CN110769491B

CN110769491B - Uplink power control method and device

Info

Publication number: CN110769491B
Application number: CN201810844513.9A
Authority: CN
Inventors: 孙晓东; 孙鹏; 潘学明
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-07-27
Filing date: 2018-07-27
Publication date: 2021-10-12
Anticipated expiration: 2038-07-27
Also published as: CN110769491A

Abstract

The invention provides an uplink power control method and equipment, wherein the method comprises the following steps: sending Downlink Control Information (DCI), wherein the DCI comprises related parameters for controlling the power of uplink signals, the related parameters are related to the number of target ports of terminal equipment, or the related parameters are related to the number of the target ports of the terminal equipment and the total number of the ports, and the target ports are ports used for transmitting the uplink signals by the terminal equipment; the uplink signal comprises at least one of a Physical Uplink Shared Channel (PUSCH) and a Sounding Reference Signal (SRS). In the embodiment of the present invention, because the relevant parameters for controlling the uplink signal power contained in the DCI are related to the number of target ports actually used for transmitting the uplink signal in the terminal device, the uplink power can be more accurately and reasonably controlled, and the total actual uplink power of the uplink signal is increased, thereby improving the uplink coverage and the uplink transmission rate of the uplink signal.

Description

Uplink power control method and device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and a device for controlling uplink power.

Background

Power control, which enables a radio signal to reach a receiver with reasonable power, is an important technique in a wireless communication system.

In the fifth generation (5)^thGeneration, 5G) mobile communication system, the Physical Uplink Shared Channel (PUSCH) supports both codebook-based and non-codebook-based transmission modes. In any of the two transmission modes, for one PUSCH, uplink power is equally distributed among all antenna ports (hereinafter referred to as ports) corresponding to the transmission mode, where the ports corresponding to the transmission mode may include a zero port and a non-zero port. And for an uplink fractional bandwidth b on a carrier f of a serving cell c, the uplink power (uplink total power) of the PUSCH can be determined by the following formula:

wherein, P_PUSCH,b,f,c(i,j,q_dL) represents the uplink total power of the PUSCH, i represents the transmission time of the PUSCH, j represents the target receiving power and the path loss compensation factor value identification of the PUSCH, and q represents the uplink total power of the PUSCH_dThe path loss calculation is represented according to a reference signal identifier, i represents a closed loop process identifier (P) of the PUSCH_CMAX,f,c(i) Representing the maximum transmit power, P, of the PUSCH_{O_PUSCH,b,f,c}(j) Indicates the target received power, α, of the PUSCH_b,f,c(j) Represents a path loss compensation factor of the PUSCH,

indicating the Transmission Bandwidth, PL, of the PUSCH_b,f,c(q_d) Representing the path loss estimate, Δ, of the PUSCH_TF,b,f,c(i) Indicates the amount of power compensation, f, associated with the modulation and coding scheme of the PUSCH_b,f,c(i, l) represents closed loop power control adjustment amount of PUSCH, and μ represents numerical configuration (Numerology).

In the prior art, since the total power of the PUSCH is equally distributed among all ports configured on the network side corresponding to the corresponding transmission mode, when a terminal device (UE) transmits the PUSCH only using a part of ports (for example, when the PUSCH is transmitted only using a non-zero port), uplink power allocated to other ports is wasted, so that the uplink total power of the PUSCH is not fully utilized, and uplink coverage and uplink transmission rate of the PUSCH are affected.

Disclosure of Invention

The embodiment of the invention provides an uplink power control method and equipment, which are used for improving uplink coverage and uplink transmission rate of uplink signals.

In a first aspect, a method for uplink power control is provided, which is applied to a network device, and the method includes:

sending Downlink Control Information (DCI), wherein the DCI comprises related parameters for controlling the power of uplink signals, the related parameters are related to the number of target ports of terminal equipment, or the related parameters are related to the number of the target ports of the terminal equipment and the total number of the ports, and the target ports are ports used for transmitting the uplink signals by the terminal equipment;

wherein the uplink signal comprises at least one of a Physical Uplink Shared Channel (PUSCH) and a Sounding Reference Signal (SRS).

In a second aspect, a method for controlling uplink power is provided, which is applied to a terminal device, and the method includes:

receiving Downlink Control Information (DCI), wherein the DCI comprises related parameters for controlling uplink signal power, the related parameters are related to the number of target ports of the terminal equipment, or the related parameters are related to the number of the target ports of the terminal equipment and the total number of the ports, and the target ports are ports used for transmitting the uplink signals by the terminal equipment;

In a third aspect, a network device is provided, which includes:

a first sending module, configured to send downlink control information DCI, where the DCI includes a parameter related to uplink signal power control, where the parameter is related to the number of target ports of a terminal device, or the parameter is related to the number of target ports of the terminal device and a total number of ports, where the target port is a port used by the terminal device to transmit the uplink signal;

In a fourth aspect, a terminal device is provided, which includes:

a receiving module, configured to receive downlink control information DCI, where the DCI includes a parameter related to uplink signal power control, where the parameter is related to the number of target ports of the terminal device, or the parameter is related to the number of target ports of the terminal device and a total number of ports, where the target port is a port used by the terminal device to transmit the uplink signal;

In a fifth aspect, a network device is provided, which comprises a memory, a processor and a wireless communication program stored on the memory and executable on the processor, the wireless communication program, when executed by the processor, implementing the steps of the method according to the first aspect.

In a sixth aspect, a terminal device is provided, which comprises a memory, a processor and a wireless communication program stored on the memory and executable on the processor, the wireless communication program, when executed by the processor, implementing the steps of the method according to the second aspect.

In a seventh aspect, a computer readable medium is provided, having stored thereon a wireless communication program, which when executed by a processor, performs the steps of the method according to the first or second aspect.

