2227 results about "Subframe" patented technology

A method can include receiving, by a wireless device, one or more discontinuous reception (DRX) configuration parameters indicating: a first DRX cycle; a DRX slot offset; and a DRX on-duration timer. The method can also include determining, for starting the DRX on-duration timer, a DRX cycle. The DRX cycle can be the first DRX cycle, based on the one or more DRX configuration parameters not indicating the second DRX cycle with the non-integer value. Alternatively, the DRX cycle can be the second DRX cycle, based on the one or more DRX configuration parameters indicating the second DRX cycle with the non-integer value. A parameter of the one or more DRX configuration parameters can indicate the non-integer value of the second DRX cycle. The method can further include starting, after the DRX slot offset from a subframe determined based on the DRX cycle, the DRX on-duration timer.

The invention discloses an automobile front subframe lightweight design method considering modal constraint. The method comprises the following steps: (1) constructing a front subframe parameterized model and a weight-modal simulation model by adopting CATIA (Computer-graphics Aided Three-dimensional Interactive Application) and Altar Optistruct; (2) establishing a population in a design space based on a space filling Latin hypercube sampling method; (3) constructing a classification cooperation speed updating formula based on a particle swarm algorithm to generate offspring particle individuals; (4) constructing a Gaussian process machine learning model and a fitness evaluation function, and screening an optimal offspring particle individual based on a feasibility rule; and (5) constructing a comprehensive score calculation formula according to a statistical ranking method to determine the updating condition of the population individuals, updating the database and skipping to the step (3) until the optimized structure meets the requirement. According to the method, the coverage capability of the filial generation in the target space is enhanced through the classification collaborative speed updating formula, and the prediction precision of the Gaussian process machine learning model is continuously improved, so that the optimization performance of the lightweight of the front subframe of the automobile is improved.

Systems and techniques are described for wireless communications. For example, a computing device can transmit, to a plurality of wireless communication devices, a message comprising a plurality of available channel subframes. The computing device can receive, on one or more available channel subframes of the plurality of available channel subframes from one or more wireless communication devices of the plurality of wireless communication devices, an initiation request message requesting synchronization with the network device. The computing device can transmit, on the one or more available channel subframes to the one or more wireless communication devices, an initiation response message confirming the synchronization with the network device. The computing device can establish a synchronized connection with the one or more wireless communication devices on the one or more available channel subframes.

The invention discloses an ML-based rear subframe structure lightweight and modal optimization target design method, which comprises the following steps: (1) through three-dimensional modeling, statics analysis and modal analysis, constructing a mathematical model corresponding to the weight of a rear subframe and first-order inherent frequency simulation; (2) generating a population based on a Maximin criterion and a Latin hypercube, and establishing a radial basis function machine learning model; (3) generating candidate offspring individual vectors by adopting a Pbest-driven DPM evolutionary strategy based on an Eplison function; (4) constructing a minimum and maximum Pareto front lifting function to screen real offspring individual vectors; and (5) performing simulation evaluation on a real offspring individual vector, adaptively switching the reference vector type based on a reverse generation distance updating condition, returning to the step (3) until an optimization target meets a design requirement, and outputting an optimal optimization design parameter value. According to the method, the evolution direction is adaptively adjusted according to the population simulation result, and the optimization design effect on the two targets of lightweight and modal optimization is good.

An electrified vehicle includes a front subframe, a rear subframe, and a body that connects the front subframe to the rear subframe so that forces acting on the front subframe and the rear subframe are transmitted through the body. The vehicle also includes a housing coupled to an underside of the body between the front subframe and the rear subframe. An energy storage system is enclosed in the housing and includes a battery and a battery interface configured to electrically couple the battery to at least one component of the electrified vehicle.

