Power control method, and terminal and network-side device

Abstract

The present application belongs to the technical field of communications. Disclosed are a power control method, and a terminal and a network-side device. The method in the embodiments of the present application comprises: a terminal acquiring a target power boost value; and adjusting a lower limit value of a target transmission power value on the basis of the target power boost value, wherein the target transmission power value is a transmission power value of each beam when the terminal performs multi-antenna simultaneous transmission, and the target transmission power value is determined on the basis of the maximum power reduction (MPR) relaxation value during the multi-antenna simultaneous transmission.

Description

Power control method, terminal and network side equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 29, 2023, with application number 202311871507.X and invention name “Power Control Method, Terminal and Network Side Equipment”. The entire contents of the Chinese patent application are incorporated herein by reference. Technical Field

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

[0004] In the millimeter-wave terminal multi-antenna simultaneous transmission technology provided in the related technology, when the terminal transmits beams in two or more directions at the same time, considering that there may be complete overlap of two beams, the lower limit of the transmission power of each beam will be forcibly reduced by 3dB to avoid radiation exceeding the limit and reuse the maximum power reduction indicator (MPR) of a single carrier.

[0005] However, during the application of the above-mentioned solution, although it can cope with the situation when the two beams completely overlap, for the situation where the beams do not completely overlap or do not overlap at all, the above-mentioned solution provided by the relevant technology will cause unnecessary power reduction of the terminal, affecting the communication performance. Summary of the Invention

[0006] The embodiments of the present application provide a power control method, a terminal, and a network-side device, which can avoid unnecessary power reduction of the terminal and ensure communication performance.

[0007] In the first aspect, a power control method is provided, including: a terminal obtains a target power increase value; and adjusts a lower limit value of a target transmit power value according to the target power increase value; wherein the target transmit power value is the transmit power value of each beam when the terminal performs simultaneous transmission of multiple antennas, and the target transmit power value is determined based on a maximum power backoff MPR relaxation value when multiple antennas are transmitted simultaneously.

[0008] In the second aspect, a power control method is provided, including: a network side device sends a first indication information to a terminal; wherein, the first indication information is used to indicate a target power increase value, and the target power increase value is used by the terminal to adjust the lower limit value of the target transmission power value of each beam when multiple antennas are transmitted simultaneously, and the target transmission power value is determined based on the maximum power backoff MPR relaxation value when multiple antennas are transmitted simultaneously.

[0009] On the third aspect, a power control device is provided, including: an acquisition module for acquiring a target power increase value; an adjustment module for adjusting the lower limit value of the target transmission power value according to the target power increase value; wherein the target transmission power value is the transmission power value of each beam when the terminal performs simultaneous transmission of multiple antennas, and the target transmission power value is determined based on the maximum power backoff MPR relaxation value when multiple antennas are transmitted simultaneously.

[0010] In the fourth aspect, a power control device is provided, including: a transmission module for sending a first indication information to a terminal; wherein the first indication information is used to indicate a target power increase value, and the target power increase value is used by the terminal to adjust the lower limit value of the target transmission power value of each beam when multiple antennas are transmitted simultaneously, and the target transmission power value is determined based on the maximum power backoff MPR relaxation value when multiple antennas are transmitted simultaneously.

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

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

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

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

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

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

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

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

[0019] In an embodiment of the present application, the terminal obtains a target power increase value and adjusts the lower limit of the target transmission power value according to the target power increase value. In this way, the problem of unnecessary reduction of terminal power in non-extreme situations can be avoided, thereby ensuring communication performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic structural diagram of a wireless communication system provided by an exemplary embodiment of the present application.

[0021] FIG2 is a flowchart of a power control method according to an exemplary embodiment of the present application.

[0022] FIG3 is a second flowchart of a power control method provided by an exemplary embodiment of the present application.

[0023] FIG4 a is one of the interactive flow diagrams of a power control method provided by an exemplary embodiment of the present application.

[0024] FIG4 b is a second interactive flow diagram of a power control method provided by an exemplary embodiment of the present application.

[0025] FIG5 is a fourth flowchart of a power control method provided by an exemplary embodiment of the present application.

[0026] FIG6 is a schematic diagram of a structure of a power control device according to an exemplary embodiment of the present application.

[0027] FIG7 is a second structural diagram of a power control device provided by an exemplary embodiment of the present application.

[0028] FIG8 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.

[0029] FIG9 is a schematic structural diagram of a terminal provided by an exemplary embodiment of the present application.

[0030] FIG10 is a schematic structural diagram of a network-side device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0032] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0033] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0034] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0035] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (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 (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0036] The technical solutions provided by the embodiments of the present application are described in detail below through some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0037] FIG2 is a flow chart of a power control method 200 according to an exemplary embodiment of the present application. The method 200 may be, but is not limited to, executed by a terminal, specifically by hardware or software installed in the terminal. In this embodiment, the method 200 may include at least the following steps.

[0038] S210: The terminal obtains a target power increase value.

[0039] The terminal supports a transmission power boost when multiple antennas transmit simultaneously in frequency range (FR) 2. The terminal may be a millimeter wave terminal, such as a fixed wireless access (FWA) terminal or a handheld terminal.

[0040] In this embodiment, the terminal may obtain the target power value in a variety of ways. For example, the terminal may receive the target power increase value from the network side device, or may obtain the target power value according to the protocol agreement. There is no limitation here.

[0041] S220: Adjust the lower limit of the target transmit power value according to the target power increase value.

