Control resource set design under single carrier waveform

1. A method for wireless communication at a user equipment (UE), comprising:

receiving an indication of a configuration for a control resource set used for a single carrier waveform transmission, the control resource set comprising one or more pilot regions and one or more control channel regions corresponding to the one or more pilot regions, the one or more pilot regions and the one or more control channel regions spanning a bandwidth of the single carrier waveform transmission;

monitoring, based at least in part on the received indication of the configuration, the one or more pilot regions of the control resource set for a pilot signal for the UE, each of the one or more pilot regions time division multiplexed with a corresponding one of the one or more control channel regions; and

decoding, based at least in part on the pilot signal, a control channel signal for the UE received in a first control channel region of the one or more control channel regions of the control resource set.

2. The method of claim 1 , wherein:

the one or more control channel regions are non-overlapping; and

each one of the one or more control channel regions is associated with one of the one or more pilot regions, the one of the one or more control channel regions and the associated one of the one or more pilot regions associated with a same transmission beam.

3. The method of claim 2 , wherein:

the control channel signal is restricted by the configuration to be transmitted within one of the one or more control channel regions.

4. The method of claim 1 , wherein:

first time resources for the control resource set are of a different size, or overlap at least in part with, or a combination thereof, than second time resources for a second control resource set.

5. The method of claim 1 , wherein:

the control channel signal comprises a physical downlink control channel (PDCCH) conveying downlink control information, or an uplink grant, or a downlink grant, or a combination thereof; and

the pilot signal comprises a demodulation reference signal (DMRS).

6. The method of claim 1 , further comprising:

performing independent channel estimation for pilot signals in different pilot regions of the one or more pilot regions.

7. The method of claim 1 , further comprising:

determining that the one or more pilot regions are associated with a same control channel; and

performing a joint channel estimation for the one or more pilot regions that are associated with the same control channel.

8. The method of claim 1 , wherein:

a bandwidth of a single carrier waveform transmission for a first pilot region of the one or more pilot regions and the first control channel region is different than a bandwidth of a single carrier waveform transmission for a second pilot region of the one or more pilot regions and a second control channel region of the one or more control channel regions.

9. A method for wireless communication at a base station, comprising:

identifying, at the base station, a configuration for a control resource set used to transmit control data using a single carrier waveform transmission;

transmitting pilot signals in one or more pilot regions of the control resource set, the one or more pilot regions spanning a bandwidth of the single carrier waveform transmission; and

transmitting control channel signals in one or more control channel regions of the control resource set, each of the pilot signals of the control resource set time division multiplexed with a corresponding one of the control channel signals of the control resource set, and the one or more control channel regions spanning the bandwidth of the single carrier waveform transmission.

10. The method of claim 9 , wherein:

the one or more pilot regions comprise a single pilot region for one UE and the one or more control channel regions comprise a single control channel region corresponding to the single pilot region for the one UE.

11. The method of claim 9 , wherein:

the control resource set comprises a single pilot region and a single control channel region.

12. The method of claim 9 , further comprising:

transmitting an indication of the configuration for the control resource set.

13. An apparatus for wireless communication, comprising:

a processor;

memory in electronic communication with the processor; and

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

receive an indication of a configuration for a control resource set used for a single carrier waveform transmission, the control resource set comprising one or more pilot regions and one or more control channel regions corresponding to the one or more pilot regions, the one or more pilot regions and the one or more control channel regions spanning a bandwidth of the single carrier waveform transmission;

monitor, based at least in part on the received indication of the configuration, the one or more pilot regions of the control resource set for a pilot signal for the UE, each of the one or more pilot regions time division multiplexed with a corresponding one of the one or more control channel regions; and

decode, based at least in part on the pilot signal, a control channel signal for the UE received in a first control channel region of the one or more control channel regions of the control resource set.

14. The apparatus of claim 13 , wherein:

the one or more control channel regions are non-overlapping; and

each one of the one or more control channel regions is associated with one of the one or more pilot regions, the one of the one or more control channel regions and the associated one of the one or more pilot regions associated with a same transmission beam.

