CN111278114A

CN111278114A - Power control method, terminal equipment and network side equipment

Info

Publication number: CN111278114A
Application number: CN201811613980.7A
Authority: CN
Inventors: 孙晓东; 孙鹏
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-12-27
Filing date: 2018-12-27
Publication date: 2020-06-12
Anticipated expiration: 2038-12-27
Also published as: CN111278114B

Abstract

The invention provides a power control method, terminal equipment and network side equipment, wherein the method comprises the following steps: transmitting a target PUCCH based on the target power control parameter; the target PUCCH carries target uplink control information UCI, the target UCI comprises part or all information in UCI corresponding to at least two first PUCCH resources, and the at least two first PUCCH resources are PUCCH resources corresponding to at least two downlink transmissions. The power control method provided by the invention can improve the accuracy of PUCCH transmission power control.

Description

Power control method, terminal equipment and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a power control method, a terminal device, and a network side device.

Background

In a Release 15New Radio (Release 15New Radio, Rel-15) New Radio (NR) system, downlink Transmission only considers a Single Transmission and Reception Point (TRP) (i.e., Single-TRP) Transmission scenario, as shown in fig. 1. Through one PUCCH resource indicated by the network side, the UE feeds back at least one of Hybrid Automatic Repeat request (HARQ) ACK Information, HARQ NACK Information, Channel State Information (CSI) and the like of single TRP downlink transmission on the PUCCH resource.

In a future new air interface system, for example, Release 16 (Rel-16) NR system, the downlink of both low frequency and high frequency scenarios may support multiple TRP (i.e., Multi-TRP) transmission, as shown in fig. 2. However, in the prior art, when downlink multi-TRP transmission is adopted, there is no solution on how to control transmission power of a PUCCH in a process of feeding back part or all of Uplink Control Information (UCI) corresponding to a plurality of downlink transmissions by the PUCCH.

Disclosure of Invention

The embodiment of the invention provides network side equipment, terminal equipment and network side equipment, and aims to provide a mode for carrying out power control on a PUCCH (physical uplink control channel) in the process of transmitting UCI (uplink control information) by utilizing the PUCCH so as to improve the accuracy of PUCCH transmission power control.

In order to solve the technical problem, 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:

transmitting a target PUCCH based on the target power control parameter;

the target PUCCH carries target uplink control information UCI, the target UCI comprises part or all information in UCI corresponding to at least two first PUCCH resources, and the at least two first PUCCH resources are PUCCH resources corresponding to at least two downlink transmissions.

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

sending an indication message to a terminal device, wherein the indication message is used for indicating a target power control parameter;

wherein the target power control parameter is used for transmitting a target PUCCH; the target PUCCH carries target uplink control information UCI, the target UCI comprises part or all information in UCI corresponding to at least two first PUCCH resources, and the at least two first PUCCH resources are PUCCH resources corresponding to at least two downlink transmissions.

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

a transmission module for transmitting a target PUCCH based on the target power control parameter;

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

a sending module, configured to send an indication message to a terminal device, where the indication message is used to indicate a target power control parameter;

In a fifth aspect, an embodiment of the present invention further provides a terminal device, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the power control method provided in the first aspect.

In a sixth aspect, an embodiment of the present invention further provides a network-side device, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the power control method provided in the second aspect.

In a seventh aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program 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.

In the embodiment of the invention, the target PUCCH carrying the target UCI is transmitted through the target power control parameter, a mode of carrying out power control on the PUCCH in the process of transmitting the UCI by utilizing the PUCCH is specified, and the accuracy of PUCCH transmission power control can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a structural diagram of a related art single TRP transmission;

fig. 2 is a structural diagram of multi-TRP transmission provided in the related art;

fig. 3 is a block diagram of a network system to which an embodiment of the present invention is applicable;

fig. 4 is a flowchart of a power control method provided by an embodiment of the present invention;

fig. 5 is one of schematic diagrams of PUCCH3 transmission power control provided by an embodiment of the present invention;

figure 6 is a second schematic diagram illustrating PUCCH3 transmission power control according to an embodiment of the present invention;

fig. 7 is a third schematic diagram illustrating PUCCH3 transmission power control according to an embodiment of the present invention;

fig. 8 is a flowchart of a power control method provided by an embodiment of the present invention;

fig. 9 is a structural diagram of a terminal device provided in an embodiment of the present invention;

fig. 10 is a block diagram of a network-side device according to an embodiment of the present invention;

fig. 11 is a block diagram of a terminal device according to still another embodiment of the present invention;

fig. 12 is a block diagram of a network device according to still another embodiment of the present invention.

Detailed Description

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

The terms first, second and the like in the description and in the claims of the present application 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 under appropriate circumstances such that embodiments of the application described herein may be implemented, for example, 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 that at least one of the connected objects, such as a and/or B and/or C, means that 7 cases are included that include a alone, B alone, C alone, and both a and B, B and C, a and C, and A, B and C.