In the embodiment of the present invention, the parameter related to uplink signal power control included in the DCI is related to the number of target ports actually used for transmitting the uplink signal in the terminal device. Instead of the prior art, the related parameters of the uplink signal power control are indicated only according to the total port number of the terminal equipment, regardless of the condition that the terminal equipment adopts partial ports to transmit uplink signals. Therefore, the technical scheme provided by the embodiment of the invention can more accurately and reasonably control the uplink power and increase the actual uplink total power of the uplink signal, thereby improving the uplink coverage and the uplink transmission rate of the uplink signal.

Drawings

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

Fig. 1 is a schematic flowchart of an uplink power control method according to an embodiment of the present invention.

Fig. 2 is a schematic flowchart of another uplink power control method according to an embodiment of the present invention.

Fig. 3 is a second schematic flowchart of another uplink power control method according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a network device 400 according to an embodiment of the present invention.

Fig. 5 is one of the schematic structural diagrams of a terminal device 500 according to an embodiment of the present invention.

Fig. 6 is a second schematic structural diagram of a terminal device 500 according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a network device 700 according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a terminal device 800 according to an embodiment of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS) or a Worldwide Interoperability for Microwave Access (WiMAX) communication System, a 5G System, or a New Radio (NR) System.

A Terminal device (UE), which may also be referred to as a Mobile Terminal (Mobile Terminal), a Mobile Terminal device, or the like, may communicate with at least one core Network via a Radio Access Network (RAN, for example), where the Terminal device may be a Mobile Terminal, such as a Mobile phone (or a "cellular" phone) and a computer having the Mobile Terminal, such as a portable, pocket, handheld, computer-embedded or vehicle-mounted Mobile device, and may exchange languages and/or data with the Radio Access Network.

The network device is a device deployed in a radio access network device and configured to provide an uplink power control function for a terminal device, where the network device may be a Base Station, and the Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, an evolved Node B (eNB or e-NodeB) and a 5G Base Station (gNB) in LTE, and a network-side device in a subsequent evolved communication system, where terms do not limit the protection scope of the present invention.

It should be noted that, when describing a specific embodiment, the sequence number of each process does not mean the execution sequence, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiment of the present invention.

It should be noted that, the uplink power control method and apparatus provided in the embodiment of the present invention are described below by taking a 5G system as an example, and it should be understood that the uplink power control method and apparatus provided in the embodiment of the present invention may also be applied to other communication systems, and are not limited to the 5G system.

It should be noted that, in the embodiments of the present application, the description object "and/or" connected "may be understood as at least one of" and/or "connected objects.

The uplink power control method applied to the network device is described with reference to fig. 1.

Fig. 1 shows an uplink power control method according to an embodiment of the present invention, which is applied to a network device. As shown in fig. 1, the method may include the steps of:

step 101, sending downlink control information DCI, where the DCI includes related parameters for uplink signal power control, where the related parameters are related to the number of target ports of a terminal device, or the related parameters are related to the number of target ports of the terminal device and a total port number, and the target port is a port used by the terminal device to transmit the uplink signal.

Among them, Downlink Control Information (DCI).

And a destination port is a port used by the terminal device to transmit the uplink signal, that is, a non-zero port actually used by the terminal device to transmit the uplink signal. The antenna ports of the terminal device may include a null port and a non-null port.

In the embodiments provided in this application, the uplink signal in step 101 includes, but is not limited to: at least one of a Physical Uplink Shared Channel (PUSCH) and a Sounding Reference Signal (SRS).

Optionally, in this embodiment of the application, the uplink signal described in step 101 supports both codebook-based (codebook) transmission and Non-codebook-based (Non-codebook) transmission, that is, the PUSCH and SRS support either codebook-based transmission or Non-codebook-based transmission.

The DCI for indicating the relevant parameter for uplink signal power control may have multiple formats, and as an example, in step 101, the network device may use the DCI of "Format 0_1(Format0_ 1)" to indicate the relevant parameter for uplink signal power control. More specifically, the network device may use a Scheduling Request Indication (SRI) resource Indication (resource indicator) field in the DCI of format0_1 to indicate a relevant parameter for uplink signal power control, and may indicate the relevant parameter through a code point (Codepoint) in an SRI resource Indication field in the DCI, or indicate the relevant parameter through an SRI resource Indication field value (field value) in the DCI.

The above-mentioned related parameters can be explained by referring to the formulas listed in the background of the present application.

As described in the background of the present application, for an uplink fractional bandwidth b on a carrier f of a serving cell c, the uplink power (uplink total power) of a PUSCH can be determined by the following formula:

wherein, P_PUSCH,b,f,c(i,j,q_dL) represents the uplink total power of the PUSCH, i represents the transmission time of the PUSCH, j represents the target receiving power and the path loss compensation factor value identification of the PUSCH, and q represents the uplink total power of the PUSCH_dThe path loss calculation of the PUSCH is represented according to a reference signal identifier, l represents a closed loop process identifier (P) of the PUSCH_CMAX,f,c(i) Representing the maximum transmit power, P, of the PUSCH_{O_PUSCH,b,f,c}(j) Indicates the target received power, α, of the PUSCH_b,f,c(j) Represents a path loss compensation factor of the PUSCH,

It is easy to see from the above formula because the uplink total power P of PUSCH is calculated_PUSCH,b,f,c(i,j,q_dL) requires P_{O_PUSCH,b,f,c}(j)、α_b,f,c(j)、q_dAnd l, the parameters related to the uplink signal power control that needs DCI indication in step 101 may be, for example, parameters related to uplink signal power controlTo include, but not be limited to, presetting one or more of the following parameters of the upstream signal: and the target receiving power, the path loss compensation factor, the closed loop power control process identifier and the path loss calculation are identified according to the reference signal.

Due to the increase of P in the above formula_{O_PUSCH,b,f,c}(j)、α_b,f,c(j)、q_dAnd one or more of l and other related parameters may cause the uplink total power P of the PUSCH_PUSCH,b,f,c(i,j,q_dL) increase. Therefore, compared to the related parameters indicated by the DCI according to the total port number of the terminal device in the prior art, when the network device increases one or more of the related parameters indicated in the DCI according to the number of target ports in the terminal device, or according to the number of target ports and the total port number in the terminal device, the uplink total power of the uplink signal may be increased, which may cause the uplink signal transmission power allocated on the target port to be increased, even may implement full power transmission, and may further improve uplink coverage and uplink transmission rate of the uplink signal, regardless of that the terminal device equally distributes the uplink total power to all ports or to the target ports.

