A PROCEDURE FOR SIGNALING BUSY PERIODS
Original Publication Date: 1992-Aug-01
Included in the Prior Art Database: 2002-Jan-08
In a trunked radio system, a user attempts to initiate a conversation by making a channel request. If a channel is available at each site to be involved in the call, the trunking system assigns channels to the call, and the user is electron- ically notified that he or she may begin the conversation. If enough channels are not available, the user is not&d that he is queued for later service. With current technology, the user is informed that insutlicient channels are available only r&r he or she initiates the call attempt. The invention pro- posed here is a procedure for keeping users informed of current busy periods for their talkgroups. These are periods when insuff%zient channels are available to support a dis- patch call from a talkgroup. Using this new information, users can choose to make calls when they are less likely to be queued. This promotes more efficient use of the trunk- ing system because fewer channel requests are queued, and more calls are made when channels are available.