Dynamically convey information of demodulation reference signal and phase noise compensation reference signal

1. A method of wireless communication of a base station, comprising:

determining at least one of a number of one or more demodulation reference signal (DM-RS) symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols;

transmitting the at least one of the number of the one or more DM-RS symbols or the one or more locations within the subframe for the transmission of the one or more DM-RS symbols to a user equipment (UE);

determining a resource allocation scheme for a phase noise compensation reference signal (PC-RS) in relation to the one or more DM-RS symbols in the subframe, wherein the PC-RS is conveyed from the base station to the UE for the UE to estimate a phase noise of the UE; and

transmitting the resource allocation scheme for the PC-RS to the UE.

2. The method of claim 1 , wherein the transmitting of the resource allocation scheme for the PC-RS to the UE comprises sending the resource allocation scheme for the PC-RS to the UE dynamically via physical downlink control channel (PDCCH).

3. The method of claim 2 , wherein one or more bits are reserved in downlink control information (DCI) to identify the resource allocation scheme for the PC-RS.

4. The method of claim 1 , wherein the transmitting of the resource allocation scheme for the PC-RS to the UE comprises sending the resource allocation scheme for the PC-RS to the UE via radio resource control (RRC) signaling.

5. The method of claim 1 , wherein the resource allocation scheme informs the UE to rate match the PC-RS around subcarriers of the one or more DM-RS symbols.

6. The method of claim 1 , wherein the resource allocation scheme informs the UE to puncture the one or more DM-RS symbols in subcarriers that are reserved for the PC-RS.

7. The method of claim 1 , wherein the resource allocation scheme informs the UE to puncture the PC-RS in the one or more DM-RS symbols.

8. A method of wireless communication of a base station, comprising:

determining information to be conveyed by a physical downlink control channel (PDCCH);

allocating a phase noise compensation reference signal (PC-RS) in relation to one or more demodulation reference signal (DM-RS) symbols; and

transmitting the information to a user equipment (UE) via the PDCCH, wherein the PDCCH is punctured to accommodate the PC-RS conveyed from the base station to the UE for the UE to estimate a phase noise of the UE.

9. The method of claim 8 , wherein the information comprises at least one of a number of the one or more DM-RS symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols.

10. The method of claim 9 , wherein one or more bits are reserved in downlink control information (DCI) to identify the at least one of the number of the one or more DM-RS symbols or the one or more locations within the subframe for the transmission of the one or more DM-RS symbols.

11. The method of claim 9 , wherein the number of the one or more DM-RS symbols is one, wherein the one or more locations comprise a first symbol of physical downlink shared channel (PDSCH).

12. The method of claim 9 , wherein the number of the one or more DM-RS symbols is two, wherein the one or more locations comprise a first location at a beginning of physical downlink shared channel (PDSCH) and a second location in a middle of the PDSCH, the first location and the second location being separated by at least one symbol.

13. A method of wireless communication of a user equipment (UE), comprising:

receiving at least one of a number of one or more demodulation reference signal (DM-RS) symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols from a base station;

decoding the one or more DM-RS symbols from the subframe based on the at least one of the number of the one or more DM-RS symbols or the one or more locations;

receiving a resource allocation scheme for a phase noise compensation reference signal (PC-RS); and

decoding the PC-RS from the subframe based on the resource allocation scheme for the PC-RS.

14. The method of claim 13 , wherein the resource allocation scheme for the PC-RS is determined with regard to the one or more DM-RS symbols.

15. The method of claim 13 , wherein the receiving of the resource allocation scheme for the PC-RS comprises receiving the resource allocation scheme for the PC-RS dynamically via physical downlink control channel (PDCCH).

16. The method of claim 15 , wherein one or more bits are reserved in downlink control information (DCI) to identify the resource allocation scheme for the PC-RS.

17. The method of claim 13 , wherein the receiving of the resource allocation scheme for the PC-RS comprises receiving the resource allocation scheme for the PC-RS via radio resource control (RRC) signaling.

