Granted Patent B2

US 12,262,332 · App. 17/853,695 · Granted Mar 25, 2025

Inventors: Hemant Saggar (San Diego, CA); Iyab Issam Sakhnini (San Diego, CA); Tao Luo (San Diego, CA); Peter Gaal (San Diego, CA)

Assignee: QUALCOMM Incorporated

H04W52/367H04L27/2607H04W52/36

Abstract

Claims (78)

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

establishing, with a network entity, a wireless connection that uses a set of symbols per transmission time interval for orthogonal frequency division multiplexing communications, wherein each symbol of the set of symbols corresponds to a fast Fourier transform window and includes a guard interval portion and a data portion within the fast Fourier transform window;

receiving a control message indicating at least one parameter associated with a power offset between a data signal of the set of symbols and a reference signal of the set of symbols that is associated with the data signal; and

communicating, with the network entity, the data signal and the reference signal according to the indicated power offset using the set of symbols.

2. The method of claim 1 , wherein communicating the data signal and the reference signal further comprises:

transmitting the reference signal using a first transmit power; and

transmitting the data signal using a second transmit power that is based at least in part on the indicated power offset, wherein the first transmit power and the second transmit power satisfy a maximum transmit power threshold.

3. The method of claim 1 , wherein the power offset comprises a first power offset, the method further comprising:

receiving a second control message indicating at least one parameter associated with a second power offset associated with a symbol type that includes the data signal, the second power offset between the data signal of the symbol type and the reference signal that is associated with the data signal; and

receiving, from the network entity, the data signal and the reference signal according to the second indicated power offset.

4. The method of claim 1 , wherein the at least one parameter associated with the power offset comprises a first power offset, the method further comprising:

receiving a second control message indicating an average power offset and statistical information associated with power offsets across the set of symbols within a fixed duration for the wireless connection; and

receiving the data signal and the reference signal based at least in part on the average power offset and the statistical information.

5. The method of claim 1 , further comprising:

receiving, for the transmission time interval, one or more control signals indicating a power offset for the data signal of the set of symbols relative to an associated reference signal.

6. The method of claim 5 , wherein receiving the one or more control signals comprises:

receiving, for each symbol of the set of symbols, a control signal of the one or more control signals indicating an associated power offset for the symbol.

7. The method of claim 6 , wherein the control signal comprises a reference signal multiplexed in frequency or time with the data signal on a shared channel.

8. The method of claim 6 , wherein the control signal is multiplexed in frequency or time with the data signal on a shared channel.

9. The method of claim 5 , wherein receiving the one or more control signals comprises:

receiving one control signal indicating a power offset applicable for the set of symbols of the transmission time interval.

10. The method of claim 1 , further comprising:

receiving a second control message indicating a power offset threshold associated with a symbol type that includes the data signal, wherein the data signal and the reference signal are communicated according to the power offset using the set of symbols based at least in part on the power offset satisfying the power offset threshold.

11. The method of claim 1 , further comprising:

receiving a set of control messages indicating a respective set of power offsets, each power offset associated with a different symbol type of a set of symbol types, wherein the data signal is a first symbol type of the set of symbol types and the power offset is a first power offset of the set of power offsets that is associated with the first symbol type.

12. The method of claim 11 , wherein the reference signal comprises a demodulation reference signal, and the set of symbol types comprises one or more of signals of a physical downlink shared channel, signals of a physical downlink control channel, signals of a physical uplink shared channel, signals of a physical uplink control channel, position reference signals, or channel state information reference signals.

13. The method of claim 1 , wherein receiving the control message indicating the at least one parameter associated with the power offset comprises:

receiving an indication of whether the UE is to use the power offset between the data signal and the reference signal associated with the data signal.

14. The method of claim 1 , wherein receiving the control message comprises:

receiving downlink control information, a medium access control control element, a radio resource control signal, or a combination thereof.

15. The method of claim 1 , wherein the data signal comprises data tones in data symbols within the set of symbols and the reference signal comprises reference tones in reference symbols within the set of symbols, the reference symbols associated with the data symbols.

16. A method for wireless communications at a network entity, comprising:

establishing, with a user equipment (UE), a wireless connection that uses a set of symbols per transmission time interval for orthogonal frequency division multiplexing communications, wherein each symbol of the set of symbols corresponds to a fast Fourier transform window and includes a guard interval portion and a data portion within the fast Fourier transform window;

transmitting a control message indicating at least one parameter associated with a power offset between a data signal of the set of symbols and a reference signal of the set of symbols that is associated with the data signal; and

communicating, with the UE, the data signal and the reference signal according to the indicated power offset using the set of symbols.

