Method for dynamically associating announcement groups with talkgroups in a radio communication system
AssigneeMotorola, Inc.
InventorJanahan Vivekanandan
Life of this patent
Estimating the term…
Abstract
A radio communication system (100) has talkgroups or working groups that intercommunicate with each other on broadcast calls. Multiple working groups are associated with an announcement group. A subscriber unit (112a-f) may monitor talkgroup communications or announcement group communications. When communications to a talkgroup are initiated, a grant message (300) is sent to subscriber units affiliated with the talkgroup. A new grant message (350) is generated for subscriber units affiliated with the announcement group. The new grant message relieves subscriber units from storing an association between talkgroups and announcement groups, thereby allowing the association of announcement groups and talkgroups to be assigned dynamically.
Claims16
A method for alerting a subscriber unit to group communications in a radio communication system, wherein the radio communication system has a first talkgroup and a second talkgroup and the first talkgroup and the second talkgroup are associated with a first announcement group and wherein calls directed to the first talkgroup or the second talkgroup are to be received by subscriber units associated with the first announcement group, the method comprising the steps of:
- A) making a request for a call to a one of the first talkgroup or the second talkgroup;
- B) receiving the request for the call;
- C) issuing a first grant for the request, the first grant identifying the one of the first talkgroup or the second talkgroup;
- and
- D) issuing a second grant for the request, the second grant identifying the first announcement group.
A method for alerting a subscriber unit to group communications in a radio communication system comprising the steps of:
- A) receiving a request for a call to a one of a plurality of talkgroups, wherein each talkgroup of the plurality of talkgroups is associated with an announcement group of a plurality of announcement groups;
- B) issuing a first grant for the request, the first grant identifying the one of the plurality of talkgroups;
- and
- C) issuing a second grant for the request, the second grant identifying a select announcement group associated with the one of the plurality of talkgroups.
Dependencies are inferred from the claim text.