The embodiment of the invention provides a power control method. Referring to fig. 3, fig. 3 is a structural diagram of a network system applicable to the embodiment of the present invention, as shown in fig. 3, including a terminal Device 11 and a network-side Device 12, where the terminal Device 11 may be a terminal-side Device such as a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device), and it should be noted that a specific type of the terminal Device 11 is not limited in the embodiment of the present invention. The network side device 12 may be a base station, for example: macro station, lteeenb, 5G NR NB, gNB, and the like; the network side device 12 may also be a small station, such as a Low Power Node (LPN) pico, femto, 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) and a plurality of Transmission Reception Points (TRPs) whose management is controlled. It should be noted that the specific type of the network-side device 12 is not limited in the embodiment of the present invention.

In this embodiment, for at least two downlink transmissions, for example, multiple transmission and Reception Point (Multi-TRP) transmissions, the network side device 12 may configure at least two PUCCH resources for the at least two downlink transmissions, so as to transmit Uplink Control Information (UCI) corresponding to the at least two downlink transmissions. The UCI may include at least one of Hybrid Automatic Repeat Request (HARQ) ACK Information, HARQ NACK Information, Channel State Information (CSI), uplink Scheduling Request (SR), and the like. The PUCCH resources, that is, transmission resources of the PUCCH, for example, time domain resources, frequency domain resources, and the like.

In addition, the network side device 12 may also predefine at least one PUCCH resource for the terminal device, so that, in a case that the terminal device 11 cannot simultaneously transmit the at least two PUCCHs, the terminal device 11 may transmit part or all of the UCI carried by the at least two PUCCHs by using a PUCCH in the predefined at least one PUCCH.

Terminal device 11 may transmit the target PUCCH based on the target power control parameter. The target PUCCH may be any PUCCH that may carry the target UCI, for example, may be one of the predefined PUCCH resources. The target UCI may include part or all of information in UCI corresponding to at least two downlink transmissions.

In practical applications, the terminal device 11 may transmit part or all of information in UCI corresponding to the at least two PUCCHs by using the target PUCCH, when the at least two PUCCHs cannot be simultaneously transmitted.

The target power control parameter may be a power control parameter configured by the network side device 12 for the target PUCCH, or a power control parameter determined based on power control parameters corresponding to the at least two PUCCHs, or a power control parameter predefined by a protocol, which is not limited in this embodiment.

In practical applications, the network side device may configure the power Control parameter set through a high-layer signaling (e.g., a Radio Resource Control (RRC) signaling), and may further determine, through the beam indication information, a set of power Control parameters in the power Control parameter set to be used for PUCCH transmission.

In this embodiment, the target power control parameter is used to transmit the target PUCCH, so that a power control method for the PUCCH in the UCI transmission process using the PUCCH is specified, and accuracy of PUCCH transmission power control can be improved.

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

and step 401, transmitting the target PUCCH based on the target power control parameter.

The target PUCCH bears target uplink control information UCI, and the target UCI comprises part or all of information in UCI borne by at least two first PUCCH resources corresponding to downlink transmission.

In this embodiment, the at least two downlink transmissions may be at least two downlink TRP transmissions, for example. The UCI may include at least one of HARQ ACK information, HARQ NACK information, CSI, SR, and the like. The target UCI may include part or all of UCI carried by PUCCH resources corresponding to at least two downlink transmissions. For example, in a case that the at least two downlink transmissions include a first downlink transmission and a second downlink transmission, the target UCI may include UCI carried by a PUCCH resource corresponding to the first downlink transmission and UCI carried by a PUCCH resource corresponding to the second downlink transmission, may also include one of UCI carried by a PUCCH resource corresponding to the first downlink transmission and UCI carried by a PUCCH resource corresponding to the second downlink transmission, and may also include partial control information in the UCI carried by the PUCCH resource corresponding to the first downlink transmission and partial control information in the UCI carried by the PUCCH resource corresponding to the second downlink transmission, which is not limited in this embodiment.

The target PUCCH may be any PUCCH capable of carrying the target UCI. For example, it may be one of the predefined PUCCHs. It should be noted that the transmission resource of the target PUCCH may be preconfigured by the network side, or may be a transmission resource associated with the PUCCH resources corresponding to the at least two downlink transmissions, which is not limited in this embodiment.

The target power control parameter may be a power control parameter configured by the network side device for the target PUCCH, or a power control parameter determined based on power control parameters corresponding to at least two first PUCCHs, or a power control parameter predefined by a protocol, which is not limited in this embodiment.

It should be noted that the at least two first PUCCHs are at least two PUCCHs corresponding to downlink transmission, and the first PUCCH resources are transmission resources of the first PUCCH.

The target power control parameter may include, but is not limited to, at least one of a target received power set, a target received power, a set of path loss calculation reference signal identifiers, a closed loop power control procedure identifier, and a transmission power control.

Optionally, before transmitting the target PUCCH based on the target power control parameter, the method further includes:

and receiving an indication message from a network side device, wherein the indication message is used for indicating the target power control parameter.

In this embodiment, the indication message may be a high-level indication message, for example, an RRC message; the message may also be a Downlink Control Information (DCI) message, which is not limited in this embodiment.

