804 results about "Subframe" patented technology

Apparatus and methods are provided to enhance communications for NTN. In some aspects, a base station (BS) comprises a processor configured to schedule an uplink transmission in response to an uplink transmission request from a user equipment (UE) using one or more subframes ranging from a first uplink subframe to a last uplink subframe. The processor is further configured to determine or receive a timing advance (TA) indicating amount of subframes transmitted during a time delay between the UE and the BS and schedule a downlink transmission aligned with the uplink transmission. The downlink transmission is blocked from subframes ranging from TA plus one or more subframes ahead of the first uplink subframe to TA minus one or more subframes ahead of the last uplink subframe. The processor is further configured to transmit and receive, via a non-terrestrial equipment, the uplink and the downlink.

The invention discloses a communication-detection integrated sonar signal design method and device based on multi-pulse composite modulation, and the method comprises the steps: dividing a total frame period into a detection sub-frame and a communication sub-frame, enabling the detection sub-frame to achieve the high-resolution distance measurement through employing a bidirectional linear frequency modulation (BILFM) signal, a communication sub-frame adopts a multi-frequency multi-phase composite modulation (MTPM) signal to realize high-bit-rate data transmission; after band filtering, orthogonal demodulation, low-pass filtering and down-sampling preprocessing are carried out on detection sub-frame echoes, distance and speed information is extracted by adopting fast-time low-sampling two-dimensional fast Fourier transform (2D-FFT), unambiguous Doppler frequency is recovered by utilizing the Chinese remainder theorem (CRT), and accurate speed measurement of long-distance and high-speed targets is realized; a communication subframe receiving signal is subjected to IQ demodulation after down-conversion, Costas loop carrier synchronization and matched filtering, and multi-frequency multi-phase coded data are extracted. According to the method, the time-frequency collaborative design of detection and communication is realized, the distance resolution and the speed measurement range are considered, and the signal bandwidth utilization rate and the underwater information transmission reliability are remarkably improved while the system complexity is kept low. The device comprises a processor and a memory, and an executable program for implementing the method is stored in the memory. The technology can be widely applied to the fields of unmanned underwater vehicles, ocean monitoring, underwater sensing networks and the like.

A subframe mount of a front subframe comprising a vehicle frame. The subframe mount comprises a main body configured to receive a securing feature of a frame body of the vehicle frame. The subframe mount also comprises an open-ended slot configured to enable translation of the securing feature independent of the subframe mount in response to an impact event.

Embodiments of this application disclose a data transmission method and apparatus, a device, and a storage medium, and relate to the field of optical communication technologies. In a coherent optical transmission system with dual-polarization transmission and single-polarization reception, a transmit end sends a data frame including a subframe including reference pilot information, a data unit, and a corresponding redundant code, where a 1st subframe in each data frame includes more reference pilot symbols than other subframes. A receive end performs parameter adjustment on a correction function based on pilot information and the reference pilot information in the received data frame.

The invention discloses a front subframe lightweight design method and device based on RMNN, a medium and a program product, and the method comprises the steps: (1) constructing three simulation models of weight, stress and modal of a front subframe, and deducing a lightweight design model containing stress and modal constraints; (2) generating a population based on a uniform experimental design and a correlation criterion, performing simulation evaluation on the population, and constructing a database; (3) constructing a network architecture and training an RMNN; (4) generating a candidate frame set according to a random preferential strategy and the RMNN; and (5) establishing a radial basis function model, screening an optimal frame, performing simulation evaluation, updating the database and the population, returning to the step (3) until the optimization target reaches the standard, and outputting an optimal solution of the optimization parameter. According to the method, the feasible region is quickly searched through the RMNN, the problems that the high-dimensional design space search efficiency is low and the feasible region is difficult to recognize under multiple constraints are further solved in combination with the radial basis function model, and quick optimization can be carried out for the lightweight design of the front subframe.

The invention relates to an integrated aluminum alloy hollow auxiliary frame and a liquid die forging method thereof. According to the liquid die forging method of the integrated aluminum alloy hollow auxiliary frame, the composite liquid die forging technology combining vertical injection, horizontal pressurization, center pouring and a radiation type multi-ingate outlet is adopted, the inorganic sand core and the preheating core setting technology of the inorganic sand core are combined, and the problems that the sand core is prone to crushing and sand burning is serious are effectively solved; meanwhile, the feeding process is optimized through a multi-stage pressurization curve, so that the smoothness of the inner wall of a cavity of the product reaches 0.2 mm, eutectic silicon is refined to 5-10 microns, the secondary dendritic crystal spacing of alpha dendrites is smaller than 20 microns, the strength deviation of the obtained product is smaller than 15 MPa, the elongation deviation is smaller than 1.5%, X-ray flaw detection reaches the 1-2 level, the process yield is 60-80%, and the product quality is improved. The defects that when the integrated aluminum alloy hollow auxiliary frame is prepared through an existing liquid die forging process, a sand core is prone to being crushed, sand burning is serious, the performance deviation is large, and the process yield is low are successfully overcome.

