电信工程技术与标准化
電信工程技術與標準化
전신공정기술여표준화
TELECOM ENGINEERING TECHNICS AND STANDARDIZATION
2014年
7期
67-71
,共5页
马宁%李春明%万仁辉%武琳栋
馬寧%李春明%萬仁輝%武琳棟
마저%리춘명%만인휘%무림동
TD-LTE%D频段%F频段%同频切换%异频切换%RSRP%SINR%速率
TD-LTE%D頻段%F頻段%同頻切換%異頻切換%RSRP%SINR%速率
TD-LTE%D빈단%F빈단%동빈절환%이빈절환%RSRP%SINR%속솔
TD-LTE%band D%band F%intra-freqnency handover%inter-freqnency handover%RSRP%SINR%speed
中国移动TD-LTE网络宏站覆盖有D频段和F频段两个频段,对应有同频切换和异频切换两种方式,两种切换过程基本相同。同频切换前SINR会比较差,切换后SINR提升比较明显,异频切换时由于有频率隔离,SINR值一直比较趋于稳定,切换后SINR值也会有所提升,但是会有异频测量GAP时间占用。两种切换方式都会提升速率,但从大量测试数据分析来看,异频切换速率提升幅度高于同频切换。
中國移動TD-LTE網絡宏站覆蓋有D頻段和F頻段兩箇頻段,對應有同頻切換和異頻切換兩種方式,兩種切換過程基本相同。同頻切換前SINR會比較差,切換後SINR提升比較明顯,異頻切換時由于有頻率隔離,SINR值一直比較趨于穩定,切換後SINR值也會有所提升,但是會有異頻測量GAP時間佔用。兩種切換方式都會提升速率,但從大量測試數據分析來看,異頻切換速率提升幅度高于同頻切換。
중국이동TD-LTE망락굉참복개유D빈단화F빈단량개빈단,대응유동빈절환화이빈절환량충방식,량충절환과정기본상동。동빈절환전SINR회비교차,절환후SINR제승비교명현,이빈절환시유우유빈솔격리,SINR치일직비교추우은정,절환후SINR치야회유소제승,단시회유이빈측량GAP시간점용。량충절환방식도회제승속솔,단종대량측시수거분석래간,이빈절환속솔제승폭도고우동빈절환。
Macro station of CMCC TD-LTE network is deployed in band D and band F. There are two kinds of handover: intra-frequency handover and inter-frequency handover, which are similar in handover progress. In intra-freqnency handover, SINR is relatively poor before handover while SINR improves greatly after handover. In inter-freqnency handover, because of frequency isolation, SINR is relatively stable and improves a little after handover, but the GAP of inter-freqnency measurement will take up some time. Both kinds of handover can improve the speed , but juding from a large number of test data, inter-freqnency handover show more speed improvement than intra-freqnency handover.