5G/6G era timing technology empowers high-quality development of communication networks

　　Communication technology is iteratively upgrading from 5G to 6G, achieving breakthroughs in network speed, connection scale, and latency performance. New scenarios such as terahertz communication, holographic interaction, and ultra large scale Internet of Things are gradually being implemented. High precision time synchronization, as the "invisible cornerstone" of communication networks, is the core support for ensuring stable signal transmission, efficient business collaboration, and optimal network performance. Zhejiang Saisi Electronic Technology Co., Ltd. is deeply involved in the time-frequency field, relying on mature timing technology and industry experience to build a high-precision, high reliability, and high security time synchronization system for 5G/6G networks, fully empowering the high-quality development of communication networks.

　　The strict requirements of 5G/6G evolution for timing technology

　　Compared to traditional communication networks, 5G/6G achieves a significant improvement in time synchronization accuracy. The synchronization accuracy between base stations in the 4G era is microseconds, while the 5G TDD slot switching, multi base station cooperative transmission, millimeter wave beam shaping and other scenarios require that the synchronization error be controlled within 100 nanoseconds.

　　Entering the 6G era, applications such as terahertz frequency communication, sub millisecond ultra-low latency services, and ultra large scale collaborative networking have further pushed the demand for synchronization accuracy to sub nanoseconds or even picoseconds. A small time deviation can directly lead to signal interference, data packet loss, and base station switching failure, affecting network throughput and user experience. It can be seen that timing accuracy has become a key factor restricting the performance of 5G/6G networks.

　　The core value of timing technology empowering high-quality development of 5G/6G networks

　　1. Ensure stable signal transmission and improve network throughput

　　High precision timing technology can achieve precise and unified timing of all network devices, ensuring strict synchronization of signal transmission and reception between base stations, base stations and core networks, and terminals and networks. In the application of 5G carrier aggregation, distributed MIMO and other technologies, precise time synchronization can avoid signal phase shift and interference, improve spectrum utilization efficiency, and significantly enhance network throughput and coverage capabilities. The 6G terahertz frequency band is extremely sensitive to frequency deviation, and stable timing can suppress signal distortion, ensuring the continuity and reliability of high-speed data transmission.

　　2. Support the implementation of ultra-low latency and high reliability services

　　The 5G URLLC scenario needs to meet end-to-end millisecond level latency and high reliability requirements, and 6G will push latency metrics to sub millisecond levels. Time synchronization technology ensures accurate data transmission timing and efficient scheduling by building an end-to-end precise time synchronization link, supporting the stable operation of time sensitive key businesses such as industrial control, remote healthcare, and autonomous driving, and achieving real-time response to business instructions and precise coordination of actions.

　　3. Optimize base station collaboration and handover experience

　　The density of 5G/6G network base stations has significantly increased, and frequent switching of base stations in high-speed mobile scenarios requires extremely high timing synchronization. High precision timing can ensure consistent time reference between adjacent base stations, reduce signaling interaction delay and packet loss rate during the switching process, achieve seamless switching, and improve the continuity and stability of user communication, video, and data services. At the same time, when multiple base stations cooperate in networking, a unified time reference can optimize the collaborative scheduling strategy and improve the overall resource utilization efficiency of the network.

　　4. Strengthen the foundation of network security and operation and maintenance management

　　Accurate time synchronization provides a unified timestamp for network security protection, helping to accurately trace and locate abnormal traffic, illegal access, and malicious attacks, and improving the efficiency of handling network security incidents. In addition, the consistent timing of all network devices can ensure the time consistency of operation and maintenance logs, fault alarms, and performance data, making it easy for operation and maintenance personnel to quickly troubleshoot faults, analyze network operation status, reduce operation and maintenance complexity, and improve network operation and maintenance management efficiency.

　　The core advantages of adapting Saisi timing technology to 5G/6G networks

　　The Saisi timing solution has multiple core advantages for the high-precision, high stability, and high compatibility timing requirements of 5G/6G networks. Adopting a multi-level time traceability architecture, integrating high-precision clock sources and reliable timekeeping mechanisms, stable timekeeping can be maintained even if external time signals fluctuate or interrupt, ensuring uninterrupted network timing.

　　It supports mainstream high-precision time service protocols, has high hardware timestamp accuracy, and can be compatible with 5G/6G core networks, base stations, edge computing nodes and other devices. It adapts to different networking architectures and transmission media, and is flexible and compatible. At the same time, it has a comprehensive security protection mechanism that supports message verification, identity authentication, and permission control to resist illegal timing attacks and time tampering risks, ensuring the security and reliability of the timing system.

　　Equipped with full lifecycle operation and maintenance management capabilities, it can monitor the real-time operation status, synchronization accuracy, and link quality of timing equipment, automatically alert for abnormal situations, assist operation and maintenance personnel in quickly handling, ensure the long-term stable operation of the timing system, and adapt to the large-scale, high-density, and highly reliable deployment needs of 5G/6G networks.

　　Every performance leap in communication networks from 5G to 6G relies on the precise support of timing technology. A high-precision, highly reliable, and highly secure timing system is the core foundation for ensuring stable 5G/6G network signals, efficient business operations, and high-quality user experience. It is also a key prerequisite for supporting the implementation of new scenarios such as the future Internet of Things and digital twins.

　　Zhejiang Saisi Electronics will continue to deepen its innovation in time-frequency synchronization technology, continuously optimize timing solutions adapted to 5G/6G scenarios, and use professional technology and high-quality services to help the communication industry build a more efficient, stable, and secure network system, promoting high-quality development of the 5G/6G industry.