WO2004038952A3 - Channel estimation and spatial processing for tdd mimo systems - Google Patents
Channel estimation and spatial processing for tdd mimo systems Download PDFInfo
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- WO2004038952A3 WO2004038952A3 PCT/US2003/034567 US0334567W WO2004038952A3 WO 2004038952 A3 WO2004038952 A3 WO 2004038952A3 US 0334567 W US0334567 W US 0334567W WO 2004038952 A3 WO2004038952 A3 WO 2004038952A3
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- 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
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
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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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
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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
- H04B7/0413—MIMO systems
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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
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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
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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
- H04B7/0667—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 delayed versions of same signal
- H04B7/0669—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 delayed versions of same signal using different channel coding between antennas
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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
- H04B7/0697—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
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- H—ELECTRICITY
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- H04B7/00—Radio transmission systems, i.e. using radiation field
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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
- 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
- H04B7/0848—Joint weighting
- H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
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- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
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- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
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- H04L25/024—Channel estimation channel estimation algorithms
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- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03343—Arrangements at the transmitter end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
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- H04L27/2601—Multicarrier modulation systems
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- 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
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
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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
- H04B7/0619—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
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- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
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- H—ELECTRICITY
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- 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
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- H04L25/0224—Channel estimation using sounding signals
- H04L25/0226—Channel estimation using sounding signals sounding signals per se
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- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
Abstract
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2502804A CA2502804C (en) | 2002-10-25 | 2003-10-24 | Channel estimation and spatial processing for tdd mimo systems |
BRPI0315558-7A BRPI0315558B1 (en) | 2002-10-25 | 2003-10-24 | channel estimation and spatial processing for mimo tdd systems |
