Apparatus and method of wireless communication
AssigneeSamsung Electronics Co., Ltd.
InventorsJinmin Kim, Jungwoon Lee, Sunghwan Hyun
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Abstract
A method of wireless communication includes dividing a signal received through an antenna into a plurality of sub-band signals, selecting candidate sub-band signals from among the plurality of sub-band signals, the candidate sub-band signals having a correlation value exceeding a first threshold value, and acquiring preamble information of a physical layer protocol data unit (PPDU) based on a subset of the candidate sub-band signals having a signal-to-noise ratio (SNR) value higher than an SNR threshold value, the SNR threshold value being obtained by subtracting a difference value from a maximum SNR value.
Claims19
A method of wireless communication comprising:
- dividing a signal received through an antenna into a plurality of sub-band signals;
- selecting candidate sub-band signals from among the plurality of sub-band signals, the candidate sub-band signals having a correlation value exceeding a first threshold value;
- and
- acquiring preamble information of a physical layer protocol data unit (PPDU) based on a subset of the candidate sub-band signals having a signal-to-noise ratio (SNR) value higher than an SNR threshold value, the SNR threshold value being obtained by subtracting a difference value from a maximum SNR value,
- wherein the maximum SNR value is a maximum value among SNR values of the candidate sub-band signals.
A method of wireless communication comprising:
- dividing a signal received in a system band into a plurality of sub-band signals;
- selecting candidate sub-band signals based on correlations of the plurality of sub-band signals in a time domain;
- and
- acquiring preamble information of a physical layer protocol data unit (PPDU) based on a valid signal among the candidate sub-band signals, the valid signal having a first signal-to-noise ratio (SNR) value higher than an SNR threshold value, the first SNR value being calculated based on first sub-carriers among a plurality of sub-carriers of signals in a field, the first sub-carriers including valid symbols, and the SNR threshold value being based on a maximum SNR value.
An apparatus of wireless communication comprising:
- processing circuitry configured to:
- determine candidate sub-band signals from among a plurality of sub-band signals included in a system band based on a training field being detected in the candidate sub-band signals,
- determine a first valid signal from among the candidate sub-band signals, the first valid signal having a signal-to-noise ratio (SNR) value within a difference value from a maximum SNR value, the maximum SNR value being highest among SNR values of the candidate sub-band signals, the SNR values of the candidate sub-band signals being calculated by using repeated signal patterns in a time domain of a legacy-long training field (L-LTF) of the candidate sub-band signals,
- decode a preamble of a physical layer protocol data unit (PPDU) to obtain a decoded preamble, the preamble being acquired by combining the first valid signal with a second valid signal from among the candidate sub-band signals when the second valid signal is determined to have an SNR value within the difference value from the maximum SNR value, and
- decode a payload of the PPDU based on the decoded preamble.
Dependencies are inferred from the claim text.