Method for controlling uplink transmit power of terminal, terminal, readable storage medium, and device

Abstract

The present application relates to the technical field of wireless communications, and provides a method for controlling uplink transmit power of a terminal, a terminal, a computer-readable storage medium, and an electronic device. The method comprises: reporting terminal capability information to a network side device, wherein the terminal capability information comprises that a terminal supports determining a maximum power reduction (MPR) value on the basis of an extended terminal bandwidth. The method in the present application can covert some OuterRB allocations into InnerRB allocations, so as to increase a probability of allocating the InnerRB allocation to the terminal, thereby effectively reducing an MPR value and improving uplink transmit power of the terminal.

Description

Terminal uplink transmit power control method, terminal, readable storage medium, device

[0001] This application claims priority to Chinese Patent Application No. 2025103876824, filed on March 28, 2025, entitled “Terminal Uplink Transmission Power Control Method, Terminal, Readable Storage Medium, Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of wireless communication technology, and in particular to a terminal uplink transmit power control method, a terminal, a computer-readable storage medium, and an electronic device. Background Technology

[0003] High-power terminals are key to improving uplink coverage in 5G (5th Generation Mobile Communication Technology) systems. While increasing uplink transmit power helps enhance UE (User Equipment) access and system coverage, several limitations must be balanced, such as human radiation safety, power amplifier nonlinear distortion, and adjacent channel interference. To address this, 3GPP introduced the MPR (Maximum Power Reduction) scheme, which appropriately reduces uplink transmit power to ensure the power amplifier operates in its linear region and reduces adjacent channel interference.

[0004] In related technologies, MPR (Maximum Power Reduction) is generally reduced by introducing DFT-s-OFDM waveforms. However, the above solutions have limited effectiveness and are limited in application scenarios. Meanwhile, with the research and application of high-power terminals, the main bottleneck limiting further MPR reduction has become how to reduce the impact of ACLR (Adjacent Channel Leakage Ratio) / SEM (Spectrum Emission Mask) on adjacent channels.

[0005] Therefore, there is an urgent need in this field to develop a new method for controlling the uplink transmission power of terminals.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application. Summary of the Invention

[0007] The purpose of this application is to provide a terminal uplink transmit power control method, a terminal, a computer-readable storage medium, and an electronic device, thereby overcoming, to at least a certain extent, the technical problem of being unable to effectively reduce MPR due to limitations in related technologies.

[0008] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0009] According to a first aspect of this application, a terminal uplink transmit power control method is provided, comprising:

[0010] The terminal capability information is reported to the network-side device; the terminal capability information includes the terminal's ability to determine the maximum power reduction value based on the extended terminal bandwidth.

[0011] In some embodiments of this application, reporting terminal capability information to the network-side device includes:

[0012] The terminal capability information is reported to the network-side device based on the Radio Resource Control Layer protocol.

[0013] In some embodiments of this application, after reporting terminal capability information to the network-side device, the method further includes:

[0014] Receive the instruction information sent by the network-side device, and determine the terminal bandwidth extension value based on the instruction information.

[0015] In some embodiments of this application, receiving the indication information sent by the network-side device includes:

[0016] Receive the instruction information issued by the network-side device based on the radio resource control layer.

[0017] In some embodiments of this application, the indication information includes first indication information;

[0018] The first indication information is used to indicate the terminal bandwidth extension value, which includes an upper limit extension value and a lower limit extension value for the terminal bandwidth;

[0019] The terminal bandwidth extension value includes variable values ​​defined by the network-side device.

[0020] In some embodiments of this application, the indication information includes second indication information;

[0021] The second indication information is used to indicate the terminal bandwidth extension value, which includes an upper limit extension value and a lower limit extension value for the terminal bandwidth;

[0022] The terminal bandwidth extension value includes a fixed value defined by the network-side device.

[0023] In some embodiments of this application, the indication information includes third indication information;

[0024] The third indication information is used to indicate that the terminal bandwidth is symmetrically expanded based on the terminal bandwidth expansion value;

[0025] The terminal bandwidth extension value includes variable values ​​defined by the network-side device.

[0026] In some embodiments of this application, the indication information includes fourth indication information;

[0027] The fourth indication information is used to indicate that the terminal bandwidth is symmetrically expanded based on the terminal bandwidth expansion value;

[0028] The terminal bandwidth extension value includes a fixed value defined by the network-side device.

