An electronic device is provided. The electronic device includes an antenna, a wireless communication circuit, and a diplexer. The diplexer includes a first port, and second and third ports connected to the wireless communication circuit, a low pass filter (LPF) configured to filter an RF signal of a low frequency band from a signal received from one of the first port and the second port and output same to the other one of the first port and the second port, and a high pass filter (HPF) configured to filter an RF signal of a high frequency band from a signal received from one of the first port and the third port and output same to the other one of the first port and the third port.

An active electronic device that enables bidirectional communication over a single antenna or path is disclosed. The device may be characterized by a forward path (from an input to an antenna port) offering high gain, and a reverse path (to a receiver port) that can be configured as an finite impulse response (“FIR”) filter. An amplifier of the device is disclosed, the amplifier allowing for tuning of output resistance using passive mixers.

An active electronic device that enables bidirectional communication over a single antenna or path is disclosed. The device may be characterized by a forward path (from an input to an antenna port) offering high gain, and a reverse path (to a receiver port) that can be configured as an finite impulse response (“FIR”) filter. An amplifier of the device is disclosed, the amplifier allowing for tuning of output resistance using passive mixers.

A wireless communication system having a dual-band coexistence architecture is provided, and the system includes a processing circuit, a first transceiver, a first front-end module, a first switch circuit, a first filter, a second filter, a second switch circuit, a first antenna, a second transceiver, a second front-end module, a third switch circuit, a third filter, a fourth filter, a fourth switch circuit and a second antenna. The first filter and the second filter use a combination of a wideband filter and a narrowband filter, and the fourth filter and the third filter also use a combination of a wideband filter and a narrowband filter, so as to achieve the dual-band coexistence architecture.

A wireless communication system having a dual-band coexistence architecture is provided, and the system includes a processing circuit, a first transceiver, a first front-end module, a first switch circuit, a first filter, a second filter, a second switch circuit, a first antenna, a second transceiver, a second front-end module, a third switch circuit, a third filter, a fourth filter, a fourth switch circuit and a second antenna. The first filter and the second filter use a combination of a wideband filter and a narrowband filter, and the fourth filter and the third filter also use a combination of a wideband filter and a narrowband filter, so as to achieve the dual-band coexistence architecture.

Embodiments of the present invention provide apparatus and methods for multi-link operations that include retransmission of data using different wireless links. The following discussion describes one such exemplary electronic system or computer system that can be used as a platform for implementing embodiments of the present invention. The multi-link device can be a multi-link wireless access point or a multi-link wireless station, for example. The multi-link device can operate multiple transceivers simultaneously to perform multi-link operations including retransmission using different wireless links. For example, the multi-link device can transmit an encrypted MPDU using a first wireless link, and retransmit the MPDU using a second wireless link by setting a MAC header of the MPDU according to a MAC address of the second wireless link, to advantageously enhance the performance, reliability, and efficiency of the wireless network.

Embodiments of the present invention provide apparatus and methods for multi-link operations that include retransmission of data using different wireless links. The following discussion describes one such exemplary electronic system or computer system that can be used as a platform for implementing embodiments of the present invention. The multi-link device can be a multi-link wireless access point or a multi-link wireless station, for example. The multi-link device can operate multiple transceivers simultaneously to perform multi-link operations including retransmission using different wireless links. For example, the multi-link device can transmit an encrypted MPDU using a first wireless link, and retransmit the MPDU using a second wireless link by setting a MAC header of the MPDU according to a MAC address of the second wireless link, to advantageously enhance the performance, reliability, and efficiency of the wireless network.

A system and method for mitigating self-interference in mmWave systems. A transceiver can include a mutual precoder controller that controls both an analog/RF beamforming circuit and a digital/BB beamforming circuit to prefer beams directed along paths in the local RF environment that minimize self-interference. In other cases, a transceiver can include one or more self-interference filters to internally mitigate self-interference.

The disclosure relates to a communication technique and a system for combining a 5G communication system with IoT technology to support a higher data rate after a 4G system. Based on 5G communication and IoT-related technologies, the disclosure may be applied to intelligent services such as smart homes, smart buildings, smart cities, smart or connected cars, healthcare, digital education, retail, and security and safety related services. The disclosure provides a method and apparatus that enable a communication device supporting full duplex to cancel the self-interference signal in the digital domain.

A UE includes an antenna for receiving a first reception signal for wireless LAN communication and a second reception signal for sidelink communication; a radio frequency (RF) front-end for processing the first reception signal and the second reception signal; a first transceiver for the wireless LAN communication, a second transceiver for the sidelink communication, and a processor operably coupled to the first transceiver and the second transceiver, the first reception signal is provided from a second UE to the RF front-end through the antenna, the second reception signal is provided from a third UE to the RF front-end through the antenna, the first reception signal provided to the RF front-end is provided to the first transceiver through a first electrical path, and the second reception signal provided to the RF front-end is provided to the second transceiver through a second electrical path.