公开(公告)号：US20210378031A1

公开(公告)日：2021-12-02

申请号：US17402302

申请日：2021-08-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaomeng CHAI ,  Yiqun WU ,  Shaoyuan CHEN ,  Yan CHEN

IPC: H04W74/08 ,  H04W72/12 ,  H04W72/04 ,  H04L5/00

Abstract: A random access method, a device, and a system are provided, relate to the field of communications technologies. The method includes: receiving first configuration information, second configuration information, and third configuration information that are sent by a network device, where the first configuration information is used to configure a PRACH time-frequency resource and a preamble sequence set, the second configuration information is used to configure a PUSCH time-frequency resource block corresponding to each PRACH time-frequency resource, and the third configuration information is used to configure a size of each PUSCH time-frequency resource and a correspondence between a preamble sequence and a PUSCH time-frequency resource; and sending a first message including a first preamble sequence and uplink data, where the first preamble sequence is carried on a first PRACH time-frequency resource, and the uplink data is carried on a PUSCH time-frequency resource corresponding to the first PRACH time-frequency resource.