34results about How to "Increase the number of bits" patented technology

The invention provides an uplink control information transmitting method, an uplink control information transmitting device and user equipment. The method comprises the steps of preprocessing the uplink control information; and transmitting the uplink control information on a physical uplink control channel carrying the uplink control information. According to the method, the problem that in related technologies, the uplink control information carried by a PUCCH format is small in bit number is solved, and thus the bit number of the uplink control information can be carried by the physical uplink control channel is improved.

The invention discloses an optimization method of ABR video coding code rate control. The method comprises quantification parameter optimization steps for a current coding frame as follows: obtaining coding information of a coded frame; obtaining an actual code rate of the current coding frame and a quantification parameter of the current coding frame according to the coded frame information; obtaining a code rate control error of the current coding frame; and adjusting the quantification parameter of the current coding frame that whether the code rate control error of the current coding frame is less than a set error is determined, if the code rate control error of the current coding frame is less than the set error, whether the current coding frame is a key frame is determined, if the current coding frame is the key frame, the quantification parameter is reduced in an error scope, and the bit number of the current coding frame is increased, if the current coding frame is not the key frame, the quantification parameter is increased in the error scope, and the bit number of the current coding frame is reduced, and, if the code rate control error of the current coding frame is greater than or equal to the set error, the optimization steps of the quantification parameter of the current coding frame are ended. The method can effectively reduce the code rate control error.

The invention discloses an OFDMA subcarrier distribution method based on energy efficiency. The method comprises steps that: network parameters are initialized, the subcarrier number distributed to each user is determined according to a ratio of a basic transmission rate of each user to a total transmission rate; equalization processing on a network channel gain noise ratio is carried out, subcarrier distribution is determined by employing an optimal channel quality distribution principle under the limit of the subcarrier number distributed to each user; and based on subcarrier distribution, subcarrier distribution between a highest energy efficiency user and a lowest energy efficiency user is adjusted according to adjusting rules to make integral network energy efficiency increase, and final subcarrier distribution is determined. Through the method, subcarrier distribution is determined through adjusting according to the optimal channel quality distribution principle, each user in the network is guaranteed to satisfy a basic transmission rate, a transmitted bit number per a network unit Joule is improved, calculation complexity is relatively low, and the realized energy efficiency approaches to the optimal energy efficiency.

In a counter circuit of a control signal generating circuit, a selector circuit selects under control which is in accordance with a selector circuit control signal (CTR) a predetermined one in a signal VSYNC and a signal HSYNC, which are pulse signals, so as to input a pulse signal thus selected to a counter. The counter outputs a counted result of pulses of the inputted pulse signal. By use of the counted result, a VSYNC synchronization signal generating circuit or an HSYNC synchronization signal generating circuit generates a control signal to control the driving of image display.

The invention provides a power optimization method for a full duplex bidirectional relay system under asymmetrical speeds. The method comprises the following steps: step 1, a full duplex bidirectional relay communication system is established, and power distribution factors are initialized; step 2, state information of each node is measured, and the state information includes power of reception and transmission of each node, self-interference information of each node and channel coefficients during data exchange between the nodes; step 3, whether the power distribution factors need to be adjusted is determined according to the state information of the nodes and values of the power distribution factors, and the values of the power distribution factors are adjusted according to the determination result until an overall speed sum of the full duplex bidirectional relay communication system is the maximum; and step 4, power resources are distributed according to a power distribution scheme when the overall speed sum is the maximum. According to the invention, a relay cooperation communication mechanism in a full duplex mode is established; time slot cost is reduced; and the system throughput and transmission efficiency are increased.

