CN115915369A

CN115915369A - PUCCH power control method, terminal, device and storage medium

Info

Publication number: CN115915369A
Application number: CN202111166010.9A
Authority: CN
Inventors: 李晓皎
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2023-04-04
Also published as: WO2023050916A1

Abstract

The embodiment of the application provides a PUCCH power control method, a terminal, a device and a storage medium, wherein the method comprises the following steps: determining the maximum sending power at a target transmission moment according to the RB number of first resource blocks configured at the target transmission moment and the grade of a terminal UE; and determining the first transmission power of the target transmission moment according to the maximum transmission power of the target transmission moment. Therefore, the maximum transmission power depends on the number of RBs and the grade of the UE, and the accuracy of PUCCH power control is improved.

Description

PUCCH power control method, terminal, device and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a PUCCH power control method, a terminal, an apparatus, and a storage medium.

Background

Uplink power control in a wireless system is very important, and by the uplink power control, user Equipment (UE) in a cell can ensure the quality of data transmitted in an uplink, reduce interference to other users in the system as much as possible, and prolong the service time of a UE battery. Currently, physical Uplink Control Channel (PUCCH) power Control may be related to the maximum transmit power of a user. However, the maximum transmission power of the user depends only on the capability of the user, which reduces the accuracy of PUCCH power control.

Disclosure of Invention

Embodiments of the present application provide a PUCCH power control method, a terminal, a device, and a storage medium, so as to solve the problem in the prior art that the maximum transmit power of a user only depends on the capability of the user, and reduce the accuracy of PUCCH power control, implement that the maximum transmit power depends on the number of RBs and the UE level, and improve the accuracy of PUCCH power control.

In a first aspect, an embodiment of the present application provides a PUCCH power control method,

determining the maximum sending power at a target transmission moment according to the RB number of first resource blocks configured at the target transmission moment and the grade of a terminal UE;

and determining the first transmission power of the target transmission moment according to the maximum transmission power of the target transmission moment.

Optionally, according to the PUCCH power control method according to an embodiment of the present application, determining the maximum transmission power at the target transmission time according to the first RB number configured at the target transmission time and the UE level includes:

determining a first maximum transmit power limit value according to the UE class;

acquiring a second maximum transmission power limit value corresponding to the first RB number;

and determining the maximum transmission power of the target transmission moment according to the first maximum transmission power limit value and the second maximum transmission power limit value.

Optionally, according to the PUCCH power control method in an embodiment of the present application, the maximum transmit power at the target transmission time is a minimum value between the first maximum transmit power limit value and the second maximum transmit power limit value.

Optionally, according to the PUCCH power control method according to an embodiment of the present application, the obtaining a second maximum transmit power limit value corresponding to the first RB number includes:

and receiving the second maximum transmission power limit value transmitted by the network equipment.

receiving a third maximum transmission power limit value sent by network equipment, wherein the third maximum transmission power limit value is the maximum transmission power limit value of a single Physical Resource Block (PRB);

and determining the second maximum transmission power limit value according to the third maximum transmission power limit value and the first RB number.

receiving a fourth maximum transmission power limit value sent by the network equipment, wherein the fourth maximum transmission power limit value is the maximum transmission power limit value under a unit bandwidth;

and determining the second maximum transmission power limit value according to the fourth maximum transmission power limit value and the first RB number.

Optionally, according to the PUCCH power control method according to an embodiment of the present application, the determining the first transmit power at the target transmission time according to the maximum transmit power at the target transmission time includes:

determining a first PUCCH closed-loop power control factor at the target transmission time according to the first RB number and a second RB number configured at the last transmission time of the target transmission time;

and determining the first transmitting power of the target transmission moment according to the maximum transmitting power of the target transmission moment and the first PUCCH closed-loop power control factor.

Optionally, according to the PUCCH power control method in an embodiment of the present application, in a case that the second number of RBs is equal to the first number of RBs, the determining a first PUCCH closed-loop power control factor at the target transmission time includes:

if the second sending power at the last transmission time of the target transmission time has reached the maximum sending power at the last transmission time of the target transmission time and the accumulated value of the transmission power control TPC corresponding to the target transmission time is greater than or equal to 0, determining that the first PUCCH closed-loop power control factor is the same as the second PUCCH closed-loop power control factor at the last transmission time of the target transmission time; or,

if the second sending power reaches the minimum sending power at the last transmission time of the target transmission time and the TPC accumulated value is less than or equal to 0, determining that the first PUCCH closed-loop power control factor is the same as the second PUCCH closed-loop power control factor; or,

and if the target power value of the target transmission moment is adjusted, determining that the closed-loop power control factor of the first PUCCH is 0.

Optionally, according to the PUCCH power control method in an embodiment of the present application, in a case that the second RB number is smaller than the first RB number, the determining a first PUCCH closed-loop power control factor at the target transmission time includes:

determining that the first PUCCH closed-loop power control factor is 0;

or,

if a first set condition is met, determining that the first PUCCH closed-loop power control factor is a first difference value, wherein the first difference value is a difference value between a second PUCCH closed-loop power control factor and a second difference value at the last transmission time of the target transmission time, and the second difference value is a difference value between the transmission power calculated according to the second RB number and the transmission power calculated according to the first RB number when the second RB number is smaller than the first RB number; if the first set condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the second PUCCH closed-loop power control factor and a TPC accumulated value corresponding to the target transmission moment; wherein the first setting condition includes that the second transmission power at the last transmission time of the target transmission time has reached the maximum transmission power at the last transmission time of the target transmission time;

or,

if a first set condition is met, determining that the first PUCCH closed-loop power control factor is equal to the second PUCCH closed-loop power control factor; if the first setting condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the second PUCCH closed-loop power control factor and the TPC accumulated value; wherein the first setting condition includes that the second transmission power at the last transmission time of the target transmission time has reached the maximum transmission power at the last transmission time of the target transmission time;

or,

determining the first PUCCH closed-loop power control factor as the first difference value;

or,

if a first set condition is met, determining that the first PUCCH closed-loop power control factor is the first difference value; if the first set condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the first difference value and the TPC accumulated value; wherein the first setting condition includes that the second transmission power at the last transmission time of the target transmission time has reached the maximum transmission power at the last transmission time of the target transmission time.

Optionally, according to the PUCCH power control method in an embodiment of the present application, in a case that the second number of RBs is greater than the first number of RBs, the determining a first PUCCH closed-loop power control factor at the target transmission time includes:

determining that the first PUCCH closed-loop power control factor is 0;

or,

if a second set condition is met, determining that the first PUCCH closed-loop power control factor is a third difference value, wherein the third difference value is a difference value between a second PUCCH closed-loop power control factor and a fourth difference value at the last transmission time of the target transmission time, and the fourth difference value is a difference value between the transmission power calculated according to the second RB number and the transmission power calculated according to the first RB number when the second RB number is greater than the first RB number; if the second set condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the second PUCCH closed-loop power control factor and a TPC accumulated value corresponding to the target transmission moment; wherein the second setting condition includes that the second transmission power at the last transmission time of the target transmission time has reached the minimum transmission power at the last transmission time of the target transmission time;

or,

determining that the first PUCCH closed-loop power control factor is the third difference value;

or,

if a second set condition is met, the first PUCCH closed-loop power control factor is the third difference value; if the second set condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the third difference value and the TPC accumulated value; wherein the second setting condition includes that the second transmission power at the last transmission time of the target transmission time has reached the minimum transmission power at the last transmission time of the target transmission time.

Optionally, according to the PUCCH power control method in an embodiment of the present application, in a case that the second number of RBs is not equal to the first number of RBs, the determining a first PUCCH closed-loop power control factor at the target transmission time includes:

determining that the first PUCCH closed-loop power control factor is 0;

or,

if a third setting condition is met, determining that the first PUCCH closed-loop power control factor is a fifth difference value, wherein the fifth difference value is a difference value between a second PUCCH closed-loop power control factor and a sixth difference value at a last transmission time of the target transmission time, and the sixth difference value is a difference value between transmission power calculated according to the second RB number and transmission power calculated according to the first RB number when the second RB number is different from the first RB number; if the third setting condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the second PUCCH closed-loop power control factor and a TPC accumulated value corresponding to the target transmission moment; wherein the third setting condition includes that the second transmission power at the last transmission time of the target transmission time has reached the maximum transmission power or the minimum transmission power at the last transmission time of the target transmission time;

or the like, or a combination thereof,

if the fourth set condition is met, determining that the first PUCCH closed-loop power control factor is the same as the second PUCCH closed-loop power control factor; if the fourth setting condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the second PUCCH closed-loop power control factor and the TPC accumulated value; wherein the fourth setting condition includes that the second transmission power has reached a maximum transmission power at a last transmission time of the target transmission time;

or the like, or a combination thereof,

if a fifth set condition is met, determining that the first PUCCH closed-loop power control factor is the fifth difference value; if the fifth setting condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the second PUCCH closed-loop power control factor and the TPC accumulated value; wherein the fifth setting condition includes that the second transmission power has reached a minimum transmission power of a last transmission time of the target transmission time;

or,

determining that the first PUCCH closed-loop power control factor is the fifth difference value;

or the like, or a combination thereof,

and determining the first PUCCH closed-loop power control factor as the sum of the fifth difference value and the TPC accumulated value.

