Power control method and device

Abstract

Provided are a power control method and device, the method comprising: a base station receiving N uplink signals sent by a terminal device, the N uplink signals being sent by the terminal device based on a first transmission power, N being an integer greater than 1. And the base station determines second transmission power of the uplink signals of the terminal equipment based on the filling data proportion condition in the N uplink signals of the terminal. And the base station instructs the terminal equipment to send the uplink signal at the second transmission power. Therefore, the transmitting power of the uplink signal of the terminal equipment can be adjusted based on the service condition of the terminal equipment.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and in particular to a power control method and device. Background Art

[0002] Compared with the previous 4th Generation Mobile Communication Technology (4G), the 5th Generation Mobile Communication Technology (5G) defines enhanced Mobile Broadband (eMBB), Massive Machine-Type Communications (mMTC) and ultra-reliable Low-latency Communication (URLLC), aiming to provide more reliable communication quality and a new communication experience for the exponentially growing number of access users. The number of users in 5G networks has increased significantly, and data transmission has exploded, so there is an urgent need for larger channel capacity and higher spectral efficiency (SE). In addition, the key capability indicators of 5G require that the number of bits that can be transmitted per joule of energy is 100 times that of 4G, so it is necessary to consider reducing energy consumption and improving the energy efficiency (EE) of the system from the perspective of green communication. Therefore, how to configure the uplink power has become an urgent problem to be solved. Summary of the invention

[0003] The present application provides a communication method and device, which can reduce energy consumption and improve the energy efficiency of the system to a certain extent.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] In a first aspect, an embodiment of the present application provides a power control method, the method comprising: a base station receives N uplink signals sent by a terminal device, the N uplink signals are sent by the terminal device based on a first transmission power, and N is an integer greater than 1. The base station determines a second transmission power of the uplink signal of the terminal device based on the proportion of padding data in the N uplink signals. The base station sends power indication information to the terminal device, and the power indication information is used to instruct the terminal device to send the uplink signal at the second transmission power.

[0006] In this way, the base station can determine the service transmission status of the uplink channel of the terminal device based on the filling data in the uplink signal sent by the terminal device, and further adjust the transmission power of the uplink channel based on the service transmission status, thereby avoiding resource waste, reducing system energy consumption, and improving system energy efficiency.

[0007] In one possible implementation, if the proportion of fill data in the N uplink signals meets a preset condition, the second transmission power is less than the first transmission power; the preset condition is used to indicate that the proportion of fill data in the N uplink signals exceeds a threshold.

[0008] In this way, the base station can determine the service situation of the terminal based on the proportion of filler data in the uplink signal. When the proportion of service data of the terminal is small, that is, the proportion of filler data is large, the transmission power of the uplink signal of the terminal device can be reduced, thereby reducing the energy consumption of the terminal device, further reducing the battery consumption of the terminal device, and extending the battery life of the device. In addition, it can improve the rationality of power allocation in the system to avoid waste of resources and improve the overall efficiency and throughput of the network. In addition, the present application sets corresponding power adjustment strategies for the service conditions of different terminal devices, which can avoid network congestion, improve communication efficiency, and enhance the user experience of online users. In addition, in an embodiment of the present application, in a scenario where the base station reduces the transmission power of a terminal device based on the service conditions, the inter-cell interference of the terminal device to other terminal devices in adjacent cells can be effectively reduced.

[0009] In a possible implementation, the method further includes: if the proportion of padding data in the N uplink signals does not satisfy the preset condition, then the second transmission power is greater than or equal to the first transmission power.

[0010] In this way, the base station can determine the service transmission status of the uplink channel of the terminal device based on the filling data in the uplink signal of the terminal, and further determine whether there is resource waste in the uplink channel of the terminal device based on the service transmission status. If not, the transmission power of the terminal device can be increased or not adjusted to meet the needs of different terminal devices.

[0011] In one possible implementation, a single uplink signal includes a padding data field, the padding data field includes padding data indication information, the padding data indication information is used to indicate whether the single uplink signal includes padding data, and based on the proportion of padding data in N uplink signals, the second transmission power of the uplink signal of the terminal device is determined, including: determining whether the single uplink signal includes padding data based on the padding data indication information in the padding data field of the single uplink signal; if the padding data indication information indicates that the single uplink signal does not include padding data, determining that the proportion of padding data in the single uplink signal is 0; if the padding data indication information indicates that the single uplink signal includes padding data, obtaining the proportion of padding data in the single uplink signal.

[0012] In this way, the base station in the present application can determine whether the padding data is included by identifying the padding data field. If the padding data is not included, the padding data ratio can be judged. If the padding data is carried, the padding data ratio can be judged based on the padding data to determine whether the preset condition is met.

[0013] In a possible implementation, the preset condition includes: the number of uplink signals in which the proportion of filler data exceeds a threshold value among the N uplink signals is greater than a preset number. In this way, by setting the preset condition, it is possible to measure whether the proportion of filler data exceeds the threshold value, so as to balance the relationship between resource utilization and power adjustment accuracy by setting a suitable preset condition.

[0014] In a possible implementation, the filling data ratio is a ratio of the filling data to the total data in the uplink signal, and the total data includes the filling data and the valid data.

[0015] In a possible implementation manner, the second power indication information is carried in a downlink control information DCI field of a physical downlink control channel PDCCH.

[0016] In a second aspect, the present application provides a power control device, including: a receiving module, a configuration module and a sending module. The receiving module is used to receive N uplink signals sent by a terminal device, where the N uplink signals are sent by the terminal device based on a first transmission power, and N is an integer greater than 1; the configuration module is used to determine a second transmission power of the uplink signal of the terminal device based on the proportion of padding data in the N uplink signals; and the sending module is used to send power indication information to the terminal device, where the power indication information is used to instruct the terminal device to send the uplink signal at the second transmission power.

[0017] In one possible implementation, if the proportion of fill data in the N uplink signals meets a preset condition, the second transmission power is less than the first transmission power; the preset condition is used to indicate that the proportion of fill data in the N uplink signals exceeds a threshold.

[0018] In a possible implementation, if the proportion of padding data in the N uplink signals does not meet a preset condition, the second transmission power is greater than or equal to the first transmission power.

[0019] In one possible implementation, a single uplink signal includes a fill data field, the fill data field includes fill data indication information, the fill data indication information is used to indicate whether the single uplink signal includes fill data, and the configuration module is specifically used to: determine whether the single uplink signal includes fill data based on the fill data indication information in the fill data field of the single uplink signal; if the fill data indication information indicates that the single uplink signal does not include fill data, determine that the fill data ratio of the single uplink signal is 0; if the fill data indication information indicates that the single uplink signal includes fill data, obtain the fill data ratio of the single uplink signal.

