Method of providing emergency alarm support via an alternative radio communication system
First Claim
1. In a communication environment having a subscriber unit operating within a first communication system that provides emergency alarm support, the subscriber unit being within communication range of a second communication system that provides emergency alarm support, the second communication system operating independently of the first communication system, a method comprising the steps of:
- at the subscriber unit;
selecting the second communication system as a target recipient of an emergency alarm call, as a backup to communicating the emergency alarm call to the first communication system;
determining that the second communication system provides support for emergency alarm calls through a guest access mode; and
transmitting a message to the second communication system, including the emergency alarm call, using the guest access mode, and supplementary information provides source identification information for the emergency alarm call;
at the second communication system;
receiving the message from the subscriber unit, including the emergency alarm call in guest access mode, and the supplementary information;
determining source identification information for the emergency alarm call; and
communicating the emergency alarm call to the first communication system based on the source identification information.
1 Assignment
0 Petitions
Accused Products
Abstract
A subscriber unit (127), operating within a first communication system (120) receives emergency alarm support from a second, operationally independent, communication system (140), that provides support through a guest access mode. The subscriber unit (127) transmits a message to the second system (570), the message including the emergency alarm call and supplementary information that identifies the source of the emergency alarm call. The second system (140) receives the message (610), determines source identification information for the emergency alarm call (620), and communicates the emergency alarm call to the first system based on the source identification information (630). Preferably, the subscriber unit (127) maintains an emergency resource list (322) for selecting recipients for handling emergency alarm calls.
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Citations
20 Claims
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1. In a communication environment having a subscriber unit operating within a first communication system that provides emergency alarm support, the subscriber unit being within communication range of a second communication system that provides emergency alarm support, the second communication system operating independently of the first communication system, a method comprising the steps of:
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at the subscriber unit; selecting the second communication system as a target recipient of an emergency alarm call, as a backup to communicating the emergency alarm call to the first communication system; determining that the second communication system provides support for emergency alarm calls through a guest access mode; and transmitting a message to the second communication system, including the emergency alarm call, using the guest access mode, and supplementary information provides source identification information for the emergency alarm call; at the second communication system; receiving the message from the subscriber unit, including the emergency alarm call in guest access mode, and the supplementary information; determining source identification information for the emergency alarm call; and communicating the emergency alarm call to the first communication system based on the source identification information. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of providing emergency alarm call support for a subscriber unit operating within a primary communication system, and having a neighbor communication system, operating independently of the primary communication system, within communication range of the subscriber unit, the method comprising the steps of:
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at the subscriber unit; receiving a request to transmit an emergency alarm call to the primary communication system; initiating a transmission of the emergency alarm call to the primary communication system; when the emergency alarm call to the primary communication system is not successful; selecting the neighbor communication system as a target recipient of the emergency alarm call; and transmitting a message to the neighbor communication system, the message comprising a guest identifier, and supplementary information that identifies the subscriber unit; at the neighbor communication system; receiving the message from the subscriber unit; associating the guest identifier with emergency alarm calls originating from subscriber units operating within the primary communication system; and communicating emergency information to the primary communication system including identification information based on the supplementary information. - View Dependent Claims (9, 10, 11, 12)
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13. In a transceiver operating on a primary communication system, a method of providing emergency alarm support, comprising the steps of:
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identifying a preferred communication resource for handling emergency calls; maintaining a list of available secondary communication resources for handling emergency alarm calls; receiving a request to transmit an emergency alarm call; initiating communication of the emergency alarm call using the preferred communication resource; and when unable to complete the emergency alarm call using the preferred communication resource; (a) selecting a secondary communication resource from the list of available secondary communication resources; and (b) initiating transmission of the emergency alarm call using the secondary communication resource. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification