Dynamic determination of available slots for transmission of sounding reference signal (SRS) information
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, configuration information regarding one or more available slots associated with transmitting sounding reference signal (SRS) information. The UE may receive, from the base station, dynamic downlink communication including slot information for determining a select available slot from among the one or more available slots. The UE may transmit, to the base station, the SRS information during the select available slot, determined based at least in part on the slot information and the configuration information. Numerous other aspects are described.
1. A method of wireless communication performed by a user equipment (UE), comprising:
receiving, from a base station, configuration information regarding a set of available slots associated with transmitting sounding reference signal (SRS) information in an SRS resource set;
receiving, from the base station, dynamic downlink communication including a set of slot information values, the slot information values each indicating a select available slot of the set of available slots; and
transmitting, to the base station, the SRS information during the select available slot, determined based at least in part on the set of slot information values and the configuration information.
2. The method of claim 1 , wherein the set of available slots are included in an available-slot list.
3. The method of claim 1 , further comprising:
determining the select available slot based at least in part on a slot factor, associated with a format related to a given slot, and an initial available slot value, the slot factor being received via the dynamic downlink communication and the initial available slot value being received via the configuration information.
4. The method of claim 1 , wherein the set of slot information values includes a slot factor indicating whether a given slot is an uplink slot reserved for uplink communications from the UE to the base station or is a downlink slot reserved for downlink communications from the base station to the UE.
5. The method of claim 1 , wherein the dynamic downlink communication includes downlink control information (DCI) received during a reference slot, the DCI including the set of slot information values.
6. The method of claim 1 , wherein the select available slot occurs a given quantity of slots after a reference slot, indicated by the configuration information.
7. The method of claim 1 , wherein
the dynamic downlink communication includes downlink control information (DCI), and
one or more bits included in the DCI indicate the set of slot information values.
8. The method of claim 1 , wherein
the dynamic downlink communication includes downlink control information (DCI), and
one or more bits included in the DCI indicate the set of slot information values, a quantity of the one or more bits being based at least in part on a quantity of the set of available slots.
9. The method of claim 8 , wherein the quantity of the one or more bits is based at least in part on a maximum number of available slots associated with a set of available slots of a plurality of sets of available slots.
10. The method of claim 9 , wherein the plurality of sets of available slots are associated with at least one component carrier.
11. The method of claim 1 , wherein
the set of available slots are included in a plurality of available-slot lists, and
the dynamic downlink communication includes a medium access control control element (MAC CE) and downlink control information (DCI), the MAC CE indicating a given available-slot list from among the plurality of available-slot lists and the DCI including the set of slot information values associated with determining the available slot from the given available-slot list indicated by the MAC CE.
12. The method of claim 1 , wherein
the set of available slots are included in an available-slot list, and
the dynamic downlink communication includes a medium access control control element (MAC CE) and downlink control information (DCI), the MAC CE indicating a subset of the set of available slots and the DCI including the set of slot information values associated with determining the available slot from the subset of the set of available slots indicated by the MAC CE.
13. A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors coupled to the memory, the one or more processors configured to:
receive, from a base station, configuration information regarding a set of available slots associated with transmitting sounding reference signal (SRS) information in an SRS resource set;
receive, from the base station, dynamic downlink communication including a set of slot information values, the slot information values each indicating a select available slot of the set of available slots; and
transmit, to the base station, the SRS information during the select available slot, determined based at least in part on the set of slot information values and the configuration information.
14. The UE of claim 13 , wherein the set of available slots are included in an available-slot list.
15. The UE of claim 13 , wherein the one or more processors are further configured to:
determine the select available slot based at least in part on a slot factor, associated with a format related to a given slot, and an initial available slot value, the slot factor being received via the dynamic downlink communication and the initial available slot value being received via the configuration information.
16. The UE of claim 13 , wherein the set of slot information values includes a slot factor indicating whether a given slot is an uplink slot reserved for uplink communications from the UE to the base station or is a downlink slot reserved for downlink communications from the base station to the UE.
17. The UE of claim 13 , wherein the dynamic downlink communication includes downlink control information (DCI) received during a reference slot, the DCI including the set of slot information values.
18. The UE of claim 13 , wherein the select available slot occurs a given quantity of slots after a reference slot, indicated by the configuration information.
19. The UE of claim 13 , wherein
the dynamic downlink communication includes downlink control information (DCI), and
one or more bits included in the DCI indicate the set of slot information values.
20. The UE of claim 13 , wherein
the dynamic downlink communication includes downlink control information (DCI), and
one or more bits included in the DCI indicate the set of slot information values, a quantity of the one or more bits being based at least in part on a quantity of the set of available slots.
21. The UE of claim 20 , wherein the quantity of the one or more bits is based at least in part on a maximum number of available slots associated with a set of available slots of a plurality of sets of available slots.
22. The UE of claim 21 , wherein the plurality of sets of available slots are associated with at least one component carrier.
23. The UE of claim 13 , wherein
the set of available slots are included in a plurality of available-slot lists, and
the dynamic downlink communication includes a medium access control control element (MAC CE) and downlink control information (DCI), the MAC CE indicating a given available-slot list from among the plurality of available-slot lists and the DCI including the set of slot information values associated with determining the available slot from the given available-slot list indicated by the MAC CE.
24. The UE of claim 13 , wherein
the set of available slots are included in an available-slot list, and
the dynamic downlink communication includes a medium access control control element (MAC CE) and downlink control information (DCI), the MAC CE indicating a subset of the set of available slots and the DCI including the set of slot information values associated with determining the available slot from the subset of the set of available slots indicated by the MAC CE.
25. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:
receive, from a base station, configuration information regarding a set of available slots associated with transmitting sounding reference signal (SRS) information in an SRS resource set;
receive, from the base station, dynamic downlink communication including a set of slot information values, the slot information values each indicating a select available slot of the set of available slots; and
transmit, to the base station, the SRS information during the select available slot, determined based at least in part on the set of slot information values and the configuration information.
26. An apparatus for wireless communication, comprising:
means for receiving, from a base station, configuration information regarding a set of available slots associated with transmitting sounding reference signal (SRS) information in an SRS resource set;
means for receiving, from the base station, dynamic downlink communication including slot information values, the slot information values each indicating a select available slot of the set of available slots; and
means for transmitting, to the base station, the SRS information during the select available slot, determined based at least in part on the set of slot information values and the configuration information.