A method of wireless communication by a user equipment includes determining an allocation of a set of tones in a symbol for conveying data. The method further includes determining to use m-ary phase shift keying (MPSK) to modulate the data onto a subset of tones of the set of tones. The method further includes modulating the data onto the subset of tones based on a mapping, wherein the mapping maps pairs of data values with a largest Hamming distance from each other to pairs of constellation points with a maximum Euclidean distance from each other.

This application provides a multichannel-based signal transmission method and apparatus. The method includes: combining N groups of lower-order modulation symbols into N groups of higher-order modulation symbols, where an ith higher-order modulation symbol in each group of higher-order modulation symbols is obtained by combining ith lower-order modulation symbols in all the N groups of lower-order modulation symbols, each group of lower-order modulation symbols includes M lower-order modulation symbols, i=1, 2, . . . , M, N is a positive integer greater than 1, and M is a positive integer greater than 1; determining N to-be-sent signals based on the N groups of higher-order modulation symbols; and sending a kth to-be-sent signal in the N to-be-sent signals by using a kth channel in N channels, where k=1, 2, . . . , N.

A method for operating a data processing system to compute the response of a DUT to a modulated input signal is disclosed. The method includes determining a set of parameters for a first model of the DUT from a plurality of measurements of output values from the DUT, each output value includes a measurement of a gain and phase shift provided by the DUT when the DUT is stimulated with a single tone input signal having a frequency in a frequency range determined by the modulated signal. The method also determines a second model that characterizes noise generated by the DUT at the single tone input signals. A performance parameter for an output signal that would be obtained by applying the modulated input signal to an input of the DUT, and receiving the output of the DUT is then determined from the first and second models.

Systems, methods and apparatus are described that facilitate transmission of data between two devices within an electronic apparatus. An apparatus has a bus interface, a 3-phase encoder, and a processing circuit that can configure the 3-phase encoder for a first mode of operation in which data is encoded in a sequence of two-bit symbols, transmit a first three-phase signal representative of the sequence of two-bit symbols on each of the three wires. The processing circuit may be configured to configure the 3-phase encoder for a second mode of operation in which data is encoded in a sequence of three-bit symbols. Three-phase signal representative of the sequence of two-bit symbols or sequence of three-bit symbols on each of three wires, where a three-phase signal is in a different phase on each wire when transmitted, and a transition in signaling state occurs between transmission of each pair of symbols.

This application provides a multichannel-based signal transmission method and apparatus. The method includes: combining N groups of lower-order modulation symbols into N groups of higher-order modulation symbols, where an ith higher-order modulation symbol in each group of higher-order modulation symbols is obtained by combining ith lower-order modulation symbols in all the N groups of lower-order modulation symbols, each group of lower-order modulation symbols includes M lower-order modulation symbols, i=1, 2, . . . , M, N is a positive integer greater than 1, and M is a positive integer greater than 1; determining N to-be-sent signals based on the N groups of higher-order modulation symbols; and sending a kth to-be-sent signal in the N to-be-sent signals by using a kth channel in N channels, where k=1, 2, . . . , N.

Systems, methods and apparatus are described that facilitate transmission of data between two devices within an electronic apparatus. An apparatus has a bus interface, a 3-phase encoder, and a processing circuit that can configure the 3-phase encoder for a first mode of operation in which data is encoded in a sequence of two-bit symbols, transmit a first three-phase signal representative of the sequence of two-bit symbols on each of the three wires. The processing circuit may be configured to configure the 3-phase encoder for a second mode of operation in which data is encoded in a sequence of three-bit symbols. Three-phase signal representative of the sequence of two-bit symbols or sequence of three-bit symbols on each of three wires, where a three-phase signal is in a different phase on each wire when transmitted, and a transition in signaling state occurs between transmission of each pair of symbols.

A method of wireless communication by a user equipment includes determining an allocation of a set of tones in a symbol for conveying data. The method further includes determining to use m-ary phase shift keying (MPSK) to modulate the data onto a subset of tones of the set of tones. The method further includes modulating the data onto the subset of tones based on a mapping, wherein the mapping maps pairs of data values with a largest Hamming distance from each other to pairs of constellation points with a maximum Euclidean distance from each other.