Provided are an information determination method and apparatus, a device, and a storage medium. The information determination method is applied to a first node and includes the following: detecting a machine-type communication physical downlink control channel (MPDCCH) on a first subframe, where the MPDCCH carries downlink control information (DCI), and the DCI includes a signaling field indicating a value of a physical downlink shared channel (PDSCH) scheduling delay; and determining a second subframe of PDSCH transmission based on the value of the PDSCH scheduling delay.

An apparatus including a non-transitory memory including instructions stored thereon for monitoring synchronous signals and physical broadcast channels (SSBs) from a network node. The apparatus also includes a processor, operably coupled to the non-transitory memory, configured to execute a set of instructions. The instructions include configuring the apparatus for a STTC (SSB Transmission Timing Configuration). The STTC is a time interval with plural locations accommodating transmission of the SSBs. The instructions also include monitoring the STTC for the SSBs. The instructions further include determining a first one of the SSBs in a first slot of a subframe in a scheduled SSB transmission in the STTC has been transmitted at a first scheduled location, where the transmission of the first one of the SSBs is based upon confirmation of a successful Listen Before Talk (LBT) available channel prior to the scheduled SSB transmission in the STTC.

The invention discloses a front subframe structure MaOP method and device based on TPT, a medium and a program product, and the method comprises the steps: (1) constructing a MaOP design model capable of optimizing the weight, modal, strength and rigidity at the same time based on front subframe longitudinal beam and load analysis; (2) generating an elite population based on a diversity criterion and Latin hypercube, obtaining target values of the elite population, establishing a data set, and constructing a radial basis function model; (3) designing co-evolution operation driven by TPT to generate a candidate frame set; (4) an individual potential evaluation criterion is constructed based on the advantage and disadvantage target sets, and an optimal candidate frame is screened; and (5) obtaining each target value of the optimal candidate frame, updating the data set and the radial basis function model, returning to the step (3) until all optimization targets meet requirements, and outputting an optimal parameter value. According to the method, a TPT-driven coevolution mechanism is adopted, radial basis function model prediction is combined, and the multi-performance index optimization process for the front auxiliary frame can be effectively balanced.

The embodiment of the invention provides a satellite terminal control method and device, electronic equipment, a storage medium and a program product. The method comprises the following steps: acquiring synchronization information block data of a broadcast beam; creating measurement data according to the synchronization information block data, wherein the measurement data is used for predicting a scanning period and a coverage subframe number of a broadcast beam; inputting the measurement data into a pre-trained prediction model, and outputting a scanning period and a coverage subframe number of a broadcast beam; the satellite terminal is adjusted according to the scanning period of the broadcast beam and the coverage subframe number, the power consumption of the adjusted satellite terminal is obtained, and the power consumption of the satellite terminal is reduced.

The disclosure relates to a physical downlink control channel (PDCCH) in a data region. In some embodiments, there is provided a user equipment (UE), comprising: at least one antenna; at least one radio, configured to perform wireless communication using at least one radio access technology; and one or more processor coupled to the at least one radio, wherein the one or more processor are configured to case the UE to: determine configuration information of a time-frequency resource set (TFRS), located in a data region of a subframe, for conveying a PDCCH from a network (NW) device; and monitor for the PDCCH in the TFRS based on the determined configuration information of the TFRS. A first part of the configuration information of the TFRS may indicate Demodulation Reference Signals (DM-RSs) for the PDCCH are front-loaded.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may wake up, starting at a subframe, based at least in part on a subframe index of a resource cycle and a system frame number (SFN) wraparound offset that accounts for accumulated lengths of a hyper frame. The UE may receive a data burst during the subframe. Numerous other aspects are described.

An adjustable automobile subframe alignment fixture for inspecting a subframe includes one or more bases; one or more rails, connected to the one or more bases, having indexing positions to accommodate multiple sized subframes; and one or more connection points, adjustably mounted on the one or more rails, configured to receive risers and / or jigs for adjusting to a geometry of the subframe and allowing structural integrity of the subframe to be determined. If the geometry of the subframe matches the geometry of the fixture, the subframe is structurally sound. If the geometry of the subframe fails matches the geometry of the fixture, the subframe lacks structural integrity.

