Method, system and components for facilitating wireless communication in a sectored service area
US7206610B2 · kind B2 · utility
47Cited by
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29Claims
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Assignee
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Key dates
| Filing date | Dec 28, 2004 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | May 10, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Network Allocation Vector (NAV) and “beam access control” (BAC) techniques are provided to address data collision problems in WLANs wherein APs provide wireless network access in a service area defined by multiple sectors via use of a switchable antenna system or the like. Preferably, every time the AP visits a sector and before the AP moves on to the next sector, the AP can set the NAV equal to the time it will take until its next visit. Alternatively, or in addition, a BAC bit is transmitted by an AP to control access to the AP by WTRUs disposed in a service sector in which the BAC is transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.