84results about How to "Improve frequency utilization" patented technology

The invention relates to one digital integral communication method with control signal channel jump frequency function, which comprises integral group mode and direct mode, wherein, the former is to store information base devices divided into single base station module and multi-base module; the latter one is to store information basic device with mobile bench work mode; the jump frequency comprises control signal jump frequency and business signal jump frequency by use of TDMA system, wherein, the Nts hour gap to form one frame hollow one to form one frame.

This invention discloses a mobile communication base station and a beam switch method based on a beam switch intelligent antenna. In the up link time step, a base band control unit controls a send / receive switch at the receiving position, the received data on an antenna array enters into the receiving unit to be amplified and filtered via a digital phase shifter array and a power divider / synthesizer and demodulated and sent to the base band control unit. At the down link time step, the base band control unit controls the send / receive switch at the emit position, and sends the signal frame to be emitted to the modulation unit for modulation to be amplified by the emit unit then to be sent to the antenna array via the power divider / synthesizer, the digital phase shifter array, at the up and down link time step, the base band control unit should send the beam number to a conversion unit for timely decoding to generate a true control position then to be sent to the phase shift array to realize beam switch.

The invention discloses a communication method between a base station and a user terminal and corresponding devices. The communication method between the base station and the user terminal comprises the following step: user equipment (UE) adopts non-standard bandwidth to communicate with the base station; and before the UE adopts the non-standard bandwidth to communicate with the base station, the method also comprises the following steps: the UE sends an indication which supports the non-standard bandwidth to the base station, and receives the non-standard bandwidth information sent by the base station. By applying the embodiment of the invention, an evolved Node B (eNB) can adopt all or part of the non-standard bandwidth to communicate with the UE which supports the non-standard bandwidth, so as to reduce waste of the bandwidth, improve frequency use ratio and reduce operating cost of the operators.

The method includes steps: (1) After orthogonal and frequency-division multiplex process, data are sent from the sending end (SE) to the receiving end (RE); (2) RE receives data, estimates channels, de-modulates, decodes and sends ACK / NACK and the position info of the re-sending data block to SE; (3) SE continues to send the new data after receiving ACK; (4) After receiving NACK, SE ascertains the data block which needs to be re-sent, then accumulates the number of re-sent data blocks. If this number is not larger than the max re-sent number, SE re-sends this data block. Otherwise, SE waives this data block and starts to send the new data of the next frame; (5) after receiving the re-sent data block, RE combines these data with the data received before and decodes them, then feedbacks a info to SE, then repeats steps (3) and (4). The invention raises re-sent efficiency, frequency utility and the system throughput.

The invention relates to the technical field of radar systems, radio physics, and the like, and in particular relates to a distributed high frequency over-the-horizon radar system. The distributed high frequency over-the-horizon radar system comprises a shore-based high frequency ground wave radar netted subsystem, a fixed / mobile ground wave over-the-horizon radar subsystem in other forms (float type, vehicle-mounted and shipboard ground wave radar), a high frequency sky wave emission subsystem, an environment guarantee subsystem, a control subsystem and a data processing subsystem. The distributed high frequency over-the-horizon radar system can work in a ground wave netted and sky-ground wave hybrid netted mode, by virtue of distributed ground wave radar netted and sky-ground wave integrated netted detection, breaks through the limit that the conventional ground wave radar only can be distributed along coastlines, obtains more comprehensive physical quantity information at the original signal level by organic integration and mutual complementation multiple work modes, can improve accuracy of detection on wind, wave and current to a greater extent, greatly improves detection range of the high frequency radar system, and realizes far-shore ocean dynamics elements detection and near-shore fine detection.

