Power control method, terminal and network side equipment

Abstract

The invention discloses a power control method, a terminal and network side equipment, and belongs to the technical field of communication, and the method comprises the steps that the terminal obtains a target power raising value; adjusting a lower limit value of a target transmitting power value according to the target power raising value; wherein the target transmitting power value is the transmitting power value of each beam when the terminal carries out multi-antenna simultaneous transmission, and the target transmitting power value is determined based on a maximum power back-off (MPR) relaxation value when the multi-antenna simultaneous transmission is carried out.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to a power control method, a terminal, and a network-side device. Background Art

[0002] In the millimeter-wave terminal multi-antenna co-transmission technology provided in the related art, when the terminal simultaneously performs beam transmissions in two or more directions, considering that there may be two completely overlapping beams, therefore, the lower limit of the transmission power of each beam will be forced to be reduced by 3 dB to avoid radiation overlimit and reuse the maximum power reduction (MPR) index of a single carrier.

[0003] However, during the application of the above solution, although it can handle the situation when two beams completely overlap, for the situation where the beams do not completely overlap or do not overlap, the foregoing solution provided by the related art will cause unnecessary power reduction of the terminal and affect communication performance. Summary of the Invention

[0004] Embodiments of this application provide a power control method, a terminal, and a network-side device, which can avoid unnecessary power reduction of the terminal and ensure communication performance.

[0005] In a first aspect, a power control method is provided, including: the terminal obtains a target power boost value; adjusts a lower limit value of a target transmission power value according to the target power boost value; where the target transmission power value is the transmission power value of each beam when the terminal performs multi-antenna simultaneous transmission, and the target transmission power value is determined based on a relaxation value of the maximum power reduction (MPR) during multi-antenna simultaneous transmission.

[0006] In a second aspect, a power control method is provided, including: the network-side device sends first indication information to the terminal; where the first indication information is used to indicate a target power boost value, and the target power boost value is used for the terminal to adjust a lower limit value of the target transmission power value of each beam when performing multi-antenna simultaneous transmission, and the target transmission power value is determined based on a relaxation value of the maximum power reduction (MPR) during multi-antenna simultaneous transmission.

[0007] In a third aspect, a power control device is provided, including: an obtaining module, configured to obtain a target power boost value; an adjusting module, configured to adjust a lower limit value of a target transmission power value according to the target power boost value; where the target transmission power value is the transmission power value of each beam when the terminal performs multi-antenna simultaneous transmission, and the target transmission power value is determined based on a relaxation value of the maximum power reduction (MPR) during multi-antenna simultaneous transmission.

[0008] Fourthly, a power control device is provided, including: a transmission module configured to send first indication information to a terminal; wherein, the first indication information is used to indicate a target power boost value, and the target power boost value is used by the terminal to adjust a lower limit value of a target transmission power value of each beam when transmitting simultaneously with multiple antennas, and the target transmission power value is determined based on a maximum power reduction (MPR) relaxation value when transmitting simultaneously with multiple antennas.

[0009] Fifthly, a terminal is provided, which includes a processor and a memory. The memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0010] Sixthly, a terminal is provided, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the steps of the method described in the first aspect.

[0011] Seventhly, a network-side device is provided, which includes a processor and a memory. The memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0012] Eighthly, a network-side device is provided, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the steps of the method described in the second aspect.

[0013] Ninthly, a readable storage medium is provided, and programs or instructions are stored on the readable storage medium. When the programs or instructions are 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.

[0014] Tenthly, a wireless communication system is provided, including: a terminal and a network-side device. 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.

[0015] Eleventhly, a chip is provided, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured 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.

[0016] In a twelfth aspect, there is provided a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the steps of the method described in the first aspect or the steps of the method described in the second aspect.

[0017] In the embodiments of the present application, the terminal obtains a target power boost value and adjusts the lower limit value of the target transmission power value according to the target power boost value. Thus, the problem of unnecessary reduction of the terminal power in non-extreme cases can be avoided, ensuring communication performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a wireless communication system provided by an exemplary embodiment of the present application.

[0019] Figure 2 is one of the schematic flowcharts of a power control method provided by an exemplary embodiment of the present application.

[0020] Figure 3 is another schematic flowchart of a power control method provided by an exemplary embodiment of the present application.

[0021] Figure 4a is one of the schematic interaction flowcharts of a power control method provided by an exemplary embodiment of the present application.

[0022] Figure 4b is another schematic interaction flowchart of a power control method provided by an exemplary embodiment of the present application.

[0023] Figure 5 is the fourth schematic flowchart of a power control method provided by an exemplary embodiment of the present application.

[0024] Figure 6 is one of the schematic structural diagrams of a power control device provided by an exemplary embodiment of the present application.

[0025] Figure 7 is another schematic structural diagram of a power control device provided by an exemplary embodiment of the present application.

[0026] Figure 8 is the schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.

[0027] Figure 9 is the schematic structural diagram of a terminal provided by an exemplary embodiment of the present application.

[0028] Figure 10 is the schematic structural diagram of a network-side device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application fall within the scope of protection of the present application.

[0030] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances 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 the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0031] The term "indication" in the present application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly informs the recipient of specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the recipient determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0032] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and 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 this application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and the NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6G) communication system.

[0033] Figure 1A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a 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, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home devices with wireless communication functions, such as refrigerators, TVs, washing machines, or furniture, etc.), a game console, a personal computer (PC), a teller machine, or a self-service machine, etc., which are terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be referred to as a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip, or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. Among them, the access network device can also be referred to as a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a wireless local area network (WLAN) access point (AP), 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, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0034] Next, with reference to the accompanying drawings, the technical solutions provided in the embodiments of this application will be described in detail through some embodiments and their application scenarios.

[0035] As Figure 2 shown, it is a schematic flowchart of a power control method 200 provided by an exemplary embodiment of this application. The method 200 can be, but is not limited to, executed by a terminal, and can be specifically executed by hardware or software installed in the terminal. In this embodiment, the method 200 can at least include the following steps.

[0036] S210, the terminal obtains a target power boost value.

[0037] Among them, the terminal supports the transmit power boost during multi-antenna simultaneous transmission in frequency range (FR) 2. The terminal can be a millimeter-wave terminal, such as a Fixed Wireless Access (FWA) terminal or a handheld terminal, etc.

[0038] In this embodiment, there can be various ways for the terminal to obtain the target power value. For example, the terminal can receive the target power boost value from a network-side device, or obtain the target power value according to the protocol-defined method, which is not limited here.

[0039] S220: Adjust the lower limit of the target transmit power value according to the target power increase value.

[0040] The target transmit power value is the transmit power value of each beam when the terminal transmits multiple antennas simultaneously, and the target transmit power value is determined based on the MPR relaxation value when multiple antennas transmit simultaneously. That is to say, the present application is based on the related art where the lower limit of the transmit power of each beam of the terminal is forcibly reduced by the MPR relaxation value, and the lower limit of the target transmit power value is raised to avoid unnecessary reduction of the terminal power and ensure communication performance.