The invention discloses an implement method of a high-speed shared control channel under a multiple-input multiple output mode, comprising the steps: a high-speed shared control channel structure is expanded under a condition that the multiple-input multiple-output mode is a double-current multiple-input multiple-output mode, and a size index and a modulating mode of an auxiliary transmission block are indicated under the double-current multiple-input multiple-output mode by using an invalid state of a channelizing code set mark in a mark channel structure. By the technical scheme, the implement method can satisfy the requirement of double-current transmission under the multiple-input multiple-output mode, an HS-SCCH channel bit number has no need to be additionally increased; and the coding gain of the prior HS-SCCH can not be reduced.

The invention discloses a non-destructive hidden transmission method for on-board data. The method comprises the following steps of: embedding low-speed data in an original high-speed remote sensing carrier image by modifying the adjacent-pixel difference histogram of the on-board high-speed remote sensing carrier image, and performing downlink transmission by virtue of a satellite high-speed data transmission system. A ground receiving end can correctly extract the low-speed data from the carrier image, and recover the original high-speed remote sensing carrier image in a non-destructive manner. According to the method disclosed by the invention, the utilization rate of a satellite data transmission system is increased and the hidden performance of on-board data transmission is enhanced on the premise of no increase of the complexity and the information transmission speed of the satellite data transmission system. Experimental results indicate that a high pure load embedding capacity in case of ensuring a good hidden performance can be obtained according to the method disclosed by the invention.

The invention discloses a biometric key generating method adapting to dynamic quantization. The method comprises the following implementation steps: 1, acquiring a human electrocardiograph signal, and performing wavelet transform de-nosing and normalization processing on the human electrocardiograph signal; 2, performing R-wave detection on the normalized electrocardiograph signal, and extracting a pulse spacing feature; 3, performing statistics to obtain a mean value and a variance of the pulse spacing feature, and calculating information entropy of the pulse spacing feature according to the variance; 4, adaptively and dynamically determining a quantization bit of the pulse spacing feature according to the information entropy of the pulse spacing feature; 5, performing quantization coding on pulse spacing according to the determined quantization bit to generate a biometric feature sequence; and 6, performing key negotiation on the generated biometric feature sequence through a sensor node and a coordinator node to generate a biometric key shared by the two nodes. Through adoption of the method, key randomness is ensured; the biometric key generation efficiency is increased; and the fault probability of identity authentication is lowered. The method can be applied to authentication among wireless body area network nodes.

The invention provides a backlight module circuit and a liquid crystal display device. The backlight module circuit comprises a plurality of partition backlight units and a control unit. Any partitionbacklight unit comprises a light-emitting diode in the light-emitting diode main area and a light-emitting diode in the light-emitting diode auxiliary area; the light emitting diode in the light emitting diode main area and the light emitting diode in the light emitting diode auxiliary area are connected to the control unit in parallel. The partition backlight unit is divided into a light-emitting diode main area and a light-emitting diode auxiliary area; a control switch is additionally arranged in each second light emitting diode group in the light emitting diode auxiliary area to adjust the brightness of the light emitting diode auxiliary area, so the gray scale number of the light emitting diodes in the light emitting diode main area and the light emitting diodes in the light emittingdiode auxiliary area after parallel connection is increased, and the backlight unit reaches a higher bit number; and thus, finer picture display of the liquid crystal screen is realized.

The invention relates to a communication method of a spread spectrum modulation based OFDM system. The communication method of the spread spectrum modulation based OFDM system comprises the steps of firstly grouping sub-carriers at a transmitting terminal according to a certain rule; then modulating the serial number of each spreading code, that is, selecting spreading codes by utilizing differentsignal source bit combinations, so as to realize the purpose of improving the transmission rate; and regarding each grouping block as a minimum granularity when a receiving terminal carries out signal detection. In order to reduce the calculation complexity of a maximum likelihood detection algorithm, frequency domain balancing is firstly carried out for each grouping block, then the Euclidean distance in the presence of the current spreading code is calculated, and finally a combination with the minimum Euclidean distance is selected to serve as a final detection result, so that the purposeof reducing the complexity is realized. As the signal source bit is adopted for selection of the spreading codes used by different grouping blocks, the data rate is improved efficiently.

