Meta Platforms Technologies, LLC

Meta Platforms, Inc.

Weizhong Chen

Krishna Srikanth Gomadam

Ahmed Gamal Helmy Mohamed

Colby Scott Boyer

Djordje Tujkovic

A disclosed computer-implemented method may include receiving, as part of a demodulation reference signal (DMRS) channel estimation operation, a frequency-domain channel estimation signal that includes a sequence of DMRS channels. The method may also include generating an augmented DMRS channel sequence that may include generating (1) based on an edge DMRS channel and an additional DMRS channel included in the sequence of DMRS channels, an extended DMRS channel sequence that includes a plurality of extended DMRS channels that extend a frequency range of the sequence of DMRS channels, and (2) based on an interpolation matrix and the extended DMRS channel sequence, an extrapolated DMRS channel sequence that includes extrapolated DMRS channels that further extend the frequency range of the sequence of DMRS channels. The method may also include interpolating a data channel based on the augmented DMRS channel sequence. Various other methods and systems are also disclosed.

Systems and methods for data channel estimation in fifth generation new radio physical uplink shared channels

A disclosed computer-implemented method may include (1) receiving a channel estimation signal comprising a plurality of frequency domain signals, each frequency domain signal corresponding to an antenna in a plurality of antennas, a port in a plurality of ports, and a demodulation reference signal sequence, (2) for each frequency domain signal, (A) converting the frequency domain signal to a time domain signal, and (B) determining a power level of the time domain signal, (3) determining, for each port in the plurality of ports (a) a sum of the power levels of the time domain signals corresponding to the port, each antenna in the plurality of antennas, and the DMRS sequence, and (b) based on the determined sum corresponding to the port, measuring (i) a pre-equalization signal-to-interference-plus noise ratio, and (ii) a power delay profile (PDP). Various other systems and methods are also disclosed.

Growing community of inventors

Georgetown, TX, United States of America

Weizhong Chen