[0041] For example, in this embodiment, it is considered that when the terminal transmits multiple antennas simultaneously, the related technology is to deal with the problem of radiation exceeding the limit in extremely harsh conditions such as two transmission beams overlapping or the angle being too small, and the lower limit of the transmission power of each beam of the terminal is forced to be reduced by 3dB. Therefore, in this application, by introducing a target power increase value, in non-extremely harsh conditions, such as when the transmission beams do not overlap, the lower limit of the target power value when the terminal transmits multiple antennas simultaneously is raised, thereby avoiding the terminal power in non-extremely harsh conditions, avoiding unnecessary reduction of the terminal power, and ensuring communication performance. It should be noted that the "beam" mentioned in the context of this application can also be understood as the Transmission Configuration Indicator (TCI) state, the Reference Signal (RS), the Quasi Co-location (QCL) type D information, etc.

[0042] In one implementation, the target power boost value is less than or equal to the MPR relaxation value when the terminal performs multi-antenna simultaneous transmission. The MPR relaxation value can be understood as: in order to avoid radiation over-limit and reuse the MPR of a single carrier, the MPR relaxation value when the lower limit of the transmission power of each beam of the terminal is forcibly reduced in the related technology, such as 3dB. Based on this, the target power boost value can be 1dB, 2dB, 3dB, etc.

[0043] In this embodiment, the terminal obtains the target power increase value and adjusts the lower limit of the target transmission power value according to the target power increase value, thereby avoiding the problem of unnecessary reduction of terminal power in non-extreme situations and ensuring communication performance.

[0044] like Figure 3 FIG. 3 is a flow chart of a power control method 300 provided by an exemplary embodiment of the present application. The method 300 may be, but is not limited to, executed by a terminal, and may be specifically executed by hardware or software installed in the terminal. In this embodiment, the method 300 may at least include the following steps.

[0045] S310: The terminal obtains a target power increase value.

[0046] S320: Adjust the lower limit of the target transmit power value according to the target power increase value.

[0047] The target transmit power value is the transmit power value of each beam when the terminal performs simultaneous transmission with multiple antennas, and the target transmit power value is determined based on the MPR relaxation value when multiple antennas perform simultaneous transmission.

[0048] 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 an optional implementation method, there are multiple ways for the terminal to obtain the target power boost value, which are explained below in combination with method 1-method 2 respectively.

[0049] Method 1

[0050] The terminal may receive first indication information sent by a network side device, and the first indication information is used to indicate the target power increase value. That is, in this mode 1, the network side device determines the target power value that needs to be increased, and indicates the determined target power increase value to the terminal, so that the terminal obtains the target power value to increase the lower limit value of the target transmit power value.

[0051] Optionally, the first indication information may directly carry the target power increase value, or may carry an identifier of the target power increase value. For example, if the first indication information carries an identifier of the target power increase value, and the terminal and the network-side device are configured with at least one candidate power increase value through a protocol agreement, that is, a lower limit value that allows the terminal to increase the transmission power to different degrees, then the terminal can select the target power increase value from at least one candidate power increase value according to the identifier, that is, the target power increase is one of the at least one candidate power increase value.

[0052] In an optional implementation, considering that when multiple antennas transmit simultaneously, an angle between two antenna beams is small or overlaps, which will cause IBE and EVM to increase and deteriorate, therefore, in order to ensure that there are basically no extreme conditions when the terminal performs power boosting, such as an angle between two antenna beams is small or overlaps, the network side device may send the first indication information to the terminal when it is determined that the first condition is met, wherein the first condition includes at least one of the following a)-b).

[0053] a) The IBE of the terminal when transmitting simultaneously based on multiple antennas is less than a first threshold.

[0054] b) The EVM of the terminal when transmitting simultaneously based on multiple antennas is less than a second threshold.

[0055] It can be understood that the first threshold and the second threshold can be implemented by means such as protocol agreement, and are not limited herein.

[0056] Based on this, when determining the target transmission power value indicated to the terminal, there are various ways for the network-side device to determine it. As an optional implementation manner, assume that a first association relationship is configured in the network-side device by means such as protocol agreement, and an association relationship between a candidate power boost value and a first object is pre-configured in the first association relationship. The first object includes at least one of a resource block (RB) region, a signal waveform, a signal modulation method, an in-band energy (IBE), and an error vector magnitude (EVM). Then, the network-side device can determine the target power boost value according to the first association relationship and indicate it to the terminal through the first indication information. That is to say, when configuring the candidate power boost value, the candidate power boost value can be configured in terms of one or more of the RB region, the signal waveform, the signal modulation method, the IBE, and the EVM.

[0057] Among them, the RB region may be an inner region 1, an inner region 2, an outer region, etc. defined in existing relevant specifications, or may be a newly defined region, which is not limited herein.

[0058] The signal waveform may include, but is not limited to, cyclic prefix orthogonal frequency division multiplexing (CP-OFDM), discrete Fourier transform-spread orthogonal frequency division multiplexing (DFT-S-OFDM), etc., and the signal modulation method may include, but is not limited to, quadrature phase shift keying (QPSK), quadrature amplitude modulation (QAM), etc., which are not limited herein.

[0059] For example, assume that the first object is the RB region. Then, different RB regions can be associated with different candidate power boost values. For example, RB region 1 is associated with candidate power boost value 1, and RB region 2 is associated with candidate power boost value 2. Thus, the network-side device can select the candidate power boost value associated with the RB region corresponding to the terminal as the target power boost value.

[0060] For another example, assume that the first object is the IBE. Then, different IBE values can be associated with different candidate power boost values, so that the network-side device can select the candidate power boost value associated with the IBE value of the terminal when transmitting simultaneously based on multiple antennas according to the magnitude of the determined IBE value; alternatively, only one candidate power boost value can be configured for the network-side device to determine the candidate power boost value as the target power boost value when the IBE when transmitting simultaneously based on multiple antennas is determined to be less than the first threshold, that is, the network-side device can determine the candidate power boost value having the first association relationship with the IBE as the target power boost value when the IBE when transmitting simultaneously based on multiple antennas is determined to be less than the first threshold.

[0061] For another example, assume that the first object is the EVM. Then, different EVM values can be associated with different candidate power boost values for the network-side device to select the candidate power boost value associated with the EVM value of the terminal when transmitting simultaneously based on multiple antennas according to the magnitude of the determined EVM value; alternatively, only one candidate power boost value can be configured for the network-side device to determine the candidate power boost value associated with it as the target power boost value when the EVM when transmitting simultaneously based on multiple antennas is determined to be less than the first threshold, that is, the network-side device can determine the candidate power boost value having the first association relationship with the EVM as the target power boost value when the EVM when transmitting simultaneously based on multiple antennas is determined to be less than the first threshold.

[0062] As another alternative implementation, assume that a second association relationship and a third association relationship are configured in the network-side device. Among them, the second association relationship corresponds to the IBE, and an association relationship between a candidate power boost value and a second object is configured therein. The second object includes at least one of an RB region, a signal waveform, and a signal modulation method. The third association relationship corresponds to the EVM, and an association relationship between different candidate power boost values and different third objects can be configured therein. The third object includes at least one of an RB region, a signal waveform, and a signal modulation method.

