Multiplexing/demultiplexing schemes between wireless physical layer and link layer
US6590882B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1999 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Mar 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W28/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a communication system, physical-layer frames for transmission over the physical layer are assembled from link-layer protocol data units (PDU's) by combining several PDU's into a variable-length first block, and providing the first block with an error detection and/or correction code such as a CRC. The first blocks are mapped into fixed-length second blocks, including repetitive copies of the first blocks if space permits. The second blocks are mapped into physical-layer frames, including repetitive copies of the second blocks if space permits. After reception of the frames, the replication enhances the probability of recovering correct PDU's as verified by the error detection and correction codes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.