[0042] The target transmit power value is the transmit power value of each beam when the terminal performs simultaneous multi-antenna transmission, and the target transmit power value is determined based on the MPR relaxation value when the multi-antenna is transmitting simultaneously. In other words, this application raises the lower limit of the target transmit power value based on the related art that forcibly lowers the transmit power lower limit of each beam of the terminal by the MPR relaxation value, so as to avoid unnecessary reduction in terminal power and ensure communication performance.

[0043] For example, in this embodiment, it is taken into account that when the terminal transmits multiple antennas simultaneously, the related art is to deal with problems such as 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.

[0044] In one implementation, the target power boost value is less than or equal to the MPR relaxation value when the terminal performs simultaneous multi-antenna transmission. The MPR relaxation value can be understood as the MPR relaxation value, such as 3dB, used in related technologies to forcibly lower the transmit power limit for each beam of the terminal to avoid exceeding the radiation limit and reuse the MPR of a single carrier. Based on this, the target power boost value can be 1dB, 2dB, 3dB, etc.

[0045] 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.

[0046] FIG3 is a flow chart of a power control method 300 according to an exemplary embodiment of the present application. The method 300 may be, but is not limited to, executed by a terminal, specifically by hardware or software installed in the terminal. In this embodiment, the method 300 may include at least the following steps.

[0047] S310: The terminal obtains a target power increase value.

[0048] S320: Adjust the lower limit of the target transmit power value according to the target power increase value.

[0049] The target transmit power value is the transmit power value of each beam when the terminal performs simultaneous multi-antenna transmission, and the target transmit power value is determined based on the MPR relaxation value when the multi-antennas perform simultaneous transmission.

[0050] 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.

[0051] Method 1

[0052] The terminal may receive first indication information sent by a network-side device, where the first indication information is used to indicate the target power increase value. That is, in this method 1, the network-side device determines the target power value for which a power increase is required, 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 of the target transmit power value.

[0053] 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.

[0054] In an optional implementation, considering that when multiple antennas transmit simultaneously, the angle between the 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 harsh conditions when the terminal performs power boosting, such as the angle between the 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).

[0055] a) The IBE of the terminal when transmitting simultaneously based on multiple antennas is less than a first threshold.

[0056] b) The EVM of the terminal when transmitting simultaneously based on multiple antennas is less than a second threshold.

[0057] It can be understood that the first threshold and the second threshold can be implemented by protocol agreement or other means, and are not limited here.

[0058] Based on this, when the network side device determines the target transmit power value indicated to the terminal, there are multiple ways to determine it. As an optional implementation method, it is assumed that a first association relationship is configured in the network side device through a protocol agreement or the like, and the first association relationship is pre-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 mode, in-band energy (IBE), and an error vector magnitude (EVM). Then, the network side device can determine the target power boost value based on the first association relationship and indicate it to the terminal through the first indication information. That is, when configuring the candidate power boost value, the candidate power boost value can be configured with one or more of the RB region, signal waveform, signal modulation mode, IBE, and EVM as the granularity.

[0059] The RB region may be inner region 1, inner region 2, outer region, etc. defined in existing relevant specifications, or may be a newly defined region, which is not limited here.

[0060] The signal waveform may include but is not limited to Cyclic Prefix Orthogonal Frequency Division Multiplexing (CP-OFDM), Discrete Fourier Transform-Spread OFD (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., and is not limited here.

[0061] For example, assuming that the first object is the RB area, then different RB areas can be associated with different candidate power boost values, such as RB area 1 is associated with candidate power boost value 1, and RB area 2 is associated with candidate power boost value 2, so that the network side device can select the candidate power boost value associated with it as the target power boost value according to the RB area corresponding to the terminal.

[0062] For another example, assuming that the first object is the IBE, 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 it according to the size of the IBE value of the terminal when it is determined that the terminal is transmitting simultaneously based on multiple antennas; or only one candidate power boost value can be configured, so that when the network side device determines that the IBE based on multiple antennas transmitting simultaneously is less than the first threshold, the candidate power boost value is determined to be the target power boost value, 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 it is determined that the IBE based on multiple antennas transmitting simultaneously is less than the first threshold.

[0063] For another example, assuming that the first object is the EVM, different EVM values ​​may be associated with different candidate power boost values, so that the network side device can select the candidate power boost value associated with it according to the size of the EVM value of the terminal when it is determined that the terminal is transmitting simultaneously based on multiple antennas; or only one candidate power boost value may be configured, so that when the network side device determines that the EVM based on multiple antennas transmitting simultaneously is less than a first threshold, the candidate power boost value associated with it is determined to be the target power boost value, that is, the network side device may determine the candidate power boost value having the first association relationship with the EVM as the target power boost value when it is determined that the EVM based on multiple antennas transmitting simultaneously is less than the first threshold.

[0064] As another optional implementation, assume that the network-side device configures a second association relationship and a third association relationship, wherein the second association relationship corresponds to IBE and includes an association relationship between a candidate power boost value and a second object, the second object including at least one of RB region, signal waveform, and signal modulation mode. The third association relationship corresponds to EVM and includes association relationships between different candidate power boost values ​​and different third objects, the third object including at least one of RB region, signal waveform, and signal modulation mode.

[0065] Based on this, if the network-side device determines that the IBE of the terminal when transmitting simultaneously using multiple antennas is less than a first threshold, then the target power boost value may be obtained based on a second association relationship corresponding to the IBE. For example, the second association relationship corresponding to the IBE is first selected, and then the target power boost value is selected based on one or more of the RB area, signal waveform, and signal modulation mode corresponding to the terminal. For example, Table 1 shows a possible second association relationship provided in this embodiment.

