JPWO2021049172A1 - - Google Patents
Info
- Publication number
- JPWO2021049172A1 JPWO2021049172A1 JP2021545147A JP2021545147A JPWO2021049172A1 JP WO2021049172 A1 JPWO2021049172 A1 JP WO2021049172A1 JP 2021545147 A JP2021545147 A JP 2021545147A JP 2021545147 A JP2021545147 A JP 2021545147A JP WO2021049172 A1 JPWO2021049172 A1 JP WO2021049172A1
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter
-
- 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
- H04B7/0413—MIMO systems
- H04B7/0452—Multi-user MIMO systems
-
- 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
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
-
- 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
- H04B7/0617—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 for beam forming
-
- 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
- H04B7/0621—Feedback content
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
-
- 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
- H04B7/0645—Variable feedback
-
- 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
- H04B7/0697—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 spatial multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
-
- 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
- H04B7/0658—Feedback reduction
- H04B7/0663—Feedback reduction using vector or matrix manipulations
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019166253 | 2019-09-12 | ||
PCT/JP2020/027930 WO2021049172A1 (ja) | 2019-09-12 | 2020-07-17 | 通信装置及び通信方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPWO2021049172A1 true JPWO2021049172A1 (ja) | 2021-03-18 |
Family
ID=74866118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021545147A Pending JPWO2021049172A1 (ja) | 2019-09-12 | 2020-07-17 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220303030A1 (ja) |
JP (1) | JPWO2021049172A1 (ja) |
CN (1) | CN114303406A (ja) |
WO (1) | WO2021049172A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20240223243A1 (en) * | 2021-03-31 | 2024-07-04 | Ntt Docomo, Inc. | Terminal, radio communication method, and base station |
US20230125285A1 (en) * | 2021-10-27 | 2023-04-27 | Qualcomm Incorporated | Payload size reduction for reporting resource sensing measurements |
Family Cites Families (32)
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JP3679075B2 (ja) * | 2002-09-13 | 2005-08-03 | 松下電器産業株式会社 | 無線送信装置および無線送信方法 |
WO2006104104A1 (ja) * | 2005-03-29 | 2006-10-05 | Matsushita Electric Industrial Co., Ltd. | Mimo送信装置、mimo受信装置、および再送方法 |
US9130706B2 (en) * | 2005-05-26 | 2015-09-08 | Unwired Planet, Llc | Method and apparatus for signal quality loss compensation in multiplexing transmission systems |
CN101090286A (zh) * | 2006-06-12 | 2007-12-19 | 清华大学 | 无线系统、基站装置及终端装置 |
US7702029B2 (en) * | 2006-10-02 | 2010-04-20 | Freescale Semiconductor, Inc. | MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding |
US8077796B2 (en) * | 2007-03-05 | 2011-12-13 | Intel Corporation | Methods and arrangements for communicating in a multiple input multiple output system |
US20090141690A1 (en) * | 2007-10-01 | 2009-06-04 | Qualcomm Incorporated | Method and apparatus for uplink control signaling |
CN101841386B (zh) * | 2009-03-20 | 2014-11-05 | 中兴通讯股份有限公司 | 一种信道质量指示的反馈方法及系统 |
KR101534865B1 (ko) * | 2009-06-23 | 2015-07-27 | 엘지전자 주식회사 | 링크 적응 절차 수행 방법 |
CN105119642B (zh) * | 2009-09-27 | 2018-07-20 | Lg电子株式会社 | 接收信道质量指示符的方法及设备 |
