Downlink reception in multiple transmission and reception points
A wireless device may determine that a reference signal associated with a first control resource set (coreset) pool index overlaps in time with a downlink signal associated with a second coreset pool index. Based on the first coreset pool index and the second coreset pool index being the same, the wireless device may receive the reference signal with a transmission configuration indicator (TCI) state of the downlink signal.
1. A method comprising:
determining, by a wireless device, that a reference signal associated with a first control resource set (coreset) pool index overlaps in time with a downlink signal associated with a second coreset pool index, wherein:
the first coreset pool index is associated with a plurality of first coresets with a plurality of first coreset indexes; and
the second coreset pool index is associated with a plurality of second coresets with a plurality of second coreset indexes; and
based on the first coreset pool index and the second coreset pool index being the same, receiving the reference signal with a transmission configuration indicator (TCI) state of the downlink signal.
2. The method of claim 1 , wherein the reference signal is an aperiodic channel state information reference signal.
3. The method of claim 1 , further comprising receiving, via a first coreset with the first coreset pool index, first downlink control information (DCI) triggering transmission of the reference signal.
4. The method of claim 3 , further comprising receiving, via a second coreset with the second coreset pool index, second DCI scheduling the downlink signal.
5. The method of claim 3 , wherein a scheduling offset between the first DCI and the reference signal is less than a beam switch timing threshold.
6. The method of claim 3 , determining that a scheduling offset between the first DCI and the reference signal is less than a beam switch timing threshold.
7. The method of claim 1 , further comprising receiving, from a base station, one or more configuration parameters indicating one or more trigger states of transmission of the reference signal.
8. The method of claim 1 , further comprising:
determining that a second reference signal associated with a third coreset pool index overlaps in time with a second downlink signal associated with a fourth coreset pool index; and
based on the third coreset pool index and the fourth coreset pool index being different, dropping at least one of:
the second reference signal; or
the second downlink signal.
9. The method of claim 1 , wherein the downlink signal is a physical downlink shared channel (PDSCH) transmission or a second reference signal.
10. The method of claim 1 , wherein the reference signal and the downlink signal overlapping in time comprises the reference signal and the downlink signal overlapping in at least one symbol.
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:
determine that a reference signal associated with a first control resource set (coreset) pool index overlaps in time with a downlink signal associated with a second coreset pool index, wherein:
the first coreset pool index is associated with a plurality of first coresets with a plurality of first coreset indexes; and
the second coreset pool index is associated with a plurality of second coresets with a plurality of second coreset indexes; and
based on the first coreset pool index and the second coreset pool index being the same, receive the reference signal with a transmission configuration indicator (TCI) state of the downlink signal.
12. The wireless device of claim 11 , wherein the reference signal is an aperiodic channel state information reference signal.
13. The wireless device of claim 11 , wherein the instructions further cause the wireless device to receive, via a first coreset with the first coreset pool index, first downlink control information (DCI) triggering transmission of the reference signal.
14. The wireless device of claim 13 , wherein the instructions further cause the wireless device to receive, via a second coreset with the second coreset pool index, second DCI scheduling the downlink signal.
15. The wireless device of claim 13 , wherein a scheduling offset between the first DCI and the reference signal is less than a beam switch timing threshold.
16. The wireless device of claim 13 , wherein the instructions further cause the wireless device to determine that a scheduling offset between the first DCI and the reference signal is less than a beam switch timing threshold.
17. The wireless device of claim 11 , wherein the instructions further cause the wireless device to determine receive, from a base station, one or more configuration parameters indicating one or more trigger states of transmission of the reference signal.
18. The wireless device of claim 11 , wherein the instructions further cause the wireless device to, based on the first coreset pool index and the second coreset pool index being different, drop at least one of:
the reference signal; or
the downlink signal.
19. The wireless device of claim 11 , wherein the downlink signal is a physical downlink shared channel (PDSCH) transmission or a second reference signal.
20. A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors, cause the one or more processors to:
determine that a reference signal associated with a first control resource set (coreset) pool index overlaps in time with a downlink signal associated with a second coreset pool index wherein:
the first coreset pool index is associated with a plurality of first coresets with a plurality of first coreset indexes; and
the second coreset pool index is associated with a plurality of second coresets with a plurality of second coreset indexes; and
based on the first coreset pool index and the second coreset pool index being the same, receive the reference signal with a transmission configuration indicator (TCI) state of the downlink signal.