本論文提出一套完整之WiMAX (World Interoperability for Microwave Access；全球互通微波存取)與HSDPA (High Speed Downlink Packet Access；高速下行封包接取)網路互聯機制，以因應目前無線寬頻數據服務之整合與發展。本互聯機制包括兩個網路的互聯架構，服務品質保證機制，以及交遞觸發模組HTM (Handover Trigger Module)等。
本論文首先提出一套可符合HSDPA及WiMAX標準的網路互連架構，根據此架構，本論文設計一個服務品質保證機制，此機制建議在網路進行交遞時，可透過“服務感知式之服務品質映射” (WiMAX-HSDPA Service Aware QoS Mapping；WHSAQM)；使應用服務從原先網路交遞至下個網路時，仍能維持服務品質之接續；此外，並可透過交遞觸發模組之各運作機制：如網路連接管理，預先註冊，場強監控及交遞觸發等機制以即時反應網路及無線通道狀況，減少可能發生之服務品質衰減或交遞中斷。本論文最後依據文中所提出之互聯機制，在實際WiMAX及HSDPA網路上進行測試，以驗證各服務之關鍵績效指標(KPI)及所提機制之可行性。
經實際測試結果顯示：採用本論文之互聯機制可保證所有應用服務均能順利在兩個網路間完成交遞，並可確保各應用服務所需之服務品質需求。在各國WiMAX頻譜執照陸續釋出之際，此機制可為既有或新起之電信業者提供一套完整之網路互聯解決方案。

This thesis presented a set of comprehensive interworking mechanisms between WiMAX (World Interoperability for Microwave Access) and HSDPA (High Speed Downlink Packet Access) to fulfill the integration and development of latest wireless broadband data service. The proposed interworking mechanisms comprise: WiMAX-HSDPA interworking architecture, QoS (Quality of Service) guarantee mechanism, as well as handover trigger module (HTM).
This thesis first introduced an interworking architecture which complied with both HSDPA and WiMAX standards. Based on this architecture, we recommended a QoS guarantee mechanism i.e. “WiMAX-HSDPA service aware QoS mapping” (WHSAQM) to assure the QoS continuity between these two networks during handover. Furthermore, the HTM which consists of network connection management, pre-registration, signal monitoring and handover trigger mechanisms support to reply the network and radio channel status promptly to minimize the potential service degradation and handover interruption. Eventually, field tests are performed to verify the key performance indicators (KPIs) of services and the feasibility of the recommended mechanisms.
After verification in the field test, all the services can be seamlessly handover between these two networks, and the QoS requirement of services can be guaranteed. While the WiMAX spectrum had just been released by some countries, this thesis provides a feasible interworking solution for those existing cellular operators or green-field operators who have plans to implement the WiMAX and HSDPA in the future.

[1] IEEE, “Part 16: Air Interface for fixed and mobile broadband wireless access system,” IEEE 802.16e-2005 /Amend. 2 & Corr. 1, Feb. 2006.
[2] Apostolis K. Salkintzis, Chad Fors and Rajesh Pazhyannur, Motorola, “WLAN-GPRS integration for next-generation mobile data networks,” IEEE Wireless Communications, pp. 112 – 124, October 2002.
[3] Ray-Guang Cheng, Shiao-Li Tsao, “3GPP-WLAN Interworking using a novel access Control Mechanism,” Journal of Internet Technology, Vol.3, No.3, 2005.
[4] Hyun-Ho Choi, Song, O. and Dong-Ho Cho, “A seamless handoff scheme for UMTS- WLAN interworking,” Globecom, 2004, pp.1559 - 1564, Vol.3. Dec. 2004.
[5] J. Jackson Juliet Roy, V. Vaidehi and S.Srikanth, “Always Best-Connected QoS integration model for the WLAN, WiMAX Heterogeneous Network,” First International Conference on Industrial and Information Systems, ICIIS 2006, 8 - 11 August 2006.
[6] Hamid Aghvami, Nima Sattari, Oliver Holland, Paul Pangalos, “Group handover among heterogeneous wireless networks,” IEEE MELECON, May 16-19 2006.
[7] Pyung-Soo Kim and Yong-Jin Kim, “New authentication mechanism for vertical handovers between IEEE 802.16e and 3G Wireless Networks,” IJCSNS International Journal of Computer Science and Network Security, VOL.6 No.9B, Sep. 2006.
[8] R. Inayat, R. Aibara, and K. Nishimura, “Handoff management for mobile devices
in hybrid wireless data networks”, JCN, vol. 7, No. 1, March 2005.
