LTE压缩带宽载波聚合及与GSM频谱共享方案研究

摘要

It proposes a scheme on the LTE carrier aggregation with compression bandwidth and sharing frequency between LTE and GSM. It realizes 20+10 MHz LTE carrier aggregation and GSM single frequency network with 12 carriers in 30 MHz bandwidth. The results of field test show that performance of the network is not lost by the compression bandwidth carrier aggregation. Moreover,there is little interference between LTE and GSM when co-location of their sites. LTE BS is interfered by GSM UE when co-existence of their sites. So,it is suggested that the proposed scheme can be implemented in co-location,or avoid using GSM carriers in the LTE bandwidth when co-existence.%提出了一种LTE压缩带宽载波聚合及与GSM频率共享的频率使用方案。在30 MHz带宽内实现20+10 MHz LTE载波聚合以及具有12个GSM频点的单频GSM网络。并通过实测的方式对该方案进行了网络性能验证。结果表明压缩带宽载波聚合在网络性能上基本没有损失。GSM与LTE在共站场景下，相互之间干扰甚微，可实现共存。在不共站场景下GSM终端对LTE基站存在干扰。建议该方案在共站场景下实施或避免在不共站场景下使用LTE带内的频点。