Optionally, according to a PUCCH power control method according to an embodiment of the present application, the determining a first transmit power of the target transmission time according to the maximum transmit power of the target transmission time and the first PUCCH closed-loop power control factor includes:

determining a fifth maximum transmission power limiting value according to the first PUCCH closed-loop power control factor;

and determining the first transmission power of the target transmission moment according to the fifth maximum transmission power limit value and the maximum transmission power of the target transmission moment.

Optionally, according to the PUCCH power control method according to an embodiment of the present application, determining the first transmit power at the target transmission time according to the fifth maximum transmit power limit value and the maximum transmit power at the target transmission time includes:

carrying out PUCCH power control by using a first formula; wherein the first formula comprises:

wherein, P _PUCCH,b,f,c (i,q _u ,q _d L) represents the first transmission power of the terminal at the ith transmission moment on the carrier f in the main cell c; p1 represents a fifth maximum transmission power limit value at the ith transmission time; p' _CMAX,f,c (i) Represents the maximum transmission power at the ith transmission time; p is _{O_PUCCH,b,f,c} (q _u ) Representing a target power value, q _u Representing a target power value set index; μ represents a carrier spacing configuration;

the number of RBs configured at the ith transmission moment is represented; PL _b,f,c (q _d ) Represents the value of path loss, q _d Represents a reference signal, RS, resource index; delta _{F_PUCCH} (F) Representing a PUCCH format offset value; delta of _TF,b,f,c (i) A dynamic power adjustment factor representing an ith transmission time instant; g _b,f,c (i, l) a first PUCCH closed loop power control factor representing an ith transmission time instant; b denotes an index of the bandwidth part BWP; l denotes a PUCCH power control adjustment state index.

In a second aspect, an embodiment of the present application provides a terminal, including a memory, a transceiver, a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

and determining the first sending power of the target transmission moment according to the maximum sending power of the target transmission moment.

In a possible implementation manner, the determining, according to the first RB number configured at the target transmission time and the UE rank, the maximum transmission power at the target transmission time includes:

In a possible implementation, the maximum transmit power at the target transmission time is a minimum value between the first maximum transmit power limit value and the second maximum transmit power limit value.

In a possible implementation manner, the obtaining the second maximum transmission power limit value corresponding to the first number of RBs includes:

In a possible implementation manner, the obtaining a second maximum transmit power limit value corresponding to the first number of RBs includes:

In a possible implementation manner, the determining a first transmit power of the target transmission time according to the maximum transmit power of the target transmission time includes:

and determining the first transmission power of the target transmission moment according to the maximum transmission power of the target transmission moment and the first PUCCH closed-loop power control factor.

In a possible implementation manner, in a case that the second number of RBs is equal to the first number of RBs, the determining the first PUCCH closed-loop power control factor for the target transmission time includes:

if the second transmission power reaches the minimum transmission power at the last transmission time of the target transmission time and the accumulated TPC value is less than or equal to 0, determining that the first PUCCH closed-loop power control factor is the same as the second PUCCH closed-loop power control factor; or,

In a possible implementation manner, in a case that the second number of RBs is smaller than the first number of RBs, the determining the first PUCCH closed-loop power control factor for the target transmission time includes:

determining that the first PUCCH closed-loop power control factor is 0;

or,

or the like, or a combination thereof,

or,

In a possible implementation manner, in a case that the second number of RBs is greater than the first number of RBs, the determining the first PUCCH closed-loop power control factor for the target transmission time includes:

determining that the first PUCCH closed-loop power control factor is 0;

or the like, or a combination thereof,

or,

determining the first PUCCH closed-loop power control factor as the third difference value;

or,

In a possible implementation manner, in a case that the second number of RBs is not equal to the first number of RBs, the determining a first PUCCH closed-loop power control factor at the target transmission time includes:

determining that the first PUCCH closed-loop power control factor is 0;

or,

if a fourth set condition is met, determining that the first PUCCH closed-loop power control factor is the same as the second PUCCH closed-loop power control factor; if the fourth setting condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the second PUCCH closed-loop power control factor and the TPC accumulated value; wherein the fourth setting condition includes that the second transmission power has reached a maximum transmission power at a last transmission time of the target transmission time;

or,

In a possible implementation manner, the determining a first transmit power of the target transmission time according to the maximum transmit power of the target transmission time and the first PUCCH closed loop power control factor includes:

In a possible implementation manner, the determining the first transmit power at the target transmission time according to the fifth maximum transmit power limit value and the maximum transmit power at the target transmission time includes:

wherein, P _PUCCH,b,f,c (i,q _u ,q _d L) represents the first transmission power of the terminal at the ith transmission moment on the carrier f in the main cell c; p1 denotes the ith transmission timeFive maximum transmit power limit values; p' _CMAX,f,c (i) Represents the maximum transmission power at the ith transmission time; p _{O_PUCCH,b,f,c} (q _u ) Representing a target power value, q _u An index representing a set of target power values; μ represents a carrier spacing configuration;

the number of RBs configured at the ith transmission moment is represented; PL _b,f,c (q _d ) Represents the path loss value, q _d Represents a reference signal, RS, resource index; delta _{F_PUCCH} (F) Represents a PUCCH format offset value; delta of _TF,b,f,c (i) A dynamic power adjustment factor representing an ith transmission time instant; g _b,f,c (i, l) a first PUCCH closed loop power control factor representing an ith transmission time instant; b denotes an index of the bandwidth part BWP; l denotes a PUCCH power control adjustment state index.

In a third aspect, an embodiment of the present application provides a PUCCH power control apparatus, including:

a first determining unit, configured to determine, according to the number of first resource blocks RB configured at a target transmission time and a terminal UE level, a maximum transmit power at the target transmission time;

a second determining unit, configured to determine the first transmit power at the target transmission time according to the maximum transmit power at the target transmission time.

In one possible implementation manner, the first determining unit includes:

a first determining subunit, configured to determine a first maximum transmit power limitation value according to the UE class;

an obtaining subunit, configured to obtain a second maximum transmit power limit value corresponding to the first RB number;

a second determining subunit, configured to determine the maximum transmit power at the target transmission time according to the first maximum transmit power limit value and the second maximum transmit power limit value.

In a possible implementation manner, the obtaining subunit is specifically configured to:

In one possible implementation manner, the second determining unit includes:

a third determining subunit, configured to determine, according to the first RB number and a second RB number configured at a previous transmission time of the target transmission time, a first PUCCH closed-loop power control factor at the target transmission time;

a fourth determining subunit, configured to determine, according to the maximum transmit power at the target transmission time and the first PUCCH closed-loop power control factor, the first transmit power at the target transmission time.

In a possible implementation manner, when the second number of RBs is equal to the first number of RBs, the third determining subunit is specifically configured to:

In a possible implementation manner, in a case that the second RB number is smaller than the first RB number, the third determining subunit is specifically configured to:

determining that the first PUCCH closed-loop power control factor is 0;

or,

or the like, or a combination thereof,

if a first set condition is met, determining that the first PUCCH closed-loop power control factor is the same as the second PUCCH closed-loop power control factor; if the first setting condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the second PUCCH closed-loop power control factor and the TPC accumulated value; wherein the first setting condition includes that the second transmission power at the last transmission time of the target transmission time has reached the maximum transmission power at the last transmission time of the target transmission time;

or,

if a first set condition is met, the first PUCCH closed-loop power control factor is the first difference value; if the first setting condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the first difference value and the TPC accumulated value; wherein the first setting condition includes that the second transmission power at the last transmission time of the target transmission time has reached the maximum transmission power at the last transmission time of the target transmission time.

