CN112399538B

CN112399538B - Power control method and device

Info

Publication number: CN112399538B
Application number: CN201910758311.7A
Authority: CN
Inventors: 张兴炜; 刘哲
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2022-11-22
Anticipated expiration: 2039-08-16
Also published as: WO2021032011A1; CN112399538A

Abstract

The application provides a power control method and device. The method comprises the following steps: the method comprises the steps of receiving a first signaling from a network device at a first moment, wherein the first signaling indicates resources of a first channel, receiving a second signaling from the network device at a second moment, wherein the second signaling indicates resources of a second channel, the second signaling comprises a first transmission power control indication, the first transmission power control indication is used for indicating a first correction value of the second channel, the second channel is sent before the first channel at the second moment, the second channel is sent before the first moment, the first correction value is used as a power adjustment value of the second channel, or the power adjustment value of the second channel is reset, or the sum of the first correction value and the power adjustment value of a third channel is used as the power adjustment value of the second channel, and the third channel is a channel sent before the second channel.

Description

Power control method and device

Technical Field

The present application relates to the field of mobile communications technologies, and in particular, to a power control method and apparatus.

Background

In the 5 th generation mobile communication (the 5) ^th generation, 5G) New Radio (NR) system, the evolved ultra-high-reliability and low-latency communications (eURLLC) technology is mainly oriented to three application scenarios: industrial control, national grid, and remote driving. Some new characteristics are introduced for eURLLC, one of the new characteristics is allowing out-of-order scheduling or out-of-order feedback, where the out-of-order scheduling refers to that an uplink channel scheduled by a downlink control signaling received after a terminal device is sent first, and the out-of-order feedback refers to that a feedback Physical Uplink Control Channel (PUCCH) corresponding to a Physical Downlink Shared Channel (PDSCH) received after the terminal device is sent first.

In a mechanism that performs uplink power control using cumulative Transmit Power Control (TPC), a terminal device needs to determine a closed-loop power adjustment value of an uplink channel to be transmitted next according to a closed-loop power adjustment value of an uplink channel to be transmitted previously, that is, needs to perform TPC accumulation according to the closed-loop power adjustment value of the uplink channel to be transmitted previously. However, after out-of-order scheduling or out-of-order feedback is introduced, since the terminal device does not send the uplink channel in sequence any more, the terminal device may not normally determine the closed-loop power adjustment value of the uplink channel to be sent next time according to the closed-loop power adjustment value of the uplink channel sent previously, and thus the power control mechanism for the out-of-order transmission channel is not applicable any more.

Disclosure of Invention

The embodiment of the application provides a power control method and device, which are suitable for a scene of out-of-order scheduling or out-of-order feedback.

In a first aspect, a power control method is provided, which may be performed by a terminal device or a communication apparatus (e.g., a chip system) capable of supporting the terminal device to implement the method. The method comprises the following steps: the method comprises the steps of receiving first signaling from network equipment at a first moment, wherein the first signaling indicates resources of a first channel, receiving second signaling from the network equipment at a second moment, wherein the second signaling indicates resources of a second channel, the second signaling comprises a first transmission power control indication, the first transmission power control indication is used for indicating a first correction value of the second channel, and the first correction value is used as a power adjustment value of the second channel, or the power adjustment value of the second channel is reset, or the sum of the first correction value and the power adjustment value of a third channel is used as the power adjustment value of the second channel.

The second time is after the first time, the second channel is transmitted before the first channel, and the third channel is a channel transmitted before the second channel.

By adopting the method, after determining that out-of-order scheduling or out-of-order feedback occurs, the terminal equipment determines the power adjustment value of the out-of-order transmission channel by adopting an absolute TPC mode, or resets the power adjustment value of the out-of-order transmission channel, or determines the power adjustment value of the out-of-order transmission channel by using the power adjustment value of the channel transmitted before the out-of-order transmission channel.

In a possible design, before the terminal device executes the power control method, the terminal device may further receive a first indication from the network device, where the first indication is used to indicate a manner in which the second channel performs power control, where the manner includes any one of: taking the first correction value as a power adjustment value of the second channel; or resetting the power adjustment value of the second channel; or, the sum of the first correction value and the power adjustment value of the third channel is used as the power adjustment value of the second channel. In this design, the terminal device may execute one of the three power control modes according to the first indication sent by the network device, thereby providing a flexible power control mode for the terminal device.

In one possible design, the first indication is included in the second signaling. By adopting the method, the first indication can be sent by utilizing the existing signaling, and the signaling overhead can be saved.

In one possible design, the second signaling includes a first resource indicator, where the first resource indicator is used to indicate time domain resources for transmitting the second channel; based on the design, before the terminal device takes the sum of the first correction value and the power adjustment value of the third channel as the power adjustment value of the second channel, the terminal device can also determine the sending time of the second channel according to the first resource indication; and determining that the time interval between the receiving time of the first signaling and the sending time of the second channel is greater than or equal to the first processing time delay.

In one possible design, the first signaling includes a second transmission power control indication and a second resource indication, the second transmission power control indication is used for indicating a second correction value of the first channel, and the second resource indication is used for indicating a time domain resource for transmitting the first channel.

In a possible design, the terminal device may further receive, at a third time, third signaling from the network device, where the third signaling is used to indicate resources of a third channel, and the third time is before the first time, and the sum of the second correction value and the power adjustment value of the third channel is used as the power adjustment value of the first channel.

In a possible design, the terminal device may further use the second correction value as a power adjustment value of the first channel; alternatively, the power adjustment value for the first channel is reset.

In a possible design, before the terminal device uses the first correction value as the power adjustment value of the second channel, or resets the power adjustment value of the second channel, or uses the sum of the first correction value and the power adjustment value of the third channel as the power adjustment value of the second channel, the terminal device may further determine the transmission time of the first channel according to the second resource indication; and determining that the time interval between the receiving time of the second signaling and the sending time of the first channel is smaller than the second processing time delay.

In one possible design, the terminal device may further determine a transmission time of the first channel according to the second resource indicator; determining a time interval between the receiving time of the second signaling and the sending time of the first channel, wherein the time interval is greater than or equal to a second processing time delay; and taking the sum of the second correction value and the power adjustment value of the second channel as the power adjustment value of the first channel.

In one possible design, the terminal device may further receive a second indication from the network device, where the second indication is used to indicate a manner in which the first channel is power controlled, where the manner includes any one of: the second correction value is used as a power adjustment value of the first channel; or resetting the power adjustment value of the first channel; or, taking the sum of the second correction value and the power adjustment value of a third channel as the power adjustment value of the first channel, wherein the third channel is a channel transmitted before the second channel; or, the sum of the second correction value and the power adjustment value of the second channel is used as the power adjustment value of the first channel.

In one possible design, the second indication is included in the first signaling. By adopting the method, the second indication can be sent by utilizing the existing signaling, and the signaling overhead can be saved.

In one possible design, the first channel and the second channel are Physical Uplink Shared Channels (PUSCHs); or the first channel and the second channel are PUCCHs; alternatively, the first channel and the second channel are Sounding Reference Signals (SRS).

In one possible design, the first signaling is Downlink Control Information (DCI) and/or Radio Resource Control (RRC) signaling, and/or the second signaling is DCI and/or RRC signaling.

In a second aspect, a power control method is provided, which may be executed by a network device or a communication apparatus (e.g., a chip system) capable of supporting the network device to implement the method, and in this application, the method is described as being executed by the network device. The method comprises the following steps: the method comprises the steps of sending a first signaling to a terminal device at a first moment, wherein the first signaling indicates resources of a first channel, sending a second signaling to the terminal device at a second moment, wherein the second signaling indicates resources of a second channel, the second signaling comprises a first transmission power control indication, the first transmission power control indication is used for indicating a first correction value of the second channel, the second channel is transmitted before the first channel after the first moment, and indication information is sent to the terminal device and used for indicating a power control mode of the terminal device.

In one possible design, the indication information includes a first indication, and the first indication is used to indicate a manner in which the second channel performs power control, where the manner includes any one of: taking the first correction value as a power adjustment value of the second channel; or, resetting the power adjustment value of the second channel; or, the sum of the first correction value and a power adjustment value of a third channel, which is a channel transmitted before the second channel, is used as the power adjustment value of the second channel.

In one possible design, the first indication is included in the second signaling.

In one possible design, a second transmission power control indication is included in the first signaling, the second transmission power control indication indicating a second correction value for the first channel.

In one possible design, the indication information includes a second indication, and the second indication is used to indicate a manner in which the first channel performs power control, where the manner includes any one of: using the second correction value as a power adjustment value of the first channel; or resetting the power adjustment value of the first channel; or, taking the sum of the second correction value and the power adjustment value of a third channel as the power adjustment value of the first channel, wherein the third channel is a channel transmitted before the second channel; or, the sum of the second correction value and the power adjustment value of the second channel is used as the power adjustment value of the first channel.

In one possible design, the second indication is included in the first signaling.

In one possible design, the first channel and the second channel are PUSCHs; or the first channel and the second channel are PUCCHs; alternatively, the first channel and the second channel are SRSs.

In one possible design, the first signaling is DCI and/or RRC signaling and/or the second signaling is DCI and/or RRC signaling.

In a third aspect, the present application provides a power control apparatus having the functionality to implement the method of the first aspect or any one of the possible designs of the first aspect. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a fourth aspect, the present application provides a power control apparatus having the functionality to implement the method of the second aspect or any one of the possible designs of the second aspect. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a fifth aspect, the present application provides a power control apparatus, comprising: at least one processor and a memory; the memory is configured to store computer-executable instructions, which when executed by the apparatus, are executed by the at least one processor to cause the apparatus to perform the method as set forth in the first aspect or any one of the possible designs of the first aspect.

In a sixth aspect, the present application provides a power control apparatus, comprising: at least one processor and memory; the memory is configured to store computer-executable instructions that, when executed by the apparatus, cause the apparatus to perform the method as set forth in the second aspect or any one of the possible designs of the second aspect.

In a seventh aspect, the present application provides a power control apparatus comprising at least one processor and an interface circuit, the at least one processor being configured to communicate with other apparatuses via the interface circuit and to perform the method as set forth in the first aspect or any one of the possible designs of the first aspect.

In an eighth aspect, the present application provides a power control apparatus comprising at least one processor and an interface circuit, the at least one processor configured to communicate with other apparatus via the interface circuit and to perform a method as set forth in the second aspect or any one of the possible designs of the second aspect.

In a ninth aspect, the present application provides a power control apparatus, comprising at least one processor, coupled to a memory, for invoking a program stored in the memory to perform the method as set forth in the first aspect or any one of the possible designs of the first aspect. The memory may be located within the device or external to the device.

In a tenth aspect, the present application provides a power control apparatus comprising at least one processor, coupled to a memory, for invoking a program stored in the memory to perform a method as set forth in the second aspect or any one of the possible designs of the second aspect. The memory may be located within the device or external to the device.

In an eleventh aspect, an embodiment of the present application provides a chip system, where the chip system includes at least one processor and may further include a memory, and is configured to implement the method in the first aspect or any one of the possible designs of the first aspect. The chip system may be formed by a chip, and may also include a chip and other discrete devices.

In a twelfth aspect, an embodiment of the present application provides a chip system, where the chip system includes at least one processor and may further include a memory, and is configured to implement the method in the second aspect or any one of the possible designs of the second aspect. The chip system may be formed by a chip, and may also include a chip and other discrete devices.

In a thirteenth aspect, an embodiment of the present application provides a system, including a terminal device configured to perform the method in any one of the possible designs of the first aspect or the first aspect, and a network device configured to perform the method in any one of the possible designs of the second aspect or the second aspect.

In a fourteenth aspect, an embodiment of the present application further provides a computer storage medium, where the computer storage medium stores computer-executable instructions, and when the computer-executable instructions are called by a computer, the computer executes the method provided by the first aspect or any one of the designs of the first aspect, or the computer executes the method provided by the second aspect or any one of the designs of the second aspect.

In a fifteenth aspect, the present application further provides a computer program product, which has instructions stored therein, and when the computer program product runs on a computer, causes the computer to execute the method described in the first aspect or any one of the possible designs of the first aspect, or causes the computer to execute the method described in the second aspect or any one of the possible designs of the second aspect.

Drawings

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic diagram of another communication system provided in an embodiment of the present application;

fig. 3 is a schematic diagram of another communication system provided in an embodiment of the present application;

FIG. 4 is a schematic diagram of a possible out-of-order scheduling;

fig. 5 is a schematic flowchart of a power control method according to an embodiment of the present disclosure;

fig. 6 a-6 h are schematic flow charts of power control methods provided in embodiments of the present application;

fig. 7 a-7 b are schematic flow charts of power control methods provided in embodiments of the present application;

FIG. 8 is a schematic structural diagram of an apparatus according to an embodiment of the present disclosure;

FIG. 9 is a schematic view of another apparatus according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of another apparatus provided in an embodiment of the present application;

fig. 11 is a schematic structural diagram of another apparatus according to an embodiment of the present disclosure.

Detailed Description

First, some terms in the present application are explained so as to be easily understood by those skilled in the art.

1) The terminal equipment related to the application can be equipment which comprises a wireless transceiving function and can provide communication service for users. For example, the end device may be a device in a vehicle-to-outside (V2X) system, a device in a device-to-device (D2D) system, a device in a machine-to-machine/machine-type communications (M2M/MTC) system, and so on. For example, a terminal device may refer to an industrial robot, an industrial automation device, a User Equipment (UE), a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a remote station (remote station), an Access Point (AP), a remote terminal (remote), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), or user equipment (user device), etc. For example, the terminal device may be a mobile phone (or referred to as a "cellular" phone), a computer with a mobile terminal device, a portable, pocket, hand-held, computer-embedded mobile device, and so on. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, session Initiation Protocol (SIP) phones, wireless Local Loop (WLL) stations, personal Digital Assistants (PDAs), and the like. The terminal devices may also include limited devices, such as devices that consume less power, or devices that have limited storage capabilities, or devices that have limited computing capabilities, etc. Examples of information sensing devices include bar codes, radio Frequency Identification (RFID), sensors, global Positioning Systems (GPS), laser scanners, and the like. For example, the terminal device may be a handheld device with wireless communication capability, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a network after 5G or a terminal device in a PLMN network for future evolution, which is not limited in this application.

2) The network device according to the present application may be a device for communicating with a terminal device. In this embodiment of the present application, a network device may be referred to as a Radio Access Network (RAN) device, for example, including AN Access Network (AN) device, such as a base station (e.g., AN access point), which may refer to a device in AN access network that communicates with a wireless terminal device through one or more cells over AN air interface, or for example, a network device in a V2X technology is a Road Side Unit (RSU). The base station may be configured to interconvert received air frames and Internet Protocol (IP) packets as a router between the terminal device and the rest of the access network, which may include an IP network. The RSU may be a fixed infrastructure entity supporting V2X applications and may exchange messages with other entities supporting V2X applications. The network device may also coordinate attribute management for the air interface. For example, the network device may include an evolved Node B (NodeB or eNB or e-NodeB) in a Long Term Evolution (LTE) system or an advanced long term evolution (LTE-a), or may also include a next generation Node B (gNB) in an NR system, or may also include a Centralized Unit (CU) and a Distributed Unit (DU) in a Cloud access network (Cloud RAN) system, which is not limited in the embodiments of the present application.

3) Ultra-reliable and low-latency communications (URLLC) are a class of application scenarios defined by the International Telecommunications Union (ITU) for 5G and future mobile communication systems, which require low latency and high reliability. The specific requirements of low delay are end-to-end 0.5ms delay, air interface information interaction makes a round trip for 1ms delay, and the specific requirements of high reliability are that the block error rate (BLER) reaches 10^ (-5), namely, the correct receiving proportion of the data packet reaches 99.999%.

4) Uplink power control can be performed by combining open-loop power control and closed-loop power control. The uplink channel, for example, PUCCH or PUSCH, and the uplink reference signal, for example, SRS, may all perform uplink power control.

The terminal device may determine the transmission power of the PUCCH channel according to the following formula:

[dBm](ii) a Where b is BWP occupied by PUCCH channel transmission, f is carrier occupied by PUCCH channel transmission, c is serving cell (serving cell) in which the carrier is located, i is transmission opportunity window index, q is transmission opportunity window index, and _u is the PUCCH resource index, q _d Is the reference signal resource index, l is the power control adjustment state, P _PUCCH,b,f,c (i,q _u ,q _d L) denotes the transmit power of the PUCCH channel with cell c carrier f and BWP b, P _CMAX,f,c (i) Represents the maximum transmission power, P, of the terminal equipment on the carrier f of the c cell _{O_PUCCH,b,f,c} (q _u ) Indicating cell c as open loop power of PUCCH channel on carrier f and BWP as b,

the bandwidth of the PUCCH channel (represented by the number of Resource Blocks (RBs)) indicating a cell with c carrier f and BWP b, μ is the subcarrier spacing, μ =0 corresponds to the 15kHz subcarrier spacing, and the relationship between μ and subcarrier spacing is shown in table 1 below, where PL is the number of Resource Blocks (RBs) and PL is the number of subcarriers in the PUCCH channel _b,f,c (q _d ) Path loss, Δ, representing cell c carrier f and BWP b _{F_PUCCH} (F) Offset value, Δ, for different PUCCH formats _TF,b,f,c (i) Compensation for PUCCH transmission using different PUCCH formats for different bits, indicating cell c carrier f and BWP b, g _b,f,c (i, l) represents a closed-loop power control adjustment value (which may be referred to as a closed-loop power control adjustment value for short) with cell c as carrier f and BWP as b, and represents a power control dynamic offset partMay be determined according to a Transmission Power Control (TPC) indication carried in the DCI, and in a scenario where the TPC indicates an accumulation amount, g _b,f,c The calculation formula of (i, l) is as follows:

(referred to as accumulated TPC), ith PUCCH transmission opportunity relative to ith-i ₀ One PUCCH transmitter has one TPC cumulative amount, delta _PUCCH,b,f,c For downlink scheduling (DL grant) signaling, such as closed loop correction coefficient indicated by TPC command field carried in DCI Format 1-0 or DCI Format1-1 or DCI Format2-2, TPC command field and delta _PUCCH,b,f,c The corresponding relation of (d) is detailed in table 2, where the first column in table 2 is the value of the TPC command field, and the second column is the accumulated delta indicated in the scene where the TPC indicates the accumulated amount _PUCCH,b,f,c . Or, in a scenario where TPC indicates an absolute quantity, g _b,f,c The calculation formula of (i, l) is as follows: g _b,f,c (i,l)＝δ _PUCCH,b,f,c (referred to as absolute (absolute) TPC).

TABLE 1

μ	Subcarrier spacing =2 ^μ ·15(kHz)
		0	15
1	30
		2	60
3	120
		4	240

TABLE 2

TPC command field	Cumulative delta _PUCCH,b,f,c [dB]	Absolute delta _PUCCH,b,f,c [dB]
			0	-1	-4
1	0	-1
			2	1	1
3	3	4

The terminal device may determine the transmission power of the PUSCH channel according to the following formula:

[dBm](ii) a Wherein b is BWP occupied by PUSCH channel transmission, f is carrier occupied by PUSCH channel transmission, c is service cell of the carrier, i is transmission opportunity window index, j is PUSCH scheduling mode, q is _d Is the reference signal resource index, l is the power control adjustment state, P _PUSCH,b,f,c (i,j,q _d L) denotes the transmit power of the PUSCH channel with cell c carrier f and BWP b, P _CMAX,f,c (i) Represents the maximum transmission power, P, of the terminal equipment on the carrier f of the c cell _{O_PUSCH,b,f,c} (j) Indicating cell c as open loop power of PUSCH channel on carrier f and BWP as b,

the bandwidth of the PUSCH channel (expressed in RB number) indicating cell c as carrier f and BWP as b, μ is the subcarrier spacing, μ =0 corresponds to the 15kHz subcarrier spacing, and the relationship between μ and subcarrier spacing is shown in table 1, where PL is _b,f,c (q _d ) Indicates the cell is c the path loss on carrier f and BWP b, α _b,f,c (j) Indicating cell c as carrier f and BWP as path loss compensation factor on b,

indicating compensation for different transmission formats, f _b,f,c (i, l) represents a closed-loop power control adjustment value (referred to as a closed-loop power control adjustment value for short) with a cell c carrier f and a BWP b carrier b, represents a power control dynamic offset part, and can be determined according to a TPC indication carried in DCI, and in a scenario of TPC indication accumulation amount, f _b,f,c The calculation formula of (i, l) is as follows:

(referred to as accumulated TPC); or, in a scenario where TPC indicates an absolute quantity, f _b,f,c The calculation formula of (i, l) is as follows: f. of _b,f,c (i,l)＝δ _PUSCH,b,f,c (i, l) (called absolute TPC) for the accumulated TPC ith uplink slot relative to ith-i ₀ One uplink slot has one TPC cumulative quantity, delta _PUSCH,b,f,c Scheduling for uplink(UL grant) signaling, such as closed loop correction factor indicated by TPC command field carried in DCI Format 0-0 or DCI Format 0-1 or DCI Format2-2, TPC command field and delta _PUSCH,b,f,c The correspondence of (d) is detailed in table 3, where the first column in table 3 is the value of the TPC command field, and the second column is the accumulated delta indicated in the scene where the TPC indicates the accumulated amount _PUSCH,b,f,c The third column indicates the absolute delta indicated in the scenario where the TPC indicates the absolute quantity _PUSCH,b,f,c 。

TABLE 3

TPC command field	Cumulative delta _PUSCH,b,f,c [dB]	Absolute delta _PUSCH,b,f,c [dB]
			0	-1	-4
1	0	-1
			2	1	1
3	3	4

The terminal device may determine the SRS transmission power according to the following formula:

where b is the BWP occupied by SRS channel transmission, f is the carrier occupied by SRS channel transmission, c is the serving cell in which the carrier is located, i is the transmission opportunity window index, q is the transmission opportunity window index _s Is SRS resource index, l is power control adjustment state, P _SRS,b,f,c (i,q _s L) denotes the SRS transmit power on cell c carrier f and BWP b, P _CMAX,f,c (i) Denotes the maximum transmission power, P, of the terminal device in the cell with c carriers f _{O_SRS,b,f,c} (q _s ) Denotes cell c as open loop power, M, of SRS channel on carrier f and BWP as b _SRS,b,f,c (i) The bandwidth of the SRS channel (expressed in RB number) is denoted by cell c, carrier f, BWP b, μ is the subcarrier spacing, μ =0 corresponds to the 15kHz subcarrier spacing, the relationship between μ and subcarrier spacing is shown in table 1, PL _b,f,c (q _d ) Path loss, α, indicating cell c as carrier f and BWP as b _SRS,b,f,c (q _s ) Denotes cell as c-Carrier f and BWP as b SRS resource q _s Corresponding path loss compensation factor, h _b,f,c (i) A closed-loop power control adjustment value (referred to as a closed-loop power control adjustment value for short) indicating that the cell is c and the BWP is b, and a power control dynamic offset part, which can be determined according to the TPC indication carried in the DCI, and in the scenario of TPC indication cumulant, h _b,f,c (i) The calculation formula of (a) is as follows:

(referred to as accumulated TPC) for which the ith uplink slot is opposite to the ith-ith ₀ There is one TPC accumulation for each uplink slot. Or, in a scenario where TPC indicates an absolute quantity, h _b,f,c The calculation formula of (i, l) is as follows: h is _b,f,c (i,l)＝δ _SRS,b,f,c (referred to as absolute TPC). Delta _SRS,b,f,c Closed loop correction factor indicated by TPC command field carried in DCI Format 2-3, TPC command field and delta _SRS,b,f,c The details of the corresponding relationship are shown in Table 4, the second in Table 4One column is the value of the TPC command field, and the second column is the accumulated delta indicated in the scene where TPC indicates the accumulated quantity _SRS,b,f,c The third column indicates the absolute delta indicated in the scenario where the TPC indicates the absolute quantity _SRS,b,f,c 。

TABLE 4

TPC command field	Cumulative delta _SRS,b,f,c [dB]	Absolute delta _SRS,b,f,c [dB]
			0	-1	-4
1	0	-1
			2	1	1
3	3	4

The TPC indication is briefly described below. TPC indications can be classified into two categories according to whether they indicate an accumulated amount or an absolute amount. One type is referred to as an accumulated TPC indication (which may also be referred to as an accumulated TPC command field) and the other type is referred to as an absolute TPC indication (which may also be referred to as an absolute TPC command field). In a scenario where the TPC indicates an accumulated amount, the accumulated TPC indication is used to indicate an accumulated closed-loop correction coefficient, and after receiving the indication, the terminal device may calculate the accumulated TPC according to an accumulated TPC calculation formula and the accumulated closed-loop correction coefficient. In a scene that the TPC indicates an absolute quantity, the absolute TPC indication is used for indicating an absolute closed loop correction coefficient, and after receiving the indication, the terminal equipment can calculate the absolute TPC according to an absolute TPC calculation formula and the absolute closed loop correction coefficient. When it is necessary to switch from one TPC mode to another, the network device may semi-statically configure the terminal device through RRC signaling.

In a scenario where the TPC indicates the accumulated amount, the network device may indicate an accumulated closed-loop correction coefficient through an accumulated TPC command field, where the accumulated closed-loop correction coefficient may also be understood as a step value of the power step, which may be referred to as table 2, table 3, or table 4, and may be { -1,0,1,3} db, for example, after receiving the accumulated TPC command field, the terminal device further adjusts the current transmission power based on the last transmission power, and increases one power step with respect to the last power level, that is, increases the accumulated closed-loop correction coefficient. For accumulated TPC, the positive power control of the terminal device may be accumulated until the maximum transmit power is reached, and the positive power control is not accumulated; similarly, the negative power control of the terminal device may be accumulated until a minimum transmit power is reached and the negative power control is no longer accumulated.

In a scenario where the TPC indicates an absolute quantity, the network device may indicate an absolute closed-loop correction coefficient through an absolute TPC command field, where the absolute closed-loop correction coefficient may also be understood as a power compensation value, a compensation set of the power compensation value may refer to table 3 or 4, for example, may be { -4, -1, 4} db, and after receiving the absolute TPC command field, the terminal device independently increases the current transmit power by a power compensation value with respect to a power amplitude that can ensure transmission without distortion, that is, independently increases the absolute closed-loop correction coefficient, and may understand that the transmit power of the absolute TPC is independent of the previously received TPC and only related to the currently received TPC.

Wherein the terminal device may reset the accumulated TPC (e.g., let g (i) =0 for PUCCH; let f (i) =0 for PUSCH) in case of the following event or command trigger:

a. when receiving P _{O_UE_PUSCH,b,f,c} (j) When configuring or reconfiguring;

b. when receiving alpha _b,f,c (j) When configured or reconfigured;

c. when receiving the random access response message;

d. when the cell is switched;

e. when entering or leaving the RRC active state.

5) The terms "system" and "network" in the embodiments of the present application may be used interchangeably. "plurality" means two or more, and other terms are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. Furthermore, for elements (elements) that appear in the singular form "a," an, "and" the, "they are not intended to mean" one or only one "unless the context clearly dictates otherwise, but rather" one or more than one. For example, "a device" means for one or more such devices. Still further, at least one (at least one of a).

In the embodiment of the application, a unidirectional communication link from an access network to a terminal is defined as a downlink, data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called as a downlink direction; the unidirectional communication link from the terminal to the access network is an uplink, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is referred to as an uplink direction.

The resources described in this embodiment may also be referred to as transmission resources, which include one or more of time domain resources, frequency domain resources, and code channel resources, and may be used to carry data or signaling in an uplink communication process or a downlink communication process.

It should be understood that in the embodiment of the present invention, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

The term "connection" in the embodiment of the present application refers to various connection manners such as direct connection or indirect connection, so as to implement communication between devices, which is not limited in this embodiment of the present application.

The "transmission" appearing in the embodiments of the present application refers to a bidirectional transmission, including actions of transmission and/or reception, unless otherwise specified. Specifically, "transmission" in the embodiment of the present application includes transmission of data, reception of data, or both transmission of data and reception of data. Alternatively, the data transmission herein includes uplink and/or downlink data transmission. The data may include channels and/or signals, uplink data transmission, i.e., uplink channel and/or uplink signal transmission, and downlink data transmission, i.e., downlink channel and/or downlink signal transmission.

It should be noted that, in the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or order. For example, "first indication" and "second indication" merely represent two different indications, without precedence and relative importance.

The technical scheme of the application is further described in detail in the following with the accompanying drawings of the specification.

Please refer to fig. 1, which is a diagram illustrating a communication system applicable to an embodiment of the present application. As shown in fig. 1, the terminal 130 may access a wireless network to obtain services of an external network (e.g., the internet) through the wireless network, or may communicate with other devices through the wireless network, such as may communicate with other terminals. The wireless network includes a RAN110 and a CN120, where the RAN110 is used to access the terminal 130 to the wireless network and the CN120 is used to manage the terminal and provide a gateway for communication with an external network. It should be understood that the number of each device in the communication system shown in fig. 1 is only an illustration, and the embodiment of the present application is not limited thereto, and in practical applications, more terminals 130, more RANs 110, and other devices may also be included in the communication system.

The present application does not limit the type of the communication system shown in fig. 1, and may be, for example, an LTE system, an LTE-a system, an NR system, or a future communication system.

The CN120 may include a plurality of CN devices, when the communication system shown in fig. 1 is an NR system, the CN120 may include an AMF entity, an UPF entity, an SMF entity, or the like, and when the communication system shown in fig. 1 is an LTE system, the CN120 may include a Mobility Management Entity (MME), a serving gateway (S-GW), or the like.

Please refer to fig. 2, which is a schematic diagram of a network architecture according to an embodiment of the present application. As shown in fig. 2, the network architecture includes CN equipment and RAN equipment. The RAN device includes a baseband device and a radio frequency device, where the baseband device may be implemented by one node or by multiple nodes, and the radio frequency device may be implemented independently by being pulled away from the baseband device, may also be integrated in the baseband device, or may be partially pulled away and partially integrated in the baseband device. For example, in an LTE system, a RAN equipment (eNB) includes a baseband device and a radio frequency device, where the radio frequency device may be remotely located with respect to the baseband device, e.g., a Remote Radio Unit (RRU) is remotely located with respect to the BBU.

The communication between the RAN equipment and the terminal follows a certain protocol layer structure. For example, the control plane protocol layer structure may include functions of protocol layers such as an RRC layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a physical layer. The user plane protocol layer structure can comprise the functions of protocol layers such as a PDCP layer, an RLC layer, an MAC layer, a physical layer and the like; in one implementation, a Service Data Adaptation Protocol (SDAP) layer may be further included above the PDCP layer.

The RAN equipment can realize the functions of protocol layers such as RRC, PDCP, RLC, MAC and the like by one node; or the functions of these protocol layers may be implemented by multiple nodes; for example, in an evolved structure, a RAN device may include a Centralized Unit (CU) and a Distributed Unit (DU), and a plurality of DUs may be controlled centrally by one CU. As shown in fig. 2, the CU and the DU may be divided according to protocol layers of the radio network, for example, functions of a PDCP layer and above protocol layers are provided in the CU, and functions of protocol layers below the PDCP layer, for example, functions of an RLC layer and a MAC layer, are provided in the DU.

This division of the protocol layers is only an example, and it is also possible to divide the protocol layers at other protocol layers, for example, at the RLC layer, and the functions of the RLC layer and the protocol layers above are set in the CU, and the functions of the protocol layers below the RLC layer are set in the DU; alternatively, the functions are divided into some protocol layers, for example, a part of the functions of the RLC layer and the functions of the protocol layers above the RLC layer are provided in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are provided in the DU. In addition, the processing time may be divided in other manners, for example, by time delay, a function that needs to satisfy the time delay requirement for processing is provided in the DU, and a function that does not need to satisfy the time delay requirement is provided in the CU.

In addition, the radio frequency device may be remote, not placed in the DU, or may be integrated in the DU, or may be partially remote and partially integrated in the DU, which is not limited herein.

With continued reference to fig. 3, with respect to the network architecture shown in fig. 2, the Control Plane (CP) and the User Plane (UP) of the CU may be separated and implemented by being divided into different entities, namely a control plane CU entity (CU-CP entity) and a user plane CU entity (CU-UP entity).

In the above network architecture, the signaling generated by the CU may be transmitted to the terminal through the DU, or the signaling generated by the terminal may be transmitted to the CU through the DU. The DU may pass through the protocol layer encapsulation directly to the terminal or CU without parsing the signaling. In the following embodiments, if transmission of such signaling between the DU and the terminal is involved, then the transmission or reception of signaling by the DU includes such a scenario. For example, the signaling of the RRC or PDCP layer is finally processed as the signaling of the PHY layer to be transmitted to the terminal, or converted from the received signaling of the PHY layer. Under this architecture, the signaling of the RRC or PDCP layer can also be considered as being sent by the DU, or sent by the DU and the radio bearer.

In the above embodiment, the CU may be divided into a network device on the RAN side, and the CU may also be divided into a network device on the CN side, which is not limited herein.

The apparatus in the following embodiments of the present application may be located in a terminal or a network device according to the functions implemented by the apparatus. When the above structure of CU-DU is adopted, the network device may be a CU node, or a DU node, or a RAN device including the CU node and the DU node.

And allowing out-of-order scheduling or out-of-order feedback during eURLLC service transmission. Taking the communication system shown in fig. 1 as an example, the out-of-order scheduling refers to that the PUSCH of the DCI scheduling received after the terminal 130 is transmitted first, and the out-of-order feedback refers to that the feedback PUCCH corresponding to the PDSCH received after the terminal 130 is transmitted first. The following takes out the out-of-order scheduling as an example, and the principle of the out-of-order feedback is similar to the above.

Please refer to fig. 4, which is a schematic diagram illustrating a possible out-of-order scheduling. As shown in fig. 4, terminal 130 receives a Physical Downlink Control Channel (PDCCH) 1 from RAN110 at time 1, and DCI1 is carried on PDCCH1, DCI1 schedules PUSCH1 transmitted at time 4, terminal 130 receives PDCCH2 from RAN110 at time 2, DCI2 is carried on PDCCH2, and DCI2 schedules PUSCH2 transmitted at time 3, as can be seen from fig. 4, PUSCH2 scheduled by DCI2 received after terminal 130 needs to be transmitted before PUSCH1 scheduled by DCI1 received first, that is, out-of-order scheduling occurs. For the accumulated TPC scenario, if only the power control mechanism described in the above 4) is adopted, the terminal 130 needs to determine the power control adjustment value of the PUSCH2 based on the power control adjustment value of the PUSCH1, and after the out-of-order scheduling is introduced, since the PUSCH1 is transmitted after the PUSCH2, some terminals 130 may not be able to determine the power control adjustment value of the PUSCH2 based on the power control adjustment value of the PUSCH1, thereby causing power control errors, and it is seen that if only the power control mechanism described in the above 4) is still adopted after the out-of-order scheduling is introduced, some terminals 130 may be affected in power control. The principle of out-of-order feedback is similar.

The application provides a power control method, which is suitable for a scene of out-of-order scheduling or out-of-order feedback. By adopting the method, after the terminal equipment determines that out-of-order scheduling or out-of-order feedback occurs, a power adjustment value is determined by adopting an absolute TPC mode for the out-of-order transmission channel, or the power adjustment value of the out-of-order transmission channel is reset, or TPC accumulation is carried out by using the power adjustment value of the channel transmitted before the out-of-order transmission channel. The problem of power accumulation in a disorder scheduling or disorder feedback scene is solved, the transmitting power of the terminal equipment is closer to the expectation of the network equipment, the network equipment is convenient to more accurately control the power of the terminal equipment, the system interference can be reduced, and the system throughput is improved.

The method provided by the embodiment of the application can be applied to an NR (passive to interference) system, an LTE-A (long term evolution-advanced) system, an LTE system, a LTE vehicle networking (V2X) system, an NR vehicle networking system, a next generation wireless local area network system or an Integrated Access Backhaul (IAB) system or other novel wireless communication systems, and the application is not limited to the system.

Please refer to fig. 5, which is a flowchart illustrating an implementation of a power control method according to an embodiment of the present disclosure. The method may be performed by a terminal device or a communication apparatus (e.g., a chip system) capable of supporting the terminal device to implement the method, and the method is described as being performed by the terminal device in this application. The method may be applied to the network architectures shown in fig. 1, fig. 2, or fig. 3, and may of course be applied to other network architectures, which are not limited in this application. When the method is applied to the network architecture shown in fig. 1, the network device involved in the method may be RAN110 in fig. 1, and the terminal device involved in the method may be terminal 130 in fig. 1. Referring to fig. 5, the method may include the following process flow.

Step 101: the terminal equipment receives a first signaling from the network equipment at a first moment, and the first signaling indicates the resource of a first channel.

In this application, the first signaling may be DCI and/or RRC signaling, and the first signaling is hereinafter described as DCI. The first signaling may indicate the resource of the first channel, and the first signaling may indicate a time domain resource and/or a frequency domain resource for transmission of the first channel, indicate a power adjustment parameter for transmission of the first channel, and the like.

Step 102: the terminal device receives a second signaling from the network device at a second time, the second signaling indicates resources of a second channel, and the second signaling may include a first transmission power control indication, where the first transmission power control indication is used to indicate a first correction value of the second channel.

In this application, the second signaling may be DCI and/or RRC signaling, and the second signaling is hereinafter described as DCI as an example. The second signaling may indicate resources of the second channel, which may include the second signaling indicating time domain resources and/or frequency domain resources for the second channel transmission, indicating power adjustment parameters for the second channel transmission, and so on.

In this application, a channel is not only a narrow meaning of a channel, but is extended to a channel and a signal, that is, a channel in this application may include a signal as well as a narrow meaning of a channel. The first channel and the second channel may be PUSCHs, or the first channel and the second channel may be PUCCHs, or the first channel and the second channel may be SRSs.

In the present application, the first transmission power control indication may be an accumulated TPC indication or an absolute TPC indication. The first correction value may be a value given by following an existing table, or may have a new table, and the present invention is not limited thereto. When the first transmission power control indication is an accumulated TPC indication, the first correction value indicated by the first transmission power control indication is an accumulated correction value, which may be understood as an accumulated closed loop correction factor as described in 4) above. For example, when the second channel is PUCCH, the accumulated closed loop correction factor may be, for example, accumulated δ in table 2 or table 5 _PUCCH,b,f,c . For another example, when the second channel is PUSCH, the cumulative closed loop correction factor may be, for example, cumulative δ in table 3 or table 6 _PUSCH,b,f,c . For another example, when the second channel is the SRS, the cumulative closed-loop correction factor may be, for example, the cumulative δ in table 4 or table 7 _SRS,b,f,c . When the first indication of transmission power control is an absolute TPC indication, the first correction value indicated by the first indication of transmission power control is an absolute correction value, which may be understood as the absolute closed loop correction factor (also referred to as absolute closed loop correction factor) introduced in 4) aboveMay be described as absolute TPC). For example, when the second channel is PUCCH, the absolute closed-loop correction coefficient may be, for example, absolute δ in table 2 or table 5 _PUCCH,b,f,c . For another example, when the second channel is PUSCH, the absolute closed loop correction coefficient may be, for example, absolute δ in table 3 or table 6 _PUSCH,b,f,c . For another example, when the second channel is the SRS, the absolute closed-loop correction factor may be, for example, the absolute δ in table 4 or table 7 _SRS,b,f,c 。

TABLE 5

TPC command field	Cumulative delta _PUCCH,b,f,c [dB]	Absolute delta _PUCCH,b,f,c [dB]
			0	-1	-4
1	0	-1
			2	3	2
3	5	5

TABLE 6

TPC command field	Cumulative delta _PUSCH,b,f,c [dB]	Absolute delta _PUSCH,b,f,c [dB]
			0	-2	-5
1	0	-2
			2	2	1
3	4	4

TABLE 7

TPC command field	Cumulative delta _SRS,b,f,c [dB]	Absolute delta _SRS,b,f,c [dB]
			0	-1	-2
1	0	-1
			2	1	1
3	2	2

In one possible example, the second signaling may further include a first resource indication, where the first resource indication is used to indicate time domain resources for transmitting the second channel. For example, the first resource indication may indicate a start time and an end time for transmitting the second channel, or indicate a start time and a duration used for transmitting the second channel, or indicate an end time and a duration used for transmitting the second channel, and the like.

In one possible example, a second transmission power control indication may be included in the first signaling, the second transmission power control indication indicating a second correction value for the first channel. In the present application, the second transmission power control indication may be an accumulated TPC indication or an absolute TPC indication. The second correction value may be a value given by using an existing table, or may have a new table, and the present invention is not limited thereto. When the second transmission power control indication is an accumulated TPC indication, the second correction value indicated by the second transmission power control indication is an accumulated correction value, which may be understood as the accumulated closed loop correction factor described in 4) above. For example, when the first channel is PUCCH, the accumulated closed-loop correction factor may be, for example, accumulated δ in table 2 or table 5 _PUCCH,b,f,c . For another example, whenWhen a channel is PUSCH, the cumulative closed loop correction factor may be, for example, the cumulative delta in Table 3 or Table 6 _PUSCH,b,f,c . For another example, when the first channel is the SRS, the cumulative closed-loop correction factor may be, for example, the cumulative δ in table 4 or table 7 _SRS,b,f,c . When the second transmission power control indication is an absolute TPC indication, the second correction value indicated by the second transmission power control indication is an absolute correction value, which may be understood as the absolute closed loop correction coefficient (which may also be described as absolute TPC) introduced in 4) above. For example, when the first channel is PUCCH, the absolute closed loop correction coefficient may be, for example, the accumulated δ in table 2 or table 5 _PUCCH,b,f,c . For another example, when the first channel is PUSCH, the absolute closed loop correction factor may be, for example, absolute δ in table 3 or table 6 _PUSCH,b,f,c . For another example, when the first channel is the SRS, the absolute closed-loop correction factor may be, for example, the absolute δ in table 4 or table 7 _SRS,b,f,c . Optionally, the first signaling may further include a second resource indication, where the second resource indication is used to indicate time domain resources for transmitting the first channel. For example, the second resource indication may indicate a start time and an end time for transmitting the first channel, or indicate a start time and a used time length for transmitting the first channel, or indicate an end time and a used time length for transmitting the first channel, and the like.

In this application, the second time is after the first time, and the second channel is sent before the first channel, that is, out-of-order scheduling or out-of-order feedback occurs. It should be noted that, in the present application, the second channel is before the first channel, and includes a case where the second channel is completely before the first channel, that is, the second channel and the first channel do not overlap, and includes a case where the transmission time of the second channel is before the transmission time of the first channel, but the first channel and the second channel overlap.

The second channel may be determined by the terminal device itself before the first channel, or may be notified to the terminal device by the network device. For example, taking the terminal device itself as an example, the terminal device may determine the transmission time of the first channel and the transmission time of the second channel according to the first resource indication and the second resource indication, and when it is determined that the transmission time of the second channel is before the transmission time of the first channel, determine that the second channel is transmitted before the first channel. For example, taking the network device notifying the terminal device as an example, if the network device learns in advance that the second channel scheduled by the second signaling is transmitted before the first channel, the network device may send a disorder indication to the terminal device, indicate that the first channel and the second channel of the terminal device are transmitted in disorder, or indicate that the second channel is transmitted before the first channel. Optionally, the out-of-order indication may be included in the second signaling, or may be sent through a new signaling, which is not limited in this application.

In this application, after the terminal device determines that the out-of-order scheduling or the out-of-order feedback occurs, the power adjustment value of the second channel may be determined in any manner provided in steps 103a to 103c. The power adjustment value of a channel referred to in this application may be understood as a closed-loop power control adjustment value, or a closed-loop power adjustment value, for example, hereinafter, the power adjustment value of a second channel may be a closed-loop power adjustment value of a second channel, and the power adjustment value of a first channel may be a closed-loop power adjustment value of a first channel.

