14 results about "High speed train" patented technology

A user equipment (UE) is configured to receive, from a serving base station, a configuration for a control resource set (CORESET) including two transmission configuration indicator (TCI) states for a frequency resource, wherein a first TCI state is associated with a beam transmitted from a first transmission and reception point (TRP) and a second TCI state is associated with a beam transmitted from a second TRP, determine, for the beams transmitted from each of the first and second TRPs, respective one or more reference signal (RS) resources to monitor for radio link monitoring (RLM) or beam failure detection (BFD) and monitor the RS transmitted from the first TRP using the first TCI state and the RS transmitted from the second TRP using the second TCI state.

The invention provides a method, a device, a medium and a computer program product for communication. The method comprises the following steps: determining that a plurality of candidate cells meet a switching condition and a high speed train (HST) condition is met; in response to the determination, selecting a target cell from the plurality of candidate cells based at least in part on frequency spacing parameters of the plurality of candidate cells; and performing a handover to the selected target cell.

1. Name of the designed product: amusement machine (high speed train). 2. Use of the designed product: for entertainment. 3. Design points of the designed product: in shape. 4. Picture or photo best showing the design points: perspective view. 5. The bottom and top surfaces of the designed product are parts not easily seen or not seen during use, so the elevation view is omitted.

The underground magnetic suspension ultra-high-speed train vacuum tunnel is located at the position 50-100 m underground and comprises a plurality of sections of vacuum pipelines and station channels which are arranged at intervals, and rails are laid in the vacuum pipelines and the station pipelines; a cabin door group is arranged in the station channel and comprises four cabin doors which are arranged in sequence and can be opened and closed, namely a cabin door I, a cabin door II, a cabin door III and a cabin door IV, a waiting cabin I is arranged between the cabin door I and the cabin door II, a waiting cabin II is arranged between the cabin door III and the cabin door IV, a passenger getting-on and getting-off cabin is arranged between the cabin door II and the cabin door III, and an in-out elevator is arranged between the passenger getting-on and getting-off cabin and the ground; a plurality of vacuumizing openings and air supply openings are formed in the vacuum pipeline, the waiting bin I and the waiting bin II, air supply openings are formed in the getting-on and getting-off bin, each vacuumizing opening is provided with an evacuator, and each air supply opening is provided with an air feeder; and during normal passing, the air pressure in the vacuum pipeline is 10% of one standard atmospheric pressure. The technical scheme does not occupy the ground surface area and prevents noise from disturbing residents.

The application discloses a rare earth lubricated high-speed train brake shoe and a preparation method thereof. The train brake shoe comprises mixed powders of iron and copper, mixed powders of flaky graphite and granular graphite, molybdenum disulfide, alumina fiber, high-carbon chromium iron powder, chromium powder and rare earth element powder. The prepared high-speed train brake shoe is prepared through a powder mixing, cold pressing forming and hot pressing sintering process, and has the advantages of low cost of raw material powder, avoidance of the dispersion problem caused by nano powder, promotion of the sintering densification process by the addition of rare earth elements, simple preparation process of the whole brake shoe material, easy scale production, and the like. The cooperative design of chromium and rare earth elements enables the brake shoe material to have the ability of self-adaptive adjustment with the change of braking conditions. The iron-copper-based brake shoe prepared by the method can be well matched with a carbon ceramic brake disc at 400km / h and above, and realizes stable and high friction coefficient and wear resistance.

Methods, systems, and devices are described for wireless communication. A base station, which can include at least two transmission reception points (TRPs) adjacent to a high speed train (HST), can transmit, to a user equipment (UE) on the HST, an indication of a quasi co-location (QCL) relationship, the indication indicating a relationship between a plurality of tracking reference signals (TRSs) and a demodulation reference signal (DMRS) of a data channel. The plurality of TRSs can include a first TRS and a second TRS. The UE can receive, from a first TRP, the first TRS associated with a time occasion of the data channel and receive, from a second TRP, the second TRS associated with the time occasion of the data channel. The UE can perform, based on the indication of the QCL relationship, a channel estimation procedure for the data channel based on the DMRS, the received first TRS, and the received second TRS.

The present application relates to devices and components including apparatus, systems, and methods to provide intra-frequency measurement enhancement in new radio high speed train.

