WO1995012923A1 - Indoor radio communication system - Google Patents

Indoor radio communication system Download PDF

Info

Publication number
WO1995012923A1
WO1995012923A1 PCT/GB1994/002371 GB9402371W WO9512923A1 WO 1995012923 A1 WO1995012923 A1 WO 1995012923A1 GB 9402371 W GB9402371 W GB 9402371W WO 9512923 A1 WO9512923 A1 WO 9512923A1
Authority
WO
WIPO (PCT)
Prior art keywords
ceiling
base station
radio communication
telephone system
area network
Prior art date
Application number
PCT/GB1994/002371
Other languages
French (fr)
Inventor
Martin William Greenwood
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
Priority to AU79996/94A priority Critical patent/AU7999694A/en
Publication of WO1995012923A1 publication Critical patent/WO1995012923A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/737—Characterised by transmission of electromagnetic waves other than radio waves, e.g. infrared waves

Definitions

  • This invention relates to radio communication apparatus.
  • Cordless telephone and cordless PABX equipment is coming into more widespread use in offices, shops and public places. Such equipment is normally fitted to a wall, and can be unsightly.
  • the present invention offers an innovative approach to such installations, which overcomes the problem of appearance and offers greater flexibility in the location of the equipment.
  • radio communication apparatus is designed to fit into a standard aperture normally used for a ceiling tile.
  • the radio communication apparatus is in the form of a base station for a telephone system or a local area network.
  • a base station for a telephone system or local area network is mounted on a ceiling tile.
  • a ceiling tile incorporates a base station for a telephone system or local area network.
  • a ceiling incorporates a plurality of ceiling tiles, a base station for a telephone system or local area network being located on the upper surface of one of the tiles.
  • the ceiling tile incorporating the base station is preferably dimensioned to match one of the standard sizes of ceiling tile, so that the ceiling tile with base station can easily be fitted into an existing ceiling or alternatively be fitted as original equipment in a new ceiling. It will be appreciated that the invention is most easily used in false (ie suspended) ceilings.
  • the base station may be a base transceiver station (BTS) for a cellular telephone system, or may be a base station for a cordless telephone system.
  • BTS base transceiver station
  • Figure 1 is an underside view of a ceiling provided with a base station according to the invention, and.
  • Figure 2 is a cross-sectional view along the line II-II of Figure 1.
  • the ceiling is a false or suspended ceiling and comprises a plurality of square ceiling tiles one of which (marked 1 in the drawings) is modified by having mounted thereabove a base station 2 for a radio telephone system, as shown in Figure 2.
  • the base station 2 has an H-field flat antenna printed on a printed circuit board, the antenna being called a "patch antenna".
  • the antenna is conveniently coplanar with the ceiling tile and may be mounted on the upper or lower surface thereof.
  • the underside of the ceiling tile matches the remaining ceiling tiles which are supported by the conventional ceiling tile supports 3.
  • the invention can be applied to cordless telephones, low power small size base stations serving cells of small size, called micro BTS, cordless local area networks (LANs), and can be used with radio or infra-red communication links.
  • micro BTS low power small size base stations serving cells of small size
  • LANs cordless local area networks
  • the base station can be positioned in the middle of a large open plan office
  • - cabling for the base station can be run through the roof space defined by the void above the suspended or false ceiling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Radio communication apparatus in the form of a base station, for example for a cellular or cordless telephone system, is designed to fit into a standard aperture normally used for a ceiling tile in a false or suspended ceiling.

