| 摘要 |
Techniques to configure quality of service (QoS) for communication are described. An access terminal configures a first QoS profile prior to a call. This QoS profile is for a set of QoS parameters that provides certain QoS. The access terminal thereafter establishes (e.g., originates or terminates) a call with an access network. If the first QoS profile is appropriate for the call, then QoS is not reconfigured. However, the access terminal may determine that a second QoS profile is to be used for the call, e.g., based on a format or a rate set supported by a remote/other terminal for the call. The access terminal would then configure the second QoS profile during the call. The access terminal may exchange data in accordance with (a) the first QoS profile before the second QoS profile is configured and activated and (b) the second QoS profile after it is configured and activated. |
| 主权项 |
1. A method implemented by an access terminal, the method comprising:
establishing a Internet protocol (IP) flow with a network, wherein the establishing includes assigning a reservation label to the first IP flow; reconfiguring, by negotiation with the network prior to establishing a voice call session, a network resource first instance that achieves a quality of service (QoS) meeting a QoS profile for the IP flow, and is available for subsequent reservation by sending the network a request to turn ON the reservation label; sending an invite message to the terminal, to initiate the voice call session; prior to receiving a response from the terminal to the invite message,
sending to the network the request to turn ON the reservation label, andreceiving from the network a reservation accept indicating network acceptance of the request to turn ON the reservation label; receiving, via the network, the terminal's response to the invite message, wherein the terminal's response identifies a media format supported by the terminal; determining whether the media format identified by the terminal's response is compatible with the QoS profile, and
if the media format identified by the terminal's response is determined compatible with the QoS profile, leaving the QoS profile unchanged,if the media format identified by the terminal's response is determined not compatible with the QoS profile, then
negotiating, with the network, changes in parameters of the QoS profile for compatibility with the media format identified by the terminal's response, andmodifying the network resource instance corresponding to the ON reservation label, if required to meet the changes in parameters of the QoS profile; and establishing the voice call session initiated by the invite message, in association with the ON reservation label. |
