Patent ID: 9674872
Date: 2017-06-06
CPC Classifications: H04J,H04W

Claim:
1. A method for processing very-high-speed random access, comprising: selecting a Zadoff-Chu (ZC) sequence group according to a cell type and a first cyclic shift parameter Ncs, and setting N detection windows for each ZC sequence in the ZC sequence group, wherein N≧5; sending the cell type, a second Ncs, and the ZC sequence group to a user equipment (UE), so that the UE selects a random access sequence from the ZC sequence group; receiving a random access signal sent by the UE, and obtaining the random access sequence from the random access signal; and performing correlation processing on the random access sequence with each ZC sequence in the ZC sequence group, detecting a valid peak value in the N detection windows of each ZC sequence, and determining an estimated value of a round trip delay (RTD) according to the valid peak value.