The purpose of this paper is to present our current work on mobility support integrated with QoS mechanisms in a wireless local area network. Such an environment becomes increasingly important with the emergence of ubiquitous mobile devices connected via wireless LANs and the development of future wireless telecommunication services such as UMTS. They contribute to the emergence of new real-time multimedia applications such as voice and video, networked games, or cooperative work that require better quality of service than current Best Effort Integration of mobility with QoS support is a difficult challenge because of specific radio channel characteristics and complexity of mobility management.