35results about How to "Increase the number of carriers" patented technology

The invention discloses a transmission method of orthogonal frequency division multiplexing of multiple cognitive users based on active interference elimination. In the transmission method, the critical fact is that a cognitive user inserts some subcarriers used for modulating special weights into a protective frequency section, i.e. two sides of the a main user, wherein the subcarriers are namedas interference cancellation subcarriers and the weights thereof are determined by data sent by the cognitive user; thus the sent data and sidelobes of the interference cancellation subcarriers are enabled to be mutually cancelled, and interferences generated in the protective sections are reduced. The more the inserted interference cancellation subcarriers are, the more obvious the interference inhibition is and the more the paid energy cost is. The cognitive user sequentially increases the quantity of the used interference cancellation subcarriers progressively according to the intensity ofdetected main user signals, so as to protect the main user with the minimum energy cost. The interference cancellation subcarriers are removed at a cognitive user receiving terminal, and different cognitive users insert respective interference cancellation subcarriers into two sides position closely next to the protective section in an overlapping mode, therefore, introduced mutual interferences have no effect on system performance, and the frequency spectrum efficiency of the system is improved.

A cellular communication system is provided. According to one embodiment, the communication system includes at least one cell. The at least one cell is defined by a coverage layer defining a coverage of the at least one cell and a capacity layer at least partly defining a capacity of the at least one cell.

The invention discloses a lithium-ion battery separator and a preparation method thereof and a lithium-ion battery. The preparation method comprises the steps as follows (a) polyimide and polyvinylidene fluoride are dissolved into a solvent at the mass ratio of 10:0 to 10:10, and the total solid content of the polymer in the solvent is 5-30wt.% to obtain a uniform casting solution; and (b) a substrate is coated with the casting solution prepared in the step (a), wherein the coating thickness is 20-450 microns, and phase transformation, washing and drying are sequentially carried out after standing to obtain the lithium-ion battery separator. The separator prepared by the method is uniform in pore size and distribution and the safety and the stability of the lithium-ion battery are improved. The lithium-ion battery separator is relatively high in mechanical strength; processing and transportation of the separator are facilitated; the processing yield of the lithium-ion battery is improved; and meanwhile, the lithium-ion battery separator is excellent in porosity, liquid absorption rate and liquid retention rate and is suitable for a quick charge and discharge high-capacity power lithium-ion battery.

The invention provides a detection device of a thin-film transistor array substrate and used for conducting the defect detecting on the thin-film transistor array substrate. The detection device comprises a carrying table base and a heating device arranged on the carrying table base, wherein the heating device is used for heating the thin-film transistor array substrate placed on the carrying table base before the defect detecting is conducted. The invention further provides a detection method for the thin-film transistor array substrate. By utilization of the thermo-sensitive properties, the thin-film transistor array substrate to be detected is heated and warmed through the arrangement of the heating device, the detection method can increase the number of the current carrier in the amorphous silicon residue of the thin-film transistor array substrate, increases the electrical activity of the amorphous silicon residue, enhances the influence of the amorphous silicon residue on the pixel voltage during detection, is beneficial for the pixel defect detection of the amorphous silicon residue, and avoids the leak detection of the defected products.

The invention discloses random copolymerization single-ion polymer electrolyte or block copolymerization single-ion polymer electrolyte which is obtained through copolymerization between a (p-vinyl phenylsulfonyl) (perfluoroalkyl sulfonyl) lithium imide monomer and a methoxyl polyethylene glycol acrylate monomer, and a preparation method of the electrolyte. The polymer single-ion electrolyte prepared by the method disclosed by the invention has the advantages of high room-temperature conductivity, high lithium ion transference number, low glass state temperature and degree of crystallinity, good mechanical strength and film-forming properties, wide electrochemical window, good thermal stability and the like, and has potential application values in the aspects of lithium (ion) batteries, carbon-based super-capacitors, solar batteries and the like.

A method and device for conducting data transmission, which belong to the technical field of optical interconnection of chips. The method comprises: acquiring elliptically polarized light; conducting polarization beam splitting on the elliptically polarized light, and obtaining first linearly polarized light and second linearly polarized light which form the elliptically polarized light and are perpendicular to each other in vibration directions; and respectively taking the first linearly polarized light and the second linearly polarized light as carriers to conduct data transmission. The number of carriers capable of being provided in an optical communication platform can be increased.

