There is disclosed a method for operating a wireless device in a wireless communication network, the method comprising modulating a plurality of input bits (N), wherein modulating comprises choosing a first number (k) of frequencies from a predetermined set of a total number (NF) of frequencies, the first number (k) being larger than 1, and performing quadrature amplitude modulation to a second number (NQ) on each of the first number (k) of frequencies. There are further disclosed related methods and devices.

The invention discloses a method of conveying information from a sender to a receiver by use of various codeword patterns given in a mapping table and detection through decoding via the reverse mapping process. The codeword patterns may be selected as combinations of bits, frequencies, ports, or other elements as desired. Associated systems for carrying out the described encoding methods are also provided. The various methods may be applicable in low transmit power, energy-saving, secure, low latency, storage and in military, mobile, optical, deep space and fixed telecommunication systems for long range transmission and reliable information.

Systems and methods for transpositional modulation and demodulation are provided. One such method for generating a signal includes the steps of providing a look-up table having a plurality of quarter-cycle waveforms, each of said quarter-cycle waveforms associated with a respective input level; receiving an input signal; and outputting quarter-cycle waveforms associated with levels of the received input signal. Systems for transpositional modulation are also provided. One such system for generating a signal includes a look-up table having a plurality of quarter-cycle waveforms. Each of the quarter-cycle waveforms are associated with a respective input level, and the look-up table is configured to receive an input signal, and output quarter-cycle waveforms associated with levels of the received input signal.

Systems and methods for transpositional modulation and demodulation are provided. One such method for generating a signal includes the steps of providing a look-up table having a plurality of quarter-cycle waveforms, each of said quarter-cycle waveforms associated with a respective input level; receiving an input signal; and outputting quarter-cycle waveforms associated with levels of the received input signal. Systems for transpositional modulation are also provided. One such system for generating a signal includes a look-up table having a plurality of quarter-cycle waveforms. Each of the quarter-cycle waveforms are associated with a respective input level, and the look-up table is configured to receive an input signal, and output quarter-cycle waveforms associated with levels of the received input signal.

Methods and systems for operation in a wireless network are provided, the method including receiving modulated data symbols and zeros in a frequency-domain, and mapping in the frequency-domain the modulated data symbols and zeros in an interleaved manner to sub-carriers within a resource allocation. The method further includes generating a time-domain data signal based on the mapped sub-carriers, and generating a time domain cancellation signal by sign inverting and repeating a predetermined number of time-domain samples at a tail portion of the data signal. The method further includes combining the time-domain data signal and the time domain cancellation signal to generate an exact zero tail data signal such that the exact zero tail data signal has a zero tail length equal to the predetermined number of time-domain samples, and transmitting the exact zero tail data signal.

Systems, methods and devices for transmitting and receiving and demodulating transpositional modulated signals, for increasing information bandwidth of defined communication channels, and for time-delay shifting an input signal in accordance to an input control signal are provided. One such method of increasing the information bandwidth of a defined communication channel includes receiving a first modulated signal having a first carrier signal frequency; receiving a second modulated signal having a second carrier signal frequency, the second modulated signal being modulated with information independent of information modulating the first carrier signal, the second carrier signal frequency being harmonically or sub-harmonically related to the first carrier signal frequency; and combining the first and second signals.

Systems, methods and devices for transmitting and receiving and demodulating transpositional modulated signals, for increasing information bandwidth of defined communication channels, and for time-delay shifting an input signal in accordance to an input control signal are provided. One such method of increasing the information bandwidth of a defined communication channel includes receiving a first modulated signal having a first carrier signal frequency; receiving a second modulated signal having a second carrier signal frequency, the second modulated signal being modulated with information independent of information modulating the first carrier signal, the second carrier signal frequency being harmonically or sub-harmonically related to the first carrier signal frequency; and combining the first and second signals.

Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine, for a first logical channel, that a first delay threshold for the first logical channel is satisfied. The user equipment may remap data from the first logical channel to a second logical channel, wherein the second logical channel is prioritized over the first logical channel and is associated with a second delay threshold that is less than the first delay threshold. In some aspects, the user equipment may send a buffer status report which includes information about the second logical channel. Numerous other aspects are provided.

Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine, for a first logical channel, that a first delay threshold for the first logical channel is satisfied. The user equipment may remap data from the first logical channel to a second logical channel, wherein the second logical channel is prioritized over the first logical channel and is associated with a second delay threshold that is less than the first delay threshold. In some aspects, the user equipment may send a buffer status report which includes information about the second logical channel. Numerous other aspects are provided.

A transceiver system includes a signal generator and controller circuit, a first signal converter circuit, an attenuator circuit, and a second signal converter circuit. Signal generator and controller circuit generates a transmitting baseband signal. First signal converter circuit generates a transmitting radio frequency signal according to transmitting baseband signal. Attenuator circuit generates an attenuated radio frequency signal according to transmitting radio frequency signal. Second signal converter circuit generates an attenuation range baseband reference signal according to attenuated radio frequency signal. Signal generator and controller circuit determines a first attenuation range for attenuator circuit according to attenuation range baseband reference signal when transmitting baseband signal is a dual-tone signal, and determines a second attenuation range from first attenuation range for attenuator circuit according to attenuation range baseband reference signal when transmitting baseband signal is a single-tone signal, and second attenuation range is for a pre-distortion process.