Importance

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Abstract

In a system for assigning to given user terminals in a multiple-user DAMA communication system access to time slots of a time frame within which to transmit messages identified in message-access requests from different given user terminals, a plurality of message-access requests from different given user terminals are stored in a memory and then processed to schedule the identified messages for transmission. First the stored requests are processed in accordance with predetermined priority constraints, in accordance with information contained in the message-access requests identifying transmission parameters of the respective identified messages and in accordance with the number of available time slots to thereby select a set of the respective messages for access-assignment to the available time slots; and then the message-access requests for the selected set of messages are processed to assign access to different combinations of the time slots for respectively transmitting the different messages of the selected set of messages. Access-assignment information identifying the time slots for which access has been assigned for the respective given user terminals is transmitted to a predetermined group of given user terminals during a common block of time slots, and the access-assignment information for different predetermined groups of user terminals is transmitted non-simultaneously to the different predetermined groups of user terminals.

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First Claim