CA2239601A1 - Multi-beam antenna system for cellular radio base stations - Google Patents

Multi-beam antenna system for cellular radio base stations

Info

Publication number
CA2239601A1
CA2239601A1 CA002239601A CA2239601A CA2239601A1 CA 2239601 A1 CA2239601 A1 CA 2239601A1 CA 002239601 A CA002239601 A CA 002239601A CA 2239601 A CA2239601 A CA 2239601A CA 2239601 A1 CA2239601 A1 CA 2239601A1
Authority
CA
Canada
Prior art keywords
main
signal
uplink
diversity
beam signal
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.)
Granted
Application number
CA002239601A
Other languages
French (fr)
Other versions
CA2239601C (en
Inventor
Christopher Robert Ward
Martin Stevens Smith
Andrew William Jeffries
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Microsoft Technology Licensing LLC
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of CA2239601A1 publication Critical patent/CA2239601A1/en
Application granted granted Critical
Publication of CA2239601C publication Critical patent/CA2239601C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • 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
    • 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
    • H04B7/0491—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more sectors, i.e. sector diversity
    • 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
    • H04B7/0802—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 antenna selection
    • H04B7/0805—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 antenna selection with single receiver and antenna switching
    • 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
    • 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
    • H04B7/10—Polarisation diversity; Directional diversity
    • 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
    • H04B7/0802—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 antenna selection
    • H04B7/0825—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 antenna selection with main and with auxiliary or diversity 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/0874—Hybrid systems, i.e. switching and combining using subgroups of receive 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection

Abstract

A base transceiver station operating a sectorized cell of a cellular radio system operates a plurality of narrow uplink main receive beams, and one or a plurality of uplink diversity received beams. A scanning means scans each of theuplink main receive beams to locate a communications channel on the main uplink beams. A diversity receiver receives a diverse beam signal from the diverse beam(s), which is compared with a beam signal received from a main uplink beam, and the main beam signal from the main beam, or a diverse beam signal from the diversity antenna is selected, depending on the comparative signal to noise ratio and signal strength of the main beam signal and diversity beam signal.
CA002239601A 1997-06-05 1998-06-04 Multi-beam antenna system for cellular radio base stations Expired - Lifetime CA2239601C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/868,859 US6167286A (en) 1997-06-05 1997-06-05 Multi-beam antenna system for cellular radio base stations
US08/868,859 1997-06-05

Publications (2)

Publication Number Publication Date
CA2239601A1 true CA2239601A1 (en) 1998-12-05
CA2239601C CA2239601C (en) 2002-04-23

Family

ID=25352457

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002239601A Expired - Lifetime CA2239601C (en) 1997-06-05 1998-06-04 Multi-beam antenna system for cellular radio base stations

Country Status (4)

Country Link
US (1) US6167286A (en)
EP (2) EP1467437A1 (en)
CA (1) CA2239601C (en)
DE (1) DE69827074T2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107660328A (en) * 2011-07-19 2018-02-02 搜诺思公司 Its line options

