An arbitrary rate digital decimator filter (204) and associated method are disclosed for filtering a digital data stream with a plurality of cascaded power-of-two decimator stages (205, 207) connected to receive the digital data stream and to generate a first filtered digital signal which is provided to a fractional resampling stage (211) which generates a second filtered digital signal with delta-sigma modulator (310) and a limited integrator stage (320) connected to receive a first control (301) word and a feedback clock signal (305) with inserted or swallowed pulses which is generated by a clock generator in response to pulse commands generated by the limited integrator stage, wherein the limited integrator is configured to generate time shift commands (303) to a timing shift filter (340) which performs fractional interpolation on the first filtered digital signal to generate the second filtered digital signal.

The present disclosure provides an encoding method and an encoder for a (n, n(n1), n1) permutation group code in a communication modulation system, in which 2.sup.k k-length binary information sequences are mapped to 2.sup.k n-length permutation codeword signal points in a n-dimensional modulation constellation .sub.n. The constellation .sub.n with the coset characteristics is formed by selecting 2.sup.k n-length permutation codewords from n(n1) permutation codewords of a code set P.sub.n,x.sub.i of the (n, n(n1), n1) permutation group code based on coset partition. The constellation .sub.n is a coset code in which 2.sup.k.sup.1 cosets are included and each coset includes 2.sup.k.sup.2 permutation codewords, where k=k.sub.1+k.sub.2, and 2.sup.kn(n1). The present disclosure utilizes the coset characteristics to realize one-to-one correspondence mapping of the binary information sequence set to the permutation code constellation, so that the time complexity of executing the encoder is at most the linear complexity of the code length n.

A method for processing an electrical signal comprises receiving an electrical signal comprising a frequency modulated signal encoding digital data; sampling a first portion of the electrical signal to obtain a plurality of samples to obtain a first sample set; determining an index value from the first sample set by assigning a value to each sample in the first sample set based upon an amplitude of the sample; comparing the determined index value with a plurality of predetermined index values to identify a first output value from a plurality of predetermined output values, each of the predetermined index values corresponding to one of the plurality of predetermined output values; and outputting an indication of the output value. Each of the predetermined output values indicates a respective frequency modulation encoded value and the first output value indicates a frequency modulation encoded value within the first portion of the electrical signal.

A near-field capacitive data communication system that uses a variable capacitive device such as a PIN diode to change the capacitance of a conductive plate in response to either a high or low data signal. A detector attached to a second conductive plate that is in proximity to the first conductive plate measures the capacitance of the first conductive plate and outputs a corresponding data signal. The technique is wireless, since the two conductive plates are not in electrical contact with one-another, but rather share their static electric fields. A microcontroller can act as a detector by baselining the capacitance of the first conductive plate when its capacitance is in the low capacitance state. The technique is ideal for communication between a pair of toys that can be brought in close proximity to one-another. Since no radio frequencies are used, no special testing or governmental electromagnetic compatibility rules apply.

A system and method of minimizing interference and retries in an environment where two or more network protocols utilize the same frequency spectrum is disclosed. A lower-power network controller is co-located with a WIFI controller. The lower-power network controller listens for a signature that may indicate the presence of a low power protocol packet, such as BLE or Zigbee. The lower-power controller checks for a waveform that is representative of a Zigbee packet prior to generating a request signal to the WIFI controller. This maximizes the likelihood that no WIFI traffic will occur while the incoming packet is being received.

A receiving method based on multiple frequency-shift keying (M-FSK) modulation. The method comprises performing M-FSK demodulation on a frame structure comprising a preamble frame, a SYNC frame, and a data frame. The performing comprises: performing the M-FSK demodulation of the preamble frame using an autocorrelation time-frequency synchronization technology; performing the M-FSK demodulation of the preamble frame using a time-frequency synchronization technology using cross-correlation sliding fast Fourier transform (FFT); and performing the M-FSK demodulation of at least one of the SYNC frame or the data frame using an M-FSK data demodulation technology using adaptive and scalable FFT.

A receiving method based on multiple frequency-shift keying (M-FSK) modulation. The method comprises performing M-FSK demodulation on a frame structure comprising a preamble frame, a SYNC frame, and a data frame. The performing comprises: performing the M-FSK demodulation of the preamble frame using an autocorrelation time-frequency synchronization technology; performing the M-FSK demodulation of the preamble frame using a time-frequency synchronization technology using cross-correlation sliding fast Fourier transform (FFT); and performing the M-FSK demodulation of at least one of the SYNC frame or the data frame using an M-FSK data demodulation technology using adaptive and scalable FFT.

The present disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE). Provided is an operation method of a base station in a wireless communication system. The method comprises: receiving, from a terminal, at least one piece of information among channel quality information on a resource region allocated to the terminal and non-Gaussian information on a nulling region corresponding to the resource region; and determining a modulation order for the terminal, a code rate, a ratio of the resource region to the nulling region based on the channel quality information and the non-Gaussian information.

A method, apparatus and computer program product for performing decimated correlation in a wireless communications network is disclosed. An input signal composed of a plurality of streaming samples of the input signal is received and applied to a plurality of shift registers coupled to computation logic. The computation logic receives an input of correlation options and a correlation pattern. Based upon a comparison to a correlation threshold, the correlator selectively holds the correlation options constant to inhibit a new correlation, and/or selectively freezes streaming samples input to the computation logic via a plurality of corresponding shadow registers to save power.

The present disclosure relates to methods for communicating data in a wireless communication system, especially a method, performed in a wireless device, for transmitting data from the wireless device to a wireless network node in OFDMA system having multiple resource units. The method comprises obtaining instructions to use at least one of the resource units for data transmission, receiving information regarding a set of allowed combinations of transmission parameters to use when modulating signals, modulating signals from the wireless device based on the combination of the received transmission parameters to create signals having constant amplitude and/or continuous phase in the time domain using a modulation scheme other than Orthogonal Frequency-Division Multiplexing, OFDM, and transmitting the modulated signals in the frequency ranges defined by the used at least one of the resource units.