WO1996008850A3 - A radio transmission system and a radio apparatus for use in such a system - Google Patents

A radio transmission system and a radio apparatus for use in such a system Download PDF

Info

Publication number
WO1996008850A3
WO1996008850A3 PCT/IB1995/000735 IB9500735W WO9608850A3 WO 1996008850 A3 WO1996008850 A3 WO 1996008850A3 IB 9500735 W IB9500735 W IB 9500735W WO 9608850 A3 WO9608850 A3 WO 9608850A3
Authority
WO
WIPO (PCT)
Prior art keywords
reception
radio
systems
transmission
fixed
Prior art date
Application number
PCT/IB1995/000735
Other languages
French (fr)
Other versions
WO1996008850A2 (en
Inventor
Petrus Gerardus Maria Baltus
Lukas Leyten
Hendrik Arend Visser
Antoon Marie Henrie Tombeur
Antonius Gerardus Wagemans
Sinderen Jan Van
Original Assignee
Philips Electronics Nv
Philips Norden Ab
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 Philips Electronics Nv, Philips Norden Ab filed Critical Philips Electronics Nv
Priority to JP51003996A priority Critical patent/JP3866283B2/en
Priority to EP95928605A priority patent/EP0728372A1/en
Publication of WO1996008850A2 publication Critical patent/WO1996008850A2/en
Publication of WO1996008850A3 publication Critical patent/WO1996008850A3/en

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
    • 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
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers
    • 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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using 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
    • H04B7/08—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
    • 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
    • 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)
  • Radio Transmission System (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Known are radio transmission systems (1) with phased-array radio apparatuses (2) operating in a multipath transmission environment. The known radio apparatuses try to optimise a reception direction. In strongly varying environments such as in cellular radio systems or cordless telephony systems, the known systems (1) do not operate satisfactorily, because absorbing or reflecting objects and strong interference sources are not taken into account sufficiently. Improved reception is proposed, and in bi-directional systems, also improved transmission. This is achieved by using at least two reception beams, one fixed reception beam, and one scanning reception beam, and by continuously evaluating the quality of these beams as to their signal-to-noise-and-interference ratios or bit-error-rates (BERs). The best beam is dynamically chosen to be the fixed beam. Alternatively, the fixed beam is updated with the best beam acquired by the scanning beam as compared to the current fixed beam. In a bi-directional system (1), the receiving radio apparatus (2) applies the direction of the best reception beam for transmission to the opposite radio apparatus (5).
PCT/IB1995/000735 1994-09-14 1995-09-05 A radio transmission system and a radio apparatus for use in such a system WO1996008850A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP51003996A JP3866283B2 (en) 1994-09-14 1995-09-05 Wireless transmission system and wireless device used in this system
EP95928605A EP0728372A1 (en) 1994-09-14 1995-09-05 A radio transmission system and a radio apparatus for use in such a system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP94202649 1994-09-14
EP94202649.3 1994-09-14

Publications (2)

Publication Number Publication Date
WO1996008850A2 WO1996008850A2 (en) 1996-03-21
WO1996008850A3 true WO1996008850A3 (en) 1996-05-30

Family

ID=8217194

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1995/000735 WO1996008850A2 (en) 1994-09-14 1995-09-05 A radio transmission system and a radio apparatus for use in such a system

Country Status (5)