Families Citing this family (163)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6900775B2 (en) * 1997-03-03 2005-05-31 Celletra Ltd. Active antenna array configuration and control for cellular communication systems
US6512934B2 (en) * 1997-06-02 2003-01-28 Ntt Mobile Communications Network, Inc. Adaptive array antenna
FI980035A (en) * 1998-01-09 1999-07-10 Nokia Networks Oy A method for directing an antenna beam and a transceiver
JP3798549B2 (en) * 1998-03-18 2006-07-19 富士通株式会社 Multi-beam antenna system for radio base station
GB9901789D0 (en) * 1998-04-22 1999-03-17 Koninkl Philips Electronics Nv Antenna diversity system
CA2237225A1 (en) * 1998-05-05 1999-11-05 John T. Sydor Highly structured rosette antenna array system for data communications
US6438389B1 (en) * 1998-07-24 2002-08-20 The Board Of Trustees Of The Leland Stanford Junior University Wireless communication system with adaptive beam selection
US6418316B2 (en) * 1998-08-06 2002-07-09 Harris Corporation Increasing channel capacity of wireless local loop via polarization diversity antenna distribution scheme
US7076227B1 (en) * 1998-12-03 2006-07-11 Apex/Eclipse Systems, Inc. Receiving system with improved directivity and signal to noise ratio
US6240290B1 (en) * 1999-03-04 2001-05-29 Harris Corporation Base station hand-off mechanism for cellular communication system
US6360107B1 (en) * 1999-04-08 2002-03-19 Lucent Technologies Inc. Apparatus, method and system for topological channel assignment for focused beam, fixed wireless telecommunications
SE517197C2 (en) * 1999-04-15 2002-05-07 Ericsson Telefon Ab L M Adaptive sector classification
US6597927B1 (en) * 1999-05-27 2003-07-22 Nortel Networks Limited Narrow beam traffic channel assignment method and apparatus
US6470192B1 (en) * 1999-08-16 2002-10-22 Telefonaktiebolaget Lm Ericcson (Publ) Method of an apparatus for beam reduction and combining in a radio communications system
US7106853B1 (en) 1999-09-20 2006-09-12 Apex/Eclipse Systems, Inc. Method and means for increasing inherent channel capacity for wired network
US6788661B1 (en) * 1999-11-12 2004-09-07 Nikia Networks Oy Adaptive beam-time coding method and apparatus
US6611695B1 (en) 1999-12-20 2003-08-26 Nortel Networks Limited Method and apparatus for assigning frequency channels to a beam in a multi-beam cellular communications system
US6754511B1 (en) * 2000-02-04 2004-06-22 Harris Corporation Linear signal separation using polarization diversity
JP3699883B2 (en) * 2000-06-29 2005-09-28 松下電器産業株式会社 Radio base station apparatus and radio communication method
JP2002058063A (en) * 2000-08-08 2002-02-22 Hitachi Ltd Cellular system and base station
US7921442B2 (en) * 2000-08-16 2011-04-05 The Boeing Company Method and apparatus for simultaneous live television and data services using single beam antennas
US6642908B2 (en) * 2000-08-16 2003-11-04 Raytheon Company Switched beam antenna architecture
US6697643B1 (en) * 2000-10-13 2004-02-24 Telefonaktiebolaget Lm Ericsson (Publ) System and method for implementing a multi-beam antenna without duplex filters within a base station
US6956838B2 (en) * 2000-10-27 2005-10-18 L-3 Communications Corporation Use of wide element spacing to improve the flexibility of a circular base station antenna array in a space division/multiple access synchronous CDMA communication system
US7194269B2 (en) * 2000-10-30 2007-03-20 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry Method and wireless communication hub for data communications
US6907271B2 (en) * 2000-11-10 2005-06-14 Nortel Networks Limited Multibeam wireless communications method and system including an interference avoidance scheme in which the area of each transmitted beam is divided into a plurality of sub-areas
US7103317B2 (en) * 2000-12-12 2006-09-05 The Directv Group, Inc. Communication system using multiple link terminals for aircraft
US6952580B2 (en) * 2000-12-12 2005-10-04 The Directv Group, Inc. Multiple link internet protocol mobile communications system and method therefor
US8396513B2 (en) * 2001-01-19 2013-03-12 The Directv Group, Inc. Communication system for mobile users using adaptive antenna
US7187949B2 (en) * 2001-01-19 2007-03-06 The Directv Group, Inc. Multiple basestation communication system having adaptive antennas
US7809403B2 (en) 2001-01-19 2010-10-05 The Directv Group, Inc. Stratospheric platforms communication system using adaptive antennas
