WO1996029836A1 - Fixed station of a mobile radio-telephone system with changeable aerial characteristic - Google Patents
Fixed station of a mobile radio-telephone system with changeable aerial characteristic Download PDFInfo
- 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
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.
Abstract
Description
Claims
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 (en) | 1995-03-20 | 1996-03-04 | Fixed station of a mobile radio-telephone system with changeable aerial characteristic |
JP8527961A JPH10505213A (en) | 1995-03-20 | 1996-03-04 | Mobile radio fixed station with variable characteristic antenna |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19510040.9 | 1995-03-20 | ||
DE19510040 | 1995-03-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996029836A1 true WO1996029836A1 (en) | 1996-09-26 |
Family
ID=7757154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1996/000376 WO1996029836A1 (en) | 1995-03-20 | 1996-03-04 | Fixed station of a mobile radio-telephone system with changeable aerial characteristic |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0815699A1 (en) |
JP (1) | JPH10505213A (en) |
AU (1) | AU4874796A (en) |
CA (1) | CA2215788A1 (en) |
WO (1) | WO1996029836A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0837523A2 (en) * | 1996-10-18 | 1998-04-22 | Kabushiki Kaisha Toshiba | Adaptive antenna |
EP0837522A2 (en) * | 1996-10-15 | 1998-04-22 | Nortel Networks Corporation | Adaptive antenna arrangement for a radio communications system |
WO1998033233A1 (en) * | 1997-01-28 | 1998-07-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Directional-beam generative apparatus and associated method |
EP0865099A2 (en) * | 1997-02-13 | 1998-09-16 | Kokusai Denshin Denwa Co., Ltd | Method and apparatus for controlling array antenna |
DE19724087A1 (en) * | 1997-06-07 | 1998-12-10 | Fraunhofer Ges Forschung | Transmitting and receiving device for high-frequency radiation and method for high-frequency transmission |
FR2766994A1 (en) * | 1997-08-04 | 1999-02-05 | Samsung Electronics Co Ltd | ADAPTIVE PHASE NETWORK ANTENNA USING A WEIGHT MEMORY BLOCK |
WO1999022423A1 (en) * | 1997-10-28 | 1999-05-06 | Telefonaktiebolaget Lm Ericsson | Path finder antenna |
US6108533A (en) * | 1997-08-22 | 2000-08-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Geographical database for radio system |
WO2002003498A1 (en) * | 2000-06-30 | 2002-01-10 | 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 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58151142A (en) * | 1982-03-04 | 1983-09-08 | Nec Corp | Time division multiplex connecting device |
EP0568507A1 (en) * | 1992-04-29 | 1993-11-03 | Telia Ab | Method and arrangement for reducing fading between a base station and mobile units |
WO1994011956A1 (en) * | 1992-11-17 | 1994-05-26 | Southwestern Bell Technology Resources, Inc. | Radio communications system using a scanned directional antenna |
-
1996
- 1996-03-04 AU AU48747/96A patent/AU4874796A/en not_active Abandoned
- 1996-03-04 JP JP8527961A patent/JPH10505213A/en active Pending
- 1996-03-04 WO PCT/DE1996/000376 patent/WO1996029836A1/en not_active Application Discontinuation
- 1996-03-04 EP EP96904733A patent/EP0815699A1/en not_active Ceased
- 1996-03-04 CA CA002215788A patent/CA2215788A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58151142A (en) * | 1982-03-04 | 1983-09-08 | Nec Corp | Time division multiplex connecting device |
EP0568507A1 (en) * | 1992-04-29 | 1993-11-03 | Telia Ab | Method and arrangement for reducing fading between a base station and mobile units |
WO1994011956A1 (en) * | 1992-11-17 | 1994-05-26 | Southwestern Bell Technology Resources, Inc. | Radio communications system using a scanned directional antenna |
Non-Patent Citations (2)
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 (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0837522A2 (en) * | 1996-10-15 | 1998-04-22 | Nortel Networks Corporation | Adaptive antenna arrangement for a radio communications system |
EP0837522A3 (en) * | 1996-10-15 | 1998-06-03 | Nortel Networks Corporation | Adaptive antenna arrangement for a radio communications system |
EP0837523A3 (en) * | 1996-10-18 | 1998-06-03 | Kabushiki Kaisha Toshiba | Adaptive antenna |
EP0837523A2 (en) * | 1996-10-18 | 1998-04-22 | Kabushiki Kaisha Toshiba | Adaptive antenna |
US5936577A (en) * | 1996-10-18 | 1999-08-10 | Kabushiki Kaisha Toshiba | Adaptive antenna |
AU757906B2 (en) * | 1997-01-28 | 2003-03-13 | Telefonaktiebolaget Lm Ericsson (Publ) | Directional-beam generative apparatus and associated method |
WO1998033233A1 (en) * | 1997-01-28 | 1998-07-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Directional-beam generative apparatus and associated method |
EP0865099A2 (en) * | 1997-02-13 | 1998-09-16 | Kokusai Denshin Denwa Co., Ltd | Method and apparatus for controlling array antenna |
EP0865099A3 (en) * | 1997-02-13 | 2000-11-08 | Kokusai Denshin Denwa Co., Ltd | Method and apparatus for controlling array antenna |
DE19724087A1 (en) * | 1997-06-07 | 1998-12-10 | Fraunhofer Ges Forschung | Transmitting and receiving device for high-frequency radiation and method for high-frequency transmission |
FR2766994A1 (en) * | 1997-08-04 | 1999-02-05 | Samsung Electronics Co Ltd | ADAPTIVE PHASE NETWORK ANTENNA USING A WEIGHT MEMORY BLOCK |
US6108533A (en) * | 1997-08-22 | 2000-08-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Geographical database for radio system |
WO1999022423A1 (en) * | 1997-10-28 | 1999-05-06 | Telefonaktiebolaget Lm Ericsson | Path finder antenna |
US6288678B1 (en) | 1997-10-28 | 2001-09-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Path finder antenna |
WO2002003498A1 (en) * | 2000-06-30 | 2002-01-10 | Nokia Corporation | Antenna system |
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 |
---|---|
JPH10505213A (en) | 1998-05-19 |
AU4874796A (en) | 1996-10-08 |
CA2215788A1 (en) | 1996-09-26 |
EP0815699A1 (en) | 1998-01-07 |
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