China Mobile and Ericsson have recently succeeded in fully verifying the UL CoMP (Uplink Coordinated Multipoint) in the TD-LTE (LTE TDD) trial network. The first vendor to introduce UL CoMP into TD-LTE globally. UL CoMP is one of the key technologies of LTE Advanced system.

China Mobile and Ericsson have recently succeeded in fully verifying the UL CoMP (Uplink Coordinated Multipoint) in the TD-LTE trial network, making Ericsson the first vendor in the world to introduce UL CoMP into TD-LTE, named LTE TDD in 3GPP standards.

The test results showed that in the cell edge areas, UL CoMP can achieve 50-100 percent uplink throughput gain.

UL CoMP is one of the key technologies of LTE Advanced system that can greatly improve network capacity and coverage, and thus improve user experience at cell edge. Through receiving and jointly processing signals from one terminal by multiple cells, UL CoMP efficiently enhances uplink signal strength and effectively suppresses interference from neighboring cells.

Implemented at the network side with no requirement on terminals or protocols, UL CoMP can be adopted by any type of LTE terminals. Since 2012, Ericsson has been cooperating with China Mobile on research and field tests to drive the further development of this technology, in TD-LTE networks in particular.

Mats H Olsson, Head of Region North East Asia said: "Ericsson is always striving to provide operators with superior network performance to support the continuous upgrading of user experience. Our achievement in leading the verification of UL CoMP in TD-LTE is another testament to our undisputed technology leadership in the field of LTE. We are proud that together with China Mobile, we have once again contributed to the further advancement of TD-LTE."

Currently, China Mobile is evaluating the network performance improvement brought by the introduction of UL CoMP to determine the priority of this technology in their future standard. Ericsson will continue to cooperate with China Mobile on further studies on how to apply UL CoMP in more scenarios.

As the technology and market leader of LTE, Ericsson has more than 120 LTE/EPC contracts on six continents. Ericsson’s share of the global LTE market represents more than 50 percent by volume. Ericsson’s well-proven LTE solutions support the world’s busiest networks. It has signed contracts with nine out of the 10 highest ranked mobile operators by revenue.

Download high-resolution photos and broadcast-quality video at

Ericsson is the world's leading provider of communications technology and services. We are enabling the Networked Society with efficient real-time solutions that allow us all to study, work and live our lives more freely, in sustainable societies around the world.

Our offering comprises services, software and infrastructure within Information and Communications Technology for telecom operators and other industries. Today more than 40 percent of the world's mobile traffic goes through Ericsson networks and we support customers’ networks servicing more than 2.5 billion subscribers.

We operate in 180 countries and employ more than 100,000 people. Founded in 1876, Ericsson is headquartered in Stockholm, Sweden. In 2011 the company’s net sales were SEK 226.9 billion (USD 35.0 billion). Ericsson is listed on NASDAQ OMX, Stockholm and NASDAQ, New York stock exchanges.

For further information, please contact

Ericsson Corporate Public & Media Relations

Phone: +46 10 719 69 92


Ericsson Investor Relations

Phone: +46 10 719 00 00