Method of communication between a plurality of remote units and a control unit
US6104279A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 1998 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | Mar 23, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/825
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a communication system comprising a base station and a plurality of asynchronously operating remote units, a method of communication between the base station and each of the remote units includes each remote unit randomly transmitting a first bit pattern to the base unit. Upon detecting the reception of an error-free bit pattern, the base unit transmits an ACK during a first window of time. The remote unit which detects the ACK during a corresponding first window of time becomes the selected unit and thereafter communicates with the base station. All other remote units continue monitoring for the transmission of a command belonging to a first set of commands, afterwhich the selected unit goes into a quiet mode and the unselected units resume their random transmissions of the first bit pattern to the base unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.