SG96568A1 - Beam synthesis method for downlink beamforming in fdd wireless communication system. - Google Patents

Beam synthesis method for downlink beamforming in fdd wireless communication system.

Info

Publication number
SG96568A1
SG96568A1 SG200005413A SG200005413A SG96568A1 SG 96568 A1 SG96568 A1 SG 96568A1 SG 200005413 A SG200005413 A SG 200005413A SG 200005413 A SG200005413 A SG 200005413A SG 96568 A1 SG96568 A1 SG 96568A1
Authority
SG
Singapore
Prior art keywords
wireless communication
communication system
synthesis method
beam synthesis
downlink beamforming
Prior art date
Application number
SG200005413A
Other languages
English (en)
Inventor
Ying-Chang Liang
Francois P S Chin
Original Assignee
Univ Singapore
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Univ Singapore filed Critical Univ Singapore
Priority to SG200005413A priority Critical patent/SG96568A1/en
Priority to EP01117570A priority patent/EP1191706A3/de
Priority to US09/922,442 priority patent/US7359733B2/en
Priority to JP2001287614A priority patent/JP2002164842A/ja
Priority to HK02103005.5A priority patent/HK1041987A1/en
Publication of SG96568A1 publication Critical patent/SG96568A1/en

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
    • 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
    • H04B7/08—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
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
SG200005413A 2000-09-21 2000-09-21 Beam synthesis method for downlink beamforming in fdd wireless communication system. SG96568A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SG200005413A SG96568A1 (en) 2000-09-21 2000-09-21 Beam synthesis method for downlink beamforming in fdd wireless communication system.
EP01117570A EP1191706A3 (de) 2000-09-21 2001-07-20 Verfahren zur Abwärtsrichtungsstrahlformung in FDD drahtlosen Kommunikationssystemen
US09/922,442 US7359733B2 (en) 2000-09-21 2001-08-03 Beam synthesis method for downlink beamforming in FDD wireless communication system
JP2001287614A JP2002164842A (ja) 2000-09-21 2001-09-20 Ｆｄｄ無線通信システムにおける下り回線のビーム形成のためのビーム合成方法
HK02103005.5A HK1041987A1 (en) 2000-09-21 2002-04-22 Method of transmitting line electric wave under the composition of FDD wireless transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SG200005413A SG96568A1 (en) 2000-09-21 2000-09-21 Beam synthesis method for downlink beamforming in fdd wireless communication system.

Publications (1)

Publication Number Publication Date
SG96568A1 true SG96568A1 (en) 2003-06-16

Family

ID=20430664

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200005413A SG96568A1 (en) 2000-09-21 2000-09-21 Beam synthesis method for downlink beamforming in fdd wireless communication system.

Country Status (5)

Country Link
US (1) US7359733B2 (de)
EP (1) EP1191706A3 (de)
JP (1) JP2002164842A (de)
HK (1) HK1041987A1 (de)
SG (1) SG96568A1 (de)

