Patent Description:
Some devices, for example, radar devices and/or wireless communication devices, may include a plurality of Physical Layer (PHY) chains, which may communicate Radio Frequency (RF) signals via a plurality of antennas.

The PHY chains may include one or more elements and/or complements, which may be operated based on a Local oscillator (LO) signal.

<CIT> discloses a method of reading a transponder population including a plurality of electronic transponders, which includes the steps of energizing the transponders with an energizing signal and causing all the transponders to reply to the energizing signal with respective identification code data. A reader reads the respective identification code data originating from one transponder of the plurality of transponders at a time. Immediately after a transponder of the plurality of transponders has been read, an acknowledgement signal is transmitted from the reader setting a resetable flag (<NUM>) in the transponder for an indefinite period. The set flag is utilized to inhibit the transponder from responding to the energizing signal, as long as the flag is set and to cause the transponder to wait for and to react to a reset signal to reset the flag and to revert to an active mode wherein it automatically responds to the energizing signal.

<CIT> discloses a transmitter circuit for transmitting a sine wave modulated with digital data, where the sine wave includes a clock signal, and a receiver circuit for demodulating the transmitted sine wave, where the receiver circuit extracts the clock signal and the digital data from the sine wave. The transmitter circuit includes digital logic components that allows the transmitted sine wave to include at least one bit per cycle of the sine wave, and the receiver circuit includes digital logic components that allows the clock signal and the digital data to be extracted from the sine wave.

For simplicity and clarity of illustration, elements shown in the figures have not necessarily been drawn to scale. For example, the dimensions of some of the elements may be exaggerated relative to other elements for clarity of presentation. Furthermore, reference numerals may be repeated among the figures to indicate corresponding or analogous elements.

In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of some embodiments. However, it will be understood by persons of ordinary skill in the art that some embodiments may be practiced without these specific details. In other instances, well-known methods, procedures, components, units and/or circuits have not been described in detail so as not to obscure the discussion.

Discussions herein utilizing terms such as, for example, "processing", "computing", "calculating", "determining", "establishing", "analyzing", "checking", or the like, may refer to operation(s) and/or process(es) of a computer, a computing platform, a computing system, or other electronic computing device, that manipulate and/or transform data represented as physical (e.g., electronic) quantities within the computer's registers and/or memories into other data similarly represented as physical quantities within the computer's registers and/or memories or other information storage medium that may store instructions to perform operations and/or processes.

The terms "plurality" and "a plurality", as used herein, include, for example, "multiple" or "two or more". For example, "a plurality of items" includes two or more items.

References to "one embodiment", "an embodiment", "demonstrative embodiment", "various embodiments" etc., indicate that the embodiment(s) so described may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes the particular feature, structure, or characteristic. Further, repeated use of the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may.

As used herein, unless otherwise specified the use of the ordinal adjectives "first", "second", "third" etc., to describe a common object, merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.

Some embodiments may be used in conjunction with various devices and systems, for example, a radar sensor, a radar device, a radar system, a vehicle, a vehicular system, an autonomous vehicular system, a vehicular communication system, a vehicular device, a sensor device, a wireless communication device, a User Equipment (UE), a Mobile Device (MD), a wireless station (STA), a Personal Computer (PC), a desktop computer, a mobile computer, a laptop computer, a notebook computer, a tablet computer, a handheld computer, a sensor device, an Internet of Things (IoT) device, a wearable device, a handheld device, a Personal Digital Assistant (PDA) device, a handheld PDA device, a non-vehicular device, a mobile or portable device, a consumer device, a non-mobile or non-portable device, a wireless communication station, a wireless Access Point (AP), a wired or wireless router, a wired or wireless modem, a video device, an audio device, an audio-video (A/V) device, a wired or wireless network, a wireless area network, a Wireless Video Area Network (WVAN), a Local Area Network (LAN), a Wireless LAN (WLAN), a Personal Area Network (PAN), a Wireless PAN (WPAN), and the like.

Some embodiments may be used in conjunction with Radio Frequency (RF) systems, radar systems, vehicular radar systems, detection systems, wireless communication systems, and/or any other systems.

Some embodiments may be used in conjunction with devices and/or networks operating in accordance with existing IEEE <NUM> standards (including IEEE <NUM>-<NUM> (IEEE <NUM>-<NUM>, IEEE Standard for Information technology-- Telecommunications and information exchange between systems Local and metropolitan area networks--Specific requirements Part <NUM>: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, December <NUM>, <NUM>), and/or future versions and/or derivatives thereof, devices and/or networks operating in accordance with existing cellular specifications and/or protocols, e.g., 3rd Generation Partnership Project (3GPP), 3GPP Long Term Evolution (LTE) and/or future versions and/or derivatives thereof, units and/or devices which are part of the above networks, and the like.

Some embodiments may be used in conjunction with one way and/or two-way radio communication systems, cellular radio-telephone communication systems, a mobile phone, a cellular telephone, a wireless telephone, a Personal Communication Systems (PCS) device, a PDA device which incorporates a wireless communication device, a mobile or portable Global Positioning System (GPS) device, a device which incorporates a GPS receiver or transceiver or chip, a device which incorporates an RFID element or chip, a Multiple Input Multiple Output (MIMO) transceiver or device, a Single Input Multiple Output (SIMO) transceiver or device, a Multiple Input Single Output (MISO) transceiver or device, a device having one or more internal antennas and/or external antennas, Digital Video Broadcast (DVB) devices or systems, multistandard radio devices or systems, a wired or wireless handheld device, e.g., a Smartphone, a Wireless Application Protocol (WAP) device, or the like.

Some embodiments may be used in conjunction with one or more types of wireless communication signals and/or systems, for example, Radio Frequency (RF), Infra-Red (IR), Frequency-Division Multiplexing (FDM), Orthogonal FDM (OFDM), Orthogonal Frequency-Division Multiple Access (OFDMA), Spatial Divisional Multiple Access (SDMA), FDM Time-Division Multiplexing (TDM), Time-Division Multiple Access (TDMA), Multi-User MIMO (MU-MIMO), Extended TDMA (E-TDMA), General Packet Radio Service (GPRS), extended GPRS, Code-Division Multiple Access (CDMA), Wideband CDMA (WCDMA), CDMA <NUM>, single-carrier CDMA, multi-carrier CDMA, Multi-Carrier Modulation (MDM), Discrete Multi-Tone (DMT), Bluetooth®, Global Positioning System (GPS), Wi-Fi, Wi-Max, ZigBee™, Ultra-Wideband (UWB), Global System for Mobile communication (GSM), <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, Fifth Generation (<NUM>) mobile networks, 3GPP, Long Term Evolution (LTE), LTE advanced, Enhanced Data rates for GSM Evolution (EDGE), or the like. Other embodiments may be used in various other devices, systems and/or networks.

The term "wireless device", as used herein, includes, for example, a device capable of wireless communication, a communication device capable of wireless communication, a communication station capable of wireless communication, a portable or non-portable device capable of wireless communication, or the like. In some demonstrative embodiments, a wireless device may be or may include a peripheral that is integrated with a computer, or a peripheral that is attached to a computer. In some demonstrative embodiments, the term "wireless device" may optionally include a wireless service.

The term "communicating" as used herein with respect to a communication signal includes transmitting the communication signal and/or receiving the communication signal. For example, a communication unit, which is capable of communicating a communication signal, may include a transmitter to transmit the communication signal to at least one other communication unit, and/or a communication receiver to receive the communication signal from at least one other communication unit. The verb communicating may be used to refer to the action of transmitting or the action of receiving. In one example, the phrase "communicating a signal" may refer to the action of transmitting the signal by a first device, and may not necessarily include the action of receiving the signal by a second device. In another example, the phrase "communicating a signal" may refer to the action of receiving the signal by a first device, and may not necessarily include the action of transmitting the signal by a second device.

Some demonstrative embodiments may be used in conjunction with an RF frequency in a frequency band having a starting frequency above <NUM> Gigahertz (GHz), for example, a frequency band having a starting frequency between <NUM> and <NUM>. For example, some demonstrative embodiments may be used in conjunction with an RF frequency having a starting frequency above <NUM>, for example, above <NUM>, e.g., above <NUM>. For example, some demonstrative embodiments may be used in conjunction with an automotive radar frequency band, e.g., a frequency band between <NUM> and <NUM>. For example, some demonstrative embodiments may be used in conjunction with wireless communication frequency band, for example, a wireless communication network communicating over a frequency band of <NUM>, <NUM>, and/or <NUM>-<NUM>, an Extremely High Frequency (EHF) band (the millimeter wave (mmWave) frequency band), e.g., a frequency band within the frequency band of between <NUM> and <NUM>, e.g., a frequency band above <NUM>, a WLAN frequency band, a WPAN frequency band, and the like. However, other embodiments may be implemented utilizing any other suitable frequency bands, for example, a frequency band above <NUM>, a frequency band of <NUM>, a sub Terahertz (Thz) band, a THz band, and/or any other frequency band.

As used herein, the term "circuitry" may refer to, be part of, or include, an Application Specific Integrated Circuit (ASIC), an integrated circuit, an electronic circuit, a processor (shared, dedicated, or group), and/or memory (shared, dedicated, or group), that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality.

The term "logic" may refer, for example, to computing logic embedded in circuitry of a computing apparatus and/or computing logic stored in a memory of a computing apparatus. For example, the logic may be accessible by a processor of the computing apparatus to execute the computing logic to perform computing functions and/or operations. In one example, logic may be embedded in various types of memory and/or firmware, e.g., silicon blocks of various chips and/or processors. Logic may be included in, and/or implemented as part of, various circuitry, e.g., radio circuitry, receiver circuitry, control circuitry, transmitter circuitry, transceiver circuitry, processor circuitry, and/or the like. In one example, logic may be embedded in volatile memory and/or non-volatile memory, including random access memory, read only memory, programmable memory, magnetic memory, flash memory, persistent memory, and/or the like. Logic may be executed by one or more processors using memory, e.g., registers, buffers, stacks, and the like, coupled to the one or more processors, e.g., as necessary to execute the logic.

The term "antenna", as used herein, may include any suitable configuration, structure and/or arrangement of one or more antenna elements, components, units, assemblies and/or arrays. In some embodiments, the antenna may implement transmit and receive functionalities using separate and/or different transmit antenna elements and receive antenna elements. In some embodiments, the antenna may implement transmit and receive functionalities using common and/or integrated transmit/receive elements. The antenna may include, for example, a phased array antenna, a single element antenna, a set of switched beam antennas, and/or the like.

Some demonstrative embodiments are described herein with respect to RF signals, e.g., RF radar signals, and/or RF wireless communication signals. However, other embodiments may be implemented with respect to any other wireless signals, wireless communication signals, communication scheme, network, standard and/or protocol.

Reference is now made to <FIG>, which schematically illustrates a block diagram of a system <NUM>, in accordance with some demonstrative embodiments.

In some demonstrative embodiments, system <NUM> may include at least one device <NUM>, e.g., as described below.

In some demonstrative embodiments, device <NUM> may include a radar device. For example, device <NUM> may include a radar detecting device, a radar sensing device, a radar sensor, or the like, e.g., as described below.

In some demonstrative embodiments, device <NUM> may include a Multiple Input Multiple Output (MIMO) radar, e.g., as described below.

In other embodiments, device <NUM> may include any other type of radar, e.g., as described below.

In some demonstrative embodiments, device <NUM> may be configured to detect, and/or sense, one or more objects, which are located in a vicinity, e.g., a far vicinity and/or a near vicinity, to radar <NUM>, and to provide one or more parameters, attributes, and/or information with respect to the objects.

In some demonstrative embodiments, device <NUM> may be implemented, for example, as part of a vehicular system.

In some demonstrative embodiments, the vehicular system may include, for example, an autonomous vehicle system, an automated driving system, a driver assistance and/or support system, and/or the like.

In some demonstrative embodiments, system <NUM> may include a vehicular system including a vehicle <NUM>, e.g., as described below.

In some demonstrative embodiments, one or more elements and/or components of device <NUM> may be implemented and/or mounted in vehicle <NUM>.

In some demonstrative embodiments, device <NUM> may be configured to detect, and/or sense, one or more objects, which are located in a vicinity, e.g., a far vicinity and/or a near vicinity, of the vehicle <NUM>, and to provide one or more parameters, attributes, and/or information with respect to the objects.

In some demonstrative embodiments, the objects may include other vehicles, pedestrians, traffic signs, traffic lights, roads and/or the like.

In some demonstrative embodiments, the one or more parameters, attributes and/or information with respect to an object may include a range of the object from the vehicle <NUM>, an angle of the object with respect to the vehicle <NUM>, a location of the object with respect to the vehicle <NUM>, a relative speed of the object, and/or the like.

In some demonstrative embodiments, device <NUM> may include an information processor <NUM> configured to perform and/or to trigger, cause, instruct and/or control device <NUM> to perform one or more functionalities, operations and/or procedures, and/or to communicate one or more messages and/or transmissions.

In some demonstrative embodiments, information processor <NUM> may include, or may be implemented, partially or entirely, by circuitry and/or logic, e.g., one or more processors including circuitry and/or logic, memory circuitry and/or logic. Additionally or alternatively, one or more functionalities of information processor <NUM> may be implemented by logic, which may be executed by a machine and/or one or more processors, e.g., as described below.

In one example, information processor <NUM> may include at least one memory, e.g., coupled to the one or more processors, which may be configured, for example, to store, e.g., at least temporarily, at least some of the information processed by the one or more processors and/or circuitry, and/or which may be configured to store logic to be utilized by the processors and/or circuitry.

In other embodiments, information processor <NUM> may be implemented by one or more additional or alternative elements of device <NUM>.

In some demonstrative embodiments, information processor <NUM> may include a radar processor configured to process radar information of radar device <NUM> and/or to control one or more operations of radar device <NUM>, e.g., as described below.

In some demonstrative embodiments, information processor <NUM> may be configured to generate radar information, for example, based on radar signals communicated by device <NUM>, e.g., as described below.

In some demonstrative embodiments, vehicle <NUM> may include a vehicular controller <NUM> configured to control one or more functionalities, components, devices, systems and/or elements of vehicle <NUM>.

In some demonstrative embodiments, vehicular controller <NUM> may be configured to control one or more vehicular systems <NUM> of vehicle <NUM>, e.g., as described below.

In some demonstrative embodiments, vehicular systems <NUM> may include, for example, a steering system, a braking system, a driving system, and/or any other system of the vehicle <NUM>.

In some demonstrative embodiments, vehicular controller <NUM> may configured to control device <NUM>, and/or to process one or more parameters, attributes and/or information from information processor <NUM> and/or device <NUM>.

In some demonstrative embodiments, vehicular controller <NUM> may be configured, for example, to control the vehicular systems <NUM> of the vehicle, for example, based on the radar information from information processor <NUM>, and/or one or more other sensors of the vehicle, e.g., Light Detection and Ranging (LIDAR) sensors, camera sensors, and/or the like.

In one example, vehicular controller <NUM> may control the steering system, the braking system, and/or any other vehicular systems <NUM> of vehicle <NUM>, for example, based on the information from device <NUM>, e.g., based on one or more objects detected by device <NUM>.

In other embodiments, vehicular controller <NUM> may be configured to control any other additional or alternative functionalities of vehicle <NUM>.

In some demonstrative embodiments, device <NUM> may include or may be implemented as part of a wireless communication device configured to communicate with one or more other wireless communication devices in a wireless communication system.

In some demonstrative embodiments, system <NUM> may include a wireless communication system including the wireless communication device <NUM>.

In some demonstrative embodiments, information processor <NUM> may be configured to control and/or process one or more wireless communications to be transmitted by and/or received by device <NUM>. For example, information processor <NUM> may be configured to process information to be transmitted in a wireless communication transmission by device <NUM>, and/or to process information received by device <NUM> in one or more wireless communication transmissions.

In one example, device <NUM> may include, for example, a UE, an MD, a STA, an AP, a PC, a desktop computer, a mobile computer, a laptop computer, an Ultrabook™ computer, a notebook computer, a tablet computer, a server computer, a handheld computer, an Internet of Things (IoT) device, a sensor device, a handheld device, a wearable device, a PDA device, a handheld PDA device, an on-board device, an off-board device, a hybrid device (e.g., combining cellular phone functionalities with PDA device functionalities), a consumer device, a vehicular device, a non-vehicular device, a mobile or portable device, a non-mobile or non-portable device, a mobile phone, a cellular telephone, a PCS device, a PDA device which incorporates a wireless communication device, a mobile or portable GPS device, a DVB device, a relatively small computing device, a non-desktop computer, a "carry Small Live Large" (CSLL) device, an Ultra Mobile Device (UMD), an Ultra Mobile PC (UMPC), a Mobile Internet Device (MID), or the like.

In some demonstrative embodiments, device <NUM> may include, for example, one or more of a processor <NUM>, an input unit <NUM>, an output unit <NUM>, a memory unit <NUM>, and/or a storage unit <NUM>. Device <NUM> may optionally include other suitable hardware components and/or software components. In some demonstrative embodiments, some or all of the components of one or more of device <NUM> may be enclosed in a common housing or packaging, and may be interconnected or operably associated using one or more wired or wireless links. In other embodiments, components of one or more of device <NUM> may be distributed among multiple or separate devices.

In some demonstrative embodiments, processor <NUM> may include, for example, a Central Processing Unit (CPU), a Digital Signal Processor (DSP), one or more processor cores, a single-core processor, a dual-core processor, a multiple-core processor, a microprocessor, a host processor, a controller, a plurality of processors or controllers, a chip, a microchip, one or more circuits, circuitry, a logic unit, an Integrated Circuit (IC), an Application-Specific IC (ASIC), or any other suitable multi-purpose or specific processor or controller. Processor <NUM> executes instructions, for example, of an Operating System (OS), e.g., a vehicular operating system, of device <NUM> and/or of one or more suitable applications.

In some demonstrative embodiments, input unit <NUM> may include, for example, a touch-screen, a touch-pad, a track-ball, a stylus, a microphone, or other suitable pointing device or input device. Output unit <NUM> includes, for example, a monitor, a screen, a touch-screen, a flat panel display, a Light Emitting Diode (LED) display unit, a Liquid Crystal Display (LCD) display unit, one or more audio speakers or earphones, or other suitable output devices.

In some demonstrative embodiments, memory unit <NUM> includes, for example, a Random Access Memory (RAM), a Read Only Memory (ROM), a Dynamic RAM (DRAM), a Synchronous DRAM (SD-RAM), a flash memory, a volatile memory, a non-volatile memory, a cache memory, a buffer, a short term memory unit, a long term memory unit, or other suitable memory units. Storage unit <NUM>, for example, a hard disk drive, a floppy disk drive, a Compact Disk (CD) drive, a CD-ROM drive, a DVD drive, or other suitable removable or non-removable storage units. Memory unit <NUM> and/or storage unit <NUM>, for example, may store data processed by device <NUM>.

In some demonstrative embodiments, information processor <NUM> may be configured to perform and/or to trigger, cause, instruct and/or control device <NUM> to perform one or more functionalities, operations and/or procedures, and/or to perform one or more wireless communications, to generate and/or communicate one or more messages and/or wireless transmissions.

In some demonstrative embodiments, device <NUM> may include a message processor <NUM> configured to generate, process and/or access one or more messages communicated by device <NUM>.

In one example, message processor <NUM> may be configured to generate one or more messages to be transmitted by device <NUM>, and/or message processor <NUM> may be configured to access and/or to process one or more messages received by device <NUM>, e.g., as described below.

In some demonstrative embodiments, message processor <NUM> may include, or may be implemented, partially or entirely, by circuitry and/or logic, e.g., one or more processors including circuitry and/or logic, memory circuitry and/or logic. Additionally or alternatively, one or more functionalities of message processor <NUM> may be implemented by logic, which may be executed by a machine and/or one or more processors, e.g., as described below.

In some demonstrative embodiments, at least part of the functionality of message processor <NUM> may be implemented as part of information processor <NUM>.

In other embodiments, the functionality of message processor <NUM> may be implemented as part of any other element of device <NUM>.

In some demonstrative embodiments, at least part of the functionality of information processor <NUM> and/or message processor <NUM> may be implemented by an integrated circuit, for example, a chip, e.g., a System on Chip (SoC). In one example, the chip or SoC may be configured to perform one or more functionalities of information processor <NUM>, and one or more functionalities of message processor <NUM>. In one example, information processor <NUM> and message processor <NUM> may be implemented as part of the chip or SoC.

In other embodiments, information processor <NUM> and/or message processor <NUM> may be implemented by one or more additional or alternative elements of device <NUM>.

In demonstrative embodiments, device <NUM> includes a plurality of Physical Layer (PHY) chains <NUM> configured to communicate RF signals, for example, RF radar signals and/or RF wireless communication signals.

In some demonstrative embodiments, PHY chains <NUM> may include RF elements, RF circuitry and/or RF logic; baseband elements, circuitry and/or logic; modulation elements, circuitry and/or logic; demodulation elements, circuitry and/or logic; amplifiers; analog to digital and/or digital to analog converters; filters; and/or the like.

In some demonstrative embodiments, device <NUM> may include a plurality of antennas <NUM> connected to the plurality of PHY chains <NUM>, e.g., as described below.

In some demonstrative embodiments, the plurality of antennas <NUM> may include, or may be implemented by, a Multiple-Input-Multiple-Output (MIMO) antenna, for example, a MIMO radar antenna and/or a MIMO wireless communication antenna e.g., as described below. In other embodiments, the plurality of antennas <NUM> may include, or may be implemented by, any other type of antenna.

In one example, antennas <NUM> may include or may be part of any type of antennas suitable for transmitting and/or receiving radar signals and/or wireless communication signals. For example, antennas <NUM> may be implemented as part of any suitable configuration, structure, and/or arrangement of one or more antenna elements, components, units, assemblies, and/or arrays. For example, antennas <NUM> may be implemented as part of a phased array antenna, a multiple element antenna, a set of switched beam antennas, and/or the like. In some embodiments, antennas <NUM> may be implemented to support transmit and receive functionalities using separate and/or different transmit antenna elements and receive antenna elements. In some embodiments, antennas <NUM> may be implemented to support transmit and receive functionalities using common and/or integrated transmit/receive elements.

In some demonstrative embodiments, information processor <NUM> may be configured to generate radar information, for example, based on radar signals communicated by the plurality of PHY chains <NUM> via the plurality of antennas <NUM>, for example, when device <NUM> is implemented as part of, or includes, a radar device, e.g., as described below.

In some demonstrative embodiments, information processor <NUM> may be configured to process wireless communication signals communicated by the plurality of PHY chains <NUM> via the plurality of antennas <NUM>, for example, when device <NUM>, is implemented as part of, or includes, a wireless communication device.

In some demonstrative embodiments, one or more elements and/or components of the plurality of PHY chains <NUM> may be synchronized in time, for example, to achieve an accurate beamforming and/or Angle of Arrival (AoA) estimation.

In one example, different elements of a very large MIMO array, for example, in automotive imaging radar systems, may be tightly synchronized in time, for example, in order to achieve a very accurate beamforming and/or AoA performance, e.g., an accuracy of between <NUM>-<NUM> degrees, or any other accuracy level.

For example, elements of a MIMO array, e.g., antennas <NUM> and/or PHY chains <NUM>, may be required to start receive and/or transmit at the same time, for example, within an accuracy of picoseconds (psec), for example, to support the use of a high carrier frequency, e.g., a frequency between tens and hundreds of GHz, for example, as may be used by automotive radar systems, wireless communication systems, and/or any other systems.

In some demonstrative embodiments, there may be a need to synchronize between the elements of the MIMO array, e.g., antennas <NUM> and/or PHY chains <NUM>, for example, during a system wakeup flow and/or any other operation and/or procedure, which may require getting out of a reset, for example, while the reset may even be asynchronous.

In some demonstrative embodiments, achieving a synchronized RESET between the elements of the MIMO array, e.g., antennas <NUM> and/or PHY chains <NUM>, may provide a technical solution, which may significantly reduce a system complexity, for example, by achieving a required alignment between the elements of the MIMO array, e.g., antennas <NUM> and/or PHY chains <NUM>,, and/or by avoiding complex expensive calibrations, e.g., to compensate for reset timing miss-alignments after system wake up.

In some demonstrative embodiments, calibrating elements of a MIMO array, for example, based on known targets, and/or by using internal Hardware (HW) to measure delays, may have one or more technical inefficiencies, disadvantages and/or problems in one or more use cases, scenarios, and/or implementations. For example, such calibration may be expensive, may be complicated, may have a limited performance of accuracy, which may impact Key Performance indicators (KPIs), may require a lot of effort, e.g., to maintain a performance for production, and/or may not be accurate, e.g., since the calibration may be subjected to many impairments.

In some demonstrative embodiments, device <NUM> may include a clock <NUM> configured to generate a Local Oscillator (LO) signal <NUM> to be distributed to elements of PHY chains <NUM>, e.g., as described below.

In some demonstrative embodiments, LO signal <NUM> may have a frequency above <NUM> Gigahertz (GHz), for example, a frequency between <NUM> and <NUM>. For example, LO signal <NUM> may have a frequency above <NUM>, for example, above <NUM>, e.g., above <NUM>. In one example, LO signal <NUM> may have a frequency between <NUM> and <NUM>, e.g., to support an implementation of automotive radar, and. /or any other implementation. In another example, LO signal <NUM> may have a frequency above <NUM>, e.g., to support an implementation of wireless communication over a mmWave frequency band. In other embodiments, LO signal <NUM> may be configured to any other frequency band and/or range.

In some demonstrative embodiments, device <NUM> includes a reset source <NUM> configured to generate, trigger, and/or release a reset signal <NUM> to be distributed to elements of PHY chains <NUM>, e.g., as described below.

In some demonstrative embodiments, there may be one or more technical inefficiencies, disadvantages and/or problems, e.g., in one or more use cases, scenarios, and/or implementations, for implementing a topology in which each PHY element <NUM> is configured to receive the LO signal <NUM>, and wherein each PHY element includes a synchronizer to receive reset signal <NUM> from reset source <NUM>.

In one example, the synchronizer may sample the reset signal <NUM>, and may reset elements of the PHY chain <NUM> based on the reset signal <NUM>. However, this implementation may not provide accurate synchronization between the different PHY chains <NUM>, and/or may be complicated. For example, this implementation may add a non-deterministic variance across the plurality of PHY chains <NUM>, e.g., due to double buffer sampling.

In some demonstrative embodiments, device <NUM> may be configured according to a reset distribution scheme, which is configured to distribute reset signal <NUM> to PHY chains <NUM>, e.g., as described below.

In some demonstrative embodiments, device <NUM> may be configured to implement a synchronized reset of the plurality of PHY chains <NUM> based on reset signal <NUM>, for example, during a system wakeup, for example, in a manner which may support a technical solution to avoid the implementation of a synchronizer, e.g., as described below.

In demonstrative embodiments, device <NUM> is configured to modulate the LO signal <NUM> based on reset signal <NUM>, e.g., as described below.

In some demonstrative embodiments, a location of distribution of LO signal <NUM> to the PHY chains <NUM> may be agnostic to the modulation of LO signal <NUM> based on the reset signal <NUM>.

In one example, the modulation of the reset signal <NUM> over the LO signal <NUM> may be applied, for example, over an on-board LO distribution, e.g., in an implementation where LO signal <NUM> is generated and/or modulated outside of and/or separate from, PHY chains <NUM>.

In another example, the modulation of the reset signal <NUM> over the LO signal <NUM> may be applied, for example, via off-board LO distribution, e.g., in an implementation where the LO signal <NUM> may be internally generated and/or modulated, for example, within an RF chip of PHY chains <NUM>, such that the LO signal <NUM> may be distributed to other elements of PHY chains <NUM>.

In demonstrative embodiments, device <NUM> includes an LO generator <NUM> configured to generate a distributed modulated LO signal <NUM>, for example, by modulating an LO signal <NUM> based on reset signal <NUM>, e.g., as described below.

In some demonstrative embodiments, LO generator <NUM> may be implemented in platforms having a common high frequency clock, e.g., clock <NUM>, which may be used for an entire array of elements, e.g., elements of the plurality of PHY chains <NUM>. For example, such platforms may be implemented for high frequencies, e.g., frequencies between <NUM>-<NUM>, or any other frequencies. A common clock, e.g., clock <NUM>, may be implemented, for example, to achieve a common phase noise between the array elements. For example, the common clock <NUM> may be distributed evenly to elements of PHY chains <NUM>, and may be utilized as a source clock for RF elements in the PHY chains <NUM>.

For example, the common clock <NUM> may be balanced and calibrated, for example, in platforms where the LO signal <NUM> may be a critical signal. Therefore, modulating the reset signal <NUM> on the LO signal <NUM> may achieve a technical solution of synchronizing the reset signal <NUM> across the plurality of PHY chains <NUM>, for example, even without routing dedicated lines, which may be relatively complicated, and/or even without using techniques to calibrate an impact of the reset signal <NUM> on array timing alignment, which may include very complicated flows.

In demonstrative embodiments, the distributed modulated LO signal <NUM> is distributed to the plurality of PHY chains <NUM>, e.g., as described below.

In some demonstrative embodiments, the plurality of PHY chains <NUM> may receive the distributed modulated LO signal <NUM>, which is distributed to the plurality of PHY chains <NUM> by LO generator <NUM>, e.g., as described below.

In demonstrative embodiments, a PHY chain <NUM> of the plurality of PHY chains <NUM> includes a reset detector <NUM>, e.g., as described below.

In one example, each PHY chain of PHY chains <NUM> may be configured to include the detector <NUM>. In other embodiments, only some of the PHY chains may implement the detector.

In demonstrative embodiments, reset detector <NUM> is configured to detect the reset signal <NUM>, for example, based on the distributed modulated LO signal <NUM>, and to reset one or more RF elements <NUM> of the PHY chain <NUM>, for example, based on detection of the reset signal <NUM>, e.g., as described below.

In some demonstrative embodiments, reset detector <NUM> is configured to reset the one or more RF elements <NUM> of the PHY chain <NUM>, for example, by releasing, triggering, indicating and/or sending a reset signal <NUM> to the one or more RF elements <NUM>, e.g., as described below.

In some demonstrative embodiments, reset detector <NUM> may be configured to reset one or more digital-domain PHY elements of the PHY chain <NUM>, for example, based on the detection of the reset signal, e.g., as described below.

In some demonstrative embodiments, RF elements <NUM> may be configured to communicate RF signals, for example, based on the distributed modulated LO signal <NUM>, e.g., as described below.

In some demonstrative embodiments, for example, the RF elements <NUM> may include, for example, modulation elements, circuitry and/or logic; demodulation elements, circuitry and/or logic; amplifiers; analog to digital and/or digital to analog converters; filters, and the like.

in some demonstrative embodiments, the RF signals may include wireless communication signals, for example, in an implementation where device <NUM> includes a wireless communication device.

in some demonstrative embodiments, the RF signals may include radar signals, for example, in an implementation where device <NUM> includes a radar.

In some demonstrative embodiments, the distributed modulated LO signal <NUM> may be configured to synchronize communication of the plurality of PHY chains <NUM>, e.g., as described below.

In demonstrative embodiments, LO generator <NUM> is configured to modulate
the reset signal <NUM> over the distributed modulated LO signal <NUM>, which may be distributed to the plurality of PHY chains <NUM>.

In some demonstrative embodiments, generating the distributed modulated LO signal <NUM> by modulating LO signal <NUM> based on the reset signal <NUM> may provide a relatively simple solution, e.g., from a system implementation perspective, for example, to trigger a synchronized RESET across a massive antenna array, e.g., in a very accurate resolution.

In some demonstrative embodiments, implementation of LO generator <NUM> may provide a low cost and/or a low risk technical solution, for example, from a routing perspective, for example, where fan-out reset for a massive antenna array may have a long rise time, and resulting in-accuracies may require complicated system solutions.

In some demonstrative embodiments, implementation of LO generator <NUM> may provide a technical solution for avoiding additional complex routing, for example, by using existing routing to deliver the reset signal <NUM> over the modulated LO signal <NUM>.

In some demonstrative embodiments, implementation of LO generator <NUM> may provide a technical solution of accurate and/or synchronized reset, which may support reduction of system overhead. For example, implementation of LO generator <NUM> may provide a technical solution avoiding a task of measuring post reset accuracy in a measure of psec. This task may be very complicated, may increase cost, e.g., by increasing chip area, power consumption, latency, and/or overall system risk.

In some demonstrative embodiments, LO generator <NUM> may be configured to modulate the reset signal <NUM> over the LO signal <NUM>, for example, according to an amplitude modulation scheme , a Frequency modulation scheme, and/or a Phase modulation scheme, e.g., as described below.

In some demonstrative embodiments, LO generator <NUM> may be configured to generate the distributed modulated LO signal <NUM>, for example, by modulating an amplitude of the LO signal <NUM>, for example, based on the reset signal <NUM>, e.g., as described below.

In some demonstrative embodiments, LO generator <NUM> may be configured to generate the distributed modulated LO signal <NUM>, for example, based on a reset event indicated by the reset signal <NUM>.

In some demonstrative embodiments, LO generator <NUM> may be configured to generate the distributed modulated LO signal <NUM> by applying a predefined amplitude change to the amplitude of the LO signal <NUM>, for example, based on a reset event indicated by the reset signal <NUM>, e.g., as described below.

In some demonstrative embodiments, reset detector <NUM> may be configured to reset (<NUM>) the one or more RF elements <NUM>, for example, based on a detection of the predefined amplitude change in the amplitude of the distributed modulated LO signal <NUM>, e.g., as described below.

In some demonstrative embodiments, LO generator <NUM> may be configured to, based on the reset event indicated by the reset signal <NUM>, generate the distributed modulated LO signal <NUM>, for example, having an amplitude above a predefined amplitude threshold, e.g., as described below.

In some demonstrative embodiments, reset detector <NUM> may be configured to reset (<NUM>) the one or more RF elements <NUM>, for example, based on a detection that the amplitude of the distributed modulated LO signal <NUM> is above the predefined amplitude threshold, e.g., as described below.

Reference is made to <FIG>, which schematically illustrates a distributed modulated LO signal <NUM> based on a reset signal <NUM>, in accordance with some demonstrative embodiments.

In demonstrative embodiments, LO generator <NUM> (<FIG>) is configured to generate distributed modulated LO signal <NUM> based on reset signal <NUM>, e.g., as described below. For example, distributed modulated LO signal <NUM> (<FIG>) may include distributed modulated LO signal <NUM>.

In some demonstrative embodiments, LO generator <NUM> (<FIG>) may be configured to generate the distributed modulated LO signal <NUM>, for example, based on a reset event <NUM> indicated by the reset signal <NUM>, by applying a predefined amplitude change <NUM> to an amplitude <NUM> of the LO signal <NUM>.

In some demonstrative embodiments, LO generator <NUM> (<FIG>), may be configured to, based on the reset event <NUM>, generate the distributed modulated LO signal <NUM>, for example, having an amplitude <NUM> above a predefined amplitude threshold <NUM>, e.g., as described below.

In other embodiments, LO generator <NUM> (<FIG>), may be configured to modulate the reset signal <NUM> over the distributed modulated LO signal <NUM>, for example, by modulating the amplitude of the distributed modulated LO signal <NUM>, for example, from high to low, using several amplitude transitions, e.g., to support robust system detection, and/or based on any other technique or method of amplitude modulation.

In some demonstrative embodiments, as shown in <FIG>, distributed modulated LO signal <NUM> may be maintained active and, based on a reset even, e.g., from low to high, an amplitude of distributed modulated LO signal <NUM> may be increased above a pre-defined detectable threshold, e.g., the predefined amplitude threshold <NUM>, which may be detected by an internal buffer, e.g., implemented by detector <NUM> (<FIG>).

In some demonstrative embodiments, the amplitude modulation of distributed modulated LO signal <NUM> based on the reset signal <NUM> may provide a technical solution of maintaining distributed modulated LO signal <NUM> active. As a result, lines on the board may be loaded, and a capacitance change, e.g., when amplitude increases, may be maintained at a minimum. This solution may reduce high frequency content of an amplitude change of the distributed modulated LO signal <NUM>.

Reference is made to <FIG>, which schematically illustrates a PHY chain <NUM> configured to detect a reset signal based on a distributed modulated LO signal <NUM>, in accordance with some demonstrative embodiments. For example, PHY chain <NUM> (<FIG>) may include one or more elements of, and/or may perform one or more operations of, and/or one or more functionalities of, PHY chain <NUM>.

In some demonstrative embodiments, as shown in <FIG>, PHY chain <NUM> may include an amplitude detector <NUM>, and one or more RF elements <NUM>, which may be configured to communicate RF signals based on the distributed modulated LO signal <NUM>, e.g., as described below. For example, reset detector <NUM> (<FIG>) may include one or more elements of, and/or may perform one or more operations of, and/or one or more functionalities of, amplitude detector <NUM>; and/or RF elements <NUM> (<FIG>) may include one or more elements of, and/or may perform one or more operations of, and/or one or more functionalities of, RF elements <NUM>.

In some demonstrative embodiments, for example, amplitude detector <NUM> may
implement an input buffer stage to release a reset signal <NUM> to the RF elements <NUM>, for example, based on the detection of an amplitude change in the distributed modulated LO signal <NUM>, e.g., as described below.

In demonstrative embodiments, distributed modulated LO signal <NUM> includes an LO signal modulated based on a reset signal, e.g., as described above.

In one example, distributed modulated LO signal <NUM> may include the distributed modulated LO signal <NUM> (<FIG>), which may be modulated based on the reset signal <NUM> (<FIG>), e.g., as described above.

In some demonstrative embodiments, amplitude detector <NUM> may be configured to detect the reset signal based on the distributed modulated LO signal <NUM>, and, to reset (<NUM>) RF elements <NUM>, for example, based on detection of the reset signal, e.g., as described below.

In some demonstrative embodiments, amplitude detector <NUM> may be configured to reset <NUM> the one or more RF elements <NUM>, for example, based on a detection of a predefined amplitude change in the amplitude of the distributed modulated LO signal <NUM>, e.g., as described below.

In one example, amplitude detector <NUM> may be configured to reset (<NUM>) the one or more RF elements <NUM>, for example, based on a detection of the predefined amplitude change <NUM> (<FIG>) in the amplitude <NUM> (<FIG>) of the distributed modulated LO signal <NUM> (<FIG>).

In some demonstrative embodiments, reset detector <NUM> may be configured to reset (<NUM>) the one or more RF elements <NUM>, for example, based on a detection that an amplitude of the distributed modulated LO signal <NUM> is above a predefined amplitude threshold, e.g., as described below.

In one example, reset detector <NUM> may be configured to reset (<NUM>) the one or more RF elements <NUM>, for example, based on a detection that an amplitude <NUM> (<FIG>) of the distributed modulated LO signal <NUM> (<FIG>) is above the predefined amplitude threshold <NUM> (<FIG>).

In some demonstrative embodiments, as shown in <FIG>, distributed modulated LO signal <NUM> may be inputted in parallel to an RF domain, e.g., RF elements <NUM>, and to amplitude detector <NUM>, for example, to enable amplitude detector <NUM> to release reset <NUM> to the RF domain, e.g., in synchronization with the Lo signal provided to the RF domain.

In some demonstrative embodiments, reset <NUM> may be released into a digital-domain, for example, to reset real-time logic, which may support the RF-domain, e.g., Analog to Digital Converter (ADC) digital logic, Digital to Analog Converter (DAC) digital logic, controllers, and the like.

Referring back to <FIG>, in some demonstrative embodiments, LO generator <NUM> may modulate the reset signal <NUM> over the LO signal <NUM>, for example, based on a frequency modulation scheme and/or a phase modulation scheme, e.g., as described below.

In some demonstrative embodiments, LO generator <NUM> may be configured to generate the distributed modulated LO signal <NUM> by modulating a frequency of the LO signal <NUM>, for example, based on the reset signal <NUM>, e.g., as described below.

In some demonstrative embodiments, LO generator <NUM> may be configured to, based on the reset event indicated by the reset signal <NUM>, generate the distributed modulated LO signal <NUM> having a frequency, which is lower than a predefined frequency threshold, for a predefined time period, e.g., as described below.

In some demonstrative embodiments, reset detector <NUM> may be configured to reset (<NUM>) the one or more RF elements <NUM>, for example, based on a detection that the frequency of the distributed modulated LO signal is below the predefined frequency threshold for a predefined detection period, e.g., as described below.

In some demonstrative embodiments, reset detector <NUM> may be configured to reset the one or more RF elements <NUM>, for example, within the predefined time period, e.g., as described below.

In some demonstrative embodiments, the predefined detection period may be shorter than the predefined time period, e.g., as described below.

In some demonstrative embodiments, LO generator <NUM> may be configured to, based on the reset event indicated by the reset signal <NUM>, generate the distributed modulated LO signal <NUM> including a predefined modulation sequence, e.g., as described below.

In some demonstrative embodiments, reset detector <NUM> may be configured to reset (<NUM>) the one or more RF elements <NUM>, for example, based on a detection of the predefined modulation sequence in the distributed modulated LO signal <NUM>, e.g., as described below.

In some demonstrative embodiments, the predefined modulation sequence may include a predefined frequency modulation sequence and/or a predefined phase modulation sequence, e.g., as described below.

In some demonstrative embodiments, LO generator <NUM> may be configured to, based on the reset event indicated by the reset signal <NUM>, generate the distributed modulated LO signal <NUM> including a predefined frequency sequence, e.g., as described below.

In some demonstrative embodiments, reset detector <NUM> may be configured to reset (<NUM>) the one or more RF elements <NUM>, for example, based on a detection of the predefined frequency sequence in the distributed modulated LO signal <NUM>, e.g., as described below.

In some demonstrative embodiments, the predefined frequency sequence may include a sequence of frequencies lower than a frequency of the LO signal <NUM>, e.g., as described below.

In other embodiments, the predefined frequency sequence may include any other frequency sequence.

In some demonstrative embodiments, LO generator <NUM> may be configured to, based on the reset event indicated by the reset signal <NUM>, generate the distributed modulated LO signal <NUM> including a predefined phase sequence, e.g., as described below.

In some demonstrative embodiments, reset detector <NUM> may be configured to reset (<NUM>) the one or more RF elements <NUM>, for example, based on a detection of the predefined phase sequence in the distributed modulated LO signal <NUM>, e.g., as described below.

In some demonstrative embodiments, the predefined phase sequence may include a predefined phase code, e.g., as described below.

In some demonstrative embodiments, the predefined phase sequence may include any other phase sequence.

Reference is made to <FIG>, which schematically illustrates a distributed modulated LO signal <NUM> based on a reset signal, in accordance with some demonstrative embodiments.

In demonstrative embodiments, LO generator <NUM> (<FIG>) is configured to
generate distributed modulated LO signal <NUM> based on reset signal <NUM> (<FIG>), e.g., as described below. For example, distributed modulated LO signal <NUM> (<FIG>) may include distributed modulated LO signal <NUM>.

In some demonstrative embodiments, LO generator <NUM> (<FIG>) may be configured to, based on a reset event indicated by reset signal <NUM> (<FIG>), generate the distributed modulated LO signal <NUM>, for example, having a frequency, which is lower than a predefined frequency threshold, for a predefined time period <NUM>, e.g., as described below.

In some demonstrative embodiments, as shown in <FIG>, the reset signal may be detected, for example, by reset detector <NUM> (<FIG>), for example, based on a detection that the frequency of distributed modulated LO signal <NUM> is below the predefined frequency threshold during a predefined detection period <NUM>, e.g., as described below.

In some demonstrative embodiments, as shown in <FIG>, the predefined detection period <NUM> may be shorter than the predefined time period <NUM>.

In some demonstrative embodiments, as shown in <FIG>, LO generator <NUM> (<FIG>) may lower the frequency of distributed modulated LO signal <NUM> abruptly, for example, to a very low frequency, for example, during a long silence period <NUM>.

In some demonstrative embodiments, reset detector <NUM> (<FIG>) may release a reset signal <NUM>, for example, based on detection of the low frequency for the detection period <NUM>. Implementing the reset detector <NUM> (<FIG>) in PHY chains <NUM> (<FIG>) may support a solution of releasing the reset signal <NUM> across the plurality of PHY chains <NUM> (<FIG>), e.g., synchronously.

In demonstrative embodiments, LO generator <NUM> (<FIG>) is configured to
generate distributed modulated LO signal <NUM> based on reset signal <NUM> (<FIG>), e.g., as described below. For example, distributed modulated LO signal <NUM> (<FIG>) may include distributed modulated LO signal <NUM>. In other embodiments, LO generator <NUM> (<FIG>) may be configured to implement any other additional or alternative frequency modulation scheme and/or phase modulation scheme.

In some demonstrative embodiments, LO generator <NUM> (<FIG>) may be configured to, based on a reset event indicated by reset signal <NUM> (<FIG>), generate the distributed modulated LO signal <NUM>, for example, including a predefined frequency and/or phase sequence <NUM>, e.g., as described below.

In some demonstrative embodiments, as shown in <FIG>, the reset signal may be detected, for example, by reset detector <NUM> (<FIG>), for example, based on a detection of the predefined frequency and/or phase sequence <NUM> in the distributed modulated LO signal <NUM>, e.g., as described below.

In some demonstrative embodiments, as shown in <FIG>, the predefined frequency and/or phase sequence <NUM> may include a sequence of frequencies lower than a frequency <NUM> of the LO signal <NUM> (<FIG>).

In some demonstrative embodiments, as shown in <FIG>, the predefined frequency and/or phase sequence <NUM> may include a predefined phase code.

In some demonstrative embodiments, as shown in <FIG>, LO generator <NUM> (<FIG>) may be configured to reduce the frequency of the distributed modulated LO signal <NUM> to a pre-defined frequency and/or to modulate a specific phase code onto the distributed modulated LO signal <NUM>.

In some demonstrative embodiments, reset detector <NUM> (<FIG>) may release a reset signal <NUM>, for example, based on detection of the predefined frequency and/or phase sequence <NUM>. Implementing the reset detector <NUM> (<FIG>) in the PHY chains <NUM> (<FIG>) may support a solution of releasing the reset signal <NUM> across the plurality of PHY chains <NUM> (<FIG>), e.g., synchronously.

In some demonstrative embodiments, as shown in <FIG>, PHY chain <NUM> may include a detector <NUM>, and one or more RF elements <NUM>, which may be configured to communicate RF signals based on the distributed modulated LO signal <NUM>, e.g., as described below. For example, reset detector <NUM> (<FIG>) may include one or more elements of, and/or may perform one or more operations of, and/or one or more functionalities of, detector <NUM>; and/or RF elements <NUM> (<FIG>) may include one or more elements of, and/or may perform one or more operations of, and/or one or more functionalities of, RF elements <NUM>.

In some demonstrative embodiments, for example, detector <NUM> may implement an input buffer stage to release a reset signal <NUM> to the RF elements <NUM>, for example, based on the detection of a reset event in the distributed modulated LO signal <NUM>, e.g., as described below.

In another example, distributed modulated LO signal <NUM> may include the distributed modulated LO signal <NUM> (<FIG>), which may be modulated based on the reset signal <NUM> (<FIG>), e.g., as described above.

In some demonstrative embodiments, detector <NUM> is configured to detect the reset signal based on the distributed modulated LO signal <NUM>, and, to reset (<NUM>) RF elements <NUM>, for example, based on detection of the reset signal, e.g., as described below.

In some demonstrative embodiments, detector <NUM> may be configured to reset (<NUM>) the one or more RF elements <NUM>, for example, based on a detection that a frequency of the distributed modulated LO signal <NUM> is below a predefined frequency threshold for a predefined detection period, e.g., as described below.

In one example, detector <NUM> may be configured to reset (<NUM>) the one or more RF elements <NUM>, for example, based on a detection that the frequency of the distributed modulated LO signal <NUM> is below the predefined frequency threshold for predefined detection period <NUM> (<FIG>).

In some demonstrative embodiments, detector <NUM> may be configured to reset (<NUM>) the one or more RF elements <NUM>, based on the detection of the reset signal, for example, within the time period <NUM> (<FIG>).

In some demonstrative embodiments, detector <NUM> may be configured to detect a long silence period in distributed modulated LO signal <NUM>, e.g., time period <NUM> (<FIG>), and to release reset <NUM>.

In some demonstrative embodiments, detector <NUM> may be configured to reset (<NUM>) the one or more RF elements <NUM>, for example, based on a detection of a predefined frequency and/or phase sequence in the distributed modulated LO signal <NUM>, e.g., as described below.

In one example, detector <NUM> may be configured to reset (<NUM>) the one or more RF elements <NUM>, for example, based on a detection of the predefined frequency and/or phase sequence <NUM> (<FIG>) in the distributed modulated LO signal <NUM>.

In some demonstrative embodiments, frequency/phase detector <NUM> may internally release the reset <NUM> to the RF elements <NUM> synchronously, for example, when the predefined frequency and/or phase sequence, e.g., the predefined frequency and/or phase sequence <NUM> (<FIG>), is detected.

In some demonstrative embodiments, as shown in <FIG>, distributed modulated LO signal <NUM> may be inputted in parallel to an RF domain, e.g., RF elements <NUM>, and to detector <NUM>, for example, to enable detector <NUM> to release reset <NUM> to the RF domain, e.g., in synchronization with the LO signal provided to the RF domain.

Reference is made to <FIG>, which schematically illustrates a method of distributing a reset signal to a plurality of PHY chains, in accordance with some demonstrative embodiments. For example, one or more operations of the method of <FIG> may be performed by one or more elements of a system, e.g., system <NUM> (<FIG>), a vehicle, e.g., vehicle <NUM> (<FIG>), a device, e.g., device <NUM> (<FIG>), an LO generator, e.g., LO generator <NUM> (<FIG>), a PHY chain, e.g., PHY chains <NUM> (<FIG>), and/or a reset detector, e.g., reset detector <NUM> (<FIG>).

As indicated at block <NUM>, the method includes generating a distributed modulated LO signal at an LO generator, by modulating an LO signal based on a reset signal. For example, LO generator <NUM> (<FIG>) may generate distributed modulated LO signal <NUM> (<FIG>) by modulating LO signal <NUM> (<FIG>) based on reset signal <NUM> (<FIG>), e.g., as described above.

As indicated at block <NUM>, the method includes receiving, by a plurality of PHY chains, the distributed modulated LO signal, which is distributed to the plurality of PHY chains by the LO generator. For example, the plurality of PHY chains <NUM> (<FIG>) may receive the distributed modulated LO signal <NUM> (<FIG>), which is distributed to the plurality of PHY chains <NUM> (<FIG>) by the LO generator <NUM> (<FIG>), e.g., as described above.

As indicated at block <NUM>, the method includes detecting, at a reset detector of a PHY chain of the plurality of PHY chains, the reset signal based on the distributed modulated LO signal. For example, reset detector <NUM> (<FIG>) may detect the reset signal <NUM> (<FIG>) based on the distributed modulated LO signal <NUM> (<FIG>), e.g., as described above.

As indicated at block <NUM>, the method includes resetting one or more Radio Frequency (RF) elements of the PHY chain based on detection of the reset signal. For example, reset detector <NUM> (<FIG>) may reset <NUM> (<FIG>) RF elements <NUM> (<FIG>) based on detection of the reset signal <NUM> (<FIG>), e.g., as described above.

Reference is made to <FIG>, which schematically illustrates a product of manufacture <NUM>, in accordance with some demonstrative embodiments. Product <NUM> may include one or more tangible computer-readable ("machine-readable") non-transitory storage media <NUM>, which may include computer-executable instructions, e.g., implemented by logic <NUM>, operable to, when executed by at least one computer processor, enable the at least one computer processor to implement one or more operations at device <NUM> (<FIG>), LO generator <NUM> (<FIG>), PHY chains <NUM> (<FIG>), and/or reset detector <NUM> (<FIG>). Additionally or alternatively, storage media <NUM>, which may include computer-executable instructions, e.g., implemented by logic <NUM>, operable to, when executed by at least one computer processor, enable the at least one computer processor to cause device <NUM> (<FIG>), LO generator <NUM> (<FIG>), PHY chains <NUM> (<FIG>), and/or reset detector <NUM> (<FIG>) to perform, trigger and/or implement one or more operations and/or functionalities, e.g., as described herein. Additionally or alternatively, storage media <NUM>, which may include computer-executable instructions, e.g., implemented by logic <NUM>, operable to, when executed by at least one computer processor, enable the at least one computer processor to perform, trigger and/or implement one or more operations and/or functionalities described with reference to the <FIG>, <FIG>, <FIG>, <FIG> and/or <NUM>, and/or one or more operations described herein. The phrases "non-transitory machine-readable medium" and "computer-readable non-transitory storage media" may be directed to include all computer-readable media, with the sole exception being a transitory propagating signal.

In some demonstrative embodiments, product <NUM> and/or machine-readable storage media <NUM> may include one or more types of computer-readable storage media capable of storing data, including volatile memory, non-volatile memory, removable or non-removable memory, erasable or non-erasable memory, writeable or re-writeable memory, and the like. For example, machine-readable storage media <NUM> may include, RAM, DRAM, Double-Data-Rate DRAM (DDR-DRAM), SDRAM, static RAM (SRAM), ROM, programmable ROM (PROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), Compact Disk ROM (CD-ROM), Compact Disk Recordable (CD-R), Compact Disk Rewriteable (CD-RW), flash memory (e.g., NOR or NAND flash memory), content addressable memory (CAM), polymer memory, phase-change memory, ferroelectric memory, silicon-oxide-nitride-oxide-silicon (SONOS) memory, a disk, a floppy disk, a hard drive, an optical disk, a magnetic disk, a card, a magnetic card, an optical card, a tape, a cassette, and the like. The computer-readable storage media may include any suitable media involved with downloading or transferring a computer program from a remote computer to a requesting computer carried by data signals embodied in a carrier wave or other propagation medium through a communication link, e.g., a modem, radio or network connection.

In some demonstrative embodiments, logic <NUM> may include instructions, data, and/or code, which, if executed by a machine, may cause the machine to perform a method, process, and/or operations as described herein. The machine may include, for example, any suitable processing platform, computing platform, computing device, processing device, computing system, processing system, computer, processor, or the like, and may be implemented using any suitable combination of hardware, software, firmware, and the like.

In some demonstrative embodiments, logic <NUM> may include, or may be implemented as, software, a software module, an application, a program, a subroutine, instructions, an instruction set, computing code, words, values, symbols, and the like. The instructions may include any suitable type of code, such as source code, compiled code, interpreted code, executable code, static code, dynamic code, and the like. The instructions may be implemented according to a predefined computer language, manner, or syntax, for instructing a processor to perform a certain function. The instructions may be implemented using any suitable high-level, low-level, object-oriented, visual, compiled and/or interpreted programming language, such as C, C++, Java, BASIC, Matlab, Pascal, Visual BASIC, assembly language, machine code, and the like.

Functions, operations, components and/or features described herein with reference to one or more embodiments, may be combined with, or may be utilized in combination with, one or more other functions, operations, components and/or features described herein with reference to one or more other embodiments, or vice versa.

Claim 1:
An apparatus comprising:
a Local Oscillator, LO, generator (<NUM>) configured to generate a distributed modulated LO signal (<NUM>) by modulating an LO signal (<NUM>) based on a reset signal (<NUM>);
and
a plurality of Physical Layer, PHY, chains (<NUM>) connected to the LO generator (<NUM>) to receive the distributed modulated LO signal (<NUM>), which is distributed to the plurality of PHY chains (<NUM>) by the LO generator (<NUM>), at least two PHY chains of the plurality of PHY chains (<NUM>) comprising reset detectors (<NUM>) configured to detect the reset signal based on the distributed modulated LO signal (<NUM>), and, based on a detection of the reset signal, to reset one or more Radio Frequency, RF, elements of the at least two PHY chains.