Patent ID: 8964655
Filing Date: 2015-02-24
Classification: H04L,H04W

Abstract:
1. A method for reducing round-trip delay for interactive processes in a communication system that operates based on network-based multi-user packet scheduling, said method comprising: selecting packets associated with interactive processes and not selecting packets associated with non-interactive processes from among a plurality of packets associated with the interactive processes and the non-interactive processes, wherein the selected packets correspond to at least one type of communication for at least one of Push-to-Talk services, ACK/NACK data services, and interactive games; responsive to the selection, estimating delay of the packets associated with the interactive processes of different users during network-based scheduling of user packets in a forward direction; communicating information representative of said estimated delay between a first scheduler for scheduling of user packets in the forward direction and a corresponding second scheduler for scheduling of user packets in a backward direction; and prioritizing, during network-based scheduling of user packets in the backward direction and based on said estimated delay, the packets associated with the interactive processes of those users experiencing a larger delay in the forward direction than a delay experienced by other users in the forward direction, so that the round-trip delay can be reduced, where said information representative of said estimated delay is stored in a shared memory by the first scheduler and accessed from said shared memory by the second scheduler.