Country Link
US (1) US5887247A (en)
EP (1) EP0728372A1 (en)
JP (1) JP3866283B2 (en)
CN (1) CN1092847C (en)
WO (1) WO1996008850A2 (en)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI107851B (en) * 1996-05-22 2001-10-15 Nokia Networks Oy Method for selecting antenna cone, a base station and a cellular radio system
US5937341A (en) 1996-09-13 1999-08-10 University Of Washington Simplified high frequency tuner and tuning method
US5929808A (en) * 1997-10-14 1999-07-27 Teledesic Llc System and method for the acquisition of a non-geosynchronous satellite signal
US6195559B1 (en) 1997-11-26 2001-02-27 U.S. Philips Corporation Communication system, a primary radio station, a secondary radio station, and a communication method
US6477197B1 (en) * 1998-06-30 2002-11-05 Arris International, Inc. Method and apparatus for a cable modem upstream RF switching system
EP0959571B1 (en) * 1998-10-22 2001-08-29 Contraves Space AG Apparatus for the homodyne reception of optical phase shift-keyed signals
EP1069706B1 (en) * 1999-06-23 2016-10-05 Texas Instruments Inc. Radio communications apparatus and method with a steerable directional beam antenna
EP1069713B1 (en) * 1999-06-23 2011-08-10 Texas Instruments Inc. Signal quality determination in a radio communications apparatus
DE19942944A1 (en) * 1999-09-08 2001-03-22 Infineon Technologies Ag Communication system and corresponding recipient
US6880932B2 (en) * 1999-11-01 2005-04-19 Praful Doshi Tinted lenses and methods of manufacture
US7048375B2 (en) * 1999-11-01 2006-05-23 Praful Doshi Tinted lenses and methods of manufacture
US7267846B2 (en) 1999-11-01 2007-09-11 Praful Doshi Tinted lenses and methods of manufacture
MXPA02004157A (en) 1999-11-01 2005-02-17 Doshi Praful Tinted lenses and methods of manufacture.
US7010263B1 (en) * 1999-12-14 2006-03-07 Xm Satellite Radio, Inc. System and method for distributing music and data
EP1124391B1 (en) * 2000-02-09 2008-12-24 Texas Instruments Inc. Wireless communications apparatus
US7088765B1 (en) * 2000-03-15 2006-08-08 Ndsu Research Foundation Vector calibration system
FI20001000A (en) * 2000-04-27 2001-10-28 Nokia Mobile Phones Ltd A method and arrangement for receiving a frequency modulated signal
FR2809250B1 (en) * 2000-05-19 2003-10-03 Sagem SHORT-RANGE RADIO RECEIVER WITH ADJUSTABLE LOBE ANTENNA FOR MOTOR VEHICLE DATA
EP1179894B2 (en) * 2000-08-09 2020-01-15 IPCom GmbH & Co. KG Front end for a mobile communication device
US6767097B2 (en) 2001-03-29 2004-07-27 Daniel G. Streibig Colored contact lens and method of making same
US6733126B2 (en) 2001-06-29 2004-05-11 Daniel G. Streibig Colored contact lens and method of making same
US6655804B2 (en) * 2001-06-29 2003-12-02 Daniel G. Streibig Colored contact lens and method of making same
US7103382B2 (en) * 2001-07-10 2006-09-05 Kyocera Wireless Corp. System and method for receiving and transmitting information in a multipath environment
ITTO20011200A1 (en) * 2001-12-21 2003-06-21 Rai Radiotelevisione Italiana PROCEDURE AND RECEIVING APPARATUS OF RADIO SIGNALS, PARTICULARLY OF NUMERICAL MULTI-CARRIER TYPE.
US7099644B2 (en) * 2001-12-28 2006-08-29 Visteon Global Technologies, Inc. Beamsteering control system for a vehicle radio receiver
JP3956739B2 (en) * 2002-03-27 2007-08-08 日本電気株式会社 Multi-beam antenna transmission / reception device, transmission / reception method, and transmission beam selection method
KR100464431B1 (en) * 2002-09-25 2005-01-03 삼성전자주식회사 Apparatus for receiving RF signal free of the 1/f noise in radio communication system and method thereof
US7272375B2 (en) * 2004-06-30 2007-09-18 Silicon Laboratories Inc. Integrated low-IF terrestrial audio broadcast receiver and associated method
JP2006041826A (en) * 2004-07-26 2006-02-09 Matsushita Electric Ind Co Ltd Mobile telephone set
US8503328B2 (en) 2004-09-01 2013-08-06 Qualcomm Incorporated Methods and apparatus for transmission of configuration information in a wireless communication network
US7610025B2 (en) 2005-03-29 2009-10-27 Qualcomm Incorporated Antenna array pattern distortion mitigation
WO2006105316A2 (en) 2005-03-29 2006-10-05 Qualcomm Incorporated Technique for facilitating communication handoffs by directing a directional antenna in the direction of the communication device
US7379750B2 (en) * 2005-03-29 2008-05-27 Qualcomm Incorporated Communications handoff using an adaptive antenna
KR100799580B1 (en) * 2006-09-29 2008-01-30 한국전자통신연구원 Apparatus for selecting antenna and node in mimo system and method thereof
US8155600B2 (en) * 2007-12-03 2012-04-10 Texas Instruments Incorporated Digital communication using an inexpensive reference crystal
FR2939268B1 (en) * 2008-11-28 2011-06-17 Canon Kk METHOD FOR DETERMINING COMMUNICATION PATHS IN A WIRELESS COMMUNICATION NETWORK, COMPUTER PROGRAM PRODUCT, STORAGE MEANS, AND CORRESPONDING DEVICES
TWI486002B (en) * 2013-03-29 2015-05-21 Hon Hai Prec Ind Co Ltd Electronic device capable of eliminating interference
CN107508626A (en) * 2016-06-14 2017-12-22 景略半导体(上海)有限公司 Signal tracing method of reseptance and system
US10804616B2 (en) * 2018-03-27 2020-10-13 Viasat, Inc. Circuit architecture for distributed multiplexed control and element signals for phased array antenna

