China Mobile HK, known initially as China Telecom (Hong Kong) Limited, was incorporated in 1997 following the dissolution of China Telecommunications Corporation in 1999. The company is a major player in the telecommunications sector in Hong Kong, providing mobile voice and multimedia services. The ultimate controlling shareholder of China Mobile HK is China Mobile Communications Group Co., Ltd., a state-owned enterprise in China. The company is listed on the Hong Kong Stock Exchange, signifying its public ownership structure. In 2008, China Mobile HK expanded its services to include internet provision after acquiring China Tietong, a fixed-line telecom and the third-largest broadband ISP in China at the time. The company operates a GSM network that spans all 31 provinces, autonomous regions, and directly administered municipalities in Mainland China, including Hong Kong. China Mobile HK has also demonstrated its commitment to technological advancement with its development of 3G and 4G networks.
Alias
China Mobile Hong Kong Company Limited, CMHK
Country
Hong Kong
Type
Mobile Network Operator
Ownership
China Mobile
China Mobile

CMHK 4G Network

Having won 2600 MHz band FDD spectrum in 2009, in February 2012 China Mobile Hong Kong won the SAR’s 2330 to 2360 MHz TDD band to deploy integrated dual FDD and TDD LTE services in partnership with ZTE and Ericsson. After activating an FDD-only B7 (2600 MHz) network in April, CMHK launched the world's first FDD-TDD network in December 2012 using B7 (2600 MHz) and B40 (2300 MHz) bands. Limited deployments of B1 (2100 MHz) are present within HK's MTR rail system.

Through its partnership with Huawei, the network was upgraded to 4.5G LTE-A Pro in November 2016, deploying 2C CA, 4X4 MIMO and 256 QAM, to achieve peak throughput to over 580 Mbps. In August, CMHK became world’s first operator to launch commercial 2.3 GHz TDD 128T128R Massive MIMO technology to improve network capacity and coverage in densely-populated areas.

NB-IoT was commercially demonstrated September 2017 with full deployment underway. It is expected that demonstration and pre-commercial deployment has been implemented over B3 (1800 MHz), however noting CMHK's recommendation of 900 MHz spectrum reassignment to permit a crucial B8 (900 MHz) deployment.

4G Frequency Bands
Network Frequency Band Max. Channel Bandwidth Status
B1 (2100 MHz)
5
Active
B3 (1800 MHz)
10
Active
B7 (2600 MHz)
20
Active
B40 (2300 MHz)
20
Active
Date Event Subtype
Launch of 4G Network
Launch

CMHK 5G Network

China Mobile HK successfully completed end-to-end 5G testing in August 2018 using n20 (800 MHz) and n257 (28 GHz) bands. The company launched mid-band 5G in November 2020, adding low-band 5G in mid 2022.

Network Frequency Band Max. Channel Bandwidth Status
n28 (700 MHz)
10
Active
n78 (3500 MHz)
60
Active
n79 (4700 MHz)
40
Active
Date Event Subtype
Launch of 5G Network
Launch