Liu Tong, born in 1980s, is currently the technical director of wireless network optimization center of China Telecom Anhui Company. He has worked in the communication industry for 20 years, and now he is a famous "old network excellent" in the industry.
National model worker, technical expert of central enterprises, youth post expert of central enterprises, May 1st Labor Medal of Anhui Province ... He has many honors, and his work is fully arranged every day.
In the eyes of customers, he is the "general manager"; In the eyes of colleagues, he is "Brother Tong", not only because his name is Liu Tong, but also because he is a technical expert.
"National Model Worker" Liu Tong. Photo courtesy of China Telecom Anhui Company
The famous "love thinking"
With the advent of the 5G era, the digital transformation of the industry has been accelerated in an all-round way, and Liu Tong's network optimization team is facing many problems that need to be solved urgently. "Our task is to make the cell phone signal better and get online faster. Whether the network is good or not, the user has the final say, and the user experience is not the best, only better, so the network optimization is sloppy. " Liu Tong said.
Since joining the work, Liu Tong has been famous for his "love of thinking".
A person, holding a computer and plugging in many devices, is running back and forth in the streets. This is a daily road test for excellent network personnel.
"We must innovate our working methods!" Liu Tong made up his mind to think about whether it can be analyzed by big data. Like Chinese medicine, the network can cure the disease before it affects the user's use, and it becomes invisible before it is used.
In order to overcome this problem, he did not take the traditional old road, but found another way, starting from the technical level, analyzed and monitored the wireless network in advance, and changed the working mode that relied mainly on manual road test in the past.
After nearly two years of technical research, Liu Tong and his team developed a system consisting of four modules: abnormal user screening, abnormal cell analysis, scale DT test and scale CQT diagnosis, which can find hidden network problems from clues and automatically start the network optimization process before users perceive network problems.
In the eyes of colleagues, Liu Tong (second from left) is used to being called "Brother Tong". Photo courtesy of China Telecom Anhui Company
"technical know-how" in the eyes of colleagues
From 2G to 5G, the times are changing and the technology is changing, but Liu Tong's persistent drilling strength remains unchanged.
"On the front line, I can best understand where the problem lies and what problems need to be solved most." Liu Tong said, "There is no groping in the front line, and it can only be a flashy paper talk."
For 20 years, in the exchange room, Liu Tong stayed up all night to ensure the stable operation of the equipment; At the communication base station, Liu braved the scorching sun and snow to solve the equipment failure; In the wild in Shan Ye, Liu Tong bumped for hundreds of miles to take a road test. ...
"Network construction is to solve problems, network maintenance is to solve problems, and network optimization is to solve problems. It's like planting a tree on a barren hill. Network optimization engineers are responsible for ensuring that it thrives. " Yan Guozhong, general manager of China Telecom Anhui Wireless Network Optimization Center, said vividly.
Especially in the communication industry, with the iterative updating of technology, if it can't keep up in time, it will directly affect the user experience.
A large number of new technologies and equipment are adopted in 5G base stations, which leads to a significant increase in equipment power consumption, almost 3.5 times that of 4G base stations. How to reduce the energy consumption of 5G base stations? A new topic is placed in front of Liu Tong.
Under the leadership of Liu Tong, the self-developed intelligent energy-saving platform for base stations came into being. "The energy-saving effect can reach 20%." When this matter was mentioned, Tang Jie, head of the network operation and maintenance department of China Telecom Anhui Company, could not help but give a thumbs up.
So, how can we ensure the online experience on the high-speed rail? Liu Tong started to "toss" again. In frequent road tests, he found that the short instantaneous time of high-speed rail passing through the base station and the large number of users are the specific reasons for the sharp increase in base station traffic. Therefore, Liu Tong took the lead in putting forward the "second" instantaneous load analysis method of high-speed rail scene, revealing the business rules of high-speed rail scene from the micro level, providing technical guidance for the planning and optimization of high-speed rail mobile network communication base stations in the province, and truly ensuring that the "high-speed rail network does not drop".
Pay attention to persistence and deep cultivation ... Liu Tong's road to innovation is getting wider and wider. From 2065438 to 2009, Liu Tong took the lead in operating the 5G talent workstation, mobilized the backbone of experts in the province, tackled key problems in 5G engineering technology, and exported more than 30 innovative achievements, filling many gaps in the construction, maintenance and optimization of 5G networks.
From network construction, network operation and maintenance, network optimization to big data operation support, his innovations are making network optimization smarter and operation simpler.
The "fanaticism" of business learning
The rapid development of communication technology also puts forward higher requirements for network optimization. In order to adapt to this change, Liu Tong integrated learning into his life.
On weekdays, whether it is a training meeting or a line test, Liu Tong always stays with a black backpack on his back. "It looks more like a student on your back." Liu Tong joked that it's not information, nor a book. As long as he has time, he is studying innovative transformation projects. He is not only diligent in thinking, but also good at thinking.
After years of study and study, Liu Tong has become an expert in wireless network optimization.
Spring Festival travel rush Traffic Big Data Forecast Support Network accurately expands, saving10 million yuan in construction investment every year; "Network follows people" big data intelligent planning reduces the planning workload from an average of 7 weeks to 2 weeks; Innovative cooperation between 4G and wifi has saved a lot of expansion costs for enterprises. ...
In addition, the innovative operation method of mobile interference source investigation led by Liu Tong, the "second" instantaneous load analysis method of high-speed rail scene, and the intelligent energy-saving scheme of base station based on AI technology have all been applied in practice.
"Reliable" is synonymous with his colleagues. Under his leadership, a batch of newly hired technology "Xiaobai" was gradually cultivated into a technology "big brother".
Relying on the model worker innovation studio, Liu Tong took the lead in setting up a wireless team in the province, held more than 100 trainings and technical lectures on 4G and 5G, covering thousands of employees in the province, and created an innovative wireless talent team with 4G/5G as the core technology, which provided talent guarantee for creating high-quality wireless network products.
In 20 16, the model worker innovation studio led by Liu Tong was awarded the title of "Anhui Model Worker Innovation Studio" by Anhui Federation of Trade Unions. In 20 19, this model worker innovation studio was awarded the title of "China Yangtze River Delta Model Worker Craftsman Innovation Studio" by Shanghai, Jiangsu, Zhejiang and Anhui Federation of Trade Unions.
Liu Tong is unusual.
In recent years, he led his team to obtain 6 national invention patents, 6 national software copyrights, 6 scientific and technological progress awards of China Telecom Group, 52 innovation/micro-innovation achievement awards, and published more than 20 papers in national core journals.