Step 103a: the terminal device uses the first correction value as a power adjustment value of the second channel. In an implementation based on step 103a, the first transmission power control indication may be an absolute TPC indication, and the first correction value may be an absolute closed loop correction coefficient (which may also be described as absolute TPC) introduced in the above 4). The terminal device uses the first correction value indicated by the first transmission power control indication as the power adjustment value of the second channel, which can be understood as that the terminal device uses absolute TPC for the second channel. By adopting the method, the closed loop power control adjustment value is determined by adopting the calculation formula of the absolute TPC for the channel of the out-of-order transmission, so that the problem of power accumulation in the out-of-order transmission can be solved, and the influence on other channels can be reduced.

Step 103b: the terminal device resets the power adjustment value of the second channel. The power adjustment value may be a TPC accumulated amount of accumulated (accumulated) TPC introduced in 4) above. Wherein resetting the power adjustment value of the second channel may be understood as making the TPC cumulative amount of the cumulative TPC equal to 0. By adopting the method, the power adjustment value of the channel in the out-of-order transmission is set to be 0, so that the problem of power accumulation in the out-of-order transmission can be solved, and the influence on other channels can be reduced.

Step 103c: and the terminal equipment takes the sum of the first correction value and the power adjustment value of a third channel as the power adjustment value of the second channel, wherein the third channel is a channel transmitted before the second channel. The power adjustment value may be understood as a TPC cumulative amount of accumulated TPC. By adopting the method, the power adjustment value of the channel transmitted out of order is calculated based on the power adjustment value of the channel transmitted before the channel, so that the transmitting power of the terminal equipment is closer to the expectation of the network equipment, and the network equipment can more accurately control the power of the terminal equipment.

In a possible example, before performing step 103c, the terminal device may determine a transmission time of the second channel according to the first resource indication, and if it is determined that the time interval between the reception time of the first signaling and the transmission time of the second channel is greater than or equal to the first processing delay, perform step 103c. In this way, the terminal device may perform the method in step 103c only when determining that it is likely to determine the power adjustment value of the second channel based on the power adjustment value of the third channel, so as to perform power control on the terminal device more accurately.

In another possible example, before performing step 103a or step 103b, the terminal device may determine a transmission time of the second channel according to the first resource indication, and if it is determined that the time interval between the reception time of the first signaling and the transmission time of the second channel is smaller than the first processing delay, perform step 103a or step 103b. In this way, the terminal device may perform the method in step 103a or step 103b when it is determined that it is not time to determine the power adjustment value of the second channel based on the power adjustment value of the previous channel, so as to more accurately perform power control on the terminal device.

In this application, the first processing delay may be understood as a processing delay of the second channel, and the processing delay of the second channel may be a channel preparation time predefined by a protocol. It should be noted that the processing delay of a channel is related to the type of the channel, and different types of channels may correspond to different processing delays or channel preparation times. For example, when the second channel is the PUSCH, the channel preparation time of the second channel may be referred to table 8 or table 9 below, where table 8 and table 9 show PUSCH preparation times of two types of terminals, both related to subcarrier intervals, and different subcarrier intervals may correspond to different PUSCH preparation times.

TABLE 8

μ	Subcarrier spacing =2 ^μ ·15(kHz)	PUSCH preparation time N ₂ [ unit: symbol]
			0	15	10
1	30	12
			2	60	23
3	120	36

TABLE 9

μ	Subcarrier spacing =2 ^μ ·15(kHz)	PUSCH preparation time N ₂ [ unit: symbol(s)]
			0	15	5
1	30	5.5
			2	60	For low frequency FR1, N2 takes a value of 11

For another example, when the second channel is the PUCCH, the channel preparation time of the second channel may be determined by the processing time of the terminal for processing the PDSCH shown in table 10 or table 11 below, where the processing time of the terminal for processing the PDSCH may also be described as the PDSCH processing time. The PUCCH channel preparation time is positively correlated with the PDSCH processing time, i.e., the longer the PDSCH processing time, the longer the PUCCH channel preparation time, and conversely, the shorter the PDSCH processing time, the shorter the PUCCH channel preparation time. The PDSCH processing times shown in tables 10 and 11 are related to the subcarrier spacing, and different subcarrier spacings may correspond to different PDSCH processing times and different PUCCH preparation times, and it is understood that the PUCCH preparation times are also related to the subcarrier spacing.

Watch 10

μ	Subcarrier spacing =2 ^μ ·15(kHz)	PDSCH processing time N ₁ [ unit: symbol]
			0	15	8
1	30	10
			2	60	17
3	120	20

TABLE 11

μ	Subcarrier spacing =2 ^μ ·15(kHz)	PDSCH processing time N ₁ [ unit: symbol]
			0	15	3
1	30	4.5
			2	60	For low frequency FR1, N1 takes a value of 9

It should be noted that, in the present application, step 103a, step 103b, and step 103c are alternatively executed, that is, the terminal device executes either step 103a, step 103b, or step 103c.

By adopting the method, the problem of power accumulation in the out-of-order scheduling or out-of-order feedback scene is solved, the transmitting power of the terminal equipment is closer to the expectation of the network equipment, the network equipment can more accurately control the power of the terminal equipment, the system interference can be reduced, and the system throughput is improved.

In the present application, what manner is adopted by the terminal device to perform power control in steps 103a to 103c may be predefined by a protocol, or may be indicated to the terminal device by the network device. Illustratively, taking the protocol as an example, the protocol may predefine that when out-of-order scheduling or out-of-order feedback occurs, the power adjustment value of the second channel is determined in the manner of step 103a, or the power adjustment value of the second channel is determined in the manner of step 103b, or the power adjustment value of the second channel is determined in the manner of step 103c. Illustratively, taking the indication by the network device as an example, the terminal device receives a first indication from the network device before determining to execute any one of the above steps 103a to 103c, where the first indication is used to indicate the second channel to perform power control, and after receiving the first indication from the network device, the terminal device determines which of the above steps 103a to 103c is to be executed according to the first indication. Optionally, the first indication may be sent in the second signaling, or may be sent using a new signaling.

The mode of the second channel power control indicated by the first indication includes any one of the following:

item 1: and taking the first correction value as a power adjustment value of the second channel.

Item 2: the power adjustment value of the second channel is reset.

Item 3: and taking the sum of the first correction value and the power adjustment value of the third channel as the power adjustment value of the second channel.

In one possible example, the terminal device supports power control of the second channel using any of the 3 above. In this example, the network device may instruct the terminal device which of the 3 items described above to use for power control of the second channel by a first indication comprising at least two bits. For example, the network device and the terminal device may specify that the item 1 is indicated to perform power control on the second channel when the value of two bits included in the first indication is 00, specify that the item 2 is used to perform power control on the second channel when the value of two bits included in the first indication is 01, and specify that the item 3 is used to perform power control on the second channel when the value of two bits included in the first indication is 10, which is only an example, and may also use other specifying manners to instruct the terminal device to use which of the items 3 to perform power control on the second channel.

In another possible example, the terminal device supports power control of the second channel using any two of the 3 items above. In this example, the network device may instruct the terminal device which of the two items to use for power control of the second channel by a first indication comprising at least one bit. For example, taking the example that the terminal device supports the items 1 and 2, the network device and the terminal device may instruct to perform power control on the second channel by using the item 1 when a value of one bit included in the first indication is 0, instruct to perform power control on the second channel by using the item 2 when the value of one bit included in the first indication is 1, where the convention is merely an example, and may also instruct the terminal device to perform power control on the second channel by using any one of the items 1 and 2 by using another convention. For another example, taking the terminal device supporting the above items 1 and 3 as an example, the network device and the terminal device may instruct, when a value of one bit included in the first indication is 0, to perform power control on the second channel by using the item 1, and instruct, when the value of one bit included in the first indication is 1, to perform power control on the second channel by using the item 3, where the convention is merely an example, and may also instruct, by using another convention, the terminal device to perform power control on the second channel by using any one of the items 1 and 3. For another example, taking the terminal device supports the above items 2 and 3 as an example, the network device and the terminal device may instruct, when a value of one bit included in the first indication is 0, to perform power control on the second channel by using the item 2, and instruct, when a value of one bit included in the first indication is 1, to perform power control on the second channel by using the item 3, where the convention is only an example, and other convention manners may also be used to instruct the terminal device to perform power control on the second channel by using any one of the items 2 and 3.

In yet another possible example, the terminal device supports power control of the second channel only with one of the 3 items above. In this example, the network device may instruct the terminal device to power control the second channel using one of the 3 items by a first indication comprising at least one bit. For example, taking the example that the terminal device only supports item 1 above, the network device and the terminal device may specify that the terminal device is instructed to perform power control on the second channel by using item 1 when a value of one bit included in the first indication is 1. For another example, taking the terminal device only supports item 2 above as an example, the network device and the terminal device may specify that the terminal device is instructed to perform power control on the second channel by using item 2 when a value of one bit included in the first indication is 1. For another example, taking the terminal device only supports item 3 above as an example, the network device and the terminal device may specify that the terminal device is instructed to perform power control on the second channel by using item 3 when a value of one bit included in the first indication is 1.

How the terminal device determines the power adjustment value of the second channel is mainly described above, and how the terminal device determines the power adjustment value of the first channel is described in detail below.

In a first possible implementation manner, the terminal device may receive, at a third time, third signaling from the network device, where the third signaling is used to indicate resources of a third channel, and the third time is before the first time, and the terminal device may use a sum of the second correction value and a power adjustment value of the third channel as the power adjustment value of the first channel. In this application, the third signaling may be DCI or RRC signaling, and the third signaling is taken as DCI for illustration herein. The third signaling indicating the resources of the third channel may include the third signaling indicating time domain resources and/or frequency domain resources for the third channel transmission, indicating power adjustment parameters for the third channel transmission, etc. In this implementation, the power adjustment value of the first channel transmitted out-of-order is calculated based on the power adjustment value of the channel transmitted before the first channel, so that the transmission power of the terminal device can be closer to the expectation of the network device, and the network device can perform power control on the terminal device more accurately.

In a second possible implementation manner, the terminal device uses a second correction value indicated by the second transmission power control indication as the power adjustment value of the first channel. In such an implementation, the second transmit power control indication may be an absolute TPC indication and the second correction value may be an absolute TPC. The terminal device uses the second correction value indicated by the second transmission power control instruction as the power adjustment value of the first channel, which may be understood as that the terminal device applies absolute TPC to the first channel. By adopting the method, the closed loop power control adjustment value is determined by adopting the calculation formula of the absolute TPC for the first channel of the out-of-order transmission, so that the problem of power accumulation in the out-of-order transmission can be solved, and the influence on other channels can be reduced.

In a third possible implementation manner, the terminal device resets the power adjustment value of the first channel. The power adjustment value may be understood as a TPC cumulative amount of accumulated TPC. Resetting the power adjustment value of the first channel may be understood as making the TPC accumulation amount of the accumulated TPC equal to 0. By adopting the method, the power adjustment value of the first channel of the out-of-order transmission is set to be 0, so that the problem of power accumulation in the out-of-order transmission can be solved, and the influence on other channels can be reduced.

