GB2318705B - Mobile telephone systems - Google Patents

Mobile telephone systems

Info

Publication number
GB2318705B
GB2318705B GB9621996A GB9621996A GB2318705B GB 2318705 B GB2318705 B GB 2318705B GB 9621996 A GB9621996 A GB 9621996A GB 9621996 A GB9621996 A GB 9621996A GB 2318705 B GB2318705 B GB 2318705B
Authority
GB
United Kingdom
Prior art keywords
mobile telephone
telephone systems
systems
mobile
telephone
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.)
Expired - Fee Related
Application number
GB9621996A
Other versions
GB2318705A (en
GB9621996D0 (en
Inventor
Behzad Mohebbi
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.)
Motorola Solutions UK Ltd
Original Assignee
Motorola 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 Motorola Ltd filed Critical Motorola Ltd
Priority to GB9621996A priority Critical patent/GB2318705B/en
Publication of GB9621996D0 publication Critical patent/GB9621996D0/en
Priority to PCT/EP1997/004760 priority patent/WO1998018176A1/en
Priority to AU46200/97A priority patent/AU4620097A/en
Publication of GB2318705A publication Critical patent/GB2318705A/en
Application granted granted Critical
Publication of GB2318705B publication Critical patent/GB2318705B/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
    • H04B7/0891—Space-time diversity
    • H04B7/0894—Space-time diversity using different delays between 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
    • H04B7/06—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)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
GB9621996A 1996-10-22 1996-10-22 Mobile telephone systems Expired - Fee Related GB2318705B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9621996A GB2318705B (en) 1996-10-22 1996-10-22 Mobile telephone systems
PCT/EP1997/004760 WO1998018176A1 (en) 1996-10-22 1997-08-25 Base station with adaptive arrays for minimizing the effects of multipath transmission
AU46200/97A AU4620097A (en) 1996-10-22 1997-08-25 Base station with adaptive arrays for minimizing the effects of multipath transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9621996A GB2318705B (en) 1996-10-22 1996-10-22 Mobile telephone systems

Publications (3)

Publication Number Publication Date
GB9621996D0 GB9621996D0 (en) 1996-12-18
GB2318705A GB2318705A (en) 1998-04-29
GB2318705B true GB2318705B (en) 2001-05-02

Family

ID=10801809

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9621996A Expired - Fee Related GB2318705B (en) 1996-10-22 1996-10-22 Mobile telephone systems

Country Status (3)

Country Link
AU (1) AU4620097A (en)
GB (1) GB2318705B (en)
WO (1) WO1998018176A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000013446A1 (en) * 1998-09-01 2000-03-09 Siemens Aktiengesellschaft Method for transmitting voice information in a radiocommunication system
US7154846B2 (en) 2000-10-24 2006-12-26 Nortel Networks Limited Shared channel structure, ARQ systems and methods
JP3888189B2 (en) 2002-03-12 2007-02-28 松下電器産業株式会社 Adaptive antenna base station equipment
JP3895228B2 (en) 2002-05-07 2007-03-22 松下電器産業株式会社 Wireless communication apparatus and direction of arrival estimation method
RU2614030C1 (en) * 2016-02-05 2017-03-22 Федеральное государственное бюджетное учреждение "Центральный научно-исследовательский институт Войск воздушно-космической обороны Минобороны России (ФГБУ "ЦНИИ ВВКО Минобороны России") Method of forming stacked beam of self-focusing adaptive antenna array

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5260968A (en) * 1992-06-23 1993-11-09 The Regents Of The University Of California Method and apparatus for multiplexing communications signals through blind adaptive spatial filtering
JP2982504B2 (en) * 1992-07-31 1999-11-22 日本電気株式会社 Adaptive receiver
AU5354294A (en) * 1992-10-09 1994-05-09 E-Systems Incorporated Adaptive co-channel interference reduction system for cellular telephone central base stations

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHEN J-T, PAULRAJ A: "SPACE TIME PROCESSING FOR FAST FADING CHANNELS WITH CO-CHANNEL INTERFERENCES"; *
CONT. 1996 IEEE 46TH VEHICULAR TECHNOLOGY CONFERENCE, PAGES 1491-1495, XP00259905. *

Also Published As

Publication number Publication date
GB2318705A (en) 1998-04-29
GB9621996D0 (en) 1996-12-18
AU4620097A (en) 1998-05-15
WO1998018176A1 (en) 1998-04-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20011022