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40 results about "Demand rate" patented technology
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Demand rate. noun. : a rate (as of electric power) based on the maximum amount that a customer requires to be kept available for use.
Nonlinear adaptive control of resource-distribution dynamics
InactiveUS20060013132A1Improves controller performanceImprove performanceError preventionTransmission systemsReal systemsResource Management System
Nonlinear adaptive resource management systems and methods are provided. According to one embodiment, a controller identifies and prevents resource starvation in resource-limited systems. To function correctly, system processes require resources that can be exhausted when under high load conditions. If the load conditions continue a complete system failure may occur. Controllers functioning in accordance with embodiments of the present invention avoid these failures by distribution shaping that completely avoids undesirable states. According to one embodiment, a Markov Birth / Death Chain model of the resource usage is built based on the structure of the system, with the number of states determined by the amount of resources, and the transition probabilities by the instantaneous rates of observed consumption and release. A control stage is used to guide a controller that denies some resource requests in real systems in a principled manner, thereby reducing the demand rate and the resulting distribution of resource states.
Owner:CREATIVE TECH CORP
Method and apparatus for wrapping a load
InactiveUS6918229B2Eliminate the problemWrappers shrinkageWrapping material feeding apparatusStretch wrapEngineering
The present invention relates to an apparatus and method for stretch wrapping a load in an efficient manner so as to tightly and securely wrap the load at a desired tension without rupturing the packaging material. The method and apparatus compensate for variation in demand rate as the load is wrapped so as to apply the wrapping material to a load at a desired force, maintain the desired containment tension on the wrapping material on the load after wrapping, and prevent the wrapping material from rupturing during wrapping. The apparatus combines two systems, power assisted roller stretch (“PRS”) and roller stretch (“RS”) to vary the supply rate of the packaging material as the demand rate varies. The apparatus automatically switches between the two types of prestretch to achieve “high” and “low” wrapping force dependent upon the demand rate. Changes in the demand rate are sensed by monitoring changes in the payoff angle of the packaging material extending between the dispenser and the load.
Owner:LANTECH COM
Predicting taxi utilization information
Techniques are described for automatically analyzing contingencies in information predicting taxi demand. This is to generate representative information regarding current or future taxi demand, and for using such generated representative taxi demand. Contingent demand information may be generated for a variety of types of useful measures of taxi demand rates, such as for projecting expected likelihood of finding a passenger at each of several road locations. Generated representative contingent taxi demand information may be used in various ways to assist taxi and livery service drivers plan optimal routes and schedules. The historical and / or recent contingent demand data may be used to generate the representative traffic flow information. This may include data readings from mobile data sensors in the one or more vehicles, data sensors in or near the roads, or aggregate data sources collected from one or more sensors or through publicly available data sets.
Owner:FASTERFARE
Marshalling yard dispatching automation system
ActiveCN109532960AAchieve transparencyAutomatic compilationRailway traffic control systemsInformation resourceHoist scheduling
The invention discloses a marshalling yard dispatching automation system. The system integrates information resources of a railway administration dispatching office dispatching system, a locomotive depot train number recognition system, a locomotive depot applying safety management information system, a station management information system, a station construction management system, an integratedcontrol system and a high-definition goods inspection system, transparent and undifferentiated sharing of data is achieved, automatic, intelligent, dynamic and real-time programming and adjusting of dispatching and commanding and work are achieved, and therefore the accuracy of a dispatching plan is improved, and demand rate of the dispatching plan is increased.
Owner:SIGNAL & COMM RES INST OF CHINA ACAD OF RAILWAY SCI +3
Method and system for analyzing inventory purchasing opportunities with respect to inventory health
Owner:AMAZON TECH INC
Processing method and processing device of demand data of high speed train
ActiveCN104572831AImprove efficiency in processing demand dataReduce human influenceResourcesSpecial data processing applicationsComputer scienceDemand rate
The embodiment of the invention discloses a processing method and a processing device of demand data of a high speed train. The processing method comprises the following steps: acquiring demand data of a known high speed train and classifying the demand data; establishing an incidence relation between the classified demand data and a related structure of a product structure tree, and establishing a corresponding demand data template according to the demand data, the incidence relation and a demand type; when demand data of the new high speed train design are received, generating demand instance data, contained in the demand data of the new high speed train design, of the known high speed train according to the incidence relation and the demand data template. Obviously, when the demand data of the new high speed train is received, the demand instance data, contained in the demand data of the new high speed train design, of the known high speed train is generated through the incidence relation and the demand data template, so that the efficiency of processing the demand data is improved, man-made influences are reduced and the error probability is reduced.