AU2003287328A AU2003287328C1 (en) | 2002-10-25 | 2003-10-24 | Channel estimation and spatial processing for TDD mimo systems |
UAA200504942A UA85830C2 (en) | 2002-10-25 | 2003-10-24 | Channel estimation and spatial processing for tdd мімо system |
CN200380107050.XA CN1729634B (en) | 2002-10-25 | 2003-10-24 | Channel estimation and spatial processing for TDD MIMO systems |
BR0315558-7A BR0315558A (en) | 2002-10-25 | 2003-10-24 | Channel estimation and spatial processing for tdd minimal systems |
EP03781560A EP1559209B1 (en) | 2002-10-25 | 2003-10-24 | Channel estimation and spatial processing for tdd mimo systems |
ES03781560T ES2407839T3 (en) | 2002-10-25 | 2003-10-24 | Channel estimation and spatial processing for MIMO TDD systems |
KR1020057007178A KR101060412B1 (en) | 2002-10-25 | 2003-10-24 | Channel Estimation and Spatial Processing Methods for TMD MIMO Systems |
MXPA05004318A MXPA05004318A (en) | 2002-10-25 | 2003-10-24 | Channel estimation and spatial processing for tdd mimo systems. |
JP2004547250A JP4860925B2 (en) | 2002-10-25 | 2003-10-24 | Channel estimation and spatial processing for TDD MIMO systems |
IL167979A IL167979A0 (en) | 2002-10-25 | 2005-04-12 | Channel estimation and spatial processing for tdd mimo systems |
AU2009203088A AU2009203088A1 (en) | 2002-10-25 | 2009-07-30 | Channel estimation and spatial processing for TDD mimo systems |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42130902P | 2002-10-25 | 2002-10-25 | |
US42146202P | 2002-10-25 | 2002-10-25 | |
US42142802P | 2002-10-25 | 2002-10-25 | |
US60/421,309 | 2002-10-25 | ||
US60/421,462 | 2002-10-25 | ||
US60/421,428 | 2002-10-25 | ||
US10/693,171 US7151809B2 (en) | 2002-10-25 | 2003-10-23 | Channel estimation and spatial processing for TDD MIMO systems |
US10/693,171 | 2003-10-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004038952A2 WO2004038952A2 (en) | 2004-05-06 |
WO2004038952A3 true WO2004038952A3 (en) | 2004-06-03 |
Family
ID=32180696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2003/034567 WO2004038952A2 (en) | 2002-10-25 | 2003-10-24 | Channel estimation and spatial processing for tdd mimo systems |
Country Status (13)
Country | Link |
---|---|
US (2) | US7151809B2 (en) |
EP (1) | EP1559209B1 (en) |
JP (2) | JP4860925B2 (en) |
KR (1) | KR101060412B1 (en) |
AU (2) | AU2003287328C1 (en) |
BR (2) | BR0315558A (en) |
CA (3) | CA2753327C (en) |
ES (1) | ES2407839T3 (en) |
IL (1) | IL167979A0 (en) |
MX (1) | MXPA05004318A (en) |
TW (1) | TWI358914B (en) |
UA (1) | UA85830C2 (en) |
WO (1) | WO2004038952A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8670500B2 (en) | 2007-09-19 | 2014-03-11 | Lg Electronics Inc. | Data transmitting and receiving method using phase shift based precoding and transceiver supporting the same |
US9013974B2 (en) | 2002-10-25 | 2015-04-21 | Qualcomm Incorporated | MIMO WLAN system |
Families Citing this family (118)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8194770B2 (en) | 2002-08-27 | 2012-06-05 | Qualcomm Incorporated | Coded MIMO systems with selective channel inversion applied per eigenmode |
US8570988B2 (en) | 2002-10-25 | 2013-10-29 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
US8218609B2 (en) | 2002-10-25 | 2012-07-10 | Qualcomm Incorporated | Closed-loop rate control for a multi-channel communication system |
US7986742B2 (en) | 2002-10-25 | 2011-07-26 | Qualcomm Incorporated | Pilots for MIMO communication system |
US8208364B2 (en) | 2002-10-25 | 2012-06-26 | Qualcomm Incorporated | MIMO system with multiple spatial multiplexing modes |
US7002900B2 (en) | 2002-10-25 | 2006-02-21 | Qualcomm Incorporated | Transmit diversity processing for a multi-antenna communication system |
US8134976B2 (en) * | 2002-10-25 | 2012-03-13 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
US8169944B2 (en) | 2002-10-25 | 2012-05-01 | Qualcomm Incorporated | Random access for wireless multiple-access communication systems |
US7324429B2 (en) * | 2002-10-25 | 2008-01-29 | Qualcomm, Incorporated | Multi-mode terminal in a wireless MIMO system |
