Power control method, terminal, and network side device

Abstract

The present application relates to the technical field of communications, and discloses a power control method, a terminal, and a network side device. The power control method in embodiments of the present application comprises: a terminal receives first signaling form a network side device; and the terminal performs power control of a target uplink transmission on the basis of the first signaling; wherein the first signaling is used for indicating at least one of related parameters of a closed-loop power adjustment state supported by a sounding reference signal (SRS) and related parameters of a path loss (PL) offset.

Description

Power control method, terminal and network side equipment

[0001] Cross-references

[0002] This application claims priority to a Chinese patent application filed with the Patent Office of China on February 7, 2024, with application number 2024101752023 and invention name “Power Control Method, Terminal and Network Side Equipment”. The entire contents of the application are incorporated by reference into this application. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a power control method, terminal, and network-side equipment. Background Art

[0004] In the related technology, a communication scenario with uplink and downlink decoupling is provided, which allows network nodes such as transmission reception points (TRPs) to shut down the downlink transmission link. For example, some TRPs only have uplink reception and no downlink transmission, thereby achieving network energy saving and other effects.

[0005] However, for communication scenarios with uplink and downlink decoupling, how to determine the terminal-side transmit power is still a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0006] The embodiments of the present application provide a power control method, a terminal, and a network-side device, which can determine the transmission power in an uplink and downlink decoupling scenario and ensure the performance of uplink transmission.

[0007] In a first aspect, a power control method is provided, including: a terminal receiving a first signaling from a network-side device; the terminal performing power control of a target uplink transmission according to the first signaling; wherein the first signaling is used to indicate at least one of relevant parameters of a closed-loop power adjustment state supported by a sounding reference signal (SRS) and relevant parameters of a path loss offset (PL offset).

[0008] In a second aspect, a power control method is provided, including: a network side device sends a first signaling to a terminal; wherein the first signaling is used to indicate at least one of the closed-loop power adjustment state related parameters and the path loss offset PL offset related parameters supported by the sounding reference signal SRS.

[0009] In a third aspect, a power control device is provided, including: a transmission module for receiving a first signaling from a network side device; a processing module for performing power control of a target uplink transmission according to the first signaling; wherein the first signaling is used to indicate at least one of the relevant parameters of the closed-loop power adjustment state supported by the sounding reference signal SRS and the path loss offset PL offset related parameters.

[0010] In a fourth aspect, a power control device is provided, including: a transmission module for sending a first signaling to a terminal; wherein the first signaling is used to indicate at least one of the relevant parameters of the closed-loop power adjustment state supported by the sounding reference signal SRS and the path loss offset PL offset related parameters.

[0011] In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0012] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect.

[0013] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0014] In an eighth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor is used to run programs or instructions, or implement the steps of the method described in the second aspect.

[0015] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0016] In the tenth aspect, a wireless communication system is provided, comprising: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect, and the network side device can be used to execute the steps of the method described in the second aspect.

[0017] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0018] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0019] In an embodiment of the present application, a terminal receives first signaling from a network-side device and performs power control of a target uplink transmission based on the first signaling, wherein the first signaling is used to indicate at least one of parameters related to a closed-loop power adjustment state supported by an SRS and parameters related to a PL offset. Thus, for uplink and downlink decoupling scenarios, on the one hand, indicating parameters related to a closed-loop power adjustment state supported by an SRS through the first signaling enables independent closed-loop power control of different SRSs, thereby ensuring uplink transmission performance. On the other hand, indicating parameters related to the PL offset through the first signaling enables the PL offset parameters to be independent of the measurement of a path loss reference signal received downlink, effectively resolving the uplink transmission path loss calculation problem for network nodes that only perform uplink transmission, thereby ensuring uplink transmission performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1a is a schematic diagram of a wireless communication system according to an exemplary embodiment of the present application.

[0021] FIG1b is a second schematic structural diagram of a wireless communication system provided by an exemplary embodiment of the present application.

[0022] FIG2 is a flowchart of a power control method according to an exemplary embodiment of the present application.

[0023] FIG3 a is a second flowchart of a power control method provided by an exemplary embodiment of the present application.

[0024] FIG3 b is a third structural diagram of a wireless communication system provided by an exemplary embodiment of the present application.

[0025] FIG4 is a third flowchart of a power control method provided by an exemplary embodiment of the present application.

[0026] FIG5 is a fourth flowchart of a power control method provided by an exemplary embodiment of the present application.

[0027] FIG6 is a schematic diagram of a structure of a power control device according to an exemplary embodiment of the present application.

[0028] FIG7 is a second structural diagram of a power control device provided by an exemplary embodiment of the present application.

[0029] FIG8 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.

[0030] FIG9 is a schematic structural diagram of a terminal provided by an exemplary embodiment of the present application.

[0031] FIG10 is a schematic structural diagram of a network-side device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0033] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0034] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0035] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0036] FIG1a shows a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle user equipment (VUE), a ship-borne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AS) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0037] Based on the wireless communication system described above, the related art provides a communication system that deploys dense TRPs on the network side to improve uplink coverage and throughput. This can be achieved by decoupling uplink and downlink data, saving TRP deployment costs. For example, as shown in Figure 1b, some TRPs can only receive data without transmitting. Furthermore, the aforementioned decoupled uplink and downlink TRP deployment method can also simplify TRP site selection.

[0038] In addition, from the perspective of network energy saving, allowing TRP to shut down the downlink transmission link will also bring certain benefits. For example, in scenarios with intensive uplink services, uplink transmission no longer relies on the measurement and assistance of downlink reference signals, which can also save reference signal overhead to a certain extent.

[0039] In addition, the following introduces the relevant contents involved in the embodiments of this application.

[0040] 1. About the power control (PC) mechanism

[0041] (1) The significance of power control includes: maintaining power, improving performance, and reducing interference.

[0042] Maintain power: adjust the power according to the distance between the UE and the base station to ensure that the power of the signal reaching the base station is close.

[0043] Improve performance: Dynamically adjust power according to channel changes to achieve accurate and fast power regulation.

[0044] Reduce interference: Reduce adjacent channel power leakage, reduce interference between users and cells, and extend battery life.

[0045] (2) Power control is divided into downlink channel power control and uplink channel power control.

[0046] Downlink channel power control primarily relies on network-side configuration and implementation. For example, uplink channel power control includes the following: Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), Sounding Reference Signal (SRS), and Physical Random Access Channel (PRACH).

[0047] In addition, power control also includes power headroom reporting (PHR) and power scaling (sharing). PHR mainly assists base station scheduling, while power scaling is mainly used to share power and ensure transmission of higher priority cells / channels.

[0048] (3) PC parameters

[0049] P CMAX,f ,c(i): the maximum output power configured by the terminal, the transmission power will not exceed the maximum output power of the configuration;

[0050] P0: Open-loop receive power target. A larger value generally indicates higher UL transmit power and a higher received signal-to-noise and interference ratio (SINR).

[0051] Path loss (PL): Path loss is estimated using the path loss reference signal (PLRS), which includes the synchronization signal block (SSB) and the channel state information reference signal (CSI-RS). The UE needs to maintain multiple path loss estimates and use them based on the index configured or indicated by the network.

[0052] Alpha: partial path loss compensation factor, ranging from [0,1].

[0053] (a) PUSCH and SRS: When alpha is 0, path loss is completely ignored. When alpha is 1, path loss is fully compensated. In this case, the UL power of UEs in the cell center is too low (i.e., the overall throughput is too low), and the UL power of UEs at the cell edge is too high (i.e., the inter-cell interference is too large).

[0054] (b) PUCCH and PRACH: Throughput is not required, but reliability is required, so alpha is set to 1.

[0055] f(l): Power control adjustment state value, divided into accumulation mode and absolute assignment mode.

[0056] CLI: Closed-loop power control index (closedLoopIndex), the value is l=0 or l=1.

[0057] (4) R15 power control parameters

[0058] PUCCH PC parameters

[0059] PLRS: Path Loss Reference Signal. Configured in the Radio Resource Control (RRC) parameter PUCCH-PathlossReferenceRS.

[0060] P0: There are 8 pairs, namely their index q u =0~7,q u The value is configured by the RRC parameter PUCCH-SpatialRelationInfo.

[0061] Alpha: PUCCH has no alpha or alpha=1.

[0062] CLI: Configured in the RRC parameter PUCCH-SpatialRelationInfo, with a value of 0 or 1.

[0063] SRS PC parameters

[0064] PLRS: Indicated by the RRC parameter PathlossReferenceRS.

[0065] P0 and alpha: The index of the combination of P0 and alpha is q s , P0 and α are parameters configured in SRS-ResourceSet, and are bandwidth part (Bandwidth Part, BWP) level configuration parameters.

