Nokia Siemens Networks has signed a new deal with China Mobile to deploy TD-LTE in three cities by the end of 2012.

The deal comes as part of the operator’s preparations for a pre-commercial TD-LTE network trial, which is to span 13 cities by the end of the year and involves the deployment of 20,000 base stations.

NSN has been charged with rolling out its TD-LTE 8-pipe radio and Flexi Multiradio Base Stations, as well asassisting China Mobile with its Circuit Switched Fallback technology testing.

NSN is one of a number of vendors involved in China’s Mobile’s : rival Alcatel-Lucent, for example, pledged to deploy 3,000 base stations earlier this month.

The news is the latest in an increasingly long line of deals NSN is signing in the Asia-Pacific region.

On Tuesday, the vendor announced a deal with Indonesia’s leading mobile operator for GSM and 3G services.

Earlier this month, NSN revealed that sales is Asia-Pacific increased by 29 percent in the last quarter as the company recorded an overall rise in revenues.