In all fields, everyone is inevitably exposed to papers, which is of great significance to the improvement of all educators and the overall understanding of mankind. How to write a paper to avoid stepping on thunder? The following is my analysis paper on communication network optimization, hoping to help you.

With the continuous development of communication process, the number of users is increasing, and the requirements for communication quality are getting higher and higher. Therefore, a hot issue at present is network optimization, which can reduce channel congestion through the existing communication network and realize high-quality communication. The so-called network optimization is the process of making necessary adjustments to the unreasonable parts of the network through various related technical means under the premise of fully understanding the running state of the network, so as to make the network reach the best running state. Network optimization is a long-term work. Through reasonable planning and construction, a benign network can be realized.

Keywords: network optimization process

1, overview

1. 1 The concept and significance of network optimization refers to extracting and analyzing the data in the running network, analyzing the influencing factors and uncertain factors in the network operation, updating the running state of the network through parameter optimization and real-time processing of technical means, and making the existing network run in the best state. In the process of network optimization, we can also accumulate experience in network operation management, maintenance and planning to guide future network planning and daily operation. The goal of network optimization is to improve or maintain the quality of network communication. From the network point of view, the main goal of network optimization is to improve the quality of mobile network communication service and reduce the network maintenance cost as much as possible. The quality of network communication includes many aspects, such as voice quality, reducing call drop rate, good connection rate and so on. Maintenance costs include equipment utilization, network expansion, equipment and line investment. From the perspective of operating enterprises, it is the ultimate goal of network optimization to improve user satisfaction and loyalty and maximize the interests of enterprises. In order to achieve this goal, we must complete the established tasks in communication quality, including distribution success rate, handover success rate, connection rate, channel congestion, dropped calls, communication service quality and so on. At present, the mentioned network optimization mainly focuses on wireless network optimization. Because the switching network is relatively stable, and the wireless network is very complicated and uncertain because of its environment. When optimizing the whole network, wireless network optimization has more room for improving communication quality.

Main contents of 1.2 network optimization

Network optimization is to collect and analyze the data of the existing network, find out the influencing factors of network quality, and adjust and optimize the network by various technical means, so as to make the network reach the best running state and optimize resources. The main contents of network optimization include troubleshooting equipment, improving network operation index, improving call quality, maintaining traffic balance and network balance, optimizing network resource allocation, establishing and maintaining network optimization platform and network optimization files.

2, wireless network optimization process

The process of wireless network optimization mainly includes three parts: data collection, data analysis and implementation.

2. 1 data acquisition

Compared with switching network optimization, wireless network optimization is more important and complicated than switching network optimization, which is caused by the complex and changeable wireless environment. Therefore, the improvement of wireless can often greatly improve the connection rate of the whole network. Generally speaking, the quality of wireless network is affected by the following aspects: wireless network congestion, abnormal cell or carrier frequency, weak signal, dropped call and handover caused by poor quality. Only through the collection and analysis of network data can we determine the implementation scheme of network optimization. The network data to be collected includes wireless data, business data and interference data. The collection of wireless parameters is mainly to obtain the parameters of each cell from the base station controller (BSC).

There are three main ways to collect data:

(1) Independent dedicated control channel (SDCCH channel), mainly including allocation times, success rate, congestion rate and dropped call rate.

(2) Voice channel (TCH): It mainly includes congestion rate, traffic, equipment integrity rate, dropped call rate, distribution success rate and channel traffic.

(3) Handover: number of main handover requests, success rate, handover failure rate and handover loss index.

2.2 Analysis method of network data

There are many methods to analyze network data, such as DT test, CQT test, equipment survey, frequency and coverage simulation analysis, parameter verification and analysis, service table analysis, signaling analysis and so on. Commonly used methods include signal tracking analysis, road test analysis and traffic statistical analysis. Signaling analysis can collect the signals of ABIS port and A port of all cells in the optimized area at the same time, which can solve the problems of coverage, frequency interference, wireless parameter setting and so on. Signaling analysis only needs to use the signaling instrument to track the data acquisition and analysis of port A and ABIS.

