Patent ID: 11917532
Assignee: APPLE INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. The apparatus of claim 4, wherein the processor is further configured to cause the wireless device to:
determine a rank supported by a channel state of the wireless link established according to the first RAT; and
determine whether transmitting a negative acknowledgement for the subframe increases downlink block error rate (BLER) for the wireless link established according to the first RAT above a threshold configured to trigger rank reduction to a rank below the rank supported by the channel state of the wireless link established according to the first RAT,
wherein the acknowledgement for the subframe is transmitted further based at least in part on whether transmitting a negative acknowledgement for the subframe increases downlink BLER for the wireless link established according to the first RAT above the threshold configured to trigger rank reduction to a rank below the rank supported by the channel state of the wireless link established according to the first RAT.