Title:
パケット通信方法およびパケット通信装置
Document Type and Number:
Japanese Patent JP3883562
Kind Code:
B2
Abstract:
A first communication node, which transmits a packet including a data field and an FCS field, selectively transmits, to a second communication node, a first packet containing, in the FCS field, a first error detection code generated by performing a prescribed error detection code operation on a transmission packet or a second packet containing, in the FCS field, a second error detection code obtained by performing a prescribed operation on the first error detection code. The second communication node compares an error detection code C generated by performing the prescribed error detection code operation on a received packet with an error detection code F1 contained in the FCS field of the received packet, performs reception processing on the received packet with the understanding that it is classified as the first packet if the error detection codes C and F1 coincide with each other, compares the error detection code C generated by performing the prescribed error detection code operation on the received packet with an error detection code F2 obtained by performing an inverse operation for returning a result of the prescribed operation to an original on the error detection code F1 contained in the FCS field of the received packet, and performs reception processing on the received packet with the understanding that it is classified as the second packet if the error detection codes C and F2 coincide with each other.
Inventors:
Kengo Nagata
Tomoaki Kumagai
Shinya Otsuki
Saito Hajime
Satoshi Aikawa
Masafumi Yoshioka
Tomoaki Kumagai
Shinya Otsuki
Saito Hajime
Satoshi Aikawa
Masafumi Yoshioka
Application Number:
JP2005513371A
Publication Date:
February 21, 2007
Filing Date:
August 20, 2004
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04L1/22; H04L1/16; H04L29/02; H04W28/04; H04W72/04; H04L1/00
Domestic Patent References:
| JP10243054A |
Attorney, Agent or Firm:
Furuya Fumio
Toshihide Mori
Toshihide Mori