Terminal transmitting power control method, terminal and storage medium

Abstract

The embodiment of the invention provides a terminal transmitting power control method, a terminal and a storage medium, and belongs to the technical field of communication. The method comprises the steps that after a terminal accesses a network, the current position of the terminal and the state of the terminal are determined, and the state comprises a fixed point or a moving state; according to the current position and the state, a power map obtained through network model training is inquired, the steady-state transmitting power currently corresponding to the terminal is determined, and the power map comprises the mapping relation between the position of the terminal and the steady-state transmitting power of the terminal when data transmission reaches a preset reliability index threshold value; and adjusting the actual transmitting power of the terminal according to the steady-state transmitting power. According to the technical scheme of the embodiment of the invention, the reliability of data transmission is improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method for controlling terminal transmission power, a terminal and a storage medium. Background Art

[0002] Nowadays, there are some methods to improve reliability in some business scenarios with high reliability requirements, such as production line control and remote-controlled overhead cranes. For example, reliability can be improved through dual-transmission and selective reception technology of two links, dual-frequency network joint super cell coverage, and QoS (Quality of Service) transmission based on business type. The above solutions all rely on scheduling control on the base station side. For the terminal side, although the terminal's transmission power can be controlled to increase, the increase in the terminal's transmission power may cause the reliability and throughput of the wireless network system to decrease, and cannot meet the data transmission reliability requirements.

[0003] Therefore, how to improve the reliability of data transmission becomes an urgent problem to be solved. Summary of the invention

[0004] The main purpose of the embodiments of the present application is to provide a method for controlling the transmission power of a terminal, a terminal and a storage medium, so as to improve the reliability of data transmission.

[0005] In a first aspect, an embodiment of the present application provides a method for controlling the transmit power of a terminal, the method comprising:

[0006] After the terminal accesses the network, determining the current location of the terminal and the state of the terminal, the state including fixed point or mobile;

[0007] According to the current position and the state, query a power map obtained through network model training to determine the steady-state transmit power currently corresponding to the terminal, wherein the power map includes a mapping relationship between the position of the terminal and the steady-state transmit power of the terminal when data transmission reaches a preset reliability index threshold;

[0008] The actual transmit power of the terminal is adjusted according to the steady-state transmit power.

[0009] In a second aspect, an embodiment of the present application provides a terminal, the terminal comprising:

[0010] A processor, a memory, a computer program stored in the memory and executable by the processor, and a data bus for realizing connection and communication between the processor and the memory, wherein when the computer program is executed by the processor, the steps of the terminal transmission power control method as described in any one of the above items are implemented.

[0011] In a third aspect, an embodiment of the present application provides a storage medium for computer-readable storage, characterized in that the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the terminal transmission power control method as described in any one of the above items.

[0012] The embodiments of the present application provide a method for controlling the transmission power of a terminal, a terminal and a storage medium. A power map is obtained through network model training. The power map includes a mapping relationship between the position of the terminal and the steady-state transmission power of the terminal when the data transmission reaches a preset reliability index threshold. After the terminal is connected to the network, the current position of the terminal and the state of the terminal are determined. According to the current position and state, the power map is queried to determine the steady-state transmission power currently corresponding to the terminal. According to the determined steady-state transmission power, the actual transmission power of the terminal is adjusted. In this way, the reliability of the data transmission by the terminal based on the adjusted transmission power reaches the reliability index threshold, thereby improving the reliability of data transmission, that is, achieving high reliability of data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 A schematic diagram of a flow chart of a method for controlling terminal transmit power provided by an embodiment of the present invention;

[0015] Figure 2 A schematic diagram of a wireless communication system provided by an embodiment of the present invention;

[0016] Figure 3 A schematic diagram of a process for generating a power map provided by an embodiment of the present invention;

[0017] Figure 4 A flowchart of adjusting the actual transmit power of a terminal provided by an embodiment of the present invention;

[0018] Figure 5 A schematic diagram of a process for adjusting the actual transmit power of the terminal according to the steady-state transmit power provided in an embodiment of the present invention;

[0019] Figure 6 A schematic flow chart of another method for controlling terminal transmit power provided by an embodiment of the present invention;

[0020] Figure 7A schematic block diagram of the structure of a terminal provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0023] It should be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0024] At present, there are some methods to improve reliability in some business scenarios with high reliability requirements, such as production line control and remote-controlled overhead cranes. For example, reliability can be improved through dual-transmit selective reception technology of two links, dual-frequency network joint super cell coverage, and QoS transmission based on service type. The above solutions all rely on scheduling control on the base station side. For the terminal side, although the terminal's transmit power can be controlled to increase, the increase in the terminal's transmit power may cause a decrease in the reliability and throughput of the wireless network system, which cannot meet the data transmission reliability requirements.

