Techniques for Channel Access by a User Device with Uplink (UL) Cancellation in Unlicensed Bands

A wireless device comprising:

• an antenna;
• a radio operably coupled to the antenna;
• and
• a processor operably coupled to the radio;
• wherein the wireless device is configured to:
• transmit, from a second user device, unlicensed frequency transmission capability information;
• receive an uplink transmission time for the second user device based on the unlicensed frequency transmission capability;
• receive, at the second user device, a request to transmit a reservation transmission in an unlicensed frequency band based on a cancellation time capability of a first user device and the uplink transmission time;
• transmit, by the second user device, the reservation transmission in the unlicensed frequency band;
• and
• transmit, by the second user device, a higher priority uplink transmission in the unlicensed frequency band.

An integrated circuit, comprising circuitry configured to cause a wireless device to:

• transmit, from a second user device, unlicensed frequency transmission capability information;
• receive an uplink transmission time for the second user device based on the unlicensed frequency transmission capability;
• receive, at the second user device, a request to transmit a reservation transmission in an unlicensed frequency band based on a cancellation time capability of a first user device and the uplink transmission time;
• transmit, by the second user device, the reservation transmission in the unlicensed frequency band;
• and
• transmit, by the second user device, a higher priority uplink transmission in the unlicensed frequency band.