Data communication system and method for transporting data
US6389016B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1998 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Oct 14, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/1635
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a data communication system, a sending entity divides data into a plurality of groups, each of which is segmented into a plurality of packets, and then sequentially transmits the packets in each group to the receiving entity. The receiving entity receives each packet, and determines whether the packet is sequentially received in a group. When an out-of-sequence error arises, the receiving entity discards the received packet, and sends a negative acknowledgment to the sending entity if no negative acknowledgment has been sent for the group. Only a single negative acknowledgment is sent for the group until an expected packet is received. When all packets of the group are received, the receiving entity sends a positive acknowledgment to the sending entity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.