US8170513B2 (en) | 2002-10-25 | 2012-05-01 | Qualcomm Incorporated | Data detection and demodulation for wireless communication systems |
US20040081131A1 (en) | 2002-10-25 | 2004-04-29 | Walton Jay Rod | OFDM communication system with multiple OFDM symbol sizes |
US7151809B2 (en) * | 2002-10-25 | 2006-12-19 | Qualcomm, Incorporated | Channel estimation and spatial processing for TDD MIMO systems |
US7885228B2 (en) | 2003-03-20 | 2011-02-08 | Qualcomm Incorporated | Transmission mode selection for data transmission in a multi-channel communication system |
US7389096B2 (en) * | 2003-04-07 | 2008-06-17 | Bellow Bellows Llc | Monitoring system using multi-antenna transceivers |
US7668201B2 (en) * | 2003-08-28 | 2010-02-23 | Symbol Technologies, Inc. | Bandwidth management in wireless networks |
US7440510B2 (en) * | 2003-09-15 | 2008-10-21 | Intel Corporation | Multicarrier transmitter, multicarrier receiver, and methods for communicating multiple spatial signal streams |
US7298805B2 (en) | 2003-11-21 | 2007-11-20 | Qualcomm Incorporated | Multi-antenna transmission for spatial division multiple access |
US9473269B2 (en) | 2003-12-01 | 2016-10-18 | Qualcomm Incorporated | Method and apparatus for providing an efficient control channel structure in a wireless communication system |
US8204149B2 (en) | 2003-12-17 | 2012-06-19 | Qualcomm Incorporated | Spatial spreading in a multi-antenna communication system |
US20050135321A1 (en) * | 2003-12-17 | 2005-06-23 | Jacob Sharony | Spatial wireless local area network |
US7289585B2 (en) * | 2004-01-12 | 2007-10-30 | Intel Corporation | Multicarrier receivers and methods for separating transmitted signals in a multiple antenna system |
US7336746B2 (en) | 2004-12-09 | 2008-02-26 | Qualcomm Incorporated | Data transmission with spatial spreading in a MIMO communication system |
US8169889B2 (en) | 2004-02-18 | 2012-05-01 | Qualcomm Incorporated | Transmit diversity and spatial spreading for an OFDM-based multi-antenna communication system |
US7206354B2 (en) * | 2004-02-19 | 2007-04-17 | Qualcomm Incorporated | Calibration of downlink and uplink channel responses in a wireless MIMO communication system |
US8077691B2 (en) | 2004-03-05 | 2011-12-13 | Qualcomm Incorporated | Pilot transmission and channel estimation for MISO and MIMO receivers in a multi-antenna system |
US8285226B2 (en) * | 2004-05-07 | 2012-10-09 | Qualcomm Incorporated | Steering diversity for an OFDM-based multi-antenna communication system |
US8923785B2 (en) * | 2004-05-07 | 2014-12-30 | Qualcomm Incorporated | Continuous beamforming for a MIMO-OFDM system |
JP4099592B2 (en) * | 2004-06-10 | 2008-06-11 | ソニー株式会社 | COMMUNICATION SYSTEM, TRANSMISSION DEVICE, AND RECEPTION DEVICE |
US7570696B2 (en) * | 2004-06-25 | 2009-08-04 | Intel Corporation | Multiple input multiple output multicarrier communication system and methods with quantized beamforming feedback |
US7110463B2 (en) * | 2004-06-30 | 2006-09-19 | Qualcomm, Incorporated | Efficient computation of spatial filter matrices for steering transmit diversity in a MIMO communication system |
US7978649B2 (en) | 2004-07-15 | 2011-07-12 | Qualcomm, Incorporated | Unified MIMO transmission and reception |
KR101075741B1 (en) * | 2004-08-17 | 2011-10-21 | 엘지전자 주식회사 | Method for transmitting signals through three-antennas of terminal |
US7978778B2 (en) | 2004-09-03 | 2011-07-12 | Qualcomm, Incorporated | Receiver structures for spatial spreading with space-time or space-frequency transmit diversity |
US7366245B2 (en) * | 2004-09-10 | 2008-04-29 | Intel Corporation | Calibration in MIMO systems |
US7649861B2 (en) * | 2004-11-30 | 2010-01-19 | Intel Corporation | Multiple antenna multicarrier communication system and method with reduced mobile-station processing |
US7822128B2 (en) * | 2004-12-03 | 2010-10-26 | Intel Corporation | Multiple antenna multicarrier transmitter and method for adaptive beamforming with transmit-power normalization |