[0066] CLI: Closed-loop power control index. If SRS power control is associated with PUSCH power control (indicated by higher-layer signaling srs-PowerControlAdjustmentStates), SRS power control is determined based on PUSCH; otherwise, SRS uses independent power control.

[0067] PUSCH PC parameters

[0068] PLRS: Path loss estimation measured by a reference signal (RS) with an index of qd. The index is indicated by the higher-layer signaling PUSCH-PathlossReferenceRS, where qd = 0 to 3.

[0069] The PUSCH-PathlossReferenceRS includes an ID and an RS, which can be an SSB or a CSI-RS. If there is no PUSCH-PathlossReferenceRS, the SSB included in the Master Information Block (MIB) is used.

[0070] During PUSCH transmission, when the UE has SRI-PUSCH-PowerControl with different qds, for DCI format 0_1 ​​containing SRI information, the UE obtains the association (one-to-one correspondence) between the SRS resource indicator (SRI) and the PUSCH-PathlossReferenceRS-Id through higher-layer signaling; when the PUSCH is scheduled by DCI format 0_1 ​​containing a certain SRI, the qd of the corresponding PUSCH-PathlossReferenceRS is used.

[0071] For DCI format 0_0 and PUCCH configured with spatial relation information (spatial relation info), the qd corresponding to Rs in the spatial relation info of PUCCH is used.

[0072] For DCI format 0_0 and PUCCH without spatial relation info, or DCI format 0_1 ​​without SRI information, or without SRI-PUSCH-Power Control, the RS with PUSCH-PathlossReferenceRS-Id 0 is used for path loss estimation.

[0073] For Msg3PUSCH, the UE uses the RS resource index q of the corresponding PRACH d .

[0074] For ULRRC grant free, qd is configured by the upper layer; if qd is not configured, the RS with PUSCH-PathlossReferenceRS-Id of 0 is used for path loss estimation.

[0075] P0 and alpha: These components consist of po_NOMINALPUSCHf,c(j) and po_NOMINALPUSCHf,c(j). The former, without the subscript "b," represents the cell-wide carrier-level component (-202, -200, ..., 22, 24 dBm), while the latter represents the UE-specific BWP-level component (-16, -15, ..., 14, 15). The latter is paired with the alpha component, for a total of 32 pairs, collectively known as the P0-PUSCH-AlphaSet.

[0076] j=0, used when RRC does not configure P0-PUSCH-AlphaSet, or used for Message 3 PUSCH. The specific value is assigned by related high-layer signaling (preambleReceivedTargetPower, msg3-DeltaPreamble, msg3-Alpha).

[0077] j=1, used for URLLC grant free transmission. The specific value is assigned by ConfiguredGrantConfig related high-level signaling.

[0078] j = 2 to 31: Related to Grant-based transmission. Different beams can be configured with different j.

[0079] For DCI format 0_1 ​​containing SRI information, the UE obtains the association between SRI and AlphaSet Id (one-to-one correspondence) through the higher-layer signaling SRI-PUSCH-PowerControl; when PUSCH is scheduled by DCI format 0_1 ​​containing a certain SRI, the AlphaSet with the corresponding ID is used.

[0080] If DCI format 0_1 ​​does not contain SRI information or DCI format 0_0 or SRI-PUSCH-PowerControl is not configured, the value of the first P0-PUSCH-AlphaSet in the Alpha Set is used.

[0081] f b,f,c (i, l): Power control adjustment state value, where l is related to SRI, l = 0 or 1.

[0082] If the upper layer is configured with tpc-Accumulation, the mode is accumulation (-1, 0, 1, 3dB).

[0083] If tpc-Accumulation is not configured at the upper layer, the direct assignment mode (-4, -1, 1, 4dB) is used.

[0084] DCI 0_0, 0_1, 2_2 contain the adjustment value.

[0085] (5) R17, R18 power control parameters

[0086] P0 / alpha / closedloopindex / PL-RS: PUSCH and PUCCH share the same TCI state. The TCI state configuration contains the index of the P0 / alpha / closedloopindex parameter set applied to PUSCH and PUCCH respectively. The TCI state also includes the PL-RS index.

[0087] (6) SRS closed-loop power control

[0088] P0 / alpha / PL-RS: If the SRS resource set configuration follows a unified TCI state, it is obtained by the p0AlphaSetforSRS and PL-RS configured by the indicated common TCI state; if the follow unified TCI state is not configured, it is obtained by the p0AlphaSetforSRS and PL-RS configured by the TCI state associated with the minimum SRS ID configured by the SRS resource set.

[0089] If multiple TCI states or multiple uplink TCIs (UL-TCIs) are configured, the beam is the same as the PUSCH beam scheduled by the uplink grant in the random access response (RAR) before the application of the indicated TCI, i.e., P0 / alpha is determined by the SRS resource set configuration and PLRS is determined by the SSB of the received MIB.

[0090] (7) Transmit Power Control (TPC) indication

[0091] For SRS power control, the protocol stipulates that the power of the UE's SRS transmission can be controlled through DCI format 2-3, that is, the closed-loop power control parameters can be adjusted.

[0092] For format 2-3 type A, each block has multiple consecutive TPC fields, each corresponding to an uplink carrier of the same UE. Accordingly, each TPC field is also 2 bits, and the closed-loop power control parameter also enables all SRS transmissions on an uplink carrier.

[0093] -SRS request: 0 or 2 bits. The presence of this field complies with the definition in Section 11.4 of [5, TS38.213]. If the aforementioned field exists, the definition of this field is shown in Table 7.3.1.1.2-24.

[0094] -TPC command number (command number) 1, TPC command number 2, ..., TPC command number N, where each TPC command applies to the corresponding UL carrier and is provided by the higher-layer parameter cc-IndexInOneCC-Set. cc-IndexInOneCC-Set is a UE higher-layer parameter configuration that indicates the switching order of uplink carriers during carrier switching.

[0095] For format 2-3 type B, each block has only one TPC field of 2 bits for power control, and the closed-loop power parameter controlled by these 2 bits enables all SRS transmissions used on the uplink carrier of a UE corresponding to the block.

[0096] SRS request: 0 or 2 bits. The presence of this field complies with the definition in Section 11.4 of [5, TS38.213]. If the aforementioned field exists, the definition of this field is shown in Table 7.3.1.1.2-24.

[0097] -TPC command–2 bits.

[0098] Based on this, the technical solutions provided by the embodiments of the present application are described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0099] FIG2 is a flow chart illustrating a power control method 200 according to an exemplary embodiment of the present application. This method 200 may be, but is not limited to, executed by a terminal, specifically by at least one of hardware and software installed in the terminal. In this embodiment, the method 200 may include at least the following steps.

[0100] S210: The terminal receives a first signaling from a network-side device.

[0101] S220: The terminal performs power control of target uplink transmission according to the first signaling.

[0102] The first signaling is used to indicate at least one of the parameters related to the closed-loop power adjustment state supported by the SRS and the path loss offset (PL offset) related parameters. The closed-loop power adjustment state supported by the SRS includes an accumulation mode and an absolute assignment mode. The PL offset related parameters can be understood as an offset from a reference path loss, and the reference path loss may include but is not limited to: an uplink path loss measured based on a path loss reference signal configured in a TCI state or a downlink path loss between a terminal and other TRPs, such as an uplink path loss measured by a current TRP or a downlink path loss of another TRP.

[0103] In this embodiment, in the uplink and downlink decoupling scenario, independent closed-loop power control of different SRSs can be achieved through the indication of relevant parameters of the closed-loop power adjustment state supported by the SRS. For example, one or two sets of closed-loop power control adjustment states can be supported to achieve transmission power control of different SRSs, thereby ensuring uplink transmission performance. At the same time, it avoids the problem in related technologies that the closed-loop power control adjustment state of the SRS can no longer be associated or bound with the PUSCH due to uplink and downlink decoupling, thereby resulting in only supporting one set of closed-loop power adjustment for the SRS.

[0104] In addition, in the uplink and downlink decoupling scenario, the indication of the PL offset related parameters can make the PL offset related parameters independent of the measurement of the downlink received path loss reference signal, effectively solving the uplink transmission path loss calculation problem corresponding to the network node with only uplink transmission. For example, the network node that supports uplink reception but does not support downlink transmission can perform uplink transmission power control without relying on the measurement of the downlink reference signal, avoiding the problem of excessive or insufficient terminal transmit power, and ensuring uplink transmission performance.

[0105] The type of the first signaling is related to the information indicated. For example, if the first signaling is used to indicate relevant information about the closed-loop power adjustment state supported by the SRS, that is, the first signaling is used to indicate relevant information about the closed-loop power adjustment state supported by the SRS, then the first signaling may be, but is not limited to, DCI, such as DCI 0-0, DCI 0-1, etc.

