Summary of technical work of Unicom

Work unit: China Unicom Zhumadian Branch

Department: Mobile Network Co., Ltd. Zhumadian Branch Network Company Network Optimization Center

Team: NetEase class daily optimization ZTE 3g group members

Working hours: 2010-01-01 to 2010-7-15

Responsibilities: Engage in specific work on 3g.

Brief introduction to the report: According to the requirements of Article 14 (2) of the “Measures for the Debriefing of Cadres of China Unicom Zhumadian Branch” in 2019, the requirements for employee debriefing are divided into the following three parts: First, the outline formula describes the individual to complete the work project and work. Results; second, problems in the work; third, measures and suggestions to solve the problems.

From January 15th to March 26th, 2019, the provincial company carried out the "23g interoperability theme optimization", I began to follow the engineers. During the study period, I carefully studied the “China Unicom 2/3g Interoperability Sub-Scenario Parameter Setting Guide” issued by the provincial company. This is the first time I participated in the specific 3G work, only to discover the wcdma theory and practical work of the previous study. It’s really hard to combine it. It seems to be understood before I learned it, but in actual work, I still don’t know. The only way is to learn by doing, and thinking while doing it, I read it repeatedly and word by word. The guide of the page, trying to combine work experience with theoretical guidance, I summed up a set of learning methods, simply saying "for the guidance book, ask three questions in one sentence", due to serious work, actively ask questions, seriously study technology Positive thinking, I gradually understood the general content of "23g interoperability" little by little, and began to modify some wireless parameters under the guidance of engineers.

From March 1st to April 30th, 2019, I went to Xinxiang to follow the work of the ZTE 3G network optimization team. This is the longest time I have traveled since I joined the work. It lasts for 2 months, the study time is sufficient, and the time schedule is relatively free. There are no other interference factors, and I can give full play to a valuable opportunity for active learning. During the study period, I struggled every second, day and night, and I went to work at three or four in the night. I continued to study and study in the daytime. I went to the unit to study hard and ask questions. I went back to the hotel at night and learned the night. Learning mobile communication principles and wcdma principles and 3gpp technical specifications, research signaling, learning to master vba programming in word, excle documents, skilled production of various wcdma reports, wcdmarf antenna feed, dt road test, single station verification, learning to use ZTE Network management system, front-end back-end software, etc., and wrote a series of papers based on learning. During my studies in Xinxiang, I was seriously ill because of throat and bronchial inflammation. Later, my foot was severely sprained. Later, because of staying up late for a long time, my waist was deficient in potassium, and my mother was hospitalized in Zhumadian for severe inflammation of the lungs. Dangerous, the child has a slight hand, foot and mouth disease, I endure the pain and pressure of physical and mental, and insisted until the end of the study, I thought I must not live up to the cultivation of Unicom.

Beginning on May 4, 2019, in order to cooperate with the 3G number of counties in the World Telecommunications Day on May 17, the test of 3g in each county was started, mainly to evaluate and improve 23g interoperability. I have to work hard all my working hours. Thanks to my work experience in Xinxiang, I feel more confident in my work. I carefully test and analyze, constantly experiment with various wireless parameters, and work under basically independent conditions, and it is progressing rapidly. Under the coordination of Director Li, with the support of Baifan and the cooperation of Ericsson and Hegong, the 23g interoperability problem existing in the 2g Ericsson regional network of Zhumadian was solved, which greatly improved the interoperability of 23g and for the future. 23g interoperability processing has accumulated a certain amount of experience. I used the vba programming method I learned in Xinxiang to write a large number of ZTE 3G network optimization tools, which greatly facilitated daily work.

Starting from May 17, 2019, the "2019 Network Optimization Service Project" was launched. I followed the ZTE 3G group to study. The specific work is the handling of daily complaints. At the same time, under the guidance of engineers, I learned to use ZTE background software to analyze road test data. In order to better and more professionally carry out in-depth mining of complaint handling and road test data, I learned to master mapbasic programming in mapinfo, and use the database technology to decompose the original road test data and judge the coverage. , pilot pollution, weak coverage, etc., and process the analysis results to display the geographic graphic display in mapinfo. Moreover, it can be searched on multiple maps according to latitude and longitude or place name, and the nearest 2g and 3g base stations are displayed.

However, at present, there is a lack of more technical materials and in-depth professional training guidance and exchange discussions. The progress of wcdma is slow, the road test analysis ability is poor, and the current understanding and utilization of network optimization means is limited to the days of coverage optimization. Feed adjustment, and deeper integrated processing such as: base station alarm check and processing, capacity optimization, service quality optimization, data service related optimization, handover optimization, neighbor optimization, 2g3g with the same coverage In-depth research on optimization, simulation and simulation verification, boundary optimization, interference optimization technology , power optimization, code resource optimization, and use of sweeper test, etc. The elimination of the excellent fault has not been mastered. I hope that in the course of the second half of the work, I will go deep into the work and research in the above aspects.

I am fully aware that "the mobile communication system is a rapidly developing and rapidly evolving giant technology system. The knowledge fields involved are infinite and in-depth. It requires a great deal of determination and a lot of time and effort to learn, so that the work can be done really well. ”

I am very pleased to be able to work together with the elite colleagues here under the guidance of Dr. Li Feng and Mr. Yan, under the guidance of Bai Yun, a network expert, to work together to do a good job.

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