In a possible implementation manner, in a case that the second number of RBs is greater than the first number of RBs, the third determining subunit is specifically configured to:

determining that the first PUCCH closed-loop power control factor is 0;

or,

In a possible implementation manner, in a case that the second RB number is not equal to the first RB number, the third determining subunit is specifically configured to:

determining that the first PUCCH closed-loop power control factor is 0;

or the like, or a combination thereof,

if a third setting condition is met, determining that the first PUCCH closed-loop power control factor is a fifth difference value, wherein the fifth difference value is a difference value between a second PUCCH closed-loop power control factor and a sixth difference value at a last transmission moment of the target transmission moment, and the sixth difference value is a difference value between transmission power calculated according to the second RB number and transmission power calculated according to the first RB number when the second RB number is different from the first RB number; if the third setting condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the second PUCCH closed-loop power control factor and a TPC accumulated value corresponding to the target transmission moment; wherein the third setting condition includes that the second transmission power at the last transmission time of the target transmission time has reached the maximum transmission power or the minimum transmission power at the last transmission time of the target transmission time;

or,

In one possible implementation manner, the fourth determining subunit includes:

a first determining module, configured to determine a fifth maximum transmit power limit value according to the first PUCCH closed-loop power control factor;

a second determining module, configured to determine the first transmit power at the target transmission time according to the fifth maximum transmit power limit value and the maximum transmit power at the target transmission time.

In a possible implementation manner, the second determining module is specifically configured to:

wherein, P _PUCCH,b,f,c (i,q _u ,q _d L) represents the first transmission power of the terminal at the ith transmission moment on the carrier f in the main cell c; p1 represents a fifth maximum transmission power limit value at the ith transmission time; p' _CMAX,f,c (i) Represents the maximum transmission power at the ith transmission time; p _{O_PUCCH,b,f,c} (q _u ) Represents a target power value, q _u Representing a target power value set index; μ represents a carrier spacing configuration;

the number of RBs configured at the ith transmission moment is represented; PL _b,f,c (q _d ) Represents the path loss value, q _d Represents a reference signal, RS, resource index; delta _{F_PUCCH} (F) Represents a PUCCH format offset value; delta _TF,b,f,c (i) A dynamic power adjustment factor representing an ith transmission time instant; g _b,f,c (i, l) a first PUCCH closed loop power control factor representing an ith transmission time instant; b denotes an index of the bandwidth part BWP; l denotes a PUCCH power control adjustment state index.

In a fourth aspect, an embodiment of the present application provides a processor-readable storage medium, which stores a computer program, where the computer program is configured to enable the processor to execute the steps of the PUCCH power control method according to the first aspect.

In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored, where the computer program is configured to enable the computer to execute the steps of the PUCCH power control method according to the first aspect.

In a sixth aspect, an embodiment of the present application provides a chip system, where the chip system includes at least one processor, a memory, and an interface circuit, where the memory, the interface circuit, and the at least one processor are interconnected by a line, and the at least one memory stores instructions therein; the instructions, when executed by the processor, implement the steps of the PUCCH power control method of the first aspect described above.

In a seventh aspect, an embodiment of the present application provides a computer program product, where the computer program product includes instructions, when the computer program product runs on a computer, to make the computer execute the steps of the PUCCH power control method according to the first aspect.

According to the PUCCH power control method, the terminal, the device and the storage medium provided by the embodiment of the application, during PUCCH power control, the maximum transmission power can be determined at the target transmission time according to the first RB number configured at the target transmission time and the terminal UE level, and then the first transmission power at the target transmission time is determined according to the maximum transmission power at the target transmission time, so that the accuracy of PUCCH power control is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a flowchart illustrating a PUCCH power control method according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a PUCCH power control apparatus according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Detailed Description

In the embodiment of the present application, the term "and/or" describes an association relationship of associated objects, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Uplink power control in a wireless system is very important, and through the uplink power control, the UE in a cell can ensure the quality of uplink transmitted data, reduce interference to other users in the system as much as possible, and prolong the service time of a UE battery.

Wherein, the process of the UE performing PUCCH power control is shown in the following formula

Wherein, P _PUCCH,b,f,c (i,q _u ,q _d L) represents the transmission power of the terminal at the ith transmission moment on the carrier f in the main cell c; p is _CMAX,f,c (i) The maximum transmission power of the ith transmission moment is represented, and the maximum transmission power is determined by the UE grade reported by a user; p _{O_PUCCH,b,f,c} (q _u ) Representing a target power value, q _u Representing a target power value set index; μ represents a carrier spacing configuration;

the number of RBs configured at the ith transmission moment is represented; PL _b,f,c (q _d ) Represents the value of path loss, q _d Represents a reference signal, RS, resource index; delta _{F_PUCCH} (F) Represents a PUCCH format offset value; delta _TF,b,f,c (i) A dynamic power adjustment factor representing an ith transmission time instant; g _b,f,c (i, l) a first PUCCH closed loop power control factor representing an ith transmission time instant; b denotes an index of the bandwidth part BWP; l denotes a PUCCH power control adjustment state index.

For g _b，f，c (i, l) which is an accumulated value, the accumulated value being represented by the following formula:

wherein, g _b,f,c (i-i ₀ L) shows the i-i ₀ PUCCH closed loop power control factor, delta, for each transmission instant _PUCCH,b,f,c The Information is acquired by receiving Information in a Transmission Power Control (TPC) indication field in Downlink Control Information (DCI). Wherein, the TPC command field of DCI format is from delta _PUCCH,b,f,c The mapping relationship of (a) is shown in the following table 1:

TABLE 1

TPC command field	δ _PUCCH,b,f,c
		0	-1dB
1	0dB
		2	1dB
3	3dB

Is a set C _i Accumulated value of TPC command words in, C (C) _i ) Is transmitted from PUCCH at time i-i ₀ Front K of _PUCCH (i-i ₀ ) First K of 1 symbol to PUCCH transmission time i _PUCCH (i) Between symbols, wherein i ₀ Greater than 0 is satisfied with i-i ₀ Before time K _PUCCH (i-i ₀ ) The position of each symbol is earlier than K before i moment _PUCCH (i) The smallest integer number of symbol positions.

When the UE is in i-i ₀ The transmission moment has reached maximum power, an

Then g is _b,f,c (i,l)＝g _b,f,c (i-i ₀ ,l)。

When the UE is in i-i ₀ The transmission moment has reached a minimum power and

then g is _b,f,c (i,l)＝g _b,f,c (i-i ₀ ,l)。

If the Radio Resource Control (RRC) layer at the current time adjusts the target power value P of the user _{O_PUCCH,b,f,c} (q _u ) Then g is obtained _b,f,c (i,l)＝0，k＝0,1,...,i。

However, since PUCCH power control is related to the maximum transmit power of a user, the maximum transmit power of a user depends only on the capability of the user (i.e., the UE class reported by the user). However, for high frequency, since the transmit power limit is variable when the number of Resource Blocks (RBs) is variable, the maximum transmit power for different numbers of RBs is also variable, and if the maximum transmit power for the current RB configuration is determined only by the UE class reported by the user, the transmit power per RB may be higher than the power limit for a single RB for high frequency.

Since the number of scheduled RBs of a user can be changed by higher layer signaling in high frequency, the closed loop power control factor in the above PUCCH power control may change the number of RBs scheduled by the user at that time by higher layer signaling during accumulation calculation. When power calculation is performed, the influence of RB change on transmission power needs to be considered, so as to avoid that the calculated transmission power does not meet requirements or power jump occurs.

Therefore, the embodiment of the present application provides a PUCCH power control method, a terminal, a device, and a storage medium, which may determine the maximum transmit power at a target transmission time according to the number of first RBs configured at the target transmission time and a terminal UE level, and determine the first transmit power at the target transmission time according to the maximum transmit power at the target transmission time, so as to improve accuracy of PUCCH power control.

The method and the device are based on the same application concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not described again.

The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, the applicable system may be a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, a long term evolution (long term evolution, LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, an LTE-a (long term evolution) system, a universal mobile system (universal mobile telecommunications system, UMTS), a universal internet Access (WiMAX) system, a New Radio Network (NR) system, etc. These various systems include terminal devices and network devices. The System may further include a core network portion, such as an Evolved Packet System (EPS), a 5G System (5 GS), and the like.