[0106] For another example, if the first signaling is used to indicate PL offset related parameters, then the first signaling may be, but is not limited to, RRC signaling, a Medium Access Control Control Element (MAC CE), and the like.

[0107] It is worth noting that the network side equipment mentioned in the above embodiment of the present application can be used to deploy network nodes such as multiple TRPs as shown in Figure 1b. At the same time, in the uplink and downlink decoupling scenario, it can communicate with the terminal, such as uplink reception and downlink transmission.

[0108] In addition, the network node mentioned in the context of this application can be but is not limited to TRP.

[0109] In this embodiment, a terminal receives first signaling from a network-side device and performs power control for target uplink transmission based on the first signaling, wherein the first signaling is used to indicate at least one of parameters related to the closed-loop power adjustment state supported by the SRS and parameters related to the PL offset. Thus, for uplink and downlink decoupling scenarios, on the one hand, indicating the parameters related to the closed-loop power adjustment state supported by the SRS through the first signaling can achieve independent closed-loop power control of different SRSs, ensuring uplink transmission performance. On the other hand, indicating the PL offset-related parameters through the first signaling can make the PL offset-related parameters independent of the measurement of the downlink received path loss reference signal, effectively resolving the uplink transmission path loss calculation problem for network nodes with only uplink transmission, thereby ensuring uplink transmission performance.

[0110] FIG3a is a flow chart of a power control method 300 according to an exemplary embodiment of the present application. This method 300 may be, but is not limited to, executed by a terminal, specifically by at least one of hardware and software installed in the terminal. In this embodiment, the method 300 may include at least the following steps.

[0111] S310: The terminal receives a first signaling from a network-side device.

[0112] S320: The terminal performs power control of target uplink transmission according to the first signaling.

[0113] The first signaling is used to indicate at least one of a parameter related to a closed-loop power adjustment state supported by the SRS and a parameter related to a PL offset.

[0114] It can be understood that the implementation process of S310-S320 can refer to the relevant description in the aforementioned method embodiment 200. Of course, in addition to referring to the aforementioned method embodiment 200, as a possible implementation method, for the case where the first signaling is used to indicate the relevant parameters of the closed-loop power adjustment state supported by SRS, the process of the terminal performing power control of the target uplink transmission according to the first signaling may include but is not limited to S321-S322 shown in Figure 3a, and the content is as follows.

[0115] S321: The terminal determines the closed-loop power adjustment state supported by the SRS according to relevant parameters of the closed-loop power adjustment state supported by the SRS.

[0116] S322: Determine the transmit power of the target uplink transmission according to the closed-loop power adjustment state supported by the SRS, wherein the target uplink transmission includes the transmission of the SRS.

[0117] The parameters related to the closed-loop power adjustment state supported by the SRS may include but are not limited to at least one of the first parameter and the second parameter.

[0118] The first parameter may also be referred to as the first high-level parameter, which is used to indicate whether the closed-loop power adjustment state supported by the SRS is enabled, so that the terminal can clearly enable the closed-loop power adjustment state supported by the SRS in the uplink decoupling scenario to achieve transmission power control of different SRSs and ensure uplink transmission performance.

[0119] In one implementation, the first parameter may be introduced in the RRC IE SRS-config to indicate whether two sets of closed-loop power adjustment states supported by SRS are enabled, such as indicating whether two sets of closed-loop power adjustment states supported by SRS are enabled, or enabling one of the two sets of closed-loop power adjustment states supported by SRS, which is not limited here.

[0120] The second parameter may also be referred to as a second high-level parameter, which is used to indicate whether the closed-loop power adjustment state supported by the SRS is associated with the closed-loop power adjustment state supported by the PUSCH, so that the terminal can clearly determine the closed-loop power adjustment state supported by the SRS according to the closed-loop power adjustment state supported by the PUSCH in an uplink decoupling scenario.

[0121] In one implementation, the second parameter may be, but is not limited to, configured via srs-PowerControlAdjustmentState. For example, when the second parameter indicates separateClosedLoop, it is determined that the closed-loop power adjustment state of the SRS is not associated (or not bound) with the closed-loop power adjustment state supported by the PUSCH; otherwise, it is determined that the closed-loop power adjustment state of the SRS is associated with the closed-loop power adjustment state supported by the PUSCH.

[0122] For example, please refer to Figure 3b. When the closed-loop power adjustment state of SRS is not associated with the closed-loop power adjustment state supported by the PUSCH, the two sets of closed-loop power adjustment states supported by the SRS are enabled through the first parameter, so that the SRS1 and SRS2 sent by the UE can also use two independent sets of closed-loop power control to adjust the power to ensure uplink transmission performance.

[0123] Based on this, in an optional implementation method, if the first signaling indicates the first parameter and the second parameter, then when the first parameter indicates that the closed-loop power adjustment state supported by the SRS is enabled and the second parameter indicates that the closed-loop power adjustment state of the SRS is not associated with the closed-loop power adjustment state supported by the PUSCH, such as the second parameter is separateClosedLoop, then the terminal can determine the closed-loop power control adjustment state of the SRS based on the TCI state associated with the SRS, such as determining that the index of the closed-loop power control adjustment state of the SRS is the closed-loop power control index corresponding to the SRS configured in the TCI state, thereby realizing independent closed-loop power control of different SRSs.

[0124] Alternatively, when the first parameter indicates enabling of the closed-loop power adjustment state supported by the SRS, but the second parameter does not indicate association of the closed-loop power adjustment state of the SRS with the closed-loop power adjustment state supported by the PUSCH, if the second parameter is not separateClosedLoop, the terminal may determine the closed-loop power control adjustment state of the SRS based on the TCI state associated with the SRS. The TCI state configures a closed-loop power control state index supported by the SRS, and the closed-loop power control state index corresponds to the closed-loop power adjustment state of the PUSCH.

[0125] Exemplarily, two closed-loop power adjustment state indexes are configured in the TCI state, such as a first index and a second index, wherein the first index indicates the closed-loop power adjustment state when the SRS closed-loop power control is bound to the PUSCH closed-loop power control, and the second index indicates the independent closed-loop power control index of the SRS, that is, the closed-loop power adjustment state when the SRS closed-loop power control is not bound to the PUSCH closed-loop power control. If the second parameter of the SRS resource set configuration is configured to indicate separateClosedLoop, the closed-loop power control adjustment state of the SRS is determined by the second index configured for the TCI state associated with the SRS, otherwise it is determined by the first index configured for the TCI state associated with the SRS.

[0126] In an optional implementation, after the terminal determines the closed-loop power control adjustment state supported by the SRS based on the first parameter and the second parameter, when determining the transmission power of the target uplink transmission based on the closed-loop power adjustment state supported by the SRS, it can also determine the adjustment value of the closed-loop power control adjustment state supported by the SRS based on the obtained TPC indication to achieve the determination of the uplink transmission power.

[0127] For example, the terminal can receive a second signaling from the network side device, wherein the second signaling is used to indicate the TPC corresponding to the closed-loop power control adjustment state supported by the SRS, so that the terminal can determine the adjustment value corresponding to the closed-loop power control adjustment state supported by the SRS based on the TPC, thereby realizing subsequent power control.

[0128] In this embodiment, the second signaling may include but is not limited to a first number of first indication information, each first indication information being used to indicate at least one of the first information, the second information, and the third information. Optionally, the first number of first indication information may be carried in a TPC indication field in the second signaling.

[0129] Among them, the first information includes a first TPC and a second TPC. Among them, the first information is applicable to the situation where two sets of closed-loop power adjustment states supported by the SRS are enabled. For example, when the first parameter indicates that two sets of closed-loop power adjustment states supported by the SRS are enabled, the terminal can determine the adjustment value corresponding to the closed-loop power control adjustment state of the SRS based on the first information. Of course, the correspondence between the first TPC, the second TPC and the two sets of closed-loop power adjustment states supported by the SRS can be indicated by the first signaling, or configured by protocol agreement, and is not limited here.

[0130] The second information includes a third TPC and closed-loop power control indexes corresponding to the three TPCs. The second information is applicable to a scenario where two sets of closed-loop power adjustment states supported by the SRS are enabled. For example, if the first parameter indicates that two sets of closed-loop power adjustment states supported by the SRS are enabled, the terminal may determine, based on the second information, an adjustment value corresponding to the closed-loop power control adjustment state supported by the SRS.