US6917820B2 (en) * 2001-01-26 2005-07-12 Stanford University Method and apparatus for selection and use of optimal antennas in wireless systems
US7068616B2 (en) * 2001-02-05 2006-06-27 The Directv Group, Inc. Multiple dynamic connectivity for satellite communications systems
US7340279B2 (en) * 2001-03-23 2008-03-04 Qualcomm Incorporated Wireless communications with an adaptive antenna array
CA2444432C (en) * 2001-04-18 2011-02-08 Skypilot Network, Inc. Wireless mesh network and network node
CA2447777A1 (en) * 2001-05-31 2002-12-12 Magnolia Broadband, Inc. Communication device with smart antenna using a quality-indication signal
US8249187B2 (en) 2002-05-09 2012-08-21 Google Inc. System, method and apparatus for mobile transmit diversity using symmetric phase difference
US7499499B2 (en) * 2001-06-04 2009-03-03 Alcatel-Lucent Usa Inc. Method for multiple antenna transmission
US20030017853A1 (en) * 2001-07-12 2003-01-23 Sarnoff Corporation Method and apparatus for enhancing the data transmission capacity of a wireless communication system
US20050116876A1 (en) * 2001-08-14 2005-06-02 Calin Moldoveanu Distribution system for antenna array
US6975994B2 (en) * 2001-09-12 2005-12-13 Technology Innovations, Llc Device for providing speech driven control of a media presentation
RU2221334C2 (en) * 2001-11-01 2004-01-10 Общество с ограниченной ответственностью "Алгоритм" Method for radio communications in wireless local network and transceiver
TW595857U (en) * 2001-11-29 2004-06-21 Us 091219345
US6823180B2 (en) * 2001-12-12 2004-11-23 Motorola, Inc. Method and apparatus for adapting antenna visibility in a wireless communications unit
JP2003244054A (en) * 2002-02-21 2003-08-29 Ntt Docomo Inc Transmission control apparatus and method
US20030161410A1 (en) * 2002-02-26 2003-08-28 Martin Smith Radio communications device with adaptive combination
TW521454B (en) * 2002-03-26 2003-02-21 Far Eastone Telecomm Co Ltd The FBFN correction method for the beam pointing error of the LMDS system and device thereof
US6850741B2 (en) * 2002-04-04 2005-02-01 Agency For Science, Technology And Research Method for selecting switched orthogonal beams for downlink diversity transmission
US7065383B1 (en) * 2002-04-16 2006-06-20 Omri Hovers Method and apparatus for synchronizing a smart antenna apparatus with a base station transceiver
US7289826B1 (en) * 2002-04-16 2007-10-30 Faulkner Interstices, Llc Method and apparatus for beam selection in a smart antenna system
US7529525B1 (en) * 2002-04-16 2009-05-05 Faulkner Interstices Llc Method and apparatus for collecting information for use in a smart antenna system
US6674410B1 (en) * 2002-05-15 2004-01-06 The United States Of America As Represented By The Secretary Of The Air Force Six-port junction/directional coupler with 0/90/180/270 ° output phase relationships
US20030228857A1 (en) * 2002-06-06 2003-12-11 Hitachi, Ltd. Optimum scan for fixed-wireless smart antennas
US7181245B2 (en) * 2002-06-27 2007-02-20 Nortel Networks Limited Wireless transmitter, transceiver and method
US7043274B2 (en) * 2002-06-28 2006-05-09 Interdigital Technology Corporation System for efficiently providing coverage of a sectorized cell for common and dedicated channels utilizing beam forming and sweeping
US6785559B1 (en) * 2002-06-28 2004-08-31 Interdigital Technology Corporation System for efficiently covering a sectorized cell utilizing beam forming and sweeping
US7065352B2 (en) * 2002-09-13 2006-06-20 Cingular Wireless Ii, Llc System and method for improved spectrum use
US7242930B2 (en) * 2002-09-13 2007-07-10 Cingular Wireless Ii, Llc System and method for increasing transmission capability
US7200393B2 (en) * 2002-09-13 2007-04-03 Cingular Wireless Ii, Llc System for split transmission for enhanced spectrum utilization
US20040185782A1 (en) * 2003-03-17 2004-09-23 Halford Steven Dennis Technique for selecting a signal path in an antenna system
US7729726B2 (en) * 2004-03-26 2010-06-01 Nortel Networks Limited Feeder cable reduction
US7860497B2 (en) * 2004-03-31 2010-12-28 The Boeing Company Dynamic configuration management
JP4489505B2 (en) * 2004-05-12 2010-06-23 株式会社エヌ・ティ・ティ・ドコモ Weight determination device and weight determination method
WO2006033097A2 (en) * 2004-09-22 2006-03-30 Celletra Ltd. Omni-cell for cellular communications
US7747229B2 (en) * 2004-11-19 2010-06-29 Atc Technologies, Llc Electronic antenna beam steering using ancillary receivers and related methods
