Method for automatically revising a wireless communication unit scan list
First Claim
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1. A method comprising the steps of:
- receiving, at a base site, a wireless message from a source communication unit that includes a predetermined trigger component and an identification of a first talk group to which the source communication unit belongs,analyzing the wireless message to identify the predetermined trigger component; and
transmitting a wireless message that includes a second talk group identifier and an instruction to cause recipient communication units to add the second talk group identifier to their scan lists,wherein the step of analyzing the wireless message to identify the predetermined trigger component includes the step of;
when the wireless message includes a data component that includes information identifying a present location for the source communication unit, comparing the present location with predetermined location information.
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Abstract
A method for automatically revising (405) a scan list (201-203) in a wireless communication unit (103-106) employs the provision of a scan list that includes talk group identifiers (202) and reception-priority levels (203) associated the talk groups (202). A wireless message (114) that includes a first talk group identifier (116) and a corresponding reception-priority level (117) instructs the receiving communication untis to revise their scan lists to include the first talk group identifier (116) and the corresponding reception-priority level (117).
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Citations
10 Claims
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1. A method comprising the steps of:
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receiving, at a base site, a wireless message from a source communication unit that includes a predetermined trigger component and an identification of a first talk group to which the source communication unit belongs, analyzing the wireless message to identify the predetermined trigger component; and transmitting a wireless message that includes a second talk group identifier and an instruction to cause recipient communication units to add the second talk group identifier to their scan lists, wherein the step of analyzing the wireless message to identify the predetermined trigger component includes the step of; when the wireless message includes a data component that includes information identifying a present location for the source communication unit, comparing the present location with predetermined location information. - View Dependent Claims (2)
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3. In a wireless dispatch communication system having a base station controller and a trigger detection system coupled to a plurality of base sites facilitating dispatch communication among a plurality of communication units, wherein each communication unit has a scan list defining a set of talk groups with which it can presently communicate, a method of dynamically generating instructions to selected communication units to update their associated scan lists so as to authorize access thereof to a high priority talk group presently not defined in said associated scan lists, comprising the steps of:
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detecting, by the trigger detection system, a trigger signal from a communication unit authorized access to the high priority talk group; identifying, on the basis of at least the trigger signal, the selected communication units to be authorized access to the high priority talk group; and dynamically generating an instruction, by the base station controller, to the selected communication units to update said associated scan lists to add an identifier representative of said high priority talk group. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
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Specification