This utility model relates to the field of drone transportation technology, specifically to a transport vehicle for firefighting drones. It includes a chassis, a cabin, and auxiliary mechanisms. The auxiliary mechanisms include a subframe, a side skirt, a roof railing, a rear ladder, a lifting antenna, and a lighting device. The chassis, cabin, and subframe form the transport vehicle structure, and the inspection drone and firefighting drone are placed inside the cabin, thus facilitating drone transportation. Furthermore, an 8KW generator and a 5KW generator are installed in the side skirt to provide power during operation. The lighting device provides illumination assistance. An electric / manual integrated lifting antenna is located on the left rear of the vehicle, which, when raised, enables drone signal reception and transmission. This solves the problem of insufficient power supply for existing drone transport devices during drone operation.

The application provides a kind of intelligent metasurface assisted near-field time division integrated sensing method and system, it is related to wireless communication field.The application designs integrated sensing system by introducing RIS and single antenna receiver, avoids complex full-duplex base station and multi-antenna receiver, significantly reduces hardware complexity and implementation cost under the premise of ensuring high-quality communication and sensing performance;The adjustable frame structure designed separates the communication subframe and the sensing subframe completely, decouples the communication beam optimization and the sensing signal design, respectively realizes the communication and sensing functions in a purer signal environment;In the communication subframe, the communication and rate maximization are realized, and in the sensing subframe, the sensing capability is enhanced through the transmission beam pattern matching, which significantly improves the overall communication rate and sensing accuracy of the system;Finally, a virtual multi-dimensional receiving signal of multiple passive targets in the near field of RIS is constructed through repetition coding design, and then the 2D-MUSIC algorithm is used to estimate the target angle and distance parameters.

The embodiment of the invention discloses a data transmission method, a data transmission device and a data transmission system, which can be compatible with the existing 400ZR +, 800ZR and 800ZR + DSP (Digital Signal Processor) framing scheme, are more beneficial to hardware implementation, and can also be suitable for scenes adopting multi-wave or multi-subcarrier transmission in the future, such as 800Gbps multi-subcarrier transmission adopting QPSK (Quadrature Phase Shift Keying) modulation, 1.2 Tbps multi-subcarrier transmission adopting 16QAM (Quadrature Amplitude Modulation) modulation and 1.6 Tbps multi-subcarrier transmission adopting 16QAM modulation. And even transmission scenes with higher speed such as 2.4 T / 3.2 T and the like can be realized. The method comprises the steps that W data frames are sent, in one polarization direction, the number of symbols included in any data frame is 87552, each data frame comprises 12 subframes, the number of symbols included in each subframe is 7296, and W is an even number.

The invention relates to the technical field of numerical control machine tool control, and discloses a rapid tool changing method and system for an automobile auxiliary frame machining center, and the method comprises the steps: analyzing a machining program, building a tool multi-dimensional feature space and time sequence association weight matrix, and generating a tool magazine topology layout considering stroke efficiency and static load balance; the tool magazine is controlled to execute the excitation sequence to conduct in-situ kinetic parameter identification, and tool quality parameters are corrected; generating a full-path position-speed coupling control map defining a local speed upper limit in combination with the geometric curvature of the path and the dynamic constraint; the process remaining processing time is compared with the shortest motion time in real time, and an adaptive speed scaling factor is calculated to generate a dynamic speed instruction. The problems of load unbalance and turning impact during high-speed operation of the heavy tool magazine are solved, mechanical vibration and system energy consumption are remarkably reduced on the premise that the machining takt is guaranteed, and tool changing safety is improved.

The utility model discloses a tray tool, and relates to the technical field of front auxiliary frame installation, and the tray tool comprises a tray body; the supporting insertion parts at least comprise the first supporting insertion part and the second supporting insertion part, and the first supporting insertion part and the second supporting insertion part are used for supporting front auxiliary frames of different vehicle types; the locking structure is fixedly arranged on the tray body, and the locking structure is used for locking or releasing the supporting plug-ins so that the first supporting plug-ins and the second supporting plug-ins can be switched mutually. According to the technical scheme, the production cost of the tool is reduced.

