A circuit arrangement may include an analog-to-digital-converter (ADC) configured to convert an analog signal into a digitized signal having an ADC frequency, a decimation circuit configured to provide a first signal having a sampling frequency based on the digitized radio signal having the ADC frequency. The sampling frequency is smaller than the ADC frequency. The circuit arrangement may further include a timer circuit providing a second signal having a timer frequency and a timing control signal to control the timing of the decimation circuit, and a difference determination circuit configured to determine a phase difference between the second signal and the first signal.

A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a service network. The controller receives a measurement configuration and a Discontinuous Reception (DRX) configuration from the service network via the wireless transceiver, extends a measurement period indicated by the measurement configuration, and performs a cell measurement via the wireless transceiver in the extended measurement period.

A transmission control device includes an acquiring unit that acquires propagation delay time for each propagation path between a plurality of terminal devices and a plurality of transmitter stations; a selector that selects, based on the propagation delay time acquired by the acquiring unit, combinations of terminal devices having similar propagation delay differences from the plurality of the transmitter stations; and a controller that controls transmission timing of the plurality of the transmitter stations that transmit signals to the combinations of the terminal devices selected by the selector.

Method and apparatus for signal detection in dynamic channels with high carrier frequency offset are provided. A coherent detector and a non-coherent detector are operated in parallel on a block of samples of an input signal to determine respective time offset candidates of the input signal. The time offset candidate obtained from the non-coherent detector is used to determine a frequency offset candidate of the input signal.

An apparatus and method for detecting synchronization and signals using block data processing in a receiving system are provided. To process an input signal, a cumulative matrix is obtained from an input vector signal for each frame generated from the signal. A primary eigenvector is extracted from the cumulative matrix, and the maximum value of a correlation vector is calculated from the extracted primary eigenvector. A time delay is detected by comparing the calculated maximum value of the correlation vector with a first threshold value, and a delay correlation vector is calculated from the detected time delay. Finally, synchronization and signals are detected by comparing the calculated delay correlation vector with a second threshold value.

Monitoring and mass notification systems, such as fire alarm systems, for use in occupied structures, and more particularly to wireless monitoring and mass notification systems include wireless base units that can be modular in design. This allows horns, mini horns, strobes, and audio messaging modules (e.g., speakers) to be physically plugged into the wireless base unit creating a unit with the appearance of a single physical unit. Preferably standardized plugs are used. In some cases, visual and audio modules (i.e., notification devices) have their own battery pack or external power interface. Each wireless base unit can optionally function as a repeater if it has dual transceivers (master transceiver and slave transceiver).

For synchronizing user devices to the base station of a 5G or 6G network, the base station can transmit brief prepared signals at a pre-scheduled time and frequency. All of the user devices in the network can then synchronize simultaneously, using amplitude measurements with standard signal processing. The user devices can thereby avoid the complex and time-consuming measurements of prior art. This simplified synchronization procedure may be especially relevant for reduced-capability IoT devices. Examples are provided in which each user device can measure a ratio of amplitudes or energy values in sequential symbol-times as determined by the local user device clock, and compare to the expected ratio as determined by the base station clock. Any deviation in the ratio indicates a timing offset, which the user devices can then use to precisely synchronize the local clock.

Current methods for synchronizing user devices with the base station of a 5G/6G network require multiple exchanges with each user device, consuming limited resources. Disclosed herein are systems and methods for generating and then detecting precision-timing timestamp points. Importantly, the timestamp points can be used by all of the user devices simultaneously, instead of just one at a time. In a first embodiment, the timestamp includes three resource elements with a first modulation (amplitude or phase) in the first and third resource elements, and a different modulation in the middle one. In a second embodiment, the base station transmits a first signal in the first half of a single resource element, and a different signal modulation in the second half. In either case, the user devices can receive the signal, determine the time of interface between the modulation states, and thereby determine the symbol boundaries according to the base station.

A method of a terminal, according to an exemplary embodiment of the present disclosure, may comprise: receiving, from a base station, radio resource control (RRC) signaling including measurement gap configuration information (MeasGapConfig) including gap setup information (gapSAT) of synchronization signal blocks (SSBs); obtaining transmission position information of first SSBs and second SSBs transmitted in different positions based on gap configuration (GapConfig) of the gap setup information; receiving the first SSBs and the second SSBs through different beams from the base station based on the obtained transmission position information; and measuring reception powers of the received first SSBs and second SSBs.

A base station can cause a multitude of user devices in a network to be synchronized with the base station's clock using an ultra-lean low-complexity procedure in 5G or 6G. On a predetermined interval, the base station can transmit a timing signal in the guard-space of a predetermined resource element. The timing signal is a 180-degree phase reversal of the cyclic prefix centered in the guard-space. Each user device can receive the timing signal, determine how far the received timestamp point is from the middle of the guard-space (as viewed by the user device), and thereby determine a timing error between the user device clock and the base station clock, and correct the user device clock accordingly. In addition, the user device can average the timing adjustments over a number of instances, thereby determining a frequency offset if the average differs significantly from zero, and thereby adjust the clock frequency.