Method and apparatus for access regulation and system protection of a dispatch system
First Claim
1. A method for providing access in a dispatch system, said dispatch system having a plurality of remote units, at least one base station, a communications manager, and a mobile switching center, each of said remote units capable of wireless communication with said at least one base station, comprising the steps of:
- establishing a communication resource when requested by a first remote unit;
requesting an exclusive system talker privilege by said first remote unit from said communications manager, said exclusive system talker privilege allowing only one of said plurality of remote units to communicate with other remote units at any given time; and
granting said exclusive system talker privilege to said first remote unit.
1 Assignment
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Accused Products
Abstract
A method and apparatus to provide access to a dispatch system is disclosed. A communications manager (40) grants an exclusive system talker privilege to one remote unit (10) in the system at a time. After a remote unit (10) requests and is designated as the exclusive system talker, no other remote unit (20, 22) may transmit for a first pre-determined amount of time. After the first pre-determined time has elapsed, any other remote unit (20, 22) may request the exclusive system talker privilege and become the exclusive system talker. The exclusive system talker privilege is revoked by the communications manager (40) to any remote unit who retains the exclusive system talker privilege for more than a second pre-determined amount of time. The exclusive system talker privilege is also revoked upon the release of a push-to-talk button on a remote unit (10). Furthermore, a base station (44) in communication with a remote unit (10) designated as the exclusive system talker will generate a surrogate relinquishment request to the communications manager (40) if the exclusive system talker travels outside the coverage area of the system, loses power, or is destroyed.
202 Citations
24 Claims
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1. A method for providing access in a dispatch system, said dispatch system having a plurality of remote units, at least one base station, a communications manager, and a mobile switching center, each of said remote units capable of wireless communication with said at least one base station, comprising the steps of:
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establishing a communication resource when requested by a first remote unit; requesting an exclusive system talker privilege by said first remote unit from said communications manager, said exclusive system talker privilege allowing only one of said plurality of remote units to communicate with other remote units at any given time; and granting said exclusive system talker privilege to said first remote unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for providing access in a dispatch system, said dispatch system having a plurality of remote units, at least one base station, a communications manager, and a mobile switching center, each of said remote units capable of wireless communication with said at least one base station, said apparatus comprising:
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means for establishing a communication link between a first remote unit and said communications manager when requested to do so by said first remote unit; means for generating an exclusive system talker privilege request message by a first remote unit, said exclusive system talker privilege allowing only one of said plurality of remote units to transmit at any given time; and means, disposed in said communications manager, for granting or denying said exclusive system talker privilege request to said first remote unit. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification