Method for providing dynamic quality of service for push-to-talk service
First Claim
1. A method comprising:
- initiating, by a push-to-talk (PTT) server, a PTT call session with a PTT client by exchanging control messages over a first bearer having first quality-of-service (QoS) parameters;
establishing, by the PTT server, a second bearer having second QoS parameters different from the first QoS parameters, wherein the establishing the second bearer is performed during at least a portion of the initiating the PTT call session;
exchanging, by the PTT server, media messages with the PTT client over the first bearer before the second bearer is established; and
exchanging, by the PTT server, the media messages with the PTT client over the second bearer in response to completion of the establishing the second bearer.
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Abstract
A system and method for providing dynamic quality-of-service (QoS) for Push-to-Talk (PTT) services in a wireless communications network. One or more servers interface to the wireless communications network to perform the PTT services for mobile units therein. Both the servers and the mobile units communicate with each other using control messages transmitted across bearers in the wireless communications network, and at least one of the servers transmits media streams comprised of voice messages for the PTT services between the mobile units across the bearers in the wireless communications network. At least one of the servers sets up a dedicated bearer in the wireless communications network for at least one of the mobile units, wherein the dedicated bearer has a specified quality of service (QoS) for transmission of at least the media streams to the mobile unit. The dedicated bearer may be static or dynamic.
179 Citations
27 Claims
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1. A method comprising:
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initiating, by a push-to-talk (PTT) server, a PTT call session with a PTT client by exchanging control messages over a first bearer having first quality-of-service (QoS) parameters; establishing, by the PTT server, a second bearer having second QoS parameters different from the first QoS parameters, wherein the establishing the second bearer is performed during at least a portion of the initiating the PTT call session; exchanging, by the PTT server, media messages with the PTT client over the first bearer before the second bearer is established; and exchanging, by the PTT server, the media messages with the PTT client over the second bearer in response to completion of the establishing the second bearer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A push-to-talk (PTT) server comprising:
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a processor; and a computer readable storage medium storing programming for execution by the processor, the programming including instructions for; initiating a PTT call session with a PTT client by exchanging control messages over a first bearer having first quality-of-service (QoS) parameters; establishing a second bearer having second QoS parameters different from the first QoS parameters, wherein the establishing the second bearer is performed during at least a portion of the initiating the PTT call session; exchanging media messages with the PTT client over the first bearer before the second bearer is established; and exchanging the media messages with the PTT client over the second bearer in response to completion of the establishing the second bearer. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification