1 IntroductionTime-division synchronous code-division multiple access (TD-SCI)MA) is a 3G wireless communica- tion standard developed in China and adopted by ITU. It has high spectrum efficiency; it providesgood sy...1 IntroductionTime-division synchronous code-division multiple access (TD-SCI)MA) is a 3G wireless communica- tion standard developed in China and adopted by ITU. It has high spectrum efficiency; it providesgood system slability; and it lowers network construction costs. After many years of development, it is now at the stage of large-scale application.展开更多
文摘1 IntroductionTime-division synchronous code-division multiple access (TD-SCI)MA) is a 3G wireless communica- tion standard developed in China and adopted by ITU. It has high spectrum efficiency; it providesgood system slability; and it lowers network construction costs. After many years of development, it is now at the stage of large-scale application.