鑒於國際通訊技術日益發展，對頻譜使用需求不斷增加。為滿足免執照無線區域網路之頻譜需求，全球已有多個國家新增開放6 GHz頻段 (5925-7125 MHz)供免執照無線區域網路使用。我國目前尚未釋出6 GHz頻段之正式規劃決策。6 GHz頻段為少數可提供大頻寬之中頻段資源，對於我國之社會經濟重要性高。因此本研究旨在研析適合我國之6 GHz頻段開放供免執照無線區域網路之方案。
本研究採用情境分析法，全球6 GHz頻譜規劃情境可分為兩種：開放全頻段1200 MHz (5925-7125 MHz)與開放部分頻段500 MHz (5925-6425 MHz)。本研究透過現況分析掌握國際上6 GHz頻段之規劃考量及頻譜管理文獻，歸納出影響6 GHz頻段規劃之關鍵因素：頻譜管理、頻譜經濟效益、頻譜共享或防干擾處理技術。根據上述三大關鍵因素，綜合評估我國6 GHz全頻段開放及部分頻段開放之整體效益，並提出適合我國之頻譜規劃方案。
研究發現我國WLAN上網需求並無明顯增加，且若分配1200 MHz頻譜供免執照使用將造成頻譜分配比例失衡。此外，開放1200 MHz頻譜將造成較多的財政收入損失，影響較多既有用戶，且需要複雜的頻譜共享和干擾管理技術。因此，研究結果顯示我國6 GHz頻段短期適合開放500 MHz (5925-6425 MHz)供免執照無線區域網路使用，便可發揮頻段優勢，為無線區域網路技術提供更寬廣的頻譜，提高網路速度和容量，提供用戶更多選擇和優質的網路體驗，同時確保有效的頻譜利用。
綜上所述，基於國家社會經濟效益與頻譜使用效率最大化，本研究期望研究結果能供我國頻譜主管機關作為規劃6 GHz頻譜政策之參考。

With the rapid development of international communication technology, the demand for spectrum usage has been steadily increasing. Many countries have already allocated the 6 GHz frequency band (5925-7125 MHz) for unlicensed wireless local area networks. However, Taiwan has not decided on the 6 GHz frequency band yet.
The purpose of this study is to assess suitable strategies for opening the 6 GHz band for unlicensed wireless local area networks in Taiwan. This study employs scenario analysis, dividing the global planning into two scenarios: opening the entire 1200 MHz frequency band and opening a partial 500 MHz frequency band (5925-6425 MHz). This study identifies key factors influencing the 6 GHz spectrum planning, including spectrum management, spectrum economic benefits, and spectrum interference management.
The study finds that the demand for WLAN internet access in Taiwan has not shown a significantly increased. Allocating the full 1200 MHz spectrum for unlicensed spectrum would lead to an imbalance in spectrum distribution, fiscal revenue losses, and complexity in spectrum sharing. Therefore, the study suggests opening 500 MHz (5925-6425 MHz) of the 6 GHz frequency band in the short term. This allocation strategy would leverage the frequency band's advantages, improving network speed and capacity while ensuring effective spectrum utilization.
In conclusion, this research aims to provide guidance for Taiwan's spectrum regulatory authorities in planning the 6 GHz frequency band policy, with a focus on maximizing socio-economic benefits and spectrum utilization efficiency.

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