CPC H04L 25/0204 (2013.01) [H04L 5/0007 (2013.01); H04L 25/022 (2013.01); H04L 25/0228 (2013.01)] | 30 Claims |
1. An apparatus for wireless communication at a user equipment (UE), comprising:
a memory;
a transceiver; and
one or more processors, coupled to the memory and the transceiver, configured to:
receive, from a base station having one or more antenna ports via the transceiver, a communication that includes one or more data streams and a tone reservation signal, wherein a number of the one or more antenna ports is different than a number of the one or more data streams, and wherein the communication indicates that the tone reservation signal is inserted prior to or after a precoding of the one or more data streams; and
perform channel estimation based at least in part on the communication.
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