Apple Inc.

Intel Corporation

Infineon Technologies Ag

Intel Deutschland Gmbh

Intel Mobile Communications Gmbh

Siemens Aktiengesellschaft

Appli Inc.

Bertram Gunzelmann

Zhibin Yu

Thorsten Clevorn

Zdravko Boos

Yeong-Sun Hwang

Jong-Kae Fwu

Markus Dominik Mueck

Herbert R Dawid

Sabine Roessel

Dietmar Wenzel

Bernhard Raaf

Nageen Himayat

Ingolf Karls

Carlos Horacio Aldana

Shilpa Talwar

Xiangyang Zhuang

Christian Drewes

Dave A Cavalcanti

Biljana Badic

Elmar Wagner

Harry G Skinner

Debabani Choudhury

Duncan Kitchin

Stefan Fechtel

Debdeep Chatterjee

Emily H Qi

Rui Huang

Bahareh Sadeghi

Andreas Menkhoff

Hassnaa Moustafa

Marcio Rogerio Juliato

Ana Lucia Pinheiro

Michael Glik

Rafael Misoczki

Tom Harel

Burkhard Becker

Jeffrey R Foerster

Hyung-Nam Choi

Jing Zhu

Hosein Nikopour

Yang-Seok Choi

Jerome Parron

Sudeep Manithara Vamanan

Matthias Sauer

Rajarajan Balraj

Tobias Scholand

Holger Neuhaus

Xiaofeng Wu

Arkadi Molev-Shteiman

Andre Janssen

Ramin Khayatzadeh

Berndt Pilgram

Nedim Muharemovic

Jianqiang Rao

Ansgar Scherb

Jan K Ellenbeck

Nir Tishbi

Stefan Meyer

Michael A Ruder

Dae Jung Yoon

Jonathan Kosloff

Christopher Stobart

Sebastian Mitelberg

Dario Sabella

Alfredo Bismuto

Martin Krueger

Juergen H Kreuchauf

Miltiadis Filippou

Stefan Herzinger

Domagoj Siprak

Kilian Roth

Birgit Breining

Francois Deparis

Michael Weber

Axel G Huebner

Robert Denk

Volker Christ

Markus Jordan

Martin Krüger

Qing Xu

Shashanka Totadamane Ramappa

Jean-Xavier Canonici

Kilian Peter Anton Roth

Josef Hausner

Christian Faber

Tudor Murgan

Victor Dias

Rajkumar Krishnaperumal

Thomas Esch

Andreas Leyk

Frank Lillie

Nirlesh Kumar Koshta

Tomas Sarmiento

Ulrich B&ouml;tzel

Kai Wu

Gerhard Linnenberg

Arjang Hessamian-Alinejad

Steven A Bowers

Pradeep C Pangi

Bernd Schaller

An electronic device may include wireless circuitry that conveys radio-frequency signals at frequencies greater than or equal to 100 GHz using first and second optical local oscillator (LO) signals generated by clocking circuitry. The clocking circuitry may include a first laser that generates the first optical LO signal and a second laser that generates the second optical LO signal. First and second self-injection locking loop paths may be coupled around the first and second lasers respectively. The first loop path may include a first mixer, an optical reference, and a second mixer. The second loop path may include a photodiode, the first mixer, and the optical reference. The photodiode may provide a radio-frequency signal to the mixers. The optical reference may include an optical delay line or resonator and may reduce phase noise of optical signals used to self-injection lock the first and second lasers.

Electronic devices with optical self-injection loops

An electronic device may include a photonics-based phased antenna array that conveys wireless signals at frequencies greater than 100 GHz. In a transmit mode, the array may transmit signals using the first and second optical signals. In a receive mode, the array may receive signals using the optical signals. In a passive mode, the array may reflect incident wireless signals as reflected signals. Photodiodes in the array may be controlled to exhibit output impedances that are mismatched with respect to input impedances of radiating elements in the array. Different mismatches can be used across the array or as a function of time to impart different phase and/or frequency shifts on the reflected signals. The phase shifts may be used to encode information into the reflected signals and/or to form a signal beam of the reflected signals.