The invention discloses a controlled quantum secure direct communication method based on five particles. A method of sending a particle to a receiver is adopted, and the transmission efficiency of communication is improved by reducing the number of particles transmitted in a quantum channel; and a sender retains 3 particles in the communication process, adopts a quantum state to encode 3 bits of information, thereby improving the encoding capacity, increasing the number of information bits exchanged by both communication parties, and improving the transmission efficiency by 60%.

The invention provides a codebook generation method and device and belongs to the technical field of wireless communication. The codebook generation method is applied to a terminal, and comprises thefollowing steps of when a plurality of PDSCHs (Physical Downlink Shared Channel) received in a current time slot are overlapped in a time domain, generating a codebook, and determining the bit numberand / or the feedback position of the HARQACK needing to be fed back according to hybrid automatic repeat request (HARQ) time sequence information for scheduling the downlink control information of thePDSCH and / or the time when the time domain allocation item corresponding to the PDSCH belongs to in the generation of the semi-static HARQACK codebook. The method is advantaged in that a codebook generation scheme suitable for PDSCH scheduling with time domain overlapping can be provided.

The disclosure relates to a method and device for processing PBCH bandwidth, a base station, and a computer-readable storage medium. Wherein, the processing method of the PBCH bandwidth includes: judging whether the current frequency band is a preset type frequency band, wherein, the preset type frequency band can use two kinds of subcarrier spacing SCS; if the current frequency band is a preset type frequency band, then reducing The number of PBCH information bits contained in the load and the number of resource elements RE occupied by the demodulation reference signal DMRS in the synchronization signal block SSB corresponding to the current frequency band remain unchanged, or the number of PBCH information bits contained in the load in the PBCH corresponding to the current frequency band remains unchanged. Change and reduce the number of REs occupied by DMRS in the SSB corresponding to the current frequency band. The embodiments of the present disclosure can solve the problem that the UE takes too long to search for the synchronization signal.

The embodiment of the present application discloses an LED control method, a control device, and an LED display screen. The method includes: determining the time of applying voltage between the two stages of the LED before the rising edge of each PWM control cycle; judging whether it has reached If the pressurization time has been reached, the voltage will be gradually increased between the two stages of the LED according to the preset voltage increase rule so that the voltage applied between the two stages of the LED at the moment of the rising edge is greater than its conduction voltage; when the rising edge is captured edge, drive the LED to turn on; when the falling edge is captured, cut off the voltage applied between the two stages of the LED and connect the LED to a discharge circuit until the voltage between the two stages of the LED drops to the initial voltage; where the discharge time is longer than that of the unconnected The time required to reach the initial voltage after the LED is turned off when discharging the circuit. This application reduces the impact of AC crosstalk on other LED control circuits, greatly simplifies the difficulty of circuit design, improves the display effect of images, and lays the foundation for continuing to increase the number of image bits.

A multiplier of large number modulo multification is prepared as connecting REPC control unit to two write - read control ports of double port SRAM and able control port of REDC data channel separately for write - read control and calculation control; using double port synchronous random storage SRAM to store operation number of A, B, N and R in algorithm as well as intermediate result and final result of operation; using data channel to obtain data from two data write - read ports of double SRAM for finalizing operation of multification and addition of large number in algorithm.

The invention discloses an infrared remote control function signal generator which comprises a single chip, a keyboard, a reference voltage generating circuit and a waveform generator, wherein the infrared remote control function signal generator is characterized by also comprising a remote controller, an infrared receiver, a frequency band conversion controller, a summing circuit and a compression circuit; the remote controller transmits an infrared light signal to the infrared receiver after encoding and modulating the key information; the infrared receiver receives an infrared light signal emitted by the remote controller, converts the infrared light signal into an electric signal, demodulates, decodes, amplifies and outputs a control signal to the single chip; the keyboard outputs the control signal to the single chip; the single chip receives a control signal output by the infrared receiver and / or receives the control signal output by the keyboard, carries out processing conversion and outputs the signal to the frequency band conversion controller, the reference voltage generating circuit and the compression circuit, and the single chip also outputs a waveform selection control signal to the waveform generator.

