Patent ID: 7743165
Filing Date: 2010-06-22
Classification: H04L

Abstract:
1. A method of distributing data in a telecommunication network, said network comprising a central node, a first target node and a second target node, wherein the method comprises: providing a first data set addressed to a said first target node and a second data set addressed to said second target node; applying a compression algorithm to the whole of the first and second data sets, the algorithm recognizing whenever a sequence of data is present in multiple ones of said data sets and associating the sequence to a symbol for use in the compression of each of the multiple data sets, to provide a first file comprising at least a first compressed data set addressed to said first target node and a second compressed data set addressed to said second target node; identifying in said first file at least a first file portion comprising said first compressed data set and a second file portion comprising said second compressed data set; and forwarding said first file portion to said first target node, and forwarding said second file portion to said second target node, wherein said steps of identifying and forwarding are performed in said central node; wherein said network includes an intermediate node connected between said central and first nodes, further comprising the steps of: providing a third data set addressed to a said intermediate node; applying said compression algorithm to a data set including the whole of the first and third data sets, so that the first file includes a first compressed data set addressed to said first target node and additionally a third compressed data set addressed to the intermediate node; identifying in said first file said first file portion, wherein said first file portion comprises said first compressed data set and said third compressed data set; forwarding said first file portion to said intermediate node; identifying at the intermediate node, in said first file portion, the third compressed data set; recovering the third compressed data set at the intermediate node; and forwarding the first compressed data set from the intermediate node to said first target node without the third compressed data set.