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US 10,856,327 B2Granted
Energy detection threshold in a wireless device and wireless network
AssigneeOfinno, LLC
InventorsAlireza Babaei, Esmael Hejazi Dinan
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Abstract
A wireless device receives one or more downlink control information (DCI) comprising transmission parameters for a plurality of signals and one or more power control commands. The wireless device calculates a transmission power of each of the plurality of signals employing the one or more power control commands. The wireless device calculates an energy detection threshold based, at least in part, on the transmission power of the plurality of signals. The wireless device performs a listen before talk (LBT) procedure employing the energy detection threshold.
Claims20
A method comprising:
- receiving one or more messages comprising configuration parameters for a licensed assisted access (LAA) cell;
- receiving one or more downlink control information (DCI) comprising:
- transmission parameters for a plurality of consecutive signals, wherein each of the plurality of consecutive signals is for transmission via the LAA cell;
- and
- one or more power control commands for the plurality of consecutive signals;
- calculating a plurality of transmission powers for the plurality of consecutive signals for transmission via the LAA cell employing the one or more power control commands and a pathloss value for the LAA cell;
- calculating a plurality of energy detection thresholds, each being based on a corresponding transmission power of the plurality of transmission powers for the plurality of consecutive signals for transmission via the LAA cell;
- performing a listen before talk (LBT) procedure employing a minimum energy detection threshold of the plurality of calculated energy detection thresholds;
- and
- transmitting, via the LAA cell, the plurality of consecutive signals if the LBT procedure indicates a clear channel.
7 more elements
A wireless device comprising:
- one or more processors;
- and
- memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
- receive one or more messages comprising configuration parameters for a licensed assisted access (LAA) cell;
- receive one or more downlink control information (DCI) comprising:
- transmission parameters for a plurality of consecutive signals, wherein each of the plurality of consecutive signals is for transmission via the LAA cell;
- and
- one or more power control commands for the plurality of consecutive signals;
- calculate a transmission powers for the plurality of consecutive signals for transmission via the LAA cell employing the one or more power control commands and a pathloss value for the LAA cell;
- calculate a plurality of energy detection thresholds, each being based on a corresponding transmission power of the plurality of transmission powers for the plurality of consecutive signals for transmission via the LAA cell;
- perform a listen before talk (LBT) procedure employing a minimum energy detection threshold of the plurality of calculated energy detection thresholds;
- and
- transmitting the plurality of consecutive signals if the LBT procedure indicates a clear channel.
10 more elements
Dependencies are inferred from the claim text.