摘要:
The invention provides a method and apparatus for building a linked binding cache. The method includes storing mobile router entries in a binding cache. The mobile router entries include a first mobile router entry having a prefix and an indication of the prefix's length along with an associated intermediate address. The method also includes linking a second mobile router entry to the first mobile router entry for delivering at least one data packet via the first mobile router. The method further includes adding a pointer in the binding cache from the entry of the second mobile router to the first mobile router entry when the intermediate address of the second mobile router matches the first mobile router's prefix in order to create a linked binding cache.
摘要:
A method of transmitting a data packet on a communication path from a first communication node (CN1, CN2) to a second communication node (LFN1, LFN2) in a mobile network (115). The method includes receiving a route message (1010, 1020) from the second communication node, wherein the route message includes a list of intermediary addresses ({MR1-COA}, {MR1-COA, MR2-COA}) between the first communication node and the second communication node. A preferred communication path is generated in response to the list of intermediary addresses; and at least one data packet is transmitted from the first communication node to the second communication node via this preferred communication path. In this matter, an optimised data path is determined in order to send at least one data packet to an intended receipient (LFN1, LFN2), for example in a nested mobile network scenario.
摘要:
A mobile communication network comprises a home agent supporting mobility of a mobile entity by generating bindings between a home address of the mobile entity and a care of address of the mobile entity. A mapping processor provides at least one set of mappings between a potential future care of address for a mobile entity and a real time characteristic criterion. The mappings may for example be determined in response to previous movements of the mobile entity in the communication network. A processor determines a real time characteristic and the home agent is arranged to change a binding between the home address and a current care of address in response to the at least one set of mappings and the real time characteristic, and without receiving binding updates from the mobile entity. The approach may allow support for mobility of a mobile entity while reducing signalling in support of mobility.
摘要:
A method of validated communication The present invention provides a method of validated communication between a mobile network node (MNN) and a correspondent node (CN) via at least a first mobile router (MR). The method is characterized by employing an extended return routability checking procedure (XRRP) wherein an MNN test initiation (MNNTI) message is sent by the MR, and a MNN test (MNNT) message is sent by the CN. This adds to the security of requiring the home and care-of addresses being consistent as noted previously in standard RRPs, by enabling the generation of binding update validation keys based on receipt on any or all of the three HoT, CoT and MNNT test messages. The method is further characterized by sending from the MR an extended binding update (XBU), comprising the MNN's address (MNNA). By extending the binding update to include the MNNA in this manner, validated CN/MNN route optimization can be achieved.
摘要:
A mobile communication network comprises a home agent supporting mobility of a mobile entity by generating bindings between a home address of the mobile entity and a care of address of the mobile entity. A mapping processor provides at least one set of mappings between a potential future care of address for a mobile entity and a real time characteristic criterion. The mappings may for example be determined in response to previous movements of the mobile entity in the communication network. A processor determines a real time characteristic and the home agent is arranged to change a binding between the home address and a current care of address in response to the at least one set of mappings and the real time characteristic, and without receiving binding updates from the mobile entity. The approach may allow support for mobility of a mobile entity while reducing signalling in support of mobility.
摘要:
A method of transmitting a data packet on a communication path from a first communication node (CN1, CN2) to a second communication node (LFN1, LFN2) in a mobile network (115). The method includes receiving a route message (1010, 1020) from the second communication node, wherein the route message includes a list of intermediary addresses ({MR1-COA}, {MR1-COA, MR2-COA}) between the first communication node and the second communication node. A preferred communication path is generated in response to the list of intermediary addresses; and at least one data packet is transmitted from the first communication node to the second communication node via this preferred communication path. In this matter, an optimized data path is determined in order to send at least one data packet to an intended recipient (LFN1, LFN2), for example in a nested mobile network scenario.
摘要:
A method of transmitting at least one data packet from a communication node in a data communication network. The method includes receiving (920) a request at a communication node, to transmit at least one data packet to a first destination address and searching (930) for the (first) destination address in a cache of the communication node. A determination (960) of an intermediary address of the destination address is made. The destination address is then replaced with the intermediary address and the steps of searching, determining and replacing are repeated, until no new intermediary address is found. The at least one data packet is then transmit (970) to the destination address via the identified intermediary address(es). A communication unit (corresponding node) communication message and method for building a linked binding cache are also described. In this manner, an optimised data path is determined in order to send at least one data packet to an intended recipient, for example in a nested mobile network scenario.
摘要:
The invention provides a method and apparatus for building a linked binding cache. The method includes storing mobile router entries in a binding cache. The mobile router entries include a first mobile router entry having a prefix and an indication of the prefix's length along with an associated intermediate address. The method also includes linking a second mobile router entry to the first mobile router entry for delivering at least one data packet via the first mobile router. The method further includes adding a pointer in the binding cache from the entry of the second mobile router to the first mobile router entry when the intermediate address of the second mobile router matches the first mobile router's prefix in order to create a linked binding cache.
摘要:
A method for enabling autonomous mode routing between mobile devices in a plurality of nested mobile networks, the method including the steps of: discovering (305) at least one neighboring mobile device; exchanging (310) routing information with the at least one neighboring mobile device using a plurality of unicast messages; populating (315) an autonomous mode routing table (AMRT) using the routing information, wherein the AMRT includes an entry corresponding to each mobile network in the plurality of nested mobile networks; and forming (320) a connection with the at least one neighboring mobile device for enabling autonomous mode routing with the at least one neighboring mobile device.
摘要:
A method of validated communication The present invention provides a method of validated communication between a mobile network node (MNN) and a correspondent node (CN) via at least a first mobile router (MR). The method is characterised by employing an.extended return routability checking procedure (XRRP) wherein an MNN test initiation (MNNTI) message is sent by the MR, and a MNN test (MNNT) message is sent by the CN. This adds to the security of requiring the home and care-of addresses being consistent as noted previously in standard RRPs, by enabling the generation of binding update validation keys based on receipt on any or all of the three HoT, CoT and MNNT test messages. The method is further characterised by sending from the MR an extended binding update (XBU), comprising the MNN's address (MNNA). By extending the binding update to include the MNNA in this manner, validated CN/MNN route optimisation can be achieved.