Patent ID: 8086173

Claim:
A method for implementing a random access of a new access node, comprising: receiving, by a synchronization station, at least one access request from a new access node directly or from at least one relay station via a reporting message, wherein the reporting message comprises: a received signal intensity parameter P, a carrier frequency difference Δf of the new access node with respect to the at least one relay station, and a time synchronization difference ΔT of the new access node with respect to the at least one relay station; selecting, by the synchronization station, a station with a minimum |Δf i ·ΔT i |/P i value as a most appropriate station according to at least one access request, wherein i=0, 1, . . . , k, and k is a number of the at least one relay station for forwarding the access request, wherein the station corresponding to |Δf 0 ·ΔT 0 |/P 0 is the synchronization station itself, P 0 =P BS +P_Offset, P BS is a signal intensity of the access request received by the synchronization station itself, P_Offset is a fixed parameter greater than 0, Δf 0 is a carrier frequency difference of the new access node with respect to the synchronization station, ΔT 0 is a time synchronization difference of the new access node with respect to the synchronization station, and when i is not equal to 0, P i is a signal intensity of the access request received by an i th relay station, Δf i is a carrier frequency difference of the new access node with respect to the i th relay station, and ΔT i is a time synchronization difference of the new access node with respect to the i th relay station; and implementing an access of the new access node according to the station selected by the synchronization station and the synchronization station itself.