Techniques for generating an average effective isotropic radiated power (EIRP) mask to support interference mitigation
Methods, systems, and devices for wireless communications are described. Generally, the techniques described herein may support generating an average effective isotropic radiated power (EIRP) mask in accordance with a set of weighted values to support interference management. For example, a wireless device may obtain one or more information bits for transmission by the wireless device via a transmit beam of multiple transmit beams of the wireless device and may generate, based on one or more directional parameters associated with a beamforming direction of the transmit beam, a set of weighted values for an average EIRP mask for the transmission of the one or more information bits. Additionally, the wireless device may transmit, via the transmit beam in the beamforming direction based on the one or more directional parameters and the set of weighted values, a signal comprising the one or more information bits to meet the average EIRP mask.
1 . An apparatus for wireless communications at a wireless device, comprising:
at least one processor;
at least one memory coupled with the at least one processor; and
instructions stored in the at least one memory and executable by the at least one processor to cause the apparatus to:
obtain one or more information bits for transmission by the wireless device via a transmit beam of a plurality of transmit beams of the wireless device;
generate, based at least in part on one or more directional parameters associated with a beamforming direction of the transmit beam, a set of weighted values for the transmission of the one or more information bits to satisfy an average effective isotropic radiated power (EIRP) mask, the average EIRP mask generated by averaging a set of EIRP values corresponding to a plurality of directions over a time duration, the plurality of directions in accordance with the one or more directional parameters; and
transmit, via the transmit beam in the beamforming direction based at least in part on the one or more directional parameters and the set of weighted values, a signal comprising the one or more information bits to meet the average EIRP mask.
2 . The apparatus of claim 1 , wherein the one or more directional parameters comprises an azimuth angle, an elevation angle, or both, and wherein, to meet the average EIRP mask, the instructions are further executable by the at least one processor to cause the apparatus to:
transmit, based at least in part on the set of weighted values, one or more additional signals over a range of azimuth angles, a range of elevation angles or both, wherein the plurality of directions comprise the range of azimuth angles, the range of elevation angles, or both; and
average the set of EIRP values associated with each azimuth angle of the range of azimuth angles, each elevation angle of the range of elevation angles, or both, over the time duration, wherein meeting the average EIRP mask is based at least in part on the averaged set of EIRP values being less than the average EIRP mask.
3 . The apparatus of claim 2 , wherein the time duration over which the set of EIRP values is averaged is based at least in part on a configuration of the wireless device or based at least in part on a regulatory requirement.
4 . The apparatus of claim 1 , wherein the one or more directional parameters comprises an azimuth angle, and wherein the instructions to generate the set of weighted values are executable by the at least one processor to cause the apparatus to:
generate a first weighted value of the set of weighted values based at least in part on a ratio of an elemental gain associated with an antenna at a first azimuth angle from a range of azimuth angles to a maximum elemental gain associated with the antenna over the range of azimuth angles, wherein the plurality of directions comprise the range of azimuth angles.
5 . The apparatus of claim 4 , wherein the ratio is averaged over the time duration, and wherein the time duration is based at least in part on a configuration of the wireless device.
6 . The apparatus of claim 1 , wherein the one or more directional parameters comprises an elevation angle, and wherein the instructions to generate the set of weighted values are executable by the at least one processor to cause the apparatus to:
generate a first weighted value of the set of weighted values based at least in part on a ratio of a reference signal received power (RSRP) associated with steering the transmit beam towards a first elevation angle from a range of elevation angles to a maximum RSRP associated with steering the transmit beam over the range of elevation angles, wherein the plurality of directions comprise the range of elevation angles.
7 . The apparatus of claim 6 , wherein the ratio is averaged over the time duration, and wherein the time duration is based at least in part on a configuration of the wireless device.
8 . The apparatus of claim 1 , wherein the one or more directional parameters comprises an azimuth angle and an elevation angle, and wherein the instructions to generate the set of weighted values are executable by the at least one processor to cause the apparatus to:
generate a first weighted value of the set of weighted values associated with a first azimuth angle and a first elevation angle; and
generate a second weighted value of the set of weighted values associated with a second azimuth angle and a second elevation angle based at least in part on a first difference between the first azimuth angle and the second azimuth angle, between the first elevation angle and the second elevation angle, or both, wherein a second difference between the first weighted value and the second weighted value is based at least in part on the first difference, wherein the plurality of directions comprise first azimuth angle, the second azimuth angle, the first elevation angle, and the second elevation angle.
