RANDOM ACCESS METHOD AND DEVICE
FIG4 is a schematic signaling interaction diagram of a random access method according to an embodiment of this application
The following provides a random access method, and description is provided by using an example in which a terminal is UE and a first signal is a first preamble. As shown in FIG4, the method includes the following steps.
schematic diagram
303
storage module
4
message
302
communications module
301
processing module
3
message
['2. The method according to claim 1, wherein before the performing, by a terminal, listen before talk LBT on a first carrier, the method further comprises: receiving, by the terminal, a radio resource control RRC configuration message sent by the base station, wherein the RRC configuration message is used to instruct the terminal to detect the first preamble signal when the first carrier is in a busy state, or the RRC configuration message is used to instruct the terminal to detect the indication information when the first carrier is in a busy state.']