[0066] Table 1

[0067] In Table 1, the outer and inner regions represent different RB placement areas, with the inner region further divided into RB Region 1 and RB Region 2. Furthermore, the target power boost values ​​in Table 1 can be determined based on communication requirements and are not limited here.

[0068] Similarly, for the situation where the network-side device determines that the EVM of the terminal is less than the second threshold when transmitting based on multiple antennas simultaneously, the network-side device may obtain the target power boost value based on a third association relationship corresponding to the EVM, such as first selecting the third association relationship corresponding to the EVM, and then selecting the target power boost value based on one or more of the RB area, 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, with the only difference being that the third association relationship is used when the EVM of the terminal is less than the second threshold when transmitting based on multiple antennas simultaneously, and the second association relationship is used when the IBE of the terminal is less than the first threshold when transmitting based on multiple antennas simultaneously.

[0069] In one implementation, the terminal may send terminal capability information to the network side device; wherein the terminal capability information is used to indicate that the terminal supports a transmission power increase when multiple antennas transmit simultaneously in the frequency range FR2, so that the network side device sends the first indication information to the terminal when determining that the terminal supports a transmission power increase when multiple antennas transmit simultaneously in the frequency range (FR) 2, thereby avoiding the invalid sending problem of the first indication information due to the terminal not supporting the transmission power increase when multiple antennas transmit simultaneously in FR 2.

[0070] Method 2

[0071] Assuming that at least one candidate power boost value is configured in the terminal through a protocol agreement or other means, i.e., a lower limit value that allows the terminal to increase transmit power to varying degrees, the terminal can select one of the at least one candidate power boost value as the target power boost value as needed. In other words, in this approach 2, the terminal autonomously determines the target power boost value according to the protocol agreement.

[0072] For example, the terminal may select the target power value and increase the power when determining that the first condition is met; otherwise, the target power value may not be selected and the power may not be increased, thereby ensuring that the target power value selection and power increase performed by the terminal are performed under non-extremely harsh conditions. In one implementation, the first condition may be obtained by the terminal by receiving second indication information sent by a network-side device, that is, the second indication information is used to indicate the second condition.

[0073] Based on this, in one implementation, when the terminal selects the target power increase value, the selection method is similar to the selection method of the target power increase value performed by the network side device described in the aforementioned method 1.

[0074] For example, in an optional implementation, it is assumed that a first association relationship is configured in the terminal through a protocol agreement or the like, and the first association relationship is pre-configured with an association relationship between a candidate power boost value and a first object, and the first object includes at least one of an RB area, a signal waveform, a signal modulation mode, in-band radiated power (In-band Energy, IBE) and an error vector magnitude (Error Vector Magnitude, EVM). Then, the terminal can determine the target power boost value based on the first association relationship. That is, when configuring the candidate power boost value, the candidate power boost value can be configured with one or more of the RB area, signal waveform, signal modulation mode, IBE and EVM as the granularity.

[0075] The RB region may be inner region 1, inner region 2, outer, defined in existing relevant specifications, or may be a newly defined region, which is not limited here.

[0076] The signal waveform may include but is not limited to CP-OFDM, DFT-S-OFDM, etc., and the signal modulation method may include but is not limited to QPSK, QAM, etc., which are not limited here.

[0077] For example, assuming that the first object is the RB area, then different RB areas can be associated with different candidate power boost values, such as RB area 1 is associated with candidate power boost value 1, and RB area 2 is associated with candidate power boost value 2, so that the terminal can select the candidate power boost value associated with it as the target power boost value according to the RB area corresponding to the terminal.

[0078] For another example, assuming the first object is the IBE, different IBE values ​​may be associated with different candidate power boost values, or only one candidate power boost value may be configured, so that when the terminal determines that the IBE during simultaneous transmission using multiple antennas is less than a first threshold, the terminal determines the candidate power boost value as the target power boost value. The terminal may then select the associated candidate power boost value based on the magnitude of the determined IBE value during simultaneous transmission using multiple antennas.

[0079] That is to say, in the case where only one candidate power boost value is configured, the terminal may determine the candidate power boost value having the first association relationship with the IBE as the target power boost value when it is determined that the IBE based on simultaneous transmission of multiple antennas is less than the first threshold.

[0080] For another example, assuming that the first object is the EVM, different EVM values ​​may be associated with different candidate power boost values, so that the terminal can select the candidate power boost value associated with it based on the size of the EVM value determined when the terminal transmits simultaneously with multiple antennas. Alternatively, only one candidate power boost value may be configured, so that when the terminal determines that the EVM when transmitting simultaneously with multiple antennas is less than a first threshold, the terminal determines that the candidate power boost value associated with it is the target power boost value. In other words, when the terminal determines that the EVM when transmitting simultaneously with multiple antennas is less than the first threshold, the terminal may determine the candidate power boost value having the first association with the EVM as the target power boost value.

[0081] In addition, as another optional implementation method, it is assumed that the second association relationship and the third association relationship are configured in the terminal, wherein the second association relationship corresponds to the IBE, and an association relationship between the candidate power boost value and the second object is configured therein, and the second object includes at least one of the RB area, signal waveform, and 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, and the third object includes at least one of the RB area, signal waveform, and signal modulation method.

