Method and device in UE and base station for transmitting power adjustment

1. A method in a User Equipment (UE) for supporting power adjustment, comprising:

receiving a first signaling; and

transmitting a first radio signal;

wherein, a first modulation symbol sequence is used to generate the first radio signal, the first modulation symbol sequence employs a target waveform, a first bit block is used to generate the first modulation symbol sequence, the first signaling is used to determine the target waveform out of X waveforms, the X is a positive integer greater than or equal to 2, a transmitting power of the first radio signal is a first power, the target waveform is used to determine an upper bound of the first power, the first power is equal to the smaller one of a second power and the upper bound of the first power, the second power is related to a pathloss of the UE, the second power is also related to an amount of subcarriers occupied by the first radio signal, a subcarrier spacing of a subcarrier occupied by the first radio signal, and a modulation scheme of the first modulation symbol sequence; the X is equal to 2, the X waveforms are CP-OFDM and DFT-s-OFDM respectively; the first signaling is a physical layer signaling, the first signaling comprises scheduling information of the first radio signal, the scheduling information comprises at least one of time-frequency resources occupied, MCS, RV, NDI, or HARQ Process Identity Number, the first signaling explicitly indicates the target waveform; positions of subcarriers occupied by the first radio signal in frequency domain is within the edge Y MHz of a system bandwidth of an access system the first radio signal pertaining to; or the positions of subcarriers occupied by the first radio signal in frequency domain is outside the edge Y MHz of the system bandwidth of the access system the first radio signal pertaining to; Y is larger than 0.

2. The method according to claim 1 , wherein the upper bound of the first power is set by the user equipment (UE) itself within a range of the upper bound of the first power.

3. The method according to claim 1 , comprising:

receiving a second signaling;

wherein the second signaling is used to determine a first parameter, the second signaling is RRC; the first parameter is used to determine a lower bound of the upper bound of the first power; the first parameter is related to the target waveform; the first parameter is MPR (maximum power reduction), or the first parameter is A-MPR (additional maximum power reduction).

4. The method according to claim 3 , wherein the first parameter is further related to at least one of a power class of the user equipment; a frequency of a carrier where the first radio signal is carried; a type of a receiver of the first radio signal; an amount of subcarriers occupied by the first radio signal; a subcarrier spacing of a subcarrier occupied by the first radio signal; a position of subcarriers occupied by the first radio signal in frequency domain or a modulation scheme of the first modulation symbol sequence.

5. The method according to claim 3 , comprising:

receiving a fourth signaling;

wherein the lower bound of the upper bound of the first power is determined by the following formula:

P CMAX_L,c =MIN{ P A,c ,P PowerClass −MAX( X -MPR c ,P -MPR c )}

herein, carrier C denotes a serving carrier of the first radio signal;

P CMAX_L,c denotes the lower bound of the upper bound of the first power, the unit is dBm;

P A,c denotes a third parameter, the third parameter is configured by network, the unit is dBm, the fourth signaling is used to determine the third parameter;

P PowerClass denotes a transmitting power corresponding to a power class of the UE, the unit is dBm;

X-MPR c denotes the first parameter, the unit is dB;

P-MPR c denotes P-MPR value, the unit is dB.

6. The method according to claim 1 , comprising:

receiving a third signaling;

wherein the third signaling is used to determine at least one of an amount of subcarriers occupied by the first radio signal; a subcarrier spacing of a subcarrier occupied by the first radio signal; a position of subcarriers occupied by the first radio signal in frequency domain or a modulation scheme of the first modulation symbol sequence.

7. A method in a Base Station for supporting power adjustment, comprising:

transmitting a first signaling; and

receiving a first radio signal;

wherein a first modulation symbol sequence is used to generate the first radio signal; the first modulation symbol sequence employs a target waveform; a first bit block is used to generate the first modulation symbol sequence; the first signaling is used to determine the target waveform out of X waveforms; the X is a positive integer greater than or equal to 2; a transmitting power of the first radio signal is a first power; the target waveform is used to determine an upper bound of the first power, the first power is equal to the smaller one of a second power and the upper bound of the first power, the second power is related to a pathloss of a UE, the second power is also related to an amount of subcarriers occupied by the first radio signal, a subcarrier spacing of a subcarrier occupied by the first radio signal, and a modulation scheme of the first modulation symbol sequence; the X is equal to 2, the X waveforms are CP-OFDM and DFT-s-OFDM respectively; the first signaling is a physical layer signaling, the first signaling comprises scheduling information of the first radio signal, the scheduling information comprises at least one of time-frequency resources occupied, MCS, RV, NDI, or HARQ Process Identity Number, the first signaling explicitly indicates the target waveform; positions of subcarriers occupied by the first radio signal in frequency domain is within the edge Y MHz of a system bandwidth of an access system the first radio signal pertaining to; or the positions of subcarriers occupied by the first radio signal in frequency domain is outside the edge Y MHz of the system bandwidth of the access system the first radio signal pertaining to; Y is larger than 0.

8. The method according to claim 7 , comprising:

transmitting a second signaling;

wherein the second signaling is used to determine a first parameter, the second signaling is RRC; the first parameter is used to determine a lower bound of the upper bound of the first power; the first parameter is related to the target waveform; the first parameter is MPR (maximum power reduction), or the first parameter is A-MPR (additional maximum power reduction).

