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US 9,572,055 B2Granted
Uplink interference detection using transmission matrices
AssigneeSpectrum Effect Inc.
InventorsChaz Immendorf, Rekha Menon, Eamonn Gormley
Life of this patent
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Abstract
Identifying interference in a cellular network may include creating an interference neighbor list for a target base station that includes a plurality of neighboring base stations, determining a plurality of quiet resource blocks common to the plurality of neighboring base stations and the target base station, and analyzing signals received at the target base station during the plurality of quiet resource blocks. Whether to modify uplink transmission schedules, and the extent of modification, may be determined based on traffic levels.
Claims26
A method for identifying interference in a cellular network, the method comprising:
- creating an interference neighbor list for a target base station that includes a plurality of neighboring base stations;
- determining a plurality of quiet resource blocks common to all of the plurality of neighboring base stations on the interference neighbor list and the target base station;
- and
- analyzing data corresponding to interference received at the target base station during the plurality of quiet resource blocks,
- wherein determining the plurality of quiet resource blocks comprises:
- designating a plurality of resource block indices in uplink transmission schedules of the plurality of neighboring base stations and the target base station;
- and
- allocating one or more quiet resource blocks to the plurality of resource block indices.
5 more elements
A system for identifying interference in a cellular network, the system comprising:
- a plurality of base stations;
- and
- a memory;
- a processor;
- and
- one or more non-transitory computer readable medium associated with the processor, the one or more non-transitory computer readable medium having computer executable instructions stored thereon which, when executed by an associated one or more processor, perform the following steps:
- creating an interference neighbor list for a target base station that includes a plurality of neighboring base stations;
- determining a plurality of quiet resource blocks common to all of the plurality of neighboring base stations on the interference neighbor list and the target base station;
- and
- analyzing data corresponding to interference received by the target base station during the plurality of quiet resource blocks,
- wherein determining the plurality of quiet resource blocks comprises:
- designating a plurality of resource block indices in uplink transmission schedules of the plurality of neighboring base stations and the target base station;
- and
- allocating one or more quiet resource blocks to the plurality of resource block indices.
11 more elements
A method for identifying interference in a cellular network, the method comprising:
- creating an interference neighbor list for a target base station that includes a plurality of neighboring base stations;
- determining a plurality of quiet resource blocks common to all of the plurality of neighboring base stations on the interference neighbor list and the target base station;
- and
- analyzing data corresponding to interference received at the target base station during the plurality of quiet resource blocks,
- wherein determining the plurality of quiet resource blocks comprises:
- calculating an average number of quiet resource blocks present in a schedule of at least one base station among the plurality of neighboring base stations;
- comparing the average number of quiet resource blocks to a value;
- and
- when the average number of quiet resource blocks is less than the value, allocating additional quiet resource blocks to an uplink transmission schedule.
6 more elements
A system for identifying interference in a cellular network, the system comprising:
- a plurality of base stations;
- and
- a memory;
- a processor;
- and
- one or more non-transitory computer readable medium associated with the processor, the one or more non-transitory computer readable medium having computer executable instructions stored thereon which, when executed by an associated one or more processor, perform the following steps:
- creating an interference neighbor list for a target base station that includes a plurality of neighboring base stations;
- determining a plurality of quiet resource blocks common to all of the plurality of neighboring base stations on the interference neighbor list and the target base station;
- and
- analyzing data corresponding to interference received by the target base station during the plurality of quiet resource blocks,
- wherein determining the plurality of quiet resource blocks comprises:
- calculating an average number of quiet resource blocks present in a schedule of at least one base station among the plurality of neighboring base stations;
- comparing the average number of quiet resource blocks to a value;
- and
- when the average number of quiet resource blocks is less than the value, allocating additional quiet resource blocks to an uplink transmission schedule.
12 more elements
Dependencies are inferred from the claim text.