Owner:CRRC QINGDAO SIFANG CO LTD
Method and system for traffic management and resource allocation on a shared access network
ActiveUS8660006B2Transmission systemsFrequency-division multiplex detailsAccess networkNon real time
A method for traffic management and resource allocation on a shared access network including estimating a bandwidth capacity of a gateway, determining a demand rate of an IP gateway, allocating bandwidth to the IP gateway based on the demand rate, traffic priority, or traffic weighting, allocating bandwidth to the IP gateway in advance of demand when excess bandwidth is available, scheduling traffic at the IP gateway based on traffic priority, service plan of a VSAT, or physical layer properties of the VSAT, performing priority queue servicing of traffic at a gateway using a real time traffic priority queue, a non-real time traffic priority queue, two or more modulation and coding queue groups, and a code block queue.
Owner:HUGHES NETWORK SYST
Streaming media video-on-demand duplicate hybrid buffer strategy based on cloud server cluster
InactiveCN103297431APrevent copyingAvoid deletionTransmissionSpecial data processing applicationsVideo on demandDemand rate
The invention discloses a method for effectively buffering streaming media video-on-demand duplicate hybrid buffer strategy based on a cloud server cluster. The method includes performing prefix dynamic blocking on the video duplicates based on video duration, and utilizing a dynamic prefix and complete duplicate hybrid storage strategy to improve system efficiency and experience quality of users; confirming number of needed duplicates according to factors such as video hot degree and confirming two types of the duplicates (complete duplicates and prefix duplicates) on the basis of demanding rate, and dynamically segmenting prefixes of the prefix duplicates on the basis of video duration so as to generate the prefix duplicates; and when storage space is enough, utilizing a hot balance and load balance combining method to store the duplicates, and when storage space is not enough, smoothly deleting hot-degree-decreasing video duplicates based on time window threshold values. By the method, users can obtain good video-on-demand experience.
Owner:NANJING UNIV OF POSTS & TELECOMM
Method and system for forecasting demand of rotable parts
A method for forecasting a demand for rotable parts includes collecting demand data for one or more rotable parts associated with a product inventory. A demand pattern associated with the demand data is identified for each of the one or more rotable parts. A future demand associated with the one or more rotable parts is forecasted for at least one future demand period based on the identified demand pattern. An inventory level associated with each of the one or more rotable parts is established, for the at least one future demand period, a based on the future demand and a predetermined customer service level. The method also includes adjusting a manufacturing schedule associated with the one or more rotable parts based on the established inventory level.
Owner:CATERPILLAR INC
Form generation method, apparatus and system
ActiveCN106126221AFlexibleSoftware designSpecific program execution arrangementsSoftware engineeringIndustrial engineering
The invention provides a form generation method, apparatus and system. The form generation method comprises the steps of setting at least one template, determining a target project attribute, and determining a target template according to the target project attribute; calculating a demand rate of each dialogue box in the target template according to the target project attribute; and adjusting a dialogue box output sequence of the target template according to the demand rate of each dialogue box. According to the scheme provided by the form generation method, apparatus and system, the form generation process is flexible.
Owner:SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD
Goods inventory management method and device
InactiveCN103400252AFully automatedAchieve economyLogisticsInventory managementTransport engineering
The embodiment of the invention provides a goods inventory management method and device. The method mainly comprises the following steps: establishing an economical goods ordering batch model according to ordering cost, inventory cost and consumption rate; establishing a goods reordering point model according to a goods demand rate, an ordering extraction period and a preset deviation value. The method comprises the following specific steps: during delivery of goods, subtracting the delivery quantity of goods from an inventory quantity before the delivery of the goods to obtain the practical inventory of goods; when the practical inventory amount is not more than a reordering inventory amount calculated by using the reordering point model, calculating the economical ordering quantity of goods according to the economical goods ordering batch model, and ordering the economical ordering batch of goods. According to the embodiment of the invention, automation, economization and safety of inventory management of goods are realized, and the inventory management efficiency of goods such as scientific research equipment is increased effectively.