The invention discloses an infrared remote control function signal generator which comprises a single chip, a keyboard, a reference voltage generating circuit and a waveform generator, wherein the infrared remote control function signal generator is characterized by also comprising a remote controller, an infrared receiver, a frequency band conversion controller, a summing circuit and a compression circuit; the remote controller transmits an infrared light signal to the infrared receiver after encoding and modulating the key information; the infrared receiver receives an infrared light signal emitted by the remote controller, converts the infrared light signal into an electric signal, demodulates, decodes, amplifies and outputs a control signal to the single chip; the keyboard outputs the control signal to the single chip; the single chip receives a control signal output by the infrared receiver and / or receives the control signal output by the keyboard, carries out processing conversion and outputs the signal to the frequency band conversion controller, the reference voltage generating circuit and the compression circuit, and the single chip also outputs a waveform selection control signal to the waveform generator.

The invention discloses an array substrate and a display panel. The array substrate comprises at least two pixel unit groups arranged along a first direction and a plurality of data signal lines, each pixel unit group at least comprises two pixel units arranged along a second direction, a preset included angle is formed between the second direction and the first direction, each data signal line is at least connected with one pixel unit, and each pixel unit group is at least correspondingly connected with two data signal lines. By increasing the number of the data signal lines correspondingly connected with the pixel unit groups, the transmission speed and transmission efficiency of data can be effectively improved, the effect of increasing the bit number is achieved, and then finer and smoother picture display is achieved.

The invention discloses an OFDMA subcarrier allocation method based on energy efficiency, comprising: initializing network parameters, determining the number of subcarriers that should be allocated to each user according to the ratio of the basic transmission rate of each user to the total transmission rate; The noise ratio is averaged. Under the limit of the number of subcarriers allocated to each user, the optimal channel quality allocation principle is used to determine the subcarrier allocation; The subcarrier allocation among energy efficiency users increases the overall energy efficiency of the network and determines the final subcarrier allocation. By adjusting the subcarrier allocation determined according to the optimal channel quality allocation principle, the method of the invention ensures that each user in the network satisfies the basic transmission rate, increases the number of bits transmitted by the network unit Joule, and has low computational complexity. And the achieved energy efficiency is close to the optimal energy efficiency.

The invention discloses a non-destructive hidden transmission method for on-board data. The method comprises the following steps of: embedding low-speed data in an original high-speed remote sensing carrier image by modifying the adjacent-pixel difference histogram of the on-board high-speed remote sensing carrier image, and performing downlink transmission by virtue of a satellite high-speed data transmission system. A ground receiving end can correctly extract the low-speed data from the carrier image, and recover the original high-speed remote sensing carrier image in a non-destructive manner. According to the method disclosed by the invention, the utilization rate of a satellite data transmission system is increased and the hidden performance of on-board data transmission is enhanced on the premise of no increase of the complexity and the information transmission speed of the satellite data transmission system. Experimental results indicate that a high pure load embedding capacity in case of ensuring a good hidden performance can be obtained according to the method disclosed by the invention.

The invention discloses an optimization method of ABR video coding code rate control. The method comprises quantification parameter optimization steps for a current coding frame as follows: obtaining coding information of a coded frame; obtaining an actual code rate of the current coding frame and a quantification parameter of the current coding frame according to the coded frame information; obtaining a code rate control error of the current coding frame; and adjusting the quantification parameter of the current coding frame that whether the code rate control error of the current coding frame is less than a set error is determined, if the code rate control error of the current coding frame is less than the set error, whether the current coding frame is a key frame is determined, if the current coding frame is the key frame, the quantification parameter is reduced in an error scope, and the bit number of the current coding frame is increased, if the current coding frame is not the key frame, the quantification parameter is increased in the error scope, and the bit number of the current coding frame is reduced, and, if the code rate control error of the current coding frame is greater than or equal to the set error, the optimization steps of the quantification parameter of the current coding frame are ended. The method can effectively reduce the code rate control error.

