CA2000321A1 - Diversity transmission and reception method and equipment - Google Patents

Diversity transmission and reception method and equipment

Info

Publication number
CA2000321A1
CA2000321A1 CA2000321A CA2000321A CA2000321A1 CA 2000321 A1 CA2000321 A1 CA 2000321A1 CA 2000321 A CA2000321 A CA 2000321A CA 2000321 A CA2000321 A CA 2000321A CA 2000321 A1 CA2000321 A1 CA 2000321A1
Authority
CA
Canada
Prior art keywords
transmission
antenna
equipment
reception
diversity transmission
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
CA2000321A
Other languages
French (fr)
Other versions
CA2000321C (en
Inventor
Yoshihiko Akaiwa
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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
Priority claimed from JP63256603A external-priority patent/JP2735586B2/en
Priority claimed from JP1138010A external-priority patent/JP2746658B2/en
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of CA2000321A1 publication Critical patent/CA2000321A1/en
Application granted granted Critical
Publication of CA2000321C publication Critical patent/CA2000321C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • H04B7/0817—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 multiple receivers and antenna path selection
    • H04B7/082—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 multiple receivers and antenna path selection selecting best antenna path
    • 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
    • H04B7/0602—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 antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • 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
    • H04B7/0808—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 comparing all antennas before reception
    • H04B7/0811—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 comparing all antennas before reception during preamble or gap period

Abstract

TITLE OF THE INVENTION
"DIVERSITY TRANSMISSION AND RECEPTION METHOD AND
EQUIPMENT"
ABSTRACT OF THE DISCLOSURE
In an antenna-selection diversity transmission and reception equipment which is in digital communication with a transmission and reception equipment having a single antenna, and performs transmission and reception with time division by using the same radio frequencies, the antenna-selection diversity transmission and reception equipment comprises a plurality of antennae, a receiving part having a receiving unit, comparing-unit and selecting unit which are adapted for a receiving-antenna selection diversity, and a transmitting part having a memory unit for storing antenna information that was selected by the receiving part. An antenna for transmission is selected from the plurality of antennae at the time of transmission in accordance with the information of the memory unit.
CA002000321A 1988-10-12 1989-10-06 Diversity transmission and reception method and equipment Expired - Fee Related CA2000321C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP25660288 1988-10-12
JP63-256602 1988-10-12
JP63256603A JP2735586B2 (en) 1988-10-12 1988-10-12 Diversity wireless communication method and wireless device using diversity wireless communication method
JP63-256603 1988-10-12
JP1-138010 1989-05-31
JP1138010A JP2746658B2 (en) 1988-10-12 1989-05-31 Antenna selection diversity radio

Publications (2)

Publication Number Publication Date
CA2000321A1 true CA2000321A1 (en) 1990-04-12
CA2000321C CA2000321C (en) 1994-04-05

Family

ID=27317577

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002000321A Expired - Fee Related CA2000321C (en) 1988-10-12 1989-10-06 Diversity transmission and reception method and equipment

Country Status (5)

Country Link
US (1) US5097484A (en)
EP (2) EP0582323B1 (en)
CA (1) CA2000321C (en)
DE (2) DE68920257T2 (en)
FI (1) FI894821A (en)

