METHOD AND DEVICE FOR AUTOMATIC CREATION OF A LOCATION-BASED TALK GROUP CALL WITH REDUCED MESSAGING OVERHEAD
First Claim
1. A method of automatic establishment of a location-based talk group call with reduced messaging overhead, in a wireless radio communication system comprising a plurality of subscriber units, the method comprising, responsive to detecting an input requesting that a new location-based talk group call be established:
- determining, by a first one of the plurality of subscriber units, a geographic reference location and generating location data representative of the geographic reference location;
broadcasting, by the first subscriber unit, a location-based talk group call header including the location data and including a location-based talk group call identifier field set to a value that causes other subscriber units in the plurality receiving the call header to receive and output subsequent data associated with the call header responsive to each of the other subscriber units determining that its current geographic location satisfies the location criterion of the call that is at least partly defined by the location data included in the call header; and
subsequently transmitting the data associated with the call header.
1 Assignment
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Accused Products
Abstract
Disclosed is a method of automatic establishment of a location-based talk group call with reduced messaging overhead. The initiating device may be a subscriber unit (SU). The SU determines a geographic reference location and generates location data representative of the location. The SU broadcasts a location-based talk group call header including the location data and including a location-based talk group call identifier field set to cause other SUs receiving the call header to receive and output subsequent data associated with the call header responsive to determining that its current geographic location satisfies the location criterion of the call. The location criterion may be fully determined by the initiating SU and specified in the call header, and may take the form of a specified radius that extends from the geographic reference location represented in the call header.
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Citations
20 Claims
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1. A method of automatic establishment of a location-based talk group call with reduced messaging overhead, in a wireless radio communication system comprising a plurality of subscriber units, the method comprising, responsive to detecting an input requesting that a new location-based talk group call be established:
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determining, by a first one of the plurality of subscriber units, a geographic reference location and generating location data representative of the geographic reference location; broadcasting, by the first subscriber unit, a location-based talk group call header including the location data and including a location-based talk group call identifier field set to a value that causes other subscriber units in the plurality receiving the call header to receive and output subsequent data associated with the call header responsive to each of the other subscriber units determining that its current geographic location satisfies the location criterion of the call that is at least partly defined by the location data included in the call header; and subsequently transmitting the data associated with the call header. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17)
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16. A wireless subscriber unit comprising:
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a memory; a transceiver; and a processor configured to; receive, via the transceiver, a first location-based talk group call header including location data and including a location-based talk group call identifier field set to a value; determine a current geographic location of the wireless subscriber unit; determine whether the current geographic location satisfies the location criterion of the call that is at least partly defined by the location data included in the call header; and if it is determined that the current geographic location does satisfy the location criterion of the call, processing and outputting subsequent data, received via the transceiver, associated with the call header.
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18. A method of automatic establishment of a location-based talk group call with reduced messaging overhead, in a wireless radio communication system comprising a plurality of subscriber units and one or more base stations, the method comprising, responsive to a dispatch console detecting an input requesting that a new location-based talk group call be established:
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determining, by the dispatch console, a geographic reference location and generating location data representative of the geographic reference location; identifying, by the dispatch console, one or more base stations determined to provide coverage within a predefined distance from the reference geographic location; generating, by the dispatch console, a location-based talk group call header including the location data and including a location-based talk group call identifier field set to a value that causes subscriber units receiving the call header to receive and output subsequent data associated with the call header responsive to each of the subscriber units determining that its current geographic location satisfies the location criterion of the call that is at least partly defined by the location data included in the call header; and subsequently causing the location-based talk group header to be broadcast via the identified base stations. - View Dependent Claims (19, 20)
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Specification