Abstract: A data transmission method, a data transmission apparatus, and a data transmission device are provided, where the method on the terminal side includes: obtaining, by the terminal, an ACK/NACK sequence to be fed back; selecting, by the terminal, a machine learning model applied to the ACK/NACK sequence; compressing, by the terminal, the ACK/NACK sequence through the machine learning model to obtain an indication sequence; and transmitting, by the terminal, the indication sequence to the network device.

Abstract: A method and apparatus for transmitting a reference signal and a communication system. The reference signal transmission method includes: a transmitter end generates one or more signals corresponding to the same transport block, the one or more signals including a data channel and a reference signal; and the transmitter end transmits the one or more signals in one or more time-domain resource segments, positions of reference signals being determined based on the one or more time-domain resource segments. The terminal equipment and the network device may be able to determine the positions of the reference signals in an actual repetition according to time-domain resource segments occupied by the actual repetition.

Abstract: A beam failure recovery method and device and a communication system. The device includes: a receiver configured to, after a period of time upon the terminal equipment receive a beam failure recovery (BFR) response and before activation or reconfiguration signaling, monitor and/or receive a downlink signal in a first cell of the terminal equipment according to an antenna quasi-co-located (QCL) parameter identical to a selected reference signal (q_new) or a reference signal (q_new) indicated by a higher layer.

Abstract: A signal reception or transmission method and apparatus and a communication system. The signal reception or transmission method includes: a terminal equipment receives downlink control information, the number of bits of at least one of fields of the downlink control information being less than the number of bits of a corresponding field of regular downlink control information; and the terminal equipment receives or transmits a signal scheduled by the downlink control information according to spatial direction indication of the downlink control information. According to this disclosure, the terminal equipment and the network device may receive or transmit a corresponding signal by using accurate power and spatial direction.

Abstract: Methods and apparatuses for transmitting and receiving downlink control information and a communication system. The apparatus for transmitting downlink control information (DCI) includes: a first transmitter configured to transmit to a terminal equipment first DCI indicating an interrupted first time-frequency resource used for transmitting uplink data, the first DCI at least comprising a first field indicating a position of the first time-frequency resource.

Abstract: An acknowledgement information feedback apparatus, method and a communication system. The method includes: generating an acknowledgement response vector according to whether data transmitted by a plurality of UEs based on contention are correctly demodulated; generating a measurement vector according to a predetermined compressed sensing measurement matrix and the generated acknowledgement response vector; and broadcasting the measurement vector to the plurality of UEs. The UE recovers the acknowledgement response vector according to a compressed sensing measurement matrix and the measurement vector, and determines whether the transmitted data are correctly demodulated according to the recovered acknowledgement response vector. Hence, it is not only applicable to contention-based data transmission scenarios, but also has relatively low signaling overhead and reliable performance.

Abstract: An acknowledgement information feedback apparatus, method and a communication system. The method includes: generating an acknowledgement response vector according to whether data transmitted by a plurality of UEs based on contention are correctly demodulated; generating a measurement vector according to a predetermined compressed sensing measurement matrix and the generated acknowledgement response vector; and broadcasting the measurement vector to the plurality of UEs. The UE recovers the acknowledgement response vector according to a compressed sensing measurement matrix and the measurement vector, and determines whether the transmitted data are correctly demodulated according to the recovered acknowledgement response vector. Hence, it is not only applicable to contention-based data transmission scenarios, but also has relatively low signaling overhead and reliable performance.

Abstract: An information transmission method, apparatus and communication system suitable for nonorthogonal multiple access. The method includes: modulating data to be transmitted into multiple constellation symbols; rotating the multiple constellation symbols by a first predetermined angle respectively to obtain multiple first symbols; performing real part and imaginary part interleaving on the multiple first symbols to obtain multiple second symbols; rotating the multiple second symbols by a second predetermined angle respectively to obtain multiple third symbols; performing real part and imaginary part interleaving on the multiple third symbols to obtain multiple fourth symbols; and mapping the multiple fourth symbols onto multiple resource elements and transmitting information. Hence, higher diversity gains can be obtained, system performance can further be improved, and more UEs can be multiplexed.