18. The method of claim 13 , wherein the resource allocation scheme informs the UE to rate match the PC-RS around subcarriers of the one or more DM-RS symbols.

19. The method of claim 13 , wherein the resource allocation scheme informs the UE to puncture the one or more DM-RS symbols in subcarriers that are reserved for the PC-RS.

20. The method of claim 13 , wherein the resource allocation scheme informs the UE to puncture the PC-RS in the one or more DM-RS symbols.

21. A method of wireless communication of a user equipment (UE), comprising:

receiving a first information via a physical downlink control channel (PDCCH) from a base station, wherein the PDCCH is punctured to accommodate a phase noise compensation reference signal (PC-RS) conveyed from the base station to the UE for the UE to estimate a phase noise of the UE, wherein the first information comprises at least one of a number of one or more demodulation reference signal (DM-RS) symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols from the base station; and

decoding the one or more DM-RS symbols from the subframe based on the at least one of the number of the one or more DM-RS symbols or the one or more locations.

22. The method of claim 21 , wherein one or more bits are reserved in downlink control information (DCI) to identify the at least one of the number of the one or more DM-RS symbols or the one or more locations within the subframe for the transmission of the one or more DM-RS symbols.

23. The method of claim 21 , wherein the number of the one or more DM-RS symbols is one, wherein the one or more locations comprise a first symbol of physical downlink shared channel (PDSCH).

24. The method of claim 21 , wherein the number of the one or more DM-RS symbols is two, wherein the one or more locations comprise a first location at a beginning of physical downlink shared channel (PDSCH) and a second location in a middle of the PDSCH, the first location and the second location being separated by at least one symbol.

25. An apparatus for wireless communication, the apparatus being a base station, comprising:

means for determining at least one of a number of one or more demodulation reference signal (DM-RS) symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols;

means for transmitting the at least one of the number of the one or more DM-RS symbols or the one or more locations within the subframe for the transmission of the one or more DM-RS symbols to a user equipment (UE);

means for determining a resource allocation scheme for a phase noise compensation reference signal (PC-RS) in relation to the one or more DM-RS symbols in the subframe, wherein the PC-RS is conveyed from the base station to the UE for the UE to estimate a phase noise of the UE; and

means for transmitting the resource allocation scheme for the PC-RS to the UE.

26. The apparatus of claim 25 , wherein the means for transmitting the resource allocation scheme for the PC-RS to the UE is configured to send the resource allocation scheme for the PC-RS to the UE dynamically via physical downlink control channel (PDCCH).

27. The apparatus of claim 26 , wherein one or more bits are reserved in downlink control information (DCI) to identify the resource allocation scheme for the PC-RS.

28. The apparatus of claim 25 , wherein the means for transmitting the resource allocation scheme for the PC-RS to the UE is configured to send the resource allocation scheme for the PC-RS to the UE via radio resource control (RRC) signaling.

29. The apparatus of claim 25 , wherein the resource allocation scheme informs the UE to rate match the PC-RS around subcarriers of the one or more DM-RS symbols.

30. The apparatus of claim 25 , wherein the resource allocation scheme informs the UE to puncture the one or more DM-RS symbols in subcarriers that are reserved for the PC-RS.

31. The apparatus of claim 25 , wherein the resource allocation scheme informs the UE to puncture the PC-RS in the one or more DM-RS symbols.

32. An apparatus for wireless communication, the apparatus being a base station, comprising:

means for determining information to be conveyed by a physical downlink control channel (PDCCH);

means for allocating a phase noise compensation reference signal (PC-RS) in relation to one or more demodulation reference signal (DM-RS) symbols; and

means for transmitting the information to a user equipment (UE) via the PDCCH, wherein the PDCCH is punctured to accommodate the PC-RS conveyed from the base station to the UE for the UE to estimate a phase noise of the UE.

33. The apparatus of claim 32 , wherein the information comprises at least one of a number of the one or more DM-RS symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols.