The embodiment of the invention indicates the target power control parameter through the indication message sent by the network side equipment, and can improve the flexibility of power control.

Optionally, the indication message includes a power control parameter corresponding to a first PUCCH, where the first PUCCH is a PUCCH corresponding to the at least two downlink transmissions;

after receiving the indication message from the network side device, the method further includes:

and determining the target power control parameter according to the power control parameter corresponding to the first PUCCH.

In this embodiment, the indication message may be an RRC message. Specifically, the terminal device may receive an indication message sent by the network side device, and may determine the target power control parameter according to the power control parameter corresponding to the first PUCCH carried in the indication message. For example, a power control parameter may be selected from power control parameters corresponding to the first PUCCH as the target power control parameter, or the target power control parameter may be obtained by calculating the power control parameter corresponding to the first PUCCH.

The first PUCCH is a PUCCH corresponding to at least two downlink transmissions.

In this embodiment, the target power control parameter is determined by using the power control parameter corresponding to the first PUCCH, so that signaling overhead can be saved.

Optionally, the target power control parameter is: and the power control parameter is selected from the power control parameters corresponding to the first PUCCH.

In this embodiment, a power control parameter corresponding to a certain PUCCH may be selected from the first PUCCH according to a preset rule, or may be randomly selected from the first PUCCH, which is not limited in this embodiment.

Optionally, when the network side does not configure the power control parameter for the target PUCCH, the power control parameter selected from the power control parameters corresponding to the first PUCCH may be used as the power control parameter of the target PUCCH.

For example, as shown in fig. 6, for Multi-TRP transmission, if the network side configures two non-orthogonal PUCCH resources, that is, PUCCH1 resource and PUCCH2 resource, HARQ ACK/NACK information and CSI corresponding to two downlink transmissions may be transmitted on PUCCH3 predefined by the network side. When the power control parameter of PUCCH3 is not configured on the network side, PUCCH3 may adopt the power control parameter corresponding to PUCCH 1.

In practical applications, the network side may configure a power control parameter set for the PUCCH1 through RRC messages, and further may determine a set of power control parameters for PUCCH1 transmission from the power control parameter set through beam indication information. Among them, the power control parameter of PUCCH3 may multiplex the power control parameter of PUCCH 1.

In fig. 5, P0 denotes a target received power, PL ref denotes a path loss calculation reference signal flag, and CL denotes a closed loop power control process flag.

Optionally, the target power control parameter is one of:

a power control parameter corresponding to any one of the first PUCCHs;

a power control parameter corresponding to the PUCCH with the lowest PUCCH resource identifier in the first PUCCH resources;

a power control parameter corresponding to the PUCCH with the highest PUCCH resource identification in the first PUCCH resources; or

And the power control parameter corresponds to a second PUCCH in the first PUCCH, wherein the second PUCCH is a PUCCH in the first PUCCH, and the transmission beam of the second PUCCH is the same as that of the target PUCCH.

The present embodiment is explained below with reference to examples:

example one: in the case where the first PUCCH includes PUCCH1 and PUCCH2, the target power control parameter may be a power control parameter corresponding to PUCCH1 or a power control parameter corresponding to PUCCH 2.

Example two: in the case where the first PUCCH includes PUCCH1 and PUCCH2, and the PUCCH resource identity of the PUCCH1 resource is lower than the PUCCH resource identity of the PUCCH2 resource, the target power control parameter may include a power control parameter corresponding to the PUCCH with the lowest PUCCH resource identity, that is, a power control parameter corresponding to PUCCH 1.

Example three: in the case where the first PUCCH includes PUCCH1 and PUCCH2, and the PUCCH resource identity of the PUCCH1 resource is lower than the PUCCH resource identity of the PUCCH2 resource, the target power control parameter may include a power control parameter corresponding to the PUCCH with the highest PUCCH resource identity, that is, a power control parameter corresponding to PUCCH 2.

Example four: in case that the first PUCCH includes PUCCH1 and PUCCH2, and the transmission beam of PUCCH1 is the same as that of the target PUCCH, the target power control parameter may include a power control parameter corresponding to the PUCCH which is the same as the target PUCCH transmission beam, that is, a power control parameter corresponding to PUCCH 1.

Note that the PUCCH1 resource is a transmission resource of PUCCH1, and the PUCCH2 resource is a transmission resource of PUCCH 2.

Optionally, the indication message includes a first power control parameter, and the target power control parameter is the first power control parameter, or a power control parameter selected by the terminal device from the first power control parameter.

In this embodiment, the indication message may be an RRC message. The first power control parameter may include at least one set of power control parameters.

Specifically, under the condition that the first power control parameter only includes one group of power control parameters, the terminal device may directly transmit the target PUCCH using the first power control parameter, that is, the target power control parameter is the first power control parameter.

In the case that the first power control parameter includes at least two sets of power control parameters, the terminal device may select one set of power control parameters from the first power control parameters to transmit the target PUCCH, that is, the target power control parameter is the power control parameter selected from the first power control parameters.

