Default spatial relation for physical uplink shared channel transmissions
A wireless device may receive one or more configuration parameters. The one or more configuration parameters indicate: one or more physical uplink control channel (PUCCH) resources, and a default beam is used for physical uplink shared channel (PUSCH) transmissions. The wireless device may receive downlink control information (DCI), with DCI format 0_0, scheduling a PUSCH. The wireless device may transmit, via the PUSCH, a transport block according to a default spatial relation in response to: a DCI format of the DCI being the DCI format 0_0, the configuration parameters indicating that the default beam is used, each PUCCH resource of the one or more PUCCH resources not being configured with a spatial relation, and the wireless device being in a radio resource control (RRC) connected mode.
1. 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 one or more configuration parameters indicating:
one or more physical uplink control channel (PUCCH) resources; and
a default beam is used for physical uplink shared channel (PUSCH) transmissions;
receive downlink control information (DCI), with DCI format 0_0, scheduling a PUSCH; and
transmit, via the PUSCH, a transport block according to a default spatial relation in response to:
a DCI format of the DCI being the DCI format 0_0;
the one or more configuration parameters indicating that the default beam is used;
each PUCCH resource of the one or more PUCCH resources not being configured with a spatial relation; and
the wireless device being in a radio resource control (RRC) connected mode.
2. The wireless device of claim 1 , wherein the DCI:
comprises an uplink grant for the PUSCH; and
does not comprise spatial relation information for the uplink grant.
3. The wireless device of claim 1 , wherein the instructions further cause the wireless device to transmit the transport block with a spatial domain transmission filter determined based on the default spatial relation.
4. The wireless device of claim 3 , wherein:
the default spatial relation is determined based on one or more downlink reference signals; and
the one or more downlink reference signals are:
one or more channel state information reference signals (CSI-RSs); or
one or more synchronization signal blocks (SSBs).
5. The wireless device of claim 1 , wherein the one or more configuration parameters are received in one or more RRC messages.
6. The wireless device of claim 5 , wherein the wireless device is in RRC connected mode when the one or more RRC messages are received.
7. The wireless device of claim 1 , wherein the one or more configuration parameters further indicate one or more control resource sets (coresets) are quasi co-located with one or more downlink reference signals.
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, to a wireless device, one or more configuration parameters indicating:
one or more physical uplink control channel (PUCCH) resources; and
a default beam is used for physical uplink shared channel (PUSCH) transmissions;
transmit, to the wireless device, downlink control information (DCI), with DCI format 0_0, scheduling a PUSCH; and
receive, from the wireless device via the PUSCH, a transport block according to a default spatial relation in response to:
a DCI format of the DCI being the DCI format 0_0;
the one or more configuration parameters indicating that the default beam is used;
each PUCCH resource of the one or more PUCCH resources not being configured with a spatial relation; and
the wireless device being in a radio resource control (RRC) connected mode.
9. The base station of claim 8 , wherein the DCI:
comprises an uplink grant for the PUSCH; and
does not comprise spatial relation information for the uplink grant.
10. The base station of claim 8 , wherein the instructions further cause the wireless device to transmit the transport block with a spatial domain transmission filter determined based on the default spatial relation.
11. The base station of claim 10 , wherein:
the default spatial relation is determined based on one or more downlink reference signals; and
the one or more downlink references signals are:
one or more channel state information reference signals (CSI-RSs); or
one or more synchronization signal blocks (SSBs).
12. The base station of claim 8 , wherein the one or more configuration parameters are transmitted in one or more radio resource control (RRC) messages.
13. The base station of claim 12 , wherein the wireless device is in RRC connected mode when the one or more RRC messages are transmitted.
14. The base station of claim 8 , wherein one or more configuration parameters further indicate one or more control resource sets (coresets) are quasi co-located with one or more downlink reference signals.
15. A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the wireless device to:
receive one or more configuration parameters indicating:
one or more physical uplink control channel (PUCCH) resources; and
a default beam is used for physical uplink shared channel (PUSCH) transmissions;
receive downlink control information (DCI), with DCI format 0_0, scheduling a PUSCH; and
transmit, via the PUSCH, a transport block according to a default spatial relation in response to:
a DCI format of the DCI being the DCI format 0_0;
the one or more configuration parameters indicating that the default beam is used;
each PUCCH resource of the one or more PUCCH resources not being configured with a spatial relation; and
the wireless device being in a radio resource control (RRC) connected mode.
16. The non-transitory computer-readable medium of claim 15 , wherein the DCI:
comprises an uplink grant for the PUSCH; and
does not comprise spatial relation information for the uplink grant.
17. The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the wireless device to transmit the transport block with a spatial domain transmission filter determined based on the default spatial relation.
18. The non-transitory computer-readable medium of claim 15 , wherein the default spatial relation is determined based on one or more downlink reference signals.
19. The non-transitory computer-readable medium of claim 18 , wherein the one or more downlink references signals are:
one or more channel state information reference signals (CSI-RSs); or
one or more synchronization signal blocks (SSBs).
20. The non-transitory computer-readable medium of claim 15 , wherein the one or more configuration parameters further indicate one or more control resource sets (coresets) are quasi co-located with one or more downlink reference signals.