[9] Chung-Kuo Chang , “A Mobile-IP based mobility system for wireless metropolitan area networks,” Proceedings of the 2005 International Conference on Parallel Processing Workshops (ICPPW’05), June 2005.
[10] Wei Wu, Nilanjan Banerjee, Kalyan Basu and Sajalk Das, “SIP-Based vertical handover between WWANS and WLANS,” IEEE Wireless Communications, June 2005.
[11] Fangmin Xu, Luyong Zhang, and Zheng Zhou, “Interworking of WiMAX and 3GPP networks based on IMS,” IEEE Communications Magazine, March 2007.
[12] D. Kim and A. Ganze, “Architecture for 3G and 802.16 wireless networks integration with QoS support,” Proc. 2nd Int’l. Conf. QoS in Heterogeneous Wired/Wireless Networks, 2005.
[13] Shahbaz Khan, Shoaib Khan, Sahibzada Ali Mahmud, Dr. Hamed Al-Raweshidy, “Supplementary interworking architecture for hybrid data networks (UMTS- WiMAX),” IEEE Proceedings of the International Multi-Conference on Computing in the Global Information Technology (ICCGI'06), Aug. 2006.
[14] Quoc-Thinh Nguyen-Vuong, Lionel Fiat, and Nazim Agoulmine, “An architecture for UMTS-WIMAX interworking,” IEEE Broadband Convergence Networks 2006.
[15] 3GPP TR22.934, “Feasibility study on 3GPP system to WLAN interworking”, Tech. rep., v6.2.0, September 2003.
[16] 3GPP TS 23.234, “3GPP system to Wireless Local Area Network (WLAN) interworking; System Description,” v.6.2.0, Sept. 2004.
[17] Klaus I. Pedersen, Preben E. Mogensen, and Troels E. Kolding, Nokia Networks, “Overview of QoS options for HSDPA,” IEEE Communications Magazine, pp. 100-105, July 2006.
[18] IEEE P802.21/D00.01, “Draft IEEE Standard for local and metropolitan area networks: Media independent handover services,” July 2005.
[19] WiMAX Forum Network Architecture, “Stage 3: Detailed protocols and procedures, Annex: WiMAX - 3GPP interworking,” Release 1.1.0, July 11th, 2007.
[20] Castelluccia, C., “HMIPv6:A hierarchical Mobile IPv6 proposal,” ACM SIGMOBILE Mobile Computing and Communications Review, 2000.
[21] Johnson, D. B., and Perkins, C. E., “Mobility support in IPv6,” Internet draft ietf-mobileip-ipv6-24, Mobile IP Working Group, 2003.
[22] Perkins, C.E., “IP Mobility Support,” Internet Document RFC 2002, 1996.
[23] Perkins, C. E., “IP Mobility Support for IPv4,” Internet Document RFC 3220, 2002.
[24] Harri Holma and Antti Toskala, John Wiley & Sons, Ltd., “WCDMA for UMTS, Radio access for third generation mobile communications,” Third Edition, Sep. 2004.
[25] Harri Holma and Antti Toskala, John Wiley & Sons Ltd., “HSDPA/HSUPA for UMTS: High Speed Radio Access for mobile communications,” 2006.
[26] Jeffrey G. Andrews, Arunabha Ghosh and Rias Muhamed, Prentice Hall Communications Engineering and Emerging Technologies Series, ” Fundamentals of WiMAX understanding broadband wireless networking,” 2007
[27] Loutfi Nuaymi, John Wiley & Sons, Ltd., “WiMAX technology for broadband wireless access,” 2007.
[28] 3GPP TS 22.105, “Services and service capabilities,” Ver. 3.10.0, Oct. 2001.
[29] 3GPP TR 25.848, “Physical Layer Aspects of UTRA High Speed Downlink Packet Access,” Ver. 4.0.0, Mar. 2001.
[30] 3GPP TS 23.107, “Quality of Service (QoS) concept and architecture (Release 7),” V7.0.0, Jun. 2007.
[31] Mi Sun Ryu, Hong-Shik Park and Sang-Chul Shin, ‘QoS class mapping over heterogeneous networks using Application Service Map,” Proceedings of the International Conference on Networking, International Conference on Systems and International Conference on Mobile Communications and Learning Technologies, 2006.
[32] Mario Marchese, John Wiley & Sons, Ltd., “QoS over heterogeneous network," Jun. 2007.