Abstract: A gateway system determines whether load conditions are heavy or light according to a predetermined criterion. If load conditions are light, the gateway operates in reactive mode. If load conditions are heavy, the gateway operates in proactive mode.

Abstract: Method and apparatus for efficient management and transport of traffic over a network. The available bandwidth capacity of paths in a network may be stored in a first router. A request may be received at the first router from a network node of a second network for a signaled path through the network to a destination node. Paths may be examined by the first router and the signaled path assigned to a path from the first router to the destination node using an existing path through the network. Further, all traffic from a subnet to a given destination network may be handled by one or more mobile agents at the subnet. One or more mobile agents may be assigned to all or some of the traffic based on current path loading.

Abstract: A gateway system determines whether load conditions are heavy or light according to a predetermined criterion. If load conditions are light, the gateway operates in reactive mode. If load conditions are heavy, the gateway operates in proactive mode.

Abstract: In a wireless mesh network of network nodes, there is identified a first subset of the nodes that have a direct connection to at least one end user, and a second subset of nodes that are necessary to maintain connections among the end users. The first subset is exclusive of the second subset. Nodes that are not within either the first subset or the second subset enter a power savings mode, which may include shutting down completely for a predetermined period. This enables power savings in that only the minimum number of nodes that are necessary to maintain connectivity of the end users may remain powered. A centralized node may make the decisions and inform individual nodes to shut down, or each node may run the same algorithm using the same input information and determine its own shutdown decision.

Abstract: Methods and systems are provided for delivering content from a website to a computer device. The website and computer device negotiate terms for use of a cache memory coupled to the computer device. The computer device requests content, such as web page objects, from the website. In addition to transmitting the requested content, the website transmits non-requested content to the computer device. The non-requested content is stored in the cache memory for later retrieval by the computer device.

Abstract: The present invention supports a protection path in a radio access network in order to continue communication between terminating nodes of the radio access network if a failure occurs with a communications path between the terminating nodes. A node may assume the functionality of a router, a base transceiver station, or a base station gateway. The establishment of the protection path utilizes the redundancy of connectivity in the radio access network when routing the protection path in accordance with a service protection model. The protection path may be configured with a service protection model that is based on a quality of service model or on a separate protection model. With a quality of service being associated with a traffic class, the service profile indicates the quality of service for different types of services for a user as well as the quality of service that is provided by the protection path if a failure occurs with the communications path.

Abstract: A novel approach is provided for avoiding the “slow-start restart” in TCP communications when network conditions dictate such. The disclosed approach serves to overcome the latency related to the “slow-start restart” by assessing network conditions and avoiding the “slow-start restart” when network conditions justify the avoidance. The disclosed methods, applications and devices implement the periodic communication of a probe packet that is generated and transmitted from a TCP sender to a TCP receiver during the period that the TCP network connection remains idle. Receipt of the probe packet by the TCP receiver will trigger transmission of an acknowledgment message by the TCP receiver. Upon receipt of the acknowledgement message the TCP sender will restart measurement of the idleness period and, as such the “slow-start restart” is avoided.

Abstract: In a wireless mesh network of network nodes, there is identified a first subset of the nodes that have a direct connection to at least one end user, and a second subset of nodes that are necessary to maintain connections among the end users. The first subset is exclusive of the second subset. Nodes that are not within either the first subset or the second subset enter a power savings mode, which may include shutting down completely for a predetermined period. This enables power savings in that only the minimum number of nodes that are necessary to maintain connectivity of the end users may remain powered. A centralized node may make the decisions and inform individual nodes to shut down, or each node may run the same algorithm using the same input information and determine its own shutdown decision.

Abstract: A method of placing nodes in an area that requires coverage, the method includes the step of creating a network topology such that the average path length is kept to a minimum number of hops at the time of placement of a new node, wherein a limit is placed on a number of neighbors at the time of placement of the new node, the number being a parameter that impacts the average path length, resiliency and capital investment. The new node is connected to at least one node in the network.

Abstract: Methods and systems are provided for delivering content from a website to a computer device. The website and computer device negotiate terms for use of a cache memory coupled to the computer device. The computer device requests content, such as web page objects, from the website. In addition to transmitting the requested content, the website transmits non-requested content to the computer device. The non-requested content is stored in the cache memory for later retrieval by the computer device.

Abstract: Methods and systems are provided for delivering content from a website to a computer device. The website and computer device negotiate terms for use of a cache memory coupled to the computer device. The computer device requests content, such as web page objects, from the website. In addition to transmitting the requested content, the website transmits non-requested content to the computer device. The non-requested content is stored in the cache memory for later retrieval by the computer device.

