JP2020178364A - 無線通信システム及びユーザ装置 - Google Patents
無線通信システム及びユーザ装置 Download PDFInfo
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- JP2020178364A JP2020178364A JP2020122528A JP2020122528A JP2020178364A JP 2020178364 A JP2020178364 A JP 2020178364A JP 2020122528 A JP2020122528 A JP 2020122528A JP 2020122528 A JP2020122528 A JP 2020122528A JP 2020178364 A JP2020178364 A JP 2020178364A
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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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
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 (8)
- 無線基地局と、ユーザ装置とを具備する無線通信システムであって、
前記ユーザ装置は、Radio Resource Control(RRC)シグナリングを用いて送信される参照信号の第1の数を示す情報と、複数の参照信号と、を前記無線基地局から受信し、
前記ユーザ装置は、前記複数の参照信号の受信特性及び前記第1の数を示す情報に基づいて前記複数の参照信号から少なくとも一つの参照信号を選択し、
前記ユーザ装置は、前記少なくとも一つの参照信号を示すフィードバック情報を前記無線基地局に送信し、
前記少なくとも一つの参照信号の数は、前記第1の数である、
ことを特徴とする無線通信システム。 - 前記ユーザ装置が、前記複数の参照信号の中から受信特性が最も高い参照信号を選択することを特徴とする請求項1に記載の無線通信システム。
- 前記ユーザ装置が、前記複数の参照信号の中から受信特性が最も高い2以上の参照信号を選択することを特徴とする請求項1に記載の無線通信システム。
- 前記ユーザ装置が、前記複数の参照信号の中から受信特性が最も低い参照信号を選択することを特徴とする請求項1に記載の無線通信システム。
- Radio Resource Control(RRC)シグナリングを用いて送信される参照信号の第1の数を示す情報と、複数の参照信号と、を無線基地局から受信するアンテナと、
前記複数の参照信号の受信特性及び前記第1の数を示す情報に基づいて前記複数の参照信号から少なくとも一つの参照信号を選択する信号選択部と、を具備し、
前記アンテナは、前記少なくとも一つの参照信号を示すフィードバック情報を前記無線基地局に送信し、
前記少なくとも一つの参照信号の数は、前記第1の数であることを特徴とするユーザ装置。 - 前記信号選択部が、前記無線基地局から受信した前記複数の参照信号の中から受信特性が最も高い信号を選択することを特徴とする請求項5に記載のユーザ装置。
- 前記信号選択部が、前記無線基地局から受信した前記複数の参照信号の中から受信特性が最も高い2以上の信号を選択することを特徴とする請求項5に記載のユーザ装置。
- 前記信号選択部が、前記無線基地局から受信した前記複数の参照信号の中から受信特性が最も低い信号を選択することを特徴とする請求項5に記載のユーザ装置。
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Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 true JP2020178364A (ja) | 2020-10-29 |
JP2020178364A5 JP2020178364A5 (ja) | 2020-12-24 |
JP7082161B2 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) |
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SG11202009512VA (en) * | 2017-06-16 | 2020-10-29 | Zte Corp | Methods for transmission and reception of control information in a coordinated system |
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*** |
JP7333403B2 (ja) * | 2019-01-08 | 2023-08-24 | 北京小米移動軟件有限公司 | ダウンリンクデータ受信方法、送信方法、装置及び記憶媒体 |
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2016
- 2016-11-04 CN CN201680076652.0A patent/CN108781096A/zh active Pending
- 2016-11-04 JP JP2018522734A patent/JP2018538732A/ja active Pending
- 2016-11-04 CN CN202011576666.3A patent/CN112671443A/zh active Pending
- 2016-11-04 EP EP16863035.8A patent/EP3371894A4/en not_active Withdrawn
- 2016-11-04 US US15/773,308 patent/US10840990B2/en active Active
- 2016-11-04 WO PCT/US2016/060511 patent/WO2017079544A1/en active Application Filing
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2020
- 2020-07-17 JP JP2020122528A patent/JP7082161B2/ja active Active
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Publication number | Publication date |
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JP2018538732A (ja) | 2018-12-27 |
US20180331747A1 (en) | 2018-11-15 |
CN112671443A (zh) | 2021-04-16 |
WO2017079544A1 (en) | 2017-05-11 |
EP3371894A4 (en) | 2019-05-08 |
EP3371894A1 (en) | 2018-09-12 |
JP7082161B2 (ja) | 2022-06-07 |
CN108781096A (zh) | 2018-11-09 |
US10840990B2 (en) | 2020-11-17 |
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