The invention relates to a Bi-directional digital TV video on demand realizing device with a PON (Passive Optical Network) and IPQAM (Internet Protocol Quadrature Amplitude Modulator) structure, in particular to a device which realizes space division multiplexing by extending the PON and downwards moving the IPQAM. The traditional IPQAM product arranged in a centre machine room or front machine room occupies more frequency bandwidth resources of a coaxial cable to cause a great waste of analog bandwidth. The IPQAM is moved from the centre machine room or the front machine room to a cell or light station, thereby multiplexing the frequency bandwidth resources of the coaxial cable and completely solving the problem of insufficient frequency resources of a coaxial cable network. With the technical scheme, space division multiplexing can be realized by downwards moving IPQAM equipment, the frequency utilization ratio of an HFC (Hybrid Fiber and Coax) network is greatly increased, and an optimal video transmission scheme is provided for the integration of three networks. The Bi-directional digital TV video on demand realizing device can be widely applied to occasions such as video on-demand, bi-direction interactive TV and the like.

The invention discloses a resource allocation indication method, a base station and a terminal. The method comprises the following steps of allocating corresponding target transmission resources to the terminal when a target service occurs; and sending resource indication information to the terminal according to the target transmission resources, wherein the target transmission resources include uplink transmission resources or downlink transmission resources, the resource indication information includes first indication information and second indication information, the first indication information is used for indicating bandwidth parts of the target transmission resources, the bandwidth parts are part or all of the total bandwidth, and the second indication information is used for indicating position information of physical resource blocks (PRBs) allocated to the terminal in the PRBs corresponding to the bandwidth parts. In this way, the base station flexibly allocates the transmission resources for the target service based on the terminal capability, and sends the resource indication information to the terminal, so that the terminal can obtain frequency domain resources corresponding to the target transmission resources, and utilize the resources to transmit the target service, and thus the flexibility of frequency domain resource allocation and the system frequency utilization rate are improved.

The invention aims to protect a self-adaptive deterministic scheduling method for an industrial wireless sensor network applicable to WIA-PA (Wireless Networks for Industrial Automation-Process Automation) standard. According to the special environment of the industrial wireless network, together with the superframe structure, resource allocation and other parameters of the WIA-PA standard, the self-adaptive deterministic scheduling method calculates the real-time throughputs of both the transmission non-periodic data and the periodic data in the network respectively, and configures the lengths of the contention access stage, the special timeslot stage and the dormant stage in the superframe according to the present data throughput, so as to adjust the proportions of all the stages in the superframe structure in a self-adaptive manner. The method can effectively improve the bandwidth utilization ratio and lower the system power consumption.

The invention provides a 4G private network cell interference coordination method for an electric power transmission scene. The 4G private network cell interference coordination method comprises the steps that: (1) a base station in a 4G private network architecture performs diversity initialization on available frequency resources; (2) the base station obtains channel conditions of communication channels between the base station and a service terminal, and analyzes causes and types of interference; (3) and a corresponding coordination method is selected according to the interference type through combining the available resources and service requirements. A frequency subset in the interference coordination method provided by the invention is partitioned by adopting a dynamic partitioning method, the frequency utilization rate is improved, and the communication channel quality is ensured.

The invention discloses a method and equipment for processing a segment. The method comprises the following step of: determining the information of the segment according to the information of a carrier when the segment on the edge of the carrier is combined with the carrier. In the embodiment of the invention, a base station can perform segment processing on user equipment (UE) by a special signaling, and the UE can use the segment to work normally, so that the aim of improving frequency utilization rate is fulfilled.

The invention is applicable to the technical field of base station communication, and provides a power distribution method in DASs (Distributed Antenna Systems) containing D2D (Device to Device) communication in a multiplexing mode. The optimal power distribution method applicable to maximizing the SE (Spectral Efficiency) comprises the steps of firstly performing initialization, and then calculating P1(i) corresponding to the i-th iteration according to a formula of a CCCP algorithm; enabling i=i+1, calculating P1(i+1) corresponding to the (i+1)-th iteration; if a 2-norm of the difference between P1(i+1) and P1(i) is less than [xi], enabling P1(i+1) to be the optimal power, and terminating the iterative operation; and the method applicable to maximizing the EE (Energy Efficiency) comprises the steps of firstly performing initialization, and then calculating P2(t) corresponding to the t-th iteration according to the formula of the CCCP algorithm; enabling t=t+1, calculating P2(t+1) corresponding to the (t+1)-th iteration; substituting the calculated P2(t+1) into the energy efficiency EEd2d of the system after the D2D communication is added to calculate [omega]1(t+1); and if an absolute value of a transformed optimization function h1(P2(t+1), [omega]1(t+1)) when the EE is maximized is less than [xi], enabling P2(i+1) to be the optimal power, and terminating the iterative operation. The method provided by the invention improves the communication quality of a communication cell and reduces the energy consumption.

