Radio link monitoring in shared spectrum

A wireless transmit/receive unit (WTRU), comprising:

• a processor configured to:
• perform a listen before talk (LBT) procedure associated with a first bandwidth part (BWP) of a serving cell;
• determine a BWP failure associated with the first BWP of the serving cell, wherein the BWP failure is determined based on a number of LBT failures associated with the first BWP of the serving cell;
• perform a LBT procedure associated with a second BWP of the serving cell;
• determine that the LBT procedure associated with the second BWP of the serving cell is successful;
• and
• perform a random access procedure associated with the second BWP of the serving cell.

A method, comprising:

• performing a listen before talk (LBT) procedure associated with a first bandwidth part (BWP) of a serving cell;
• determining a BWP failure associated with the first BWP of the serving cell, wherein the BWP failure is determined based on a number of LBT failures associated with the first BWP of the serving cell;
• performing a LBT procedure associated with a 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.