CEPT ERC DEC -1992 ERC Decision of 22 October 1992 on the Frequency Bands to be Designated for the Coordinated Introduction of the Terrestrial Flight Telecommunications System.pdf
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1、EUROPEAN RADIOCOMMUNICATIONS COMMITTEE ERC Decision of 22 October 1992 on the frequency bands to be designated for the coordinated introduction of the Terrestrial Flight Telecommunications System (ERC/DEC/(92)0 1) EUROPEAN CONFERENCE OF POSTAZ, AND TELECOMMUNICATIONS ADMINISTRATIONS Copyright 1993 t
2、he European Conference of Postal and Telecommunications Administrations (CEPT) STD-CEPT ERC/DEC/(92)01-ENGL 1972 I 2326434 0014477 T23 I, EXPLANATORY MEMORANDUM 1. INTRODUCTION Aeronautical Public Correspondence (APC) is a public telecommunications service which enables passengers onboard aircraft t
3、o make telecommunications calls to people on the ground. The service can be provided by satellite or terrestrial based systems. Satellite systems can provide a wide area low capacity service and are ideal for use over oceans or in remote areas. Terrestrial systems have a more limited coverage but ca
4、n support the additional capacity required in high population density areas such as Europe. Provision of a terrestrial based system to service the increasing number of European airline passengers is considered an essential part of the development of the trans-European transport network. A standard f
5、or terrestrial APC, which in Europe is more generaily known as a Terrestrial plight Telecommunications System (TFS), is being produced by the European Telecommunications Standards Institute (ETSI). Other standards associated with the introduction of TFS are being developed by the European Aeronautic
6、al Electronics Committee and the Airlines Electronic Engineering Committee. The relatively large radio coverage area fim an aircraft at normal mishg altitudes and the trans-European nature of the service provided by TFS, makes it essential that TFTS operates on common fiequency bands and that these
7、are recognised within the Radio Regulations of the International Telecommunication Union o. Within Europe, it is the responsibility of the European Radiocommunications Committee (ERC) to designate fiequency bands and to seek international recognition of the use of these bands through the MW. 2. BACK
8、GROUND There is no in-flight public telecommunications facility for passengers on European aircraft routes at present, although INMARSAT offers a satellite based APC service on long haul and oceanic routes and some trials have been undertaken at HF. In the United States, a terrestrial APC system has
9、 been introduced within the 800-900 MHZ band demonstrating the feasibility of terrestrial based APC systems. However, in Europe, the 900 MHz band is used by land mobile and other systems, principally GSM. At the World Administrative Conference for the Mobile Services (WARC MOB-87), spectrum was desi
10、gnated for both satellite and terrestrial APC. However, limitations in the use of this spectrum, both in the bandwidth available and incompatibility with the existing services, prevented the introduction of operational systems. Recognishg the urgent requjrements for APC and the difficulties associat
11、ed with the spectrum allocated by WARC MOB-87, the European Radiocommmunications Committee undertook a study to identify suitable alternative spectrum as part of its preparations for the World Administrative Conference 1992 (WARC 92). In advance of the outcome of WARC 92, the ERC adopted Recommendat
12、ion T/R 42-01 E which designated the following fiequency bands for TFTS: to be made available for TPTS in a phased way (2 x 1 MHz in 1993,2 x 3 MHz in 1994 and the complete band in 1998) in accordance with market demands. This meets fully the traffic demands for TFS as estimated by ETSI up to the ye
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