US7403153B2 (en) * 2004-12-15 2008-07-22 Valeo Raytheon Systems, Inc. System and method for reducing a radar interference signal
US7683827B2 (en) * 2004-12-15 2010-03-23 Valeo Radar Systems, Inc. System and method for reducing the effect of a radar interference signal
US7719993B2 (en) 2004-12-30 2010-05-18 Intel Corporation Downlink transmit beamforming
US7248215B2 (en) * 2004-12-30 2007-07-24 Valeo Raytheon Systems, Inc Beam architecture for improving angular resolution
US7680464B2 (en) * 2004-12-30 2010-03-16 Valeo Radar Systems, Inc. Waveguide—printed wiring board (PWB) interconnection
US7603097B2 (en) * 2004-12-30 2009-10-13 Valeo Radar Systems, Inc. Vehicle radar sensor assembly
US7415288B1 (en) * 2005-01-07 2008-08-19 Zte (Usa) Inc. Techniques for providing efficient transmit diversity and bandwidth segmentation in a wireless communication system
CA2504989C (en) * 2005-04-22 2013-03-12 Gotohti.Com Inc. Stepped pump foam dispenser
US20060252461A1 (en) * 2005-05-06 2006-11-09 Grant Neil G Controlling wireless communications from a multi-sector antenna of a base station
US20070058603A1 (en) * 2005-08-12 2007-03-15 Samsung Electronics Co., Ltd. Apparatus and method for estimating and reporting a carrier to interference noise ratio in a multi-antenna system
US7746946B2 (en) * 2005-10-10 2010-06-29 Magnolia Broadband Inc. Performing a scan of diversity parameter differences
US8041395B2 (en) * 2005-11-14 2011-10-18 Neocific, Inc. Multiple-antenna system for cellular communication and broadcasting
EP2118966A4 (en) * 2005-12-12 2014-06-04 Flextronics Ap Llc Wideband antenna system
DE102005061219A1 (en) * 2005-12-20 2007-06-21 Fachhochschule Aachen Radio transmission line arrangement, has multipliers, mixers, phase comparators, frequency comparators or power detectors that are provided for evaluating two different polarized modes
US7400290B2 (en) * 2005-12-30 2008-07-15 Valeo Raytheon Systems, Inc. Vehicle radar system having multiple operating modes
US7336219B1 (en) 2005-12-30 2008-02-26 Valeo Raytheon Systems, Inc. System and method for generating a radar detection threshold
US20070152869A1 (en) * 2005-12-30 2007-07-05 Woodington Walter G Multichannel processing of signals in a radar system
US7379018B1 (en) 2005-12-30 2008-05-27 Valeo Raytheon Systems, Inc. System and method for verifying a radar detection
US20070152872A1 (en) * 2005-12-30 2007-07-05 Woodington Walter G Reducing undesirable coupling of signal(s) between two or more signal paths in a radar system
US20100238066A1 (en) * 2005-12-30 2010-09-23 Valeo Raytheon Systems, Inc. Method and system for generating a target alert
US7345619B2 (en) * 2005-12-30 2008-03-18 Valeo Raytheon Systems, Inc. Generating event signals in a radar system
US20070156799A1 (en) * 2005-12-30 2007-07-05 Gilbert Michael J Multi-stage finite impulse response filter processing
CA2542445A1 (en) * 2006-04-07 2007-10-07 Tenxc Wireless Inc. Adaptive multi-beam system
US20080001809A1 (en) * 2006-06-30 2008-01-03 Walter Gordon Woodington Detecting signal interference in a vehicle system
US8045996B2 (en) * 2006-07-31 2011-10-25 Qualcomm Incorporated Determination of cell RF parameters based on measurements by user equipments
US20080089267A1 (en) * 2006-09-21 2008-04-17 Silvus Communications Systems, Inc. Multi-antenna upgrade for a transceiver
EP2109941B1 (en) * 2007-02-05 2013-10-30 BlackBerry Limited Apparatus, and associated method, for operating upon received data at a receiving station capable of diversity operation
US8548525B2 (en) * 2007-06-28 2013-10-01 Fimax Technology Limited Systems and methods using antenna beam scanning for improved communications
WO2009080101A1 (en) * 2007-12-20 2009-07-02 Telefonaktiebolaget Lm Ericsson (Publ) An improved antenna arrangement in an electronic device
US8274930B2 (en) * 2008-03-10 2012-09-25 Mitsubishi Electric Research Laboratories, Inc. Analog beamforming to reduce interference in WiMAX networks
US8483706B2 (en) * 2008-04-15 2013-07-09 Qualcomm Incorporated Location services based on positioned wireless measurement reports
EP2294874B1 (en) * 2008-07-02 2021-01-27 Ericsson WiFi Inc. Wireless mesh network
US8670778B2 (en) * 2008-09-29 2014-03-11 Qualcomm Incorporated Dynamic sectors in a wireless communication system
EP2226890A1 (en) * 2009-03-03 2010-09-08 Hitachi Cable, Ltd. Mobile communication base station antenna
US8219048B2 (en) * 2009-03-03 2012-07-10 Broadcom Corporation Method and system for receiving signals via multi-port distributed antenna