Owner:HUADI COMP GROUP
Node incentive method based on buying-selling model and two-layer optimization
ActiveCN105682176AMeet business speed requirementsSimple methodHigh level techniquesWireless communicationVector optimizationBusiness requirements
The invention discloses a node incentive method based on a buying-selling model and a two-level optimization; the method firstly sets a multi-network multi-terminal communication scenario under a wireless ubiquitous environment and congests a node s with extremely high business demand rate in a network cell A; an idle network cell set tau nearby the node s is equal to {k1, k2 to km}, and a corresponding access point set D is equal to {d1, d2 to dm}, wherein the m is the number of idle network cells; ki is an element of tau and a corresponding relay node set Ri is equal to {ri1, ri2 to rin}. The method, by combining the characteristics of an ubiquitous network and an ubiquitous terminal of the wireless ubiquitous environment and according to the buying-selling model between a business requirement node and a relay node constructed in a wireless communication environment, realizes the purpose of cooperative forwarding of the incentive relay nodes; and on the basis of the incentive relay nodes, through a two-level optimization mode, an objective that the business requirement node meets the business rate requirement with a lowest incentive price is achieved.
Owner:NANJING UNIV OF POSTS & TELECOMM
Warship equipment availability evaluation method
The invention discloses a warship equipment availability evaluation method. The method includes: acquiring part demand rates of equipment maintenance station sites at any time; calculating numbers ofparts of the station sites in repairing according to the part demand rates of the station sites; calculating numbers of the parts of the station sites in transit according to the part demand rates ofthe station sites; calculating maintenance guarantee delay numbers and transport guarantee delay numbers of the parts of the station sites according to the part demand rates of the station sites; acquiring part supply mean-values and variances of the station sites; calculating and obtaining expectation shortage numbers of the parts according to part inventory numbers, part supply values and part shortage numbers of the station sites; combining the part supply mean-values and variances to calculate availability of the parts according to the expectation shortage numbers of the parts and the variances; and calculating availability of equipment. The method of the technical solution of the invention is accurate in a model algorithm, is fast in a calculation speed, is suitable for use in establishing an any-hierarchy equipment time-varying availability model, is small in errors when availability is low and repair probability is higher, and is wide in an applicability range.
Owner:NAVAL UNIV OF ENG PLA
Bus transfer rate control method and device for communication module
ActiveCN104320221AImprove experienceImprove standby battery lifePower managementError preventionNetwork connectionMobile device
The invention discloses a bus transfer rate control method and device for a communication module. The method comprises the following steps that the communication demand rate of a system or the network connection rate of the communication module is acquired; the bus transfer rate satisfying the communication demand rate of the system or the network connection rate of the communication module is figured out; the transfer rate of a bus connected with the communication module is set to be the bus transfer rate figured out. According to different network use conditions, the rate of the bus is controlled dynamically; under the condition that user usage is not affected, the power consumption of equipment on the bus is lowered, the standby and runtime capacities of the mobile equipment are improved, and user experience is improved; meanwhile, by using the bus transfer rate control method and device, the cost is low.
Owner:FUZHOU ROCKCHIP SEMICON
Method for adjusting rate of transmitting end, device, and system for adjusting rate of transmitting end
The embodiment of the present invention provides a method for adjusting the rate of a transmitting end, a device, and a system for adjusting the rate of a transmitting end, and relates to the field ofcommunications to solve a long congestion feedback period and intimely congestion feedback. The method comprises a first network device receives a first data message sent by a last hop network device, wherein the first data message includes a first demand rate, a first deadline, and a first transmitting rate corresponding to a first data stream; the first network device obtains a second transmitting rate of the first data stream; the first network device transmits a feedback message to the second network device when the second transmitting rate is less than the first transmitting rate, wherein the feedback message includes the second transmitting rate and is configured to instruct the second network device to notify the transmitting end to adjust the rate at which the first data stream istransmitted according to the second transmitting rate. The method in the embodiment of the present application is applied to network congestion feedback and rate adjustment.
