ITRI ​​and MediaTek have jointly developed 5G communication technology. The two parties have cooperated since 2015, combining the advantages of innovative technology research and development and global chip design leadership, from the most basic technology research and development, 5G test field and key standard patents. There are important breakthroughs in the layout.
At this stage, the two companies have developed LWA (LTE/Wi-Fi Link AggregaTIon) technology to improve network transmission bandwidth, 38/39 GHz millimeter wave high frequency band access technology that can solve high frequency transmission restrictions, and support small base station transmission. MUST(MulTI-User SuperposiTIon Transmission) technology.
ITRI ​​pointed out that in the actual measurement of 5G communication technology with MediaTek, the network spectrum efficiency of 10% to 40% can be improved compared with 4G, and it can be improved by nearly 140% in certain circumstances. Not only does Taiwan represent the independent research and development capabilities of Taiwan, but also the goal of commercialization of 5G networks in 2020.
"The ITRI has a very close working relationship with MediaTek. At the Mobile World Congress (MWC) in 2016, the two parties have jointly demonstrated the world's first LWA system, leading the world. The networking speed will be increased to 700 Mbps, which will link the Taiwanese manufacturers to form an independent industrial ecological chain, paving the way for 5G technology research and development in advance; in the same year, they will jointly develop specifications to jointly complete the world's first 38/39GHz millimeter wave high frequency band access prototype. The system can support mobile transmission above 100 Km/hr and Gbps in the outdoor, and jointly develop and lay out key technologies such as phase array antenna and beam tracking. In 2017, we will cooperate again to release the world's first LTE combined with 4/38/39GHz millimeter wave 4G. The +5G dual-mode small base station prototype system breaks through the bottleneck of high-band access technology and demonstrates the R&D strength of 5G independent technology."
Zhou Yujun, senior deputy general manager and chief technology officer of MediaTek, said: "ITRI is an important partner in the research and development of Lianfa Technology. It is established in the LWA and 38/39 GHz millimeter wave high frequency band access technology research and development process. Good cooperation and tacit understanding, this year is more invested in 5G MUST system development. MediaTek is the world's first company to apply multi-user interference cancellation technology to mobile phone receivers, using ITRI to provide a test environment that supports MUST technology, MediaTek The technology completed the verification of this technology in the wireless environment, which laid a solid foundation for its commercial use in 5G systems."
In the post-4G era, ITRI and MediaTek have developed LWA technology to solve the problem of broadband transmission demand, without increasing the operator's operation and deployment costs, which will enable mobile handsets to use LTE simultaneously. Wi-Fi transmits data, improves network transmission bandwidth and performance, and facilitates early interoperability testing with Chunghwa Telecom. It provides the world's first "LWA 4G + Wi-Fi Web surfing service" and becomes the world's first commercial-to-LWA system. Operator.
In order to solve the 5G high-frequency transmission problem, ITRI and MediaTek jointly focus on the internationally recognized 38/39GHz frequency band, investing in R&D early, and pre-arranging Beam-forming, Beam-tracking, and antenna. Array, phase-locked loop and other technologies, the peak transmission rate can reach 1Gbps, support more than 100Km / hr mobile transmission and 100 ~ 200 meters coverage, the two sides have demonstrated the world's first LTE combined 38/39GHz millimeter wave 5G small base station at the beginning of this year The prototype system, for the 5G research and development reserve kinetic energy, entered the international leading group.
At the critical moment before the establishment of the 5G standard in 2018, the two parties jointly invested in the development of 5G MUST technology, achieving functions such as non-orthogonal multiple access (NOMA), multi-user interference cancellation (MUIC) and new air interface. The provided small base station MUST scheduling technology and field measurement environment have successfully completed the functional test and performance field test with MediaTek mobile phone. In the actual measurement, the 4G average can improve the network spectrum efficiency by 10~40%, and is specific. Up to 140% improvement in the environment.
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