| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: method comprises steps of: setting ? as a logical index of each Zadoff-Chu sequence, and u as a physical index of said each Zadoff-Chu sequence, wherein 1?u?N-1, 0???N-2, and N is the length of said each Zadoff-Chu sequence; establishing a mapping relationship between the logical index and the physical index:is taken as a symmetry axis, ? is mapped to u via a longitudinal symmetry method, and on the upper side of the symmetry axis, u monotonously decreases or increases, while on the lower side of the symmetry axis, u monotonously increases or decreases, respectively.EFFECT: providing the same coverage of physical random access channels of user devices using different sequences in the same cell, thus flexibility of transmission scheduling in a cell can be improved.10 cl, 4 dwg |