It should be noted that each set of power control parameters may include at least one of a target received power set, a target received power, a set of path loss calculation reference signal identifiers, a closed-loop power control process identifier, and a transmit power control TPC.

Optionally, the first power control parameter is a power control parameter configured for the target PUCCH by the network side device.

In this embodiment, the first power control parameter may be a power control parameter configured by the network side device specifically for the target PUCCH, so that accuracy of power control may be improved.

Optionally, the first power control parameter is indicated by beam indication information corresponding to a first PUCCH, and the first PUCCH is a PUCCH corresponding to the at least two downlink transmissions.

In practical application, when the network side device configures the power control parameter for the target PUCCH, the power control parameter may be indicated by the beam indication information corresponding to the first PUCCH.

For example, as shown in fig. 6, for Multi-TRP transmission, if the network side configures two non-orthogonal PUCCH resources, that is, PUCCH1 resource and PUCCH2 resource, the HARQ information and CSI corresponding to the two downlink transmissions are transmitted on PUCCH3 resource predefined by the network side. Wherein the HARQ information comprises at least one of HARQ ACK information and HARQ NACK information.

When the network side device configures the power control parameter of PUCCH3, the power control parameter of PUCCH3 may be determined by transmitting corresponding beam indication information in PUCCH 1.

In practical applications, the network side device may configure a power control parameter set for the PUCCH3 through RRC signaling, and further may determine a set of power control parameters for PUCCH transmission from the power control parameter set through the PUCCH1 transmitting corresponding beam indication information.

Note that the PUCCH1 resource and the PUCCH2 resource are the first PUCCH resource, and the PUCCH3 resource is the target PUCCH resource.

In fig. 6, Index indicates Index, P0 indicates target received power, PL ref indicates a path loss calculation reference signal identifier, and CL indicates a closed loop power control procedure identifier.

Optionally, the indication message includes identification information for indicating a power control parameter;

and selecting the target power control parameter from third power control parameters according to the identification information, wherein the third power control parameters are pre-agreed by a protocol or are sent by network side equipment.

In this embodiment, the indication message may be DCI information. The identification information may be, for example, an index value of the power control parameter. Specifically, after receiving the identification information carried by the indication message, the terminal device may determine the target power control parameter from at least one group of power control parameters pre-agreed by a protocol or sent by the network side device based on the identification information, that is, the identification information is the power control parameter of the identification information carried by the indication message. For example, if the DCI indicates 01, the power control parameter corresponding to 01 is acquired as the target power control parameter.

It should be noted that the third power control parameter may be at least one set of power control parameters predefined by a protocol, or may be at least one set of power control parameters sent by a receiving network side device through an RRC message. Each set of power control parameters may include at least one of a target received power set, a target received power, a set of path loss calculation reference signal identifiers, a closed-loop power control process identifier, and a transmit power control TPC.

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

a target set of received powers or a target received power;

a path loss calculation reference signal identifier set or a path loss calculation reference signal identifier;

a closed Loop power control Process identification (i.e., Close Loop Process Index);

the transmit power controls the TPC.

Optionally, at least one of the index value of the target received power, the value of the path loss calculation reference signal identifier, the value of the closed-loop power control process identifier, and the value of the path loss calculation reference signal identifier is 0.

Optionally, the target power control parameter includes a first TPC, and a value of the first TPC is one of:

a value of one of TPCs corresponding to the first PUCCH;

the sum of TPC values corresponding to the first PUCCH;

the maximum value or the minimum value in TPC corresponding to the first PUCCH;

wherein the first PUCCH is a PUCCH corresponding to the at least two downlink transmissions.

In an embodiment, the value of the first TPC may be a value of any one of the TPCs corresponding to the first PUCCH. For example, the first PUCCH includes PUCCH1 and PUCCH2, and the value of the first TPC may be a value of a TPC corresponding to PUCCH1 or a value of a TPC corresponding to PUCCH 2.

For example, as shown in fig. 7, for Multi-TRP transmission, if two PUCCH resources with non-orthogonal time domain resources or frequency domain resources, that is, PUCCH1 resource and PUCCH2 resource, are configured on the network side, HARQ information and CSI corresponding to two downlink transmissions are transmitted on PUCCH3 predefined by the network side. If PUCCH1 corresponds to TPC1 and PUCCH2 corresponds to TPC2, then PUCCH3 may adopt TPC corresponding to PUCCH1, that is, TPC 1. Wherein the HARQ information comprises at least one of HARQ ACK information and HARQ NACK information.

In another embodiment, the value of the first TPC may be a sum of values of TPCs corresponding to the first PUCCH. For example, the first PUCCH includes PUCCH1 and PUCCH2, and the value of the first TPC may be the sum of the value of the TPC corresponding to PUCCH1 and the value of the TPC corresponding to PUCCH 2.

In another embodiment, the value of the first TPC may be a maximum value or a minimum value among the TPCs corresponding to the first PUCCH. For example, the first PUCCH includes PUCCH1 and PUCCH2, and the value of the TPC corresponding to PUCCH1 is greater than the value of the TPC corresponding to PUCCH2, the value of the first TPC may be the value of the TPC corresponding to PUCCH1 in the case where the value of the first TPC is the maximum value among the TPCs corresponding to the first PUCCH; in the case where the value of the first TPC is the minimum value among the TPCs corresponding to the first PUCCH, the value of the first TPC may be the value of the TPC corresponding to PUCCH 2.