[0029] In some embodiments of this application, the fixed value is obtained by adjusting the terminal bandwidth based on a preset scaling factor;

[0030] The preset scaling factor is greater than or equal to 0 and less than or equal to 0.5.

[0031] In some embodiments of this application, the method further includes:

[0032] The maximum power reduction value is lower than the reference maximum power reduction value.

[0033] In some embodiments of this application, the method further includes:

[0034] The terminal bandwidth extension value is used to influence the determination strategy of internal resource block allocation, so as to expand the range of internal resource block allocation of the terminal.

[0035] According to a second aspect of this application, a terminal is provided, comprising:

[0036] The capability reporting module is used to report terminal capability information to network-side devices;

[0037] The terminal capability information includes the terminal's ability to determine the maximum power reduction value based on the extended terminal bandwidth.

[0038] According to a third aspect of this application, a computer-readable storage medium is provided, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the terminal uplink transmission power control method described in the first aspect above.

[0039] According to a fourth aspect of this application, an electronic device is provided, comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the terminal uplink transmission power control method described in the first aspect by executing the executable instructions.

[0040] As can be seen from the above technical solutions, the terminal uplink transmission power control method, terminal, computer-readable storage medium, and electronic device in the exemplary embodiments of this application have at least the following advantages and positive effects:

[0041] In some embodiments of this application, the technical solutions provided include reporting terminal capability information to the network-side device. This terminal capability information includes the terminal's ability to determine the maximum power reduction value based on the extended terminal bandwidth. This enables the calculation of N only when determining the RB allocation, without increasing the actual value of the UE's uplink channel bandwidth configuration. RB or UE CBW Virtual expansion is performed to convert some OuterRB allocations into InnerRB allocations, increasing the probability of the terminal being allocated an InnerRB allocation. Since the MPR value of InnerRB allocations is generally lower than that of OuterRB allocations, the MPR value can be effectively reduced, thereby improving the uplink transmission power of the terminal.

[0042] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application. Attached Figure Description

[0043] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0044] Figure 1 illustrates the UE uplink configuration channel bandwidth (N) in related technologies. RB ) and UE actual allocated bandwidth (UE LCRB A diagram illustrating the impact of the relationship between InnerRB allocation and OuterRB allocation on their respective ranges;

[0045] Figure 2 shows a schematic diagram illustrating the application of the n1 and n78 frequency bands in the relevant technologies;

[0046] Figure 3 illustrates the extended UE in some embodiments of this application.CBW Frequency band diagram;

[0047] Figure 4 illustrates some embodiments of this application regarding N. RB A diagram illustrating the change in the range of InnerRB allocation after unilateral virtual expansion;

[0048] Figure 5 shows a flowchart of the terminal uplink transmission power control method in some embodiments of this application;

[0049] Figure 6 shows a schematic diagram of the terminal structure in some embodiments of this application;

[0050] Figure 7 shows a schematic diagram of the structure of an electronic device in some embodiments of this application. Detailed Implementation

[0051] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a full understanding of the embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced with one or more of the specific details omitted, or other methods, components, apparatus, steps, etc., can be employed. In other instances, well-known technical solutions are not shown or described in detail to avoid obscuring various aspects of this application.

[0052] The terms “a,” “an,” “the,” and “the” are used in this specification to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first” and “second” are used only as markings and are not a limitation on the number of objects.

[0053] Furthermore, the accompanying drawings are merely illustrative of this application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0054] First, the communication terms used in this application will be explained:

[0055] MPR stands for Maximum Power Reduction. In wireless communication systems, MPR refers to a mechanism that limits or reduces the maximum transmit power to meet specific transmit power requirements or reduce interference with other channels. It is primarily used in LTE (Long Term Evolution) and other modern wireless communication standards. By reducing the maximum transmit power, device power consumption can be reduced, and excessive interference to adjacent channels can be prevented.

[0056] ACLR: Adjacent Channel Leakage Ratio. ACLR is a metric that measures the amount of signal leakage from a communication system to adjacent channels outside its operating frequency band. It represents the proportion of energy from the primary channel signal leaking into adjacent channels. ACLR is commonly used to evaluate the performance of radio frequency (RF) transmitters, especially in frequency division multiple access (FDMA) systems. A high ACLR value means less signal leakage to adjacent channels, thus reducing interference to other users.