The invention provides a BCD device and a manufacturing method thereof. The cell structure includes a substrate, an epitaxial layer, a P isolation, a P well, a P-type heavily doped region, an N-type heavily doped region, a DMOS source electrode, a first P Well contact electrodes, DMOS gate electrodes, PMOS gate electrodes, NMOS gate electrodes, source electrodes, drain electrodes, BJT base electrodes, BJT emitter electrodes, BJT collector electrodes; the present invention can reduce the mask of the Nwell region in the BCD process version, which is conducive to reducing the cost of mass-produced products and improving the competitiveness of products; the concentration of the epitaxial layer used to act as the Nwell region is increased, so that the number of carriers when the DMOS device is on increases, and the specific on-resistance of the DMOS is further reduced. Reduce device loss and improve device performance.

The invention discloses a transmission method of orthogonal frequency division multiplexing of multiple cognitive users based on active interference elimination. In the transmission method, the critical fact is that a cognitive user inserts some subcarriers used for modulating special weights into a protective frequency section, i.e. two sides of the a main user, wherein the subcarriers are namedas interference cancellation subcarriers and the weights thereof are determined by data sent by the cognitive user; thus the sent data and sidelobes of the interference cancellation subcarriers are enabled to be mutually cancelled, and interferences generated in the protective sections are reduced. The more the inserted interference cancellation subcarriers are, the more obvious the interference inhibition is and the more the paid energy cost is. The cognitive user sequentially increases the quantity of the used interference cancellation subcarriers progressively according to the intensity ofdetected main user signals, so as to protect the main user with the minimum energy cost. The interference cancellation subcarriers are removed at a cognitive user receiving terminal, and different cognitive users insert respective interference cancellation subcarriers into two sides position closely next to the protective section in an overlapping mode, therefore, introduced mutual interferences have no effect on system performance, and the frequency spectrum efficiency of the system is improved.

The present invention provides a multi-epitaxial semiconductor device and its manufacturing method. Its cell structure includes substrate, epitaxial layer, STI isolation, P well, P-type heavily doped region, N-type heavily doped region, DMOS source electrode, the first A contact electrode of a P well, a DMOS gate electrode, a PMOS gate electrode, an NMOS gate electrode, a source electrode, a drain electrode, a BJT base electrode, a BJT emitter electrode, and a BJT collector electrode; the present invention firstly makes the BCD process reduce the Nwell area The mask plate is conducive to reducing the cost of mass-produced products and improving the competitiveness of products; secondly, the concentration of the epitaxial layer used to act as the Nwell region is increased, which increases the number of carriers when the DMOS device is on, and further reduces the ratio of DMOS. The on-resistance reduces device loss and improves device performance.

The present invention discloses a thin film transistor, a manufacturing method thereof, an array substrate and a display panel which are used for improve a conduction current when the thin film transistor is turned on. The thin film transistor comprises a substrate, a gate electrode located on the substrate and equipped with a plurality of hollow areas and an electrochromism layer located on the gate electrode, the hollow areas are at least covered by the electrochromism, and the electrochromism is used to increase the transmittance of the light rays when the signal received by the gate electrode is a turn-on signal.

A signal processing method, system and device for a DPD (Digital Pre-Distortion) MCPA (Multi-Carrier Power Amplifier) and an MCPA are disclosed. The signal processing method for the DPD MCPA comprises a step of receiving a digital baseband signal of the DPD MCPA, and obtaining frequency point information of each carrier wave in the digital baseband signal after a first control signal is received; a step of performing carrier wave separation of the digital baseband signal according to the frequency point information to obtain at least two ways of carrier wave signals; performing corresponding treatment of the at least two ways of carrier wave signals, and sending the treated at least two ways of carrier wave signals to corresponding DPD processors for DPD treatment; and receiving at least two ways of feedback digital signals sent by corresponding couplers according to control of received feedback switching instructions, and sending the at least two ways of feedback digital signals to the corresponding DPD processors for serving as reference data for DPD treatment of the carrier wave signals. According to the invention, the digital baseband signal is separated into the at least two ways of carrier wave signals according to the frequency point information of each carrier wave, the correspondingly-processed carrier wave signals are output to the corresponding DPD processors for DPD treatment, and the carrier wave number of radiofrequency signals is increased without exceeding the treatment frequency band width of the DPD processor, and the data transmission speed of the base station is improved.

A cellular communication system is disclosed comprising at least one cell defined by a coverage layer defining the coverage of the cell and a capacity layer defining at least in part the capacity of the cell.

