CN110972246B

CN110972246B - Power control method, transmission power control parameter determining method and related equipment

Info

Publication number: CN110972246B
Application number: CN201811141509.2A
Authority: CN
Inventors: 孙晓东; 孙鹏; 吴昱民
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2023-09-22
Anticipated expiration: 2038-09-28
Also published as: CN110972246A

Abstract

The invention provides a power control method, a transmission power control parameter determining method and related equipment, wherein the method comprises the following steps: performing uplink transmission power control based on a target power control parameter configured by a network side; the target power control parameter includes a reference power control parameter, a first power control parameter or a second power control parameter, where the reference power control parameter is a power control parameter in a reference power parameter set, the first power control parameter is a power control parameter corresponding to historical uplink transmission, the second power control parameter is a power control parameter transmitted in an activated downlink bandwidth, and the bandwidth includes a bandwidth portion BWP or a carrier. By the power control method provided by the invention, the problem of inaccurate power control of the UE caused by that the network side is not configured with corresponding power control parameters of uplink transmission or the power control parameters are unavailable can be solved.

Description

Power control method, transmission power control parameter determining method and related equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a power control method, a transmission power control parameter determining method, and related devices.

Background

In future communication systems (for example, NR (New Radio) systems), the network side may configure at least one carrier for a UE (User Equipment) side for uplink and/or downlink transmission. To avoid the excessive Bandwidth of one carrier, BWP (Bandwidth Part) is introduced to influence UE measurement or uplink transmission. Wherein the total bandwidth of one carrier may be divided into a plurality of BWP, and the uplink transmission power control parameters are independently configured based on different BWP. However, if the network side does not configure the corresponding power control parameters for the uplink transmission of the UE, or if the power control parameters are not available, the power control of the UE may be inaccurate, thereby affecting the uplink transmission reliability and rate.

Disclosure of Invention

The embodiment of the invention provides a power control method, a transmission power control parameter determining method and related equipment, which are used for solving the problem of inaccurate power control of UE (user equipment) caused by that a network side does not configure corresponding power control parameters for uplink transmission or the power control parameters are unavailable.

In order to solve the technical problems, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a power control method. The method comprises the following steps:

Performing uplink transmission power control based on a target power control parameter configured by a network side;

the target power control parameter includes a reference power control parameter, a first power control parameter or a second power control parameter, where the reference power control parameter is a power control parameter in a reference power parameter set, the first power control parameter is a power control parameter corresponding to historical uplink transmission, the second power control parameter is a power control parameter transmitted in an activated downlink bandwidth, and the bandwidth includes a bandwidth portion BWP or a carrier.

In a second aspect, the embodiment of the invention further provides a power control method. The method comprises the following steps:

transmitting the target power control parameter to the terminal equipment;

the target power control parameter is used for uplink transmission power control of the terminal equipment, the target power control parameter comprises a reference power control parameter, a first power control parameter or a second power control parameter, the reference power control parameter is a power control parameter in a reference power parameter set, the first power control parameter is a power control parameter corresponding to historical uplink transmission, the second power control parameter is a power control parameter transmitted in an activated downlink bandwidth, and the bandwidth comprises a bandwidth part BWP or a carrier.

In a third aspect, the embodiment of the invention further provides a transmission power control parameter determining method. The method comprises the following steps:

when at least one SRS resource set is transmitted in at least two transmission times, determining that the effective time of the Transmission Power Control (TPC) is the initial transmission time of the at least two transmission times or the initial transmission time of a first SRS resource;

the transmission time includes a symbol or a slot, and the first SRS resource is an SRS resource transmitted first in the at least two transmission times in the at least one SRS resource set.

In a fourth aspect, the embodiment of the invention further provides a terminal device. The terminal device includes:

the control module is used for controlling uplink transmission power based on the target power control parameters configured by the network side;

In a fifth aspect, the embodiment of the invention further provides a network side device. The network side device includes:

a sending module, configured to send a target power control parameter to a terminal device;

In a sixth aspect, the embodiment of the invention further provides a terminal device. The terminal device includes:

a first determining module, configured to determine, when at least one SRS resource set is transmitted in at least two transmission times, that an effective time of a transmission power control TPC is a starting transmission time of the at least two transmission times, or a starting transmission time of a first SRS resource;

In a seventh aspect, an embodiment of the present invention further provides a terminal device, including a processor, a memory, and a computer program stored in the memory and executable on the processor, where the computer program is executed by the processor to implement the steps of the power control method provided in the first aspect.

In an eighth aspect, an embodiment of the present invention further provides a network side device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program is executed by the processor to implement the steps of the power control method provided in the second aspect.

In a ninth aspect, an embodiment of the present invention further provides a terminal device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program when executed by the processor implements the steps of the above-mentioned transmission power control parameter determining method.

In a tenth aspect, an embodiment of the present invention further provides a computer readable storage medium, where a computer program is stored, where the computer program when executed by a processor implements the steps of the power control method provided in the first aspect, or implements the steps of the power control method provided in the second aspect, or implements the steps of the transmission power control parameter determining method described above.

In the embodiment of the invention, the uplink transmission power is controlled based on the reference power control parameter, the first power control parameter or the second power control parameter indicated by the network side, so that the problem of inaccurate power control of the UE caused by that the network side does not configure the corresponding power control parameter for uplink transmission or the power control parameter is unavailable can be solved, and in addition, the signaling cost can be reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

FIG. 1 is a block diagram of a network system to which embodiments of the present invention are applicable;

fig. 2 is a flowchart of a power control method according to an embodiment of the present invention;

fig. 3 is a schematic diagram of bandwidth switching provided by an embodiment of the present invention;

FIG. 4 is a flow chart of another power control method provided by an embodiment of the present invention;

fig. 5 is a flowchart of a transmission power control parameter determining method according to an embodiment of the present invention;

Fig. 6 is a schematic diagram of a transmission power control effective time provided by an embodiment of the present application;

fig. 7 is a block diagram of a terminal device according to an embodiment of the present application;

fig. 8 is a block diagram of a network side device according to an embodiment of the present application;

fig. 9 is a block diagram of another terminal device according to an embodiment of the present application;

fig. 10 is a block diagram of another terminal device according to an embodiment of the present application;

fig. 11 is a block diagram of another network side device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to implement embodiments of the application described herein, such as in a sequence other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, the use of "and/or" in the specification and claims means at least one of the connected objects, such as a and/or B and/or C, is meant to encompass the 7 cases of a alone, B alone, C alone, and both a and B, both B and C, both a and C, and both A, B and C.

The embodiment of the invention provides a power headroom reporting method. Referring to fig. 1, fig. 1 is a block diagram of a network system to which the embodiment of the present invention is applicable, as shown in fig. 1, including a terminal Device 11 and a network side Device 12, where the terminal Device 11 may be a terminal Device side Device such as a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer), a personal digital assistant (Personal Digital Assistant, abbreviated as PDA), a mobile internet Device (Mobile Internet Device, MID) or a web Device (web Device), and it should be noted that the embodiment of the present invention is not limited to a specific type of the terminal Device 11. The network-side device 12 may be a base station, for example: macro station, LTE eNB, 5G NR NB, gNB, etc.; the network side device 12 may also be a small station, such as a Low Power Node (LPN) pico, femto, etc., or the network side device 12 may be an Access Point (AP); the base station may also be a network node formed by a Central Unit (CU) together with a plurality of transmission reception points (Transmission Reception Point, TRP) which it manages and controls. It should be noted that, in the embodiment of the present invention, the specific type of the network side device 12 is not limited.

In the embodiment of the present invention, the terminal device 11 may perform uplink transmission power control based on the target power control parameter configured by the network side, for example, determine uplink transmission power based on the target power control parameter. The target power control parameter may include a reference power control parameter, a power control parameter corresponding to a historical uplink transmission, or a power control parameter transmitted in an activated downlink bandwidth.

The reference power control parameter may be a reference power control parameter in a reference power control parameter set configured by the network side. The power control parameter corresponding to the historical uplink transmission, for example, the power control parameter corresponding to the last uplink transmission. The power control parameters transmitted in the activated downlink bandwidth, that is, the power control parameters transmitted in the downlink bandwidth currently transmitted.

The Bandwidth may include a Bandwidth Part (BWP) or a carrier (which may also be referred to as a partial Bandwidth).

It should be noted that, in the embodiment of the present invention, uplink transmission power control may be performed based on the target power parameter when the initially selected bandwidth is transmitted; or when the bandwidth is switched to send or indicated across bandwidth, the uplink transmission power is controlled based on the target power control parameter configured by the network side.

In practical applications, when the power control parameter is transmitted in the activated downlink bandwidth, the terminal device 11 may perform power control based on the power control parameter transmitted in the activated downlink bandwidth, for example, perform a path loss measurement based on a Reference Signal (RS) transmitted in the activated downlink bandwidth, and determine uplink transmit power based on the path loss measurement result.

Under the condition that the power control parameters are not configured or transmitted in the activated downlink bandwidth, the terminal equipment 11 can determine the reference power parameters corresponding to the currently activated bandwidth from the reference power control parameter set configured by the network side to perform power control. For example, the reference power control parameter set includes at least one reference power control parameter, and an association relationship between a reference power control parameter identifier and a scheduling request indicator (Scheduling Request Indication, abbreviated as SRI), the terminal device 11 may determine a reference power control parameter corresponding to a currently activated bandwidth from the reference power control parameter set according to the SRI included in the received downlink control information (Downlink Control Information, abbreviated as DCI), and may calculate uplink transmission power based on the reference power control parameter.

In the case that the network side is not configured with the reference power control parameter set, the terminal device 11 may perform power control based on the power control parameter corresponding to the historical uplink transmission. It should be noted that, the historical uplink transmission may be indicated by the network side in an implicit manner, for example, the last uplink transmission may also be indicated by the network side in a display manner, for example, the network side indicates the identifier of the historical uplink transmission.

Optionally, in the case that the power control parameter is not configured or referenced in the activated downlink bandwidth, since the terminal device needs to calculate the reference signal by measuring the path loss in the deactivated downlink bandwidth, the terminal device expects the network side device 12 to configure the measurement slot, and the terminal device can perform the path loss measurement based on the measurement slot configured by the network side device 12.

Alternatively, it may be provided that the terminal device 11 measures the path loss calculation reference signal only at the active downstream bandwidth. At this time, the terminal device 11 expects the network side device to calculate the reference signal for the activated downlink bandwidth configuration and transmission path loss.

The embodiment of the invention can control the uplink transmission power based on the reference power control parameter, the first power control parameter or the second power control parameter, thereby reducing the problem of inaccurate power control of the UE caused by that the network side does not configure the corresponding power control parameter for uplink transmission or the power control parameter is not available. In addition, signaling overhead may be saved as compared to configuring independent power control parameters for each bandwidth separately.

The embodiment of the invention provides a power control method which is applied to terminal equipment. Referring to fig. 2, fig. 2 is a flowchart of a power control method according to an embodiment of the present invention, as shown in fig. 2, including the following steps:

step 201, performing uplink transmission power control based on a target power control parameter configured by a network side;

In the embodiment of the present invention, the reference power control parameter may be a reference power control parameter in a reference power control parameter set configured by a network side. The power control parameter corresponding to the historical uplink transmission, for example, the power control parameter corresponding to the last uplink transmission. The power control parameters transmitted in the activated downlink bandwidth, that is, the power control parameters transmitted in the downlink bandwidth currently transmitted.