[0025] In order to solve the above problems, the embodiments of the present invention provide a method for controlling the transmission power of a terminal, a terminal and a storage medium, aiming to improve the reliability of data transmission.

[0026] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0027] Please refer to Figure 1 , Figure 1 A schematic flow chart of a method for controlling terminal transmit power provided in an embodiment of the present invention.

[0028] like Figure 1 As shown, the method for controlling the terminal transmission power includes steps S101 to S103.

[0029] S101: After a terminal accesses a network, a current location of the terminal and a state of the terminal are determined, where the state includes being fixed or moving.

[0030] Exemplarily, the terminal includes but is not limited to a toB (to Business) terminal, a toC (to Customer) terminal, etc. The state of the terminal generally includes a fixed point or a mobile state.

[0031] For example, taking the toB terminal as an example, based on the application scenarios of the toB terminal, such as common manufacturing workshops, steel mills, ports, mines, power supply systems, etc., the toB terminal is generally stationary, or moves within a limited range, or moves along a fixed trajectory.

[0032] For example, Figure 2 As shown, in a wireless communication system, including a terminal and a base station, after the terminal accesses the network, that is, accesses the base station, in order to achieve appropriate adjustment of the terminal transmission power while meeting the service reliability requirements, the current location of the terminal is determined, and it is determined whether the terminal is currently in a fixed state or a mobile state.

[0033] For example, the terminal is positioned through a GPS (Global Positioning System) system to determine the current location of the terminal.

[0034] For another example, a speed sensor installed on the terminal is used to determine whether the terminal is currently in a fixed state or a moving state.

[0035] S102. According to the current position and the state, query the power map obtained through network model training to determine the steady-state transmission power currently corresponding to the terminal, wherein the power map includes a mapping relationship between the position of the terminal and the steady-state transmission power of the terminal when the data transmission reaches a preset reliability index threshold.

[0036] In the present application, a power map is obtained in advance through network model training, wherein the power map includes a mapping relationship between the location of the terminal and the steady-state transmission power of the terminal when the terminal performs data transmission and reaches a preset reliability index threshold. The power map can be used to appropriately adjust and control the terminal transmission power while meeting service reliability requirements.

[0037] It should be noted that the preset reliability index threshold can be flexibly set according to actual conditions, and is not specifically limited in this application. For example, the reliability index threshold can be preset to 99.999%, and it is understandable that the reliability index threshold can also be set to other values.

[0038] In some embodiments, Figure 3As shown, step S104 and step S105 may be included before step S101.

[0039] S104: Perform network model training through sample data transmission until the reliability index corresponding to the sample data transmission reaches a reliability index threshold.

[0040] S105: Record the location of the terminal and the steady-state transmission power of the terminal when the reliability index threshold is reached, and generate the power map.

[0041] The sample data includes but is not limited to various types of data such as images, videos, files, etc. According to the application scenario of the terminal, corresponding types of sample data can be used, and the type of sample data is related to the service of the terminal.

[0042] Exemplarily, PLC (Programmable Logic Controller) device data and camera video data are collected for simulation and abstracted into sample data to implement network model training.

[0043] Among them, PLC device data collection mainly includes two parts of data: (1) data inside the PLC device, which is used to understand the operating status of the equipment; (2) the PLC device acts as a control unit to collect the switch quantity and analog quantity of the controlled external device, such as temperature, humidity, pressure, voltage, resistance, flow, relay switch status, etc.

[0044] The communication of PLC is mainly serial, and the commonly used standard transmission rates are 300, 600, 1200, 2400, 4800, 9600 and 19200 bps (bit per second), so the rate of collected data is relatively low. In addition, whether it is the data inside the PLC device or the data of the external device it controls, there is a certain sampling period. At the same time, the PLC device will also receive the control instructions sent by the terminal. The control instructions also follow the standard transmission rate of the serial communication of the PLC. The control instructions are only sent when the working state of the remote device is changed, and they are not periodic.

[0045] Therefore, the PLC equipment data collected above can be abstractly simulated into an uplink periodic regular small packet service and a downlink irregular pulse type small packet service. Furthermore, the uplink periodic regular small packet service can use the uplink UDP (User Datagram Protocol) small flow packet filling, and the downlink irregular pulse type small packet service can use HTTP (Hypertext Transfer Protocol) to download.

