现阶段TD-LTE室外可用频段包括F频段和D频段,为加快TD-LTE网络建设,未来势必将存在大量与TD-SCDMA共站共天馈的TD-LTE站点。在进行F频段TD-LTE网络优化时,将存在与TD-SCDMA联合优化的问题。TD-LTE同频组网时,过高站点会增加区域的重叠覆盖范围和程度,影响覆盖区域的网络性能,通常把高于覆盖区域内的站点平均高度50%以上的站点定义为过高站。非理想网络结构定义为存在高站、过密站点或其它分布不均匀站点的网络结构。实际外场测试中,我们找到了一个网络结构相对理想的TD-SCDMA升级支持TD-LTE场景,但距离理想 At this stage, the available frequency band for TD-LTE outdoor includes the F frequency band and the D frequency band. In order to speed up the construction of the TD-LTE network, there will inevitably be a large number of TD-LTE sites co-fed with TD-SCDMA total stations in the future. In the F-band TD-LTE network optimization, there will be joint optimization with TD-SCDMA. In the case of TD-LTE intra-frequency networking, over-high sites increase the overlapping coverage and degree of areas and affect the network performance in the coverage area. Generally, a site that is over 50% above the average site height in the coverage area is defined as an over-high station . Non-ideal network structure is defined as the existence of high-station, over-dense sites or other unevenly distributed sites network structure. In the actual field test, we found a relatively ideal network structure TD-SCDMA upgrade support TD-LTE scene, but the distance ideal