Newsletter 高速鐵路簡訊 . 交通部高速鐵路工程局
高鐵服務再提升-Wi-Fi設備建置 High-speed Rail Service Upgrade-Wi-Fi Equipment Installation
高鐵列車WiFi建置(車廂內裝設接收4G天線)。

台灣高鐵已於106年7月18日完成高鐵全線12個車站及34組列車之Wi-Fi設備建置,此建置作業係由中華電信與台灣高鐵公司合作完成,並以「iTaiwan」之無線上網識別名稱(SSID)提供免費無線上網服務。目前已配合2017世界大學運動會完成啟用,高鐵旅客可利用手機、平板或筆電等行動通訊設備,直接選擇「iTaiwan」名稱之無線網路訊號,使用高鐵公司提供的友善上網環境,增加乘客旅途中的網路需求便利性。
高鐵列車上的Wi-Fi訊號需要透過4G行動網路才能連上「iTaiwan」主機,因高鐵車速極快,基地台訊號重疊區域「交遞」(Hand-Over)頻繁(例如進出隧道時),加上通過的地形複雜,且高鐵的旅客集中(每列車將近1,000位旅客),於二列車交會時即有可能將近2,000人需由同一基地台提供服務,因此列車上旅客使用手機通話時易有斷訊的情形,若使用頻寬需求較大的網路服務(如收看影片),可能出現上網速率不穩情形,無法與車站內或是民眾家中由有線光纖纜線所提供的Wi-Fi效能相比。

By Jul. 18, 2017, THSRC has already completed the installation of Wi-Fi equipment in 12 stations and 34 trains. The installation work was completed together by Chunghwa Telecom Co., Ltd. and THSRC which will provide free wireless Internet access via the wireless internet identification (SSID) of “iTaiwan”. The wireless service has been initiated in cooperation with the opening of XXIX Summer Universiade. HSR passengers can use their mobile phone, tablet, laptop or other mobile communication equipment to enjoy the friendly wireless environment by directly selecting the “iTaiwan” wireless network signal to increase convenience of network demand during the journey.
The Wi-Fi signal on the HSR can only to be connected to the “iTaiwan” server via 4G mobile network. In addition to the high speed of the HSR and frequent “hand-over” signals among base stations in overlap areas (such as while entering and leaving the tunnel), the complicated terrain and high passenger concentration (nearly 1,000 passengers per train), which may reach nearly 2,000 people needing to be served by the same base station during two trains crossing, signal interruption may easily occur during a call. If using network services with wide bandwidth requirements (such as watching videos), there may be Internet speed instability. The network service on the HSR cannot be compared with the Wi-Fi performance provided in the stations or at home using wired fiber-optic cables.

  • 高鐵列車WiFi建置(車廂內裝設WiFi發射設備)。
  • 高鐵列車上的Wi-Fi訊號透過4G行動網路連上iTaiwan主機示意圖。
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