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IEE Colloquium on Future Mobile Radio Trunking and Data Systems

27 Feb 1991

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  • IEE Colloquium on `Future Mobile Radio Trunking and Data Systems' (Digest No.051)

    Publication Year: 1991
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (24 KB)

    The following topics were dealt with: mobile radio; mobile data systems; digital radio; trunked radio systems; private mobile radio; protocols; road transport informatics; speech coding; and standards View full abstract»

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  • Trunked packet radio: future trends in digital mobile radio

    Publication Year: 1991, Page(s):12/1 - 12/6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (284 KB)

    Achieving optimum performance for the forthcoming generation of digital mobile radio networks will depend to a large extent on the design of robust communication protocols. A multiple access protocol for use on an integrated, trunked multi-channel private mobile radio (PMR) environment is proposed and its packet delay performance evaluated. The authors focus on issues essential for the design of e... View full abstract»

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  • A spectrum efficient combined speech and channel coding method providing high voice quality for land mobile radio systems

    Publication Year: 1991, Page(s):10/1 - 10/6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (268 KB)

    A novel technique which combines a speech waveform encoding process with multi-level modulation to realise a robust, spectrally efficient land mobile radio channel is described. The speech coding method is based upon a variant of adaptive bit allocation sub-band coding in which samples of the most energetic of eleven sub-bands are transmitted as discrete, multi-level symbols, together with some bi... View full abstract»

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  • Digital trunking: air interface issues

    Publication Year: 1991, Page(s):8/1 - 8/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (240 KB)

    Security, improved speech quality and high speed data are major objectives for a digital private mobile radio (DPMR) system, in addition to improved spectrum efficiency. As well as providing these features, there is the need to provide traditional PMR services such as group call, open channel calls and emergency calls. Unless sufficient new spectrum can be made available, there will also be a requ... View full abstract»

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  • European standards activity in trunking and mobile data

    Publication Year: 1991, Page(s):6/1 - 6/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (212 KB)

    In 1988 CEPT initiated studies on the features to be recommended in future trunked mobile radio systems in sub working group RES6. The author briefly discusses the European Telecommunications Standards Institution and then discusses the work of RES6 in more detail. The work undertaken by the three working parties is discussed. These groups are studying the service aspects, spectrum requirements, m... View full abstract»

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  • MPT 1327 standard data message facility

    Publication Year: 1991, Page(s):3/1 - 3/9
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (372 KB)

    The development of the standard data protocols for the UK standard MPT 1327 for trunked private mobile radio will enable radio units to both transmit and receive long data messages in a prescribed manner on data traffic channels allocated by the network. The protocols are designed in accordance with MPT 1327 formats and procedures though there are several new features incorporated into the protoco... View full abstract»

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  • Single sideband transparent tone in band for trunked mobile radio

    Publication Year: 1991, Page(s):9/1 - 910
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (304 KB)

    The use of mobile radio has become more widespread, resulting in increased pressure on the spectrum allocated for use by mobile services. The transition from 25 kHz to 12.5 kHz channel spacing provided a significant increase in the number of available channels and the introduction of trunked radio systems has enabled the available channels to be used by a greater number of users. However, even wit... View full abstract»

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  • European digital trunking: market requirements

    Publication Year: 1991, Page(s):7/1 - 7/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (188 KB)

    As part of the development of the European economy as well as being a major contribution to it, private mobile radio (PMR) is expected to grow very quickly within the next few years. New digital technology combined with trunking techniques will boost the market as they will not only meet new customer requirements but also provide a very efficient solution to the spectrum congestion. The author foc... View full abstract»

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  • A new air-interface protocol for mobile packet data

    Publication Year: 1991, Page(s):4/1 - 410
    Cited by:  Patents (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (480 KB)

    Packet data services will be a vital component of a future digital trunked radio system. The air interface needed for mobile packet data will be very different from one optimised for speech. The author describes a new air-interface for packet data, which includes features specifically incorporated to enable low-cost hand-portable terminals to be manufactured. The protocol is used in the Cognito ne... View full abstract»

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  • Global dedicated data network

    Publication Year: 1991, Page(s):5/1 - 5/4
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (180 KB)

    In the domain of mobile radio, a sector has yet to take off: wide area data communications. Already there are many converging major components such as low cost radio terminals, generalization of computer in professional life including laptops and an increasing demand for mobility. In Europe, several operators are going to open Dedicated Data Networks. Data transmissions cover growing needs of prof... View full abstract»

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  • Experiences with mobile data

    Publication Year: 1991, Page(s):1/1 - 1/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (228 KB)

    Many users of mobile communication systems are dissatisfied. Access to the radio system and traffic congestion are increasing problems. An alternative to using voice only communications is to supplement or replace these systems with mobile data which offers the potential of much greater throughput of messages and more efficient use of radio channels. Early data system developments were thwarted by... View full abstract»

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  • Road transport informatics (RTI) as an application of mobile data

    Publication Year: 1991, Page(s):2/1 - 2/6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (216 KB)

    A current CEC assisted research programme DRIVE (dedicated road infrastructure for vehicle safety in Europe) is investigating methods of reducing congestion, death, injury, and pollution on European roads. The aim is to make more efficient use of existing roads, as opposed to constructing extra roads, as has previously been the approach to road congestion. A major part of such a program will invol... View full abstract»

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