The bandwidth may include a bandwidth portion (which may also be referred to as a partial bandwidth) or a carrier.

The power control parameter may include one or at least two of a target received power, a path loss compensation factor, a path loss calculation RS, a closed loop power control flag, and the like.

In practical applications, the terminal device may determine uplink transmit power based on the target power control parameter, and perform uplink transmission based on the uplink transmit power.

The embodiment of the invention carries out uplink transmission power control based on the reference power control parameter, the first power control parameter or the second power control parameter, thereby reducing the probability of inaccurate power control of the UE caused by that the network side does not configure the corresponding power control parameter for uplink transmission or the power control parameter is unavailable. In addition, signaling overhead may be saved as compared to configuring independent power control parameters for each bandwidth separately.

Optionally, the step 201, that is, performing uplink transmission power control based on the target power control parameter configured by the network side, may include:

and when the bandwidth is switched to be sent or indicated by the cross-bandwidth, performing uplink transmission power control based on the target power control parameter.

In the embodiment of the present invention, the bandwidth switching transmission may be understood as a transmission from one bandwidth to another bandwidth, where the bandwidth switching transmission may include a BWP switching transmission or a carrier switching transmission. For example, referring to fig. 3, uplink BWP is switched from UL BWP0 to UL BWP2, and downlink BWP is switched from DL BWP0 to DL BWP1. The above-described cross-bandwidth indication (which may also be referred to as cross-bandwidth scheduling) may include one BWP indicating another BWP transmission, or one carrier indicating another carrier transmission.

The uplink transmission power control is performed based on the target power control parameter when the bandwidth switch transmission or the bandwidth crossing instruction is performed, which may be understood as performing the uplink transmission power control based on the target power control parameter when the bandwidth switch transmission or the bandwidth crossing instruction is performed.

According to the embodiment of the invention, when the bandwidth is switched and sent or the bandwidth is indicated, the uplink transmission power is controlled based on the target power control parameter configured by the network side, so that the accuracy of the uplink power control in the bandwidth switching and sending or the bandwidth-indicated process can be improved, and the reliability and the rate of the uplink transmission can be improved.

Optionally, the target power control parameter is one of the reference power control parameter, the first power control parameter and the second power control parameter, which is available and has the highest priority.

In the embodiment of the present invention, if the power control parameter is transmitted in the activated downlink bandwidth, it may be determined that the second power control parameter is available. If the network side configures the reference power control parameter for the terminal device, it may be determined that the reference power control parameter is available.

It should be noted that, since the first power control parameter, that is, the power control parameter corresponding to the historical uplink transmission, may be predefined by a protocol, or may be indicated by a network side. When the first power control parameter is predefined by the protocol, if there is a power control parameter corresponding to the historical uplink transmission, it may be determined that the first power control parameter is available. When the first power control parameter is indicated by the network side, if the network side device indicates a certain historical uplink transmission or a certain uplink transmission identifier to the terminal device, it may be determined that the first power control parameter is available.

It should be noted that, the priority relationships among the reference power control parameter, the first power control parameter and the second power control parameter may be set reasonably according to actual situations, which is not limited in the embodiment of the present invention.

The embodiment of the invention carries out uplink transmission power control based on one power control parameter with highest priority which is available in the reference power control parameter, the first power control parameter and the second power control parameter, thereby further reducing the problem of inaccurate power control caused by that the network side does not configure the corresponding power control parameter for uplink transmission or the power control parameter is not available.

Optionally, the second power control parameter has a higher priority than the reference power control parameter, and the reference power control parameter has a higher priority than the first power control parameter.

In the embodiment of the invention, under the condition that the power control parameter is transmitted in the activated downlink bandwidth, the terminal equipment can perform power control based on the power control parameter transmitted in the activated downlink bandwidth. Under the condition that the power control parameters are not configured or transmitted in the activated downlink bandwidth, the terminal equipment can determine the reference power parameters corresponding to the currently activated bandwidth from the reference power control parameter set configured by the network side to perform power control. Under the condition that the network side is not configured with the reference power control parameter set, the terminal equipment can perform power control based on the power control parameters corresponding to the historical uplink transmission.

In the embodiment of the invention, the priority of the second power control parameter is higher than the priority of the reference power control parameter, and the priority of the reference power control parameter is higher than the priority of the first power control parameter, so that the priority of using the second power control parameter to control the uplink transmission power can be ensured, and the accuracy of the uplink transmission power control is improved.

Optionally, the first power control parameter is: the most recent uplink transmission corresponds to the power control parameter.

In the embodiment of the invention, the uplink power control is performed based on the power control parameter corresponding to the latest uplink transmission, so that the accuracy of the uplink power control can be improved.

Optionally, the reference power control parameter set includes at least one of:

carrier identification or cell identification;

uplink BWP identification;

downlink BWP identification;

a power control parameter set;

and (5) power control parameter identification.

In the embodiment of the invention, when the reference power control parameter set includes the carrier identifier, the terminal device can perform uplink transmission power control based on the power control parameter corresponding to the carrier indicated by the carrier identifier; when the reference power control parameter set includes a cell identifier, the terminal device may perform uplink transmission power control based on a power control parameter corresponding to the cell indicated by the carrier identifier. When the reference power control parameter set includes an uplink BWP identifier, the terminal device may perform uplink transmission power control based on a power control parameter corresponding to the uplink BWP indicated by the uplink BWP identifier; when the reference power control parameter set includes a downlink BWP identity, the terminal device may perform uplink transmission power control based on a power control parameter corresponding to the downlink BWP indicated by the downlink BWP identity.

Optionally, the set of power control parameters may include at least one of: a target received power set; a path loss compensation factor set; calculating a reference signal RS set by path loss; a closed loop power control identification set;

and/or

The power control parameter identification may include at least one of: a target received power identifier; a path loss compensation factor mark; calculating a reference signal RS identifier by the path loss; closed loop power control identification.

Optionally, before the uplink transmission power control is performed based on the target power control parameter configured by the network side, the method further includes:

under the condition that a target path loss calculation reference signal RS is not configured or transmitted in the activated downlink bandwidth, first indication information is received from network side equipment;

the target route loss calculation RS is a route loss calculation RS corresponding to uplink transmission of the uplink bandwidth currently activated, the first indication information is used for indicating a measurement time slot, and the measurement time slot is used for route loss measurement.

In the embodiment of the invention, under the condition that the target route loss calculation RS is not configured or transmitted in the activated downlink bandwidth, because the terminal equipment needs to measure the route loss calculation RS in the inactivated downlink bandwidth, the terminal equipment expects the network side to configure the measurement time slot so as to facilitate the terminal equipment to measure the route loss calculation RS in the inactivated downlink bandwidth.

Optionally, the reference power control parameter is indicated by the network side device through a target bearer;

wherein the target bearer comprises at least one of: radio resource control, RRC, signaling; a media access control unit (MAC CE); downlink control information DCI.

In the embodiment of the present invention, the terminal device may receive the above reference power control parameter indicated by the network side device through at least one of RRC (Radio Resource Control ) signaling, MAC CE (Media Access Control Control Element, medium access control element) and DCI.

In practical application, the terminal device may receive the reference power control parameter set indicated by the network side device through at least one of RRC signaling, MAC CE, and DCI, and obtain a reference power control parameter corresponding to uplink transmission of the currently activated uplink bandwidth from the reference power control parameter set.

It should be noted that, the reference power control parameter in the reference power control parameter set may be associated with the target information corresponding to the corresponding uplink transmission, so that the terminal device may conveniently obtain the reference power control parameter corresponding to the uplink transmission. For example, for PUSCH, SRI is associated with a reference power control parameter identity; for PUCCH, the MAC CE is associated with a reference power control parameter identity; for SRS, the SRS resource set is associated with a reference power control parameter, which may be configured directly in the SRS resource set, for example.

Optionally, when the uplink transmission is PUSCH transmission, the reference power control parameter is indicated by RRC signaling and SRI in DCI.

Optionally, when the uplink transmission is PUCCH transmission, the reference power control parameter is indicated by RRC signaling and MAC CE.

Optionally, when the uplink transmission is SRS transmission, the reference power control parameter is indicated through RRC signaling.

In the embodiment of the present invention, when the uplink transmission is PUSCH transmission, the reference power control parameter is indicated by RRC signaling and SRI in DCI, that is, the network side device configures at least one reference power control set for the terminal device by RRC signaling, and the terminal device obtains, according to the SRI in the DCI, the reference power control parameter associated with the SRI from one reference power control set.

When the uplink transmission is PUCCH transmission, the reference power control parameter is indicated by RRC signaling and MAC CE, that is, the network side device configures at least one reference power control set for the terminal device by RRC signaling, and the terminal device obtains, according to the MAC CE, the reference power control parameter associated with the MAC CE from one reference power control set.

When the uplink transmission is SRS transmission, the reference power control parameter is indicated by RRC signaling, that is, the network side device transmits, for the terminal device, an SRS resource set and a reference power control parameter by RRC signaling, where the reference power control parameter may be configured in the SRS resource set, so that the reference power control parameter may be determined by the SRS resource set.

The embodiment of the invention also provides a power control method which is applied to the network side equipment. Referring to fig. 4, fig. 4 is a flowchart of another power control method according to an embodiment of the present invention, as shown in fig. 4, including the following steps:

step 401, transmitting a target power control parameter to a terminal device;

In the embodiment of the present invention, the reference power control parameter may be a reference power control parameter in at least one reference power control parameter set. The power control parameter corresponding to the historical uplink transmission, for example, the power control parameter corresponding to the last uplink transmission. The power control parameters transmitted in the activated downlink bandwidth, that is, the power control parameters transmitted in the downlink bandwidth currently transmitted.

According to the embodiment of the invention, the target power control parameter is sent to the terminal equipment, so that the terminal equipment can conveniently control the uplink transmission power based on the target power control parameter configured by the network side, and the problem of inaccurate power control of the UE caused by that the network side does not configure the corresponding power control parameter for the uplink transmission or the power control parameter is unavailable can be solved.

For example, if there is a power control parameter transmitted in the active downlink bandwidth, it may be determined that a second power control parameter is available. If the network side configures the reference power control parameter for the terminal device, it may be determined that the reference power control parameter is available.

The embodiment of the invention carries out uplink transmission power control based on one power control parameter with highest priority which is available in the reference power control parameter, the first power control parameter and the second power control parameter, and can further reduce the probability of inaccurate power control caused by that the network side does not configure the corresponding power control parameter for uplink transmission or the power control parameter is unavailable.

Optionally, the first power control parameter is a power control parameter corresponding to the latest uplink transmission.

Optionally, the reference power control parameter set includes at least one of:

carrier identification or cell identification;

uplink BWP identification;

downlink BWP identification;

a power control parameter set;

and (5) power control parameter identification.

Optionally, the set of power control parameters includes at least one of: a target received power set; a path loss compensation factor set; calculating a reference signal RS set by path loss; a closed loop power control identification set;

and/or

The power control parameter identification includes at least one of: a target received power identifier; a path loss compensation factor mark; calculating a reference signal RS identifier by the path loss; closed loop power control identification.

