单项选择题
The GPRS physical channels is called ()。
A.PDCH(Packet Date Channel) B.PTCH(Packet Traffic Channel) C.PHCH(Physical Channel) D.GPCH(GPRS Physical Channel)
单项选择题 Each radio block is sent in ()consecutive bursts on one time slot。
单项选择题 USF is sent in the()blocks。
单项选择题 In BSS, the relay function relays()between Um and Gb interfaces。