Available slots for uplink repetition
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine, based at least in part on a measurement gap configuration, a set of available slots for an uplink repetition configuration. The UE may transmit, using at least one slot of the set of available slots, at least one uplink repetition associated with the uplink repetition configuration. Numerous other aspects are described.
1 . A user equipment (UE) for wireless communication, comprising:
memory; and
one or more processors, coupled to the memory, configured to:
determine, based at least in part on a measurement gap configuration, a set of available slots for an uplink repetition configuration;
transmit, to a network node, a slot unavailability indication that indicates one or more slots not available for uplink repetitions; wherein the uplink repetition configuration comprises a Msg3 message of a four-step random access channel procedure, wherein the one or more processors, to transmit the slot unavailability indication, are configured to transmit a signal that carries the slot unavailability indication, and wherein the one or more processors, to transmit the signal, are configured to multiplex the signal with the Msg3 message; and
transmit, using at least one slot of the set of available slots, at least one uplink repetition associated with the uplink repetition configuration.
2 . The UE of claim 1 , wherein a quantity of available slots in the set of available slots corresponds to a physical uplink shared channel aggregation factor associated with the uplink repetition configuration.
3 . The UE of claim 1 , wherein the one or more processors, to determine the set of available slots, are configured to perform a slot counting operation, and wherein the one or more processors, to perform the slot counting operation, are configured to count uplink slots that do not overlap a measurement gap associated with the measurement gap configuration.
4 . The UE of claim 3 , wherein the one or more processors, to perform the slot counting operation, are configured to count uplink slots that are not associated with a time duration during which uplink transmission is not allowed.
5 . The UE of claim 4 , wherein the time duration comprises at least one of a downlink slot or a slot allocated for synchronization signal block transmission.
6 . The UE of claim 3 , wherein the one or more processors, to perform the slot counting operation, are configured to count non-contiguous uplink slots, and wherein the uplink repetition configuration comprises at least one of a paired spectrum repetition or a supplementary uplink repetition.
7 . The UE of claim 6 , wherein the uplink repetition configuration comprises a physical uplink shared channel (PUSCH) repetition configuration of a first type, wherein the PUSCH repetition configuration of the first type corresponds to repetitions having at least one of a same starting symbol in each slot of a plurality of slots or a same duration in each slot of the plurality of slots.
8 . The UE of claim 6 , wherein the uplink repetition configuration comprises a physical uplink shared channel (PUSCH) repetition configuration of a second type, wherein the PUSCH repetition configuration of the second type corresponds to repetitions having at least two slots, of a plurality of slots, different starting symbols, or at least two slots, of the plurality of slots, with different durations.
9 . The UE of claim 1 , wherein the uplink repetition configuration comprises a physical uplink control channel repetition, a physical uplink shared channel repetition, or a Msg3 message of a four-step random access channel procedure.
10 . The UE of claim 1 , wherein the uplink repetition configuration is associated with at least one of a paired spectrum, an unpaired spectrum, or a supplementary uplink configuration.
11 . The UE of claim 1 , wherein the one or more processors are further configured to transmit a timing advance indication.
12 . The UE of claim 11 , wherein a granularity associated with the timing advance indication is less than one millisecond.
13 . The UE of claim 1 , wherein the one or more processors, to transmit the slot unavailability indication, are configured to transmit at least one of a medium access control control element (MAC CE), a radio resource control message, or an uplink control information transmission.
14 . The UE of claim 1 , wherein the one or more processors, to transmit the slot unavailability indication, are configured to transmit a selected demodulation reference signal (DMRS) pattern of a set of potential DMRS patterns in one or more repetitions of a Msg3 message.
15 . The UE of claim 14 , wherein the selected DMRS pattern corresponds to a conflict associated with a specified repetition of the uplink repetition configuration.
16 . A network node for wireless communication, comprising:
memory; and
one or more processors, coupled to the memory, configured to:
receive an indication of a set of available slots for an uplink repetition configuration, wherein the set of available slots is based at least in part on a measurement gap configuration;
receive, from a user equipment (UE), a slot unavailability indication that indicates one or more slots not available for uplink repetitions; wherein the uplink repetition configuration comprises a Msg3 message of a four-step random access channel procedure, wherein the one or more processors, to receive the slot unavailability indication, are configured to receive a signal that carries the slot unavailability indication, and wherein the signal is multiplexed with the Msg3 message; and
receive, using at least one slot of the set of available slots, at least one uplink repetition associated with the uplink repetition configuration.
17 . The network node of claim 16 , wherein a quantity of available slots in the set of available slots corresponds to a physical uplink shared channel aggregation factor associated with the uplink repetition configuration.
18 . The network node of claim 16 , wherein the set of available slots is based at least in part on a slot counting operation, and wherein the slot counting operation corresponds to a count of uplink slots that do not overlap a measurement gap associated with the measurement gap configuration.
19 . The network node of claim 16 , wherein the uplink repetition configuration comprises a physical uplink control channel repetition, a physical uplink shared channel repetition, or a Msg3 message of a four-step random access channel procedure.
20 . The network node of claim 16 , wherein the uplink repetition configuration is associated with at least one of a paired spectrum, an unpaired spectrum, or a supplementary uplink configuration.
21 . The network node of claim 16 , wherein the one or more processors are further configured to receive a timing advance indication.
22 . The network node of claim 16 , wherein the one or more processors, to receive the slot unavailability indication, are configured to receive a selected demodulation reference signal (DMRS) pattern of a set of potential DMRS patterns in one or more repetitions of a Msg3 message of a four-step random access channel procedure.
23 . A method of wireless communication performed by a user equipment (UE), comprising:
determining, based at least in part on a measurement gap configuration, a set of available slots for an uplink repetition configuration;
transmitting, to a network node, a slot unavailability indication that indicates one or more slots not available for uplink repetitions; wherein the uplink repetition configuration comprises a Msg3 message of a four-step random access channel procedure, wherein transmitting the slot unavailability indication further comprises transmitting a signal that carries the slot unavailability indication, and transmitting the signal further comprises multiplexing the signal with the Msg3 message; and
transmitting, using at least one slot of the set of available slots, at least one uplink repetition associated with the uplink repetition configuration.
24 . The method of claim 23 , wherein a quantity of available slots in the set of available slots corresponds to a physical uplink shared channel aggregation factor associated with the uplink repetition configuration.
25 . A method of wireless communication performed by a network node, comprising:
receiving an indication of a set of available slots for an uplink repetition configuration, wherein the set of available slots is based at least in part on a measurement gap configuration;
receiving, from a user equipment (UE), a slot unavailability indication that indicates one or more slots not available for uplink repetitions; wherein the uplink repetition configuration comprises a Msg3 message of a four-step random access channel procedure, wherein receiving the slot unavailability indication further comprises receiving a signal that carries the slot unavailability indication, and wherein the signal is multiplexed with the Msg3 message; and
receiving, using at least one slot of the set of available slots, at least one uplink repetition associated with the uplink repetition configuration.
26 . The method of claim 25 , wherein a quantity of available slots in the set of available slots corresponds to a physical uplink shared channel aggregation factor associated with the uplink repetition configuration.