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It is necessary to provide seamless multimedia services to mobile users. However, due to the effects of host mobility, it is difficult to achieve seamless QoS guarantee. Several solutions have been proposed to couple QoS with mobility management. In this paper, a QoS-aware HMIPv6 solution using QoS NSLP is proposed. The cross-layer solution takes use of L2 and L3 triggers to execute the resource reservation in new path and CRN(crossover node) discovery before MN moves into new domain. Also the proposed scheme can avoid the tunnel traverse in HMIPv6 as the advance resource reservation and CRN discovery procedure is done before MN registers with nAR.. The proposed approach can significantly reduce the re-reservation delay after the handover.