17. The method of claim 16 , wherein communicating the data signal and the reference signal further comprises:

receiving the reference signal using a first transmit power; and

receiving the data signal using a second transmit power that is based at least in part on the indicated power offset, wherein the first transmit power and the transmit power satisfy an average transmit power threshold.

18. The method of claim 16 , wherein the power offset comprises a first power offset, the method further comprising:

transmitting a second control message indicating at least one parameter associated with a second power offset associated with a symbol type that includes the data signal, the second power offset between the data signal of the symbol type and the reference signal that is associated with the data signal; and receiving, from the UE, the data signal and the reference signal according to the second indicated power offset.

19. The method of claim 16 , wherein the at least one parameter associated with the power offset comprises a first power offset, the method further comprising:

transmitting a second control message indicating an average power offset and statistical information associated with power offsets across the set of symbols within a fixed duration for the wireless connection; and

transmitting the data signal and the reference signal based at least in part on the average power offset and the statistical information.

20. The method of claim 16 , further comprising:

transmitting, for the transmission time interval, one or more control signals indicating a power offset for the data signal of the set of symbols relative to an associated reference signal.

21. The method of claim 20 , wherein transmitting the one or more control signals comprises:

transmitting, for each symbol of the set of symbols, a control signal of the one or more control signals indicating an associated power offset for the symbol.

22. The method of claim 20 , wherein transmitting the one or more control signals comprises:

transmitting one control signal indicating a power offset applicable for the set of symbols of the transmission time interval.

23. The method of claim 16 , further comprising:

transmitting a second control message indicating a power offset threshold associated with a symbol type that includes the data signal, wherein the data signal and the reference signal are communicated according to the power offset using the set of symbols based at least in part on the power offset satisfying the power offset threshold.

24. The method of claim 16 , further comprising:

transmitting a set of control messages indicating a respective set of power offsets, each power offset associated with a different symbol type of a set of symbol types, wherein the data signal is a first symbol type of the set of symbol types and the power offset is a first power offset of the set of power offsets that is associated with the first symbol type.

25. The method of claim 16 , wherein transmitting the control message indicating the at least one parameter associated with the power offset comprises:

transmitting an indication of whether the UE is to use the power offset between the data signal and the reference signal associated with the data signal.

26. An apparatus for wireless communications at a user equipment (UE), comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory, wherein the instructions are executable by the processor to:

establish, with a network entity, a wireless connection that uses a set of symbols per transmission time interval for orthogonal frequency division multiplexing communications, wherein each symbol of the set of symbols corresponds to a fast Fourier transform window and includes a guard interval portion and a data portion within the fast Fourier transform window;

receive a control message indicating at least one parameter associated with a power offset between a data signal of the set of symbols and a reference signal of the set of symbols that is associated with the data signal; and

communicate, with the network entity, the data signal and the reference signal according to the indicated power offset using the set of symbols.

27. The apparatus of claim 26 , wherein the instructions executable by the processor to communicate the data signal and the reference signal comprise instructions executable by the processor to:

transmit the reference signal using a first transmit power; and

transmit the data signal using a second transmit power that is based at least in part on the indicated power offset, wherein the first transmit power and the second transmit power satisfy a maximum transmit power threshold.

28. The apparatus of claim 26 , wherein the power offset comprises a first power offset, and the instructions are further executable by the processor to:

receive a second control message indicating at least one parameter associated with a second power offset associated with a symbol type that includes the data signal, the second power offset between the data signal of the symbol type and the reference signal that is associated with the data signal; and

receive, from the network entity, the data signal and the reference signal according to the second indicated power offset.

29. An apparatus for wireless communications at a network entity, comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory, wherein the instructions are executable by the processor to:

establish, with a user equipment (UE), a wireless connection that uses a set of symbols per transmission time interval for orthogonal frequency division multiplexing communications, wherein each symbol of the set of symbols corresponds to a fast Fourier transform window and includes a guard interval portion and a data portion within the fast Fourier transform window;

transmit a control message indicating at least one parameter associated with a power offset between a data signal of the set of symbols and a reference signal of the set of symbols that is associated with the data signal; and

communicate, with the UE, the data signal and the reference signal according to the indicated power offset using the set of symbols.

30. The apparatus of claim 29 , wherein the instructions executable by the processor to communicate the data signal and the reference signal comprise instructions executable by the processor to:

receive the reference signal using a first transmit power; and

receive the data signal using a second transmit power that is based at least in part on the indicated power offset, wherein the first transmit power and the transmit power satisfy an average transmit power threshold.

Assignments (1)

Continuity (1)

References Cited (10)

Cited By (1)

US 12,706,792