15. The apparatus of claim 14 , wherein:

the control channel signal is restricted by the configuration to be transmitted within one of the one or more control channel regions.

16. The apparatus of claim 13 , wherein:

first time resources for the control resource set are of a different size, or overlap at least in part with, or a combination thereof, than second time resources for a second control resource set.

17. The apparatus of claim 13 , wherein:

the control channel signal comprises a physical downlink control channel (PDCCH) conveying downlink control information, or an uplink grant, or a downlink grant, or a combination thereof; and

the pilot signal comprises a demodulation reference signal (DMRS).

18. The apparatus of claim 13 , wherein the instructions are further executable by the processor to cause the apparatus to:

perform independent channel estimation for pilot signals in different pilot regions of the one or more pilot regions.

19. The apparatus of claim 13 , wherein the instructions are further executable by the processor to cause the apparatus to:

determine that the one or more pilot regions are associated with a same control channel; and

perform a joint channel estimation for the one or more pilot regions that are associated with the same control channel.

20. The apparatus of claim 13 , wherein:

a bandwidth of a single carrier waveform transmission for a first pilot region of the one or more pilot regions and the first control channel region is different than a bandwidth of a single carrier waveform transmission for a second pilot region of the one or more pilot regions and a second control channel region of the one or more control channel regions.

21. An apparatus for wireless communication, comprising:

a processor;

memory in electronic communication with the processor; and

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

identify, at the apparatus, a configuration for a control resource set used to transmit control data using a single carrier waveform transmission;

transmit pilot signals in one or more pilot regions of the control resource set, the one or more pilot regions spanning a bandwidth of the single carrier waveform transmission; and

transmit control channel signals in one or more control channel regions of the control resource set, each of the pilot signals of the control resource set time division multiplexed with a corresponding one of the control channel signals of the control resource set, and the one or more control channel regions spanning the bandwidth of the single carrier waveform transmission.

22. The apparatus of claim 21 , wherein:

the one or more pilot regions comprise a single pilot region for one UE and the one or more control channel regions comprise a single control channel region corresponding to the single pilot region for the one UE.

23. The apparatus of claim 21 , wherein:

the one or more pilot regions comprise a single pilot region for one UE and the one or more control channel regions comprise a single control channel region corresponding to the single pilot region for the one UE.

24. The apparatus of claim 21 , wherein:

the control resource set comprises a single pilot region and a single control channel region.

25. A method for wireless communication at a user equipment (UE), comprising:

receiving an indication of a configuration for a control resource set used for a single carrier waveform transmission, the control resource set comprising one or more pilot regions and one or more control channel regions corresponding to the one or more pilot regions, the one or more pilot regions and the one or more control channel regions spanning a bandwidth of the single carrier waveform transmission;

monitoring, based at least in part on the received indication of the configuration, the one or more pilot regions of the control resource set for the pilot signal for the UE, the one or more pilot regions comprising a plurality of time division multiplexed pilot regions for a plurality of UEs; and

decoding, based at least in part on the pilot signal, a control channel signal for the UE received in a first control channel region of the one or more control channel regions of the control resource set.

26. The method of claim 25 , further comprising:

monitoring a shared control channel region of the control resource set for the control channel signal for the UE.

27. The method of claim 25 , wherein:

first time resources for the control resource set are of a different size, or overlap at least in part with, or a combination thereof, than second time resources for a second control resource set.

28. The method of claim 25 , wherein:

the control channel signal comprises a physical downlink control channel (PDCCH) conveying downlink control information, or an uplink grant, or a downlink grant, or a combination thereof; and

the pilot signal comprises a demodulation reference signal (DMRS).

29. The method of claim 25 , further comprising:

performing independent channel estimation for pilot signals in different pilot regions of the one or more pilot regions.

30. The method of claim 25 , further comprising:

determining that the one or more pilot regions are associated with a same control channel; and

performing a joint channel estimation for the one or more pilot regions that are associated with the same control channel.

31. The method of claim 25 , wherein:

a bandwidth of a single carrier waveform transmission for a first pilot region of the one or more pilot regions and the first control channel region is different than a bandwidth of a single carrier waveform transmission for a second pilot region of the one or more pilot regions and a second control channel region of the one or more control channel regions.