The photocatalytic reactor comprises a shell, the shell is provided with a hollow cavity, one side of the upper end / lower end of the shell is provided with at least one medium inlet, and one side of the lower end / upper end of the shell is provided with at least one medium outlet; the upper end and / or the lower end of the shell are / is provided with at least one through hole for containing a lamp holder of the lamp tube, the lamp tube penetrates through the shell and is connected with the lamp tube fixing base, the lamp tube fixing base is fixedly connected with the shell, a sealing ring is arranged between the lamp holder of the lamp tube and the shell, and a light-emitting section of the lamp tube is arranged in the cavity. At least one separator is arranged in the cavity along the axial direction and / or the radial direction of the lamp tube, medium passing windows are arranged on the separators or medium passing windows are formed between the outer side walls of the separators and the inner side wall of the cavity, the adjacent medium passing windows are arranged in a staggered manner, and the medium inlet, the medium passing windows and the medium outlet which are communicated in sequence form a medium flowing channel. A catalyst-loaded carrier is arranged in at least part of the medium flow channel, and the catalyst-loaded carrier is arranged around the irradiation surface of the lamp tube.

The present invention discloses a method and base station for implementing a carrier aggregation. The method comprises: a base station determines predetermined information, wherein the predetermined information comprises reserved resources for the carrier aggregation and the capability of a user terminal; the base station selects a first carrier resource from the reserved resources according to the capability of the user terminal and selects, for the user terminal, a second carrier resource for bearing data from the resources except the reserved resources; and the base station aggregates the first and second carrier resources. On the premise of reducing the inter-cell interference, the present invention can increase the number of the carriers used by the user terminal to meet the various requirements of a new wireless communication network and guarantee the communication quality of the wireless communication network.

The invention discloses a solar cell structure, comprising an upper electrode layer, a lower electrode layer and a ferroelectric material layer between the upper electrode layer and the lower electrode layer, wherein the lower electrode layer is arranged on the periphery of the upper electrode layer, and the lower electrode layer can completely or partially surround the projection of the upper electrode layer on the lower electrode layer, so that the electric field in the ferroelectric material layer is scattered and is not perpendicular to the surfaces of the upper and lower electrode layers. The magnetic field in the ferroelectric material layer of a common solar cell structure is changed from a situation that the magnetic field is uniformly scattered and is perpendicular to the surfaces of the upper and lower electrode layers to a situation that the magnetic field is scattered and is not perpendicular to the surfaces of the upper and lower electrode layers, so that the quantity of current carriers separated by the electric field is increased and the photovoltaic effect is finally enhanced.

The invention discloses a method, a system and equipment for power line communication data processing. The system comprises a transmitter and a receiver. The transmitter comprises a first peak detection module, a channel coding module, a modulation module and a transmission front-end module, wherein the first peak detection module is used for peak point detection and voltage peak point forecast, the channel coding module is used for channel coding, the modulation module is used for modulation of bit stream data output by codes, and the transmission front-end module is used for beginning to transmit power line communication data from a peak time point acquired by detection and continuing for a period of time T. The receiver comprises a second peak detection module, a channel decoding module, a demodulation module and a receiving front-end module, wherein the second peak detection module is used for voltage peak point detection and peak point forecast, the channel decoding module is used for channel decoding, the demodulation module is used for demodulation of demodulation signals, and the receiving front-end module is used for beginning to receive the power line communication data from the peak time point acquired by the detection, continuing for the period of time T, and transmitting the power line communication data to the demodulation module for demodulation after synchronization. According to the method, the system and the equipment for the power line communication data processing, bandwidth of power-line communication is greatly improved, and the number of available carrier waves in the communication is increased.

The invention discloses a method for preparing spherical Ag@T‑ZnOw powder and a method and application for preparing a high dielectric polymer composite film, and relates to a method for preparing spherical composite powder and its application. The invention aims to solve the technical problem that it is difficult to meet the dielectric performance requirements of modern microcapacitors and sensors due to the inability to produce the quantum tunneling effect because the spherical nanometer silver is used as an enhanced phase. The present invention uses silver nitrate, polyvinylpyrrolidone and ethylene glycol as raw materials to prepare spherical Ag, then adds tetrapod-shaped zinc oxide, washes, centrifuges, and dries after reaction to obtain spherical Ag@T‑ZnOw powder. Dielectric polymer composite films were prepared by film laying and sheet pressing. The spherical Ag@T‑ZnOw powder of the present invention can produce quantum tunneling effect and has excellent electrical properties. After adding polymer matrix, devices such as sensors and microcapacitors can be prepared, and has broad application prospects.