JP7082161B2 - ユーザ装置及び無線通信システム - Google Patents
ユーザ装置及び無線通信システム Download PDFInfo
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- JP7082161B2 JP7082161B2 JP2020122528A JP2020122528A JP7082161B2 JP 7082161 B2 JP7082161 B2 JP 7082161B2 JP 2020122528 A JP2020122528 A JP 2020122528A JP 2020122528 A JP2020122528 A JP 2020122528A JP 7082161 B2 JP7082161 B2 JP 7082161B2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
- H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
Description
本発明は、2015年11月5日出願の「WIRELESS COMMUNICATION SYSTEM、 WIRELESS BASE STATION DEVICE、 AND USER EQUIPMENT」と題された米国仮出願第62/251198号の優先権を主張し、その内容のすべてを参照によりここに組み込むものとする。
を決定することができる。
Claims (4)
- 基地局から、Radio Resource Control(RRC)シグナリングを用いて送信される複数の参照信号の識別情報と、前記複数の参照信号と、を受信する受信部と、
前記複数の参照信号の受信特性と、前記識別情報と、に基づいて前記複数の参照信号から少なくとも2つの参照信号を選択する制御部と、
前記識別情報に基づいて、前記基地局に、前記少なくとも2つの参照信号を示すフィードバック情報を送信する送信部と、を有し、
前記受信部は、前記基地局から、ユーザ装置がビームグループで構成されるかどうかを示す情報を受信し、
前記情報に基づいて前記ユーザ装置がビームグループで構成される場合、前記制御部は、前記複数の参照信号から少なくとも1つの参照信号を選択することを特徴とするユーザ装置。 - 前記複数の参照信号のそれぞれは、チャネル状態情報参照信号(CSI-RS)であることを特徴とする請求項1に記載のユーザ装置。
- 基地局とユーザ装置とを有する無線通信システムであって、
前記基地局は、前記ユーザ装置に、Radio Resource Control(RRC)シグナリングを用いて送信される複数の参照信号の識別情報と、前記複数の参照信号と、を送信し、
前記ユーザ装置は、前記複数の参照信号の受信特性と、前記識別情報と、に基づいて、前記複数の参照信号から少なくとも2つの参照信号を選択し、
前記ユーザ装置は、前記識別情報に基づいて、前記基地局に、前記少なくとも2つの参照信号を示すフィードバック情報を送信し、
前記ユーザ装置は、前記基地局から、前記ユーザ装置がビームグループで構成されるかどうかを示す情報を受信し、
前記情報に基づいて前記ユーザ装置がビームグループで構成される場合、前記ユーザ装置は、前記複数の参照信号から少なくとも1つの参照信号を選択することを特徴とする無線通信システム。 - 前記複数の参照信号のそれぞれは、チャネル状態情報参照信号(CSI-RS)であることを特徴とする請求項3に記載の無線通信システム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US201562251198P | 2015-11-05 | 2015-11-05 | |
US62/251,198 | 2015-11-05 |
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JP2018522734A Division JP2018538732A (ja) | 2015-11-05 | 2016-11-04 | 無線通信システム、無線基地局及びユーザ装置 |
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JP2020178364A JP2020178364A (ja) | 2020-10-29 |
JP2020178364A5 JP2020178364A5 (ja) | 2020-12-24 |
JP7082161B2 true JP7082161B2 (ja) | 2022-06-07 |
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JP2020122528A Active JP7082161B2 (ja) | 2015-11-05 | 2020-07-17 | ユーザ装置及び無線通信システム |
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US (1) | US10840990B2 (ja) |
EP (1) | EP3371894A4 (ja) |
JP (2) | JP2018538732A (ja) |
CN (2) | CN108781096A (ja) |
WO (1) | WO2017079544A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11012882B2 (en) * | 2016-09-28 | 2021-05-18 | Lg Electronics Inc. | Method for interference measurement in wireless communication system and device therefor |
WO2018203779A1 (en) * | 2017-05-04 | 2018-11-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Cell change in a wireless communication system |
CN116963291A (zh) * | 2017-06-16 | 2023-10-27 | 中兴通讯股份有限公司 | 协调系统中控制信息的发送和接收方法 |
US11102776B2 (en) * | 2017-10-19 | 2021-08-24 | Apple Inc. | Apparatuses for selecting communication beams based on normalized time of arrival (ToA) of reference signals |
US11737072B2 (en) * | 2018-03-20 | 2023-08-22 | Lg Electronics Inc. | Method for determining transmission beam in wireless communication system supporting sidelink, and terminal therefor |
CN110475355B (zh) * | 2018-05-11 | 2023-06-23 | 华为技术有限公司 | 一种波束训练的方法、装置及系统 |
CN109891993B (zh) * | 2019-01-08 | 2021-10-26 | 北京小米移动软件有限公司 | 下行数据接收方法、发送方法、装置和储存介质 |
US11375421B2 (en) * | 2019-08-16 | 2022-06-28 | Apple Inc. | Cell handover in a radio cellular system |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8159998B2 (en) | 2002-12-27 | 2012-04-17 | Rockstar Bidco Lp | Method and apparatus for improving a transmission signal characteristic of a downlink signal in a time division multiple access wireless communication system |
CN101771446B (zh) * | 2008-12-29 | 2014-06-04 | 株式会社Ntt都科摩 | 一种多输入多输出信号处理方法、装置及系统 |
