FIELD: radio engineering, communication.
SUBSTANCE: invention discloses steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) at step (ST101), setting a threshold value (Xth(m)) in accordance with an RB number (m) at step (ST103), setting a sequence length (N) corresponding to RB number (m) at step (ST104), assessing whether |r/N-rb/Nb|=Xth(m) is satisfied at step (ST106), including a plurality of Zadoff-Chu sequences with a sequence number (r) and a sequence length (N) in a sequence group (rb) at step (ST107) if the assessment is positive, and allocating the sequence group (rb) to the same cell at step (ST112).
EFFECT: reduced correlation between different sequence groups.
25 cl, 26 dwg
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