9 . The apparatus of claim 8 , wherein the first difference is averaged over the time duration, and wherein the time duration is based at least in part on a configuration of the wireless device.
10 . The apparatus of claim 1 , wherein the instructions are further executable by the at least one processor to cause the apparatus to:
generate the average EIRP mask based at least in part on averaging a transmitted power over a range of values of the one or more directional parameters using the set of weighted values, wherein the range of values is based at least in part on a frequency associated with transmission of the signal, and wherein the plurality of directions comprise the range of values.
11 . The apparatus of claim 10 , wherein the range of values of the one or more directional parameters comprises a range of azimuth angles, a range of elevation angles, or both.
12 . The apparatus of claim 10 , wherein the range of values of the one or more directional parameters is a fixed range independent of the beamforming direction of the transmit beam.
13 . The apparatus of claim 10 , wherein the range of values of the one or more directional parameters is based at least in part on the beamforming direction of the transmit beam.
14 . The apparatus of claim 1 , wherein the one or more directional parameters comprises an elevation angle, and wherein the instructions to generate the set of weighted values are executable by the at least one processor to cause the apparatus to:
generate a first weighted value of the set of weighted values based at least in part on a ratio of a reference signal received power (RSRP) associated with steering the plurality of transmit beams generated with an antenna array towards a first elevation angle from a range of elevation angles to a maximum RSRP associated with steering the plurality of transmit beams over the range of elevation angles, wherein the plurality of directions comprise the range of elevation angles.
15 . The apparatus of claim 14 , wherein the ratio is averaged over the time duration, and wherein the time duration is based at least in part on a configuration of the wireless device.
16 . The apparatus of claim 1 , wherein the instructions are further executable by the at least one processor to cause the apparatus to:
transmit an indication of a capability of the wireless device to generate the set of weighted values for the average EIRP mask based at least in part on the one or more directional parameters associated with the beamforming direction of the transmit beam.
17 . The apparatus of claim 1 , wherein the instructions are further executable by the at least one processor to cause the apparatus to:
receive an indication of the time duration associated with generating the set of weighted values for the average EIRP mask; and
initiate a timer associated with the time duration based at least in part on receiving the indication, wherein the one or more information bits are transmitted prior to expiration of the timer.
18 . The apparatus of claim 1 , wherein the average EIRP mask is associated with a plurality of frequency ranges, a plurality of frequencies within a frequency range, or both.
19 . The apparatus of claim 1 , wherein the one or more directional parameters comprises an azimuth angle, an elevation angle, or both.
20 . A method for wireless communications at a wireless device, comprising:
obtaining one or more information bits for transmission by the wireless device via a transmit beam of a plurality of transmit beams of the wireless device;
generating, based at least in part on one or more directional parameters associated with a beamforming direction of the transmit beam, a set of weighted values for the transmission of the one or more information bits to satisfy an average effective isotropic radiated power (EIRP) mask, the average EIRP mask generated by averaging a set of EIRP values corresponding to a plurality of directions over a time duration, the plurality of directions in accordance with the one or more directional parameters; and
transmitting, via the transmit beam in the beamforming direction based at least in part on the one or more directional parameters and the set of weighted values, a beamformed signal comprising the one or more information bits to meet the average EIRP mask.
21 . The method of claim 20 , wherein the one or more directional parameters comprises an azimuth angle, an elevation angle, or both, and wherein meeting the average EIRP mask comprises:
transmitting, based at least in part on the set of weighted values, one or more additional signals over a range of azimuth angles, a range of elevation angles or both; and
averaging the set of EIRP values associated with each azimuth angle of the range of azimuth angles, each elevation angle of the range of elevation angles, or both, over the time duration, wherein meeting the average EIRP mask is based at least in part on the averaged set of EIRP values being less than the average EIRP mask, wherein the plurality of directions comprise the range of azimuth angles, the range of elevation angles, or both.
