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US 7,398,096 B2Granted
System and method for delay reduction via automatic target packet transmission
AssigneeMotorola, Inc.
InventorsJohn M. Harris, Ronald T. Crocker, James A. Marocchi
Life of this patent
Estimating the term…
Abstract
A system and method for establishing communication with a target mobile station (312) initiated in part by establishment of a traffic communication channel with a target mobile station (312). Responsive to establishing the traffic communication channel, a message is sent by the target mobile station (312) substantially immediately to a dispatch server (304) via the traffic communication channel. The message comprises information indicating acceptance of a push-to-talk (PTT) request.
Claims5
A mobile station comprising:
- a receiver having an input, the input receiving a push-to-talk (PTT) request;
- a transmitter having an output;
- and
- a controller coupled to the receiver and the transmitter, the controller programmed to determine an establishment of a traffic communication channel completed as a result of receiving the PTT request at the input of the receiver, the controller further programmed to substantially immediately send a short acknowledgment message to a dispatch server on the output of the transmitter after determining the completion of channel establishment and prior to receiving a SIP INVITE message, the short acknowledgment message comprising information indicating an acceptance of the push-to-talk (PTT) request made over the traffic communication channel.
1 more element
A system for exchanging messages between devices comprising:
- a dispatch server arranged and configured to send a PTT request;
- a source mobile station having and input and output and communicatively coupled to the dispatch server, the source mobile sending a PTT request at the output, and configured to receive a talk permit notification from the dispatch server;
- a target mobile station having an input and output and communicatively coupled to the dispatch server, the target mobile station receiving the PTT request at the input and determining an establishment of a traffic channel after receiving the PTT request, the target mobile unit further programmed to substantially immediately send a short acknowledgment message to the dispatch server on the output when the establishment completion is determined and prior to receiving a SIP INVITE message, the short acknowledgment message comprising information indicating an acceptance of the PTT request.
Dependencies are inferred from the claim text.