142 results about "Carrier system" patented technology

An extendable controller having a first handle part; a second handle part; an elongate bridge with a first half in sliding engagement with a first bridge-link portion of the first handle part and a second half in sliding engagement with a second bridge-link portion of the second handle part; and an extendable arrangement to synchronously extend and retract the first handle part and the second handle part uniformly in opposite directions relative to the elongate bridge along an extension axis. The extendable arrangement includes a dual-reciprocating-opposite-motion-carrier system having a first reciprocating carrier, a second reciprocating carrier, an opposite motion mechanism to move the first reciprocating carrier and the second reciprocating carrier in opposite directions with respect to the extension axis, a first elongate member coupling the first handle part to the first reciprocating carrier, and a second elongate member coupling the second handle part to the second reciprocating carrier.

An extendable controller having a first handle part; a second handle part; an elongate bridge with a first half in sliding engagement with a first bridge-link portion of the first handle part and a second half in sliding engagement with a second bridge-link portion of the second handle part; and an extendable arrangement to synchronously extend and retract the first handle part and the second handle part uniformly in opposite directions relative to the elongate bridge along an extension axis. The extendable arrangement includes a dual-reciprocating-opposite-motion-carrier system having a first reciprocating carrier, a second reciprocating carrier, an opposite motion mechanism to move the first reciprocating carrier and the second reciprocating carrier in opposite directions with respect to the extension axis, a first elongate member coupling the first handle part to the first reciprocating carrier, and a second elongate member coupling the second handle part to the second reciprocating carrier.

The invention discloses an intelligent reflector assisted user arrival angle estimation method in a multi-carrier ISAC system. In the method, a plurality of users send pilot signals, and each IRS reflects the user signals to a remote radio access unit (RRH). The RRH uploads the received signal to a centralized baseband processing unit pool (BBU) through a forward link; the BBU performs joint processing on the received signals on the plurality of RRHs, and the observation dimension is increased by constructing the frequency domain snapshot observation matrix of the pilot signals on the plurality of subcarriers, so that the estimation precision of the arrival angle from the user to the IRS path is improved. According to the method, frequency domain snapshot information brought by pilot frequency subcarriers is fully utilized, and the angle estimation resolution and robustness are improved. By adopting the scheme of the invention, high-precision user positioning can be realized in a complex environment.

Systems, methods, and apparatuses for PDCCH skipping without channel assignments and on multiple component carriers are provided. An apparatus is configured to receive a configuration for DRX and to receive DCI within a DRX active time. The DCI indicates for the UE to skip PDCCH monitoring for a duration of time within the DRX active time and without a resource assignment for downlink or uplink. The UE is configured to skip monitoring for a PDCCH during the duration of time. Another apparatus is configured to receive a configuration indicating to apply PDCCH skipping to a component carriers(s) and to receive DCI in a component carrier indicating for the UE to skip PDCCH monitoring for a duration of time. The other apparatus is configured to skip monitoring for a PDCCH during the duration of time in the one or more component carriers based on the configuration.

The utility model discloses an air track structure and an air carrier system, and the air track structure comprises a first track body and a second track body which are parallel, have the same height and are arranged at intervals, a protective cover with a U-shaped cross section is arranged between the first track body and the second track body, is connected to the two sides of the first track body and the second track body, and covers the upper parts of the first track body and the second track body; and the protective cover, the first track body and the second track body enclose to form a running channel in which a walking mechanism of the aerial carrier moves. The protective cover is used for protecting the space above the first track body and the second track body in a wrapping manner, so that accumulated dust on the first track body and the second track body cannot be blown off by air blown out by the fan filter unit, and adverse effects caused by the fact that the dust is scattered to a process area are effectively avoided; and the cleanliness of the clean room can be improved.

The present invention provides a method for low-complex estimation of Direction of Arrival (DoA) and Time of Arrival (ToA) in multi-antenna-based communication comprising detecting overlapped paths between a Mobile Station (MS) and a Base Station (BS) operating under said multi-antenna-based communication with scatters present therein involving channel paths represented as Channel Impulse Response (CIR) defined with channel signatures including delay and angle steering vectors, decoupling the channel paths in delay and angle-domain and separately estimate the DoA and ToA of each path with a low computational complexity which is based on one-dimensional low-index based rotation methodology and finally pairing the DoA and the ToA.