34. The apparatus of claim 33 , wherein one or more bits are reserved in downlink control information (DCI) to identify the at least one of the number of the one or more DM-RS symbols or the one or more locations within the subframe for the transmission of the one or more DM-RS symbols.

35. The apparatus of claim 33 , wherein the number of the one or more DM-RS symbols is one, wherein the one or more locations comprise a first symbol of physical downlink shared channel (PDSCH).

36. The apparatus of claim 33 , wherein the number of the one or more DM-RS symbols is two, wherein the one or more locations comprise a first location at a beginning of physical downlink shared channel (PDSCH) and a second location in a middle of the PDSCH, the first location and the second location being separated by at least one symbol.

37. An apparatus for wireless communication, the apparatus being a user equipment (UE), comprising:

means for receiving at least one of a number of one or more demodulation reference signal (DM-RS) symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols from a base station;

means for decoding the one or more DM-RS symbols from the subframe based on the at least one of the number of the one or more DM-RS symbols or the one or more locations;

means for receiving a resource allocation scheme for a phase noise compensation reference signal (PC-RS); and

means for decoding the PC-RS from the subframe based on the resource allocation scheme for the PC-RS.

38. The apparatus of claim 37 , wherein the resource allocation scheme for the PC-RS is determined with regard to the one or more DM-RS symbols.

39. The apparatus of claim 37 , wherein the means for receiving the resource allocation scheme for the PC-RS is configured to receive the resource allocation scheme for the PC-RS dynamically via physical downlink control channel (PDCCH).

40. The apparatus of claim 39 , wherein one or more bits are reserved in downlink control information (DCI) to identify the resource allocation scheme for the PC-RS.

41. The apparatus of claim 37 , wherein the means for receiving the resource allocation scheme for the PC-RS is configured to receive the resource allocation scheme for the PC-RS via radio resource control (RRC) signaling.

42. The apparatus of claim 37 , wherein the resource allocation scheme informs the UE to rate match the PC-RS around subcarriers of the one or more DM-RS symbols.

43. The apparatus of claim 37 , wherein the resource allocation scheme informs the UE to puncture the one or more DM-RS symbols in subcarriers that are reserved for the PC-RS.

44. The apparatus of claim 37 , wherein the resource allocation scheme informs the UE to puncture the PC-RS in the one or more DM-RS symbols.

45. An apparatus for wireless communication, the apparatus being a user equipment (UE), comprising:

means for receiving a first information via a physical downlink control channel (PDCCH) from a base station, wherein the PDCCH is punctured to accommodate a phase noise compensation reference signal (PC-RS) conveyed from the base station to the UE for the UE to estimate a phase noise of the UE, wherein the first information comprises at least one of a number of one or more demodulation reference signal (DM-RS) symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols from the base station; and

decoding the one or more DM-RS symbols from the subframe based on the at least one of the number of the one or more DM-RS symbols or the one or more locations.

46. The apparatus of claim 45 , wherein one or more bits are reserved in downlink control information (DCI) to identify the at least one of the number of the one or more DM-RS symbols or the one or more locations within the subframe for the transmission of the one or more DM-RS symbols.

47. The apparatus of claim 45 , wherein the number of the one or more DM-RS symbols is one, wherein the one or more locations comprise a first symbol of physical downlink shared channel (PDSCH).

48. The apparatus of claim 45 , wherein the number of the one or more DM-RS symbols is two, wherein the one or more locations comprise a first location at a beginning of physical downlink shared channel (PDSCH) and a second location in a middle of the PDSCH, the first location and the second location being separated by at least one symbol.

49. An apparatus for wireless communication, the apparatus being a base station, comprising:

a memory; and

at least one processor coupled to the memory and configured to:

determine at least one of a number of one or more demodulation reference signal (DM-RS) symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols;

transmit the at least one of the number of the one or more DM-RS symbols or the one or more locations within the subframe for the transmission of the one or more DM-RS symbols to a user equipment (UE);

determine a resource allocation scheme for a phase noise compensation reference signal (PC-RS) in relation to the one or more DM-RS symbols in the subframe, wherein the PC-RS is conveyed from the base station to the UE for the UE to estimate a phase noise of the UE; and

transmit the resource allocation scheme for the PC-RS to the UE.

