One kind of a random access device mtc backoff time notification method and system for

The present invention discloses an apparatus MTC random access backoff time notification method and system, a random access notification ME backoff time is different from the common UE access to the network. Said method comprising: a machine type communication device in advance (ME) partitioning one or more dedicated random access preamble; random access procedure, when the base station is overloaded, the base station transmits a random access response to the terminal media access the layer packet data unit (MAC PDU) corresponding to carries the dedicated random access preamble dedicated random access response, the dedicated random access response including ME dedicated random access backoff time information; receiving at the ME after the dedicated random access response, wherein the random access read backoff time information. Using the method of the invention, can be different for the ordinary terminal devices and MTC feedback random access backoff time, to avoid network device MTC caused congestion in the random access procedure.