US7719993B2 (en) | 2004-12-30 | 2010-05-18 | Intel Corporation | Downlink transmit beamforming |
US7551547B2 (en) | 2005-01-28 | 2009-06-23 | At&T Intellectual Property I, L.P. | Delay restricted channel estimation for multi-carrier systems |
US9246560B2 (en) * | 2005-03-10 | 2016-01-26 | Qualcomm Incorporated | Systems and methods for beamforming and rate control in a multi-input multi-output communication systems |
JP2006270730A (en) * | 2005-03-25 | 2006-10-05 | Kyocera Corp | Radio communication method, radio communication system, and radio communication apparatus |
US7830988B2 (en) | 2005-03-28 | 2010-11-09 | Nec Corporation | MIMO decoder and MIMO decoding method |
US20060221928A1 (en) * | 2005-03-31 | 2006-10-05 | Jacob Sharony | Wireless device and method for wireless multiple access |
US20060221904A1 (en) * | 2005-03-31 | 2006-10-05 | Jacob Sharony | Access point and method for wireless multiple access |
US20060221873A1 (en) * | 2005-03-31 | 2006-10-05 | Jacob Sharony | System and method for wireless multiple access |
US8483200B2 (en) | 2005-04-07 | 2013-07-09 | Interdigital Technology Corporation | Method and apparatus for antenna mapping selection in MIMO-OFDM wireless networks |
TWI443988B (en) * | 2005-04-07 | 2014-07-01 | Interdigital Tech Corp | Method and apparatus for antenna mapping selection in mimo-ofdm wireless networks |
US8706048B2 (en) * | 2006-07-14 | 2014-04-22 | Broadcom Corporation | Method and system for explicit feedback with sounding packet for wireless local area networks (WLAN) |
US7466749B2 (en) | 2005-05-12 | 2008-12-16 | Qualcomm Incorporated | Rate selection with margin sharing |
US8498669B2 (en) | 2005-06-16 | 2013-07-30 | Qualcomm Incorporated | Antenna array calibration for wireless communication systems |
US8358714B2 (en) | 2005-06-16 | 2013-01-22 | Qualcomm Incorporated | Coding and modulation for multiple data streams in a communication system |
US20070042741A1 (en) * | 2005-08-15 | 2007-02-22 | Research In Motion Limited | Wireless Communications Device Including a Joint Space-Time Optimum Filters (JSTOF) Using QR and Eigenvalue Decompositions |
CA2516124A1 (en) * | 2005-08-15 | 2007-02-15 | Research In Motion Limited | Implementation of joint space-time optimum filters (jstof) using singular value decompositions |
US20070049232A1 (en) * | 2005-08-15 | 2007-03-01 | Research In Motion Limited | Joint Space-Time Optimum Filter (JSTOF) Using QR and Eigenvalue Decompositions |
CA2516521A1 (en) * | 2005-08-15 | 2007-02-15 | Research In Motion Limited | Implementation of joint space-time optimum filters (jstof) using singular value decompositions |
US20070037540A1 (en) * | 2005-08-15 | 2007-02-15 | Research In Motion Limited | Joint Space-Time Optimum Filters (JSTOF) Using Singular Value Decompositions (SVD) |
US20070049233A1 (en) * | 2005-08-15 | 2007-03-01 | Research In Motion Limited | Wireless Communications Device Including a Joint Space-Time Optimum Filters (JSTOF) Using Singular Value Decompositions (SVD) |
CA2516192A1 (en) * | 2005-08-15 | 2007-02-15 | Research In Motion Limited | Implementation of joint space-time optimum filters (jstof) using qr and eigenvalue decompositions |
CA2515997A1 (en) * | 2005-08-15 | 2007-02-15 | Research In Motion Limited | Implementation of joint space-time optimum filters (jstof) using qr and eigenvalue decompositions |
WO2007035993A1 (en) * | 2005-09-29 | 2007-04-05 | Prescient Networks Pty Ltd | Channel tracking for mimo receivers |
US7778607B2 (en) * | 2005-10-31 | 2010-08-17 | The Mitre Corporation | Echo MIMO: a method for optimal multiple input multiple output channel estimation and matched cooperative beamforming |
JP4903805B2 (en) * | 2005-11-02 | 2012-03-28 | クゥアルコム・インコーポレイテッド | Antenna array calibration for multi-input multi-output wireless communication systems |
US9118111B2 (en) | 2005-11-02 | 2015-08-25 | Qualcomm Incorporated | Antenna array calibration for wireless communication systems |
