答案:AD
答案:AD
A. A、只能由UE发起
B. B、只能由网络侧发起
C. C、可以由UE发起
D. D、可以由网络侧发起
A. A、接力切换与软切换的切换成功率都较高Thesuccessfulhandoverratiosofbothbatonhandoverandsofthandoverarehigh
B. B、接力切换与软切换都需要同时有多个基站为一个移动台服务BoththebatonhandoverandsofthandoverneedmultipleNodeBstoserveonemobilestation
C. C、接力切换与软切换的上行干扰都较小Theuplinkinterferenceofboththebatonhandoverandsofthandoverarelittle
D. D、接力切换与软切换的下行干扰都较小Thedownlinkinterferenceofboththebatonhandoverandsofthandoverarelittle