NO992807L - Procedure for diversity as well as base station equipment - Google Patents

Procedure for diversity as well as base station equipment

Info

Publication number
NO992807L
NO992807L NO992807A NO992807A NO992807L NO 992807 L NO992807 L NO 992807L NO 992807 A NO992807 A NO 992807A NO 992807 A NO992807 A NO 992807A NO 992807 L NO992807 L NO 992807L
Authority
NO
Norway
Prior art keywords
diversity
base station
station equipment
radiation patterns
procedure
Prior art date
Application number
NO992807A
Other languages
Norwegian (no)
Other versions
NO992807D0 (en
Inventor
Jukka Lempioinen
Keijo Nikoskinen
Juha Juntunen
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of NO992807D0 publication Critical patent/NO992807D0/en
Publication of NO992807L publication Critical patent/NO992807L/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
    • H04B7/10—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
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam 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
    • H04B7/0837—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

Abstract

Oppfinnelsen angår et basestasjonutstyr og en fremgangsmåte for diversitet i et celledelt radiosystem som omfatter sender/mottakere (100 til 106) som kommuniserer med andre sender/mottakere ved hjelp av strålingsmønstere (110 til 116) som genereres av en eller flere antenner. For å oppnå god diversitets-vinning benyttes fortrinnsvis sender/mottaker- antennene i fremgangsmåten ifølge oppfinnelsen til å generere to eller flere strålingsmønstere med identiske effekt-strålingsmønstere og ulike fase- strålingsmønstere.The invention relates to a base station equipment and a method of diversity in a cellular radio system comprising transmitters / receivers (100 to 106) communicating with other transmitters / receivers by means of radiation patterns (110 to 116) generated by one or more antennas. In order to achieve good diversity gain, the transmitter / receiver antennas in the method of the invention are preferably used to generate two or more radiation patterns with identical power radiation patterns and different phase radiation patterns.

NO992807A 1996-12-10 1999-06-09 Procedure for diversity as well as base station equipment NO992807L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI964937A FI108762B (en) 1996-12-10 1996-12-10 Method for achieving diversity, and base station device
PCT/FI1997/000770 WO1998028861A2 (en) 1996-12-10 1997-12-09 Diversity method and base station equipment

Publications (2)

Publication Number Publication Date
NO992807D0 NO992807D0 (en) 1999-06-09
NO992807L true NO992807L (en) 1999-06-09

Family

ID=8547239

Family Applications (1)

Application Number Title Priority Date Filing Date
NO992807A NO992807L (en) 1996-12-10 1999-06-09 Procedure for diversity as well as base station equipment

Country Status (7)

Country Link
EP (1) EP0944965A2 (en)
JP (1) JP2001505750A (en)
CN (1) CN1240073A (en)
AU (1) AU727262B2 (en)
FI (1) FI108762B (en)
NO (1) NO992807L (en)
WO (1) WO1998028861A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1063790B1 (en) 1999-06-24 2002-05-29 Alcatel Diversity transmission in a Mobile Radio System

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5479448A (en) * 1992-03-31 1995-12-26 At&T Corp. Method and apparatus for providing antenna diversity
EP0647983A3 (en) * 1993-08-12 1995-06-28 Northern Telecom Ltd Base station antenna arrangement.
SE9402493L (en) * 1994-07-15 1996-01-16 Ericsson Telefon Ab L M Method in a diversity receiver
US5848103A (en) * 1995-10-04 1998-12-08 Lucent Technologies Inc. Method and apparatus for providing time diversity
CA2186793C (en) * 1995-11-13 2000-12-19 Vijitha Weerackody Method and apparatus to implement antenna diversity for direct sequence spread spectrum receivers

Also Published As

Publication number Publication date
AU727262B2 (en) 2000-12-07
NO992807D0 (en) 1999-06-09
FI964937A0 (en) 1996-12-10
WO1998028861A2 (en) 1998-07-02
FI108762B (en) 2002-03-15
JP2001505750A (en) 2001-04-24
AU5223698A (en) 1998-07-17
FI964937A (en) 1998-06-11
CN1240073A (en) 1999-12-29
WO1998028861A3 (en) 1998-08-27
EP0944965A2 (en) 1999-09-29

Similar Documents

Publication Publication Date Title
FI120282B (en) Linear coverage antenna system for CDMA communication system
TW358268B (en) Method of and apparatus for interference rejection combining and downlink beamforming in a cellular radiocommunications system
AU2000238190A1 (en) Multi-antenna transmission method and system
AU695327B2 (en) Diversity combining for antennas
NO993838L (en) Procedure for location, as well as facility
AU2003270776A1 (en) Mobile communications system and method for providing mobile unit handover in wireless communication systems that employ beamforming antennas
NO20051742L (en) Vertical beam dynamic system design and method
CA2273295A1 (en) Combined interference cancellation and maximum likelihood decoding of space-time block codes
CA2303388A1 (en) Transmitter diversity technique for wireless communications
AU2001278373A1 (en) Beam forming method using weighting factors that are periodically renewed
AU6075001A (en) Apparatus and method for transmission diversity using more than two antennas
KR19990076867A (en) Apparatus and method for providing antenna diversity to a portable radiotelephone
AU4906697A (en) Method and apparatus for decision directed demodulation using antenna arrays and spatial processing
BR9508102A (en) Digital communication system and process for communicating information signals between a plurality of users within a digital communication system
CA2183116A1 (en) Method and Apparatus for Providing Time Diversity
NO993710L (en) Method and arrangement for adjusting an antenna pattern
NO995155L (en) antenna System
WO2001063779A3 (en) Method and system for economical beam forming in a radio communication system
CO4650254A1 (en) TELECOMMUNICATION SYSTEM, MOBILE, CELLULAR, WITH A NON-TERRESTRIAL ANTENNA AND METHOD OF OPERATION
CA2234923A1 (en) Cdma communication apparatus and cdma communication method
DE59605654D1 (en) Polarization diversity system for mobile communication with adaptive design of the radiation pattern
SE9800201L (en) antenna switching
CN101431359A (en) Method of using pilots in radio system and radio system
GB9926438D0 (en) A method of reducing transmission power in a wireless communication system
NO992807L (en) Procedure for diversity as well as base station equipment

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application