System and method for using an adaptive hybrid coordination function (HCF) in an 802.11E wireless LAN
US7664089B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 12, 2007 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Jul 16, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system comprises a network congestion monitoring module for monitoring a congestion-related metric of a wireless medium, the congestion-related metric being based on traffic class, e.g., average contention window; a contention-period/contention-free-period (CP/CFP) adaptation module coupled to the network congestion monitoring module for generating CP/CFP information, e.g., CP/CFP duration information and/or traffic class shifting information, in response to the at least one congestion-related metric; a point coordinator module coupled to the CP/CFP adaptation module for coordinating access to the wireless medium using a point coordination function, e.g., HCCA, based on the CP/CFP information; and a distributed coordinator module coupled to the CP/CFP adaptation module for coordinating access to the wireless medium using a distributed coordination function, e.g., EDCA, based on the CP/CFP information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.