Optionally, the target PUCCH resource is associated with PUCCH resources corresponding to the at least two downlink transmissions.

For example, the transmission resources of the PUCCH corresponding to the at least two downlink transmissions include PUCCH1 resources and PUCCH2 resources, and the transmission resource of the target PUCCH may include at least one of PUCCH1 resources and PUCCH2 resources.

The following describes embodiments of the present invention with reference to examples:

when the terminal device cannot simultaneously transmit PUCCH1 and PUCCH2, the terminal device transmits information carried by PUCCH1 resource and/or PUCCH2 resource on PUCCH3, wherein the first type of power control parameter of PUCCH3 may be determined as follows:

when the first type power control parameter corresponding to the PUCCH3 is configured by RRC, indicating the first type power control parameter according to the beam indication information of the PUCCH1 or PUCCH 2;

under the condition that the RRC does not configure the first type power control parameter corresponding to the PUCCH3, determining the first type power control parameter corresponding to the PUCCH3 according to the first type power control parameter corresponding to the PUCCH1 or PUCCH 2;

it should be noted that the first type of power control parameter may include at least one of a target received power set, a target received power, a set of path loss calculation reference signal identifiers, and a closed loop power control procedure identifier.

The closed-loop power control of the PUCCH3 may be adjusted in any one of the following manners:

adjusting closed-loop power control of PUCCH3 according to TPC corresponding to PUCCH1 or PUCCH 2;

adjusting closed-loop power control of PUCCH3 according to the sum of TPCs corresponding to PUCCH1 and PUCCH 2;

adjusting closed-loop power control of PUCCH3 according to the maximum or minimum value in corresponding TPCs of PUCCH1 and PUCCH 2;

the closed loop power control of PUCCH3 is reset or takes the value 0.

The embodiment of the invention can realize the power control of the PUCCH under the condition that Multi-TRP transmission and the PUCCH need to simultaneously feed back the HARQ ACK/NACK information and CSI corresponding to a plurality of downlink transmissions, and the terminal equipment does not support Multi-PUCCH transmission, can improve the accuracy of PUCCH transmission power control, and further improve the PUCCH performance.

The embodiment of the invention also provides a power control method which is applied to the network side equipment. Referring to fig. 8, fig. 8 is a flowchart of a power control method according to an embodiment of the present invention, as shown in fig. 8, including the following steps:

step 801, sending an indication message to a terminal device, wherein the indication message is used for indicating a target power control parameter;

In this embodiment, the indication message may be a high-level indication message, for example, an RRC message; the DCI may also be a DCI message, which is not limited in this embodiment.

The at least two downlink transmissions may be at least two downlink TRP transmissions, for example. The UCI may include at least one of HARQ ACK information, HARQ NACK information, CSI, SR, and the like.

The target UCI may include part or all of UCI carried by PUCCH resources corresponding to at least two downlink transmissions. For example, in a case that the at least two downlink transmissions include a first downlink transmission and a second downlink transmission, the target UCI may include UCI carried by a PUCCH resource corresponding to the first downlink transmission and UCI carried by a PUCCH resource corresponding to the second downlink transmission, may also include one of UCI carried by a PUCCH resource corresponding to the first downlink transmission and UCI carried by a PUCCH resource corresponding to the second downlink transmission, and may also include partial control information in the UCI carried by the PUCCH resource corresponding to the first downlink transmission and partial control information in the UCI carried by the PUCCH resource corresponding to the second downlink transmission, which is not limited in this embodiment.

In this embodiment, the network side device sends the indication message to the terminal device, so that the terminal device can transmit the target PUCCH by using at least the target power control parameter indicated by the message, and further, power control on transmission of the target PUCCH can be achieved, and flexibility of power control can be improved.

the target power control parameter is a power control parameter determined by the terminal device based on a power control parameter corresponding to the first PUCCH.

In this embodiment, the indication message may be an RRC message. Specifically, the network side device may send the power control parameter corresponding to the first PUCCH to the terminal device through the RRC message, so that the terminal device may determine the target power control parameter based on the power control parameter corresponding to the first PUCCH, thereby saving signaling overhead.

Optionally, the target power control parameter is one of:

a power control parameter corresponding to any one of the first PUCCHs;

The present embodiment is explained below with reference to examples:

the target power control parameter is a power control parameter selected by the terminal device from third power control parameters according to the identification information, and the third power control parameter is pre-agreed by a protocol or sent by a network side device.

