Until 1961 the U-Bahn station was named Neukölln (Südring) to refer to the S-Bahn connection. However, Südring was removed from the name after the Berlin Wall was built.
The U-Bahn station in question was initially named Neukölln (Südring) to signify its connection to the S-Bahn system. The removal of Südring from the station's name occurred after the construction of the Berlin Wall.