Intel Corporation

Christopher Hull

Stefano Pellerano

Yanjie J Wang

Jong Seok Park

Woorim Shin

Steven Callender

Huimin Chen

Thomas A Tetzlaff

Brent R Carlton

Peter Sagazio

Abhishek Agrawal

Pankaj Goyal

Mustafijur Rahman

Ritesh Bhat

Ka Chun Kwok

Jing Zhu

Nageen Himayat

Shilpa Talwar

Hosein Nikopour

Oner Orhan

Farhana Sheikh

Russell John Fagg

Dandan Li

Ehsan Aryafar

Navid Naderializadeh

Chun Lee

Shreyas Sen

Various aspects of this disclosure provide a receiver. The receiver may include a down-converter configured to down-convert a received communication signal at a predefined carrier frequency, with a reference signal received from a reference signal generator, and a processor configured to perform a signal quality detection to identify a signal quality metric of the received communication signal at the predefined carrier frequency, and to provide a frequency adjusting signal to the reference signal generator to change the frequency of the reference signal based on the performed signal quality detection to identify the signal quality metric of the received communication signal at the predefined carrier frequency.

Closed-loop baud rate carrier and carrier frequency tuning for wireless chip-to-chip interface

Various aspects provide a transceiver and a communication device including the transceiver. In an example, the transceiver includes an amplifier circuit including an amplifier stage with an adjustable degeneration component, the amplifier stage configured to amplify a received input signal with an adjustable gain, an adjustable feedback component coupled to the amplifier stage; and a controller coupled to the amplifier stage and to the adjustable feedback component and configured to adjust the adjustable feedback component based on an adjustment of the adjustable degeneration component.

Communication device

A communication device includes a power amplifier that generates power signals according to one or more operating bands of communication data, with the amplitude being driven and generated in output stages of the power amplifier. The final stage can include an output passive network that suppresses suppress an amplitude modulation-to-phase modulation (AM-PM) distortion. During a back-off power mode a bias of a capacitive unit of the output power network component can be adjusted to minimize an overall capacitance variation. An output passive network can further generate a flat-phase response between dual resonances of operation.

Ultra compact multi-band transmitter with robust AM-PM distortion self-suppression techniques

Methods, apparatus, and computer-readable media are described to use multi-finger beamforming for multimeter wave communications. A base station associates with first and second user equipment. Weight sum rates are determined for the user equipment. Transmissions are scheduled to the user equipment based on the weight sum rates. Data is encoded for the first user equipment and transmitted based on the schedule. Data is encoded for the second user equipment and transmitted based on the schedule. The transmissions are multiplexed in the power domain.

Non-orthogonal multiple-access and multi-finger beamforming

A biasing scheme for a frequency multiplication circuit, and transceiver using LO signals provided by the frequency multiplication circuit are described. A frequency doubler is cascaded with a mixer to provide a mm-wave oscillator signal. The combination provides a frequency triple that of the LO frequency supplied to the frequency doubler from a PLL. A small-sized replica of the frequency doubler is used to determine biasing of transconductance devices of the frequency doubler. A voltage output of the replica is amplified and the difference between the output and a reference voltage is supplied as feedback to the control terminal of the transconductance devices to bias the transconductance devices to near threshold. The biasing is replicated at the frequency doubler to compensate for PVT variations. A PTAT current source tied to the output of the replica regulates an average output current of the frequency multiplication circuit.

Biasing scheme for constant regulated local oscillator in mm-wave tripler

A communication device includes a power amplifier that generates power signals according to one or more operating bands of communication data, with the amplitude being driven and generated in output stages of the power amplifier. The final stage can include an output passive network that suppresses suppress an amplitude modulation-to-phase modulation (AM-PM) distortion. During a back-off power mode a bias of a capacitive unit of the output power network component can be adjusted to minimize an overall capacitance variation. A output passive network can further generate a flat-phase response between dual resonances of operation.