Owner:HUAWEI TECH CO LTD
D2D communication resource scheduling method and D2D communication resource scheduling device
ActiveCN108471608AMeet service quality requirementsGood balance performanceMachine-to-machine/machine-type communication serviceQuality of serviceMultiplexing
The invention discloses a D2D communication resource scheduling method and a D2D communication resource scheduling device, which are used to solve a resource scheduling unfairness problem, and are used to reduce signaling overheads. The D2D communication resource scheduling method comprises steps that any time slot included in a current scheduling period, a rate gain factor and a service quality factor of every D2D user group are respectively determined, and the rate gain factor is used to represent the rate gain after the multiplexing of the RB of the D2D user groups, and the service qualityfactor is used to represent the demand rate satisfying conditions of the D2D user groups in the current time slot; by aiming at every D2D user group, the scheduling priorities of the D2D user groups are determined according to the rate gain factor and the service quality factor; according to the scheduling priorities of the D2D user groups, first N / n D2D user groups are selected sequentially fromtop to bottom, and N is the number of the to-be-scheduled D2D user groups; the available RB included by the current time slot are assigned to the selected D2D user groups.
Owner:中国移动通信集团陕西有限公司 +1
Inventory management
An apparatus includes a controller that is operable to determine a safety stock factor that enables a reorder point for an item to be calculated. The controller is also operable to determine an expected amount of backorders for the item using a backorder function based on the reorder point, a reorder quantity, a demand rate, and a lead time.
Owner:THE BOEING CO
Spare parts stock risk decision evaluation method based on differentiation holding cost
The invention provides a spare parts stock risk decision evaluation method based on differentiation holding cost. The spare parts stock risk decision evaluation method comprises the following steps: respectively obtaining a demand rate factor, a penalty time factor, a risk cost factor, a unit price factor and a holding cost proportional factor of spare parts respectively; then, calculating the a stock risk decision factor of the spare parts RIndex, if the Rindex is larger than 1, at least storing one by the spare parts, if Rindex is smaller than (-)1, not storing, if the value of the Rindex is between (-)1 and (1), indicating that the risk lost cost of the spare parts and the stock holding cost of the spare parts are close, re-estimating each factor to determine the correction of the decision. According to the spare parts stock risk decision method by taking the introduced differentiation spare parts holding cost factor as a parameter, the calculation of the equipment spare parts stock risk decision is relatively accurate.
Owner:HEFEI GENERAL MACHINERY RES INST +1
Construction method of integral replacement of existing electric railway overhead contact system crossover and section insulator
ActiveCN108909533AReduce the quantity requiredDemand quantity get rid ofTrolley linesElectricityEngineering
The invention relates to a construction method of integral replacement of an existing electric railway overhead contact system crossover and a section insulator. The construction method includes following steps: a, decomposing and mooring the existing crossover; b, measuring decomposing length of a new crossover to be set up; c, setting up a long anchoring section of the new crossover, and removing a long anchoring section of the existing crossover; d, integrally replacing a new crossover short anchoring section and a new section insulator; e, performing suspension adjusting and power transmission operation. In actual work, according to actual conditions that railway busy mainline vertical skylights are short in blocking time, few in number and low in demand rate and existing overhead contact system crossover and station tracks are in a same anchoring section, the construction method is acquired through careful design and repeated verification. Inherent thinking of existing crossover and section insulator replacement construction processes is broken through, and construction efficiency and construction safety are remarkably.
Owner:中铁建电气化局集团第三工程有限公司
Method for conducting anti-fingerprint treatment for galvanized sheet on color-coating production line
InactiveCN109622339AImprove redemption ratePretreated surfacesCoatingsProduction lineEconomic benefits
The invention provides a method for conducting anti-fingerprint treatment for a galvanized sheet on a color-coating production line. The anti-fingerprint treatment is carried out on galvanized band steel which is not subjected to posttreatment on the color-coating production line, a production method of color-coating production line roller coating is adopted, coating of an anti-fingerprint coatingis evener, the weights of different film weights of the anti-fingerprint coating are more effectively controlled, galvanized anti-fingerprint products which meet market requirements are produced, newfunctions of the color-coating production line are developed, and good economic benefits can be obtained. Compared with the prior art, the method for conducting the anti-fingerprint treatment for thegalvanized sheet on the color-coating production line fills a technology gap of conducting the anti-fingerprint treatment for the galvanized sheet on the color-coating production line, and the new functions of the color-coating production line are developed. In addition, the demand rate of orders is improved by the method, and comprehensive cost reduction achieves above 200 yuan per ton.
