Design And Implementation Network Of Management Platform For Indoor Wireless Coverage

With the continuous development of 4G services,the demand for data traffic is also increasing.In order to promote the development of LTE,indoor coverage of 4G wireless signal has become a key issue.Based on the above context,in order to achieve the purpose of the MIMO signals indoor coverage,the project team designed a MIMO frequency shift system to transmit the MIMO signals with the same frequencies.MIMO devices can be divided into master and slave,the master can access LTE source from the base station,then use a single cable to transmit the MIMO signals with the same frequencies to the slave.The slaves are installed indoor and output received signals to the antennas.The second chapter of the article introduces the operating mode of the entire frequency shift system,the automatic test scheme of the devices,and designs of the test equipment and software.In order to monitor the devices which are already installed,the project developed a network management system for the MIMO devices.The network management system is separated to three parts,namely,data acquisition system,local monitoring system and network magement center."China Mobile Repeater Network Management Protocol" is used as the communication standard.Data acquisition system is operating in MIMO devices to provide external network management interface.The master device uses serial and Ethernet port to communication,which can be connected with GSM Modem to provide SMS and GPRS services.The interactive data between monitoring center and slave device is forwarded by the master.The master and the slave are connected via RF cable and communicated with 2FSK modulated signals.Local monitoring system is mainly used in the field operation of the device.The main functions include equipment register,query and configuration parameters and equipment remote upgrade.The system can control the devices send report information to the Network management center.Network management center can only monitor the device which has send report information.It can manage all operating equipments uniformly.This article describes two schemes,the first one is to use the local monitoring system as the network management center,and the other is to use China mobile repeater network management platform as the network management center.In order to control updated version of the software,this dissertation has developed a remote programming function of the data acquisition system.Compared with traditional programming methods,the function is more efficient and safer.The dissertation finally does some relevant tests for the network management system.The test results show that the platform can get the device status information and operating parameters in real time.