Patent ID: 11956822
Assignee: INTERDIGITAL PATENT HOLDINGS, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A method, comprising:
determining a maximum number of listen before talk (LBT) failures value;
performing a plurality of LBT procedures associated with a first bandwidth part (BWP) of a serving cell;
determining that a number of LBT failures corresponding to the maximum number of LBT failures value has been detected for the first BWP of the serving cell;
selecting a second BWP of the serving cell based on determining that the number of LBT failures corresponding to the maximum number of LBT failures value has been detected for the first BWP of the serving cell, wherein the second BWP of the serving cell is selected based on a channel availability associated with the second BWP;
performing a LBT procedure associated with the second BWP of the serving cell;
determining that the LBT procedure associated with the second BWP of the serving cell is successful; and
performing a random access procedure associated with the second BWP of the serving cell, wherein performing the random access procedure comprises:
selecting a preamble associated with the second BWP; and
transmitting the selected preamble to a base station, wherein an explicit indication is sent via the second BWP that indicates that the number of LBT failures corresponding to the maximum number of LBT failures value has been detected.