DE60138701D1 - Verbessertes verfahren zur schätzung der gewichtungsfaktoren adaptiver arrays in einem drahtlosen kommunikationssystem - Google Patents
Verbessertes verfahren zur schätzung der gewichtungsfaktoren adaptiver arrays in einem drahtlosen kommunikationssystemInfo
- Publication number
- DE60138701D1 DE60138701D1 DE60138701T DE60138701T DE60138701D1 DE 60138701 D1 DE60138701 D1 DE 60138701D1 DE 60138701 T DE60138701 T DE 60138701T DE 60138701 T DE60138701 T DE 60138701T DE 60138701 D1 DE60138701 D1 DE 60138701D1
- Authority
- DE
- Germany
- Prior art keywords
- estimating
- wireless communication
- communication system
- improved method
- weighting factors
- Prior art date
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
-
- 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
- H04B7/0634—Antenna weights or vector/matrix coefficients
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
-
- 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
-
- 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
- H04B7/0652—Feedback error handling
- H04B7/0656—Feedback error handling at the transmitter, e.g. error detection at base station
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/584,626 US6434366B1 (en) | 2000-05-31 | 2000-05-31 | Method and system for estimating adaptive array weights used to transmit a signal to a receiver in a wireless communication system |
PCT/US2001/017388 WO2001093456A1 (en) | 2000-05-31 | 2001-05-30 | An improved method for estimating adaptive array weights in a wireless communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
DE60138701D1 true DE60138701D1 (de) | 2009-06-25 |
Family
ID=24338153
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60138701T Expired - Lifetime DE60138701D1 (de) | 2000-05-31 | 2001-05-30 | Verbessertes verfahren zur schätzung der gewichtungsfaktoren adaptiver arrays in einem drahtlosen kommunikationssystem |
Country Status (6)
Country | Link |
---|---|
US (1) | US6434366B1 (de) |
EP (1) | EP1290814B1 (de) |
KR (1) | KR100452790B1 (de) |
AU (1) | AU2001265152A1 (de) |
DE (1) | DE60138701D1 (de) |
WO (1) | WO2001093456A1 (de) |
Families Citing this family (55)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6115406A (en) * | 1999-09-10 | 2000-09-05 | Interdigital Technology Corporation | Transmission using an antenna array in a CDMA communication system |
US6278726B1 (en) * | 1999-09-10 | 2001-08-21 | Interdigital Technology Corporation | Interference cancellation in a spread spectrum communication system |
JP3317286B2 (ja) * | 1999-09-21 | 2002-08-26 | 日本電気株式会社 | 復調方法及び復調回路 |
JP2001111464A (ja) * | 1999-10-08 | 2001-04-20 | Matsushita Electric Ind Co Ltd | 基地局装置及び無線送信方法 |
US6466165B2 (en) * | 2000-06-16 | 2002-10-15 | Kabushiki Kaisha Toshiba | Adaptive array antenna |
US7433416B1 (en) * | 2000-08-02 | 2008-10-07 | Via Telecom Co., Ltd. | Method and apparatus for generating transmit adaptive antenna weights with nulling using binary gradient feedback |
US7180956B1 (en) * | 2000-08-02 | 2007-02-20 | Via Telecom Co., Ltd. | Method and apparatus for applying overlaid perturbation vectors for gradient feedback transmit antenna array adaptation |
US7236538B1 (en) * | 2000-08-02 | 2007-06-26 | Via Telecom Co., Ltd. | Method and apparatus for improving transmit antenna weight tracking using channel correlations in a wireless communication system |
US6952455B1 (en) * | 2000-08-02 | 2005-10-04 | Via Telecom, Co., Ltd. | Adaptive antenna method and apparatus |
US6711208B2 (en) * | 2000-12-04 | 2004-03-23 | Qualcomm, Incorporated | Estimation of traffic-to-pilot ratios |
US20020128026A1 (en) * | 2001-01-15 | 2002-09-12 | Derryberry Roy Thomas | System and method for channel prediction for closed loop diversity |
US6826241B2 (en) * | 2001-02-21 | 2004-11-30 | Motorola, Inc. | Apparatus and method for filtering maximum-length-code signals in a spread spectrum communication system |
