141results about How to "Avoid network congestion" patented technology

One embodiment of the present invention provides a system that avoids network congestion. During operation, the system can detect an onset of congestion in a first queue at a first node. Next, the first node can generate a first control-message, wherein the first control-message contains a congestion-point identifier which is associated with the first queue. The first node can then send the first control-message to a second node, which can cause the second node to delay sending a second message to the first node, wherein the second message is expected to be routed through the first queue at the first node. Next, the second node may propagate the control-message to a third node which may cause the third node to delay sending a third message to the second node, wherein the third message is expected to be routed through the first queue at the first node.

The present invention discloses a method and node for acquiring content and a content network, and is related to the field of communications. The method includes: receiving a content request, where the content request at least includes an identifier of requested content; determining whether the content corresponding to the identifier can be acquired locally; if yes, acquired the content corresponding to the identifier locally; otherwise, searching, according to the identifier, a name resolution system for a target node that stores the identifier, and acquiring the content corresponding to the identifier from the target node; where the name resolution system comprises a multilevel DHT and a global content resolution structure, and the global content resolution structure supports name aggregation and longest matching search.

A network system and a method of address resolution are provided. The network system includes a network, a plurality of virtual machines, a routing module and a path directory module. Each virtual machine includes an internet protocol (IP) address and N media access control (MAC) addresses, so as to connect the network through N transmission routes. The routing module detects and calculates states of the transmission routes. The path directory module receives and decodes an address resolution protocol (ARP) request presented by at least one source virtual machine to reply path information, which includes N MAC addresses corresponding to an IP address of a destination virtual machine and states of the N transmission routes. Thus, the virtual machines present the ARP request without broadcast, so that the problem of network congestion is solved.

The present invention relates to the field of mobile communications and in particular to messaging methods and systems using mobile communications terminals. In particular, but not exclusively, the invention relates to email messaging and in accordance with the invention there is established a connection between at least one mobile communication terminal and a server for a specific period of time which allows messages to be communicated to the terminal. The duration of the connection is typically such as to allow more than one message to be received in any specific time period. The connection time periods are interspersed with periods of non connection and the duration and frequency of said connection time periods may be controlled with respect user selected modes of operation and/or an operating parameter of the mobile communication terminal.

A repeater and method provides a technique to minimize congestion and packet loss, which may be generated when a fault is detected in a ring type packet network or when the network recovers from such a fault. A repeater having a plurality of ports for transmitting and receiving packets in a ring type network for transmitting the received packets on the basis of an address included in a received packet and a transmitting port database indicating an identifier of a port to transmit the packet having the address as the destination, comprises a control packet processing block to detect reception of a fault notifying packet transmitted from a repeater having detected a fault and a control block to update, upon reception of the fault notifying packet from an immediately adjacent repeater, a port identifier of the transmitting port database having a port identifier of the port having received said fault notifying packet into a port identifier of a port connected to another immediately adjacent repeater.

A method of optimizing packetization for a sending device of a Voice over Internet Protocol network includes encoding an audio signal, and monitoring a state of the Voice over Internet Protocol network. An optimal count of compressed data frames is determined from the state of the Voice over Internet Protocol network. The optimal count is employed to packetize the encoded audio signal in a payload. The payload is sent in a voice packet to the Voice over Internet Protocol network.

A system for capturing, encoding and transmitting continuous video from a camera to a display monitor via a network includes a user friendly interface wherein a map is provided at a display screen for illustrating the location of the cameras and indicating the direction of the camera angle. The monitor includes a display area for selectively displaying selected cameras and for controlling the selection, display and direction of the cameras from a remote location. The display screen can be configured to display one or any combination of cameras. The cameras can be selected by manual selection, pre-programmed sequencing or by event detection with the selected camera automatically displayed on the display area. Secondary monitors may be incorporated to enhance the display features. The secondary monitors are controlled by the control panel provided on the primary monitor.

The present invention discloses an service realization method for the fair user policy, mainly comprising the following steps: A, the user accesses an accessing server and goes to an AAA server to fulfill the accessing authority inspecting; B, the accessing server receives the grouping data service request of the user and matches the fee calculating rules and the policy information; if the match is successful, the step D comes up, otherwise the fee calculating rules and the policy requests are sent to PCRF; wherein, the fee calculating rules have relative relationships with the user type, the service type and the fee calculating policy, the policy information have relative relationships with the fee calculating policy, the policy cycle, the flux quota and the pointed speed; C, the PCRF server sends fee calculating rules and the policy response to the accessing server and issues the relative fee calculating rules and the policy information; D, the users process the transmission of the service data, access to the network and execute the policy information of the service and add up the data flow rate of the service. The present invention can effectively elevate the justification of the network resources used by the users.