Abstract: Admission of new objects into a memory such as a web cache is selectively controlled. If an object is not in the cache, but has been requested a specified number of prior occasions (e.g., if the object has been requested at least once before), it is admitted into the cache regardless of size. If the object has not previously been requested the specified number of times, the object is admitted into the cache if the object satisfies a specified size criterion (e.g., if it is smaller than the average size of objects currently stored in the cache). To make room for new objects, other objects are evicted from the cache on, e.g., a Least Recently Used (LRU) basis. The invention could be implemented on existing web caches, on distributed web caches, in client-side web caching, and in contexts unrelated to web object caching.

Abstract: The present invention supports a protection path in a radio access network in order to continue communication between terminating nodes of the radio access network if a failure occurs with a communications path between the terminating nodes. A node may assume the functionality of a router, a base transceiver station, or a base station gateway. The establishment of the protection path utilizes the redundancy of connectivity in the radio access network when routing the protection path in accordance with a service protection model. The protection path may be configured with a service protection model that is based on a quality of service model or on a separate protection model. With a quality of service being associated with a traffic class, the service profile indicates the quality of service for different types of services for a user as well as the quality of service that is provided by the protection path if a failure occurs with the communications path.

Abstract: Method and apparatus for efficient management and transport of traffic over a network. The available bandwidth capacity of paths in a network may be stored in a first router. A request may be received at the first router from a network node of a second network for a signaled path through the network to a destination node. Paths may be examined by the first router and the signaled path assigned to a path from the first router to the destination node using an existing path through the network. Further, all traffic from a subnet to a given destination network may be handled by one or more mobile agents at the subnet. One or more mobile agents may be assigned to all or some of the traffic based on current path loading.

Abstract: The present invention supports a protection path in a radio access network in order to continue communication between terminating nodes of the radio access network if a failure occurs with a communications path between the terminating nodes. A node may assume the functionality of a router, a base transceiver station, or a base station gateway. The establishment of the protection path utilizes the redundancy of connectivity in the radio access network when routing the protection path in accordance with a service protection model. The protection path may be configured with a service protection model that is based on a quality of service model or on a separate protection model. With a quality of service being associated with a traffic class, the service profile indicates the quality of service for different types of services for a user as well as the quality of service that is provided by the protection path if a failure occurs with the communications path.

Abstract: A transport scheme is provided based on Internet protocol (IP) and multiprotocol label switching (MPLS) technology for third generation (3G) radio access networks (RAN). Label switched paths are established and managed for interconnecting base stations and radio network controllers. The process incorporates constraint-based routing and Diffserv to provide transport bearers that can support bandwidth provisioning and a variety of QoS requirements in the RAN.

Abstract: A novel approach is provided for avoiding the “slow-start restart” in TCP communications when network conditions dictate such. The disclosed approach serves to overcome the latency related to the “slow-start restart” by assessing network conditions and avoiding the “slow-start restart” when network conditions justify the avoidance. The disclosed methods, applications and devices implement the periodic communication of a probe packet that is generated and transmitted from a TCP sender to a TCP receiver during the period that the TCP network connection remains idle. Receipt of the probe packet by the TCP receiver will trigger transmission of an acknowledgment message by the TCP receiver. Upon receipt of the acknowledgement message the TCP sender will restart measurement of the idleness period and, as such the “slow-start restart” is avoided.

Abstract: A system and method are provided for requesting a resource over at least one network. The system includes a terminal, a host and a network proxy. The terminal can send a first request for the resource over a first network and a second network. In turn, the host can receive the first request and send a first response, where the first request identifies the resource at a first location on the host. The network proxy, which can communicate with the host over the second network independent of the first network, can receive the first response from the host, and reformulate the first request into a second request that identifies the resource at a second location. The network proxy can send the second request to a host of the resource at the second location such that the host of the resource at the second location can respond to the second request.

Abstract: Admission of new objects into a memory such as a web cache is selectively controlled. If an object is not in the cache, but has been requested a specified number of prior occasions, it is admitted into the cache regardless of size. If the object has not previously been requested the specified number of times, the object is admitted into the cache if the object satisfies a specified size criterion. To make room for new objects, other objects are evicted from the cache on, e.g., a Least Recently Used (LRU) basis. The invention could be implemented on existing web caches, on distributed web caches, in client-side web caching, and in contexts unrelated to web object caching.

Abstract: A network element is deployed in a network of interconnected elements. The network element includes a shared buffer multiplexer connected to a link, a set of regulators connected to the shared buffer mulitplexer, and an admission control unit communicatively coupled to the set of regulators and the shared buffer multiplexer. Each of the set of regulators has an input traffic flow. Each traffic flow has a varying flow rate. In order to control admission of the traffic flow to the link in the network element, the admission control unit evaluates the traffic flowing into each regulator. For each traffic flow, the admission control unit receives an envelope of the flow input to the regulator. The admission control unit maximizes the entropy of a distribution of the rate of flow over all time scales. The admission control unit determines the maximum-entropy distribution for the flow using information derived from the traffic envelope, including bounds of the mean rate, the minimum rate, and the maximum rate.