US8280430B2 (en) | 2005-11-02 | 2012-10-02 | Qualcomm Incorporated | Antenna array calibration for multi-input multi-output wireless communication systems |
US7570210B1 (en) | 2005-12-12 | 2009-08-04 | Marvell International Ltd. | Steering matrix feedback for beamforming |
US8102830B2 (en) * | 2005-12-16 | 2012-01-24 | Samsung Electronics Co., Ltd. | MIMO radio communication apparatus and method |
JP4958565B2 (en) * | 2006-01-06 | 2012-06-20 | パナソニック株式会社 | Wireless communication device |
US20070160016A1 (en) * | 2006-01-09 | 2007-07-12 | Amit Jain | System and method for clustering wireless devices in a wireless network |
US8543070B2 (en) | 2006-04-24 | 2013-09-24 | Qualcomm Incorporated | Reduced complexity beam-steered MIMO OFDM system |
US8340597B1 (en) * | 2006-05-02 | 2012-12-25 | Marvell International Ltd. | Calibration correction for implicit beamforming in a wireless MIMO communication system |
US8290089B2 (en) | 2006-05-22 | 2012-10-16 | Qualcomm Incorporated | Derivation and feedback of transmit steering matrix |
KR20070113967A (en) | 2006-05-26 | 2007-11-29 | 엘지전자 주식회사 | Phase shift based precoding method and tranceiver supporting the same |
TWI343200B (en) | 2006-05-26 | 2011-06-01 | Lg Electronics Inc | Method and apparatus for signal generation using phase-shift based pre-coding |
WO2007145556A1 (en) * | 2006-06-16 | 2007-12-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for channel quality measures in a multiple antenna system. |
US8787841B2 (en) | 2006-06-27 | 2014-07-22 | Qualcomm Incorporated | Method and system for providing beamforming feedback in wireless communication systems |
US20080003948A1 (en) * | 2006-06-29 | 2008-01-03 | Patrick Mitran | Calibration systems and techniques for distributed beamforming |
KR100992418B1 (en) * | 2006-07-12 | 2010-11-05 | 삼성전자주식회사 | Apparatus and method for removing of interference in multi antenna system transmitter |
EP3001578B1 (en) * | 2006-08-07 | 2017-03-29 | InterDigital Technology Corporation | Method, apparatus and system for implementing multi-user virtual multiple-input multiple-output |
KR20080026010A (en) | 2006-09-19 | 2008-03-24 | 엘지전자 주식회사 | Data transmitting method using phase-shift based precoding and tranceiver implementing the same |
KR20080026019A (en) | 2006-09-19 | 2008-03-24 | 엘지전자 주식회사 | Phase shift based precoding method and tranceiver supporting the same |
US8073486B2 (en) | 2006-09-27 | 2011-12-06 | Apple Inc. | Methods for opportunistic multi-user beamforming in collaborative MIMO-SDMA |
US8374650B2 (en) * | 2006-09-27 | 2013-02-12 | Apple, Inc. | Methods for optimal collaborative MIMO-SDMA |
US8626104B2 (en) | 2006-09-28 | 2014-01-07 | Apple Inc. | Generalized codebook design method for limited feedback systems |
US7702029B2 (en) | 2006-10-02 | 2010-04-20 | Freescale Semiconductor, Inc. | MIMO precoding enabling spatial multiplexing, power allocation and adaptive modulation and coding |
US8885744B2 (en) | 2006-11-10 | 2014-11-11 | Qualcomm Incorporated | Providing antenna diversity in a wireless communication system |
US8073069B2 (en) | 2007-01-05 | 2011-12-06 | Apple Inc. | Multi-user MIMO-SDMA for finite rate feedback systems |
KR20080076683A (en) | 2007-02-14 | 2008-08-20 | 엘지전자 주식회사 | Phase shift based precoding method and tranceiver supporting the same |
US7961807B2 (en) * | 2007-03-16 | 2011-06-14 | Freescale Semiconductor, Inc. | Reference signaling scheme using compressed feedforward codebooks for multi-user, multiple input, multiple output (MU-MIMO) systems |
US8020075B2 (en) * | 2007-03-16 | 2011-09-13 | Apple Inc. | Channel quality index feedback reduction for broadband systems |
US7809074B2 (en) * | 2007-03-16 | 2010-10-05 | Freescale Semiconductor, Inc. | Generalized reference signaling scheme for multi-user, multiple input, multiple output (MU-MIMO) using arbitrarily precoded reference signals |
US8787499B2 (en) * | 2007-03-27 | 2014-07-22 | Qualcomm Incorporated | Channel estimation with effective co-channel interference suppression |