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584713A (en) * 1983-07-06 1986-04-22 Motorola, Inc. Signal quality steered diversity
WO1993013605A1 (en) * 1991-12-23 1993-07-08 Motorola Limited Radio communications apparatus with diversity
WO1994015411A1 (en) * 1992-12-21 1994-07-07 Motorola, Inc. Method and apparatus for switched diversity reception of a radio signal
EP0610989A2 (en) * 1993-02-05 1994-08-17 Philips Patentverwaltung GmbH Radio system with space diversity transmitter/receiver

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5542790B2 (en) * 1975-01-09 1980-11-01
US4155041A (en) * 1976-05-13 1979-05-15 Burns Richard C System for reducing noise transients
GB2096865B (en) * 1981-03-26 1984-12-12 Ferranti Ltd Diversity receivers
JPS59181732A (en) * 1983-03-31 1984-10-16 Toshiba Corp Diversity receiving system in portable radio equipment
JPS6479683A (en) * 1987-09-22 1989-03-24 Mitsubishi Electric Corp Antenna apparatus
GB2229580B (en) * 1989-02-08 1993-07-21 Stc Plc Adaptive array processor
JPH0338932A (en) * 1989-07-06 1991-02-20 Oki Electric Ind Co Ltd Space diversity system
US5440590A (en) * 1993-11-01 1995-08-08 Motorola, Inc. Method and apparatus for producing a usable signal from received diverse modulated signals
US5457815A (en) * 1994-01-13 1995-10-10 Morewitz, Ii; Herbert RBDS scan, identify and select receiving method and system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584713A (en) * 1983-07-06 1986-04-22 Motorola, Inc. Signal quality steered diversity
WO1993013605A1 (en) * 1991-12-23 1993-07-08 Motorola Limited Radio communications apparatus with diversity
WO1994015411A1 (en) * 1992-12-21 1994-07-07 Motorola, Inc. Method and apparatus for switched diversity reception of a radio signal
EP0610989A2 (en) * 1993-02-05 1994-08-17 Philips Patentverwaltung GmbH Radio system with space diversity transmitter/receiver

Also Published As

Publication number Publication date
EP0728372A1 (en) 1996-08-28
US5887247A (en) 1999-03-23
WO1996008850A2 (en) 1996-03-21
JPH09505717A (en) 1997-06-03
CN1137843A (en) 1996-12-11
CN1092847C (en) 2002-10-16
JP3866283B2 (en) 2007-01-10

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