITY
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- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
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- 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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W80/02—Data link layer protocols
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
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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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Abstract
Description
Claims (14)
- 無線通信システムにおけるユーザ装置(UE:User Equipment)が上向きリンク送信する方法であって、
基地局からサウンディング参照信号(SRS:Sounding Reference Signal)設定情報を受信するステップにおいて、前記SRS設定情報は、SRS資源セット別にSRSの電力制御のためのパラメータセットを含み、前記SRS資源セットは、一つ以上のSRS資源を含むステップと、
前記SRSの電力制御のためのパラメータセットに基づいて、前記SRSの送信電力(transmission power)を決定するステップと、
前記SRSを前記基地局に送信するステップと、を含む、上向きリンク送信方法。 - 前記SRSの電力制御のためのパラメータセットにより指示された下向きリンク参照信号を利用して、前記UEにより計算された下向きリンク経路−損失(path−loss)推定値に基づいて、前記SRSの送信電力(transmission power)が決定される、請求項1に記載の上向きリンク送信方法。
- 前記下向きリンク参照信号は、同期信号ブロック(SSB:Synchronization Signal Block)及びチャネル状態情報参照信号(CSI−RS:Channel State Information Reference Signal)を含む、請求項2に記載の上向きリンク送信方法。
- 前記下向きリンク参照信号は、前記基地局により送信される媒体接続制御(MAC:Medium Access Control)制御要素(CE:Control Element)により変更される、請求項2に記載の上向きリンク送信方法。
- 前記SRS資源セットに共通的に送信電力制御(TPC:Transmit Power Control)累積(accumulation)を適用することによって、前記SRSの送信電力(transmission power)が決定される、請求項1に記載の上向きリンク送信方法。
- 前記SRSの送信電力(transmission power)の調整のための電力制御調整(power control adjustment)は、特定SRS送信区間別に独立的に適用される、請求項1に記載の上向きリンク送信方法。
- 前記電力制御調整がトリガーされると、前記SRSの送信電力(transmission power)が決定されたことと無関係に、前記すべてのSRS資源上において前記SRSの送信電力値(power value)は、全部同一に調整される、請求項6に記載の上向きリンク送信方法。
- 前記調整された送信電力値が一定値を超過する時に、前記調整された送信電力値が一括的に縮小(scaling down)される、請求項7に記載の上向きリンク送信方法。
- 前記基地局からPUSCH(Physical Uplink Shared Channel)スケジューリング情報を含む下向きリンク制御情報(DCI:Downlink Control Information)を受信するステップにおいて、前記DCIは、SRS資源指示子(SRI:SRS resource indicator)を含むステップと、
前記SRIから決定された前記PUSCHの電力制御のためのパラメータセットに基づいて、前記PUSCH送信電力(transmission power)を決定するステップと、
前記PUSCHを前記基地局に送信するステップと、をさらに含む、請求項1に記載の上向きリンク送信方法。 - 前記SRIにより複数のSRS資源が指示され、前記複数のSRS資源の各々に対して互いに異なるレイヤーグループが設定される時、前記レイヤーグループ別に前記PUSCHの電力制御のためのパラメータセットが個別的に決定される、請求項9に記載の上向きリンク送信方法。
- 前記PUSCHの電力制御のためのパラメータセットにより指示された下向きリンク参照信号を利用して、前記UEにより計算された下向きリンク経路−損失(path−loss)推定値に基づいて、前記PUSCHの送信電力(transmission power)が決定される、請求項9に記載の上向きリンク送信方法。
- 前記下向きリンク参照信号は、前記基地局により送信される媒体接続制御(MAC:Medium Access Control)制御要素(CE:Control Element)により変更される、請求項11に記載の上向きリンク送信方法。
- 下向きリンク参照信号を利用して前記UEにより計算された下向きリンク経路−損失(path−loss)推定値に基づいて、PUSCH(Physical Uplink Shared Channel)の送信電力(transmission power)を決定するステップと、
前記PUSCHを前記基地局に送信するステップと、をさらに含み、
前記基地局から前記下向きリンク参照信号に対する情報が提供されない時、前記経路−損失(path−loss)推定値は、相対的に最も大きな電力レベルを有する下向きリンク参照信号を利用して計算される、請求項1に記載の上向きリンク送信方法。 - 無線通信システムにおける上向きリンク送信を行うユーザ装置(UE:User Equipment)において、
無線信号を送受信するための送受信機(transceiver)と、
前記送受信機を制御するプロセッサと、を含み、
前記プロセッサは、基地局からサウンディング参照信号(SRS:Sounding Reference Signal)設定情報を受信するものの、前記SRS設定情報は、SRS資源セット別にSRSの電力制御のためのパラメータセットを含み、前記SRS資源セットは、一つ以上のSRS資源を含み、
前記SRSの電力制御のためのパラメータセットに基づいて、前記SRSの送信電力(transmission power)を決定し、
前記SRSを前記基地局に送信するように構成される、ユーザ装置。
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PCT/KR2018/005225 WO2018203728A1 (ko) | 2017-05-04 | 2018-05-04 | 무선 통신 시스템에서 상향링크 송수신 방법 및 이를 위한 장치 |
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CN110710281B (zh) | 2022-06-14 |
JP6968914B2 (ja) | 2021-11-17 |
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AU2018263238A1 (en) | 2019-05-16 |
AU2018263238B2 (en) | 2021-01-28 |
JP7324259B2 (ja) | 2023-08-09 |
SG11201903386WA (en) | 2019-05-30 |
EP3930389A1 (en) | 2021-12-29 |
US10708088B2 (en) | 2020-07-07 |
RU2019139249A3 (ja) | 2021-08-02 |
US10439847B2 (en) | 2019-10-08 |
US20190199554A1 (en) | 2019-06-27 |
CN110710281A (zh) | 2020-01-17 |
WO2018203728A1 (ko) | 2018-11-08 |
JP2022009455A (ja) | 2022-01-14 |
US20220191065A1 (en) | 2022-06-16 |
KR102247028B1 (ko) | 2021-04-29 |
KR102453541B1 (ko) | 2022-10-11 |
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US11063788B2 (en) | 2021-07-13 |
KR20190039398A (ko) | 2019-04-11 |
US20200287753A1 (en) | 2020-09-10 |
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KR20210049960A (ko) | 2021-05-06 |
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