229results about How to "Guaranteed rate" patented technology

In a packet communication network in which the minimum guaranteed rate and maximum limiting rate of packet transfer are contracted for each service, this invention classifies flows corresponding to received packets into group 1 to which a flow whose packet transfer rate is less than the minimum guaranteed rate belongs, group 2 to which a flow whose packet transfer rate is equal to or higher than the minimum guaranteed rate and less than the maximum limiting rate belongs, and group 3 to which a flow whose packet transfer rate exceeds the maximum limiting rate belongs. A packet received in relation to a flow which belongs to group 1 is preferentially transferred before a packet received in relation to a flow which belongs to group 2, and a packet received in relation to a flow which belongs to group 2 is preferentially transferred before a packet received in relation to a flow which belongs to group 3. This allows easy and fair redistribution of an extra band, while a packet transfer rate equal to or higher than the minimum guaranteed rate is ensured, even when traffic has increased.

The present invention relates to an intelligent test device for a substrate, comprising a main case, a detection turntable, a feeding mechanism, a contact detection mechanism for testing the OFF-pressure of contacts from spring pieces, a discharging mechanism and an electric control box, the detection turntable, the feeding mechanism, the contact detection mechanism and the discharging mechanism being all ON-connected to the electric control box. The test device of the present invention can complete the OFF-pressure detection of the longitudinal and transverse contacts of the substrate automatically without requiring any manual operation, thus the test device of the present invention is easy to use, and the detection accuracy and the detection efficiency are high. Furthermore, the ex-factory pass rate of products is guaranteed, the cost is reduced and defective substrates can be classified and sorted automatically.

The invention relates to the technical field of lithium ion battery, in particular relates to a water-based ceramic coating for the lithium ion battery and an application thereof in positive and negative electrodes and separators. The water-based ceramic coating disclosed by the invention comprises the following components in percentage by weight: 0.1-5% of water-soluble polymeric thickener, 0.1-5% of aqueous dispersant, 80-99.7% of ceramic particles, and 0.1-10% of aqueous latex. The water-based ceramic coating disclosed by the invention is stable in system, viscosity and granularity, and is difficult to precipitate; in addition, the polypropylene substrate, polyethylene substrate and the positive and negative electrodes can be soaked, surface treatment such as corona disposal and the like is not necessary, and the adhesion of the coating onto the polypropylene substrate, polyethylene substrate and the interface of the positive and negative electrodes are strong.

The embodiment of the invention discloses a method for compressing film thumbnails, comprising the following steps: carrying out loss compression on the film thumbnails to acquire film thumbnails with specific digits; carrying out run coding on the film thumbnails with the specific digits; and carrying out lossless compression on the film thumbnails which are subjected to the run coding to acquire compressed pictures. The embodiment of the invention also provides a device for compressing film thumbnails. In the invention, the loss compression, the run coding and the lossless compression are combined effectively to compress the film thumbnails, thus having the advantages of higher compression ratio, high compression efficiency, low degree of distortion and fast decoding speed.

The invention discloses an intelligent home system based on cloud service and ZigBee technology and a design method thereof. The system adopts a browser / server (B / S) architecture, uses Apache as a Web server, uses Mysql as a database, stores a corresponding data record, converts the data into a Json format, then communicates with an Android mobile phone through HTTP and achieves related data transmission through a ZigBee protocol stack of the TI company, the ZigBee protocol stack transmits the received data to an Android home gateway through a serial port and transmits the data to the server through the HTTP, and a mobile phone client is connected with the server to synchronize all data and display home building conditions in real time. The intelligent home system disclosed by the invention mainly solves a ZigBee set-point control problem, a communication problem of a ZigBee coordinator and the home gateway and a remote control problem.

The invention concerns a method comprising a step which consists in comparing a label to a value counted from a transfer clock to define the transfer time on the bus of a packet read on a recording medium. The invention is characterized in that for implementing a special mode or trick mode, it further comprises the following steps: calculating a difference between two consecutive packets based on the values of recorded labels; calculating an offset value based on said difference and parameters received on the bus defining the special mode; adding said offset value to the label value of the transmitted packet to obtain a new label value defining the transfer time on the bus of the following packet to be transmitted. The invention is applicable to the storage of MPEG data.

