Ericsson said it is to build a trial TD-LTE network for China Mobile in Shenzhen, noting that it is also participating in interoperability tests with chip makers ST-Ericsson and Qualcomm. Alcatel-Lucent and Nokia Siemens Networks have previously announced TD-LTE partnerships with the operator: as yet there has been no word from China’s own equipment manufacturers, Huawei and ZTE.