Optionally, the method further comprises:

under the condition that a target path loss calculation reference signal RS is not configured or transmitted in the activated downlink bandwidth, first indication information is sent to the terminal equipment;

In the embodiment of the invention, under the condition that the target route loss calculation RS is not configured or transmitted in the activated downlink bandwidth, because the terminal equipment needs to measure the route loss calculation RS in the non-activated downlink bandwidth, the network side equipment sends the first indication information for indicating the measurement time slot to the terminal equipment so as to facilitate the terminal equipment to measure the route loss calculation RS in the non-activated downlink bandwidth.

Optionally, the sending the target power control parameter to the terminal device includes:

indicating a reference power control parameter to the terminal equipment through the target bearer;

In the embodiment of the present invention, the network side device may transmit the reference power control parameter through at least one of RRC signaling, MAC CE and DCI.

In practical application, the network side device may transmit the reference power control parameter set to the terminal device through at least one of RRC signaling, MAC CE and DCI, so that the terminal device may obtain the reference power control parameter corresponding to uplink transmission of the currently activated uplink bandwidth from the reference power control parameter set.

It should be noted that, the reference power control parameter in the reference power control parameter set may be associated with information corresponding to the corresponding uplink transmission, so that the terminal device may conveniently obtain the reference power control parameter corresponding to the uplink transmission. For example, for PUSCH, SRI is associated with a reference power control parameter identity; for PUCCH, the MAC CE is associated with a reference power control parameter identity; for SRS, the SRS resource set is associated with a reference power control parameter, which may be configured directly in the SRS resource set, for example.

The power control method provided by the embodiment of the invention is described below with reference to examples:

example one:

in the case of cross-carrier scheduling (also referred to as cross-carrier indication), the network side device configures at least one reference power parameter set for the UE (also referred to as terminal device) through RRC signaling, where the reference power parameter set includes at least a path loss calculation RS set, and the path loss calculation RS set includes at least one downlink channel state information reference signal (Channel State Information Reference Signal, abbreviated as CSI-RS) identifier or synchronization information block identifier, and an association relationship between the path loss calculation RS identifier and the SRI.

When the network side equipment indicates the non-current carrier wave PUSCH to transmit through the DCI, the UE determines a path loss calculation RS according to the SRI contained in the DCI and the association relation between the path loss calculation RS identification and the SRI, and performs measurement and path loss calculation based on the determined path loss calculation RS to determine the PUSCH transmission power.

Example two:

in the case of BWP handover transmission, the network side device configures at least one reference power parameter set for the UE through RRC signaling, where the reference power parameter set includes at least a path loss calculation RS set, the path loss calculation RS set includes at least one CSI-RS identifier or a synchronization information block identifier, and an association relationship between the path loss calculation RS identifier and the SRI.

When the network side equipment indicates the PUSCH to send through the DCI, the UE determines a path loss calculation RS according to the SRI contained in the DCI and the association relation between the path loss calculation RS identifier and the SRI, and performs measurement and path loss calculation based on the determined path loss calculation RS to determine the PUSCH sending power.

Example three:

in the case of BWP handover transmission, the network side device configures a reference UL BWP (Uplink Bandwidth Part ) for the UE in an explicit manner or an implicit manner, where the reference UL BWP includes at least one power control parameter set, the power control parameter set includes at least a path loss calculation RS set, the path loss calculation reference RS set includes at least one CSI-RS identifier or synchronization information block identifier, and an association relationship between the path loss calculation RS identifier and the SRI.

When the network side equipment indicates the PUSCH to send through the DCI, the UE determines a path loss calculation RS according to the SRI contained in the DCI, and the association relation between the path loss calculation RS identification and the SRI, and performs measurement and path loss calculation based on the determined path loss calculation RS to determine the PUSCH sending power.

It should be noted that, the display manner may be to configure a UL BWP identifier through RRC signaling; the implicit manner may be that the reference UL BWP is pre-handover UL BWP or UL BWP identified as N, where N may be set according to actual requirements.

Example four:

in the case where there is BWP handover transmission, if DL BWP (Downlink Bandwidth Part ) corresponding to the current PUSCH transmission UL BWP is not activated or DL BWP is activated but the path loss calculation RS is not configured, the UE performs path loss calculation based on the reference UL BWP.

It should be noted that, the reference UL BWP may be configured for the UE by the network side device explicitly or implicitly.

Example five:

in the presence of BWP handover transmission, the network-side device configures a reference DL BWP for the UE either explicitly or implicitly.

When the network side equipment indicates the PUSCH to send through the DCI, the UE determines a path loss calculation RS according to the SRI contained in the DCI, and further measures and calculates the path loss by referring to the DL BWP to determine the PUSCH sending power.

It should be noted that, the explicit manner may be to configure a DL BWP identifier through RRC signaling; the implicit manner may be reference DL BWP is DL BWP corresponding to PUSCH transmission UL BWP before BWP handover or DL BWP identified as N, where N may be set according to actual requirements.

Example six:

If DL BWP corresponding to non-current transmission UL BWP is not activated or DL BWP is activated but the path loss calculation RS is not configured, the UE performs path loss calculation based on the reference DL BWP.

It should be noted that, the above examples only enumerate PUSCH transmission scenarios, and PUCCH and SRS transmission scenarios are similar to PUSCH transmission scenarios, and are not repeated here.

According to the embodiment of the invention, the reference signal is calculated by configuring the reference path loss at the network side, so that dynamic indication of the power control parameters can be realized during cross-carrier scheduling or BWP switching, and the control signaling overhead is reduced.

