Machine learning aided location-based downlink interference assistance information

1. A method of wireless communications by a user equipment (UE), comprising:

receiving location-based downlink interference assistance information according to a current geolocation of the UE, the location-based downlink interference assistance information comprising a spatial interference pattern indicating an incoming direction of dominant interference; and

estimating downlink interference according to the location-based downlink interference assistance information.

2. The method of claim 1 , in which the location-based downlink interference assistance information further comprises a strength of the dominant interference at the current geolocation of the UE.

3. The method of claim 1 , further comprising projecting the incoming direction of the dominant interference on to a local coordinate system of the LIE based on an orientation of the UE and an arrangement of antennas of the UE.

4. The method of claim 1 , in which the incoming direction of the dominant interference is associated with time resources and/or frequency resources indicated by the interference assistance information.

5. The method of claim 1 , in which the incoming direction of the dominant interference comprises a plurality of directions.

6. The method of claim 1 , in which the incoming direction of the dominant interference is relative to a globally fixed coordinate system based on a direction of arrival of a desired signal from a serving cell.

7. The method of claim 1 , further comprising estimating a downlink interference covariance matrix across antennas of the UE based on the location-based downlink interference assistance information.

8. The method of claim 1 , further comprising suppressing interference across antennas of the UE based on the location-based downlink interference assistance information.

9. The method of claim 1 , further comprising demodulating data based on the location-based downlink interference assistance information.

10. The method of claim 1 , further comprising transmitting channel state information (CSI) feedback based on the location-based downlink interference assistance information.

11. The method of claim 1 , further comprising selecting an array of antennas based on the location-based downlink interference assistance information.

12. A method of wireless communications by a network device, comprising:

learning downlink interference information for a plurality of geolocations;

detecting at least one user equipment (UE) at one of the plurality of geolocations; and

transmitting, to the UE, location-based downlink interference assistance information according to a current geolocation of the UE, the location-based downlink interference assistance information comprising a spatial interference pattern indicating an incoming direction of dominant interference.

13. The method of claim 12 , in which learning the downlink interference information further comprises learning a strength of dominant interference for each of the plurality of geolocations based on historical channel state information (CSI).

14. The method of claim 12 , in which the learning further comprises communicating with another network device at another cell to determine the incoming direction of the dominant interference.

15. The method of claim 12 , in which the network device comprises a location server.

16. The method of claim 12 , in which the network device comprises a base station.

17. The method of claim 12 , in which transmitting comprises multicasting the location-based downlink interference assistance information to a group of UEs in a predetermined direction from the network device or in a geographic zone.

18. An apparatus for wireless communications by a user equipment (UE), comprising:

means for receiving location-based downlink interference assistance information according to a current geolocation of the UE, the location-based downlink interference assistance information comprising a spatial interference pattern indicating an incoming direction of dominant interference; and

means for estimating downlink interference according to the location-based downlink interference assistance information.

19. The apparatus of claim 18 , in which the location-based downlink interference assistance information further comprises a strength of the dominant interference at the current geolocation of the UE.

20. The apparatus of claim 18 , further comprising means for projecting the incoming direction of the dominant interference on to a local coordinate system of the UE based on an orientation of the UE and an arrangement of antennas of the UE.

21. The apparatus of claim 18 , in which the incoming direction of the dominant interference is associated with time resources and/or frequency resources indicated by the interference assistance information.

22. The apparatus of claim 18 , in which the incoming direction of the dominant interference comprises a plurality of directions.

23. The apparatus of claim 18 , in which the incoming direction of the dominant interference is relative to a globally fixed coordinate system based on a direction of arrival of a desired signal from a serving cell.

24. The apparatus of claim 18 , further comprising means for estimating a downlink interference covariance matrix across antennas of the UE based on the location-based downlink interference assistance information.

25. The apparatus of claim 18 , further comprising means for suppressing interference across antennas of the UE based on the location-based downlink interference assistance information.

26. The apparatus of claim 18 , further comprising means for demodulating data based on the location-based downlink interference assistance information.

27. The apparatus of claim 18 , further comprising means for transmitting channel state information (CSI) feedback based on the location-based downlink interference assistance information.

28. The apparatus of claim 18 , further comprising means for selecting an array of antennas based on the location-based downlink interference assistance information.

29. A user equipment (UE), comprising:

a processor;

a memory coupled with the processor; and

instructions stored in the memory and operable, when executed by the processor, to cause the UE:

to receive location-based downlink interference assistance information according to a current geolocation of the UE, the location-based downlink interference assistance information comprising a spatial interference pattern indicating an incoming direction of dominant interference; and

to estimate downlink interference according to the location-based downlink interference assistance information.

30. The UE of claim 29 , in which the location-based downlink interference assistance information further comprises a strength of the dominant interference at the current geolocation of the UE.