Xi'an, China, June 20, 2018] Recently, Huawei and Intel completed the TM9 in the FDD LTE 8 antenna transmission scenario in Huawei's Xi'an outfield Commercial terminal testing. That is, 8T8R AAU is used on the network side, and the terminal is based on Intel XMM7480 and The commercial terminal of XMM7560 chip, end-to-end (end-to-end, tube and core cooperation), performs network rate verification in TM9 mode. The test results show that the single user experience rate is 20% higher than that of TM4 mode; Compared with the traditional 2T2R under the high load scenario of the cell The capacity of LTE cell is increased by 1.65 times. The success of this joint test shows that TM9 has the conditions for large-scale commercial use on the terminal side, and there will be a large number of LTE network commercial TM9 this year, and the TM9 industry is increasingly mature.
Compared with the traditional TM4 terminal, the terminal supporting the TM9 mode can identify the user level pilot frequency, so that the beam transmitted by the base station can focus on the end user more accurately. While improving the useful signal energy, it also greatly reduces the interference between users. The same wireless propagation environment, TM9 can improve terminal data demodulation performance and user experience speed. At the same time, with the enhancement of multi antenna reception capability of terminals, TM9 technology can bring better user experience and higher cell capacity.
Yan Chenwei, vice president of Intel and general manager of Internet products and projects, said, "The results of this TM9 test show that Intel ® XMM series modem chips support multiple antennas with good performance and bring LTE gigabit user experience, which is conducive to promoting the scale development of TM9 industry. Intel looks forward to working closely with industry partners to jointly promote the full commercial use of TM9. "
Chen Chuanfei, vice president of Huawei LTE product line, said, "Multi antenna technology is an important direction for the continuous evolution of FDD technology, and TM9 is a necessary technology to maximize the performance of multi antenna. Huawei will continue to open cooperation with industry partners, jointly promote the commercial process of TM9 terminals, help operators more effectively use spectrum resources, and improve the user business experience of terminals."
