O-RAN軟體社群（OSC）和OAI FlexRIC開發了開放式無線接取網路（O-RAN）的軟體實現，我們在此論文展示了O-RAN概念的開放性。本論文的貢獻包括開發OSC O-DU E2 Handler，E2 Handler作為從Near-RT RIC接收的E2訊息的端點，與其他內部模塊操作，包括取得測量資料和參數的設定。此外，我們還加強了OSC上 xApps的功能。為確保所開發的xApps的一致性，我們使用了TeraVM RIC Test進行驗證。經過這些開發，我們能夠在OSC上展示O-RAN聯盟所提出的服務等級協議（SLA）解決方案。最終我們還強化了FlexRIC Controller的Near-RT RIC和xApp，並實現OSC O-DU與FlexRIC Controller的整合。透過整合結果展示了OSC和OAI FlexRIC間的互操作。未來OSC Near-RT RIC和OAI FlexRIC控制器都有潛力執行更複雜的算法，以優化無線接取網路的性能。

The O-RAN Software Community (OSC) and OAI Flexible RAN Intelligent Controller (FlexRIC) develop a software implementation of an open radio access network (O-RAN). This thesis demonstrates the openness of the O-RAN concept. The main contributions of this thesis include the development of the OSC O-DU E2 Handler, which serves as the termination point for E2 messages from the Near-RT RIC and operates with other internal modules, including collecting the measurements and configuring parameters. Additionally, we have enhanced OSC xApps that collect measurements and configure parameters within OSC O-DU. To ensure the conformance of the developed xApps, we have employed TeraVM RIC Test. By leveraging these advancements, we are able to demonstrate the Service Level Agreement (SLA) solution on OSC which proposed by the O-RAN Alliance. Furthermore, we have also enhanced the OAI FlexRIC NearRT RIC and xApp to enable the integration of OSC O-DU with the OAI FlexRIC Controller. This integration result showcases the interoperability between OSC and OAI FlexRIC. Looking ahead, both OSC Near-RT RIC and OAI FlexRIC Controller have the potential to execute more advanced algorithms to optimize the performance of the RAN.

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