Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit, to a base station, a request for a data transmission that includes multiple subsets of data each associated with a different constellation granularity. In response to the request, the base station may encode the data transmission using multiple different constellation granularities and may transit the encoded data transmission to the UE. For example, the UE may receive the data transmission including a first subset of data that was encoded by the base station using a first constellation granularity and a second subset of data that was encoded by the base station using a second constellation granularity. The UE may then iteratively estimate phase-noises associated with respective subsets of data and perform phase-noise correction operations on the entire data transmission based on the estimated phase-noises.

A communication method and apparatus are configured to design a constellation diagram that matches a communication scenario. The constellation diagram can adapt to different communication scenarios and meet different communication performance requirements, thereby improving network performance. In the communication method, a first communication apparatus sends a constellation diagram design parameter, where the constellation diagram design parameter includes a communication scenario design parameter and a communication apparatus design parameter. The first communication apparatus receives information about a second constellation diagram, where the second constellation diagram corresponds to the constellation diagram design parameter. The first communication apparatus performs communication by using the second constellation diagram.

A system and method including multi-dimensional coded modulation wherein symbols within successive blocks of symbols are mapped using at least two different constellations to differentiate the symbols from each other. At least one data bit is encoded by an order of the symbols within each block of symbols. The receiver decodes the data by decoding at least one bit from the order of the symbols mapped with the first and second constellations.

A system and method including multi-dimensional coded modulation wherein symbols within successive blocks of symbols are mapped using at least two different constellations to differentiate the symbols from each other. At least one data bit is encoded by an order of the symbols within each block of symbols. The receiver decodes the data by decoding at least one bit from the order of the symbols mapped with the first and second constellations.

Provided is a wireless communication device and a wireless communication method which can maintain compatibility with a plurality of communication schemes and send a response signal back within the allowed time specified by each communication scheme. The wireless communication device includes a radio receiving unit (120) that receives a packet having a format conforming to a first communication scheme and including a second format portion conforming to a second communication scheme using a higher frequency band than the first communication scheme and a first format portion excluding the second format portion, and a processing unit (160) that, outputs a response signal at completion of demodulation and decoding of the first format portion, regardless of whether demodulation and decoding of the second format portion are completed or not.

Methods to improve the data carrying capacity of CATV DOCSIS systems and other communications systems are disclosed. Communications channels may be more efficiently spaced with reduced or absent guard bands by using receivers with adaptive signal cancellation methods, equalizing circuits, or polyphase filter banks and Fast Fourier Transform signal processing methods to correct for higher levels of cross-talk. QAM type communications channels may also be utilized on a synchronized two-transmitter at a time basis by adjusting the transmitters to predefined signal levels, such as +1, −1, +½, −½ to enable the combined signals to be distinguished at the receiver. These two methods may be combined to create a still higher data throughput system.

Numerous Clos Star Networks (CSNs), each constructed as a set of connectors providing single-hop paths for each pair of access nodes of a respective access group, are fused to form a large-scale global network providing at least one single-hop path for each pair of access nodes of the formed global network. The access groups are arranged into access bands of multiple access groups each. Connectors of CSNs are paired to form distributors so that each access node has multiple parallel single-hop paths to each other access node of the same access band and one single-hop path to each access node of each other access band. The distributors are clustered into a set of geographically-spread constellations and each access node of the global network has a direct multichannel link to each of a respective subset of constellations thus entirely eliminating use of cross connectors and significantly simplifying the network structure.

Provided are a data modulation method and apparatus, a device, and a storage medium. The data modulation method includes that: a modulation manner is configured, where a constellation point modulation symbol of the modulation manner is formed by combining a first group of constellation point modulation symbols and a second group of constellation point modulation symbols; and data is modulated by using the modulation manner, where the data includes a first data block and a second data block, the first data block is modulated by the first group of constellation point modulation symbols, and the second data block is modulated by the second group of constellation point modulation symbols.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may obtain a multi-level coding (MLC) configuration to be applied to a quadrature amplitude modulation (QAM) constellation set comprising a plurality of constellation symbols and having a non-linearity that is based at least in part on a phase noise or a power amplification associated with the plurality of constellation symbols. The mobile station may process the QAM constellation set, using MLC set partitioning in accordance with the MLC configuration, based at least in part on the phase noise or the power amplification associated with the plurality of constellation symbols of the QAM constellation set. Numerous other aspects are described.

A method for determining and compensating for residual phase noise in a 5G NR DL signal includes converting a block of 5G NR DL time domain signal samples into a block of frequency domain samples for one OFDM data symbol and equalizing and combining the frequency domain samples that fall in an outermost sample accumulation region of each quadrant to form a first composite sample for each quadrant, selecting a signal constellation point belonging to one of the four outermost constellation point decision region as a reference constellation point, rotating at least some of the first composite samples so that the first composite samples are in the same quadrant as the reference constellation point, combining the rotated first composite samples to produce a second composite sample, calculating a phase error between the second composite sample and the reference constellation point, applying phase correction corresponding to the phase error to all subcarriers of the OFDM data symbol, and generating output data from the phase-error-corrected OFDM symbol.