[0020] In a possible implementation manner, the preset condition includes: the number of uplink signals in which the proportion of padding data exceeds a threshold among the N uplink signals is greater than a preset number.

[0021] In a possible implementation, the filling data ratio is a ratio of the filling data to the total data in the uplink signal, and the total data includes the filling data and the valid data.

[0022] In a possible implementation manner, the second power indication information is carried in a downlink control information DCI field of a physical downlink control channel PDCCH.

[0023] In a third aspect, an embodiment of the present application provides a base station, comprising: a transceiver / transceiver pin and a processor, and optionally, a memory. The transceiver / transceiver pin, the processor, and the memory communicate with each other through an internal connection path; the processor is used to execute instructions to control the transceiver / transceiver pin to send or receive signals; and the memory is used to store instructions. When the processor executes the instructions, the processor executes the method described in the first aspect or any possible implementation of the first aspect.

[0024] In a fourth aspect, an embodiment of the present application provides a computer-readable medium for storing a computer program, wherein the computer program includes instructions for executing the method in the first aspect or any possible implementation of the first aspect.

[0025] In a fifth aspect, an embodiment of the present application provides a computer program comprising instructions for executing the method in the first aspect or any possible implementation of the first aspect.

[0026] In a sixth aspect, an embodiment of the present application provides a chip, the chip comprising a processing circuit and a transceiver pin, wherein the transceiver pin and the processing circuit communicate with each other through an internal connection path, and the processing circuit executes the method in the first aspect or any possible implementation of the first aspect to control the receiving pin to receive a signal, and to control the sending pin to send a signal.

[0027] In a seventh aspect, an embodiment of the present application provides a power control system, which includes the terminal device and the base station involved in the first and second aspects above. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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 of the present application will be briefly introduced below. Obviously, the drawings described below are only 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 labor.

[0029] Figure 1 is a schematic diagram of an exemplary communication system architecture;

[0030] Figure 2a is a schematic diagram of the structure of a base station shown as an example;

[0031] Figure 2b is a schematic diagram of the structure of a terminal shown as an example;

[0032] Figure 3 A schematic diagram of a power control method in an embodiment of the present application;

[0033] Figure 4 is a schematic diagram of an uplink signal shown as an example;

[0034] Figure 5 A schematic diagram of a power control method in an embodiment of the present application;

[0035] Figure 6 is a schematic diagram of the structure of a power control device shown as an example;

[0036] Figure 7 FIG. 1 is a schematic diagram of the structure of a power control device shown as an example. DETAILED DESCRIPTION

[0037] 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.

[0038] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0039] The terms "first" and "second" in the description and claims of the embodiments of the present application are used to distinguish different objects rather than to describe a specific order of objects. For example, a first target object and a second target object are used to distinguish different target objects rather than to describe a specific order of target objects.

[0040] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0041] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more than two. For example, multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.

[0042] Before describing the technical solution of the embodiment of the present application, the communication system of the embodiment of the present application is first described in conjunction with the accompanying drawings. Figure 1 , is a schematic diagram of a communication system provided in an embodiment of the present application. The communication system includes at least one base station and at least one terminal device, such as base station 1, base station 2 and base station 3. And UE11 (User Equipment, terminal) ~ UE13, UE21 ~ UE23 and UE31 ~ UE33. In this scenario, base station 1 includes cell 1, base station 2 includes cell 2, and base station 3 includes cell 3. UE11 ~ UE13 access base station 1, and UE11 ~ UE13 are within the coverage of cell 1. UE21 ~ UE23 access base station 2, and UE21 ~ UE23 are within the coverage of cell 2. UE31 ~ UE33 access base station 3, and UE31 ~ UE33 are within the coverage of cell 3.

[0043] The above-mentioned communication system can be used to support fourth generation (4G) access technology, such as long term evolution (LTE) access technology; or, the communication system can also support fifth generation (5G) access technology, such as new radio (NR) access technology; or, the communication system can also be used to support third generation (3G) access technology, such as universal mobile telecommunications system (UMTS) access technology; or the communication system can also be used to support second generation (2G) access technology, such as global system for mobile communications (GSM) access technology; or, the communication system can also be used to support a communication system of multiple wireless technologies, such as supporting LTE technology and NR technology. In addition, the communication system can also be applied to narrowband Internet of Things (NB-IoT), enhanced data rate for GSM Evolution (EDGE), wideband code division multiple access (WCDMA), code division multiple access 2000 (CDMA2000), time division-synchronization code division multiple access (TD-SCDMA), long term evolution (LTE) and future-oriented communication technologies.

[0044] as well as, Figure 1The base station in can be used to support terminal access, for example, it can be a base transceiver station (BTS) and a base station controller (BSC) in a 2G access technology communication system, a node B (node ​​B) and a radio network controller (RNC) in a 3G access technology communication system, an evolved node B (eNB) in a 4G access technology communication system, a next generation node B (gNB) in a 5G access technology communication system, a transmission reception point (TRP), a relay node, an access point (AP), etc. For the convenience of description, in all embodiments of the present application, the device that provides wireless communication functions for the terminal is collectively referred to as a network device or a base station.

[0045] Figure 1 The terminal in the description may be a device that provides voice or data connectivity to users, for example, it may also be called a mobile station, a subscriber unit, a station, terminal equipment (TE), etc. The terminal may be a cellular phone, a personal digital assistant (PDA), a wireless modem, a handheld device (handheld), a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer (pad), etc. With the development of wireless communication technology, devices that can access a communication system, communicate with the network side of a communication system, or communicate with other objects through a communication system can be terminals in the embodiments of the present application, for example, terminals and cars in intelligent transportation, household appliances in smart homes, power meter reading instruments, voltage monitoring instruments, environmental monitoring instruments in smart grids, video surveillance instruments in intelligent security networks, cash registers, etc. In the embodiments of the present application, the terminal can communicate with a base station, for example Figure 1 The terminals can communicate with the base stations in the network. Multiple terminals can also communicate with each other. The terminals can be static or mobile.