A method implemented in a network apparatus used in a network is disclosed. The method comprises collecting information about network topology from a network controller, collecting information about data movement, deciding routing in the network according to the information about network topology and the information about data movement, and providing information about the routing to the network controller, wherein the network controller enforces the routing in the network. Other methods, apparatuses, and systems also are disclosed.

In a system and method for backward congestion notification (BcN) in a network, when it is determined in advance that congestion is imminent in the network, the system and method enable preventive reduction of packet transmission by transmitting a BcN message, requesting packet transmission reduction, to a network component transmitting packets, thereby preventing congestion and packet discard caused by network congestion.

The invention discloses a routing algorithm of guaranteeing QoS (quality of service) in a data center network based on SDN. Aiming at problems that user terminal transmission time delay is high and a link congestion is generated in the data center network, the routing algorithm of guaranteeing QoS in the data center network is provided. In the algorithm, priority classification is performed on a data flow arriving at a switch so that a high priority data flow which is sensitive to the time delay adopts a time delay guarantee algorithm; a path with minimum data plane time delay is found to carry out flow table issuing; for a low priority data flow which has a high requirement to a bandwidth, a bandwidth guarantee algorithm is adopted; and according to a demand of the data flow for the bandwidth, dynamic bandwidth adjusting is performed. The QoS of a user is effectively guaranteed and a resource utilization rate in the data center network is increased.

Systems and methods which provide network congestion avoidance implementing a fairness scheme in which a cost function is used are shown. Transmission cost, for use in network congestion avoidance packet dropping decisions, may be determined from an amount of air time needed to transmit a data packet, a transmission data rate, a size of a packet, an amount of spectral energy or transmit power associated with transmission, etc. A packet dropping probability for a particular packet is preferably determined as a function of the current flow cost and average flow cost to provide fair allocation of network communications resources. Embodiments additionally implement buffer based packet dropping probability calculation in order to provide a robust network congestion avoidance technique. Cost based packet dropping probability calculation and buffer based packet dropping probability calculation implemented according to embodiments are adapted to accommodate quality of service applications.

The invention provides a method for preparing a rubber-plastic compound. A composite device containing normal-temperature millstone-type elastomer fine crushing machineries is utilized to carry out crushing treatment on a mixture containing formulas of thermosetting elastomer and plastic or/and thermoplastic elastomer, and the mixture comprises the following components in weight ratio: thermosetting elastomer sieved by a sieve with the aperture of 5-40 meshes: plastic sieved by a sieve with the aperture of 1-5mm or/and thermoplastic elastomer sieved by a sieve with the aperture of 1-5 meshes:filler: other adjuvants = 40-90:60-10:0-200:0-10. The invention comprises a method, the composite device for implementing the method, and rubber-plastic compound products produced by the method, wherein a regeneration rubber-plastic compound is included. The invention not only can enable the absorb filler operation to become clean, continuous, normal-temperature and energy saving in the process of preparing new rubber-plastic composite material, but also can enable mixed waste plastic difficult to be reused by the prior art to be conveniently used for high-valued recycling.

Determining a predetermined number of paths from a source node to a destination node in a network with nodes interconnected by links having metric values. A path between the source node and a current node is determined and expanded using selected links connected to the current node. The expanded paths are evaluated based on a value for a selected metric to determine those expanded paths having desirable selected metric values. The expanded paths with desirable selected metric values are evaluated to determine the path having the highest available bandwidth for all distinct segments.

A system for transmitting data packets representing a source signal across a packet data network is provided. The encoder comprises a first encoder (110) and a redundancy encoder (120). The redundancy encoding is generated with a bit rate continuously scalable, the bit rate being provided by a bit rate controller (142) that uses input from the network (130) and packet-loss rate information. At the decoder, recovery is performed by a parameter estimator based in part on information transmitted from the first encoder using information from previous and/or future blocks and in addition on redundant information. The method may be added to existing lossy source coding systems or may be used to enhance the quality of the reconstructed source signal even in scenarios without packet loss.

A vehicle data gathering apparatus that implements a vehicle data gathering method includes: a bus use rate detection means connected to an in-vehicle network for detecting a bus use rate in the in-vehicle network; a selection setting means for selecting and setting a plurality of data request signals to be transmitted to at least one of a plurality of ECUs; a transmission interval setting means for setting a uniform transmission interval for each data request signal in a predetermined period on the basis of the number of the data request signals set by the selection setting means; and a request signal transmission means for transmitting each data request signal at the set uniform interval when it is determined that the bus use rate is lower than a first threshold value.