WO2003107563A1 - Reseau d'antennes a recepteur de diversite et procede permettant de selectionner une antenne parmi plusieurs antennes - Google Patents

Reseau d'antennes a recepteur de diversite et procede permettant de selectionner une antenne parmi plusieurs antennes Download PDF

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Publication number
WO2003107563A1
WO2003107563A1 PCT/IB2003/002220 IB0302220W WO03107563A1 WO 2003107563 A1 WO2003107563 A1 WO 2003107563A1 IB 0302220 W IB0302220 W IB 0302220W WO 03107563 A1 WO03107563 A1 WO 03107563A1
Authority
WO
WIPO (PCT)
Prior art keywords
antennas
antenna
receiver unit
change
receiver
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.)
Ceased
Application number
PCT/IB2003/002220
Other languages
English (en)
Inventor
Hendricus Martinus Van Der Wijst
Ernst Bressau
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Intellectual Property and Standards GmbH
Koninklijke Philips Electronics NV
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 Intellectual Property and Standards GmbH, Koninklijke Philips Electronics NV filed Critical Philips Intellectual Property and Standards GmbH
Priority to AU2003240176A priority Critical patent/AU2003240176A1/en
Publication of WO2003107563A1 publication Critical patent/WO2003107563A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • H04B7/0805—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
    • 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
    • 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
    • H04B7/0822—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 according to predefined selection scheme

Definitions

  • the selection of the antenna to be coupled to the receiver unit may be made according to various programs while taking the information into account supplied by the background receiver unit.
  • a very simple and at the same time efficient method then provides that for a connection to the receiver unit the antenna is selected that currently has the highest signal strength.
  • a certain hysteresis may be added to avoid an undesired, frequent changing in the case of a plurality of antennas having the same signal strength.
  • the variation of the signal strengths of the antennas provide a forecast for the further variation of the signal strengths and the selection of the antenna to be connected to the receiver unit is made while this forecast is taken into account. Since the signal strengths on the individual antennas are continuously monitored, their complete variation over time is known.
  • the control unit 6 can decide which of the antennas la-lc has the best signal and compare it with the antenna that is currently coupled to the main receiver unit 2a via the first change-over switch 5a.
  • the control unit 6 can further make its decision also based on a forecast of the signal strength variation. For example a large negative rise of the signal strength of an antenna indicates that there is a signal interruption (dip). In that case the control unit 6 can timely change the signal receive path to an antenna having a constant or rising signal level, so that the upcoming interference cannot first have its effect on the reception.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)

Abstract

L'invention concerne un réseau d'antennes à récepteur de diversité ainsi qu'un procédé permettant de sélectionner une antenne parmi plusieurs antennes (1a, 1b, 1c) de ce réseau. L'antenne sélectionnée est ensuite couplée à une unité de récepteur (principale) (2a) par l'intermédiaire d'un commutateur (5a). Selon cette invention, une unité de récepteur de fond (2b) est reliée aux antennes (1a, 1b, 1c) de façon cyclique par l'intermédiaire d'un second commutateur (5b) et surveille de façon continue la puissance de signal de ces antennes. Une unité de commande (6) peut ensuite détecter l'antenne ayant la meilleure puissance de signal et coupler cette dernière à l'unité de récepteur (2a) par l'intermédiaire du premier commutateur (5a). Par ailleurs, des prévisions concernant la variation des puissances de signal peuvent également être prises en compte.
PCT/IB2003/002220 2002-06-14 2003-06-11 Reseau d'antennes a recepteur de diversite et procede permettant de selectionner une antenne parmi plusieurs antennes Ceased WO2003107563A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003240176A AU2003240176A1 (en) 2002-06-14 2003-06-11 Antenna diversity receiver array and method of selecting an antenna from a plurality of antennas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2002126512 DE10226512A1 (de) 2002-06-14 2002-06-14 Antennendiversity-Empfangsanlage und Verfahren zur Auswahl einer von mehreren Antennen
DE10226512.7 2002-06-14

Publications (1)

