Patent ID: 8503405
Filing Date: 2013-08-06
Classification: H04B,H04L,H04W

Abstract:
1. A method for managing latency in a wireless communication system in which a first device establishes a packet-based real-time media communication session with a second device via a packet-switched network, wherein the first device comprises an end-user device operated by a user who will talk in the session, the method comprising: the first device receiving a report specifying a latency characteristic of the second device, wherein the latency characteristic represents at least one of an air interface protocol being used by the second device or a paging slot cycle being used by the second device; based on the latency characteristic specified by the received report, the first device deciding whether to operate (i) in a normal setup mode when establishing the session with the second device or (ii) in an optimistic setup mode when establishing the session with the second device; and the first device operating in the decided mode when establishing the session with the second device, wherein operating in the decided mode comprises sending a session initiation message to request initiation of the session, wherein operating in the normal setup mode comprises waiting to receive an acceptance of the sent session initiation message before alerting the user to begin talking, and wherein operating in the optimistic setup mode comprises alerting the user to begin talking before the first device receives an acceptance of the sent session initiation message, and buffering speech received from the user in response to the alerting, for transmission of the speech once the session is set up.