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US 10,945,172 B2Granted
Power control for bandwidth part switching
AssigneeComcast Cable Communications, LLC
InventorsHyoungsuk Jeon, Esmael Hejazi Dinan, Hua Zhou, Alireza Babaei, Kyungmin Park
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Abstract
Systems, apparatuses, and methods are described for wireless communications. A base station may configure a power control process associated with a wireless device. Closed-loop power control (CL-CP) for the wireless device may be reset based on a change of channel conditions. The wireless device may change a transmit power and/or reset the CL-CP based on various conditions.
Claims26
A method comprising:
- switching, by a wireless device, from a first bandwidth part (BWP) to a second BWP as an active BWP of a cell;
- based on a determination whether the second BWP overlaps with the first BWP in a frequency band, maintaining or resetting a closed loop power control parameter;
- determining, based on the closed loop power control parameter, a first transmission power for transmitting at least one uplink transport block via the second BWP;
- and
- transmitting, via the second BWP and based on the first transmission power, the at least one uplink transport block.
2 more elements
A method comprising:
- receiving, by a wireless device, a message, for a cell, indicating a switching from a first bandwidth part (BWP) to a second BWP;
- switching from the first BWP to the second BWP as an active BWP of the cell;
- based on a determination whether the second BWP overlaps with the first BWP in a frequency band, maintaining or resetting a closed loop power control parameter;
- determining, based on the closed loop power control parameter, a first transmission power for transmitting at least one uplink transport block via the second BWP;
- and
- transmitting, via the second BWP and based on the first transmission power, the at least one uplink transport block.
3 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:
- switch from a first bandwidth part (BWP) to a second BWP as an active BWP of a cell;
- based on a determination whether the second BWP overlaps with the first BWP in a frequency band, maintain or reset a closed loop power control parameter;
- determine, based on the closed loop power control parameter, a first transmission power for transmitting at least one uplink transport block via the second BWP;
- and
- transmit, via the second BWP and based on the first transmission power, the at least one uplink transport block.
5 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 a message, for a cell, indicating, for a cell, a switching from a first bandwidth part (BWP) to a second BWP;
- switch from the first BWP to the second BWP as an active BWP of the cell;
- based on a determination whether the second BWP overlaps with the first BWP in a frequency band, maintain or reset a closed loop power control parameter;
- determine, based on the closed loop power control parameter, a first transmission power for transmitting at least one uplink transport block via the second BWP;
- and
- transmit, via the second BWP and based on the first transmission power, the at least one uplink transport block.
6 more elements
Dependencies are inferred from the claim text.