The present disclosure relates to a mobile terminal, a base station, a method for data transmission/reception by a mobile terminal, and a method for data reception/transmission by a base station. The mobile terminal comprises circuitry which, in operation, receives a parameter defining a configuration for assigning to ports respective resources for carrying reference signals, the resources being grouped in a plurality of code division multiplexing, CDM, groups, and receives control information indicating one of the set of layer-to-port mapping combinations which is to be applied for arranging reference signals on ports of at least one CDM group for data transmission and/or reception, wherein the control information indicates a co-scheduling information for the at least one and/or at least a different CDM group of the plurality of CDM groups for the same data transmission and/or reception.

The present disclosure relates to a mobile terminal, a base station, a method for data transmission/reception by a mobile terminal, and a method for data reception/transmission by a base station. The mobile terminal comprises circuitry which, in operation, receives a parameter defining a configuration for assigning to ports respective resources for carrying reference signals, the resources being grouped in a plurality of code division multiplexing, CDM, groups, and receives control information indicating one of the set of layer-to-port mapping combinations which is to be applied for arranging reference signals on ports of at least one CDM group for data transmission and/or reception, wherein the control information indicates a co-scheduling information for the at least one and/or at least a different CDM group of the plurality of CDM groups for the same data transmission and/or reception.

A user device communicates in a wireless network by encoding a set of data symbols with a set of complex-valued codes to produce a set of subcarrier values. The subcarrier values are modulated onto a set of Orthogonal Frequency Division Multiplexing (OFDM) subcarriers assigned to the user device to produce a time-domain waveform that comprises a superposition of modulated subcarriers, and the time-domain waveform is transmitted in the wireless network. The set of subcarrier values comprises a first polyphase code that encodes a first of the set of data symbols and at least a second polyphase code that encodes at least a second of the set of data symbols. The first polyphase code causes constructive and destructive interference between the modulated subcarriers to produce a first periodic pulse waveform having a peak value centered at a first time in an OFDM symbol interval, and the second polyphase code causes constructive and destructive interference between the modulated subcarriers to produce a second periodic pulse waveform having a peak value centered at a second time in the OFDM symbol interval, wherein the second time is different from the first time.

The present disclosure relates to methods and devices for wireless communication including an apparatus, e.g., a UE and/or base station. The apparatus can determine a first orthogonal matrix and a second orthogonal matrix, the first orthogonal matrix including a size of M×N1 with M×N1 rows and M×N1 columns, the second orthogonal matrix including a size of M×N2 with M×N2 rows and M×N2 columns. The apparatus can also determine a first codebook based on the first orthogonal matrix and a second codebook based on the second orthogonal matrix, the first codebook and the second codebook including a plurality of codepoints. Also, the apparatus can transmit a first signal and a second signal, the first signal including a first codepoint of the plurality of codepoints in the first codebook, the second signal including a second codepoint of the plurality of codepoints in the second codebook.

The present disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE). The present application discloses a method for generating a random access preamble, comprising the following steps of: receiving random access configuration information, the random access configuration information comprising preamble resource pool information, the preamble resource pool information comprising available base sequences; generating M sequences according to a base sequence, the M being greater than 1; and, generating a random access preamble according to the M sequences. The present application further discloses a device for generating a random access preamble, and a method and device for indicating random access configuration information. With the technical solutions disclosed by the present application, high frequency band multi-beam operations in 5G can be adapted, and the performance of the system in the random access process can be improved.

The present disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE). The present application discloses a method for generating a random access preamble, comprising the following steps of: receiving random access configuration information, the random access configuration information comprising preamble resource pool information, the preamble resource pool information comprising available base sequences; generating M sequences according to a base sequence, the M being greater than 1; and, generating a random access preamble according to the M sequences. The present application further discloses a device for generating a random access preamble, and a method and device for indicating random access configuration information. With the technical solutions disclosed by the present application, high frequency band multi-beam operations in 5G can be adapted, and the performance of the system in the random access process can be improved.

Wireless communications systems and methods related user multiplexing with discrete Fourier transform (DFT) precoded frequency interlaces are provided. A first wireless communication device identifies a first block-spreading code from a set of block-spreading codes associated with user multiplexing. The first wireless communication device communicates, with a second wireless communication device using a frequency interlace in a frequency spectrum, a first communication signal including a first block of information symbols spread across a set of resource blocks (RBs) within the frequency interlace based on the first block-spreading code. The first communication signal is generated by block-spreading the first block of information symbols based on the first block-spreading code to produce a first block of spread information symbols, performing a DFT on the first block of spread information symbols, and mapping the first block of spread information symbols to the set of RBs.

Wireless communications systems and methods related user multiplexing with discrete Fourier transform (DFT) precoded frequency interlaces are provided. A first wireless communication device identifies a first block-spreading code from a set of block-spreading codes associated with user multiplexing. The first wireless communication device communicates, with a second wireless communication device using a frequency interlace in a frequency spectrum, a first communication signal including a first block of information symbols spread across a set of resource blocks (RBs) within the frequency interlace based on the first block-spreading code. The first communication signal is generated by block-spreading the first block of information symbols based on the first block-spreading code to produce a first block of spread information symbols, performing a DFT on the first block of spread information symbols, and mapping the first block of spread information symbols to the set of RBs.

A transmitting apparatus is disclosed. The transmitting apparatus includes an encoder to perform channel encoding with respect to bits and generate a codeword, an interleaver to interleave the codeword, and a modulator to map the interleaved codeword onto a non-uniform constellation according to a modulation scheme, and the constellation may include constellation points defined based on various tables according to the modulation scheme.

Methods are described allowing a vector signaling code to encode multi-level data without the significant alphabet size increase known to cause symbol dynamic range compression and thus increased noise susceptibility. By intentionally restricting the number of codewords used, good pin efficiency may be maintained along with improved system signal-to-noise ratio.