The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells for providing services to a terminal. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to exchange received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or a Code Division Multiple Access (CDMA), a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB) or an e-NodeB) in a Long Term Evolution (LTE) System, a 5G Base Station (gNB) in a 5G network architecture (next generation System), a Home evolved Node B (HeNB), a relay Node (relay Node), a Home Base Station (femto), a pico Base Station (pico), and the like, which are not limited in the embodiments of the present application. In some network configurations, a network device may include Centralized Unit (CU) nodes and Distributed Unit (DU) nodes, which may also be geographically separated.

The terminal device referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or another processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be called a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal device, e.g., a portable, pocket, hand-held, computer-included or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN), and may exchange language and/or data with the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, session Initiation Protocol (SIP) phones, wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment of the present application.

Fig. 1 is a schematic flowchart of a PUCCH power control method provided in an embodiment of the present application, where the PUCCH power control method may be applied to a terminal. As shown in fig. 1, the PUCCH power control method may include the steps of:

step 101, determining the maximum transmission power at the target transmission time according to the first RB number configured at the target transmission time and the UE level.

Step 102, determining a first transmission power of a target transmission moment according to the maximum transmission power of the target transmission moment.

Specifically, the UE level may refer to a UE level reported by a user, that is, a capability of the user, and the first RB number may be a transmission RB number configured by the current UE, that is, an RB number configured by the network device through a high-layer signaling, so that when the maximum transmission power is determined, the UE level is not only related to the user capability, but also related to the RB number configured by the high-layer signaling.

The high frequency may refer to that the number of PRBs is a set of variable continuous integers, and the PRBs are configured to different UEs by a high layer signaling, where the maximum value of a PRB corresponds to the maximum transmission power. When the high-level signaling configuration is not the PRB maximum value, the maximum transmission power of the UE does not reach the maximum transmission power corresponding to the UE grade at the moment, and the maximum transmission power under the PRB corresponds to the maximum transmission power, so when the maximum transmission power is determined, the maximum transmission power is not only related to the user capability, but also related to the number of RBs configured by the high-level signaling.

As can be seen from the above embodiments, during PUCCH power control, the maximum transmit power may be determined at the target transmission time according to the first RB number configured at the target transmission time and the terminal UE level, and then the first transmit power at the target transmission time is determined according to the maximum transmit power at the target transmission time, thereby improving the accuracy of PUCCH power control.

Optionally, the determining the maximum transmission power at the target transmission time according to the first RB number configured at the target transmission time and the UE rank includes:

Specifically, the first maximum transmit power limit value is determined by the UE class reported by the user; the second maximum transmission power limit value is the maximum transmission power limit under the current configuration RB and is determined by the number of RBs configured by the higher layer signaling.

As can be seen from the above embodiments, when determining the maximum transmit power, the maximum transmit power may be determined according to the first maximum transmit power limit value and the second maximum transmit power limit value, which improves reliability of the maximum transmit power.

Optionally, the maximum transmit power at the target transmission time is a minimum value between the first maximum transmit power limit value and the second maximum transmit power limit value.

Specifically, for the maximum transmission power, the determination is made as shown in the following equation:

wherein, the content of P, _CMAX,f,c (i) Indicates the maximum transmission power, P _CMAX,f,c (i) Indicating a first maximum transmit power limit value, P _CMAX,f,c,RB (i) Indicating the second maximum transmit power limit value.

As can be seen from the above embodiments, in determining the maximum transmission power, the minimum value between the first maximum transmission power limit value and the second maximum transmission power limit value may be selected as the maximum transmission power.

Optionally, the obtaining a second maximum transmit power limit value corresponding to the first number of RBs includes:

receiving the second maximum transmission power limit value transmitted by the network equipment.

Specifically, the terminal may obtain the maximum transmit power limit value directly from the network device. Such as: and the network equipment transmits the second maximum transmission power limit value to the terminal through high-level signaling. The higher layer signaling may be RRC signaling, medium Access Control (Medium Access Control, control Element, MAC-CE), or other signaling.

It can be seen from the foregoing embodiments that, when the second maximum transmit power limit value is obtained, the second maximum transmit power limit value can be directly obtained from the network device, thereby improving the efficiency of obtaining the second maximum transmit power limit value.

receiving a third maximum transmission power limit value sent by the network equipment, wherein the third maximum transmission power limit value is the maximum transmission power limit value of a single PRB;

Specifically, the terminal may obtain a third maximum transmit power limit value from the network device, and calculate a second maximum transmit power limit value according to the third maximum transmit power limit value. The implementation process is shown in the following formula:

wherein, P _CMAX,f,c,1RB Indicating a third maximum transmission power limit value, P _CMAX,f,c,RB (i) Indicating a second maximum transmit power limit value,

and the number of RBs configured at the ith transmission moment, namely the first number of RBs.

As can be seen from the foregoing embodiments, when the second maximum transmission power limit value is obtained, the maximum transmission power limit value of a single PRB may also be obtained from the network device, and then the second maximum transmission power limit value is calculated, so that the flexibility of obtaining the second maximum transmission power limit value is improved.

Specifically, after the terminal obtains the fourth maximum transmit power limit value, that is, the transmit power limit value in the unit bandwidth (1 MHZ), a specific process of determining the second maximum transmit power limit value may include:

(1) And calculating the occupied bandwidth size according to the first RB number and the sub-carrier space (SCS) size. Namely:

occupied bandwidth size = first RB number × SCS number per RB.

The SCS number may be signaled to the terminal by the network device in advance.

(2) And calculating a second maximum transmission power limit value according to the occupied bandwidth size and the fourth maximum transmission power limit value. Namely:

second maximum transmit power limit = occupied bandwidth size × fourth maximum transmit power limit.

As can be seen from the foregoing embodiments, when the second maximum transmit power limit value is obtained, the maximum transmit power limit value in the unit bandwidth may also be obtained from the network device, and then the second maximum transmit power limit value is calculated, so that the flexibility of obtaining the second maximum transmit power limit value is improved.

Optionally, the determining the first transmit power of the target transmission time according to the maximum transmit power of the target transmission time includes:

Specifically, the first RB number may be an RB number configured at an ith transmission time (i.e., a target transmission time), and the second RB number may be i-i ₀ (i.e., the last transmission time of the target transmission time) number of RBs allocated at the transmission time. When determining the first PUCCH closed loop power control factor, the first PUCCH closed loop power control factor may be determined according to the second RB number and the first RB number, so that the first PUCCH closed loop power control factor may be decided in conjunction with the RB change status.

Such as: the RB change state may include the following four change states:

state 1: the second number of RBs is equal to the first number of RBs.

And 2, state: the second number of RBs is less than the first number of RBs.

And a state 3: the second number of RBs is greater than the first number of RBs.

And 4, state 4: the second number of RBs is not equal to the first number of RBs.

As can be seen from the above embodiments, the determination may be made according to the second RB number and the first RB number, so that the first PUCCH closed-loop power control factor may be determined according to the RB change status, thereby avoiding the influence of RB change on the transmission power and avoiding the occurrence of power hopping.

Optionally, in a case that the second number of RBs is equal to the first number of RBs, the determining the first PUCCH closed-loop power control factor at the target transmission time includes:

if the second sending power at the last transmission time of the target transmission time has reached the maximum sending power at the last transmission time of the target transmission time and the accumulated value of the transmission power control TPC corresponding to the target transmission time is greater than or equal to 0, determining that the first PUCCH closed loop power control factor is the same as the second PUCCH closed loop power control factor at the last transmission time of the target transmission time; or,

Specifically, the first PUCCH closed-loop power control factor is an accumulated value, and the accumulation mode is shown in the following formula:

wherein, g _b,f,c (i-i ₀ L) shows the i-i ₀ PUCCH closed loop power control factor, delta, for each transmission instant _PUCCH,b,f,c By receiving information in the TPC indication field in the DCI. Illustratively, T of DCI formatPC Command field to δ _PUCCH,b,f,c δ _PUCCH,b,f,c The mapping relationship of (c) is shown in table 2 below:

TABLE 2

TPC command field	δ _PUCCH,b,f,c
		0	-1dB
1	0dB
		2	1dB
3	3dB

Is a set C _i The accumulated value of the TPC command words in (i.e. TPC accumulated value), C (C) _i ) Is transmitted from PUCCH at time i-i ₀ Front K of _PUCCH (i-i ₀ ) First K of 1 symbol to PUCCH transmission time i _PUCCH (i) Between symbols, wherein i ₀ Greater than 0 is satisfied with i-i ₀ Before time K _PUCCH (i-i ₀ ) The position of each symbol is earlier than K before i moment _PUCCH (i) The smallest integer number of symbol positions.

