Provided are a data modulation method and apparatus, a device, and a storage medium. The data modulation method includes that: a modulation manner is configured, where a constellation point modulation symbol of the modulation manner is formed by combining a first group of constellation point modulation symbols and a second group of constellation point modulation symbols; and data is modulated by using the modulation manner, where the data includes a first data block and a second data block, the first data block is modulated by the first group of constellation point modulation symbols, and the second data block is modulated by the second group of constellation point modulation symbols.

In a wireless communication system, a peak to average power ratio (PAPR) may affect the efficiency of a power amplifier. To reduce a PAPR, a transmitting device may utilize a PAPR reduction precoding that changes a received signal without performance impact so the overall transmit PAPR is reduced. The transmitting device constructs a frequency domain (FD) response to the PAPR reduction precoding, estimates a channel to one or more receiving devices, and applies the PAPR reduction precoding to the estimated channel. The transmitting device constructs a multiple input multiple output (MIMO) precoding matrix considering the FD response of the PAPR reduction precoding and applies the MIMO precoding matrix and the PAPR reduction precoding to an FD signal. A receiving device applies the FD response conjugated to a received FD signal from the transmitting device and processes at least a received reference signal based on the PAPR reduction precoder.

An apparatus and method for orthogonal frequency division multiplexing (OFDM) transmission in a wireless local area network (WLAN) system is disclosed, in which the apparatus for OFDM transmission in the WLAN system includes a signal repetition unit to repeat an encoded signal based on a block unit and output the encoded signal and a repeated signal, an interleaver to interleave the encoded signal and the repeated signal and output an interleaved signal, a modulator to modulate the interleaved signal and output modulated symbols, and a phase rotation unit to phase shift the modulated symbol.

A base station may determine an SS block index associated with an SS block for transmission, and may scramble information based on at least a portion of the determined SS block index. The information may include at least one of a reference signal, data, paging information, control information, broadcast information, or a CRC associated with control information. The base station may transmit the SS block and scrambled information to a UE. A UE may receive an SS block and information scrambled based on at least a portion of an SS block index associated with the SS block. The information may include at least one of a reference signal, data, paging information, control information, broadcast information, or a CRC associated with control information. The UE may descramble the scrambled information based on the at least the portion of the SS block index.

The disclosure pertains to selecting a Transport Block Size (TBS) in a communication system. An aspect is directed to an apparatus for selecting a Transport Block Size (TBS) for a transmitter of a communication system. The communication system supports variable Transmission Time Interval (TTI) lengths regarding the number of symbols to be transmitted in one TTI. The apparatus is configured to receive first information indicative of a TTI length, receive second information indicative of a number of reference symbols included in the TTI, decode, from the first information, the TTI length, and decode, from the second information, the number of reference symbols included in the TTI. The apparatus is further configured to calculate, based on the TTI length and based on the number of reference symbols included in the TTI, a number of data symbols included in the TTI, calculate, based on an allocation bandwidth and based on the number of data symbols included in the TTI, a number of data Resource Elements (REs) in the TTI, and select the TBS from a data structure, based on the calculated number of data REs. Further aspects of the disclosure pertain to a base station, a UE, methods, computer programs, computer-readable recording media and a system.

A transmitter of a DFT-based communications system including an orthogonal precoder for transforming modulated data symbols using a unitary transform, wherein the data 5 symbols are mapped to subcarriers of the transmitter and the computational complexity of the transform is linear with respect to the number of the subcarriers.

Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating a PPDU including a training field. For example, an Enhanced Directional Multi-Gigabit (DMG) (EDMG) wireless communication station may be configured to determine one or more Orthogonal Frequency Division Multiplexing (OFDM) Training (TRN) sequences in a frequency domain based on a count of one or more 2.16 Gigahertz (GHz) channels in a channel bandwidth for transmission of an EDMG PPDU including a TRN field; generate one or more OFDM TRN waveforms in a time domain based on the one or more OFDM TRN sequences, respectively, and based on an OFDM TRN mapping matrix, which is based on a count of the one or more transmit chains; and transmit an OFDM mode transmission of the EDMG PPDU over the channel bandwidth, the OFDM mode transmission comprising transmission of the TRN field based on the one or more OFDM TRN waveforms.

Provided are a data modulation method and apparatus, a device, and a storage medium. The data modulation method comprises: modulating data according to a configured constellation point modulation symbol S(n) set, wherein n is an integer between 0 and N1, and N is an even integer greater than or equal to 4; and transmitting the modulated data on a physical resource.

A base station may determine an SS block index associated with an SS block for transmission, and may scramble information based on at least a portion of the determined SS block index. The information may include at least one of a reference signal, data, paging information, control information, broadcast information, or a CRC associated with control information. The base station may transmit the SS block and scrambled information to a UE. A UE may receive an SS block and information scrambled based on at least a portion of an SS block index associated with the SS block. The information may include at least one of a reference signal, data, paging information, control information, broadcast information, or a CRC associated with control information. The UE may descramble the scrambled information based on the at least the portion of the SS block index.

Some demonstrative embodiments include apparatuses, devices, systems and methods of communicating a PPDU including a training field. For example, an Enhanced Directional Multi-Gigabit (DMG) (EDMG) wireless communication station may be configured to determine one or more Orthogonal Frequency Division Multiplexing (OFDM) Training (TRN) sequences in a frequency domain based on a count of one or more 2.16 Gigahertz (GHz) channels in a channel bandwidth for transmission of an EDMG PPDU including a TRN field; generate one or more OFDM TRN waveforms in a time domain based on the one or more OFDM TRN sequences, respectively, and based on an OFDM TRN mapping matrix, which is based on a count of the one or more transmit chains; and transmit an OFDM mode transmission of the EDMG PPDU over the channel bandwidth, the OFDM mode transmission comprising transmission of the TRN field based on the one or more OFDM TRN waveforms.