Families Citing this family (137)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5708833A (en) * 1993-04-27 1998-01-13 Norand Corporation Antenna cap, antenna connectors and telephone line connectors for computer devices utilizing radio and modem cards
US6431451B1 (en) * 1991-02-25 2002-08-13 Intermec Ip Corp. Hand-held data capture system with interchangeable modules
US5504936A (en) 1991-04-02 1996-04-02 Airtouch Communications Of California Microcells for digital cellular telephone systems
US5243598A (en) * 1991-04-02 1993-09-07 Pactel Corporation Microcell system in digital cellular
US5285469A (en) * 1991-06-03 1994-02-08 Omnipoint Data Corporation Spread spectrum wireless telephone system
GB2262863B (en) * 1991-12-23 1995-06-21 Motorola Ltd Radio communications apparatus with diversity
DE4213882A1 (en) * 1992-04-28 1993-11-04 Bosch Gmbh Robert DEVICE OF A VEHICLE FOR DATA TRANSFER TO A FIXED BAKE AND COMMUNICATION SYSTEM FORMED WITH IT
DE4213879A1 (en) * 1992-04-28 1993-11-04 Bosch Gmbh Robert COMMUNICATION SYSTEM FOR DATA TRANSFER FROM A MOVING VEHICLE TO A FIXED BEAK
DE4213881A1 (en) * 1992-04-28 1993-11-04 Bosch Gmbh Robert BIDIRECTIONAL DATA TRANSMISSION SYSTEM BETWEEN A BEAK AND A VEHICLE
US5369801A (en) * 1992-09-25 1994-11-29 Northern Telecom Limited Antenna diversity reception in wireless personal communications
US5504779A (en) * 1992-12-04 1996-04-02 Reliance Electric Industrial Company Redundancy modem
US5325403A (en) * 1992-12-09 1994-06-28 Motorola, Inc. Method and apparatus for dual-channel diversity reception of a radio signal
DE4303355A1 (en) * 1993-02-05 1994-08-11 Philips Patentverwaltung Radio system
US7119750B2 (en) * 1993-04-27 2006-10-10 Broadcom Corporation Radio transceiver card communicating in a plurality of frequency bands
US6928302B1 (en) 1993-04-27 2005-08-09 Broadcom Corporation Radio card having independent antenna interface supporting antenna diversity
US7469150B2 (en) * 1993-04-27 2008-12-23 Broadcom Corporation Radio card having independent antenna interface supporting antenna diversity
US5507035A (en) * 1993-04-30 1996-04-09 International Business Machines Corporation Diversity transmission strategy in mobile/indoor cellula radio communications
DE4322863C2 (en) * 1993-07-09 1995-05-18 Ant Nachrichtentech Cellular antenna system
US5459873A (en) * 1993-08-21 1995-10-17 Motorola, Inc. Method and communication system for improved channel scanning and link establishment determinations
AU684549B2 (en) * 1993-09-28 1997-12-18 Kabushiki Kaisha Toshiba Selective diversity system
EP0989697B1 (en) * 1993-09-30 2004-06-30 Skyworks Solutions, Inc. Multiple antenna home base for digital cordless telephones
US6088590A (en) * 1993-11-01 2000-07-11 Omnipoint Corporation Method and system for mobile controlled handoff and link maintenance in spread spectrum communication
US6005856A (en) * 1993-11-01 1999-12-21 Omnipoint Corporation Communication protocol for spread spectrum wireless communication system
US6094575A (en) * 1993-11-01 2000-07-25 Omnipoint Corporation Communication system and method
US5960344A (en) * 1993-12-20 1999-09-28 Norand Corporation Local area network having multiple channel wireless access
US5546397A (en) * 1993-12-20 1996-08-13 Norand Corporation High reliability access point for wireless local area network
JP2876517B2 (en) * 1994-02-16 1999-03-31 松下電器産業株式会社 CDMA / TDD base station apparatus, CDMA / TDD mobile station apparatus, CDMA / TDD wireless communication system, and CDMA / TDD wireless communication method
GB2291271B (en) 1994-07-09 1998-05-13 Northern Telecom Ltd Communications antenna structure
US5614914A (en) * 1994-09-06 1997-03-25 Interdigital Technology Corporation Wireless telephone distribution system with time and space diversity transmission for determining receiver location
US5953370A (en) 1994-09-09 1999-09-14 Omnipoint Corporation Apparatus for receiving and correlating a spread spectrum signal
US5742583A (en) 1994-11-03 1998-04-21 Omnipoint Corporation Antenna diversity techniques
KR960027576A (en) * 1994-12-01 1996-07-22 리차드 탤런 Wireless Signal Scanning and Targeting System for Land Mobile Wireless Base Sites
US5701596A (en) * 1994-12-01 1997-12-23 Radio Frequency Systems, Inc. Modular interconnect matrix for matrix connection of a plurality of antennas with a plurality of radio channel units