[0046] The video data of the camera is generated in real time. The data rate is related to the resolution. The general 1080P (2 million pixels) data rate is about 4Mbps. Video data is refreshed and generated in a frame rate manner. When the video data is sent to the terminal, the reliability of the data must be guaranteed. There must be no data packet loss or freeze. It can be abstracted as an uplink continuous large packet service. Furthermore, the video data is abstracted as FTP (File Transfer Protocol) continuous upload (for example, uploading a 100M file).

[0047] After the terminal initially accesses the network, it actively initiates sample data for channel reliability measurement at different locations, conducts network model training through sample data transmission, and detects the reliability index of sample data transmission. Among them, the channels sent by the terminal include but are not limited to PUSCH (Physical uplink shared channel) and PUCCH (Physical uplink control channel). Among them, PUSCH is mainly used to transmit data packets, and PUCCH is mainly used to transmit uplink control information, including CRC (Cyclic redundancy check) feedback of downlink PDSCH (Physical Downlink Shared Channel), request uplink SR (Scheduling request), and CSI (Channel state information) of downlink measurement.

[0048] Exemplarily, the performing network model training by transmitting sample data until the reliability index corresponding to the sample data transmission reaches the reliability index threshold includes:

[0049] Requesting a preset number of times of sample data transmission within a preset time period to obtain a block error rate BLER indicator corresponding to the sample data transmission;

[0050] Determining the reliability indicator of the sample data transmission according to the BLER indicator;

[0051] If the reliability index does not reach the reliability index threshold, the network model training is continued until the reliability index reaches the reliability index threshold.

[0052] It should be noted that the preset duration and preset number of times can be flexibly set according to actual conditions, and no specific restrictions are made in this application.

[0053] After the terminal initially accesses the network, for the case of being in a fixed-point state, it cooperates with the base station to transmit a preset number of sample data within a preset time length, and obtains the BLER (Block Error Ratio) indicator fed back by the base station. The reliability indicator of sample data transmission can be determined by the BLER indicator.

[0054] Compare the reliability index of the sample data transmission with the reliability index threshold. If the reliability index of the sample data transmission does not reach the reliability index threshold, for example, it is lower than 99.999%, it means that the reliability of the data transmission does not meet the requirement. At this time, the terminal adjusts the transmission power, and based on different transmission powers, requests a preset number of sample data transmissions within a preset time length again, obtains a new BLER index fed back, and determines whether the reliability index of this sample data transmission reaches the reliability index threshold based on the new BLER index. If the reliability index threshold is still not reached, continue to train the network model through sample data transmission until the reliability index corresponding to the sample data transmission reaches the reliability index threshold, and the training ends. Record the terminal's transmission power and the terminal's position at this time. In order to facilitate the distinction and description, the terminal's transmission power when the reliability index of the sample data transmission reaches the reliability index threshold is referred to as the steady-state transmission power below. That is, the terminal's position and the terminal's steady-state transmission power are recorded in association.

[0055] When the terminal is in a mobile state, mobile training is performed within the motion trajectory or range, and the terminal's motion trajectory is sampled and divided into several points. For each point, the preset number of sample data is transmitted in collaboration with the base station within a preset time, and the BLER index fed back by the base station is obtained. Based on the BLER index, it is determined whether the reliability index of the sample data transmission reaches the reliability index threshold. If the reliability index threshold is not reached, the network model training continues through sample data transmission until the reliability index corresponding to the sample data transmission reaches the reliability index threshold, and the training ends. The terminal's position at the point and the terminal's steady-state transmission power are associated and recorded.

[0056] In the above manner, the terminal at various different positions and the steady-state transmit power of the terminal corresponding to each position are recorded to generate a corresponding power map. Therefore, the power map includes a mapping relationship between the position of the terminal and the steady-state transmit power of the terminal.

[0057] Exemplarily, in the above training process, if the reliability index of the terminal for sample data transmission cannot reach the required reliability index threshold, the wireless communication system can be optimized. For example, adjust the site engineering parameters, where the engineering parameters include but are not limited to antenna tilt angle, coverage azimuth, AAU (Active Antenna Unit) hanging height position, etc. For another example, adjust the wireless communication system parameter configuration, including staggering frequency points, adjusting base station transmission and reception target power, adjusting PCI (Physical Cell Identifier), adjusting neighboring cell relations, etc. For another example, optimize beams, including adjusting wide beams, multi-beam polling, and beam weights, etc. For another example, make site planning adjustments, including adjusting site locations, adding new sites, adding new antennas and AAUs, macro and micro cell collaborative planning, super cell coverage, etc.

[0058] Exemplarily, the power map can be recorded in the terminal or in the base station. When the power map is recorded in the terminal, the advantages of distributed power adjustment can be fully utilized to release the computing pressure on the base station side.

