Controlling service quality of voice over Internet Protocol...

Details Controlling service quality of voice over Internet Protocol... Controlling service quality of voice over Internet Protocol...

2005-07-29

2011-11-08

Corsaro, Nick (Department: 2617)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S335000, C370S338000, C370S347000, C370S401000, C455S450000, C455S436000, C455S438000, C455S445000

Reexamination Certificate

active

08054826

ABSTRACT:
The present invention provides a method and an apparatus for controlling service quality of data communications in a wireless network in which quality of service control for voice over internet protocol packets is provided on a downlink shared channel. A method is provided for a wireless communications between at least a first and a second service user. The method comprises prioritizing transmission of voice over internet protocol packets for the first and second service users over a shared downlink channel based on a first end-to-end delay that the first service user experiences relative to a second end-to-end delay that the second service user experiences. For example, such a priority adaptation may provide quality of service control for voice over internet protocol over a high-speed downlink packet access channel based on an end-to-end delay that a mobile-to-mobile user may be currently experiencing relative to a mobile-to-land user. In this way, a scheduler at a base station of a communications system may maximize use of voice over internet protocol capacity while maintaining an acceptable level of end-to-end delay for different users of mobile stations.

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