Patent ID: 7817603

Claim:
A method for transmitting a plurality of antenna signals between a main Base Transceiver Station (BTS) and one or more Remote Radio Units (RRUs), wherein a transmit channel between the main BTS and the one or more RRUs communicates using a wideband transmission link or a network, and at least one of said RRUs communicates the plurality of antenna signals with the main BTS over the transmit channel by using a plurality of antennas, the method comprising the steps of: at a transmit end: transmitting over the transmit channel using a Synchronous Digital Hierarchy (SDH)/Optical Transmission Network (OTN); multiplexing the plurality of antenna signals over the transmit channel using time division multiplex; and forming a multiplexed antenna signal stream and an in-band control signaling stream together into a Generic Framing Procedure (GFP) frame, and further mapping the GEP frame to a STM-N/OTM-n frame, thereby multiplexing the plurality of antenna signals and the in-band control signaling stream to realize SDH/OTN-based transmission.