When determining the first PUCCH closed loop power control factor, the following implementation manners may be included, but are not limited to:

mode 1-1: when the UE is in i-i ₀ The transmission time has reached the maximum power, and the UE transmits at the transmission times i and i-i ₀ Transmission time i-i ₀ The number of RBs configured by higher layer signaling for these two transmission instants is not changed, and

then g is _b,f,c (i,l)＝g _b,f,c (i-i ₀ ,l)。

Mode 1 to 2: when the UE is in i-i ₀ The transmission time has reached the minimum power, and the UE transmits at transmission times i and i-i ₀ Transmission time i-i ₀ The number of RBs configured by the higher layer signaling for these two transmission instants is not changed, and

then g is _b,f,c (i,l)＝g _b,f,c (i-i ₀ ,l)。

Modes 1 to 3: if the RRC layer adjusts the target power value P of the user at the current moment _{O_PUCCH,b,f,c} (q _u ) Then g is _b,f,c (i,l)＝0，k＝0,1,...,i。

It should be noted that the target power value may refer to a signal power that needs to be received by the network device. It is related to the detection performance of the network device, i.e. the network device needs to receive the power signal to meet the detection performance requirement

As can be seen from the foregoing embodiments, when the number of the second RBs is equal to the number of the first RBs, the first PUCCH closed-loop power control factor may be determined according to whether the size of the second transmit power or the target power value at the previous transmission time is adjusted, so that the accuracy of determining the first PUCCH closed-loop power control factor is improved.

Optionally, in a case that the second number of RBs is smaller than the first number of RBs, the determining the first PUCCH closed-loop power control factor at the target transmission time includes:

determining that the first PUCCH closed-loop power control factor is 0;

or,

or the like, or a combination thereof,

or,

if a first set condition is met, determining that the first PUCCH closed-loop power control factor is the first difference value; if the first setting condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the first difference value and the TPC accumulated value; wherein the first setting condition includes that the second transmission power at the last transmission time of the target transmission time has reached the maximum transmission power at the last transmission time of the target transmission time.

Specifically, if the number of RBs configured by the higher layer signaling is changed, for example: the second RB number is smaller than the first RB number, that is, the RB number is larger, and this may include, but is not limited to, the following determination manners:

mode 2-1: and (4) setting the accumulated value to zero, namely determining that the closed-loop power control factor of the first PUCCH is 0. I.e. g _b,f,c (k,l)＝0,k＝0,1,…,i。

Since the second term in equation (5) becomes larger if the number of RBs increases, and it is not reasonable to superimpose the same accumulated value again at this time, a manner 2-1 of restarting accumulation may be adopted, which is inefficient but can ensure that the power of the UE does not suddenly become too large.

Mode 2-2: when the previous transmission moment reaches the maximum power, the power value is ensured to be unchanged, and the current accumulated value is equal to the previous accumulated value minus the power difference (positive number) caused by the increase of the number of RBs. Namely:

if the UE is in i-i ₀ The transmission moment has reached the maximum power P' _CMAX,f,c (i-i ₀ ) And the TPC accumulated value is

Then:

otherwise, then:

wherein, g _b,f,c (i-i ₀ And l) is a second PUCCH closed-loop power control factor; g _b,f,c (i, l) is a first difference value,

is the second difference value>

Represents the i-th to i-th ₀ The number of RBs configured for each transmission time (i.e., the second number of RBs); />

Indicates the number of RBs allocated at the ith transmission time (i.e., the first number of RBs).

The first difference and the second difference are adopted in the above mode 2-2, so as to ensure that the output power value is consistent with the previous output power value, and the granularity of the TPC cannot be ensured to be accumulated according to 1 RB, that is, if the number of RBs changes by 1, the TPC may be actually smaller than 1dB, so that adjustment needs to be performed based on the number of RBs.

Mode 2 to 3: when the previous transmission time reaches the maximum power, the target transmission time stops accumulation, and the accumulated value is kept unchanged. Namely:

if the UE is in i-i ₀ The transmission moment has reached the maximum power P' _CMAX,f,c (i-i ₀ ) And is and

then:

g _b,f,c (i,l)＝g _b,f,c (i-i ₀ ,l)

otherwise, then:

modes 2 to 4: the transmission power at the target transmission moment is guaranteed to be equal to the power at the previous transmission moment, namely the current accumulated value is equal to the previous accumulated value minus the power difference (positive number) caused by the increase of the number of RBs. Namely:

mode 2 to 5: and ensuring that the transmitting power at the current moment is equal to the power of the previous moment and the accumulated value, namely, the current accumulated value is equal to the power difference value (positive number) caused by the increase of the number of RBs subtracted from the previous accumulated value and the accumulated value. Namely:

if the UE is in i-i ₀ The transmission moment reaches the maximum workRate P' _CMAX,f,c (i-i ₀ ) And is made of

Then: />

Otherwise, then:

it can be seen from the above embodiments that, under the condition that the number of the second RBs is smaller than the number of the first RBs, the first PUCCH closed-loop power control factor can be determined in any of the above manners, so that the accuracy of determining the first PUCCH closed-loop power control factor is improved, and power hopping is avoided.

Optionally, the determining a first PUCCH closed-loop power control factor of the target transmission time includes:

determining that the first PUCCH closed-loop power control factor is 0;

or,

Specifically, if the number of RBs configured by the higher layer signaling is changed, for example: the second RB number is greater than the first RB number, that is, the RB number becomes smaller, and this may include, but is not limited to, the following determination manners:

mode 3-1: and (4) setting the accumulated value to zero, namely determining that the closed-loop power control factor of the first PUCCH is 0. I.e. g _b,f,c (k,l)＝0,k＝0,1,…,i。

Mode 3-2: and when the previous transmission time reaches the minimum power value, ensuring that the power value is unchanged, wherein the current accumulated value is equal to the previous accumulated value minus the power difference (negative number) caused by the reduction of the RB number.

If the UE is in i-i ₀ When the transmission time has reached the minimum power, then:

/>

otherwise, then:

wherein, g _b,f,c (i-i ₀ L) is a second PUCCH closed-loop power control factor; g _b,f,c (i, l) is the third difference,

is as followsFour difference value->

The third difference and the fourth difference are adopted in the above mode 3-2, in order to ensure that the output power value is consistent with the previous output power value, the granularity of the TPC cannot be ensured to be accumulated according to 1 RB, that is, if the number of RBs changes by 1, the TPC may be actually smaller than 1dB, and therefore adjustment needs to be performed based on the number of RBs.

Mode 3 to 3: the transmit power at the current moment is guaranteed to be equal to the power at the previous moment, i.e. the current accumulated value is equal to the previous accumulated value minus the power difference (negative number) due to the smaller number of RBs. Namely:

method 3-4: and ensuring that the transmission power at the current moment is equal to the power of the previous moment and the accumulated value, namely, the current accumulated value is equal to the power difference (negative number) which is obtained by subtracting the previous accumulated value and is caused by the reduction of the number of RBs, and the accumulated value is added. Namely:

if the UE is in i-i ₀ The transmission moment has reached the minimum power, then

Otherwise, then:

it can be seen from the above embodiments that, when the number of the second RBs is greater than the number of the first RBs, the first PUCCH closed-loop power control factor can be determined in any of the above manners, so that accuracy of determining the first PUCCH closed-loop power control factor is improved, and power hopping is avoided.

Optionally, in a case that the second number of RBs is not equal to the first number of RBs, the determining the first PUCCH closed-loop power control factor for the target transmission time includes:

determining that the first PUCCH closed-loop power control factor is 0;

or,

or the like, or a combination thereof,

or,

determining the first PUCCH closed-loop power control factor as the fifth difference value;

or,

Specifically, if the number of RBs configured by the higher layer signaling is changed, that is, the second number of RBs is not equal to the first number of RBs, the following determination methods may be included, but are not limited to:

mode 4-1: and (4) setting the accumulated value to zero, namely determining that the closed-loop power control factor of the first PUCCH is 0. I.e. g _b,f,c (k,l)＝0,k＝0,1,…,i。

Mode 4-2: and when the current transmission moment reaches the maximum power or the minimum power, the output power is ensured to be unchanged, namely the current accumulated value is equal to the previous accumulated value minus the power difference value caused by the reduction of the number of RBs. Namely:

if the UE is in i-i ₀ When the transmission moment reaches the maximum power or the minimum power, then:

otherwise, then:

wherein, g _b,f,c (i-i ₀ L) is a second PUCCH closed-loop power control factor; g _b,f,c (i, l) is a fifth difference value,

is a sixth difference value>

Represents the i-th to i-th ₀ The number of RBs configured at each transmission time (i.e., the second number of RBs); />

The fifth difference and the sixth difference are adopted in the above mode 4-2, so as to ensure that the output power value is consistent with the previous output power value, and the granularity of the TPC cannot be ensured to be accumulated according to 1 RB, that is, if the number of RBs changes by 1, the TPC may actually be less than 1dB, so that adjustment needs to be performed based on the number of RBs.