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

a target set of received powers or a target received power;

closed loop power control process identification;

the transmit power controls the TPC.

a value of one of TPCs corresponding to the first PUCCH;

the sum of TPC values corresponding to the first PUCCH;

the maximum value or the minimum value in TPC corresponding to the first PUCCH;

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

a transmitting module 900, configured to transmit a target PUCCH based on the target power control parameter;

Optionally, the terminal device 900 further includes:

a receiving module, configured to receive, before transmitting a target PUCCH based on a target power control parameter, an indication message from a network side device, where the indication message is used to indicate the target power control parameter.

the terminal apparatus 900 further includes:

a determining module, configured to determine the target power control parameter according to the power control parameter corresponding to the first PUCCH after the indication message is received from the network side device.

Optionally, the target power control parameter is one of:

a power control parameter corresponding to any one of the first PUCCHs;

the terminal apparatus 900 further includes:

and a selecting module, configured to select the target power control parameter from third power control parameters according to the identification information after the indication message is received from the network side device, where the third power control parameter is pre-agreed by a protocol or is sent by the network side device.

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

a target set of received powers or a target received power;

closed loop power control process identification;

the transmit power controls the TPC.

a value of one of TPCs corresponding to the first PUCCH;

the sum of TPC values corresponding to the first PUCCH;

the maximum value or the minimum value in TPC corresponding to the first PUCCH;

The terminal device 900 provided in the embodiment of the present invention can implement each process implemented by the terminal device in the foregoing method embodiments, and is not described here again to avoid repetition.

Step 801 of the terminal device 900 according to the embodiment of the present invention, sending an indication message to the terminal device, where the indication message is used to indicate a target power control parameter; wherein the target power control parameter is used for transmitting a target PUCCH; the target PUCCH bears the target uplink control information UCI, the target UCI comprises part or all information in UCI corresponding to at least two first PUCCH resources, the at least two first PUCCH resources are at least two PUCCH resources corresponding to downlink transmission, a mode for carrying out power control on the PUCCH in the process of transmitting the UCI by utilizing the PUCCH is specified, and the accuracy of PUCCH transmission power control can be improved.

Referring to fig. 10, fig. 10 is a structural diagram of a network side device according to an embodiment of the present invention. As shown in fig. 10, the network-side device 1000 includes:

a sending module 1001, configured to send an indication message to a terminal device, where the indication message is used to indicate a target power control parameter;

Optionally, the target power control parameter is one of:

a power control parameter corresponding to any one of the first PUCCHs;

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

a target set of received powers or a target received power;

closed loop power control process identification;

the transmit power controls the TPC.

a value of one of TPCs corresponding to the first PUCCH;

the sum of TPC values corresponding to the first PUCCH;

the maximum value or the minimum value in TPC corresponding to the first PUCCH;

The network side device 1000 according to the embodiment of the present invention can implement each process implemented by the network side device in the foregoing method embodiments, and for avoiding repetition, details are not described here.

In the network side device 1000 according to the embodiment of the present invention, the sending module 1001 is configured to send an indication message to the terminal device, where the indication message is used to indicate a target power control parameter; wherein the target power control parameter is used for transmitting a target PUCCH; the target PUCCH carries target uplink control information UCI, the target UCI comprises part or all information in UCI corresponding to at least two first PUCCH resources, and the at least two first PUCCH resources are PUCCH resources corresponding to at least two downlink transmissions. And sending an indication message to the terminal equipment through the network side equipment to indicate the target power control parameter, so that the terminal equipment can transmit the target PUCCH by using the target power control parameter, and further can realize power control on target PUCCH transmission.

Fig. 11 is a block diagram of a terminal device according to still another embodiment of the present invention. Referring to fig. 11, the terminal device 1100 includes, but is not limited to: radio frequency unit 1101, network module 1102, audio output unit 1103, input unit 1104, sensor 1105, display unit 1106, user input unit 1107, interface unit 1108, memory 11011, processor 1110, and electrical first 1111. Those skilled in the art will appreciate that the terminal device configuration shown in fig. 11 does not constitute a limitation of the terminal device, and that the terminal device may include more or fewer components than shown, or combine certain components, or a different arrangement of components. In the embodiment of the present invention, the terminal device includes, 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 radio frequency unit 1101 is configured to transmit a target PUCCH based on a target power control parameter;

The embodiment of the invention transmits the target PUCCH bearing the target UCI through the target power control parameter, specifies a mode of carrying out power control on the PUCCH in the process of transmitting the UCI by utilizing the PUCCH, and can improve the accuracy of PUCCH transmission power control.

Optionally, the radio frequency unit 1101 is further configured to:

and before transmitting the target PUCCH based on the target power control parameter, receiving an indication message from a network side device, wherein the indication message is used for indicating the target power control parameter.

the processor 1110 is configured to:

and after receiving the indication message from the network side equipment, determining the target power control parameter according to the power control parameter corresponding to the first PUCCH.

Optionally, the target power control parameter is one of:

a power control parameter corresponding to any one of the first PUCCHs;

the processor 1110 is further configured to:

after receiving the indication message from the network side device, selecting the target power control parameter from third power control parameters according to the identification information, wherein the third power control parameters are pre-agreed by a protocol or sent by the network side device.