FR2821502A1 (fr) * | 2001-02-27 | 2002-08-30 | Thomson Csf | Procede et dispositif d'estimation d'un canal de propagation a partir de ses statistiques |
US7224758B1 (en) * | 2001-03-23 | 2007-05-29 | Via Telecom Co., Ltd. | Multiple transmit antenna weighting techniques |
US8290098B2 (en) * | 2001-03-30 | 2012-10-16 | Texas Instruments Incorporated | Closed loop multiple transmit, multiple receive antenna wireless communication system |
US6996375B2 (en) * | 2001-07-26 | 2006-02-07 | Ericsson Inc. | Transmit diversity and separating multiple loopback signals |
US6996380B2 (en) * | 2001-07-26 | 2006-02-07 | Ericsson Inc. | Communication system employing transmit macro-diversity |
US7209511B2 (en) * | 2001-08-31 | 2007-04-24 | Ericsson Inc. | Interference cancellation in a CDMA receiving system |
US7224942B2 (en) | 2001-07-26 | 2007-05-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Communications system employing non-polluting pilot codes |
US7197282B2 (en) * | 2001-07-26 | 2007-03-27 | Ericsson Inc. | Mobile station loop-back signal processing |
JP2003124856A (ja) * | 2001-10-10 | 2003-04-25 | Hitachi Kokusai Electric Inc | アダプティブアレイアンテナ指向性制御システム |
US7155231B2 (en) * | 2002-02-08 | 2006-12-26 | Qualcomm, Incorporated | Transmit pre-correction in a wireless communication system |
US7986672B2 (en) * | 2002-02-25 | 2011-07-26 | Qualcomm Incorporated | Method and apparatus for channel quality feedback in a wireless communication |
CN1269330C (zh) * | 2002-03-22 | 2006-08-09 | 华为技术有限公司 | 一种自适应加权空时发射分集方法及其*** |
US7363057B2 (en) * | 2002-04-03 | 2008-04-22 | Nec Corporation | Mobile communication system, mobile station, base station, communication path quality estimation method used for the same |
US7342912B1 (en) * | 2002-06-28 | 2008-03-11 | Arraycomm, Llc. | Selection of user-specific transmission parameters for optimization of transmit performance in wireless communications using a common pilot channel |
US6873606B2 (en) * | 2002-10-16 | 2005-03-29 | Qualcomm, Incorporated | Rate adaptive transmission scheme for MIMO systems |
EP1568155A4 (de) * | 2002-10-29 | 2011-06-22 | Nokia Corp | Strahlformer mit niedriger komplexität für mehrere sende- und empfangsantennen |
US20040125865A1 (en) * | 2002-12-30 | 2004-07-01 | Frank Colin D. | Maximum signal-to-interference-and-noise spread spectrum rake receiver and method |
EP1447927A1 (de) * | 2003-02-17 | 2004-08-18 | France Telecom | Vorrichtung und Verfahren zur Signalverarbeitung |
JP3933597B2 (ja) * | 2003-03-27 | 2007-06-20 | 三洋電機株式会社 | 送信方法およびそれを利用した無線装置 |
EP1727292A4 (de) * | 2004-02-27 | 2010-04-21 | Nec Corp | Cdma-empfangsvorrichtung und -verfahren |
US7499452B2 (en) * | 2004-12-28 | 2009-03-03 | International Business Machines Corporation | Self-healing link sequence counts within a circular buffer |
US20060222020A1 (en) * | 2005-03-31 | 2006-10-05 | Adc Telecommunications, Inc. | Time start in the forward path |
US7593450B2 (en) * | 2005-03-31 | 2009-09-22 | Adc Telecommunications, Inc. | Dynamic frequency hopping |
US7398106B2 (en) * | 2005-03-31 | 2008-07-08 | Adc Telecommunications, Inc. | Dynamic readjustment of power |
US20060223514A1 (en) * | 2005-03-31 | 2006-10-05 | Adc Telecommunications, Inc. | Signal enhancement through diversity |
US20060227805A1 (en) * | 2005-03-31 | 2006-10-12 | Adc Telecommunications, Inc. | Buffers handling multiple protocols |
US7583735B2 (en) * | 2005-03-31 | 2009-09-01 | Adc Telecommunications, Inc. | Methods and systems for handling underflow and overflow in a software defined radio |
US7423988B2 (en) * | 2005-03-31 | 2008-09-09 | Adc Telecommunications, Inc. | Dynamic reconfiguration of resources through page headers |
US7640019B2 (en) * | 2005-03-31 | 2009-12-29 | Adc Telecommunications, Inc. | Dynamic reallocation of bandwidth and modulation protocols |
US7835702B1 (en) * | 2005-09-15 | 2010-11-16 | Magnolia Broadband Inc. | Calculating a diversity parameter adjustment according to previously applied diversity parameter adjustments |