Provided in the embodiments of the present disclosure are a carrier phase tracking method and device for an orthogonal frequency division multiplexing (OFDM) multi-carrier system. The method includes: performing frequency domain tracking on a received current OFDM symbol and determining a phase of each subcarrier; analyzing a phase curve of all subcarriers and determining an inter-symbol phase average offset, and the inter-symbol phase average offset is used to characterize an estimated value of a difference obtained by subtracting a second value from a first value, the first value is a carrier phase value of the current OFDM symbol, and the second value is an estimated value of a carrier phase of a previous OFDM symbol; and performing time domain tracking by using the inter-symbol phase average offset as an input phase and determining an estimated value of a carrier phase of the current OFDM symbol.

A carrier system is disclosed for use in an object processing system. The carrier system includes a carrier body including a plurality of containment areas for respectively receiving a plurality of objects at a loading station, a motion actuator for moving the carrier body from the loading station to a distribution area, and an ejection actuation system for actuating the carrier body to deposit each of the plurality of objects into different destination locations.

The present invention relates to a head wearable carrier system (10) configured to have a beamformed speaker system (16), where the carrier system (10) is configured to: position the beamformed speaker system (16, 16a, 16b) in use near a side of at least one ear (14), where the beamformed speaker system (16, 16a, 16b) is positioned near a side of the at least one ear (14), and where the beamformed speaker system (16, 16a, 16b) is positioned near the side of the at least one ear (14), where the beamformed speaker system (16, 16a, 16b) is positioned near the side of the at least one ear (14). The beamformed audio signal (15) is directed towards an ear channel opening (18) of the at least one ear (14).

The invention relates to the technical field of forklift loading and unloading equipment, in particular to a fork arm carrier system capable of forking goods bidirectionally. The hanging frame is arranged on the fork arm carrier in a lateral sliding manner; the sliding frame is arranged on the hanging frame in a front-back sliding manner; and the pallet fork is arranged on the sliding frame. The pallet fork is arranged at the bottom of the sliding frame in a lateral sliding mode. The driving mechanism drives the pallet fork to transversely move and slide in two directions relative to the sliding frame so as to adjust the extending position of the pallet fork relative to the sliding frame, and loading areas in different directions are formed; the fixing device is used for pressing the pallet fork after the pallet fork moves in place to prevent displacement; the sliding direction of the hanging frame is parallel to the pallet fork, and the hanging frame moves to control advancing and retreating of the pallet fork loading area. The scheme has the effects of improving the narrow channel operation efficiency and optimizing the storage space utilization rate.

The present invention belongs to the field of gene therapy in the medical category, and particularly relates to use in restoring, by using overexpression of a normal gene, hearing of a patient with hereditary hearing loss caused by gene mutation or deficiency. The present invention relates to a dual-carrier system for expressing an OTOF protein. The dual-carrier system comprises two nucleotide sequences: a first nucleotide sequence comprising two ITR sequences and a gene expression cassette inserted between the ITR sequences; and a second nucleotide sequence comprising two ITR sequences and a gene expression cassette inserted between the ITR sequences. Meanwhile, provided is an adeno-associated virus packaged in the above carrier. The above carrier and virus can restore binaural hearing by means of uniaural administration in the field of large-gene dual-carrier delivery in deafness gene therapy.

Systems and methods are described, and one system includes a three-dimensional (3D) geometric tracker connected to a multiband (MB) inverse synthetic aperture array radar (ISAR), and a classification / alarm logic. The MB ISAR includes spatially distributed radar transmitters (TXs) and receivers (RXs), a TX / RX allocation logic, and a tomographic (TM) image logic. The TX / RX allocation logic is configured to receive 3D tracking data from the 3D geometric tracker, indicating subject 3D position and 3D orientation and, in response, dynamically allocate TXs and RXs to maintain MB illumination of and maintain MB reception of multiple scatter angles from subjects. The TM image processor is configured to construct TM images from the scatter angles, using 3D tracking data, for input to the classification and alarm logic. Optionally, the TX / RX resource allocation logic is configured to receive situation feedback data, for feedback adjusting of allocation of TXs and RXs.