[0131] The third information includes a fourth TPC. The second information is applicable to a case where two sets of closed-loop power adjustment states supported by the SRS are enabled. For example, when the first parameter indicates that one set of closed-loop power adjustment states supported by the SRS is enabled, the terminal determines an adjustment value corresponding to the closed-loop power control adjustment state of the SRS based on the third information.

[0132] It should be noted that the size of the aforementioned first number may be related to the number of component carriers (CCs) or the number of terminals involved in the target uplink transmission.

[0133] In addition, in one implementation, in addition to the aforementioned first indication information, the second signaling may also include second indication information, and the second indication information is used to indicate any one of the fourth information, the fifth information, and the sixth information.

[0134] The fourth information includes a TPC offset and a closed-loop power control index corresponding to the TPC offset, which is applicable to a case where two sets of closed-loop power adjustment states supported by the SRS are enabled. For example, the terminal determines, based on the TPC offset, an adjustment value for the closed-loop power adjustment state identified by the closed-loop power control index corresponding to the TPC offset.

[0135] In some embodiments, the fourth information can be indicated by a 2-bit indication field, wherein 1 bit is used to indicate the TPC offset and the other 1 bit is used to indicate the closed-loop power control index corresponding to the TPC offset, and the TPC offset can be an offset value relative to the TPC value indicated by the TPC indication field in the second signaling.

[0136] The fifth information includes a TPC offset corresponding to each closed-loop power adjustment state supported by the SRS, which is applicable when two sets of closed-loop power adjustment states supported by the SRS are enabled. For example, the terminal determines an adjustment value for each closed-loop power adjustment state based on the TPC offset corresponding to each closed-loop power adjustment state supported by the SRS.

[0137] In some embodiments, the fifth information may be indicated by a 2-bit indication field, and each bit corresponds to an offset of the TPC of a closed-loop power adjustment state compared to the TPC indicated by the TPC field in the second signaling.

[0138] The sixth information is used to indicate whether the TPC corresponding to the PUCCH or PUSCH is applied to the SRS. If the sixth information is used to indicate that the TPC corresponding to the PUCCH or PUSCH is applied to the SRS, the TPC corresponding to the PUCCH or PUSCH is determined as the power adjustment value of the SRS to adjust the transmit power of the SRS.

[0139] In one implementation, the sixth information may be indicated by a 1-bit indication field. For example, when the sixth information indicates that the TPC corresponding to the PUCCH or PUSCH is applied to the SRS, the terminal may determine the adjustment value corresponding to the closed-loop power control adjustment state of the SRS based on the TPC corresponding to the PUCCH or PUSCH.

[0140] In this embodiment, the second signaling may be but is not limited to DCI, such as DCI Format 0-1, DCI Format 0-2, DCI Format 1-1, DCI Format 1-2, etc., which is not limited here.

[0141] In an optional implementation, when the closed-loop power control index of the SRS is not indicated in the TCI state associated with the SRS, or the TCI state associated with the SRS is not effective, the closed-loop power control index of the SRS can be defaulted to a specified value, such as 0.

[0142] In another optional implementation, when the closed-loop power control index of the SRS is not indicated in the TCI state associated with the SRS, or the TCI state associated with the SRS is not effective, the closed-loop power control index value indicated in the first DCI format 2_3 received by the UE can be defaulted to the closed-loop control index corresponding to the SRS.

[0143] Based on this, the terminal may also determine the adjustment value corresponding to the closed-loop power control adjustment state of the SRS according to the default closed-loop power control index of the SRS.

[0144] For example, assuming that the terminal defaults the closed-loop power control index of the SRS to a specified value, and the specified value is 0, then the adjustment value corresponding to the closed-loop power control adjustment state of the SRS may be as shown in formula (1).

[0145] h b,f,c (i, l=0)=ΔP rampup,b，f，c +δ b,f,c (1)

[0146] Where ΔP rampup,b，f，c represents the sum of the random access ramp power corresponding to the activated UL BWP in carrier f in serving cell C, δ b,f,c Indicates that the activated UL BWP in carrier f in serving cell C corresponds to the TPC indicated in the random access response message.

[0147] In one implementation, the terminal may also determine, when the first condition is met, that the SRS supports two sets of closed-loop power adjustment states, and then execute the aforementioned power control scheme based on this. For example, in the UL-only TRP scenario, two sets of closed-loop power control may be supported by default, so that the power of the SRS can be more flexibly matched to the two TRPs. The first condition may include at least one of the following 11)-14).

[0148] 11) The terminal is provided or configured with two SRS resource sets, and the two SRS resources are used for codebook-based or non-codebook-based SRS transmission.

[0149] The two SRS resource sets may be configured via the high-level parameter srs-ResourceSetToAddModList or srsResourceSetToAddModListDCI-0-2, and are not limited here.

[0150] 12) The terminal is configured with PL offset.

[0151] 13) The QCL RS in the uplink TCI state configured for the terminal is SRS.

[0152] 14) The terminal is configured with an uplink TCI state of an activated second TCI state, wherein the second TCI state corresponds to a network node that supports only uplink transmission (UL-only). The network node may be, but is not limited to, a TRP.

[0153] In an embodiment of the present application, a solution for enabling the closed-loop power adjustment state supported by SRS and determining the adjustment value is provided, which can support independent closed-loop power control of different SRSs in an uplink and downlink decoupling scenario, thereby ensuring uplink transmission performance.

[0154] Figure 400 is a flow chart of a power control method 400 provided in an exemplary embodiment of the present application. This method 400 may be, but is not limited to, executed by a terminal, specifically by at least one of hardware and software installed in the terminal. In this embodiment, the method 400 may include at least the following steps.

[0155] S410: The terminal receives a first signaling from a network-side device.

[0156] S420: The terminal performs power control of target uplink transmission according to the first signaling.

[0157] The first signaling is used to indicate at least one of a parameter related to a closed-loop power adjustment state supported by the SRS and a parameter related to a PL offset.

[0158] It can be understood that the implementation process of S410-S420 can refer to the relevant description in the aforementioned method embodiment 200 or 400. Of course, in addition to referring to the aforementioned method embodiment 200 or 300, as a possible implementation method, for the case where the first signaling is used to indicate path loss offset related parameters, the process of the terminal performing power control of the target uplink transmission according to the first signaling may include but is not limited to S421-S422 shown in Figure 4, as follows.

[0159] S421: The terminal determines a target uplink transmission path loss according to the PL offset related parameters.

[0160] In this embodiment, the target uplink transmission may include but is not limited to PUSCH, PUCCH, SRS, etc.

[0161] The PL offset related parameters may include or indicate at least one of the following 21)-23).

[0162] 21) Target PL offset.

[0163] In one implementation, when the PL offset-related parameters include the target PL offset and the Quasi Co-location Reference Signal (QCL RS) in the target TCI state is an SRS, a path loss associated with a target uplink transmission is determined based on the target PL offset, and the target TCI is associated with the target uplink transmission. Thus, by combining the PL offset with the UL QCL relationship, the PL offset is configured for the terminal. This solves the problem of the terminal being unable to determine the PL offset in uplink and downlink decoupling scenarios, such as when network nodes such as TRP do not transmit downlink reference signals, thereby ensuring uplink transmission performance.

[0164] It is worth noting that the target PL offset is an offset value used by the terminal to measure path loss with reference to a target path loss reference signal, where the target reference signal is a PL-RS configured in a UL TCI state, or the target PL offset is an absolute path loss value.

[0165] 22) A second number of first associations, each first association comprising an association between a candidate TCI state and a candidate PL offset. The second number may be implemented by network configuration or other means, and the first associations comprise associations between candidate TCI states and candidate PL offsets.

[0166] In one implementation, when the PL offset-related parameters include the second number of first associations, the terminal may receive third signaling sent by the network-side device, where the third signaling is used to indicate a third association, where the third association is one of the second number of first associations, and determine the target uplink transmission path loss based on the third association or the target code point. Thus, by updating, activating, or enabling the PL offset through the third signaling, the PL offset is configured for the terminal. This can address the issue of the terminal being unable to determine the PL offset in uplink and downlink decoupling scenarios, such as when network nodes such as the TRP do not transmit downlink reference signals, thereby ensuring uplink transmission performance.

[0167] Optionally, the third signaling may be but not limited to DCI, MAC CE, etc., and the first association relationship may be but not limited to any one of the following 221)-224).

[0168] 221) Downlink TCI state, first uplink TCI state, second uplink TCI state, PL offset.

[0169] If the first association relationship is as shown in 221), it indicates that the TCI state used for the current downlink transmission is updated to the downlink TCI state indicated in 221), and the TCI state corresponding to the current uplink transmission is updated to the first uplink state and the second uplink TCI state. Simultaneously, the path loss for the uplink transmission corresponding to the first uplink TCI state and the second TCI state is determined based on a measurement value of the PL-RS associated with the first uplink TCI state and the second TCI state and the PL offset.