[0046] Figure 2a This is a schematic diagram of the structure of a base station. Figure 2a middle:

[0047] The base station includes at least one processor 101, at least one memory 102, at least one transceiver 103, at least one network interface 104 and one or more antennas 105. The processor 101, the memory 102, the transceiver 103 and the network interface 104 are connected, for example, through a bus. The antenna 105 is connected to the transceiver 103. The network interface 104 is used to connect the base station to other communication devices through a communication link. In the embodiment of the present application, the connection may include various interfaces, transmission lines or buses, etc., which are not limited in this embodiment.

[0048] The processor in the embodiment of the present application, such as the processor 101, may include at least one of the following types: a general-purpose central processing unit (CPU), a digital signal processor (DSP), a microprocessor, an application-specific integrated circuit (ASIC), a microcontroller unit (MCU), a field programmable gate array (FPGA), or an integrated circuit for implementing logical operations. For example, the processor 101 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. At least one processor 101 may be integrated in one chip or located on multiple different chips.

[0049] The memory in the embodiment of the present application, such as memory 102, may include at least one of the following types: read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, and may also be electrically erasable programmable read-only memory (EEPROM). In some scenarios, the memory may also be a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0050] The memory 102 may be independent and connected to the processor 101. Optionally, the memory 102 may also be integrated with the processor 101, for example, integrated into a chip. Among them, the memory 102 can store program codes for executing the technical solutions of the embodiments of the present application, and the execution is controlled by the processor 101. The various types of computer program codes executed may also be regarded as drivers of the processor 101. For example, the processor 101 is used to execute the computer program codes stored in the memory 102, so as to implement the technical solutions in the embodiments of the present application. Optionally, the memory 102 may also be connected to the processor 101 through an interface outside the chip.

[0051] The transceiver 103 can be used to support the reception or transmission of radio frequency signals between the access network device and the terminal, and the transceiver 103 can be connected to the antenna 105. The transceiver 103 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 105 can receive radio frequency signals, and the receiver Rx of the transceiver 103 is used to receive the radio frequency signal from the antenna, convert the radio frequency signal into a digital baseband signal or a digital intermediate frequency signal, and provide the digital baseband signal or the digital intermediate frequency signal to the processor 101, so that the processor 101 further processes the digital baseband signal or the digital intermediate frequency signal, such as demodulation and decoding. In addition, the transmitter Tx in the transceiver 103 is also used to receive a modulated digital baseband signal or a digital intermediate frequency signal from the processor 101, and convert the modulated digital baseband signal or the digital intermediate frequency signal into a radio frequency signal, and send the radio frequency signal through one or more antennas 105. Specifically, the receiver Rx can selectively perform one or more stages of down-mixing and analog-to-digital conversion processing on the RF signal to obtain a digital baseband signal or a digital intermediate frequency signal, and the order of the down-mixing and analog-to-digital conversion processing is adjustable. The transmitter Tx can selectively perform one or more stages of up-mixing and digital-to-analog conversion processing on the modulated digital baseband signal or digital intermediate frequency signal to obtain a RF signal, and the order of the up-mixing and digital-to-analog conversion processing is adjustable. The digital baseband signal and the digital intermediate frequency signal can be collectively referred to as a digital signal.

[0052] Figure 2b It is a schematic diagram of the structure of a terminal. In the specific implementation of the embodiment of the present application, the terminal may be a computer, a smart phone, a telephone, a cable TV set-top box, a digital subscriber line router, and the like. It should be noted that in actual applications, the number of base stations and terminals may be one or more. Figure 1 The number of base stations and terminals in the communication system shown is only an adaptive example, and this application does not limit this. Figure 2b middle:

[0053] The terminal includes at least one processor 201, at least one transceiver 202, and at least one memory 203. The processor 201, the memory 203, and the transceiver 202 are connected. Optionally, the terminal may further include an output device 204, an input device 205, and one or more antennas 206. The antenna 206 is connected to the transceiver 202, and the output device 204 and the input device 205 are connected to the processor 201.

[0054] The transceiver 202, the memory 203 and the antenna 206 can refer to Figure 2a to achieve similar functions.

[0055] The processor 201 may be a baseband processor or a CPU. The baseband processor and the CPU may be integrated together or separated.

[0056] The processor 201 can be used to implement various functions for the terminal, such as processing the communication protocol and communication data, or controlling the entire terminal device, executing the software program, and processing the data of the software program; or assisting in completing computing tasks, such as graphics and image processing or audio processing, etc.; or the processor 201 is used to implement one or more of the above functions.

[0057] The output device 204 communicates with the processor 201 and can display information in a variety of ways. For example, the output device 204 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. The input device 205 communicates with the processor 201 and can receive user input in a variety of ways. For example, the input device 205 can be a mouse, a keyboard, a touch screen device, or a sensor device.

[0058] The memory 203 may be independent and connected to the processor 201. Optionally, the memory 203 may also be integrated with the processor 201, for example, integrated into a chip. Among them, the memory 203 can store program codes for executing the technical solutions of the embodiments of the present application, and the execution is controlled by the processor 201. The various types of computer program codes executed may also be regarded as drivers of the processor 201. For example, the processor 201 is used to execute the computer program codes stored in the memory 203, thereby realizing the technical solutions in the embodiments of the present application. Optionally, the memory 203 may also be connected to the processor 201 through an interface outside the chip.

[0059] The following is a brief description of the background technology that may be involved:

[0060] 1) Downlink channel

[0061] In order to support uplink / downlink data transmission, the carrier needs to carry downlink control signaling so that the uplink / downlink data can be successfully received. Since the information carried by these signalings comes from the physical layer (also called the L1 layer) or the Medium Access Control (MAC) layer (also called the L2 layer), these signalings can also be called downlink physical layer control signaling or downlink MAC layer control signaling. The downlink physical layer control signaling or downlink MAC layer control signaling includes: physical control format indicator channel (PCFICH), physical hybrid automatic repeat reQuest (HARQ) indicator channel (PHICH) and physical downlink control channel (PDCCH).

[0062] The following is an introduction to the various control signaling in the control area:

[0063] PDCCH is mainly used to transmit downlink control information (DCI), and DCI includes at least one of the following: downlink scheduling information, uplink scheduling information, non-periodic CQI reporting request, multicast control channel (MCCH) information, uplink power control command, HARQ related information, Radio Network Temporary Identity (RNTI), etc.

[0064] The downlink scheduling information is used to instruct the UE to receive the physical downlink shared channel (PDSCH). The uplink scheduling information is used to instruct the UE to send the physical uplink shared channel (PUSCH). For example, the uplink scheduling information includes but is not limited to: scheduling information of PUSCH transmission resources, uplink power control information, time slot format indication information, etc.

