随着移动宽带时代的到来,传统的宏网单一建设模式遇到了越来越多的覆盖和容量挑战,在这种情况下,宏微协同组网、构建立体网络、室内外一体化部署成为大势所趋。随着国内FDD牌照的发放,为更好地抢占用户和市场,各运营商LTE网络建设节奏进一步加快,宏站站址问题越来越凸显,单纯依靠宏站已不能做到无缝覆盖。从覆盖角度出发进行分析,主要存在以下难题:首先,随着网络成熟度的提升,传统宏站越来越多,越来越密集,站址资源获取也越来越困难,实际站址与规划站址有偏差,导致宏网覆盖存在空洞;其 With the advent of the mobile broadband era, the traditional single macro-network construction mode has encountered more and more coverage and capacity challenges. Under such circumstances, macro-micro coordinated networking, building a three-dimensional network and integrated indoor and outdoor deployment become the trend of the times . With the issuance of domestic FDD licenses, in order to better seize the users and the market, the pace of construction of LTE networks for various operators is further accelerated, and the site problems of the macro stations are becoming more and more prominent. Seamless reliance on macro stations alone can not be achieved. From the perspective of coverage, there are mainly the following problems: First, as the maturity of the network increases, more and more traditional macro stations are getting more and more intensive, making it more and more difficult for site resources to be obtained. The actual site and planning Site deviations, resulting in the existence of macro network coverage hole;