[0170] 222) Downlink TCI status, PL offset.

[0171] Among them, if the first association relationship is as shown in 222), it means that the TCI state used for the current downlink transmission is updated to the downlink TCI state indicated in 222), and the path loss offset value of the target uplink transmission corresponding to the current uplink TCI state is updated to the indicated PL offset.

[0172] 223) First uplink TCI state, second uplink TCI state, PL offset.

[0173] Among them, if the first association relationship is as shown in 223), it means that the corresponding TCI state of the uplink transmission is updated to the first uplink state and the second uplink TCI state, and the uplink transmission path loss corresponding to the first uplink TCI state and the second TCI state is determined according to the PL-RS measurement value associated in the first uplink TCI state and the second TCI state and the PL offset indicated in 223).

[0174] 224) First uplink TCI state, PL offset.

[0175] If the first association relationship is as shown in 224), it means updating the PL offset associated with the first TCI state.

[0176] 23) A third number of codepoints, each of which includes a second association relationship, wherein the second association relationship includes an association relationship between a candidate TCI state and a candidate PL offset. The first association relationship includes an association relationship between a candidate TCI state and a candidate PL offset.

[0177] In one implementation, when the PL offset-related parameters include the third number of codepoints, the terminal may receive third signaling sent by the network-side device, the third signaling indicating a third association relationship or a target codepoint, where the third association relationship is one of the second number of first association relationships, and the target codepoint is one of the third number of codepoints; and the target uplink transmission path loss is determined based on the third association relationship or the target codepoint. Thus, by indicating the third signaling to update, activate, or enable the PL offset, the terminal is configured with the PL offset in the absence of downlink reference signal transmission, thereby ensuring uplink transmission performance.

[0178] Optionally, similar to the aforementioned first association relationship, the second association relationship may also be any one of the following 231)-234).

[0179] 231) Downlink TCI state, first uplink TCI state, second uplink TCI state, PL offset.

[0180] 232) Downlink TCI status, PL offset.

[0181] 233) First uplink TCI state, second uplink TCI state, PL offset.

[0182] 234) First uplink TCI state, PL offset.

[0183] Among them, regarding the second association relationship, reference can be made to the relevant description of the aforementioned first association relationship, and no further details will be given here.

[0184] It is worth noting that the above 21)-23) provide three different PL offset indication methods. The actual method to be used can be implemented by protocol agreement, high-level configuration, etc., and is not restricted here.

[0185] S422: The terminal determines the target uplink transmission transmit power according to the path loss.

[0186] In one implementation, the third signaling may include a TCI state indication field for indicating the third number of code points, so that the terminal can determine the TCI state and the PL offset of the uplink transmission according to the code points indicated by the third signaling.

[0187] It is worth noting that in this embodiment, when the terminal determines the transmission power of the target uplink transmission based on the path loss, if the target uplink transmission is the transmission of SRS, then the closed-loop power adjustment state involved in the transmission power determination process can be determined according to but not limited to the closed-loop power adjustment state determination method provided in the aforementioned method embodiment 300.

[0188] In this embodiment, in the absence of downlink reference signal transmission, the network side device configures PL offset for the terminal, and the PL offset can be updated through third signaling such as MAC CE, thereby supporting flexible deployment of network nodes such as TRP and ensuring communication performance.

[0189] FIG5 is a flow chart illustrating a power control method 500 according to an exemplary embodiment of the present application. This method 500 may be, but is not limited to, performed by a network-side device, specifically, by at least one of hardware and software installed in the network-side device. In this embodiment, the method 500 may include at least the following steps.

[0190] S510: The network-side device sends a first signaling to the terminal.

[0191] The first signaling is used to indicate at least one of parameters related to a closed-loop power adjustment state supported by a sounding reference signal SRS and parameters related to a path loss offset PL offset.

[0192] In an optional implementation, when the first signaling is used to indicate relevant parameters of the closed-loop power adjustment state supported by the SRS, the relevant parameters of the closed-loop power adjustment state supported by the SRS include at least one of the following: a first parameter, used to indicate whether the closed-loop power adjustment state supported by the SRS is enabled; a second parameter, used to indicate whether the closed-loop power adjustment state supported by the SRS is associated with the closed-loop power adjustment state supported by the physical uplink shared channel PUSCH.

[0193] In an optional implementation, the method further includes: the network side device sending a second signaling to the terminal, where the second signaling is used to indicate a transmit power control TPC corresponding to a closed-loop power control adjustment state supported by the SRS.

[0194] In an optional implementation, the second signaling includes a first number of first indication information, and each first indication information is used to indicate at least one of the following: first information, the first information includes a first TPC and a second TPC; second information, the second information includes a third TPC and a closed-loop power control index corresponding to the three TPCs; third information, the third information includes a fourth TPC.

[0195] In an optional implementation, the second signaling also includes second indication information, and the second indication information is used to indicate any one of the following items: fourth information, the fourth information includes a TPC offset and a closed-loop power control index corresponding to the TPC offset; fifth information, the fifth information includes the TPC offset corresponding to each closed-loop power adjustment state supported by the SRS; sixth information is used to indicate whether the TPC corresponding to the physical uplink control channel PUCCH or PUSCH is applied to the SRS.

[0196] In an optional implementation, the PL offset-related parameter includes at least one of the following: a target PL offset; a second number of first association relationships, each of which includes an association relationship between a candidate TCI state and a candidate PL offset; and a third number of code points, each of which includes a second association relationship, each of which includes an association relationship between a candidate TCI state and a candidate PL offset; wherein the first association relationship includes an association relationship between a candidate TCI state and a candidate PL offset.

[0197] In an optional implementation, the method further includes: the network side device sends a third signaling to the terminal, the third signaling being used to indicate a third association relationship or a target code point, wherein the third association relationship is one of the second number of first association relationships, and the target code point is one of the third number of code points.

[0198] In an optional implementation, the first association relationship or the second association relationship is any one of the following: downlink TCI state, first uplink TCI state, second uplink TCI state, PL offset; downlink TCI state, PL offset; first uplink TCI state, second uplink TCI state, PL offset; first uplink TCI state, PL offset.

[0199] The power method provided in the embodiment of the present application can be executed by a power device. In the embodiment of the present application, the power device provided in the embodiment of the present application is described by taking the power device executing the power method as an example.

[0200] As shown in Figure 6, it is a structural diagram of a power device 600 provided in an embodiment of the present application. The device 600 includes: a transmission module 610, which is used to receive a first signaling from a network-side device; a processing module 620, which is used to perform power control of the target uplink transmission according to the first signaling; wherein the first signaling is used to indicate at least one of the relevant parameters of the closed-loop power adjustment state supported by the sounding reference signal SRS and the path loss offset PL offset related parameters.

[0201] In an optional implementation, the terminal performs power control of the target uplink transmission according to the first signaling, including: the terminal determines the closed-loop power adjustment state supported by the SRS according to relevant parameters of the closed-loop power adjustment state supported by the SRS; and determines the transmission power of the target uplink transmission according to the closed-loop power adjustment state supported by the SRS, wherein the target uplink transmission includes the sending of the SRS.

[0202] In an optional implementation, the relevant parameters of the closed-loop power adjustment state supported by the SRS include at least one of the following: a first parameter, used to indicate whether the closed-loop power adjustment state supported by the SRS is enabled; a second parameter, used to indicate whether the closed-loop power adjustment state supported by the SRS is associated with the closed-loop power adjustment state supported by the physical uplink shared channel PUSCH.

[0203] In an optional implementation, the closed-loop power adjustment state of the SRS is determined according to relevant parameters of the closed-loop power adjustment state supported by the SRS, including: when the first parameter indicates that the closed-loop power adjustment state supported by the SRS is enabled and the second parameter indicates that the closed-loop power adjustment state of the SRS is not associated with the closed-loop power adjustment state supported by the PUSCH, determining the closed-loop power control adjustment state of the SRS according to the transmission configuration index TCI state associated with the SRS; wherein the TCI state is configured with the closed-loop power control index corresponding to the SRS.

[0204] In an optional implementation, the closed-loop power adjustment state of the SRS is determined based on relevant parameters of the closed-loop power adjustment state supported by the SRS, and further includes: when the closed-loop power control index of the SRS is not indicated in the TCI state associated with the SRS, or the TCI state associated with the SRS is not effective, the closed-loop power control index of the SRS is defaulted to a specified value.

