Abstract: Disclosed are a non-orthogonal multiple access (NOMA) multi-layer transmission method and an apparatus therefor. The method includes: a terminal determines a spread spectrum sequence group for NOMA multi-layer transmission, with the terminal being configured for NOMA multi-layer transmission, and the spread spectrum sequence group includes N spread spectrum sequences, the N spread spectrum sequences correspond to N data layers, the N spread spectrum sequences are mutually orthogonal, N is the number of data layers of NOMA multi-layer transmission, and N is an integer greater than 1; and the terminal sends data, the data comprising the N data layers using the spread spectrum sequence group for spectrum spreading.

Abstract: The present application relates to the technical field of communications, and disclosed therein are a data transmission method and device, which are used to better support non-orthogonal multiple access data transmission in an uplink grant-free scenario. The data transmission method comprises: determining a demodulation reference signal (DMRS) orthogonal port pattern of an uplink data channel, there being more than 12 DMRS orthogonal ports; and using the DMRS orthogonal port pattern to carry out data transmission.

Abstract: Embodiments of the present application provide a method and a device for determining a power control offset for a PUCCH, for resolving the technical issue in which existing methods for determining a power control offset for a PUCCH are incompatible with new radio communications systems. The method comprises: determining the number of bits, OUCI, of first uplink control information (UCI) required to be transmitted on a PUCCH, and determining the number, NRE, of resource elements (RE) carrying the first UCI in the PUCCH; and determining, according to formula (I), an offset ? P U C C H _ T F , c i for calculation of power control of the PUCCH, wherein g(OUCI/NRE) is a function having OUCI and NRE as variables thereof.

Abstract: Embodiments of the present application provide a method and a device for determining a power control offset for a PUCCH, for resolving the issue in which existing methods for determining a power control offset for a PUCCH are incompatible with new radio communications systems. The method comprises: determining the number of bits, OUCI, of first uplink control information (UCI) required to be transmitted on a PUCCH, and determining the number, NRE, of resource elements (RE) carrying the first UCI in the PUCCH; and determining, according to formula (I), an offset ?PUCCH_TF,c(i) for calculation of power control of the PUCCH, and g(OUCI/NRE) is a function having OUCI and NRE as variables thereof.

Abstract: A method of controlling service transmission, a terminal and a network device are provided, the method is performed by a first terminal, including: obtaining an indication signaling, where the indication signaling includes: first indication information of a resource position occupied by a high-priority service transmission of a second terminal in a reference resource domain, and second indication information indicating whether there exists a resource conflict between a service transmission of the first terminal and the high-priority service transmission; when there exists a resource conflict between the service transmission of the first terminal and the high-priority service transmission, stopping a service transmission on a target resource position where the resource conflict occurs according to the first indication information.

Abstract: An uplink power control method and a mobile terminal are provided. The method includes: acquiring an uplink transmission parameter corresponding to an uplink channel format; calculating an uplink power adjustment value according to the uplink transmission parameter, to control an uplink power.

Abstract: Disclosed are a non-orthogonal multiple access (NOMA) multi-layer transmission method and an apparatus therefor. In the present disclosure, a terminal determines a spread spectrum sequence group for NOMA multi-layer transmission, with the terminal being configured for NOMA multi-layer transmission, wherein the spread spectrum sequence group includes N spread spectrum sequences, the N spread spectrum sequences correspond to N data layers, the N spread spectrum sequences are mutually orthogonal, N is the number of data layers of NOMA multi-layer transmission, and N is an integer greater than 1; and the terminal sends data, the data comprising the N data layers using the spread spectrum sequence group for spectrum spreading.

Abstract: The present application relates to the technical field of communications, and disclosed therein are a data transmission method and device, which are used to better support non-orthogonal multiple access data transmission in an uplink grant-free scenario. The data transmission method comprises: determining a demodulation reference signal (DMRS) orthogonal port pattern of an uplink data channel, there being more than 12 DMRS orthogonal ports; and using the DMRS orthogonal port pattern to carry out data transmission.

Abstract: A method and a device for dividing short TTIs of a special subframe are provided. The method includes: in a case that a configuration of a special subframe having a normal CP is used in downlink, and a DwPTS of the special subframe is used for short TTI transmission, dividing short TTIs in the DwPTS based on a predefined division pattern of short TTIs in a case that based on the configuration of the special subframe having the normal CP used in downlink and a length of a control region in the DwPTS, the DwPTS is determined to satisfy a division condition corresponding to the predefined division pattern of short TTIs.

Abstract: A method of generating an uplink signal sequence, a user equipment, a base station and a computer-readable storage medium are provided. The method includes: generating an uplink signal sequence ru,v(?)(n) based on ru,v(?)(n)=ej?nru,v(n), 0?n<12, where a is configured to distinguish a terminal, an uplink signal base sequence ru,v(n)=ej?(n)?/4, where u represents a group number, and v represents an intra-group base sequence number, ?(n)?/4 represents a phase of a base sequence; performing a full traversal of multiple possible phases of the phase ?(n)?/4 on the uplink signal sequence with a length of 12, and selecting a predetermined number of uplink signal sequences with a lowest peak-to-average power ratio and a lowest cross-correlation characteristic.

Abstract: Disclosed in the present application are a data transmission method and device.

Abstract: Embodiments of the present application provide a method and a device for determining a power control offset for a PUCCH, for resolving the issue in which existing methods for determining a power control offset for a PUCCH are incompatible with new radio communications systems. The method comprises: determining the number of bits, OUCI, of first uplink control information (UCI) required to be transmitted on a PUCCH, and determining the number, NRE, of resource elements (RE) carrying the first UCI in the PUCCH; and determining, according to formula (I), an offset ?PUCCH_TF,c(i) for calculation of power control of the PUCCH, and g(OUCI/NRE) is a function having OUCI and NRE as variables thereof.

Abstract: An uplink power control method and a mobile terminal are provided. The method includes: acquiring an uplink transmission parameter corresponding to an uplink channel format; calculating an uplink power adjustment value according to the uplink transmission parameter, to control an uplink power.

Abstract: Disclosed in the present application are a data transmission method and device.

Abstract: A method of generating an uplink signal sequence, a user equipment, a base station and a computer-readable storage medium are provided. The method includes: generating an uplink signal sequence ru,v(?)(n) based on ru,v(?)(n)=ej?nru,v(n), 0?n<12, where a is configured to distinguish a terminal, an uplink signal base sequence ru,v(n)=ej?(n)?/4, where u represents a group number, and v represents an intra-group base sequence number, ?(n)?/4 represents a phase of a base sequence; performing a full traversal of multiple possible phases of the phase ?(n)?/4 on the uplink signal sequence with a length of 12, and selecting a predetermined number of uplink signal sequences with a lowest peak-to-average power ratio and a lowest cross-correlation characteristic.

Abstract: A method and a device for dividing short TTIs of a special subframe are provided. The method includes: in a case that a configuration of a special subframe having a normal CP is used in downlink, and a DwPTS of the special subframe is used for short TTI transmission, dividing short TTIs in the DwPTS based on a predefined division pattern of short TTIs in a case that based on the configuration of the special subframe having the normal CP used in downlink and a length of a control region in the DwPTS, the DwPTS is determined to satisfy a division condition corresponding to the predefined division pattern of short TTIs.