GB2471669B (en) * 2009-07-06 2012-04-04 Socowave Technologies Ltd Wireless network element and method for antenna array control
US8842774B2 (en) * 2011-06-01 2014-09-23 Telefonaktiebolaget L M Ericsson (Publ) Signal combiner, method, computer program and computer program product
KR101295643B1 (en) * 2011-11-02 2013-08-12 한국전자통신연구원 Apparatus and method for receiving of GPS signal
CN104040368B (en) * 2011-11-07 2017-08-22 大力系统有限公司 Virtualize the soft handover and route data in distributing antenna system
KR101880990B1 (en) 2011-11-16 2018-08-24 삼성전자주식회사 Method and apparatus for transmitting and receiving signals in multi-antenna system
KR101888852B1 (en) 2011-12-02 2018-09-21 삼성전자주식회사 Apparatus and method for providing diversity service antenna in portable terminal
US8767862B2 (en) 2012-05-29 2014-07-01 Magnolia Broadband Inc. Beamformer phase optimization for a multi-layer MIMO system augmented by radio distribution network
US8885757B2 (en) 2012-05-29 2014-11-11 Magnolia Broadband Inc. Calibration of MIMO systems with radio distribution networks
US8971452B2 (en) 2012-05-29 2015-03-03 Magnolia Broadband Inc. Using 3G/4G baseband signals for tuning beamformers in hybrid MIMO RDN systems
US8644413B2 (en) 2012-05-29 2014-02-04 Magnolia Broadband Inc. Implementing blind tuning in hybrid MIMO RF beamforming systems
US8649458B2 (en) 2012-05-29 2014-02-11 Magnolia Broadband Inc. Using antenna pooling to enhance a MIMO receiver augmented by RF beamforming
US9275690B2 (en) 2012-05-30 2016-03-01 Tahoe Rf Semiconductor, Inc. Power management in an electronic system through reducing energy usage of a battery and/or controlling an output power of an amplifier thereof
US9154204B2 (en) 2012-06-11 2015-10-06 Magnolia Broadband Inc. Implementing transmit RDN architectures in uplink MIMO systems
US9509351B2 (en) 2012-07-27 2016-11-29 Tahoe Rf Semiconductor, Inc. Simultaneous accommodation of a low power signal and an interfering signal in a radio frequency (RF) receiver
US8797969B1 (en) 2013-02-08 2014-08-05 Magnolia Broadband Inc. Implementing multi user multiple input multiple output (MU MIMO) base station using single-user (SU) MIMO co-located base stations
US9343808B2 (en) 2013-02-08 2016-05-17 Magnotod Llc Multi-beam MIMO time division duplex base station using subset of radios
US9155110B2 (en) 2013-03-27 2015-10-06 Magnolia Broadband Inc. System and method for co-located and co-channel Wi-Fi access points
US8989103B2 (en) 2013-02-13 2015-03-24 Magnolia Broadband Inc. Method and system for selective attenuation of preamble reception in co-located WI FI access points
US20140226740A1 (en) 2013-02-13 2014-08-14 Magnolia Broadband Inc. Multi-beam co-channel wi-fi access point
US9716315B2 (en) 2013-03-15 2017-07-25 Gigpeak, Inc. Automatic high-resolution adaptive beam-steering
US9531070B2 (en) 2013-03-15 2016-12-27 Christopher T. Schiller Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through accommodating differential coupling between VCOs thereof
US9184498B2 (en) 2013-03-15 2015-11-10 Gigoptix, Inc. Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through fine control of a tunable frequency of a tank circuit of a VCO thereof
US9780449B2 (en) 2013-03-15 2017-10-03 Integrated Device Technology, Inc. Phase shift based improved reference input frequency signal injection into a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation to reduce a phase-steering requirement during beamforming
US9837714B2 (en) 2013-03-15 2017-12-05 Integrated Device Technology, Inc. Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through a circular configuration thereof
US9666942B2 (en) 2013-03-15 2017-05-30 Gigpeak, Inc. Adaptive transmit array for beam-steering
US9722310B2 (en) 2013-03-15 2017-08-01 Gigpeak, Inc. Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through frequency multiplication
US9100968B2 (en) 2013-05-09 2015-08-04 Magnolia Broadband Inc. Method and system for digital cancellation scheme with multi-beam
US9425882B2 (en) 2013-06-28 2016-08-23 Magnolia Broadband Inc. Wi-Fi radio distribution network stations and method of operating Wi-Fi RDN stations
US8995416B2 (en) 2013-07-10 2015-03-31 Magnolia Broadband Inc. System and method for simultaneous co-channel access of neighboring access points
US9497781B2 (en) 2013-08-13 2016-11-15 Magnolia Broadband Inc. System and method for co-located and co-channel Wi-Fi access points
