552results about How to "Avoid congestion" patented technology

The invention discloses an intelligent parking induction system and a method. The intelligent parking induction system comprises an information collection system, a communication network, a central control system, an Internet and a user terminal, wherein the information collection system is connected with the central control system by the communication network, and the central control system is connected with the user terminal by the Internet. By adopting the technical scheme disclosed by the invention, the use rate of a parking lot can be greatly enhanced, the traffic jam of a city is reduced, the wastage of parking resources is avoided, and the management cost is lowered; and moreover, the satisfaction degree of a user can be enhanced, and a positive action is provided for improving the traffic condition of the city and the service level of a parking lot industry.

The present invention provides an on-vehicle communication device capable of suppressing a delay in providing information, avoiding congestion, and sufficiently securing transmission power. An on-vehicle communication device (100) according to the present invention includes communication control means (3) that controls a transmission cycle and transmission power when data is transmitted from transmitting/receiving means (2). The communication control means (3) uses own vehicle information and surrounding vehicle information to estimate a degree of risk (R) and a safe distance (Ds) of own vehicle. The communication control means (3) controls the transmission cycle of own vehicle based on a communication channel utilization rate of own vehicle, a communication channel utilization rate of a surrounding vehicle and the degree of risk (R) of own vehicle. The communication control means (3) controls the transmission power of own vehicle based on the communication channel utilization rate of own vehicle, the communication channel utilization rate of the surrounding vehicle and the safe distance (Ds).

The invention relates to a mechanism for performing multicast transmission in a cellular network. In order to enable establishment of resources only in cells containing members of the multicast group and to avoid congestion on the uplink channel, a multicast service notification is transmitted to mobile stations, thereby informing members of the multicast group of an upcoming multicast session. The moment for a response to said multicast service notification is selected in the mobile stations and a presence report is sent from at least one of said mobile stations at the response moment of said at least one mobile station. The presence report or reports are received within a radio access network, and radio resources are established for multicast transmission in a cell of the cellular network when the presence report(s) received in said cell meet(s) predetermined criteria.

The invention relates to a shifting video code rate regulation method based on experience qualitative forecast. According to the invention, a sending end divides an encoding video speed rate into four grades, when a mobile terminal user requires a video business, the scale of the initial code rate of a video is middle, and thus, a QoE prediction model is periodically utilized to calculate a user taste value; the predicted QoE value and the presupposed QoE threshold value are compared, if the user experience quality is lower than the threshold value, and the corresponding adjustment is performed according to the network congestion indication and encoding video speed rate fedback by a receiving end in two periods; and the code rate grade of the next period is output until the request is finished, wherein the QoE prediction model is positioned on a video server side, and the decision tree structure is improved through training a plurality of gradients. The shifting video code rate regulation method provided by the invention can be used for solving a problem that in the current code rate regulation method, the video quality subjective feeling of users can not be considered, a network resource is fully utilized, meanwhile, the generation of network congestion is avoided or slacked, and the taste quality of the users is effectively improved.

Loads for a wireless network having a plurality of end nodes are predicted by constructing a computer data set of end-to-end pairs of the end nodes included in the network using a computer model of the network; constructing a computerized set of observables from social information about users of the network; developing a computerized learned model of predicted traffic using at least the data set and the observables; and using the computerized learned model to predict future end-to-end network traffic.

A navigation system, traffic prediction method, and traffic prediction program search for a plurality of routes to a destination. The system, method, and program calculate, if any of the plurality of routes passes through a predetermined area, a predicted time at which a link within the predetermined area will be passed through. The system, method, and program generate predicted traffic information for the link at the predicted time at which the link will be passed through based on the stored traffic information.

A method and an apparatus are disclosed for applying frequency layer convergence (FLC) to connected mode user equipments (UE) having no dedicated channel for a multimedia broadcast/multicast service (MBMS) service in a mobile communication system employing a Code Division Multiple Access (CDMA) scheme. The method and apparatus prevent uplink signaling congestion which may occur when the UEs located in non preferred frequency layers (NPL) of the MBMS service move to a preferred frequency layers (PL) when a MBMS service session starts. If the MBMS service session starts in a situation of applying the FLC, a radio network controller (RNC) notifies the UEs desiring to receive the MBMS service and located in NPLs for the MBMS service of FLC information including a PF value and a timer value, with reference to the number of the NPL UEs joining the MBMS service. The UEs performs a PF test according to the PF and timer values, thereby maintaining the degree of congestion and signal transmission load at appropriate levels.

