32results about How to "Expand effective coverage" patented technology

The invention discloses a downlink mode of transmission, network devices and a wireless device in the coordinated multiple-point transmission systems. The method includes the following steps: make clear the correspondent downlink physical resources and downlink mapping rules to the established sending physical downlink data channel and / or reference signal of the cooperation community. The downlink channel and / or reference signal are mapped to the downlink physical resources according to the downlink principles and then delivered to the terminals. The embodiment of the invention can expand the effective coverage, and to avoid interference between different communities.

The invention discloses a base station system which comprises a baseband unit and radio frequency remote units. The baseband unit is provided with an aggregating unit, a merging unit and a processing unit. The aggregating unit is used for acquiring baseband signals from multiple radio frequency remote units; the merging unit is used for merging the baseband signals of multiple predetermined radiofrequency remote units according to the identification information of the multiple predetermined radio frequency remote units; and the processing unit is used for processing the merged baseband signals. Furthermore, the invention also discloses a baseband unit, a processing method of the baseband signals and a device thereof. The baseband signals of the multiple predetermined radio frequency remote units are merged into a signal such that the multiple predetermined radio frequency remote units are logically regarded as a logic entity by a high layer, thus realizing the use of the multiple predetermined radio frequency remote units as a logic cell, expanding the effective coverage area of the logic cell, and further reducing the frequency of the cell reselection and the cell switching.

The invention discloses an omni-directional ceiling antenna. The omni-directional ceiling antenna comprises a cone column-shaped radiation oscillator, a cone column-shaped reflector, a plate column-shaped bottom plate and an insulating medium ring, wherein the reflector comprises a first hollow cone and a first cylindrical ring, the flared end of the first hollow cone is connected with the first cylindrical ring, and the outer diameter of the first cylindrical ring is less than that of the first hollow cone; the bottom plate is provided with a second cylindrical ring, and the second cylindrical ring and the first cylindrical ring are connected in a sleeve mode to form a space isolating coupling structure; an insulating medium ring is arranged between the second cylindrical ring and the first cylindrical ring to separate the reflector from the bottom plate and support and fix the reflector and the bottom plate. The omni-directional ceiling antenna solves the problem that high-frequency signals of an ultra-wide-band indoor omni-directional antenna are gathered downward, enables the effective cover range of high-frequency signals to be expanded, enables indoor signals to be distributed more uniformly, enables the electromagnetic radiation intensity under the antenna to be lowered effectively and enables the indoor electromagnetic environment safety to be guaranteed.

The invention discloses a public signal transmission method and device in hybrid beamforming technology, wherein the method comprises following steps of obtaining to-be-sent analog public signals; specific to different radio frequency chains, selecting different code words from an analog beamforming codebook as analog beamforming vectors; carrying out analog beamforming on the to-be-sent analog public signals on different radio frequency chains by utilizing the analog beamforming vectors; and sending out the public signal beams on the radio frequency chains after the analog beamforming. According to the technical scheme provided by the invention, the effective range coverage of the public signals in the hybrid beamforming technology can be realized.

The invention relates to a coal seam extraction drilling hot-cold impacting coal-breaking permeability-increasing device. The coal seam extraction drilling hot-cold impacting coal-breaking permeability-increasing device comprises a bearing base, a traveling mechanism, a liquid nitrogen storage steel bottle, a gaseous nitrogen storage steel bottle, a water storage tank, a hot-air blower, booster pump assemblies, nitrogen heating pipes, water cooling pipes and liquid nitrogen cooling pipes. The lower surface of the bearing base is connected with the traveling mechanism, and the liquid nitrogen storage steel bottle, the gaseous nitrogen storage steel bottle, the water storage tank, the hot-air blower and the booster pump assemblies are slidably connected with the upper surface of the bearing base through a slide rail. A fracture impacting assembly is formed by each nitrogen heating pipe, the corresponding water cooling pipe and the corresponding liquid nitrogen cooling pipe. The fracture impacting assemblies communicate with the two booster pump assemblies. A permeability-increasing method of the coal seam extraction drilling hot-cold impacting coal-breaking permeability-increasing device comprises the steps such as drill hole forming, fracture impacting assembly prefabricating, impacting fracture operation and extraction operation. According to the coal seam extraction drilling hot-cold impacting coal-breaking permeability-increasing device and the permeability-increasing method, on the one hand, drilling gas extraction efficiency is improved, gas extraction cost is reduced, and on the other hand, safety and reliability of gas extraction operation are improved.