An apparatus and method for closed loop controlled cooling in a wafer processing system is provided. In one aspect, a substrate carrier system includes a substrate carrier head including a carrier body and a resilient membrane attached to the carrier body. The resilient membrane has a first surface configured to contact a surface of a substrate and a second surface opposite the first surface. The carrier head also includes a membrane cavity formed along the second surface of the resilient membrane, an input manifold configured to supply a fluid to the membrane cavity, and an output manifold configured to remove the fluid from the membrane cavity. The input manifold and the output manifold are configured to provide the fluid such that the fluid has a substantially laminar flow across the membrane cavity.

This consists of a frame system made of aluminum or similar lightweight material, raw or treated to be weather-resistant.

Systems, methods, apparatuses, and computer program products for a fallback for unequal carrier bandwidth in fragmented carriers. A method may include receiving, from a network element via a network connection, a transmission schedule over a bandwidth of a first component carrier and a bandwidth of a second component carrier. The method may also include performing measurements on the second component carrier and on the first component carrier comprising a second bandwidth part of the first component carrier and a first bandwidth part of the first component carrier. The method may further include receiving, from the network element based on the measurements, a scheduling restriction on the second bandwidth part of the first component carrier. Additionally, the method may include restricting transmission to the network element based on the scheduling restriction.

A method for all-digital single-carrier symbol timing synchronization under arbitrary oversampling ratios belongs to the field of communication signal processing. The received signal sampling points are transformed into the frequency domain through DFT; the signal is matched filtered by point-by-point multiplication in the frequency domain; the symbol timing deviation of the signal is estimated using the Godard method, and the estimation result drives a numerically controlled oscillator after passing through a loop filter; the sliding of the sampling point and the frequency domain compensation of the timing deviation are determined by the phase accumulation and overflow of the numerically controlled oscillator, the frequency domain aliasing area and the length of the IDFT are calculated according to the oversampling ratio, and the signal sampling points are converted to the time domain through the IDFT to obtain the recovered symbols, thereby realizing all-digital single-carrier symbol timing synchronization under arbitrary oversampling ratios and adapting to arbitrary oversampling ratios. The present invention is applicable to the field of communication signal processing and is used to expand the scope of application of single-carrier systems.

The present disclosure provides a rack assembly unit and a carrier rack server system. The rack assembly unit is used to install a control unit (130) to a carrier rack server system (500), comprising: a rack frame (110), a tray (150) for receiving the control unit. The tray is movably connected to the rack frame at a coupling mechanism, and the coupling mechanism provides movement of the tray between a first open position and a second closed position relative to the rack frame. In the first open position, the tray is separated from the rack frame to facilitate user access to the tray and the control unit that can be received in the tray. In the second closed position, the tray is fully inserted relative to the rack frame and the control unit located in the tray is set in a control unit working position thermally coupled to a cold plate to provide cooling of components of the control unit. A carrier rack server system is also provided, comprising one or more rack assembly units for connecting a controller to a carrier system.

An extendable controller having a first handle portion, a second handle portion, an elongate bridge having a first half portion in sliding engagement with a first bridge portion of the first handle portion and a second half portion in sliding engagement with a second bridge portion of the second handle portion, and an extendable arrangement for uniformly synchronously extending and retracting the first handle portion and the second handle portion in opposite directions relative to the elongate bridge along an extension axis. The extendable arrangement includes a dual reciprocating counter-moving carrier system having a first reciprocating carrier, a second reciprocating carrier, a counter-moving mechanism for moving the first reciprocating carrier and the second reciprocating carrier in opposite directions relative to the extension axis, a first elongate member coupling the first handle portion to the first reciprocating carrier, and a second elongate member coupling the second handle portion to the second reciprocating carrier.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for applying non-linearity to digital subcarriers. A receiver includes a detector circuit operable to receive a first optical signal over an optical link, the first optical signal carrying first data. The receiver includes a carrier recovery estimation circuit operable to generate compensated data by correcting errors in the first data. The receiver includes a non-linear coefficient estimation circuit operable to (i) receive the compensated data, and (ii) estimate one or more non-linear coefficients, wherein information indicative of the estimated non-linear coefficients is transmitted over an optical network, such that a second optical signal is transmitted based, at least in part, on the estimated non-linear coefficients, the second optical signal being received by the receiver.

