RSVP is basically designed for fixed networks and does not provide mobility support. In order to provide QoS support for mobility in a wireless environment, we present a new resource reservation protocol for seamless handover. HO-RSVP integrates with Mobile IPv4 to maintain a continuous QoS guarantee between two mobile nodes. In the protocol, the resource reservation remains unaffected in the unchanged segments of the signal path in case of mobility. It is only necessary to make a new reservation in the changed segments. The protocol can also prevent the mobile node from moving to a performance-degraded access network through resource pre-reservation before handover. When the receiver is mobile, resource reservation can be refreshed in the data path for the sender after handover. When the sender is mobile, a procedure is initiated to tear down the old reservation after handover
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