Multiple access wireless communications antenna apparatus
US7482992B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2007 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | May 18, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multiple access wireless communications architecture provides selective, simultaneous communications with wireless devices located in different sections of a spatial area around a communications apparatus referred to as “sectors”. This includes communications between wireless devices in a single sector, between wireless devices in different sectors and between wireless devices and a wired network or wireless backhaul network. The wireless communications architecture generally includes two or more wireless antenna arrangements that are each configured to provide communications with wireless devices located in a particular sector. Each wireless antenna arrangement is further configured to determine whether signals are being communicated on a communications channel before transmitting on the communications channel. This may be implemented, for example, using a carrier sense or energy detection mechanism. Wireless devices within a sector may communicate on the same or different communications channels, depending upon the particular multiple access protocol employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.