Patent ID: 8448052

Claim:
A rate matching method for generating an output bitstream of L o symbols from an input bitstream of L i symbols, comprising: selecting bits from an input bitstream using a selection period of a primary indication parameter for selecting at least one bit and a selection period of a secondary indication parameter for canceling the selection using the primary indication parameter or additionally selecting unselected bits; and processing the selected bits according to a rate matching mode so as to generate an output bitstream, wherein the primary indication parameter, prid 1 , is defined as a minimum integer equal or larger than Li/n select , where L i is a number of symbols of the input bitstream, L o is a number of symbols of the output bitstream and n selected is a target bit number, defined as absolute value of L i −L o , wherein the second indication parameter, prid 2 , is defined as temp 1 /temp 2 , where temp 1 is defined as L i −[L i /prid 1 ] and temp 2 is defined as n select −[L i -prid 1 ], wherein [x] is a maximum integer equal or smaller than x, and wherein the primary indication parameter and the secondary indication parameter indicate selection periods, the temp 1 indicates a number of unselected symbols by the primary indication parameter, and the temp 2 indicates a number of symbols to be selected by the secondary indication parameter.