[0063] Based on this, if the network-side device determines that the IBE when the terminal transmits simultaneously based on multiple antennas is less than a first threshold, then the target power boost value can be obtained according to a second association relationship corresponding to the IBE. For example, first select the second association relationship corresponding to the IBE, and then select the target power boost value according to one or more of the RB region, signal waveform, and signal modulation method corresponding to the terminal. Exemplarily, as shown in Table 1, a possible second association relationship provided in this embodiment is shown.

[0064] Table 1

[0065]

[0066] In Table 1, Outer and Inner in the table represent different RB placement regions, and Inner can be further divided into RB Region 1 (Region1) and RB Region 2 (Region2). In addition, the magnitudes of different target power boost values in Table 1 can be determined according to communication requirements and are not limited here.

[0067] Similarly, for the case where the network-side device determines that the EVM when the terminal transmits simultaneously based on multiple antennas is less than a second threshold, the network-side device can obtain the target power boost value according to a third association relationship corresponding to the EVM. For example, first select the third association relationship corresponding to the EVM, and then select the target power boost value according to one or more of the RB region, signal waveform, and signal modulation method corresponding to the terminal. It can be understood that the representation of the third association relationship is similar to that of the second association relationship. The only difference is that the third association relationship is used when the EVM when the terminal transmits simultaneously based on multiple antennas is less than the second threshold, and the second association relationship is used when the IBE when the terminal transmits simultaneously based on multiple antennas is less than the first threshold.

[0068] In one implementation, the terminal can send terminal capability information to the network-side device; where the terminal capability information is used to indicate that the terminal supports the transmit power boost when transmitting simultaneously based on multiple antennas in frequency range FR2, so that when the network-side device determines the transmit power boost when the terminal supports transmitting simultaneously based on multiple antennas in frequency range (FR)2, it then sends a first indication message to the terminal, thereby avoiding the problem of invalid transmission of the first indication message due to the terminal not supporting the transmit power boost when transmitting simultaneously based on multiple antennas in FR2.

[0069] Method 2

[0070] Assume that at least one candidate power boost value is configured in the terminal through means such as protocol agreements, that is, the lower limit value of the transmission power allowed to be boosted by the terminal to different degrees. Then, the terminal can select one from at least one candidate power boost value as the target power boost value as needed. That is to say, in this Mode 2, it is the terminal that independently determines the target power boost value according to the protocol agreement method.

[0071] For example, the terminal can select the target power value and boost the power when it determines that the first condition is met; otherwise, it does not select the target power value and boost the power, so as to ensure that the selection of the target power value and the power boost by the terminal are carried out under non-extremely harsh conditions. In one implementation, the first condition can be obtained by the terminal receiving the second indication information sent by the network-side device, that is, the second indication information is used to indicate the second condition.

[0072] Based on this, in one implementation, when the terminal selects the target power boost value, the selection method is similar to the method by which the network-side device selects the target power boost value in the aforementioned Mode 1.

[0073] For example, in an optional implementation, assume that a first association relationship is configured in the terminal through means such as protocol agreements, and the association relationship between the candidate power boost value and the first object is pre-configured in the first association relationship. The first object includes at least one of the RB region, signal waveform, signal modulation method, in-band energy (IBE), and error vector magnitude (EVM). Then, the terminal can determine the target power boost value according to the first association relationship. That is to say, when configuring the candidate power boost value, the candidate power boost value can be configured in units of one or more of the RB region, signal waveform, signal modulation method, IBE, and EVM.

[0074] The RB region can be inner region 1, inner region 2, outer defined in the existing relevant specifications, or a newly defined region, which is not limited here.

[0075] The signal waveform can include but is not limited to CP-OFDM, DFT-S-OFDM, etc., and the signal modulation method can include but is not limited to QPSK, QAM, etc., which is not limited here.

[0076] For example, assume that the first object is the RB region. Then, different RB regions can be associated with different candidate power boost values. For example, RB region 1 is associated with candidate power boost value 1, and RB region 2 is associated with candidate power boost value 2. Thus, the terminal can select the candidate power boost value associated with the RB region corresponding to the terminal as the target power boost value.

[0077] For another example, assume that the first object is the IBE. Then, different IBE values can be associated with different candidate power boost values, or only one candidate power boost value can be configured. When the IBE of the terminal during multi-antenna simultaneous transmission is determined to be less than a first threshold, the candidate power boost value is determined as the target power boost value. Then, the terminal can select the candidate power boost value associated with it according to the magnitude of the IBE value of the terminal during multi-antenna simultaneous transmission.

[0078] That is to say, for the case where only one candidate power boost value is configured, when the IBE of the terminal during multi-antenna simultaneous transmission is determined to be less than the first threshold, the candidate power boost value having the first association relationship with the IBE is determined as the target power boost value.

[0079] For another example, assume that the first object is the EVM. Then, different EVM values can be associated with different candidate power boost values for the terminal to select the candidate power boost value associated with it according to the magnitude of the EVM value of the terminal during multi-antenna simultaneous transmission; or only one candidate power boost value can be configured. When the EVM of the terminal during multi-antenna simultaneous transmission is determined to be less than the first threshold, the candidate power boost value associated with it is determined as the target power boost value. That is to say, when the EVM of the terminal during multi-antenna simultaneous transmission is determined to be less than the first threshold, the candidate power boost value having the first association relationship with the EVM is determined as the target power boost value.

[0080] In addition, as another alternative implementation, assume that the second association relationship and the third association relationship are configured in the terminal. The second association relationship corresponds to the IBE and configures the association relationship between the candidate power boost value and the second object, where the second object includes at least one of the RB region, signal waveform, and signal modulation method; the third association relationship corresponds to the EVM and can configure different association relationships between different candidate power boost values and different third objects, where the third object includes at least one of the RB region, signal waveform, and signal modulation method.

[0081] Based on this, if the terminal determines that the IBE when the terminal transmits simultaneously based on multiple antennas is less than a first threshold, then the target power boost value can be obtained according to a second association relationship corresponding to the IBE. For example, first select the second association relationship corresponding to the IBE, and then select the target power boost value according to one or more of the RB region, signal waveform, and signal modulation method corresponding to the terminal. The implementation method of the second association relationship can refer to Table 1 shown above.

[0082] Similarly, for the case where the terminal determines that the EVM when the terminal transmits simultaneously based on multiple antennas is less than a second threshold, then the terminal can obtain the target power boost value according to a third association relationship corresponding to the EVM. For example, first select the third association relationship corresponding to the EVM, and then select the target power boost value according to one or more of the RB region, signal waveform, and signal modulation method corresponding to the terminal.

[0083] It can be understood that when the terminal determines that the IBE when transmitting simultaneously based on multiple antennas is less than the first threshold and the EVM when transmitting simultaneously based on multiple antennas is less than the second threshold, it is determined according to the second indication information sent by the network side device.

