On August 30, China Mobile officially released the first domestic reconfigurable 5G radio frequency transceiver chip "Pofeng 8676". The chip can be widely used commercially in 5G network core equipment such as cloud base stations, pico base stations, and home base stations. Controllability.
In 2021, China Mobile will establish a chip R&D enterprise joint laboratory to carry out the research and development of the "Pofeng 8676" reconfigurable 5G RF transceiver chip, which runs through the definition of chip specifications, front-end and back-end design, The whole process of simulation verification, performance commissioning and machine integration.According to reports, China Mobile has given full play to the advantages of operators in deep understanding of networks and equipment. Based on the self-developed industry-leading system radio frequency dual-stage linkage simulation platform, "tailor-made" chip specifications have been developed, laying an important foundation for the large-scale application of chips.
In order to adapt to the application requirements of multi-band, multi-mode, and multi-station, the relevant team of China Mobile Research Institute innovatively proposed a reconfigurable technical architecture, which supports flexible matching of important specification parameters such as signal bandwidth, spurious suppression frequency, and depth. Module algorithms such as pre-distortion and peak clipping can be flexibly adjusted, and incremental functions such as baseband shaping filter and equalization filter can be flexibly loaded. Using these architecture optimizations and functional reorganizations, system integration innovations make up for single-point performance bottlenecks, creating an international advanced level , At the same time, it is a product with differentiated competitive advantages such as low cost, low power consumption, and multi-function.
At the same time, in the research and development of the "Pofeng 8676" chip, China Mobile joined hands with equipment manufacturers and chip design companies to upgrade the traditional serial R&D model of chip design, machine integration, and network applications to Parallel mode shortens the time from chip to machine adaptation by nearly half; solves the core industry problem of "do not want to use or dare to use" on the application side, and greatly improves the effectiveness of key short-board chip research,accelerates machine integration Iterate with network applications to form a closed-loop research system of "core selection, research, and core use".
At present, the "Pofeng 8676" chip has been successfully integrated in the complete machine equipment of many leading partners, and will be used in the next stage of 5G low-cost, high-controllable network equipment represented by cloud base stations, pico base stations, and home stations. It plays an important role in the construction of high-speed commercial network.