The embodiment of the invention discloses a user terminal frequency support information reporting method and system. The method comprises the steps that a user terminal sends the frequency support information of the user terminal to a network device, wherein band, sub band and channel number information of a frequency point supported by the user terminal is comprised; the fact that a communication service request launched by the user terminal is received is answered; and when the network device carries out service channel assignment, the frequency supported by the user terminal is distributed to the user terminal according to the band and channel number information. According to the embodiment of the invention, the frequency utilization ratio is improved.

The invention discloses a channel negotiation method, stations and a channel negotiation system. The channel negotiation method comprises the steps of transmitting channel reserving request information which comprises bandwidth expansion instructing information, wherein the bandwidth expansion indicating information is used for instructing a receiving station to perform bandwidth expansion feedback; and transmitting data to the receiving station according to the response bandwidth of the receiving station, wherein the response bandwidth of the receiving station is fed back by the receiving station in the channel reserving request information.

The invention relates to a resource allocation and energy management method of a collaborative cellular network. The resource allocation and energy management method ensures communication quality of each user through satisfying the minimum communication rate of each user, can maximize a sum of costs of two collaborative communication networks, and can guarantee the communication rate requirement of each user.

The method groups three mutual neighboring cells in a wireless cellular network as a cell-group. It designs a distribution scheme of any cell-group among them, then applies to other cell-group with same method. Another way, according to the state of the subscriber and services distribution and the state of system load of each cell-group, designs respectively frequency complexing scheme for that group. The dividing up available frequency in each group can be adjusted according to the state of the subscriber and services distribution and the state of system load of each group. This method splits the subscribers of each cell into the cell central subscribers and the cell margin subscribers, splits each cell-group into several areas and distributes them available frequency according to certain rule. This method raises effectively frequency utilizablity with the precondition of satisfying subscribers' certain comm. requirement.

The invention discloses a target type unmanned aerial vehicle time division multiple access one-machine multi-machine measurement and control communication method. The method comprises the following steps: (1) starting a ground control station and an unmanned aerial vehicle group; (2) sending out a clock synchronization command in a broadcasting mode while receiving a second pulse signal of a satellite navigation system through a data transfer radio by the ground control station, and starting a measurement and control timer inside the ground control station; (3) after receiving the second pulse signal of the satellite navigation system and the clock synchronization command through the data transfer radio by each unmanned aerial vehicle, and starting the measurement and control timer insideeach unmanned aerial vehicle to complete multi-machine clock synchronization; (4) communicating with each unmanned aerial vehicle by the ground control station in sequence to complete multiple roundsof communication periods; (5) after the multiple rounds of communication are ended, carrying out zero clearing on the ground control station and the measurement and control timer of each unmanned aerial vehicle and restarting; and (6) repeating the steps (2) to (5) until the communication is ended. According to the method, multi-machine clock synchronization is constructed by taking the second pulse signal of the satellite navigation system as reference, and the method is a one-station multi-machine measurement control communication method with low cost, generalization and operation stability.

The invention discloses a digital same-frequency transshipment method based on time division multiple access. The method comprises the following steps: the conversation time passing through a single frequency point is divided into at least one time slice T, and each time slice T is averagely divided into two time slots T1 and T2; a calling terminal compresses the speech data of the time slice T in the single frequency point into the speech compressed data to the time slot T1, and respectively sends the speech compressed data to transfer equipment and a called terminal through the time slot T2; the transfer equipment receives the speech compressed data of the calling terminal through the time slot T1 of the single frequency point, and transfers the speech compressed data to the called terminal with the time slot T2; the called terminal receives the speech compressed data sent by the called terminal through the time slot T1, receives the speech compressed data transferred by the transfer equipment with the time slot T2, and processes the data preferentially. The invention also provides a digital same-frequency transshipment system based on time division multiple access. The invention adopts digital time division technology to carry out digital same-frequency transshipment, thereby greatly improving the frequency utilization ratio.

