Patent application number | Description | Published |
20120072526 | METHOD AND NODE FOR DISTRIBUTING ELECTRONIC CONTENT IN A CONTENT DISTRIBUTION NETWORK - The present invention relates to a method and node for efficiently distributing electronic content in a content distribution network (CDN) comprising a plurality of cache nodes. | 03-22-2012 |
20120076052 | METHOD AND NODE FOR FINDING CONTENT IN A CONTENT DISTRIBUTION NETWORK, AND METHOD FOR CREATING A VIRTUAL REPRESENTATION OF A CONTENT DISTRIBUTION NETWORK - Embodiments of the present invention a method and a node for finding the shortest path to a cache node in a content delivery network (CDN) comprising requested content and a method for creating a virtual representation of a network. According to an embodiment of the present invention, the virtual representation is in the form of a virtual, hierarchical topology, and the cache nodes correspond to the cache nodes of the real network. All cache nodes are arranged at a first level and with the virtual nodes arranged at higher levels. In the virtual representation, all nodes (cache and virtual) are connected with virtual links such that there exist only one path between any two arbitrary cache nodes. Further, costs to the virtual links are assigned such that the path cost between any two arbitrary cache nodes in the virtual representation generally corresponds to the lowest path cost between corresponding cache nodes in the real network. | 03-29-2012 |
20120079056 | Network Cache Architecture - There is described a method and apparatus for sending data through one or more packet data networks. A stripped-down packet is sent from a packet sending node towards a cache node, the stripped down packet including in its payload a pointer to a payload data segment stored in a file at the cache node. When the stripped-down packet is received at the cache node, the pointer is used to identify the payload data segment from data stored at the cache node. The payload data segment is inserted into the stripped-down packet in place of the pointer so as to generate a full size packet, which is sent from the cache node towards a client. | 03-29-2012 |
20120084385 | Network Cache Architecture - There is described a method and apparatus for sending data through one or more packet data networks. A reduced size packet is sent from a packet sending node towards a cache node, the reduced size packet including in its payload a pointer to a payload data segment stored in a file at the cache node. When the reduced size packet is received at the cache node, the pointer is used to identify the payload data segment from data stored at the cache node. The payload data segment is inserted into the reduced size packet in place of the pointer so as to generate a full size packet, which is sent from the cache node towards a client. | 04-05-2012 |
20120102151 | DATA FLOW IN PEER-TO-PEER NETWORKS - There is described a client node for use in a network. The client node comprises a transmitter for requesting data from the network. A processor is operatively connected to the transmitter, and has installed thereon an operating system and an application. A receiver for receiving data from the network is operatively connected to the processor. The application is arranged to request content data from the network by opening a transport socket to the operating system. The operating system is arranged to establish contact with a master peer server in the network, receive a list of sources of the content data from the master peer server through such transport socket signalling, and establish contact with at least one source from the list of sources. The application is arranged to receive the content data from the at least one source without being aware that the content is delivered by at least one source from a list of sources. The list of sources may include nodes in a P2P network. | 04-26-2012 |
20120218970 | Caching in Mobile Networks - There is described a system and method of handing over a connection to a terminal from a source network element (e.g. base station) to a target network element (e.g. base station) in a packet data network when the source base station is acting as a caching server and sending content data towards the terminal in a session. A handover request is sent from the source base station to the target base station. A context data message (e.g. CXTP message) is sent from the source base station to the target base station, the context data message including session state parameters identifying the state of the session. At the target base station, the session state parameters are retrieved from the context data message and used to identify the state of the session. Content data packets are then sent from the target base station towards the terminal so as to continue the session. | 08-30-2012 |
20120290677 | Dynamic Cache Selection Method and System - Node, computer software and method for selecting a resource that is available at multiple caches connected in a communication network. The method includes receiving from a user a request for the resource; identifying one or more caches of the multiple caches that store the resource; determining a total cost associated with a path between the user and each cache of the one or more caches storing the resource, the total cost including a static cost C | 11-15-2012 |
20120300747 | CACHING IN MOBILE NETWORKS - A method and apparatus for handing over a terminal connection. A handover request is sent from a source base station to a target base station. A first control message is also sent from the source base station to a control server, the first control message including a session identifier for identifying the session, and current parameters for the session. If the target base station is associated with a cache storage unit containing the content data, a second control message is sent from the control server to the target base station, the second control message including a content identifier, the session identifier and the current parameters. At the target base station, the content data packets are retrieved from the cache storage unit, and a header of each retrieved content data packet is populated with parameters calculated using the received current parameters and session identifier. The content data packets are then sent from the base station towards the terminal. | 11-29-2012 |
20130073808 | METHOD AND NODE ENTITY FOR ENHANCING CONTENT DELIVERY NETWORK - The present invention provides a method and a caching node entity for ensuring at least a predetermined number of a content object to be kept stored in a network, comprising a plurality of cache nodes for storing copies of content objects. The present invention makes use of ranking states values, deletable or non-deletable, which when assigned to copies of content objects are indicating whether a copy is either deletable or non-deletable. At least one copy of each content object is assigned the value non-deletable. The value for a copy of a content object changing from deletable to non-deletable in one cache node of the network, said copy being a candidate for the value non-deletable, if a certain condition is fulfilled. | 03-21-2013 |