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提出了CATV(有线电视)线路实现TD-LTE(时分-长期演进)双路MIMO(多输入多输出)的传输技术。该技术通过近端机设备将CATV/两路LTE信号合并,利用CATV线路进行传输,在室内通过远端机将合路信号分离,远端机具有信号电平检测及功率放大电路来实现两路LTE的MIMO信号的功率平衡和信号损耗补偿,使MIMO达到最佳效果并获得最大覆盖范围。方案无需新建室内分布系统即可解决室内深度覆盖,LTE完整的MIMO特性满足高容量需求。测试表明,可完全实现深度覆盖且小区及单用户的吞吐量优于传统室分系统,同时大大降低了物业协调难度和工程改造量。
The transmission technology of TD-LTE (Time Division-Long Term Evolution) dual MIMO (Multiple Input Multiple Output) is proposed for the CATV (Cable Television) line. The technology combines CATV / two-way LTE signals through the equipment of the near-end equipment, and transmits the signals through the CATV line. The indoor signal is separated from the combined signal through the remote equipment. The remote equipment has the signal level detection and the power amplification circuit to realize two paths LTE MIMO signal power balance and signal loss compensation, so that the best results and get the maximum coverage of MIMO. The solution eliminates in-depth indoor coverage without having to create a new indoor distribution system. LTE’s complete MIMO features meet the high capacity requirements. The test shows that the system can fully realize the coverage of the depth and the throughput of the cell and the single user is superior to that of the traditional indoor subsystem, and at the same time, the difficulty of the property coordination and the amount of engineering reconstruction are greatly reduced.