Systems and methods for transmitting and receiving data in connection with a communications stack in a communications system
US5983259A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Feb 19, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Management of datastream construction prior to transmission of the datastream across a channel of a communications system by providing for data blocking while reducing movement or copying of the data improves the performance in a communications system. Multiple header segments received from a higher layer in the communications stack are copied into the datastream header area of a datastream such that the header segments are sequentially stored in the datastream header area. A datastream buffer list having entries referencing the datastream header area is generated. Buffer list entries referencing data segments received from higher layers in the communications stack are also stored in the datastream buffer list. The data segments are not physically moved or copied into the datastream during processing by the communications stack. Rather, a "virtual" datastream is generated by the communications stack for transmission without physically moving or copying the data segment. The datastream is transmitted across the channel by the system input/output interface by first writing the datastream header area referenced by the datastream buffer list directly into the channel, and the data segm…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.