METHOD FOR OPTIMIZING THE BROADCAST OF PRIORITY GROUP ACTIVE NOTIFICATIONS ON A TRAFFIC CHANNEL
Original Publication Date: 1999-Jun-01
Included in the Prior Art Database: 2002-Aug-19
Public Safety Customers reqti a feature whereby if a radio user is involved in a low priority group call and a higher priority group call becomes active in the system then the radio user in the low priori- ty cdl is notified of the high priority call so he can leave the existing call and participate in the new call. The mechanism for this notification to the radio user is by the radio infrastructure periodically broadcast- ing group active notifications on the traffic channel. However, there is very limited band- width on the tratIic channel to broadcast these noti- fications and hence the frequency of the broadcast notification of a specific group call is low, especially if there are many group calls active in the system.