Predefined rules in control channel repetition
A wireless device receives an activation command indicating a set of at least two transmission configuration indicator (TCI) states for a control resource set (coreset). In response to the coreset being activated with the at least two TCI states, the wireless device transmits, via an uplink resource, an uplink signal with a transmission parameter determined based on a TCI state that occurs first in the set of the at least two TCI states.
1. A method comprising:
receiving, by a wireless device, a medium access control (MAC) control element (CE) indicating activation of at least two transmission configuration indicator (TCI) states for a control resource set (coreset), wherein octets of the MAC CE comprise TCI state identifiers (IDs) of the at least two TCI states; and
in response to the coreset being activated with the at least two TCI states, transmitting an uplink signal with a spatial domain transmission filter determined based on a TCI state, of the at least two TCI states, with a TCI state ID in an octet occurring first in the octets.
2. The method of claim 1 , further comprising:
selecting, for transmission of the uplink signal, the TCI state in response to the coreset being activated with the at least two TCI states, wherein the coreset is associated with a lowest coreset index in an active downlink bandwidth part of a cell.
3. The method of claim 2 , further comprising receiving one or more messages comprising one or more configuration parameters for the cell.
4. The method of claim 3 , wherein one or more octets, of the octets of the MAC CE, comprise:
a serving cell ID; and
a coreset ID of the coreset.
5. The method of claim 3 , wherein the selecting, for transmission of the uplink signal, the TCI state is based on the one or more configuration parameters comprising a parameter that enables using default transmission parameters for uplink transmissions via the cell.
6. The method of claim 3 , wherein the selecting, for transmission of the uplink signal, the TCI state is based on the one or more configuration parameters not indicating at least one pathloss reference signal.
7. The method of claim 2 , wherein:
the uplink signal is a sounding reference signal (SRS);
the SRS is transmitted via an SRS resource; and
the selecting, for transmission of the SRS, the TCI state is based on the SRS resource not being configured or activated with a spatial relation.
8. The method of claim 2 , wherein:
the uplink signal is transmitted via a physical uplink control channel (PUCCH) resource;
the uplink signal is an uplink control information (UCI) that comprises at least one of:
a scheduling request (SR);
a hybrid automatic repeat request acknowledgement (HARQ-ACK); or
a channel state information (CSI) report; and
the selecting, for transmission of the UCI, the TCI state is based on the PUCCH resource not being configured or activated with a spatial relation.
9. The method of claim 2 , wherein:
the uplink signal is a physical uplink shared channel (PUSCH) transmission;
the PUSCH transmission is transmitted via a PUSCH resource; and
the selecting, for the PUSCH transmission, the TCI state is based on a downlink control information (DCI) format 0_0 scheduling the PUSCH transmission.
10. The method of claim 1 , wherein:
the spatial domain transmission filter is determined based on a reference signal indicated by the TCI state.
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 a medium access control (MAC) control element (CE) indicating activation of at least two transmission configuration indicator (TCI) states for a control resource set (coreset), wherein octets of the medium access control (MAC) control element (CE) comprise TCI state identifier (IDs) of the at least two TCI states; and
in response to the coreset being activated with the at least two TCI states, transmit an uplink signal with a spatial domain transmission filter determined based on a TCI state, of the at least two TCI states, with a TCI state ID in an octet occurring first in the octets.
12. The wireless device of claim 11 , wherein the instructions further cause the wireless device to:
select, for transmission of the uplink signal, the TCI state in response to the coreset being activated with the at least two TCI states, wherein the coreset is associated with a lowest coreset index in an active downlink bandwidth part of a cell.
13. The wireless device of claim 12 , wherein the instructions further cause the wireless device to receive one or more messages comprising one or more configuration parameters for the cell.
14. The wireless device of claim 13 , wherein one or more octets, of the octets of the MAC CE, comprise:
a serving cell ID; and
a coreset ID of the coreset.
15. The wireless device of claim 13 , wherein the selecting, for transmission of the uplink signal, the TCI state is based on the one or more configuration parameters:
not indicating at least one pathloss reference signal; and
comprising a parameter that enables using default transmission parameters for uplink transmissions via the cell.
16. The wireless device of claim 12 , wherein:
the uplink signal is a sounding reference signal (SRS);
the SRS is transmitted via an SRS resource; and
the selecting, for transmission of the SRS, the TCI state is based on the SRS resource not being configured or activated with a spatial relation.
17. The wireless device of claim 12 , wherein:
the uplink signal is transmitted via a physical uplink control channel (PUCCH) resource;
the uplink signal is an uplink control information (UCI) that comprises at least one of:
a scheduling request (SR);
a hybrid automatic repeat request acknowledgement (HARQ-ACK); or
a channel state information (CSI) report; and
the selecting, for transmission of the UCI, the TCI state is based on the PUCCH resource not being configured or activated with a spatial relation.
18. The wireless device of claim 12 , wherein:
the uplink signal is a physical uplink shared channel (PUSCH) transmission;
the PUSCH transmission is transmitted via a PUSCH resource; and
the selecting, for the PUSCH transmission, the TCI state is based on a downlink control information (DCI) format 0_0 scheduling the PUSCH transmission.
19. The wireless device of claim 11 , wherein:
the spatial domain transmission filter is determined based on a reference signal indicated by the TCI state.
20. A system comprising:
a base station comprising:
one or more first processors and first memory storing instructions that, when executed by the one or more first processors, cause the base station to:
transmit a medium access control (MAC) control element (CE) indicating activation of at least two transmission configuration indicator (TCI) states for a control resource set (coreset), wherein octets of the MAC CE comprise TCI state identifiers (IDs) of the at least two TCI states; and
a wireless device station comprising:
one or more second processors and second memory storing instructions that, when executed by the one or more second processors, cause the wireless device to:
receive, from the base station, the MAC CE; and
in response to the coreset being activated with the at least two TCI states, transmit an uplink signal with a spatial domain transmission filter determined based on a TCI state, of the at least two TCI states, with a TCI state ID in an octet occurring first in the octets.