WO2011096646A2 (en) * | 2010-02-07 | 2011-08-11 | Lg Electronics Inc. | Method and apparatus for transmitting downlink reference signal in wireless communication system supporting multiple antennas |
EP2372940B1 (en) * | 2010-04-01 | 2020-09-16 | Alcatel Lucent | Method for scheduling users in a mobile or wireless communication system, corresponding mobile terminal and base station |
WO2012090453A1 (en) * | 2010-12-27 | 2012-07-05 | Nec Corporation | Base station and feedback information control method in radio communication system |
CN103597753B (zh) * | 2011-05-13 | 2017-02-15 | Lg电子株式会社 | 在无线通信系统中基于csi‑rs的信道评估方法及其装置 |
WO2013021556A1 (ja) * | 2011-08-05 | 2013-02-14 | パナソニック株式会社 | 端末、基地局、送信方法および受信方法 |
US9680537B2 (en) * | 2011-08-15 | 2017-06-13 | Ntt Docomo , Inc. | Radio base station, user terminal, radio communication system and radio communication method |
KR101981060B1 (ko) * | 2011-12-16 | 2019-05-24 | 삼성전자주식회사 | 무선 통신 시스템에서 신호 송신장치 및 방법 |
US8879496B2 (en) * | 2011-12-19 | 2014-11-04 | Ofinno Technologies, Llc | Beamforming codeword exchange between base stations |
KR20130127347A (ko) | 2012-05-10 | 2013-11-22 | 삼성전자주식회사 | 아날로그 및 디지털 하이브리드 빔포밍을 통한 통신 방법 및 장치 |
KR20130130593A (ko) * | 2012-05-22 | 2013-12-02 | 삼성전자주식회사 | 분산 안테나를 사용하는 복수 개의 기지국을 포함하는 무선통신 시스템에서 기준 신호 측정 방법 및 장치 |
US9912430B2 (en) * | 2012-07-06 | 2018-03-06 | Samsung Electronics Co. Ltd. | Method and apparatus for channel state information feedback reporting |
US10431888B2 (en) | 2012-07-31 | 2019-10-01 | Samsung Electronics Co., Ltd. | Communication method and device using beamforming in wireless communication system |
US9106386B2 (en) | 2012-08-03 | 2015-08-11 | Intel Corporation | Reference signal configuration for coordinated multipoint |
WO2014073846A1 (ko) * | 2012-11-07 | 2014-05-15 | 주식회사 팬택 | 무선통신시스템에서 채널 정보 송수신 방법 및 장치 |
US8971437B2 (en) | 2012-12-20 | 2015-03-03 | Google Technology Holdings LLC | Method and apparatus for antenna array channel feedback |
CN104956604B (zh) * | 2013-01-31 | 2018-09-28 | 高通股份有限公司 | 一种用于基于虚拟仰角端口的3d mimo csi反馈的方法和装置 |
EP2982194A1 (en) | 2013-04-03 | 2016-02-10 | Interdigital Patent Holdings, Inc. | Method and apparatus for controlling uplink transmission power based on accumulated transmit power control commands and corresponding uplink subframe sets |
JP6377744B2 (ja) * | 2013-07-29 | 2018-08-22 | エルジー エレクトロニクス インコーポレイティド | 無線通信システムにおいてNIB CoMP方法及び装置 |
WO2015020404A1 (ko) * | 2013-08-05 | 2015-02-12 | 삼성전자 주식회사 | 무선 통신 시스템에서 빔 그룹핑을 통한 레퍼런스 신호 송수신 방법 및 장치 |
KR102299326B1 (ko) * | 2013-09-27 | 2021-09-08 | 삼성전자주식회사 | 무선 통신 시스템에서 빔 정보 송수신 장치 및 방법 |
JP6364206B2 (ja) * | 2014-02-28 | 2018-07-25 | 株式会社Nttドコモ | 無線基地局、ユーザ端末および無線通信方法 |
JP2015185956A (ja) * | 2014-03-20 | 2015-10-22 | 株式会社Nttドコモ | ユーザ装置及び基地局 |
JP2015185953A (ja) * | 2014-03-20 | 2015-10-22 | 株式会社Nttドコモ | ビーム選択方法、基地局、およびユーザ装置 |
CN106797649B (zh) * | 2014-10-10 | 2021-06-04 | 瑞典爱立信有限公司 | 与灵活的csi配置和关联反馈有关的系统和方法 |
-
2016
- 2016-11-04 CN CN201680076652.0A patent/CN108781096A/zh active Pending
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- 2016-11-04 US US15/773,308 patent/US10840990B2/en active Active
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-
2020
- 2020-07-17 JP JP2020122528A patent/JP7082161B2/ja active Active
Non-Patent Citations (1)
Title |
---|
ZTE,Specification Impacts of Beamformed CSI-RS Configuration,3GPP TSG-RAN WG1#82 R1-154743,フランス,3GPP,2015年08月17日 |
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US10840990B2 (en) | 2020-11-17 |
JP2018538732A (ja) | 2018-12-27 |
CN112671443A (zh) | 2021-04-16 |
JP2020178364A (ja) | 2020-10-29 |
WO2017079544A1 (en) | 2017-05-11 |
EP3371894A1 (en) | 2018-09-12 |
EP3371894A4 (en) | 2019-05-08 |
CN108781096A (zh) | 2018-11-09 |
US20180331747A1 (en) | 2018-11-15 |
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