Antenna control for a wireless local area network station
US5164942A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1990 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Dec 24, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0805
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A local area network station (12) includes a transceiver (20) adapted to transmit and receive signals using electromagnetic radiation on a wireless communication link. The station (12) utilizes a CSMA/CD communications controller (22) in a CSMA/CA (collison avoidance) technique wherein deferred data frames are transmitted after a random number of backoff slots periods. A plurality of antennas (14, 16) is employed, with the antenna having the best receive conditions being selected for reception of a data frame. The antennas having a slotting control (200) which is synchronized with the backoff slotting to provide a short carrier detect time and hence high throughpout.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.