Description

INDOOR RADIO COMMUNICATION SYSTEM
This invention relates to radio communication apparatus.
Cordless telephone and cordless PABX equipment is coming into more widespread use in offices, shops and public places. Such equipment is normally fitted to a wall, and can be unsightly. The present invention offers an innovative approach to such installations, which overcomes the problem of appearance and offers greater flexibility in the location of the equipment.
According to one aspect of the invention radio communication apparatus is designed to fit into a standard aperture normally used for a ceiling tile.
Preferably, the radio communication apparatus is in the form of a base station for a telephone system or a local area network.
According to another aspect of the invention a base station for a telephone system or local area network is mounted on a ceiling tile.
According to another aspect a ceiling tile incorporates a base station for a telephone system or local area network. According to a yet further aspect a ceiling incorporates a plurality of ceiling tiles, a base station for a telephone system or local area network being located on the upper surface of one of the tiles.
The ceiling tile incorporating the base station is preferably dimensioned to match one of the standard sizes of ceiling tile, so that the ceiling tile with base station can easily be fitted into an existing ceiling or alternatively be fitted as original equipment in a new ceiling. It will be appreciated that the invention is most easily used in false (ie suspended) ceilings.
The base station may be a base transceiver station (BTS) for a cellular telephone system, or may be a base station for a cordless telephone system.
An embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings in which:
Figure 1 is an underside view of a ceiling provided with a base station according to the invention, and.
Figure 2 is a cross-sectional view along the line II-II of Figure 1.
Referring to Figure 1 , the ceiling is a false or suspended ceiling and comprises a plurality of square ceiling tiles one of which (marked 1 in the drawings) is modified by having mounted thereabove a base station 2 for a radio telephone system, as shown in Figure 2. The base station 2 has an H-field flat antenna printed on a printed circuit board, the antenna being called a "patch antenna". The antenna is conveniently coplanar with the ceiling tile and may be mounted on the upper or lower surface thereof.
The underside of the ceiling tile matches the remaining ceiling tiles which are supported by the conventional ceiling tile supports 3.
The invention can be applied to cordless telephones, low power small size base stations serving cells of small size, called micro BTS, cordless local area networks (LANs), and can be used with radio or infra-red communication links.
The described embodiment has the following advantages
- the base station is out of sight
- the base station can be positioned in the middle of a large open plan office
- the cabling to the base station can be hidden
- easy installation
- cabling for the base station can be run through the roof space defined by the void above the suspended or false ceiling.

Claims

Claims
1. Radio communication apparatus which is designed to fit into a standard aperture normally used for a ceiling tile.
2. Radio communication apparatus according to claim 1 and in the form of a base station for a telephone system or a local area network.
3. A base station which is for a telephone system or local area network and which is mounted on a ceiling tile.
4. A ceiling tile incorporating a base station for a telephone system or local area network.
5. A ceiling incorporating a plurality of ceiling tiles, a base station for a telephone system or local- area network being located on the upper surface of one of the tiles.
6. A ceiling according to claim 5 and in the form of a false or suspended ceiling.
PCT/GB1994/002371 1993-11-06 1994-10-31 Indoor radio communication system WO1995012923A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU79996/94A AU7999694A (en) 1993-11-06 1994-10-31 Indoor radio communication system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9322900.3 1993-11-06
GB9322900A GB2283642A (en) 1993-11-06 1993-11-06 Radio communication apparatus

Publications (1)

Publication Number Publication Date
WO1995012923A1 true WO1995012923A1 (en) 1995-05-11

Family

ID=10744755

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1994/002371 WO1995012923A1 (en) 1993-11-06 1994-10-31 Indoor radio communication system

Country Status (3)

Country Link
AU (1) AU7999694A (en)
GB (1) GB2283642A (en)
WO (1) WO1995012923A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1296408A3 (en) * 1999-08-10 2004-01-02 Armstrong World Industries, Inc. Ceiling tile transmitter and receiver system
US6715246B1 (en) 1999-08-10 2004-04-06 Armstrong World Industries, Inc. Ceiling tile transmitter and receiver system
CA2314664A1 (en) * 1999-08-10 2001-02-10 Armstrong World Industries, Inc. Ceiling tile transmitter and receiver system
US6563465B2 (en) 2001-05-29 2003-05-13 Awi Licensing Company Ceiling tile antenna and method for constructing same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983004462A1 (en) * 1982-06-09 1983-12-22 Western Electric Company, Inc. A cordless key telephone system employing infrared transmission
EP0488824A2 (en) * 1990-11-30 1992-06-03 Motorola, Inc. In-building microwave communication system permits frequency reuse with external point microwave systems

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4928312A (en) * 1988-10-17 1990-05-22 Amel Hill Acoustic transducer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983004462A1 (en) * 1982-06-09 1983-12-22 Western Electric Company, Inc. A cordless key telephone system employing infrared transmission
EP0488824A2 (en) * 1990-11-30 1992-06-03 Motorola, Inc. In-building microwave communication system permits frequency reuse with external point microwave systems

Also Published As

Publication number Publication date
GB9322900D0 (en) 1993-12-22
GB2283642A (en) 1995-05-10
AU7999694A (en) 1995-05-23

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