Patent ID: 6690734
Filing Date: 2004-02-10
Classification: H03M,H04L

Abstract:
A method for puncturing symbols in a communications system, the method comprising:receiving a number of symbols S to be fitted into a frame having a capacity of N symbols, where S is greater than N; determining a number of symbols P to be punctured from among the S received symbols such that remaining unpunctured symbols fit into the frame; computing a plurality of puncture distances D1 through DN based on the number of received symbols S and the number of symbol punctures P; determining a particular number of symbol punctures to be performed for each of the plurality of puncture distances D1 through DN, wherein P1 through PN symbol punctures are to be performed at the puncture distances of D1 through DN, respectively, and wherein a sum of P1 through PN is equal to P; performing P1 through PN symbol punctures at the puncture distances of D1 through DN, respectively, and computing two puncture distances D1 and D2 based on the number of received symbols S and the number of symbol punctures P, wherein the puncture distance D1 is computed as: D1=&LeftFloor;SP&RightFloor;,where &boxur; &boxul; denotes a floor operator.