Patent ID: 11903039
Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A random access method, performed by a base station, comprising:
receiving a preamble and an identity from user equipment (UE);
determining a result of initiating random access by the user equipment based on the preamble and the identity; and
transmitting a message to the user equipment based on the result, wherein the message comprises at least one of: a first information unit, a second information unit, a third information unit or a fourth information unit, the first information unit is configured to indicate whether the user equipment has succeeded in random access, the second information unit is configured to indicate whether the user equipment re-initiates random access based on 4 actions of initiating random access, the third information unit is configured to indicate whether the user equipment performs a preset action, and the fourth information unit is configured to indicate a backoff duration of the user equipment, such that the UE performs the actions of:
querying the first information unit in the message;
establishing a communication connection with the base station, in response that a preamble identity comprised in the first information unit is the same as a preamble identity transmitted by the user equipment;
querying the second information unit in the message, in response that the preamble identity comprised in the first information unit is different from the preamble identity transmitted by the user equipment;
re-initiating random access in a preset mode, in response that a preamble identity comprised in the second information unit is the same as the preamble identity transmitted by the user equipment;
querying the third information unit in the message, in response that the preamble identity comprised in the second information unit is different from the preamble identity transmitted by the user equipment;
performing a preset action, in response that a preamble identity comprised in the third information unit is the same as the preamble identity transmitted by the user equipment;
querying the fourth information unit in the message, in response that the preamble identity comprised in the third information unit is different from the preamble identity transmitted by the user equipment; and
re-transmitting the preamble and the identity to the base station based on backoff indicator in the fourth information unit.