隨著第五代行動通訊系統(5G)技術的成熟，5G 與物聯網(IoT)的結合已逐 漸成為未來推動產業智慧化的關鍵力量。5G 不僅為通訊技術帶來飛躍式提升， 更將加速各產業數位轉型，推動智慧化應用的發展。5G 的關鍵三大特性:大 規模機器型通訊(mMTC)、增強型行動寬頻(eMBB)、超可靠低延遲通訊 (URLLC)，使其成為物聯網應用的理想基礎。儘管目前已進入 5G 時代，5G 應 用的普及程度在我國仍然相對有限，在實際應用層面，許多領域尚未全面採 用這項技術。因此本研究目的是先比較 4G 與 5G 對物聯網技術應用之差異性， 並探討 5G 物聯網在產業中應用現況與影響，進而研析我國導入 5G 物聯網的 機會與挑戰，最後評估 5G 物聯網潛在應用，並找出最適台灣發展之情境。
本研究採用文獻分析法與深度訪談法，透過蒐集國內外應用案例以及我 國現況分析後，著重以交通、物流和醫療三大領域進行深入研究，並設計六 大構面，包括應用需求、技術導入、成本效益、資訊安全、政府法規以及營 運模式來探討電信業與產學界在實際推動 5G 物聯網應用時所遇到的困難與挑 戰，希冀透過訪談與案例分析，理解我國在導入過程中可能存在的機會與挑 戰，著重於挖掘我國在 5G 應用推動上未能普及的原因，並探討未來如何更有 效地加速 5G 技術的應用落地，從而促進智慧產業的發展。
本研究發現 5G 物聯網要達到廣泛落地仍需克服許多挑戰，包括現有設備 與新技術的相容性問題、基礎設施的建設成本，以及企業在導入新技術時的 實際需求與成本效益考量等，造成許多企業仍對 5G 的實際需求和投資回報抱 持觀望態度，這使得 5G 物聯網應用的推廣進度相對遲緩。因此，政府應扮演 政策落實的先行者，電信業者也可發揮系統整合角色，加速 5G 物聯網應用的 廣泛落地。

As 5G technology matures, the integration of 5G and the Internet of Things (IoT) is gradually becoming a key driver of industrial intelligence. 5G not only provides a significant technological upgrade for communication systems but also accelerates digital transformation across industries, promoting the development of intelligent applications. However, despite entering the 5G era, Taiwan's adoption of 5G applications remains limited. In practical terms, many sectors have yet to fully utilize this technology. Therefore, the aim of this research is to first compare the differences between 4G and 5G in IoT applications, then explore the current state and impact of 5G IoT in various industries, and finally analyze the opportunities and challenges of implementing 5G IoT in Taiwan. The study concludes by evaluating potential 5G IoT applications and identifying the most suitable scenarios for Taiwan's development.
This study utilizes a literature review and in-depth interviews, focusing on three key sectors: transportation, logistics, and healthcare. conducting an in-depth exploration of these areas. Six dimensions—application demand, technological integration, cost efficiency, information security, government regulations, and operational models—are designed to investigate the challenges and difficulties encountered by the telecommunications industry and academia in the practical implementation of 5G IoT applications.
The research findings reveal that several challenges must be addressed before widespread implementation of 5G IoT can be achieved. These challenges include compatibility issues between existing devices and new technologies, the high cost of infrastructure development, and considerations of cost-effectiveness for companies adopting new technologies. These factors have led many businesses to adopt a cautious approach toward 5G, questioning its actual demand and return on investment, which in turn has slowed the promotion of 5G IoT applications. Therefore, the government should take a leading role in policy implementation, while telecom operators can act as system integrators to accelerate the broader deployment of 5G IoT technologies.

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