FIELD: radio engineering, communication.
SUBSTANCE: device for wireless communication in one aspect. The device comprises a processor configured to generate a packet for transmission via a wireless signal. The packet is generated for transmission in a bandwidth of 1 MHz, using at least one symbol of multiplexing with orthogonal frequency division (OFDM). The device additionally includes a transmitter configured to transmit a packet through a wireless signal having a power spectral density. The power spectral density in the range ±0.45 MHz from the center frequency of a wireless signal is in the first level of power spectral density. The power spectral density of from 0.45 MHz to 0.6 MHz of the center frequency of a wireless signal and from -0.45 MHz to 0.6 MHz of the center frequency of a wireless signal is less than the first level of power spectral density. The spectral power density of from 1 MHz to 0.6 MHz of the center frequency of a wireless signal and from -1 MHz to -0.6 MHz of the center frequency of a wireless signal is less than -20 dBr with respect to the first level of power spectral density. The power spectral density of from 1 MHz to 1.5 MHz of the center frequency of a wireless signal and from -1 MHz to 1.5 MHz of the center frequency of a wireless signal is less than -28 dBr with respect to the first level of power spectral density. The power spectral density for more than ±1.5 MHz of the center frequency of a wireless signal is less than -40 dBr with respect to the first level of power spectral density.
EFFECT: preventing mutual interference between wireless signals transmitted at different frequencies to reduce interference in the system, and increase of the bandwidth in which signals can be transmitted.
14 cl, 10 tbl, 42 dwg