The embodiment of the invention also provides a transmission power control parameter determining method which is applied to the terminal equipment. Referring to fig. 5, fig. 5 is a flowchart of a transmission power control parameter determining method according to an embodiment of the present invention, as shown in fig. 5, including the following steps:

step 501, when at least one SRS resource set is transmitted in at least two transmission times, determining that the effective time of the transmission power control TPC is the starting transmission time of the at least two transmission times or the starting transmission time of the first SRS resource;

In the embodiment of the present invention, the at least one SRS resource set may be an SRS resource set used for beam management, antenna switching, codebook-based transmission or non-codebook-based transmission. The at least two transmission times may be consecutive or non-consecutive symbols or consecutive or non-consecutive time slots.

In this step, when at least one SRS resource set is transmitted in at least two transmission times, the effective time of TPC (Transmit Power Control, transmission power control) may be the starting transmission time of at least two transmission times, or may be the starting transmission time of the SRS resource of the first transmission in at least one SRS resource set. For example, referring to fig. 6, the terminal device receives TPC0 and TPC1, the effective time of TPC0 is t1, and the effective time of TPC1 is t2.

In the embodiment of the invention, under the condition that at least one SRS resource set is transmitted in at least two transmission times, determining that the effective time of TPC is the initial transmission time of the at least two transmission times or the initial transmission time of the first SRS resource standardizes the determination mode of the effective time of TPC under the condition that at least one SRS resource set is transmitted in at least two transmission times, thereby more accurately controlling the transmission power.

Optionally, the method further comprises:

and when at least two transmission times exist in the effective time of at least one TPC, determining that the value of the TPC is the sum of the values of the at least one TPC or the value of the first effective TPC in the values of the at least one TPC.

In the embodiment of the present invention, the effective time of the at least one TPC may be the effective time of at least one TPC corresponding to at least one SRS resource set transmitted in at least two transmission times.

It should be noted that, when there is only one valid time of the TPC in at least two transmission times, the value of the TPC may be the value of the TPC or the value of the TPC that is valid first. For example, when the first effective TPC is TPC0 and there is only effective time of TPC1 in at least two transmission times, the value of TPC may be the value of TPC1 or the value of TPC 0.

When there are at least two effective times of the TPC in the at least two transmission times, the value of the TPC may be the sum of the values of the at least two TPC, or may be the value of the TPC that is the first effective TPC of the values of the at least two TPC. For example, there are a valid time of TPC0 and a valid time of TPC1 in at least two transmission times, where TPC0 is the TPC that is the first to be validated, and the value of TPC may be the sum of the value of TPC0 and the value of TPC1, or may be the value of TPC 0.

Optionally, the terminal device does not expect that there are at least two TPC validation times among the at least two transmission times.

In the embodiment of the present invention, the terminal device does not expect that at least two TPC effective times exist in a plurality of continuous or discontinuous transmission times. For example, the network side device configures the at least two transmission times with the effective time of one TPC only, or the network side device configures the at least two transmission times with the effective time of at least two TPC, but the terminal device receives only one of them.

Referring to fig. 7, fig. 7 is a block diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 7, the terminal device 700 includes:

a control module 701, configured to perform uplink transmission power control based on a target power control parameter configured by a network side;

Optionally, the control module is specifically configured to:

and when the bandwidth is switched to be sent or indicated by the cross-bandwidth, performing uplink transmission power control based on the target power control parameters configured by the network side.

Optionally, the reference power control parameter set includes at least one of:

carrier identification or cell identification;

uplink BWP identification;

downlink BWP identification;

a power control parameter set;

and (5) power control parameter identification.

And/or

Optionally, the terminal device further includes:

a receiving module, configured to receive, from a network side device, first indication information when a target path loss calculation reference signal RS is not configured or transmitted in an activated downlink bandwidth before uplink transmission power control based on the target power control parameter configured by the network side;

The terminal device 700 provided in the embodiment of the present invention can implement each process implemented by the terminal device in the method embodiment of fig. 2, and in order to avoid repetition, a description is omitted here.

The terminal device 700 and the control module 701 in the embodiments of the present invention are configured to perform uplink transmission power control based on the target power control parameter configured by the network side, so as to reduce the problem of inaccurate UE power control caused by that the network side does not configure the corresponding power control parameter for uplink transmission, or the power control parameter is unavailable.

Referring to fig. 8, fig. 8 is a block diagram of a network side device according to an embodiment of the present invention. As shown in fig. 8, the network-side device 800 includes:

a transmitting module 801, configured to transmit a target power control parameter to a terminal device;

Optionally, the reference power control parameter set includes at least one of:

carrier identification or cell identification;

uplink BWP identification;

downlink BWP identification;

a power control parameter set;

and (5) power control parameter identification.

and/or

Optionally, the network side device further includes:

a receiving module, configured to send first indication information to the terminal device when the target path loss calculation reference signal RS is not configured or transmitted in the activated downlink bandwidth;

Optionally, the sending module is specifically configured to:

The network side device 800 provided in the embodiment of the present invention can implement each process implemented by the network side device in the method embodiment of fig. 4, and in order to avoid repetition, a description is omitted here.

According to the network side equipment 800 provided by the embodiment of the invention, the target power control parameter is sent to the terminal equipment through the sending module 801, so that the terminal equipment can conveniently control the uplink transmission power based on the target power control parameter configured by the network side, and the probability of inaccurate power control of the UE caused by that the corresponding power control parameter is not configured for the uplink transmission by the network side or the power control parameter is unavailable can be reduced.

Referring to fig. 9, fig. 9 is a block diagram of another terminal device according to an embodiment of the present invention. As shown in fig. 9, the terminal device 900 includes:

a first determining module 901, configured to determine, when at least one SRS resource set is transmitted in at least two transmission times, that an effective time of a transmission power control TPC is a starting transmission time of the at least two transmission times, or a starting transmission time of a first SRS resource;

Optionally, the terminal device further includes:

and the second determining module is used for determining that the value of the TPC is the sum of the values of the at least one TPC or the value of the first effective TPC in the values of the at least one TPC when the effective time of the at least one TPC exists in the at least two transmission times.

