242results about How to "Improve feedback efficiency" patented technology

The invention provides an HARQ-ACK information feedback method. According to the method, DL Assignment is transmitted in a time-frequency binding window corresponding to uplink subframes of corresponding HARQ-ACK feedback by a base station. The DL Assignment includes DL DAI. A UE receives DL-Assignment transmitted by scheduling downlink HARQ in the time-frequency binding window so that the DL DAI in the DL-Assignment is acquired and the mapping value of each DL DAI is determined; and then the HARQ-ACK bit of each HARQ feedback unit is mapped to the corresponding bit of a feedback bit sequence according to the mapping value of the corresponding DL DAI. The invention also discloses DL-Assignment generation equipment and HARQ-ACK information feedback equipment. With application of the method and the equipment, multiple HARQ-ACK feedback transmitting the carriers of the downlink data from different time points in the same downlink subframe can be supported so that the ineffective HARQ-ACK bit can be effectively eliminated, the HARQ-ACK feedback efficiency can be enhanced and the downlink peak rate of the UE can be ensured.

The invention relates to a limit bit feedback and multiuser dispatching algorithm which comprises the following steps of: at the base station side, determining a loaded wave beam set for each subcarrier; at the user equipment side, obtaining the wave beam set information, forming an associated subcarrier on the basis of each subcarrier, calculating a channel quality estimation parameter of each wave beam, and determining the optimal wave beam and a key subcarrier; and if the channel quality corresponding to the optimal wave beam on the key subcarrier exceeds a scheduled threshold value, feeding a sequence number of the key subcarrier and the best wave beam number back to the base station side; and at the base station side, receiving the feedback information of the user equipment, expanding the feedback information of the key subcarrier to the associated subcarrier, determining a reference wave beam set adopted by the associated subcarrier on the basis of each subcarrier, and than carrying out the user dispatching on each wave beam, and finally carrying out the data transmission according to the selecting condition of the reference wave beam set and a user dispatching result. The invention has the advantages of less user feedback information amount, high feedback efficiency, large frequency spectrum multiplexing coefficient and high flexibility, simple realization, less signaling interaction between a user and a base station, and the like.

The invention provides an energy feedback method for a hybrid electric vehicle. The method includes the steps that firstly, a braking energy feedback torque value is confirmed according to the current opening degree of a brake pedal and the current vehicle speed, the small value is selected from the braking energy feedback torque value and a torque value corresponding to the maximum charging power of a battery, a braking energy feedback torque required value is obtained, a current work mode of the vehicle is stopped according to the braking energy feedback torque required value, and braking energy feedback is conducted. By the adoption of the scheme, a brake pedal opening degree signal is used, the opening degree of the brake pedal ranges from 0% to 100%, the braking energy feedback torque value is confirmed according to the current braking degree, and compared with the prior art in which only a sliding state and a braking state are available, the method is more accurate. An analog quantity brake pedal signal is adopted in braking energy feedback provided by the scheme, the braking energy feedback torque of an electric generator and the braking energy feedback torque of a drive motor are reasonably distributed according to the current working state of a clutch and the work mode of the whole vehicle, the braking energy feedback efficiency can be improved, the running mileage of the battery is increased, and the purpose of improving fuel economical efficiency is achieved.

The invention provides an information real-time push method comprises the steps that a server selects target push information from to-be-pushed information, sets a real-time reporting identifier for the selected target push information, pushes the to-be-pushed information, receives and statistically analyzes the click data of the target push information reported by mobile terminals, judges whether the click rate of the target push information reaches a preset value when the statistical click data reach a set number, and if no, performs reduced-amount push. The embodiments of the invention also provide an information real-time push device and system. By acquiring the click rate of push information of users fed back in real time, the feedback efficiency is increased, push strategies can be adjusted timely and the information push efficiency is increased.

The present application relates to a medical information pushing method and device, a computer device and a storage medium. The method includes: receiving a service request message; querying a diagnostic dialog template corresponding to the service request message when the service request type of the service request message is a registered diagnosis; in response to the service request message through the diagnostic dialog template, performing a dialog diagnosis; according to the question and answer data in the dialog diagnostic process, obtaining disease information; inputting the disease information into a corresponding disease matching model, and matching the disease information by the disease matching model to obtain a disease information processing result; and pushing the obtained disease information processing result. The method can prevent doctors from directly participating in the acquisition of the disease information and the processing of the disease information, avoids repeated communication between the doctor and the patient, simplifies the processing process of the medical service request, and improves the feedback efficiency of the medical information in the medical service.