In this application, the terminal device may execute the first to the third possible implementation manners described above when it is determined that a certain condition is satisfied. In one possible example, the terminal device may determine a sending time of the first channel according to the second resource indication, and execute the first to three possible implementation manners when determining that a time interval between a receiving time of the second signaling and the sending time of the first channel is smaller than the second processing delay. Wherein, the second processing delay may be understood as the processing delay of the first channel, and the processing delay of the first channel may be a channel preparation time predefined by the protocol. It should be noted that the processing delay of a channel is related to the type of the channel, and different processing delays or channel preparation times may be defined for different types of channels. For example, when the first channel is the PUSCH, the channel preparation time of the first channel may be referred to table 8 or table 9 described above.

In a fourth possible implementation manner, the terminal device may determine a sending time of the first channel according to the second resource indication, and when a time interval between the receiving time of the second signaling and the sending time of the first channel is determined to be greater than or equal to the second processing delay, take a sum of the second correction value and the power adjustment value of the second channel as the power adjustment value of the first channel. By adopting the method, the terminal equipment calculates the power adjustment value of the first channel based on the power adjustment value of the second channel under the condition that the time interval between the receiving time of the second signaling and the sending time of the first channel is determined to be larger than or equal to the processing time delay of the first channel, so that the transmitting power of the terminal equipment is closer to the expectation of the network equipment, and the network equipment can more accurately control the power of the terminal equipment.

In this application, the terminal device may determine the power adjustment value of the first channel by using any one of the above possible implementations. The power control in the first possible implementation manner to the fourth possible implementation manner may be performed by a protocol defined in advance, or may be indicated to the terminal device by the network device.

For example, the protocol may be predefined to determine the power adjustment value of the first channel in a first possible implementation manner, or determine the power adjustment value of the first channel in a second possible implementation manner, or determine the power adjustment value of the first channel in a third possible implementation manner, or determine the power adjustment value of the first channel in a fourth possible implementation manner, when out-of-order scheduling or out-of-order feedback occurs.

For example, taking the network device as an example, the terminal device receives a second indication from the network device before determining to execute any one of the first possible implementation manner to the fourth possible implementation manner, where the second indication is used to indicate a manner of performing power control on the first channel, and after receiving the second indication from the network device, the terminal device determines which one of the first possible implementation manner to the fourth possible implementation manner to execute according to the second indication. Optionally, the second indication may be carried or included in the first signaling, or may be sent using a new signaling.

Wherein the manner of power control of the first channel indicated by the second indication includes any one of:

item 1: and using the second correction value as a power adjustment value of the first channel.

Item 2: the power adjustment value for the first channel is reset.

Item 3: and taking the sum of the second correction value and the power adjustment value of a third channel as the power adjustment value of the first channel, wherein the third channel is a channel transmitted before the second channel.

Item 4: and taking the sum of the second correction value and the power adjustment value of the second channel as the power adjustment value of the first channel.

In one possible example, the terminal device supports power control of the first channel using any one of the 4 above. In this example, the network device may instruct the terminal device which of the 4 items described above to use for power control of the first channel by a second indication comprising at least two bits. For example, the network device and the terminal device may specify that the item 1 is indicated to perform power control on the first channel when the value of two bits included in the second indication is 00, the item 2 is indicated to perform power control on the first channel when the value of two bits included in the second indication is 01, the item 3 is indicated to perform power control on the first channel when the value of two bits included in the second indication is 10, and the item 4 is indicated to perform power control on the first channel when the value of two bits included in the second indication is 11, which convention is only an example, or may also use another convention to instruct the terminal device to perform power control on the first channel by using which of the above items 4.

In another possible example, the terminal device supports power control of the first channel using any 3 of the 4 items. In this example, the network device may instruct the terminal device to use which of any 3 items above to power control the first channel by a second indication comprising at least two bits. For example, taking the terminal device supporting the above items 1, 2, and 3 as an example, the network device and the terminal device may instruct to perform power control on the first channel by using the item 1 when the value of two bits included in the second indication is 00, instruct to perform power control on the first channel by using the item 2 when the value of two bits included in the second indication is 01, and instruct to perform power control on the first channel by using the item 3 when the value of two bits included in the second indication is 10, where the convention is merely an example, and may also instruct the terminal device to perform power control on the first channel by using any of the items 1, 2, and 3 in another convention manner. When the terminal device supports the items 1, 2, and 4, or supports the items 2, 3, and 4, or supports the items 1,3, and 4, the indication manner is similar to the above example, and is not described again.

In another possible example, the terminal device supports power control of the first channel using any two of the 4 items described above. In this example, the network device may instruct the terminal device to power control the first channel using which of the two items by including a second indication of at least one bit. For example, taking the example that the terminal device supports the items 1 and 2, the network device and the terminal device may specify that the item 1 is used to perform power control on the first channel when the value of one bit included in the second indication is 0, and specify that the item 2 is used to perform power control on the first channel when the value of one bit included in the second indication is 1, where the specification is merely an example. For another example, taking the terminal device supports the above items 1 and 4 as an example, the network device and the terminal device may instruct to perform power control on the first channel by using the item 1 when a value of one bit included in the second indication is 0, and instruct to perform power control on the first channel by using the item 4 when the value of one bit included in the second indication is 1, where the convention is only an example. For another example, taking the terminal device supporting the above items 2 and 4 as an example, the network device and the terminal device may specify that the item 2 is used to perform power control on the first channel when a value of one bit included in the second indication is 0, and specify that the item 4 is used to perform power control on the first channel when the value of one bit included in the second indication is 1, where the specification is only an example. When the terminal device supports item 1 and item 3, or item 2 and item 3, or item 3 and item 4, the indication manner is similar to the above example, and is not described again.

In yet another possible example, the terminal device supports power control of the first channel only with one of the 4 items above. In this example, the network device may instruct the terminal device to power control the first channel using one of the above 4 items by a second indication comprising at least one bit. For example, taking the example that the terminal device only supports item 1 above, the network device and the terminal device may specify that the terminal device is instructed to perform power control on the first channel by using item 1 when a value of one bit included in the second indication is 1. For another example, taking the example that the terminal device only supports item 2 above, the network device and the terminal device may instruct the terminal device to perform power control on the first channel by using item 2 when a value of one bit included in the second indication is 1. For another example, taking that the terminal device only supports item 3 above as an example, the network device and the terminal device may specify that the terminal device is instructed to perform power control on the first channel by using item 3 when a value of one bit included in the second indication is 1. For another example, taking the example that the terminal device only supports item 4 above, the network device and the terminal device may instruct the terminal device to perform power control on the first channel by using item 4 when a value of one bit included in the second indication is 1.

In this application, the above-mentioned multiple ways of determining the power adjustment value of the second channel may be combined with the multiple ways of determining the power adjustment value of the first channel at will. For example, the terminal device may determine the power adjustment value of the second channel in the manner in step 103a, and may determine the power adjustment value of the first channel in the first possible implementation manner described above. For another example, the terminal device may determine the power adjustment value of the second channel in the manner in step 103c, and may determine the power adjustment value of the first channel in the fourth possible implementation manner described above. For another example, the terminal device may determine the power adjustment value of the second channel in the manner in step 103b, and may determine the power adjustment value of the first channel in the fourth possible implementation manner described above. For another example, the terminal device may determine the power adjustment value of the second channel in the manner in step 103c, and may determine the power adjustment value of the first channel in the third possible implementation manner described above.

In this application, after the UE determines that out-of-order scheduling occurs, the first correction value or the second correction value may use a new TPC table to interpret the TPC command field. For example for PUSCH, the TPC command field is interpreted using table 6. The values in tables 5-7 are exemplary only and not intended to be limiting.

The above process is described in detail below in several complete examples.

Example one:

please refer to fig. 6a to fig. 6e, which are schematic diagrams illustrating a flow of another power control method provided in the present application, where in fig. 6a to fig. 6e, a network device is taken as a gNB, a terminal device is taken as a UE, a first channel, a second channel, and a third channel are taken as PUSCH channels, and a first signaling, a second signaling, and a third signaling are taken as DCI, which are taken as examples to schematically illustrate an accumulated TPC scenario. As shown in fig. 6a to 6e, the UE receives PDCCH1 from the gNB at time 1, PDCCH1 carries DCI1, DCI1 schedules PUSCH1 transmitted at time 4, the UE receives PDCCH2 from the gNB at time 2, PDCCH2 carries DCI2, and DCI2 schedules PUSCH2 transmitted at time 3, as can be seen from fig. 6a to 6e, PUSCH2 scheduled by DCI2 received after the UE needs to be transmitted before PUSCH1 scheduled by DCI1 received first, that is, out-of-order scheduling occurs. It should be noted that fig. 6 b-6 e illustrate an example where PUSCH2 completely precedes PUSCH1, and in practice, sending PUSCH2 before PUSCH1 may further include sending PUSCH2 before PUSCH1, but there is an overlapping case between PUSCH1 and PUSCH2, and the method of the present application may still be used for such a case.

After the UE determines that out-of-order scheduling occurs, comparing the time interval between DCI2 and PUSCH1 with the processing delay of the UE for PUSCH1, if the time interval between DCI2 and PUSCH1 is smaller than the processing delay of the UE for PUSCH1, it indicates that the UE may not be able to calculate the closed-loop power adjustment value of PUSCH1 according to the closed-loop power adjustment value of PUSCH2, and the UE may not be able to calculate the power of PUSCH1 according to the power of PUSCH2, and if the UE determines that the time interval between DCI2 and PUSCH1 is smaller than the processing delay of PUSCH1 by the UE, power accumulation may be performed by using any one of the manners in fig. 6 b-6 d; if the time interval between DCI2 and PUSCH1 is greater than or equal to the processing delay of the UE on PUSCH1, it indicates that the UE has to calculate the closed-loop power adjustment value of PUSCH1 according to the closed-loop power adjustment value of PUSCH2, and after the UE determines that the time interval between DCI2 and PUSCH1 is greater than or equal to the processing delay of the UE on PUSCH1, power accumulation may be performed in the manner in fig. 6 e.

As shown in fig. 6b, for the first process, the UE may perform closed-loop power accumulation on PUSCH1 based on the closed-loop power adjustment value of PUSCH 0: f. of _PUSCH1 ＝f _PUSCH0 +TPC _DCI1 (ii) a Wherein, f _PUSCH1 Closed loop power adjustment value, f, representing PUSCH1 _PUSCH0 Indicating closed loop power adjustment value, TPC, of PUSCH0 _DCI1 A correction value representing PUSCH1 indicated by TPC included in DCI 1; and, the power adjustment value of PUSCH2 may be determined in the manner of absolute TPC: f. of _PUSCH2 ＝TPC _DCI2 (ii) a Wherein f is _PUSCH2 Indicating closed loop power adjustment value, TPC, of PUSCH2 _DCI2 Denotes a correction value of PUSCH2 indicated by TPC included in DCI2, and hereinafter the meaning of each parameter is the same, and is not described in detail. It is understood that, at this time, the TPC indication included in DCI2 is an absolute TPC indication, and the correction value indicated by DCI2 is an absolute TPC. It should be noted that, since the TPC is cumulative or absolute configured through RRC, for example, RRC is configured as cumulative TPC, the cumulative TPC is used before RRC reconfiguration, and cannot be converted to absolute TPC in the middle, since the scenario of this example is a cumulative TPC scenario, in order to enable the UE to determine the power adjustment value of PUSCH2 by using absolute TPC, the gNB may add 1 bit in DCI2 sent to the UE for indicating PUSCH2 to use absolute TPC.

