Patent ID: 8761073

Claim:
A backhaul control communication method for use in a relay station, a wireless communication system conforming to the LTE standard and comprising the relay station, a base station, and a core network, the relay station being wirelessly connected to the base station, the base station being wiredly connected to the core network, and the backhaul control communication method comprising the steps of: (a) enabling the relay station to create a radio link having a control plane connection between the relay station and the base station, comprising the steps of: (a1) enabling the relay station to create an uplink path between the relay station and the base station; and (a2) enabling the relay station to create a downlink path between the relay station and the base station; (b) enabling the relay station to creates a backhaul link by creating an X2 interface of the LTE standard upon the RRC layer and the PDCP layer and between the relay station and the base station by the control plane connection of the radio link, comprises the steps of: enabling the relay station to add a parameter related to a container for dedicated information of X2-AP message; enabling the relay station to generate an X2 setup request message; enabling the relay station to generate a first X2-AP message carrying the X2 setup request message by the container for dedicated information of X2-AP message; enabling the relay station to generate an uplink message carrying the first X2-AP message; enabling the relay station to transmit the uplink message; enabling the relay station to receive a downlink message from the base station; enabling the relay station to extract a second X2-AP message from the downlink message; and enabling the relay station to extract an X2 setup response message from the second X2-AP message by removing the container for dedicated information of X2-AP message; and (c) enabling the relay station to transmit or receive a backhaul control message within the container via the backhaul link, wherein the relay station is one of a relay node, a ReNB, and a relay eNB, the base station is a DeNB, and the core network is an EPC.