China Unicom

China Unicom logo

Country

Company Name

China United Network Communications Group Co., Ltd.

Ownership Type

State/Government Owned

MNC

01

3G UMTS Frequency Bands

IoT Technology

Company Overview

China Unicom (中国联通) is the second largest mobile carrier and telecommunications service provider operating in the Peoples Republic of China. The state-owned enterprise was founded in 1994 (then as 中国联合通信有限公司) by the Chinese Government as a GSM operator.

The company has provided 2G GSM services over 900 and 1800 MHz since 1995, and in September 2009 launched 3G UMTS over B1 (2100 MHz). The 3G UMTS network was upgraded to HSPA+ in 2011, and DC-HSPA+ in 2013. To improve coverage in rural areas a B8 (900 MHz) 3G service was launched in late 2013.

China Unicom commercially launched LTE services in B40 (2300 MHz) and B41 (2500 MHz in March 2014, holding a total of 40 MHz of TDD spectrum. The company secured FDD licences in August 2014 and subsequently launched B3 (1800 MHz) FDD LTE.

LTE-A 3C carrier aggregation was implemented December 2015 providing in excess of 300 Mbps peak DL data rates. The company has since trialled LTE-Advanced Pro Massive MIMO technology using 20 MHz of FDD spectrum achieving peak download throughput of 697.3 Mbps, and leveraging its partnership with Ericsson launched a Gigabit LTE-A Pro network in August 2017.

China Unicom achieved national coverage with its NB-IoT network in May 2018. The company has also been experimenting with eMTC (LTE Cat-M1) and Cat-M1 VoLTE IoT technologies.

3G UMTS Network Information

Details on UMTS network deployments are shown below. Data are often incomplete due to commercial nature. Consult dossier text for further details.

Launch Date 2009-09 Status Active
UMTS BandPacket DataStatus
Active
Active
4G LTE Network Information

Details on LTE network deployments are shown below. Data are often incomplete due to commercial nature. Consult dossier text for further details.

Evolution Status Active [Launched 2014-03]
Max. MIMO Max. Modulation
Carrier Aggregation Features
LTE BandChannel WidthStatus
20 MHz Active
20 MHz Active
20 MHz Active
IoT Network - NB-IoT (LTE Cat-NB1)
Technology Status Active
Band Launch Date
IoT Network - NB-IoT (LTE Cat-NB1)
Technology Status Testing
Band Launch Date -