[0065] Exemplarily, in a protocol (e.g., R15 38.212), DCI includes but is not limited to 8 categories (may also include more categories, which are not limited in this application), including: DCI 0_0, DCI 0_1, DCI 1_0, DCI 1_1, DCI 2_0, DCI 2_1, DCI 2_2, and DCI 2_3.

[0066] The embodiment of the present application mainly involves DCI 0_1, which is used to indicate the transmit power control (Transmit Power Control, TPC) instruction of PUSCH. It should be noted that the embodiment of the present application is only described by taking the uplink signal as PUSCH as an example. In other embodiments, the uplink signal can also be other types of signals, that is, the power control method in the embodiment of the present application can also be applied to other types of uplink signals. Correspondingly, the DCI for indicating the TPC instruction of the corresponding uplink signal can also be other types of DCI, such as DCI 2_2, etc., which can be set according to actual needs and is not limited in the present application.

[0067] 2) Inter-cell interference

[0068] Combine the following Figure 1 The concept of inter-cell interference is briefly described. For example, each terminal device can exchange data with the connected base station. In this example, each terminal device sends an uplink signal as an example. In actual application scenarios, each base station can send a signal (ie, a downlink signal) to at least one terminal device connected to the base station. Figure 1 As shown, in the process of receiving the uplink signal of UE13, base station 1 may receive the uplink signals of UE23 and UE31 (which may be called interference signals), that is, the uplink signal sent by UE23 to base station 2 may interfere with the uplink signal of UE13, and similarly, the uplink signal sent by UE31 to base station 3 may also interfere with the uplink signal of UE13. In other words, cell interference is formed between UE23, UE31 and UE13, so that the base station may not be able to correctly receive the uplink signal of UE13.

[0069] For example, to avoid cell interference, a common solution is to adjust the transmission power, such as increasing the transmission power (also called transmission power, not limited in this application) of the uplink signal of UE13, thereby improving spectrum efficiency, network energy efficiency, resource utilization efficiency, and ensuring network stability and reliability. However, with the increase in the number of mobile devices and the increase in data demand in 5G networks, inappropriate uplink power control may lead to the following problems:

[0070] (1) Interference problem: Excessive uplink power may cause interference between UEs, thus affecting communication quality and system performance;

[0071] (2) Energy consumption: Excessive power consumption will increase UE battery consumption and shorten device battery life;

[0072] (3) Resource utilization: Improper power allocation may lead to resource waste and reduce the overall efficiency and throughput of the 5G network.

[0073] (4) Network congestion: In a high-density network environment, if there is no effective power control strategy, the network may be congested, resulting in increased communication delays and reduced user experience. Therefore, a good uplink power control solution is the basis for ensuring the performance, stability and energy efficiency of 5G networks.

[0074] Currently, a related technical solution in LTE / NR has proposed a multi-cell base station uplink power control system.

[0075] The basic framework of uplink power control is defined by 3GPP 38.213, which is mainly based on the compensation power control (FPC) mechanism that combines fast closed-loop power control with open-loop power control for partial path loss compensation. The FPC mechanism is divided into three parts: open loop control (OLC), closed loop control (CLC), and other adjustment variables. OLC determines the initial power setting, which is used to set the basic operating point of the network. The purpose of CLC is to correct errors in the OLC configuration and adjust the transmit power around the basic operating point [1]. In other words, OLC can compensate for path loss and shadowing, while CLC can cope with fast fading. On a certain uplink carrier in a certain cell, the actual transmit power of the UE is calculated as follows (if the UE is configured with multiple uplink carriers, each carrier is power controlled according to the following formula):

[0076] P = min{maximum transmit power of UE on the uplink carrier, expected uplink transmit power}

[0077] =min{P CMAX , {open-loop power control}+{closed-loop power control}+{other adjustment variables}}

[0078] =min{P CMAX , {P 0 (j)+α(j)·P L (q)}+{f(l)}+{10lg(2 μ M)+Δ TF}}

[0079] Among them, P CMAXRefers to the maximum uplink transmit power that matches the UE power level, configured at the carrier level. Open-loop power control is power control related to the high-level parameter configuration of Radio Resource Control (RRC) and partial path loss compensation, including the base station's expected receive power P 0 (j), partial path loss compensation factor α(j), path loss estimation P L (q), where j is the index of the parameter set and the value range of α is {0, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1}. Its function is to allow the terminal to partially compensate for the path loss to reduce interference to adjacent cells and improve the transmission rate at the edge of the cell. However, the transmission power of the near-point users in the cell is reduced, which may lead to a decrease in the overall capacity of the cell.

[0080] Therefore, in order to balance the overall capacity of the cell and the transmission performance at the cell edge, a suitable path loss compensation factor can be selected between 0 and 1. In the actual system, α is 0.7 or 0.8, which can achieve a better balance between the overall capacity of the cell and the transmission performance at the cell edge. Therefore, it is adopted for the power control of the physical uplink shared channel (PUSCH) and the channel sounding reference signal (SRS). The physical uplink control channel (PUCCH) and the physical random access channel (PRACH) have low requirements on throughput and high requirements on the transmission performance of all UEs in the cell. Therefore, the protocol stipulates full path loss compensation, that is, only supports α value of 1. L (q) can be estimated through the downlink reference signal synchronization signal and PBCH block (Synchronization Signal and PBCH block, SSB) or CSI reference signal (CSIreference signal, CSI-RS), q is the index of the reference signal used to measure the path loss (each reference signal is associated with a specific q value), and one is selected from a set of path loss estimation values ​​maintained by the UE.

[0081] The closed-loop power control f(l) is a power control related to the historical transmission power. l is the index of the closed-loop power control adjustment amount. The base station can quickly adjust the transmission power of the UE through f(l). The adjustment is based on the UE's last transmission effect, and the adjustment information is indicated through DCI (Downlink control information). Among them, the UE's last transmission effect is reported to the base station through the power headroom report (Power Headroom Report, PHR). When the base station finds that the expected transmission power for the UE is too high at a certain time based on the power headroom reported by the UE, it can instruct the UE to reduce the transmission power at the next transmission through closed-loop adjustment information. The closed-loop adjustment information in the DCI is called the Transmit Power Control Command (TPC command), expressed as δ(l), and is determined according to the TPC Command mapping table defined in the protocol 3GPP 38.213.

