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

Claim 13:
14. An apparatus for wireless communications by a network entity, comprising:
a memory comprising instructions; and
one or more processors configured to execute the instructions and cause the UE to:
send, to a user equipment (UE), a first multiple input multiple output (MIMO) transmission on a first number of layers;
receive, from the UE, a rank correction request indicating a decoding failure of the first MIMO transmission 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; and
send a second MIMO transmission with a second number of layers, using a space-time code (STC), in response to the rank correction request, to the UE 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),
wherein the rank correction request includes information regarding a ranking of the first number of layers based on their associated SNR.