WO2008133582A2 (en) | 2007-04-30 | 2008-11-06 | Telefonaktiebolaget L M Ericsson (Publ) | Method and arrangement for adapting a multi-antenna transmission |
US8547986B2 (en) | 2007-04-30 | 2013-10-01 | Apple Inc. | System and method for resource block-specific control signaling |
GB2449935A (en) * | 2007-06-08 | 2008-12-10 | Fujitsu Ltd | Closed loop MIMO communication system using SISO r.m.s. delay spread to estimate eigen coherence bandwidth. |
US8238463B1 (en) | 2007-06-14 | 2012-08-07 | University Of South Florida | Reception and measurement of MIMO-OFDM signals with a single receiver |
EP2017973A1 (en) * | 2007-07-20 | 2009-01-21 | Lucent Technologies Inc. | Method and apparatuses for selecting a subchannels subset in wireless communications network using relays |
US8005131B2 (en) * | 2007-09-21 | 2011-08-23 | Intel Corporation | Delay compensation for transmit/receive chain calibration and multiuser MIMO |
EP3145096B1 (en) * | 2007-10-31 | 2018-08-01 | Telefonaktiebolaget LM Ericsson (PUBL) | Selection of transmit mode during a random access procedure |
KR101455992B1 (en) * | 2007-11-14 | 2014-11-03 | 엘지전자 주식회사 | Method for transmitting singnal in multiple antenna system |
EP2061160A1 (en) * | 2007-11-14 | 2009-05-20 | Sony Corporation | MIMO-Eigenbeamforming without feedback of channel state information |
CN101459495B (en) * | 2007-12-14 | 2011-06-01 | 华为技术有限公司 | Multi-user MIMO communication system, method and apparatus for transmitting signal |
CN102007081A (en) * | 2008-02-22 | 2011-04-06 | 材料及技术公司 | Single-sided high throughput wet etching and wet processing apparatus and method |
US7978623B1 (en) | 2008-03-22 | 2011-07-12 | Freescale Semiconductor, Inc. | Channel rank updates in multiple-input multiple-output communication systems |
EP2107698A1 (en) * | 2008-03-31 | 2009-10-07 | British Telecommunications Public Limited Company | Selecting either open or closed loop MIMO according to which has the greatest estimated channel capacity |
KR101289944B1 (en) | 2008-12-12 | 2013-07-26 | 엘지전자 주식회사 | Method for channel estimation in very high throughput wireless local area network system and apparatus for the same |
EP2498462A1 (en) * | 2009-11-04 | 2012-09-12 | Alcatel Lucent | Method and apparatus for antenna calibration in tdd wireless communication system based on coordinated multi-point (comp) |
US20110150049A1 (en) * | 2009-12-23 | 2011-06-23 | Dent Paul W | Mimo channel loopback |
TWI562554B (en) | 2009-12-30 | 2016-12-11 | Sony Corp | Communications system and device using beamforming |
US8363612B2 (en) * | 2010-03-11 | 2013-01-29 | Alcatel Lucent | Concurrent transmission of multiple signals in a wireless network |
US9509391B2 (en) * | 2010-09-08 | 2016-11-29 | Qualcomm Incorporated | Sounding feedback schemes for very high throughput wireless systems |
JP4730677B1 (en) | 2011-01-27 | 2011-07-20 | 日本電気株式会社 | Information processing apparatus, information processing method, and information processing program |
US9417687B2 (en) | 2011-07-12 | 2016-08-16 | Rambus Inc. | Dynamically changing data access bandwidth by selectively enabling and disabling data links |
US9154969B1 (en) | 2011-09-29 | 2015-10-06 | Marvell International Ltd. | Wireless device calibration for implicit transmit |
US9088448B2 (en) * | 2011-11-11 | 2015-07-21 | Mediatek Singapore Pte. Ltd. | Phased array device and calibration method therefor |
JP2015070336A (en) * | 2013-09-26 | 2015-04-13 | 株式会社Nttドコモ | Radio communication device, channel estimation method and signal relay method |
US10555203B2 (en) * | 2017-03-22 | 2020-02-04 | Qualcomm Incorporated | Channel reservation techniques for millimeter wave systems |
CN107104742B (en) * | 2017-04-02 | 2020-11-10 | 上海无线通信研究中心 | Calibration method and system for parallel multi-channel wireless channel measurement |
US9991972B1 (en) * | 2017-04-26 | 2018-06-05 | Cisco Technology, Inc. | Remote radio head calibration |
