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ETSI TR 103 442

M00001773

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ETSI TR 103 442 Railways Telecommunications (RT); Shared use of spectrum between Communication Based Train Control (CBTC) and ITS applications

standard by European Telecommunications Standards Institute, 09/01/2016

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The present document has been developed in cooperation with TC ITS in order to present to the Electronic Communications Committee (ECC) of the European Conference of Post and Telecommunications Administrations (CEPT) a common point of view regarding sharing possibilities between CBTC and ITS applications in the 5 875 MHz to 5 925 MHz frequency band.

After having clearly defined CBTC applications, the present document defines first the functional needs of CBTC regarding its communication. From that, technical needs for the communication system are derived, and the scenarios where sharing the spectrum between CBTC application and ITS road applications could be an issue are described.Finally the different technical means of sharing bandwidth are introduced and the next steps including a proposal for short term regulation are defined.

The present document investigates the possibility of shared use of spectrum between CBTC and ITS applications in the5 875 MHz to 5 925 MHz under the assumption that CBTC applications have priority over ITS-G5 applications.