user equipment to be scheduled with uplink radio features, and method for operating user equipment to be scheduled with uplink radio features

摘要

The invention relates to user equipment to be scheduled with uplink radio capabilities. the user equipment receives from a radio base station a first stage uplink resource scheduling message indicating uplink radio resources usable for uplink transmission through an unlicensed cell. the receiver further receives a second stage uplink resource scheduling message that is related to the first stage uplink resource scheduling message. upon receipt of the second stage uplink resource scheduling message, an EU processor determines that an uplink transmission is scheduled in case the first stage uplink resource scheduling message is valid. the first stage uplink resource scheduling message is determined valid based on a determination that a uplink transmission was triggered by another second stage uplink resource scheduling message within a predetermined period of time before receiving the second stage uplink resource scheduling message. which then performs an uplink transmission.