WO2007126036A1 - Wireless communication system, wireless communication apparatus, and wireless communication method - Google Patents
Wireless communication system, wireless communication apparatus, and wireless communication method Download PDFInfo
- Publication number
- WO2007126036A1 WO2007126036A1 PCT/JP2007/059135 JP2007059135W WO2007126036A1 WO 2007126036 A1 WO2007126036 A1 WO 2007126036A1 JP 2007059135 W JP2007059135 W JP 2007059135W WO 2007126036 A1 WO2007126036 A1 WO 2007126036A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- terminal
- antennas
- beamforming
- receiver
- wireless communication
- Prior art date
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Classifications
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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
- H04B7/0613—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
-
- 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
- H04B7/0413—MIMO systems
- H04B7/0417—Feedback systems
- H04B7/0421—Feedback systems utilizing implicit feedback, e.g. steered pilot signals
-
- 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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
- H04B7/0473—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking constraints in layer or codeword to antenna mapping into account
-
- 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
- H04B7/0628—Diversity capabilities
-
- 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0862—Weighted combining receiver computing weights based on information from the transmitter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
Description
Claims
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07742570.0A EP2011250B1 (en) | 2006-04-27 | 2007-04-20 | Wireless communication system, wireless communication apparatus, and wireless communication method |
CN2007800006434A CN101326742B (en) | 2006-04-27 | 2007-04-20 | Wireless communication method, wireless communication device and wireless communication system |
EP19157083.7A EP3506526B1 (en) | 2006-04-27 | 2007-04-20 | Wireless communication system, wireless communication apparatus, and wireless communication method |
KR1020077027615A KR101336180B1 (en) | 2006-04-27 | 2007-04-20 | Wireless communication system, wireless communication apparatus, and wireless communication method |
US11/913,165 US8260198B2 (en) | 2006-04-27 | 2007-04-20 | Wireless communication system, wireless communication apparatus, and wireless communication method |
US13/541,294 US8532569B2 (en) | 2006-04-27 | 2012-07-03 | Wireless communication system, wireless communication apparatus, and wireless communication method |
US13/541,273 US8768246B2 (en) | 2006-04-27 | 2012-07-03 | Wireless communication system, wireless communication apparatus, and wireless communication method |
US13/958,441 US8774711B2 (en) | 2006-04-27 | 2013-08-02 | Wireless communication system, wireless communication apparatus, and wireless communication method |
US13/958,177 US8706028B2 (en) | 2006-04-27 | 2013-08-02 | Wireless communication system, wireless communication apparatus, and wireless communication method |
US13/958,484 US8768247B2 (en) | 2006-04-27 | 2013-08-02 | Wireless communication system, wireless communication apparatus, and wireless communication method |
US13/958,356 US8699477B2 (en) | 2006-04-27 | 2013-08-02 | Wireless communication system, wireless communication apparatus, and wireless communication method |
US14/284,841 US9331762B2 (en) | 2006-04-27 | 2014-05-22 | Wireless communication system, wireless communication apparatus, and wireless communication method |
US15/084,782 US9900071B2 (en) | 2006-04-27 | 2016-03-30 | Wireless communication system, wireless communication apparatus, and wireless communication method |
US15/376,995 US9825680B2 (en) | 2006-04-27 | 2016-12-13 | Wireless communication system, wireless communication apparatus, and wireless communication method |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006124536 | 2006-04-27 | ||
JP2006-124536 | 2006-04-27 | ||
JP2007056244A JP4775288B2 (en) | 2006-04-27 | 2007-03-06 | Wireless communication system, wireless communication apparatus, and wireless communication method |
JP2007-056244 | 2007-03-06 |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/913,165 A-371-Of-International US8260198B2 (en) | 2006-04-27 | 2007-04-20 | Wireless communication system, wireless communication apparatus, and wireless communication method |
US13/541,294 Division US8532569B2 (en) | 2006-04-27 | 2012-07-03 | Wireless communication system, wireless communication apparatus, and wireless communication method |
US13/541,273 Division US8768246B2 (en) | 2006-04-27 | 2012-07-03 | Wireless communication system, wireless communication apparatus, and wireless communication method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007126036A1 true WO2007126036A1 (en) | 2007-11-08 |
Family
ID=38294174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/059135 WO2007126036A1 (en) | 2006-04-27 | 2007-04-20 | Wireless communication system, wireless communication apparatus, and wireless communication method |
Country Status (6)
Country | Link |
---|---|
US (10) | US8260198B2 (en) |
EP (3) | EP3098977B1 (en) |
JP (1) | JP4775288B2 (en) |
KR (1) | KR101336180B1 (en) |
CN (2) | CN101326742B (en) |
WO (1) | WO2007126036A1 (en) |
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CN102239711A (en) * | 2009-07-01 | 2011-11-09 | 华为技术有限公司 | Method and device for feeding back channel information and acquiring channel matrix |
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US8532212B2 (en) | 2008-10-10 | 2013-09-10 | Sony Corporation | Wireless communication system, wireless communication device, wireless communication method and computer program |
US8699613B2 (en) | 2006-04-27 | 2014-04-15 | Sony Corporation | Wireless communication system, wireless communication apparatus, and wireless communication method |
US8699477B2 (en) | 2006-04-27 | 2014-04-15 | Sony Corporation | Wireless communication system, wireless communication apparatus, and wireless communication method |
US8699405B2 (en) | 2006-04-27 | 2014-04-15 | Sony Corporation | Wireless communication system, wireless communication apparatus and wireless communication method |
USRE45150E1 (en) | 2006-04-27 | 2014-09-23 | Sony Corporation | Wireless communication system, wireless communication apparatus and wireless communication method |
US10523298B2 (en) | 2015-06-23 | 2019-12-31 | Fujitsu Limited | Method for controlling wireless communication, wireless communication system, reception device, and transmission device |
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