A method of recovering information encoded by a modulated sinusoidal waveform having first, second, third and fourth data notches at respective phase angles, where a power of the modulated sinusoidal waveform is reduced relative to a power of an unmodulated sinusoidal waveform within selected ones of the first, second, third and fourth data notches so as to encode input digital data. The method includes receiving the modulated sinusoidal waveform and generating digital values representing the modulated sinusoidal waveform. A digital representation of the unmodulated sinusoidal waveform is subtracted from the digital values in order to generate a received digital data sequence, which includes digital data notch values representative of the amplitude of the modulated sinusoidal waveform within the first, second, third and fourth data notches. The input digital data is then estimated based upon the digital data notch values.

Because the number of transmitted layers can vary dynamically, the number of transmitted demodulation reference signals (DM-RS) can also vary. However, because the network node can know the number of ports, transmitted layers, or the rank, the network node can utilize the number as part of the scheduling information via a downlink or an uplink control channel. Therefore, the DMRS sequence generation can modified such that it depends on the number of ports, transmitted layers, or the rank, thereby generating a different random sequence for different ports.

Aspects of a methods, apparatus, and computer-readable medium for wireless communication at a wireless device are provided herein. The wireless device may receive a configuration for a resource pool for sidelink communication, the resource pool having a plurality of physical resource blocks (PRBs) including a first set of PRBs that are grouped in one or more sub-channels, each sub-channel having an equal number of PRBs, and a second set of PRBs that are not in the one or more sub-channels having the equal number of PRBs. The apparatus may transmit in the second set of PRBs. The second set of PRBs may not be monitored by a receiving device.

A communication system comprises a transmitter and a receiver that communicate differential phase modulated data over a wireline channel pair. The transmitter encodes data symbols by generating first and second data signals with differentially phase shifted signal transitions with respect to one another. The receiver receives the first data signal and the second data signal and samples the first data signal based on a signal transition timing of the second data signal to generate a first output data symbol. The receiver furthermore samples the second data signal based on signal transition timing of the first data signal to generate a second output data symbol.

Adaptive equalizer circuitry including both a continuous time equalizer (CTE) and a discrete time equalizer (DTE) and a method of jointly adapting the CTE and DTE in lane adaptation. Jointly adaptation of the CTE and DTE is performed by adapting the DTE at each of a plurality of filter characteristic settings of the CTE and determining a figure of merit for signals filtered by the CTE and DTE at that condition. Adaptation of the DTE may be performed by dynamically adjusting a convergence coefficient based on a history of error gradients. After a figure of merit is determined for each of the plurality of CTE filter characteristics, a CTE filter characteristic setting is then selected based on those figure of merit values, for example at a CTE setting near a midpoint of an acceptable region of figure of merit values.

Disclosed in some examples are methods, systems, devices, and machine-readable mediums which optimize one or more metrics of a communication system by intentionally changing symbols in a bitstream after encoding by an error correction coder, but prior to transmission. The symbols may be changed to meet a communication metric optimization goal, such as decreasing a high PAPR, reducing an error rate, reducing an average power level (to save battery), or altering some other communication metric. The symbol that is intentionally changed is then detected by the receiver as an error and corrected by the receiver utilizing the error correction coding.

A telecommunications method includes transmitting a multicarrier symbol constructed from points of a polar constellation that are modulated in blocks and controlling at least one phase rotation vector of one of the modulated blocks of points in order to reduce the peak-to-average power ratio of the transmitted multicarrier symbol.

A communication device includes an acquisition unit that acquires a bit sequence, and a conversion unit that converts the bit sequence to a predetermined complex constellation point sequence including a plurality of complex constellation points including a non-zero complex constellation point and a zero complex constellation point. At least one of the predetermined complex constellation point sequences is a first complex constellation point sequence in which each of a plurality of complex constellation points constituting the complex constellation point sequence is converted to any complex constellation point or zero complex constellation point of a first signal constellation including non-power of two number of complex constellation points. The conversion unit converts one of the bit sequences to at least the first complex constellation point sequence.

A communication system comprises a transmitter and a receiver that communicate differential phase modulated data over a wireline channel pair. The transmitter encodes data symbols by generating first and second data signals with differentially phase shifted signal transitions with respect to one another. The receiver receives the first data signal and the second data signal and samples the first data signal based on a signal transition timing of the second data signal to generate a first output data symbol. The receiver furthermore samples the second data signal based on signal transition timing of the first data signal to generate a second output data symbol.

A transmitting apparatus is disclosed. The transmitting apparatus includes an encoder to perform channel encoding with respect to bits and generate a codeword, an interleaver to interleave the codeword, and a modulator to map the interleaved codeword onto a non-uniform constellation according to a modulation scheme, and the constellation may include constellation points defined based on various tables according to the modulation scheme.