For example, suppose that the terminal device includes 4 ports, 2 of which are zero ports and 2 of which are non-zero ports. According to the prior art, if the terminal device calculates the uplink total power according to the above-mentioned relevant parameters indicated by the DCI to obtain P1, and divides the uplink total power into 4 ports, the transmit power obtained by each port is P1/4, but when the uplink signal is actually transmitted, only 2 non-zero ports are used for transmitting the uplink signal, and the final actual uplink total power is equal to P1/2(2 × P1/4 — P1/2), resulting in a lower uplink coverage and uplink transmission rate.

However, if the uplink power control method provided in the embodiment of the present application is applied, the network device determines the relevant parameters indicated in the DCI according to the number of the nonzero ports, so that after the terminal device equally divides the calculated uplink total power P1 into 2 nonzero ports, the transmit power obtained by each port is P1/2, and thus when 2 nonzero ports are adopted to transmit uplink signals, the final actual uplink total power is equal to P1(2 × P1/2 is equal to P1), thereby improving the uplink coverage and the uplink transmission rate of the uplink signals.

Based on the above principle, the following describes the uplink power control method provided by the embodiment shown in fig. 1 in more detail with reference to some specific examples.

In a first example, the relevant parameters in step 101 include: at least one of a target received power and a path loss compensation factor, and the correlation parameter is correlated with the number of target ports and the total number of ports. Then, when the number of the target ports is equal to the total number of ports, the target received power indicated by the DCI is equal to a first specified value, and the path loss compensation factor indicated by the DCI is equal to a second specified value; when the number of the target ports is smaller than the total number of the ports, the target received power indicated by the DCI is larger than the first specified value, and/or the path loss compensation factor indicated by the DCI is larger than the second specified value.

That is, in the first example, compared to the prior art, the total uplink power equally divided to the target port may be increased by increasing at least one of the target received power and the path loss compensation factor indicated in the DCI, so as to increase the final total actual uplink power.

In a specific implementation manner of the first example, when the number of target ports is smaller than the total number of ports, the target received power indicated by the DCI is a product of a specified ratio and the first specified value, where the specified ratio is a ratio of the total number of ports to the number of target ports. For example, assuming that the total ports in the terminal device are equal to M and the number of target ports is equal to N, when N is less than M, the target received power indicated by the DCI may be P0 × M/N, where P0 is the first specified value.

In another specific implementation manner of the first example, when the number of target ports is smaller than the total number of ports, the target received power is the sum of a fourth specified value and the first specified value, and the fourth specified value is related to the logarithm of the specified ratio. For example, assuming that the total ports in the terminal device are equal to M and the number of target ports is equal to N, when N is less than M, the target received power indicated by the DCI may be P0+10 × log (M/N), where P0 is the first specified value.

Optionally, in the first example, the related parameter may further include a closed-loop power control process identifier of the uplink signal; when the number of the target ports is equal to the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier indicated by the DCI is equal to a third specified value; and when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier indicated by the DCI is also equal to a third specified value, and the DCI is further used for triggering the terminal equipment to accumulate the closed-loop power control adjustment amount.

That is, in the first example, with respect to the prior art, the total uplink power equally divided to the target port may be increased only by increasing at least one of the target received power and the path loss compensation factor indicated in the DCI, and the closed-loop power control process identifier may remain unchanged. For example, if the closed-loop power control process identifier l indicated by the DCI is 1 when the number of target ports is equal to the total number of ports, then the closed-loop power control process identifier l indicated by the DCI is also 1 when the number of target ports is less than the total number of ports.

Of course, in the first example, the total uplink power equally divided to the target port is increased except by increasing at least one of the target received power and the path loss compensation factor; the total uplink power equally distributed to the target port can be increased by increasing the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier.

In a second example, the related parameter in step 101 includes a closed-loop power control process identifier of the uplink signal, and the related parameter is related to the number of the target ports and the total number of the ports; when the number of the target ports is equal to the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier indicated by the DCI is equal to a third specified value; and when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier indicated by the DCI is larger than the third specified value.

That is, in the second example, compared to the prior art, the total uplink power equally divided to the target port can be increased by increasing the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier, so as to increase the final actual total uplink power.

In a specific implementation manner of the second example, when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is a product of a specified ratio and the third specified value, where the specified ratio is a ratio of the total number of the ports to the number of the target ports. For example, assuming that the total ports in the terminal device are equal to M and the number of target ports is equal to N, when N is less than M, the closed loop power control adjustment amount indicated by the DCI may be f × M/N, where f is the third specified value.

In another specific implementation manner of the second example, when the number of target ports is less than the total number of ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier indicated by the DCI is: a sum of a fourth specified value and the third specified value; wherein the fourth specified value is related to a logarithm of a specified ratio of the total number of ports to the number of destination ports. For example, assuming that the total ports in the terminal device are equal to M and the number of target ports is equal to N, when N is less than M, the closed loop power control adjustment amount may be: f +10 log (M/N), wherein f is the third specified value.

Optionally, in the second example, the related parameter may further include at least one of a target received power and a path loss compensation factor of the uplink signal.

Optionally, in the first example or the second example, the closed-loop power control process identifier indicated by the DCI corresponds to the number of the target ports or the identifier of the target ports. Therefore, the number and the flexibility of the closed-loop power control process identification can be increased, and the flexibility of the closed-loop power control adjustment amount corresponding to the closed-loop power control process identification can be further realized. For example, currently, in the prior art, the identifier of the closed-loop power control process only includes 0 and 1, but after applying the embodiment provided in this application, the identifier of the closed-loop power control process may include 0,1,2,3 and above, and so on.