Mode 4-3: when the current moment reaches the maximum power, the accumulation is stopped at the current moment, and the accumulated value is kept unchanged. Namely:

if the UE is in i-i ₀ The maximum power has been reached at the moment of transmission,

g _b,f,c (i,l)＝g _b,f,c (i-i ₀ ,l)；

otherwise, then:

mode 4-4: when the minimum power is reached at the current moment, the output power is ensured to be unchanged, namely the current accumulated value is equal to the previous accumulated value minus the power difference (negative number) caused by the reduction of the RB number. Namely:

if the UE is in i-i ₀ The transmission moment has reached the minimum power already,

otherwise, then:

mode 4 to 5: and ensuring that the transmission power at the current moment is equal to the power at the previous moment, namely that the current accumulated value is equal to the previous accumulated value minus the power difference value caused by the change of the RB number. Namely:

modes 4 to 6: and ensuring that the transmitting power at the current moment is equal to the power of the previous moment and the accumulated value, namely, the current accumulated value is equal to the power difference value which is obtained by subtracting the RB number change from the previous accumulated value, and the accumulated value is added. Namely:

it can be seen from the above embodiments that, under the condition that the number of the second RBs is not equal to the number of the first RBs, the first PUCCH closed-loop power control factor can be determined in any of the above manners, so that the accuracy of determining the first PUCCH closed-loop power control factor is improved, and power hopping is avoided.

Optionally, the determining the first transmit power of the target transmission time according to the maximum transmit power of the target transmission time and the first PUCCH closed-loop power control factor includes:

Specifically, after determining the first PUCCH closed-loop power control factor at the target transmission time according to the second RB number and the first RB number configured at the last transmission time of the target transmission time, the fifth maximum transmit power limit value may be calculated according to the first PUCCH closed-loop power control factor, and the calculation process is shown in the following formula

Wherein P1 represents a fifth maximum transmit power limit value for the ith transmission time instant; p is _{O_PUCCH,b,f,c} (q _u ) Representing a target power value, q _u Representing a target power value set index; μ represents a carrier spacing configuration;

the number of RBs configured at the ith transmission moment is represented; PL _b,f,c (q _d ) Represents the value of path loss, q _d Represents a reference signal, RS, resource index; delta _{F_PUCCH} (F) Represents a PUCCH format offset value; delta _TF,b,f,c (i) A dynamic power adjustment factor representing an ith transmission time instant; g is a radical of formula _b,f,c (i, l) a first PUCCH closed loop power control factor representing an ith transmission time instant; b denotes an index of the bandwidth part BWP; l denotes a PUCCH power control adjustment state index.

As can be seen from the foregoing embodiments, after determining a first PUCCH closed-loop power control factor at a target transmission time according to a second RB number and a first RB number configured at a previous transmission time of the target transmission time, a fifth maximum transmit power limit value may be calculated according to the first PUCCH closed-loop power control factor, and a first transmit power at the target transmission time is determined according to the fifth maximum transmit power limit value and the maximum transmit power at the target transmission time, thereby improving accuracy of PUCCH power control.

Optionally, the determining the first transmit power at the target transmission time according to the fifth maximum transmit power limit value and the maximum transmit power at the target transmission time includes:

wherein, P _PUCCH,b,f,c (i,q _u ,q _d L) represents the first transmission power of the terminal at the ith transmission moment on the carrier f in the main cell c; p1 represents a fifth maximum transmission power limit value at the ith transmission time; p' _CMAX,f,c (i) Represents the maximum transmission power at the ith transmission time; p is _{O_PUCCH,b,f,c} (q _u ) Represents a target power value, q _u Representing a target power value set index; μ represents a carrier spacing configuration;

the number of RBs configured at the ith transmission moment is represented; PL _b,f,c (q _d ) Represents the path loss value, q _d Represents a reference signal, RS, resource index; delta of _{F_PUCCH} (F) Represents a PUCCH format offset value; delta of _TF,b,f,c (i) A dynamic power adjustment factor representing an ith transmission time instant; g _b,f,c (i, l) a first PUCCH closed loop power control factor representing an ith transmission time instant; b denotes an index of the bandwidth part BWP; l denotes a PUCCH power control adjustment state index.

As can be seen from the above embodiments, the first transmit power at the target transmission time may be calculated by the first formula, which improves the efficiency of determining the first transmit power at the target transmission time.

The implementation process of the above PUCCH power control is specifically described by five examples as follows:

the first example is as follows: determining UE maximum transmit power

(1) The standard protocol determines the maximum transmit power values for different UE classes.

(2) The terminal reports the UE grade, and the base station determines P according to the UE grade _CMAX,f,c (i)。

(3) And the base station configures the number of RBs occupied by the PUCCH of the UE through high-level signaling.

(4) A base station accesses a single PRB transmission power limiting value P of a frequency band according to UE _CMAX,1RB And the number of RBs occupied, calculatingThe maximum transmission power value of the UE under the current RB number is:

informing the UE of the P through higher layer signaling _CMAX,f,c,RB (i)。

(5) The terminal calculates the maximum transmit power of the UE, i.e.

Example two: determining UE maximum transmit power

(4) The base station informs the UE of the transmission power limit value P of a single PRB of the access frequency band through high-level signaling _CMAX,1RB 。

(5) Terminal according to P _CMAX,1RB And the number of occupied RBs, calculating the maximum transmission power value of the UE under the current number of RBs, i.e. calculating the maximum transmission power value

(6) The terminal calculates the maximum transmit power of the UE, i.e.

Example three: determining UE maximum transmit power

(4) The base station informs the maximum transmission power limit value of the UE under the unit bandwidth (1 MHZ) through high-level signaling.

(5) And the terminal calculates the occupied bandwidth according to the number of RBs occupied by the UE and the size of the SCS.

(6) The terminal calculates the maximum transmission power value P of the UE under the current RB number according to the occupied bandwidth size and the maximum transmission power limit value under the unit bandwidth (1 MHZ) _CMAX,f,c,RB (i)。

(7) The terminal calculates the maximum transmit power of the UE, i.e.

Example four: determining closed loop power control factor (RB number is increased and decreased respectively)

(1) The terminal stores the previous time i-i ₀ Transmit power P _PUCCH,b,f,c (i-i ₀ ,q _u ,q _d L), storing the previous time i-i ₀ Number of RB

(2) If the number of RBs is not changed, i.e.

When the UE is in i-i ₀ The transmission moment has reached the maximum power P' _CMAX,f,c (i-i ₀ ) And->

Then g is _b,f,c (i,l)＝g _b,f,c (i-i ₀ ,l)。

then g is _b,f,c (i,l)＝g _b,f,c (i-i ₀ ,l)。

If the RRC layer adjusts the target power value P of the user at the current moment _{O_PUCCH,b,f,c} (q _u ) Then g is _b,f,c (k,l)＝0,k＝0,1,…,i。

(3) If the number of RBs becomes large, i.e.

The closed loop power control factor may be calculated using one of the following methods:

the method comprises the following steps: the accumulated value is set to zero.

The second method comprises the following steps: and when the previous moment reaches the maximum power, the accumulation is stopped at the current moment, and the accumulated value is kept unchanged.

The third method comprises the following steps: the transmission power at the current moment is guaranteed to be equal to the power at the previous moment, namely the current accumulated value is equal to the previous accumulated value minus the power difference (positive number) caused by the increase of the number of RBs.

The method four comprises the following steps: and ensuring that the transmission power at the current moment is equal to the power of the previous moment and the accumulated value, namely, the current accumulated value is equal to the power difference (positive number) which is obtained by subtracting the power difference value (positive number) caused by the increase of the number of RBs from the previous accumulated value and then adding the accumulated value.

(4) If the number of RBs becomes small, i.e.

the method comprises the following steps: the accumulated value is set to zero.

