WO1996029836A1 - Station fixe d'un systeme radiotelephonique mobile a caracteristique d'antennes variable - Google Patents

Station fixe d'un systeme radiotelephonique mobile a caracteristique d'antennes variable Download PDF

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Publication number
WO1996029836A1
WO1996029836A1 PCT/DE1996/000376 DE9600376W WO9629836A1 WO 1996029836 A1 WO1996029836 A1 WO 1996029836A1 DE 9600376 W DE9600376 W DE 9600376W WO 9629836 A1 WO9629836 A1 WO 9629836A1
Authority
WO
WIPO (PCT)
Prior art keywords
base station
antenna device
radiation characteristics
antenna
mobile
Prior art date
Application number
PCT/DE1996/000376
Other languages
German (de)
English (en)
Inventor
Klaus-Dieter Pillekamp
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to AU48747/96A priority Critical patent/AU4874796A/en
Priority to EP96904733A priority patent/EP0815699A1/fr
Priority to JP8527961A priority patent/JPH10505213A/ja
Publication of WO1996029836A1 publication Critical patent/WO1996029836A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering

Definitions

  • the invention relates to a fixed station according to the preamble of claim 1.
  • the range in a mobile radio system e.g. A cordless telephone, which consists of a base station and one or more mobile stations, is essentially determined by its transmission power and its receiver sensitivity.
  • the transmission power is usually even in all directions, i.e. radiated at least approximately point symmetrically, on the one hand to be universally applicable in any environment and on the other hand to achieve the same range in every direction.
  • only a fraction of the transmission energy is directed in the direction of the mobile station that is currently in operation, that is to say in the example the handset of the cordless telephone.
  • the vast majority of transmission energy on the other hand, is not used and can even interfere with third-party devices.
  • the range of the radiation is limited by the transmission power, the path loss and the reception power.
  • Track loss is a fixed factor and cannot be reduced.
  • the transmission power cannot be increased arbitrarily.
  • the reception power and thus the range can be achieved by a directional transmission, i.e. This means that the use of a directional antenna, which radiates the available energy in a concentrated direction, increases the use.
  • the use of directional antennas in radio systems for this purpose is generally known.
  • the object of the invention is, by designing the fixed station, to advantageously improve the To create transmission behavior between the fixed station and the mobile stations of a mobile radio system, in particular a cordless telephone.
  • a base station according to the invention is explained below with reference to a block diagram shown in a figure.
  • This base station of a mobile radio system can be, for example, the base station of a cordless telephone working according to the DECT standard.
  • the base station shown has an antenna device 1, which is connected via an antenna switch 2 either to a transmitter 3 or to a receiver 4.
  • the antenna device 1 is designed as a group antenna (array) having a plurality of individual radiators, the radiation characteristics of which can be shaped into a directional beam characteristic. Depending on the connection and disconnection of individual radiators of this group antenna and / or depending on the activation of certain phase relationships between these individual radiators, a suitable directional beam characteristic can be created, which can then be oriented in different directions.
  • the fixed station shown in the figure contains a control unit 5 for setting the radiation characteristics of the antenna device 1.
  • the radiation characteristic of this application which has the shape of a bundled directional beam
  • the antenna device 1 is always adapted to the current location of that mobile station to which the transmitter 3 is switched on at the relevant time or from which the receiver 4 is received at the relevant time when the receiver 4 is switched on.
  • the control data for the setting of the respective radiation characteristics of the antenna device 1 are based on an algorithm from the reception field strength measured in the control unit 5 in a measuring device 6 and / or directly from the received digital data with the aid of a device 7, in which
  • Bit / burst errors are detected, derived.
  • the actual computational evaluation for determining the control data takes place in a central part 8 of the control unit 5 that executes the algorithm.
  • the associated radiation characteristics for 1 to n mobile stations in the form of the control data for the antenna device are in a memory device 9 l cached.
  • two radiation characteristics can be advantageously stored, the difference of which corresponds to only a slight change in the characteristic. This ensures that interruptions in reception due to fading holes in a non-moving mobile station are prevented.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

La caractéristique ciblée de rayonnement du système d'antennes (1) de la station fixe d'un système radiotéléphonique mobile fonctionnant selon un procédé d'accès par multiplex à partage de temps (TDMA) est adaptée à la position du moment de la station mobile se trouvant à l'instant précis en phase de réception ou en phase d'émission. Cette invention s'applique particulièrement bien aux téléphones sans fil fonctionnant selon la norme DECT.
PCT/DE1996/000376 1995-03-20 1996-03-04 Station fixe d'un systeme radiotelephonique mobile a caracteristique d'antennes variable WO1996029836A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU48747/96A AU4874796A (en) 1995-03-20 1996-03-04 Fixed station of a mobile radio-telephone system with changeable aerial characteristic
EP96904733A EP0815699A1 (fr) 1995-03-20 1996-03-04 Station fixe d'un systeme radiotelephonique mobile a caracteristique d'antennes variable
JP8527961A JPH10505213A (ja) 1995-03-20 1996-03-04 可変特性アンテナを備える移動無線固定局

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19510040 1995-03-20
DE19510040.9 1995-03-20

Publications (1)

Publication Number Publication Date
WO1996029836A1 true WO1996029836A1 (fr) 1996-09-26

Family

ID=7757154

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/000376 WO1996029836A1 (fr) 1995-03-20 1996-03-04 Station fixe d'un systeme radiotelephonique mobile a caracteristique d'antennes variable

Country Status (5)

