Transmission system and method applied to wireless relay

The invention discloses a transmission system applied to a wireless relay. The system comprises at least two transmission network access nodes which are connected with a relay, wherein the relay is simultaneously accessed into a transmission network by a transmission network access node positioned on a core network and a transmission network access node positioned on a Donor NB (DNB) and transmitting relay data on transmission channels which are respectively established among different transmission network access nodes. The invention also discloses a transmission method applied to a wireless relay. The method comprises the following step: the relay is simultaneously accessed into the transmission network by the transmission network access node positioned on the core network and the transmission network access node positioned on the DNB. By adopting the system and the method of the invention, the relay can be simultaneously accessed into the transmission network by two transmission passages, thereby solving the problem of relay data transmission comprising scene switching.