[0205] In an optional implementation, the closed-loop power adjustment state supported by the SRS is determined based on relevant parameters of the closed-loop power adjustment state supported by the SRS, including: receiving a second signaling from the network side device through the transmission module 610, the second signaling being used to indicate the transmit power control TPC corresponding to the closed-loop power control adjustment state supported by the SRS, and determining the adjustment value corresponding to the closed-loop power control adjustment state supported by the SRS according to the second signaling through the processing module 620.

[0206] In an optional implementation, the second signaling includes a first number of first indication information, and each first indication information is used to indicate at least one of the following: first information, the first information includes a first TPC and a second TPC; second information, the second information includes a third TPC and a closed-loop power control index corresponding to the three TPCs; third information, the third information includes a fourth TPC.

[0207] In an optional implementation, the processing module 620 determines the adjustment value corresponding to the closed-loop power control adjustment state supported by the SRS according to the second signaling, including at least one of the following: when the first parameter indicates that two sets of closed-loop power adjustment states supported by the SRS are enabled, the adjustment value corresponding to the closed-loop power control adjustment state of the SRS is determined according to the first information or the second information; when the first parameter indicates that one set of closed-loop power adjustment states supported by the SRS is enabled, the adjustment value corresponding to the closed-loop power control adjustment state of the SRS is determined according to the third information.

[0208] In an optional implementation, the second signaling also includes second indication information, and the second indication information is used to indicate any one of the following: fourth information, the fourth information including the TPC offset and the closed-loop power control index corresponding to the TPC offset; fifth information, the fifth information including the TPC offset corresponding to each closed-loop power adjustment state supported by the SRS; sixth information, used to indicate whether the TPC corresponding to the physical uplink control channel PUCCH or PUSCH is applied to the SRS.

[0209] In an optional implementation, the processing module 620 is further used to: when a first condition is met, the terminal determines that the SRS supports two sets of closed-loop power adjustment states: wherein the first condition includes at least one of the following: the terminal is provided or configured with two SRS resource sets, and the two SRS resources are used for codebook-based or non-codebook-based SRS transmission; the terminal is configured with a PL offset; the QCL RS in the uplink TCI state configured for the terminal is SRS; the uplink TCI state configured for the terminal is an activated second TCI state, wherein the second TCI state corresponds to a network node that only supports uplink transmission.

[0210] In an optional implementation, the terminal performs power control of the target uplink transmission according to the first signaling, including: determining the path loss of the target uplink transmission according to the PL offset related parameters; and determining the transmit power of the target uplink transmission according to the path loss.

[0211] In an optional implementation, the PL offset-related parameter includes at least one of the following: a target PL offset; a second number of first association relationships, each of which includes an association relationship between a candidate TCI state and a candidate PL offset; and a third number of code points, each of which includes a second association relationship, each of which includes an association relationship between a candidate TCI state and a candidate PL offset; wherein the first association relationship includes an association relationship between a candidate TCI state and a candidate PL offset.

[0212] In an optional implementation, determining the path loss of the target uplink transmission according to the PL offset-related parameters includes: when the PL offset-related parameters include the target PL offset and a quasi-co-site reference signal QCL RS in a target TCI state is an SRS, determining the path loss associated with the target uplink transmission according to the target PL offset, the target TCI being associated with the target uplink transmission.

[0213] In an optional implementation, determining the path loss of the target uplink transmission according to the PL offset-related parameters includes: receiving third signaling sent from the network-side device, where the third signaling is used to indicate a third association relationship or a target code point, wherein the third association relationship is one of the second number of first association relationships, and the target code point is one of the third number of code points; and determining the path loss of the target uplink transmission according to the third association relationship or the target code point.

[0214] In an optional implementation, the first association relationship or the second association relationship is any one of the following: downlink TCI state, first uplink TCI state, second uplink TCI state, PL offset; downlink TCI state, PL offset; first uplink TCI state, second uplink TCI state, PL offset; first uplink TCI state, PL offset.

[0215] The power device 600 in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or other device other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0216] The power device 600 provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 2 to 4 and achieve the same technical effects. To avoid repetition, they will not be described here.

[0217] As shown in Figure 7, it is a structural diagram of a power device 700 provided in an embodiment of the present application. The device 700 includes: a transmission module 710, which is used to send a first signaling to a terminal; wherein the first signaling is used to indicate at least one of the relevant parameters of the closed-loop power adjustment state supported by the sounding reference signal SRS and the path loss offset PL offset related parameters.

[0218] In an optional implementation, the relevant parameters of the closed-loop power adjustment state supported by the SRS include at least one of the following: a first parameter, used to indicate whether the closed-loop power adjustment state supported by the SRS is enabled; a second parameter, used to indicate whether the closed-loop power adjustment state supported by the SRS is associated with the closed-loop power adjustment state supported by the physical uplink shared channel PUSCH.

[0219] In an optional implementation, the transmission module 710 is further configured to send a second signaling to the terminal, where the second signaling is configured to indicate a transmit power control TPC corresponding to a closed-loop power control adjustment state supported by the SRS.

[0220] In an optional implementation, the second signaling includes a first number of first indication information, and each first indication information is used to indicate at least one of the following: first information, the first information includes a first TPC and a second TPC; second information, the second information includes a third TPC and a closed-loop power control index corresponding to the three TPCs; third information, the third information includes a fourth TPC.

[0221] In an optional implementation, the second signaling also includes second indication information, and the second indication information is used to indicate any one of the following items: fourth information, the fourth information includes a TPC offset and a closed-loop power control index corresponding to the TPC offset; fifth information, the fifth information includes the TPC offset corresponding to each closed-loop power adjustment state supported by the SRS; sixth information is used to indicate whether the TPC corresponding to the physical uplink control channel PUCCH or PUSCH is applied to the SRS.

[0222] In an optional implementation, the PL offset-related parameter includes at least one of the following: a target PL offset; a second number of first association relationships, each of which includes an association relationship between a candidate TCI state and a candidate PL offset; and a third number of code points, each of which includes a second association relationship, each of which includes an association relationship between a candidate TCI state and a candidate PL offset; wherein the first association relationship includes an association relationship between a candidate TCI state and a candidate PL offset.

[0223] In an optional implementation, the transmission module 710 is further used to send a third signaling to the terminal, where the third signaling is used to indicate a third association relationship or a target code point, wherein the third association relationship is one of the second number of first association relationships, and the target code point is one of the third number of code points.

[0224] In an optional implementation, the first association relationship or the second association relationship is any one of the following: downlink TCI state, first uplink TCI state, second uplink TCI state, PL offset; downlink TCI state, PL offset; first uplink TCI state, second uplink TCI state, PL offset; first uplink TCI state, PL offset.

[0225] The power control device 700 in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a network-side device or other device other than a network-side device. For example, the network-side device can include, but is not limited to, the types of network-side devices 12 listed above, and is not specifically limited in the embodiments of the present application.

[0226] The network-side device apparatus 700 provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 5 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0227] As shown in Figure 8, an embodiment of the present application further provides a communication device 800, including a processor 801 and a memory 802. The memory 802 stores a program or instruction that can be run on the processor 801. For example, when the communication device 800 is a terminal, the program or instruction, when executed by the processor 801, implements the various steps of the above-mentioned power control method embodiment and can achieve the same technical effect. When the communication device 800 is a network-side device, the program or instruction, when executed by the processor 801, implements the various steps of the above-mentioned power control method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0228] The present application also provides a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps in the method embodiment shown in Figure 2, Figure 3a, or Figure 4. This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment can be applied to this terminal embodiment and achieve the same technical effect. Specifically, Figure 9 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0229] The terminal 900 includes but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909 and at least some of the components of the processor 910.

[0230] Those skilled in the art will appreciate that the terminal 900 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 910 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG9 does not limit the terminal. The terminal may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0231] It should be understood that in an embodiment of the present application, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042, and the graphics processor 9041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 907 includes a touch panel 9071 and at least one of other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include two parts: a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0232] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 901 may transmit the data to the processor 910 for processing. Furthermore, the RF unit 901 may send uplink data to the network-side device. Typically, the RF unit 901 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0233] The memory 909 can be used to store software programs or instructions and various data. The memory 909 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 909 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 909 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0234] Processor 910 may include one or more processing units. Optionally, processor 910 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 910.

[0235] Among them, the radio frequency unit 901 is used to receive a first signaling from a network side device; the processing module 520 is used to perform power control of the target uplink transmission according to the first signaling; wherein, the first signaling is used to indicate at least one of the relevant parameters of the closed-loop power adjustment state supported by the sounding reference signal SRS and the path loss offset PL offset related parameters.

[0236] In an optional implementation, the terminal performs power control of the target uplink transmission according to the first signaling, including: the terminal determines the closed-loop power adjustment state supported by the SRS according to relevant parameters of the closed-loop power adjustment state supported by the SRS; and determines the transmission power of the target uplink transmission according to the closed-loop power adjustment state supported by the SRS, wherein the target uplink transmission includes the sending of the SRS.

