Question

Which among the following is a common control channel used by a radio to gain access to a system?

(a) Paging Channel

(b) Random Access Channel

(c) Access Grant Control Channel

(d) Cell Broadcast Channel

I got this question in quiz.

The doubt is from Next Generation Wireless Network in chapter Next Generation Wireless Network of Cognitive Radio

Answer 1

Right answer is (b) Random Access Channel

For explanation I would say: Common control channel transfers control information from a radio to a base-station. Random access channel is required to gain access to a system. It is invoked when the radio starts a call or replies to a page.