Method and apparatus for updating announcement group information
First Claim
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1. A method comprising the steps of:
- receiving an affiliation request from a subscriber unit while operating in a site trunking mode;
issuing an affiliation response comprising a latest known announcement group to the subscriber unit;
storing an identification of the subscriber unit in a database;
uploading the identification of the subscriber unit to a first device after transitioning from the site trunking mode to a wide area trunking mode;
after the step of uploading, issuing a request for re-affiliation to the subscriber unit;
prior to the step of transmitting, receiving a second affiliation request from the subscriber unit; and
transmitting an updated announcement group to the subscriber unit.
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Abstract
Method and apparatus for updating a subscriber unit with an announcement group identification. A subscriber unit (210) requests affiliation (301) with a talk group (202) and an unknown announcement group identification is issued (315) in response to the request for affiliation. The present invention includes an embodiment where information that identifies which subscriber unit (210) received the unknown announcement group signal is stored (309). An updated announcement signal is subsequently sent to the subscriber unit (210) when a zone controller (114) receives an updated announcement group identification.
7 Citations
13 Claims
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1. A method comprising the steps of:
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receiving an affiliation request from a subscriber unit while operating in a site trunking mode;
issuing an affiliation response comprising a latest known announcement group to the subscriber unit;
storing an identification of the subscriber unit in a database;
uploading the identification of the subscriber unit to a first device after transitioning from the site trunking mode to a wide area trunking mode;
after the step of uploading, issuing a request for re-affiliation to the subscriber unit;
prior to the step of transmitting, receiving a second affiliation request from the subscriber unit; and
transmitting an updated announcement group to the subscriber unit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising the steps of:
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receiving an affiliation request from a subscriber unit while operating in a site trunking mode;
issuing an affiliation response comprising an unknown announcement group to the subscriber unit;
storing an identification of the subscriber unit in a database;
uploading the identification of the subscriber unit to a first device after transitioning from the site trunking mode to a wide area trunking mode;
after the step of uploading, issuing a request for re-affiliation to the subscriber unit;
prior to the step of transmitting, receiving a second affiliation request from the subscriber unit; and
transmitting a known announcement group to the subscriber unit. - View Dependent Claims (9, 10, 11)
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12. A method comprising the steps of:
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receiving an affiliation request for a talkgroup from a subscriber unit;
determining that an announcement group identification for the talkgroup is not available;
sending an unknown announcement group identification to the subscriber unit;
when the announcement group identification for the talkgroup becomes available, sending a request to the subscriber unit to re-request affiliation; and
upon receipt of a second affiliation request, sending an affiliation response with a known announcement group identification to the subscriber unit. - View Dependent Claims (13)
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Specification