Random access method and base station

A base station, comprising:

• a sending module, configured to assign a relay-dedicated random access preamble to a relay, wherein the relay-dedicated random access preamble indicates an access priority of the relay to be higher than that of an ordinary user equipment;
• a receiving module, configured to receive the relay-dedicated random access preamble sent from the relay and a random access preamble sent from the ordinary user equipment;
• a determining module, configured to determine whether the receiving module receives the relay-dedicated random access preamble;
• and
• a random access module, configured to perform, in a situation that the determining module determines the receiving module receives the relay-dedicated random access preamble, a non-contention-based random access preferentially for the relay.

A base station, comprising:

• a setting module, configured to set a transmission power threshold in advance, wherein the transmission power threshold is configured to determine whether a random access preamble received by the base station is a random access preamble sent from a relay;
• a receiving module, configured to receive a random access preamble and a random access preamble transmission power parameter sent from the relay on a predetermined random access time slot of a radio frame;
• a determining module, configured to determine whether the random access preamble received is the random access preamble sent from the relay according to the random access preamble transmission power parameter received and the transmission power threshold;
• and
• a random access module, configured to perform, in a situation that the determining module determines the random access preamble received is the random access preamble sent from the relay, a non-contention-based random access preferentially for the relay.