In a third example, in step 101, the relevant parameters may include: and when the terminal equipment equally divides the total uplink power among the target ports, the relevant parameters indicated by the DCI are relevant to the number of the target ports, so that the full power transmission of the uplink signals is realized, and the coverage performance of edge users is enhanced.

Based on the above description, it can be known that, in the uplink power control method provided in the embodiment shown in fig. 1, because the relevant parameter for uplink signal power control included in the DCI is related to the number of target ports actually used for transmitting the uplink signal in the terminal device. Instead of the prior art, the related parameters of the uplink signal power control are indicated only according to the total port number of the terminal equipment, regardless of the condition that the terminal equipment adopts partial ports to transmit uplink signals. Therefore, the uplink power can be more accurately and reasonably controlled, and the actual uplink total power of the uplink signal is increased, so that the uplink coverage and the uplink transmission rate of the uplink signal are improved.

Optionally, in another embodiment, if the relevant parameter includes the following of the preset uplink signal: the target receiving power, the path loss compensation factor, the closed loop power control process identification and the path loss calculation are identified according to the reference signal; if the target port is changed, the path loss calculation indicated by the DCI after the change is different from the path loss calculation indicated by the DCI before the change according to a reference signal identifier; the target receiving power, the path loss compensation factor and the closed-loop power control process identifier indicated by the DCI after the transformation are respectively in correspondence with the target receiving power, the path loss compensation factor and the closed-loop power control process identifier indicated by the DCI before the transformation.

The embodiment is intended to illustrate that, when the UE does not change the number of target ports, but only changes the target ports, the UE expects to change before and after the change, and among related parameters indicated by DCI, only the path loss calculation changes according to the reference signal identifier, and the target received power, the path loss compensation factor, and the closed-loop power control process identifier do not change, so that it can be ensured that the uplink total power does not fluctuate greatly before and after the change, and further, additional resource overhead caused by too large change of the uplink total power is avoided, because in a 5G system, the uplink power change needs an additional protection symbol to avoid signal distortion.

Optionally, in a further embodiment, the relevant parameter may include: and the target receiving power, the path loss compensation factor and the path loss calculation are identified according to the reference signal and the closed-loop power control process. On this basis, if the target related parameter indicated by the DCI transmitted at the first time is different from the target related parameter indicated by the DCI transmitted at the second time, the DCI transmitted at the first time is further used to trigger the terminal device to reset the closed-loop power control adjustment amount.

Wherein the second time is a latest historical time for transmitting the DCI from the first time, and the target related parameter includes: the target received power, the path loss compensation factor and the path loss calculation are based on at least one of the reference signal identifications.

The resetting of the closed-loop power control adjustment amount may be understood as clearing the closed-loop power control adjustment amount in the uplink total power calculation formula.

This embodiment is intended to illustrate that, when the target received power, the path loss compensation factor, and the path loss calculation indicated by the DCI currently sent by the network device are respectively corresponding to and different from the target received power, the path loss compensation factor, and the path loss calculation indicated by the DCI sent last time according to the reference signal, the currently sent DCI needs to trigger the UE to clear the closed-loop power control adjustment amount, so as to avoid a drastic change in uplink total power caused by the fact that the closed-loop power control process identifier remains unchanged when the target received power, the path loss compensation factor, and the path loss calculation change greatly according to the reference signal. This is because, if the DCI does not trigger the UE to clear the closed-loop power control adjustment amount, the UE accumulates the closed-loop power control adjustment amounts corresponding to the closed-loop power control process identifiers indicated in the DCI according to the time sequence, and if the number of accumulation times is large, the uplink total power may be changed drastically.

Optionally, in another embodiment, before the step 101, the uplink power control method shown in fig. 1 may further include: and sending a Radio Resource Control (RRC) message, wherein the RRC message is used for configuring the corresponding relation between the value of the relevant parameter and the value index to the terminal equipment.

On this basis, the DCI in step 101 may be used to indicate a value index of the relevant parameter.

It is understood that when the DCI includes the value index of the relevant parameter instead of the value used for indicating the relevant parameter, the resource of the DCI signaling may be saved. In the foregoing embodiment, the closed-loop power control process identifier indicated in the DCI may be regarded as a value index of the closed-loop power control adjustment amount, and the path loss calculation indicated in the DCI may be regarded as a value index of the path loss calculation according to the reference signal identifier.

The uplink power control method applied to the network device is explained above, and the uplink power control method applied to the terminal device according to the embodiment of the present invention is explained below with reference to fig. 2 and fig. 3.

As shown in fig. 2, the uplink power control method according to an embodiment of the present invention is applied to a terminal device, and may include the following steps:

step 201, receiving downlink control information DCI, where the DCI includes related parameters for uplink signal power control, where the related parameters are related to the number of target ports of the terminal device, or the related parameters are related to the number of target ports of the terminal device and a total number of ports, and the target port is a port used by the terminal device to transmit the uplink signal.

The target port is a port used by the terminal equipment for transmitting the uplink signal; the uplink signal includes: at least one of a physical uplink shared channel, PUSCH, and a sounding reference signal, SRS.

Optionally, in this embodiment of the application, the uplink signal described in step 201 supports both codebook-based transmission and non-codebook-based transmission, that is, the PUSCH and SRS support both codebook-based transmission and non-codebook-based transmission.

The relevant parameters may include, but are not limited to, one or more of the following parameters of the preset uplink signal: and the target receiving power, the path loss compensation factor, the closed loop power control process identifier and the path loss calculation are identified according to the reference signal.

The uplink power control method provided by the embodiment shown in fig. 2 is described in more detail below with reference to some specific examples.

In a first example, the relevant parameters in step 201 include: at least one of a target received power and a path loss compensation factor, and the correlation parameter is correlated with the number of target ports and the total number of ports. Then, when the number of the target ports is equal to the total number of ports, the target received power is equal to a first specified value, and the path loss compensation factor is equal to a second specified value; when the number of the target ports is smaller than the total number of the ports, the target received power is larger than the first specified value, and/or the path loss compensation factor is larger than the second specified value.

