Method and device for power adjustment in UE and base station
View Patent ↗The present disclosure provides a method and a device in a user equipment and a base station used for power adjustment. The UE first receives K downlink signaling(s) and transmits a first radio signal. Any of the K downlink signaling(s) comprises a first field and a second field, the second field of any of the K downlink signaling(s) is used to determine a power offset. A transmitting power of the first radio signal is a first power. A value of each first field of K1 downlink signaling(s) among the K downlink signaling(s) is equal to a first index. The first power is linearly correlated with a sum of K1 power offset(s), which is(are) indicated by each second field of the K1 downlink signaling(s) respectively. The present disclosure can support multiple closed-loop power control processes for one UE so as to improve both efficiency and performance of uplink power control.
1. A method in a User Equipment (UE) for power adjustment, comprising:
receiving K downlink signaling(s); and
transmitting a first radio signal;
wherein any downlink signaling of the K downlink signaling(s) comprises a first field and a second field; the second field is a TPC, the second field of any downlink signaling of the K downlink signaling(s) is used to determine a power offset; a transmitting power of the first radio signal is a first power; K1 downlink signaling(s) exist(s) among the K downlink signaling(s); a value of the first field of each of the K1 downlink signaling(s) is equal to a first index; the first power is a smallest one of a second power and a reference power, and the second power is respectively linearly correlated with a first component, a second component, a third component, and a fifth component; the first component is related to a bandwidth occupied by the first radio signal; the second component is configured by a higher layer signaling; the third component is related to a channel quality between the User Equipment and a receiver of the first radio signal; the fifth component and a sum of the K1 power offset(s) is linearly related, and the linear coefficient between the fifth component and the sum of the K1 power offset(s) is 1; linear coefficients between the second power and the first component, the second component and the fifth component are 1 respectively, and a linear coefficient between the second power and the third component is a first coefficient, the first coefficient is a non-negative number less than or equal to one; the K1 power offset(s) is(are) respectively indicated by the second field(s) of the K1 downlink signaling(s); the K downlink signaling(s) schedules(schedule) a same carrier, the K downlink signaling(s) is(are) all transmitted on PDCCH; the first power is not related to the second field of a given downlink signaling, the given downlink signaling is any downlink signaling whose first field value is not equal to the first index among the K downlink signaling(s), the second power is not related to the second field of the given downlink signaling; the K is a positive integer, the K1 is a positive integer not greater than the K; the first index is a non-negative integer; the first radio signal comprises a first reference signal, the first index is used to determine an RS sequence corresponding to the first reference signal, the first reference signal is SRS; the unit of the first power is dBm.
2. The method according to claim 1 , wherein the first coefficient is configured by higher layer signaling.
3. The method according to claim 1 , wherein the third component is equal to a transmission power of a given reference signal minus a RSRP of the given reference signal;
or, the third component is associated with a target antenna virtualization vector, and the first index is used to determine the target antenna virtualization vector.
4. The method according to claim 1 , wherein the third component is a path loss value estimated in dB by the UE in a serving cell with index c, the first radio signal being transmitted on the serving cell with index c.
5. The method according to claim 1 , wherein the reference power is a highest transmit power threshold the UE configured in the i-th subframe of the serving cell with index c, and the first radio signal is transmitted on the serving cell with index c;
or, time domain resources occupied by any two of the K downlink signalings are orthogonal.
6. A method in a base station for power adjustment, comprising:
transmitting K downlink signaling(s); and
receiving a first radio signal;
wherein any downlink signaling of the K downlink signaling(s) comprises a first field and a second field; the second field is a TPC, the second field of any downlink signaling of the K downlink signaling(s) is used to determine a power offset; a transmitting power of the first radio signal is a first power; K1 downlink signaling(s) exist(s) among the K downlink signaling(s); a value of the first field of each of the K1 downlink signaling(s) is equal to a first index; the first power is a smallest one of a second power and a reference power, and the second power is respectively linearly correlated with a first component, a second component, a third component, and a fifth component; the first component is related to a bandwidth occupied by the first radio signal; the second component is configured by a higher layer signaling; the third component is related to a channel quality between a transmitter of the first radio signal and the base station; the fifth component and a sum of the K1 power offset(s) is linearly related, and the linear coefficient between the fifth component and the sum of the K1 power offset(s) is 1; linear coefficients between the second power and the first component, the second component and the fifth component are 1 respectively, and a linear coefficient between the second power and the third component is a first coefficient, the first coefficient is a non-negative number less than or equal to one; the K1 power offset(s) is(are) respectively indicated by the second field(s) of the K1 downlink signaling(s); the K downlink signaling(s) schedules(schedule) a same carrier, the K downlink signaling(s) is(are) all transmitted on PDCCH; the first power is not related to the second field of a given downlink signaling, the given downlink signaling is any downlink signaling whose first field value is not equal to the first index among the K downlink signaling(s), the second power is not related to the second field of the given downlink signaling; the K is a positive integer, the K1 is a positive integer not greater than the K; the first index is a non-negative integer; the first radio signal comprises a first reference signal, the first index is used to determine an RS sequence corresponding to the first reference signal, the first reference signal is SRS; the unit of the first power is dBm.
7. The method according to claim 6 , wherein the first coefficient is configured by higher layer signaling.
8. The method according to claim 6 , wherein the third component is equal to a transmission power of a given reference signal minus a RSRP of the given reference signal;
or, the third component is associated with a target antenna virtualization vector, and the first index is used to determine the target antenna virtualization vector.
9. The method according to claim 6 , wherein the third component is a path loss value estimated in dB by the UE in a serving cell with index c, the first radio signal being transmitted on the serving cell with index c.