[0059] After the terminal accesses the network, it starts normal data transmission, queries the power map based on the determined current location of the terminal and the status of the terminal, and determines the steady-state transmission power corresponding to the current location of the terminal based on the mapping relationship between the location of the terminal in the power map and the steady-state transmission power of the terminal.

[0060] In some embodiments, querying a preconfigured power map according to the current position and the state to determine the current steady-state transmit power corresponding to the terminal includes:

[0061] If the terminal is in a fixed-point state, query the power map to obtain a first steady-state transmit power mapped to the current position, and determine the first steady-state transmit power as the steady-state transmit power currently corresponding to the terminal;

[0062] If the terminal is in a mobile state, the power map is queried to obtain the target position corresponding to the current position and the second steady-state transmission power mapped to the target position, and the steady-state transmission power currently corresponding to the terminal is determined according to the second steady-state transmission power.

[0063] When the terminal is in a fixed-point state, since the power map records the position corresponding to the terminal fixed point and the mapped steady-state transmit power of the terminal, the steady-state transmit power of the terminal mapped to the current position of the terminal fixed point can be obtained by querying the power map. For ease of description, the steady-state transmit power currently corresponding to the terminal obtained by query is referred to as the first steady-state transmit power.

[0064] In the case where the terminal is in a mobile state, the current position of the terminal may be exactly the position of the terminal at a certain point recorded in the power map, or the current position of the terminal may be the position of the terminal between two adjacent points recorded in the power map. At this time, query the power map to obtain the target position corresponding to the current position of the terminal. The target position may be the same position as the current position of the terminal, or the target position may be adjacent to the current position of the terminal. By querying the power map, the second steady-state transmission power mapped to the target position is obtained, and the steady-state transmission power corresponding to the terminal is determined according to the second steady-state transmission power.

[0065] In some embodiments, determining the steady-state transmit power currently corresponding to the terminal according to the second steady-state transmit power includes:

[0066] If the current position and the target position are the same position, determining the second steady-state transmit power as the steady-state transmit power currently corresponding to the terminal;

[0067] If the current position is a position adjacent to the target position in the power map, a third steady-state transmit power is determined according to the second steady-state transmit power, and the third steady-state transmit power is determined as the steady-state transmit power currently corresponding to the terminal.

[0068] When the current position of the terminal is exactly the same as the target position recorded in the power map, the second steady-state transmission power mapped to the target position is determined as the steady-state transmission power currently corresponding to the terminal in a similar processing method to the case where the terminal is in a fixed-point state.

[0069] In the case where the current location of the terminal is adjacent to the target location in the power map, at this time, after obtaining the second steady-state transmit power mapped to the target location by querying the power map, the steady-state transmit power currently corresponding to the terminal is determined based on the second steady-state transmit power. For the convenience of distinguishing descriptions, it is hereinafter referred to as the third steady-state transmit power.

[0070] In some embodiments, determining a third steady-state transmit power according to the second steady-state transmit power includes:

[0071] Determine a first path loss corresponding to the current position and a second path loss corresponding to the target position;

[0072] Calculating a path loss difference between the first path loss and the second path loss;

[0073] The third steady-state transmit power is determined according to the path loss difference and the second steady-state transmit power.

[0074] In the case where the current position of the terminal is a position adjacent to the target position in the power map, at this time, the first path loss corresponding to the data transmission of the terminal at the current position is calculated in real time.

[0075] Exemplarily, by acquiring the carrier frequency, the propagation distance, and the preconfigured attenuation coefficient, the first path loss corresponding to the data transmission of the terminal at the current position is calculated.

[0076] For example, the path loss PL is calculated by the following formula (1):

[0077] PL=32.45+20lgf+20lgd + B (1)

[0078] Wherein, PL is the path loss corresponding to the data transmission of the terminal, in dB; f is the carrier frequency, in MHz; d is the propagation distance, in km; B is the pre-configured attenuation coefficient. The first path loss PL1 corresponding to the data transmission of the terminal at the current location can be calculated by formula (1).

[0079] Exemplarily, the path loss may also be obtained by obtaining the transmit power of the reference signal and RSRP (Reference Signal Receiving Power) and calculating the difference between the transmit power of the reference signal and RSRP.

[0080] The second path loss PL0 corresponding to the terminal at the target position can be obtained in the same way, or the various positions of the terminal and the corresponding path losses can be associated and recorded in the power map, and the second path loss PL0 corresponding to the target position can be obtained by querying the power map.