In a method and a device, and a mobile communication system by which a connection switchover between wireless network control devices can be performed with a connected base station being maintained in order to avoid a congestion when the congestion occurs in one of the wireless network control devices within a mobile communication network, network management information indicating congestion states of all wireless network control devices is acquired from a core network within the mobile communication network, a wireless network control device list is prepared in which a higher priority is assigned to the wireless network control devices in ascending order of congestion degree based on the network management information when a call request is received from one mobile terminal through a base station, the wireless network control device list is notified to the mobile terminal through the base station, and the mobile terminal is enabled to select one of the wireless network control devices as a connecting destination.

The invention discloses a method and a system for notifying an MTC device of a random access back-off time, which notifies an ME to access a network using a random access back-off time different from that of an ordinary UE. The method includes: allocating one or more dedicated random access preambles for machine type communication equipment (ME) in advance; during the random access process, when the base station is overloaded, the random access response media access sent by the base station to the terminal The inbound packet data unit (MAC PDU) carries a dedicated random access response corresponding to the dedicated random access preamble, and the dedicated random access response includes ME-specific random access back-off time information; when the ME receives After receiving the dedicated random access response, read the random access back-off time information therein. By adopting the method of the present invention, different random access back-off times can be fed back for ordinary terminals and MTC equipment, and network congestion caused by MTC equipment during random access can be avoided.

The invention refers to a preparation method of ginseng polysaccharide. The method includes the following step: extract it from the ginseng or the marc of the ginseng decocted, filtrate, concentrate and deposit the extracting solution, get the precipitate after centrifugence and dry it with low temperature to get the crude product of ginseng polysaccharide. We get the polysaccharide product after the ginseng polysaccharide goes through the boiling, depositing, filtration, trash extraction, frost thawing, getting rid of the protein and getting the supernatant and the supernatant passes through the concentration with low pressure and drying with low temperature. We can make it into all kinds of forms of prepared drugs after the ginseng polysaccharide passes through the experiments in pharmaceutics. The invention effectively increases the quality of the ginseng polysaccharide injection, fully exerts the immunoloregulation function of the ginseng polysaccharide, increases the anti tumor effect of chemotherapy medicament and is used to reduce the side effect caused by the knubbly radiotherapy and chemotherapy as well as adjuvant for curing the tumor.

The invention discloses a routing agent-based media sensing automatic retransmission request (ARQ) control method and a routing agent-based media sensing ARQ control system, which are used for solving the technical problem that the characteristics of H.264/MPEG-4 video coding cannot be well combined and quality of service (QoS) assurance cannot be provided for network video transmission in the conventional ARQ control method for a wired-wireless heterogeneous network. In the method and the system, the characteristics of a video data packet are combined, the original ARQ advantages of a medium access control (MAC) layer are utilized, only the I frame of data is retransmitted, and unimportant video packets are preferentially discarded when a link is congested, thereby providing higher quality of service assurance; and simultaneously, a timeout early detection mechanism is introduced, and the video packets exceeding a video decoding delay threshold are discarded early to prevent invalid packet transmission from occupying valuable network resources and avoid the occurrence of congestion.

The invention discloses a multi-functional toll collection lane controlling and managing system of toll roads. An industrial personal computer, a car controlled machine, an IC (integrated circuit) card reader, a toll special keyboard and a display screen at an entrance lane direction are arranged in a toll booth; an entrance lane IC card automatic card sender and an entrance lane full-automatic toll data wireless emitter/receiver are arranged at the right side of the toll booth; the industrial personal computer, the car controlled machine, the IC card reader, the toll special keyboard and the display screen at an exit lane direction are arranged in the toll booth; and an exit lane full-automatic toll data wireless emitter/receiver is arranged at the left side of the toll booth. The system of the invention can organically combine three functions of manual toll lane, ETC (electronic toll collection) lane and automatic card sending and reading lane, so that various of vehicles can pass through the entrance and exit lanes of the toll station in a short time; and the system can disperse the vehicles on the square to a maximum extent without building new lanes. The system is safe and quick. In addition, the system can accelerate vehicle traffic capacity and reduce labor intensity of the toll staff.