[0084] Based on the determination of the foregoing target power boost value, in one implementation, when the terminal adjusts the lower limit value of the target transmission power value according to the target power boost value, the adjusted lower limit value P of the target transmission power value 下限 can be as shown in formula (1).

[0085]

[0086] wherein, the P powerclass is the minimum effective isotropic radiated power of the terminal (UE minimum EIRP) specified by the preset power level, the ΔP IBE is the boost value of the uplink power when the in-band radiation index is relaxed, ΔP sTxMP is the target power boost value, the MPR f，c，k is the maximum output power reduction value (Maximum output power reduction for carrier f of serving cell c of TCI state k), the ΔMPR sTxMPThe MPR relaxation value per beam allowed for simultaneous transmission by the terminal's multiple antennas to multiple directions (Allowed relaxation to MPR requirement due to support for simultaneous transmission to multiple directions, per each of indicated TCI states), T() is the tolerance for different power variations, and the A-MPR f，c，k is the maximum power back-off value configured to meet the radiated power regulatory requirements, and the P-MPR f，c，k is the power back-off value used to meet the electromagnetic radiation requirements (The Power Management UE Maximum Power Reduction for carrier f of serving cell c of TCI state k), and ΔMB P,n is the maximum power relaxation value allowed when the terminal supports multiple bands (Allowed relaxation to each, minimum peak EIRP and reference sensitivity due to support for multi-band operation, per supported band in a combination), and ΔT sTxMP is the maximum power relaxation value allowed when the terminal's multiple antennas simultaneously transmit to multiple directions (Allowed relaxation to EIRP requirements due to support for simultaneous transmission to multiple directions).

[0087] Based on this, in one implementation, P 下限 ≤P UMAX,f,c,k ≤EIRP max where the P UMAX,f,c,k is the target transmit power of the terminal (The measured total radiated power for carrier f of serving cell c of state k), and the EIRP max is the maximum output power allowed by the regulatory agency. Thus, when the terminal simultaneously transmits to multiple directions through multiple antennas, it can ensure that the target transmit power value actually adopted by the terminal meets the lifted limit value while meeting the maximum output power allowed by the regulatory agency.

[0088] In this embodiment, in the case of simultaneous transmission of millimeter-wave multi-antennas, by means of network indication or protocol agreement, the lower limit value of the transmission power of the terminal is allowed to be increased to varying degrees, so as to compensate for the basic power back-off that has to be imposed on the terminal due to considering the worst-case scenario, ensure the transmission power of the terminal, and improve the communication performance.

[0089] Based on the description of the foregoing method embodiments 200-300, for the sake of easy understanding, the power control method provided in this application will be introduced exemplarily below in combination with Examples 1-2.

[0090] Example 1: As shown in Figure 4, the network-side device indicates the target power boost value to the terminal

[0091] S411, the terminal sends terminal capability information to the network-side device; wherein, the terminal capability information is used to indicate the transmission power boost when the terminal supports simultaneous transmission of multiple antennas in the frequency range FR2.

[0092] S412, the network-side device determines whether the first condition is satisfied, such as whether the IBE of the terminal based on simultaneous transmission of multiple antennas is less than the first threshold or whether the EVM of the terminal based on simultaneous transmission of multiple antennas is less than the second threshold.

[0093] S413, if it is determined that the network-side device determines that the first condition is satisfied, then the target power boost value is determined.

[0094] S414, the network-side device sends the first indication information to the terminal, wherein the first indication information is used to indicate the target power boost value.

[0095] S415, the terminal adjusts the lower limit value of the target transmission power value of each beam when simultaneously transmitting multiple antennas according to the target power boost value indicated by the first indication information.

[0096] S416, the terminal determines the target transmission power value of each beam when simultaneously transmitting multiple antennas based on the adjusted lower limit value.

[0097] It can be understood that S411-S416 have the same or corresponding technical features as the foregoing method embodiments 200-300. Therefore, the implementation process of S411-S416 can refer to the description of the foregoing method embodiments 200-300 and will not be elaborated here.

[0098] In addition, the power control method provided in this example may include but is not limited to the foregoing S411-S416, such as it may include more or fewer steps.

[0099] Example 2: As Figure 4bAs shown, the terminal autonomously determines the target power boost value.

[0100] S421, the network-side device determines whether the first condition is met, such as whether the IBE when the terminal transmits simultaneously using multiple antennas is less than the first threshold or whether the EVM when the terminal transmits simultaneously using multiple antennas is less than the second threshold.

[0101] S422, when it is determined that the first condition is met, the network-side device sends second indication information to the terminal, and the second indication information is used to indicate the first condition.

[0102] S423, the terminal determines that the lower limit value of the target transmit power value needs to be boosted according to the second indication information, and then can further determine the target power boost value.

[0103] S424, the terminal adjusts the lower limit value of the target transmit power value of each beam when transmitting simultaneously using multiple antennas according to the determined target power boost value.

[0104] S425, the terminal determines the target transmit power value of each beam when transmitting simultaneously using multiple antennas based on the adjusted lower limit value.

[0105] It can be understood that S421 - S425 have the same or corresponding technical features as those in the foregoing method embodiments 200 - 300. Therefore, the implementation process of S421 - S425 can refer to the description of the foregoing method embodiments 200 - 300, and will not be elaborated here.

[0106] In addition, the power control method provided in this example may include but is not limited to the foregoing S421 - S425, and may include more or fewer steps, for example.

[0107] Such as Figure 5 As shown, it is a schematic flowchart of a power control method 500 provided by an exemplary embodiment of the present application. The method 500 may be executed by a network-side device but is not limited thereto, and may be specifically executed by hardware or software installed in the network-side device. In this embodiment, the method 500 may at least include the following steps.

[0108] S510, the network-side device sends first indication information to the terminal;

[0109] Wherein, the first indication information is used to indicate the target power boost value, and the target power boost value is used for the terminal to adjust the lower limit value of the target transmit power value of each beam when transmitting simultaneously using multiple antennas, and the target transmit power value is determined based on the maximum power reduction (MPR) relaxation value when transmitting simultaneously using multiple antennas.

[0110] In one implementation, at least one candidate power boost value is configured in the network-side device, and the target power boost value is one of the at least one candidate power boost value.

[0111] In one implementation, the method further includes: the network-side device determines the target power boost value according to a first association relationship; wherein, the first association relationship is configured with the association relationship between the candidate power boost value and a first object, and the first object includes at least one of a resource block (RB) region, a signal waveform, a signal modulation method, an in-band emission power (IBE), and an error vector magnitude (EVM).

[0112] In one implementation, the network-side device determines the target power boost value according to the first association relationship, including at least one of the following: when the first object is the IBE and it is determined that the IBE based on multi-antenna simultaneous transmission is less than a first threshold, determining the candidate power boost value having the first association relationship with the IBE as the target power boost value; when the first object is the EVM and the EVM is less than a second threshold, determining the candidate power boost value having the first association relationship with the EVM as the target power boost value.

