Patent ID: 8358670

Claim:
A packet producing method comprising: determining, using a determination unit, whether information to be transmitted comprises data or control information; generating, using a header generation unit, a data link layer packet header comprising information used to distinguish a data packet from a control packet, according to the determining; and encapsulating, using an encapsulation unit, the information to be transmitted by using the data link layer packet header, wherein the encapsulating of the information to be transmitted comprises encapsulating the information to be transmitted by using the data link layer packet header to produce an upper layer packet of a data link layer packet payload, and encapsulating the upper layer packet of the data link layer packet payload by using the data link layer packet header, wherein if the information to be transmitted comprises data, one or more source packets are allocated to a payload of the upper layer packet, and wherein one or more time stamps are inserted into the payload of the upper layer packet such that the one or more time stamps are respectively allocated to the one or more source packets, or wherein a single time stamp is inserted into the payload of the upper layer packet for all of the one or more source packets.