WO1995031070A3 - Point-to-multipoint cellular television transmission system - Google Patents

Point-to-multipoint cellular television transmission system Download PDF

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Publication number
WO1995031070A3
WO1995031070A3 PCT/IB1995/000313 IB9500313W WO9531070A3 WO 1995031070 A3 WO1995031070 A3 WO 1995031070A3 IB 9500313 W IB9500313 W IB 9500313W WO 9531070 A3 WO9531070 A3 WO 9531070A3
Authority
WO
WIPO (PCT)
Prior art keywords
cells
transmitting
directional
television transmission
transmission system
Prior art date
Application number
PCT/IB1995/000313
Other languages
French (fr)
Other versions
WO1995031070A2 (en
Inventor
Leo Kool
Ian Mc Cullocy Clarke
Original Assignee
Philips Electronics Nv
Philips Norden Ab
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 Electronics Nv, Philips Norden Ab filed Critical Philips Electronics Nv
Priority to EP95915297A priority Critical patent/EP0707773A1/en
Priority to AU22229/95A priority patent/AU688890B2/en
Priority to JP7528813A priority patent/JPH08512449A/en
Publication of WO1995031070A2 publication Critical patent/WO1995031070A2/en
Publication of WO1995031070A3 publication Critical patent/WO1995031070A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/67—Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/06—Systems for the simultaneous transmission of one television signal, i.e. both picture and sound, by more than one carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

Known is a low-power point-to-multipoint cellular television transmission system (1) in which transmitter stations (T1, ..., T19), which are located in centres of cells (C1, ..., C19) of the system (1), comprise omni or quadrant-directional transmitting antennas transmitting to receiver stations (R1, ..., R8) located in the cells. The known system operates in the microwave band. Such a system architecture gives either rise to a transmitting antenna which is difficult to manufacture or in itself is rather complex and thus relatively expensive. A system architecture is provided which can be easily implemented and which avoids using omni directional antennas. To this end the transmitter stations (T1, ..., T19) are located at the circumference (CF) of their cells (C1, ..., C19) of the cellular sytem (1), and each transmitter station is provided with a directional antenna (TA1, ..., TA7) covering its cell. Preferably, the transmitting antennas (TA1, ..., TA7) in the system generally transmit along a main geographical axis (ax) of the system (1). Each program to be transmitted can be transmitted via a separate channel and a separate radiator (TA1a, TA1b, ..., TA1i). Then, the channels are completely independent to each other.
PCT/IB1995/000313 1994-05-06 1995-05-03 Point-to-multipoint cellular television transmission system WO1995031070A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP95915297A EP0707773A1 (en) 1994-05-06 1995-05-03 Point-to-multipoint cellular television transmission system
AU22229/95A AU688890B2 (en) 1994-05-06 1995-05-03 Point-to-multipoint cellular television transmission system
JP7528813A JPH08512449A (en) 1994-05-06 1995-05-03 One-point multi-point intracellular television transmission system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP94201249.3 1994-05-06
EP94201249 1994-05-06

Publications (2)

Publication Number Publication Date
WO1995031070A2 WO1995031070A2 (en) 1995-11-16
WO1995031070A3 true WO1995031070A3 (en) 1995-12-21

Family

ID=8216847

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1995/000313 WO1995031070A2 (en) 1994-05-06 1995-05-03 Point-to-multipoint cellular television transmission system

Country Status (5)

Country Link
EP (1) EP0707773A1 (en)
JP (1) JPH08512449A (en)
AU (1) AU688890B2 (en)
CA (1) CA2166557A1 (en)
WO (1) WO1995031070A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5668610A (en) * 1995-12-04 1997-09-16 Cellularvision Technology & Telecommunications, L.P. LMDS transmitter array with polarization-diversity sub-cells
SE9602302L (en) * 1996-06-11 1998-06-02 Eurochannel Ab System for terrestrial satellite for terrestrial local broadcast of TV, teletext and data
US5761605A (en) 1996-10-11 1998-06-02 Northpoint Technology, Ltd. Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
US6356737B1 (en) 1996-12-01 2002-03-12 Claes Lorentz Uno Wellton Persson Terrestrial communication system using satellite transmission techniques
SE523594C2 (en) * 1997-11-14 2004-05-04 Ericsson Telefon Ab L M Data switching device and method for information transmission in a cellular mobile system
AU753882B2 (en) * 1998-02-11 2002-10-31 Richard Freyer Micro wave cellular architecture
AUPP178298A0 (en) * 1998-02-11 1998-03-05 Freyer, Richard Micro wave cellular architecture
FR2776145B1 (en) * 1998-03-13 2000-07-28 Thomson Multimedia Sa SIGNAL TRANSMISSION SYSTEM AND METHOD
SE514624C2 (en) * 1998-12-22 2001-03-26 Ericsson Telefon Ab L M Method and arrangement for establishing a link between two fixed nodes in a mobile radio system using adaptive antennas and a reflective body
JP3838487B2 (en) 2001-08-10 2006-10-25 株式会社エヌ・ティ・ティ・ドコモ Radio communication system, communication terminal apparatus, base station apparatus, and transmission power control method
UA64839C2 (en) * 2001-10-12 2004-03-15 Валерій Іванович Малєв Microwave television and radio information system (mitris)
SI21946A (en) * 2004-11-17 2006-06-30 Boris Sijanec Microwave hybrid duplex distribution communication system
JP4416704B2 (en) * 2005-07-01 2010-02-17 シャープ株式会社 Wireless transmission system
GB2505944A (en) * 2012-09-17 2014-03-19 Canon Kk A video projector, a duster of video projectors and a method for wirelessly transmitting image data within the cluster of video projectors

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249181A (en) * 1979-03-08 1981-02-03 Bell Telephone Laboratories, Incorporated Cellular mobile radiotelephone system using tilted antenna radiation patterns
WO1987007109A1 (en) * 1986-05-14 1987-11-19 Radio Telecom & Technology, Inc. Interactive television and data transmission system
EP0282347A2 (en) * 1987-03-13 1988-09-14 Suite 12 Group Low-power multi-function cellular television system
EP0429200A2 (en) * 1989-11-16 1991-05-29 Gec-Marconi Limited Broadcast networks
WO1992022148A1 (en) * 1991-05-31 1992-12-10 International Mobile Machines Corporation Radio frequency communications system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4249181A (en) * 1979-03-08 1981-02-03 Bell Telephone Laboratories, Incorporated Cellular mobile radiotelephone system using tilted antenna radiation patterns
WO1987007109A1 (en) * 1986-05-14 1987-11-19 Radio Telecom & Technology, Inc. Interactive television and data transmission system
EP0282347A2 (en) * 1987-03-13 1988-09-14 Suite 12 Group Low-power multi-function cellular television system
EP0429200A2 (en) * 1989-11-16 1991-05-29 Gec-Marconi Limited Broadcast networks
WO1992022148A1 (en) * 1991-05-31 1992-12-10 International Mobile Machines Corporation Radio frequency communications system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, Volume VT-35, No. 2, May 1986, LEE, "Elements of Cellular Mobile Radio Systems", page 48 - page 56, figure 6b. *

Also Published As

Publication number Publication date
EP0707773A1 (en) 1996-04-24
AU2222995A (en) 1995-11-29
CA2166557A1 (en) 1995-11-16
WO1995031070A2 (en) 1995-11-16
JPH08512449A (en) 1996-12-24
AU688890B2 (en) 1998-03-19

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