50. The apparatus of claim 49 , wherein, to transmit the resource allocation scheme for the PC-RS to the UE, the at least one processor is configured to send the resource allocation scheme for the PC-RS to the UE dynamically via physical downlink control channel (PDCCH).

51. The apparatus of claim 50 , wherein one or more bits are reserved in downlink control information (DCI) to identify the resource allocation scheme for the PC-RS.

52. The apparatus of claim 49 , wherein, to transmit the resource allocation scheme for the PC-RS to the UE, the at least one processor is configured to send the resource allocation scheme for the PC-RS to the UE via radio resource control (RRC) signaling.

53. The apparatus of claim 49 , wherein the resource allocation scheme informs the UE to rate match the PC-RS around subcarriers of the one or more DM-RS symbols.

54. The apparatus of claim 49 , wherein the resource allocation scheme informs the UE to puncture the one or more DM-RS symbols in subcarriers that are reserved for the PC-RS.

55. The apparatus of claim 49 , wherein the resource allocation scheme informs the UE to puncture the PC-RS in the one or more DM-RS symbols.

56. An apparatus for wireless communication, the apparatus being a base station, comprising:

a memory; and

at least one processor coupled to the memory and configured to:

determine information to be conveyed by a physical downlink control channel (PDCCH);

allocate a phase noise compensation reference signal (PC-RS) in relation to one or more demodulation reference signal (DM-RS) symbols; and

transmit the information to a user equipment (UE) via the PDCCH, wherein the PDCCH is punctured to accommodate the PC-RS conveyed from the base station to the UE for the UE to estimate a phase noise of the UE.

57. The apparatus of claim 56 , wherein the information comprises at least one of a number of the one or more DM-RS symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols.

58. The apparatus of claim 57 , wherein one or more bits are reserved in downlink control information (DCI) to identify the at least one of the number of the one or more DM-RS symbols or the one or more locations within the subframe for the transmission of the one or more DM-RS symbols.

59. The apparatus of claim 57 , wherein the number of the one or more DM-RS symbols is one, wherein the one or more locations comprise a first symbol of physical downlink shared channel (PDSCH).

60. The apparatus of claim 57 , wherein the number of the one or more DM-RS symbols is two, wherein the one or more locations comprise a first location at a beginning of physical downlink shared channel (PDSCH) and a second location in a middle of the PDSCH, the first location and the second location being separated by at least one symbol.

61. An apparatus for wireless communication, the apparatus being a user equipment (UE), comprising:

a memory; and

at least one processor coupled to the memory and configured to:

receive at least one of a number of one or more demodulation reference signal (DM-RS) symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols from a base station;

decode the one or more DM-RS symbols from the subframe based on the at least one of the number of the one or more DM-RS symbols or the one or more locations;

receive a resource allocation scheme for a phase noise compensation reference signal (PC-RS); and

decode the PC-RS from the subframe based on the resource allocation scheme for the PC-RS.

62. The apparatus of claim 61 , wherein the resource allocation scheme for the PC-RS is determined with regard to the one or more DM-RS symbols.

63. The apparatus of claim 61 , wherein, to receive the resource allocation scheme for the PC-RS, the at least one processor is configured to receive the resource allocation scheme for the PC-RS dynamically via physical downlink control channel (PDCCH).

64. The apparatus of claim 63 , wherein one or more bits are reserved in downlink control information (DCI) to identify the resource allocation scheme for the PC-RS.

65. The apparatus of claim 61 , wherein, to receive the resource allocation scheme for the PC-RS, the at least one processor is configured to receive the resource allocation scheme for the PC-RS via radio resource control (RRC) signaling.

