Interference detection with UE signal subtraction
AssigneeSpectrum Effect Inc.
InventorsChaz Immendorf, Rekha Menon, Eamonn Gormley
Life of this patent
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Abstract
Interference may be detected in a cellular network by receiving signals at a target base station in a quiet resource block in which no uplink transmissions to the target base station are scheduled to occur, identifying a plurality of user equipment attached to base stations neighboring a target base station as interfering user equipment, reconstructing signals transmitted by the interfering user equipment, removing the reconstructed signals from the signals received by the target base station in the quiet resource block, and determining interference in the signals from which the reconstructed signals are removed. Detected interference data can be used to create an interference cancelling receiver.
Claims22
A method for identifying interference in a cellular network, the method comprising:
- receiving interfering signals at a target base station in a quiet resource block in which no uplink transmissions to the target base station are scheduled to occur;
- determining identities of each individual user equipment of a plurality of user equipment attached to base stations neighboring the target base station as interfering user equipment;
- reconstructing signals transmitted by the interfering user equipment;
- removing the reconstructed signals from the signals received by the target base station in the quiet resource block;
- and
- determining interference in the signals from which the reconstructed signals are removed.
A system for detecting interference in a cellular network, the system comprising:
- a plurality of base stations including a target base station;
- a memory;
- a processor;
- and
- one or more non-transitory computer readable medium associated with the processor, the one or more computer readable medium having computer executable instructions stored thereon which, when executed by associated one or more processor, perform the following steps:
- determining identities of each individual user equipment of a plurality of user equipment attached to base stations neighboring the target base station as interfering user equipment;
- receiving interfering signals at the target base station in a quiet resource block in which no uplink transmissions to the target base station are scheduled to occur;
- reconstructing signals transmitted by the interfering user equipment;
- removing the reconstructed signals from the signals received by the target base station in the quiet resource block;
- and
- determining interference in the signals from which the reconstructed signals are removed.
Dependencies are inferred from the claim text.