The embodiment of the invention provides a data transmission method and a related device. Specifically, a transmitting end acquires a superframe comprising a plurality of subframes, the subframes comprising training symbols and pilot symbols. Wherein in one polarization direction, the number of the training symbols in the sub-frame is NTS, the number of the pilot symbols in the sub-frame is NPS, both the NTS and the NPS are integers greater than 1, the sum of the NTS and the NPS is an odd number, and the sum of the NTS and the NPS is greater than or equal to 5. One symbol in the subframe is both a training symbol and a pilot symbol, each training symbol and each pilot symbol are one of four complex numbers of-A-Aj,-A + Aj, A-Aj and A + Aj, and A is a real number. Every continuous NPG symbols in the subframe comprise one pilot symbol located at a fixed position, and NPG is 96 or 128. And further, the transmitting end transmits the superframe. It can be seen that the interval of inserting the pilot symbols in the sub-frame is larger, and redundancy is reduced. In addition, one symbol in the sub-frame is both a training symbol and a pilot symbol, so that the structure of the sub-frame is simplified.

The invention provides a welding tool for an automobile rear auxiliary frame cross beam, and belongs to the technical field of automobile cross beam welding, the welding tool comprises a base, a rear auxiliary frame main body, an operation table and a welding robot, and the operation table and the welding robot are arranged on the base, and the welding tool further comprises a positioning splicing assembly and a flow guide destressing assembly; protective gas is integrated on the third clamping jaw, the third clamping jaw can effectively guide protective gas flow to a welding seam while fixing the side cross beam, and effective flow guide of the protective gas can be achieved in cooperation with arrangement of the movable spraying pipe; during welding, the impeller is static to block gas, the flow speed is reduced, welding fluid is prevented from splashing and losing due to overlarge airflow impact, and stable combustion of welding arcs is maintained; in the cooling stage after welding is completed, the inductor controls the electromagnetic base to be powered off, gas flow is increased, the cooling speed is increased, meanwhile, vibration is generated to be matched with cooling to eliminate welding residual stress, the stability and reliability of a weldment are improved, the production period can be shortened, and the production efficiency is improved.

Systems, apparatuses, methods, and computer-readable media are provided for a user equipment (UE) in a wireless communication system using an unlicensed spectrum. The UE includes a processor circuitry and radio front end circuitry coupled with the processor circuitry. The processor circuitry is configured to determine UE processing time for a first physical downlink shared channel (PDSCH) transmission and a second PDSCH transmission, and an additional processing time corresponding to the first and the second PDSCH transmissions. The processor circuitry is configured to process a hybrid automatic repeat and request acknowledgement (HARQ-ACK) assessment information for inclusion in a subframe on a physical uplink control channel (PUCCH) following the UE processing time and the additional processing time. The radio front end circuitry is configured to receive the first and the second PDSCH transmissions from a base station, and transmit the HARQ-ACK assessment information on the PUCCH to the base station.

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 provides a point-to-multipoint communication method, device and system, equipment and a storage medium, and belongs to the technical field of optical communication. The method is applied to local side equipment in a point-to-multipoint communication system, and comprises the following steps: acquiring channel parameters of terminal equipment with downlink data currently and the data volume of the downlink data, and generating and sending at least one downlink frame based on the channel parameters of the terminal equipment and the data volume of the downlink data, the downlink frame comprises a plurality of subframes, in each downlink frame, the ith subframe bears management information of the (i + m) th subframe and downlink data of at least one terminal device, and for each subframe, the management information of the subframe comprises an identifier of the terminal device to which the downlink data borne by the subframe belongs and information of an occupied time-frequency resource. By adopting the method disclosed by the invention, point-to-multipoint flexible communication can be realized.

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.

The utility model discloses an auxiliary frame of a new energy vehicle and the new energy vehicle, and the auxiliary frame comprises a first cross beam, a second cross beam, a first connecting piece, a second connecting piece, a third connecting piece, a fourth connecting piece, a first longitudinal beam, a second longitudinal beam and a third cross beam, the third cross beam is arranged between the first cross beam and the second cross beam and is closer to one side of the second cross beam, and two ends of the third cross beam in the length direction are respectively connected with the first longitudinal beam and the second longitudinal beam. The lower end face of the third cross beam downwards protrudes out of the plane where the lower end face of the second cross beam is located in the Z direction, so that the third cross beam plays a role in intercepting obstacles on the ground, a battery arranged behind the auxiliary frame is protected, and the situation that the obstacles on the ground rub the bottom of the battery and collide with the front end of the battery is avoided.

