PUCCH cell switching and CSI reporting
A wireless device determines first timings that a first cell and second timings that a second cell is the applicable cell for PUCCH transmission. The wireless device may transmit a first scheduled CSI report in a first report timing via the first cell based on the first report timing being within the first timings. The wireless device may drop a second scheduled CSI report, scheduled for transmission in a second report timing via the first cell, based on the second report timing being within the second timings.
1. A method comprising:
receiving, by a wireless device:
first configuration parameters of a first cell and a second cell;
channel state information (CSI) report configuration parameters for CSI reports via the first cell; and
a second configuration parameter of a time domain pattern indicating first timings that the first cell is the physical uplink control channel (PUCCH) cell for PUCCH transmission and second timings that the second cell is the PUCCH cell for PUCCH transmission;
transmitting a first CSI report, scheduled for transmission via the first cell in a first report timing, based on the first report timing being within the first timings; and
dropping a second CSI report, scheduled for transmission via the first cell in a second report timing, based on the second report timing being within the second timings.
2. The method of claim 1 , wherein the CSI report configuration parameters are for periodic CSI reports or semi-persistent CSI reports.
3. The method of claim 1 , wherein the CSI report configuration parameters are for transmission of CSI reports via a PUCCH of the first cell.
4. The method of claim 1 , wherein the time domain pattern indicates a cell switching pattern for PUCCH transmission.
5. The method of claim 1 , wherein the first report timing and the second report timing are based on the CSI report configuration parameters.
6. The method of claim 1 , wherein the first report timing and the second report timing are based on a subcarrier spacing of an active bandwidth part of the first cell.
7. The method of claim 1 , wherein the first timings and the second timings are based on a reference subcarrier spacing.
8. The method of claim 7 , wherein the reference subcarrier spacing is a first subcarrier spacing associated with the first cell.
9. The method of claim 1 , wherein the first cell and the second cell are in the same PUCCH group.
10. The method of claim 9 , wherein the PUCCH group is a primary PUCCH group or a secondary PUCCH group.
11. 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:
first configuration parameters of a first cell and a second cell;
channel state information (CSI) report configuration parameters for CSI reports via the first cell; and
a second configuration parameter of a time domain pattern indicating first timings that the first cell is the physical uplink control channel (PUCCH) cell for PUCCH transmission and second timings that the second cell is the PUCCH cell for PUCCH transmission;
transmit a first CSI report, scheduled for transmission via the first cell in a first report timing, based on the first report timing being within the first timings; and
drop a second CSI report, scheduled for transmission via the first cell in a second report timing, based on the second report timing being within the second timings.
12. The wireless device of claim 11 , wherein the CSI report configuration parameters are for periodic CSI reports or semi-persistent CSI reports.
13. The wireless device of claim 11 , wherein the time domain pattern indicates a cell switching pattern for PUCCH transmission.
14. The wireless device of claim 11 , wherein first report timing and the second report timing are based on the CSI report configuration parameters.
15. The wireless device of claim 11 , wherein the first report timing and the second report timing are based on a subcarrier spacing of an active bandwidth part of the first cell.
16. The wireless device of claim 11 , wherein the first timings and the second timings are based on a reference subcarrier spacing.
17. The wireless device of claim 16 , wherein the reference subcarrier spacing is a first subcarrier spacing associated with the first cell.
18. The wireless device of claim 11 , wherein the first cell and the second cell are in the same PUCCH group.
19. The wireless device of claim 18 , wherein the PUCCH group is a primary PUCCH group or a secondary PUCCH group.
20. A system comprising:
a base station; and
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, from the base station, first configuration parameters of a first cell and a second cell; channel state information (CSI) report configuration parameters for CSI reports via the first cell; and a second configuration parameter of a time domain pattern indicating first timings that the first cell is the physical uplink control channel (PUCCH) cell for PUCCH transmission and second timings that the second cell is the PUCCH cell for PUCCH transmission; transmit a first CSI report, scheduled for transmission via the first cell in a first report timing, based on the first report timing being within the first timings; and drop a second CSI report, scheduled for transmission via the first cell in a second report timing, based on the second report timing being within the second timings.