EP0817308A3 - Method for the automatic selection of one beam among those formed by a multibeam antenna, in particular for radiomobile systems - Google Patents

Method for the automatic selection of one beam among those formed by a multibeam antenna, in particular for radiomobile systems Download PDF

Info

Publication number
EP0817308A3
EP0817308A3 EP97111319A EP97111319A EP0817308A3 EP 0817308 A3 EP0817308 A3 EP 0817308A3 EP 97111319 A EP97111319 A EP 97111319A EP 97111319 A EP97111319 A EP 97111319A EP 0817308 A3 EP0817308 A3 EP 0817308A3
Authority
EP
European Patent Office
Prior art keywords
selection
radiomobile
systems
automatic selection
multibeam antenna
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
EP97111319A
Other languages
German (de)
French (fr)
Other versions
EP0817308B1 (en
EP0817308A2 (en
Inventor
Fulvio Margherita
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.)
Siemens Holding SpA
Original Assignee
Italtel SpA
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 Italtel SpA filed Critical Italtel SpA
Publication of EP0817308A2 publication Critical patent/EP0817308A2/en
Publication of EP0817308A3 publication Critical patent/EP0817308A3/en
Application granted granted Critical
Publication of EP0817308B1 publication Critical patent/EP0817308B1/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
    • 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

Abstract

The invention relates to a method for the automatic selection of a beam among those set up by a multibeam antenna, in particular for radiomobile systems comprising an equipment for the reception of radio frequency signals provided with an array (10) of radiant and/or receiving elements, a beam former (5) connected downstream of the array and a device for the selection (9) of the best beam linked to the beam former (5). The selection of the best beam is carried out by the selection device (9) choosing the beam presenting the minimum value of an estimation of the decoding error probability of the received signals (Fig. 1).
EP97111319A 1996-07-04 1997-07-04 Method for the automatic selection of one beam among those formed by a multibeam antenna, in particular for radiomobile systems Expired - Lifetime EP0817308B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96MI001369A IT1285217B1 (en) 1996-07-04 1996-07-04 METHOD FOR THE AUTOMATIC SELECTION OF A BEAM AMONG THOSE FORMED BY A MULTI BEAM ANTENNA, PARTICULARLY FOR MOBILE RADIO SYSTEMS
ITMI961369 1996-07-04

Publications (3)

Publication Number Publication Date
EP0817308A2 EP0817308A2 (en) 1998-01-07
EP0817308A3 true EP0817308A3 (en) 1998-04-08
EP0817308B1 EP0817308B1 (en) 2002-11-27

Family

ID=11374530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97111319A Expired - Lifetime EP0817308B1 (en) 1996-07-04 1997-07-04 Method for the automatic selection of one beam among those formed by a multibeam antenna, in particular for radiomobile systems

Country Status (3)

Country Link
EP (1) EP0817308B1 (en)
DE (1) DE69717354T2 (en)
IT (1) IT1285217B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE10025987C2 (en) * 2000-05-25 2002-04-04 Siemens Ag Method of controlling downlink beamforming
WO2009080101A1 (en) * 2007-12-20 2009-07-02 Telefonaktiebolaget Lm Ericsson (Publ) An improved antenna arrangement in an electronic device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303240A (en) * 1991-07-08 1994-04-12 Motorola, Inc. Telecommunications system using directional antennas
WO1996023329A1 (en) * 1995-01-27 1996-08-01 Hazeltine Corporation High gain antenna systems for cellular use
US5590399A (en) * 1995-02-23 1996-12-31 Nextel Communications Up-link channel assignment scheme for cellular mobile communications systems employing multi-beam antennas with beam selection
WO1997044978A1 (en) * 1996-05-22 1997-11-27 Nokia Telecommunications Oy Method and system for selecting an antenna beam of a base station of a radio system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303240A (en) * 1991-07-08 1994-04-12 Motorola, Inc. Telecommunications system using directional antennas
WO1996023329A1 (en) * 1995-01-27 1996-08-01 Hazeltine Corporation High gain antenna systems for cellular use
US5590399A (en) * 1995-02-23 1996-12-31 Nextel Communications Up-link channel assignment scheme for cellular mobile communications systems employing multi-beam antennas with beam selection
WO1997044978A1 (en) * 1996-05-22 1997-11-27 Nokia Telecommunications Oy Method and system for selecting an antenna beam of a base station of a radio system

Also Published As

Publication number Publication date
IT1285217B1 (en) 1998-06-03
EP0817308B1 (en) 2002-11-27
DE69717354D1 (en) 2003-01-09
EP0817308A2 (en) 1998-01-07
DE69717354T2 (en) 2003-09-18
ITMI961369A0 (en) 1996-07-04
ITMI961369A1 (en) 1998-01-04

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