The invention discloses high-fatigue-performance cold-rolled steel for an automobile auxiliary frame and a preparation method thereof, and belongs to the technical field of automobile material preparation. The cold-rolled steel comprises the following chemical components in percentage by mass: 0.06 to 0.16 percent of C, 0.15 to 0.40 percent of Si, 1.0 to 2.5 percent of Mn, less than or equal to 0.02 percent of P, less than or equal to 0.01 percent of S, 0.02 to 0.1 percent of Al, 0.01 to 0.06 percent of Ti, 0.3 to 1.5 percent of Cr, 0.1 to 0.6 percent of Mo, 0.005 to 0.03 percent of Nb and the balance of Fe and inevitable impurity elements. The preparation method comprises the steps of smelting, continuous casting, heating, hot rolling, coiling, acid pickling, cold rolling and annealing. The cold-rolled steel has excellent mechanical properties and fatigue properties, meets the use requirements of steel for the automobile auxiliary frame, can replace currently used hot-rolled automobile structural steel, prolongs the service life of the auxiliary frame, and meanwhile, realizes light weight of an automobile body structure.

One embodiment is a system having a master unit coupled to first and second base station sources having different OTA frame boundary timings, where an access point coupled to the master unit receives fronthaul data for the first and second base station sources, determines a common OTA frame boundary timing, and aligns OTA symbols and frames for the first and second base station sources to the common OTA frame boundary timing. Another embodiment is a system having a base station synchronized with a timing grandmaster and a master unit, synchronized with the timing grandmaster, coupled to the base station. The master unit determines the time of day using the synchronization, identifies a system frame and subframe number using the time of day, acquires configuration information for communications with the base station using the system frame and subframe number, and identifies frame boundary timing using the configuration information.

The invention discloses an automobile rear subframe rigidity and NVH two-target design method, device and medium, and the method comprises the steps: (1) determining an automobile rear subframe optimization variable, and building an automobile rear subframe rigidity and NVH two-target mathematical optimization model; (2) generating a population based on Latin hypercube sampling, and obtaining stiffness values and NVH values of population individuals through simulation analysis; (3) in the first stage, generating a candidate solution through dimension reconstruction, and screening offspring individuals by adopting non-dominated sorting and angle penalty distance; (4) in the second stage, three groups are obtained based on mutual information and differential grouping and used for collaborative optimization to generate candidate solutions, and a multi-criterion method based on machine learning is adopted to screen offspring individuals; and (5) performing simulation evaluation on the offspring individuals, updating the database, updating the population in combination with an angle cosine screening function, and turning to the step (3) until the optimized structure meets the requirement. According to the method, efficient design is realized through an optimization strategy of dimension reconstruction and grouping collaboration.

The embodiment of the invention provides a data transmission method for optical communication and a related device, and solves the problem that a transmission symbol sequence in the prior art cannot be suitable for scenes above 800Gbps. Specifically, a transmitting end acquires a superframe comprising a plurality of subframes, the subframes comprising pilot symbols. Wherein in one polarization direction, the number NPS of pilot symbols in the sub-frame is an even number greater than 0, each pilot symbol is one of four complex numbers, namely-A-Aj,-A + Aj, A-Aj and A + Aj, A is a real number, every continuous NPG symbols in the sub-frame comprise a pilot symbol located at a fixed position, NPG is 96 or 128, the superframe comprises a first type of sub-frame, and the sub-frame comprises a second type of sub-frame. The first type of subframes further comprise NFAW frame synchronization symbols, each frame synchronization symbol is one of four complex numbers including-AFAW-AFAWj,-AFAW + AFAWj, AFAW-AFAWj and AFAW + AFAWj, the AFAW is a real number, and the NFAW is an even number. And further, the transmitting end transmits the superframe. It can be seen that the interval of inserting the pilot symbols in the sub-frame is larger, and redundancy is reduced.

