A communication method and system for reducing computational overhead by obtaining N native data packets; encoding the N native data packets into M encoded data packets using M linearly independent coefficient vectors respectively, where the M linearly independent coefficient vectors are selected from a look up table based on N and M; and sending, through a network, the M encoded data packets, where N1 and M1.

Radio network nodes, wireless devices, and related methods are provided in which a pseudo-random sequence initialization value, which is used during the generation of pseudo-random and/or scrambling sequences, is based, at least in part, on a first identifier, wherein the first identifier is equal to a first parameter if the first parameter has been configured and if a second identifier corresponds to a wireless-device-specific identifier.

A data receiving circuit includes a decision feedback equalization circuit, configured to perform decision feedback equalization on a receive circuit based on a feedback signal to adjust a first output signal and a second output signal, where the feedback signal is obtained based on previously received data, the decision feedback equalization circuit responds to a first control signal group and a second control signal group to change an adjustment capability, the first control signal group corresponds to one data port corresponding to a data signal, and the second control signal group corresponds to all data ports. The capability of the decision feedback equalization circuit can be controlled to adjust the first output signal and the second output signal, where the adjustment capability has a wide adjustable range, to reduce impact of intersymbol interference of received data on the data receiving circuit.

A method and an apparatus for correcting baseline wander is disclosed. The method and apparatus may include receiving a serial data stream that encodes a plurality of data symbols, and determining an average magnitude of a first data value included in one or more data symbols of a subset of the plurality of data symbols, and an average magnitude of a second value included in the one of more data symbols of the subset of the plurality of data symbols. A common mode operating point of an equalizer circuit may be adjusted using the average magnitude of the first data value and the average magnitude of the second data value.

A code division multiaccess (CDMA) communications system with low probability of intercept, low probability of detect (LPI/LPD) includes at least one data dictionary stored on a storage device of a sender subsystem and a recipient subsystem. The at least one data dictionary includes at least one data predetermined start time and date, at least one data predetermined end time and date based on a mission length or a predetermined wrap time and date, a CDMA chip rate, and a complex zero-mean independent and identically distributed (iid) sequence where each complex number in the complex zero-mean iid sequence represents a CDMA chip stored on the storage device of the sender subsystem and the recipient subsystem. The system includes a tangible, non-transitory, machine-readable medium comprising machine-executable instructions which, when executed by at least one processor of a machine, cause the at least one processor to: receive a message, convert the message to symbols with corresponding phasors, determine a date and time to send the message, look up a data spreading vector for each corresponding phasor by providing a mutually agreed number of chips per phasor stored on the storage device of the sender subsystem and the recipient subsystem and by matching the date and time the message is to be sent to the at least one data predetermined start time and date and the at least one data predetermined end time and date. Each data spreading vector is multiplied by its corresponding phasor to create a data spread vector for each data spreading vector. The sender subsystem is configured to sequentially transmit each chip of each data spread vector as a signal.

A method and an apparatus for correcting baseline wander is disclosed. The method and apparatus may include receiving a serial data stream that encodes a plurality of data symbols, and determining an average magnitude of a first data value included in one or more data symbols of a subset of the plurality of data symbols, and an average magnitude of a second value included in the one of more data symbols of the subset of the plurality of data symbols. A common mode operating point of an equalizer circuit may be adjusted using the average magnitude of the first data value and the average magnitude of the second data value.

A method of detecting u symbol transmitted over a communication channel in a multiple input-multiple output communication system. The method includes receiving a plurality of symbols transmitted over a communication channel of a multiple input-multiple output communication system. A sphere radius is initialized based on attributes of the communication channel. A first matrix of possible transmitted signals is defined as well as a second matrix of receiv ed symbols. The matrix of possible transmitted signals is searched using a breadth-first search (BFS). Each level of the search tree is analyzed utilizing matrix multiplication to determine selected symbols satisfying the initialized sphere radius. A maximum likelihood solution is of the transmitted symbols is derived based on the selected symbols.

In a detection circuit, inputs correspond to received indications of vector signaling code words received by a first integrated circuit from a second integrated circuit. With four inputs, the circuit compares a first pair to obtain a first difference result and compares a second pair, disjoint from the first pair, to obtain a second difference result. The first and second difference results are then summed to form an output function. A system might use a plurality of such detection circuits to arrive at an input word. The circuit can include amplification, equalization, and input selection with efficient code word detection. The vector signaling code can be a Hadamard matrix code encoding for three input bits. The circuit might also have frequency-dependent gain, a selection function that directs one of the summation function result or the first difference result to the output function, variable gain, and/or a slicer.

Radio network nodes, wireless devices, and related methods are provided in which a pseudo-random sequence initialization value, which is used during the generation of pseudo-random and/or scrambling sequences, is based, at least in part, on a first identifier, wherein the first identifier is equal to a first parameter if the first parameter has been configured and if a second identifier corresponds to a wireless-device-specific identifier.

Methods, apparatuses, and systems for packet detection in a point-to-point wireless communication network is disclosed. One method includes receiving, by a receiving node, a plurality of packets, adjusting, by an adjustable gain amplifier of the receiving node, a power level of the received plurality of packets, controlling, by a gain control module, a gain of the adjustable gain amplifier, thereby controlling the power level of the received plurality of packets, monitoring the controlled gain of the gain control module over a period of time, identifying a timing of reception of interfering packets based on the monitoring of the controlled gain of the gain control module over the period of time, and adjustably controlling, by the gain control module, the gain of the adjustable gain amplifier based on the identified timing of reception of the interfering packets.