22 . The method of claim 20 , wherein the one or more directional parameters comprises an azimuth angle, and wherein generating the set of weighted values comprises:
generating a first weighted value of the set of weighted values based at least in part on a ratio of an elemental gain associated with an antenna at a first azimuth angle from a range of azimuth angles to a maximum elemental gain associated with the antenna over the range of azimuth angles, wherein the plurality of directions comprise the range of azimuth angles.
23 . The method of claim 20 , wherein the one or more directional parameters comprises an elevation angle, and wherein generating the set of weighted values comprises:
generating a first weighted value of the set of weighted values based at least in part on a ratio of a reference signal received power (RSRP) associated with steering the transmit beam towards a first elevation angle from a range of elevation angles to a maximum RSRP associated with steering the transmit beam over the range of elevation angles, wherein the plurality of directions comprise the range of elevation angles.
24 . The method of claim 20 , wherein the one or more directional parameters comprises an azimuth angle and an elevation angle, and wherein generating the set of weighted values comprises:
generating a first weighted value of the set of weighted values associated with a first azimuth angle and a first elevation angle; and
generating a second weighted value of the set of weighted values associated with a second azimuth angle and a second elevation angle based at least in part on a first difference between the first azimuth angle and the second azimuth angle, between the first elevation angle and the second elevation angle, or both, wherein a second difference between the first weighted value and the second weighted value is based at least in part on the first difference, wherein the plurality of directions comprise first azimuth angle, the second azimuth angle, the first elevation angle, and the second elevation angle.
25 . The method of claim 20 , further comprising:
generating the average EIRP mask based at least in part on averaging a transmitted power over a range of values of the one or more directional parameters using the set of weighted values, wherein the range of values is based at least in part on a frequency associated with transmission of the beamformed signal, and wherein the plurality of directions comprise the range of values.
26 . The method of claim 20 , wherein the one or more directional parameters comprises an elevation angle, and wherein generating the set of weighted values comprises:
generating a first weighted value of the set of weighted values based at least in part on a ratio of a reference signal received power (RSRP) associated with steering the plurality of transmit beams generated with an antenna array towards a first elevation angle from a range of elevation angles to a maximum RSRP associated with steering the plurality of transmit beams over the range of elevation angles, wherein the plurality of directions comprise the range of elevation angles.
27 . The method of claim 20 , further comprising:
transmitting an indication of a capability of the wireless device to generate the set of weighted values for the average EIRP mask based at least in part on the one or more directional parameters associated with the beamforming direction of the transmit beam.
28 . The method of claim 20 , further comprising:
receiving an indication of the time duration associated with generating the set of weighted values for the average EIRP mask; and
initiating a timer associated with the time duration based at least in part on receiving the indication, wherein the one or more information bits are transmitted prior to expiration of the timer.
29 . An apparatus for wireless communications at a wireless device, comprising:
means for obtaining one or more information bits for transmission by the wireless device via a transmit beam of a plurality of transmit beams of the wireless device;
means for generating, based at least in part on one or more directional parameters associated with a beamforming direction of the transmit beam, a set of weighted values for the transmission of the one or more information bits to satisfy an average effective isotropic radiated power (EIRP) mask, the average EIRP mask generated by averaging a set of EIRP values corresponding to a plurality of directions over a time duration, the plurality of directions in accordance with the one or more directional parameters; and
means for transmitting, via the transmit beam in the beamforming direction based at least in part on the one or more directional parameters and the set of weighted values, a signal comprising the one or more information bits to meet the average EIRP mask.
30 . A non-transitory computer-readable medium storing code for wireless communications at a wireless device, the code comprising instructions executable by a processor to:
obtain one or more information bits for transmission by the wireless device via a transmit beam of a plurality of transmit beams of the wireless device;
generate, based at least in part on one or more directional parameters associated with a beamforming direction of the transmit beam, a set of weighted values for the transmission of the one or more information bits to satisfy an average effective isotropic radiated power EIRP) mask, the average EIRP mask generated by averaging a set of EIRP values corresponding to a plurality of directions over a time duration, the plurality of directions in accordance with the one or more directional parameters; and
transmit, via the transmit beam in the beamforming direction based at least in part on the one or more directional parameters and the set of weighted values, a signal comprising the one or more information bits to meet the average EIRP mask.