The invention discloses a controlled quantum secure direct communication method based on five particles, which adopts the method of sending one particle to the receiver, and improves the transmission efficiency of communication by reducing the number of particles transmitted in the quantum channel; 3 particles use a quantum state to encode 3 bits of information, thus increasing the encoding capacity, increasing the number of information bits exchanged by the communication parties, and increasing the transmission efficiency to 60%.

When processing a signal with a sequence of discrete values, whereby a first frequency range exists, in which the signal has a high energy, and whereby a second frequency range exists, in which the signal has a low energy, the sequence of discrete values is firstly manipulated (202) in order to obtain a sequence of manipulated values so that at least one of the manipulated values is not an integer. After this, the sequence of manipulated values is rounded (204) in order to obtain a sequence of manipulated values. The rounding is formed in order to effect a spectral formation of a generated rounding error in such a manner that a spectrally formed rounding error has a higher energy in the first frequency range than in the second frequency range. A particularly efficient coding, particularly in conjunction with a lossless coding context is obtained, by spectrally forming the rounding error so that the rounding error, in the spectral ranges in which there is no signal energy, also does not have any energy.

The invention discloses a 802.11 self-organizing network energy efficiency precedence method based on a cooperation MAC protocol. The method comprises steps that a source node i selects that energy efficiency reaching a target node j satisfiers Eikj>Eij according to link information of next-hop neighborhood topology, wherein Eij is the energy efficiency transported by the source node i to the target node j, Eikj is the energy efficiency transported by the source node i to the target node j via a relay node k, and the relay node k with the maximum Eikj value sends an RRTS frame as the relay node and is provided with an RCTS overtime receiving timer; the target node j receives RTS information, replies a CTS according to the standard 802.11 mode and then enters a data receiving state; once receiving the RRTS information from the source node i, the relay node k sends an RCTS to the source node i, informs the source node i to transform the data via a relay, and stores a target MAC address in the RRTS. According to the invention, wireless transmission rate and transmission energy consumption are optimized via the relay cooperation technology, and the bit number of unit energy transmission is increased.

The invention relates to a communication method of a spread spectrum modulation based OFDM system. The communication method of the spread spectrum modulation based OFDM system comprises the steps of firstly grouping sub-carriers at a transmitting terminal according to a certain rule; then modulating the serial number of each spreading code, that is, selecting spreading codes by utilizing differentsignal source bit combinations, so as to realize the purpose of improving the transmission rate; and regarding each grouping block as a minimum granularity when a receiving terminal carries out signal detection. In order to reduce the calculation complexity of a maximum likelihood detection algorithm, frequency domain balancing is firstly carried out for each grouping block, then the Euclidean distance in the presence of the current spreading code is calculated, and finally a combination with the minimum Euclidean distance is selected to serve as a final detection result, so that the purposeof reducing the complexity is realized. As the signal source bit is adopted for selection of the spreading codes used by different grouping blocks, the data rate is improved efficiently.

The invention discloses a time-frequency pulse-shaping based time-delay multi-carriers modulation and demodulation method. The method is characterized in that a plurality of periodic symbol waveformscapable of carrying information are formed at a sending end; the symbol waveform is formed by H wavelets, a starting point of each wavelet is required to be placed in the lifetime of a first wavelet,and the symbol waveform is obtained by linear superposition after the starting points of the wavelets sequentially move from the starting point of the symbol waveform for a certain time period calleda time delay, wherein the wavelets refer to fundamental waves carrying the information, the fundamental waves comprise waveforms of three intervals, namely a front pulse information wave at an interval Tthetai1, a main wave without the information in an interval tthetai2 and a back pulse information wave in an interval Tthetai3; and the received symbol waveform is balanced, amplitude information of the information carried by the balanced symbol waveform is solved in each front and back pulse information wave interfaces in sequence, and then the amplitude information is converted into a binarynumber to complete a signal demodulation process at the receiving end. The method has the characteristics of higher transmission efficiency, lower demodulation complexity and the like.

