EPC中S10接口是什么网元间的接口（）

A. 常用照明 B.机架照明 C.电源柜照明 D.应急照明

A. PSS

B. SSS

C. S

D. S

A. DL-SCH

B. PCH

C. M

D. I

A. Band21 1495.9 MHz – 1510.9 MHz

B. nd33 1900 MHz – 1920 MHz

C. Band34 2010 MHz – 2025 MHz

D. Band35 1850 MHz – 1910 MHz

A. Single-antenna port

B. Transmit diversity&spatial multiplexing

C. Open-loop&osed-loop spatial multiplexing

D. Multi-user MIMO