US5581260A (en) * 1995-01-27 1996-12-03 Hazeltine Corporation Angular diversity/spaced diversity cellular antennas and methods
CA2164169A1 (en) * 1995-01-31 1996-08-01 Sheldon Kent Meredith Radio signal scanning and targeting system for use in land mobile radio base sites
JP2751869B2 (en) * 1995-04-28 1998-05-18 日本電気株式会社 Transmit diversity method
US5912925A (en) 1995-05-18 1999-06-15 Aura Communications, Inc. Diversity circuit for magnetic communication system
CN1178406C (en) * 1995-05-18 2004-12-01 奥拉通讯公司 Shot-range magnetic communication system
US6356607B1 (en) 1995-06-05 2002-03-12 Omnipoint Corporation Preamble code structure and detection method and apparatus
US5959980A (en) 1995-06-05 1999-09-28 Omnipoint Corporation Timing adjustment control for efficient time division duplex communication
US5802046A (en) * 1995-06-05 1998-09-01 Omnipoint Corporation Efficient time division duplex communication system with interleaved format and timing adjustment control
US5745484A (en) 1995-06-05 1998-04-28 Omnipoint Corporation Efficient communication system using time division multiplexing and timing adjustment control
US5689502A (en) * 1995-06-05 1997-11-18 Omnipoint Corporation Efficient frequency division duplex communication system with interleaved format and timing adjustment control
US6041046A (en) * 1995-07-14 2000-03-21 Omnipoint Corporation Cyclic time hopping in time division multiple access communication system
US5732076A (en) * 1995-10-26 1998-03-24 Omnipoint Corporation Coexisting communication systems
US5870681A (en) * 1995-12-28 1999-02-09 Lucent Technologies, Inc. Self-steering antenna array
US5669060A (en) * 1996-03-04 1997-09-16 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for enhancing call set-up and handoff quality
US5697066A (en) * 1996-03-07 1997-12-09 The Trustees Of Columbia University Media access protocol for packet access within a radio cell
JP2947157B2 (en) * 1996-03-07 1999-09-13 日本電気株式会社 Transmission space diversity control method and transmission space diversity apparatus
US6697415B1 (en) * 1996-06-03 2004-02-24 Broadcom Corporation Spread spectrum transceiver module utilizing multiple mode transmission
US6006075A (en) * 1996-06-18 1999-12-21 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for transmitting communication signals using transmission space diversity and frequency diversity
US6243565B1 (en) 1996-06-18 2001-06-05 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for transmitting communication signals using frequency and polarization diversity
US6198925B1 (en) 1996-08-30 2001-03-06 Cellco Partnership Method and apparatus for intelligent microcell and antenna selection in digital cellular telephone systems
US6011487A (en) * 1996-09-17 2000-01-04 Ncr Corporation System and method of locating wireless devices
CA2188845A1 (en) * 1996-10-25 1998-04-25 Stephen Ross Todd Diversity Antenna Selection
US6141373A (en) * 1996-11-15 2000-10-31 Omnipoint Corporation Preamble code structure and detection method and apparatus
US5960046A (en) * 1996-12-03 1999-09-28 Northern Telecom Limited Preamble based selection diversity in a time division multiple access radio system
US6032033A (en) * 1996-12-03 2000-02-29 Nortel Networks Corporation Preamble based selection diversity in a time division multiple access radio system using digital demodulation
US6289209B1 (en) 1996-12-18 2001-09-11 Micron Technology, Inc. Wireless communication system, radio frequency communications system, wireless communications method, radio frequency communications method
US5842118A (en) * 1996-12-18 1998-11-24 Micron Communications, Inc. Communication system including diversity antenna queuing
JPH10285056A (en) * 1997-03-31 1998-10-23 Nec Corp Antenna changeover device
US6085076A (en) * 1997-04-07 2000-07-04 Omnipoint Corporation Antenna diversity for wireless communication system
JP3290926B2 (en) * 1997-07-04 2002-06-10 松下電器産業株式会社 Transmit diversity device
US6341124B1 (en) 1998-03-13 2002-01-22 Telefonaktiebolaget Lm Ericsson Accommodating packet data loss at base stations interfacing between a packet switched network and a CDMA macrodiversity network
JP2002026796A (en) 1998-04-07 2002-01-25 Matsushita Electric Ind Co Ltd Wireless communication equipment and wireless communication system
FI981377A (en) * 1998-04-24 1999-10-25 Nokia Networks Oy Sändarantenndiversitet