[0082] Other adjustments are power adjustments related to frequency domain resource allocation and link adaptation. M is the number of resource blocks (RBs) allocated for this uplink transmission. When the subcarrier spacing (SCS) is 15kHz, μ = 0. If the SCS is doubled, the value of μ is also increased by 1, that is, the transmission power is also doubled accordingly, and so on. Δ TF It is the adjustment amount related to the uplink transmission format (Transport Format, TF). For example, in PUSCH power control, it indicates the power offset determined by the transmission modulation and coding scheme (modulation and coding scheme, MCS) level, and in PUCCH power control, it indicates the power offset determined by the PUCCH format. Generally, it is configured as Δ TF =0.

[0083] In uplink power control, the base station calculates the UE's TPC based on power control configuration parameters, UE feedback information, base station measurement information and other parameters, and sends it to the UE through the DCI in the PDCCH. The UE maps the TPC to the power adjustment amount and determines the final uplink transmit power based on its own maximum transmit power, path loss, RB number and transmission format.

[0084] In short, uplink power control is based on the fading characteristics of the wireless channel and the energy-saving requirements of the terminal. It controls the transmit power of the wireless terminal to ensure uplink transmission performance, and is expected to stabilize the base station reception signal and demodulation performance; reduce UE power consumption and reduce interference between neighboring areas within the system; and meet the cell throughput and edge user throughput requirements at the same time.

[0085] The embodiment of the present application provides a power control method, which can adjust the transmission power of the terminal device based on the actual service situation of the terminal user, thereby reducing resource waste and improving resource utilization, while achieving the effect of reducing multi-cell uplink channel interference problems and improving user experience and network performance.

[0086] Figure 3 Please refer to the flowchart of the power control method in the embodiment of the present application. Figure 3 , including but not limited to the following steps:

[0087] S301, receiving N uplink signals sent by a terminal device, where the N uplink signals are sent by the terminal device based on a first transmission power, and N is an integer greater than 1.

[0088] Exemplarily, when the terminal device needs to send service data, it sends an uplink signal to the base station it accesses according to the transmission power (e.g., the first transmission power) and other uplink scheduling information indicated by the base station. The uplink signal (e.g., PUSCH) includes but is not limited to: control information and data information.

[0089] like Figure 4 The diagram is a schematic diagram of an exemplary uplink signal, please refer to Figure 4 The uplink signal includes a control field and a data field (it may also include other fields, such as CRC, etc., which are not limited in this application). The control field is used to carry control information, and the data field is used to carry data information.

[0090] In the embodiment of the present application, data information includes but is not limited to valid data and / or padding data. Based on the indication of the base station, the terminal device can determine the number of symbols occupied by the data information. If the number of valid data to be sent by the terminal device is less than the number of symbols indicated by the base station, the terminal device fills the data field with invalid data (i.e., padding data). It should be noted that Figure 4 The valid data length and padding data length shown in are only illustrative examples and are not limited in this application.

[0091] Exemplarily, the control field includes, but is not limited to: a padding field, which is used to indicate whether the data field includes padding data. In one example, if the character in the padding field is "0", it is used to indicate that the data field does not include padding data. In another example, if the character in the padding field is "1", it is used to indicate that the data field includes padding data.

[0092] The base station receives the uplink signal sent by each terminal device. After the base station correctly receives the uplink signal (ie, can correctly parse the information carried by the control field and the data field), the base station reads the Padding field in the control field to determine whether the data field includes padding data.

[0093] Exemplarily, if the data field includes padding data, the base station may further determine whether the uplink signal meets a preset condition based on the padding data.

[0094] S302: Determine a second transmission power of an uplink signal of the terminal device based on a proportion of padding data in N uplink signals.

[0095] In an embodiment of the present application, the base station pre-sets a preset condition. The preset condition includes but is not limited to: among the uplink signals received N times in a row, the proportion of fill data of M uplink signals exceeds the threshold. Among them, the threshold, N value and M value can be set based on actual needs, and this application does not limit it. Among them, M is less than or equal to N.

[0096] Exemplarily, the proportion of padding data may optionally be a ratio of the amount of padding data to the amount of total data, wherein the total data is data information, and the total data is the sum of valid data and padding data.

[0097] For example, each time the base station receives an uplink signal from the terminal device, it detects whether it includes padding data. And when it is determined that padding data is included, the proportion of padding data is obtained. The base station starts recording from the first time it receives the uplink signal from the terminal device. The base station sets a detection window, and the length of the window is N (which can be set according to actual needs and is not limited in this application). The base station continues to receive uplink signals sent by the terminal device, and when the Nth uplink signal is received, it detects that the number of received uplink signals meets the detection window. The base station then counts whether the N uplink signals in the detection window include M (i.e., greater than or equal to) uplink signals whose proportion of padding data is greater than or equal to the threshold. If so, it is determined that the preset condition is met. If not, when the base station receives the next uplink signal from the terminal device, it slides the detection window (the number of sliding steps is 1) and repeats the above judgment on whether the preset condition is met, that is, the base station can perform the judgment of the preset condition based on the second uplink signal to the N+1th uplink signal from the terminal device.

[0098] In the embodiments of the present application, only sliding window detection is used as an example for explanation. In other embodiments, the base station may also set a detection period. For example, after the base station receives N uplink signals from the same terminal device, it performs a preset condition judgment on the N uplink signals. In the next period, the preset condition judgment is performed based on the next received N uplink signals.

[0099] Optionally, the preset condition may also set the M value to M consecutive uplink signals. That is, the determination that there are M consecutive uplink signals whose proportion of padding data exceeds a threshold satisfies the preset condition.

[0100] In an embodiment of the present application, if the N uplink signals received by the base station from the same terminal device meet the preset conditions, the base station sends a first power indication information to the terminal device to indicate the second transmission power (also referred to as the second transmission power). Among them, the second transmission power is less than the first transmission power. That is to say, in an embodiment of the present application, if the N uplink signals meet the preset conditions, the base station reduces the transmission power of the uplink signal of the terminal device. Correspondingly, the terminal device transmits the uplink signal at the second transmission power in response to the indication of the base station. In this way, the base station can determine the service situation of the terminal based on the proportion of the filling data in the uplink signal. When the proportion of the service data of the terminal is small, that is, the proportion of the filling data is large, the transmission power of the uplink signal of the terminal device can be reduced, thereby reducing the energy consumption of the terminal device, further reducing the battery consumption of the terminal device, and extending the battery life of the device. In addition, the rationality of the power allocation in the system can be improved to avoid resource waste and improve the overall efficiency and throughput of the network. In addition, the present application sets corresponding power adjustment strategies for the service conditions of different terminal devices, which can avoid network congestion, improve communication efficiency, and enhance the user experience of users on the network. In addition, by reducing the transmission power, the interference between cells can also be reduced, especially when the number of terminals is small and / or the terminal traffic is small, which can improve the system's anti-interference ability and improve the system's overall network performance, stability and energy efficiency.

