Method of and system for one plus one protection for radio equipment
US6687217B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1999 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | May 4, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of and apparatus incorporating 1+1 protection in a point-to-point radio system includes redundant microwave radio transceiver pairs, each transceiver including identical controls for identifying faults and reconfiguring to accommodate failures. Each transceiver includes receiver and transmitter monitoring circuitry for detecting a loss of received signal or transmitted signal, respectively. Fault signals are generated in response to loss of signal which are then processed by a designated master processor implementing a set of rules for identifying a likely failure corresponding to the faults detected. According to the rule, a partial loss of received signal by one of the receivers indicates a failure of that receiver, while loss of signal by both receivers is interpreted as a failure of the corresponding far-end transmitter. Conversely, receipt of a loss of signal message from a far-end radio station is interpreted as a failure of the active transmitter or the master controller. In response, the hot standby transceiver is brought online, the active transceiver is placed in a standby mode, and the appropriate maintenance facilities are notified. In addition to activating th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.