公开(公告)号：US20200163124A1

公开(公告)日：2020-05-21

申请号：US16633563

申请日：2018-07-20

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Ren DA ,  Bin REN ,  Tony EKPENYONG ,  Zheng ZHAO ,  Fangchen CHENG ,  Tie LI

IPC: H04W74/08

Abstract: A random access method, a base station and a User Equipment (UE) are provided. A random access method applied to a base station side includes: receiving, by using a pre-configured first SubCarrier Spacing (SCS), a first random access preamble message transmitted by a UE when the base station instructs the UE to perform an initial access according to a contention-based random access mechanism; transmitting, by using a predetermined second SCS or a third SCS configured by a network, a first Random Access Response (RAR) message to the UE; receiving, by using a predetermined fourth SCS or a fifth SCS configured by the network, a first scheduling transmission message transmitted by the UE; and transmitting, by using a predetermined sixth SCS or a seventh SCS configured by the network, a first collision resolution message to the UE, to complete the initial access.