Managing blocker signal interference
Certain aspects of the present disclosure provide techniques for managing blocker signal interference. An example method includes transmitting, to a network entity, capability information indicating a capability of the first wireless communications device to reduce an impact of interference associated with one or more blocker signals, receiving, from the network entity based on the capability information, information indicating the one or more blocker signals are scheduled to overlap in time with one or more data signals to be received by the first wireless communications device, receiving the one or more blocker signals and the one or more data signals, and taking one or more actions to reduce the impact of the interference associated with the one or more blocker signals based on the information indicating the one or more blocker signals are scheduled to overlap in time with one or more data signals.
1 . A method for wireless communication by a first wireless communications device, comprising:
transmitting, to a network entity, capability information indicating a capability of the first wireless communications device to reduce an impact of interference associated with one or more blocker signals;
receiving, from the network entity based on the capability information, information indicating the one or more blocker signals are scheduled to overlap in time with one or more data signals to be received by the first wireless communications device;
receiving the one or more blocker signals and the one or more data signals; and
taking one or more actions to reduce the impact of the interference associated with the one or more blocker signals based on the information indicating the one or more blocker signals are scheduled to overlap in time with one or more data signals.
2 . The method of claim 1 , wherein the capability information further indicates a maximum bandwidth in which the first wireless communications device is capable of receiving the one or more blocker signals and reducing the impact of the interference.
3 . The method of claim 2 , wherein the maximum bandwidth is one of:
indicated as centered around a center frequency associated with the one or more data signals to be received by the first wireless communications device; or
indicated as an absolute value above and below a center frequency associated with the one or more data signals to be received by the first wireless communications device.
4 . The method of claim 1 , wherein the capability information further indicates a power threshold relative to a power associated with the one or more data signals to be received by the first wireless communications device and above which the first wireless communications device is configured to take one or more actions to reduce the impact of the interference associated with the one or more blocker signals.
5 . The method of claim 1 , wherein information indicating the one or more blocker signals further comprises at least one of:
a length of time that the one or more blocker signals will be transmitted;
a power of the one or more blocker signals relative to a power of the one or more data signals to be received the first wireless communications device;
a frequency location that the one or more blocker signals will be transmitted; or
an indication that the one or more blocker signals will be transmitted within a particular bandwidth around the one or more data signals to be received by the first wireless communications device.
6 . The method of claim 5 , wherein the length of time that the one or more blocker signals will be transmitted is indicated as a number of slots.
7 . The method of claim 6 , wherein the number of slots are discontinuous.
8 . The method of claim 6 , wherein the number of slots are semi-persistently scheduled or periodically scheduled.
9 . The method of claim 1 , wherein taking the one or more actions to receive the one or more data signals comprises:
increasing a bandwidth associated with a baseband filter of an analog front end (AFE) of the first wireless communications device to include the one or more blocker signals; and
increasing a sampling rate of an analog-to-digital converter of the AFE of the first wireless communications device.
10 . The method of claim 9 , wherein increasing the bandwidth associated with a baseband filter allows the one or more blocker signals to not be filtered out by the AFE from a bandwidth associated with the one or more data signals to be received by the first wireless communications device.
11 . The method of claim 9 , wherein taking the one or more actions to reduce the impact of the interference associated with the one or more blocker signals comprises:
linearizing a non-linear response of the AFE caused the one or more blocker signals; and
reducing the impact of the interference associated with the one or more blocker signals caused to the one or more data signals based on the linearizing non-linear response of the AFE.
12 . The method of claim 11 , further comprising receiving, from the network entity, a request for feedback indicating whether the first wireless communications device was successful in reducing the impact of the interference associated with the one or more blocker signals.
13 . The method of claim 12 , further comprising transmitting the feedback to the network entity, wherein the feedback indicates:
a signal-to-noise (SNR) ratio associated with the one or more data signals after linearizing the non-linear response of the AFE and reducing the impact of the interference associated with the one or more blocker signals; and
an SNR associated with the one or more data signals prior to the linearizing non-linear response of the AFE and reducing the impact of the interference associated with the one or more blocker signals.
14 . A method for wireless communication by a network entity, comprising:
receiving, from one or more wireless communications devices, capability information indicating capabilities of the one or more wireless communications devices to reduce an impact of interference associated with one or more blocker signals; and
transmitting, to at least a first wireless communications device of the one or more wireless communications devices based on the capability information, information indicating the one or more blocker signals are scheduled to overlap in time with one or more data signals to be received by at least the first wireless communications device.
15 . The method of claim 14 , wherein:
the capability information further indicates a maximum bandwidth in which the first wireless communications device is capable of receiving the one or more blocker signals and reducing the impact of the interference; and
a power threshold relative to a power associated with the one or more data signals to be received by the first wireless communications device and above which the first wireless communications device is configured to take one or more actions to reduce the impact of the interference associated with the one or more blocker signals.