The invention discloses a time-frequency pulse-shaping based time-delay multi-carriers modulation and demodulation method. The method is characterized in that a plurality of periodic symbol waveformscapable of carrying information are formed at a sending end; the symbol waveform is formed by H wavelets, a starting point of each wavelet is required to be placed in the lifetime of a first wavelet,and the symbol waveform is obtained by linear superposition after the starting points of the wavelets sequentially move from the starting point of the symbol waveform for a certain time period calleda time delay, wherein the wavelets refer to fundamental waves carrying the information, the fundamental waves comprise waveforms of three intervals, namely a front pulse information wave at an interval Tthetai1, a main wave without the information in an interval tthetai2 and a back pulse information wave in an interval Tthetai3; and the received symbol waveform is balanced, amplitude information of the information carried by the balanced symbol waveform is solved in each front and back pulse information wave interfaces in sequence, and then the amplitude information is converted into a binarynumber to complete a signal demodulation process at the receiving end. The method has the characteristics of higher transmission efficiency, lower demodulation complexity and the like.

The invention relates to a time-to-digital converter for a time difference ranging of frequency-modulated continuous wave radar. The time-to-digital converter is applied to the time difference rangingin the frequency-modulated continuous wave radar and belongs to the technical field of radar ranging and laser ranging. The converter comprises a transmission delay matching module, a capacitor charging and discharging module, a digital logic control module, a fully differential analog-to-digital converter ADC and a counter. The transmission delay matching module is connected with the digital logic control module, the digital logic control module is connected with the capacitor charging and discharging module, the capacitor charging and discharging module is connected with the counter, and the capacitor charging and discharging module is connected with the fully differential analog-to-digital converter ADC. The time-to-digital converter is applied to the time difference ranging of the frequency-modulated continuous wave radar, the problem that the frequency difference ranging in a traditional frequency-modulated continuous wave radar is seriously limited by signal bandwidth can be effectively solved, meanwhile, the time-to-digital converter is applied to the frequency modulation continuous wave radar, and the centimeter-level ranging precision can be achieved.

The invention provides a power optimization method for a full duplex bidirectional relay system under asymmetrical speeds. The method comprises the following steps: step 1, a full duplex bidirectional relay communication system is established, and power distribution factors are initialized; step 2, state information of each node is measured, and the state information includes power of reception and transmission of each node, self-interference information of each node and channel coefficients during data exchange between the nodes; step 3, whether the power distribution factors need to be adjusted is determined according to the state information of the nodes and values of the power distribution factors, and the values of the power distribution factors are adjusted according to the determination result until an overall speed sum of the full duplex bidirectional relay communication system is the maximum; and step 4, power resources are distributed according to a power distribution scheme when the overall speed sum is the maximum. According to the invention, a relay cooperation communication mechanism in a full duplex mode is established; time slot cost is reduced; and the system throughput and transmission efficiency are increased.

The invention discloses a multi-sensor electronic scale landing detection system and method. The system comprises an electronic scale landing detection controller, a plurality of bidirectional multipath electronic switches and an upper computer, and a control switch or the upper computer triggers the electronic scale landing detection controller to control the bidirectional multipath electronic switches so as to realize switching between an electronic scale landing detection mode and a weighing mode. After a electronic scale landing detection mode is entered, a certain weight is loaded and unloaded at each sensor landing point of the electronic scale, whether each landing point falls to the ground and is true or not is judged according to the variation of two no-load signals before and after weight loading of the sensor, and after all the landing points are detected, a normal weighing mode of the electronic scale is entered.