Patent ID: 8855090

Claim:
A packet transferring apparatus, comprising: a header compressor configured to fragment an IP packet to be transmitted, compress at least one field, which is included in a header of the IP packet, to a predetermined number of bits, and set a compression encoding field indicating information on the compressed at least one field; a packet generator configured to determine that a fragment of the IP packet exists, eliminate at least another field, which is designated differently in the header of the IP packet according to whether the IP packet is fragmented or not, set an uncompressed field according to the elimination, generate a converted packet header from the header of IP packet, the converted packet header including information on the eliminated at least another field, and generate a converted packet supporting a wireless personal area network (WPAN) by using the fragmented IP packet and the converted packet header the header; and a packet transmitter configured to identify a destination address included in the compressed at least one field, transmit the generated converted packet according to the identified destination address.