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

a target set of received powers or a target received power;

closed loop power control process identification;

the transmit power controls the TPC.

a value of one of TPCs corresponding to the first PUCCH;

the sum of TPC values corresponding to the first PUCCH;

the maximum value or the minimum value in TPC corresponding to the first PUCCH;

It should be understood that, in the embodiment of the present invention, the radio frequency unit 1101 may be configured to receive and transmit signals during a message transmission or a call, and specifically, receive downlink data from a base station and then process the received downlink data to the processor 1110; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 1101 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 1101 may also communicate with a network and other devices through a wireless communication system.

The terminal device provides wireless broadband internet access to the user through the network module 1102, such as helping the user send and receive e-mails, browse web pages, and access streaming media.

The audio output unit 1103 may convert audio data received by the radio frequency unit 1101 or the network module 1102 or stored in the memory 11011 into an audio signal and output as sound. Also, the audio output unit 1103 can also provide audio output related to a specific function performed by the terminal device 1100 (e.g., a call signal reception sound, a message reception sound, and the like). The audio output unit 1103 includes a speaker, a buzzer, a receiver, and the like.

The input unit 1104 is used to receive audio or video signals. The input Unit 1104 may include a Graphics Processing Unit (GPU) 11041 and a microphone 11042, and the Graphics processor 11041 processes image data of still pictures or video obtained by an image capturing device, such as a camera, in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 1106. The image frames processed by the graphic processor 11041 may be stored in the memory 11011 (or other storage medium) or transmitted via the radio frequency unit 1101 or the network module 1102. The microphone 11042 may receive sound and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 1101 in case of the phone call mode.

Terminal device 1100 also includes at least one sensor 1105, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 11061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 11061 and/or the backlight when the terminal device 1100 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal device posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 1105 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., and will not be described in detail herein.

The display unit 1106 is used to display information input by a user or information provided to the user. The Display unit 1106 may include a Display panel 11061, and the Display panel 11061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 1107 is operable to receive input numeric or character information and generate key signal inputs relating to user settings and function control of the terminal device. Specifically, the user input unit 1107 includes a touch panel 11071 and other input devices 11072. The touch panel 11071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 11071 (e.g., operations by a user on or near the touch panel 11071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 11071 may include two portions of a touch detection device and a touch controller. The touch detection device detects the touch direction 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 sensing device, converts the touch information into touch point coordinates, and sends the touch point coordinates to the processor 1110, and receives and executes commands sent from the processor 1110. In addition, the touch panel 11071 may be implemented by various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 1107 may include other input devices 11072 in addition to the touch panel 11071. In particular, the other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 11071 can be overlaid on the display panel 11061, and when the touch panel 11071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 1110 to determine the type of the touch event, and then the processor 1110 provides a corresponding visual output on the display panel 11061 according to the type of the touch event. Although the touch panel 11071 and the display panel 11061 are shown in fig. 11 as two independent components to implement the input and output functions of the terminal device, in some embodiments, the touch panel 11071 and the display panel 11061 may be integrated to implement the input and output functions of the terminal device, and is not limited herein.

The interface unit 1108 is an interface for connecting an external device to the terminal apparatus 1100. For example, the external device may include a wired or wireless headset port, an external electrical first (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 1108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within terminal apparatus 1100 or may be used to transmit data between terminal apparatus 1100 and external devices.

The memory 11011 may be used to store software programs as well as various data. The memory 11011 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. In addition, the memory 11011 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 1110 is a control center of the terminal device, connects various parts of the entire terminal device by using various interfaces and lines, and performs various functions of the terminal device and processes data by operating or executing software programs and/or modules stored in the memory 11011 and calling data stored in the memory 11011, thereby integrally monitoring the terminal device. Processor 1110 may include one or more processing units; preferably, the processor 1110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1110.

The terminal device 1100 may further include an electrical first 1111 (e.g., a battery) for supplying power to various components, and preferably, the electrical first 1111 may be logically connected to the processor 1110 through an electrical first management system, so as to implement functions of managing charging, discharging, and power consumption through the electrical first management system.

In addition, the terminal device 1100 includes some functional modules that are not shown, and are not described in detail herein.

Optionally, an embodiment of the present invention further provides a terminal device, which includes a processor 1110, a memory 11011, and a computer program that is stored in the memory 11011 and is executable on the processor 1110, where the computer program, when executed by the processor 1110, implements each process of the foregoing power control method embodiment, and can achieve the same technical effect, and details are not described here to avoid repetition.

Referring to fig. 12, fig. 12 is a block diagram of a network side device according to another embodiment of the present invention. As shown in fig. 12, the network-side device 1200 includes: a processor 1201, a memory 1202, a bus interface 1203, and a transceiver 1204, wherein the processor 1201, the memory 1202, and the transceiver 1204 are all connected to the bus interface 1203.