10. The method according to claim 6 , wherein the reference power is a highest transmit power threshold the UE configured in the i-th subframe of the serving cell with index c, and the first radio signal is transmitted on the serving cell with index c;
or, time domain resources occupied by any two of the K downlink signalings are orthogonal.
11. A user equipment (UE) for power adjustment, comprising:
a first processor, receiving K downlink signaling(s); and
a first transmitter, transmitting a first radio signal;
wherein any downlink signaling of the K downlink signaling(s) comprises a first field and a second field; the second field is a TPC, the second field of any downlink signaling of the K downlink signaling(s) is used to determine a power offset; a transmitting power of the first radio signal is a first power; K1 downlink signaling(s) exist(s) among the K downlink signaling(s); a value of the first field of each of the K1 downlink signaling(s) is equal to a first index; the first power is a smallest one of a second power and a reference power, and the second power is respectively linearly correlated with a first component, a second component, a third component, and a fifth component; the first component is related to a bandwidth occupied by the first radio signal; the second component is configured by a higher layer signaling; the third component is related to a channel quality between the User Equipment and a receiver of the first radio signal; the fifth component and a sum of the K1 power offset(s) is linearly related, and the linear coefficient between the fifth component and the sum of the K1 power offset(s) is 1; linear coefficients between the second power and the first component, the second component and the fifth component are 1 respectively, and a linear coefficient between the second power and the third component is a first coefficient, the first coefficient is a non-negative number less than or equal to one; the K1 power offset(s) is(are) respectively indicated by the second field(s) of the K1 downlink signaling(s); the K downlink signaling(s) schedules(schedule) a same carrier, the K downlink signaling(s) is(are) all transmitted on PDCCH; the first power is not related to the second field of a given downlink signaling, the given downlink signaling is any downlink signaling whose first field value is not equal to the first index among the K downlink signaling(s), the second power is not related to the second field of the given downlink signaling; the K is a positive integer, the K1 is a positive integer not greater than the K; the first index is a non-negative integer; the first radio signal comprises a first reference signal, the first index is used to determine an RS sequence corresponding to the first reference signal, the first reference signal is SRS; the unit of the first power is dBm.
12. The UE according to claim 11 , wherein the first coefficient is configured by higher layer signaling.
13. The UE according to claim 11 , wherein the third component is equal to a transmission power of a given reference signal minus a RSRP of the given reference signal;
or, the third component is associated with a target antenna virtualization vector, and the first index is used to determine the target antenna virtualization vector.
14. The UE according to claim 11 , wherein the third component is a path loss value estimated in dB by the UE in a serving cell with index c, the first radio signal being transmitted on the serving cell with index c.
15. The method according to claim 11 , wherein the reference power is a highest transmit power threshold the UE configured in the i-th subframe of the serving cell with index c, and the first radio signal is transmitted on the serving cell with index c;
or, time domain resources occupied by any two of the K downlink signalings are orthogonal.
16. A base station equipment for power adjustment, comprising:
a second processor, transmitting K downlink signaling(s); and
a first receiver, receiving a first radio signal;
wherein any downlink signaling of the K downlink signaling(s) comprises a first field and a second field; the second field is a TPC, the second field of any downlink signaling of the K downlink signaling(s) is used to determine a power offset; a transmitting power of the first radio signal is a first power; K1 downlink signaling(s) exist(s) among the K downlink signaling(s); a value of the first field of each of the K1 downlink signaling(s) is equal to a first index; the first power is a smallest one of a second power and a reference power, and the second power is respectively linearly correlated with a first component, a second component, a third component, and a fifth component; the first component is related to a bandwidth occupied by the first radio signal; the second component is configured by a higher layer signaling; the third component is related to a channel quality between a transmitter of the first radio signal and the base station; the fifth component and a sum of the K1 power offset(s) is linearly related, and the linear coefficient between the fifth component and the sum of the K1 power offset(s) is 1; linear coefficients between the second power and the first component, the second component and the fifth component are 1 respectively, and a linear coefficient between the second power and the third component is a first coefficient, the first coefficient is a non-negative number less than or equal to one; the K1 power offset(s) is(are) respectively indicated by the second field(s) of the K1 downlink signaling(s); the K downlink signaling(s) schedules(schedule) a same carrier, the K downlink signaling(s) is(are) all transmitted on PDCCH; the first power is not related to the second field of a given downlink signaling, the given downlink signaling is any downlink signaling whose first field value is not equal to the first index among the K downlink signaling(s), the second power is not related to the second field of the given downlink signaling; the K is a positive integer, the K1 is a positive integer not greater than the K; the first index is a non-negative integer; the first radio signal comprises a first reference signal, the first index is used to determine an RS sequence corresponding to the first reference signal, the first reference signal is SRS; the unit of the first power is dBm.
17. The base station according to claim 16 , wherein the first coefficient is configured by higher layer signaling.
18. The base station according to claim 16 , wherein the third component is equal to a transmission power of a given reference signal minus a RSRP of the given reference signal;
or, the third component is associated with a target antenna virtualization vector, and the first index is used to determine the target antenna virtualization vector.
19. The base station according to claim 16 , wherein the third component is a path loss value estimated in dB by the UE in a serving cell with index c, the first radio signal being transmitted on the serving cell with index c.
20. The method according to claim 16 , wherein the reference power is a highest transmit power threshold the UE configured in the i-th subframe of the serving cell with index c, and the first radio signal is transmitted on the serving cell with index c;
or, time domain resources occupied by any two of the K downlink signalings are orthogonal.