一种LTE中基于TA的网络优化策略应用
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摘要
LTE现网中的参数配置均基于网络规划阶段的拓扑结构及仿真计算,导致部分参数的配置不适用于现网实际,进而影响网络服务质量。因此,结合实际工程项目,提出一种基于TA(Time Advanced,时间提前量)的网络优化策略,即根据在网用户接入时的TA统计调整小区半径,进而调整小区的Ncs(Number of cyclic shift,循环移位序列)配置;工程实践表明,调整后网络的无线接通率、切换成功率、掉线率等指标均有明显改善,验证了该策略的有效性和可行性。
The parameter configuration in LTE network are all based on the topology and simulation calculation of network planning stage,and this would usually result in that some parameters are not applicable to the real network and affects the network service quality. Therefore,in combination with the actual project,a network optimization strategy based on TA(Time Advanced) is proposed,which according to TA of the user access,calculates the cell radius and adjusts the NCS(Number of Cyclic Shift) of cell. Engineering practice indicates that with the application of optimization,network performances,including wireless call completing rate,handover success rate and radio drop rate could be markedly improved,and the effectiveness and feasibility of this strategy be incontrovertibly proved.
The parameter configuration in LTE network are all based on the topology and simulation calculation of network planning stage,and this would usually result in that some parameters are not applicable to the real network and affects the network service quality. Therefore,in combination with the actual project,a network optimization strategy based on TA(Time Advanced) is proposed,which according to TA of the user access,calculates the cell radius and adjusts the NCS(Number of Cyclic Shift) of cell. Engineering practice indicates that with the application of optimization,network performances,including wireless call completing rate,handover success rate and radio drop rate could be markedly improved,and the effectiveness and feasibility of this strategy be incontrovertibly proved.
引文
[1]Andreas Binzenhofer,Kurt Tutschku,Bjorn Auf Dem Graben,Markus Fiedle and Patrik Arlos.Wireless Systems and Network Architectures in Next Generation Internet[M]TN929.53.Springer Berlin,Heidelberg,2006:198-210.
[2]刘毅,刘珂,孔建坤.基于大数据挖掘的LTE网络规划研究[J].通信技术,2015,48(02):194-198.LIU Yi,LIU Ke,KONG Jian-kun.TD-LTE Network Planning based on Big-Data Mining[J].Communications Technology,2015,48(02):194-198.
[3]叶仁召.LTE网络上行共享信道功控参数优化研究[J].通信技术,2015,48(03):330-334.YE Ren-zhao.Control Parameter Optimization of LTE Uplink Shared Channel[J].Communications Technology,2015,48(03):330-334.
[4]吴松.LTE系统中PRACH信道覆盖性能分析[J].电信科学,2010,26(02):80-84.WU Song.Coverage Performance Analysis about PRACH Channel of LTE.Telecommunications Science,2010,26(02):80-84.
[2]刘毅,刘珂,孔建坤.基于大数据挖掘的LTE网络规划研究[J].通信技术,2015,48(02):194-198.LIU Yi,LIU Ke,KONG Jian-kun.TD-LTE Network Planning based on Big-Data Mining[J].Communications Technology,2015,48(02):194-198.
[3]叶仁召.LTE网络上行共享信道功控参数优化研究[J].通信技术,2015,48(03):330-334.YE Ren-zhao.Control Parameter Optimization of LTE Uplink Shared Channel[J].Communications Technology,2015,48(03):330-334.
[4]吴松.LTE系统中PRACH信道覆盖性能分析[J].电信科学,2010,26(02):80-84.WU Song.Coverage Performance Analysis about PRACH Channel of LTE.Telecommunications Science,2010,26(02):80-84.