A braking torque closed-loop control system and method for a switch reluctance motor. The closed-loop control system comprises a torque regulator, a mode selector, a current regulator, an angle optimization controller and a torque estimator. On the basis of the rotating speed of the motor, the mode selector implements a phase current soft chopper control in a low rotating speed region and an angle position control in a high rotating speed region. The current regulator performs soft chopper hysteretic current regulation. The angle optimization controller optimizes a turn-on angle and a turn-off angle of a power converter master switch to reduce torque pulsation and improve braking energy feedback efficiency. The torque estimator conducts an on-line estimation of an actual braking torque estimated value of the motor based on an actual phase voltage and current of the motor to achieve braking torque signal feedback.

The invention discloses a wide-range energy feedback method of a multiplexed output switching power source and a realizing circuit. The realizing circuit comprises multiplexed power output ends, a current equalizing transformer circuit and feedback electronic loads, wherein, the multiplexed power output ends are respectively connected in parallel to corresponding direct-current busbars through the current equalizing transformer circuit, and fed back to an electric network through a corresponding feedback electronic load. The method adopts boost pressure current equalizing transformer circuit; independent current equalizing control is performed through digital control technologies; multiplexed different output voltages of the switching power source are transformed into one path voltage or a small number of paths of voltages; the voltages are connected in parallel to corresponding direct-current busbars and fed back to the electric network through a general DC / AC feedback type electronic load. The invention has the advantages of simple realizing method, low cost and high feedback efficiency, and the realizing circuit is accurately set with simple structure at the same time.

The invention discloses an energy feedback method and system of a vehicle and the vehicle. The method comprises the following steps of judging whether a vehicle meets an energy feedback condition or not; if yes, obtaining a constant feedback force moment according to a rotating speed of a motor, wherein the constant feedback force moment is a constant power feedback force moment or a constant torque feedback force moment; obtaining a maximum electrical braking force moment corresponding to a maximum braking acceleration limiting value, and a maximum charging force moment corresponding to a maximum charging power of a power battery; determining a maximum energy feedback force moment according to the constant feedback force moment, the maximum electrical braking force moment and the maximum charging force moment; and obtaining the final energy feedback force moment according to an energy feedback coefficient and the maximum energy feedback force moment, and controlling the motor to perform feedback braking according to the final energy feedback force moment. Through the energy feedback method of the vehicle disclosed by the embodiment of the invention, energy feedback efficiency can be improved, further energy consumption is reduced, and pollutant discharge is reduced.

The invention discloses a network coding-based wireless cooperative broadcasting / multicasting method. In the method, a network coding data packet for retransmission is formed by combining and constructing data packets lost by a user in a network coding mode, and a cooperative user assists a user who fails to correctly receive all data packets at a first phase in receiving all data packets. The method is implemented by the following steps of: transmitting data packets by using a data source; selecting the cooperative user and specifying a request and performing network coding configuration; and transmitting network coding data packets in a cooperative way. A retransmission network coding data packet is constructed through network coding and user cooperation, so that retransmission times can be greatly reduced and system efficiency is improved.

The invention provides a 3D MIMO (Multiple Input Multiple Output) communication method and apparatus. In one embodiment of the 3D MIMO communication method and apparatus, UE (User Equipment) receives a downlink reference signal in a first RS (reference signal) resource and a second RS resource in the step 1; in the step 2, the UE determines a target RS resource which is the first RS resource or the second RS resource; and in the step 3, the UE feeds back a first CI (Codebook Index) and a first index, wherein the first RS resource includes N1 RS ports; the second RS resource includes N2 RS ports; the reference RS of the first CI is the target RS resource; the first index indicates the target RS resource; N1 is a positive integer which is greater than 1; and N2 is a positive integer which is greater than 1. By means of the technical scheme of the 3D MIMO communication method and apparatus, the UE can utilize the limited air interface resource to feed back the most effective CI information so that the cost for the air interface resource is saved or the feedback efficiency of the CI is improved.

The invention provides a power battery pack testing energy feedback device, structurally comprising a plurality of power battery packs, a plurality of bidirectional DC / DC converter, a DC / AC inverter, a filter circuit, a signal sampling circuit, a control circuit, a drive circuit, a human-machine interface and corresponding auxiliary circuits; based on the electrical conversion principle, electricity of a power battery after charging testing is fed back to a power grid sequentially through the bidirectional DC / DC circuit and the DC / AC circuit, the power battery refers to chemical principle-based energy storage devices including various rechargeable batteries and supercapacitors; the device employs the multi-stage bidirectional DC / DC converter and can provide capacity feedback for different voltage levels of power battery units and packs; by using voltage and current double-closed-ring control, the voltage and power grid voltage are precisely controlled under same frequency, same phase and sample amplitude, grid-connected current is controlled to be reverse to the power grid voltage but under the same frequency, magnitude of feedback current is precisely controlled, discharge testing function for power battery testing is achieved for a power battery, and energy is saved.