OPTIMIZING MOBILE NETWORK BANDWIDTH

摘要

A gateway turns encrypted PS data traffic on the Iub interface into clear IP packets so that WAN stream de-duplication and other optimization can be performed to eliminate the transfer of repetitive data across the Iub interface, thereby increasing the throughput between the NodeB and the RNC of the WCDMA network. The gateway pulls PS data traffic out from Iub without disturbing the signaling and CS traffic. The bifurcated PS data traffic is redirected to the GTP I/O port of the gateway where the stream de-duplication is applied. Deployment of the gateway is transparent to the WCDMA network. No network reconfiguration is required to deploy the gateway on the Iub interface.

主权项

1. A gateway comprising digital data processors and communication links adapted to provide:
a central module for interfacing with a core network element (RNC); a remote module for interfacing with a remote base station (NodeB); wherein said modules are adapted to provide communication between the core network element and the remote base station, in which the modules are adapted to perform the following for each direction:
detect data and signalling channels;extract data traffic without affecting signalling, and decrypt a portion of the data traffic which had been encrypted;perform conversion of the data traffic to a format suitable for optimization to reduce bandwidth required, perform said optimization, and transmit the optimized data; andreceive optimized data from the other module and re-constitute the original encrypted data channel.