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

一种用于压缩和解压缩基于文本的报文的装置和方法。在移动设备100和P-CSCF 102中添加TCCB层114、115。在所述发射设备中，调用所述TCCB压缩方法来除去将要发射的报文中所包含的所有冗余的报头信息。当所述TCCB压缩方法检测到对于特定的序列，报头的内容与以前发送或接收的相同，所述TCCB方法就清空所述报头内容。在接收设备中，当所述TCCB层接收到带有空的报头内容的报文的时候，就调用所述TCCB解压缩方法来从它的缓存115、127重新构建所述报头。 An apparatus and method for compressing and compressing text based messages. A TCCB layer 114, 115 is added to a mobile device 100 and P-CSCF 102. 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 115, 127.