32. An apparatus for wireless communication, comprising:

a processor;

memory in electronic communication with the processor; and

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

receive an indication of a configuration for a control resource set used for a single carrier waveform transmission, the control resource set comprising one or more pilot regions and one or more control channel regions corresponding to the one or more pilot regions, the one or more pilot regions and the one or more control channel regions spanning a bandwidth of the single carrier waveform transmission;

monitor, based at least in part on the received indication of the configuration, the one or more pilot regions of the control resource set for the pilot signal for the UE, the one or more pilot regions comprising a plurality of time division multiplexed pilot regions for a plurality of UEs; and

decode, based at least in part on the pilot signal, a control channel signal for the UE received in a first control channel region of the one or more control channel regions of the control resource set.

33. The apparatus of claim 32 , wherein the instructions are further executable by the processor to cause the apparatus to:

monitor a shared control channel region of the control resource set for the control channel signal for the UE.

34. The apparatus of claim 32 , wherein:

first time resources for the control resource set are of a different size, or overlap at least in part with, or a combination thereof, than second time resources for a second control resource set.

35. The apparatus of claim 32 , wherein:

the control channel signal comprises a physical downlink control channel (PDCCH) conveying downlink control information, or an uplink grant, or a downlink grant, or a combination thereof; and

the pilot signal comprises a demodulation reference signal (DMRS).

36. The apparatus of claim 32 , wherein the instructions are further executable by the processor to cause the apparatus to:

perform independent channel estimation for pilot signals in different pilot regions of the one or more pilot regions.

37. The apparatus of claim 32 , wherein the instructions are further executable by the processor to cause the apparatus to:

determine that the one or more pilot regions are associated with a same control channel; and

perform a joint channel estimation for the one or more pilot regions that are associated with the same control channel.

38. The apparatus of claim 32 , wherein:

a bandwidth of a single carrier waveform transmission for a first pilot region of the one or more pilot regions and the first control channel region is different than a bandwidth of a single carrier waveform transmission for a second pilot region of the one or more pilot regions and a second control channel region of the one or more control channel regions.

39. A method for wireless communication at a base station, comprising:

identifying, at the base station, a configuration for a control resource set used to transmit control data using a single carrier waveform transmission;

time division multiplexing a first pilot signal in a first pilot region of the control resource set for a first UE, a second pilot signal in a second pilot region of the control resource set for a second UE, and a first control channel signal and a second control channel signal in a shared control channel region of the control resource set for at least the first UE and the second UE;

transmitting pilot signals in one or more pilot regions of the control resource set, the one or more pilot regions spanning a bandwidth of the single carrier waveform transmission; and

transmitting control channel signals in one or more control channel regions of the control resource set, the control channel signals corresponding to the pilot signals, and the one or more control channel regions spanning the bandwidth of the single carrier waveform transmission.

40. The method of claim 39 , further comprising:

time division multiplexing the pilot signals with corresponding control region groups, the corresponding control region groups comprising the control channel signals.

41. An apparatus for wireless communication, comprising:

a processor;

memory in electronic communication with the processor; and

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

identify, at the apparatus, a configuration for a control resource set used to transmit control data using a single carrier waveform transmission;

time division multiplex a first pilot signal in a first pilot region of the control resource set for a first UE, a second pilot signal in a second pilot region of the control resource set for a second UE, and a first control channel signal and a second control channel signal in a shared control channel region of the control resource set for at least the first UE and the second UE;

transmit pilot signals in one or more pilot regions of the control resource set, the one or more pilot regions spanning a bandwidth of the single carrier waveform transmission; and

transmit control channel signals in one or more control channel regions of the control resource set, the control channel signals corresponding to the pilot signals, and the one or more control channel regions spanning the bandwidth of the single carrier waveform transmission.

42. The apparatus of claim 41 , wherein the instructions are operable to cause the apparatus to:

time division multiplex the pilot signals with corresponding control region groups, the corresponding control region groups comprising the control channel signals.