发明名称 Data processing
摘要 In a telecommunications network including at least a user device and a network node separated by at least a packet-switched part of the telecommunications network, the user device including a primary jitter buffer having a constant packet play-out rate, the network node including a secondary jitter buffer, incoming packets destined for the user device are received and passed through the secondary jitter buffer of the network node downstream towards the primary jitter buffer of the user device. 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 are monitored. On the basis of the monitoring and one or more known characteristics of the primary jitter buffer, an estimate of a current state of the primary jitter buffer is maintained. Operation of the secondary jitter buffer is dynamically controlled according to the maintained estimate.
申请公布号 US9407386(B2) 申请公布日期 2016.08.02
申请号 US201414194470 申请日期 2014.02.28
申请人 Metaswitch Networks Ltd. 发明人 Tregenza Dancer Colin
分类号 H04L12/26;H04J3/06 主分类号 H04L12/26
代理机构 EIP US LLP 代理人 EIP US LLP
主权项 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.
地址 Enfield GB