Patent application number | Description | Published |
20100135301 | MOBILITY IN IP WITHOUT MOBILE IP - Not Mobile IP (NMIP) comprises methods for implementing macro-mobility in an IP network, wherein macro-mobility means the ability of a node to change its network-layer, e.g., IP, address without disturbing existing transport-layer and application-layer sessions, e.g., conversations. When two NMIP nodes establish a new NMIP session, they exchange pseudo-random numbers, or nonces, and store the nonces in a session table. When a first node changes its IP address, the first node sends to the second node an address-update message that contains the new IP address and the first node's nonce. If the received nonce matches a nonce in the session table, then the second node updates its protocol control blocks with the new IP address, and sends an address-update reply message to the first node. Internet Protocol Security (IPsec) can be used to secure or replace the exchange of nonces. | 06-03-2010 |
20120134346 | WIRELESS COMMUNICATION SYSTEM NETWORK EQUIPMENT WITH BROADCAST-BASED BACKHAUL NETWORK INTERFACE AND NEXT GENERATION AIR INTERFACE - Network equipment of a wireless communication system comprises a backhaul interface for communicating with a broadcast-based backhaul network and an air interface for communicating with a plurality of mobiles. The network equipment is configured to serve as a proxy on the broadcast-based backhaul network for at least a given one of the mobiles that communicates with the network equipment over the air interface, by determining an IP address for the given mobile and sending a broadcast message over the broadcast-based backhaul network advertising itself as the proxy in association with the IP address. The network equipment may comprise at least a portion of a base station of the wireless communication system. The broadcast-based backhaul network may comprise a local area network that operates in accordance with an Ethernet protocol, and the air interface may comprise an LTE air interface or a WiMAX air interface. | 05-31-2012 |
20120137117 | SYSTEM AND METHOD FOR PROVIDING SECURE VIRTUAL MACHINES - The present invention provides improved security in a virtual machine. By extending the capabilities of modern secure processors, privacy of computation is provided from both the owner of the equipment and other users executing on the processor, which is an advantageous feature for rentable, secure computers. In addition to the hardware extensions required to secure a virtualizable computer, an infrastructure for the deployment of such processors is also provided. Furthermore, a signaling flow to establish the various relationships between the owner, user and manufacturer of the equipment is disclosed. | 05-31-2012 |
20130183991 | METHOD AND BASE STATION SYSTEM FOR PROVIDING ACCESS TO A MOBILE COMMUNICATION NETWORK - The invention pertains to a method for providing access to a mobile communication network comprising at least one base transceiver station, wherein the communication network is being visited by a piece of user equipment having a home operator in a home network. The method comprises at the base transceiver station: receiving a channel request from said user equipment, creating a virtual machine associated with said home operator of said user equipment, establishing a channel using said virtual machine, and allocating channel resources of said at least one base station to accommodate said channel. The invention also pertains to a base station system to carry out the method of the invention. | 07-18-2013 |
20130188651 | MOBILITY IN IP WITHOUT MOBILE IP - Not Mobile IP (NMIP) comprises methods for implementing macro-mobility in an IP network, wherein macro-mobility means the ability of an endpoint node to change its network-layer, e.g., IP, address without disturbing existing transport-layer and application-layer sessions, e.g., conversations. When two NMIP endpoint nodes establish a new NMIP session, they exchange pseudo-random numbers, or nonces, and store the nonces in a session table. When a first endpoint node changes its IP address, the first endpoint node sends to the second endpoint node an address-update message that contains the new IP address and the first endpoint node's nonce. If the received nonce matches a nonce in the session table, then the second endpoint node updates its protocol control blocks with the new IP address, and sends an address-update reply message to the first endpoint node. Internet Protocol Security (IPsec) can be used to secure or replace the exchange of nonces. | 07-25-2013 |
20140089471 | METHOD AND APPARATUS FOR MITIGATING BUFFERING DELAY AT A NETWORK EDGE - A method for mitigating buffering delay in a TCP-encapsulated data stream transmitted over a network includes, at a node in the network, receiving a first packet through a first interface. The first packet includes data of the TCP-encapsulated data stream. A second packet is received through a second interface. The second packet includes an acknowledgment of segments of the TCP-encapsulated data stream. The method further includes analyzing the first packet and the second packet to estimate an amount of outstanding data, using the amount of outstanding data to determine a state of buffer occupancy, updating a TCP Window field in the second packet in function of the state of buffer occupancy, and transmitting the updated second packet through the first interface. | 03-27-2014 |
20140317261 | DEFINING INTERDEPENDENT VIRTUALIZED NETWORK FUNCTIONS FOR SERVICE LEVEL ORCHESTRATION - In one embodiment, a method comprises identifying, by an orchestrator executed by a physical machine, a plurality of virtualized network functions required for implementation of a virtualized network service for a customer, each virtualized network function having a corresponding and distinct virtualized container specifying attributes for defining execution of the corresponding virtualized network function within one or more physical machines; and setting by the orchestrator an interdependency indicator within each virtualized container based on association with the virtualized network service, enabling identification of each of the virtualized network functions as interdependent for coordinated execution of the virtualized network service. | 10-23-2014 |
20150281173 | DYNAMIC SERVICE CHAIN WITH NETWORK ADDRESS TRANSLATION DETECTION - In one embodiment, a method includes receiving a packet associated with a flow at a network device, classifying the packet at the network device based on information received from a policy layer, inserting a Network Address Translation (NAT) indicator for the flow into the packet, and transmitting the packet in a service chain comprising network address translation. The NAT indicator is associated with the flows before and after network address translation to provide symmetry between the service chain and a return traffic service chain. An apparatus and logic are also disclosed herein. | 10-01-2015 |