Base site and method for quickly establishing a CDMA dispatch call
First Claim
1. A method for a base site to quickly establish signaling links required for a CDMA dispatch call comprising the steps of:
- establishing an outbound link for the dispatch call;
beginning to transmit the dispatch call via the outbound link;
when no requests to establish an inbound link are received within a period of time subsequent to establishing the outbound link, ceasing to transmit the dispatch call via the outbound link; and
deallocating the outbound link.
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Accused Products
Abstract
To address the need for a base site and method for quickly establishing a CDMA dispatch call, the present invention provides for signaling mobile stations (e.g., 120-123) to inform them of the call and then starting the dispatch call without waiting for the call participants to request their inbound links. The dispatch call is first transmitted by base sites (e.g., 110-112) of all the service coverage areas (e.g., 101-103) that may have call participants, and then discontinued at those base sites where no inbound link requests are received within a period of time. Thus, the dispatch call is established while “call setup” effectively continues.
40 Citations
15 Claims
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1. A method for a base site to quickly establish signaling links required for a CDMA dispatch call comprising the steps of:
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establishing an outbound link for the dispatch call;
beginning to transmit the dispatch call via the outbound link;
when no requests to establish an inbound link are received within a period of time subsequent to establishing the outbound link, ceasing to transmit the dispatch call via the outbound link; and
deallocating the outbound link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A base site comprising:
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a transmitter;
a receiver adapted to receive requests to establish an inbound link; and
a controller, coupled to the transmitter and receiver, adapted to instruct the transmitter to establish an outbound link for a CDMA dispatch call, adapted to begin transmitting the dispatch call via the outbound link, adapted to monitor, via the receiver, an inbound common access channel for requests to establish an inbound link, and further adapted to deallocate the outbound link and to instruct the transmitter to cease transmitting the dispatch call via the outbound link when no requests to establish an inbound link are received by the receiver within a period of time subsequent to establishing the outbound link. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification