Abstract: According to certain aspects a wireless device includes transmitters, and a processor coupled to the transmitters. The processor is configured to determine a radio frequency (RF) exposure value at a peak location based on transmission power levels for the transmitters, determine a contribution of each one of the transmitters to the RF exposure value at the peak location, and reduce the transmission power level for each one of one or more of the transmitters based on the contributions of the transmitters to the RF exposure value at the peak location.

Abstract: An apparatus and system for obtaining sensory data is disclosed. The apparatus includes a housing configured to couple to a first network device, a battery displaced within the housing, and circuitry displaced at least partially within the housing, the circuitry including an integrated circuit, an accelerometer, and a communications interface, wherein the circuitry includes logic configured to perform operations including receiving signals from one or more network devices including the first network device, parsing a first signal to (i) identify a unique identifier of the first network device of the one or more network devices, wherein the first network device transmitted the first signal, and (ii) determine a received signal strength indicator (RSSI) value of the first signal, and transmitting a communication to the first network device indicating the RSSI value of the first signal. The housing may be formed from any of hardened plastic, metal, glass, or composite.

Abstract: A screen protector applicator for electronic equipment, which includes a positioning die, an adhesive parts and a flexible pulling parts. The positioning die includes a bottom panel and a few of side panels, which form a positioning cavity for positioning a screen protector and the electronic equipment. The adhesive parts is fixed a first end of the bottom panel and a top surface of the adhesive parts is provided with an adhesive layer for sticking an end of the screen protector. The flexible pulling parts is fixed on the second end of the bottom panel. A top surface of the flexible pulling parts is provided with the other adhesive layer for sticking the other end of the screen protector, one end of the flexible pulling parts extends out of the positioning cavity.

Abstract: Cascode power amplifier bias circuits suitable for operating across multiple power supply domains are provided. In certain embodiments, a power amplifier system includes a cascode power amplifier and a multi-domain bias circuit that generates at least a first cascode bias voltage for the cascode power amplifier. The multi-domain bias circuit includes a coarse regulator that generates a regulated voltage based on a power supply voltage that is operable with multiple voltage levels associated with different power supply domains, a bandgap reference circuit that is powered by the regulated voltage and outputs a bandgap reference voltage, a bias voltage generator that generates multiple selectable bias voltages based on the bandgap reference voltage, and a bias voltage selector that chooses the first cascode bias voltage from amongst the selectable bias voltages.

Abstract: An electronic device may include wireless circuitry. The wireless circuitry may include a quadratic phase generator for outputting a perfectly interpolated constant amplitude zero autocorrelation (CAZAC) sequence for a transmit path. The quadratic phase generator may include a numerically controlled oscillator, a switch controlled based on a value output from the numerically controlled oscillator, a first integrator stage, and a second integrator stage connected in series with the first integrator stage. The numerically controlled oscillator may receive as inputs a chirp count and a word length. The switch may be configured to switchably feed one of two input values that are a function of the chirp count and the word length to the first integrator stage. The quadratic phase generator may output full-bandwidth chirps or reduced-bandwidth chirps. Bandwidth reduction can be achieved by scaling the two input values of the switches.

Abstract: A transceiver may include a transmit path and a receive path that are each coupled to a radio frequency (RF) interface, and a self-interference canceller (SIC). The SIC is coupled between the transmit and the receive paths. The SIC is configured to cancel a self-interference signal from a received signal on the receive path based on a transmit signal on the transmit path.

Abstract: A method of characterizing a LoRa modulated signal or any such signals with a plurality of chirps as symbols. It foresees sampling and storing the signal, determining a phase of at least one chirp in the signal, and determining a timing error and/or a frequency error based on the phase, The timing error is extracted by the height of a discontinuous step in the phase at the position of the cyclical shift, while the frequency error is obtained by the slope of the phase. The method can be applied to a dedicated receiver for the characterization of LoRa transmitters.

Abstract: A wireless network with network-level channel hopping. A wireless network includes a wireless device. The wireless device includes a receiver, a data channel selector, and a transmitter. The receiver is configured to receive a beacon signal comprising a beacon sequence value. The data channel selector is configured to select, as a pseudorandom function of the beacon sequence value, a data channel on which to transmit in an interval following reception of the beacon signal. The transmitter is configured to transmit on the data channel selected by the channel selector.

Abstract: A system and method for enhanced channel hopping sequence is described. A pseudo random channel hopping sequence is redistributed using certain system specific parameters for separating adjacent transmission channels within a predetermined number of consecutive transmission channel numbers in the random channel hopping sequence to improve inter-channel interference between adjacent transmission channels.

Abstract: Near field communication (NFC) methods, systems, and devices are disclosed herein. In an example embodiment, the method includes providing a first NFC device including a NFC antenna, and transmitting a radio frequency (RF) signal including a RF carrier signal by way of the NFC antenna. Also, the method includes receiving a first resonant signal after the transmitting has ceased, and processing the first resonant signal to generate a first portion of transformed signal information. Further, the method includes identifying one or both of a first state and a first event based at least in part upon or associated with the first portion of the transformed signal information.

Abstract: A network-enabled smart apparatus has a data processing system, at least one operational system, wide area and local network communication interfaces, and a memory. The memory has stored therein apparatus identification information, at least one service application, and an activation application. The activation application causes the data processing system to establish an internet connection and create an NFC-enabled web page. The data processing system transmits, to the user device instructions to navigate to the NFC-enabled web page and instructions for the user to tap an NFC-enabled smart card to the user device. The apparatus data processing system reads, via the NFC-enabled web page, NFC information transmitted to the user device by the smart transaction card. The application causes the apparatus to transmit the NFC information to a service administration server, and receive, from the service administration server, a service activation command.

Abstract: Systems and methods are disclosed for contactless powering and control of conveyors on shuttles. An example system may include a track, a first transmitter disposed at a first location along the track, the first transmitter configured to transmit power and data wirelessly, and a shuttle configured to move along the track. The shuttle may include a conveyor, and a first receiver configured to wirelessly receive the power and the data from the first transmitter, where the power is used to power the conveyor. The shuttle may not have an onboard power source coupled to the conveyor.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify an uplink resource for reporting a Doppler measurement to a base station. The UE may determine a reference signal set precedes a reference point associated with the uplink resource prior to performing Doppler measurements based on the reference signals in the reference signal set. Each reference signal in the reference signal set may occur no later than a channel state information (CSI) reference resource, or an offset relative to the uplink resource defined by a number of symbols. The UE may determine the Doppler measurement based on the reference signal set, or multiple reference signal sets and may transmit the Doppler measurement to the base station in the uplink resource.

Abstract: Methods for reporting Channel State Information (CSI) from a wireless device to a radio network node are provided. More specifically, the wireless device receives an indication indicating a subset of Frequency Domain (FD) basis vectors among a full set of FD basis vectors from the radio network node. Accordingly, the wireless device computes a CSI corresponding to an enhanced type II port selection codebook using the indicated subset of FD basis vectors and report the CSI to the radio network node. The methods disclosed herein make it possible to reduce complexity and signaling overheat for reporting CSI based on the selected subset of FD basis vectors.

Abstract: According to some embodiments, a method performed by a wireless device for indicating preferred uplink beams in a beam sweep report comprises determining a downlink channel quality associated with each downlink reference signal of a plurality of downlink reference signals. Each of the plurality of downlink reference signals is associated with a beam pair between the wireless device and a network node. The method further comprises determining an uplink performance metric associated with each downlink reference signal of the plurality of downlink reference signals and selecting a subset of the plurality of downlink reference signals for reporting in a beam sweep report. At least one downlink reference signal is selected for inclusion in the subset based on its associated uplink performance metric. The method further comprises transmitting a beam sweep report to the network node based on the selected subset of downlink reference signals.

Abstract: Aspects of the disclosure relate to beam configuration for RF repeaters. An RF repeater is configured to measure received power of one or more signals in the repeater for each of a plurality of beam directions. Further, the repeater determines a beam forming configuration for a fronthaul link between the repeater and at least one base station based on the measured received power of each of plurality of beam directions. The repeater may also be configured to determine beam configurations for access links between the repeater and user equipment.

Abstract: Disclosed is a method performed by a RAN node of a wireless communication network for directing wireless signals towards wireless devices, the RAN node comprising multiple antennas. The method comprises transmitting, towards the wireless devices and through the multiple antennas, at least a first and a second set of reference signals having mutually different elevation beamforming weights for different elevation transmission directions, wherein elevation transmission direction signifies transmission at an elevation angle towards a horizontal direction.

Abstract: Disclosed are a device and method in a wireless communication system. The device comprises: a first generating unit configured to generate a first pre-coding matrix according to first channel information on a channel between a first communication apparatus and a second communication apparatus; a second generating unit configured to generate a second pre-coding matrix according to the first pre-coding matrix and second channel information on the channel; and a pre-coding unit configured to pre-code a data signal according to the first pre-coding matrix and the second pre-coding matrix. According to the embodiments of the present invention, interference between user equipment can be effectively removed, the operation complexity is reduced, and the whole performance of the system is optimized.

Abstract: Various embodiments include an apparatus to be employed by an enhanced Node B (eNB), the apparatus comprising communication circuitry to receive, from a user equipment (UE), feedback information and control circuitry, coupled with the communication circuitry, to identify a codeword from a three-dimensional codebook based on the feedback information received from the UE, wherein the communication circuitry is further to precode data to be transmitted to the UE based on the codeword. An apparatus to be employed by a UE and additional methods are described.

Abstract: Systems and methods are disclosed herein for determining a power to be used for a set of antenna ports for a physical uplink shared channel transmission. In some embodiments, a User Equipment (UE) comprises processing circuitry configured to derive a power P to be used for uplink power control for a physical uplink shared channel transmission and determine a power to be used for a set of antenna ports based on the power P according to a rule that depends on whether the UE is utilizing codebook based transmission or non-codebook based transmission for the physical uplink shared channel transmission. The set of antenna ports is antenna ports on which the physical uplink shared channel transmission is transmitted with non-zero power.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may identify, based at least in part on a scaling factor, one or more phase weights associated with a transmit beam of the wireless communication device. The scaling factor is associated with a frequency in a frequency band associated with the wireless communication device. The wireless communication device may generate, based at least in part on the one or more phase weights, the transmit beam. The wireless communication device may transmit a wireless communication using the transmit beam. Numerous other aspects are described.

Abstract: Apparatuses, systems, and methods for Channel State Information (CSI) enhancements in wireless communication systems, e.g., in 5G NR systems and beyond, including systems, methods, and mechanisms for quasi-collocation (QCL) configurations for multi-TRP CSI as well as a CSI report configuration to support reporting of single-TRP and multi-TRP measurements in a single reporting instance.

Abstract: Embodiments of the present application provide a method and an apparatus for CSI feedback, an electronic device, and a storage medium. The method for CSI feedback includes: determining a CSI measurement resource corresponding to each data layer group during CSI measurement; determining first correspondence relations between each data layer group and DMRS ports during CSI measurement; determining mapping modes between each data layer group and CSI-RS ports during CSI measurement; determining transmission mode used in CSI measurement and CSI reporting mode corresponding to the transmission mode; and performing CSI feedback according to the CSI measurement resource, the first correspondence relations, the mapping modes, the transmission mode used in the CSI measurement and the CSI reporting mode corresponding to the transmission mode. Therefore, the embodiments of the present application improve flexibility and accuracy of CSI feedback and reduce complexity of CSI feedback.

Abstract: Embodiments of the present disclosure provide methods and apparatus for transmitting CSI report. For example, a first aspect of the present disclosure provides a method performed at a terminal device, including: transmitting a first CSI report; transmitting a second CSI report; wherein at least a portion of the second CSI report is obtained based on the first CSI report. For example, a second aspect of the present disclosure provides a method performed at a terminal device, including: transmitting a first CSI report; and transmitting, to a network node, a change indicator about whether at least a portion of the first CSI report changes. According to embodiments of the present disclosure, the success rate of transmitting a CSI report may be improved and the payload for transmitting a CSI report may be reduced.

Abstract: A method of channel state information (CSI) report can include receiving a CSI report configuration at a user equipment (UE) from a base station, the CSI report configuration being associated with a set of CSI reference signal (CSI-RS) resources corresponding to multiple transmission reception points (TRPs), performing a channel measurement based on the CSI-RSs resources corresponding to the multiple TRPs, determining a precoder matrix indicator (PMI) based on measurement results of the channel measurement, the PMI corresponding to a precoder matrix, denoted W, of a Type II CSI codebook, the precoder matrix having a spatial domain (SD) basis vector matrix, denoted W1, SD basis selection of the SD basis vector matrix being TRP-specific, and transmitting a CSI report to the base station, the CSI report including the PMI.

