Communication in a wireless communications network when a mobile computer terminal may be unreachable
US7206849B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2000 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Oct 10, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/3203
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for communication between a mobile computer terminal and a host computer in a system in which it is necessary for the mobile computer terminal to send a message to the host computer at a particular time. The specific time at which the mobile computer terminal must send a message to the host computer is first determined. Then, a timer or clock is programmed to wake up the mobile computer terminal at the specific time. A sleep mode may be entered, which may be interrupted at the specific time to send the message. This will normally allow a mobile computer terminal to maintain its lease on an IP address despite being out of range of a wireless network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.