Network Quality

  • Over 59% of the population with 5G coverage
  • The overall average speed increased by 51.8%

In response to the exponential demand for data services, the Company began to provide 5G network services on June 30, 2020, and continued to actively deploy 5G network. By the end of 2021, TWM was providing 4G/5G dual connectivity mobile broadband services in more than 80% of Taiwan’s administrative regions, with 5G covering over 59.6% of the population. In addition to the continuous improvement of network coverage in metropolitan areas, TWM’s 5G networks has actively overcome the problems in remote areas and outlying islands. By the end of 2021, 52.3% of remote areas have been provided with 4G/5G Dual Connectivity mobile broadband services, so as to optimize the network quality of users in remote areas and outlying islands.

Two disconnection affected TWM services in 2021. Here is a description of the case and the measures taken to improve the situation:

Time Event Improvement measures
2021/05/13 Due to the power failure of Kaohsiung Xingda Power Plant, the May 13 Taiwan black out affected the signal stability of unspecified base stations in the whole Taiwan, and the failure lasted for 8 hours.
  1. This incident was affected by the power shortage in Taipower.
  2. As the base station has backup power, and the base station would reduce part of the signal load during external power failure, the main signal frequency bands are reserved to maintain uninterrupted service for a longer time.
  3. Taipower was cut off for 8 hours, but during this period, TWM had only a small number of related customer complaints, which only accounted for 3% of total customer complaints in that week.
2021/12/04 Due to the interruption of Taiwan-Mazu submarine cable of Chunghwa Telecom, the base station in Mazu area could not provide service, and the failure was as long as 7 hours.
  1. This incident was caused by the obstruction of a submarine cable between Taiwan and Mazu.
  2. There was a partial interruption of 7 hours, but because of the backup route, the impact on users was reduced. The actual number of customer complaints was very small, less than 1% of the customer complaints in that week.