US9060362B2 (en) 2013-09-12 2015-06-16 Magnolia Broadband Inc. Method and system for accessing an occupied Wi-Fi channel by a client using a nulling scheme
US9088898B2 (en) 2013-09-12 2015-07-21 Magnolia Broadband Inc. System and method for cooperative scheduling for co-located access points
US9172454B2 (en) 2013-11-01 2015-10-27 Magnolia Broadband Inc. Method and system for calibrating a transceiver array
KR102205279B1 (en) 2013-11-06 2021-01-20 삼성전자주식회사 Apparatus and method for transmitting and receivig a sigal using multi beams in a wireless communication system
US8891598B1 (en) 2013-11-19 2014-11-18 Magnolia Broadband Inc. Transmitter and receiver calibration for obtaining the channel reciprocity for time division duplex MIMO systems
US8942134B1 (en) 2013-11-20 2015-01-27 Magnolia Broadband Inc. System and method for selective registration in a multi-beam system
US8929322B1 (en) 2013-11-20 2015-01-06 Magnolia Broadband Inc. System and method for side lobe suppression using controlled signal cancellation
US9014066B1 (en) 2013-11-26 2015-04-21 Magnolia Broadband Inc. System and method for transmit and receive antenna patterns calibration for time division duplex (TDD) systems
US9294177B2 (en) 2013-11-26 2016-03-22 Magnolia Broadband Inc. System and method for transmit and receive antenna patterns calibration for time division duplex (TDD) systems
US9042276B1 (en) 2013-12-05 2015-05-26 Magnolia Broadband Inc. Multiple co-located multi-user-MIMO access points
US9653796B2 (en) 2013-12-16 2017-05-16 Valeo Radar Systems, Inc. Structure and technique for antenna decoupling in a vehicle mounted sensor
US20170250927A1 (en) 2013-12-23 2017-08-31 Dali Systems Co. Ltd. Virtual radio access network using software-defined network of remotes and digital multiplexing switches
US20150237510A1 (en) * 2014-02-17 2015-08-20 Magnolia Broadband Inc. Micro-steering beams in multi-beam communications systems
US9100154B1 (en) 2014-03-19 2015-08-04 Magnolia Broadband Inc. Method and system for explicit AP-to-AP sounding in an 802.11 network
US9172446B2 (en) 2014-03-19 2015-10-27 Magnolia Broadband Inc. Method and system for supporting sparse explicit sounding by implicit data
US9271176B2 (en) 2014-03-28 2016-02-23 Magnolia Broadband Inc. System and method for backhaul based sounding feedback
US9929752B2 (en) * 2014-04-08 2018-03-27 Qorvo Us, Inc. RF receive diplexer
US9768838B2 (en) 2014-04-08 2017-09-19 Qorvo Us, Inc. Reconfigurable RF receive diplexer
CN106716868A (en) * 2015-03-20 2017-05-24 华为技术有限公司 Receiving device and signal receiving processing method
US10848216B2 (en) 2015-06-26 2020-11-24 Lg Electronics Inc. Method and apparatus for transmitting uplink beam scanning signal in wireless communication system
GB2540355B (en) * 2015-07-13 2019-01-09 Cambium Networks Ltd Method and apparatus for an access point in a point to multipoint wireless network
EP3357174B1 (en) * 2015-09-29 2021-07-14 Telefonaktiebolaget LM Ericsson (publ) Methods and devices for determining suitable transmit directions for beamformed transmission
US20170207530A1 (en) * 2016-01-14 2017-07-20 Taoglas Group Holdings Devices, systems and methods for aiming directional antennas
US10224997B2 (en) 2016-10-18 2019-03-05 Telefonaktiebolaget Lm Ericsson (Publ) Method and communication device for determining beam for use
US11032744B2 (en) 2017-05-04 2021-06-08 At&T Intellectual Property I, L.P. Inter-distributed unit beam switch procedure triggered by radio link interruption
US10644974B2 (en) 2017-05-04 2020-05-05 At&T Intellectual Property I, L.P. Measurements and radio link monitoring in a wireless communications system
US10440596B2 (en) * 2017-09-19 2019-10-08 Hughes Network Systems, Llc Measuring and monitoring beam performance in mobile satellite system
US10499398B2 (en) 2017-09-29 2019-12-03 At&T Intellectual Property I, L.P. Facilitating mobile device-assisted mobility enhancement to improve user plane interruption time
WO2020033004A2 (en) 2018-02-15 2020-02-13 Space Exploration Technologies Corp. Beamformer lattice for phased array antennas
US11056801B2 (en) * 2018-02-15 2021-07-06 Space Exploration Technologies Corp. Antenna aperture in phased array antenna systems
CN108494461B (en) * 2018-03-16 2020-06-16 Oppo广东移动通信有限公司 Wireless communication device
EP4078830A1 (en) * 2019-12-20 2022-10-26 Telefonaktiebolaget Lm Ericsson (Publ) Mrc combined distributed phased antenna arrays
CN113036436B (en) * 2021-03-02 2022-06-14 电子科技大学 Miniaturized reconfigurable beam forming network architecture