[0057] SEM: Spectrum Emission Mask. SEM is a specification that defines the maximum permissible power level of a transmitted signal across different frequency ranges. It specifies the power distribution of the signal in the main channel and adjacent channels. SEM is used to ensure that transmitted signals comply with regulatory agencies (such as FCC, ETSI, etc.) and avoid unnecessary interference to other frequency bands. It is an important reference standard in wireless communication system design.

[0058] Inner RBs refer to resource blocks located in the central part of the available spectrum. These resource blocks typically have better channel conditions and are less affected by cell edge effects. They are more suitable for efficient data transmission because the signal quality is better and there is less interference.

[0059] Outer RBs refer to resource blocks located near the ends of the spectrum. Because they are closer to the frequency band boundaries, they may be more susceptible to interference or signal attenuation. Therefore, these resource blocks are sometimes used as guard bands or specifically for certain types of communication needs, such as control channels or other traffic requiring special handling.

[0060] UE LCRBTransmission bandwidth, which represents the length of a contiguous resource block allocation expressed in units of resource blocks, is the actual transmission bandwidth of the UE. LCRB represents the length of bandwidth allocated to the UE in a contiguous resource block (RB), expressed in units of resource blocks. It describes the number of resource blocks that the UE can use within a continuous spectrum range, which directly affects its data transmission rate and spectrum utilization. A larger LCRB value usually means a higher data transmission capability.

[0061] N RB Transmission bandwidth configuration, expressed in units of resource blocks, UE transmission bandwidth configuration, N RB This represents the UE's transmission bandwidth configuration, expressed in resource blocks (RBs). It defines the number of RBs that the UE can use within the entire system bandwidth. N RB Used to configure the UE's operating bandwidth, ensuring it can transmit data effectively within a specified spectrum range; different N... RB The configuration can be adjusted according to network requirements and UE capabilities;

[0062] UE CBW UE Channel bandwidth, UE CBW This indicates the maximum channel bandwidth supported by the UE. CBW This determines the UE's communication capabilities in different frequency bands; larger UEs... CBW This means that the UE can transmit data over a wider spectrum, thereby increasing data rate and system capacity.

[0063] As standards evolve, the pursuit of higher terminal transmission power remains constant, and the main focus of discussion is on how to reduce the power back-off amount when performing MPR and ensure DC power consumption.

[0064] Currently, the mainstream approach is to introduce a DFT-s-OFDM waveform because the DFT waveform has a lower PAPR (Peak-to-Average Power Ratio), a smaller range of output power fluctuation, and therefore a larger linear amplification region, requiring less power to back off. Furthermore, Rel-18 superimposes FDSS (Frequency Domain Spectrum Shaping) on ​​top of the DFT-s-OFDM, further reducing PAPR through smoother frequency domain filtering.

[0065] However, DFT-s-OFDM is not suitable for all scenarios. It also has disadvantages such as large bandwidth consumption and high bit error rate at low SINR. At the same time, with the technological breakthroughs in RF modules, more refined process levels and hardware designs have been able to improve the nonlinear distortion of power amplifiers. The main bottleneck limiting further reduction of MPR has become the impact of excessively high ACLR / SEM on adjacent channels, and this problem cannot be improved by changing the waveform.

[0066] Referring to Table 1, which shows the numerical range of MPR values ​​defined in the 3GPP standard, it can be seen that for both DFT-s-OFDM and traditional CP-OFDM waveforms, the MPR values ​​for outer RB allocations are greater than or equal to the MPR values ​​for inner RB allocations. Therefore, if it can be ensured that the actual allocated bandwidth of the UE during each uplink transmission belongs to the inner RB allocation as much as possible, the MPR can be significantly reduced.

[0067] Table 1

[0068] However, given a fixed channel bandwidth, forcibly limiting the actual bandwidth allocated to the UE is problematic. LCRB Allocating InnerRBs would significantly reduce the number of selectable BWPs (Bandwidth Parts, each BWP defining a specific spectrum resource segment) for the UE and decrease throughput; therefore, this approach is not feasible.

