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OwnerKenichi Sakamoto, Shiro Tanabe +2inventors
InventorsKenichi Sakamoto, Shiro Tanabe, Hui Deng, Hiroki Ikeda
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The present invention provides a method building a handover system to improve the service quality in mobile networks. When a mobile node has received a plurality of care-of addresses, it will send a Prepare Multi-path (PM) message to a correspondent node. Once receiving the PM message, each router replaces the old input label in the PM message with a new input label, and then sends it to the next router. Each router adds a new item into the Split Path Table based on the received message. After sending the PM message, the mobile node sends a Request Multi-path (RM) message to a correspondent node. Each MPLS core router decides whether to stop the RM message or not when the RM message is received. If it is yes, the corresponding input label will be split and the generated data packet will be transmitted to two paths from this router. One is the path in the network where the mobile node has been located, another one is a new path in the visiting network.
A path split method of handover in a mobile network, wherein a signaling is sent to an access router to request a new path and the path between a correspondent node and the mobile node is split when a mobile node performs a handover.
A path split method of handover in a MPLS network, wherein a signaling is sent to an access router to request a new path and the path between a correspondent node and the mobile node is split when a mobile node performs a handover.
Dependencies are inferred from the claim text.