[0113] In one implementation, the method further includes at least one of the following: when it is determined that the IBE based on multi-antenna simultaneous transmission is less than the first threshold, the network-side device obtains the target power boost value according to a second association relationship corresponding to the IBE, and the second association relationship is configured with the association relationship between different candidate power boost values and different second objects, and the second object includes at least one of a resource block (RB) region, a signal waveform, and a signal modulation method; when it is determined that the EVM based on multi-antenna simultaneous transmission is less than the second threshold, the network-side device obtains the target power boost value according to a third association relationship corresponding to the EVM, and the third association relationship is configured with the association relationship between different candidate power boost values and different third objects, and the third object includes at least one of a resource block (RB) region, a signal waveform, and a signal modulation method.

[0114] In one implementation, the target power boost value is less than or equal to the MPR relaxation value during multi-antenna simultaneous transmission.

[0115] In one implementation, the method further includes: when the network-side device determines that a first condition is satisfied, performing the step of sending first indication information to the terminal, or performing the step of sending second indication information to the terminal, where the second indication information is used to indicate the first condition; where the first condition includes at least one of the following: the in-band emission (IBE) of the terminal when transmitting simultaneously based on multiple antennas is less than a first threshold; the error vector magnitude (EVM) of the terminal when transmitting simultaneously based on multiple antennas is less than a second threshold.

[0116] In one implementation, the method further includes: the network-side device receives terminal capability information sent by the terminal, where the terminal capability information is used to indicate the transmit power boost when the terminal supports simultaneous transmission based on multiple antennas in frequency range FR2; and performs the step of sending first indication information to the terminal according to the terminal capability information.

[0117] In the power control method provided in the embodiments of the present application, the execution subject may be a power control device. In the embodiments of the present application, taking the power control device executing the power control method as an example, the power control device provided in the embodiments of the present application is described.

[0118] As Figure 6 shown, it is a schematic structural diagram of a power control device 600 provided in an embodiment of the present application. The device 600 includes: an acquisition module 610, configured to acquire a target power boost value; an adjustment module 620, configured to adjust a lower limit value of a target transmit power value according to the target power boost value; where the target transmit power value is the transmit power value of each beam when the terminal performs simultaneous transmission based on multiple antennas, and the target transmit power value is determined based on the maximum power reduction (MPR) relaxation value when transmitting simultaneously based on multiple antennas.

[0119] In an optional implementation, acquiring the target power boost value includes: receiving first indication information sent by a network-side device; where the first indication information is used to indicate the target power boost value.

[0120] In an optional implementation, at least one candidate power boost value is pre-configured in the terminal, and the target power boost value is one of the at least one candidate power boost values.

[0121] In an optional implementation, acquiring the target power boost value includes: determining the target power boost value according to a first association relationship; where the first association relationship configures the association relationship between candidate power boost values and a first object, and the first object includes at least one of a resource block (RB) region, a signal waveform, a signal modulation method, an in-band emission (IBE), and an error vector magnitude (EVM).

[0122] In an alternative implementation, determining the target power boost value according to the first association relationship includes at least one of the following: when the first object is the IBE and it is determined that the IBE based on multi-antenna simultaneous transmission is less than a first threshold, determining the candidate power boost value having the first association relationship with the IBE as the target power boost value; when the first object is the EVM and the EVM is less than a second threshold, determining the candidate power boost value having the first association relationship with the EVM as the target power boost value.

[0123] In an alternative implementation, obtaining the target power boost value includes at least one of the following: when it is determined that the IBE based on multi-antenna simultaneous transmission is less than a first threshold, obtaining the target power boost value according to a second association relationship corresponding to the IBE, where the second association relationship configures the association relationship between the candidate power boost value and a second object, and the second object includes at least one of an RB region, a signal waveform, and a signal modulation method; when it is determined that the EVM based on multi-antenna simultaneous transmission is less than a second threshold, obtaining the target power boost value according to a third association relationship corresponding to the EVM, where the third association relationship configures the association relationship between different candidate power boost values and different third objects, and the third object includes at least one of a resource block RB region, a signal waveform, and a signal modulation method.

[0124] In an alternative implementation, the obtaining module 610 is further configured to: receive second indication information sent by a network-side device; the adjustment module 620 is further configured to perform the step of obtaining the target power boost value according to the second indication information; where the second indication information is used to indicate at least one of the following: the IBE of the terminal based on multi-antenna simultaneous transmission is less than a first threshold; the EVM of the terminal based on multi-antenna simultaneous transmission is less than a second threshold.

[0125] In an alternative implementation, the target power boost value is less than or equal to the MPR relaxation value during multi-antenna simultaneous transmission.

[0126] In an alternative implementation, the lower limit value P of the adjusted target transmit power value 下限 is determined according to the following formula:

[0127] where the P powerclass is the minimum EIRP of the terminal specified by a preset power level, the ΔP IBE is the boost value of the uplink power when the in-band radiation index is relaxed, ΔP sTxMP is the target power boost value, the MPR f，c，k is the maximum power back-off value, the ΔMPRsTxMP is the MPR relaxation value for each beam allowed when the terminal's multi-antenna transmits in multiple directions simultaneously, T() is the tolerance for different power changes, and the A-MPR f，c，k is the maximum power back-off value configured to meet the radiation power regulatory requirements, and the P-MPR f，c，k is the power back-off value used to meet the electromagnetic radiation requirements, and ΔMB P,n is the maximum power relaxation value allowed when the terminal supports multiple frequency bands, and ΔT sTxMP is the maximum power relaxation value allowed when the terminal's multi-antenna transmits in multiple directions simultaneously.

[0128] In an alternative implementation, P 下限 ≤P UMAX,f,c,k ≤EIRP max where the P UMAX,f,c,k is the target transmit power of the terminal, and the EIRP max is the maximum output power allowed by the regulatory agency.

[0129] In an alternative implementation, the obtaining module is further configured to send terminal capability information to the network-side device; wherein, the terminal capability information is used to indicate the transmit power boost when the terminal supports multi-antenna simultaneous transmission in the frequency range FR2.

[0130] The power control device 600 in the embodiments of the present application may 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 a chip. The electronic device may be a terminal or other devices other than the terminal. Exemplarily, the terminal may include, but is not limited to, the types of the terminal 11 listed above, and other devices may be a server, a Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0131] The power control device 600 provided in the embodiments of the present application can implement Figures 2 to 3 each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0132] As Figure 7 shown, it is a schematic structural diagram of a power control device 700 provided in an embodiment of the present application. The device 700 includes: a transmission module 710, configured to send first indication information to a terminal; wherein, the first indication information is used to indicate a target power boost value, and the target power boost value is used for the terminal to adjust the lower limit value of the target transmit power value of each beam when multi-antenna transmits simultaneously, and the target transmit power value is determined based on the maximum power back-off MPR relaxation value when multi-antenna transmits simultaneously.

[0133] In an alternative implementation, at least one candidate power boost value is configured in the network-side device, and the target power boost value is one of the at least one candidate power boost values.

