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Soft-windowing channel estimation

  • US 10,454,716 B2
  • Filed: 12/14/2017
  • Issued: 10/22/2019
  • Est. Priority Date: 12/15/2016
  • Status: Active Grant
First Claim
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1. A method for wireless communications by a user equipment (UE), comprising:

  • determining, based on a cyclic prefix (CP) length of a channel, a timing window for sampling reference signals transmitted on the channel, wherein determining the timing window comprises calculating a mean channel energy response (CER) of samples of the channel;

    determining a set of weights to apply to samples obtained within the determined timing window, wherein each weight corresponds to a sample obtained within the determined window, wherein determining the set of weights comprises;

    determining mask values based on the determined timing window;

    multiplying each sample of the channel by a corresponding mask value to determine masked sample values;

    determining a set of threshold values based on the timing window; and

    determining the weight corresponding to each sample based on comparing the corresponding masked sample value to products determined by multiplying each of the set of threshold values by the mean CER; and

    estimating the channel by applying the weights to the corresponding samples.

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