The invention discloses a mobile terminal network switching apparatus and network switching method. The network switching method comprises: confirming a first connection mode preferentially connected by a current network, and obtaining transmission real parameters of the current network; reading transmission lower limit parameters of a preset first connection mode, and comparing the transmission real parameters with the transmission lower limit parameters; and switching the current network to a standby second connection mode when the transmission real parameters are all lower than the transmission lower limit parameters correspondingly, wherein the transmission real parameters comprise a data sending rate, a data receiving rate and a current network signal intensity indication. The method determines the transmission real parameters of the current network in a connection state by confirming the connection mode of the current network, and switches a network connection mode according to the comparison between the transmission real parameters and the preset transmission lower limit parameters, and accordingly, under a multi-network connection mode, a mobile terminal can rapidly confirm a connection mode at the same time of guaranteeing a network rate, and maintain data transmission stability.

A computer-implemented telecommunications spending analysis system extracts telecommunications traffic detail data from billing statements provided by telecommunications carriers and converts the traffic detail data to a generic data format for aggregation in a uniform customer traffic history database. The spending analysis system compares billed rates against estimated market prices stored in a best of class (BOC) database and notifies the user of possible cost savings attainable in a renegotiated contract. A web-based RFP system facilitates preparation of a request for proposals (RFP) and solicitation of vendors to bid on the RFP in an online reverse auction environment, both for telecommunications services and other commodities. The RFP system may access the uniform customer traffic history database to facilitate preparation of a traffic forecast of the RFP. Upon completion of an RFP auction, the RFP system updates the estimated market prices of the BOC database based on the vendor bids.

The invention discloses an alternating current / direct current transient steady state integrated detection device. The alternating current / direct current transient steady state integrated detection device includes an alternating current / direct current transient steady state integrated test power source and an electronic type current transformer field test detection system; the alternating current / direct current transient steady state integrated test power source includes a direct-current impact power source, a direct-current transient steady state power source, an alternating current power frequency transient steady state power source and a combined loop control system; and the electronic type current transformer field test detection system includes a standard transformer, a standard conversion device and a transformer composite error tester. With the detection device adopted, transient steady state integrated tests of a direct current transformer and an alternating current transformer can be realized separately. With a method according to which a combined test loop composed of the direct-current impact power source, the transient steady state test power source and the alternating current transient steady state test power source is adopted, the capacity of an energy-storage capacitor in a direct-current impact / transient steady state test can be obviously decreased, and important parameters such as a transient current peak value, a decay time constant and step current response can be adjusted and configured more flexibly and accurately.

As the prior Diffserv router applies mode of single queue data buffering and shortest route forwarding, in the situation of limited bandwidth (link capacity) and multi-router relaying, inevitably existing the problem of delay transfinite and high service priority data stream blocking, both making is difficult to implement the QoS (service quality) capability. For resolving the problem, the invention provides multi-queue parallel processing and grading access control Diffserv edge router. The invention provided the Diffserv edge router can assure the delay and low package losing rate of high service data stream so as to implement grading multi-rate transmission of mixed data stream in the situation of limited link capacity.

The invention discloses a network energy-saving method based on base stations to be closed preferably. Firstly, an access function of a user and load functions and energy consumption functions of the base stations are defined, cost brought by closing of a certain base station to increase of loads of a whole network is estimated by means of the defined functions, a base station sequencing method is designed on the basis of network cost, and ultimately, accordingly to sequencing of the base stations, the base stations which are good in energy-saving effect are closed preferably, and switching is finished by the user according to the rule that the network loads are increased in the minimized mode. According to the method for closing the base stations preferably, overall consumption of network energy can be reduced, performance is close to the optimal value of exhaustive solving, and meanwhile calculation complexity is greatly reduced.

The invention discloses a differentiated service core router and a data forwarding method thereof. The method comprises the following steps: differentiating data stream input to the core router according to the class and priority rating; determining the access data stream according to the output connection capacity of the core router; acquiring a data buffer queue; performing packet loss control for each data stream of low priority; searching a forwarding path of the data stream of high priority in the differentiated priority queue according to a routing table; and preferentially forwarding the data stream of high priority. Through the technical means of input data stream differentiation, access control, differentiated priority queue packet loss control and the like, the exit bandwidth of the router is fully utilized, and the rate, minimum delay and packet loss rate of the data stream of voice service and multimedia service of high priority users are ensured.

