COMMUNICATION SYSTEM, RESOURCE MANAGEMENT DEVICE, RESOURCE MANAGEMENT METHOD, COMMUNICATION MANAGEMENT DEVICE, AND COMMUNICATION MANAGEMENT METHOD

摘要

An object is, when a mobile terminal performs a handover, to more quickly reset a path after the handover and reduce interrupt time (particularly interrupt time of a QoS path) of packet communication. For example, in a state in which a MN 101 has not acquired an address (NCoA) of a new connection destination (AR 109), the MN 101 requests that a QNE (proxy) 123 start a process of establishing a QoS path used when the MN 101 is connected to a new connection destination. The QNE (proxy) makes a resource reservation between the ONE (proxy) itself and a CN 121. As a result, in an upper stream above a QNE (CRN 115), new path information (filter B) is correlated with path information (filter A) used when the MN is connected to an AR 105. Until when the MN uses the actual new CoA and updates the QoS path after movement, the data packet is encapsulated by a proxy node and transmitted based on the path information (filter B).