The invention provides a frequency multiplexing networking method and system. The method comprises the following steps: occupying subbands allocated out from total available frequency bands of a communication system by all cells, wherein the subbands occupied by at least two cells are mutually and partially overlapped; allocating the total available frequency bands of the communication system into N subbands in advance, wherein N is an integer which is greater than 1, thereby, frequency use ratio and the same frequency interference among the cells are balanced, and the overall performance of the system is improved.

The invention discloses a wireless data transmission system of a load control terminal for a communication signal blind area. The wireless data transmission system comprises a data collection module, a GPRS (general packet radio service) / CDMA (code division multiple access) communication module and a wireless data transmission module, wherein the data collection module is used for collecting power data and carrying out power monitoring and is composed of a load control terminal device and one to more multifunctional ammeters; the GPRS / CDMA communication module is used for carrying out network communication; and the wireless data transmission module is used for carrying out wireless communication between the load control terminal device and the GPRS / CDMA communication module, and includes a TM module connected with the load control terminal device and a GM module connected with the GPRS / CDMA communication module. The wireless data transmission system disclosed by the invention adopts a mode of combining wireless data transmission with the GPRS / CDMA wireless communication network; and the problem that a signal blind point exists in the network communication is eliminated, and the requirement of data communication of the load control terminal device is met.

The invention provides a soft frequency reusing method and device based on a cognitive technology and a base station. The method comprises the following steps of: configuring frequency points to be distributed in a cell as a preferable frequency point set and configuring distributed frequency points of a neighboring cell of the cell as an optional frequency point set; judging whether resources which can be distributed exists in the preferable frequency point set or not; if so, distributing the frequency points in the preferable frequency point set to a mobile terminal; otherwise, distributing the frequency points in the optional frequency point set to the mobile terminal. through adoption of the soft frequency reusing method and device based on the cognitive technology and the base station, provided by the invention, a concept of a center and edges of the cell is broken through, the current frequency points of a user are sequenced through judging neighboring cell measurement information reported by the user and the frequency points with low same frequency interference are selected for access, therefore the same frequency interference is assured, and higher frequency utilization rate is realized.

The invention relates to a method for designing and rapid capturing of Chirp Noise Waveform (CNW) spread-spectrum signals, and belongs to the technical field of wireless communication. By utilizing a time-frequency coupling characteristic and a Doppler frequency offset resisting characteristic of the CNW signals, PN code acquisition and carrier wave Doppler frequency offset estimation can be accomplished at the same time just through one-dimensional search in a time domain. The method comprises the steps of: transmitting data symbols and CNW signals respectively in paths I and Q at the same time by a transmitting end by utilizing orthogonal modulation; matching the CNW signals at a receiving end by utilizing two groups of matching filters, and estimating time delay and Doppler frequency offset. Compared with the prior art, the method for designing and rapid capturing of the CNW spread-spectrum signals, disclosed by the invention, can enhance safety of communication transmission efficiently, increase frequency utilization rate, greatly reduce signal capturing time; requirements on communication real-time performance also can be met while the relatively high transmission efficiency is obtained.

The invention discloses a signal transmitting method and a signal receiving method based on TDCS (Transform Domain Communication System) differential transmission. The method comprises the following steps: acquiring a first frequency domain basic waveform vector by using a first frequency spectrum mask sequence and a first random phase complex sequence; performing inverse fast Fourier transform on the first frequency domain basic waveform vector to obtain a time domain basic modulation waveform; performing imaginary transformation on the time domain basic modulation waveform serving as a first path basic modulation waveform to obtain a second path basic modulation waveform; extracting k bits of bit data to be transmitted, and acquiring the decimal system mapping value of the k bits of bit data to be transmitted according to a rightmost bit as highest bit principle; randomly acquiring a first decimal numeral and a second decimal numeral; acquiring a first path modulation waveform and a second path modulation waveform through shift circulation modulation; synthesizing the first path modulation waveform and the second path modulation waveform to obtain a transmission signal, and transmitting the transmission signal by using an orthogonal frequency-division multiplexing transmission module.