The invention provides a parking reservation system and method based on parking space self-control. The parking reservation system comprises a cloud data engine unit, a cloud operation and maintenance management unit, a front-end parking space self-control unit, a front-end user service unit, a transaction settlement unit and a data exchange unit, wherein the cloud data engine unit is used for processing and storing parking space information through a real-time big data processing engine, the cloud operation and maintenance management unit is used for achieving parking operation and maintenance management, the front-end parking space self-control unit is used for achieving vehicle localization, entry and exit detection and automatic entry and exit management, the front-end user service unit is used by a user for inquiring a parking lot and/or a parking space and making a parking reservation application and is also used for achieving route navigation, indoor localization and parking space navigation, and the transaction settlement unit is used for generating a parking order and making payment and settlement. The parking reservation system and method have the advantages that the one-stop scheme of parking reservation, parking space navigation, parking space self-control and online payment is realized, the parking experience of the user is greatly improved, operation and maintenance management of all parking lots and parking spaces is achieved, the number of charge management personnel is reduced, and the management and operation cost is reduced.

Some embodiments provide a forwarding element that inspects the size of each of several packets in a data flow to determine whether the data flow is an elephant flow. The forwarding element inspects the size because, in order for the packet to be of a certain size, the data flow had to already have gone through a slow start in which smaller packets are transferred and by definition be an elephant flow. When the forwarding element receives a packet in a data flow, the forwarding element identifies the size of the packet. The forwarding element then determines if the size of the packet is greater than a threshold size. If the size is greater, the forwarding element specifies that the packet's data flow is an elephant flow.

A vehicle communication device for using a plurality of applications in an inter-vehicle communication, and performing a control to avoid congestion of its own vehicle and other vehicles. The vehicle communication device includes a plurality of application units performing the inter-vehicle communication, a lower protocol unit transmitting and receiving data between vehicles, and a middleware unit intervening between the application units and the lower protocol unit. The middleware unit includes a transfer service processing unit, a communication control service unit, and a transmission/reception control processing unit. The communication control service unit controls a congestion avoiding process of its own vehicle and other vehicles based on application priority received for each of the application units, priority for each vehicle, and channel usage rate obtained from the lower protocol unit.

The invention relates to a vehicle navigation method which can automatically correct navigation path, especially a traffic control method for transmitting navigation instruction to the vehicle with planet positioning and communicating devices, wherein said method comprises: the navigation terminal of vehicle receives and stores the navigation path data of group ground mark sequence provided by the navigation center; when driving, the navigation terminal, based on present ground mark, judges if the driving direction is normal and the bias amount with present navigation road, and if said vehicle is deflected from present navigation path, sends vehicle recognize code and present position to the navigation center; the navigation center based on electric map calculates out the navigation path data of one group of ground mark sequence to be sent to the navigation terminal; and the navigation terminal via the navigation path data plays the instruction voice of present target ground mark and plays navigation instruction information; when the vehicle reaches target ground mark, the navigation terminal based on navigation path refreshes present target ground mark.

The invention provides a data channel selection method and a data processing platform. The data channel selection method comprises the steps that the data processing platform obtains channel selection data which comprise at least one of user historical behavior data, stable capacity of the channel, maximum capacity of the channel, active operational data and channel robustness data; according to the obtained channel selection data, a selection rule corresponding to the channel selection data is used for selecting the data channel, and the selection rule comprises at least one of a user behavior rule, a channel stable capacity rule, a channel maximum capacity rule, an active operational rule and a channel robustness rule; the selected data channel is displayed. By means of the data channel selection method and the data processing platform, the effects of reasonably selecting the data channel and using the data channel in a balanced mode are achieved.