According to the flexible reference electrode paste and the manufacturing method thereof, the mode that the silver chloride load is generated in situ through the flaky silver powder is adopted, impedance is low, the potential stability is high, and the anti-interference capacity is high; a carrier system adopts synthetic long-chain bismaleimide modified organic silicon and a furan end-capped nitrile rubber elastomer to form a curing interpenetrating network, microstructure defects caused by stretching are repaired based on Diels-Alder reaction covalent bonds in the heat-preservation and pressure-maintaining thermal forming process, and after curing, high tensile toughness and bending stability and high weather resistance are achieved. The method is suitable for large-scale silk-screen printing technology.

The embodiment of the invention provides a circuit board, a carrier assembly and a circuit board carrier system. The circuit board comprises a board body, the side edge of the board body is provided with a plurality of concave parts which are arranged at intervals, and each concave part is arranged to be inserted by one installation protrusion of the carrier assembly. The circuit board provided by the embodiment of the invention can have a relatively large layout area, relatively low layout difficulty and relatively low cost.

The application discloses an asynchronous distributed large-scale MIMO general filter multicarrier active user detection method, which is suitable for communication field use. A signal model of a frequency domain receiving signal of an asynchronous large-scale MIMO general filter multicarrier system is given first, and even components of the frequency domain receiving signal not influenced by inter-subband interference and inter-carrier interference are obtained; the asynchronous active user detection problem is expressed as a maximum likelihood estimation problem, then in order to solve the discontinuous and non-convex l0 norm constraint caused by asynchronous transmission, an equivalent penalty reconstruction form is introduced; further, a detection algorithm is provided, which can meet the highly non-convex constraint in a gentle way with the increase of iteration times, converges to a stable point of the original asynchronous active detection problem, and achieves good detection performance.

This invention discloses a method for precise airdrop and rapid in-flight alignment based on inertial navigation / satellite integrated navigation. The method includes: after the navigation device is powered on, establishing a carrier and navigation inertial coordinate system through inertial solidification; periodically acquiring angular rate and specific force data from the inertial measurement unit and position and velocity data from the satellite receiver; sequentially calculating carrier system tracking, specific force integration, navigation system tracking, and acceleration integration; and recursively solving the problem using a Rodrigues parameter multi-vector attitude determination algorithm to calculate the real-time attitude matrix, repeating this process until alignment is complete. This invention simplifies the initial alignment problem without initial values ​​for arbitrary attitudes into an unconstrained linear optimal estimation problem for Rodrigues parameters, utilizing specific force and acceleration integration as measurement information, and fully utilizing all effective data during the alignment process. It requires no initial attitude information and can rapidly complete alignment under complex dynamic base conditions such as airdrop swaying and rotation, outputting attitude results in real time, significantly improving alignment accuracy and speed.

The invention relates to the technical field of communication, and particularly discloses a power line carrier communication method supporting safe partition access of a power distribution microgrid, which comprises the following steps of: converting service data to a parallel sub-channel of a multi-carrier system through a serial / parallel converter; carrying out frequency hopping on the parallel subcarrier frequency; accessing the two levels of security partitions into a frequency hopping strategy to realize concurrent communication of the two levels of security devices; the parallel sub-channel signals are superposed to form a frequency hopping multi-carrier signal; a receiving end receives signals and sends the signals to Na demodulation branches for dehopping to obtain dehopping signals of each branch, then demodulates the dehopping signals to obtain demodulated signals, converts multiple paths of demodulated signals through a parallel / serial converter to obtain a serial data set, and finally obtains sending data. The method has the advantages that the high-reliability and high-frequency-efficiency communication target of the high-safety area can be achieved, the services of the low-safety area are conversely achieved, the services of the two safety areas exist in a co-fusion mode at the same time, and the method is more suitable for simultaneous access of multi-element heterogeneous services in the power distribution micro-grid.

