Patent ID: 8909044

Claim:
A method for transmitting data, comprising: a transmitter carrying indication information in an uplink or a downlink frame transmitted to a receiver for enabling the receiver to discard information which does not need to be processed by the receiver in the uplink or downlink frame according to the indication information; wherein, the transmitter carries the information which does not need to be processed by the receiver in a gigabit-capable passive optical network encapsulation method GEM frame of the uplink or downlink frame, wherein, when value of port identification in a frame header of the GEM frame is a preset value, it indicates that the GEM frame carries the information which does not need to be processed by the receiver; or the transmitter carries the information which does not need to be processed by the receiver in a preset GEM frame of the uplink or downlink frame, wherein, when value of payload type in a frame header of the preset GEM frame is a preset value, it indicates that the GEM frame carries the information which does not need to be processed by the receiver.