TD-LTE与TD-SCDMA共存组网特殊时隙配比方案研究及干扰分析  

Research on Special Timeslot Ratio Solution and Analysis of Interference in TD-LTE and TD-SCDMA Coexistence Network

作　　者：李坤江[1] 

机构地区：[1]中国移动通信集团公司计划建设部,北京100032

出　　处：《移动通信》2013年第20期15-19,共5页Mobile Communications

摘　　要：TD-LTE网络在F频段与TD-SCDMA网络共存建设时,由于同是TDD系统,为避免系统间干扰需要保证TD-LTE网络与TD-SCDMA网络上下行时隙对齐,通常TD-LTE网络会根据当前TD-SCDMA网络的时隙配比选择子帧配比2(3DL:1UL)、特殊子帧配比SSP5(3:9:2),但是由于SSP5子帧结构存在9个时隙的GP,导致系统容量存在损失。基于此,提出了另一种时隙对齐方案即采用SSP6的932方案,并对其实现原理进行介绍,分析了TDSCDMA/TD-LTE共存组网采用该方案时的干扰情况,从而提升系统容量。When TD-LTE network coexists with TD-SCDMA network at F-band, because both of them are TDD systems, the alignment of uplink and downtink time slots in TD-LTE and TD-SCDMA network should be guaranteed in order to avoid interference between the two systems. TD-LTE network usually selects sub-frame ratio 2 （3DL： 1UL） and special sub-frame ratio SSP5 （3：9：2） according to the current timeslot ratio in TD-SCDMA network. But it will lead to the loss of system capacity because there are nine GP slots in SSP5 sub-frame. Therefore, another solution which uses SSP6 （9：3：2） is proposed, of which the implementation principles are presented. And then the interference in TD-LTE and TD-SCDMA coexistence network using this solution is analyzed to increase system capacity.

关 键 词：TD—LTE TD SCDMA 特殊子帧配比 干扰 

分 类 号：TN929.5[电子电信—通信与信息系统]