[0069] Through in-depth research, the inventors discovered that existing standards, when distinguishing between InnerRB allocation and OuterRB allocation, only define N. RBThe relationship with InnerRB allocation is that RBs other than InnerRB allocation are called OuterRB allocations. Referring to Figure 1, Figure 1 shows the UE uplink configuration channel bandwidth (N) in related technologies. RB ) and UE actual allocated bandwidth (UE LCRB A diagram illustrating the impact of the relationship between N and OuterRB allocation on the range of InnerRB allocation / OuterRB allocation. Triangle OAB represents N. RB The range of the inner RB allocation is represented by triangle OAC, and the range of the outer RB allocation is represented by quadrilateral OCAB. As shown in Figure 1, the range of the inner RB allocation is related to N. RB There is a positive correlation, i.e., N RB The larger the range, the larger the range of InnerRB allocation, and the maximum UE during InnerRB allocation. LCRB for

[0070] Referring to Figure 2, which illustrates the allocation of frequency bands n1 and n78 in related technologies, it can be seen that band n1 has a shared bandwidth of 45MHz, band n78 has a shared bandwidth of 300MHz, and the 200MHz band on the right is used for satellite communication, with no IMT (International Mobile Telecommunications) services. Therefore, according to the traditional RB allocation rules, these two frequency bands will only have UEs with a maximum InnerRB allocation of 22.5MHz and 150MHz respectively. LCRB It is difficult to simultaneously meet the MPR reduction and high bandwidth requirements of MU-MIMO (Multi-User Multiple Input Multiple Output).

[0071] Therefore, in N RB When there is sufficient frequency domain space on both sides, it is possible to calculate the UE. LCRB When allocating N using the RB method RB Virtual expansion is performed to increase the range of InnerRB allocation, allowing high-bandwidth UEs to use the MPR value of InnerRB allocation, thereby improving the uplink power of the terminal.

[0072] Based on this, this application proposes a virtual bandwidth expansion scheme, which configures N without increasing the uplink channel bandwidth of the UE.RB Under the premise that N is only considered when calculating the RB allocation. RB Virtual expansion (expanding the total number of resource blocks within the frequency band) is performed, and this feature is configured on the network side and executed on the UE side. The capability reporting and terminal bandwidth expansion indication methods involved in this application can significantly expand the range of InnerRB allocation allocated to the UE, enabling more high-bandwidth scenarios to use the MPR value of the InnerRB allocation, thereby improving the terminal's uplink transmission power while ensuring throughput. Furthermore, this scheme is decoupled from the transmission waveform (it does not depend on DFT-s-OFDM and CP-OFDM waveform implementations), but it is equally applicable to DFT-s-OFDM and CP-OFDM waveforms.

[0073] The principle of reducing MPR in this application will be explained below with reference to Figures 3 and 4. Referring to Figure 3, Figure 3 shows the extended UE in the embodiment of this application. CBW The frequency band diagram is shown in Figure 3. UE CBW The 3400MHz-3500MHz band was extended on one side, and further extended to 3400MHz-3520MHz. This was applied to the UE. CBW After performing unilateral expansion, N RB The scope will also expand accordingly (i.e., for UEs) CBW The extension is equivalent to N RB (Extended). Thus, referring to FIG4, FIG4 illustrates the embodiment of this application regarding N. RB Figure 4 illustrates the range change of InnerRB allocation after unilateral virtual expansion. As shown in Figure 4, N... RB The range of triangle OAB is virtually expanded to triangle OA'B', thus, according to N as defined in the standard RB The relationship with InnerRB allocation shows that the range of InnerRB allocation expands from triangle OAC to triangle OAC'. It should be noted that this involves a bilateral symmetrical expansion of the terminal bandwidth, and the terminal bandwidth expansion value is equal to... (or equal to) When N is in the range of InnerRB allocation, the range will cover the entire triangle OAB. RB The entire innerRB range will be covered by the innerRB allocation, i.e., N RB It only contains InnerRB allocation.

[0074] Therefore, this application essentially changes the RB allocation method by expanding the upper and / or lower bounds of the terminal bandwidth, thereby converting some OuterRB allocations into InnerRB allocations, thus reducing MPR and increasing the terminal uplink transmission power.

[0075] In some embodiments of this application, a terminal uplink transmission power control method is first provided, which at least to some extent overcomes the deficiency in related technologies that cannot effectively reduce MPR.

[0076] Figure 5 shows a flowchart of a terminal uplink transmission power control method in some embodiments of this application. The executing entity of the terminal uplink transmission power control method can be a terminal.

[0077] Referring to Figure 5, the terminal uplink transmit power control method according to some embodiments of this application includes the following steps:

[0078] Step S510: Report terminal capability information to the network-side device; the terminal capability information includes the terminal's ability to determine the maximum power reduction value based on the extended terminal bandwidth.

