摘要
隨著技術的演進，電信業者與政府之大力推展下，大眾對於行動上網的速度和品質要求亦不斷提昇。如何達成用戶期望、兼顧投資成本並擴大市佔率，是業者永遠的課題。本研究針對電信業者重大成本支出之一 — 後置傳輸網路（Backhaul，各基地台與機房間傳輸）之技術、佈建優缺點與台灣市場、產業現況進行分析。本研究歸納後置傳輸網路解決方案包括『自建網路』、『租用光纖』、『有線電視合作』、『用戶迴路租用』、『微波架設』與『毫微微蜂巢式基地台商業模式』等，接著從法規面、成本面、營運面、附加價值與時效性等面向切入，再以產業現況、台灣市場的同業與異業間發展、資金、資源條件與策略方向進行綜合評估分析各個方案，提供電信業選擇後置傳輸網路評估之用，藉以提供行動寬頻業者佈建快速、穩定而又便宜之行動寬頻。

ABSTRACT
With the rapid advancement in technology, coupled with the strong infrastructure investment by telecommunications service providers and the well laid-out telecommunications policies set by the governmental authority, the general public mobile users’ appetite for mobile internet access speed and quality is ever increasing. The biggest challenge for mobile operators today is to strike a balance between 3 key important business objectives – One, fulfilling the demands of their customers for better telecommunication services and quality; Two, managing the costs of investment, in attaining such goals, within a sustainable level; and Three, at the same time, continue to expand their market share and penetration.
This research report analyzes one key aspects of the business objective in managing the costs of infrastructure investments and keeping it within a sustainable level. The report mainly focuses on one of the major cost items of telecommunication infrastructure investments – the backhaul communications network. It analyses the technology involved, pros and cons associated with each technological investment options, and in parallel, taking into context of the current and future market developments in Taiwan when considering various investment decisions.
By studying and categorizing the backhaul solutions into several research areas including “Self-built Network”, “FTTX”, “LLU”, DOCSIS”, “Microwave” and “Femtocell”, this research report provides an anlaysis of each solution option from the perspective of government regulations; investment costs; operational complexity; any additional value add that the solution option brings; and the realistic time factor to consider when implementing each option. This report also presents a comprehensive analysis of each investment options by keeping the following factors in perspective – existing infrastructure; developments between network operators and major asset owners (e.g. building landlords); investment climate; resource conditions; and various business development strategies in Taiwan.
This report is suitable for executives of mobile network operators in using it as an investment research reference, when considering and deciding which backhaul communication network solution is best suited to meet their business needs; and ultimately utilizing such investments to deliver better mobile communication services and quality to their consumers.

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