AU2001278373A1 - Beam forming method using weighting factors that are periodically renewed - Google Patents
Beam forming method using weighting factors that are periodically renewedInfo
- Publication number
- AU2001278373A1 AU2001278373A1 AU2001278373A AU7837301A AU2001278373A1 AU 2001278373 A1 AU2001278373 A1 AU 2001278373A1 AU 2001278373 A AU2001278373 A AU 2001278373A AU 7837301 A AU7837301 A AU 7837301A AU 2001278373 A1 AU2001278373 A1 AU 2001278373A1
- Authority
- AU
- Australia
- Prior art keywords
- weighting
- forming method
- base station
- beam forming
- 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.)
- Abandoned
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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
-
- 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
- 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
- H04B7/065—Variable contents, e.g. long-term or short-short
-
- 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
- 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
Landscapes
- 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)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Forging (AREA)
- Electron Beam Exposure (AREA)
Abstract
A radio communications system has subscriber stations and a base station that is provided with an antenna system with a plurality of antenna elements that emit a downlink signal in a weighted manner with coefficients of a weighting vector. In order to form a beam, a plurality of weighting vectors is determined at the subscriber station and the determined weighting vectors are transmitted to the base station. In a subsequent working phase, the subscriber station selects a dominant vector among the determined weighting vectors and transmits an indicator of the selected weighting vector to the base station.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10032426 | 2000-07-04 | ||
DE10032426A DE10032426B4 (en) | 2000-07-04 | 2000-07-04 | Beamforming method |
DE10032426.6 | 2000-07-04 | ||
PCT/DE2001/002405 WO2002003565A2 (en) | 2000-07-04 | 2001-06-29 | Beam forming method using weighting factors that are periodically renewed |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2001278373A1 true AU2001278373A1 (en) | 2002-01-14 |
Family
ID=7647716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2001278373A Abandoned AU2001278373A1 (en) | 2000-07-04 | 2001-06-29 | Beam forming method using weighting factors that are periodically renewed |
Country Status (10)
Country | Link |
---|---|
US (1) | US7099630B2 (en) |
EP (1) | EP1297639B1 (en) |
JP (1) | JP4027224B2 (en) |
KR (1) | KR100559343B1 (en) |
CN (1) | CN1197270C (en) |
AT (1) | ATE287594T1 (en) |
AU (1) | AU2001278373A1 (en) |
DE (2) | DE10032426B4 (en) |
ES (1) | ES2232649T3 (en) |
WO (1) | WO2002003565A2 (en) |
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US9520972B2 (en) | 2005-03-17 | 2016-12-13 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
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US9184870B2 (en) | 2005-04-01 | 2015-11-10 | Qualcomm Incorporated | Systems and methods for control channel signaling |
US9408220B2 (en) | 2005-04-19 | 2016-08-02 | Qualcomm Incorporated | Channel quality reporting for adaptive sectorization |
US9036538B2 (en) | 2005-04-19 | 2015-05-19 | Qualcomm Incorporated | Frequency hopping design for single carrier FDMA systems |
US8565194B2 (en) | 2005-10-27 | 2013-10-22 | Qualcomm Incorporated | Puncturing signaling channel for a wireless communication system |
US8611284B2 (en) | 2005-05-31 | 2013-12-17 | Qualcomm Incorporated | Use of supplemental assignments to decrement resources |
US8879511B2 (en) | 2005-10-27 | 2014-11-04 | Qualcomm Incorporated | Assignment acknowledgement for a wireless communication system |
US8462859B2 (en) | 2005-06-01 | 2013-06-11 | Qualcomm Incorporated | Sphere decoding apparatus |
US9179319B2 (en) | 2005-06-16 | 2015-11-03 | Qualcomm Incorporated | Adaptive sectorization in cellular systems |
US20070071147A1 (en) * | 2005-06-16 | 2007-03-29 | Hemanth Sampath | Pseudo eigen-beamforming with dynamic beam selection |
US8599945B2 (en) | 2005-06-16 | 2013-12-03 | Qualcomm Incorporated | Robust rank prediction for a MIMO system |
US8885628B2 (en) | 2005-08-08 | 2014-11-11 | Qualcomm Incorporated | Code division multiplexing in a single-carrier frequency division multiple access system |
US9209956B2 (en) | 2005-08-22 | 2015-12-08 | Qualcomm Incorporated | Segment sensitive scheduling |
US20070041457A1 (en) | 2005-08-22 | 2007-02-22 | Tamer Kadous | Method and apparatus for providing antenna diversity in a wireless communication system |
US8644292B2 (en) | 2005-08-24 | 2014-02-04 | Qualcomm Incorporated | Varied transmission time intervals for wireless communication system |
