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LTE网络中基站的发射功率是平均到每个子载波,即子载波均分基站的发射功率。因此,每个子载波的发射功率受到配置的系统带宽的影响,带宽越大,每个子载波的功率越小。在特定场景下,可以通过调整带宽的方式提高小区的RS信号功率,用于改善小区的覆盖效果。本文从研究LTE站点设备特性出发,在LTE小区带宽从20M调整为10M后,通过覆盖、现场用户感知和网络指标等多维度评估调整效果,并提出相关场景应用方案。
The transmit power of the base station in the LTE network is averaged to the transmit power of each subcarrier, that is, the subcarrier is equally divided into base stations. Therefore, the transmit power of each subcarrier is affected by the configured system bandwidth. The larger the bandwidth, the smaller the power per subcarrier. In a specific scenario, the RS signal power of the cell can be increased by adjusting the bandwidth, so as to improve the coverage effect of the cell. Based on the research of LTE equipment, the thesis adjusts the bandwidth of LTE cell from 20M to 10M, and then evaluates the effect through coverage, on-site user perception and network indicators, and puts forward the scenario application scenarios.