[0237] In an optional implementation, the relevant parameters of the closed-loop power adjustment state supported by the SRS include at least one of the following: a first parameter, used to indicate whether the closed-loop power adjustment state supported by the SRS is enabled; a second parameter, used to indicate whether the closed-loop power adjustment state supported by the SRS is associated with the closed-loop power adjustment state supported by the physical uplink shared channel PUSCH.

[0238] In an optional implementation, the closed-loop power adjustment state of the SRS is determined according to relevant parameters of the closed-loop power adjustment state supported by the SRS, including: when the first parameter indicates that the closed-loop power adjustment state supported by the SRS is enabled and the second parameter indicates that the closed-loop power adjustment state of the SRS is not associated with the closed-loop power adjustment state supported by the PUSCH, determining the closed-loop power control adjustment state of the SRS according to the transmission configuration index TCI state associated with the SRS; wherein the TCI state is configured with the closed-loop power control index corresponding to the SRS.

[0239] In an optional implementation, the closed-loop power adjustment state of the SRS is determined based on relevant parameters of the closed-loop power adjustment state supported by the SRS, and further includes: when the closed-loop power control index of the SRS is not indicated in the TCI state associated with the SRS, or the TCI state associated with the SRS is not effective, the closed-loop power control index of the SRS is defaulted to a specified value.

[0240] In an optional implementation, the closed-loop power adjustment state supported by the SRS is determined according to relevant parameters of the closed-loop power adjustment state supported by the SRS, including: receiving a second signaling from the network side device through the radio frequency unit 701, the second signaling being used to indicate the transmit power control TPC corresponding to the closed-loop power control adjustment state supported by the SRS; and determining, through the processor 710, according to the second signaling, an adjustment value corresponding to the closed-loop power control adjustment state supported by the SRS.

[0241] In an optional implementation, the second signaling includes a first number of first indication information, and each first indication information is used to indicate at least one of the following: first information, the first information includes a first TPC and a second TPC; second information, the second information includes a third TPC and a closed-loop power control index corresponding to the three TPCs; third information, the third information includes a fourth TPC.

[0242] In an optional implementation, the processor 710 determines the adjustment value corresponding to the closed-loop power control adjustment state supported by the SRS based on the second signaling, including at least one of the following: when the first parameter indicates that two sets of closed-loop power adjustment states supported by the SRS are enabled, the adjustment value corresponding to the closed-loop power control adjustment state of the SRS is determined based on the first information or the second information; when the first parameter indicates that one set of closed-loop power adjustment states supported by the SRS is enabled, the adjustment value corresponding to the closed-loop power control adjustment state of the SRS is determined based on the third information.

[0243] In an optional implementation, the second signaling also includes second indication information, and the second indication information is used to indicate any one of the following: fourth information, the fourth information including the TPC offset and the closed-loop power control index corresponding to the TPC offset; fifth information, the fifth information including the TPC offset corresponding to each closed-loop power adjustment state supported by the SRS; sixth information, used to indicate whether the TPC corresponding to the physical uplink control channel PUCCH or PUSCH is applied to the SRS.

[0244] In an optional implementation, the processor 710 is further used to: when a first condition is met, the terminal determines that the SRS supports two sets of closed-loop power adjustment states: wherein the first condition includes at least one of the following: the terminal is provided or configured with two SRS resource sets, and the two SRS resources are used for codebook-based or non-codebook-based SRS transmission; the terminal is configured with a PL offset; the QCL RS in the uplink TCI state configured for the terminal is SRS; the uplink TCI state configured for the terminal is an activated second TCI state, wherein the second TCI state corresponds to a network node that only supports uplink transmission.

[0245] In an optional implementation, the terminal performs power control of the target uplink transmission according to the first signaling, including: determining the path loss of the target uplink transmission according to the PL offset related parameters; and determining the transmit power of the target uplink transmission according to the path loss.

[0246] In an optional implementation, the PL offset-related parameter includes at least one of the following: a target PL offset; a second number of first association relationships, each of which includes an association relationship between a candidate TCI state and a candidate PL offset; and a third number of code points, each of which includes a second association relationship, each of which includes an association relationship between a candidate TCI state and a candidate PL offset; wherein the first association relationship includes an association relationship between a candidate TCI state and a candidate PL offset.

[0247] In an optional implementation, determining the path loss of the target uplink transmission according to the PL offset-related parameters includes: when the PL offset-related parameters include the target PL offset and a quasi-co-site reference signal QCL RS in a target TCI state is an SRS, determining the path loss associated with the target uplink transmission according to the target PL offset, the target TCI being associated with the target uplink transmission.

[0248] In an optional implementation, determining the path loss of the target uplink transmission according to the PL offset-related parameters includes: receiving third signaling sent from the network-side device, where the third signaling is used to indicate a third association relationship or a target code point, wherein the third association relationship is one of the second number of first association relationships, and the target code point is one of the third number of code points; and determining the path loss of the target uplink transmission according to the third association relationship or the target code point.

[0249] In an optional implementation, the first association relationship or the second association relationship is any one of the following: downlink TCI state, first uplink TCI state, second uplink TCI state, PL offset; downlink TCI state, PL offset; first uplink TCI state, second uplink TCI state, PL offset; first uplink TCI state, PL offset.

[0250] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of method embodiments 200-300, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0251] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG5 . This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0252] Specifically, an embodiment of the present application also provides a network-side device. As shown in Figure 10, the network-side device 1000 includes: an antenna 1001, a radio frequency device 1002, a baseband device 1003, a processor 1004, and a memory 1005. Antenna 1001 is connected to radio frequency device 1002. In the uplink direction, radio frequency device 1002 receives information via antenna 1001 and sends the received information to baseband device 1003 for processing. In the downlink direction, baseband device 1003 processes the information to be transmitted and sends it to radio frequency device 1002. Radio frequency device 1002 processes the received information and sends it through antenna 1001.

[0253] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 1003 , which includes a baseband processor.

[0254] The baseband device 1003 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 10, one of which is, for example, a baseband processor, which is connected to the memory 1005 through a bus interface to call the program in the memory 1005 and execute the network side device operations shown in the above method embodiment.

[0255] The network side device may further include a network interface 1006, which is, for example, a Common Public Radio Interface (CPRI).

[0256] Specifically, the network side device 1000 of the embodiment of the present application also includes: instructions or programs stored in the memory 1005 and executable on the processor 1004. The processor 1004 calls the instructions or programs in the memory 1005 to execute the method of execution of each module shown in Figure 7 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0257] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned power control method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0258] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0259] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned power control method embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0260] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0261] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned power control method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0262] An embodiment of the present application also provides a wireless communication system, including: a terminal and a network-side device, wherein the terminal can be used to execute the various processes of implementing the above-mentioned power control method embodiments 200-400, and the network-side device can be used to execute the various processes of implementing the above-mentioned power control method embodiment 500, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0263] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0264] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0265] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A power control method, comprising: The terminal receives a first signaling from a network-side device; The terminal performs power control of target uplink transmission according to the first signaling; The first signaling is used to indicate at least one of parameters related to a closed-loop power adjustment state supported by a sounding reference signal SRS and parameters related to a path loss offset PL offset.

2. The method according to claim 1, wherein The terminal performing power control of target uplink transmission according to the first signaling, including: The terminal determines, according to relevant parameters of the closed-loop power adjustment state supported by the SRS, a closed-loop power adjustment state supported by the SRS; The transmit power of the target uplink transmission is determined according to a closed-loop power adjustment state supported by the SRS, wherein the target uplink transmission includes the transmission of the SRS.

3. The method according to claim 2, wherein: The parameters related to the closed-loop power adjustment state supported by the SRS include at least one of the following: The first parameter is used to indicate whether the closed-loop power adjustment state supported by the SRS is enabled; The second parameter is used to indicate whether the closed-loop power adjustment state supported by the SRS is associated with the closed-loop power adjustment state supported by the physical uplink shared channel PUSCH.

4. The method according to claim 3, wherein: The terminal determines, according to relevant parameters of the closed-loop power adjustment state supported by the SRS, the closed-loop power adjustment state supported by the SRS, including: When the first parameter indicates that a closed-loop power adjustment state supported by the SRS is enabled and the second parameter indicates that the closed-loop power adjustment state of the SRS is not associated with a closed-loop power adjustment state supported by the PUSCH, determining the closed-loop power control adjustment state of the SRS according to a transmission configuration index TCI state associated with the SRS; The TCI state is configured with a closed-loop power control index corresponding to the SRS.