The invention discloses a transmission signal preprocessing transmission method and device. The transmission signal preprocessing transmission method is applied to a wireless communication system comprising a first transmission terminal and a second transmission terminal both of which participate in cooperation, and comprises the following steps of: calculating each optimal pre-coding vectors W1, k and W2, k independent to the kth user respectively according to measured or fed back kth user downlink channel coefficient matrix H1, k and H2 through the first transmission terminal and the second transmission terminal; without carrying out phase rotation on a transmission signal of the first transmission terminal, i.e., a phase rotation matrix R1 is equal to 1, calculating a phase rotation matrix R2 of the second transmission terminal through the final precoding vector of the first transmission terminal, and calculating a final precoding vector ej theta of the second transmission terminal as a phase rotation factor according to the phase rotation matrix R2 of the second transmission terminal; and according to a final precoding vector and a transmission side processing weight as a processing transmission signal, multiplying by each original transmission signal as a final transmission signal to be transmitted out through an antenna. According to the invention, a multipoint transmission technology is effectively utilized, the interference of a cell edge is reduced, and the frequency spectrum efficiency of the cell edge is improved.

The invention discloses a downlink signal preprocessing transmission method and device. The downlink signal preprocessing transmission method comprises the following steps that: a transmission end i acquires a channel coefficient matrix Hi between the transmission end i and a user, wherein Hi belongs to C<NR*NTi>, and represents a complex coefficient matrix, NR represents a receiving antenna number of the user, and NTi represents a transmission antenna number of the transmission end i; the transmission end i acquires an optimal precoding matrix Wi by utilizing the channel coefficient matrix Hi, wherein Wi belongs to C<NR*di> and represents the complex coefficient matrix, and di represents a transmission data stream number of the transmission end I; and the transmission end i calculates a rotation matrix Ui of the transmission end by utilizing all acquired channel coefficient matrixes H1,..., the precoding matrixes W1,..., Wi, and the rotation matrixes U1,..., Ui-1 in mutually cooperative transmission ends, wherein the rotation matrix is U1 and is a unit matrix when i is equal to 1; the transmission end calculates a final precoding matrix W<new>i=WiUi according to the precoding matrix Wi and the rotation matrix Ui; and preprocessing the transmitted data, and transmitting the data through an antenna interface. The method and device disclosed by the invention have the advantages of reducing the interference of a cell edge, improving the frequency spectrum efficiency of the cell edge and increasing the effectively coverage range of a cell.

The present invention provides an omnidirectional ceiling antenna, which includes a cone-shaped radiating oscillator, a cone-shaped reflector, a disc-shaped bottom plate, and an insulating dielectric ring; wherein the reflector includes a first hollow cone and a first cylindrical ring , the flared end of the first hollow cone is connected to the first cylindrical ring, and the outer diameter of the first cylindrical ring is smaller than the outer diameter of the flared end of the first hollow cone; a second cylindrical ring is arranged on the bottom plate, and the second cylindrical ring is connected to the first cylindrical ring. The cylindrical rings are socketed to form a space-isolated coupling structure; the insulating dielectric ring is arranged between the second cylindrical ring and the first cylindrical ring to realize isolation and support and fixation between the reflector and the bottom plate. The invention solves the problem that the high-frequency signal of the ultra-broadband indoor omnidirectional antenna gathers downward, not only expands the effective coverage of the high-frequency signal, makes the indoor signal distribution more uniform, but also effectively reduces the electromagnetic radiation intensity under the antenna, ensuring indoor Safety in the electromagnetic environment.