A transmit receive switch (TRSW) system is disclosed. The system has a transmission line, a transformer based matching network, a shunt switch, an amplifier and circuitry. The transmission line is connected to an antenna port. The transformer based matching network is connected to the transmission line and has a first coil and a second coil, wherein the second coil is connected to the transmission line. The amplifier can be configured as a shunt switch when inactive. The shunt switch, including the amplifier configured as the shunt switch, can be connected to the first coil of the transformer based matching network. The circuitry is configured to cause the shunt switch to be ON during an inactive mode and create a short across the first coil. Combined, the length of transmission line needed to complete the impedance transformation is reduced, thereby lowering the overall insertion loss of the transmit/receive switch.

Low loss transmitter receiver switch with transformer matching network

Radar circuitry can include an isolator and a mixer. The isolator can isolate a transmission signal path and a reception signal path from each other, and generate a mixing (e.g. oscillation) signal based on a transmission signal. The isolator can be coupled to the mixer such that the drive signal drives the mixer (e.g. serves as the local oscillation signal of the mixer). The mixer mixes a received signal and the drive signal to generate a converted signal (e.g. a down-converted signal). The isolator can be a hybrid transformer or electrically balanced duplexer.

Radar systems and methods having isolator driven mixer

Systems, methods, and circuitries are provided for a local oscillator (LO) signal distribution. An exemplary LO distribution network includes a common LO buffer configured to buffer an LO signal, a receive (RX) LO buffer, and a transmit (TX) mixer in a cascaded arrangement. The RX LO buffer is configured to receive the LO signal and buffer the LO signal and to provide the LO signal to an RX mixer. A first LO signal line and a second LO signal line are configured to conduct the LO signal from the common LO buffer to the RX LO buffer. The RX LO buffer is coupled to the first LO signal line and the second LO signal line. The TX mixer is also coupled to the first LO signal line and the second LO signal line.

Cascaded transmit and receive local oscillator distribution network

Ultra compact multi-band transmitted with robust AM-PM distortion self-suppression techniques

A communication device includes a power amplifier that generates power signals according to one or more operating bands of communication data, with the amplitude being driven and generated in output stages of the power amplifier. The final stage can include an output passive network that suppresses an amplitude modulation-to-phase modulation (AM-PM) distortion. During a back-off power mode a bias of a capacitive unit of the output power network component can be adjusted to minimize an overall capacitance variation. The output passive network can further generate a flat-phase response between dual resonances of operation.

A receiver system includes a blocker detector circuit configured to receive a radio frequency (RF) input signal and detect an existence of a blocker therein, and further configured to output a blocker detection signal indicative of the existence of the blocker. The receiver system further includes a configurable receiver circuit configured to receive the RF input signal and the blocker detection signal, and selectively configure the configurable receiver circuit between a first mode wherein the configurable receiver circuit exhibits first linearity characteristics, and a second mode wherein the configurable receiver circuit exhibits second, different linearity characteristics based on the blocker detection signal.

Real-time blocker-adaptive broadband wireless receiver for low-power operation under co-existence in 5G and beyond

Embodiments of a multi-transceiver wireless communication device and methods for adaptive multi-band communication are generally described herein. In some embodiments, the multi-transceiver wireless communication device is configurable for half-duplex operation and for asymmetrical full-duplex operation on two non-interfering channels. In some embodiments, a contention-based channel access procedure may be performed to attempt to gain access to both a primary channel and an auxiliary channel. A primary transceiver and an auxiliary transceiver may be configured for asymmetrical full-duplex operation when access to both the primary channel and the auxiliary channel is granted. One of the transceivers may be configured for half-duplex operation when access to only one of the channels is granted. During asymmetrical full-duplex operation, the primary transceiver may be configured to communicate data packets using the primary channel, and the auxiliary transceiver may be configured to communicate control packets using an auxiliary channel.

Growing community of inventors

Portland, OR, United States of America

Christopher Hull