DE19820460C2 (en) * 1998-05-07 2000-03-30 Siemens Ag Cellular base station with adaptive antenna
DE19824152C2 (en) * 1998-05-29 2003-06-05 Siemens Ag Method and radio station for signal transmission in a radio communication system
KR20000002504A (en) * 1998-06-20 2000-01-15 윤종용 Selective transmitting diversity device of mobile communication system and method thereof
IL135678A (en) * 1998-08-20 2005-03-20 Samsung Electronics Co Ltd Channel communication device and method for mobile communication system using transmission antenna diversity
US6330458B1 (en) * 1998-08-31 2001-12-11 Lucent Technologies Inc. Intelligent antenna sub-sector switching for time slotted systems
JP3380481B2 (en) * 1998-12-17 2003-02-24 松下電器産業株式会社 Base station equipment
GB2347828B (en) 1999-03-05 2004-05-19 Internat Mobile Satellite Orga Communication methods and apparatus
JP3667549B2 (en) * 1999-03-29 2005-07-06 日本電気株式会社 Diversity receiver
SE517197C2 (en) 1999-04-15 2002-05-07 Ericsson Telefon Ab L M Adaptive sector classification
US6947469B2 (en) 1999-05-07 2005-09-20 Intel Corporation Method and Apparatus for wireless spread spectrum communication with preamble processing period
JP4232879B2 (en) * 1999-09-02 2009-03-04 パナソニック株式会社 Communication device
DE10014352A1 (en) * 2000-03-24 2001-10-04 Elan Schaltelemente Gmbh & Co Arrangement for transmitting security-relevant data over radio path has second antenna and redundant evaluation device per station with both antennae being connected to transmitter and/or receiver
AU2001284723A1 (en) 2000-08-03 2002-02-18 Morphics Technology, Inc. Dynamically reconfigurable universal transmitter system
KR100614410B1 (en) * 2000-12-01 2006-08-18 주식회사 케이티 The Apparatus and Method for Detecting the Signals of Space-Time Coding based Transmit Diversity
US20020132583A1 (en) * 2001-03-19 2002-09-19 Jelinek Lenka M. Antenna system, software and methods for locating an object
US7103382B2 (en) 2001-07-10 2006-09-05 Kyocera Wireless Corp. System and method for receiving and transmitting information in a multipath environment
JP4130191B2 (en) * 2004-01-28 2008-08-06 三洋電機株式会社 Transmitter
TWI253811B (en) * 2004-01-28 2006-04-21 Sanyo Electric Co Transmission method and device, reception method and device, and communication system using the same
US7292198B2 (en) * 2004-08-18 2007-11-06 Ruckus Wireless, Inc. System and method for an omnidirectional planar antenna apparatus with selectable elements
US7933628B2 (en) 2004-08-18 2011-04-26 Ruckus Wireless, Inc. Transmission and reception parameter control
US7193562B2 (en) 2004-11-22 2007-03-20 Ruckus Wireless, Inc. Circuit board having a peripheral antenna apparatus with selectable antenna elements
US8031129B2 (en) 2004-08-18 2011-10-04 Ruckus Wireless, Inc. Dual band dual polarization antenna array
US7899497B2 (en) * 2004-08-18 2011-03-01 Ruckus Wireless, Inc. System and method for transmission parameter control for an antenna apparatus with selectable elements
US7652632B2 (en) * 2004-08-18 2010-01-26 Ruckus Wireless, Inc. Multiband omnidirectional planar antenna apparatus with selectable elements
US7696946B2 (en) * 2004-08-18 2010-04-13 Ruckus Wireless, Inc. Reducing stray capacitance in antenna element switching
US7965252B2 (en) * 2004-08-18 2011-06-21 Ruckus Wireless, Inc. Dual polarization antenna array with increased wireless coverage
US7880683B2 (en) * 2004-08-18 2011-02-01 Ruckus Wireless, Inc. Antennas with polarization diversity
US7505447B2 (en) * 2004-11-05 2009-03-17 Ruckus Wireless, Inc. Systems and methods for improved data throughput in communications networks
US8638708B2 (en) * 2004-11-05 2014-01-28 Ruckus Wireless, Inc. MAC based mapping in IP based communications
US8619662B2 (en) * 2004-11-05 2013-12-31 Ruckus Wireless, Inc. Unicast to multicast conversion
US9240868B2 (en) 2004-11-05 2016-01-19 Ruckus Wireless, Inc. Increasing reliable data throughput in a wireless network
US7358912B1 (en) * 2005-06-24 2008-04-15 Ruckus Wireless, Inc. Coverage antenna apparatus with selectable horizontal and vertical polarization elements
US8792414B2 (en) * 2005-07-26 2014-07-29 Ruckus Wireless, Inc. Coverage enhancement using dynamic antennas
US7893882B2 (en) 2007-01-08 2011-02-22 Ruckus Wireless, Inc. Pattern shaping of RF emission patterns
US7646343B2 (en) * 2005-06-24 2010-01-12 Ruckus Wireless, Inc. Multiple-input multiple-output wireless antennas
