Reference number
ISO 25111:2009
© ISO 2024
International Standard
ISO 25111:2009
Intelligent transport systems — Communications access for land mobiles (CALM) — General requirements for using public networks
Edition 1
2009-11
Preview
недоступно на русском языке
Опубликовано (Версия 1, 2009)
Последний раз этот публикация был пересмотрен в  2015. Поэтому данная версия остается актуальной.

ISO 25111:2009

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Тезис

ISO 25111:2009 specifies general requirements for the provision of ITS services, using the CALM architecture and protocols, via the use of public wireless networks [including cellular telephony and mobile wireless broadband (MWB) systems].

In particular, ISO 25111:2009 specifies protocols and parameters that public wireless networks shall include to support prolonged communication links in ITS environments where heterogeneous handovers or media independent handovers (MIH) are either necessary to maintain the link, or desirable as determined by media selection policies, and such handover is provided by the public wireless network.

The requirements for the use of CALM via public wireless networks where there is no provision for heterogeneous cell/cell handover (i.e. so-called nomadic services) is not the central focus of ISO 25111:2009, but general requirements to enable the use of such systems, within the limits of the range of a single cell, are also provided.

Wherever practicable, ISO 25111:2009 has been developed by reference to suitable extant standards, adopted by selection. Required regional variations are provided.

Specifically, for ISO 25111:2009, extant national and International Standards for public wireless networks are adopted by reference and are not redefined herein.

Application-specific upper layers are not included in ISO 25111:2009, but will be driven by application standards (which might not be technology specific).

Общая информация

  • Текущий статус
     : Опубликовано
    Дата публикации
     : 2009-11
    Этап
    : Рассылка краткого отчета о пересмотре [90.60]
  • Версия
     : 1
  • Технический комитет :
    ISO/TC 204
  • RSS обновления

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