Patent ID: 11026269

Abstract:
The present disclosure provides a preamble configuration method on an unlicensed carrier, which includes: PRACH configuration information. The PRACH configuration information includes sub-frame location information, CCA interval location information for a channel idle estimation, a channel detection mechanism, preamble format information and preamble sending location information; the sub-frame location information representing a sub-frame number of a sub-frame in which a preamble to be sent is located, the CCA interval location information representing a location on the sub-frame or on a previous sub-frame of the sub-frame, the CCA interval occupying at most N symbols at a head or at an end of the sub-frame, the preamble format information representing that the preamble is a format 0 preamble, the preamble sending location information representing a sending location of the format 0 preamble to be sent on the sub-frame. Control signaling carrying the PRACH configuration information to user equipment is sent.