Cross link interference reference signal configuration
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may receive a first downlink determining, based at least in part on an uplink transmission schedule for a user equipment (UE), one or more communications that are to be transmitted as a cross link interference reference signal (CLI-RS) during a time window. The BS may transmit, to the UE, an instruction to transmit the one or more communications as the CLI-RS during the time window. Numerous other aspects are provided.
1. A method of wireless communication performed by a base station (BS), comprising:
determining that a remote interference reference signal (RI-RS) is to be transmitted;
transmitting, to a user equipment (UE), an instruction to refrain from transmitting a cross link interference reference signal (CLI-RS) during a time window that comprises one or more slots and is determined based at least in part on a slot in which the RI-RS is to be transmitted and a propagation delay associated with the RI-RS;
determining, based at least in part on an uplink transmission schedule for the UE, one or more communications that are to be transmitted as the CLI-RS during another time window; and
transmitting, to the UE, another instruction to transmit the one or more communications as the CLI-RS during the other time window.
2. The method of claim 1 , wherein the other time window is included in an active uplink bandwidth part (BWP) of a wireless communication link between the BS and the UE.
3. The method of claim 1 , wherein the other time window is included in an initial uplink bandwidth part (BWP) of a wireless communication link between the BS and the UE.
4. The method of claim 1 , wherein the other time window includes at least a portion of at least one symbol, after a transmission of the one or more communications as the CLI-RS, that are to buffer the transmission of the one or more communications.
5. The method of claim 1 , wherein the other instruction to transmit the one or more communications as the CLI-RS comprises:
an instruction to transmit the one or more communications as the CLI-RS without a timing advance (TA).
6. The method of claim 1 , wherein the one or more communications comprise at least one of:
a data communication,
a demodulation reference signal (DMRS),
a sounding reference signal (SRS),
a channel state information reference signal (CSI-RS), or
a repetitive data communication.
7. The method of claim 1 , wherein transmitting the instruction to refrain from transmitting the CLI-RS during the time window comprises:
transmitting, based at least in part on receiving an instruction to transmit the RI-RS, the instruction to refrain from transmitting the CLI-RS during the time window.
8. The method of claim 1 , wherein transmitting the instruction to refrain from transmitting the CLI-RS during the time window comprises:
transmitting, based at least in part on receiving an indication that cross link interference has been detected, the instruction to refrain from transmitting the CLI-RS during the time window.
9. The method of claim 1 , wherein a quantity of the one or more slots included in the time window is based at least in part on a network configuration for a wireless network in which the BS is included.
10. The method of claim 1 , wherein the time window occupies all of a frequency range, during the one or more slots, of a wireless communication link between the BS and the UE.
11. The method of claim 1 , wherein the time window occupies a subset of frequency subcarriers, during the one or more slots, of a wireless communication link between the BS and the UE.
12. A base station (BS) for wireless communication, comprising:
one or more memories; and
one or more processors, coupled to the one or more memories, configured to cause the BS to:
determine that a remote interference reference signal (RI-RS) is to be transmitted;
transmit, to a user equipment (UE), an instruction to refrain from transmitting a cross link interference reference signal (CLI-RS) during a time window that comprises one or more slots and is determined based at least in part on a slot in which the RI-RS is to be transmitted and a propagation delay associated with the RI-RS;
determine, based at least in part on an uplink transmission schedule for the UE, one or more communications that are to be transmitted as the CLI-RS during another time window; and
transmit, to the UE, another instruction to transmit the one or more communications as the CLI-RS during the other time window.
13. The BS of claim 12 , wherein the other time window is included in an active uplink bandwidth part (BWP) of a wireless communication link between the BS and the UE.
14. The BS of claim 12 , wherein the other time window is included in an initial uplink bandwidth part (BWP) of a wireless communication link between the BS and the UE.
15. The BS of claim 12 , wherein the other time window includes at least a portion of at least one symbol, after a transmission of the one or more communications as the CLI-RS, that are to buffer the transmission of the one or more communications.