[0082] Based on this, if the terminal determines that the IBE when the terminal transmits simultaneously using multiple antennas is less than the first threshold, then the target power boost value may be obtained based on a second association relationship corresponding to the IBE. For example, the second association relationship corresponding to the IBE is first selected, and then the target power boost value is selected based on one or more of the RB region, signal waveform, and signal modulation mode corresponding to the terminal. The implementation of the second association relationship may refer to that shown in Table 1.

[0083] Similarly, for the case where the terminal determines that the EVM of the terminal when transmitting based on multiple antennas simultaneously is less than the second threshold, the terminal can obtain the target power increase value based on the third association relationship corresponding to the EVM, such as first selecting the third association relationship corresponding to the EVM, and then selecting the target power increase value based on one or more of the RB area, signal waveform, and signal modulation method corresponding to the terminal.

[0084] It can be understood that when the terminal determines that the IBE based on simultaneous transmission of multiple antennas is less than the first threshold and the EVM based on simultaneous transmission of multiple antennas is less than the second threshold, it is determined based on the second indication information sent by the network side device.

[0085] Based on the determination of the target power increase value, in one implementation, when the terminal adjusts the lower limit of the target transmit power value according to the target power increase value, the adjusted lower limit of the target transmit power value P 下限 It can be shown as formula (1). 下限 =P powerclass +ΔP IBE +ΔP sTxMP -max(max(MPR f，c，k , A-MPR f，c，k )+ΔMPR sTxMP +ΔMB P,n ,P-MPR f，c，k ) -max{T(max(MPR f，c，k ,A-MPR f，c，k )+ΔMPR sTxMP ),T(P-MPR f，c，k )}-ΔT sTxMP (1)

[0086] Among them, the P powerclass The UE minimum Effective Isotropic Radiated Power (UE minimum EIRP) is the minimum effective isotropic radiated power of the terminal specified by the preset power level. The ΔP IBEΔP is the increase in uplink power when the in-band radiation index is relaxed. sTxMP is the target power increase value, the MPR f，c，k is the maximum power reduction value (Maximum output power reduction for carrier f of serving cell c of TCI state k), the ΔMPR sTxMP 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 changes, and the A-MPR f，c，k The maximum power fallback value configured to meet the radiated power regulatory requirements, P-MPR f，c，k The Power Management UE Maximum Power Reduction for carrier f of serving cell c of TCI state k is the power fallback value used to meet electromagnetic radiation requirements. ΔMB P,n is the maximum power relaxation value allowed when the terminal supports multiple frequency bands (Allowed relaxation to each, minimum peak EIRP and reference sensitivity due to support for multi-band operation, per supported band in a combination), ΔT sTxMP It is the maximum power relaxation value allowed when the terminal has multiple antennas transmitting in multiple directions simultaneously (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 , the P UMAX,f,c,kThe target transmit power of the terminal (The measured total radiated power for carrier f of serving cell c of state k), the EIRP max It is the maximum output power allowed by the regulatory agency. Therefore, when the terminal transmits in multiple directions simultaneously through multiple antennas, it can ensure that the target transmission power value actually used by the terminal meets the increased limit value while meeting the maximum output power allowed by the regulatory agency.

[0088] In this embodiment, when multiple millimeter-wave antennas are transmitting simultaneously, the terminal is allowed to raise the lower limit of the transmission power to varying degrees through network instructions or protocol agreement to compensate for the basic power backoff that has to be imposed on the terminal due to consideration of the worst case scenario, thereby ensuring the terminal transmission power and improving communication performance.

[0089] Based on the description of the aforementioned method embodiments 200-300, for ease of understanding, the power control method provided in this application is exemplarily introduced below in combination with Examples 1-2.

[0090] Example 1: As shown in Figure 4, the network side device indicates the target power increase 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 that the terminal supports a transmission power increase when multiple antennas transmit simultaneously in the frequency range FR2.

[0092] S412, the network side device determines whether the first condition is met, such as whether the IBE of the terminal when transmitting based on multiple antennas simultaneously is less than a first threshold or whether the EVM when transmitting based on multiple antennas simultaneously is less than a second threshold.

[0093] S413: If it is determined that the network-side device satisfies the first condition, a target power increase value is determined.

[0094] S414: The network-side device sends first indication information to the terminal, where the first indication information is used to indicate the target power increase value.

[0095] S415: The terminal adjusts a lower limit of a target transmission power value of each beam when multiple antennas transmit simultaneously according to the target power increase value indicated by the first indication information.

[0096] S416: The terminal determines a target transmission power value for each beam when performing simultaneous multi-antenna transmission based on the adjusted lower limit value.

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

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

[0099] Example 2: As shown in FIG4b, the terminal autonomously determines the target power increase value

[0100] S421, the network side device determines whether the first condition is met, such as whether the IBE of the terminal when transmitting based on multiple antennas simultaneously is less than a first threshold or whether the EVM when transmitting based on multiple antennas simultaneously is less than a second threshold.

[0101] S422: When it is determined that the first condition is met, second indication information is sent to the terminal, where the second indication information is used to indicate the first condition.

[0102] S423: The terminal determines, based on the second indication information, that the lower limit of the target transmit power value needs to be increased, and then further determines the target power increase value.

[0103] S424: The terminal adjusts a lower limit of a target transmission power value of each beam when multiple antennas transmit simultaneously according to the determined target power increase value.

[0104] S425: The terminal determines a target transmission power value for each beam when performing simultaneous multi-antenna transmission based on the adjusted lower limit value.

