NTENTS 15.1 Introduction 15.2 Background and Related Work 15.3 Session Establishment for QoS-Guaranteed Real-Time Multimedia Service Provisioning on Broadband Convergence Network (BcN) 15.4 Experimental Implementations and Performance Evaluation of QoS Provisioning in Heterogeneous Wired and Wireless Convergence Networks 15.5 Conclusions References Introduction In next generation Internet, converged heterogeneous broadband wired and wireless subnetworks and various terminal equipments will be interconnec- ted [1]. As an example, the backbone transit network may be implemented by IP/T-MPLS (Transport Multiprotocol Transport Switching) [2], IP/Carrier Ethernet [3], or IP/WDM (wavelength-divisioning multiplexing) technology with xDSL or PON (passive optical network) access loop, while the home/office intranet may be implemented based on IEEE 802.3 Fast/Gigabit Ethernet or IEEE 802.11 wireless local area network (LAN) (i.e., WiFi) technology [4]. Each subnetwork may have a different control plane function, such as signal- ing protocol for connection establishment or resource reservation with connec- tion admission control (CAC). Since most home/office intranets are currently implemented with connectionless and contention-based Ethernet or wireless LAN, the quality of service (QoS)-guaranteed service provisioning is strictly limited without well-designed CAC. Also, the end terminal may have different capabilities in multimedia data processing, display size and resolution. For example, the sender may be a C 2009 by Taylor & Francis Group, LLC SIP Handbook: Services, Technologies, and Security desktop PC-based multimedia device with high capability in video data encod- ing/decoding and large display size, while the receiver may be a PDA-based multimedia device with limited capability and small display size. In this case, an end-to-end real-time multimedia session should be established that can be supported by both the end terminal nodes. As a result, we must resolve two major problems in order to provide QoS-guaranteed 