[0081] After obtaining the first path loss PL1 corresponding to the data transmission of the terminal at the current position and the second path loss PL0 corresponding to the target position, the path loss difference △PL=PL1-PL0 between the first path loss PL1 and the second path loss PL0 is calculated.

[0082] Then, according to the path loss difference △PL and the second steady-state transmission power mapped to the target position, the path loss difference △PL is compensated to the second steady-state transmission power to obtain the third steady-state transmission power, and the third steady-state transmission power is determined as the steady-state transmission power corresponding to the current position of the terminal.

[0083] S103: Adjust the actual transmit power of the terminal according to the steady-state transmit power.

[0084] During the normal data transmission of the terminal, the actual transmission power of the terminal is obtained, and the actual transmission power is compared with the steady-state transmission power corresponding to the determined current position of the terminal. Based on the steady-state transmission power, the actual transmission power of the terminal is adjusted so that the actual transmission power of the terminal maintains a dynamic balance based on the steady-state transmission power. In this way, the reliability of the terminal performing data transmission based on the adjusted transmission power reaches the reliability index threshold, thereby improving the reliability of data transmission, that is, achieving high reliability of data transmission.

[0085] For example, Figure 4 As shown, the steady-state transmit power corresponding to the current position of the terminal is determined by calculating the path loss PL and querying the power map, and the actual transmit power of the terminal is compared with the steady-state transmit power to adjust the actual transmit power of the terminal.

[0086] In some embodiments, Figure 5 As shown, the step S103 may include sub-steps S1031 to S1033.

[0087] S1031. Calculate a power offset value between the steady-state transmit power and the actual transmit power;

[0088] S1032. If the power offset value is less than or equal to a preset power offset threshold, maintaining the actual transmit power;

[0089] S1033: If the power offset value is greater than the preset power offset threshold, adjusting the actual transmit power with the steady-state transmit power as a target.

[0090] Exemplarily, the preset power offset threshold can be set to an integer multiple of the power control adjustment step. It should be noted that the preset power offset threshold can be flexibly set according to actual conditions, and is not specifically limited in this application. For example, the preset power offset threshold can be preset to 4 dB. It is understandable that the preset power offset threshold can also be set to other values.

[0091] The difference between the actual transmit power and the steady-state transmit power corresponding to the determined current position of the terminal is calculated to obtain the absolute value of the power offset between the steady-state transmit power and the actual transmit power. Then, the calculated absolute value of the power offset is compared with the preset power offset threshold. If the absolute value of the power offset is less than or equal to the preset power offset threshold, for example, the absolute value of the power offset is less than 4dB, then the actual transmit power of the terminal is maintained and no power adjustment is required.

[0092] If the absolute value of the power offset is greater than the preset power offset threshold, for example, the absolute value of the power offset is greater than 4 dB, then the actual transmit power of the terminal is adjusted based on the steady-state transmit power corresponding to the current position of the terminal.

[0093] For example, taking the preset power offset threshold as 4dB, the steady-state transmit power corresponding to the current position of the terminal is used as the center point to set a transmit power range with a 4dB jitter. If the actual transmit power of the terminal is within the transmit power range, the actual transmit power of the terminal is maintained and no power adjustment is required. If the actual transmit power of the terminal is outside the transmit power range, the actual transmit power of the terminal is controlled and adjusted to be within the transmit power range.

[0094] Exemplarily, the actual transmit power of the terminal is adjusted according to the following formula (2):

[0095]

[0096] Among them, P b,f,c (i,j,q d , l) is the adjusted transmit power, b is the activation BWP (Bandwidth Part) indication, f is the carrier indication in the serving cell, c is the serving cell indication, i is the transmission scenario indication, j is the parameter set configuration indication, q d is the reference signal resource indication, l is the power control adjustment state indication; P CMAX,f,c (i) The maximum transmit power allowed for each carrier; P O_b,f,c (j) is a network configurable parameter, which can be described as the target received power; u is the subcarrier spacing configuration indicator; M RB,b,f,c (i) The number of RBs allocated for channel transmission; α b,f,c (j) is a network configurable parameter related to path loss compensation; PL b,f,c (q d ) is an estimate of the path loss; Δ TF,b,f,c (i) is a parameter related to the modulation scheme and channel coding rate used for channel transmission; f b,f,c (i,l) is the power adjustment value caused by closed-loop power control.