US20230379960A1 (en) * | 2022-05-20 | 2023-11-23 | XCOM Labs, Inc. | Scheduling wireless communications based on aging metric |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1087545A1 (en) * | 1999-09-24 | 2001-03-28 | National University Of Singapore | Downlink beamforming method |
WO2001076110A2 (en) * | 2000-03-30 | 2001-10-11 | Qualcomm Incorporated | Method and apparatus for measuring channel state information |
US6452981B1 (en) * | 1996-08-29 | 2002-09-17 | Cisco Systems, Inc | Spatio-temporal processing for interference handling |
WO2002078211A2 (en) * | 2001-03-23 | 2002-10-03 | Qualcomm Incorporated | Method and apparatus for utilizing channel state information in a wireless communication system |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0087545A1 (en) | 1982-02-25 | 1983-09-07 | Ernst Isler | Folded container consisting of an outer container and a liner |
US6178196B1 (en) | 1997-10-06 | 2001-01-23 | At&T Corp. | Combined interference cancellation and maximum likelihood decoding of space-time block codes |
US6615024B1 (en) * | 1998-05-01 | 2003-09-02 | Arraycomm, Inc. | Method and apparatus for determining signatures for calibrating a communication station having an antenna array |
US6594798B1 (en) | 1999-05-21 | 2003-07-15 | Microsoft Corporation | Receiver-driven layered error correction multicast over heterogeneous packet networks |
US6532562B1 (en) | 1999-05-21 | 2003-03-11 | Microsoft Corp | Receiver-driven layered error correction multicast over heterogeneous packet networks |
US6888809B1 (en) * | 2000-01-13 | 2005-05-03 | Lucent Technologies Inc. | Space-time processing for multiple-input, multiple-output, wireless systems |
US20020154705A1 (en) * | 2000-03-22 | 2002-10-24 | Walton Jay R. | High efficiency high performance communications system employing multi-carrier modulation |
US7113499B2 (en) * | 2000-03-29 | 2006-09-26 | Texas Instruments Incorporated | Wireless communication |
US7289570B2 (en) * | 2000-04-10 | 2007-10-30 | Texas Instruments Incorporated | Wireless communications |
US7139324B1 (en) * | 2000-06-02 | 2006-11-21 | Nokia Networks Oy | Closed loop feedback system for improved down link performance |
US7248841B2 (en) * | 2000-06-13 | 2007-07-24 | Agee Brian G | Method and apparatus for optimization of wireless multipoint electromagnetic communication networks |
US6751206B1 (en) * | 2000-06-29 | 2004-06-15 | Qualcomm Incorporated | Method and apparatus for beam switching in a wireless communication system |
JP3559231B2 (en) * | 2000-08-18 | 2004-08-25 | 日本電信電話株式会社 | Multiple beam control adaptive antenna device and communication method using the same |
US6985434B2 (en) * | 2000-09-01 | 2006-01-10 | Nortel Networks Limited | Adaptive time diversity and spatial diversity for OFDM |
US7062294B1 (en) * | 2000-09-29 | 2006-06-13 | Arraycomm, Llc. | Downlink transmission in a wireless data communication system having a base station with a smart antenna system |
US7248638B1 (en) * | 2001-03-23 | 2007-07-24 | Lsi Logic | Transmit antenna multi-mode tracking |
US8290098B2 (en) * | 2001-03-30 | 2012-10-16 | Texas Instruments Incorporated | Closed loop multiple transmit, multiple receive antenna wireless communication system |
US6859503B2 (en) * | 2001-04-07 | 2005-02-22 | Motorola, Inc. | Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel |
US6738020B1 (en) * | 2001-07-31 | 2004-05-18 | Arraycomm, Inc. | Estimation of downlink transmission parameters in a radio communications system with an adaptive antenna array |
FR2829326A1 (en) * | 2001-09-06 | 2003-03-07 | France Telecom | SUB-OPTIMAL ITERATIVE RECEPTION PROCESS AND SYSTEM FOR CDMA HIGH SPEED TRANSMISSION SYSTEM |
US7149254B2 (en) * | 2001-09-06 | 2006-12-12 | Intel Corporation | Transmit signal preprocessing based on transmit antennae correlations for multiple antennae systems |
US20030125040A1 (en) | 2001-11-06 | 2003-07-03 | Walton Jay R. | Multiple-access multiple-input multiple-output (MIMO) communication system |