Owner:MAANSHAN IRON & STEEL CO LTD
Rate optimized power consumption in micro wave radio links
ActiveCN103299689AIncrease power consumptionImprove throughputPower managementError detection/prevention using signal quality detectorMicrowaveControl power
The embodiments herein relate to a method in a near end radio link node (201n, 501n) for controlling power consumption in a radio link system (200, 500). The near end radio link node (201n, 501n) is connected to a far end radio link node (201f, 501f) via a radio link (202). The near end radio link node (201n, 501n) obtains a granted rate of traffic on the radio link (202) between the near end radio link node (201n, 501n) and the far end radio link node (201f, 501f). The near end radio link node (201n, 501n) obtains a demanded rate of the traffic between the near end radio link node (201n, 501n) and the far end radio link node (201f, 501f). The near end radio link node (201n, 501n) controls power consumption for the radio link system (200, 500) based on the granted rate and the demanded rate.
Owner:TELEFON AB LM ERICSSON (PUBL)
Multi-process scheduling method for improving contract demand rate by utilizing aggregate production rule
InactiveCN105488602AEfficient schedulingEfficient Contract SchedulingResourcesOperation schedulingSingle process
The invention provides a multi-process scheduling method for improving contract demand rate by utilizing an aggregate production rule. The multi-process scheduling method comprises the following steps: an analyzing step based on a key performance indicator (KPI) method: analyzing a contract structure, a schedule structure and a schedule executing condition; an intelligent scheduling step: summarizing procedures and / or unit aggregation rules into an aggregate condition, summarizing contract priority rules into a priority sequence rule and a screening condition, summarizing expert experiences and optimizing strategies into an intelligent calculation method, and carrying out software implementation, so as to realize single-process scheduling and multi-process scheduling; and a visualized interaction step: displaying a scheduling result and providing a man-machine interaction editing function. The multi-process scheduling method aims to solve the problems of relatively low scheduling efficiency and optimizing level as plan drawing in the aspect of contract scheduling of most special steel manufacturers is still carried out manually. The multi-process scheduling method is wide in application prospect.
Owner:SHANGHAI BAOSIGHT SOFTWARE CO LTD
Hypergraph partition algorithm-based related data storage method
The invention relates to a hypergraph partition algorithm-based related data storage method. The method comprises the steps of calling a task needed to be subjected to data processing as a demand mode, wherein the demand mode needs multiple pieces of data stored in a data center node; after the demand mode is determined, predicting a demand rate; according to the setting of the demand rate, selecting a measurement standard, namely, a hypergraph partition standard; building a hypergraph model; performing a coarse partition process; performing an initialization process; and performing an optimization process: randomly selecting fission nodes for k sub-graphs, performing fission recovery in sequence, constructing a series of hypergraphs, until the scale reaches the scale of original un-weighted hypergraphs, and obtaining k optimized sub-graphs.
Owner:TIANJIN UNIV
Nuclear power plant spare part demand prediction method and device based on Bayesian reasoning
The invention particularly relates to a nuclear power plant spare part demand prediction method and device based on Bayesian reasoning, and belongs to the technical field of spare part management. The method comprises the following steps: collecting nuclear power plant spare part demand original data; preprocessing the nuclear power plant spare part demand original data to obtain nuclear power plant spare part demand data; constructing a Bayesian reasoning model; calculating the spare part demand rate in the spare part prediction period by using a Bayesian inference model; and according to the spare part demand rate in the spare part prediction period, optimizing the inventory ordering quantity and the inventory ordering cost in the spare part prediction period. The device is used for implementing the steps of the method. The accuracy of nuclear power plant spare part demand prediction is improved, a basis is provided for decision making of production or purchase plans, and therefore the efficiency and accuracy of nuclear power plant spare part inventory management are improved.
Owner:CNNC NUCLEAR POWER OPERATION MANAGEMENT CO LTD
A method for evaluating the availability of naval equipment
ActiveCN107944669BAccurate assessmentReduce mistakesResourcesIndustrial engineeringReliability engineering
The invention discloses a method for assessing the availability of naval equipment, which includes obtaining the demand rate of equipment maintenance site components at any time; calculating the number of site components under repair according to the component demand rate of the site; and calculating the site components according to the component demand rate of the site The in-transit quantity of parts; according to the parts demand rate of the site, calculate the number of maintenance guarantee delays and transportation guarantee delays of the parts at the site; obtain the supply mean and variance of the parts at the site; calculate the Obtain the expected shortage of parts; calculate the availability of parts based on the expected shortage and variance of parts, combined with the mean and variance of parts supply; and calculate the availability of equipment. The method of the technical solution of the present invention has accurate model algorithm and fast calculation speed, is suitable for establishing a time-varying availability model of equipment at any level, has small errors when the availability is low and the repair probability is high, and has a wide range of applicability.