Abstract: An apparatus and method for random access and data transmission and a communication system. The method includes: generating data information used for both random access and data transmission by a UE, the data information including a UE ID, data to be transmitted and a pilot signal; selecting one or more resource block for transmitting the data information from predetermined resources; and mapping the data information onto the resource blocks and transmitting the data information. Hence, random access and data transmission can be achieved in one step, which can both lower signaling overhead and increase the number of accessed UEs.

Abstract: A codebook based channel information feedback method, device and system are provided in the present invention. The codebook based channel information feedback method includes: measuring, by a terminal in a communication system, a parameter of a downlink channel between the terminal and a base station of the communication system; selecting a plurality of precoding matrixes from a precoding codebook by using the parameter of the downlink channel, wherein a plurality of the precoding matrixes can be used by both of single-user multi-input multi-output (MIMO) transport mode and multi-user MIMO transport mode, and the precoding codebook is an aggregation of precoding matrixes; and feeding back a first information for indicating a plurality of the precoding matrixes to the base station.

Abstract: The transmission method includes: performing first-time series-parallel conversion on modulation symbols, and allocating the data to different subcarriers, by a sender side; performing second-time series-parallel conversion on the data allocated to each subcarrier, modulating the parallel data to Slepian signals orthogonal to each other; summing up the data modulated to different Slepian signals; further modulating the data to a subcarrier; and summing up the data in all subcarriers to form transmission signals. The demodulation method includes: calculating a pseudo-inverse of a matrix formed by subcarrier signals of a sender side by a receiver side; performing subcarrier demodulation on reception signals by using columns of the calculated pseudo-inverse matrix; and performing matching filtering demodulation on signals in each subcarrier by using Slepian signals orthogonal to each other to obtain estimation values of modulation symbols of the sender side.

Abstract: A codebook based channel information feedback method, device and system are provided in the present invention. The codebook based channel information feedback method includes: measuring, by a terminal in a communication system, a parameter of a downlink channel between the terminal and a base station of the communication system; selecting a plurality of precoding matrixes from a precoding codebook by using the parameter of the downlink channel, wherein a plurality of the precoding matrixes can be used by both of single-user multi-input multi-output (MIMO) transport mode and multi-user MIMO transport mode, and the precoding codebook is an aggregation of precoding matrixes; and feeding back a first information for indicating a plurality of the precoding matrixes to the base station.

Abstract: The transmission method includes: performing first-time series-parallel conversion on modulation symbols, and allocating the data to different subcarriers, by a sender side; performing second-time series-parallel conversion on the data allocated to each subcarrier, modulating the parallel data to Slepian signals orthogonal to each other; summing up the data modulated to different Slepian signals; further modulating the data to a subcarrier; and summing up the data in all subcarriers to form transmission signals. The demodulation method includes: calculating a pseudo-inverse of a matrix formed by subcarrier signals of a sender side by a receiver side; performing subcarrier demodulation on reception signals by using columns of the calculated pseudo-inverse matrix; and performing matching filtering demodulation on signals in each subcarrier by using Slepian signals orthogonal to each other to obtain estimation values of modulation symbols of the sender side.

Abstract: A codebook based channel information feedback method, device and system are provided in the present invention. The codebook based channel information feedback method includes: measuring, by a terminal in a communication system, a parameter of a downlink channel between the terminal and a base station of the communication system; selecting a plurality of precoding matrixes from a precoding codebook by using the parameter of the downlink channel, wherein a plurality of the precoding matrixes can be used by both of single-user multi-input multi-output (MIMO) transport mode and multi-user MIMO transport mode, and the precoding codebook is an aggregation of precoding matrixes; and feeding back a first information for indicating a plurality of the precoding matrixes to the base station.

