Carrier aggregation configuration based on power headroom report

One or more base stations of a telecommunication network, comprising:

• one or more processors, and
• memory storing computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising:
• providing a first cell;
• providing a second cell;
• receiving a power headroom report (PHR) from a user equipment (UE) connected, via carrier aggregation, to the first cell as a primary cell (PCell) and to the second cell as a secondary cell (SCell), wherein the PHR indicates:
• a PCell power headroom associated with the PCell, and
• an SCell power headroom associated with the SCell;
• determining, based on the PHR, that the SCell power headroom is greater than the PCell power headroom;
• and
• sending, in response to determining that the SCell power headroom is greater than the PCell power headroom, cell swap instructions to the UE, wherein the cell swap instructions cause the UE to switch to using the second cell as the PCell and to using the first cell as the SCell for the carrier aggregation.

A user equipment (UE), comprising:

• one or more processors, and
• memory storing computer-executable instructions that, when executed by the one or more processors, cause the one or more processors to perform operations comprising:
• connecting, via carrier aggregation, to a first cell and to a second cell provided by one or more base stations of a telecommunication network, wherein at a first time, the first cell is a primary cell (PCell) and the second cell is a secondary cell (SCell);
• sending a power headroom report (PHR) to the one or more base stations, wherein the power headroom report indicates a PCell power headroom associated with the PCell and an SCell power headroom associated with the SCell;
• receiving, in response to the PHR, cell swap instructions from the one or more base stations, wherein the cell swap instructions indicate that the UE is to use the second cell as the PCell and the first cell as the SCell for the carrier aggregation;
• and
• swapping, at a second time based on the cell swap instructions, to using the second cell as the PCell and the first cell as the SCell in association with the carrier aggregation.