Owner:NAVAL UNIV OF ENG PLA
Power system production simulation method and system considering the peak shaving characteristics of coal-fired units
ActiveCN119765337BData processing applicationsSingle network parallel feeding arrangementsElectric power systemProcess engineering
The present invention provides a power system production simulation method and system considering the peak shaving characteristics of coal-fired units. The implementation scheme is as follows: when a peak shaving unit is put into operation each time, according to the probability of power shortage of the system in the previous operation, the demand rate and non-demand rate for the transfer between the respective output states of the coal-fired unit put into operation this time are determined for the system. Thus, and by using the output loads of the respective output states of the coal-fired unit put into operation this time, the demand rate and non-demand rate for the transfer between the corresponding states are respectively corrected to obtain the transfer rate for the transfer between the respective output states of the coal-fired unit put into operation this time. Furthermore, the steady-state probabilities of the respective output states of the coal-fired unit put into operation this time are accurately determined. Also, based on this accurate steady-state probability, the output model of the coal-fired unit put into operation this time and the output model of the system in this operation can be accurately determined. Thus, the reliability index of the system after the peak shaving unit put into operation this time is accurately obtained.
Owner:STATE GRID ECONOMIC TECH RES INST CO LTD
Method for predicting accessory demand quantity based on consumption history
InactiveCN109801016AThere will be no backlogThere will be no problem of service failureLogisticsMarketingProduct demandIndustrial engineering
The invention discloses a method for predicting accessory demand quantity based on consumption history. The method comprises the following steps: 1, carrying out heat treatment; calculating similar accessory necessity, obtaining a new product demand quantity in the first period, according to demanded quantity of new products and similar accessory necessity rate, calculating the accessory demand quantity of the first period; selling a new product on the market; counting the accessory sales performance and the new product sales performance of each period; calculating the accumulative sales performance of the accessories and the accumulative sales performance of the new products; and calculating an actual accessory demand rate according to the accessory accumulative sales actual performance and the new product accumulative sales actual performance, obtaining the product demand quantity of the next period of each period, and calculating the accessory demand quantity of the next period according to the actual accessory demand rate and the product demand quantity of the next period of each period. After new products enter the market, the demand quantity of the market for maintenance accessories in all periods can be accurately predicted, and the output accessories are not prone to excess stock or overstocking.
Owner:雅马哈发动机(厦门)信息系统有限公司
Variable-propeller demand rate correcting method and device as well as wind generating set
ActiveCN112412697AImproved pitch execution accuracyEliminate execution static differenceWind motor controlEngine fuctionsControl engineeringPropeller
The embodiment of the invention discloses a variable-propeller demand rate correcting method and device as well as a wind generating set. The variable-propeller demand rate correcting method comprisesthe following steps: determining an initial variable-propeller demand rate of the wind generating set at a current moment; determining a variable-propeller demand correcting rate corresponding to thepropeller at the current moment by a proportional integer controller; determining a target variable-propeller demand rate of the propeller at the current moment according to the initial variable-propeller demand rate and the variable-propeller demand correcting rate; sending the target variable-propeller demand rate into a variable-propeller performing mechanism for making the variable-propellerperforming mechanism to perform propeller varying according to the target variable-propeller demand rate. According to the variable-propeller demand rate correcting method and device as well as the wind generating set provided by the embodiment of the invention, the variable-propeller demand rate is corrected by the proportional integer controller, so that performing static errors can be eliminated, and variable-propeller performing precision of the variable-propeller performing mechanism is improved.
Owner:XINJIANG GOLDWIND SCI & TECH
Automatic demand parameter escalation
Owner:ORACLE INT CORP
A PDCH channel configuration method and device
ActiveCN103974263BSolve problems that cannot reflect user perceptionEfficient configurationNetwork planningCurrent channelTelecommunications
Owner:CHINA MOBILE GROUP ZHEJIANG