The second method comprises the following steps: and when the minimum power value is reached at the previous moment, the power value is ensured to be unchanged.

The third method comprises the following steps: the transmit power at the current moment is guaranteed to be equal to the power at the previous moment, i.e. the current accumulated value is equal to the previous accumulated value minus the power difference (negative number) due to the smaller number of RBs.

The method comprises the following steps: and ensuring that the transmission power at the current moment is equal to the power of the previous moment and the accumulated value, namely, the current accumulated value is equal to the power difference (negative number) which is obtained by subtracting the previous accumulated value and is caused by the reduction of the number of RBs, and the accumulated value is added.

Example five: determining closed loop power control factor (RB number increasing and decreasing unified process)

(2) If the number of RBs is not changed, i.e.

Then the

When the UE is in i-i ₀ The transmission moment has reached the maximum power P' _CMAX,f,c (i-i ₀ ) And is and

then g is _b,f,c (i,l)＝g _b,f,c (i-i ₀ ,l)。

then g is _b,f,c (i,l)＝g _b,f,c (i-i ₀ ,l)。

If the RRC layer adjusts the target power value P of the user at the current moment _{O_PUCCH,b,f,c} (q _u ) Then g is obtained _b,f,c (k,l)＝0,k＝0,1,…,i。

(3) If the number of RBs changes, i.e.

The closed loop power control factor may be calculated using one of the following methods: />

The method comprises the following steps: the accumulated value is set to zero.

The second method a: and when the current moment reaches the maximum power or the minimum power, the output power is ensured to be unchanged, namely the current accumulated value is equal to the previous accumulated value minus the power difference value caused by the reduction of the RB number.

The second method b: when the current moment reaches the maximum power, the accumulation is stopped at the current moment, and the accumulated value is kept unchanged; when the minimum power is reached at the current moment, the output power is ensured to be unchanged, namely the current accumulated value is equal to the previous accumulated value minus the power difference (negative number) caused by the reduction of the RB number.

The third method comprises the following steps: and ensuring that the transmission power at the current moment is equal to the power at the previous moment, namely that the current accumulated value is equal to the previous accumulated value minus the power difference value caused by the change of the RB number.

The method comprises the following steps: and ensuring that the transmitting power at the current moment is equal to the power of the previous moment and the accumulated value, namely, the current accumulated value is equal to the power difference value which is obtained by subtracting the RB number change from the previous accumulated value, and the accumulated value is added.

The PUCCH power control device provided in this embodiment is specifically configured to execute the process of the foregoing method embodiment as shown in fig. 2 below, and please refer to the content of the PUCCH power control method embodiment in detail, which is not described herein again.

Fig. 2 is a schematic structural diagram of a PUCCH power control device according to an embodiment of the present disclosure, where the PUCCH power control device may be configured to perform the PUCCH power control method shown in fig. 1; as shown in fig. 2, the PUCCH power control apparatus may include:

a first determining unit 21, configured to determine, according to the number of first resource blocks RB configured at a target transmission time and a terminal UE level, a maximum transmit power at the target transmission time;

a second determining unit 22, configured to determine the first transmit power at the target transmission time according to the maximum transmit power at the target transmission time.

In a possible implementation manner, the first determining unit 21 includes:

a first determining subunit, configured to determine a first maximum transmit power limit value according to the UE class;

In a possible implementation manner, the second determining unit 22 includes:

a third determining subunit, configured to determine, according to the first number of RBs and a second number of RBs configured at a previous transmission time of the target transmission time, a first PUCCH closed-loop power control factor at the target transmission time;

In a possible implementation manner, in a case that the second number of RBs is equal to the first number of RBs, the third determining subunit is specifically configured to:

In a possible implementation manner, in a case that the second number of RBs is smaller than the first number of RBs, the third determining subunit is specifically configured to:

determining that the first PUCCH closed-loop power control factor is 0;

or the like, or a combination thereof,

or,

In a possible implementation manner, when the second number of RBs is greater than the first number of RBs, the third determining subunit is specifically configured to:

determining that the first PUCCH closed-loop power control factor is 0;

or the like, or a combination thereof,

or,

determining that the first PUCCH closed-loop power control factor is 0;

or the like, or a combination thereof,

or,

or the like, or a combination thereof,

or,

In one possible implementation manner, the fourth determining subunit includes:

wherein, P _PUCCH,b,f,c (i,q _u ,q _d L) represents the first transmission power of the terminal at the ith transmission moment on the carrier f in the main cell c; p1 represents a fifth maximum transmission power limit value at the ith transmission time; p' _CMAX,f,c (i) Represents the maximum transmission power at the ith transmission time; p _{O_PUCCH,b,f,c} (q _u ) Representing a target power value, q _u Representing a target power value set index; μ represents a carrier spacing configuration;

the number of RBs configured at the ith transmission moment is represented; PL _b,f,c (q _d ) Represents the path loss value, q _d Represents a reference signal, RS, resource index; delta of _{F_PUCCH} (F) Represents a PUCCH format offset value; delta of _TF,b,f,c (i) A dynamic power adjustment factor representing an ith transmission time instant; g is a radical of formula _b,f,c (i, l) represents a first PUCCH closed loop power control factor of the ith transmission time instant; b denotes an index of the bandwidth part BWP; l denotes a PUCCH power control adjustment state index.

It should be noted that, in the embodiment of the present application, the division of the unit is schematic, and is only one logic function division, and when the actual implementation is realized, another division manner may be provided. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

It should be noted that, the apparatus provided in this embodiment of the present application can implement all the method steps implemented by the PUCCH power control method embodiment, and can achieve the same technical effect, and details of the same parts and beneficial effects as those of the method embodiment in this embodiment are not described herein again.

The terminal provided in the embodiment of the present application is specifically configured to execute the process of the foregoing method embodiment, as shown in fig. 3 below, for detailed description, the content of the foregoing PUCCH power control method embodiment is referred to, and details are not described herein again.

Fig. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present application. The terminal device may be configured to perform the PUCCH power control method shown in fig. 1. As shown in fig. 3, a transceiver 300 for receiving and transmitting data under the control of a processor 310.

Wherein in fig. 3, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 310, and various circuits, represented by memory 320, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 300 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over transmission media including wireless channels, wired channels, fiber optic cables, and the like. For different user devices, the user interface 330 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 310 is responsible for managing the bus architecture and general processing, and the memory 320 may store data used by the processor 310 in performing operations.

Alternatively, the processor 310 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also have a multi-core architecture.

The processor 310, by invoking the computer program stored by the memory 320, is configured to perform the following operations in accordance with the obtained executable instructions:

determining a first maximum transmission power limit value according to the UE grade;

determining a first PUCCH closed-loop power control factor at the target transmission moment according to the first RB number and a second RB number configured at the last transmission moment of the target transmission moment;

In a possible implementation manner, in a case that the second number of RBs is equal to the first number of RBs, the determining a first PUCCH closed-loop power control factor at the target transmission time includes:

determining that the first PUCCH closed-loop power control factor is 0;

or,

determining that the first PUCCH closed-loop power control factor is 0;

or,

if a second set condition is met, determining that the first PUCCH closed-loop power control factor is a third difference value, wherein the third difference value is a difference value between a second PUCCH closed-loop power control factor at a last transmission moment of the target transmission moment and a fourth difference value, and the fourth difference value is a difference value between transmission power calculated according to the second RB number and transmission power calculated according to the first RB number when the second RB number is greater than the first RB number; if the second set condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the second PUCCH closed-loop power control factor and a TPC accumulated value corresponding to the target transmission moment; wherein the second setting condition includes that the second transmission power at the last transmission time of the target transmission time has reached the minimum transmission power at the last transmission time of the target transmission time;

or,

In a possible implementation manner, in a case that the second number of RBs is not equal to the first number of RBs, the determining a first PUCCH closed-loop power control factor for the target transmission time includes:

determining that the first PUCCH closed-loop power control factor is 0;

or,

if a third setting condition is met, determining that the first PUCCH closed-loop power control factor is a fifth difference value, wherein the fifth difference value is a difference value between a second PUCCH closed-loop power control factor and a sixth difference value at a last transmission time of the target transmission time, and the sixth difference value is a difference value between transmission power calculated according to the second RB number and transmission power calculated according to the first RB number when the second RB number is different from the first RB number; if the third set condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the second PUCCH closed-loop power control factor and a TPC accumulated value corresponding to the target transmission moment; wherein the third setting condition includes that the second transmission power at the last transmission time of the target transmission time has reached the maximum transmission power or the minimum transmission power at the last transmission time of the target transmission time;

or,

In one possible implementation manner, the determining the first transmit power of the target transmission time according to the maximum transmit power of the target transmission time and the first PUCCH closed loop power control factor includes:

the number of RBs configured at the ith transmission moment is represented; PL _b,f,c (q _d ) Represents the path loss value, q _d Represents a reference signal, RS, resource index; delta _{F_PUCCH} (F) Represents a PUCCH format offset value; delta _TF,b,f,c (i) A dynamic power adjustment factor representing an ith transmission time instant;g _b,f,c (i, l) represents a first PUCCH closed loop power control factor of the ith transmission time instant; b denotes an index of the bandwidth part BWP; l denotes a PUCCH power control adjustment state index.

