APPARATUS AND METHOD FOR APPLYING SPECIAL SPECTRAL MASKS FOR TRANSMISSION SUB GIGAHERTZ BANDS

摘要

Systems, methods, and devices for wireless communication are provided. In one aspect, an apparatus for wireless communication is provided. The apparatus includes a processor configured to generate a packet for transmission via a wireless signal. The packet is generated for transmission over a bandwidth of 1 MHz using at least one orthogonal frequency-division multiplexing (OFDM) symbol. The apparatus further includes a transmitter configured to transmit the packet via the wireless signal having a power spectral density. The power spectral density within ±0.45 MHz of a center frequency of the wireless signal is at a first power spectral density level. The power spectral density between 0.45 MHz and 0.6 MHz from the center frequency of the wireless signal and between -0.45 MHz and -0.6 MHz from the center frequency of the wireless signal is less than the first power spectral density level. The power spectral density between 0.6 MHz and 1 MHz from the center frequency of the wireless signal and between -0.6 MHz and -1 MHz from the center frequency of the wireless signal is less than -20 dBr with respect to the first power spectral density level. The power spectral density between 1 MHz and 1.5 MHz from the center frequency of the wireless signal and between -1 MHz and -1.5 MHz from the center frequency of the wireless signal is less than -28 dBr with respect to the first power spectral density level. The power spectral density of greater than ±1.5 MHz from the center frequency of the wireless signal is less than -40 dBr with respect to the first power spectral density level.