Allowable error performance for a satellite hypothetical reference digital path in the fixed-satellite service operating below 15 GHz when forming part of an international connection in an integrated services digital network
The ITU Radiocommunication Assembly considering: a) that the concept of an integrated services digital network (ISDN) has been defined by the ITU-T; b) that satellites operating in the fixed-satellite service (FSS) will have an important role to play in extending the concept of the ISDN to international connections; c) that satisfactory error performance is an essential feature of any digital transmission system; d) that the error performance of an international digital connection forming part of an ISDN has been specified by the ITU-T in ITU-T Recommendation G.821 at 64 kbit/s; e) that the costs of establishing and maintaining digital communication satellite systems are critically dependent on overall error performance; f) that in defining error performance criteria, it is necessary to take account of all foreseeable error-inducing mechanisms, especially time-varying propagation conditions and interference.