Provided in this disclosure is a hoist system for a Class 3 vehicle. The hoist system is particularly sized for Class 3 vehicles and includes a hoist frame, a subframe, a pivotal connection, a linkage, a plurality of connection brackets, and a winch assembly. Further, the hoist system has a body lock mechanism having a plurality of tabs, a plurality of body lock arms, and connection holes. Also included in the hoist system is an accessory mounting system having a plurality of accessory brackets, horizontal slots, and connection holes.

An after-market subframe bushing support assembly that includes a RS back top bushing member formed as a disc shape with a RS back top bushing member outer diameter and a RS back top bushing member first height, and the RS back top bushing member having a rectangular center opening with rounded corners defined by a pair of RS back top bushing member long sides and a pair of RS back top bushing member short sides, and a RS back top bushing member second height in a second area between the RS back top bushing member short sides and the RS back top bushing member outer diameter. The subframe bushing support assembly reduces noise-vibration-harness compared with other solutions and can easily be installed by car enthusiasts.

The embodiment of the invention provides a data transmission method for optical communication and a related device. Specifically, a transmitting end acquires a superframe comprising a plurality of subframes, the subframes comprising pilot symbols. Wherein, in one polarization direction, the number NPS of pilot symbols in the subframe is an even number greater than 0. Each pilot symbol is one of four complex numbers, namely-A-Aj,-A + Aj, A-Aj and A + Aj, and A is a real number. Each continuous NPG symbols in the subframe comprises one pilot symbol located at a fixed position. The superframe comprises a first type of subframe, the first type of subframe further comprises NFAW frame synchronization symbols, and each frame synchronization symbol is one of four complex numbers of-A-Aj,-A + Aj, A-Aj and A + Aj. One symbol in the first type of subframes is both a pilot symbol and a frame synchronization symbol, and the NFAW is an odd number. And further, the transmitting end transmits the superframe. It should be understood that there is no training symbol in the subframe, which has lower redundancy and simplifies the structure of the subframe.

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.

The invention discloses a communication and conduction integrated navigation information broadcasting method suitable for a long navigation message. The method comprises the following steps: (1) injecting a navigation enhancement message to be broadcasted to a satellite from the ground; (2) the satellite processes the uploaded navigation enhancement message to generate a navigation message frame; (3) carrying out interleaving processing on the navigation message frames to form navigation message subframes; (4) performing CRC-x verification on the navigation message subframes; (5) carrying out 1 / 2 LDPC error correction coding on the navigation message sub-frame after the CRC-x verification; and (6) broadcasting the navigation message after the LDPC error correction coding and the communication signal at the same time, adopting the same waveform and occupying different bandwidth resources. The broadcasting method provided by the invention solves the problem of low frame splicing success rate of the long telegraph text.

An automotive sun visor is disclosed with enhanced functionality and aesthetic appeal for vehicle interiors. The sun visor includes a frame with a rotary detent mechanism housed within a hinge tube, facilitating precise rotational movement and secure positioning. The frame is constructed from two heat-welded plastic frame halves, eliminating the need for an expanded polypropylene layer, and reducing thickness. The sun visor features an integrated mirror made from advanced materials such as gorilla glass or polycarbonate, and LED lamps for illumination. The rotary detent mechanism comprises a detent bar, detent springs, and a detent subframe, providing a clicking action for tactile feedback when the sun visor reaches a stowed position. The sun visor's design allows for axial adjustment and pivotal movement between stowed and operational positions, contributing to safety and comfort within the vehicle.

The present disclosure relates to enabling and disabling of codewords in multi-subframe grants. In particular, dynamic and subframe based enabling / disabling of codewords is enabled even if other control parameters including the resource allocation is performed for multiple subframes. For instance, signal from a scheduling entity to a scheduled entity comprises control information including the resource grant common for multiple subframes and a plurality of codewords for each subframe, and a codeword indication indicating enabling or disabling of one or more codewords for each of the multiple subframes. For each subframe it is determined whether a codeword from the plurality of codewords in said subframes is enabled or disabled according to the codeword indication and / or which codeword is enabled or disabled. The indication of enabling and disabling may alternatively be done by using modulation and coding scheme indicator values which are not associated with a particular modulation and coding scheme.

