Nation-wide Outdoor Service Coverage
This indicator measures Nation-Wide Outdoor Service Coverage for the 3G cellular network. Service coverage is determined by signal strength. The availability of service coverage is the ability of a cellular network to achieve the minimum signal strength of at least -100dBm. Under IDA's 3G Public Cellular Mobile Telephone Service ("PCMTS") QoS framework, mobile operators are required to achieve Nation-Wide Outdoor Service Coverage of >99%. In order to better measure the end users' experience*, IDA has used mobile handsets to collect the signal strength sample readings for all service coverage indicators starting from Q2 2013.
*Based on IDA's coverage performance surveys which included nation-wide outdoor drive test and areas such as housing estates/town centres, outdoor recreational areas and above ground MRT tracks.
Note: End users' individual experience may differ due to various reasons such as model of handset used, handset settings, number of users in the vicinity, etc.
Call Success Rate
Note: Call success rates are based on the mobile telecommunication operator's actual network traffic logs.
Call Drop Rate
Note: Call drop rates are based on the mobile telecommunication operator's actual network traffic logs.
In-building Service Coverage
IDA's Performance Survey Period: Q4 2013
|M1||SingTel Mobile||StarHub Mobile|
|No of buildings passed/No of buildings tested
Compliance standard >85% per building
(retest results, original test result in Q4 2013 was 51/60)
(retest results, original test result in Q4 2013 was 58/60)
(retest results, the original test result in Q4 2013 was 59/60)
* The updated performance survey results after the six-month rectification period
Note: The same sixty buildings were tested across the three mobile operators. The performance of each of the MTO varies for each of the building tested. End users' individual experience may differ due to various reasons such as model of handset used, handset settings, building/unit structures, number of users in the vicinity, etc. The in-building service coverage results are based on IDA's coverage performance surveys.
Tunnel Service Coverage
|IDA's Performance Survey
Period - Q4 2013
|Compliance standard||M1||SingTel Mobile||StarHub Mobile|
|Central Expressway (Road Tunnel)||>95% for existing road and MRT tunnels||Pass||Pass||Pass|
|Kallang-Paya Lebar Expressway (Road Tunnel)||Pass||Pass||Pass|
|Fort Canning Tunnel (Road Tunnel)||Pass||Pass||Pass|
|Woodsville Tunnel (Road Tunnel)||Pass||Pass||Pass|
|North South Line (MRT Tunnel)||Pass||Pass||Pass|
|East West Line (MRT Tunnel)||Pass||Pass||Pass|
|Circle Line (MRT Tunnel)||Pass||Pass||Pass|
|North East Line (MRT Tunnel)||Pass||Pass||Pass|
*For new tunnels where deployment work was committed by mobile operators after 26 January 2012, a higher standard of >99% applies.
Note: End users' individual experience may differ due to various reasons such as model of handset used, handset settings, number of users in the vicinity, etc. The tunnel service coverage results are based on IDA's coverage performance surveys.
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