Distributed Node B is a next generation Node B technology sold by Huawei for the purpose of enabling telecommunications operators to deploy 3G networks faster and at lower cost. ^{[1] [2] [3]} The technology is small, light weight, and features a baseband unit (BBU) and radio remote unit (RRU) that is easy to install, which can reduce costs for operators. ^{[4] [1]} Since 2006, Huawei has deployed Distributed Node B to upgrade operators' network infrastructure to 3G in Tajikistan, with mobile operator VimpelCom, ^[2] the United Arab Emirates with Etisalat, ^[5] Singapore for StarHub ^{[1] [6]} Japan with EMOBILE, ^[7] and in Sri Lanka for Bharti Airtel Lanka. ^{[8] [3]} In 2011, Distributed Node B technology was used in the launch of an LTE TDD network technology in Saudi Arabia by Huawei and Saudi Telecom Company. ^{[9] [10]}