In this embodiment of the present invention, the network side device 1200 further includes: a computer program stored on the memory 1202 and executable on the processor 1201, the computer program when executed by the processor 1201 performing the steps of:

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

a target set of received powers or a target received power;

closed loop power control process identification;

the transmit power controls the TPC.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the foregoing power control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an 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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A power control method is applied to a terminal device and comprises the following steps:

transmitting a target PUCCH based on the target power control parameter;

2. The power control method of claim 1, wherein before transmitting the target PUCCH based on the target power control parameter, the method further comprises:

3. The power control method according to claim 2, wherein the indication message includes power control parameters corresponding to a first PUCCH, and the first PUCCH is a PUCCH corresponding to the at least two downlink transmissions;

4. The power control method of claim 3, wherein the target power control parameter is: and the power control parameter is selected from the power control parameters corresponding to the first PUCCH.

5. The method of claim 4, wherein the target power control parameter is one of:

a power control parameter corresponding to any one of the first PUCCHs;

6. The power control method according to claim 2, wherein the indication message includes a first power control parameter, and the target power control parameter is the first power control parameter or a power control parameter selected by the terminal device from the first power control parameter.

7. The power control method according to claim 6, wherein the first power control parameter is a power control parameter configured for the target PUCCH by the network side device.

8. The power control method according to claim 7, wherein the first power control parameter is indicated by beam indication information corresponding to a first PUCCH, and the first PUCCH is a PUCCH corresponding to the at least two downlink transmissions.

9. The power control method according to claim 2, wherein the indication message includes identification information for indicating the power control parameter;

10. The power control method of claim 1, wherein the target power control parameter comprises at least one of:

a target set of received powers or a target received power;

closed loop power control process identification;

the transmit power controls the TPC.

11. The power control method of claim 10, wherein at least one of the index value of the target received power, the value of the path loss calculation reference signal indicator, the value of the closed loop power control procedure indicator, and the value of the path loss calculation reference signal indicator is 0.

12. The power control method of claim 1, wherein the target power control parameter comprises a first TPC having a value that is one of:

a value of one of TPCs corresponding to the first PUCCH;

the sum of TPC values corresponding to the first PUCCH;

the maximum value or the minimum value in TPC corresponding to the first PUCCH;

13. The method of claim 1, wherein the target PUCCH resource is associated with PUCCH resources corresponding to the at least two downlink transmissions.

14. A power control method is applied to a network side device, and comprises the following steps:

wherein the target power control parameter is used for transmitting a target PUCCH; the target PUCCH bears target uplink control information UCI, the target UCI comprises part or all information in UCI corresponding to at least two first PUCCH resources, and the at least two first PUCCH resources are PUCCH resources corresponding to at least two downlink transmissions.

15. The power control method according to claim 14, wherein the indication message includes a power control parameter corresponding to a first PUCCH, and the first PUCCH is a PUCCH corresponding to the at least two downlink transmissions;

16. The power control method according to claim 14, wherein the indication message includes a first power control parameter, and the target power control parameter is the first power control parameter or a power control parameter selected by the terminal device from the first power control parameter.

17. The power control method according to claim 16, wherein the first power control parameter is a power control parameter configured by the network side device for the target PUCCH.

18. The power control method according to claim 17, wherein the first power control parameter is indicated by beam indication information corresponding to a first PUCCH, and the first PUCCH is a PUCCH corresponding to the at least two downlink transmissions.

19. The power control method of claim 14, wherein the indication message includes identification information for indicating a power control parameter;

20. The power control method of claim 14, wherein the target power control parameter comprises at least one of:

a target set of received powers or a target received power;

closed loop power control process identification;

the transmit power controls the TPC.

21. The method of claim 14, wherein the target PUCCH resource is associated with a PUCCH resource corresponding to the at least two downlink transmissions.

22. A terminal device is characterized by being applied to a terminal device and comprising:

23. The terminal device of claim 22, wherein the terminal device further comprises:

24. The terminal device of claim 23, wherein the indication message comprises a power control parameter corresponding to a first PUCCH, and the first PUCCH is a PUCCH corresponding to the at least two downlink transmissions;

the terminal device further includes:

25. The terminal device of claim 23, wherein the indication message comprises a first power control parameter, and wherein the target power control parameter is the first power control parameter or a power control parameter selected by the terminal device from the first power control parameter.

26. The terminal device according to claim 25, wherein the first power control parameter is a power control parameter configured by the network side device for the target PUCCH.

27. The terminal device according to claim 23, wherein the indication message comprises identification information for indicating power control parameters;

the terminal device further includes:

28. A network side device, applied to a network side device, includes:

29. The network-side device of claim 28, wherein the indication message includes a power control parameter corresponding to a first PUCCH, and the first PUCCH is a PUCCH corresponding to the at least two downlink transmissions;

30. The network-side device of claim 28, wherein the indication message includes a first power control parameter, and the target power control parameter is the first power control parameter or a power control parameter selected by the terminal device from the first power control parameter.

31. The network-side device of claim 30, wherein the first power control parameter is a power control parameter configured by the network-side device for the target PUCCH.

32. The network-side device of claim 28, wherein the indication message includes identification information for indicating a power control parameter;

33. A terminal device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the power control method according to any one of claims 1 to 13.

34. A network-side device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the power control method according to any one of claims 14 to 21.

35. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the power control method according to one of the claims 1 to 13, or carries out the steps of the power control method according to one of the claims 14 to 21.