Abstract: A system and method for sending data are disclosed herein. In one embodiment, a method performed by a wireless communication device includes generating, by a wireless communication device, a plurality of packets to be transmitted via a plurality of resource positions in frequency domain and time domain. The method includes transmitting, by the wireless communication device, each of the plurality of packets with information indicative of at least a resource position of another of the plurality of packets.

Abstract: Disclosed are a reference signal processing method and apparatus, a first communication node, and a second communication node. The reference signal processing method may include: creating w sequences, wherein different first communication nodes do not all take a same value of w, and w is a positive integer; generating a reference signal based on the w sequences; and sending the reference signal and a data signal which corresponds to the reference signal.

Abstract: This disclosure relates to methods and devices for enabling access to a cell-free wireless communication network. The cell-free wireless communication network may include a plurality of access points and at least one central processing unit controlling the access points. In one implementation, the method may include obtaining an access assisting signal in an access assisting signal set. The access assisting signal set may include a plurality of access assisting signals that enable a user equipment to initially access to the cell-free wireless communication network. The method may include broadcasting the access assisting signal. The plurality of access points broadcast respective access assisting signals at a same time.

Abstract: Methods, systems, and devices are disclosed for digital wireless communication, and more specifically, for the use of pilot sequences that improves performance of channel estimation. In one exemplary aspect, a method of wireless communication performed by a communication node is disclosed. The method includes determining, using a first index, a mask sequence from a plurality of pre-determined mask sequences, wherein the plurality of pre-determined mask sequences is determined based on permutations of values 1, ?1, i, and ?i or permutations of values 1+i, or 1?i, or ?1+i, or ?1?i; determining a Walsh sequence using a second index, wherein the Wash sequence has a same length as the mask sequence; generating a pilot sequence by combining the mask sequence and the Walsh sequence; and performing a wireless transmission using the pilot sequence.

Abstract: Disclosed are a data processing method and apparatus, a device, a storage medium, and a processor. The data processing method includes: acquiring a first sequence, where the first sequence includes one of: a sequence obtained by processing a first specified element of a second sequence, or a sequence acquired from a first sequence set, and the first sequence set includes one of: a sequence set obtained by processing M sequence sets, or a preset first sequence set; and processing first data by using the first sequence, where M is an integer greater than or equal to 1.

Abstract: Provided are a partial pseudo-randomization processing method, a corresponding apparatus, a device and a storage medium. The method includes performing pseudo-randomization processing on part of N bits b1, b2, . . . , bN to generate new N bits d1, d2, . . . , dN; and encoding the d1, d2, . . . , dN.

Abstract: A method and apparatus for generating and utilizing spreading sequence codebooks for a symbol-level sequence spreading is disclosed. In one embodiment, a method performed by a wireless communication device, comprising: receiving a first number from a wireless communication node; selecting a first spreading sequence codebook from at least one spreading sequence codebook; selecting a first spreading sequence from the first spreading sequence codebook according to the first number; and spreading data symbols according to the first spreading sequence, wherein the at least one spreading sequence codebook each comprises a plurality of spreading sequences configured based on one entry of a first sequence set after cyclic shifting operation, wherein the first sequence set before cyclic shifting operation is configured based on a second sequence set.

Abstract: Provided are a data transmission method and apparatus, a terminal and a base station. The data transmission method includes selecting, by a terminal, reference information from a reference information set corresponding to a preset reference information type; obtaining a first target data packet according to the selected reference information and a data packet to be transmitted; and sending the first target data packet to a base station.

Abstract: The present disclosure provides a data transmission method, which includes that: M conjugate symbol pairs are generated, where M is more than or equal to 1; and the symbol pairs in the conjugate relationship are transmitted. The present disclosure also provides a data transmission device, a storage medium and an electronic device.

Abstract: Methods, systems, and devices for multiple access with interference mitigation are described. A wireless communication method is provided to comprise: generating, from information bits, a modulated signal; spreading the modulated signal using a spreading code to provide a spread data signal; processing the spread data signal through a randomization; and transmitting an orthogonal frequency division multiplexing (OFDM) signal based on an output of the processing.