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

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

[0107] FIG5 is a flow chart of a power control method 500 according to an exemplary embodiment of the present application. This method 500 may be, but is not limited to, executed by a network-side device, specifically hardware or software installed in the network-side device. In this embodiment, the method 500 may include at least the following steps.

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

[0109] Among them, the first indication information is used to indicate the target power increase value, and the target power increase value is used by the terminal to adjust the lower limit of the target transmission power value of each beam when multiple antennas are transmitted simultaneously. The target transmission power value is determined based on the maximum power fallback MPR relaxation value when multiple antennas are transmitted simultaneously.

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

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

[0112] In one implementation, the network-side device determines the target power boost value based on a 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 simultaneous transmission of 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.

[0113] In one implementation, the method also includes at least one of the following: when it is determined that the IBE based on simultaneous transmission of multiple antennas is less than a first threshold, the network side device obtains the target power boost value based on a second association relationship corresponding to the IBE, and the second association relationship is configured with an 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 area, a signal waveform, and a signal modulation method; when it is determined that the EVM based on simultaneous transmission of multiple antennas is less than a second threshold, the network side device obtains the target power boost value based on a third association relationship corresponding to the EVM, and the third association relationship is configured with an 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 area, a signal waveform, and a signal modulation method.

[0114] In one implementation, the target power boost value is less than or equal to an MPR relaxation value when the multiple antennas transmit simultaneously.

[0115] In one implementation, the method further includes: when the network side device determines that the first condition is met, executing the step of sending the first indication information to the terminal, or executing the step of sending the second indication information to the terminal, the second indication information is used to indicate the first condition; wherein the first condition includes at least one of the following: the IBE of the terminal when transmitting based on multiple antennas simultaneously is less than a first threshold; the EVM of the terminal when transmitting based on multiple antennas simultaneously 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, wherein the terminal capability information is used to indicate that the terminal supports the increase in transmission power when multiple antennas transmit simultaneously in the frequency range FR2; and executes the step of sending the first indication information to the terminal according to the terminal capability information.

[0117] The power control method provided in the embodiment of the present application can be executed by a power control device. In the embodiment of the present application, the power control device provided in the embodiment of the present application is described by taking the power control method executed by the power control device as an example.

[0118] As shown in Figure 6, it is a structural diagram of a power control device 600 provided in an embodiment of the present application. The device 600 includes: an acquisition module 610, used to obtain a target power increase value; an adjustment module 620, used to adjust the lower limit value of the target transmission power value according to the target power increase value; wherein, the target transmission power value is the transmission power value of each beam when the terminal performs simultaneous transmission of multiple antennas, and the target transmission power value is determined based on the maximum power backoff MPR relaxation value when multiple antennas are transmitted simultaneously.

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

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

[0121] In an optional implementation, obtaining the target power boost value includes: determining the target power boost value based on a first association relationship; wherein the first association relationship is configured with an association relationship between the candidate power boost value and the first object, and the first object includes at least one of the resource block RB area, signal waveform, signal modulation mode, in-band radiation power IBE, and error vector magnitude EVM.

[0122] In an optional implementation, the determining of the target power boost value based on 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 simultaneous transmission of 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.

[0123] In an optional implementation, the target power boost value is obtained, including at least one of the following: when it is determined that the IBE based on simultaneous transmission of multiple antennas is less than a first threshold, the target power boost value is obtained according to a second association relationship corresponding to the IBE, and the second association relationship is configured with an association relationship between the candidate power boost value and the second object, and the second object includes at least one of the RB area, the signal waveform, and the signal modulation method; when it is determined that the EVM based on simultaneous transmission of multiple antennas is less than a second threshold, the target power boost value is obtained according to a third association relationship corresponding to the EVM, and the third association relationship is configured with an association relationship between different candidate power boost values ​​and different third objects, and the third object includes at least one of the resource block RB area, the signal waveform, and the signal modulation method.

[0124] In an optional implementation, the acquisition module 610 is also used to: receive second indication information sent by the network side device; the adjustment module 620 is also used 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 IBE of the terminal when transmitting based on multiple antennas simultaneously is less than a first threshold; the EVM of the terminal when transmitting based on multiple antennas simultaneously is less than a second threshold.

[0125] In an optional implementation, the target power boost value is less than or equal to an MPR relaxation value when the multiple antennas transmit simultaneously.

[0126] In an optional implementation, the lower limit value P of the target transmit power value after adjustment is 下限 Determined according to the following formula: Among them, the P powerclass The minimum EIRP of the terminal specified for the preset power level, ΔPIBE ΔP is the increase in uplink power when the in-band radiation index is relaxed. sTxMP is the target power increase value, the MPR f，c，k is the maximum power back-off value, the ΔMPR sTxMPis the MPR relaxation value on each beam allowed when the terminal multi-antenna transmits in multiple directions simultaneously, T() is the tolerance when different power changes, and the A-MPR f，c，k The maximum power fallback value configured to meet the radiated power regulatory requirements, P-MPR f，c，k is the power back-off value used to meet electromagnetic radiation requirements, ΔMB P,n is the maximum power relaxation value allowed when the terminal supports multiple frequency bands, ΔT sTxMP It is the maximum power relaxation value allowed when the terminal's multiple antennas transmit in multiple directions simultaneously.

[0127] In an optional implementation, P 下限 ≤P UMAX,f,c,k ≤EIRP max , the P UMAX,f,c,k is the target transmit power of the terminal, the EIRP max is the maximum output power allowed by the regulatory agency.

