Design And Implementation Of 1.8GHz Wireless Network Transformation Project In Hohhot Airport

Defects of the previous Wimax technology,such as low network capacity(network bandwidth),poor video transmission quality,and frequent congestion of local data and so on,are optimized through the transformation of the 1.8GHz wireless network.Starting from the optimization of switching parameters,the problem of frequent switching will be reduced by modifying the parameter configuration of the same-frequency from internet and therefore improving terminal switching from serving community.By modifying the maximum power value of community from internet,the signal coverage of the terminal building is optimized.Then the DSP code is optimized and the DSP version is channeled into the base station.After being tested,RRC connection reestablishment of this type will no longer occur.For community 1102(PCI=14)and 3303(PCI=26),we changed the PCI of the 1102(PCI=14)community into 15,and then an obvious improvement of the SINR for the domestic baggage sorting center was shown,which was beneficial for success rate in switching and business fluency of the terminal in the switching zone.By modifying the base station configuration table to merge 1104 and 1105 community into 1104 community,modulo-3 interference disappeared in the test and SINR in switching band was significantly increased;By increasing the duration of the core network waiting for the UE response timer and adding optimization code of part process,call completing rates in abnormal conditions were improved.By optimizing the base station,terminal power consumption was reduced,owing to which,achievements,like improvement of frequent switching and weak coverage,optimization of service reject,reduction of abnormal RNTI and the adjustment of PCI mode tri-interference and the SINR value in switching band,have been acquired.The Optimization from the core network side has been effective in increasing the success rate of service request and the connection rate in some scenarios,improving the id-paging mechanism of core network,and shortening the time of called access.Through antenna system the local signal coverage has been optimized and the phenomenon of overlapping coverage has been improved.The reconstruction of 1.8GHz wireless network project has optimized Wimax technology and it provides a solution for such problems as low network capacity(network bandwidth),poor video transmission quality,and frequent congestion of local data and so on.