Patent ID: 8144615

Claim:
A communication device to control rate matching between a physical channel and a transport channel, comprising: a parameter calculator to read an input bit string generated in an upper layer through a transport channel, and to calculate a rate matching parameter comprising a first basic variable for the input bit string; an additional parameter generator to calculate an additional parameter reflecting a channel status of the transport channel, and to calculate a second basic variable using the first basic variable and the additional parameter; and a rate matching executioner to execute bit repeating or bit puncturing on the input bit string on the basis of the rate matching parameter and the second basic variable to map the input bit string generated in the upper layer to the physical channel of a Physical Layer, wherein the additional parameter comprises at least one of a bit number variation ΔM i indicating a variation in a number of bits to be subjected to the rate matching in an i-th transport channel, and a variation rate weight α between temporarily stored ΔM i and a bit number variation ΔM i+1 of an (i+1)-th transport channel.