US7570210B1 (en) | 2005-12-12 | 2009-08-04 | Marvell International Ltd. | Steering matrix feedback for beamforming |
US7764462B1 (en) | 2006-01-13 | 2010-07-27 | Marvell International Ltd. | Thermal solution for drive systems such as hard disk drives and digital versatile discs |
EP1811678A3 (de) | 2006-01-23 | 2012-08-01 | LG Electronics Inc. | Hochfrequenz-Sende-Empfangsgerät und Verfahren zum Senden und Empfang |
US8412271B2 (en) * | 2008-03-28 | 2013-04-02 | Marvell World Trade Ltd. | Boosted, dedicated reference signal |
WO2010042319A2 (en) | 2008-10-10 | 2010-04-15 | Ziva Corporation | Techniques and systems for wireless communications |
US8412203B2 (en) * | 2008-10-31 | 2013-04-02 | Avaya Inc. | Next generation cell phone |
US8498658B2 (en) * | 2009-09-03 | 2013-07-30 | Ziva Corporation | Techniques and systems for providing data over power in communications based on time reversal |
US8510433B2 (en) * | 2009-11-06 | 2013-08-13 | Nec Laboratories America, Inc. | Beam combination methods and systems for adapting communication links to varying channel conditions |
US8831164B2 (en) * | 2011-09-15 | 2014-09-09 | Exelis Inc | Method and apparatus for cooperative communications between groups of communication units using a time reversed channel response |
US8781424B2 (en) * | 2012-02-27 | 2014-07-15 | Intel Mobile Communications GmbH | Radio receiver apparatus of a cellular radio network |
US9059787B1 (en) * | 2013-06-12 | 2015-06-16 | Marvell International Ltd. | Estimating transmission power and noise level of received signal in a CDMA receiver |
US10211528B2 (en) * | 2015-05-18 | 2019-02-19 | William Marsh Rice University | Fully programmable digital-to-impulse radiating array |
WO2019069132A1 (en) * | 2017-10-02 | 2019-04-11 | Lenovo (Singapore) Pte, Ltd. | UPLINK POWER CONTROL |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3717814A (en) * | 1971-09-23 | 1973-02-20 | Bell Telephone Labor Inc | Cophasing diversity communication system with pilot feedback |
US5812542A (en) * | 1996-03-18 | 1998-09-22 | Motorola, Inc. | Method for determining weighting coefficients in a CDMA radio receiver |
EP1133074B1 (de) * | 1995-07-19 | 2009-04-22 | Nec Corporation | Diversity-Übertragungssystem mit Kodevielfachzugriff |
GB2313261B (en) * | 1996-05-17 | 2000-08-30 | Motorola Ltd | Devices for transmitter path weights and methods therefor |
JP3497672B2 (ja) * | 1996-09-18 | 2004-02-16 | 株式会社東芝 | アダプティブアンテナおよびマルチキャリア無線通信システム |
US5923700A (en) * | 1997-02-24 | 1999-07-13 | At & T Wireless | Adaptive weight update method and system for a discrete multitone spread spectrum communications system |
US5982327A (en) * | 1998-01-12 | 1999-11-09 | Motorola, Inc. | Adaptive array method, device, base station and subscriber unit |
US6067324A (en) * | 1998-06-30 | 2000-05-23 | Motorola, Inc. | Method and system for transmitting and demodulating a communications signal using an adaptive antenna array in a wireless communication system |
US6115406A (en) * | 1999-09-10 | 2000-09-05 | Interdigital Technology Corporation | Transmission using an antenna array in a CDMA communication system |
-
2000
- 2000-05-31 US US09/584,626 patent/US6434366B1/en not_active Expired - Lifetime
-
2001
- 2001-05-30 DE DE60138701T patent/DE60138701D1/de not_active Expired - Lifetime
- 2001-05-30 WO PCT/US2001/017388 patent/WO2001093456A1/en active IP Right Grant
- 2001-05-30 KR KR10-2002-7001390A patent/KR100452790B1/ko active IP Right Grant
- 2001-05-30 EP EP01939658A patent/EP1290814B1/de not_active Expired - Lifetime
- 2001-05-30 AU AU2001265152A patent/AU2001265152A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP1290814A4 (de) | 2006-05-10 |
US6434366B1 (en) | 2002-08-13 |
KR100452790B1 (ko) | 2004-10-14 |
EP1290814A1 (de) | 2003-03-12 |
WO2001093456A1 (en) | 2001-12-06 |
AU2001265152A1 (en) | 2001-12-11 |
KR20020016935A (ko) | 2002-03-06 |
EP1290814B1 (de) | 2009-05-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: MOTOROLA MOBILITY, INC. ( N.D. GES. D. STAATES, US |