[0079] In the technical solution provided by the embodiment shown in Figure 5, by reporting terminal capability information to the network-side device, the terminal capability information includes the terminal's ability to determine the maximum power reduction value based on the extended terminal bandwidth. This enables the calculation of N only when calculating the RB allocation, without increasing the actual value of the UE's uplink channel bandwidth configuration. RB or UE CBW Virtual expansion is performed to convert some OuterRB allocations into InnerRB allocations, increasing the probability of the terminal being allocated an InnerRB allocation. Since the MPR value of InnerRB allocations is generally lower than that of OuterRB allocations, the MPR value can be effectively reduced, thereby improving the uplink transmission power of the terminal.

[0080] The following is a detailed explanation of the specific implementation process of each step in Figure 5:

[0081] In step S510, terminal capability information is reported to the network-side device; the terminal capability information includes the terminal's ability to determine the maximum power reduction value based on the extended terminal bandwidth.

[0082] In this step, the terminal can report terminal capability information (capability information can be defined as MPRReduction-CBWextension-r19) to the network-side device. This terminal capability information can be whether the terminal supports determining the maximum power reduction value (MPR) based on the extended terminal bandwidth. That is, the terminal capability information can include two cases: one is that the terminal supports determining the MPR based on the extended terminal bandwidth, and the other is that the terminal does not support determining the MPR based on the extended terminal bandwidth.

[0083] In this context, network-side equipment refers to devices located on one side of the network infrastructure in a communication network. These devices are responsible for processing, managing, and transmitting data, and are crucial for ensuring the normal operation of the network, improving data transmission efficiency, and guaranteeing service quality. For example, network-side equipment can be base stations, core network equipment (e.g., mobility management entities, serving gateways, packet data network gateways), etc., and can be configured according to actual needs; this application does not impose any special limitations on this. The following embodiments use base stations as an example of network-side equipment for illustration.

[0084] For example, the terminal can report terminal capability information (MPRReduction-CBWextension-r19) to the network-side device based on the Radio Resource Control (RRC) UE capability transfer procedure.

[0085] After reporting terminal capability information to the network-side device, the terminal can receive instruction information issued by the network-side device and determine the terminal bandwidth extension value based on the instruction information.

[0086] For example, a network-side device can send instruction information to a terminal based on the Radio Resource Control (RRC) protocol to instruct the terminal on how to perform the capability.

[0087] Specifically, for cases where the terminal does not support determining the maximum power reduction value based on the extended terminal bandwidth, for example, the base station may not send an indication message to the terminal, or it may send an indication message to the terminal to indicate that the terminal bandwidth extension is not performed, such as an indication message indicating that the terminal extension value is 0. This can be set according to the actual situation, and this application does not make any special limitations on this.

[0088] For cases where the terminal supports determining the maximum power reduction value (MPR) based on the extended terminal bandwidth, the base station can determine N. RB If there is sufficient expansion space on both sides of the bandwidth, the terminal bandwidth expansion value can be sent to the terminal.

[0089] Furthermore, after receiving the terminal bandwidth extension value, the terminal can calculate the maximum power reduction value based on the terminal bandwidth extension value, thereby making the calculated maximum power reduction value lower than the reference maximum power reduction value, where the reference maximum power reduction value is the MPR calculated based on the actual terminal bandwidth.

[0090] Specifically, the base station can indicate the aforementioned terminal bandwidth extension value based on the following four methods.

[0091] In a first optional implementation, this application supports asymmetric expansion of terminal bandwidth based on a custom variable value. Specifically, the network-side device can send a first indication message to the terminal, which is used to indicate the aforementioned terminal bandwidth expansion value. The terminal bandwidth expansion value may include two fields, which are used to indicate the upper limit expansion value (which can be defined as CBW-extension-high-r19) and the lower limit expansion value (which can be defined as CBW-extension-low-r19) of the terminal bandwidth, respectively.

[0092] The upper bound extension value can be a variable value defined by the network-side device, and the lower bound extension value can also be a variable value defined by the network-side device. Furthermore, the extension value on either side can be 0.

[0093] Furthermore, given that the terminal bandwidth can be achieved using the UE CBW Or N RB Therefore, the unit of the aforementioned terminal bandwidth extension value can be MHz or RB number, which can be set according to the actual situation. This application does not impose any special restrictions on this.

[0094] It should be noted that if the terminal bandwidth extension value is not 0 and the unit is MHz, then according to the standard, it must be one of the following values: {3,5,10,15,20,25,30,35,40,45,50,60,70,80,90,100}.

