Telecommunication Development Industry Alliance (TDIA) is the pilot strategic alliance endorsed by the Ministry of Science and Technology (MOST) on the industrial technology innovation and the member of first batch Zhongguancun standard innovation units. TDIA was founded in 2002 and now has 111 members.

Based on about twenty years of development and growth, TDIA has become a key carrier and important platform to support and promote the development of the entire TD industry. According to the needs of the market, TDIA organizes members to jointly plan technology and product development routes, participate in network testing, organize the development of common technologies, and promote the formation of an industrial environment conducive to the rapid development of TDD technology and industry.