STRATEGIES FOR MANAGEMENT OF CONNECTION-ORIENTED DATA SESSIONS EMPLOYING THE IDLE TIMES IN CELLULAR TELEPHONY

We consider strategies for and performance of a class of connection or iented data session services that might be supported using only the id le times between telephone calls on the channels of a cellular radio s ystem, Two types of service are envisaged: a short transaction service and a suspendable data session service, We give expressions for the m ean active and inactive times for data sessions and show how session a ssignment and displacement strategies can shape the distributions of s ession active and inactive times, We find useful amounts of capacity i n the background of telephony systems even at high load, but in its ra w form the opportunities for data transmission, and the data session s uspension times implied, are rather large-grained for iteractive data sessions, However, enforced time-sharing can improve these statistics for interactive data uses, With prioritized session assignment, a numb er of logical data sessions can be supported providing a range of serv ice characteristics onto which interactive users, mobile Pax, paging, navigation, and fleet tracking applications can be mapped in decreasin g order of required session availability.