Patent ID: 11968726
Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. A device for random access in an unlicensed frequency band, applied to a terminal, the device comprising:
a receiver;
a processor; and
a memory for storing instructions executable by the processor,
wherein the processor is configured to execute the instructions to:
control the receiver to acquire beacon frames from Wireless Local Area Network Access Points (WLAN APs) operating on n random access available frequency bands, wherein a random access available frequency band is a frequency band, in the unlicensed frequency band, available for the terminal to initiate the random access, and n is a positive integer;
select a first random access available frequency band from the n random access available frequency bands based on channel indication information in respective beacon frames, wherein channel indication information in a beacon frame sent by a WLAN AP operating on an i-th random access available frequency band indicates a channel congestion level of the i-th random access available frequency band, and i is a positive integer less than or equal to n;
initiate the random access in the first random access available frequency band;
in response to the terminal failing to initiate the random access in the first random access available frequency band, select a second random access available frequency band from the n random access available frequency bands based on the channel indication information in the respective beacon frames, wherein the second random access available frequency band is different from the first random access available frequency band; and
initiate the random access in the second random access available frequency band.