1. Zhuang, W., Gan, Y.S., Loh, K.J., Chua, K.C.: Policy-based QoS management architecture in an integrated UMTS and WLAN environment. IEEE Commun. Mag. 41, 118–125 (2003)
2. QoS and policy aspects of 3GPP - WLAN interworking (Release 7), 3GPP TR 23.836 v0.4.0 (2005)
3. Skyrianoglou, D., Passas, N.: A framework for unified IP QoS support over UMTS and WLANs. In: Proc. European Wireless 2004, Barcelona, Spain (February 2004)
4. Maniatis, S.I., Nikolouzou, E.G., Venieris, I.S.: QoS issues in the converged 3G wireless and wired networks. IEEE Commun. Mag. 40, 44–53 (2002)
5. 3GPP system architecture evolution: report on technical options and conclusions, 3GPP TR 23.882 v.0.1.1 (2005)