Patent ID: 9407386
Filing Date: 2016-08-02
CPC Classification: H04J,H04L

Claim Text:
1. A method of processing data in a telecommunications network, the telecommunications network comprising at least a user device and a network node separated by at least a packet-switched part of the telecommunications network, the user device having a primary jitter buffer having a constant packet play-out rate, the network node comprising a secondary jitter buffer, the method comprising receiving, at the network node, incoming packets destined for the user device and passing the received packets through the secondary jitter buffer of the network node downstream towards the primary jitter buffer of the user device; monitoring the departure times of packets passing through the secondary jitter buffer of the network node downstream towards the primary jitter buffer of the user device; maintaining an estimate of a current state of the primary jitter buffer based on the monitoring and one or more known characteristics of the primary jitter buffer; dynamically controlling operation of the secondary jitter buffer according to the maintained estimate, wherein the dynamic controlling comprises disabling the secondary jitter buffer until such time that the maintained estimate indicates that the primary jitter buffer is operating at a capacity other than the given nominal capacity.