[0134] In an alternative implementation, the apparatus 700 further includes: a first determination module, configured to determine the target power boost value according to a first association relationship; wherein, the first association relationship is configured with an association relationship between a candidate power boost value and a first object, and the first object includes at least one of a resource block (RB) region, a signal waveform, a signal modulation method, an in-band emission power (IBE), and an error vector magnitude (EVM).

[0135] In an alternative implementation, the determining the target power boost value according to the first association relationship includes at least one of the following: when the first object is the IBE and it is determined that the IBE based on multi-antenna simultaneous transmission is less than a first threshold, determining the candidate power boost value having the first association relationship with the IBE as the target power boost value; when the first object is the EVM and the EVM is less than a second threshold, determining the candidate power boost value having the first association relationship with the EVM as the target power boost value.

[0136] In an alternative implementation, the apparatus 700 further includes a second determination module, configured to perform at least one of the following: when it is determined that the IBE based on multi-antenna simultaneous transmission is less than a first threshold, obtaining the target power boost value according to a second association relationship corresponding to the IBE, where the second association relationship is configured with an association relationship between different candidate power boost values and different second objects, and the second objects include at least one of a resource block (RB) region, a signal waveform, and a signal modulation method; when it is determined that the EVM based on multi-antenna simultaneous transmission is less than a second threshold, obtaining the target power boost value according to a third association relationship corresponding to the EVM, where the third association relationship is configured with an association relationship between different candidate power boost values and different third objects, and the third objects include at least one of a resource block (RB) region, a signal waveform, and a signal modulation method.

[0137] In an alternative implementation, the target power boost value is less than or equal to the MPR relaxation value during multi-antenna simultaneous transmission.

[0138] In an alternative implementation, the transmission module 710 is further configured to, when determining that a first condition is satisfied, perform the step of sending the first indication information to the terminal, or perform the step of sending second indication information to the terminal, where the second indication information is used to indicate the first condition; where the first condition includes at least one of the following: the IBE of the terminal when transmitting simultaneously based on multiple antennas is less than a first threshold; the EVM of the terminal when transmitting simultaneously based on multiple antennas is less than a second threshold.

[0139] In an alternative implementation, the transmission module 710 is further configured to: receive terminal capability information sent by the terminal, where the terminal capability information is used to indicate the transmission power boost of the terminal when supporting simultaneous transmission of multiple antennas in the frequency range FR2; and perform the step of sending the first indication information to the terminal according to the terminal capability information.

[0140] The power control device 700 in the embodiments of the present application may 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 a chip. This electronic device may be a network-side device. Exemplarily, the network-side device may include, but is not limited to, the types of the network-side devices 12 listed above, and the embodiments of the present application do not make specific limitations.

[0141] The power control device 700 provided in the embodiments of the present application can implement Figure 5 each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, details are not described here again.

[0142] As Figure 8 shown, the embodiments of the present application further provide a communication device 800, including a processor 801 and a memory 802. A program or instruction that can run on the processor 801 is stored on the memory 802. For example, when the communication device 800 is a terminal, when the program or instruction is executed by the processor 801, it implements each step of the above power control method embodiment and can achieve the same technical effects. When the communication device 800 is a network-side device, when the program or instruction is executed by the processor 801, it implements each step of the above power control method embodiment and can achieve the same technical effects. To avoid repetition, details are not described here again.

[0143] The embodiments of the present application further provide a terminal, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run a program or instruction to implement the steps in the method embodiments as Figure 2 or Figure 3 shown. This terminal embodiment corresponds to the above terminal-side method embodiment. Each implementation process and implementation manner of the above method embodiment can be applied to this terminal embodiment and can achieve the same technical effects. Specifically,Figure 9 Schematic diagram of the hardware structure of a terminal according to an embodiment of the present application.

[0144] The terminal 900 includes, but is not limited to, at least some components such as 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 a processor 910.

[0145] Those skilled in the art can understand that the terminal 900 may further include a power source (such as a battery) for supplying power to each component. The power source may be logically connected to the processor 910 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 9 The terminal structure shown does not limit the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0146] It should be understood that in the embodiment of the present application, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042. The graphics processor 9041 processes the image data of static pictures or videos 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 at least one of a touch panel 9071 and 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. The 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 a joystick, which will not be elaborated here.

[0147] In the embodiment of the present application, after the radio frequency unit 901 receives downlink data from a network-side device, it can be transmitted to the processor 910 for processing; in addition, the radio frequency unit 901 can send uplink data to the network-side device. Generally, the radio frequency unit 901 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0148] The memory 909 can be used to store software programs or instructions as well as 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. Among them, the first storage area can store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 909 can include volatile memory or non-volatile memory. Among them, the non-volatile memory can 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. The volatile memory can be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DRRAM). The memory 909 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0149] The processor 910 may include one or more processing units; optionally, the processor 910 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor may not be integrated into the processor 910 either.

[0150] Among them, the processor 910 is used to obtain a target power boost value; and adjust a lower limit value of a target transmit power value according to the target power boost value; where the target transmit power value is the transmit power value of each beam when the terminal performs multi-antenna simultaneous transmission, and the target transmit power value is determined based on a maximum power reduction (MPR) relaxation value during multi-antenna simultaneous transmission.

[0151] In an alternative implementation, the obtaining of the target power boost value includes: receiving first indication information sent by a network-side device; wherein, the first indication information is used to indicate the target power boost value.

[0152] In an alternative implementation, at least one candidate power boost value is pre-configured in the terminal, and the target power boost value is one of the at least one candidate power boost values.

[0153] In an alternative implementation, the obtaining of the target power boost value includes: determining the target power boost value according to a first association relationship; wherein, the first association relationship configures the association relationship between the candidate power boost value and a first object, and the first object includes at least one of a resource block (RB) region, a signal waveform, a signal modulation method, an in-band emission power (IBE), and an error vector magnitude (EVM).

[0154] In an alternative implementation, the determining of the target power boost value according to the first association relationship includes at least one of the following: when the first object is the IBE and it is determined that the IBE based on multi-antenna simultaneous transmission is less than a first threshold, determining the candidate power boost value having the first association relationship with the IBE as the target power boost value; when the first object is the EVM and the EVM is less than a second threshold, determining the candidate power boost value having the first association relationship with the EVM as the target power boost value.

[0155] In an alternative implementation, the obtaining of the target power boost value includes at least one of the following: when it is determined that the IBE based on multi-antenna simultaneous transmission is less than a first threshold, obtaining the target power boost value according to a second association relationship corresponding to the IBE, the second association relationship configuring the association relationship between the candidate power boost value and a second object, and the second object includes at least one of an RB region, a signal waveform, and a signal modulation method; when it is determined that the EVM based on multi-antenna simultaneous transmission is less than a second threshold, obtaining the target power boost value according to a third association relationship corresponding to the EVM, the third association relationship configuring the association relationship between different candidate power boost values and different third objects, and the third object includes at least one of a resource block (RB) region, a signal waveform, and a signal modulation method.

