Typical Broadband Speeds Measurement and Methodologies for Mobile Access (Dated: 31 March 2018)

Typical Download Speed Range

Theoretical Speed 7.2 Mbps 14.4 Mbps 21 Mbps 300 Mbps

Typical Speed Range (At fixed locations)*

2.4 - 5.6 3.6 - 8.5 4.1 - 10.3 45.0 - 106.5

Typical Speed Range (On the move)*

2.4 - 3.9 2.7 - 6.4 3.8 - 7.2 41.2 - 75.4

* The Typical Speed Range refers to the range of download speeds that users can experience 80% of the time based on the specific test conditions and parameters stipulated below. Testing Time Frame: January to March 2018.

Measurement and Computation Methodologies for Mobile Access

  1. Test Equipment

    Measurements were done and recorded using Samsung Galaxy S6 with special software.

  2. Sample Size and Methodology

    More than 200 data points are collected for both stationary and mobile testing. Stationary tests are conducted to measure the typical speeds at fixed locations, and mobility tests are conducted by drive tests at reasonable vehicular speeds.

  3. Location of Test

    The data points are collected from at least 2 test clients deployed in areas that are geographically distributed covering industrial, residential, commercial, public transport locations, business district areas, etc.

    Examples of testing location (at fixed locations) – Kaki Bukit Crescent, Ghim Moh, Tampines Mall, Choa Chu Kang Bus Interchange and Telok Ayer Street, etc.

    Examples of testing location (on-the-move) – Street level drive test at Tuas Road, Orchard Road, New Upper Changi Road and Toa Payoh Lorong 6, etc.

  4. Websites and size of file transfer

    The download throughput is assessed based on downloading an average file size of 1GB over an internal server.

  5. Computation of typical speed

    The typical download speed range is derived by taking the results at the 10th and 90th percentile of the speed distribution from the data points collected. Therefore, this will represent the typical speed range that users can experience 80% of the time based on the stipulated test conditions.

  6. Explanation of factors affecting Mobile Broadband speeds
    Many factors affect the download speed and delivery of internet traffic. Some of these are:
    • Capabilities and types of broadband device/equipment used
    • Environmental factors – distance from the base station sites, network coverage within built-up areas, interference from nearby devices and shared users accessing the same broadband device/equipment, etc
    • The load on the base station site (number of users connected online & network associated traffic) at different times of the day
    • Computer hardware and software applications running, such as email/web browsers, virus scanners and background applications