System and method for providing low overhead floor control in a distributed peer-to-peer communications network
DCFirst Claim
1. A system for providing low overhead floor control in a distributed control two-way radio communications network comprising:
- a plurality of subscriber stations; and
a plurality of peer stations interconnected via an Internet connection using no central control,wherein at least one subscriber station of the plurality of subscriber stations utilizes a floor request during a timed interval for requesting floor control to at least one peer station, andwherein at least one of;
the timed interval is set at approximately twice the expected maximum message delay between a first peer and a second peer,the at least one peer station utilizes a hang time for providing the plurality of subscribers a period to reply to a message sent by the at least one subscriber station without losing floor control, oreach of the plurality of peer stations receive an identical set of floor requests as every other peer within the timed interval.
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Abstract
A system and method for providing low overhead floor control in a distributed control two-way radio communications network (200) including one or more subscriber stations (201,205, 213, 215, 217) and one or more peer stations (203, 207, 211) interconnected via an Internet connection (209) using no central control. A subscriber station (201) utilizes a floor request during a timed floor request window (FRW) for requesting floor control to a given peer station (203). The system and method provide for consistent floor control decisions throughout the communications network (200) which includes a policy to block additional floor requests from local subscriber stations once an initial floor request has been received. This enables each peer to receive an identical set of floor requests as every other peer within the FRW such that every peer will grant the floor to the same subscriber.
13 Citations
30 Claims
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1. A system for providing low overhead floor control in a distributed control two-way radio communications network comprising:
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a plurality of subscriber stations; and a plurality of peer stations interconnected via an Internet connection using no central control, wherein at least one subscriber station of the plurality of subscriber stations utilizes a floor request during a timed interval for requesting floor control to at least one peer station, and wherein at least one of; the timed interval is set at approximately twice the expected maximum message delay between a first peer and a second peer, the at least one peer station utilizes a hang time for providing the plurality of subscribers a period to reply to a message sent by the at least one subscriber station without losing floor control, or each of the plurality of peer stations receive an identical set of floor requests as every other peer within the timed interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for providing access to a floor in a two-way radio distributed control communications network comprising:
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a plurality of two-way radio subscriber stations communicating via a plurality of talk groups; a plurality of peers each communicating via an Internet connection and having no centralized control node a floor request timer associated with each of the plurality of peers; and wherein at least one of the subscriber stations utilizes a floor request window (FRW) for requesting floor control of at least one of the plurality of peers such that an FRW has started floor requests are rejected from the plurality of subscriber stations local to a peer and allowed for subscriber (station non-local to a peer. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A method for providing low overhead floor control in a distributed control two-way radio communications network comprising the steps of:
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providing a plurality of subscriber stations; providing a plurality of peers interconnected via an Internet connection having no central control; utilizing a floor request during a timed interval by at least one subscriber station of the plurality of subscriber stations for requesting floor control to at least one peer; and at least one of; a) setting the timed interval to approximately twice the expected maximum message delay between a first peer and a second peer, b) utilizing a delay time by the at least one peer station for providing the plurality of subscribers a period for reply to a message sent by the at least one subscriber station without losing floor control, c) receiving an identical set of floor requests for each of the plurality of peers as every other peer within the timed interval, or d) utilizing a floor request window (FRW) for the timed interval having a start time and stop time, rejecting floor requests from the plurality of subscriber stations local to a peer once an FRW has started, and allowing floor requests from the plurality of subscriber stations non-local to a peer once an FRW has started. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification