This article presents information about exploiting user profiles to support differential services in next-generation wireless networks. In order to achieve the goal of providing high-quality multimedia services in next-generation wireless networks. It will be necessary to implement new techniques that can be guarantee Quality of Service (QoS) while accounting for the limited bandwidth and the delay and error characteristics of the wireless access network. This requires of the wireless access network. This requires a differentiated services architecture that can offer multiple service levels, local each with a different QoS guarantee. Implementing differentiated-services architecture in a wireless network is complex due to two key factors. First, due to user mobility, the network needs to guarantee resources spatially as the user moves and attaches to different points in the network. Second, the resource requirements may change due to changes in the mobile device. For example, a user switching from a palmtop to her laptop may request higher bandwidth from the network.