Method and system for notifying transport layer address

A method and system for notifying a transport layer address. The method comprises: a first base station sending to a second base station transport layer address information about an X2 gateway connected thereto, wherein the first base station is a home eNB (Step 10); and according to the received transport layer address information about the X2 gateway, the second base station initiating an X2 connection establishment flow (Step 20). The system comprises: a first base station which is set to send to a second base station transport layer address information about an X2 gateway connected thereto, wherein the first base station is a home eNB; and a second base station which is set to initiate an X2 connection establishment flow according to the received transport layer address information about the X2 gateway.