IP Library Granted Patent US 12,052,667
Granted Patent B2
US 12,052,667 · App. 17/887,517 · Granted Jul 30, 2024

Method and device for power adjustment in UE and base station

Inventor: Xiaobo Zhang (Shanghai, CN)
Assignee: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
H04W52/14H04B7/0426H04W52/22H04W52/225
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Quick Facts
Patent No.
US 12,052,667
App. No.
17/887,517
Granted
Jul 30, 2024
Kind
B2
Abstract

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.

Claims (40)

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.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 16, 2025
From: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
To: APOGEE NETWORKS, LLC
Reel/Frame 070878/0649 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 16, 2023
From: ZHANG, XIAOBO
To: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
Reel/Frame 062714/0224 →
Priority Claims (1)
CN 201611106305.6 · Dec 5, 2016 · national
Continuity (4)
Continuation 16898459 · Jun 11, 2020
Continuation 16432366 · Jun 5, 2019
Continuation PCTCN2017105188 · Oct 1, 2017
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