66. The apparatus of claim 61 , wherein the resource allocation scheme informs the UE to rate match the PC-RS around subcarriers of the one or more DM-RS symbols.

67. The apparatus of claim 61 , wherein the resource allocation scheme informs the UE to puncture the one or more DM-RS symbols in subcarriers that are reserved for the PC-RS.

68. The apparatus of claim 61 , wherein the resource allocation scheme informs the UE to puncture the PC-RS in the one or more DM-RS symbols.

69. An apparatus for wireless communication, the apparatus being a user equipment (UE), comprising:

a memory; and

at least one processor coupled to the memory and configured to:

receive a first information via a physical downlink control channel (PDCCH) from a base station, wherein the PDCCH is punctured to accommodate a phase noise compensation reference signal (PC-RS) conveyed from the base station to the UE for the UE to estimate a phase noise of the UE, wherein the first information comprises at least one of a number of one or more demodulation reference signal (DM-RS) symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols from the base station; and

decode the one or more DM-RS symbols from the subframe based on the at least one of the number of the one or more DM-RS symbols or the one or more locations.

70. The apparatus of claim 69 , wherein one or more bits are reserved in downlink control information (DCI) to identify the at least one of the number of the one or more DM-RS symbols or the one or more locations within the subframe for the transmission of the one or more DM-RS symbols.

71. The apparatus of claim 69 , wherein the number of the one or more DM-RS symbols is one, wherein the one or more locations comprise a first symbol of physical downlink shared channel (PDSCH).

72. The apparatus of claim 69 , wherein the number of the one or more DM-RS symbols is two, wherein the one or more locations comprise a first location at a beginning of physical downlink shared channel (PDSCH) and a second location in a middle of the PDSCH, the first location and the second location being separated by at least one symbol.

73. A non-transitory computer-readable medium storing computer executable code, comprising code to:

determine at least one of a number of one or more demodulation reference signal (DM-RS) symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols;

transmit the at least one of the number of the one or more DM-RS symbols or the one or more locations within the subframe for the transmission of the one or more DM-RS symbols to a user equipment (UE);

determine a resource allocation scheme for a phase noise compensation reference signal (PC-RS) in relation to the one or more DM-RS symbols in the subframe, wherein the PC-RS is conveyed from a base station to the UE for the UE to estimate a phase noise of the UE; and

transmit the resource allocation scheme for the PC-RS to the UE.

74. A non-transitory computer-readable medium storing computer executable code, comprising code to:

determine information to be conveyed by a physical downlink control channel (PDCCH);

allocate a phase noise compensation reference signal (PC-RS) in relation to one or more demodulation reference signal (DM-RS) symbols; and

transmit the information to a user equipment (UE) via the PDCCH, wherein the PDCCH is punctured to accommodate the PC-RS conveyed from a base station to the UE for the UE to estimate a phase noise of the UE.

75. A non-transitory computer-readable medium storing computer executable code, comprising code to:

receive at least one of a number of one or more demodulation reference signal (DM-RS) symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols from a base station;

decode the one or more DM-RS symbols from the subframe based on the at least one of the number of the one or more DM-RS symbols or the one or more locations;

receive a resource allocation scheme for a phase noise compensation reference signal (PC-RS); and

decode the PC-RS from the subframe based on the resource allocation scheme for the PC-RS.

76. A non-transitory computer-readable medium storing computer executable code, comprising code to:

receive a first information via a physical downlink control channel (PDCCH) from a base station, wherein the PDCCH is punctured to accommodate a phase noise compensation reference signal (PC-RS) conveyed from the base station to user equipment (UE) for the UE to estimate a phase noise of the UE, wherein the first information comprises at least one of a number of one or more demodulation reference signal (DM-RS) symbols or one or more locations within a subframe for transmission of the one or more DM-RS symbols from the base station; and

decode the one or more DM-RS symbols from the subframe based on the at least one of the number of the one or more DM-RS symbols or the one or more locations.