The advent of 5G mobile Internet connectivity will see csl making the everyday lives of customers smarter and healthier, as well as more convenient and enjoyable.

HKT has acquired spectrum in the 3.3GHz, 3.5GHz, 4.9GHz and 26/28GHz frequency bands, a capability that will combine with our extensive infrastructure to get the very best out of 5G technology – all to the benefit of csl customers.

Date of acquisition
in 2019
Band Frequency acquired
March 27
High-band spectrum 26/28GHz
400MHz
October 14
3.5GHz
50MHz
October 23
Mid-band spectrum
(golden band spectrum)
4.9GHz
40MHz
November 6
3.3GHz
30MHz

5G characteristics

Ultra high speed

20 times faster than maximum 4G download speeds.

Massive connectivity

The number of smart devices that can be connected simultaneously is more than 100 times greater than 4G can achieve.

Ultra-low latency

Latency of less than one-thousandth of a second.

Three major 5G frequency bands

Global and Hong Kong 5G spectrums are broadly divided into three different frequency bands – high, medium and low. Each range comes with completely different characteristics and advantages.

High-band spectrum
28GHz

Advantages

UHF broadband for ultra-high transmission speed.

Deployment in the environment

This is suitable for indoor and high-density environments, and provides ultra high-speed connectivity for multiple users simultaneously.

Mid-band spectrum
3.3GHz, 3.5GHz
and 4.9GHz

Advantages

Considered 5G’s “golden band spectrum”, mid-band provides high speeds and wide coverage.

Deployment in the environment

5G service will be rolled out to many Hong Kong districts.

Low-band spectrum
2GHz and below

Advantages

Very high penetrating signal power to suit Hong Kong’s proliferation of high-rise buildings.

Deployment in the environment

Use high and medium frequencies to maximize 5G coverage.

Source: Information and figures on 5G are referenced from the documents listed by GSM Association. More details can be found in https://www.gsma.com

Some figures quoted are theoretical value, actual performance may vary due to location, spectrum allocated, network resource availability and the compatible handset’s capability, etc.

5G network coverage

csl’s truly genuine 5G network now covers outdoor areas in Central, Sheung Wan, Causeway Bay, Tsim Sha Tsui and Mong Kok, as well as inside Hong Kong International Airport and major shopping malls.

csl commands 3.3GHz, 3.5GHz and 4.9GHz 5G sections of the golden spectrum band, so we do not use the existing 4G band for 5G service. This means the quality of the overall 4G user experience will not be affected in the moment.

Customers simply need to use a 5G mobile device model compatible with 4.9GHz in order to reap the extraordinary speed and other benefits of csl’s 5G network at locations such as the Hong Kong Science Park and certain areas of Tai Po and Ma On Shan.

csl will continue to extend 5G coverage throughout Hong Kong and the areas along the MTR route in order to make the many wonders of this amazing new mobile broadband technology available to customers.