As shown in fig. 6c, for the second process, the UE may determine the power adjustment value of PUSCH1 by means of absolute TPC: f. of _PUSCH1 ＝TPC _DCI1 (ii) a It can be understood that, at this time, the TPC indication included in the DCI1 is an absolute TPC indication, and at this time, the correction value indicated by the DCI1 is an absolute TPC; and, when determining that closed-loop power accumulation is performed on the PUSCH2 based on the closed-loop power adjustment value of the PUSCH0, the UE may perform closed-loop power accumulation on the PUSCH2 based on the closed-loop power adjustment value of the PUSCH 0: f. of _PUSCH2 ＝f _PUSCH0 +TPC _DCI2 . Optionally, the gNB may add 1 bit to DCI1 sent to the UE to indicate that PUSCH2 uses absolute TPC.

As shown in fig. 6d, for the third process, the UE may perform closed-loop power accumulation on PUSCH1 based on the closed-loop power adjustment value of PUSCH 0: f. of _PUSCH1 ＝f _PUSCH0 +TPC _DCI1 (ii) a And, the UE may perform closed loop power accumulation on PUSCH2 based on the PUS when determining that closed loop power adjustment value based on PUSCH0 is reachedClosed loop power accumulation is carried out on the PUSCH2 by the closed loop power adjustment value of CH 0: f. of _PUSCH2 ＝f _PUSCH0 +TPC _DCI2 。

As shown in fig. 6e, the UE may perform closed loop power accumulation on PUSCH1 based on the closed loop power adjustment value of PUSCH 2: f. of _PUSCH1 ＝f _PUSCH2 +TPC _DCI1 (ii) a And, when determining that closed-loop power accumulation is performed on the PUSCH2 based on the closed-loop power adjustment value of the PUSCH0, the UE may perform closed-loop power accumulation on the PUSCH2 based on the closed-loop power adjustment value of the PUSCH 0: f. of _PUSCH2 ＝f _PUSCH0 +TPC _DCI2 。

It is to be understood that the first channel, the second channel, and the third channel are PUSCHs in the example one for illustration, and the method in the example one is also applicable to the case where the first channel, the second channel, and the third channel are PUCCHs or SRSs. For example, if the first channel, the second channel, and the third channel are PUCCHs, fig. 6a is changed to fig. 6f, and fig. 6b is changed to fig. 6g. For another example, if the first channel, the second channel, and the third channel are SRS, fig. 6b is changed to fig. 6h accordingly.

Example two:

please refer to fig. 7 a-7 b, which are schematic diagrams illustrating a flowchart of another power control method provided by the present application, where fig. 7 a-7 b are the same as those in fig. 6 a-6 e, and are not repeated herein, and differences between fig. 7 a-7 b and fig. 6 a-6 e are mainly described below.

After the UE determines that out-of-order scheduling occurs, comparing the time interval between DCI2 and PUSCH1 with the processing delay of the UE for PUSCH1, if the time interval between DCI2 and PUSCH1 is smaller than the processing delay of the UE for PUSCH1, it is described that the UE may not be able to calculate the closed-loop power adjustment value of PUSCH1 according to the closed-loop power adjustment value of PUSCH2, so that the UE may not be able to calculate the power of PUSCH1 according to the power of PUSCH2, and if the UE determines that the time interval between DCI2 and PUSCH1 is smaller than the processing delay of PUSCH1 by the UE, power accumulation may be performed in the manner in fig. 7 a; if the time interval between DCI2 and PUSCH1 is greater than or equal to the processing delay of the UE on PUSCH1, which means that the UE has time to calculate the closed-loop power adjustment value of PUSCH1 according to the closed-loop power adjustment value of PUSCH2, after the UE determines that the time interval between DCI2 and PUSCH1 is greater than or equal to the processing delay of the UE on PUSCH1, the method in fig. 7b may be used for power accumulation.

As shown in fig. 7a, the UE may reset the closed loop power adjustment value in the transmit power of PUSCH 1: f. of _PUSCH1 =0; and, when determining that closed-loop power accumulation is performed on the PUSCH2 based on the closed-loop power adjustment value of the PUSCH0, the UE may perform closed-loop power accumulation on the PUSCH2 based on the closed-loop power adjustment value of the PUSCH 0: f. of _PUSCH2 ＝f _PUSCH0 +TPC _DCI2 . Optionally, the gNB may add 1 bit in DCI1 sent to the UE for instructing to reset the closed loop power adjustment value of PUSCH 1. Closed loop power adjustment value f in subsequent PUSCH3 transmit power in FIG. 7a _PUSCH3 Closed loop power adjustment value f in transmission power of PUSCH1 _PUSCH1 And accumulating on the basis.

As shown in fig. 7b, the UE may reset the closed loop power adjustment value in the transmit power of PUSCH 2: f. of _PUSCH2 =0; and, closed loop power accumulation is performed on the PUSCH1 based on the closed loop power adjustment value of the PUSCH 2: f. of _PUSCH1 ＝f _PUSCH2 +TPC _DCI1 . Optionally, the gNB may add 1 bit in DCI2 sent to the UE for instructing to reset the closed loop power adjustment value of PUSCH 2. Closed loop power adjustment value f in subsequent PUSCH3 transmit power in FIG. 7b _PUSCH3 Closed loop power adjustment value f in transmission power of PUSCH1 _PUSCH1 And accumulating on the basis.

If the UE can support the schemes of example one and example two simultaneously, the gNB may indicate which scheme the UE uses by at least one of the following messages: RRC signaling, MAC signaling, broadcast messages, system messages, or physical layer signaling. The RRC signaling may be an RRC Information Element (IE). The MAC signaling may be a MAC Control Element (CE). The broadcast message may be a Master Information Block (MIB). The system message may be a System Information Block (SIB). The physical layer signaling may be Downlink Control Information (DCI) or sidelink control information Signaling (SCI). Wherein, RRC signaling, MAC signaling and system information are carried in the PDSCH. The broadcast message is carried on the broadcast channel PBCH. The physical layer signaling is carried on a downlink control channel PDCCH or a side-row control channel PSCCH.

Based on the same inventive concept, the embodiment of the present application further provides an apparatus, which may have a structure as shown in fig. 8 and has a behavior function of the terminal device in the above method embodiment. As shown in fig. 8, the apparatus 800 may include a transceiving unit 801 and a processing unit 802, where the transceiving unit 801 may be configured to receive a first signaling from a network device at a first time, where the first signaling indicates a resource of a first channel, and the transceiving unit 801 may be further configured to receive a second signaling from the network device at a second time, where the second signaling indicates a resource of a second channel, and the second signaling includes a first transmission power control indication, and the first transmission power control indication indicates a first correction value of the second channel, where the second time is after the first time and the second channel is before the first channel; the processing unit 802 may be configured to use the first correction value as the power adjustment value of the second channel, or reset the power adjustment value of the second channel, or use the sum of the first correction value and the power adjustment value of a third channel as the power adjustment value of the second channel, where the third channel is a channel transmitted before the second channel. In an implementation, the apparatus 800 may also have a storage unit 803, and the storage unit 803 may be coupled with the processing unit 802 for storing programs, instructions, or both, required for the processing unit 802 to perform functions.

In one possible design, the transceiver unit 801 may further be configured to:

receiving a first indication from the network device, the first indication indicating a manner in which the second channel is power controlled, the manner including any one of: taking the first correction value as a power adjustment value of the second channel; or, resetting the power adjustment value of the second channel; or, the sum of the first correction value and the power adjustment value of the third channel is used as the power adjustment value of the second channel.

In one possible design, the processing unit 802 may be further configured to determine a transmission time of the second channel according to the first resource indicator; and determining that the time interval between the receiving time of the first signaling and the sending time of the second channel is greater than or equal to a first processing time delay.

In one possible design, the first signaling includes a second transmission power control indication and a second resource indication, the second transmission power control indication indicates a second modification value of the first channel, and the second resource indication indicates a time domain resource for transmitting the first channel.

In one possible design, the transceiver unit 801 may further be configured to:

receiving third signaling from the network device at a third time, the third signaling indicating resources of the third channel, the third time being before the first time;

based on this design, the processing unit 802 may also be configured to:

and taking the sum of the second correction value and the power adjustment value of the third channel as the power adjustment value of the first channel.

In one possible design, the processing unit 802 may be further configured to:

taking the second correction value as a power adjustment value of the first channel; or resetting the power adjustment value of the first channel.

In one possible design, the processing unit 802 may be further configured to:

determining the sending time of the first channel according to the second resource indication; and determining that the time interval between the receiving time of the second signaling and the sending time of the first channel is smaller than a second processing time delay.

In one possible design, the processing unit 802 may be further configured to:

determining the sending time of the first channel according to the second resource indication; determining a time interval between the receiving time of the second signaling and the sending time of the first channel, wherein the time interval is greater than or equal to a second processing time delay; and taking the sum of the second correction value and the power adjustment value of the second channel as the power adjustment value of the first channel.

In one possible design, the transceiver unit 801 may further be configured to:

receiving a second indication from the network device, the second indication indicating a manner in which the first channel is power controlled, the manner including any one of: using the second correction value as a power adjustment value of the first channel; or, resetting the power adjustment value of the first channel; or, taking the sum of the second correction value and a power adjustment value of a third channel as the power adjustment value of the first channel, where the third channel is a channel transmitted before the second channel; or, the sum of the second correction value and the power adjustment value of the second channel is used as the power adjustment value of the first channel.

In one possible design, the first channel and the second channel are PUSCHs; or the first channel and the second channel are PUCCHs; or, the first channel and the second channel are SRSs.

In one possible design, the first signaling is DCI and/or RRC signaling, and/or the second signaling is DCI and/or RRC signaling.

In addition, an apparatus may have a structure as shown in fig. 9, and the apparatus may be a terminal device, or may be a chip or a chip system that can support the terminal device to implement the method. The apparatus 900 shown in fig. 9 may include at least one processor 902, where the at least one processor 902 is configured to couple with a memory, read and execute instructions in the memory to implement the steps involved in the terminal device in the method provided in the embodiment of the present application. Optionally, the apparatus 900 may further include a transceiver 901 for supporting the apparatus 900 to receive or transmit signaling or data. The transceiver 901 in the apparatus 900 may be configured to implement the functions of the transceiver unit 801, for example, the transceiver 901 may be configured to be used by the apparatus 900 to perform the steps shown in step 101 and step 102 in the communication method shown in fig. 5, and the processor 902 may be configured to implement the functions of the processing unit 802, for example, the processor 902 may be used by the apparatus 900 to perform the steps shown in step 103a to step 103c in the communication method shown in fig. 5. Further, the transceiver 901 may be coupled to an antenna 903 for enabling the apparatus 900 to communicate. Optionally, the apparatus 900 may further include a memory 904, in which the computer program and instructions are stored, and the memory 904 may be coupled with the processor 902 and/or the transceiver 901, and is used for enabling the processor 902 to call the computer program and instructions in the memory 904 to implement the steps involved in the terminal device in the method provided by the embodiment of the present application; in addition, the memory 904 may also be used for storing data related to embodiments of the method of the present application, for example, for storing data, instructions necessary to support the transceiver 901 to implement the interaction, and/or for storing configuration information necessary for the apparatus 900 to perform the method of the embodiments of the present application.

