| CPC H04B 7/0413 (2013.01) [H04B 17/11 (2015.01); H04B 17/21 (2015.01)] | 20 Claims |
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1. A network entity comprising:
a memory; and
a processor operably coupled to the memory, the processor configured to:
receive, via a first transmit-receive point (TRP) and a second TRP, information associated with a sounding reference signal (SRS) from a user equipment (UE);
estimate a channel based on the information associated with the SRS;
for N iterations:
transmit, via a first channel state information reference signal (CSI-RS) port from a first CSI-RS resource, from the first TRP, a first CSI-RS;
transmit, via a second CSI-RS port from the first CSI-RS resource, from the second TRP, the first CSI-RS with a first controlled phase offset;
receive, from the UE, a first precoding matrix indicator (PMI) report associated with the first CSI-RS including a first measured phase offset between the first CSI-RS port and the second CSI-RS port; and
update the first controlled phase offset, based on the first measured phase offset; and
after the N iterations, based on the first controlled phase offset and the first measured phase offset, determine a first phase mis-match for phase calibration between the first TRP and the second TRP.
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