US9136974B2 (en) | 2005-08-30 | 2015-09-15 | Qualcomm Incorporated | Precoding and SDMA support |
US8738053B2 (en) * | 2005-09-21 | 2014-05-27 | Broadcom Corporation | Method and system for finding a threshold for semi-orthogonal user group selection in multiuser MIMO downlink transmission |
US9225488B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Shared signaling channel |
US9225416B2 (en) | 2005-10-27 | 2015-12-29 | Qualcomm Incorporated | Varied signaling channels for a reverse link in a wireless communication system |
US8693405B2 (en) | 2005-10-27 | 2014-04-08 | Qualcomm Incorporated | SDMA resource management |
US9172453B2 (en) | 2005-10-27 | 2015-10-27 | Qualcomm Incorporated | Method and apparatus for pre-coding frequency division duplexing system |
US9088384B2 (en) | 2005-10-27 | 2015-07-21 | Qualcomm Incorporated | Pilot symbol transmission in wireless communication systems |
US8045512B2 (en) | 2005-10-27 | 2011-10-25 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US9210651B2 (en) | 2005-10-27 | 2015-12-08 | Qualcomm Incorporated | Method and apparatus for bootstraping information in a communication system |
US8582509B2 (en) | 2005-10-27 | 2013-11-12 | Qualcomm Incorporated | Scalable frequency band operation in wireless communication systems |
US9144060B2 (en) | 2005-10-27 | 2015-09-22 | Qualcomm Incorporated | Resource allocation for shared signaling channels |
US8477684B2 (en) | 2005-10-27 | 2013-07-02 | Qualcomm Incorporated | Acknowledgement of control messages in a wireless communication system |
US8582548B2 (en) | 2005-11-18 | 2013-11-12 | Qualcomm Incorporated | Frequency division multiple access schemes for wireless communication |
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KR101237384B1 (en) * | 2006-07-10 | 2013-02-26 | 인하대학교 산학협력단 | Apparatus and method for bemaforming in a wireless communication network |
US7978134B2 (en) * | 2007-08-13 | 2011-07-12 | Samsung Electronics Co., Ltd. | System and method for efficient transmit and receive beamforming protocol with heterogeneous antenna configuration |
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KR101408938B1 (en) * | 2008-04-02 | 2014-06-17 | 보드 오브 리전츠, 더 유니버시티 오브 텍사스 시스템 | Apparatus and method for beamforming based on generalized eigen analysis in a multiple input multiple output wireless communication system |
US8478204B2 (en) * | 2008-07-14 | 2013-07-02 | Samsung Electronics Co., Ltd. | System and method for antenna training of beamforming vectors having reuse of directional information |
US8380531B2 (en) * | 2008-07-25 | 2013-02-19 | Invivodata, Inc. | Clinical trial endpoint development process |
KR101888649B1 (en) * | 2011-11-17 | 2018-08-16 | 삼성전자주식회사 | Method for beamforming, apparatus and medical imaging system performing the same |
KR102185415B1 (en) * | 2013-01-11 | 2020-12-02 | 삼성전자주식회사 | Beam forming module, ultrasonic imaging apparatus using the same, method for beam forming using the beam forming module and method for controlling a ultrasonic imaging apparatus using the same |
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-
2000
- 2000-07-04 DE DE10032426A patent/DE10032426B4/en not_active Expired - Fee Related
-
2001
- 2001-06-29 ES ES01956300T patent/ES2232649T3/en not_active Expired - Lifetime
- 2001-06-29 US US10/312,769 patent/US7099630B2/en not_active Expired - Fee Related
- 2001-06-29 DE DE50105134T patent/DE50105134D1/en not_active Expired - Lifetime
- 2001-06-29 JP JP2002507531A patent/JP4027224B2/en not_active Expired - Fee Related
- 2001-06-29 KR KR1020027017017A patent/KR100559343B1/en not_active IP Right Cessation
- 2001-06-29 EP EP01956300A patent/EP1297639B1/en not_active Expired - Lifetime
- 2001-06-29 CN CNB018123899A patent/CN1197270C/en not_active Expired - Fee Related
- 2001-06-29 AT AT01956300T patent/ATE287594T1/en not_active IP Right Cessation
- 2001-06-29 AU AU2001278373A patent/AU2001278373A1/en not_active Abandoned
- 2001-06-29 WO PCT/DE2001/002405 patent/WO2002003565A2/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
CN1197270C (en) | 2005-04-13 |
KR100559343B1 (en) | 2006-03-15 |
US20030109226A1 (en) | 2003-06-12 |
ES2232649T3 (en) | 2005-06-01 |
CN1440597A (en) | 2003-09-03 |
ATE287594T1 (en) | 2005-02-15 |
EP1297639B1 (en) | 2005-01-19 |
EP1297639A2 (en) | 2003-04-02 |
JP2004511119A (en) | 2004-04-08 |
DE50105134D1 (en) | 2005-02-24 |
DE10032426A1 (en) | 2002-01-17 |
JP4027224B2 (en) | 2007-12-26 |
WO2002003565A2 (en) | 2002-01-10 |
DE10032426B4 (en) | 2006-01-12 |
WO2002003565A3 (en) | 2002-07-18 |
KR20030007965A (en) | 2003-01-23 |
US7099630B2 (en) | 2006-08-29 |
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