The invention relates to a control system and a control method of a single- axis turntable based on an inertia device gyroscope and accelerometers, which are the control system and the control method for turntables, belonging to the field of inertia technology. The method and the system aim at solving the problem that traditional single-axis turntables can not solve the low rate precision and low stationarity by controlling. The single- axis turntable based on the inertia device gyroscope and accelerometers comprises a disc, a liquid floated gyroscope and six accelerometers, wherein the six accelerometers are all arranged on edge around the disc and are distributed evenly. The control system of the single- axis turntable based on the inertia device gyroscope and accelerometers comprises the single- axis turntable based on the inertia device gyroscope and accelerometers, a turntable control box, and a turntable control computer, wherein the turntable control box comprises a measuring interface of an angle encoder, a motor-driven interface circuit, a measuring interface of the liquid floated gyroscope, measuring interfaces of the accelerometers, and serial or parallel communication ports. The control method and the control system are used for measuring instantaneous angle rates of the turntable.

The invention provides a feeding system of a toothbrush bristle planting machine and relates to the field of toothbrush manufacture. The feeding system comprises a conveyor belt system, a separating and feeding system, a steering and turnover system and a grabbing and transfer system, wherein the conveyor belt system, the separating and feeding system, the steering and turnover system and the grabbing and transfer system are sequentially connected in the X direction. The conveyor belt system comprises a conveyor belt moving in the X direction, a conveyor belt driving device, a conveyor belt rack and a feeding bin arranged in the Z direction. The separating and feeding system comprises a feeding system, a separating system and a pair of side baffles. The side baffles are fixedly connected and are respectively parallel to a ZX plane. The steering and turnover system comprises a rack, a walking system, a steering system and a turnover system. The grabbing and transfer system comprises a support arranged in the Z direction, a beam arranged in the Y direction, a transfer system and a grabbing system. The feeding system further comprises a control system. In conclusion, a single toothbrush can be fed to the toothbrush bristle planting machine by the feeding system, it is effectively guaranteed that the position of a toothbrush handle of the toothbrush, the forward face and backward face of the toothbrush handle and the facing direction of a toothbrush head are uniform, and therefore the purpose that the bristle planting effect and the bristle planting speed of the toothbrush bristle planting machine are effectively guaranteed is achieved.

The embodiment of the invention discloses a connection method, a connection device, a vehicle-mounted system, a terminal and a storage medium. The method comprises the steps of determining a sharing port by enumerating USB ports of the terminal, and returning information of the sharing port back to the terminal, thus allowing the terminal to map the sharing port to a terminal network card; loading a driver corresponding to the sharing port, and mapping out a vehicle-mounted terminal network card corresponding to the sharing port; acquiring an IP address of the terminal network card and the IP address distributed by the terminal to the vehicle-mounted terminal network card; and building a connection channel between the vehicle-mounted system and the terminal used for transmission data according to the IP address of the vehicle-mounted terminal network card and the IP address of the terminal network card. According to the method provided by the embodiment of the invention, connection between an apple phone and the vehicle-mounted system can be achieved without MFI authentication, and hardware and development costs are saved under the premise of ensuring transmission bandwidth and speed.

The invention discloses an intaglio printing process of water-based ink. According to the process, laser electric carving intaglio plate rollers are adopted, the net lines of each plate roller are set to range from 80 lines to 110 lines, the needle angle of each plate roller is set to range from 130 degrees to 150 degrees, the layer plate depth in the plate roller printing process is set to range from 24 u to 28 u, and the on-site spot color plate depth is set to range from 28 u to 34 u. Through the adoption of the technical scheme of the process, the intaglio printing process of the water-based ink is obtained; due to the fact that the water-based ink is high in covering rate, good in online rate and good in glossiness, on the premise that the amount of the water-based ink is not changed, the product printing quantity is remarkably increased, the printing quality and the printing ratio are guaranteed, and the production cost is reduced; and intaglio printing equipment does not need to be modified greatly, the limiting factors of the water-based ink applied to intaglio printing are solved, and development of water-based ink printing is promoted.

