An apparatus for receiving non-orthogonal transmissions in a wireless communication system includes a processor configured to determine a first superposed symbol from a plurality of superposed symbols, based on superposition information and a first set of decoding information, wherein the first superposed symbol is corresponding to a first user equipment. The processor generates a residual signal based on the first superposed symbol and the superposition information, and determines a second superposed symbol based on the residual signal and a second set of decoding information, wherein the second superposed symbol is corresponding to a second user equipment. The superposition information comprises a quantity of the plurality of superposed symbols and an ordering of the plurality of superposed symbols.

A method and device for carrying out communication in a wireless communication system are disclosed. The method by which the device carries out communication, according to an embodiment of the present disclosure, comprises the steps of: receiving a PBCH from a base station; and monitoring a PDCCH for at least one of first DCI and second DCI, wherein the size of the first DCI including indication information indicating a ChE1111161 access type and the size of the second DCI not including the indication information may be the same.

Embodiments of the present invention provide a data communication method and a related device. The data communication method may include performing, by a first communications device, power adjustment on Q codebooks using Q power factors, to obtain power-adjusted Q codebooks, where Q is a positive integer, and the Q power factors and the Q codebooks are in a one-to-one correspondence and mapping, by the first communications device, Q to-be-transmitted bit sequences to Q codewords in the power-adjusted Q codebooks, where the Q bit sequences and the Q codewords are in a one-to-one correspondence. The method also includes obtaining, by the first communications device, a modulation symbol based on the Q codewords and sending, by the first communications device, the modulation symbol on a resource block.

For each UE, a base station determines the number of streams for transmitting a data signal, performs different precoding on the data signal depending on the UE, and allocates different transmission powers to at least two UEs. The base station transmits streams addressed to the at least two UEs in a form in which these streams are non-orthogonally mixed, with transmission powers that are different for the UEs. For each of the streams addressed to these UEs, the base station estimates predictive indices for these UEs from channel state information determined by the UEs to which those streams are addressed, and, based on the predictive indices, allocates different transmission powers to those UEs such that the better the predictive index is, the lower the transmission power is.

Methods, systems, and devices for wireless communications are described that provide a number of groups of transmitters, each group of transmitters having at least one user equipment (UE), and each group of transmitters having an associated transmission opportunity (TXO) for transmission of a reference signal. A number of UEs may transmit transmissions to a base station according to non-orthogonal multiple access (NOMA) techniques in which two or more UEs concurrently transmit to the base station. Depending upon a number of UEs, a number of groups of transmitters, an overloading factor of NOMA transmissions, a system bandwidth, a time span of the reference signal TXO, or any combination thereof, a binary or non-binary orthogonal cover code (OCC) may be applied to transmitted reference signals, which the base station may use to identify reference signals from particular UEs.

There is provided a method including receiving, at a first near apparatus, first control information including downlink control information relating to the first near apparatus and a first pointer; wherein the pointer is configured to indicate where, in a common second control information, downlink control information may be found for at least one far/paired second apparatus associated with that first near apparatus; receiving, at the first near apparatus, second common control information including downlink control information relating to the at least one far/paired second apparatus; and using the first pointer to extract downlink control information from the second control information relating to a specific apparatus of the at least one far/paired second apparatus.

A data transmission method and a data transmission device are provided. A transmission device classifies data symbols for each scheduled user into groups based on logic resource element groups determined based on encoding matrices each multiplexed by multiple users, encodes respective groups of data symbols for each user in accordance with the encoding matrices to determine groups of encoded data symbols for each user, subjects respective groups of encoded data symbols for each user to a mapping treatment based on logic resource elements, maps respective logic resource element groups to a physical resource block in accordance with a mapping mode, and transmits data to a reception device based on the physical resource block.

Network node and method in a network node, comprising: grouping a plurality of UEs into at least a first UE group and a second UE group; assigning a mutually orthogonal pilot sequence to each UE comprised in the first UE group; assigning a mutually orthogonal pilot sequence to each UE comprised in the second UE group; assigning a resource-offset to the UEs comprised in each UE group, by which each UE is allowed to start its transmission sub-frame in its Transmission Time Interval, TTI; and transmitting the assigned pilot sequences and the assigned resource-offset to UEs.

The present invention relates to a method for assigning transmission resources (101) to communications between an access node (11) and a plurality of subscriber devices (41 to 46) coupled to a shared transmission medium. In accordance with an embodiment of the invention, the method comprises characterizing interference between respective ones of the plurality of subscriber devices over the shared transmission medium, grouping highly-interfering subscriber devices into respective interfering groups (G1, G2, G3, G4) based on the so-characterized interference, and assigning disjoint transmission time intervals to upstream communication from any one subscriber device of any one interfering group and to downstream communication towards any other subscriber device of the same interfering group. The present invention also relates to a resource controller.

A base station serving as a transmission apparatus includes a plurality of transmission antennas capable of forming beams directed to a plurality of terminals, which are reception apparatus, and a precoder configured to perform outer precoding on transmission signals transmitted from the plurality of transmission antennas. The plurality of terminals include at least one first reception apparatus, which are transmission destinations of the transmission signals, and second reception apparatus, which are reception apparatus other than the first reception apparatus. The precoder performs outer precoding on the transmission signals transmitted from the plurality of transmission antennas so that received power in the second reception apparatus among the plurality of reception apparatus is equal to or less than a threshold.