9. The method according to claim 8 , wherein the first parameter is further related to at least one of a power class of a transmitter of the first radio signal, a frequency of a carrier where the first radio signal is carried, a type of a receiver of the first radio signal, an amount of subcarriers occupied by the first radio signal, a subcarrier spacing of a subcarrier occupied by the first radio signal, a position of subcarriers occupied by the first radio signal in frequency domain or a modulation scheme of the first modulation symbol sequence.

10. The method according to claim 8 , comprising:

transmitting a fourth signaling;

wherein the lower bound of the upper bound of the first power is determined by the following formula:

P CMAX_L,c =MIN{ P A,c ,P PowerClass −MAX( X -MPR c ,P -MPR c )}

herein, carrier C denotes a serving carrier of the first radio signal;

P CMAX_L,c denotes the lower bound of the upper bound of the first power, the unit is dBm;

P A,c denotes a third parameter, the third parameter is configured by network, the unit is dBm, the fourth signaling is used to determine the third parameter;

P PowerClass denotes a transmitting power corresponding to a power class of a UE, the unit is dBm;

X-MPR c denotes the first parameter, the unit is dB;

P-MPR c denotes P-MPR value, the unit is dB.

11. The method according to claim 7 , comprising:

transmitting a third signaling;

wherein the third signaling is used to determine at least one of an amount of subcarriers occupied by the first radio signal, a subcarrier spacing of a subcarrier occupied by the first radio signal, a position of subcarriers occupied by the first radio signal in frequency domain or a modulation scheme of the first modulation symbol sequence.

12. A user equipment supporting power adjustment, comprising:

a first receiver, receiving a first signaling; and

a second transmitter, transmitting a first radio signal;

wherein a first modulation symbol sequence is used to generate the first radio signal; the first modulation symbol sequence employs a target waveform; a first bit block is used to generate the first modulation symbol sequence; the first signaling is used to determine the target waveform out of X waveforms; the X is a positive integer greater than or equal to 2; a transmitting power of the first radio signal is a first power; the target waveform is used to determine an upper bound of the first power, the first power is equal to the smaller one of a second power and the upper bound of the first power, the second power is related to a pathloss of the UE, the second power is also related to an amount of subcarriers occupied by the first radio signal, a subcarrier spacing of a subcarrier occupied by the first radio signal, and a modulation scheme of the first modulation symbol sequence; the X is equal to 2, the X waveforms are CP-OFDM and DFT-s-OFDM respectively; the first signaling is a physical layer signaling, the first signaling comprises scheduling information of the first radio signal, the scheduling information comprises at least one of time-frequency resources occupied, MCS, RV, NDI, or HARQ Process Identity Number, the first signaling explicitly indicates the target waveform; positions of subcarriers occupied by the first radio signal in frequency domain is within the edge Y MHz of a system bandwidth of an access system the first radio signal pertaining to; or the positions of subcarriers occupied by the first radio signal in frequency domain is outside the edge Y MHz of the system bandwidth of the access system the first radio signal pertaining to; Y is larger than 0.

13. The user equipment according to claim 12 , wherein the upper bound of the first power is set by the user equipment itself within a range of the upper bound of the first power.

14. The user equipment according to claim 12 , wherein the first receiver also receives a second signaling; the second signaling is used to determine a first parameter, the second signaling is RRC; the first parameter is used to determine a lower bound of the upper bound of the first power; the first parameter is related to the target waveform; the first parameter is MPR (maximum power reduction), or the first parameter is A-MPR (additional maximum power reduction).

15. The user equipment according to claim 14 , wherein the first parameter is further related to at least one of a power class of the user equipment, a frequency of a carrier where the first radio signal is carried, a type of a receiver of the first radio signal, an amount of subcarriers occupied by the first radio signal, a subcarrier spacing of a subcarrier occupied by the first radio signal, a position of subcarriers occupied by the first radio signal in frequency domain or a modulation scheme of the first modulation symbol sequence.

16. The user equipment according to claim 14 , the first receiver receives a fourth signaling; wherein the lower bound of the upper bound of the first power is determined by the following formula:

P CMAX_L,c =MIN{ P A,c ,P PowerClass −MAX( X -MPR c ,P -MPR c )}

herein, carrier C denotes a serving carrier of the first radio signal;

P CMAX_L,c denotes the lower bound of the upper bound of the first power, the unit is dBm;

P A,c denotes a third parameter, the third parameter is configured by network, the unit is dBm, the fourth signaling is used to determine the third parameter;

P PowerClass denotes a transmitting power corresponding to a power class of the UE, the unit is dBm;

X-MPR c denotes the first parameter, the unit is dB;

P-MPR c denotes P-MPR value, the unit is dB.

17. The user equipment according to claim 12 , wherein the first receiver also receives a third signaling; wherein the third signaling is used to determine at least one of an amount of subcarriers occupied by the first radio signal, a subcarrier spacing of a subcarrier occupied by the first radio signal, a position of subcarriers occupied by the first radio signal in frequency domain or a modulation scheme of the first modulation symbol sequence.