Handling an uplink resource muting pattern that overlaps with a phase tracking reference signal in a subband full duplex operation
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration associated with an uplink phase tracking reference signal (PTRS). The UE may receive an indication of an uplink resource muting pattern, wherein the uplink resource muting pattern overlaps with a physical uplink shared channel (PUSCH) carrying the uplink PTRS in a subband full duplex operation. The UE may perform a handling of the uplink resource muting pattern that overlaps with the PUSCH carrying the uplink PTRS. Numerous other aspects are described.
1 . An apparatus for wireless communication at a user equipment (UE), comprising:
memory; and
one or more processors, coupled to the memory, configured to cause the UE to:
receive a configuration associated with an uplink phase tracking reference signal (PTRS);
receive an indication of an uplink resource muting pattern, wherein the uplink resource muting pattern overlaps with a physical uplink shared channel (PUSCH) carrying the uplink PTRS in a subband full duplex slot; and
perform a handling of the uplink resource muting pattern that overlaps with the PUSCH carrying the uplink PTRS.
2 . The apparatus of claim 1 , wherein the one or more processors are further configured to cause the UE to:
transmit the uplink PTRS via the PUSCH based at least in part on the uplink PTRS being prioritized over the uplink resource muting pattern in accordance with the handling.
3 . The apparatus of claim 1 , wherein the one or more processors are further configured to cause the UE to:
mute an uplink resource using the uplink resource muting pattern based at least in part on the uplink resource muting pattern being prioritized over the uplink PTRS in accordance with the handling.
4 . The apparatus of claim 1 , wherein the PUSCH that carries the uplink PTRS is associated with cyclic prefix orthogonal frequency division multiplexing (CP-OFDM).
5 . The apparatus of claim 1 , wherein the one or more processors, to perform the handling, are further configured to cause the UE to:
prohibit the uplink resource muting pattern from overlapping with the uplink PTRS on a same symbol.
6 . The apparatus of claim 1 , wherein the one or more processors, to perform the handling, are further configured to cause the UE to:
allow the uplink resource muting pattern to overlap with the uplink PTRS on a same symbol; and
limit the uplink resource muting pattern and the uplink PTRS to different resource elements.
7 . The apparatus of claim 1 , wherein the one or more processors, to perform the handling, are further configured to cause the UE to:
prioritize the uplink resource muting pattern over the uplink PTRS, wherein a PTRS symbol is skipped based at least in part on the PTRS symbol overlapping with a muting resource element.
8 . The apparatus of claim 1 , wherein the one or more processors, to perform the handling, are further configured to cause the UE to:
prioritize the uplink PTRS over the uplink resource muting pattern based at least in part on the uplink resource muting pattern colliding with the uplink PTRS on one or more resource elements (REs), wherein uplink muting is skipped for the one or more REs.
9 . The apparatus of claim 1 , wherein the PUSCH that carries the uplink PTRS is associated with discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM).
10 . The apparatus of claim 1 , wherein the one or more processors, to perform the handling, are further configured to cause the UE to:
prohibit uplink resource muting on the PUSCH.
11 . The apparatus of claim 1 , wherein the one or more processors, to perform the handling, are further configured to cause the UE to:
drop the uplink PTRS based at least in part on the uplink resource muting pattern overlapping with the PUSCH.
12 . The apparatus of claim 1 , wherein the one or more processors, to perform the handling, are further configured to cause the UE to:
prioritize the uplink PTRS based at least in part on the uplink resource muting pattern overlapping with the PUSCH, wherein no uplink muting is performed on overlapped resources.
13 . The apparatus of claim 1 , wherein the uplink resource muting pattern and the uplink PTRS are allowed on a same symbol and are configured on different resource elements (REs), and the one or more processors are further configured to cause the UE to:
boost powers of remaining uplink shared channel REs to compensate for muted REs.
14 . The apparatus of claim 1 , wherein the uplink resource muting pattern and the uplink PTRS are allowed on a same symbol and are configured on different resource elements (REs), and the one or more processors are further configured to cause the UE to:
boost a power of the uplink PTRS to compensate for muted REs, wherein the power of the uplink PTRS is boosted based at least in part on an implicit power boosting in addition to a legacy PTRS power boost factor, or the power of the uplink PTRS is boosted using a separate power boost factor to be used when the uplink PTRS overlaps with the uplink resource muting pattern.
15 . An apparatus for wireless communication at a network node, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to cause the network node to:
transmit a configuration associated with an uplink phase tracking reference signal (PTRS);
transmit an indication of an uplink resource muting pattern, wherein the uplink resource muting pattern overlaps with a physical uplink shared channel (PUSCH) carrying the uplink PTRS in a subband full duplex slot; and
receive the uplink PTRS based at least in part on a handling of the uplink resource muting pattern that overlaps with the PUSCH carrying the uplink PTRS.