[0128] In an optional implementation, the acquisition module is further used to send terminal capability information to the network side device; wherein the terminal capability information is used to indicate that the terminal supports the increase in transmission power when multiple antennas transmit simultaneously in the frequency range FR2.

[0129] The power control device 600 in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or other device other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and the other device can be a server, a network attached storage (NAS), etc., which is not specifically limited in the embodiment of the present application.

[0130] The power control device 600 provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 2 to 3 and achieve the same technical effects. To avoid repetition, they will not be described here.

[0131] As shown in Figure 7, it is a structural diagram of a power control device 700 provided in an embodiment of the present application. The device 700 includes: a transmission module 710, used to send a first indication information to the terminal; wherein, the first indication information is used to indicate a target power increase value, and the target power increase value is used by the terminal to adjust the lower limit value of the target transmission power value of each beam when multiple antennas are transmitted simultaneously, and the target transmission power value is determined based on the maximum power backoff MPR relaxation value when multiple antennas are transmitted simultaneously.

[0132] In an optional implementation, the network-side device is configured with at least one candidate power increase value, and the target power increase value is one of the at least one candidate power increase value.

[0133] In an optional implementation, the device 700 also includes: a first determination module, used to determine the target power boost value based on a first association relationship; wherein the first association relationship is configured with an association relationship between the candidate power boost value and the first object, and the first object includes at least one of the resource block RB area, signal waveform, signal modulation mode, in-band radiation power IBE, and error vector magnitude EVM.

[0134] In an optional implementation, the determining of the target power boost value based on 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 simultaneous transmission of 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.

[0135] In an optional implementation, the device 700 also includes a second determination module, which is used for at least one of the following: when it is determined that the IBE based on simultaneous transmission of multiple antennas is less than a first threshold, the target power boost value is obtained according to a second association relationship corresponding to the IBE, and the second association relationship is configured with an 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 area, a signal waveform, and a signal modulation method; when it is determined that the EVM based on simultaneous transmission of multiple antennas is less than a second threshold, the target power boost value is obtained according to a third association relationship corresponding to the EVM, and the third association relationship is configured with an 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 area, a signal waveform, and a signal modulation method.

[0136] In an optional implementation, the target power boost value is less than or equal to an MPR relaxation value when the multiple antennas transmit simultaneously.

[0137] In an optional implementation, the transmission module 710 is also used to execute the step of sending the first indication information to the terminal when it is determined that the first condition is met, or to execute the step of sending the 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 IBE of the terminal when transmitting based on multiple antennas simultaneously is less than a first threshold; the EVM of the terminal when transmitting based on multiple antennas simultaneously is less than a second threshold.

[0138] In an optional implementation, the transmission module 710 is also used to: receive terminal capability information sent by the terminal, wherein the terminal capability information is used to indicate that the terminal supports the increase in transmission power when multiple antennas transmit simultaneously in the frequency range FR2; and execute the step of sending the first indication information to the terminal according to the terminal capability information.

[0139] The power control device 700 in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a network-side device. For example, the network-side device can include, but is not limited to, the types of network-side devices 12 listed above, and is not specifically limited in the embodiments of the present application.

[0140] The power control device 700 provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 5 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0141] As shown in Figure 8, an embodiment of the present application further provides a communication device 800, including a processor 801 and a memory 802. The memory 802 stores a program or instruction that can be run on the processor 801. For example, when the communication device 800 is a terminal, the program or instruction, when executed by the processor 801, implements the various steps of the above-mentioned power control method embodiment and can achieve the same technical effect. When the communication device 800 is a network-side device, the program or instruction, when executed by the processor 801, implements the various steps of the above-mentioned power control method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0142] The present application also provides a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in Figure 2 or Figure 3. This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment can be applied to this terminal embodiment and achieve the same technical effect. Specifically, Figure 9 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0143] The terminal 900 includes but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909 and at least some of the components of the processor 910.

[0144] Those skilled in the art will appreciate that the terminal 900 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 910 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG9 does not limit the terminal. The terminal may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0145] It should be understood that in an embodiment of the present application, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042, and the graphics processor 9041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 907 includes a touch panel 9071 and at least one of other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include two parts: a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0146] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 901 may transmit the data to the processor 910 for processing. Furthermore, the RF unit 901 may send uplink data to the network-side device. Typically, the RF unit 901 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0147] The memory 909 can be used to store software programs or instructions and various data. The memory 909 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 909 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 909 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0148] Processor 910 may include one or more processing units. Optionally, processor 910 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 910.

[0149] Among them, the processor 910 is used to obtain a target power increase value; and adjust the lower limit value of the target transmit power value according to the target power increase value; wherein, the target transmit power value is the transmit power value of each beam when the terminal performs simultaneous transmission of multiple antennas, and the target transmit power value is determined based on the maximum power backoff MPR relaxation value when multiple antennas are transmitted simultaneously.

[0150] In an optional implementation, obtaining the target power increase value includes: receiving first indication information sent by a network-side device; wherein the first indication information is used to indicate the target power increase value.

[0151] In an optional implementation manner, at least one candidate power increase value is pre-configured in the terminal, and the target power increase value is one of the at least one candidate power increase value.

[0152] In an optional implementation, obtaining the target power boost value includes: determining the target power boost value based on a first association relationship; wherein the first association relationship is configured with an association relationship between the candidate power boost value and the first object, and the first object includes at least one of the resource block RB area, signal waveform, signal modulation mode, in-band radiation power IBE, and error vector magnitude EVM.

[0153] In an optional implementation, the determining of the target power boost value based on 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 simultaneous transmission of 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.

