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US 12,425,962 B2Granted
Searching for control channels in a wireless network
AssigneeWireless Future Technologies Inc.
InventorsFrank Frederiksen, Troels Emil Kolding
Life of this patent
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Abstract
A user equipment (UE) may receive an OFDM signal having control channel elements (CCEs). The CCEs may be arranged in levels where a first level aggregates less CCEs than a second level. A processor may search for a control channel from control channel candidates that is comprised of the CCEs. A limited number of CCEs may be searched on the first level.
Claims20
A method of operating a user equipment (UE), the method comprising:
- receiving control channel information;
- and
- searching control channel elements for a control channel in the control channel information by decoding control channels comprising one or more control channel elements using a UE specific identifier and a common identifier, the one or more control channel elements being aggregated according to three or more aggregation levels, wherein control channels at a highest aggregation level comprise a single control channel element and control channels at lower aggregation levels comprise a plurality of consecutive control channel elements, wherein the searching control channel elements is limited at each of the three or more aggregation levels, and wherein the searching control channel elements is increased more the lower the level of the three or more aggregation levels.
A device comprising:
- a receiver operable to receive control channel information;
- and
- circuitry operable to search control channel elements for a control channel in the control channel information by decoding control channels comprising one or more control channel elements using a device specific identifier and a common identifier, the one or more control channel elements being aggregated according to three or more aggregation levels, wherein control channels at a highest aggregation level comprise a single control channel element and control channels at lower aggregation levels comprise a plurality of consecutive control channel elements, wherein the search of control channel elements is limited at each of the three or more aggregation levels, and the search of control channel elements is increased more the lower the level of the three or more aggregation levels.
A non-transitory computer readable medium comprising a set of instructions that, when executed by a processor of a user equipment (UE), causes the UE to:
- receive control channel information;
- and
- search control channel elements for a control channel in the control channel information by decoding control channels comprising one or more control channel elements using a UE specific identifier and a common identifier, the one or more control channel elements being aggregated according to three or more aggregation levels, wherein control channels at a highest aggregation level comprise a single control channel element and control channels at lower aggregation levels comprise a plurality of consecutive control channel elements, wherein the search of control channel elements is limited at each of the three or more aggregation levels, and the search of control channel elements is increased more the lower the level of the three or more aggregation levels.
Dependencies are inferred from the claim text.