The invention relates to a threshold adjusting method and system of a modulation coding mode. The method comprises the following steps: obtaining multiple samples, wherein the samples are about feedback information of transmission at a time, the modulation coding mode employed by the transmission corresponding to the feedback information in the (i+2)th sample is MCSi, and the modulation coding mode employed by the transmission corresponding to the feedback information in the first sample is MCS0; determining whether to adjust the threshold of the modulation coding mode MCSi be referring to the (i+1)th sample and the (i+2)th sample, and when it is determined that downward adjusting is needed, adjusting the threshold downwards; when it is determined that upward adjusting is needed, adjusting the threshold upwards; and when it is determined that adjusting is unnecessary, maintaining the threshold unchanged, wherein i is an integer greater than or equal to zero.

A local area network movable comprehensive monitoring and alarming system based on the LabVIEW comprises a monitoring service end and monitoring equipment which are connected. The monitoring equipment comprises a local area network monitoring device box position control module and a monitoring device box, wherein a local area network video monitoring and alarming module, a local area network temperature monitoring and alarming module and a local area network external light control module are arranged on the monitoring device box. The monitoring service end moves the monitoring device box according to a monitoring request of a monitoring client end, video monitoring and alarming, temperature monitoring and alarming and external light control are started, and the conditions of a monitoring site and related alarming signals are transmitted to the monitoring client end in real time; the monitoring client end is a remote monitoring end port and is responsible for sending a monitoring instruction to the monitoring service end according to the monitoring requirements of monitoring staff. The local area network movable comprehensive monitoring and alarming system based on the LabVIEW can realize local area network remote comprehensive monitoring and alarming functions only through the LabVIEW program and the monitoring device, the monitoring process does not need any expenses, the system is built conveniently, and the manufacturing cost is low.

The invention discloses a mask production line, which comprises a rack, wherein the rack is sequentially provided with a placing frame, a shaping mechanism, a cutting and flanging mechanism, an ultrasonic welding and cutting-off mechanism, an edge separating mechanism, a first overturning mechanism, a second overturning mechanism, an ear belt line welding mechanism, an ear belt folding mechanism and a discharging mechanism, wherein the placing rack for placing mask cloth and a nose bridge line; the shaping mechanism is used for shaping the mask cloth; the cutting and flanging mechanism is usedfor cutting off a nose bridge strip and flanging the mask cloth; the ultrasonic welding and cutting-off mechanism is used for welding the nose bridge strip in the mask cloth and cutting off the maskcloth; the edge separating mechanism is used for separating edges of the mask; the first overturning mechanism and the second overturning mechanism are connected with the edge separating mechanism andused for overturning the mask; the ear belt line welding mechanism is connected with the first overturning mechanism and the second overturning mechanism and used for welding ear belt lines to the mask; the ear belt folding mechanism is used for hot-pressing and shaping the ear belt lines; and the discharging mechanism is used for discharging the mask. According to the mechanism, the ear belt line welding is designed into two stations, so that the reasonable distribution of the working time of each station is realized, the station waiting time during mask production is reduced, and the production rate during mask production is increased.

The invention is a method and system of implementing option interests in real property. The owner of the property receives funds from an investor, which can be used to provide the property owner with income for living expenses or to use to lower the property owner's financing costs. In exchange for each payment, the property owner grants the investor a call option to purchase coupled with a put option to sell a fractional interest in the real property at some future date. The value of the investor's fractional share will increase along with the value of the property, allowing the investor to participate in rising property values. The owner does not pay interest on the monies received, leaving the cash flow for other purposes.

The invention discloses a rubber mixing technology. When a central open mill dumps rubber on a central conveying belt, a sulfuration auxiliary agent adding apparatus simultaneously conveys a weighed sulfuration auxiliary agent masterbatch onto an ejected film. The invention has beneficial effect that the sulfuration auxiliary agent such as a sulphur promoter is added during rubber dumping of the central open mill, and is sent to various sets of open mills downstream through the conveying system. On the one hand, dust flying and loss during addition of the sulfuration auxiliary agent are avoided, in order to ensure ration supply of the sulfuration auxiliary agent and avoid environmental pollution; on the other hand, the way of adding sulfuration auxiliary agent can avoid error appearance rate during separate addition of sulfuration auxiliary agent to various sets of open mills downstream, in order to ensure uniform performance and quality of a final mixing. The employed way of adding the sulfuration auxiliary agent to the central open mill reduces equipment amount, and save equipment investment, so as to lower processing costs.

