Patent ID: 8422575

Claim:
A broadcasting system, comprising: a transceiver, carrying out signal transmission via at least one fully configured carrier and at least one partially configured carrier; and a processor, coupled to the transceiver, controlling the transceiver to broadcast a first preamble set via the at least one fully configured carrier, and controlling the transceiver to broadcast a secondary preamble set via the at least one partially configured carrier, wherein the first preamble set comprises a primary preamble and at least one secondary preamble, and the second preamble set comprises no primary preamble and at least one secondary preamble; wherein the first preamble set comprises the primary preamble and three secondary preambles sequentially transmitted in each frame of the at least one fully configured carrier, wherein the primary preamble is transmitted at a start of each frame of the at least one fully configured carrier; wherein the second preamble set comprises four secondary preambles sequentially transmitted in each frame of the at least one partially configured carrier, and the four secondary preambles of the secondary preamble set are respectively transmitted in correspondence with the primary preamble and the three secondary preambles of the first preamble set; wherein the secondary preamble first transmitted in the secondary preamble set has a different code sequence with those of the other three secondary preambles in the secondary preamble set.