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281010B (en) * 1993-08-12 1998-04-15 Northern Telecom Ltd Base station antenna arrangement
JPH10501661A (en) * 1994-06-03 1998-02-10 テレフオンアクチーボラゲツト エル エム エリクソン Microstrip antenna array
US5495258A (en) * 1994-09-01 1996-02-27 Nicholas L. Muhlhauser Multiple beam antenna system for simultaneously receiving multiple satellite signals
US5581260A (en) * 1995-01-27 1996-12-03 Hazeltine Corporation Angular diversity/spaced diversity cellular antennas and methods
US5684491A (en) * 1995-01-27 1997-11-04 Hazeltine Corporation High gain antenna systems for cellular use
US5563610A (en) * 1995-06-08 1996-10-08 Metawave Communications Corporation Narrow beam antenna systems with angular diversity
US5680142A (en) * 1995-11-07 1997-10-21 Smith; David Anthony Communication system and method utilizing an antenna having adaptive characteristics
US5754138A (en) * 1996-10-30 1998-05-19 Motorola, Inc. Method and intelligent digital beam forming system for interference mitigation
US5856804A (en) * 1996-10-30 1999-01-05 Motorola, Inc. Method and intelligent digital beam forming system with improved signal quality communications

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107660328A (en) * 2011-07-19 2018-02-02 搜诺思公司 Its line options
CN107660328B (en) * 2011-07-19 2020-11-13 搜诺思公司 Antenna selection

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US6167286A (en) 2000-12-26
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