The invention provides a fabricated concrete tower tube piece assembly platform and assembly method. The fabricated concrete tower tube piece assembly platform comprises a center frame, connecting sections, supporting beams, supporting panels, limiting positioning pin holes, positioning pins, leveling supporting feet, base plates and the like. The octagonal center frame and the eight supporting beams are connected through the connecting sections to form a spliced platform body structure. The supporting panels are welded to the top faces of the supporting beams, a series of limiting positioningpin holes are formed in the supporting panels, and the positioning pins are inserted to achieve rapid and accurate positioning of concrete tower tube pieces. The leveling supporting feet are arrangedat the bottoms of edge beams of the center frame and the bottoms of the outer ends of the supporting beams and serve as supporting supports and leveling devices of the platform. The base plates are arranged at the bottoms of the leveling supporting feet and used for dispersing upper concentrated loads and reducing local settlement of a foundation. According to the fabricated concrete tower tube piece assembly platform and assembly method, rapid and accurate assembly of the fabricated concrete tower tube pieces in the technical field of wind power can be realized, the concrete tower rapid construction concept of instant assembly and instant hoisting is embodied, and a quite excellent technical scheme for assembly construction of the fabricated concrete tower tube pieces prefabricated in afragmentation manner is achieved.

The invention belongs to the field of lithium ion battery negative electrode materials and electrochemistry, and particularly relates to a porous core-shell structure silicon-carbon negative electrodematerial for a lithium ion battery and a preparation method thereof. The silicon-carbon negative electrode material is of a porous core-shell structure, wherein the inner core is formed by homogeneously compounding nano silicon and porous carbon, and the shell is coated with carbon formed by an organic cracking carbon source. According to the porous core-shell structure silicon-carbon negative electrode material prepared by the invention, the porous carbon is formed by combustion and carbonization of a carbon precursor, the nano-silicon is embedded into pores of the porous carbon, and the prepared negative electrode material is high in specific capacity, good in cycle performance and high-rate performance charge-discharge performance, simple in preparation process, low in cost and suitable for industrialization.

The invention provides a hybrid precoding method and device in a large-scale MIMO system. The method comprises the following steps that all users are divided into a plurality of groups according to aspatial correlation matrix of each user, so as to obtain a plurality of groups of user sets; for each user set, according to the statistical signal leakage noise ratio of the user set, optimal analogprecoding is obtained by combining the hardware constraint conditions of a self-adaptive connection network ACN and an analog phase shifter APS; according to the optimal analog precoding, the connection in the CAN and the phase in the APS are determined, so as to realize hybrid precoding. According to the method and the device in the invention, the hardware complexity, the power consumption and the CSI expenditure can be comprehensively considered, a hybrid precoding scheme of the mixed time scale is realized on the basis of user grouping, and mixed precoding with high energy efficiency, low SCI overhead, low hardware complexity and low computational complexity is realized while a certain average user achievable rate and fairness are ensured.

The invention discloses a hybrid precoding design method under a millimeter wave large-scale MIMO-NOMA system based on physical layer security. The method comprises the following steps: acquiring a signal of an mth user in a gth beam of a single cell; when the number of users may be greater than the number of RF chains, grouping users, receiving data and channel state information by each group ofusers in one wave beam, calculating the channel gain of each user, taking the user with the maximum channel gain as the cluster head of the first group of wave beams, respectively calculating the correlation between the redundant users and each cluster head user, and selecting the cluster head with the maximum correlation as the same group; generating an analog pre-code A and a digital pre-code dkaccording to the channel state information of the cluster head. According to the invention, user grouping is efficiently completed, and a good foundation is provided for subsequent analog pre-codingand digital pre-coding.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a hollow-structure carbon and silicon negative pole material used for a lithium ion battery. The inner side of the negative pole material is of a hollow structure, and a wall layer of the negative pole material comprises an inner wall and an outer wall; the inner wall is subjected to homogeneous phase compounding by nanometer silicon and a low carbon residue carbon source; the outer wall is a carbon coating layer formed by an original pyrolysis carbon source; the particle size of the nanometer silicon is 5-300nm; the softening point of the low carbon residue carbon source is less than 200DEG C, and a carbon residue rate is less than 40%; the thickness of the outer wall is 0.1-10 microns; thethickness of the inner wall is 1-8 microns. The invention designs the large hollow-structure carbon and silicon negative pole material used for the lithium ion battery, a large hollow part is reservedfor the volume expansion of silicon, the volume expansion problem of a silicon negative pole can be obviously solved, the formation of the large hollow structure is guaranteed by the low carbon residue carbon source, meanwhile, the nanometer silicon is subjected to homogeneous phase dispersion, a transmission channel and rate of electrons and lithium ions can be guaranteed, and the carbon coatinglayer coats the outmost layer so as to form a protection shell for isolating electrolyte.