[0101] In an embodiment of the present application, if the N uplink signals received by the base station from the same terminal device do not meet the preset conditions, the base station sends a second power indication information to the terminal device to indicate the third transmit power. The third transmit power is greater than or equal to the first transmit power. That is, in an embodiment of the present application, if the N uplink signals meet the preset conditions, the base station increases the transmit power of the uplink signal of the terminal device, or instructs the transmit power of the uplink signal of the terminal device to remain unchanged. Accordingly, the terminal device transmits the uplink signal at the third transmit power in response to the instruction of the base station.

[0102] S303: Send power indication information to the terminal device, where the power indication information is used to instruct the terminal device to send an uplink signal with a second transmission power.

[0103] Specifically, after the base station determines the transmit power (including the first transmit power or the second transmit power) of the uplink signal of the terminal device, it sends a PDCCH to the terminal device, and the DCI in the PDCCH includes transmit power information. The DCI information can optionally be a transmit power adjustment amplitude. For example, if the DCI indication is "0", that is, it is used to indicate that the adjustment amplitude of the transmit power is 0, it can also be understood as indicating that the transmit power remains unchanged. If the DCI indication is "-1", that is, it is used to indicate that the adjustment amplitude of the transmit power is -1, it can also be understood as indicating to reduce the transmit power. If the DCI indication is "1", that is, it is used to indicate that the adjustment amplitude of the transmit power is 1, it can also be understood as indicating to increase the transmit power.

[0104] In a possible implementation, the adjustment range indicated by the DCI may include multiple gears. The base station may pre-set the corresponding relationship between the adjustment condition and the adjustment range. Among them, the adjustment condition may include but is not limited to: the distance between the terminal device and the base station, etc., which can be set according to actual needs and is not limited in this application.

[0105] For example, the base station can obtain the transmission distance between the base station and the terminal device based on the uplink signal received from the terminal device (the acquisition method can refer to the existing technology, which is not limited in this application). The adjustment condition can set the corresponding relationship between different distances and adjustment amplitudes. For example, the greater the distance, the greater the adjustment amplitude can be, and the smaller the distance, the smaller the adjustment amplitude can be. It can be set according to actual needs and is not limited in this application.

[0106] For example, the base station determines that the uplink signals of terminal device A and terminal device B meet the preset conditions, and the transmission power of terminal device A and terminal device B needs to be reduced. The base station obtains that the distance between terminal device A and the base station is distance A, and the distance between terminal device B and the base station is distance B, where distance A is smaller than distance B. Based on the adjustment condition and the adjustment amplitude, the base station can determine that the adjustment amplitude corresponding to distance A is X, and the adjustment amplitude corresponding to distance B is Y, where X is smaller than Y. In other words, the decrease in the transmission power of the uplink signal of terminal device B is greater than the decrease in the transmission power of the uplink signal of terminal device A. That is, when it is determined that the transmission power of the terminal device needs to be adjusted according to the business situation (i.e., the proportion of filler data), the adjustment amplitude can be further determined based on other conditions, thereby providing a more accurate power adjustment method.

[0107] In the embodiment of the present application, each step performed by the base station on the terminal device refers to the steps performed on the terminal device connected to the base station. Figure 1For example, base station 1 receives an uplink interference signal from UE23. Based on the uplink interference signal from UE23, base station 1 can determine that the uplink signal is an interference signal, that is, UE23 is not a terminal device in this cell, and base station 1 will not perform preset condition judgment and other operations on UE23. That is to say, in an embodiment of the present application, the base station determines the transmission power adjustment strategy for each terminal device based on the service situation in the cell (that is, at least one cell of the base station), which can also be understood as the terminal device accessing the base station. The adjustment strategy includes but is not limited to: increase, decrease and remain unchanged. Furthermore, when the base station detects that the uplink signal of the terminal device meets the preset conditions, that is, the proportion of filler data in the service data transmitted by the terminal device is relatively large, the base station can reduce the transmission power of this type of terminal device to reduce the transmission power of such terminal devices with large resource waste (that is, the proportion of filler data is relatively large), which can effectively reduce the interference of such terminal devices to terminal devices in other cells (that is, inter-cell interference). For example, still referring to Figure 1 , assuming that base station 2 detects that the uplink signal of UE23 meets the preset condition, base station 2 reduces the transmit power of UE23. Correspondingly, after the transmit power of UE23 is reduced, base station 1 may no longer receive the uplink interference signal of UE23, thereby eliminating the inter-cell interference of UE23 to the terminal device in base station 1.

[0108] Several specific embodiments are used below to explain in detail the technical solution of the above method embodiment.

[0109] Scene 1

[0110] Combination Figure 3 ,like Figure 5 FIG. 1 is a flow chart of a power control method in an embodiment of the present application. Figure 5 middle:

[0111] S501: A base station receives an uplink signal sent by a UE.

[0112] For example, a system (e.g. Figure 1 Any UE in the system shown in the figure sends an uplink signal to the accessed base station. The transmission power of the uplink signal is the first transmission power. The uplink signal includes control information and data information. The data information may include padding data (the concept can be referred to above) or may not include padding data. The terminal device may determine whether the data information includes padding data based on the service situation and the uplink scheduling configuration information sent by the base station.

[0113] Exemplarily, the base station receives an uplink signal sent by the UE. Optionally, the base station may be a base station accessed by the UE or another base station. Figure 1As shown, the UE may be UE23, and the base station may be base station 1. That is, base station 1 receives the uplink signal of UE23, and the uplink signal may also be understood as an interference signal. Of course, the UE may also be UE13, and the base station may be base station 1, that is, base station 1 receives the uplink signal of UE13. In other words, the base station may be any base station in the system, and the UE may be a UE in the cell of the base station or in the cell of another base station, which is not limited in this application.

[0114] S502: The base station performs sliding window detection to see whether a preset condition is met.

[0115] Exemplarily, after the base station correctly receives the uplink signal, the base station slides the detection window (the concept can be referred to above and will not be repeated here), and the length of the detection window is N. Assume that the detection window includes N uplink signals from the UE. It should be noted that, unless otherwise specified, the UE described in this embodiment refers to the same UE.

