Study of Frequency Allocation Problems in the Land Mobile Satellite Service

摘要

The market for land mobile satellite services (LMS) in Europe was assessed to evaluate frequency requirements. In the context that the highest traffic prediction for the year 1995 is equivalent to 21,000 erlangs of traffic in the busy hour, it is unlikely that, even with the use of highly sophisticated techniques for frequency reuse, and bandwidth compression, this traffic could be accommodated in less than 140MHz of frequency spectrum (70MHz both up and down). The frequency bands 1515 to 1559MHz and 1646.5 to 1660.5MHz should be shared between the LMS and the aeronautical mobile satellite service, the sharing criteria to be agreed between the parties concerned. The frequency bands 2500 to 2520MHz and 2600 to 2620MHz should be reassigned to include the LMS on a primary basis.