A soft extraction paper slitting device comprises a machine frame, a band-sawing machine, an intermittence paper feeding mechanism, a main driving mechanism and a control device, wherein the intermittence paper feeding mechanism is arranged on the machine frame in the longitudinal direction in a horizontal sliding mode, the main driving mechanism is arranged on the machine frame, is connected with the intermittence paper feeding mechanism and makes horizontal and reciprocating motion in the longitudinal direction, the control device is respectively connected with the intermittence paper feeding mechanism, the band-sawing machine and the main driving mechanism, the intermittence paper feeding mechanism comprises a sliding seat which is arranged on the machine frame in the longitudinal direction in a horizontal sliding mode, a first belt conveying mechanism which is transversely and horizontally arranged on the sliding seat and is used for conveying soft extraction paper to the band-sawing machine, a second belt conveying mechanism which is arranged on the sliding seat, is located above the first belt conveying mechanism and is used for compressing the soft extraction paper before the soft extraction paper is cut, a third belt conveying mechanism which is arranged on the sliding seat and is used for conveying the cut soft extraction paper, and a servo motor which drives the first belt conveying mechanism, the second belt conveying mechanism and the third belt conveying mechanism to work through a transmission mechanism. The soft extraction paper slitting device has the advantages of being high in cutting efficiency, good in quality and the like.

The invention discloses a miniature relay data transmission user terminal system and a realization method thereof. The system includes a receiving channel, a transmission channel and a system control module, and at the same time, the invention also provides a realization method of the miniature relay data transmission user terminal system. With use of the invention, the overseas transmission problem of load data transmission required by the user is solved; the real-time data transmission capability of the satellite is improved; the arc of the load data transmission is increased; the requirement of the user is met to the maximum; and the executive ability of the satellite is improved.

The invention discloses a water supply system of an intelligent foodstuff feeder and the intelligent foodstuff feeder. The water supply system includes supports, a foodstuff barrel, a manger, a water outlet pipe, a water inlet pipe, and a water tank; the foodstuff barrel is fixed above the manger through the supports; a water outlet of the water outlet pipe is positioned above the manger and under the foodstuff barrel; the other end of the water outlet pipe is connected in the inner part of the water tank; one end of the water inlet pipe is connected to a water pipe, and the other end of the water inlet pipe is connected in the inner part of the water tank; and the water tank includes a housing, a water pump, and a floating ball liquid level controller, wherein a second through hole for allowing the water inlet pipe to enter and a first through hole for allowing the water outlet pipe to pass through are formed in the top of the housing, the water pump and the floating ball liquid level controller are arranged in the housing, the water pump is fixed on the bottom of the housing, one end of the water pump is connected to the water outlet pipe, the floating ball liquid level controller is fixed on the upper part of the housing, and the floating ball liquid level controller is connected to the water inlet pipe. Compared with the prior art, the advantages of the invention are that the water supply system is simple in structure, can continuously and quantitatively supply water, and can achieve accurate ratio of water and feed.

The invention relates to a resource allocation algorithm of D2D communication in a cellular network for solving the technical problem of improving the poor energy efficiency. The problem is well solved by the following technical scheme: establishing a cellular network D2D communication model, and defining constraint conditions; performing power control based on an improved power control algorithm,and eliminating users not meeting the condition from a reusable set, comprising: calculating a power allocation closed expression (the formula is shown in the specification) to serve as an optimal transmitting power combination satisfying the constraint conditions, wherein (the formula is shown in the specification) represents the optimal transmitting power of a D2D user m, and (the formula is shown in the specification) represents the optimal transmitting power of a cellular user n; and obtaining an optimal channel pair by using an improved matching algorithm, and obtaining an optical channel allocation scheme satisfying the constraint conditions. The resource allocation algorithm can be applied to the D2D communication.