Because signaling analysis is to fully sample the signal and analyze the whole process of a call, the analysis results are comprehensive and accurate. By analyzing the data collected by interface A, we can find some problems, such as incomplete data, signaling load, fault relay, fault time slot, unbalanced traffic and so on. By analyzing the data collected by ABIS interface, we can find some problems such as uplink and downlink path loss, cell coverage, wireless interference, hidden faults and so on. Here, we need to use various graphs to analyze, including channel occupation duration graph, reception level distribution graph, frequency interference detection graph and so on. The traffic statistical analysis method is to make a traffic statistical report by using the collected wireless traffic report data and various alarm information. According to the indicators in the statistical report, the distribution and change of base station traffic, the rationality of network parameter setting, the rationality of network structure and the actual situation of various parameters are analyzed. The more important indicators here are call success rate, dropped call rate, handover success rate, traffic, channel availability rate, channel congestion rate and so on. Another method, road test analysis, is the most commonly used and practical method. Many problems can be found in the same channel test and analysis, including whether the configuration relationship between adjacent cells is reasonable, interference caused by wrong frequency point definition, hardware failure of base station, antenna connection error, wireless signal quality, wireless signal coverage, handover and so on. In the process of road test, we can get many meaningful basic information, such as topography, antenna pitch angle, user distribution group and so on, which provides valuable basis for future network expansion or network construction.

3. Key technologies of network optimization.

There are many problems in the process of network optimization, and the solution of these problems has become the key to network optimization. The most concerned issues include coverage, frequency interference and handover.

3. 1 coverage problem

Coverage problems mainly include island coverage, cross-regional coverage and discontinuous coverage. Coverage is mainly due to network planning, geographical factors and other reasons caused by improper calls in the cell. When the coverage area is too large, it may cause frequent handover and may cause greater mutual interference; When the coverage area is too small, the call drop rate is high and the handover success rate is low. The problem of island coverage can be found through test level, and the reason can be determined through actual investigation.

The reasons for island coverage may be terrain and building occlusion, base station power, antenna height and location. Cross-regional coverage is mainly because the antenna of the base station is too high or the pitch angle is too small, which leads to the coverage of the cell far from the orchard and across the areas covered by other stations. Cross-regional coverage is prone to islanding and even frequency interference; May lead to billing errors; Absorb additional traffic, causing greater negative impact. The problem of handover coverage can be found through system simulation and handover statistics. The main reason of discontinuous coverage is the engineering problem of network deployment. This needs to be adjusted in base station design and overall network planning and deployment, which is not feasible in daily maintenance.

3.2 Frequency interference problem

The frequency interference of the network may come from the interference inside the system or from the interference outside the system. The overall performance is that the network quality is not high and the indicators are unqualified.

Through simulation analysis, the source and influence range of interference can be determined, thus solving the problem of frequency interference.

3.3 Switching problem

In order to ensure the call quality and reduce the signaling traffic and load, it is necessary to reduce unnecessary handover; At the same time, handover failure and frequent handover are also problems to be solved in the handover process. The switching problem can be analyzed by statistical data and road test results.

4. Conclusion

Network optimization is a process of gradual improvement, and new problems and situations are not excluded. In the whole optimization process, we should gradually introduce multi-intelligence, less experience and manual methods to make network optimization intelligent.

refer to

Liu Haijun. Overview of GSM daily network optimization [J]. Heilongjiang Science and Technology Information, 20 1 1, 19.

[2] Shen Gang, Zhang Xinhua. Analysis of 3G Wireless Network Optimization [J]. China Broadcasting, 20 1 1, 7.

[3] Li Changhe. Optimization analysis of GSM network [J]. Science and technology communication, 20 1 1, 1 1.

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