Tropospheric ducting interference mitigation through UE mode switching
AssigneeT-Mobile Innovations LLC
InventorJasinder Pal Singh
Life of this patent
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Abstract
Methods for mitigating the effects of an atmospheric-based interference event on the propagation of a radio frequency (RF) signal are provided. A wireless communication network may determine that tropospheric ducting is occurring, causing radio frequencies to travel much further than anticipated. In response to the determination of tropospheric ducting interference (TDI), a user equipment (UE) connected a victim base station using standalone time domain duplexing (TDD) may be instructed to at least partially shift communications to using frequency domain duplexing (FDD). When TDI is reduced, the UE is notified the victim base station has been enabled to communicate using standalone TDD.
Claims20
A method for mitigating interference caused by a meteorological condition known as tropospheric ducting in a wireless telecommunication network, the method comprising:
- determining that time of flight interference is occurring during an uplink subframe of a victim cell, wherein the victim cell uses time domain duplexing (TDD) to wirelessly communicate with a UE in a geographic area served by the victim cell;
- and,
- based on said determination, communicating a first set of signals to the geographic area served by the victim cell, the first set of signals comprising one or more instructions that causes the UE to handover from a standalone TDD connection to a dual mode connection using both TDD and frequency domain duplexing (FDD) to wirelessly communicate while in the geographic area.
A system for mitigating interference caused by a meteorological condition known as tropospheric ducting in a wireless telecommunication network, the system comprising:
- one or more non-transitory computer readable media having instructions stored thereon that, when executed by one or more computer processing components, cause the one or more computer processing components to perform operations comprising:
- determining that time of flight interference is occurring during an uplink subframe of a victim cell, wherein the victim cell uses time domain duplexing (TDD) to wirelessly communicate with a UE in a geographic area served by the victim cell;
- and,
- based on said determination, communicating a signal to the geographic area served by the victim cell, the signal comprising one or more instructions that causes the UE to shift to at least partially communicate with the network using frequency domain duplexing (FDD) while in the geographic area.
A non-transitory computer readable media having instructions stored thereon that, when executed by one or more computer processing components, cause the one or more computer processing components to perform a method for mitigating interference caused by a meteorological condition known as tropospheric ducting in a wireless telecommunication network, the method comprising:
- determining that time of flight interference is occurring during an uplink subframe of a victim cell, wherein the victim cell uses time domain duplexing (TDD) to wirelessly communicate with a UE in a geographic area served by the victim cell;
- and,
- based on said determination, communicating a first set of signals to the geographic area served by the victim cell, the first set of signals comprising one or more instructions that causes the UE to handover from a standalone TDD connection to a dual mode connection using TDD and frequency domain duplexing (FDD).
Dependencies are inferred from the claim text.