Simulating time-varying conditions in a wireless network
US8116758B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2009 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Jan 10, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W24/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Time-varying conditions in a wireless network are simulated using an architecture that includes an enclosure for shielding a wireless device under test (“DUT”) from electro-magnetic interference, including other wireless devices; and at least one of: (1) a communications traffic generating device operable to generate communications traffic having selected characteristics; and (2) at least one dynamically adjustable attenuator in communication with the wireless device and the traffic generator. Embodiments of the architecture include wireless test equipment for testing operating range, roaming and capacity. The attenuator is used to adjustably attenuate signals between the device and the traffic generator over time during a test, whereby motion of the device is simulated. By connecting multiple access points, each associated with a dynamically adjustable attenuator, it is possible to force the DUT to roam between access points. The communications traffic generating device can be used to vary traffic over time during a test in order to test capacity, prioritization and admission control. For example, the communications traffic generator may include phone and data client emulators whi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.