利用闭环功控和PRB三段式分配组合下的5G干扰优化

5G建网初期基站默认配置开环功控+两端式分配方案,但此方案随着5G商用推广后用户数的逐步增加,小区间干扰会越来越大,影响用户使用感知度。本研究提出使用闭环功控+PRB三段式资源分配方式,即相邻小区通过PCI模三不同,分配的PRB起始位置不同,降低相邻小区干扰,提升用户感知。采用闭环功控+PRB三段式策略对于前台验证的小包、中包以及大包性能验证均有明显提升,适合借鉴推广。

5G interference optimization using closed-loop power control and three-stage PBB allocation combination

At the initial stage of 5g network construction, the base station is configured with open-loop power control + two-end distribution scheme by default. However, with the gradual increase of the number of users after 5g commercial promotion, the inter cell interference will be more and more serious, which will affect the user"s perception. In this study, closed loop power control + PRB three-stage resource allocation method is proposed, that is, adjacent cells through PCI module 3 are different, the allocation of PRB start position is different, reduce the interference of adjacent cells, improve user perception. The three-stage strategy of closed-loop power control + PRB can significantly improve the performance verification of small package, medium package and large package, which is suitable for reference and promotion.