It should be noted that, the terminal device provided in the embodiment of the present application can implement all the method steps implemented by the above PUCCH power control method embodiment, and can achieve the same technical effect, and details of the same parts and beneficial effects as those of the method embodiment in this embodiment are not described herein again.

On the other hand, an embodiment of the present application further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, where the computer program is configured to cause the processor to execute the method provided in each of the above embodiments, and the method includes:

The processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), solid State Disks (SSDs)), etc.

On the other hand, an embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored, where the computer program is configured to enable the computer to execute the steps of the PUCCH power control method, and for details, details of the contents of the PUCCH power control method embodiment are described in detail, and are not repeated herein.

In another aspect, an embodiment of the present application provides a chip system, where the chip system includes at least one processor, a memory, and an interface circuit, where the memory, the interface circuit, and the at least one processor are interconnected by a line, and the at least one memory stores instructions therein; when the instruction is executed by the processor, the steps of the PUCCH power control method are implemented, for which details are described in the content of the PUCCH power control method embodiment, and are not described herein again.

On the other hand, an embodiment of the present application provides a computer program product, where the computer program product includes instructions to, when the computer program product runs on a computer, cause the computer to execute the steps of the PUCCH power control method, for details, see the contents of the above PUCCH power control method embodiment, which are not described herein again.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for controlling uplink control channel PUCCH power is characterized by comprising the following steps:

2. The PUCCH power control method according to claim 1, wherein the determining the maximum transmission power at the target transmission time according to the first RB number configured at the target transmission time and the UE rank comprises:

3. The PUCCH power control method according to claim 2, wherein the maximum transmission power at the target transmission time is a minimum value between the first maximum transmission power limit value and the second maximum transmission power limit value.

4. The PUCCH power control method according to claim 2, wherein the obtaining of the second maximum transmit power limitation value corresponding to the first number of RBs comprises:

5. The PUCCH power control method according to claim 2, wherein the obtaining the second maximum transmit power limit value corresponding to the first number of RBs comprises:

6. The PUCCH power control method according to claim 2, wherein the obtaining the second maximum transmit power limit value corresponding to the first number of RBs comprises:

7. The PUCCH power control method according to claim 1, wherein the determining the first transmission power of the target transmission time according to the maximum transmission power of the target transmission time comprises:

8. The PUCCH power control method according to claim 7, wherein the determining the first PUCCH closed loop power control factor for the target transmission time when the second number of RBs is equal to the first number of RBs comprises:

9. The PUCCH power control method according to claim 7, wherein the determining the first PUCCH closed loop power control factor for the target transmission time when the second number of RBs is less than the first number of RBs comprises:

determining that the first PUCCH closed-loop power control factor is 0;

or the like, or a combination thereof,

if a first set condition is met, determining that the first PUCCH closed-loop power control factor is a first difference value, wherein the first difference value is a difference value between a second PUCCH closed-loop power control factor and a second difference value at a last transmission moment of the target transmission moment, and the second difference value is a difference value between transmission power calculated according to the second RB number and transmission power calculated according to the first RB number when the second RB number is smaller than the first RB number; if the first set condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the second PUCCH closed-loop power control factor and a TPC accumulated value corresponding to the target transmission moment; wherein the first setting condition includes that the second transmission power at the last transmission time of the target transmission time has reached the maximum transmission power at the last transmission time of the target transmission time;

or,

10. The PUCCH power control method according to claim 7, wherein the determining the first PUCCH closed loop power control factor for the target transmission time when the second number of RBs is greater than the first number of RBs comprises:

determining that the first PUCCH closed-loop power control factor is 0;

or,

11. The PUCCH power control method according to claim 7, wherein the determining the first PUCCH closed loop power control factor for the target transmission time when the second number of RBs and the first number of RBs are not equal comprises:

determining that the first PUCCH closed-loop power control factor is 0;

or,

or the like, or a combination thereof,

or,

or the like, or a combination thereof,

12. The PUCCH power control method according to claim 7, wherein the determining the first transmission power for the target transmission time according to the maximum transmission power for the target transmission time and the first PUCCH closed loop power control factor comprises:

13. The PUCCH power control method according to claim 12, wherein the determining the first transmit power of the target transmission time according to the fifth maximum transmit power limitation value and the maximum transmit power of the target transmission time comprises:

14. A terminal, comprising a memory, a transceiver, a processor:

the memory for storing a computer program; a transceiver for transceiving data under control of the processor; the processor is used for reading the computer program in the memory and executing the following operations:

and determining the first transmission power at the target transmission moment according to the maximum transmission power at the target transmission moment.

15. The terminal of claim 14, wherein the determining the maximum transmit power at the target transmission time according to the first RB number configured at the target transmission time and the UE rank comprises:

16. The terminal of claim 15, wherein the maximum transmit power at the target transmission time is a minimum between the first maximum transmit power limit and the second maximum transmit power limit.

17. The terminal of claim 15, wherein the obtaining the second maximum transmission power limit value corresponding to the first number of RBs comprises:

18. The terminal of claim 15, wherein the obtaining the second maximum transmission power limit value corresponding to the first number of RBs comprises:

19. The terminal of claim 15, wherein the obtaining the second maximum transmission power limit value corresponding to the first number of RBs comprises:

20. The terminal of claim 14, wherein the determining the first transmit power of the target transmission time according to the maximum transmit power of the target transmission time comprises:

21. The terminal of claim 20, wherein the determining the first PUCCH closed loop power control factor for the target transmission time when the second number of RBs is equal to the first number of RBs comprises:

22. The terminal of claim 20, wherein in the case that the second number of RBs is smaller than the first number of RBs, the determining the first PUCCH closed loop power control factor for the target transmission time comprises:

determining that the first PUCCH closed-loop power control factor is 0;

or,

or the like, or a combination thereof,

or,

if a first set condition is met, the first PUCCH closed-loop power control factor is the first difference value; if the first set condition is not met, determining that the first PUCCH closed-loop power control factor is the sum of the first difference value and the TPC accumulated value; wherein the first setting condition includes that the second transmission power at the last transmission time of the target transmission time has reached the maximum transmission power at the last transmission time of the target transmission time.

23. The terminal of claim 20, wherein in the case that the second number of RBs is greater than the first number of RBs, the determining the first PUCCH closed loop power control factor for the target transmission time comprises:

determining that the first PUCCH closed-loop power control factor is 0;

or the like, or a combination thereof,

or,

24. The terminal of claim 20, wherein in a case that the second number of RBs is not equal to the first number of RBs, the determining the first PUCCH closed loop power control factor for the target transmission time comprises:

determining that the first PUCCH closed-loop power control factor is 0;

or the like, or a combination thereof,

or,

25. The terminal of claim 20, wherein the determining the first transmit power at the target transmission time based on the maximum transmit power at the target transmission time and the first PUCCH closed loop power control factor comprises:

26. The terminal of claim 25, wherein the determining the first transmit power at the target transmission time according to the fifth maximum transmit power limit value and the maximum transmit power at the target transmission time comprises:

the number of RBs configured at the ith transmission moment is represented; PL _b,f,c (q _d ) Represents the path loss value, q _d Represents a reference signal, RS, resource index; delta _{F_PUCCH} (F) Representing a PUCCH format offset value; delta _TF,b,f,c (i) A dynamic power adjustment factor representing an ith transmission time instant; g _b,f,c (i, l) a first PUCCH closed loop power control factor representing an ith transmission time instant; b denotes an index of the bandwidth part BWP; l denotes a PUCCH power control adjustment state index.

27. An uplink control channel (PUCCH) power control device, comprising:

28. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing a processor to perform the method of any one of claims 1 to 13.