Gsm Network Interference Analysis Method Study

Interference is one of the key factors affecting the quality of the network, callquality, dropped calls, switching congestion have a significant impact. One of theimportant task of how to reduce or eliminate the interference network planning andoptimization. In recent years, with the popularity of the personal mobile phone, users ofexplosive growth, as mainstream second-generation mobile communication systemGSM network carrying capacity in the face of unprecedented challenges in the largecities, interference problems affecting wireless communication network capacity is oneof the most critical factors and network quality. How to reduce the interference in thenetwork to enhance network capacity and quality has become an important issue thatmust be addressed in the operator’s network operation and maintenance work. ChinaMobile, the subject of this has a huge user base, covering the high density area of theGSM network is more important. Reasonable and efficient interference problemanalysis and solution, important needs in the day-to-day network operation andmaintenance work, efficient method to quickly analyze the cause of the disturbance, andguidance to optimize network interference.Of this thesis is the response to these problems, the performance characteristics ofthe study all kinds of interference to the remote analysis provide accurate judgmentsbased on, for example, traffic statistics analysis, spectrum scanning analysis. Thecombination of space, time and other characteristics analysis, combined with thenetwork user behavior of interference to enhance the influence of the type can be moreaccurate differential interference. Several common interference such as CDMAinterference, intermodulation interference repeater interference with adjacent channelinterference analysis, summary of the types of interference to determine methods andprocessing methods. Provide a theoretical basis for the interference problem processing.Mainly as follows:1. For the main technical characteristics of the GSM network, analyze the impact of theinterference problems of wireless communication systems. Several GSM system, anti-jamming means. 2. Detailed analysis of several types of common type of interference in GSM networks,causes, effects, and characterization aspects of the analysis for each type ofinterference. After the analysis to identify the main features of various types of interferenceanalysis and lay the foundation for the back of the interference problem.3. For CDMA interference, passive intermodulation interference, repeater interference with adjacent channel interference, and other network outside interference analysis given theinterference criteria and approach. Given for typical problems handling the case.4. According to the characteristics of the interference problem, interference analysis, investigation procedures, and operating methods summary for the operation of theactual project.