Abstract: A method of channel state information (CSI) report can include receiving a CSI report configuration at a user equipment (UE) from a base station, the CSI report configuration being associated with a set of CSI reference signal (CSI-RS) resources corresponding to multiple transmission reception points (TRPs), performing a channel measurement based on the CSI-RSs resources corresponding to the multiple TRPs, determining a precoder matrix indicator (PMI) based on measurement results of the channel measurement, the PMI corresponding to a precoder matrix, denoted W, of a Type II CSI codebook, the precoder matrix having a spatial domain (SD) basis vector matrix, denoted W1, SD basis selection of the SD basis vector matrix being TRP-specific, and transmitting a CSI report to the base station, the CSI report including the PMI.

Abstract: A method of channel state information (CSI) report can include receiving a CSI report configuration at a user equipment (UE) from a base station, the CSI report configuration being associated with a set of CSI reference signal (CSI-RS) resources corresponding to multiple transmission reception points (TRPs), performing a channel measurement based on the CSI-RSs resources corresponding to the multiple TRPs, determining a precoder matrix indicator (PMI) based on measurement results of the channel measurement, the PMI corresponding to a precoder matrix, denoted W, of a Type II CSI codebook, the precoder matrix having a spatial domain (SD) basis vector matrix, denoted W1, SD basis selection of the SD basis vector matrix being TRP-specific, and transmitting a CSI report to the base station, the CSI report including the PMI.

Abstract: A wireless device receives, from a base station, configuration parameters indicating channel state information (CSI) resources for a cell and a periodicity of semi persistent (SP) CSI reports. The wireless device receives an SP CSI report activation media access control control element (MAC CE) indicating the SP CSI reports. The wireless device transmits, to the base station in response to the SP CSI report activation MAC CE and based on the periodicity, reference signal received power (RSRP) values for the SP CSI reports determined based on the CSI resources.

Abstract: Systems and methods are provided that involve the design and use of beam sets for CSI feedback that are customized for to a given environment, for example, a room, a hallway, an outdoor area, an indoor area. This can have the effect of reducing the number of beams within the beam set that are used to represent the downlink channel of a UE in a given environment, with a corresponding reduction in the overhead to feedback CSI. A customized beam set, once determined, is configured on a given UE using signalling. A UE that makes channel measurements on a received reference signal uses the channel measurements to obtain a set of beamforming weights for the customized beam set and sends the weights back to the network as CSI.

Abstract: A operating method of a wireless communication device includes transmitting a sounding reference signal (SRS) to a base station; receiving, from the base station, a first reference signal to which a second precoder is applied; generating feedback information including at least one of a rank indicator (RI) and a channel quality indicator (CQI), based on at least one of: (i) a relationship between the second precoder and a first precoder applied to a first physical downlink shared channel (PDSCH) by the base station based on the SRS; and (ii) a channel estimated by using the first reference signal; transmitting the generated feedback information to the base station; and receiving a second PDSCH to which at least one of the first precoder, the RI, and the CQI is applied.

Abstract: This application discloses a beam processing method and apparatus, and a communication device, which belong to the field of communication technologies. The method includes: obtaining quality information of a first beam; and determining quality information of a second beam according to the quality information of the first beam.

Abstract: Apparatuses, systems, and methods for performing downlink signal reception with antenna panel switching in a wireless communication system. A cellular base station may receive an indication of an antenna panel activation delay from a wireless device. The cellular base station may select a scheduling offset for a transmission to the wireless device based at least in part on the antenna panel activation delay. The scheduling offset may be selected to be at least the length of the antenna panel activation delay if it is expected that the wireless device may perform antenna panel activation to receive the transmission. The cellular base station may schedule the transmission to the wireless device using the selected scheduling offset, and may perform the transmission to the wireless device at the selected scheduling offset after scheduling the transmission to the wireless device.

Abstract: Certain aspects of the present disclosure provide techniques for compensating for certain characteristic(s) of an intelligent reflecting surface (IRS). A method that may be performed by a first wireless node includes obtaining an indication of a correction for an IRS to compensate for one or more characteristics of the IRS and communicating with a second wireless node via the IRS using the indication of the correction.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a synchronization signal block (SSB) transmitted by a base station. The UE may receive system information that includes reconfigurable intelligent surface (RIS) or repeater assisted initial access information that identifies a set of SSBs that are associated with an RIS or a repeater and a modulation signature associated with the RIS or the repeater. The UE may selectively perform initial access using the SSB or search for another SSB based at least in part on the RIS or repeater assisted initial access information. Numerous other aspects are described.

