Control Channel Scheduling for APCO Phase 2 Air Interface

This paper is part of an ongoing effort for the standardization of a new APCO Project 25 air interface for professional mobile radio. It describes the structure of the control channel for the 2-slot TDMA air interface. It presents the types of signaling messages involved, the structure of the multiframe and the priority scheduling algorithm for signaling messages on the common control channel CCH. The performance of the algorithm is analyzed in terms of signaling message delays