US20060237384A1 (en) * 2005-04-20 2006-10-26 Eric Neumann Track unit with removable partitions
GB2426407B (en) * 2005-05-19 2010-01-06 Roke Manor Research Transceiver antannae arrangement
US7893813B2 (en) * 2005-07-28 2011-02-22 Intermec Ip Corp. Automatic data collection device, method and article
WO2007035863A2 (en) 2005-09-21 2007-03-29 Intermec Ip Corp. Radio frequency identification tags based on coalition formation
EP2763443B1 (en) 2005-12-01 2019-05-22 Ruckus Wireless, Inc. On-demand services by wireless base station virtualization
US8120461B2 (en) * 2006-04-03 2012-02-21 Intermec Ip Corp. Automatic data collection device, method and article
US7788703B2 (en) * 2006-04-24 2010-08-31 Ruckus Wireless, Inc. Dynamic authentication in secured wireless networks
US9071583B2 (en) * 2006-04-24 2015-06-30 Ruckus Wireless, Inc. Provisioned configuration for automatic wireless connection
US9769655B2 (en) 2006-04-24 2017-09-19 Ruckus Wireless, Inc. Sharing security keys with headless devices
US7639106B2 (en) * 2006-04-28 2009-12-29 Ruckus Wireless, Inc. PIN diode network for multiband RF coupling
US20070293178A1 (en) * 2006-05-23 2007-12-20 Darin Milton Antenna Control
US8002173B2 (en) * 2006-07-11 2011-08-23 Intermec Ip Corp. Automatic data collection device, method and article
US7579955B2 (en) * 2006-08-11 2009-08-25 Intermec Ip Corp. Device and method for selective backscattering of wireless communications signals
US8670725B2 (en) * 2006-08-18 2014-03-11 Ruckus Wireless, Inc. Closed-loop automatic channel selection
JP5235342B2 (en) * 2007-06-22 2013-07-10 キヤノン株式会社 Communication apparatus, control method, and program
US8547899B2 (en) * 2007-07-28 2013-10-01 Ruckus Wireless, Inc. Wireless network throughput enhancement through channel aware scheduling
US8355343B2 (en) * 2008-01-11 2013-01-15 Ruckus Wireless, Inc. Determining associations in a mesh network
US8217843B2 (en) 2009-03-13 2012-07-10 Ruckus Wireless, Inc. Adjustment of radiation patterns utilizing a position sensor
US8698675B2 (en) * 2009-05-12 2014-04-15 Ruckus Wireless, Inc. Mountable antenna elements for dual band antenna
CN102687418B (en) * 2009-11-13 2016-08-17 皇家飞利浦电子股份有限公司 System and method and communication unit for the physiological data that communicates
US9979626B2 (en) 2009-11-16 2018-05-22 Ruckus Wireless, Inc. Establishing a mesh network with wired and wireless links
EP2350863B1 (en) * 2009-11-16 2015-08-26 Ruckus Wireless, Inc. Establishing a mesh network with wired and wireless links
US8918062B2 (en) 2009-12-08 2014-12-23 Qualcomm Incorporated Combined intelligent receive diversity (IRD) and mobile transmit diversity (MTD) with independent antenna switching for uplink and downlink
US9407012B2 (en) 2010-09-21 2016-08-02 Ruckus Wireless, Inc. Antenna with dual polarization and mountable antenna elements
JP6066997B2 (en) 2011-05-01 2017-01-25 ラッカス ワイヤレス， インコーポレイテッド Remote cable access point reset
US8756668B2 (en) 2012-02-09 2014-06-17 Ruckus Wireless, Inc. Dynamic PSK for hotspots
US10186750B2 (en) 2012-02-14 2019-01-22 Arris Enterprises Llc Radio frequency antenna array with spacing element
US9634403B2 (en) 2012-02-14 2017-04-25 Ruckus Wireless, Inc. Radio frequency emission pattern shaping
WO2013140197A1 (en) * 2012-03-23 2013-09-26 Sony Mobile Communications Ab Antenna swapping methods including comparing performance characteristics of first and second antennas, and related portable electronic devices
US9092610B2 (en) 2012-04-04 2015-07-28 Ruckus Wireless, Inc. Key assignment for a brand
US9570799B2 (en) 2012-09-07 2017-02-14 Ruckus Wireless, Inc. Multiband monopole antenna apparatus with ground plane aperture
US9007970B2 (en) 2012-10-11 2015-04-14 Sony Corporation Antenna swapping methods including repeatedly swapping between antennas, and related wireless electronic devices
US10230161B2 (en) 2013-03-15 2019-03-12 Arris Enterprises Llc Low-band reflector for dual band directional antenna
US9893715B2 (en) * 2013-12-09 2018-02-13 Shure Acquisition Holdings, Inc. Adaptive self-tunable antenna system and method
CN109257082A (en) * 2017-07-14 2019-01-22 中兴通讯股份有限公司 A kind of antenna switching handling method, apparatus and system
US11722412B1 (en) 2020-09-28 2023-08-08 Amazon Technologies, Inc. Dynamically managing connection parameters among multiple computing devices