The present application discloses a public signal transmission method and device in the hybrid beamforming technology, wherein the method includes: acquiring an analog public signal to be sent; selecting different codewords from the analog beamforming codebook for different radio frequency chains as an analog beamforming vector; using the analog beamforming vector to perform analog beamforming on the analog common signals to be sent on the different radio frequency chains; The signal beam is sent out. The technical solution in the present application can realize the effective range coverage of the public signal in the hybrid beamforming technology.

The invention relates to a multiplex device and a multiplex method that support energy diffusion; the multiplex device comprises a multiplexer and an energy diffuser. The multiplexer multiplexes various data information into different logic channels to form a multiplex frame which comprises a multiplex frame header, a multiplex frame payload and a filling part. The energy diffuser conducts energydiffusion treatment to the filling part to randomize the data in the filling part. The multiplex device and the multiplex method that support energy diffusion of the invention can enhance the transmitting power of a CMMB transmitting system under the modulation of 16QAM, thus increasing the effective covering scope of a transmitting tower.

The present application relates to an information classification method, device, computer equipment and storage medium. The method includes: obtaining information to be classified, performing word segmentation on the information to be classified to obtain a corresponding set of original words; respectively obtaining synonyms corresponding to each original word in the set of original words, and forming extended words from the original words and corresponding synonyms Each original word has a corresponding set of extended words; according to the set of extended words corresponding to each original word, the set of extended classification information corresponding to the information to be classified is formed; the set of extended classification information is input into the trained multi-classification model The target category corresponding to the information to be classified is obtained, and the method can improve the classification accuracy of the information.

The present invention provides a method for dynamically delivering rules in a software-defined network, including S1. constructing a set of rule sets R into several rule subsets RS, so that the rules in each rule subset RS satisfy a complete hierarchical nesting relationship, and Each rule subset RS is generated as a complete hierarchical nesting tree; S2. According to the complete hierarchical nesting tree generated by each rule subset and the uploaded network package, construct the corresponding delivery rules; S3. Issue the above-mentioned construction The rules perform the geometric space "intersect" operation to obtain the final single delivery rule, and then perform the rule delivery operation. The method for dynamically issuing rules in software-defined networks according to the present invention can greatly improve the effective coverage of the flow of issued rules on the premise of ensuring the consistency of decision-making between the control plane and the data plane, significantly save device memory usage, and reduce the number of rules. The incidence of deletions.

The application relates to a system information processing method, device, computer equipment and storage medium. The method includes: monitoring the system information released by the terminal, and segmenting the system information to obtain a corresponding original word set; the original word set includes a plurality of original words; performing synonymous expansion on each original word, and generating an extended word corresponding to each original word Word set; form the extended system information set corresponding to the system information according to each extended word set; input the extended system information set into the preset system management model to obtain the target category corresponding to the system information; obtain the category labels corresponding to multiple target information trees , to filter the target information tree containing the label corresponding to the target category, and add the system information to the filtered target information tree. This method can regulate the efficiency and accuracy of information classification.

The invention discloses a base station system which comprises a baseband unit and radio frequency remote units. The baseband unit is provided with an aggregating unit, a merging unit and a processing unit. The aggregating unit is used for acquiring baseband signals from multiple radio frequency remote units; the merging unit is used for merging the baseband signals of multiple predetermined radiofrequency remote units according to the identification information of the multiple predetermined radio frequency remote units; and the processing unit is used for processing the merged baseband signals. Furthermore, the invention also discloses a baseband unit, a processing method of the baseband signals and a device thereof. The baseband signals of the multiple predetermined radio frequency remote units are merged into a signal such that the multiple predetermined radio frequency remote units are logically regarded as a logic entity by a high layer, thus realizing the use of the multiple predetermined radio frequency remote units as a logic cell, expanding the effective coverage area of the logic cell, and further reducing the frequency of the cell reselection and the cell switching.

