Xing'An Mobile GSM Network Optimization Research And Application

With the rapid development of mobile communication technology, GSM communication system as a second-generation mobile communication system in the world by large-scale promotion. China GSM communications network commercially available since 1993, the development by leaps and bounds. As of the end of February 2010, the total number of mobile users in China reached 533 million, network capacity and scale of sustained and rapid growth. But people on the network a higher quality of service requirements, the focus of mobile communications has entered the network by the network construction phase of the adjustment and optimization. Through a systematic network optimization project can take advantage of existing network equipment, resources and capacity,Maximize the network's service quality, and efficiency.With the GSM mobile communications network gradually improved, and effective carrying capacity of their existing network resources, while ensuring the steady improvement in network quality, it is related to the business to ensure healthy development and growth. The domestic mobile communications market, the "three pillars" situation has taken shape, has started all-round competition. To enable the network to achieve the best operating conditions, to provide users with high-quality mobile communications services, has become the various mobile network operators focus. Reasonable allocation of network resources and optimize overall network service capacity and improve the quality of mobile network optimization has become a core sector.This paper proposed a thesis of the background and significance, and the GSM mobile communications systems, the history was reviewed, and a brief description of the GSM communication system components and the main interface知识, so that we have a mobile communication comprehensive understanding.In the following content, described mobile network optimization of field test evaluation norms, and from test sites and the number of types of testing requirements, test the network object, the test cycle and testing methods and requirements so made elaborate.With the network optimization work, the current assessment for the KPI indicators of network quality has reached a good level of customer perception of network quality, but did not achieve the desired level. Some KPI indicators can not objectively reflect the customer perception, which leads to customer perception KPI optimization and upgrading of the inconsistency. 2008 customer satisfaction survey, the global network through customer satisfaction declined, they for network coverage, voice quality, dropped calls attention to the highest. High-end customers as an important part of revenue, should cause us to focus on their perception.2008 customer survey results show that network quality is still mobile operator customers choose the most important factor, with 35.2%of the customer network effect. Therefore, from close to the customer perception point of view, to further optimize the network to improve network quality is still the focus.Application-aware network quality assessment system, the user is closely related with all the complaints handling assessment (CPI), the tripartite test simulated field test user perception (SPI), an important group where customers and VIP users reflect the key areas of network performance (VPI) combined with overall network performance indicators (KPI), round, multi-dimensional network optimization, effectively enhance the network quality. Historical data by comparing the above four points are weighted distribution of PI scores three companies on the mobile trends and consumer satisfaction survey scores in general are highly consistent withThat the perception of quality assessment system based network to some extent, from the network level simulation of the degree of customer satisfaction, and then guide the network optimization work smoothly. Illustrates the customer perception of network quality-oriented evaluation system work effectively guide the network optimization is the basis for effective optimization.To ensure network quality, while improving efficiency in the use of wireless resources, thereby improving overall efficiency enterprises, this paper presents the practical application of several techniques, such as frequency multiplexing to improve radio spectrum efficiency of resource use, improve the wireless base-band frequency hopping Network anti-interference ability to ensure the network quality, dynamic semi-rate technology effectively absorb it works, it works balance, reduce congestion, save frequency resources, and other hardware set to play a significant role, and made in the optimization of the content needs to focus.Focus of this paper is the fourth chapter, that some of the practical application of network optimization. Improve network quality and income in the correlation section, the summary of the work based on the actual data shows the network quality to enhance the success rate can improve the response, thereby enhancing the effective proportion of telephone traffic and increase user call duration, increased voice revenues from telephone traffic and network is positively related to relationship quality, network quality to enhance network benefits will be improved, also shows that the network is to enhance the quality of the underlying economic benefit. According to call the relationship between the length and call quality estimates can be directly optimized the effective increase of about 3.5% of telephone traffic.That would be indirectly created network optimization network resource efficiency.In the half-rate optimization to enhance cost-effectiveness of a years, also through specific telephone traffic data summarized by implementing dynamic semi-rate technology, can effectively reduce the loss of telephone traffic to prevent congestion, improve the paging success rate, improve network access performance, ensure network quality, increase user awareness, improve resource efficiency.EDGE performance in the data and create efficiency in the adoption of detailed basic data, summarize and analyze voice and data obtained through the optimization of resource allocation, increased telephone traffic data, while also raising the voice traffic, to improve efficiency in the use of wireless resources to achieve a win-win situation, improve the economic efficiency of enterprises.Unbalanced degree of optimization in the Community Benefits of Zhong, Zhi Chu rapid growth as mobile business, the story works and the limited network Resources Construction increasingly prominent contradictions, usually taken is to split up busy busy or dialogue with high Qu Yu Wu New cell division or split to the base station. But with the work carried out above, but also the emergence of new network bottlenecks, namely: the frequency of resource constraints, increased frequency reuse in degrees, frequency planning more difficult; part of the expansion of high-Call Community Resources has reached the limit (12 per small division Carrier) However, if the user still can not meet the service demand; hotspot base station construction more difficult,Existing base station resource utilization is not high; the existing part of the cell carrying telephone traffic higher, higher resource utilization, load event type sudden high impact if services are weak. To address these problems, take cell imbalance degree is optimized to achieve on the current network load cell, then a balanced service, so that the existing network services be reasonable and effective if the absorption. Achieved remarkable result of optimization.In addition, through years of providing communications support for major holidays, work, summed up a set of major holidays, resource scheduling strategy, to split up busy busy, emergency expansion, semi-open dynamic rate, traffic equilibrium optimization, launch vehicles, and many other means of emergency communication, Call to meet the sudden demand, to ensure smooth site traffic, improve user perception, and gradually establish a network of mobile gold reputation, enhanced corporate social benefits. Ultimate realization of economic and social benefits of together.Finally, the future network optimization center that will gradually optimize the user perceived quality of the direction of transfer-type network, and ultimately advance before the user perception of optimization. There are a lot of work during the period need further exploration.