[0095] In a second alternative implementation, this application supports asymmetric extension of terminal bandwidth based on a fixed value. Specifically, the network-side device can send a second indication message to the terminal, which is used to indicate the terminal bandwidth extension value. The terminal bandwidth extension value can include two fields, which are used to indicate the upper limit extension value (which can be defined as CBW-extension-high-r19) and the lower limit extension value (which can be defined as CBW-extension-low-r19) of the terminal bandwidth, respectively.

[0096] The upper bound extension value can be a fixed value defined by the network-side device according to a preset scaling factor, and the lower bound extension value can also be a fixed value defined by the network-side device according to a preset scaling factor. Furthermore, the extension value on either side can be 0.

[0097] The above fixed value is obtained by adjusting the terminal bandwidth based on a preset scaling factor. For example, the above fixed value can be calculated based on the following formula 1 or formula 2: Fixed value = x * UE CBW Formula 1 Fixed value = x * N RB Formula 2

[0098] Where x represents the aforementioned preset scaling factor, 0≤x≤0.5.

[0099] In a third alternative implementation, this application supports symmetrical expansion of terminal bandwidth based on a custom variable value (i.e., the upper bound expansion value equals the lower bound expansion value). Specifically, the network-side device can send a third indication message to the terminal, which is used to indicate symmetrical expansion of the terminal bandwidth based on the terminal bandwidth expansion value. Since the upper bound expansion value and the lower bound expansion value are equal, the terminal bandwidth expansion value can include only one field.

[0100] The aforementioned terminal bandwidth extension value can be a variable value defined by the network-side device. Given that the terminal bandwidth can be adopted by the UE... CBW Or N RB Therefore, the unit of the aforementioned terminal bandwidth extension value can be MHz or RB number, which can be set according to the actual situation. This application does not impose any special restrictions on this.

[0101] It should be noted that if the terminal bandwidth extension value is not 0 and the unit is MHz, then according to the standard, it must be one of the following values: {3,5,10,15,20,25,30,35,40,45,50,60,70,80,90,100}.

[0102] In a fourth optional implementation, this application supports symmetrical expansion of terminal bandwidth based on a fixed value. Specifically, the network-side device can send a fourth indication message to the terminal, which instructs the terminal bandwidth to be symmetrically expanded based on the terminal bandwidth expansion value. Since the upper and lower bound expansion values ​​are equal, the terminal bandwidth expansion value can include only one field.

[0103] The aforementioned terminal bandwidth extension value can be a fixed value defined by the network-side device based on a preset scaling factor. This fixed value is obtained by adjusting the terminal bandwidth based on the preset scaling factor. For example, the fixed value can be calculated with reference to Formula 1 or Formula 2, which will not be elaborated here.

[0104] It should be noted that the terminal bandwidth is symmetrically extended on both sides, and the aforementioned preset scaling factor is equal to... At that time, that is (or When this happens, all RB allocation methods will become inner RB allocation, and the terminal will use the MPR value of inner RB allocation when calculating MPR.

[0105] Based on the above technical solutions, some embodiments of this application have at least the following technical effects:

[0106] First, a signaling interaction process between the UE and the base station was designed. The UE needs to report its own capabilities, and the base station can configure a suitable bandwidth expansion scheme for the UE according to the actual network conditions. This allows for the adjustment of N only when calculating the RB allocation, without increasing the UE's uplink channel bandwidth configuration. RB Virtual expansion is performed to convert some OuterRB allocations into InnerRB allocations, thereby reducing MPR;

[0107] Second, the technical points proposed in this solution can significantly expand the InnerRB allocation range of UE bandwidth RB allocation, enabling more high-bandwidth scenarios to use the MPR value of InnerRB allocation, thereby improving the uplink transmission power of the terminal while ensuring throughput. Furthermore, this solution is decoupled from the transmission waveform and is applicable to both DFT-s-OFDM and CP-OFDM waveforms.

[0108] This application also provides a terminal. Figure 6 shows a schematic diagram of the terminal structure in an exemplary embodiment of this application. As shown in Figure 6, the terminal 600 may include a capability reporting module 610 and an information receiving module 620. Wherein:

[0109] The capability reporting module 610 is used to report terminal capability information to network-side devices.

[0110] The terminal capability information includes the terminal's ability to determine the maximum power reduction value based on the extended terminal bandwidth.

