The author briefly summarizes the difficulty of administering the rapidly evolving technology of private land mobile radio services, draws a distinction between the cellular and private land mobile regulatory and evolutionary environments, and identifies more efficient spectrum utilization as a major challenge for the private land mobile sector. A three-stage approach is described which would allow enhancement of spectrum efficiency in the private land mobile sector. The first two stages would be especially appropriate if an extended delay in implementing digital technologies in that sector is anticipated. The first stage could involve relatively minor reconfigurations of existing hardware and operations. The second stage would require design, construction, and implementation of enhanced channel- and function-trunking in a distributed network environment. It is concluded that the most urgent question which the private land mobile sector must address is whether these changes should be implemented before, during, or after a conversion away from the current underlying analog format to a digital one.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Projecting the technological evolution of the private land mobile radio services


    Additional title:

    Planung der technologischen Entwicklung der privaten beweglichen Funkdienste


    Contributors:


    Publication date :

    1989


    Size :

    6 Seiten, 7 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Personalized Radio Concepts for Land Mobile Satellite Services

    Ernst, Harald / Scalise, Sandro / Harles, Guy et al. | AIAA | 2004


    AIAA-2004-3214 Personalized Radio Concepts for Land Mobile Satellite Services

    Ernst, H. / Scalise, S. / Harles, G. et al. | British Library Conference Proceedings | 2004


    AIAA-2004-3214 Personalized Radio Concepts for Land Mobile Satellite Services

    Ernst, H. / Scalise, S. / Harles, G. et al. | British Library Conference Proceedings | 2004


    IMAGE PROJECTING DEVICE AND IMAGE PROJECTING METHOD

    YAMAMOTO HIDEAKI / OHASHI YOSUKE | European Patent Office | 2025

    Free access