Apparatus and method for implementing text based compression using cache and blank approach

The present invention relates generally to the field of communication systems, and more particularly, to text based compression schemes. An apparatus and method for compressing and compressing text based messages. A TCCB layer is added to a mobile device and P-CSCF At the sending device, the TCCB compression method is invoked to remove all redundant header information contained in a message to be transmitted. When the TCCB compression method detects that a header's contents are the same as previously sent or received for a particular sequence, the TCCB method blanks the header contents. At the receiving device, when the TCCB layer receives a message with blank header contents, the TCCB decompression method is invoked to reconstruct the header from its cache