Publication Number Publication Date
WO2003107563A1 true WO2003107563A1 (fr) 2003-12-24

Family

ID=29594521

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/002220 Ceased WO2003107563A1 (fr) 2002-06-14 2003-06-11 Reseau d'antennes a recepteur de diversite et procede permettant de selectionner une antenne parmi plusieurs antennes

Country Status (3)

Country Link
AU (1) AU2003240176A1 (fr)
DE (1) DE10226512A1 (fr)
WO (1) WO2003107563A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006060197A1 (fr) * 2004-11-19 2006-06-08 Atc Technologies, Llc Commande de balayage d'antenne electronique utilisant des recepteurs auxiliaires et procedes associes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI124618B (fi) * 2005-03-29 2014-11-14 Perlos Oyj Antennijärjestelmä ja menetelmä antennin yhteydessä sekä antenni
EP2279629A1 (fr) * 2008-04-01 2011-02-02 Audiodent Israel Ltd. Agencement d'antenne pour instrument auditif

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537011A (en) * 1966-11-24 1970-10-27 Antenna switching arrangement for continuous sequential sampling and selection of best signal
US3670275A (en) * 1970-03-20 1972-06-13 Vaisala Oy Electronic and automatic selector device connected to an antenna array formed by two or more antennas
JPS56158541A (en) * 1980-05-13 1981-12-07 Nissan Motor Co Ltd Diversity receiver for car
US4696058A (en) * 1983-12-06 1987-09-22 Matsushita Electric Industrial Co., Ltd. Diversity receiver
EP0452289A1 (fr) * 1990-04-10 1991-10-16 Telefonaktiebolaget L M Ericsson Procédé de sélection de la meilleure antenne de deux ou plusieurs antennes de réception
JPH06165060A (ja) * 1992-11-16 1994-06-10 Yuhshin Co Ltd 自動車用アンテナ自動切換装置
US6029057A (en) * 1996-04-17 2000-02-22 Nokia Mobile Phones Ltd. Diversity method, a radio receiver and a radio system
EP1021000A2 (fr) * 1998-12-17 2000-07-19 FUBA Automotive GmbH & Co. KG Système scanning diversitè multi d'antennes pour véhicules pour diversité de balayage.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537011A (en) * 1966-11-24 1970-10-27 Antenna switching arrangement for continuous sequential sampling and selection of best signal
US3670275A (en) * 1970-03-20 1972-06-13 Vaisala Oy Electronic and automatic selector device connected to an antenna array formed by two or more antennas
JPS56158541A (en) * 1980-05-13 1981-12-07 Nissan Motor Co Ltd Diversity receiver for car
US4696058A (en) * 1983-12-06 1987-09-22 Matsushita Electric Industrial Co., Ltd. Diversity receiver
EP0452289A1 (fr) * 1990-04-10 1991-10-16 Telefonaktiebolaget L M Ericsson Procédé de sélection de la meilleure antenne de deux ou plusieurs antennes de réception
JPH06165060A (ja) * 1992-11-16 1994-06-10 Yuhshin Co Ltd 自動車用アンテナ自動切換装置
US6029057A (en) * 1996-04-17 2000-02-22 Nokia Mobile Phones Ltd. Diversity method, a radio receiver and a radio system
EP1021000A2 (fr) * 1998-12-17 2000-07-19 FUBA Automotive GmbH & Co. KG Système scanning diversitè multi d'antennes pour véhicules pour diversité de balayage.

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 042 (E - 098) 16 March 1982 (1982-03-16) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 488 (E - 1605) 12 September 1994 (1994-09-12) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006060197A1 (fr) * 2004-11-19 2006-06-08 Atc Technologies, Llc Commande de balayage d'antenne electronique utilisant des recepteurs auxiliaires et procedes associes
EP2182652A3 (fr) * 2004-11-19 2011-11-02 ATC Technologies, LLC Commande de balayage d'antenne électronique utilisant des récepteurs auxiliaires et procédés associés

Also Published As

Publication number Publication date
AU2003240176A1 (en) 2003-12-31
DE10226512A1 (de) 2003-12-24

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