16 . The apparatus of claim 15 , wherein the one or more processors, to perform the handling, are further configured to cause the network node to:
receive the uplink PTRS via the PUSCH based at least in part on the uplink PTRS being prioritized over the uplink resource muting pattern in accordance with the handling.
17 . The apparatus of claim 15 , wherein:
the PUSCH that carries the uplink PTRS is associated with cyclic prefix orthogonal frequency division multiplexing (CP-OFDM); or
the PUSCH that carries the uplink PTRS is associated with discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM).
18 . The apparatus of claim 15 , wherein:
the uplink resource muting pattern is prohibited from overlapping with the uplink PTRS on a same symbol in accordance with the handling; or
the uplink resource muting pattern is allowed to overlap with the uplink PTRS on a same symbol, and the uplink resource muting pattern and the uplink PTRS are limited to different resource elements, in accordance with the handling.
19 . The apparatus of claim 15 , wherein the uplink PTRS is prioritized over the uplink resource muting pattern based at least in part on the uplink resource muting pattern colliding with the uplink PTRS on one or more resource elements (REs), and uplink muting is skipped for the one or more REs, in accordance with the handling.
20 . The apparatus of claim 15 , wherein:
uplink resource muting is prohibited on the PUSCH in accordance with the handling; or
the uplink PTRS is prioritized based at least in part on the uplink resource muting pattern overlapping with the PUSCH, and no uplink muting is performed on overlapped resources, in accordance with the handling.
21 . A method of wireless communication performed by a user equipment (UE), comprising:
receiving a configuration associated with an uplink phase tracking reference signal (PTRS);
receiving an indication of an uplink resource muting pattern, wherein the uplink resource muting pattern overlaps with a physical uplink shared channel (PUSCH) carrying the uplink PTRS in a subband full duplex slot; and
performing a handling of the uplink resource muting pattern that overlaps with the PUSCH carrying the uplink PTRS.
22 . The method of claim 21 , further comprising:
transmitting the uplink PTRS via the PUSCH based at least in part on the uplink PTRS being prioritized over the uplink resource muting pattern in accordance with the handling; or
muting an uplink resource using the uplink resource muting pattern based at least in part on the uplink resource muting pattern being prioritized over the uplink PTRS in accordance with the handling.
23 . The method of claim 21 , wherein:
the PUSCH that carries the uplink PTRS is associated with cyclic prefix orthogonal frequency division multiplexing (CP-OFDM); or
the PUSCH that carries the uplink PTRS is associated with discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM).
24 . The method of claim 21 , wherein performing the handling further comprises:
prohibiting the uplink resource muting pattern from overlapping with the uplink PTRS on a same symbol.
25 . The method of claim 21 , wherein performing the handling further comprises:
allowing the uplink resource muting pattern to overlap with the uplink PTRS on a same symbol; and
limiting the uplink resource muting pattern and the uplink PTRS to different resource elements.
26 . The method of claim 21 , wherein performing the handling further comprises:
prioritizing the uplink resource muting pattern over the uplink PTRS, wherein a PTRS symbol is skipped based at least in part on the PTRS symbol overlapping with a muting resource element; or
prioritizing the uplink PTRS over the uplink resource muting pattern based at least in part on the uplink resource muting pattern colliding with the uplink PTRS on one or more resource elements (REs), wherein uplink muting is skipped for the one or more REs.
27 . The method of claim 21 , wherein performing the handling further comprises:
prohibiting uplink resource muting on the PUSCH;
dropping the uplink PTRS based at least in part on the uplink resource muting pattern overlapping with the PUSCH; or
prioritizing the uplink PTRS based at least in part on the uplink resource muting pattern overlapping with the PUSCH, wherein no uplink muting is performed on overlapped resources.
28 . The method of claim 21 , wherein the uplink resource muting pattern and the uplink PTRS are allowed on a same symbol and are configured on different resource elements (REs), and further comprising:
boosting powers of remaining uplink shared channel REs to compensate for muted REs; or
boosting a power of the uplink PTRS to compensate for muted REs, wherein the power of the uplink PTRS is boosted based at least in part on an implicit power boosting in addition to a legacy PTRS power boost factor, or the power of the uplink PTRS is boosted using a separate power boost factor to be used when the uplink PTRS overlaps with the uplink resource muting pattern.
29 . A method of wireless communication performed by a network node, comprising:
transmitting a configuration associated with an uplink phase tracking reference signal (PTRS);
transmitting an indication of an uplink resource muting pattern, wherein the uplink resource muting pattern overlaps with a physical uplink shared channel (PUSCH) carrying the uplink PTRS in a subband full duplex slot; and
receiving the uplink PTRS based at least in part on a handling of the uplink resource muting pattern that overlaps with the PUSCH carrying the uplink PTRS.
30 . The method of claim 29 , further comprising:
receiving the uplink PTRS via the PUSCH based at least in part on the uplink PTRS being prioritized over the uplink resource muting pattern in accordance with the handling.