Detecting tropospheric ducting interference in cellular networks
AssigneeSpectrum Effect Inc.
InventorsDavid James Ryan, Rekha Menon, Jungnam Yun, Eamonn Gormley
Life of this patent
Estimating the term…
Abstract
Tropospheric ducting can cause interference to a wireless telecommunications network from a remote source that would not normally cause such interference to the network. Interference from tropospheric ducting can be determined by analyzing tropospheric ducting factors which, individually or in combination, indicate interference from tropospheric ducting. Future tropospheric ducting interference events can be predicted using forecast data and data from past events.
Claims19
A method for a wireless telecommunications network comprising:
- receiving configuration data, performance data and topology data for the wireless telecommunications network;
- determining a multi-site interference event affecting at least one channel of a plurality of receivers in the wireless network using the configuration data and the performance data;
- analyzing a plurality of tropospheric ducting factors for the plurality of receivers;
- and
- determining whether the multi-site interference event is a tropospheric ducting event based on the plurality of tropospheric ducting factors,
- wherein the plurality of tropospheric ducting factors includes an interference directionality factor that indicates a dominant interference azimuth direction for the interference received in the at least one channel.
A wireless telecommunications system comprising a spectrum analysis server, the spectrum analysis server comprising a processor and a non-transitory computer readable medium with instructions stored thereon which, when executed by the processor, perform the following steps:
- determining a multi-site interference event affecting at least one channel of a plurality of receivers in the wireless network using the configuration data and the performance data;
- analyzing a plurality of tropospheric ducting factors for the plurality of receivers;
- and
- determining whether the multi-site interference event is a tropospheric ducting event based on the plurality of tropospheric ducting factors, wherein the plurality of tropospheric ducting factors includes an interference directionality factor that indicates a dominant interference direction for the interference received in the at least one channel.
Dependencies are inferred from the claim text.