Cooperative traffic scheduling
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsRui Fan, Ming Min Wang
Life of this patent
Estimating the term…
Abstract
To reduce and/or guarantee the round-trip delay of interactive processes, cooperative scheduling in forward and backward direction is proposed. In practice, a basic idea is to estimate the delay of packets of different users during network-based scheduling of packets in forward direction. During scheduling of packets in backward direction, packets of those users having larger delay in forward direction are given higher priority based on the estimated delay. In this way the total round-trip delay can be reduced and/or even guaranteed. This means that more users will be satisfied and experience faster connections to services.
Claims26
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:
- estimating delay of packets 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, packets 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.
(canceled)
An arrangement for reducing round-trip delay for interactive processes in a communication system that operates based on network-based multi-user packet scheduling, said arrangement comprising:
- means for estimating delay of packets of different users during network-based scheduling of user packets in a forward direction;
- means for 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 the backward direction, and
- means for prioritizing, during network-based scheduling of user packets in the backward direction and based on said estimated delay, packets 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.
(canceled)
A network node having a first scheduler for multi-user packet scheduling in a forward direction and a second scheduler for multi-user packet scheduling in a backward direction, where said network node further comprises:
- means for estimating delay of packets of different users during scheduling of user packets in said forward direction;
- means for communicating information representative of said estimated delay between said first scheduler and said second scheduler to enable cooperative scheduling;
- and
- means for prioritizing, during scheduling of user packets in said backward direction and based on said estimated delay, packets of those users experiencing a larger delay in said forward direction than a delay experienced by other uses in the forward direction, so that round-trip delay can be reduced.
(canceled)
Dependencies are inferred from the claim text.