The invention provides a vehicle body of a vehicle and the vehicle. According to the vehicle body of the vehicle, an auxiliary frame and a battery pack are arranged in the vehicle body; an energy absorption structure is arranged on the side, close to the battery pack, of the auxiliary frame and extends towards one side of the battery pack, and the end, close to the battery pack, of the energy absorption structure is at least partially overlapped with the projection of the battery pack in the front-back direction of the whole vehicle. According to the vehicle body of the vehicle, the energy absorption structure is arranged on the auxiliary frame, and the end, close to the battery pack, of the energy absorption structure is at least partially overlapped with the projection of the battery pack in the front-back direction of the whole vehicle, so that force transmission between the auxiliary frame and the battery pack during vehicle collision is facilitated, and the energy absorption effect during collision is improved; and pulling of the auxiliary frame to the longitudinal beam rear section and the foot pit area can be restrained, and the foot pit invasion amount is reduced.

Embodiments of a User Equipment (UE), generation Node-B (gNB) and methods of communication are generally described herein. The UE may receive, from a gNB, a narrowband physical downlink control channel (NPDCCH) that indicates a number of narrowband internet-of-things (NB-IoT) downlink subframes for a downlink scheduling delay of a narrowband physical downlink shared channel (NPDSCH) in one or more radio frames configured for time-division duplexing (TDD) operation. Subframes of the one or more radio frames may include uplink subframes, NB-IoT downlink subframes for downlink NB-IoT transmissions, and downlink subframes for other downlink transmissions. The UE may determine the downlink scheduling delay based on an earliest subframe for which a count of NB-IoT downlink subframes is equal to the number of NB-IoT downlink subframes indicated in the NPDCCH.

An embodiment rear frame includes a pair of side portions spaced apart from each other in a width direction of a vehicle, a first cross portion connecting front portions of the side portions, and a second cross portion connecting rear portions of the side portions, wherein the side portions and the first and second cross portions together are a unitary one-piece structure, and wherein each side portion includes a front mounting surface on which a front mount of a rear subframe is mounted, a front recessed structure on the front mounting surface, a rear mounting surface on which a rear mount of the rear subframe is mounted, and a rear recessed structure on the rear mounting surface, the front and rear recessed structures each having a pocket shape with an open top and a through hole.

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 detection assembly system and a detection assembly method for a frame bushing, the detection assembly system comprises a press fitting part, a positioning part, a first detection part, a second detection part, a third detection part and a control part, the problem of separation of detection and assembly is solved, the axial rigidity detection of the bushing can be completed in the initial stage of press fitting, and the detection efficiency is improved. Extra detection procedures are not needed, the overall production cycle is greatly shortened, and the method is suitable for the large-batch production rhythm; potential quality hazards caused by sampling detection are eliminated, and abnormal linings are prevented from flowing into subsequent links; the positioning ends of the positioning pieces can be close to or far away from each other, and by combining the supporting design of the guide inclined surfaces, the tool can be adaptive to bushing outer sleeves of different sizes, frequent tool replacement is not needed, and the equipment debugging cost is reduced; while the assembly precision of the bushing is ensured, high efficiency, no damage and full coverage of rigidity detection are realized, the production quality and efficiency of the auxiliary frame are obviously improved, the later rework cost is reduced, and the control performance of the whole vehicle and the stability of NVH (Noise Vibration and Harshness) performance are ensured.

A method includes receiving, by a user equipment (UE) and through Radio Resource Control (RRC) signaling, information of a resource pool for a D2D communication, wherein the information of the resource pool comprises information of a discovery subframe in which a D2D discovery signal is to be communicated, determining that in the discovery subframe, the D2D discovery signal is prioritized over a communication with an evolved NodeB (eNB) unless the communication with the eNB is associated with a random access (RA) procedure, transmitting a RA preamble through a Physical Random Access Channel (PRACH), determining whether the discovery subframe corresponds to a RA subframe in which a RA response for the UE is to be monitored, and in response to determining that the discovery subframe corresponds to the RA subframe, monitoring, by the UE, the RA response during the discovery subframe.