The invention discloses a signal recovery method assisted by spatial modulation and space-time codes, which comprises the following steps of: 1, performing spatial modulation on information bit stream groups according to the number of time slots and the number of carriers to obtain spatial modulation symbols; 2, mapping the spatial modulation symbols into a space-time coding structure; 3, performing orthogonal time-frequency-space multi-carrier modulation on the spatial modulation symbols with the same transmission period, and transmitting the data symbols on a plurality of transmitting antennas respectively; and step 4, carrying out signal detection recovery on the transmission data symbols obtained in the step 3 based on the special sparsity of the signal structure. The method is used for recovering various source end signals which cannot be directly measured, high transmission rate and high diversity gain are realized, and the problems of poor signal detection performance and relatively high calculation complexity in the signal recovery process of a multi-antenna multi-carrier system are solved.

Provided are a method for channel detection, a terminal device and a network device, the method comprising: a terminal device determining a PDCCH detection capability corresponding to a first carrier in a plurality of carriers according to one or more of the following parameters: a first parameter for indicating the size of the bandwidth of the first carrier; the second parameter is used for indicating a distribution coefficient of the PDCCH detection capability corresponding to the first carrier; and the third parameter is used for indicating the total capability of PDCCH detection corresponding to a target carrier in the plurality of carriers, and the target carrier and the first carrier have the same carrier attribute. In a multi-carrier system, according to the embodiments of the present application, the PDCCH detection capability corresponding to the carrier is determined according to factors such as the bandwidth of the carrier of the terminal device, so that the distribution of the PDCCH detection capability on each carrier is more reasonable.

The application relates to the technical field of computer data processing, and provides a self-adaptive demodulation shift method and device applied to a power carrier system and a storage medium.The application realizes cross-level closed-loop optimization from high-level semantic understanding to bottom-level signal parameter decision by cooperatively modeling a device behavior semantic field of a power internet of things and a physical layer demodulation shift parameter space; through cross-frame dynamic difference coding and orthogonal time sequence injection of a video, the application realizes integrated coupling of self-correction of demodulation shift parameters of the power carrier signal and business logic verification, effectively solves the demodulation parameter mismatch problem caused by channel environment change and power business context switching, and can feed back and correct the demodulation parameters when detecting power business logic abnormalities, thereby ensuring the reliability and self-adaptive maintenance of a power carrier communication link and business continuity.

A transmission of information from a secondary to a primary node occurs in a plurality of transmission instances which are logical time durations. A secondary node receives an allocation of periodic transmission instances for a scheduling request indicator (SRI) and an allocation if periodic transmission instances for a sounding reference signal (SRS). In a particular transmission instance allocated for the transmission of both SRS and SRI, the secondary node transmits the SRS without transmitting the SRI if a scheduling request is not pending; otherwise, the secondary node transmits at least the SRI.

The application relates to a Lie group strapdown inertial navigation error model based on a carrier system quaternion attitude error, which comprises that the quaternion attitude error can be divided into a navigation system quaternion attitude error and a carrier system quaternion attitude error, the application first deduces an attitude error model based on the carrier system quaternion, then on the basis, a Lie group strapdown inertial navigation error model based on the carrier system quaternion attitude error is proposed and deduced, the model has obvious advantages in the aspects of combined navigation positioning precision, error convergence speed and filter robustness, and the advantages are more prominent especially under the condition of large misalignment angle. Through experiment comparison of the advantages and disadvantages of four models, the application improves the deficiency of the existing literature on the combined navigation model under the condition of large misalignment angle, and the model can complete high-precision nonlinear combined navigation in a short time under the condition of large misalignment, and meets the requirement of high-precision combined navigation.