16 . The method of claim 15 , wherein the maximum bandwidth is one of:
indicated as centered around a center frequency associated with the one or more data signals to be received by the first wireless communications device; or
indicated as an absolute value above and below a center frequency associated with the one or more data signals to be received by the first wireless communications device.
17 . The method of claim 15 , further comprising determining that the one or more blocker signals will be transmitted within the maximum bandwidth and above the power threshold, wherein transmitting the information indicating the one or more blocker signals are scheduled to overlap in time with one or more data signals is based on the determination.
18 . The method of claim 14 , wherein information indicating the one or more blocker signals further comprises at least one of:
a length of time that the one or more blocker signals will be transmitted;
a power of the one or more blocker signals relative to a power of the one or more data signals to be received the first wireless communications device;
a frequency location that the one or more blocker signals will be transmitted; or
an indication that the one or more blocker signals will be transmitted within a particular bandwidth around the one or more data signals to be received by the first wireless communications device.
19 . The method of claim 18 , wherein the length of time that the one or more blocker signals will be transmitted is indicated as a number of slots.
20 . The method of claim 19 , wherein the number of slots are discontinuous.
21 . The method of claim 19 , wherein the number of slots are semi-persistently scheduled or periodically scheduled.
22 . The method of claim 14 , wherein the information indicating the one or more blocker signals are scheduled to overlap in time with one or more data signals indicates to the first wireless communications device to:
increase a bandwidth associated with a baseband filter of an analog front end (AFE) of the first wireless communications device to include the one or more blocker signals; and
increase a sampling rate of an analog-to-digital converter of the AFE of the first wireless communications device.
23 . The method of claim 22 , wherein increasing the bandwidth associated with a baseband filter allows the one or more blocker signals to not be filtered out by the AFE from a bandwidth associated with the one or more data signals.
24 . The method of claim 22 , wherein the information indicating the one or more blocker signals are scheduled to overlap in time with one or more data signals indicates to the first wireless communications device to:
linearize a non-linear response of the AFE caused by the one or more blocker signals; and
reduce the impact of the interference associated with the one or more blocker signals caused to the one or more data signals based on linearization of the non-linear response of the AFE.
25 . The method of claim 24 , further comprising:
transmitting, to the first wireless communications device, a request for feedback indicating whether the first wireless communications device was successful in reducing the impact of the interference associated with the one or more blocker signals; and
receiving the feedback from the first wireless communications device, wherein the feedback indicates:
a signal-to-noise (SNR) ratio associated with the one or more data signals after linearization of a non-linear response of an analog front end (AFE) of the first wireless communications device and reducing the impact of the interference associated with the one or more blocker signals; and
an SNR associated with the one or more data signals prior to the linearization of the non-linear response of the AFE of the first wireless communications device and reducing the impact of the interference associated with the one or more blocker signals.
26 . The method of claim 14 , further comprising:
scheduling the one or more data signals for the first wireless communications device based on the capability information, wherein scheduling the one or more data signals for the first wireless communications device is based further on at least one of:
a modulation and coding scheme assigned for transmission of the one or more data signals;
cross link interference reported from the first wireless communications devices; or
an signal-to-noise ratio (SNR) reported from first wireless communications device.
27 . The method of claim 26 , wherein:
when, based on the capability information, the first wireless communications device is capable of reducing the impact of interference associated with one or more blocker signals, scheduling the one or more data signals for the first wireless communications device comprises scheduling the one or more data signals on frequency resources adjacent frequency resources used for transmission of the one or more blocker signals in frequency; and
when, based on the capability information, the first wireless communications device is not capable of reducing the impact of interference associated with one or more blocker signals, scheduling the one or more data signals for the first wireless communications device comprises scheduling the one or more data signals on frequency resources to be non-adjacent to the frequency resources used for transmission of the one or more blocker signals in frequency.
28 . The method of claim 14 , further comprising receiving the information indicating the one or more blocker signals from another network entity associated with a different cell relative to the network entity.
29 . An apparatus for wireless communication, comprising:
one or more memories; and
one or more processors configured to cause the apparatus to:
transmit, to a network entity, capability information indicating a capability of the first wireless communications device to reduce an impact of interference associated with one or more blocker signals;
receive, from the network entity based on the capability information, information indicating the one or more blocker signals are scheduled to overlap in time with one or more data signals to be received by the first wireless communications device;
receive the one or more blocker signals and the one or more data signals; and
take one or more actions to reduce the impact of the interference associated with the one or more blocker signals based on the information indicating the one or more blocker signals are scheduled to overlap in time with one or more data signals.
30 . An apparatus for wireless communication, comprising:
one or more memories; and
one or more processors configured to cause the apparatus to:
receive, from one or more wireless communications devices, capability information indicating capabilities of the one or more wireless communications devices to reduce an impact of interference associated with one or more blocker signals; and
transmit, to at least a first wireless communications device of the one or more wireless communications devices based on the capability information, information indicating the one or more blocker signals are scheduled to overlap in time with one or more data signals to be received by at least the first wireless communications device.