Patent ID: 9537978
Date: 2017-01-03
CPC Classifications: H04L,H04W,Y02D

Claim:
1. A compression device comprising: an identifier determination circuit configured to determine a plurality of identifier values in a block, the plurality of identifier values comprising a first identifier value identifying a first communication terminal of a network, and a second identifier value identifying a second communication terminal of the network; a differential determination circuit configured to determine a differential value based on a difference between the first identifier value and the second identifier value; and a compressed string generation circuit configured to insert the differential value into a compressed string, wherein the compressed string generation circuit is configured to insert into the compressed string an encode word length field with a value of 7, which indicate that the number of bits required for representing the block is 8, a length field indicating that the length of the compressed string excluding the encode word length field and the length field is 1, and a sole differential value if data is not present in an access point operating in the network for one communication terminal of a plurality of communication terminals, wherein the one communication terminal is identified by one of the plurality of identifier values; and if data is present in the access point for the rest of the plurality of communication terminals identified by the rest of the plurality of identifier values, wherein the sole differential value is determined based on a difference between the one of the plurality of communication terminals and a sum of two factors, wherein the first factor is a product of a page index value and a page length, and the second factor is a product of a block offset value and a block length.