Patent ID: 8275418

Claim:
A base station device, comprising: a radio equipment (RE) having a first port and a second port; a first radio equipment controller (REC) supporting a first radio access technology; and a second REC supporting a second radio access technology, wherein the first REC is configured to: transmit first downlink data corresponding to the first radio access technology to the RE, receive first uplink data corresponding to the first radio access technology from the RE, determine, according to slot ID information or radio access technology information received from a link, that the first radio access technology is different from the second radio access technology; determine that a mode of the link is a dual-star link mode according to a hop number received from the link; and send Layer 1 (L1), information to the RE, wherein the L1 information includes indication information of the dual-star link mode, wherein the second REC is configured to transmit second downlink data corresponding to the second radio access technology to the RE, and receive second uplink data corresponding to the second radio access technology from the RE.