US8675794B1 (en) * | 2009-10-13 | 2014-03-18 | Marvell International Ltd. | Efficient estimation of feedback for modulation and coding scheme (MCS) selection |
PL2499868T3 (pl) * | 2009-11-13 | 2014-12-31 | Interdigital Patent Holdings Inc | Sposób i urządzenie do obsługiwania czynności w zakresie zarządzania dla bardzo dużej przepustowości w komunikacji bezprzewodowej |
JP5189111B2 (ja) * | 2010-01-07 | 2013-04-24 | 株式会社エヌ・ティ・ティ・ドコモ | 無線基地局装置、無線通信システム及び無線通信方法 |
CN102696182B (zh) * | 2010-11-26 | 2015-08-26 | Lg电子株式会社 | 在无线局域网中基于链路自适应来报告信道信息的方法以及用于该方法的装置 |
US20120140842A1 (en) * | 2010-12-06 | 2012-06-07 | Qualcomm Incorporated | Signaling to protect advanced receiver performance in wireless local area networks (lans) |
US9559884B2 (en) * | 2011-02-07 | 2017-01-31 | Intel Corporation | Co-phasing of transmissions from multiple infrastructure nodes |
US9344176B2 (en) * | 2011-08-19 | 2016-05-17 | Quintel Technology Limited | Method and apparatus for providing elevation plane spatial beamforming |
CN103001682B (zh) * | 2011-09-14 | 2015-03-11 | 华为技术有限公司 | 一种数据反馈方法以及相关装置 |
US9048894B2 (en) * | 2012-05-22 | 2015-06-02 | Mediatek Singapore Pte. Ltd. | Method and apparatus of beam training for MIMO operation |
US9730050B2 (en) * | 2013-03-29 | 2017-08-08 | Intel IP Corporation | Enodeb reference signal reduction |
WO2015018068A1 (zh) * | 2013-08-09 | 2015-02-12 | 富士通株式会社 | 信息交互方法、基站以及通信系统 |
JP6121931B2 (ja) * | 2014-03-20 | 2017-04-26 | 株式会社Nttドコモ | 移動通信システム、基地局、およびユーザ装置 |
CN106464415B (zh) * | 2014-08-18 | 2019-01-04 | 松下电器产业株式会社 | 多输入多输出训练方法及无线装置 |
WO2017011179A1 (en) * | 2015-07-14 | 2017-01-19 | Intel IP Corporation | Short resource requests |
US20170054542A1 (en) * | 2015-08-19 | 2017-02-23 | Qualcomm Incorporated | Sounding design for channel feedback |
WO2017030295A1 (ko) * | 2015-08-19 | 2017-02-23 | 엘지전자(주) | 무선 통신 시스템에서 채널 상태의 피드백 방법 및 이를 위한 장치 |
US10110284B2 (en) * | 2016-11-03 | 2018-10-23 | At&T Intellectual Property I, L.P. | Providing a format indicator comprising rank indication and channel state information spatial domain resolution type |
CN109687895A (zh) * | 2017-10-19 | 2019-04-26 | 华为技术有限公司 | 波束训练方法和波束训练装置 |
US10998944B2 (en) * | 2018-09-14 | 2021-05-04 | Samsung Electronics Co., Ltd. | System and method for applying smoothed beamforming |
US20200274592A1 (en) * | 2019-02-27 | 2020-08-27 | Qualcomm Incorporated | Null-space-projection-based channel decompostion for beamforming |
US11272427B2 (en) * | 2019-05-10 | 2022-03-08 | Huawei Technologies Co., Ltd. | Systems and methods for capability indication for a wireless receiving station |
EP4024938A4 (en) * | 2019-08-29 | 2022-09-14 | Panasonic Intellectual Property Corporation of America | WIRELESS COMMUNICATIONS DEVICE, AND WIRELESS COMMUNICATIONS METHOD |
-
2020
- 2020-07-17 CN CN202080060316.3A patent/CN114303406A/zh active Pending
- 2020-07-17 WO PCT/JP2020/027930 patent/WO2021049172A1/ja active Application Filing
- 2020-07-17 US US17/638,146 patent/US20220303030A1/en active Pending
- 2020-07-17 JP JP2021545147A patent/JPWO2021049172A1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2021049172A1 (ja) | 2021-03-18 |
CN114303406A (zh) | 2022-04-08 |
US20220303030A1 (en) | 2022-09-22 |
Similar Documents
Legal Events
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A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20230526 |
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Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20240625 |
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