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在LTE(长期演进)前三期工程建设中,宏基站采用F频段为主建设,配置S1/1/1(三扇区,每扇区1个载频),的LF方案;在局部有载频干扰、站高不理想或者宏蜂窝结构不理想的基站采用D频段建设,配置S1/1/1,的LD方案;室内分布系统则采用E频段覆盖,配置O1(载波带宽20 MHz)的LE方案。介绍了TD-LTE(分时长期演进)双层网覆盖解决方案:LF扩LD解决方案和LD扩LF解决方案,并介绍了TD-LIE双层网后续演进。
In the first three phases of LTE (Long Term Evolution) construction, the macro base station adopts the F-band-based LF configuration with S1 / 1/1 (three sectors and one carrier per sector) Base station with frequency interference, station height is not ideal or macrocell structure is not ideal for the construction of the D-band, the configuration of S1 / 1/1, the LD program; indoor distribution system is used E-band coverage configuration O1 (carrier bandwidth 20 MHz) LE Program. Introduced TD-LTE (time-sharing long-term evolution) double-layer network coverage solutions: LF LD solution and LD LF solution, and introduced the TD-LIE double-layer network subsequent evolution.