136 results about "Network mobility" patented technology

A method of routing data packet flows from a mobile router in a mobile network, which mobile network comprises one or more network node attached to said mobile router, said mobile router for providing transparency at the network layer for said one or more network node to movement of said mobile network relative to a fixed network infrastructure, which method comprises the steps of: (a) receiving a data packet from a first host within said mobile network addressed to a second host; (b) estimating which type of traffic is present in said data packet; and (c) forwarding said data packet by applying a first routing method for a first type of traffic and a second routing method for a second type of traffic.

Methods and apparatus for applying a single virtual private network (VPN) address to tunnels or connections associated with different access interfaces are disclosed. In one embodiment, a method includes establishing a first tunnel between a node and a VPN server. The first tunnel has a first address. The method also includes assigning a VPN address to the first tunnel, as well as establishing a second tunnel between the node and the VPN server. The second tunnel has a second address. The VPN address is assigned to the second tunnel, and VPN address is accessed by both the first address and the second address.

A method, device and system for allowing a mobile communication device, such as a DLNA/UPnP device, to continue to communicate with its local network, even when the mobile device leaves or loses contact with the local network. The method includes providing information to a remote access server to create a virtual mobile device in a local network. The virtual device communicates with other devices within the local network as if it is the actual mobile device. The remote access server is configured to route data packets between the virtual device and the mobile device via a second network that does not rely on the mobile nodes connection to the local network. A public IP address of the remote access server provided to the mobile device before the device leaves the local network is used to communicate with the virtual device via an IP-based public network coupled to the local network.

The invention discloses an information center network mobility management method based on content popularity and belongs to the technical field of next-generation internet technology research. The method includes the steps that, a requester side moves, specifically, the content requester sends an Interest package request, a router in a network receives the Interest message, the local cache is searched first, the Interest message is directly returned to the requester if the content exists in the local cache, and otherwise a PIT table is searched; a proxy node compares the popularity of the content with a popularity threshold value K; a content source moves to a new position and sends a 'handoff completion' message to the proxy node, wherein it is indicated that handoff is completed if an M marking position is '2', and a K marking position is 'NULL'. According to the method, the mobility of mobile nodes in the content center network is achieved, and the mobility management method based on the proxy node and the web cache avoids communication outage caused by single-fault nodes and link failure; once the proxy node fails and can not serve any more, the network can automatically carry out handoff in a web cache mode, and therefore it is guaranteed that communications are conducted normally.

A system and method for supporting network mobility based on identifier-locator separation, provides seamless session services to terminals inside the mobile network by enabling a variety of tunnel routers (home tunnel router, visit tunnel router, etc.) on network to store/manage mobile network mapping information for network mobility. The system for supporting network mobility based on identifier-locator separation includes: a mobile router configured to register mobile network identification information in a home tunnel router, and support communication with the home tunnel router, on behalf of mobile network nodes located in a home network; and a home tunnel router configured to support communication with a correspondent node by using tunnel router mapping information, and support communication with the mobile router by using mobile network mapping information.

A method of providing mobility between network subnets for a plurality of mobile network nodes attached to a mobile router, which mobile router hides any change in network subnet from said plurality of mobile network nodes and which network subnets provide access for said mobile router to a fixed network infrastructure, which method comprises the steps of (a) providing a signaling channel for each of said plurality of mobile network nodes; and (b) providing a data channel for each of said plurality of mobile network nodes; characterized in that said signalling channel utilises a multicast communication protocol to perform a mobility function on behalf of one or more of said plurality of mobile network nodes.

A system and method are provided for use in maintaining secure communications between a home network and a mobile client when the client roams outside of the home network to a new location. One method of the present invention includes the steps of: establishing a new IP address for the new client location; sending a registration message identifying the new IP address location; authenticating the registration message; encapsulating and transmitting the registration message to the home server; registering the new IP address as a care-of-address for the client at the home server; confirming the registration of the new IP address with the client; establishing a security association between the home server and the relay server on behalf of the client; performing network address translation between the client's permanent IP address client and the client's new IP address; tunneling packets addressed for the client between the home server based and the relay server based on the established security association and the address translation for the client; and decapsulating the packets at the relay server and forwarding the packets to the client.

The invention provides a method for realizing user and network authentication and key distribution based on a public key. The method comprises the following steps that: 1) a set of public key infrastructure (PKI) is installed in a communication network, and a certificate authentication centre issues a public key certificate to a communication entity in the network; 2) user equipment and a network mobility management entity perform mutual authentication by checking the public key certificates; 3) the user equipment and a network affiliation user server respectively generate a random number and a session key, wherein the session keys are deduced by the user equipment and the network affiliation user server according to the two random number; and the session keys deduced by the network affiliation user server is transmitted to the network mobility management entity; and 4) the user equipment and the network mobility management entity protect communication data through the session keys. The method can further solve the problem that the existing system easily leaks user identifies, that the authentication vector is easily captured, that the key K is shared for a long time and that a data sign is not supported, and enhance the safety of communication.

The present invention supports account monitoring for a mobile node by a home agent communicating with an AAA server computer. The home agent maintains accounting attribute information on system usage by a mobile node on a network. Attribute information is maintained and metered on the home agent in a data table. The home agent generates and transmits accounting messages containing the accounting attributes to the AAA server computer. The AAA server computer stores the attribute information in a memory for later billing.

The present invention provides a method of optimizing network mobility. The method comprises the steps of measuring and recording the failure types, the signal quality of the service cell and adjacent cell signal quality, the position information, the time stamp information, the cell information and the Pcell information of an MeNB when a UE generates the wireless link failure or SCG change failure in a Pscell, then reporting to a network side to be used as the input data of the network side optimization. By utilizing the method of the present invention, the network optimization data under a DC scene can be collected by a commercial terminal, thereby perfecting the problems, such as the network optimization processing, the problem positioning, etc.

A method for reconfiguring a mobility platform includes: enabling a mobile node to extract an advertisement signaling packet sent periodically by a network node, wherein the mobile node supports a plurality of client mobility management protocols, and the network node supports a plurality of network mobility management protocols; according to the advertisement signaling packet, enabling the mobile node to display at least one mobility management protocol that is mutually supported by the mobile and network nodes for viewing by a user; enabling the user to select one of the at least one mobility management protocol to serve as a new mobility management protocol to be mutually used by the mobile and network nodes; and enabling the mobile node to send a registration request packet to the network node.

The embodiment of the invention discloses a method, a device and a system for recovering data after restarting of a device. The method of the embodiment of the invention comprises the following steps: detecting the restarting of a first network mobility management network element, determining user equipment (UE) related with the first network mobility management network element, sending information which is carried with context information of the UE to the first network mobility management network element by a second mobility management network element, and recovering the context of the UE by the first network mobility management network element according to the acquired context information. Because the context of the UE in the device is recovered after the device is restarted, SGSN can receive a position updating request of the UE when the subsequent UE initiates position updating flow, and avoids the UE initiating attachment flow again; therefore, idle signaling can be reduced, and idle signaling load can be reduced.

The invention discloses an integrated management system for the mobility of an identification network. The system comprises a plurality of identification mapping servers, each identification mapping server is responsible for managing a plurality of subnetworks, all identification mapping servers form a distributed hash table-based Overlay network, and the identification mapping servers realize the function of local gateway agency in a physical network. By copying the identification mapping relationship of a plurality of mobile nodes in proportion in the Overlay network, the influence of the mobility management caused by the inconsistent topology between the physical network and the Overlay network is reduced, the query time delay is reduced, and a query load is balanced; and due to a hierarchic registering mechanism, the updating frequentness of the mapping in the Overlay network is reduced, and the performance for updating and querying the mapping relationships is balanced.

In a wireless communications system operating according to CDMA or the like, when one terminal simultaneously performs communication using multiple wireless resources (e.g., multiple carriers), there was a problem that when it was attempted to guarantee network mobility by the same soft handoff system as in the case where communication was performed using only one wireless resource, efficiency suffered from the viewpoint of network forwarding load, processing load and wireless resource occupancy time. Soft handoff termination is judged and soft handoff is forcibly terminated according to whether or not the data rate obtained for all resources on the network side satisfies a requested rate, based on a reception state notification from a terminal concerning wireless resources. By performing this processing, the soft handoff period is shortened, sufficient received strength in the terminal is maintained and terminal mobility is guaranteed, while at the same time network forwarding load, terminal processing load and wireless resource occupancy time are suppressed to the absolute minimum.

The present invention provides a new technique, according to which inefficient and redundant routing can be eliminated, which may occur when the fast handover is applied to network mobility and which may cause delay. According to this technique, a mobile router (MR) 210 makes the mobile node grasp the care-of address of the mobile router by performing route optimization to and from the mobile node (MN) 130 connected to the mobile network under its control. When the mobile node performs handover to another access network by fast handover, the mobile router tunnels a packet by using own care-of address as a source address—i.e. the packet, which has been sent from a correspondent node (CN) 140 and which is to be sent to an address before the handover of the mobile node (old care-of address)—and the packet is directly forwarded to the mobile node without passing through the home agent of the mobile router.

The invention discloses a space-air-ground network mobile management architecture based on a blockchain cross-chain technology. A blockchain is established for each network, a Byzantine fault-tolerantconsensus mechanism is utilized to establish the blockchain, equipment with strong capability and trustworthiness is used as a verifier to serve as a full node, and other equipment communicates withthe verifier and joins in the network in the identity of a light node. In order to encourage all airplanes and satellites to actively participate, reverse Vickrey-Clarke-Groves mechanism auction is simulated, so that the system efficiency is improved to the maximum extent. Block chain cooperation is realized by using a side chain/relay chain technology, and the determined price is securely transmitted to a target network. The blockchain can effectively prevent each node from breaking down, and can also prevent attacks for each network server. Through block chain cooperation, the information transmitted across the block chains is tamper-proof and audible. The blockchain can independently and privately maintain in-segment management. The cooperative block chain supports the inter-segment interconnection of the space-air-ground network to adapt to the dynamic network at low cost.

The invention discloses intelligent network architecture integrated with perceptual computing and storage, and an implementation method of the same. The intelligent network architecture integrated with perceptual computing and storage utilizes a model combined with a content identifier (CID), an equipment identifier (GUID) and a security identifier (SecID), and is characterized in that the content is stored in the network in a distributed manner; a content caching strategy is deployed in LCRS; a clustering strategy is deployed in a router; through mutual coordination between nodes, sharing and reuse of resources can be realized; a hybrid routing mode of device identifier/address is utilized, and NRS provides two levels of name analysis service to enable the network to support seamless host and network mobility; and an active defense security authentication mechanism is utilized, and an edge router is taken as a root of trust, with combination of the device identifier and the security identifier, access control and authentication are performed on the user, and effective interception of the illegal content is performed through combination of the content identifier. The intelligent network architecture integrated with perceptual computing and storage can percept the content of network transmission, changes of the network environment, and the behavior of the network user, can support seamless host and network mobility, and has the expandable ability and the evolution capability, and can realize active defense, thus having network security.

The present invention discloses a method and system for providing conversation switch in multiple access methods, and switch entity, user equipment, which includes: marking conversation of user equipment by using first sign, marking conversation of switch entity by using second sign, establishing reflection relationship of fist sign and second sign; when conversation is switched, conversation request carrying first sign is transmitted to switch entity, and second sign corresponding to said first sign in switch entity is determined according with reflection relationship; switch entity switches conversation after conversation determined by second sign. The invention solves switch problem that present voice calling continuous technology only supports single conversation in IP multimedia sub-system, and increase practicability of voice calling continuous technology, increase competition in internet mobile operation.

The invention discloses a method, a system and a device for switching between networks, updating location area and establishing ISR, and belongs to the field of communication. The method comprises that: a terminal device judges an initiating condition meeting a location area update flow, and initiates the location area update flow to a mobility management network element in a target network, wherein the initiating condition of the location area update flow comprises that the terminal access technology is changed; a source network mobility management network element selects a mobility management network element, which is positioned in the target network and establishes the ISR with the source network mobility management network element, as a target mobility management network element; and a forward switching request is sent to the selected target mobility management network element. The method ensures that the target mobility management network element is registered in HSS and acquires signed data, also ensures that terminal UE acquires novel temporary identity (P-TMSI/GUTI) allocated to the UE by the target mobility management network element so as to effectively guarantee the normal service of follow-up terminal UE.