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Wireless communication that provides voice only is not sufficient to support the necessity of user. It is an important feature of future wireless communication to offer this capability through mobile Internet. Mobile IP allows mobile hosts to change their location and reduce the losing probability of data packets in wireless communication networks. However, Mobile IP still have some defects in handoff and route aspects. Therefore, Cellular IP protocol is proposed for routing of IP diagrams to mobile stations and fast handoff control in a limited geographical area. In this paper, a handoff method is proposed to improve Quality of Service and resource switching management to reduce data packet loss for mobile multimedia communication in hierarchical network. In the future, all-IP network and mobile multimedia communication are two important characteristics, so that IP macromobility and micromobility network architecture are combined for data packets transfer. A Soft-handoff method is also presented to improve Quality of Service (QoS) and resource switching management to reduce data packet loss.