Method and apparatus for secure downloading of operational information into a wireless communications device
US5524135A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Feb 14, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for secure and prompt distribution of critical operational information to a wireless cellular or PCS subscriber station via wireless interface which includes the steps of generating operational information, storing the operational information into a first memory of a wireless base station, and transmitting at least a portion of the operational information stored in the first memory to a wireless subscriber station via a wireless interface at random times during an active conversation state of the wireless subscriber station. The operational information stored in a second memory register in the subscriber station is updated with the operational information transmitted from the first memory. Where at least a portion of new operational information is received by the subscriber station, a first update counter is incremented to reflect the number of operational information updates received by the subscriber station. The value of the contents of the first update counter is then reported to the wireless base station via a wireless interface. Where the value of the contents of the first update counter is different from the value of the contents of a second update counter in the ba…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.