CDMA network optimization analysis should be implemented step by step

The Optimization Analysis of CDMA networks is very complex. Operators should clarify their ideas and implement them step by step, so as to lay the foundation for the implementation of network optimization in the next stage. Network Optimization analysis mainly includes determining the analysis tool and its stability, initializing the list of adjacent sets, and optimizing the list of adjacent sets.

First, determine the analysis tool and its stability. The configuration of each network is different, so there is no common parameter configuration, You need to select different analysis tools. The stability of the analysis tool means that when the mobile station is in the working status, it can register, initiate, and receive calls. The soft switch works normally and the software version remains unchanged.

Second, initialize the list of adjacent sets. The list of adjacent sets is defined as a list of pilot offsets that a mobile station may obtain for services in a certain cell. A good list of adjacent sets can minimize the failure rate of idle switching and reduce the number of reinitialization times during the pilot scan. When the mobile station is idle, if it is moved from one cell to another, it must switch to a new paging channel. When the new guide signal is more than 3 dB higher than the original guide signal, the Mobile Station will automatically complete this switching. The setting of the List of adjacent sets should follow the principles of mutual accessibility, proximity, and percentage overlapping coverage.

Third, optimize the list of adjacent sets. Searches for all possible boot frequencies based on the boot scan guide. The test is conducted continuously in the coverage area along the predefined route. Based on the test results, you can determine all the boot frequencies that can be detected at any point on the road test line. The pilot scan should be performed under load conditions) and modify the initial adjacent set list. A strong interference frequency will reduce the system performance. One improved method is to increase the space isolation of strong-pilot, and the other is to add strong-pilot to the list of adjacent sets.

Fourth, the data is collected by actual measurement. Wireless networks generally use appropriate RF propagation models, antenna models, terrain models, and other models for planning. However, all factors that affect propagation cannot be considered during planning, therefore, measurement is required after the network is built. Data collection tools include CDMA air interface tester, pilot scanner, analyzer, and GPS receiver. In addition, detailed base station logs make the analysis results more accurate.

Fifth, analyze and solve network faults. Performance analysis has two main functions: the first function is to process data and generate statistical information of various performance indicators to assess whether the system meets the minimum performance indicators; the second function is to check a single failure event and identify the cause.

1. CDMA wireless network optimization process and method
2. Common Problems and Solutions for CDMA network optimization