METHOD AND DEVICE FOR RANDOM ACCESS CHANNEL ZC SEQUENCE GENERATION Russian patent published in 2019 - IPC H04W74/08 

FIELD: wireless communication equipment.

SUBSTANCE: invention relates to a method and a device for generating a random access channel ZC sequence. Method comprises steps of: selecting a sequence number ν shear in which ν ranges from 0 to (n^RA_shiftn^RA_group+̅n^RA_shift-1); and obtaining value C_ν cyclic shift in accordance with sequence number ν shift, wherein C_ν corresponds to formula , where d_offset is a constant integer or equal to 0, and N_CS is the number of cyclic shifts occupied by one user, wherein n^RA_shift, d_start, n^RA_group and ̅n^RA_shift satisfy reduced expressions; generating random access channel ZC sequence in accordance with value C_ν cyclic shift.

EFFECT: avoiding mutual interference between multiple random access sequences UE caused by Doppler frequency shift.

21 cl, 24 dwg