[0156] In an alternative implementation, the radio frequency unit 901 is configured to receive second indication information sent by a network-side device; the processor 9100 is further configured to perform the step of obtaining the target power boost value according to the second indication information; wherein, the second indication information is used to indicate at least one of the following: the IBE of the terminal based on multi-antenna simultaneous transmission is less than a first threshold; the EVM of the terminal based on multi-antenna simultaneous transmission is less than a second threshold.

[0157] In an alternative implementation, the target power boost value is less than or equal to the MPR relaxation value during multi-antenna simultaneous transmission.

[0158] In an alternative implementation, the lower limit value P of the adjusted target transmit power value 下限 is determined according to the following formula:

[0159] wherein, the P powerclass is the minimum EIRP of the terminal specified by a preset power level, the ΔP IBE is the uplink power boost value when the in-band radiation index is relaxed, ΔP sTxMP is the target power boost value, the MPR f，c，k is the maximum power back-off value, the ΔMPR sTxMP is the MPR relaxation value allowed on each beam when the terminal's multi-antenna transmits in multiple directions simultaneously, T() is the tolerance for different power changes, the A-MPR f，c，k is the maximum power back-off value configured to meet the radiation power regulatory requirements, the P-MPR f，c，k is the power back-off value used to meet the electromagnetic radiation requirements, the ΔMB P,n is the maximum power relaxation value allowed when the terminal supports multiple frequency bands, the ΔT sTxMP is the maximum power relaxation value allowed when the terminal's multi-antenna transmits in multiple directions simultaneously.

[0160] In an alternative implementation, P 下限 ≤P UMAX,f,c,k ≤EIRP max wherein, the P UMAX,f,c,k is the target transmit power of the terminal, and the EIRP max is the maximum output power allowed by the regulatory agency.

[0161] In an alternative implementation, the obtaining module is further configured to send terminal capability information to the network-side device; wherein, the terminal capability information is used to indicate the transmit power boost when the terminal supports multi-antenna simultaneous transmission in the frequency range FR2.

[0162] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment may refer to the relevant descriptions of Method Embodiments 200-300, and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0163] An embodiment of the present application further provides a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement as Figure 5 the steps of the method embodiment shown. This network-side device embodiment corresponds to the above network-side device method embodiment. Each implementation process and implementation manner of the above method embodiment can be applied to this network-side device embodiment, and the same technical effects can be achieved.

[0164] Specifically, an embodiment of the present application further provides a network-side device. As Figure 10 shown, 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. The antenna 1001 is connected to the radio frequency device 1002. In the uplink direction, the radio frequency device 1002 receives information through the antenna 1001 and sends the received information to the baseband device 1003 for processing. In the downlink direction, the baseband device 1003 processes the information to be sent and sends it to the radio frequency device 1002. After processing the received information, the radio frequency device 1002 sends it out through the antenna 1001.

[0165] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1003, and the baseband device 1003 includes a baseband processor.

[0166] The baseband device 1003 may include, for example, at least one baseband board, and multiple chips are provided on the baseband board. As Figure 10 shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1005 through a bus interface to call the programs in the memory 1005 and execute the operations of the network device shown in the above method embodiments.

[0167] The network-side device may further include a network interface 1006, and this interface is, for example, a Common Public Radio Interface (CPRI).

[0168] Specifically, the network-side device 1000 in the embodiment of the present application further includes: instructions or programs stored on the memory 1005 and executable on the processor 1004. The processor 1004 calls the instructions or programs in the memory 1005 to execute Figure 7 the methods executed by the respective modules shown, and achieve the same technical effects. To avoid repetition, they will not be elaborated here.

[0169] The embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned power control method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be elaborated here.

[0170] Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disc, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0171] The embodiment of the present application further provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement each process of the above-mentioned power control method embodiment, and the same technical effect can be achieved. To avoid repetition, it will not be elaborated here.

[0172] It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-on-chip, system chip, chip system or system-on-chip, etc.

[0173] The 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 each process of the above-mentioned power control method embodiment, and the same technical effect can be achieved. To avoid repetition, it will not be elaborated here.

[0174] The embodiment of the present application further provides a wireless communication system, including: a terminal and a network-side device. The terminal can be used to implement each process of the above-mentioned power control method embodiment 200-300, and the network-side device can be used to implement each process of the above-mentioned power control method embodiment 500, and the same technical effect can be achieved. To avoid repetition, it will not be elaborated here.

[0175] It should be noted that in this text, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising such 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, but may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0176] Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, it can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.

[0177] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the purpose of the present application and the scope protected by the claims. These embodiments are all within the protection scope of the present application.

Claims

1. A power control method, characterized in that, Including: The terminal obtains a target power boost value; Adjust the lower limit value of the target transmit power value according to the target power boost value; Wherein, the target transmit power value is the transmit power value of each beam when the terminal performs multi-antenna simultaneous transmission, and the target transmit power value is determined based on the maximum power reduction (MPR) relaxation value during multi-antenna simultaneous transmission.

2. The method according to claim 1, characterized in that, The terminal obtains a target power boost value, including: The terminal receives first indication information sent by the network-side device; Wherein, the first indication information is used to indicate the target power boost value.

3. The method according to claim 1, wherein The terminal obtains a target power boost value, including: The terminal determines the target power boost value according to a first association relationship; Wherein, the first association relationship configures the association relationship between candidate power boost values and a first object, and the first object includes at least one of a resource block (RB) region, a signal waveform, a signal modulation method, in-band emission power (IBE), and error vector magnitude (EVM).

4. The method according to claim 3, characterized in that, The terminal determines the target power boost value according to the first association relationship, including at least one of the following: When the first object is the IBE and it is determined that the IBE during multi-antenna simultaneous transmission is less than a first threshold, determine the candidate power boost value having the first association relationship with the IBE as the target power boost value; When the first object is the EVM and the EVM is less than a second threshold, determine the candidate power boost value having the first association relationship with the EVM as the target power boost value.

5. The method according to claim 1, characterized in that, The terminal obtains a target power boost value, including at least one of the following: When it is determined that the IBE during multi-antenna simultaneous transmission is less than a first threshold, the terminal obtains the target power boost value according to a second association relationship corresponding to the IBE. The second association relationship configures the association relationship between candidate power boost values and a second object, and the second object includes at least one of an RB region, a signal waveform, and a signal modulation method; When it is determined that the EVM during multi-antenna simultaneous transmission is less than a second threshold, the terminal obtains the target power boost value according to a third association relationship corresponding to the EVM. The third association relationship configures the association relationship between different candidate power boost values and different third objects, and the third object includes at least one of a resource block (RB) region, a signal waveform, and a signal modulation method.

6. The method according to any one of claims 1-5, characterized in that, The method further includes: Receiving second indication information sent by the network-side device; According to the second indication information, perform the step of obtaining the target power boost value; Wherein, the second indication information is used to indicate at least one of the following: The IBE of the terminal during multi-antenna simultaneous transmission is less than a first threshold; The EVM of the terminal during multi-antenna simultaneous transmission is less than a second threshold.