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6408627A (en) * 1964-07-29 1966-01-31
US3375516A (en) * 1967-05-26 1968-03-26 Navy Usa Dual antenna system for transponder beacon devices
US4041397A (en) * 1976-04-28 1977-08-09 The United States Of America As Represented By The Secretary Of The Navy Satellite up link diversity switch
US4317218A (en) * 1980-03-26 1982-02-23 General Electric Company Arrangement for remote control of repeater stations
US4383332A (en) * 1980-11-21 1983-05-10 Bell Telephone Laboratories, Incorporated High capacity digital mobile radio system
US4513412A (en) * 1983-04-25 1985-04-23 At&T Bell Laboratories Time division adaptive retransmission technique for portable radio telephones
DE3678887D1 (en) * 1985-09-17 1991-05-29 Siemens Ag NEWS TRANSMISSION SYSTEM FOR ELECTROMAGNETIC WAVES.
JPH07120977B2 (en) * 1987-09-16 1995-12-20 松下電器産業株式会社 Optical coupling device
US4953197A (en) * 1988-12-08 1990-08-28 International Mobile Machines Corporation Combination spatial diversity system

Also Published As

Publication number Publication date
DE68920257D1 (en) 1995-02-09
EP0364190B1 (en) 1994-12-28
DE68928660D1 (en) 1998-06-04
EP0364190A3 (en) 1992-03-04
DE68920257T2 (en) 1995-08-10
US5097484A (en) 1992-03-17
CA2000321C (en) 1994-04-05
FI894821A0 (en) 1989-10-11
EP0364190A2 (en) 1990-04-18
EP0582323B1 (en) 1998-04-29
EP0582323A1 (en) 1994-02-09
DE68928660T2 (en) 1998-12-24
FI894821A (en) 1990-04-13

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