Transmitting a type 2 power headroom value for a primary cell

1. A method comprising:

transmitting, by a base station, one or more parameters indicating whether simultaneous physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH) transmission is configured for a PUCCH secondary cell; and

receiving a power headroom report, wherein, in response to the PUCCH secondary cell being activated, the power headroom report comprises:

a first Type 2 power headroom value for a primary cell; and

a second Type 2 power headroom value for the PUCCH secondary cell.

2. The method of claim 1 , further comprising transmitting, before the receiving, a first parameter indicating simultaneous PUCCH and PUSCH transmission is not configured for the primary cell of a plurality of cells, wherein the plurality of cells comprise the primary cell and the PUCCH secondary cell.

3. The method of claim 2 , wherein during the receiving, the primary cell is not configured with the simultaneous PUCCH and PUSCH transmission.

4. The method of claim 1 , further comprising:

transmitting, before the receiving, a first parameter indicating whether simultaneous PUCCH and PUSCH transmission is configured for the primary cell of a plurality of cells, the plurality of cells comprising the primary cell and the PUCCH secondary cell; and

wherein a power headroom report comprises, independent of the first parameter, the first Type 2 power headroom value.

5. The method of claim 1 , further comprising transmitting an activation command indicating activation of the PUCCH secondary cell prior to the receiving of the power headroom report.

6. The method of claim 1 , wherein:

one or more path loss values employing signals received on one or more pathloss reference cells are measured by a wireless device; and

one or more values of the power headroom report employing the one or more path loss values are determined by the wireless device.

7. The method of claim 1 , wherein the power headroom report comprises one or more Type 1 power headroom values.

8. A base station comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the base station to:

transmit one or more parameters indicating whether simultaneous physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH) transmission is configured for a PUCCH secondary cell; and

receive a power headroom report, wherein, in response to the PUCCH secondary cell being activated, the power headroom report comprises:

a first Type 2 power headroom value for a primary cell; and

a second Type 2 power headroom value for the PUCCH secondary cell.

9. The base station of claim 8 , wherein the instructions further cause the base station to transmit, before the receiving, a first parameter indicating simultaneous PUCCH and PUSCH transmission is not configured for the primary cell of a plurality of cells, wherein the plurality of cells comprise the primary cell and the PUCCH secondary cell.

10. The base station of claim 9 , wherein during the receiving, the primary cell is not configured with the simultaneous PUCCH and PUSCH transmission.

11. The base station of claim 8 , wherein the instructions further cause the base station to:

transmit, before the receiving, a first parameter indicating whether simultaneous PUCCH and PUSCH transmission is configured for the primary cell of a plurality of cells, the plurality of cells comprising the primary cell and the PUCCH secondary cell; and

wherein a power headroom report comprises, independent of the first parameter, the first Type 2 power headroom value.

12. The base station of claim 8 , wherein the instructions further cause the base station to transmit an activation command indicating activation of the PUCCH secondary cell prior to the receiving of the power headroom report.

13. The base station of claim 8 , wherein:

one or more path loss values employing signals received on one or more pathloss reference cells are measured by a wireless device; and

one or more values of the power headroom report employing the one or more path loss values are determined by the wireless device.

14. The base station of claim 8 , wherein the power headroom report comprises one or more Type 1 power headroom values.

15. A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a base station, cause the base station to:

transmit one or more parameters indicating whether simultaneous physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH) transmission is configured for a PUCCH secondary cell; and

receive a power headroom report, wherein, in response to the PUCCH secondary cell being activated, the power headroom report comprises:

a first Type 2 power headroom value for a primary cell; and

a second Type 2 power headroom value for the PUCCH secondary cell.

16. The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the base station to transmit, before the receiving, a first parameter indicating simultaneous PUCCH and PUSCH transmission is not configured for the primary cell of a plurality of cells, wherein the plurality of cells comprise the primary cell and the PUCCH secondary cell.

17. The non-transitory computer-readable medium of claim 16 , wherein during the receiving, the primary cell is not configured with the simultaneous PUCCH and PUSCH transmission.

18. The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the base station to:

transmit, before the receiving, a first parameter indicating whether simultaneous PUCCH and PUSCH transmission is configured for the primary cell of a plurality of cells, the plurality of cells comprising the primary cell and the PUCCH secondary cell; and

wherein a power headroom report comprises, independent of the first parameter, the first Type 2 power headroom value.

19. The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the base station to transmit an activation command indicating activation of the PUCCH secondary cell prior to the receiving of the power headroom report.

20. The non-transitory computer-readable medium of claim 15 , wherein the power headroom report comprises one or more Type 1 power headroom values.