16. The BS of claim 12 , wherein the other instruction to transmit the one or more communications as the CLI-RS comprises:
an instruction to transmit the one or more communications as the CLI-RS without a timing advance (TA).
17. The BS of claim 12 , wherein the one or more communications comprise at least one of:
a data communication,
a demodulation reference signal (DMRS),
a sounding reference signal (SRS),
a channel state information reference signal (CSI-RS), or
a repetitive data communication.
18. The BS of claim 12 , wherein the one or more processors, to cause the BS to transmit the instruction to refrain from transmitting the CLI-RS during the time window, are configured to cause the BS to:
transmit, based at least in part on receiving an instruction to transmit the RI-RS, the instruction to refrain from transmitting the CLI-RS during the time window.
19. The BS of claim 12 , wherein the one or more processors, to cause the BS to transmit the instruction to refrain from transmitting the CLI-RS during the time window, are configured to cause the BS to:
transmit, based at least in part on receiving an indication that cross link interference has been detected, the instruction to refrain from transmitting the CLI-RS during the time window.
20. The BS of claim 12 , wherein a quantity of the one or more slots included in the time window is based at least in part on a network configuration for a wireless network in which the BS is included.
21. The BS of claim 12 , wherein the time window occupies all of a frequency range, during the one or more slots, of a wireless communication link between the BS and the UE.
22. The BS of claim 12 , wherein the time window occupies a subset of frequency sub carriers, during the one or more slots, of a wireless communication link between the BS and the UE.
23. 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 base station (BS), cause the BS to:
determine that a remote interference reference signal (RI-RS) is to be transmitted;
transmit, to a user equipment (UE), an instruction to refrain from transmitting a cross link interference reference signal (CLI-RS) during a time window that comprises one or more slots and is determined based at least in part on a slot in which the RI-RS is to be transmitted and a propagation delay associated with the RI-RS;
determine, based at least in part on an uplink transmission schedule for the UE, one or more communications that are to be transmitted as the CLI-RS during another time window; and
transmit, to the UE, another instruction to transmit the one or more communications as the CLI-RS during the other time window.
24. The non-transitory computer-readable medium of claim 23 , wherein the other time window is included in an active uplink bandwidth part (BWP) of a wireless communication link between the BS and the UE.
25. The non-transitory computer-readable medium of claim 23 , wherein the other time window is included in an initial uplink bandwidth part (BWP) of a wireless communication link between the BS and the UE.
26. The non-transitory computer-readable medium of claim 23 , wherein the other time window includes at least a portion of at least one symbol, after a transmission of the one or more communications as the CLI-RS, that are to buffer the transmission of the one or more communications.
27. The non-transitory computer-readable medium of claim 23 , wherein the other instruction to transmit the one or more communications as the CLI-RS comprises:
an instruction to transmit the one or more communications as the CLI-RS without a timing advance (TA).
28. The non-transitory computer-readable medium of claim 23 , wherein the one or more communications comprise at least one of:
a data communication,
a demodulation reference signal (DMRS),
a sounding reference signal (SRS),
a channel state information reference signal (CSI-RS), or
a repetitive data communication.
29. The non-transitory computer-readable medium of claim 23 , wherein the one or more instructions, that cause the BS to transmit the instruction to refrain from transmitting the CLI-RS during the time window, cause the BS to:
transmit, based at least in part on receiving an instruction to transmit the RI-RS, the instruction to refrain from transmitting the CLI-RS during the time window.
30. An apparatus for wireless communication, comprising:
means for determining that a remote interference reference signal (RI-RS) is to be transmitted;
means for transmitting, to a user equipment (UE), an instruction to refrain from transmitting a cross link interference reference signal (CLI-RS) during a time window that comprises one or more slots and is determined based at least in part on a slot in which the RI-RS is to be transmitted and a propagation delay associated with the RI-RS;
means for determining, based at least in part on an uplink transmission schedule for the UE, one or more communications that are to be transmitted as the CLI-RS during another time window; and
means for transmitting, to the UE, another instruction to transmit the one or more communications as the CLI-RS during the other time window.