A management system accepts a connection request from a client computer to a server computer, acquires connection settings information, calculates a network bandwidth required for processing for connection from the client computer to the server computer, stores the connection request into a connection request processing queue, determines whether the processing for the connection from the client computer to the server computer can be performed or not, and notifies the client computer of a server identification number. The client computer issues a connection request to the server computer based on the received server identification number, and starts communication therewith. In spite of concentration of connection requests from a large number of client computers to server computers, the connection requests can be processed while controlling the communication data volume generated in a network at a point where the server computers are aggregated, so as to avoid occurrence of congestion.

The invention discloses a highway toll collection system and connection signal intersection coordinated control system comprising a traffic state detection device, a ramp queuing length detection device, an exit toll station release control device, an entrance toll station release control device, a plane signal intersection control device, a road exit and entrance traffic flow induction device anda coordination controller. The traffic flow is regulated and controlled through the toll stations, the release rate of the exit and entrance toll station is regulated and controlled in real time according to the traffic state and the vehicle queuing length of the highway main lines, the exit and entrance ramps and the urban road of the area near the toll stations, and the signal timing plane forcoordinately controlling the connection signal intersection is also used in a cooperation way; besides, the traffic induction system is also used in an auxiliary way so that the vehicle is enabled tosmoothly enter or leave the highway, the problem of traffic congestion of the highway main lines, the exit and entrance ramps and the connection road segments of the toll stations and the signal intersection can be solved and the overall operation efficiency of the highway and urban road network is enabled to be optimal.

A digital voice transmission system based on LAN comprises multiple terminal equipment (202-1, 202-2, to 202-n) and central control equipment (201) characterized in that multiple terminal equipment (202-1, 202-2, to 202-n) are serially connected and the central control equipment (201) is connected with a terminal equipment (202-1) of most significant end in the serially connected equipments; audio frequency signal from each terminal equipment are serially transmitted uplink to the central control equipment and audio frequency signal from the central control equipment are serially transmitted downlink to at least one of the multiple terminal equipment.

A communication system having a source node, at least one mobile node, and a router that transmits data packets transmitted from the source node to a corresponding one of the at least one mobile node and multiplexes response signals to the data packets received from the corresponding one of the at least one mobile node to transmit the multiplexed response signals to the source node. The communication system includes: a link monitoring unit which calculates a capacity of a wireless link between the router and the corresponding one of the at least one mobile node; and a congestion control and adjustment unit which adjusts window field values in the response signals according to the calculated capacity. The router transmits the response signals, the response signals including the adjusted window field values to the source node, and the source node sequentially transmits the data packets on the basis of the adjusted window field values.

Resources of a shared physical network element of a communications network are dynamically allocated between connection-oriented traffic and connectionless traffic. For each shared physical network element of the network, a resource requirement of the connection-oriented traffic is determined; and a respective traffic metric to be used for routing connectionless traffic is dynamically adjusted based on the determined resource requirement of the connection-oriented traffic. As a result, resources of the shared physical network element can be efficiently utilized, and congestion of connectionless traffic being routed through the shared physical network element is avoided.

The embodiment of the invention provides a method, a device and a system for regulating data traffic. The method comprises the following steps: firstly, receiving bandwidth instruction information used for instructing the transmission bandwidth of a data receiver; then acquiring the transmission bandwidth of the data receiver according to the bandwidth instruction information; and then regulating the data traffic sent to the data receiver according to the acquired transmission bandwidth. Following the steps, the received data traffic can be regulated adaptively according to the change of the data receiver, that is the communication equipment transmission bandwidth, thereby not only the congestion of the internal flow in the communication equipment is avoided and the stability of the service transmission is guaranteed, but also adverse effect brought to the high priority service transmission is avoided and the transmission performance of a system is enhanced.

The invention relates to a system, device and method for handling a configuration request. The system comprises a plurality of auto-configuration servers and an auto-configuration server management device communicatively coupled to the plurality of auto-configuration servers. The auto-configuration server management device is arranged for communication over the network with a manageable electronic device, and is arranged for receiving the configuration request from the manageable electronic device. One or more auto-configuration servers that can handle the configuration request are identified based on the identification of the manageable electronic device. The load of the one or more identified auto-configuration servers is analyzed, and based on the load analysis, an auto-configuration server is selected as destination address for the configuration request. The invention improves the configuration of customer premises devices.