[0097] For example, for f b,f,c (i, l), when the RRC (Radio Resource Control) layer configuration parameter tpc-Accumulation is not configured, the following formula (3) is used to obtain f by accumulation b,f,c (i,l):

[0098] f b,f,c (i,l)=f b,f,c (ii0 ,l)+∑δ b,f,c (3)

[0099] Among them, in the accumulation method, δ b,f,c The values ​​of are shown in Table 1 below:

[0100] Table 1

[0101]

[0102]

[0103] That is, in the accumulation mode, when the TPC (Transmit Power Control) CommandField power control command field is 0, δ b,f,c The value is -1dB; when TPC Command Field is 1, δ b,f,c The value is 0dB; when TPC Command Field is 2, δ b,f,c The value is 1dB; when TPC Command Field is 3, δ b,f,c The value is 3dB.

[0104] When the RRC layer configuration parameter tpc-Accumulation is configured, f is obtained using the absolute value method according to the following formula (4): b,f,c (i,l):

[0105] f b,f,c (i,l)=δ b,f,c (i,l) (4)

[0106] Among them, in the absolute value method, δ b,f,c The values ​​of are shown in Table 2 below:

[0107] Table 2

[0108] TPC Command Field <![CDATA[δ b,f,c ]]> 0 -4 1 -1 2 1 3 4

[0109] That is, in the absolute value mode, when the TPC Command Field is 0, δ b,f,c The value is -4dB; when TPCCommand Field is 1, δ b,f,c The value is -1dB; when TPC Command Field is 2, δ b,f,c The value is 1dB; when TPC Command Field is 3, δ b,f,c The value is 4dB.

[0110] In some embodiments, Figure 6As shown, the step S103 may further include steps S106 to S108.

[0111] S106, obtaining a real-time reliability index of data transmission by the terminal based on the adjusted actual transmit power;

[0112] S107. If the real-time reliability index does not reach the reliability index threshold, adjusting the actual transmit power of the terminal again so that the real-time reliability index of data transmission based on the adjusted actual transmit power reaches the reliability index threshold;

[0113] S108: Update the power map according to the adjusted actual transmit power.

[0114] After adjusting the actual transmit power of the terminal based on the steady-state transmit power, during the normal operation of the terminal, the real-time reliability index of the terminal performing data transmission based on the adjusted actual transmit power is monitored in real time. Exemplarily, the real-time reliability index is determined by obtaining the BLER index of the terminal performing data transmission based on the adjusted actual transmit power.

[0115] If the real-time reliability index reaches the reliability index threshold, such as 99.999%, at this time, data transmission achieves high reliability. If the real-time reliability index does not reach the reliability index threshold, such as less than 99.999%, at this time, based on the steady-state transmission power, the actual transmission power of the terminal is adjusted again.

[0116] Exemplarily, the preset power offset threshold is increased, that is, the power adjustment threshold is released, the transmission power range with the upper and lower jitter adjustment thresholds set with the steady-state transmission power as the center point is expanded, and the actual transmission power of the terminal is adjusted within the expanded transmission power range.

[0117] Then, the real-time reliability index of the terminal for data transmission based on the adjusted actual transmission power is monitored in real time, and the operation is repeated until the real-time reliability index for data transmission based on the adjusted actual transmission power reaches the reliability index threshold.

[0118] Afterwards, the current position of the terminal and the actual transmission power of the terminal after final adjustment are recorded in association in the power map, and the power map is updated so that the updated power map can be used later, thereby further improving the reliability of data transmission.

[0119] For example, if the real-time reliability index does not reach the reliability index threshold, an alarm message is reported, wherein the alarm message includes but is not limited to text message and voice message.

[0120] By recording the adjusted real-time transmission power update to the power map as a reference for subsequent adjustments, it is ensured that the transmission power meets the reliability index requirements. At the same time, the actual transmission power of the terminal is adjusted within the corresponding transmission power range, which can also avoid the terminal's excessive transmission power from interfering with other terminals and also have a certain energy-saving effect.

[0121] In the above embodiment, a power map is obtained through network model training, and the power map includes a mapping relationship between the terminal's position and the terminal's steady-state transmission power when data transmission reaches a preset reliability index threshold. After the terminal accesses the network, the terminal's current position and the terminal's status are determined. According to the current position and status, the power map is queried to determine the steady-state transmission power currently corresponding to the terminal, and the actual transmission power of the terminal is adjusted according to the determined steady-state transmission power. In this way, the reliability of the terminal's data transmission based on the adjusted transmission power reaches the reliability index threshold, thereby improving the reliability of data transmission, that is, achieving high reliability of data transmission.

[0122] The embodiment of the present invention also provides a terminal, see Figure 7 , Figure 7 It is a schematic block diagram of a terminal provided in one embodiment of the present application.

[0123] like Figure 7 As shown, the terminal 200 may include a processor 210 and a memory 220, wherein the processor 210 and the memory 220 are connected via a bus, such as an I2C (Inter-integrated Circuit) bus.