In a specific implementation manner of the first example, when the number of the target ports is smaller than the total number of the ports, the target received power is a product of a specified ratio and the first specified value, and the specified ratio is a ratio of the total number of the ports to the number of the target ports.

In another specific implementation manner of the first example, when the number of the target ports is smaller than the total number of the ports, the target received power is a sum of a fourth specified value and the first specified value, and the fourth specified value is related to a logarithm of the specified ratio.

Optionally, in the first example, the related parameter may further include a closed-loop power control process identifier of the uplink signal; when the number of the target ports is equal to the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is equal to a third specified value; when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is equal to the third specified value, and after the receiving the downlink control information DCI, the method further includes: and accumulating the closed loop power control adjustment quantity.

That is, in the first example, with respect to the prior art, the total uplink power equally divided to the target port may be increased only by increasing at least one of the target received power and the path loss compensation factor indicated in the DCI, and the closed-loop power control process identifier may remain unchanged.

In a second example, the related parameter in step 201 includes a closed-loop power control process identifier of the uplink signal, and the related parameter is related to the number of the target ports and the total number of the ports; when the number of the target ports is equal to the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is equal to a third specified value; and when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is larger than the third specified value.

In a specific implementation manner of the second example, when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is a product of a specified ratio and the third specified value, where the specified ratio is a ratio of the total number of the ports to the number of the target ports.

In another specific implementation manner of the second example, when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is a sum of a fourth specified value and the third specified value; wherein the fourth specified value is related to a logarithm of a specified ratio of the total number of ports to the number of destination ports.

Optionally, in the first example or the second example, the closed-loop power control process identifier indicated by the DCI corresponds to the number of the target ports or the identifier of the target ports. Therefore, the number and the flexibility of the closed-loop power control process identification can be increased, and the flexibility of the closed-loop power control adjustment amount corresponding to the closed-loop power control process identification can be further realized.

In a third example, in step 201, the related parameters may include: and when the terminal equipment equally divides the total uplink power among the target ports, the relevant parameters indicated by the DCI are relevant to the number of the target ports so as to ensure the full power transmission of the uplink signals and enhance the coverage performance of edge users.

Based on the above description, it can be known that, in the uplink power control method provided in the embodiment shown in fig. 2, because the relevant parameter for uplink signal power control included in the DCI is related to the number of target ports actually used for transmitting the uplink signal in the terminal device. Instead of the prior art, the related parameters of the uplink signal power control are indicated only according to the total port number of the terminal equipment, regardless of the condition that the terminal equipment adopts partial ports to transmit uplink signals. Therefore, the uplink power can be more accurately and reasonably controlled, and the actual uplink total power of the uplink signal is increased, so that the uplink coverage and the uplink transmission rate of the uplink signal are improved.

The embodiment is intended to illustrate that, when the UE does not change the number of target ports, but only changes the target ports, the UE expects to change before and after the change, and among related parameters indicated by DCI, only the path loss calculation changes according to the reference signal identifier, and the target received power, the path loss compensation factor, and the closed-loop power control process identifier do not change, so that it is ensured that the uplink total power does not fluctuate greatly before and after the change, and further, additional resource overhead caused by too large change of the uplink total power is avoided.

Optionally, in a further embodiment, the related parameters include: calculating target receiving power, a path loss compensation factor and a path loss according to a reference signal identifier and a closed-loop power control process identifier; if the target related parameter indicated by the DCI received at the third time is not the same as the target related parameter indicated by the DCI received at the fourth time, after the DCI is received at the third time, the method further includes: the closed loop power control adjustment is reset.

Wherein the fourth time is a latest historical time for receiving the DCI from the third time, and the target related parameter includes: the target received power, the path loss compensation factor and the path loss calculation are based on at least one of the reference signal identifications.

The embodiment is intended to illustrate that, when the target received power, the path loss compensation factor, and the path loss calculation indicated by the DCI currently received by the UE are respectively corresponding to different reference signals according to the reference signals and different from the target received power, the path loss compensation factor, and the path loss calculation indicated by the DCI received last time according to the reference signals, the UE needs to clear the closed-loop power control adjustment amount after the DCI is currently received, so as to avoid a drastic change in uplink total power caused by the fact that the target received power, the path loss compensation factor, and the path loss calculation are still unchanged according to the reference signals when the target received power, the path loss compensation factor, and the path loss calculation are changed greatly.

Optionally, in another embodiment, as shown in fig. 3, an uplink power control method applied to a terminal device may include, in addition to the step 201, the following steps:

step 202, determining the uplink total power of the uplink signal based on the relevant parameters indicated by the DCI.

The total uplink power of the PUSCH and other uplink signals (e.g., SRS) may be determined with specific reference to the formula listed above for calculating the total uplink power of the PUSCH.

Step 203, equally dividing the total uplink power among the target ports, or equally dividing the total uplink power among all the ports of the terminal device.

It can be understood that, in the embodiment of the present application, when one or more of the related parameters indicated in the DCI is increased according to the number of target ports in the terminal device, or according to the number of target ports in the terminal device and the total number of ports, compared to the related parameters indicated by the DCI in the prior art according to the total number of ports of the terminal device, the total uplink power of the uplink signal may be increased, which may cause the terminal device to increase the uplink signal transmission power allocated to the target ports regardless of whether the total uplink power is equally distributed to all the ports or the target ports, and may even implement full power transmission, thereby increasing the uplink coverage and the uplink transmission rate of the uplink signal.

The uplink power control method applied to the terminal device is explained above, and the network device and the terminal device according to the embodiments of the present invention will be described in detail below with reference to fig. 4 to 6.

Fig. 4 shows a schematic structural diagram of a network device according to an embodiment of the present invention, and as shown in fig. 4, the network device 400 includes: a first transmitting module 401.