[0116] In the embodiment of the present application, as described above, the base station may receive uplink signals from terminal devices in the cell and in cells other than the base station. However, the base station will only correctly receive and parse uplink signals from terminal devices in the cell, that is, the base station will not perform S502 to S505 on uplink signals from terminal devices in cells other than the cell.

[0117] Exemplarily, the base station may save an uplink signal reception list to record the uplink signal reception status of each UE. For example, the base station receives an uplink signal, parses the uplink signal, and obtains that the sender of the uplink signal is the first UE. The base station may query the identification information corresponding to the UE from the uplink signal reception list and obtain the corresponding uplink signal reception status. The uplink signal reception status may record the number of uplink signals received by the UE, as well as information such as the proportion of padding data corresponding to each received uplink signal.

[0118] Exemplarily, the base station determines whether the N uplink signals from the UE within the detection window meet the preset conditions. Specifically, the identification of a single uplink signal is taken as an example for explanation. After receiving the uplink signal, the base station identifies the padding field. Based on the padding field, it is determined whether the data field of the uplink field includes padding data. If padding data is not included, the padding data ratio is 0. The base station records the padding data ratio result in the uplink signal reception list. If padding data is included, the base station obtains the padding data ratio (the acquisition method can refer to the above) and records it in the uplink signal reception list. Each time the base station receives an uplink signal from the UE, it obtains the padding data ratio and records it in the uplink signal reception list. And a sliding window is performed in the recorded uplink signal of the UE to detect whether the uplink signal of the UE meets the preset conditions.

[0119] In one example, if the preset condition is met, S503 is executed.

[0120] In another example, if the condition is not met, S504 is executed.

[0121] S503: The base station determines to reduce the transmit power of the UE.

[0122] Exemplarily, if the base station determines that the uplink signal of the UE meets the preset condition, it can be determined that the transmit power of the UE needs to be reduced. The reduction range can be based on the distance between the base station and the UE, or based on other conditions, which are not limited in this application.

[0123] S504: The base station determines whether to increase the transmit power of the UE or keep it unchanged.

[0124] Exemplarily, the base station determines that the uplink signal of the UE does not meet the preset condition, and can determine that the transmit power of the UE needs to be increased, or the transmit power of the UE needs to be kept unchanged. The base station chooses to increase the transmit power (and the increase amplitude) or keep it unchanged, which can also be based on the distance between the UE and the base station or other conditions, which are not limited in this application.

[0125] S505: The base station sends a downlink signal to the UE.

[0126] Exemplarily, the base station determines the transmit power of the uplink signal of the UE and other information (such as other uplink scheduling information, etc.), and the base station sends a PDCCH to the UE. The DCI in the PDCCH includes TPC, which is used to indicate the transmit power of the uplink signal sent by the terminal next time. Among them, if the base station determines to increase the transmit power of the UE, the adjustment amplitude value of the transmit power indicated by the DCI is greater than 0. If the base station determines to reduce the transmit power of the UE, the adjustment amplitude value of the transmit power indicated by the DCI is less than 0. If the base station determines that the transmit power of the UE remains unchanged, the adjustment amplitude value of the transmit power indicated by the DCI is 0. Of course, the above-mentioned DCI indication method is only an illustrative example. In other embodiments, it can also be set according to actual needs, and this application is not limited.

[0127] Exemplarily, the UE will send an uplink signal based on the transmit power indicated by the base station. For example, the power corresponding to the uplink signal sent by the UE next time is the second transmit power. The second transmit power is optionally less than the first transmit power.

[0128] In this example, only a single UE is used as an example for illustration. In actual applications, each base station performs the above steps for all UEs corresponding to the received uplink signals, so as to generate a corresponding transmit power adjustment strategy for each corresponding UE that receives the uplink signal. The adjustment strategy includes but is not limited to: increasing the transmit power, reducing the transmit power or keeping it unchanged, thereby achieving differentiated power control for different types of services, further improving network performance and user experience.

[0129] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of the interaction between various network elements. It can be understood that in order to realize the above functions, the power control device includes hardware structures and / or software modules corresponding to the execution of various functions. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in this document, the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0130] The embodiment of the present application can divide the functional modules of the power control device according to the above method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0131] In the case where each functional module is divided into each functional module according to each function, Figure 6 A possible structural diagram of the power control device 600 involved in the above embodiment is shown. Figure 6 As shown, the power control device may include: a receiving module 601 and a configuration module 602. The receiving module 601 is used to receive N uplink signals sent by the terminal device, where the N uplink signals are sent by the terminal device based on the first transmission power, and N is an integer greater than 1. The configuration module 602 is used to determine the second transmission power of the uplink signal of the terminal device based on the proportion of padding data in the N uplink signals. The sending module 603 is used to send power indication information to the terminal device, where the power indication information is used to instruct the terminal device to send the uplink signal at the second transmission power.

[0132] In one possible implementation, if the proportion of fill data in the N uplink signals meets a preset condition, the second transmission power is less than the first transmission power; the preset condition is used to indicate that the proportion of fill data in the N uplink signals exceeds a threshold.

[0133] In a possible implementation, if the proportion of padding data in the N uplink signals does not meet a preset condition, the second transmission power is greater than or equal to the first transmission power.

[0134] In one possible implementation, a single uplink signal includes a fill data field, the fill data field includes fill data indication information, the fill data indication information is used to indicate whether the single uplink signal includes fill data, and the configuration module 602 is specifically used to: determine whether the single uplink signal includes fill data based on the fill data indication information in the fill data field of the single uplink signal; if the fill data indication information indicates that the single uplink signal does not include fill data, determine that the fill data ratio of the single uplink signal is 0; if the fill data indication information indicates that the single uplink signal includes fill data, obtain the fill data ratio of the single uplink signal.

[0135] In a possible implementation manner, the preset condition includes: the number of uplink signals in which the proportion of padding data exceeds a threshold among the N uplink signals is greater than a preset number.

[0136] In a possible implementation, the filling data ratio is a ratio of the filling data to the total data in the uplink signal, and the total data includes the filling data and the valid data.

[0137] In a possible implementation manner, the second power indication information is carried in a downlink control information DCI field of a physical downlink control channel PDCCH.

[0138] In another example, Figure 7 A schematic block diagram of a power control device 700 according to an embodiment of the present application is shown. The power control device 700 may include: a processor 701 and a transceiver / transceiver pin 702, and optionally, a memory 703. The processor 701 may be used to execute the steps executed by the power control device in each method of the aforementioned embodiment, and control the receiving pin to receive a signal, and control the transmitting pin to send a signal.

