Multiple access wireless communications architecture
US7248877B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2003 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Sep 3, 2024 |
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. For example, TDMA or CSMA may be used to allow wireless devices in a sector to share communications channels. Communica…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.