The first sending module 401 sends downlink control information DCI, where the DCI includes related parameters for controlling uplink signal power, where the related parameters are related to the number of target ports of a terminal device, or the related parameters are related to the number of target ports of the terminal device and a total number of ports, where the target ports are ports used by the terminal device for transmitting the uplink signals.

The target port is a port used by the terminal equipment for transmitting the uplink signal; the uplink signal includes: at least one of a physical uplink shared channel, PUSCH, and a sounding reference signal, SRS. The uplink signals PUSCH and SRS may support either codebook-based transmission or non-codebook-based transmission.

The DCI for indicating the relevant parameter for uplink signal power control may have multiple formats, and as an example, in the first transmitting module 401, the network device may use the DCI of "format 0_ 1" to indicate the relevant parameter for uplink signal power control. More specifically, the network device may use the SRI resource indication field in the DCI with format0_1 to indicate the relevant parameter for uplink signal power control, and may indicate the relevant parameter through a code point in the SRI resource indication field in the DCI, or indicate the relevant parameter through an SRI resource indication field value in the DCI.

The relevant parameters for uplink signal power control indicated by the DCI may include, but are not limited to, one or more of the following parameters of the preset uplink signal: and the target receiving power, the path loss compensation factor, the closed loop power control process identifier and the path loss calculation are identified according to the reference signal.

In a first example, in the first sending module 401, the relevant parameters indicated by the DCI include: at least one of a target received power and a path loss compensation factor, and the correlation parameter is correlated with the number of target ports and the total number of ports. Then, when the number of the target ports is equal to the total number of ports, the target received power is equal to a first specified value, and the path loss compensation factor is equal to a second specified value; when the number of the target ports is smaller than the total number of the ports, the target received power is larger than the first specified value, and/or the path loss compensation factor is larger than the second specified value.

Optionally, in the first example, the related parameter may further include a closed-loop power control process identifier of the uplink signal; when the number of the target ports is equal to the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is equal to a third specified value; when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is equal to the third specified value, and the DCI may be further configured to trigger the terminal device to accumulate the closed-loop power control adjustment amount.

In a second example, in the first sending module 401, the relevant parameter indicated by the DCI includes a closed-loop power control process identifier of the uplink signal, and the relevant parameter is related to the number of the target ports and the total number of the ports; when the number of the target ports is equal to the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is equal to a third specified value; and when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is larger than the third specified value.

In another specific implementation manner of the second example, when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is a sum of a fourth specified value and the third specified value; wherein the fourth specified value is related to a logarithm of the specified ratio.

In a third example, at the first sending module 401, the relevant parameters of DCI knowledge may include: and when the terminal equipment equally divides the total uplink power among the target ports, the relevant parameters indicated by the DCI are relevant to the number of the target ports so as to ensure the full power transmission of the uplink signals and enhance the coverage performance of edge users.

Based on the above description, it can be seen that the network device 400 provided in the embodiment shown in fig. 4 is related to the number of target ports actually used for transmitting the uplink signal in the terminal device, due to the parameter related to the uplink signal power control contained in the DCI. Instead of the prior art, the related parameters of the uplink signal power control are indicated only according to the total port number of the terminal equipment, regardless of the condition that the terminal equipment adopts partial ports to transmit uplink signals. Therefore, the uplink power can be more accurately and reasonably controlled, and the actual uplink total power of the uplink signal is increased, so that the uplink coverage and the uplink transmission rate of the uplink signal are improved.

This embodiment is intended to illustrate that, when the target received power, the path loss compensation factor, and the path loss calculation indicated by the DCI currently sent by the network device are respectively corresponding to and different from the target received power, the path loss compensation factor, and the path loss calculation indicated by the DCI sent last time according to the reference signal, the currently sent DCI needs to trigger the UE to clear the closed-loop power control adjustment amount, so as to avoid a drastic change in uplink total power caused by the fact that the closed-loop power control process identifier remains unchanged when the target received power, the path loss compensation factor, and the path loss calculation change greatly according to the reference signal.

Optionally, in another embodiment, the network device 400 shown in fig. 4 may further include: and the second sending module is used for sending a Radio Resource Control (RRC) message, and the RRC message is used for configuring the corresponding relation between the value of the relevant parameter and the value index to the terminal equipment.

On this basis, the DCI transmitted by the first transmitting module 401 may be used to indicate a value index of the relevant parameter.

It is understood that when the DCI includes the value index of the relevant parameter instead of the value used for indicating the relevant parameter, the resource of the DCI signaling may be saved.

The network device 400 shown in fig. 4 may be used to implement the embodiments of the uplink power control method shown in fig. 1, and please refer to the above method embodiments for relevant matters.

Fig. 5 shows a schematic structural diagram of a terminal device according to an embodiment of the present invention, and as shown in fig. 5, the terminal device 500 includes: a receiving module 501.

A receiving module 501, configured to receive downlink control information DCI, where the DCI includes related parameters for controlling uplink signal power, where the related parameters are related to the number of target ports of the terminal device, or the related parameters are related to the number of target ports of the terminal device and a total number of ports, where the target port is a port where the terminal device is configured to transmit the uplink signal.

In a first example, in the receiving module 501, the relevant parameter indicated by the DCI includes: at least one of a target received power and a path loss compensation factor, and the correlation parameter is correlated with the number of target ports and the total number of ports. When the number of the target ports is equal to the total number of the ports, the target receiving power is equal to a first specified value, and the path loss compensation factor is equal to a second specified value; when the number of the target ports is smaller than the total number of the ports, the target received power is larger than the first specified value, and/or the path loss compensation factor is larger than the second specified value.

In a specific implementation manner of the first example, when the number of destination ports is smaller than the total number of ports, the destination received power is a product of a specified ratio and the first specified value, and the specified ratio is a ratio of the total number of ports to the number of destination ports.

In another specific implementation manner of the first example, the target received power is a product of a specified ratio and the first specified value, and the specified ratio is a ratio of the total port number to the number of the target ports.