[0111] In some embodiments of this application, the capability reporting module 610 reports terminal capability information to the network-side device, including:

[0112] The terminal capability information is reported to the network-side device based on the Radio Resource Control Layer protocol.

[0113] In some embodiments of this application, after reporting terminal capability information to the network-side device, the information receiving module 620 is configured to:

[0114] Receive the instruction information sent by the network-side device, and determine the terminal bandwidth extension value based on the instruction information.

[0115] In some embodiments of this application, receiving the indication information sent by the network-side device includes:

[0116] Receive the instruction information issued by the network-side device based on the radio resource control layer.

[0117] In some embodiments of this application, the indication information includes first indication information;

[0118] The first indication information is used to indicate the terminal bandwidth extension value, which includes an upper limit extension value and a lower limit extension value for the terminal bandwidth;

[0119] The terminal bandwidth extension value includes variable values ​​defined by the network-side device.

[0120] In some embodiments of this application, the indication information includes second indication information;

[0121] The second indication information is used to indicate the terminal bandwidth extension value, which includes an upper limit extension value and a lower limit extension value for the terminal bandwidth;

[0122] The terminal bandwidth extension value includes a fixed value defined by the network-side device.

[0123] In some embodiments of this application, the indication information includes third indication information;

[0124] The third indication information is used to indicate that the terminal bandwidth is symmetrically expanded based on the terminal bandwidth expansion value;

[0125] The terminal bandwidth extension value includes variable values ​​defined by the network-side device.

[0126] In some embodiments of this application, the indication information includes fourth indication information;

[0127] The fourth indication information is used to indicate that the terminal bandwidth is symmetrically expanded based on the terminal bandwidth expansion value;

[0128] The terminal bandwidth extension value includes a fixed value defined by the network-side device.

[0129] In some embodiments of this application, the fixed value is obtained by adjusting the terminal bandwidth based on a preset scaling factor;

[0130] The preset scaling factor is greater than or equal to 0 and less than or equal to 0.5.

[0131] In some embodiments of this application, the maximum power reduction value is lower than the reference maximum power reduction value.

[0132] In some embodiments of this application, the terminal bandwidth extension value is used to influence the determination strategy of internal resource block allocation, so as to expand the range of internal resource block allocation of the terminal.

[0133] The specific details of each module in the aforementioned terminal have been described in detail in the corresponding terminal uplink transmit power control method, so they will not be repeated here.

[0134] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to the embodiments of this application, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0135] Furthermore, although the steps of the method in this application are described in a specific order in the accompanying drawings, this does not require or imply that the steps must be performed in that specific order, or that all the steps shown must be performed to achieve the desired result. Additional or alternative steps may be omitted, multiple steps may be combined into one step, and / or a step may be broken down into multiple steps.

[0136] Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, mobile terminal, or network device, etc.) to execute the method according to the embodiments of this application.

[0137] This application also provides a computer-readable storage medium, which may be included in the electronic device described in the above embodiments; or it may exist independently and not assembled into the electronic device.

[0138] Computer-readable storage media can be, for example,—but not limited to—electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0139] A computer-readable storage medium can be sent, propagated, or transmitted for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable storage medium can be transmitted using any suitable medium, including but not limited to: wireless, wireline, optical fiber, RF, etc., or any suitable combination thereof.

[0140] A computer-readable storage medium carries one or more programs that, when executed by an electronic device, cause the electronic device to perform the methods described in the above embodiments.

[0141] Furthermore, this application also provides an electronic device capable of implementing the above-described method.

[0142] Those skilled in the art will understand that various aspects of this application can be implemented as a system, method, or program product. Therefore, various aspects of this application can be specifically implemented in the following forms: a completely hardware implementation, a completely software implementation (including firmware, microcode, etc.), or a combination of hardware and software implementations, collectively referred to herein as a "circuit," "module," or "system."

[0143] The electronic device 700 according to this embodiment of the present application will now be described with reference to FIG7. The electronic device 700 shown in FIG7 is merely an example and should not be construed as limiting the functionality and scope of the embodiments of the present application.

[0144] As shown in Figure 7, the electronic device 700 is presented in the form of a general-purpose computing device. The components of the electronic device 700 may include, but are not limited to: at least one processor 710, at least one memory 720, a bus 730 connecting different system components (including memory 720 and processor 710), and a display 740.

