| 摘要 |
A method and device for sequencing the ZC sequences of the RACH is provided, wherein, the method for sequencing the ZC sequences comprises: according to the CM of OPSK, ZC sequences of the RACH are divided into low CM group and high CM group, to make the index of each ZC sequence within the low CM group smaller or larger than the index of each ZC sequence within the high CM group; according to the maximum cell radius or maximum cyclic shift supported by the ZC sequences under a high speed circumstance, the ZC sequences within the low CM group and within the high CM group are respectively divided into S sub-groups using S-1 maximum cyclic shift thresholds; according to the CMs of the ZC sequences, the sequences are sequenced within each sub-group, to make the ZC sequences in adjacent sub-groups within the low CM group and within the high CM group have different sequencing and the ZC sequences in adjacent sub-groups between the low CM group and the high CM group have the same sequencing. |