Abstract: An apparatus, method and computer program is described comprising: determining a first desired formation for a plurality of objects in accordance with a communication performance algorithm, wherein the plurality of objects are in communication with a first communication node; and instructing the objects of the plurality to move to respective object positions of the first desired formation in a first mode of operation.

Abstract: A highly sensitive RADAR system comprising a plurality of ground stations, where each ground station includes a plurality of ground-based directional antennae, each ground-based directional antenna having a beam width associated with a particular area of the sky above the ground station and, for each ground-based directional antenna, a least one software defined radio is coupled to the directional antenna in such a manner as to enable the ground-based directional antenna to transmit radio frequency signals generated by the software defined radio at one or more frequencies and to provide to the software defined radio frequency signals received by the ground-based directional antenna at one or more frequencies; and where each of a plurality of the ground stations is configured to transmit a radio frequency signal into a specific defined area of space in such a manner that the various transmitted radio signals will arrive in the defined area of space at substantially the same time; and wherein, each of the plura

Abstract: An apparatus including a circuit, a temperature sensor, a sensor and a control system. The circuit may be configured to receive an input signal and a configuration signal and generate an output signal in response to performing an upconversion of the input signal to a selected frequency band and an amplification of the input signal in response to the configuration signal. The temperature sensor may be configured to measure a temperature. The sensor may be configured to measure a sensor value. The control system may be configured to generate the configuration signal in response to the temperature and the sensor value. The configuration signal may be generated to maintain a gain of the amplification at a target level over a range of an operating condition during the upconversion. The target level of the gain for the operating condition may be determined in response to a pre-determined calculation.

Abstract: Techniques for determining the position of a transmitter using two or more antenna arrays are described. According to some techniques, first and second antenna arrays create respective sets of receive beams, and at least some of the receive beams of each array detect symbols of a preamble symbol sequence. The respective sets of receive beams that detected the symbols are sorted by path length, and a shortest path length from the transmitter to the respective arrays is determined. An intersection point of the shortest paths is used to determine the position of the transmitter.

Abstract: A geosynchronous equatorial orbit (GEO) ground station may concurrently receive at a tracking receiver both a first signal (downlink data) at a first frequency from a GEO satellite and an internally-generated calibration signal at a second frequency. Based on the calibration signal, the tracking receiver may determine a first phase value for the second frequency, then, from the first phase value, determine a second phase value associated with the first frequency based on a first phase offset between the first frequency and the second frequency according to a set of receiver calibration factors, then generate a phase correction value for signals received at the first frequency without interrupting the downlink data coming from the GEO satellite. Having accurate phasing allows the tracking receiver to report tracking errors correctly to the antenna controller and therefore allow for improved tracking performance.

Abstract: Embodiments of the present invention include a two-stage blending filter that blends the measurements from two angular sensors to form a single superior high bandwidth measurement for improved disturbance rejection in a satellite systems for increased accuracy in satellite pointing, orientation, and attitude control. Embodiments of the present invention can include a satellite system including a first sensor including or defining a first measurement bandwidth; a first filter connected to the first sensor; a second sensor including or defining a second measurement bandwidth; a second filter connected to the second sensor; and a third filter connected to the first filter and the second filter. The third filter blend the first signal and the second signal into a third signal; and transmit the third signal to a flight controller configured to adjust an orientation of the satellite, a satellite subsystem, or both, relative to a target in response to the third signal.

Abstract: Systems and techniques are provided for wireless communications performed at a network entity. For example, the systems and techniques can include obtaining, at the network entity, a target relative time difference (RTD). A transmission timing pre-compensation can be determined at the network entity between a first reference signal and a second reference signal, wherein the transmission timing pre-compensation is determined based on the target RTD and one or more network delay components. The first reference signal and the second reference signal can be transmitted using the transmission timing pre-compensation to offset the first reference signal from the second reference signal by the target RTD.

Abstract: A method of operating a satellite communications network, the method comprising: receiving from a satellite terminal a message; and storing the message contents in a satellite network database, the message indicating one or both of: (i) a list of communication satellites which are blocked to a satellite antenna or a portion of the field of view of the satellite antenna which is blocked, at a particular geographic location of the satellite antenna; and (ii) a list of communication satellites that are visible to the satellite antenna or a visible portion of the field of view of the satellite antenna, at a particular geographic location of the satellite antenna. A method of operating a satellite terminal having a satellite antenna.