[0124] Specifically, the processor 210 may be a micro-controller unit (MCU), a central processing unit (CPU), or a digital signal processor (DSP).

[0125] Specifically, the memory 220 may be a Flash chip, a read-only memory (ROM) disk, an optical disk, a USB disk, or a mobile hard disk, etc. The memory 220 stores various computer programs for the processor 210 to execute.

[0126] The processor 210 is used to run a computer program stored in the memory, and implements the following steps when executing the computer program:

[0127] After the terminal accesses the network, determining the current location of the terminal and the state of the terminal, the state including fixed point or mobile;

[0128] According to the current position and the state, query a power map obtained through network model training to determine the steady-state transmit power currently corresponding to the terminal, wherein the power map includes a mapping relationship between the position of the terminal and the steady-state transmit power of the terminal when data transmission reaches a preset reliability index threshold;

[0129] The actual transmit power of the terminal is adjusted according to the steady-state transmit power.

[0130] In some embodiments, after the terminal accesses the network, the processor 210 determines the current location of the terminal and the state of the terminal, where the state includes before the fixed point or the moving point, to implement:

[0131] Performing network model training through sample data transmission until the reliability index corresponding to the sample data transmission reaches a reliability index threshold;

[0132] The position of the terminal and the steady-state transmission power of the terminal when the reliability index threshold is reached are recorded to generate the power map.

[0133] In some embodiments, the processor 210, when implementing the network model training through sample data transmission until the reliability index corresponding to the sample data transmission reaches the reliability index threshold, is used to implement:

[0134] Requesting a preset number of times of sample data transmission within a preset time period to obtain a block error rate BLER indicator corresponding to the sample data transmission;

[0135] Determining the reliability indicator of the sample data transmission according to the BLER indicator;

[0136] If the reliability index does not reach the reliability index threshold, the network model training is continued until the reliability index reaches the reliability index threshold.

[0137] In some embodiments, when the processor 210 implements the querying of a preconfigured power map according to the current position and the state to determine the steady-state transmit power currently corresponding to the terminal, it is configured to implement:

[0138] If the terminal is in a fixed-point state, query the power map to obtain a first steady-state transmit power mapped to the current position, and determine the first steady-state transmit power as the steady-state transmit power currently corresponding to the terminal;

[0139] If the terminal is in a mobile state, the power map is queried to obtain the target position corresponding to the current position and the second steady-state transmission power mapped to the target position, and the steady-state transmission power currently corresponding to the terminal is determined according to the second steady-state transmission power.

[0140] In some embodiments, when the processor 210 implements the determining of the steady-state transmit power currently corresponding to the terminal according to the second steady-state transmit power, it is configured to implement:

[0141] If the current position and the target position are the same position, determining the second steady-state transmit power as the steady-state transmit power currently corresponding to the terminal;

[0142] If the current position is a position adjacent to the target position in the power map, a third steady-state transmit power is determined according to the second steady-state transmit power, and the third steady-state transmit power is determined as the steady-state transmit power currently corresponding to the terminal.

[0143] In some embodiments, when the processor 210 implements the determining of the third steady-state transmit power according to the second steady-state transmit power, it is configured to implement:

[0144] Determine a first path loss corresponding to the current position and a second path loss corresponding to the target position;

[0145] Calculating a path loss difference between the first path loss and the second path loss;

[0146] The third steady-state transmit power is determined according to the path loss difference and the second steady-state transmit power.

[0147] In some embodiments, when the processor 210 implements the adjusting of the actual transmit power of the terminal according to the steady-state transmit power, it is configured to implement:

[0148] Calculating an absolute value of a power offset between the steady-state transmit power and the actual transmit power;

[0149] If the absolute value of the power offset is less than or equal to a preset power offset threshold, maintaining the actual transmit power;

[0150] If the absolute value of the power offset is greater than the preset power offset threshold, the actual transmit power is adjusted with the steady-state transmit power as a target.

[0151] In some embodiments, after implementing the adjustment of the actual transmit power of the terminal, the processor 210 is configured to implement:

[0152] Obtaining a real-time reliability indicator of data transmission by the terminal based on the adjusted actual transmit power;

[0153] If the real-time reliability index does not reach the reliability index threshold, adjusting the actual transmit power of the terminal again so that the real-time reliability index of data transmission based on the adjusted actual transmit power reaches the reliability index threshold;

[0154] The power map is updated according to the adjusted actual transmit power.

[0155] An embodiment of the present application also provides a storage medium for computer-readable storage, wherein the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of any terminal transmission power control method provided in the embodiment description of the present application.

