Distributed wireless access method based on network allocation vector table and apparatus of the same
US7522576B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2005 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Nov 11, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/0808
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention include a wireless access method based on a NAVT (Network allocation vector table), which is applied to a distributed wireless mobile communication system comprising a plurality of nodes, the NAVT comprises a packet type field and a duration field and is stored in the respective nodes of the communication system, comprising: on a transmitting side, determining whether only a RTS (request to send) item is contained in the NAVT when a packet arrives; sensing channel to judge whether the channel is busy after determining that only the RTS item is contained in the NAVT; sending a RTS packet based on the RTS item to the receiving side after determining that the channel is busy; and on a receiving side, determining whether the NAVT is empty or not when the RTS packet is received; sending a CTS (clear to send) packet back to the transmitting side after determining that the NAVT is empty.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.