| 摘要 |
PURPOSE: A method for producing code pair and allocating code according to QLS(Quasi-Large Synchronization) code selection is provided to produce code pair according to the QLS code selection, thereby reducing PAPR(Peak-to-Average Power Ratio), and allocate the QLS code sequentially, thereby increasing the length of EIFW(Effective Interference Free Window) and improving the characteristic of cross-correlation. CONSTITUTION: A representative effective orthogonal code set is selected(60). Thereafter, it is discriminated whether different QLS codes are allocated to I and Q components of the selected effective orthogonal code set. If different QLS codes are allocated to I and Q components, a combination of code pair for minimizing the PAPR is selected. Thereafter, if it is not used below of N/2 among the entire codes N, a sequential QLS code allocation method(1) is applied and if it is used below of N/2 among the entire codes N, a sequential QLS code allocation method(2) is applied(61,62,63,64,65). If different QLS codes are not allocated to I and Q components, a code set is classified on the basis of an interference free window. If it is not used below of N/2 among the entire codes N, a sequential QLS code allocation method(3) is applied and if it is used below of N/2 among the entire codes N, a sequential QLS code allocation method(4) is applied(66,67,68,69). |