[0154] In an optional implementation, the target power boost value is obtained, including at least one of the following: when it is determined that the IBE based on simultaneous transmission of multiple antennas is less than a first threshold, the target power boost value is obtained according to a second association relationship corresponding to the IBE, and the second association relationship is configured with an association relationship between the candidate power boost value and the second object, and the second object includes at least one of the RB area, the signal waveform, and the signal modulation method; when it is determined that the EVM based on simultaneous transmission of multiple antennas is less than a second threshold, the target power boost value is obtained according to a third association relationship corresponding to the EVM, and the third association relationship is configured with an association relationship between different candidate power boost values ​​and different third objects, and the third object includes at least one of the resource block RB area, the signal waveform, and the signal modulation method.

[0155] In an optional implementation, the radio frequency unit 901 is used to receive a second indication information sent by a network side device; the processor 9100 is also used 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 IBE of the terminal when transmitting based on multiple antennas simultaneously is less than a first threshold; the EVM of the terminal when transmitting based on multiple antennas simultaneously is less than a second threshold.

[0156] In an optional implementation, the target power boost value is less than or equal to an MPR relaxation value when the multiple antennas transmit simultaneously.

[0157] In an optional implementation, the lower limit value P of the target transmit power value after adjustment is 下限 Determined according to the following formula:

[0158] Among them, the P powerclass The minimum EIRP of the terminal specified for the preset power level, the ΔP IBE ΔP is the increase in uplink power when the in-band radiation index is relaxed. 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 on each beam allowed when the terminal multi-antenna transmits in multiple directions simultaneously, T() is the tolerance when different power changes, and the A-MPR f，c，k The maximum power fallback value configured to meet the radiated power regulatory requirements, P-MPR f，c，k is the power back-off value used to meet electromagnetic radiation requirements, ΔMB P,n is the maximum power relaxation value allowed when the terminal supports multiple frequency bands, ΔT sTxMP It is the maximum power relaxation value allowed when the terminal's multiple antennas transmit in multiple directions simultaneously.

[0159] In an optional implementation, P 下限 ≤P UMAX,f,c,k ≤EIRP max , the P UMAX,f,c,k is the target transmit power of the terminal, the EIRP max is the maximum output power allowed by the regulatory agency.

[0160] In an optional implementation, the acquisition module is further used to send terminal capability information to the network side device; wherein the terminal capability information is used to indicate that the terminal supports the increase in transmission power when multiple antennas transmit simultaneously in the frequency range FR2.

[0161] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of method embodiments 200-300, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0162] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG5 . This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0163] Specifically, an embodiment of the present application also provides a network-side device. As shown in Figure 10, the network-side device 1000 includes: an antenna 1001, a radio frequency device 1002, a baseband device 1003, a processor 1004, and a memory 1005. Antenna 1001 is connected to radio frequency device 1002. In the uplink direction, radio frequency device 1002 receives information via antenna 1001 and sends the received information to baseband device 1003 for processing. In the downlink direction, baseband device 1003 processes the information to be transmitted and sends it to radio frequency device 1002. Radio frequency device 1002 processes the received information and sends it through antenna 1001.

[0164] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 1003 , which includes a baseband processor.

[0165] The baseband device 1003 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 10, one of which is, for example, a baseband processor, which is connected to the memory 1005 through a bus interface to call the program in the memory 1005 and execute the network side device operations shown in the above method embodiment.

[0166] The network side device may further include a network interface 1006, which is, for example, a Common Public Radio Interface (CPRI).

[0167] Specifically, the network side device 1000 of the embodiment of the present application also includes: instructions or programs stored in the memory 1005 and executable on the processor 1004. The processor 1004 calls the instructions or programs in the memory 1005 to execute the method of execution of each module shown in Figure 7 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0168] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned power control method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0169] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0170] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned power control method embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0171] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0172] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned power control method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0173] An embodiment of the present application also provides a wireless communication system, including: a terminal and a network side device, wherein the terminal can be used to implement the various processes of the above-mentioned power control method embodiments 200-300, and the network side device can be used to implement the various processes of the above-mentioned power control method embodiment 500, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0174] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0175] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0176] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

[0177] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A power control method, comprising: The terminal obtains a target power increase value; Adjusting the lower limit of the target transmit power value according to the target power increase value; 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 maximum power backoff MPR relaxation value when multiple antennas perform simultaneous transmission.

2. The method of claim 1, wherein: The terminal obtains a target power increase value, including: The terminal receives first indication information sent by the network side device; The first indication information is used to indicate the target power increase value.

3. The method of claim 1, wherein: The terminal obtains a target power increase value, including: The terminal determines the target power increase value according to the first association relationship; Among them, the first association relationship is configured with an association relationship between the candidate power boost value and the first object, and the first object includes at least one of a resource block RB area, a signal waveform, a signal modulation method, an in-band radiation power IBE, and an error vector magnitude EVM.

4. The method of claim 3, wherein: The terminal determines the target power increase 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 simultaneous transmission by multiple antennas is less than a first threshold, determining a 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, a candidate power increase value having the first association relationship with the EVM is determined as the target power increase value.

5. The method of claim 1, wherein: The terminal obtains a target power increase value, including at least one of the following: When it is determined that the IBE based on simultaneous transmission of multiple antennas is less than the first threshold, the terminal obtains 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 a candidate power boost value and a second object, and the second object includes at least one of an RB area, a signal waveform, and a signal modulation mode; When it is determined that the EVM based on simultaneous transmission by multiple antennas is less than a second threshold, the terminal obtains the target power boost value based on a third association relationship corresponding to the EVM, and the third association relationship is configured with an 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 area, a signal waveform, and a signal modulation method.