[0139] The components of the power control device 700 are coupled together via a bus 704, wherein the bus system 704 includes a power bus, a control bus, and a status signal bus in addition to a data bus. However, for the sake of clarity, various buses are labeled as the bus system 704 in the figure.

[0140] Optionally, the memory 703 may be used to store instructions in the aforementioned method embodiment.

[0141] It should be understood that the power control device 700 according to an embodiment of the present application may correspond to the base station in each method of the aforementioned embodiment, and the above-mentioned and other management operations and / or functions of each element in the power control device 700 are respectively for implementing the corresponding steps of the aforementioned methods. For the sake of brevity, they will not be repeated here.

[0142] Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, and will not be repeated here.

[0143] Based on the same technical concept, an embodiment of the present application also provides a computer-readable storage medium, which stores a computer program. The computer program includes at least one section of code, and the at least one section of code can be executed by a power control device to control the power control device to implement the above method embodiment.

[0144] Based on the same technical concept, an embodiment of the present application also provides a computer program, which is used to implement the above method embodiment when executed by a power control device.

[0145] The program may be stored in whole or in part on a storage medium packaged together with the processor, or may be stored in whole or in part on a memory not packaged together with the processor.

[0146] Based on the same technical concept, the embodiment of the present application further provides a processor, which is used to implement the above method embodiment. The above processor can be a chip.

[0147] The steps of the method or algorithm described in conjunction with the disclosure of the embodiments of the present application can be implemented in a hardware manner, or can be implemented by a processor executing a software instruction. The software instruction can be composed of corresponding software modules, and the software module can be stored in a random access memory (Random Access Memory, RAM), a flash memory, a read-only memory (Read Only Memory, ROM), an erasable programmable read-only memory (Erasable Programmable ROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), a register, a hard disk, a mobile hard disk, a read-only compact disk (CD-ROM) or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and can write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC.

[0148] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented with hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that a general or special-purpose computer can access.

[0149] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A power control method, characterized in that: include: Receiving N uplink signals sent by a terminal device, where the N uplink signals are sent by the terminal device based on a first transmission power, and N is an integer greater than 1; Determine a second transmission power of the uplink signal of the terminal device based on the proportion of padding data in the N uplink signals; Power indication information is sent to the terminal device, where the power indication information is used to instruct the terminal device to send an uplink signal at the second transmission power.

2. The method according to claim 1, characterized in that If the proportion of the filling data in the N uplink signals meets a preset condition, the second transmission power is less than the first transmission power; the preset condition is used to indicate that the proportion of the filling data in the N uplink signals exceeds a threshold.

3. The method according to claim 2, characterized in that If the proportion of padding data in the N uplink signals does not satisfy the preset condition, the second transmission power is greater than or equal to the first transmission power.

4. The method according to any one of claims 1 to 3, characterized in that: A single uplink signal includes a padding data field, the padding data field includes padding data indication information, the padding data indication information is used to indicate whether the single uplink signal includes padding data, and determining the second transmission power of the uplink signal of the terminal device based on the proportion of padding data in the N uplink signals, includes: Determining whether the single uplink signal includes padding data based on padding data indication information in a padding data field of the single uplink signal; If the padding data indication information indicates that the single uplink signal does not include padding data, determining that the padding data ratio of the single uplink signal is 0; If the filling data indication information indicates that the single uplink signal includes filling data, the filling data ratio of the single uplink signal is obtained.

5. The method according to claim 2 or 3, characterized in that: The preset conditions include: The number of uplink signals in which the proportion of padding data exceeds the threshold among the N uplink signals is greater than a preset number.

6. The method according to any one of claims 1 to 5, characterized in that: The filling data ratio is the ratio of the filling data to the total data in a single uplink signal, and the total data includes the filling data and the valid data.

7. The method according to any one of claims 1 to 6, characterized in that: The power indication information is carried in the downlink control information DCI field of the physical downlink control channel PDCCH.

8. A power control device, characterized in that: include: A receiving module, used to receive N uplink signals sent by a terminal device, where the N uplink signals are sent by the terminal device based on a first transmission power, and N is an integer greater than 1; A configuration module, configured to determine a second transmission power of the uplink signal of the terminal device based on a proportion of padding data in the N uplink signals; A sending module is used to send power indication information to the terminal device, and the power indication information is used to instruct the terminal device to send an uplink signal at the second transmission power.

9. The device according to claim 8, characterized in that If the proportion of the filling data in the N uplink signals meets a preset condition, the second transmission power is less than the first transmission power; the preset condition is used to indicate that the proportion of the filling data in the N uplink signals exceeds a threshold.

10. The device according to claim 9, characterized in that If the proportion of padding data in the N uplink signals does not satisfy the preset condition, the second transmission power is greater than or equal to the first transmission power.

11. The device according to any one of claims 8 to 10, characterized in that The single uplink signal includes a padding data field, the padding data field includes padding data indication information, the padding data indication information is used to indicate whether the single uplink signal includes padding data, and the configuration module is specifically used to: Determining whether the single uplink signal includes padding data based on padding data indication information in a padding data field of the single uplink signal; If the padding data indication information indicates that the single uplink signal does not include padding data, determining that the padding data ratio of the single uplink signal is 0; If the filling data indication information indicates that the single uplink signal includes filling data, the filling data ratio of the single uplink signal is obtained.

12. The device according to claim 8 or 9, characterized in that The preset conditions include: The number of uplink signals in which the proportion of padding data exceeds the threshold among the N uplink signals is greater than a preset number.

13. The device according to any one of claims 8 to 12, characterized in that The filling data ratio is the ratio of the filling data to the total data in the uplink signal, and the total data includes the filling data and the valid data.

14. The device according to any one of claims 8 to 13, characterized in that The power indication information is carried in the downlink control information DCI field of the physical downlink control channel PDCCH.

15. A computer storage medium, characterized in that The method comprises computer instructions, and when the computer instructions are executed on an electronic device, the electronic device executes the method according to any one of claims 1 to 7.

16. A computer program product, characterized in that When the computer program product is executed on a computer, the computer is enabled to execute the method according to any one of claims 1 to 7.

17. A chip, characterized in that: It comprises one or more interface circuits and one or more processors; the interface circuit is used to receive a signal from a memory of an electronic device and send the signal to the processor, wherein the signal includes a computer instruction stored in the memory; when the processor executes the computer instruction, the electronic device executes the method described in any one of claims 1 to 7.

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