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US 10,320,598 B2Granted
Data block transmitting method and transmitter
AssigneeLG Electronics Inc.
InventorsJinsoo Choi, Wookbong Lee, Hangyu Cho
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Abstract
A method of transmitting a data block in a wireless WLAN and a device using the same are provided. A transmitter transmits a physical layer protocol data unit (PPDU) that includes a legacy-signal (L-SIG). A guard period (GI) of a first orthogonal frequency division multiplexing (OFDM) symbol that follows the L-SIG is shorter than the GI of a second OFDM symbol that follows the first OFDM symbol.
Claims6
A method for transmitting a data block in a wireless local area network, the method comprising:
- generating, by a first station (STA), a physical layer protocol data unit (PPDU) including a first field and a second field subsequent to the first field,
- wherein a first Fast Fourier Transform (FFT) value applied to the first field is smaller than a second FFT value applied to the second field,
- wherein the second field includes a first orthogonal frequency division multiplexing (OFDM) symbol and a second OFDM symbol subsequent to the first OFDM symbol,
- wherein a binary phase shift keying (BPSK) modulation scheme is used for the first field, the first OFDM symbol and the second OFDM symbol, and
- wherein a first guard interval (GI) of the first OFDM symbol is shorter than a second GI of a second OFDM symbol;
- and
- transmitting, by the first STA, the PPDU to a second STA.
4 more elements
A first station (STA) in a wireless local area network, the first STA comprising:
- a data generator for generating a physical layer protocol data unit (PPDU) including a first field and a second field subsequent to the first field,
- wherein a first Fast Fourier Transform (FFT) value applied to the first field is smaller than a second FFT value applied to the second field,
- wherein the second field includes a first orthogonal frequency division multiplexing (OFDM) symbol and a second OFDM symbol subsequent to the first OFDM symbol,
- wherein a binary phase shift keying (BPSK) modulation scheme is used for the first field, the first OFDM symbol and the second OFDM symbol, and
- wherein a first guard interval (GI) of the first OFDM symbol is shorter than a second GI of a second OFDM symbol;
- and
- a data transmitter for transmitting the PPDU to a second STA.
4 more elements
Dependencies are inferred from the claim text.