Pilots for interference measurement
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, for transmission of an uplink communication, an indication of a first allocation of first resources on a first bandwidth and, for transmission of pilots for interference measurement associated with the uplink communication, an indication of a second allocation of second resources on a second bandwidth. The UE may transmit the uplink communication on the first resources on the first bandwidth and the pilots on the second resources on the second bandwidth, the second bandwidth being different from the first bandwidth. Numerous other aspects are described.
1 . An apparatus for wireless communication at a first user equipment (UE), comprising:
one or more memories storing processor-executable code; and
one or more processors coupled to the one or more memories, at least one processor of the one or more processors configured to cause the apparatus to:
transmit an indication of a state in which a cross-link interference satisfies a threshold; and
receive, from a second UE, pilots for interference measurement on a set of resources that overlap a first bandwidth allocated for reception of a downlink communication, wherein a second bandwidth of the pilots is greater than a third bandwidth of an uplink communication.
2 . The apparatus of claim 1 , wherein the at least one processor is further configured to cause the apparatus to:
receive the downlink communication in accordance with the pilots.
3 . The apparatus of claim 1 , wherein the at least one processor is configured to cause the apparatus to:
estimate, according to the pilots, interference associated with the uplink communication transmitted by the second UE; and
correct signals associated with the downlink communication in accordance with the interference associated with the uplink communication.
4 . The apparatus of claim 1 , wherein the at least one processor is further configured to cause the apparatus to:
transmit an indication of a measurement of one or more portions of a wideband channel;
transmit an indication of a requested bandwidth for the second UE to use for the uplink communication in accordance with the measurement of the wideband channel; or
transmit an indication of a requested bandwidth for the second UE not to use for the uplink communication in accordance with the measurement of the wideband channel.
5 . The apparatus of claim 1 , wherein the at least one processor is further configured to cause the apparatus to:
transmit indications of one or more of:
a requested width of an allocation for the pilots,
a requested periodicity of the allocation for the pilots, or
a requested transmission power associated with the pilots.
6 . The apparatus of claim 1 , wherein the at least one processor is further configured to cause the apparatus to:
identify a cause of the cross-link interference according to parameters corresponding to the state.
7 . The apparatus of claim 1 , wherein the at least one processor is further configured to cause the apparatus to:
transmit an indication of a requested bandwidth to use for the downlink communication in accordance with a measurement of a wideband channel; or
transmit an indication of a requested bandwidth not to use for the downlink communication in accordance with the measurement of the wideband channel.
8 . A method for wireless communication performed at a first user equipment (UE), comprising:
transmitting an indication of a state in which a cross-link interference satisfies a threshold; and
receiving, from a second UE, pilots for interference measurement on a set of resources that overlap a first bandwidth allocated for reception of a downlink communication, wherein a second bandwidth of the pilots is greater than a third bandwidth of an uplink communication.
9 . The method of claim 8 , further comprising receiving the downlink communication in accordance with the pilots.
10 . The method of claim 8 , further comprising:
estimating, according to the pilots, interference associated with the uplink communication transmitted by the second UE; and
correcting signals associated with the downlink communication in accordance with the interference associated with the uplink communication.
11 . The method of claim 8 , further comprising:
transmitting an indication of a measurement of one or more portions of a wideband channel;
transmitting an indication of a requested bandwidth for the second UE to use for the uplink communication in accordance with the measurement of the wideband channel; or
transmitting an indication of a requested bandwidth for the second UE not to use for the uplink communication in accordance with the measurement of the wideband channel.
12 . The method of claim 8 , further comprising:
transmitting indications of one or more of:
a requested width of an allocation for the pilots,
a requested periodicity of the allocation for the pilots, or
a requested transmission power associated with the pilots.
13 . The method of claim 8 , further comprising identifying a cause of the cross-link interference according to parameters corresponding to the state.
14 . The method of claim 8 , further comprising:
transmitting an indication of a requested bandwidth to use for the downlink communication in accordance with a measurement of a wideband channel; or
transmitting an indication of a requested bandwidth not to use for the downlink communication in accordance with the measurement of the wideband channel.
15 . 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 at a first user equipment (UE), cause the first UE to:
transmit an indication of a state in which a cross-link interference satisfies a threshold; and
receive, from a second UE, pilots for interference measurement on a set of resources that overlap a first bandwidth allocated for reception of a downlink communication, wherein a second bandwidth of the pilots is greater than a third bandwidth of an uplink communication.