Electronic devices with high frequency reflective antenna arrays

A controller may map user equipment (UE) devices in a wireless system to access points (AP) and reflective intelligent surfaces (RIS). The controller may generate a corresponding communications schedule based on the locations of the UE device(s), AP(s), and RIS(s) and based on current traffic demands. The controller may control the RIS(s), AP(s), and UE devices to implement the schedule. The schedule may divide the time, frequency, and/or spatial resources of the RIS(s) to meet the traffic demands of the UE devices using a space division multiple access scheme, a time-division multiple access scheme, a frequency-division multiple access scheme, and/or a distributed multiple-input and multiple output scheme. The schedule may be updated over time as needed. The RIS(s) may allow for a reduction in the number of AP(s) required to meet the dynamic demands of the UE devices, thereby minimizing deployment and operating costs.

Resource allocation for communication via reflective surfaces

The present application relates to devices and components including apparatus, systems, and methods for high-throughput, low-power signaling.

Communication devices and methods for high-throughput, low-power signaling

An electronic device may include clocking circuitry with primary and secondary lasers that generate first and second optical local oscillator (LO) signals. A phase-locked loop (PLL) may tune the secondary laser based to phase lock the first and second optical LO signals. A self-injection locking loop path may couple an output of the secondary laser to its input. The self-injection locking loop path may include a first mixer and a second mixer. The first mixer may generate a beat signal using the first and second optical LO signals. The second mixer may generate a self-injection locking signal based on the first optical LO signal and the beat signal. A delay line or optical resonator may iteratively self-inject the self-injection locking signal onto the secondary laser. This may serve to minimize phase noise and jitter of the optical LO signals.

Electronic devices with low phase noise frequency generation

A wireless system may include a central processor and an access point. The central processor may generate an optical signal on an optical fiber. The optical signal may include an optical local oscillator (LO) signal and one or more carriers. The central processor may modulate different combinations of transverse optical modes, orbital angular momentum, polarization, and/or carrier frequency of the optical signal to concurrently convey respective wireless data streams. The orthogonality of the transverse optical modes, orbital angular momentum, polarization, and carrier frequency may allow many wireless data streams to be modulated onto the optical signal and concurrently transmitted and propagated on the optical fiber independent of each other for transmission to one or more external devices.

Electronic devices with high frequency multimode communication capabilities

An electronic device may include an optical demultiplexer, optical combiners, optical paths between the demultiplexer and the combiners, modulators on the optical paths, and a symbol generator that generates a set of electrical OFDM symbols. The modulators may generate a set of optical OFDM symbols by mixing optical carriers with the electrical OFDM symbols. The combiners may generate an aggregate optical OFDM symbol from the optical OFDM symbols and may combine the aggregate optical OFDM symbol with an optical local oscillator signal. The aggregate optical OFDM symbol may exhibit a large bandwidth. The combiners may illuminate a photodiode, which produces current on an antenna resonating element that radiates a radio-frequency signal at frequencies greater than 100 GHz.

Electronic devices with high frequency symbol generation

An electronic device may include a receiver having a light source that provides an optical signal to an optical splitter. An optical combiner may be coupled to the optical splitter over a set of parallel optical paths. A phased antenna array may have a set of antennas disposed on the optical paths. Each antenna may include an optical modulator disposed on a respective one of the optical paths and an antenna resonating element coupled to the modulator. Incident radio-frequency signals may produce electrical signals on the antenna resonating elements. Optical phase shifters may provide optical phase shifts to the optical signal. The modulators may modulate the optical local oscillator signal using the electrical signals. The optical combiner may generate a combined signal by combining modulated optical signals from the optical paths. A demodulator may recover wireless data from the radio-frequency signals using the combined signal.