The application discloses a subframe and a vehicle. The subframe comprises two longitudinal frames arranged at intervals along a first direction and a first cross frame and a second cross frame arranged at intervals along a second direction. The first cross frame and the second cross frame both extend along the first direction, and the longitudinal frames extend along the second direction. The longitudinal frames comprise first ends and second ends. The two ends of the first cross frame are respectively inserted into the first ends of the two longitudinal frames, and the two ends of the second cross frame are respectively inserted into the second ends of the two longitudinal frames. The first cross frame is inserted into the first ends along a first insertion direction, the second cross frame is inserted into the second ends along a second insertion direction, and the first insertion direction is arranged perpendicularly to the second insertion direction. Through the above scheme, the subframe can improve manufacturing precision and qualification rate, has low connection difficulty and high stability, and can be applied to different vehicle models.

The utility model relates to special site stockpiling equipment technical field, concretely relates to a movable stockpiling frame with stable support. The stockpiling frame aims at solving the deficiency of the existing stockpiling equipment in the site adaptability, stability and stockpiling flexibility, and its main technical scheme includes main frame, auxiliary frame, discharge gate, travelling motor, conveying motor and other components, and realizes two -way collaborative operation through the longitudinal movement of main frame and the transverse movement of auxiliary frame, ensures the dead angle stockpiling in the rectangular area of the side site track coverage, and the support wing design of the both ends of main frame enhances the stability and safety of equipment under the complex terrain such as slope. The utility model is mainly suitable for the material stockpiling of large -scale operation site such as mine, port, can significantly improve the site utilization and stockpiling efficiency.

The invention relates to the field of auxiliary frame connecting bushings, in particular to a high-wear-resistance anti-aging new energy auxiliary frame connecting bush and a preparation method thereof, and aims at solving the problems that an auxiliary frame connecting bush is insufficient in wear resistance, poor in anti-aging performance and the like. The preparation method comprises the following steps: by taking a modified polyurethane solution as a matrix, sequentially adding modified nano silicon dioxide, modified multi-walled carbon nanotubes and polytetrafluoroethylene micro powder, uniformly mixing through ultrasonic dispersion and mechanical stirring, adding an anti-aging agent and polypropylene glycol dicyclohexyl acetate step by step, and sequentially stirring and uniformly mixing, so as to obtain a finished product. And adding dicumyl peroxide as a cross-linking agent, stirring until the system is uniform, injecting into a mold, carrying out thermal insulation cross-linking and vacuum drying, and demolding to obtain the high-wear-resistance anti-aging new energy auxiliary frame connecting bushing. The high-wear-resistance anti-aging new energy auxiliary frame connecting bush has the characteristics of high wear resistance and aging resistance and excellent mechanical strength and use stability.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive first configuration information indicating a transmission time interval (TTI) bundling resource. The UE may receive second configuration information indicating semi-persistent scheduling (SPS) resources. The UE may detect, during a communication session, an SPS trigger for using the SPS resources in a subframe that is misaligned with a periodicity associated with the TTI bundling resource. The UE may determine whether the SPS trigger is valid based at least in part on a number of TTI bundling grants subsequent to the detection of the SPS trigger that are misaligned with the subframe associated with the SPS trigger. Numerous other aspects are provided.

A UE (200) in a NB-IoT TDD mode NTN is provided. The UE (200) is configured to: operate on two consecutive radio frames according to a frame structure that includes a first radio frame followed by a second radio frame, where: a first subset of subframes of the first radio frame are configured to be unmuted and usable for signaling in the NB-IoT TDD mode NTN; a second subset of subframes of the second radio frame are configured to be unmuted and usable for signaling in the NB-IoT TDD mode NTN; the remaining subframes of the first radio frame and the second radio frame are muted with respect to signaling in the NB-IoT TDD mode NTN; and the first subset of subframes and the second subset of subframes forming eight consecutive subframes.

Outdoor cabinet box comprising a box (100), a door frame (200) and a door leaf (300), wherein the door frame (200) is fixedly connected to the box (100), the door leaf (300) is rotatably connected to the door frame (200), and between a top and a bottoma first gap (1) and a second gap (2) are formed on the underside of the door leaf (300) and the door frame (200); characterized in that the door frame (200) comprises a subframe (210), wherein the subframe (210) comprises a horizontal first plate body (211), a horizontal second plate body (212) and a vertical third plate body (213); the first plate body (211) is arranged higher than the second plate body (212), wherein the first plate body (211) and the second plate body (212) are rigidly connected to each other via the third plate body (213); the first plate body (211) is rigidly connected to the box (100), the second plate body (212) is rotatably connected to the door leaf (300) and the third plate body (213) faces the second gap (2).

