Channel state information transmission resource reconfiguration
A wireless device transmits to a base station, channel state information (CSI) of a secondary cell via a first cell of a plurality of cells. One or more configuration parameters indicating that CSI transmission resources for the secondary cell are received in a first subframe via a second cell different from the first cell. Transmission of CSI of the secondary cell via the first cell is stopped in a second subframe occurring a first quantity of subframes after the first subframe. Transmission of CSI of the secondary cell via the second cell is started in a third subframe occurring a second quantity of subframes after the first subframe. The second quantity is greater than the first quantity.
1. A method comprising:
transmitting, by a wireless device to a base station, channel state information (CSI) of a secondary cell via a first cell of a plurality of cells;
receiving, in a first subframe, one or more configuration parameters indicating that CSI transmission resources for the secondary cell are via a second cell different from the first cell;
stopping, in a second subframe occurring a first quantity of subframes after the first subframe, transmission of CSI of the secondary cell via the first cell; and
starting, in a third subframe occurring a second quantity of subframes after the first subframe, transmission of CSI of the secondary cell via the second cell, wherein the second quantity is greater than the first quantity.
2. The method of claim 1 , wherein the wireless device maintains an activation status for the secondary cell after receiving the one or more configuration parameters and until the third subframe occurring the second quantity of subframes after the first subframe.
3. The method of claim 1 , wherein the one or more configuration parameters are not configured to cause a change in an activation status of the secondary cell.
4. The method of claim 1 , further comprising receiving a second message comprising one or more second configuration parameters indicating second CSI transmission resources for the secondary cell, the second CSI transmission resources being on the first cell.
5. The method of claim 1 , wherein the plurality of cells are grouped into a plurality of physical uplink control channel PUCCH groups comprising:
a primary PUCCH group comprising the first cell with a primary PUCCH transmitted to a base station; and
a secondary PUCCH group comprising the second cell with a secondary PUCCH transmitted to the base station.
6. The method of claim 1 , wherein the first cell is a primary cell and the second cell is a PUCCH secondary cell.
7. The method of claim 1 , wherein the first cell is a PUCCH secondary cell and the second cell is a primary cell.
8. The method of claim 1 , wherein the second cell is initially deactivated when configured.
9. The method of claim 1 , further comprising transmitting or receiving at least one transport block in a subframe between the first subframe and the third subframe occurring the second quantity of subframes after the first subframe.
10. The method of claim 1 , further comprising monitoring a control channel in subframes from the first subframe to the third subframe occurring the second quantity of subframes after the first subframe.
11. A method comprising:
receiving, by a base station from a wireless device, channel state information (CSI) of a secondary cell via a first cell of a plurality of cells;
transmitting, in a first subframe, one or more configuration parameters indicating that CSI transmission resources for the secondary cell is via a second cell different from the first cell;
stopping, in a second subframe occurring a first quantity of subframes after the first subframe, reception of CSI of the secondary cell via the first cell from the wireless device; and
starting, in a third subframe occurring a second quantity of subframes after the first subframe, reception of CSI of the secondary cell via the second cell from the wireless device, wherein the second quantity is greater than the first quantity.
12. The method of claim 11 , further comprising maintaining an activation status of the secondary cell in the wireless device after transmitting a message and until the third subframe occurring the second quantity of subframes after the first subframe.
13. The method of claim 11 , wherein the one or more configuration parameters are not configured to cause a change in an activation status of the secondary cell.
14. The method of claim 11 , further comprising transmitting a second message comprising one or more first configuration parameters indicating second CSI transmission resources for the secondary cell, the second CSI transmission resources on the first cell.
15. The method of claim 11 , wherein the plurality of cells are grouped into a plurality of physical uplink control channel PUCCH groups comprising:
a primary PUCCH group comprising the first cell with a primary PUCCH received by the base station; and
a secondary PUCCH group comprising the second cell with a secondary PUCCH received by the base station.
16. The method of claim 11 , wherein the first cell is a primary cell and the second cell is a PUCCH secondary cell.
17. The method of claim 11 , wherein the first cell is a PUCCH secondary cell and the second cell is a primary cell.
18. The method of claim 11 , wherein the second cell is initially deactivated in the wireless device when configured.
19. The method of claim 11 , further comprising transmitting or receiving at least one transport block in a subframe between the first subframe and the third subframe occurring the second quantity of subframes after the first subframe.
20. The method of claim 11 , further comprising transmitting to the wireless device a control channel in subframes from the first subframe to the third subframe occurring the second quantity of subframes after the first subframe.