Disclosed is a method for pre-processing and transmitting a downlink signal. The method comprises: a transmitting end i acquiring a channel coefficient matrix H i between the transmitting end i and a user equipment, being a complex coefficient matrix, N R representing the number of receiving antennas of the user equipment, and representing the number of transmitting antennas of the transmitting end i; the transmitting end i acquiring an optimal pre-coding matrix W i through the channel coefficient matrix H i , being a complex coefficient matrix, and d i representing the number of data streams transmitted by the transmitting end i; the transmitting end i calculating a rotation matrix U i of the transmitting end i by using all acquired channel coefficient matrices H 1 , ..., H i , pre-coding matrices W 1 , ..., W i , and rotation matrices U 1 , ..., U i -1 of transmitting ends cooperating with one another, when i = 1, the rotation matrix being U 1 which is a unit matrix; the transmitting end calculating a final pre-coding matrix according to the pre-coding matrix W i and the rotation matrix U i ; and pre-processing, through, data to be transmitted, and transmitting the data through an antenna port. Through the present invention, interference of a cell edge is reduced, spectral efficiency of the cell edge is improved, and effective coverage of a cell is increased.

A method and an apparatus for preprocessing and transmitting transmission signal are disclosed in the invention. The method includes that: W 1,k and W 2,k , which are the independent and optimal pre-coding vectors of a first transmission terminal and a second transmission terminal to the kth user, are calculated by the first transmission terminal and the second transmission terminal respectively according to downlink channel coefficient matrixes H 1,kand H 2,k of the kth user acquired through measurement or feedback; phase circumrotation is not performed for the transmission signal of the first transmission terminal, that is, the phase circumrotation matrix is R1=1, and a final pre-coding vector of the first transmission terminal is W ~ 1,k=W 1,k; a phase circumrotation matrix R2 of the second transmission terminal is calculated, and a final pre-coding vector of the second transmission terminal is calculated by W ~ 2,k= W 2,k°e j? according to the phase circumrotation matrix R2 of the second transmission terminal, wherein e j? is a phase circumrotation factor; the final pre-coding vectors W ~ 1,k and W ~ 2,k are made as processing weight values of the transmission sides which are used to multiply the respective original transmission signals, and the obtained results by multiplying are transmitted through antennas as final transmission signals. The invention reduces interference at the edge of cells and improves the frequency spectrum efficiency at the edge of cells.

A method, an apparatus and a system for transmitting uplink information are provided. The method includes: obtaining an uplink physical resource and an uplink mapping rule corresponding to a Physical Uplink Control Channel, PUCCH, and / or a Physical Random Access Channel, PRACH, and / or a Reference Symbol, RS, which are negotiated by coordinated cells; and using the uplink physical resource to transmit uplink control information and / or random access information and / or the RS according to the uplink mapping rule. Multiple coordinated cells collaborate to allocate the uplink physical resource corresponding to the PUCCH and / or the PRACH and / or the RS, and use the uplink physical resource to transmit the uplink control information and / or the random access information and / or the RS according to the uplink mapping rule. In this way, the uplink control information, the random access information, and the RS are transmitted by the coordinated cells collaboratively; the effective coverage of the coordinated cells is improved; and the interference between the coordinated cells is reduced effectively.

The invention provides a method and system for measuring the three-dimensional distribution of high-voltage electric field. In the system, the attitude sensor detects in real time the angle vector offset value of the current position of the installation body relative to the original calibration position, and the electric field sensor measures the current position and the current angle vector offset. The value of the electric field intensity under the value can realize the matching and calculation of the electric field intensity distribution information relative to the original calibration position of the detection system, and finally complete the measurement of the three-dimensional distribution information of the high voltage electric field. The detection system and method improve the effective coverage of the electric field detection without increasing the number of electric field sensors, guarantee its portability and ease of use, and provide more comprehensive protection for detection personnel. In the detection system provided by the present application, the setting of the freely rotatable pan-tilt makes the electric field measurement device have no detection blind area, and furthermore, there is no problem of false alarm or missed alarm caused by the detection blind area.