Telefonaktiebolaget LM Ericsson (publ)
Coordination of scheduled and contention-based uplink transmissions

Abstract:

A radio device performs uplink transmissions on a first carrier. The uplink transmissions on the first carrier require scheduling by a node of a wireless communication network. Further, the radio device performs uplink transmissions on a second carrier. The uplink transmissions on the second carrier require that, by a carrier sense operation, the radio device assesses the second carrier as being unoccupied before proceeding to the uplink transmission on the second carrier. For a certain uplink transmission on the second carrier, the radio device performs the carrier sense operation to assess whether the second carrier is unoccupied and provides an indication of a result of the carrier sense operation to the node which is responsible for the scheduling.