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KR20050106658A (ko) * 2004-05-06 2005-11-11 한국전자통신연구원 Ｏｆｄｍ／ｔｄｄ 방식의 하향링크용 고유빔을 형성하기위한 스마트 안테나 시스템 및 그 방법
WO2006026890A1 (en) * 2004-09-06 2006-03-16 Huawei Technologies Co., Ltd. Method for calculating a downlink beamforming weight vector in a wireless communication system
US8363577B2 (en) * 2005-05-13 2013-01-29 Qualcomm Incorporated Low complexity beamforming for multiple antenna systems
CN101204016B (zh) * 2005-05-23 2013-02-13 思科技术公司 用于干扰减少的方法和系统
US7817967B2 (en) 2005-06-21 2010-10-19 Atc Technologies, Llc Communications systems including adaptive antenna systems and methods for inter-system and intra-system interference reduction
US7680457B2 (en) * 2005-10-18 2010-03-16 Cisco Technology, Inc. Method and system for collaborated beamforming for reducing interference
US7526321B2 (en) * 2005-12-08 2009-04-28 Accton Technology Corporation Wireless network apparatus and method of channel allocation for respective radios
US8634869B2 (en) * 2006-09-15 2014-01-21 Qualcomm Incorporated Methods and apparatus related to multi-mode wireless communications device supporting both wide area network signaling and peer to peer signaling
US8929281B2 (en) * 2006-09-15 2015-01-06 Qualcomm Incorporated Methods and apparatus related to peer to peer device
US8369800B2 (en) * 2006-09-15 2013-02-05 Qualcomm Incorporated Methods and apparatus related to power control and/or interference management in a mixed wireless communications system
US7778211B2 (en) * 2006-09-26 2010-08-17 Cisco Technology, Inc. Method for computing a downlink beamforming weighting vector based on up link channel information
US8009639B2 (en) 2006-12-27 2011-08-30 Wireless Technology Solutions Llc Feedback control in an FDD TDD-CDMA system
US8135400B2 (en) 2007-01-19 2012-03-13 Samsung Electronics Co., Ltd. Method and system for device discovery in wireless communication
US8699421B2 (en) * 2007-01-19 2014-04-15 Samsung Electronics Co., Ltd. Method and system for wireless communication using channel selection and bandwidth reservation
US8179805B2 (en) * 2007-01-19 2012-05-15 Samsung Electronics Co., Ltd. Method and system for wireless communication by spatial reuse
US8503968B2 (en) * 2007-01-19 2013-08-06 Samsung Electronics Co., Ltd. Method and system for power saving in wireless communications
US8509159B2 (en) * 2007-01-19 2013-08-13 Samsung Electronics Co., Ltd. Method and system for wireless communication using out-of-band channels
US8542762B2 (en) 2007-11-05 2013-09-24 Cisco Technology, Inc. Bi-directional beamforming multiple-input multiple-output wireless communication
US8134503B2 (en) * 2008-06-30 2012-03-13 Cisco Technology, Inc. Open-loop beamforming MIMO communications in frequency division duplex systems
US7944891B2 (en) * 2008-07-08 2011-05-17 Motorola Mobility, Inc. Frequency transformation based transmit beamforming in a communication system
WO2010024539A2 (en) * 2008-08-26 2010-03-04 Electronics And Telecommunications Research Institute Method and transmitter for iteratively modifying beamforming vector
KR101231912B1 (ko) 2008-08-26 2013-02-08 삼성전자주식회사 빔 포밍 벡터의 반복적 갱신 방법 및 이를 지원하는 송신기
US8406720B2 (en) * 2009-08-19 2013-03-26 Cisco Technology, Inc. Beamforming weight generation using adaptive trigonometric waveform interpolation techniques
US8447237B2 (en) 2010-04-12 2013-05-21 Telefonaktiebolaget L M Ericsson (Publ) Interference avoidance in white space communication systems
US9300501B2 (en) * 2013-04-12 2016-03-29 Broadcom Corporation Spatial null creation using massive MIMO (M-MIMO)
US9825678B2 (en) 2013-11-26 2017-11-21 Marvell World Trade Ltd. Uplink multi-user multiple input multiple output for wireless local area network
WO2015081269A1 (en) 2013-11-27 2015-06-04 Marvell Semiconductor, Inc. Sounding and tone block allocation for orthogonal frequency division multiple access (ofdma) in wireless local area networks
WO2015081187A1 (en) 2013-11-27 2015-06-04 Marvell Semiconductor, Inc. Uplink multi-user multiple input multiple output beamforming
US10277295B2 (en) 2014-01-29 2019-04-30 The Boeing Company Simultaneous nulling and beamfocusing from disparate antennas
JP6430535B2 (ja) 2014-05-02 2018-11-28 マーベル ワールド トレード リミテッド 方法、機器、および第１通信デバイス
US10396873B2 (en) 2014-09-24 2019-08-27 Mediatek Inc. Control signaling in a beamforming system
US9882620B2 (en) 2014-09-24 2018-01-30 Mediatek Inc. Synchronization in a beamforming system
CN105099534A (zh) * 2015-08-22 2015-11-25 西安电子科技大学 基于定位信息辅助的大规模多输入多输出波束赋形方法
EP3643127B1 (de) * 2017-06-22 2021-08-25 Koninklijke KPN N.V. Planung des empfangs eines drahtlosen signals mittels empfangsstrahlformung
US10756831B2 (en) 2017-07-31 2020-08-25 Massachusetts Institute Of Technology Characterizing transmit channels from an antenna array to a transceiver
CN109391949B (zh) * 2017-08-11 2021-11-02 大唐移动通信设备有限公司 Pucch传输方法、用户设备和装置
US12096242B2 (en) * 2022-01-19 2024-09-17 Lg Electronics Inc. Method and apparatus for reducing interference effects in wireless communication systems

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US5694416A (en) * 1995-02-24 1997-12-02 Radix Technologies, Inc. Direct sequence spread spectrum receiver and antenna array for the simultaneous formation of a beam on a signal source and a null on an interfering jammer
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US5966094A (en) * 1996-12-20 1999-10-12 Northern Telecom Limited Base station antenna arrangement
US6166689A (en) * 1970-08-12 2000-12-26 Lockheed Martin Corporation Adaptive beamformer with beam mainlobe maintenance
EP1087545A1 (de) * 1999-09-24 2001-03-28 National University Of Singapore Verfahren zur Abwärtsrichtstrahlbildung

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US6166689A (en) * 1970-08-12 2000-12-26 Lockheed Martin Corporation Adaptive beamformer with beam mainlobe maintenance
US5694416A (en) * 1995-02-24 1997-12-02 Radix Technologies, Inc. Direct sequence spread spectrum receiver and antenna array for the simultaneous formation of a beam on a signal source and a null on an interfering jammer
US5661489A (en) * 1996-04-26 1997-08-26 Questech, Inc. Enhanced electronically steerable beam-forming system
US5966094A (en) * 1996-12-20 1999-10-12 Northern Telecom Limited Base station antenna arrangement
WO1999023718A1 (en) * 1997-11-03 1999-05-14 Motorola Inc. Antenna beam patterns having wide nulls
EP1087545A1 (de) * 1999-09-24 2001-03-28 National University Of Singapore Verfahren zur Abwärtsrichtstrahlbildung

Also Published As

Publication number Publication date
EP1191706A2 (de) 2002-03-27
HK1041987A1 (en) 2002-07-26
US7359733B2 (en) 2008-04-15
US20020061768A1 (en) 2002-05-23
EP1191706A3 (de) 2004-05-12
JP2002164842A (ja) 2002-06-07

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