Based on the same inventive concept, the present application provides another apparatus, which may have a structure as shown in fig. 10 and has a behavior function of the network device in the above method embodiment. As shown in fig. 10, the apparatus 1000 may include a transceiving unit 1001, where the transceiving unit 1001 may be configured to send first signaling to a terminal device at a first time, where the first signaling indicates resources of a first channel, the transceiving unit 1001 may be further configured to send second signaling to the terminal device at a second time, where the second signaling indicates resources of a second channel, and the second signaling includes a first transmission power control indication, where the first transmission power control indication indicates a first correction value of the second channel, and the second time is after the first time and before the first channel, and the transceiving unit 1001 may be further configured to send indication information to the terminal device, where the indication information indicates a power control manner of the terminal device. In implementation, the apparatus 1000 may further have a processing unit 1002 and a storage unit 1003, and the storage unit 1003 is used for storing programs and instructions required for the apparatus to perform functions.

In one possible design, the indication information includes a first indication, and the first indication is used to indicate a manner in which the second channel performs power control, where the manner includes any one of: using the first correction value as a power adjustment value of the second channel; or, resetting the power adjustment value of the second channel; or, taking the sum of the first correction value and a power adjustment value of a third channel as the power adjustment value of the second channel, where the third channel is a channel transmitted before the second channel.

In one possible design, a second transmission power control indication is included in the first signaling, and the second transmission power control indication is used for indicating a second correction value of the first channel.

In one possible design, the indication information includes a second indication, and the second indication is used to indicate a manner for power control of the first channel, where the manner includes any one of: using the second correction value as a power adjustment value of the first channel; or, resetting the power adjustment value of the first channel; or, taking the sum of the second correction value and a power adjustment value of a third channel as the power adjustment value of the first channel, where the third channel is a channel transmitted before the second channel; or, the sum of the second correction value and the power adjustment value of the second channel is used as the power adjustment value of the first channel.

In addition, an apparatus may have a structure as shown in fig. 11, where the apparatus may be a network device, and may also be a chip or a chip system that can support the network device to implement the method. For example, the network device may be a base station. The apparatus 1100 shown in fig. 11 may include at least one processor 1102 configured to couple with a memory, read and execute instructions in the memory to implement the steps involved in a network device in the method provided by the embodiment of the present application. Optionally, the apparatus 1100 may further include a transceiver 1101 for supporting the apparatus 1100 in receiving or transmitting signaling or data. The transceiver 1101 in the apparatus 1100 may be configured to implement the functions of the transceiver 1001, for example, the transceiver 1101 may be configured to the apparatus 1100 to perform the steps shown in step 101 and step 102 in the communication method shown in fig. 5. Further, the transceiver 1101 can be coupled to an antenna 1103 for enabling the apparatus 1100 to communicate. Optionally, the apparatus 1100 may further include a memory 1104, in which computer programs and instructions are stored, and the memory 1104 may be coupled with the processor 1102 and/or the transceiver 1101, and is used for enabling the processor 1102 to call the computer programs and instructions in the memory 1104 to implement the steps involved in the network device in the method provided by the embodiment of the present application; in addition, the memory 1104 may be used for storing data related to embodiments of the method of the present application, for example, for storing data, instructions necessary to support the transceiver 1101 to perform the interaction, and/or for storing configuration information necessary for the apparatus 1100 to perform the method of the embodiments of the present application.

Based on the same conception as that of the method embodiment, the embodiment of the present application further provides a computer-readable storage medium, on which some instructions are stored, and when the instructions are called by a computer and executed, the instructions can make the computer complete the method involved in any one of the possible designs of the method embodiment and the method embodiment. In the embodiment of the present application, the computer-readable storage medium is not limited, and may be, for example, a RAM (random-access memory), a ROM (read-only memory), and the like.

Based on the same idea as the above method embodiments, the present application also provides a computer program product which, when called by a computer, may perform the method as referred to in the method embodiments and any possible design of the above method embodiments.

Based on the same concept as the above method embodiments, the present application also provides a chip, which may include a processor and an interface circuit, for implementing the method as referred to in any one of the possible implementations of the above method embodiments, wherein "coupled" means that two components are directly or indirectly joined to each other, which may be fixed or movable, which may allow flowing liquid, electric, electrical or other types of signals to be communicated between the two components.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy Disk, a hard Disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

The various illustrative logical units and circuits described in connection with the embodiments disclosed herein may be implemented or performed with a general purpose processor, a digital signal processor, an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but, in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration.

The steps of a method or algorithm described in the embodiments herein may be embodied directly in hardware, in a software element executed by a processor, or in a combination of the two. The software cells may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. For example, a storage medium may be coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC, which may be disposed in a terminal device. In the alternative, the processor and the storage medium may reside as discrete components in a terminal device.

These computer program 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.

While the invention has been described in conjunction with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made therein without departing from the scope of the invention. Accordingly, the specification and drawings are merely illustrative of the invention as defined by the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A method of power control, comprising:

receiving first signaling from a network device at a first time, the first signaling indicating resources of a first channel;

receiving a second signaling from the network device at a second time, where the second signaling indicates a resource of a second channel, the second signaling includes a first transmission power control indication, and the first transmission power control indication is used to indicate a first correction value of the second channel, where the second time is after the first time, and the second channel is sent before the first channel;

taking the first correction value as a power adjustment value of the second channel, wherein the first transmission power control indication is an absolute TPC indication; or

Resetting a power adjustment value for the second channel.

2. The method of claim 1, further comprising:

receiving a first indication from the network device, the first indication indicating a manner in which the second channel is power controlled, the manner including any one of:

using the first correction value as a power adjustment value of the second channel; or,

resetting a power adjustment value for the second channel.

3. The method of claim 2, wherein the first indication is included in the second signaling.

4. The method of any of claims 1-3, wherein a first resource indication is included in the second signaling, the first resource indication indicating time domain resources for transmitting the second channel;

the method further comprises the following steps:

determining the sending time of the second channel according to the first resource indication;

and determining that the time interval between the receiving time of the first signaling and the sending time of the second channel is greater than or equal to a first processing time delay.

5. A method according to any of claims 1-3, wherein the first signalling comprises a second transmission power control indication indicating a second correction value for the first channel and a second resource indication indicating time domain resources for transmitting the first channel.

6. The method of claim 5, further comprising:

receiving a third signaling from the network device at a third time, where the third signaling is used to indicate a resource of a third channel, and the third time is before the first time, and taking a sum of the second correction value and a power adjustment value of the third channel as the power adjustment value of the first channel.

7. The method of claim 5, further comprising:

using the second correction value as a power adjustment value of the first channel; or, resetting the power adjustment value of the first channel.

8. The method of any one of claims 6-7, further comprising:

determining the sending time of the first channel according to the second resource indication;

and determining that the time interval between the receiving time of the second signaling and the sending time of the first channel is smaller than a second processing time delay.

9. The method of claim 5, further comprising:

determining a time interval between the receiving time of the second signaling and the sending time of the first channel, wherein the time interval is greater than or equal to a second processing time delay;

and taking the sum of the second correction value and the power adjustment value of the second channel as the power adjustment value of the first channel.

10. The method of any of claims 6-7 or 9, further comprising:

receiving a second indication from the network device, the second indication indicating a manner in which the first channel is power controlled, the manner including any one of:

using the second correction value as a power adjustment value of the first channel; or,

resetting a power adjustment value for the first channel; or,

taking the sum of the second correction value and a power adjustment value of a third channel as the power adjustment value of the first channel, wherein the third channel is a channel transmitted before the second channel; or,

11. The method of claim 10, wherein the second indication is included in the first signaling.

12. The method of any of claims 1-3, 6-7, 9, or 11, wherein the first channel and the second channel are physical uplink shared channels, PUSCHs; or,

the first channel and the second channel are Physical Uplink Control Channels (PUCCHs); or,

the first channel and the second channel are Sounding Reference Signals (SRS).

13. The method according to any of claims 1-3, 6-7, 9 or 11, wherein the first signaling is downlink control information, DCI, and/or radio resource control, RRC, signaling, and/or the second signaling is DCI and/or RRC signaling.

14. A method of power control, comprising:

sending a first signaling to a terminal device at a first moment, wherein the first signaling indicates resources of a first channel;

sending a second signaling to the terminal device at a second time, where the second signaling indicates a resource of a second channel, the second signaling includes a first transmission power control indication, the first transmission power control indication is used to indicate a first correction value of the second channel, and the second channel is transmitted before the first channel after the first time;

sending indication information to the terminal device, where the indication information is used to indicate a mode of power control of the terminal device, where the mode includes any one of:

taking the first correction value as a power adjustment value of the second channel, wherein the first transmission power control indication is an absolute TPC indication; or,

resetting a power adjustment value for the second channel.

15. The method of claim 14, wherein the indication information comprises a first indication indicating a manner in which the second channel is power controlled, the manner comprising any one of:

resetting a power adjustment value for the second channel.

16. The method of claim 15, wherein the first indication is included in the second signaling.

17. A method according to any one of claims 14 to 16, wherein a second transmission power control indication is included in the first signalling, the second transmission power control indication indicating a second correction value for the first channel.

18. The method of claim 17, wherein the indication information comprises a second indication indicating a manner in which the first channel is power controlled, the manner comprising any one of:

taking the second correction value as a power adjustment value of the first channel; or,

resetting a power adjustment value for the first channel; or,

19. The method of claim 18, wherein the second indication is included in the first signaling.

20. The method according to any of claims 14-16 or 18-19, wherein the first channel and the second channel are physical uplink shared channels, PUSCHs; or,

the first channel and the second channel are Sounding Reference Signals (SRS).

21. The method according to any of claims 14-16 or 18-19, wherein the first signaling is downlink control information, DCI, and/or radio resource control, RRC, signaling, and/or the second signaling is DCI and/or RRC signaling.

22. A power control apparatus, comprising: means for performing the steps of any of claims 1-13.

23. A power control apparatus, comprising: means for performing the steps of any of claims 14-21.

24. A power control apparatus comprising at least one processor coupled to a memory, the at least one processor configured to read and execute a program stored in the memory to cause the apparatus to perform the method of any one of claims 1-13.

25. A power control apparatus comprising at least one processor coupled to a memory, the at least one processor configured to read and execute a program stored in the memory to cause the apparatus to perform the method of any of claims 14-21.

26. A chip coupled to a memory for reading and executing program instructions stored in the memory to implement the method of any one of claims 1-21.

27. A communication system comprising an apparatus according to claim 22 and an apparatus according to claim 23.

28. A communication system comprising an apparatus according to claim 24 and an apparatus according to claim 25.

29. A computer-readable storage medium having stored thereon computer instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-21.