Systems and methods for improved received network traffic distribution in a multi-core computing device are presented. A hardware classification engine of the computing device receives a data packet comprising a portion of a received network traffic data flow. Packet information from the data packet is identified. Based in part on the packet information, the classification engine determines whether a core of a multi-core processor subsystem is assigned to the data flow of which the packet is a part. In embodiments, this determination may be made based on one or more criteria, such as a work load of the core(s) of the processor subsystem, a priority level of the data flow, etc. Responsive to the determination that a core is not assigned to the data flow, a core of the multi-core processor is assigned to the data flow and the data packet is sent to the first core for processing.

The invention discloses a control strategy adjustment method and system. The method comprises network service control equipment acquiring the current network state information; and the network service control equipment initializing a control strategy adjustment request to a CDN (content delivery network) service node according to the acquired current network state information, wherein the control strategy adjustment request is used for requesting the CDN service node to adjust the data traffic issued to users. According to the technical scheme, the control strategy adjustment method can prevent over-high acceleration rate of a single user, thereby preventing overuse of the network resources as well as the influences on the network stability and usability, and flexibly adjusting the data traffic issued to the user. The method provided by the invention can also flexibly adjust the user traffic under the network port when congestion possibly occurs at the network port so as to obviate network congestion.

The invention discloses a real-time route planning method. The method comprises the following steps: defining route cost according to the route condition in a route net, generating pheromone according to the route where vehicles are positioned, reporting the pheromone to a server, calling the ant colony algorithm, calculating the concentration of the pheromone of the route at the next moment according to the pheromones of all vehicles, and finally selecting the next route for the vehicle by the server according to the traffic flow information of all routes, so as to avoid congestion, realize accurate prediction of the traffic flow condition, keep away from road congestion, ensure the traffic flow maximization of the optimal route, prevent wide fluctuation of the road condition wholly, and generate a reasonable optimized route, wherein the concentration of the pheromone is traffic flow estimated parameter; and besides, compared with the traditional route planning method, the real-time route planning method has the technical effects of simplicity, flexibility and difficulty in falling into local solution.

The mthod is as the follows: resource related to the MBMS serice in RNC is released and service context kept for the MBMS service is deleted when note that certain MBMS service is ended is informed by up level network to RNC; command of service ending is sent to UE by RNC; resource related to the MBMS is released by UE locally to stop receiving channel of relating MBMS service and to delete service context kept for the MBMS service when MBMS service ending command is received by UE from RNC.

A transmitter device 20, in transmitting a predetermined number of data blocks out of a plurality of data blocks to a receiver device 10 via a relay device 40, divides and writes into data blocks transmitted in succession, a request code for requesting relay device 40 to relay remaining data blocks. Relay device 40, in the case of accepting the request shown in the request code that is divided and written in the data blocks transmitted from transmitter device 20, notifies the acceptance of the request to transmitter device 20. Transmitter device 20, upon receiving the notification, then transmits the remaining data blocks in succession to relay device 40.

The invention provides a method for processing a discontinuous reception period in machine-type communication and network-side equipment in order to solve the problem that network congestion is easily caused by the improvement of the discontinuous reception period at present. The method for processing the discontinuous reception period in the machine-type communication comprises the following steps that the network load condition of the machine-type communication is acquired by the network-side equipment; the discontinuous reception period of a terminal is adjusted by the network-side equipment according to the network load condition of the machine-type communication; a paging message is sent to the terminal by the network-side equipment through a base station, and the adjusted discontinuous reception period is carried in the paging message so that data is reported by the terminal according to the adjusted discontinuous reception period. As the discontinuous reception period of the terminal is adjusted according to the network load condition, the data can be reported by the terminal according to the adjusted discontinuous reception period. The phenomenon that multiple terminals report data at the same time is avoided, thus solving the network congestion problem.