Patent ID: 7796514
Filing Date: 2010-09-14
Classification: H04L,H04W

Abstract:
1. A Traffic Engineering (TE) method for a Long Term Evolution (LTE) multimedia IP network that obviates network over-provisioning by providing Quality of Service (QoS) to traffic classes comprising: acquiring Key Performance Indicators (KPI) and predefined Service Level Specifications (SLSs); partitioning S1/X2 interfaces into a plurality of Ethernet Virtual Connections (EVCs), with each EVC supporting one traffic class; dividing the total capacity of each S1/X2 interface among the classes it supports; constructing a per-class traffic table for each LTE switch-router interface; comparing each LTE switch-router traffic table with a short term traffic forecast table for that LTE switch-router; if the comparison is a good fit, acquiring network S1/X2 link current bandwidth profiles for each EVC and if not a good fit, using smoothing filters to remove transitory peaks in an LTE switch-router's per-class traffic table; for each S1/X2 link EVC, calculating a Committed Information Rate (CIR) bandwidth and a Peak Information Rate (PIR) bandwidth for each traffic class, class aggregate and link aggregate basis; and if the S1/X2 link EVC per class CIR and PIR bandwidths satisfy equipment capacity constrains, installing the S1/X2 link EVC per class CIR and PIR bandwidths in their respective LTE switch-routers via an Element Management System (EMS) as part of the network configuration.