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1. (WO2018063972) REFERENCE SIGNAL DESIGN
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CLAIMS

What is claimed is:

1. A method for wireless communication, the method comprising:

determining at least one reference signal (RS) pattern for allocating a reference signal on an uplink channel and a downlink channel based on one or more transmission factors for transmitting the reference signal, wherein at least a portion of the at least one RS pattern is the same for the uplink channel and the downlink channel; and

transmitting the reference signal using the determined RS pattern.

2. The method of claim 1, wherein the RS pattern comprises at least one of a number and location of symbols allocated to the reference signal, and tones of a symbol allocated to the reference signal.

3. The method of claim 2, wherein the RS pattern applies to a plurality of waveform types.

4. The method of claim 1, wherein the transmission factors comprise one or more of: a Doppler mode, a payload size, a MTMO configuration, a turnaround time requirement, and whether mixed waveforms are used for transmission.

5. The method of claim 1, further comprising explicitly configuring tones allocated to the reference signal.

6. The method of claim 5, further comprising receiving an indication in an uplink grant of whether mixed waveforms are used for transmission.

7. The method of claim 1, further comprising implicitly configuring tones to the reference signal based on the one or more transmission factors for transmitting the reference signal.

8. The method of claim 1, wherein tones not allocated to the reference signal of a user equipment are used for transmission for a different antenna port than used for the reference signal transmission, for a different user equipment than used for the reference signal transmission, or for a same user equipment as used for the reference signal transmission for data transmission.

9. The method of claim 1, wherein tones allocated to the reference signal that are allocated for transmission from a plurality of user equipments using a same waveform or different waveforms are transmitted in different combs.

10. The method of claim 1, further comprising:

determining a reference signal sequence to use to generate the reference for a resource block based on a location of the resource block allocated for the reference signal;

generating the reference signal utilizing the determined reference signal sequence.

11. The method of claim 10, wherein the reference signal sequence for the resource block is a sub-sequence of a mother sequence occupying a bandwidth comprising a plurality of resources blocks.

12. The method of claim 11, wherein reference signals in different combs use different sub-sequences of the same mother sequence with respect to comb locations.

13. The method of claim 1, further comprising:

determining if a payload size of a frame structure of a physical uplink control channel (PUCCH) is substantially equal to a payload size of a frame structure of a physical uplink shared channel (PUSCH); and

determining the at least one reference signal pattern for the PUCCH based on a reference signal pattern for the PUSCH.

14. An apparatus for wireless communication comprising:

a memory; and

a processor configured to:

determine at least one reference signal (RS) pattern for allocating a reference signal on an uplink channel and a downlink channel based on one or more transmission factors for transmitting the reference signal, wherein at least a portion of the at least one RS pattern is the same for the uplink channel and the downlink channel; and

transmit the reference signal using the determined RS pattern.

15. The apparatus of claim 14, wherein the RS pattern comprises at least one of a number and location of symbols allocated to the reference signal, and tones of a symbol allocated to the reference signal.

16. The apparatus of claim 15, wherein the RS pattern applies to a plurality of waveform types.

17. The apparatus of claim 14, wherein the transmission factors comprise one or more of: a Doppler mode, a payload size, a MIMO configuration, a turnaround time requirement, and whether mixed waveforms are used for transmission.

18. The apparatus of claim 14, wherein the processor is further configured to explicitly configure tones allocated to the reference signal.

19. The apparatus of claim 18, wherein the processor is further configured to receive an indication in an uplink grant of whether mixed waveforms are used for transmission.

20. The apparatus of claim 14, wherein the processor is further configured to implicitly configure tones to the reference signal based on the one or more transmission factors for transmitting the reference signal.

21. The apparatus of claim 14, wherein tones not allocated to the reference signal of a user equipment are used for transmission for a different antenna port than used for the reference signal transmission, for a different user equipment than used for the reference signal transmission, or for a same user equipment as used for the reference signal transmission for data transmission.

22. The apparatus of claim 14, wherein tones allocated to the reference signal that are allocated for transmission from a plurality of user equipments using a same waveform or different waveforms are transmitted in different combs.

23. The apparatus of claim 14, wherein the processor is further configured to:

determine a reference signal sequence to use to generate the reference for a resource block based on a location of the resource block allocated for the reference signal;

generate the reference signal utilizing the determined reference signal sequence.

24. The apparatus of claim 23, wherein the reference signal sequence for the resource block is a sub-sequence of a mother sequence occupying a bandwidth comprising a plurality of resources blocks.

25. The apparatus of claim 24, wherein reference signals in different combs use different sub-sequences of the same mother sequence with respect to comb locations.

26. The apparatus of claim 14, wherein the processor is further configured to:

determine if a payload size of a frame structure of a physical uplink control channel (PUCCH) is substantially equal to a payload size of a frame structure of a physical uplink shared channel (PUSCH); and

determine the at least one reference signal pattern for the PUCCH based on a reference signal pattern for the PUSCH.

27. An apparatus for wireless communication comprising:

means for determining at least one reference signal (RS) pattern for allocating a reference signal on an uplink channel and a downlink channel based on one or more transmission factors for transmitting the reference signal, wherein at least a portion of the at least one RS pattern is the same for the uplink channel and the downlink channel; and

means for transmitting the reference signal using the determined RS pattern.

28. The apparatus of claim 27, wherein the RS pattern comprises at least one of a number and location of symbols allocated to the reference signal, and tones of a symbol allocated to the reference signal.

29. A computer readable medium having instructions stored thereon for causing at least one processor to perform a method, the method comprising:

determining at least one reference signal (RS) pattern for allocating a reference signal on an uplink channel and a downlink channel based on one or more transmission factors for transmitting the reference signal, wherein at least a portion of the at least one RS pattern is the same for the uplink channel and the downlink channel; and

transmitting the reference signal using the determined RS pattern.

30. The computer readable medium of claim 29, wherein the RS pattern comprises at least one of a number and location of symbols allocated to the reference signal, and tones of a symbol allocated to the reference signal.