US6873651B2 (en) * | 2002-03-01 | 2005-03-29 | Cognio, Inc. | System and method for joint maximal ratio combining using time-domain signal processing |
US6940917B2 (en) * | 2002-08-27 | 2005-09-06 | Qualcomm, Incorporated | Beam-steering and beam-forming for wideband MIMO/MISO systems |
US8320301B2 (en) * | 2002-10-25 | 2012-11-27 | Qualcomm Incorporated | MIMO WLAN system |
US7151809B2 (en) * | 2002-10-25 | 2006-12-19 | Qualcomm, Incorporated | Channel estimation and spatial processing for TDD MIMO systems |
US7986742B2 (en) * | 2002-10-25 | 2011-07-26 | Qualcomm Incorporated | Pilots for MIMO communication system |
US7280625B2 (en) * | 2002-12-11 | 2007-10-09 | Qualcomm Incorporated | Derivation of eigenvectors for spatial processing in MIMO communication systems |
US7298805B2 (en) * | 2003-11-21 | 2007-11-20 | Qualcomm Incorporated | Multi-antenna transmission for spatial division multiple access |
JP4425925B2 (en) * | 2003-12-27 | 2010-03-03 | 韓國電子通信研究院 | MIMO-OFDM system using eigenbeamforming technique |
US7110463B2 (en) * | 2004-06-30 | 2006-09-19 | Qualcomm, Incorporated | Efficient computation of spatial filter matrices for steering transmit diversity in a MIMO communication system |
-
2003
- 2003-10-23 US US10/693,171 patent/US7151809B2/en not_active Expired - Lifetime
- 2003-10-24 WO PCT/US2003/034567 patent/WO2004038952A2/en active Application Filing
- 2003-10-24 UA UAA200504942A patent/UA85830C2/en unknown
- 2003-10-24 TW TW092129796A patent/TWI358914B/en not_active IP Right Cessation
- 2003-10-24 AU AU2003287328A patent/AU2003287328C1/en not_active Ceased
- 2003-10-24 KR KR1020057007178A patent/KR101060412B1/en active IP Right Grant
- 2003-10-24 CA CA2753327A patent/CA2753327C/en not_active Expired - Lifetime
- 2003-10-24 BR BR0315558-7A patent/BR0315558A/en not_active IP Right Cessation
- 2003-10-24 EP EP03781560A patent/EP1559209B1/en not_active Expired - Lifetime
- 2003-10-24 CA CA2753403A patent/CA2753403C/en not_active Expired - Lifetime
- 2003-10-24 BR BRPI0315558-7A patent/BRPI0315558B1/en unknown
- 2003-10-24 CA CA2502804A patent/CA2502804C/en not_active Expired - Lifetime
- 2003-10-24 MX MXPA05004318A patent/MXPA05004318A/en active IP Right Grant
- 2003-10-24 ES ES03781560T patent/ES2407839T3/en not_active Expired - Lifetime
- 2003-10-24 JP JP2004547250A patent/JP4860925B2/en not_active Expired - Lifetime
-
2005
- 2005-04-12 IL IL167979A patent/IL167979A0/en unknown
-
2006
- 2006-12-13 US US11/610,351 patent/US7653142B2/en active Active
-
2009
- 2009-07-30 AU AU2009203088A patent/AU2009203088A1/en not_active Abandoned
-
2011
- 2011-08-16 JP JP2011177885A patent/JP2012016037A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6452981B1 (en) * | 1996-08-29 | 2002-09-17 | Cisco Systems, Inc | Spatio-temporal processing for interference handling |
EP1087545A1 (en) * | 1999-09-24 | 2001-03-28 | National University Of Singapore | Downlink beamforming method |
WO2001076110A2 (en) * | 2000-03-30 | 2001-10-11 | Qualcomm Incorporated | Method and apparatus for measuring channel state information |
WO2002078211A2 (en) * | 2001-03-23 | 2002-10-03 | Qualcomm Incorporated | Method and apparatus for utilizing channel state information in a wireless communication system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9013974B2 (en) | 2002-10-25 | 2015-04-21 | Qualcomm Incorporated | MIMO WLAN system |
US8670500B2 (en) | 2007-09-19 | 2014-03-11 | Lg Electronics Inc. | Data transmitting and receiving method using phase shift based precoding and transceiver supporting the same |
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CA2502804A1 (en) | 2004-05-06 |
JP4860925B2 (en) | 2012-01-25 |
UA85830C2 (en) | 2009-03-10 |
AU2003287328A1 (en) | 2004-05-13 |
CA2753327C (en) | 2015-08-18 |
MXPA05004318A (en) | 2005-08-26 |
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BR0315558A (en) | 2006-01-17 |
EP1559209A2 (en) | 2005-08-03 |
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