In some embodiments, communicating with the first radio node comprises obtaining, from the first radio node, a set of uplink precoding vectors and receive beamforming parameters expected to be used in the set of time resources in which the wireless device is expected to be scheduled for uplink data transmission on the first carrier frequency. Further, communicating with the second radio node that operates on the second carrier frequency in the unlicensed band to obtain the set of time resources in which the wireless device will not be scheduled for downlink reception on the second carrier frequency is further based on the set of uplink precoding vectors and/or receive beamforming parameters expected to be used in the set of time resources in which the wireless device is expected to be scheduled for uplink data transmission on the first carrier frequency.
In some embodiments, communicating with the second radio node that operates on the second carrier frequency in the unlicensed band to obtain the set of time resources in which the wireless device will not be scheduled for downlink reception on the second carrier frequency comprises (a) sending, to the second radio node, the set of time resources in which the wireless device is expected to be scheduled for uplink data transmission on the first carrier frequency and/or the set of time resources in which the wireless device is expected to receive downlink control transmission on the first carrier frequency and (b) receiving, from the second radio node, the set of time resources in which the wireless device will not be scheduled for downlink reception on the second carrier frequency.
In some embodiments, the method further comprises communicating with the first radio node to agree on a set of time resources in which there will be no uplink transmission from the wireless device on the second carrier frequency.