6. The method according to any one of claims 1 to 5, wherein: The method further comprises: Receiving second indication information sent by the network side device; According to the second indication information, executing the step of obtaining the target power increase value; The second indication information is used to indicate 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.

7. The method according to any one of claims 1 to 6, wherein: The lower limit value P of the adjusted target transmission power value 下限 Determined according to the following formula: Among them, the P powerclass The minimum effective isotropic radiated power EIRP of the terminal specified for the preset power level, the ΔP IBE ΔP is the increase in uplink power when the in-band radiation index is relaxed. sTxMP is the target power increase value, the MPR f，c，k is the maximum power cut-off value, the ΔMPR sTxMP is the MPR relaxation value allowed on each beam when the terminal multi-antenna transmits in multiple directions simultaneously, T() is the tolerance when different powers change, and the A-MPR f，c，k The maximum power fallback value configured to meet the radiated power regulatory requirements, P-MPR f，c，k is the power back-off value used to meet the electromagnetic radiation requirements, ΔMB P,n It is the maximum power relaxation value allowed when the terminal supports multiple frequency bands. ΔTsTxMP It is the maximum power relaxation value allowed when the terminal has multiple antennas transmitting in multiple directions simultaneously.

8. The method of claim 7, wherein: P 下限 ≤P UMAX,f,c,k ≤EIRP max , the P UMAX,f,c,k is the target transmit power of the terminal, the EIRP max is the maximum output power allowed by the regulatory agency.

9. The method according to any one of claims 1 to 8, wherein: The method further comprises: The terminal sends terminal capability information to the network side device; The terminal capability information is used to indicate that the terminal supports a transmission power increase when multiple antennas transmit simultaneously in the frequency range FR2.

10. A power control method, comprising: The network side device sends first indication information to the terminal; Among them, the first indication information is used to indicate the target power increase value, and the target power increase value is used by the terminal to adjust the lower limit of the target transmission power value of each beam when multiple antennas are transmitted simultaneously, and the target transmission power value is determined based on the maximum power backoff MPR relaxation value when multiple antennas are transmitted simultaneously.

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

12. The method of claim 11, wherein: The network-side device determines the target power increase 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 simultaneous transmission by multiple antennas is less than a first threshold, determining a 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, a candidate power increase value having the first association relationship with the EVM is determined as the target power increase value.

13. The method of claim 10, wherein: The method further comprises at least one of the following: When it is determined that the IBE based on simultaneous transmission by 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, where the second association relationship is configured with association relationships between different candidate power boost values ​​and different second objects, and the second object includes at least one of a resource block RB area, a signal waveform, and a signal modulation mode; When it is determined that the EVM based on simultaneous transmission by multiple antennas is less than a second threshold, the network side device obtains the target power boost value based on a third association relationship corresponding to the EVM, and the third association relationship is configured with an 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 area, a signal waveform, and a signal modulation method.

14. The method according to any one of claims 10 to 11, wherein: The method further comprises: When determining that the first condition is met, the network side device executes the step of sending the first indication information to the terminal, or executes the step of sending the second indication information to the terminal, where the second indication information is used to indicate the first condition; 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.

15. The method according to any one of claims 10 to 14, wherein: The method further comprises: The network side device receives the terminal capability information sent by the terminal, wherein the terminal capability information is used to indicate that the terminal supports a transmission power increase when multiple antennas transmit simultaneously in the frequency range FR2; The step of sending the first indication information to the terminal is performed according to the terminal capability information.

16. A power control device, comprising: An acquisition module is used to obtain a target power increase value; An adjustment module, configured to adjust a lower limit of a target transmit power value according to the target power increase value; 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 maximum power backoff MPR relaxation value when multiple antennas perform simultaneous transmission.

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

18. The device of claim 16, wherein: The acquisition module is also used to: receive second indication information sent by the network side device; The adjustment module is further used to execute the step of obtaining the target power increase value according to the second indication information; The second indication information is used to indicate 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.

19. The device according to any one of claims 16 to 18, wherein: The acquisition module is also used to send the terminal capability information to the network side device; The terminal capability information is used to indicate that the terminal supports a transmission power increase when multiple antennas transmit simultaneously in the frequency range FR2.

20. A power control device, comprising: A transmission module, used for sending first indication information to a terminal; Among them, the first indication information is used to indicate the target power increase value, and the target power increase value is used by the terminal to adjust the lower limit of the target transmission power value of each beam when multiple antennas are transmitted simultaneously, and the target transmission power value is determined based on the maximum power backoff MPR relaxation value when multiple antennas are transmitted simultaneously.

21. The device of claim 20, wherein: The transmission module is further configured to, when it is determined that the first condition is met, execute the step of sending the first indication information to the terminal, or execute the step of sending the second indication information to the terminal, where the second indication information is used to indicate the first condition; 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.

22. The device according to claim 20 or 21, wherein: The transmission module is also used to: receive terminal capability information sent by the terminal, wherein the terminal capability information is used to indicate that the terminal supports the increase in transmission power when multiple antennas transmit simultaneously in the 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 comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 1 to 9 are implemented.

24. A network side device, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 10 to 15 are implemented.

25. A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the method according to any one of claims 1 to 9, or implements the steps of the method according to any one of claims 10 to 15.

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