[0145] The memory stores program code that can be executed by the processor 710, causing the processor 710 to perform the steps described in the "Exemplary Methods" section above according to various exemplary embodiments of this application. For example, the processor 710 can perform the following step as shown in FIG5: Step S510, reporting terminal capability information to the network-side device; the terminal capability information includes terminal support for determining a maximum power reduction value based on the extended terminal bandwidth.

[0146] The memory 720 may include a readable medium in the form of volatile storage, such as random access memory (RAM) 7201 and / or cache memory 7202, and may further include read-only memory (ROM) 7203.

[0147] The memory 720 may also include a program / utility 7204 having a set (at least one) of program modules 7205, including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.

[0148] Bus 730 can represent one or more of several types of bus structures, including a memory bus or memory controller, peripheral bus, graphics acceleration port, processor, or a local bus using any of the various bus structures.

[0149] Electronic device 700 can also communicate with one or more external devices 800 (e.g., keyboard, pointing device, Bluetooth device, etc.), and with one or more devices that enable a user to interact with electronic device 700, and / or with any device that enables electronic device 700 to communicate with one or more other computing devices (e.g., router, modem, etc.). This communication can be performed via input / output (I / O) interface 750. Furthermore, electronic device 700 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 760. As shown, network adapter 760 communicates with other modules of electronic device 700 via bus 730. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with electronic device 700, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0150] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

Claims

1. A terminal uplink transmit power control method, comprising: Report terminal capability information to network-side devices; The terminal capability information includes the terminal's ability to determine the maximum power reduction value based on the extended terminal bandwidth.

2. The method of claim 1, wherein, The reporting of terminal capability information to the network-side device includes: The terminal capability information is reported to the network-side device based on the Radio Resource Control Layer protocol.

3. The method of claim 2, wherein, After reporting terminal capability information to the network-side device, the method further includes: Receive the instruction information sent by the network-side device, and determine the terminal bandwidth extension value based on the instruction information.

4. The method of claim 3, wherein, The receipt of the instruction information sent by the network-side device includes: Receive the instruction information issued by the network-side device based on the radio resource control layer.

5. The method of claim 4, wherein, The instruction information includes first instruction information; The first indication information is used to indicate the terminal bandwidth extension value, which includes an upper limit extension value and a lower limit extension value for the terminal bandwidth; The terminal bandwidth extension value includes variable values ​​defined by the network-side device.

6. The method of claim 4, wherein, The instruction information includes second instruction information; The second indication information is used to indicate the terminal bandwidth extension value, which includes an upper limit extension value and a lower limit extension value for the terminal bandwidth; The terminal bandwidth extension value includes a fixed value defined by the network-side device.

7. The method of claim 4, wherein, The instruction information includes third instruction information; The third indication information is used to indicate that the terminal bandwidth is symmetrically expanded based on the terminal bandwidth expansion value; The terminal bandwidth extension value includes variable values ​​defined by the network-side device.

8. The method of claim 4, wherein, The instruction information includes fourth instruction information; The fourth indication information is used to indicate that the terminal bandwidth is symmetrically expanded based on the terminal bandwidth expansion value; The terminal bandwidth extension value includes a fixed value defined by the network-side device.

9. The method of claim 6 or 8, wherein, The fixed value is obtained by adjusting the terminal bandwidth based on a preset scaling factor; The preset scaling factor is greater than or equal to 0 and less than or equal to 0.

5.

10. The method according to any one of claims 1 to 8, wherein, The maximum power reduction value is lower than the reference maximum power reduction value.

11. The method according to any one of claims 1 to 8, wherein, The terminal bandwidth extension value is used to influence the determination strategy of internal resource block allocation, so as to expand the range of internal resource block allocation of the terminal.

12. The method of claim 3, wherein, The unit of the terminal bandwidth extension value is MHz or the number of resource blocks (RBs).

13. The method of claim 9, wherein, The preset scaling factor is 0.5, so that the allocation method of all resource blocks (RBs) of the terminal is determined to be internal resource block allocation.

14. A terminal, comprising: The capability reporting module is used to report terminal capability information to network-side devices; The terminal capability information includes the terminal's ability to determine the maximum power reduction value based on the extended terminal bandwidth.

15. A computer readable storage medium having stored thereon a computer program, wherein, When the computer program is executed by the processor, it implements the terminal uplink transmission power control method according to any one of claims 1 to 13.

16. An electronic device comprising: processor; as well as Memory for storing the executable instructions of the processor; The processor is configured to execute the terminal uplink transmission power control method according to any one of claims 1 to 13 by executing the executable instructions.

Images