Patent ID: 11909474
Assignee: QUALCOMM INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An apparatus for wireless communications by a user equipment (UE), comprising:
a memory comprising instructions; and
one or more processors configured to execute the instructions and cause the UE to:
detect that a decoding failure of a first multiple input multiple output (MIMO) transmission received on a first number of layers is caused by a rank mismatch, wherein the rank mismatch indicates that the first number of layers is different than a rank number of a current channel;
send, to a network entity, a rank correction request;
combine samples from the first MIMO transmission and a second MIMO transmission received on a second number of layers in response to the rank correction request, to recover data lost due to the decoding failure, wherein the second number of layers comprises a subset of the first number of layers selected based on their associated signal to noise ratio (SNR);
rank the first number of layers based on their associated SNR; and
include information regarding the ranking with the rank correction request.