Time-Frequency Switch For Accessing A Satellite Transponder
Original Publication Date: 1979-Sep-01
Included in the Prior Art Database: 2005-Feb-20
This article describes a satellite communication system in which a transponder is subdivided into frequency nets and in which each net is accessed by Time Division Multiple Access (TDMA) (Fig. 1). A net is accessed by a single channel per burst launched into a given frequency time slot. All channels in both frequency and time are pooled in a demand assignment pool, thus providing an efficient utilization of the space segment by a network of low cost earth stations. This type of system configuration can be used for both voice and data with a significant savings in the number of modems required.