| Summary: | 碩士 === 國立臺灣科技大學 === 電子工程系 === 96 === 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.
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