Country Link
EP (1) EP0815699A1 (fr)
JP (1) JPH10505213A (fr)
AU (1) AU4874796A (fr)
CA (1) CA2215788A1 (fr)
WO (1) WO1996029836A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837522A3 (fr) * 1996-10-15 1998-06-03 Nortel Networks Corporation Agencement d'antenne adaptatif pour un système de radiocommunications
EP0837523A3 (fr) * 1996-10-18 1998-06-03 Kabushiki Kaisha Toshiba Antenne adaptative
WO1998033233A1 (fr) * 1997-01-28 1998-07-30 Telefonaktiebolaget Lm Ericsson (Publ) Generateur de faisceau dirige et procede correspondant
DE19724087A1 (de) * 1997-06-07 1998-12-10 Fraunhofer Ges Forschung Sende- und Empfangsgerät für Hochfrequenzstrahlung und Verfahren zur Hochfrequenz-Übertragung
FR2766994A1 (fr) * 1997-08-04 1999-02-05 Samsung Electronics Co Ltd Antenne reseau a phases adaptatives utilisant un bloc de memoire de poids
WO1999022423A1 (fr) * 1997-10-28 1999-05-06 Telefonaktiebolaget Lm Ericsson Antenne a recherche de trajet
US6108533A (en) * 1997-08-22 2000-08-22 Telefonaktiebolaget Lm Ericsson (Publ) Geographical database for radio system
EP0865099A3 (fr) * 1997-02-13 2000-11-08 Kokusai Denshin Denwa Co., Ltd Méthode et dispositif pour commander un réseau d'antennes
WO2002003498A1 (fr) * 2000-06-30 2002-01-10 Nokia Corporation Elargissement automatique du faisceau
AU2003221215B2 (en) * 2002-03-27 2007-04-05 Datang Mobile Communications Equipment Co., Ltd. Method of mobile communication system with smart antenna

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151142A (ja) * 1982-03-04 1983-09-08 Nec Corp 時分割多元接続装置
EP0568507A1 (fr) * 1992-04-29 1993-11-03 Telia Ab Procédé et dispositif pour réduire le "fading" entre une station de base et unités mobiles
WO1994011956A1 (fr) * 1992-11-17 1994-05-26 Southwestern Bell Technology Resources, Inc. Systeme de communication radio mettant en ×uvre une antenne directive a balayage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151142A (ja) * 1982-03-04 1983-09-08 Nec Corp 時分割多元接続装置
EP0568507A1 (fr) * 1992-04-29 1993-11-03 Telia Ab Procédé et dispositif pour réduire le "fading" entre une station de base et unités mobiles
WO1994011956A1 (fr) * 1992-11-17 1994-05-26 Southwestern Bell Technology Resources, Inc. Systeme de communication radio mettant en ×uvre une antenne directive a balayage

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 267 (E - 213) 29 November 1983 (1983-11-29) *
R.ARNOTT ET AL.: "Development of an Adaptive Antenna Demonstrator for DECT", IEE COLLOQUIUM ON 'SMART ANTENNAS' (DIGEST NO.1994/182), LONDON, GB, 9 DEC. 1994, pages 7/1 - 6, XP000577551 *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0837522A3 (fr) * 1996-10-15 1998-06-03 Nortel Networks Corporation Agencement d'antenne adaptatif pour un système de radiocommunications
US5936577A (en) * 1996-10-18 1999-08-10 Kabushiki Kaisha Toshiba Adaptive antenna
EP0837523A3 (fr) * 1996-10-18 1998-06-03 Kabushiki Kaisha Toshiba Antenne adaptative
WO1998033233A1 (fr) * 1997-01-28 1998-07-30 Telefonaktiebolaget Lm Ericsson (Publ) Generateur de faisceau dirige et procede correspondant
AU757906B2 (en) * 1997-01-28 2003-03-13 Telefonaktiebolaget Lm Ericsson (Publ) Directional-beam generative apparatus and associated method
EP0865099A3 (fr) * 1997-02-13 2000-11-08 Kokusai Denshin Denwa Co., Ltd Méthode et dispositif pour commander un réseau d'antennes
DE19724087A1 (de) * 1997-06-07 1998-12-10 Fraunhofer Ges Forschung Sende- und Empfangsgerät für Hochfrequenzstrahlung und Verfahren zur Hochfrequenz-Übertragung
FR2766994A1 (fr) * 1997-08-04 1999-02-05 Samsung Electronics Co Ltd Antenne reseau a phases adaptatives utilisant un bloc de memoire de poids
US6108533A (en) * 1997-08-22 2000-08-22 Telefonaktiebolaget Lm Ericsson (Publ) Geographical database for radio system
WO1999022423A1 (fr) * 1997-10-28 1999-05-06 Telefonaktiebolaget Lm Ericsson Antenne a recherche de trajet
US6288678B1 (en) 1997-10-28 2001-09-11 Telefonaktiebolaget Lm Ericsson (Publ) Path finder antenna
WO2002003498A1 (fr) * 2000-06-30 2002-01-10 Nokia Corporation Elargissement automatique du faisceau
US6822619B2 (en) 2000-06-30 2004-11-23 Nokia Corporation Antenna system
AU2003221215B2 (en) * 2002-03-27 2007-04-05 Datang Mobile Communications Equipment Co., Ltd. Method of mobile communication system with smart antenna

Also Published As

Publication number Publication date
AU4874796A (en) 1996-10-08
EP0815699A1 (fr) 1998-01-07
CA2215788A1 (fr) 1996-09-26
JPH10505213A (ja) 1998-05-19

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