Optionally, in the first example, the related parameter may further include a closed-loop power control process identifier of the uplink signal; when the number of the target ports is equal to the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is equal to a third specified value; when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is equal to the third specified value, and after receiving the downlink control information DCI, the terminal device 500 may further include: and the accumulation module is used for accumulating the closed-loop power control adjustment quantity.

In a second example, in the receiving module 501, the DCI indication related parameter includes a closed-loop power control process identifier of the uplink signal, and the related parameter is related to the number of the target ports and the total number of the ports; when the number of the target ports is equal to the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is equal to a third specified value; and when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is larger than the third specified value.

Based on the above description, it can be seen that the terminal device 500 provided in the embodiment shown in fig. 5 is related to the number of target ports actually used for transmitting the uplink signal in the terminal device, due to the related parameters for uplink signal power control included in the DCI. Instead of the prior art, the related parameters of the uplink signal power control are indicated only according to the total port number of the terminal equipment, regardless of the condition that the terminal equipment adopts partial ports to transmit uplink signals. Therefore, the uplink power can be more accurately and reasonably controlled, and the actual uplink total power of the uplink signal is increased, so that the uplink coverage and the uplink transmission rate of the uplink signal are improved.

Optionally, in a further embodiment, the related parameters include: calculating target receiving power, a path loss compensation factor and a path loss according to a reference signal identifier and a closed-loop power control process identifier; if the target related parameter indicated by the DCI received at the third time is different from the target related parameter indicated by the DCI received at the fourth time, the terminal apparatus 500 may further include: and the resetting module is used for resetting the closed-loop power control adjustment quantity after the DCI is received at the third moment.

Optionally, in another embodiment, as shown in fig. 6, the method applied to the terminal device 500 may further include, in addition to the first receiving module 501: a first determination module 502 and a second determination module 503.

A first determining module 502, configured to determine a total uplink power of the uplink signal based on the relevant parameter indicated by the DCI.

A second determining module 503, configured to divide the total uplink power equally among the target ports, or divide the total uplink power equally among all the ports of the terminal device.

The terminal device 500 shown in fig. 5 to fig. 6 can be used to implement the embodiments of the uplink power control method shown in fig. 2 to fig. 3, and please refer to the above method embodiments for relevant points.

Referring to fig. 7, fig. 7 is a structural diagram of a network device applied in the embodiment of the present invention, which can implement the details of the uplink power control method and achieve the same effect. As shown in fig. 7, the network device 700 includes: a processor 701, a transceiver 702, a memory 703, a user interface 704 and a bus interface, wherein:

in this embodiment of the present invention, the network device 700 further includes: a computer program stored in the memory 703 and capable of running on the processor 701, where the computer program is executed by the processor 701 to implement the processes of the uplink power control method, and can achieve the same technical effects, and is not described herein again to avoid repetition.

In fig. 7, the bus architecture may include any number of interconnected buses and bridges, with at least one processor, represented by processor 701, and various circuits, represented by memory 703, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 702 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 704 may also be an interface capable of interfacing with a desired device for different end devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 701 is responsible for managing the bus architecture and general processing, and the memory 703 may store data used by the processor 701 in performing operations.

Fig. 8 is a schematic structural diagram of a terminal device according to another embodiment of the present invention. The terminal apparatus 800 shown in fig. 8 includes: at least one processor 801, memory 802, at least one network interface 804, and a user interface 803. The various components in the terminal device 800 are coupled together by a bus system 805. It is understood that the bus system 805 is used to enable communications among the components connected. The bus system 805 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 805 in fig. 8.

The user interface 803 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.

It will be appreciated that the memory 802 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous SDRAM (ESDRAM), Sync Link DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 802 of the subject systems and methods described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 802 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 8021 and application programs 8022.

The operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application 8022 includes various applications, such as a media player (MediaPlayer), a Browser (Browser), and the like, for implementing various application services. A program implementing a method according to an embodiment of the present invention may be included in application program 8022.

In this embodiment of the present invention, the terminal device 800 further includes: a computer program stored in the memory 802 and capable of running on the processor 801, wherein the computer program, when executed by the processor 801, implements the processes of the uplink power control method described above and can achieve the same technical effects, and further description is omitted here to avoid repetition.

The methods disclosed in the embodiments of the present invention described above may be implemented in the processor 801 or implemented by the processor 801. The processor 801 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 801. The Processor 801 may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802, and combines the hardware to complete the steps of the method. In particular, the computer readable storage medium has stored thereon a computer program, which when executed by the processor 801, implements the steps of the above-described uplink power control method embodiments.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing unit may be implemented in at least one Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a general purpose processor, a controller, a microcontroller, a microprocessor, other electronic units for performing the functions of the invention, or a combination thereof.

For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

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 uplink 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.

An embodiment of the present invention further provides a computer program product including instructions, and when a computer runs the instructions of the computer program product, the computer executes the uplink power control method or the uplink power control method. In particular, the computer program product may be run on the network device described above.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

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

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An uplink power control method, applied to a network device, the method comprising:

wherein the uplink signal comprises: at least one of a Physical Uplink Shared Channel (PUSCH) and a Sounding Reference Signal (SRS); in a case where the correlation parameter includes at least one of a target received power and a path loss compensation factor of the uplink signal, and the correlation parameter is correlated with the number of the target ports and the total number of ports:

when the number of the target ports is equal to the total port number, the target received power is equal to a first specified value, and the path loss compensation factor is equal to a second specified value;

when the number of the target ports is smaller than the total number of the ports, the target received power is larger than the first specified value, and/or the path loss compensation factor is larger than the second specified value.

2. The method of claim 1,

when the number of the target ports is smaller than the total number of the ports, the target received power is a product of a specified ratio and the first specified value, and the specified ratio is a ratio of the total number of the ports to the number of the target ports; alternatively, the first and second electrodes may be,

when the number of the target ports is smaller than the total number of the ports, the target received power is the sum of a fourth specified value and the first specified value, and the fourth specified value is related to the logarithm of the specified ratio.

