Technologies for Wireless Interconnection of Mobile Networks


TWIN - 6219

Keywords mobile communications, train communications, railways


Start Date: 1-OCT-92 / Duration: 15 months

[ contact / participants ]


Objectives

The TWIN consortium was set up following a public seminar which presented the findings of the ERWIN (5650) exploratory action. ERWIN investigated potential architectures for a multimedia train communication system comprising the ground segment, several types of wireless links between a mobile and the ground, and the onboard segment.

TWIN will concentrate on the wireless segment, specifically on the radio transmission link, and will investigate the interconnection of mobile subnetworks to fixed networks through this transmission medium. The term "mobile subnetwork" designates a mobile platform carrying users of data, voice and possibly video services communicating with the outside world through access points that are concentrated onto a single radio mobile interface node. "Fixed network" means an immobile communication network with multiple access points.

The objective of the project is to study connectionless dynamic TDMA 900 MHz band radio communication which:

TWIN will liaise with other relevant European projects, especially with the UIC (Union Internationale des Chemins de Fer) group and the Euroradio project, on user requirements and safety considerations.

The phase 1 demonstrator will consist of a load simulator and an LLC prototype implementation representing a radio mobile interface node, an analyser for this node, and a simulator representing the fixed base-station.

Exploitation

It is intended that the results of the project will be further developed and tested for conformance with the rugged conditions experienced in operational environments. Potentially, ensuing products could be used on both high- and low-speed trains to support command and control and to provide enhanced passenger services.


CONTACT POINT

Mr P. W. Parkin
British Rail Research
London Road
UK - Derby DE2 8YB
tel: + 44 / 332-264214
fax: + 44 / 332-262231

Participants

COMMUNITY OF EUROPEAN RAILWAYS - B - C
ASCOM-AUTOPHON SA - F - P
THOMSON-CSF - F - P
TRIALOG INFORMATIQUE - F - P
OTE SPA - I - P


TBP synopses home page TBP acronym index TBP number index
All synopses home page all acronyms index all numbers index

TWIN - 6219, December 1993


please address enquiries to the ESPRIT Information Desk

html version of synopsis by Nick Cook