Receiver with photonic antenna array

A communication system may include an access point (AP), a user equipment (UE), and a communication path between the AP and the UE having a series of reconfigurable intelligent surfaces (RIS's). Each RIS may have a first beam pointing to a previous node and a second beam pointing to a next node in the communication path. Beams of routing RIS's and a beam from an end user RIS towards a last routing RIS may be set during calibration. The UE may perform beam discovery with the end user RIS. The UE and the AP may convey wireless data via reflections off each of the RIS's in the communication path. The beam of the end user RIS may be updated to track the UE device while the other the beams remain fixed. The beams may be calibrated using retroreflection and beam variation for each pair of RIS's up the communication path.

Communication via multiple reconfigurable intelligent surfaces

An electronic device may include wireless circuitry clocked using an electro-optical phase-locked loop (OPLL) having primary and secondary lasers. A frequency-locked loop (FLL) path and a phase-locked loop (PLL) path may couple an output of the secondary laser to its input. A photodiode may generate a photodiode signal based on the laser output. A digital-to-time converter (DTC) may generate a reference signal. The FLL path may coarsely tune the secondary laser based on the photodiode signal until the secondary laser is frequency locked. Then, the PLL path may finely tune the secondary laser based on the reference signal and the photodiode signal until the phase of the secondary laser is locked to the primary laser. The photodiode signal may be subsampled on the PLL path. This may allow the OPLL to generate optical local oscillator signals with minimal jitter and phase noise.

Electronic devices having electro-optical phase-locked loops

A first device may generate optical signals of different polarizations. Photodiodes may use the optical signals to transmit wireless signals at different polarizations and at a frequency greater than 100 GHz using the optical signals. A second device may receive the wireless signals and may convert the wireless signals into optical signals. A Stokes vector receiver on the second device may generate Stokes vectors based on the optical signals. Control circuitry on the second device may use the Stokes vectors generated for a series of training data in the wireless signals to generate a rotation matrix that characterizes polarization rotation between the first and second devices. The control circuitry may multiply wireless data in subsequently received wireless signals by the rotation matrix to mitigate the polarization rotation and other transmission impairments while using minimal resources.

Electronic devices with high frequency polarization optimization

A communication system may an optical signal generator and a signal path. The generator may generate one or more optical local oscillator (LO) signals and an optical frequency comb. Optical paths and an optical demultiplexer may distribute the optical LO signal(s) and the frequency comb to photodiodes in one or more access points. The photodiodes may be coupled to antenna radiating elements. The optical paths may illuminate each photodiode using a signal pair that includes one of the optical LO signals and one of the carriers from the frequency comb. The photodiodes may convey wireless signals using the antenna radiating elements at frequencies given by the differences in frequency between the signals in the signal pairs. The radiating elements may concurrently convey the wireless signals with different external devices at different frequencies, with different devices at the same frequency, and/or with the same device at the same frequency.

Electronic devices with high frequency multiplexing capabilities

An electronic device may include an antenna that conveys wireless signals at frequencies greater than 100 GHz. The antenna may include a radiating element coupled to a uni-travelling-carrier photodiode (UTC PD). An optical path may illuminate the UTC PD using a first optical local oscillator (LO) signal and a second optical LO signal. An optical phase shift may be applied to the first optical LO signal. A Mach-Zehnder modulator (MZM) may be interposed on the optical path. During signal transmission, the MZM may modulate wireless data onto the second optical LO signal while control circuitry applies a first bias voltage to the UTC PD. During signal reception, the control circuitry may apply a second bias voltage to the UTC PD that configures the UTC PD to convert received wireless signals into intermediate frequency signals and/or optical signals.

Electronic devices with high frequency wireless communication capabilities

A communication device comprises a receiver including at least two receive antennas and configured to receive at least one reference signal of a plurality of reference signals, each reference signal being transmitted from at least one base station at a predefined reference signal transmission time; a controller configured to switch between at least two receive configurations of the at least two antennas during a reception period of the at least one reference signal; and a signal quality determiner configured to determine a parameter indicative of a first signal quality of the received reference signal for each receive configuration.

Methods of frequency domain intra-orthogonal frequency-division multiplexing (OFDM) symbol multi Rx-beam measurement and dynamic Rx beam sweeping

Growing community of inventors

Koenigsbrunn, Germany

Bertram Gunzelmann