The objective is to provide a signal generation device that ensures appropriate distance resolution without increasing the distance measurement time. [Solution] A signal generation device that generates multiple subframes using signals from multiple photoelectric conversion elements to generate a distance measuring frame, wherein the multiple subframes include a first subframe whose exposure period starts after a first period from a first light emission, and a second subframe whose exposure period starts after a second period from a second light emission, and the first subframe has at least a first exposure period and a second exposure period, the period from the third light emission to the start of the second exposure period is shorter than the period from the first light emission to the end of the first exposure period, and the period from the first light emission to the end of the exposure period is longer than the period from the second light emission to the start of the exposure period.

The invention relates to the technical field of die-casting, in particular to an integrated die-casting die for a front subframe of a new energy automobile, which comprises a fixed die frame and a movable die frame, the die-casting die further comprises a fixed die core, a first shaping rod, a second shaping rod, a third shaping rod and a movable die core. The fixed mold core is fixedly arranged on the fixed mold frame; the four first shaping rods penetrate through the fixed mold core and can move in the extending direction of the first shaping rods. The two second shaping rods penetrate through the fixed mold core and can move in the extending direction of the second shaping rods. The multiple third shaping rods penetrate through the fixed mold core in the moving direction of the movable mold frame, and the ends of the third shaping rods extend out of the end face, facing the movable mold frame, of the fixed mold core. And the movable mold core is fixedly arranged on the movable mold frame. According to the invention, the production efficiency is greatly improved, and the equipment, manpower and material costs are reduced.

The utility model provides a kind of screwing formula auxiliary frame device, including multiple I-beams, tee and door frame assembly;Multiple I-beams, tee and door frame assembly are connected with each other, form the overall framework of auxiliary frame, and still be connected with pull rope locking device, inclined support, connecting piece and equipment mounting plate on I-beam by bolt;The I-beam is connected with bearing mounting seat by stand column, and adjusting washer for adjusting the height of stand column is equipped between stand column and I-beam.The utility model is by using screwing structure, and the characteristics of its extension performance are good, energy can be consumed in the impact process of use, and then the impact resistance of auxiliary frame device is improved, and screwing structure is detachable, replaceable, convenient for later maintenance and replacement, and the use performance of auxiliary frame device can be effectively improved.

The utility model discloses an auxiliary frame mounting point structure, a vehicle body frame and a vehicle, the auxiliary frame mounting point structure is applied to a longitudinal beam of the vehicle, and the auxiliary frame mounting point structure comprises a first reinforcing plate, a second reinforcing plate and a sleeve; the first reinforcing plate and the second reinforcing plate are connected to form a fixing cavity, the cavity wall of the fixing cavity is connected with the outer wall of the sleeve, the inner wall of the sleeve is connected with an auxiliary frame, and the first reinforcing plate and the second reinforcing plate are connected with the longitudinal beam. The connecting strength of the auxiliary frame mounting point structure is improved, and the requirement for fatigue durability is met.

The application relates to the technical field of vehicle anti-collision, in particular to a bias collision-resistant auxiliary frame and a vehicle. The bias collision-resistant auxiliary frame comprises an auxiliary frame body with a butterfly-shaped beam structure, and a reinforcing assembly welded with the front end of the auxiliary frame. The reinforcing assembly comprises a pair of longitudinal beams and a front cross beam. The pair of longitudinal beams are symmetrically and spacedly arranged, and the outer side of the longitudinal beam is formed with an outwardly extending outer protrusion. The two ends of the front cross beam respectively penetrate through the corresponding longitudinal beam and are welded with the outer protrusion. The application can effectively reduce the intrusion of the cab, improve the bias collision resistance, realize the lightweight and low energy consumption, achieve the anti-collision target, and has strong practicability and economy.

Embodiments of the present application provide a wireless frequency offset estimation method, device, equipment and storage medium. The method comprises: in an LTE system with a bandwidth greater than 1.4Mhz, obtaining at least one pair of repeated symbols of PBCH in subframe 0; and obtaining a frequency offset of the LTE system according to a time difference between each pair of repeated symbols in the at least one pair of repeated symbols and a correlation result. The technical solution of the embodiments of the present application is used to obtain a frequency offset with higher accuracy according to repeated symbols of PBCH, relative to a frequency offset estimated according to PSS\SSS, after synchronization according to PSS / SSS and before decoding of PBCH, thereby improving downlink receiving performance of LTE in a network searching stage.