[0156] The storage medium may be an internal storage unit of the terminal described in the foregoing embodiment, such as a hard disk or memory of the terminal. The storage medium may also be an external storage device of the terminal, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the terminal.

[0157] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In a hardware embodiment, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0158] It should be understood that the term "and / or" used in the present specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, including these combinations. It should be noted that, in this article, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including 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 system. In the absence of further restrictions, an element defined by the sentence "including a..." does not exclude the presence of other identical elements in the process, method, article or system including the element.

[0159] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A method for controlling terminal transmission power, the method comprising: After the terminal accesses the network, determining the current location of the terminal and the state of the terminal, the state including fixed point or mobile; According to the current position and the state, query a power map obtained through network model training to determine the steady-state transmit power currently corresponding to the terminal, wherein the power map includes a mapping relationship between the position of the terminal and the steady-state transmit power of the terminal when data transmission reaches a preset reliability index threshold; The actual transmit power of the terminal is adjusted according to the steady-state transmit power.

2. The method according to claim 1, characterized in that After the terminal accesses the network, determining the current location of the terminal and the state of the terminal, the state including the fixed point or before moving, includes: Performing network model training through sample data transmission until the reliability index corresponding to the sample data transmission reaches a reliability index threshold; The position of the terminal and the steady-state transmission power of the terminal when the reliability index threshold is reached are recorded to generate the power map.

3. The method according to claim 2, characterized in that The network model training is performed by transmitting sample data until the reliability index corresponding to the sample data transmission reaches the reliability index threshold, including: Requesting a preset number of times of sample data transmission within a preset time period to obtain a block error rate BLER indicator corresponding to the sample data transmission; Determining the reliability indicator of the sample data transmission according to the BLER indicator; If the reliability index does not reach the reliability index threshold, the network model training is continued until the reliability index reaches the reliability index threshold.

4. The method according to claim 1, characterized in that: The querying a preconfigured power map according to the current position and the state to determine the current steady-state transmit power corresponding to the terminal includes: If the terminal is in a fixed-point state, query the power map to obtain a first steady-state transmit power mapped to the current position, and determine the first steady-state transmit power as the steady-state transmit power currently corresponding to the terminal; If the terminal is in a mobile state, the power map is queried to obtain the target position corresponding to the current position and the second steady-state transmission power mapped to the target position, and the steady-state transmission power currently corresponding to the terminal is determined according to the second steady-state transmission power.

5. The method according to claim 4, characterized in that The determining, according to the second steady-state transmit power, the steady-state transmit power currently corresponding to the terminal includes: If the current position and the target position are the same position, determining the second steady-state transmit power as the steady-state transmit power currently corresponding to the terminal; If the current position is a position adjacent to the target position in the power map, a third steady-state transmit power is determined according to the second steady-state transmit power, and the third steady-state transmit power is determined as the steady-state transmit power currently corresponding to the terminal.

6. The method according to claim 5, characterized in that The determining a third steady-state transmit power according to the second steady-state transmit power comprises: Determine a first path loss corresponding to the current position and a second path loss corresponding to the target position; Calculating a path loss difference between the first path loss and the second path loss; The third steady-state transmit power is determined according to the path loss difference and the second steady-state transmit power.

7. The method according to claim 1, characterized in that The adjusting the actual transmit power of the terminal according to the steady-state transmit power includes: Calculating an absolute value of a power offset between the steady-state transmit power and the actual transmit power; If the absolute value of the power offset is less than or equal to a preset power offset threshold, maintaining the actual transmit power; If the absolute value of the power offset is greater than the preset power offset threshold, the actual transmit power is adjusted with the steady-state transmit power as a target.

8. The method according to any one of claims 1 to 7, characterized in that: After the actual transmit power of the terminal is adjusted, the method further comprises: Obtaining a real-time reliability indicator of data transmission by the terminal based on the adjusted actual transmit power; If the real-time reliability index does not reach the reliability index threshold, adjusting the actual transmit power of the terminal again so that the real-time reliability index of data transmission based on the adjusted actual transmit power reaches the reliability index threshold; The power map is updated according to the adjusted actual transmit power.

9. A terminal, characterized in that: The terminal comprises: A processor, a memory, a computer program stored in the memory and executable by the processor, and a data bus for realizing connection communication between the processor and the memory, wherein when the computer program is executed by the processor, the steps of the terminal transmission power control method as described in any one of claims 1 to 8 are realized.

10. A storage medium for computer-readable storage, characterized in that: The storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the terminal transmission power control method as described in any one of claims 1 to 8.

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