The terminal device 900 provided in the embodiment of the present invention can implement each process implemented by the terminal device in the method embodiment of fig. 5, and in order to avoid repetition, a description is omitted here.

In the terminal device 900 of the embodiment of the present invention, when at least one SRS resource set is transmitted in at least two transmission times, the first determining module 901 is configured to determine that the effective time of the TPC for controlling the transmission power is the starting transmission time of the at least two transmission times, or the starting transmission time of the first SRS resource, so that the determining manner of the effective time of the TPC in the case that at least one SRS resource set is transmitted in at least two transmission times is normalized, thereby performing the TPC for controlling the transmission power more accurately.

Fig. 10 is a block diagram of another terminal device according to an embodiment of the present invention. Referring to fig. 10, the terminal device 1000 includes, but is not limited to: radio frequency unit 1001, network module 1002, audio output unit 1003, input unit 1004, sensor 1005, display unit 1006, user input unit 1007, interface unit 1008, memory 1009, processor 1010, and power supply 1011. It will be appreciated by those skilled in the art that the terminal device structure shown in fig. 10 does not constitute a limitation of the terminal device, and the terminal device may include more or less components than illustrated, or may combine certain components, or may have a different arrangement of components. In the embodiment of the invention, the terminal equipment comprises, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer and the like.

The processor 1010 is configured to perform uplink transmission power control based on a target power control parameter configured by the network side; the target power control parameter includes a reference power control parameter, a first power control parameter or a second power control parameter, where the reference power control parameter is a power control parameter in a reference power parameter set, the first power control parameter is a power control parameter corresponding to historical uplink transmission, the second power control parameter is a power control parameter transmitted in an activated downlink bandwidth, and the bandwidth includes a bandwidth portion BWP or a carrier.

The embodiment of the invention carries out uplink transmission power control based on the reference power control parameter, the first power control parameter or the second power control parameter, thereby reducing the problem of inaccurate power control of the UE caused by that the network side does not configure the corresponding power control parameter for uplink transmission or the power control parameter is unavailable.

Optionally, the processor 1010 is further configured to:

Optionally, the reference power control parameter set includes at least one of:

carrier identification or cell identification;

uplink BWP identification;

downlink BWP identification;

a power control parameter set;

and (5) power control parameter identification.

and/or

It should be understood that, in the embodiment of the present invention, the radio frequency unit 1001 may be used to receive and send information or signals during a call, specifically, receive downlink data from a base station, and then process the downlink data with the processor 1010; and, the uplink data is transmitted to the base station. In general, the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 1001 may also communicate with networks and other devices through a wireless communication system.

The terminal device provides wireless broadband internet access to the user through the network module 1002, such as helping the user to send and receive e-mail, browse web pages, access streaming media, etc.

The audio output unit 1003 may convert audio data received by the radio frequency unit 1001 or the network module 1002 or stored in the memory 1009 into an audio signal and output as sound. Also, the audio output unit 1003 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the terminal device 1000. The audio output unit 1003 includes a speaker, a buzzer, a receiver, and the like.

The input unit 1004 is used for receiving an audio or video signal. The input unit 1004 may include a graphics processor (Graphics Processing Unit, GPU) 10041 and a microphone 10042, the graphics processor 10041 processing image data of still pictures or video obtained by an image capturing apparatus (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 1006. The image frames processed by the graphics processor 10041 may be stored in the memory 1009 (or other storage medium) or transmitted via the radio frequency unit 1001 or the network module 1002. Microphone 10042 may receive sound and may be able to process such sound into audio data. The processed audio data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 1001 in the case of a telephone call mode.

Terminal device 1000 can also include at least one sensor 1005, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 10061 according to the brightness of ambient light, and the proximity sensor can turn off the display panel 10061 and/or the backlight when the terminal device 1000 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when the accelerometer sensor is stationary, and can be used for recognizing the gesture (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking) and the like of the terminal equipment; the sensor 1005 may further include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which are not described herein.

The display unit 1006 is used to display information input by a user or information provided to the user. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 1007 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal device. Specifically, the user input unit 1007 includes a touch panel 10071 and other input devices 10072. Touch panel 10071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on touch panel 10071 or thereabout using any suitable object or accessory such as a finger, stylus, or the like). The touch panel 10071 can include two portions, a touch detection device and a touch controller. The touch detection device detects the touch azimuth of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1010, and receives and executes commands sent by the processor 1010. In addition, the touch panel 10071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 1007 may include other input devices 10072 in addition to the touch panel 10071. Specifically, other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein.

Further, the touch panel 10071 may be overlaid on the display panel 10061, and when the touch panel 10071 detects a touch operation thereon or thereabout, the touch operation is transmitted to the processor 1010 to determine a type of touch event, and then the processor 1010 provides a corresponding visual output on the display panel 10061 according to the type of touch event. Although in fig. 10, the touch panel 10071 and the display panel 10061 are two independent components for implementing the input and output functions of the terminal device, in some embodiments, the touch panel 10071 and the display panel 10061 may be integrated to implement the input and output functions of the terminal device, which is not limited herein.

The interface unit 1008 is an interface to which an external device is connected to the terminal apparatus 1000. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. Interface unit 1008 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within terminal device 1000 or may be used to transmit data between terminal device 1000 and an external device.

The memory 1009 may be used to store software programs as well as various data. The memory 1009 may mainly include a storage program area which may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and a storage data area; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, the memory 1009 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 1010 is a control center of the terminal device, and performs various functions of the terminal device and processes data by running or executing software programs and/or modules stored in the memory 1009 and calling data stored in the memory 1009 based on various interfaces and lines connecting various parts of the entire terminal device, thereby performing overall monitoring of the terminal device. The processor 1010 may include one or more processing units; preferably, the processor 1010 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 1010.

