A filter circuit includes: a division unit that divides an input signal and adds, to a tail end of a division block, of head data of the next division block, to generate an input block; a plurality of signal processing units that perform filtering of a feedback type on input blocks to generate output samples, and generate and output blocks; and a coupling unit that couples the output blocks. The signal processing unit outputs first output samples generated until a switching timing, and outputs second output samples generated by the signal processing unit after the timing. The switching timing is a timing within a period corresponding to the duplicated data, at which timing a difference between a first signal generated by the signal processing unit and a second signal generated by the signal processing unit is less than or equal to a threshold consecutively for a second data length.

A transmitter for generating a radio frequency, RF, transmit signal is provided. The transmitter includes signal generation circuitry configured to generate, based on a sequence of first control words each indicating a respective frequency shift with respect to a target frequency of the RF transmit signal, a RF carrier signal with sequentially varying frequency over time in order to frequency spread the RF transmit signal. Further, the transmitter includes modulation circuitry configured to generate the RF transmit signal by modulating the RF carrier signal with a modulation control signal. The transmitter additionally includes modification circuitry configured to generate the modulation control signal by modifying, based on the sequence of first control words, phase information of a baseband signal bearing information to be transmitted or phase information of a signal derived from the baseband signal in order to frequency de-spread the RF transmit signal.

The present disclosure provides a communication chip, which is applied to a terminal device and includes a system control module, a radio frequency signal processing module, a first baseband processing module, and a second baseband processing module, where the system control module is respectively connected to the radio frequency signal processing module, the first baseband processing module and the second baseband processing module; the radio frequency signal processing module is further respectively connected to the first baseband processing module and the second baseband processing module.

The present disclosure provides a communication chip, which is applied to a terminal device and includes a system control module, a radio frequency signal processing module, a first baseband processing module, and a second baseband processing module, where the system control module is respectively connected to the radio frequency signal processing module, the first baseband processing module and the second baseband processing module; the radio frequency signal processing module is further respectively connected to the first baseband processing module and the second baseband processing module.

An electronic device according to an embodiment of the disclosure includes a housing that includes a first plate, a second plate facing away from the first plate, and a side member surrounding a space between the first plate and the second plate and including a first conductive region and a second conductive region electrically separated from the first conductive region, a wireless communication circuitry that is disposed within the space, transmits/receives a first signal in a first frequency band ranging from 1.4 GHz to 6 GHz by using the first conductive region, and transmits/receives a second signal in a second frequency band ranging from 0.6 GHz to 1.4 GHz by using the second conductive region, and a GNSS receiver circuitry that is disposed within the space, receives a third signal in a third frequency band ranging from 1559 MHz to 1610 MHz by using the first conductive region, and receives a fourth signal in a fourth frequency band ranging from 1164 MHz to 1189 MHz by using the second conductive region. Moreover, various embodiment found through the present disclosure are possible.

A base station configured to perform a method for self-interference cancelation (SIC) is provided. The method includes transmitting, by a transceiver configured to transmit an uplink channel and a downlink channel concurrently, one or more signals, the transceiver coupled to, or including, a first number of transmit antennas and a second number of receive antennas. The method also includes, for at least one receive antenna of the second number of receive antennas, applying a forward path model including a non-linear component corresponding to a transmit path in the transceiver, and applying an equalizer function to a first signal to be transmitted by at least one transmit antenna of the first number of transmit antennas determine a self-interference (SI) estimate; and subtracting, in SIC circuitry, the SI estimate from the signal received via at least one receive antenna of the second number of receive antennas to obtain an residual signal.

A base station configured to perform a method for self-interference cancelation (SIC) is provided. The method includes transmitting, by a transceiver configured to transmit an uplink channel and a downlink channel concurrently, one or more signals, the transceiver coupled to, or including, a first number of transmit antennas and a second number of receive antennas. The method also includes, for at least one receive antenna of the second number of receive antennas, applying a forward path model including a non-linear component corresponding to a transmit path in the transceiver, and applying an equalizer function to a first signal to be transmitted by at least one transmit antenna of the first number of transmit antennas determine a self-interference (SI) estimate; and subtracting, in SIC circuitry, the SI estimate from the signal received via at least one receive antenna of the second number of receive antennas to obtain an residual signal.

A transceiver circuit is disclosed. The transceiver circuit includes an antenna, a receiver RF chain configured to receive a receiver RF signal from the antenna, a transmitter RF chain configured to transmit a transmitter RF signal to the antenna, and a controller configured to cause the receiver RF chain to receive a first distance estimate between the antenna and another transceiver circuit, to calculate a second distance estimate between the antenna and the other transceiver circuit, and to determine a range estimate between the antenna and the other transceiver circuit based on the first distance estimate and the second distance estimate.

A transceiver circuit is disclosed. The transceiver circuit includes an antenna, a receiver RF chain configured to receive a receiver RF signal from the antenna, a transmitter RF chain configured to transmit a transmitter RF signal to the antenna, and a controller configured to cause the receiver RF chain to receive a first distance estimate between the antenna and another transceiver circuit, to calculate a second distance estimate between the antenna and the other transceiver circuit, and to determine a range estimate between the antenna and the other transceiver circuit based on the first distance estimate and the second distance estimate.

A transceiver circuit is disclosed. The transceiver circuit includes an antenna, a receiver RF chain configured to receive a receiver RF signal from the antenna, a transmitter RF chain configured to transmit a transmitter RF signal to the antenna, and a controller configured to cause the receiver RF chain to receive a first distance estimate between the antenna and another transceiver circuit, to calculate a second distance estimate between the antenna and the other transceiver circuit, and to determine a range estimate between the antenna and the other transceiver circuit based on the first distance estimate and the second distance estimate.