Abstract: Optimizing the resource configuration or selection for grant-free contention-based non-orthogonal multiple access (NOMA) transmissions is an effective way to increase network capacity and reduce multi-user interference at the user equipment (UE). In some embodiments, a network node may determine the current traffic load, select multiple access (MA) sequences for the UE based on the determination, and transmit this selection to the UE for subsequent transmissions. In other embodiments, the UE may receive a message with an indication of the traffic load being experienced by the base station that the UE is attempting to connect to, and then may randomly select an MA sequence for subsequent transmissions.

Abstract: Provided are a data sending method and apparatus, a data receiving method and apparatus, a data transmission system, and a storage medium. The data sending method includes: a first data stream is acquired, where the first data stream includes multiple coded data symbols; an N-dimensional orthogonal transformation is performed on the first data stream to obtain an orthogonally transformed first data stream, where N?2; a modulation processing is performed on the orthogonally transformed first data stream to obtain a first radio frequency signal; and the first radio frequency signal is sent.

Abstract: Provided are an information transmission method and apparatus, a communication device, a communication node and a computer-readable storage medium. The method includes that: a communication device determines a second signal according to N bits in first information, wherein the second signal includes at least one of a preamble and a Reference Signal (RS), and N is an integer greater than or equal to 1; and the communication device sends a message A including the second signal.

Abstract: Provided are a data transmission method and apparatus, a user equipment, a base station, a communication system and a storage medium. The method includes abiding by a mapping relationship between the resource configuration of a physical uplink shared channel (PUSCH) resource and preamble sequence configuration information according to the resource configuration of the PUSCH resource and determining preamble sequence configuration information corresponding to the resource configuration of the PUSCH resource; mapping a preamble sequence onto a physical random access channel (PRACH) resource according to the preamble sequence configuration information; and sending a message containing the PRACH resource and the PUSCH resource.

Abstract: Disclosed are methods, apparatuses, systems, and computer readable media. In one aspect, a wireless communication method is disclosed. The method includes generating, at a first radio terminal, a signal comprising a pilot signal, wherein the pilot signal includes W pilot sequences, wherein W is an integer, and wherein the W pilot sequences are uncorrelated; and transmitting, from the first radio terminal to a second radio terminal, the signal.

Abstract: In an exemplary embodiment, a network node can receive signals from user devices in a wireless communication network. The network node can combine the signals received at each receive antenna of the network node based on vectors from a pre-defined set of vectors. The network node can also process the combined signals to obtain an estimate of the signals.

Abstract: Techniques are described for a full duplex communication method and apparatus for inter-vehicle communication (V2V). A communication apparatus includes one or more transmit antennas, one or more receive antennas, and a processor. For cases where a single transmit antenna and multiple receive antennas are used, a distance between the transmit and receive antennas is greater than a pre-determined value. Further, the transmit antenna is located on or in a central region of a top surface of the vehicle and the receive antennas are evenly distributed located on the vehicle. The processor configured to generate one or more messages to be transmitted via the transmit antenna, where the one or more messages includes vehicle condition information, operational information about a driver of the vehicle, or information associated with one or more sensors of the vehicle.

Abstract: A data transmission method is provided. The method includes: a transmitter generates a transmission signal on the basis of transmission information and modulates, by means of a carrier modulation, the transmission signal to a target time-frequency resource for transmission.

Abstract: Disclosed are a data processing method and apparatus, a device, a storage medium, and a processor. The data processing method includes: acquiring a first sequence, where the first sequence includes one of: a sequence obtained by processing a first specified element of a second sequence, or a sequence acquired from a first sequence set, and the first sequence set includes one of: a sequence set obtained by processing M sequence sets, or a preset first sequence set; and processing first data by using the first sequence, where M is an integer greater than or equal to 1.

Abstract: Techniques are described for a grant-free transmission. A wireless method includes generating and transmitting the same message via one or more transmission channels. The message includes information indicative of one or more channel indexes associated with the one or more transmission channels, one or more pilot signals associated with the one or more transmission channels, one or more spreading sequences associated with the one or more transmission channels, one or more scrambling sequences associated with the one or more transmission channels, or an interleaving technique associated with the one or more transmission channels.