Methods, systems, and devices for wireless communications are described. A base station that may include at least two transmission reception points (TRPs) next to a high speed train (HST) may transmit, to a user equipment (UE) on the HST, an indication of a quasi co-location (QCL) relationship indicating a relationship between a plurality of tracking reference signals (TRSs) and a demodulation reference signal (DMRS) of a data channel. The plurality of TRSs may include a first TRS and a second TRS. The UE may receive, from a first TRP, the first TRS associated with an occasion of the data channel, and receive, from a second TRP, the second TRS associated with the occasion of the data channel. The UE may perform, based on the indication of the QCL relationship, a channel estimation procedure for the data channel based on the DMRS, the received first TRS, and the received second TRS.

To provide a method and a system for train active resistance reduction solving a technical problem of difficulty in reduction of energy consumption for travelling of a high speed train due to poor effect of a train aerodynamic resistance reduction method.SOLUTION: A method carries out active aerodynamic resistance reduction control for a train by: analyzing turbulence field variation due to different travelling vehicle speed of the train and an aerodynamic resistance result of the train by building a train light section aerodynamic resistance numerical calculation model; establishing an exhaust / suction control range on a head vehicle and / or rearmost vehicle of the train by analyzing a relation between train surface pressure, periphery air flow speed, and periphery air pressure based on the train aerodynamic resistance numerical result; establishing a relation between an aerodynamic resistance reduction rate and an exhaust / suction angle by analyzing an aerodynamic resistance reduction rate at different exhaust / suction speed at different travelling vehicle speed by providing one or a plurality of exhaust / suction holes in the exhaust / suction control range; and building a database for active exhaust / suction adjustment control parameter variation.SELECTED DRAWING: Figure 1

1. The name of the design product: Oxygen cylinder clamping stabilizer (for high-speed rail). 2. The use of the design product: used for stabilizing oxygen cylinders in high-speed rail transportation to prevent tilting and collision. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention discloses a flow guide structure for pneumatic resistance reduction of a high-speed motor train unit. The flow guide structure is integrally formed on the side lower portion of a bogie apron board and / or an equipment compartment apron board and extends in the length direction of the corresponding apron board. The flow guide structure is used for actively inducing airflow to generate a guide effect at the position; the change of the flow direction of the airflow is used for inhibiting the downward rolling of the main airflow on the vehicle side to the bogie area below the vehicle, and / or reducing the generation and the scale of disordered vortexes in a bogie cabin; the flow guide structure comprises a flow guide main body extending outwards, the two ends of the flow guide main body are smoothly connected with the corresponding apron boards through wedge-shaped sections, the connection roots of the flow guide main body and the apron boards are in transition through arc surfaces, and the arc surfaces are bent towards the inner side of the bottom of the motor train unit. According to the flow guide structure, a guide airflow is induced to be generated when a train runs through a specific geometric shape, the two ends of the structure adopt wedge-shaped design, and the resistance introduced by the structure is reduced with a high slenderness ratio.

The application discloses a composite material pillow beam structure and a high-speed train. The pillow beam is composed of an upper wall plate, a lower wall plate, an air storage bottle, left and right crescent support tables, a support frame, a snake-resisting shock absorber, an I-shaped beam and an aluminum alloy inlay piece in a framework. The application is based on the original aluminum alloy pillow beam structure and is re-adjusted and designed based on the composite material under the condition that the original connection position is not changed. The application can ensure the volume, service life and strength of the train pillow beam, and significantly reduce the structure weight of the train pillow beam under the same condition by simplifying the structure and applying the new material, and solves the internal drainage problem of the train pillow beam.

1. The name of the design product: travel support (high speed rail). 2. The use of the design product: the design product is used as a support for supporting a mobile phone. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1. 5. The bottom view has been expressed in perspective view 3, and the bottom view is omitted.

The network may transmit beam deployment information or beam number information to a user equipment (UE) carried on a train and configured to operate in the millimeter wave frequency band. The deployment information may include a distance parameter or an azimuth spread parameter related to the deployment. The beam number information may indicate the number of network beams associated with the current cell. The UE may determine the number of UE receive beams based on the deployment information or the number of network beams indicated by the network. The UE may transmit feedback to the network, the feedback indicating the number of UE receive beams. Alternatively, the network may send a configuration message indicating a first number of UE receive beams to the UE, and the UE may regard the first number as an upper limit or a lower limit when it determines the expected number of UE receive beams. The UE may transmit the expected number to the network.