Abstract: A codebook based channel information feedback method, device and system are provided in the present invention. The codebook based channel information feedback method includes: measuring, by a terminal in a communication system, a parameter of a downlink channel between the terminal and a base station of the communication system; selecting a plurality of precoding matrixes from a precoding codebook by using the parameter of the downlink channel, wherein a plurality of the precoding matrixes can be used by both of single-user multi-input multi-output (MIMO) transport mode and multi-user MIMO transport mode, and the precoding codebook is an aggregation of precoding matrixes; and feeding back a first information for indicating a plurality of the precoding matrixes to the base station.

Abstract: A codebook based channel information feedback method, device and system are provided in the present invention. The codebook based channel information feedback method includes: measuring, by a terminal in a communication system, a parameter of a downlink channel between the terminal and a base station of the communication system; selecting a plurality of precoding matrixes from a precoding codebook by using the parameter of the downlink channel, wherein a plurality of the precoding matrixes can be used by both of single-user multi-input multi-output (MIMO) transport mode and multi-user MIMO transport mode, and the precoding codebook is an aggregation of precoding matrixes; and feeding back a first information for indicating a plurality of the precoding matrixes to the base station.

Abstract: An integrated colligation evaluating device for human body enginery indexes and the working method thereof. The device includes an equipment case (1) provided with a plurality of measuring sensors. A circuit board (13) which is electrically connected with a power source (2) is arranged in the equipment case (1). The circuit board (13) has a plurality of signal processing modules which are electrically connected with a CPU controller (14). Multiple measuring sensors can respectively transfer the human body plural enginery index signals to electrical signals, which are subsequently processed and analyzed by the signal processing modules. The processed electric signals are transmitted to the CPU controller (14) for analyzing and colligation evaluating, or displaying by a terminal displayer (6), or transmitting the human body plural enginery indexes and the human body healthy evaluation results to a master computer for preserving and processing through data transfer interfaces (15), forming and printing reports.

Abstract: A method of pairing users for an uplink multi-user multiple-input-multiple-output (MU-MIMO) system under coordinated multipoint transmission (CoMP) scenario in a communication system, which includes: selecting, by a first cell of the communication system, at least one initial user served by the cell as a first paired user; selecting, by the first cell, a candidate paired user according to the service type of the first paired user; and determining, from the different service types of the first paired user and the candidate paired user, a pairing type to be formed, and determining whether the candidate paired user and the first paired user can be paired into the pairing type to be formed by using a predetermined determination criterion according to the pairing type. It is further provided a device for performing the method. The throughput and communication efficiency of the communication system can be improved with the method and device for pairing users.

Abstract: A codebook based channel information feedback method, device and system are provided in the present invention. The codebook based channel information feedback method includes: measuring, by a terminal in a communication system, a parameter of a downlink channel between the terminal and a base station of the communication system; selecting a plurality of precoding matrixes from a precoding codebook by using the parameter of the downlink channel, wherein a plurality of the precoding matrixes can be used by both of single-user multi-input multi-output (MIMO) transport mode and multi-user MIMO transport mode, and the precoding codebook is an aggregation of precoding matrixes; and feeding back a first information for indicating a plurality of the precoding matrixes to the base station.

Abstract: An integrated colligation evaluating device for human body enginery indexes and the working method thereof. The device includes an equipment case (1) provided with a plurality of measuring sensors. A circuit board (13) which is electrically connected with a power source (2) is arranged in the equipment case (1). The circuit board (13) has a plurality of signal processing modules which are electrically connected with a CPU controller (14). Multiple measuring sensors can respectively transfer the human body plural enginery index signals to electrical signals, which are subsequently processed and analyzed by the signal processing modules. The processed electric signals are transmitted to the CPU controller (14) for analyzing and colligation evaluating, or displaying by a terminal displayer (6), or transmitting the human body plural enginery indexes and the human body healthy evaluation results to a master computer for preserving and processing through data transfer interfaces (15), forming and printing reports.