The invention discloses a subway PIS service multicast method and device based on LTE broadband trunking communication. The method comprises the following steps: configuring a PIS trunking group by atrunking core network, and setting a multicast IP; initiating group calling by the trunking core network; sending a PIS service message provided with the multicast IP to the trunking core network by aPIS server; multicasting a GTP-U message comprising the PIS service message and the multicast IP to an eNB by the trunking core network; sending a PDCP message containing payload data to a terminal by the eNB; receiving the PDCP message by the terminal and analyzing, and if the multicast IP contains an address of the terminal, playing a PIS service. The invention also provides a device applicableto the method. Compared with the traditional subway PIS service multicast method and device, the method and device which are disclosed by the invention have the beneficial effects of high system capacity, high frequency utilization rate and low manufacturing cost.

The invention discloses a distribution transformer terminal wireless data transmission system for communication signal blind areas. The system includes a data acquisition module for electricity consumption monitoring and metering, with the module composed of distribution transformer terminal equipment; a GPRS / CDMA communication module for network communication; and a wireless data transmission module for wireless communication between the distribution transformer terminal equipment and the GPRS / CDMA communication module, with the wireless data transmission module composed of a TM module connected to the distribution transformer terminal equipment and a GM module connected to the GPRS / CDMA communication module. The wireless data transmission system provided in the invention combines wireless data transmission and a GPRS / CDMA wireless communication network, eliminates the signal blind spot problem in network communication, and meets the data communication requirements of the distribution transformer terminal equipment.

The present disclosure provides a method, an electronic device, and a storage medium for obtaining and providing configuration information. The method for obtaining configuration information includes:a user terminal sends energy information of the user terminal to a base station; and the user terminal receives configuration information sent by the base station

The invention provides a method and a system for transmitting electric network lightning positioning information, in particular a method and a system for transmitting the electric network lightning positioning information through a dual communication channel of an electric private network which adopts time-division multiplexing to transmit real-time data and an enterprise local area network which is based on IP interconnection protocol. The method and the system improve the reliability of transmitting lightning control points to a lightning positioning analysis center, so as to increase the operational stability of a lightning positioning monitoring system.

The embodiment of the invention relates to a method and equipment for resource allocation on an unlicensed spectrum and a computer readable storage medium. For example, a method includes determining afirst resource allocation for communicating between a network device and a terminal device over an unlicensed spectrum. The method also includes determining a resource usage on the unlicensed spectrum. The method also includes determining a second resource allocation for performing the communication over the unlicensed spectrum based on the first resource allocation and the resource usage condition. In addition, the method also includes performing the communication over the unlicensed spectrum based on the second resource allocation.

The invention provides a frequency hopping point generation method. When frequency point communication is generated through utilization of the method, the communication security and interference resistance can be effectively improved. The frequency hopping point generation method comprises the following steps of selecting a plurality of different frequency points and ordering the frequency pointsto obtain a frequency point list T, serially numbering the frequency points according to an ordering sequence, wherein the numbering is started from 0 and is carried out according to an ascending order; selecting a group of prime numbers; and multiplying a serial number i by a prime number p, dividing the frequency point total number by a product, acquiring a remainder, and taking the frequency point of which serial number is the remainder in the frequency point list T as the frequency point of which serial number is the i in a new frequency point list L.

The invention discloses an interference suppression method based on partial frequency reuse and base station collaboration in a heterogeneous cloud wireless access network. The method comprises the following steps: when frequency bands are distributed, considering a user number, user levels, geographical location and other information, wherein users of a macro base station center and a remote radio frequency unit center share the same frequency band, thereby improving the frequency utilization rate; when collaborative base stations are selected, adding remote radio frequency in the same sector in a collaborative base station candidate set, wherein the remote radio frequency unit can be selected to reduce the power consumption under the condition of the same interference strength; and setting the user levels, and adding the weights of senior users, so that the bandwidths available for the senior users are higher than those of ordinary users, and the flexibility of resource allocation is improved.