H04J4/00

Synchronous dual band signal acquisition and source location system
12160052 · 2024-12-03 · ·

A dual band radio frequency signal acquisition and source location system, provided with a steerable phased array antenna operable in a first and a second radio frequency band. A digital signal processor electrically connected to the steerable phased array antenna is configured to control steering of an antenna beam of the steerable phased array antenna and apply frequency time division multiplexing to radio frequency signaling in the first and the second radio frequency bands. In particular, the first frequency band may be 2.4 GHz Bluetooth/Bluetooth Low Energy, and the second frequency band may be 900 MHz passive UHF RFID.

Apparatus, system and method of beam tracking

Some demonstrative embodiments include apparatuses, devices, systems and methods of beam tracking For example, an apparatus may include a transmitter to transmit data to a wireless communication device via a first beam direction of a plurality of beam directions, and to transmit one or more pilot signals via one or more other beam directions of the plurality of beam directions; and a receiver to receive from the wireless communication device a feedback indicating a second beam direction of the plurality of beam directions, the second beam direction being one of the one or more other beam directions, wherein the transmitter is to switch to the second beam direction to communicate with the wireless communication device.

Apparatus, system and method of beam tracking

Some demonstrative embodiments include apparatuses, devices, systems and methods of beam tracking For example, an apparatus may include a transmitter to transmit data to a wireless communication device via a first beam direction of a plurality of beam directions, and to transmit one or more pilot signals via one or more other beam directions of the plurality of beam directions; and a receiver to receive from the wireless communication device a feedback indicating a second beam direction of the plurality of beam directions, the second beam direction being one of the one or more other beam directions, wherein the transmitter is to switch to the second beam direction to communicate with the wireless communication device.

SYSTEMS AND METHODS FOR ADAPTIVE AVERAGING IN FREQUENCY DOMAIN EQUALIZATION SYSTEMS
20180034491 · 2018-02-01 · ·

An example system comprises a first antenna and a modem. The first antenna is configured to receive a signal from a transmitting radio frequency unit. The signal includes data and a known sequence. The modem is configured to retrieve the known sequence from the signal, transform the known sequence and the data into a frequency domain, calculate averages of groups of neighboring frequency points in the frequency domain to reduce the effect of nonlinear noise in the signal, the neighboring frequency points corresponding to the preamble in the frequency domain, compare the calculated averages to an expected frequency response in the frequency domain, determine a correction filter to apply to the data based on the comparison, apply the correction filter on the data in the frequency domain to create corrected data, transform the corrected data from the frequency domain to the time domain, and provide the data.

INTEGRATED CIRCUIT FOR INVERSE DISCRETE FOURIER TRANSFORMING A FREQUENCY DOMAIN SIGNAL TO A TIME DOMAIN SYMBOL SEQUENCE
20180027564 · 2018-01-25 ·

A communication apparatus includes a receiver, a combiner, and a transformer. The receiver receives signals mapped on plural frequency bands. A size of at least one of the frequency bands is a multiple of a product of two or more powers of prime numbers, which are integer numbers greater than 1 and are different from each other. An exponent for at least one of the prime numbers is an integer greater than 1. The combiner combines the received signals into a combined signal. The transformer transforms the combined signal in a frequency domain into a symbol sequence in a time domain with an inverse discrete Fourier transform (IDFT) having a size that is a product of powers of plural values. The values are integer numbers greater than 1 and are different from each other. An exponent for at least one of the values is an integer greater than 1.

METHOD AND APPARATUS OF CONTROLLING PERIODIC CSI REPORTING
20180019796 · 2018-01-18 · ·

Exemplary embodiments of the present invention relates to an apparatus and method for performing periodic CSI reporting available in a system supporting a TDD-FDD aggregation operation and an FDD-TDD aggregation operation. A periodicity and an offset for periodic reporting of channel quality indicator and precoding matrix inidcator may be determined based on the cell type of a primary serving cell for a TDD-FDD carrier aggregation and an FDD-TDD carrier aggregation.

METHOD AND APPARATUS OF CONTROLLING PERIODIC CSI REPORTING
20180019796 · 2018-01-18 · ·

Exemplary embodiments of the present invention relates to an apparatus and method for performing periodic CSI reporting available in a system supporting a TDD-FDD aggregation operation and an FDD-TDD aggregation operation. A periodicity and an offset for periodic reporting of channel quality indicator and precoding matrix inidcator may be determined based on the cell type of a primary serving cell for a TDD-FDD carrier aggregation and an FDD-TDD carrier aggregation.

Base station, terminal, and wireless communication system
12200554 · 2025-01-14 · ·

A base station includes a receiver and a transmitter. The receiver configured to receive, from a terminal, a handover destination notification including first identification information and second identification information, the first identification information being information for identifying a first base station as a handover destination determined by the terminal, the second identification information being information for identifying a preamble to be transmitted by the terminal to the first base station. The transmitter configured to transmit an advance notification including third identification information and the second identification information to the first base station, the third identification information being information for identifying the terminal.

Multiple transmission schemes in wireless communication

Methods, systems, and devices for multiple transmission schemes in wireless communication are described. In one aspect, a wireless communication method is disclosed to include: transmitting, by a first communication device, at least one of i) a repetition mode of data transmissions to be sent to a second communication device, ii) a mapping between N indicated beams and all scheduled transmissions of the data, or iii) a RV (Redundant Version) relationship among the all scheduled transmissions of the data, wherein the transmitting is based on at least one of the N indicated beam(s), a DMRS (Demodulation Reference Signals) port indication, or K time domain occasions, N and K being non-negative integers.

METHOD AND SYSTEM OF A TIME-FREQUENCY DIVISION MULTIPLEXED RECEIVER
20240405907 · 2024-12-05 ·

A method for extracting a plurality of data streams from a time-frequency division multiplexed (TFDM) signal includes determining a plurality of sub-channels of the TFDM signal, where each of the plurality of sub-channels has a respective one of a plurality of frequency ranges. The method also includes down-converting, based on the plurality of frequency ranges, the TFDM signal into a plurality of down-converted signals, where each down-converted signal corresponds to a respective one of the plurality of sub-channels. The method also includes extracting the plurality of data streams from a respective one of the plurality of down-converted signals.