3. The method of claim 1, wherein the related parameters further include a closed-loop power control procedure identifier of the uplink signal; wherein the content of the first and second substances,

when the number of the target ports is equal to the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is equal to a third specified value;

and when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is equal to the third specified value, and the DCI is further used for triggering the terminal device to accumulate the closed-loop power control adjustment amount.

4. The method according to claim 1, wherein in case that the related parameter includes a closed loop power control process identifier of the uplink signal, and the related parameter is related to the number of the target ports and the total number of ports:

and when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is larger than the third specified value.

5. The method of claim 4,

when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is a product of a specified ratio and the third specified value, where the specified ratio is a ratio of the total number of the ports to the number of the target ports; alternatively, the first and second electrodes may be,

when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is the sum of a fourth specified value and the third specified value; wherein the fourth specified value is related to a logarithm of the specified ratio.

6. The method according to claim 3 or 4,

the closed-loop power control process identifier indicated by the DCI corresponds to the number of the target ports or the identifier of the target ports.

7. The method of claim 4, wherein the related parameters further include, for the uplink signal: at least one of a target received power and a path loss compensation factor.

8. The method of claim 1, wherein the related parameters include a target received power of the uplink signal, a path loss compensation factor, a closed-loop power control procedure identifier, and a path loss calculation according to a reference signal identifier; wherein the content of the first and second substances,

if the target port is changed under the condition that the number of the target ports is a fixed number and the fixed number is smaller than the total number of the ports, wherein the path loss calculation indicated by the DCI after the change is different from the path loss calculation indicated by the DCI before the change according to a reference signal identifier; the target receiving power, the path loss compensation factor and the closed-loop power control process identifier indicated by the DCI after the transformation are respectively in correspondence with the target receiving power, the path loss compensation factor and the closed-loop power control process identifier indicated by the DCI before the transformation.

9. The method of claim 1, wherein the related parameters include a target received power of the uplink signal, a path loss compensation factor, a path loss calculation according to a reference signal identifier and a closed loop power control process identifier;

if the target related parameters indicated by the DCI sent at the first moment are different from the target related parameters indicated by the DCI sent at the second moment, wherein the DCI sent at the first moment is also used for triggering the terminal equipment to reset the closed-loop power control adjustment quantity;

the second time is a historical time for sending the DCI closest to the first time, and the target related parameter includes at least one of a target received power of the uplink signal, a path loss compensation factor, and a path loss calculation reference signal identifier.

10. An uplink power control method is applied to a terminal device, and the method comprises the following steps:

wherein the uplink signal comprises: at least one of a Physical Uplink Shared Channel (PUSCH) and a Sounding Reference Signal (SRS); in the case where the correlation parameter includes at least one of a target received power and a path loss compensation factor of the uplink signal, and the correlation parameter is determined by the number of target ports and the total number of ports:

11. The method of claim 10,

12. The method of claim 10, wherein the related parameters further include a closed-loop power control procedure identifier of the uplink signal; when the number of the target ports is equal to the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is equal to a third specified value; when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is equal to the third specified value, and after the receiving the downlink control information DCI, the method further includes:

and accumulating the closed loop power control adjustment quantity.

13. The method of claim 10, wherein if the related parameter includes an identifier of a closed-loop power control process of the uplink signal, and the related parameter is related to the number of target ports and the total number of ports:

14. The method of claim 13,

when the number of the target ports is smaller than the total number of the ports, the closed-loop power control adjustment amount corresponding to the closed-loop power control process identifier is the sum of a fourth specified value and the third specified value; wherein the fourth specified value is related to a logarithm of a specified ratio of the total number of ports to the number of destination ports.

15. The method according to claim 12 or 13,

16. The method of claim 13, wherein the correlation parameter further comprises at least one of a target received power and a path loss compensation factor of the uplink signal.

17. The method of claim 10, wherein the related parameters include a target received power of the uplink signal, a path loss compensation factor, a closed-loop power control procedure identifier, and a path loss calculation according to a reference signal identifier; wherein the content of the first and second substances,

18. The method of claim 10, wherein the related parameters include a target received power of the uplink signal, a path loss compensation factor, a path loss calculation according to a reference signal identifier and a closed loop power control process identifier; if the target related parameter indicated by the DCI received at the third time is different from the target related parameter indicated by the DCI received at the fourth time, wherein after the DCI is received at the third time, the method further comprises:

resetting the closed loop power control adjustment;

and the fourth time is a historical time for receiving the DCI nearest to the third time, and the target related parameter includes at least one of a target received power of the uplink signal, a path loss compensation factor and a path loss calculation basis reference signal identifier.

19. The method of claim 10, further comprising:

determining the uplink total power of the uplink signal based on the relevant parameters indicated by the DCI;

and equally dividing the total uplink power among the target ports, or equally dividing the total uplink power among all the ports of the terminal equipment.

20. A network device, characterized in that the network device comprises:

the uplink signal comprises at least one of a Physical Uplink Shared Channel (PUSCH) and a Sounding Reference Signal (SRS); in a case where the correlation parameter includes at least one of a target received power and a path loss compensation factor of the uplink signal, and the correlation parameter is correlated with the number of the target ports and the total number of ports:

21. A terminal device, characterized in that the terminal device comprises:

the uplink signal comprises at least one of a Physical Uplink Shared Channel (PUSCH) and a Sounding Reference Signal (SRS); in the case where the correlation parameter includes at least one of a target received power and a path loss compensation factor of the uplink signal, and the correlation parameter is determined by the number of target ports and the total number of ports:

22. A network device comprising a memory, a processor, and a wireless communication program stored on the memory and executed on the processor, the wireless communication program when executed by the processor implementing the steps of the method of any one of claims 1-9.

23. A terminal device, characterized in that it comprises a memory, a processor and a wireless communication program stored on said memory and running on said processor, said wireless communication program, when executed by said processor, implementing the steps of the method according to any one of claims 10-19.

24. A computer readable medium having stored thereon a wireless communication program which, when executed by a processor, carries out the steps of the method according to any one of claims 1-19.