Terminal device 1000 can also include a power supply 1011 (e.g., a battery) for powering the various components, and preferably power supply 1011 can be logically connected to processor 1010 via a power management system whereby charge, discharge, and power consumption management functions can be implemented via the power management system.

In addition, the terminal device 1000 includes some functional modules, which are not shown, and will not be described herein.

Preferably, the embodiment of the present invention further provides a terminal device, which includes a processor 1010, a memory 1009, and a computer program stored in the memory 1009 and capable of running on the processor 1010, where the computer program when executed by the processor 1010 implements each process of the above power control method embodiment, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein.

Referring to fig. 11, fig. 11 is a block diagram of another network side device according to an embodiment of the present invention. As shown in fig. 11, the network-side device 1100 includes: a processor 1101, a memory 1102, a bus interface 1103 and a transceiver 1104, wherein the processor 1101, the memory 1102 and the transceiver 1104 are all connected to the bus interface 1103.

In this embodiment of the present invention, the network side device 1100 further includes: a computer program stored on the memory 1102 and executable on the processor 1101, which when executed by the processor 1101 performs the steps of:

Transmitting the target power control parameter to the terminal equipment;

Optionally, the reference power control parameter set includes at least one of:

carrier identification or cell identification;

uplink BWP identification;

downlink BWP identification;

a power control parameter set;

and (5) power control parameter identification.

and/or

Optionally, the computer program when executed by the processor 1101 is further configured to:

The embodiment of the invention also provides a terminal device, which comprises a processor, a memory and a computer program stored on the memory and capable of running on the processor, wherein the computer program realizes the following steps when being executed by the processor:

Optionally, the computer program is further configured to implement the following steps when executed by the processor:

The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the above-mentioned various processes of the power control method embodiment or the transmission power control parameter determining method embodiment, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims

1. A power control method, applied to a terminal device, comprising:

the target power control parameter comprises a reference power control parameter, a first power control parameter or a second power control parameter, wherein the reference power control parameter is a power control parameter in a reference power parameter set, the first power control parameter is a power control parameter corresponding to historical uplink transmission, the second power control parameter is a power control parameter transmitted in an activated downlink bandwidth, and the bandwidth comprises a bandwidth part BWP or a carrier;

the target power control parameter is one of the reference power control parameter, the first power control parameter and the second power control parameter, which is available and has the highest priority;

the second power control parameter has a higher priority than the reference power control parameter, which has a higher priority than the first power control parameter.

2. The method according to claim 1, wherein the performing uplink transmission power control based on the target power control parameter configured by the network side includes:

3. The method of claim 1, wherein the first power control parameter is: the most recent uplink transmission corresponds to the power control parameter.

4. The method of claim 1, wherein the set of reference power control parameters comprises at least one of:

carrier identification or cell identification;

uplink BWP identification;

downlink BWP identification;

a power control parameter set;

and (5) power control parameter identification.

5. The method of claim 4, wherein the step of determining the position of the first electrode is performed,

the set of power control parameters includes at least one of: a target received power set; a path loss compensation factor set; calculating a reference signal RS set by path loss; a closed loop power control identification set;

and/or

6. The method according to any one of claims 1 to 5, wherein, before the uplink transmission power control, the method further comprises:

7. The method according to any of claims 1 to 5, wherein the reference power control parameter is indicated by the network side device through a target bearer;

8. The method of claim 7, wherein the reference power control parameter is indicated by RRC signaling and SRI in DCI when the uplink transmission is PUSCH transmission.

9. The method of claim 7 wherein the reference power control parameter is indicated by RRC signaling and MAC CE when the uplink transmission is a PUCCH transmission.

10. The method of claim 7, wherein the reference power control parameter is indicated by RRC signaling when the uplink transmission is an SRS transmission.

11. The power control method is characterized by being applied to network side equipment and comprising the following steps of:

transmitting the target power control parameter to the terminal equipment;

the target power control parameter is used for uplink transmission power control of the terminal equipment, the target power control parameter comprises a reference power control parameter, a first power control parameter or a second power control parameter, the reference power control parameter is a power control parameter in a reference power parameter set, the first power control parameter is a power control parameter corresponding to historical uplink transmission, the second power control parameter is a power control parameter transmitted in an activated downlink bandwidth, and the bandwidth comprises a bandwidth part BWP or a carrier;

12. The method of claim 11, wherein the first power control parameter is a power control parameter corresponding to a most recent uplink transmission.

13. The method of claim 11, wherein the set of reference power control parameters comprises at least one of:

carrier identification or cell identification;

uplink BWP identification;

downlink BWP identification;

a power control parameter set;

and (5) power control parameter identification.

14. The method of claim 13, wherein the step of determining the position of the probe is performed,

and/or

15. The method according to any one of claims 11 to 14, further comprising:

16. The method according to any of claims 11 to 14, wherein said transmitting the target power control parameter to the terminal device comprises:

17. The method of claim 16, wherein the reference power control parameter is indicated by RRC signaling and SRI in DCI when the uplink transmission is PUSCH transmission.

18. The method of claim 16 wherein the reference power control parameter is indicated by RRC signaling and MAC CE when the uplink transmission is a PUCCH transmission.

19. The method of claim 16, wherein the reference power control parameter is indicated by RRC signaling when the uplink transmission is an SRS transmission.

20. A terminal device, comprising:

21. A network side device, comprising:

22. A terminal device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the power control method according to any of claims 1 to 10.

23. A network side device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the power control method of any of claims 11 to 19.

24. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the power control method according to any of claims 1 to 10; or to implement the steps of the power control method of any one of claims 11 to 19.