On 6 August 2014, Alstom and Huawei announced a long-term evolution (LTE) fourth-generation (4G) pilot for the metro market to demonstrate the performance of a multiservice broadband radio network for communications-based train control (CBTC). Alstom has been working on LTE since the technology has been available from the telecom industry. This pilot will use Huawei's LTE technology following the memorandum of understanding (MoU) signed by the two companies in April 2014.