7. The method according to any one of claims 1-6, characterized in that, The lower limit value P of the adjusted target transmit power value 下限 is determined according to the following formula: Among them, the P powerclass is the minimum effective isotropic radiated power EIRP of the terminal specified for the preset power level, the ΔP IBE is the uplink power increase value when the in-band radiation index is relaxed, ΔP sTxMP is the target power increase value, the MPR f，c，k is the maximum power back-off value, the ΔMPR sTxMP is the MPR relaxation value allowed for each beam when the terminal's multiple antennas transmit simultaneously in multiple directions, T() is the tolerance for different power changes, the A-MPR f，c，k is the maximum power back-off value configured to meet the radiation power supervision requirements, the P-MPR f，c，k is the power back-off value used to meet the electromagnetic radiation requirements, the ΔMB P,n is the maximum power relaxation value allowed when the terminal supports multiple frequency bands, the ΔT sTxMP is the maximum power relaxation value allowed when the terminal's multiple antennas transmit simultaneously in multiple directions.

8. The method according to claim 7, characterized in that P 下限 ≤P UMAX,f,c,k ≤EIRP max , the P UMAX,f,c,k is the target transmit power sent by the terminal, and the EIRP max is the maximum output power permitted by the regulatory agency.

9. The method according to any one of claims 1-8, characterized in that The method further includes: The terminal sends terminal capability information to the network-side device; Wherein, the terminal capability information is used to indicate that the terminal supports transmit power boost during multi-antenna simultaneous transmission in frequency range FR2.

10. A power control method, characterized in that, Including: The network-side device sends first indication information to the terminal; Among them, the first indication information is used to indicate a target power boost value, and the target power boost value is used for the terminal to adjust the lower limit value of the target transmission power value of each beam when transmitting simultaneously with multiple antennas. The target transmission power value is determined based on the maximum power reduction (MPR) relaxation value during simultaneous transmission with multiple antennas.

11. The method according to claim 10, wherein The method further includes: The network-side device determines the target power boost value according to a first association relationship; Among them, the first association relationship configures the association relationship between candidate power boost values and a first object, and the first object includes at least one of a resource block (RB) region, a signal waveform, a signal modulation method, an in-band emission power (IBE), and an error vector magnitude (EVM).

12. The method according to claim 11, wherein The network-side device determines the target power boost value according to the first association relationship, including at least one of the following: When the first object is the IBE and it is determined that the IBE during simultaneous transmission with multiple antennas is less than a first threshold, the candidate power boost value having the first association relationship with the IBE is determined as the target power boost value; When the first object is the EVM and the EVM is less than a second threshold, the candidate power boost value having the first association relationship with the EVM is determined as the target power boost value.

13. The method according to claim 10, wherein The method further includes at least one of the following: When it is determined that the IBE during simultaneous transmission with multiple antennas is less than the first threshold, the network-side device obtains the target power boost value according to a second association relationship corresponding to the IBE. Different candidate power boost values and different second objects are configured in the second association relationship, and the second object includes at least one of a resource block (RB) region, a signal waveform, and a signal modulation method; When it is determined that the EVM during simultaneous transmission with multiple antennas is less than the second threshold, the network-side device obtains the target power boost value according to a third association relationship corresponding to the EVM. Different candidate power boost values and different third objects are configured in the third association relationship, and the third object includes at least one of a resource block (RB) region, a signal waveform, and a signal modulation method.

14. The method according to any one of claims 10-11, characterized in that The method further includes: When the network-side device determines that a first condition is satisfied, it performs the step of sending the first indication information to the terminal, or performs the step of sending second indication information to the terminal, and the second indication information is used to indicate the first condition; Among them, the first condition includes at least one of the following: The IBE of the terminal during simultaneous transmission with multiple antennas is less than the first threshold; The EVM of the terminal during simultaneous transmission with multiple antennas is less than the second threshold.

15. The method according to any one of claims 10-14, characterized in that, The method further includes: The network-side device receives the terminal capability information sent by the terminal, where the terminal capability information is used to indicate that the terminal supports the transmission power boost during simultaneous transmission with multiple antennas in frequency range FR2; Performs the step of sending the first indication information to the terminal according to the terminal capability information.

16. A power control device, characterized in that, Includes: An acquisition module, configured to acquire a target power boost value; An adjustment module, configured to adjust a lower limit value of a target transmission power value according to the target power boost value; Wherein, the target transmission power value is the transmission power value of each beam when the terminal performs multi-antenna simultaneous transmission, and the target transmission power value is determined based on a maximum power reduction (MPR) relaxation value during multi-antenna simultaneous transmission.

17. The device according to claim 16, wherein, The obtaining the target power boost value includes: Receiving first indication information sent by a network-side device; Wherein, the first indication information is used to indicate the target power boost value.

18. The device according to claim 16, wherein The obtaining module is further configured to: receive second indication information sent by the network-side device; The adjustment module is further configured to execute the step of obtaining the target power boost value according to the second indication information; Wherein, the second indication information is used to indicate at least one of the following: The in-band emission (IBE) of the terminal during multi-antenna simultaneous transmission is less than a first threshold; The error vector magnitude (EVM) of the terminal during multi-antenna simultaneous transmission is less than a second threshold.

19. The device according to any one of claims 16-18, characterized in that, The obtaining module is further configured to send terminal capability information to the network-side device; Wherein, the terminal capability information is used to indicate that the terminal supports transmission power boost during multi-antenna simultaneous transmission in frequency range FR2.

20. A power control device, characterized in that, Comprising: A transmission module, configured to send first indication information to the terminal; Wherein, the first indication information is used to indicate a target power boost value, and the target power boost value is used for the terminal to adjust a lower limit value of the target transmission power value of each beam during multi-antenna simultaneous transmission, and the target transmission power value is determined based on a maximum power reduction (MPR) relaxation value during multi-antenna simultaneous transmission.

21. The device according to claim 20, characterized in that, The transmission module is further configured to, when determining that a first condition is satisfied, execute the step of sending the first indication information to the terminal, or execute the step of sending second indication information to the terminal, and the second indication information is used to indicate the first condition; Wherein, the first condition includes at least one of the following: The in-band emission (IBE) of the terminal during multi-antenna simultaneous transmission is less than a first threshold; The error vector magnitude (EVM) of the terminal during multi-antenna simultaneous transmission is less than a second threshold.

22. The device according to claim 20 or 21, characterized in that, The transmission module is further configured to: receive the terminal capability information sent by the terminal, where the terminal capability information is used to indicate that the terminal supports transmission power boost during multi-antenna simultaneous transmission in frequency range FR2; and execute the step of sending the first indication information to the terminal according to the terminal capability information.

23. A terminal, characterized in that, Comprising a processor and a memory, where the memory stores a program or instruction that can 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 9 are implemented.

24. A network-side device, characterized in that, Comprising a processor and a memory, where the memory stores a program or instruction that can 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 10 to 15 are implemented.

25. A readable storage medium, characterized in that, A program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to any one of claims 1 to 9 are implemented, or the steps of the method according to any one of claims 10 to 15 are implemented.

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