Abstract: A method may include directing transmission of a first optical noise signal along a frequency channel of an optical network at a first power level. The first optical noise signal may include a notch at a frequency in the frequency channel. The method may also include while transmission of the first optical noise signal occurs along the frequency channel, obtaining a measurement of a first noise level at the frequency and obtaining a measurement of a second noise level at the frequency. The frequency channel may include a second power level when the measurement of the second noise level is obtained and the second power level may be different than the first power level. The method may further include estimating a noise level of an optical data signal transmitted along the frequency channel based on the first noise level and the second noise level.

Abstract: A phase difference distribution estimation method includes: receiving an optical signal via a space and detecting a phase of the optical signal; calculating characteristic values related to characteristics of the atmosphere through which the optical signal propagates from the optical signal received in the receiving; estimating a phase difference distribution of an optical signal received after a certain period of time, on the basis of the characteristic values calculated in the calculating; and controlling a phase of an optical signal in the receiving on the basis of the phase difference distribution estimated in the estimating.

Abstract: The present invention provides systems and methods for providing geolocation services in a mobile-based crowdsourcing platform. More specifically, the system of the present invention includes a plurality of remote mobile devices and a visible light communication (VLC) enabled lighting system configured to communicate and exchange data with a cloud-based service, such as a crowdsourcing platform. The crowdsourcing platform generally provides a geolocation service based on the crowdsourcing, or polling, of users of the mobile devices, in addition to VLC data captured by the VLC-enabled lighting system, so as to determine location and movement of the users within a specific environment. The system is further configured to automatically render a floor plan or layout of a location based on the user data and VLC data.

Abstract: A parallel receiver module includes a plurality of signal transmission lines arranged in a first direction; and a receiving semiconductor chip including a plurality of receiving channels arranged in the first direction. The plurality of receiving channels includes receiving circuits configured to receive signals from the signal transmission lines. At least one receiving channel among the plurality of receiving channels further includes a monitor circuit monitoring a receiving level of the signal from the signal transmission line. The at least one receiving channel is connectable with the signal transmission line by switching between the receiving circuit and the monitor circuit.

Abstract: It is disclosed a device for multipole phase division multiplexing and demultiplexing and a spatial division telecommunications system comprising the multiplexing and demultiplexing devices. The multipole phase demultiplexing device comprises a cascade of a beam transformer and a phase corrector, wherein the beam transformer performs a circular-sector transformation of a plurality of multipole phase electromagnetic beams. The multipole phase multiplexing device comprises a cascade of a beam transformer and a phase corrector, wherein the beam transformer performs a combination of |m | circular-sector transformations of a plurality of tilted electromagnetic beams.

Abstract: Examples described herein relate to a receiver training method. To configure a static gain for at least one static gain amplifier and a target amplitude for a dynamic gain amplifier, a dynamic gain adjustment is disabled and the dynamic gain amplifier is configured to apply a predetermined fixed gain to the static gain amplified signal to generate a test signal. Furthermore, an effective static gain magnitude for at least one static gain amplifier and an effective amplitude for the test signal are determined based on a link performance metric. The static gain is set to the effective static gain magnitude, and a target amplitude for the dynamic gain amplifier is set to the effective amplitude. Then, the dynamic gain adjustment may be enabled to maintain an amplitude of a dynamic gain amplified signal at an output of the dynamic gain amplifier at the target amplitude by varying the dynamic gain.

Abstract: The present specification provides a method for transmitting at least one beam, performed by a device, in a wireless communication system, in which the at least one beam is transmitted to another device and a measurement result of the at least one beam is received from the another device, wherein the at least one beam is a beam generated on the basis of a laser signal being incident on the metasurface, the laser signal passing through a phase controller or a delay controller before being incident on the metasurface.

Abstract: The invention relates to an optical communication connection device, which includes an optical receiving unit, an optical transmitting unit, a circuit board and a connection interface. The optical receiving unit and the optical transmitting unit are connected to the connection interface through the circuit board, and the connection interface is used to connect to an external circuit board. The connection interface has a plurality of first connection terminals connected to the circuit board and a plurality of second connection terminals being used to connect to the external circuit board. The second connection terminal is substantially parallel to the external circuit board, and is connected to the external circuit board through surface mount technology, which is not only conducive to reduce the size of the optical communication connection device, but also improve the high-frequency characteristics thereof.