5. The method according to claim 4, wherein: The determining, according to a transmission configuration index TCI state associated with the SRS, a closed-loop power control adjustment state of the SRS further includes: When the closed-loop power control index of the SRS is not indicated in the TCI state associated with the SRS, or the TCI state associated with the SRS is not valid, the closed-loop power control index of the SRS is defaulted to a specified value.

6. The method according to any one of claims 3 to 4, wherein The terminal determines, according to relevant parameters of the closed-loop power adjustment state supported by the SRS, the closed-loop power adjustment state supported by the SRS, including: The terminal receives second signaling from the network-side device, where the second signaling is used to indicate a transmit power control TPC corresponding to a closed-loop power control adjustment state supported by the SRS; An adjustment value corresponding to the closed-loop power control adjustment state supported by the SRS is determined according to the second signaling.

7. The method according to claim 6, wherein: The second signaling includes a first number of first indication information, each of which is used to indicate at least one of the following: first information, the first information including a first TPC and a second TPC; Second information, the second information including a third TPC and closed-loop power control indexes corresponding to the three TPCs; The third information includes a fourth TPC.

8. The method of claim 7, wherein: The determining, according to the second signaling, an adjustment value corresponding to the closed-loop power control adjustment state supported by the SRS includes at least one of the following: In a case where the first parameter indicates enabling two sets of closed-loop power adjustment states supported by the SRS, the terminal determines, according to the first information or the second information, an adjustment value corresponding to the closed-loop power control adjustment state of the SRS; In a case where the first parameter indicates a set of closed-loop power adjustment states enabled for support of the SRS, the terminal determines, according to the third information, an adjustment value corresponding to the closed-loop power control adjustment state of the SRS.

9. The method according to any one of claims 6 to 8, wherein The second signaling further includes second indication information, where the second indication information is used to indicate any one of the following: Fourth information, the fourth information including a TPC offset and a closed-loop power control index corresponding to the TPC offset; fifth information, the fifth information including a TPC offset corresponding to each closed-loop power adjustment state supported by the SRS; The sixth information is used to indicate whether the TPC corresponding to the physical uplink control channel PUCCH or PUSCH is applied to the SRS.

10. The method according to any one of claims 1 to 9, wherein The method further comprises: When the first condition is met, the terminal determines that the SRS supports two sets of closed-loop power adjustment states: The first condition includes at least one of the following: The terminal is provided or configured with two SRS resource sets, and the two SRS resources are used for codebook-based or non-codebook-based SRS transmission; The terminal is configured with a PL offset; The QCL RS in the uplink TCI state configured for the terminal is SRS; The uplink TCI state configured for the terminal is an activated second TCI state, wherein the second TCI state corresponds to a network node that supports only uplink transmission.

11. The method according to any one of claims 1 to 10, wherein The terminal performing power control of target uplink transmission according to the first signaling, including: The terminal determines a target uplink transmission path loss according to the PL offset related parameters; The target uplink transmission transmit power is determined according to the path loss.

12. The method of claim 11, wherein: The PL offset related parameters include at least one of the following: Target PL offset; a second number of first association relationships, each of the first association relationships including an association relationship between a candidate TCI state and a candidate PL offset, wherein the first association relationship includes an association relationship between a candidate TCI state and a candidate PL offset; A third number of code points, wherein each of the code points includes a second association relationship, and the second association relationship includes an association relationship between a candidate TCI state and a candidate PL offset.

13. The method of claim 12, wherein: The determining the target uplink transmission path loss according to the PL offset related parameters includes: When the PL offset-related parameters include the target PL offset and the quasi-co-site reference signal QCL RS in the target TCI state is an SRS, a path loss with respect to a target uplink transmission is determined according to the target PL offset, and the target TCI is associated with the target uplink transmission.

14. The method of claim 12, wherein: The determining the target uplink transmission path loss according to the PL offset related parameters includes: receiving a third signaling sent from the network-side device, the third signaling being used to indicate a third association relationship or a target code point, wherein the third association relationship is one of the second number of first association relationships, and the target code point is one of the third number of code points; The target uplink transmission path loss is determined according to the third association relationship or the target code point.

15. The method according to claim 12 or 14, wherein: The first association relationship or the second association relationship is any one of the following: Downlink TCI status, first uplink TCI status, second uplink TCI status, PL offset; Downlink TCI status, PL offset; First uplink TCI state, second uplink TCI state, PL offset; First uplink TCI state, PL offset.

16. A power control method, wherein: include: The network side device sends a first signaling to the terminal; The first signaling is used to indicate at least one of parameters related to a closed-loop power adjustment state supported by a sounding reference signal SRS and parameters related to a path loss offset PL offset.

17. The method of claim 16, wherein: The parameters related to the closed-loop power adjustment state supported by the SRS include at least one of the following: The first parameter is used to indicate whether the closed-loop power adjustment state supported by the SRS is enabled; The second parameter is used to indicate whether the closed-loop power adjustment state supported by the SRS is associated with the closed-loop power adjustment state supported by the physical uplink shared channel PUSCH.

18. The method of claim 16, wherein: The method further comprises: The network-side device sends a second signaling to the terminal, where the second signaling is used to indicate a transmit power control TPC corresponding to a closed-loop power control adjustment state supported by the SRS.

19. The method of claim 18, wherein: The second signaling includes a first number of first indication information, each of which is used to indicate at least one of the following: first information, the first information including a first TPC and a second TPC; Second information, the second information including a third TPC and closed-loop power control indexes corresponding to the three TPCs; The third information includes a fourth TPC.

20. The method according to claim 18 or 19, wherein The second signaling further includes second indication information, where the second indication information is used to indicate any one of the following: Fourth information, the fourth information including a TPC offset and a closed-loop power control index corresponding to the TPC offset; fifth information, the fifth information including a TPC offset corresponding to each closed-loop power adjustment state supported by the SRS; The sixth information is used to indicate whether the TPC corresponding to the physical uplink control channel PUCCH or PUSCH is applied to the SRS.

21. The method according to any one of claims 16 to 20, wherein The path loss offset related parameters include at least one of the following: Target PL offset; a second number of first association relationships, each of the first association relationships including an association relationship between a candidate TCI state and a candidate PL offset, wherein the first association relationship includes an association relationship between a candidate TCI state and a candidate PL offset; A third number of code points, wherein each of the code points includes a second association relationship, and the second association relationship includes an association relationship between a candidate TCI state and a candidate PL offset.

22. The method of claim 21, wherein: The method further comprises: The network side device sends a third signaling to the terminal, where the third signaling is used to indicate a third association relationship or a target code point, wherein the third association relationship is one of the second number of first association relationships, and the target code point is one of the third number of code points.

23. The method according to claim 21 or 22, wherein: The first association relationship or the second association relationship is any one of the following: Downlink TCI status, first uplink TCI status, second uplink TCI status, PL offset; Downlink TCI status, PL offset; First uplink TCI state, second uplink TCI state, PL offset; First uplink TCI state, PL offset.

24. A power control device, wherein: include: A transmission module, configured to receive a first signaling from a network-side device; a processing module, configured to perform power control of a target uplink transmission according to the first signaling; The first signaling is used to indicate at least one of parameters related to a closed-loop power adjustment state supported by a sounding reference signal SRS and parameters related to a path loss offset PL offset.

25. The apparatus of claim 24, wherein: The performing power control of target uplink transmission according to the first signaling includes: Determining a closed-loop power adjustment state supported by the SRS according to relevant parameters of the closed-loop power adjustment state supported by the SRS; The transmit power of the target uplink transmission is determined according to a closed-loop power adjustment state supported by the SRS, wherein the target uplink transmission includes the transmission of the SRS.

26. The apparatus of claim 25, wherein: The transmission module is further configured to: receive a second signaling from the network-side device, where the second signaling is configured to indicate a transmit power control TPC corresponding to a closed-loop power control adjustment state supported by the SRS.

27. A power control device comprising: A transmission module, configured to send a first signaling to a terminal; The first signaling is used to indicate at least one of parameters related to a closed-loop power adjustment state supported by a sounding reference signal SRS and parameters related to a path loss offset PL offset.

28. The apparatus of claim 27, wherein: The parameters related to the closed-loop power adjustment state supported by the SRS include at least one of the following: The first parameter is used to indicate whether the closed-loop power adjustment state supported by the SRS is enabled; The second parameter is used to indicate whether the closed-loop power adjustment state supported by the SRS is associated with the closed-loop power adjustment state supported by the physical uplink shared channel PUSCH.

29. A terminal comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 1 to 15 are implemented.

30. A network side device, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 16 to 23 are implemented.

31. A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the method according to any one of claims 1 to 15, or implements the steps of the method according to any one of claims 16 to 23.

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