PHYSICAL-LAYER SYSTEM PRIORITIZATION AND COMMUNICATION SESSION MANAGEMENT WITHIN A WIRELESS COMMUNICATIONS SYSTEM

摘要

Embodiments are directed to selecting a physical layer for an access terminal's (AT's) participation in a communication session. In an embodiment, the AT can register its priorities for multiple physical-layer systems as well as contact information by which an application server can contact the AT over each system. The AT selectively updates the system prioritization and/or contact information. When the AT joins or initiates a communication session, the application server supports the AT on a highest-priority system through which the AT can be contacted. The system supporting the AT's session can change upon request by the AT, the initiative of the application server and/or a detected triggering event. In a further embodiment, multiple systems can be used concurrently to support the AT's session, such that the AT can send and/or receive signaling and/or media for at least a portion of the communication session over the multiple systems concurrently.

主权项

1. A method of conducting a communication session in a wireless communications system, comprising:
sending media associated with the communication session to at least one access terminal on a highest-priority system among a previously established system prioritization for a plurality of systems by which the at least one access terminal can be contacted by an application server, each of the plurality of systems associated with a different physical-layer; periodically sending a signaling message on the highest-priority system to the at least one access terminal to confirm that the at least one access terminal can still be reached on the highest-priority system; and selectively updating the system prioritization based at least in part on whether the periodically sending step results in an acknowledgment from the at least one access terminal.