WO2021088048A1 - 用于功率回退的方法、终端设备以及网络设备 - Google Patents

用于功率回退的方法、终端设备以及网络设备 Download PDF

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Publication number
WO2021088048A1
WO2021088048A1 PCT/CN2019/116844 CN2019116844W WO2021088048A1 WO 2021088048 A1 WO2021088048 A1 WO 2021088048A1 CN 2019116844 W CN2019116844 W CN 2019116844W WO 2021088048 A1 WO2021088048 A1 WO 2021088048A1
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WIPO (PCT)
Prior art keywords
terminal device
prompt information
preset
threshold
parameter value
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PCT/CN2019/116844
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English (en)
French (fr)
Inventor
邢金强
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2019/116844 priority Critical patent/WO2021088048A1/zh
Priority to CN201980100355.9A priority patent/CN114402664B/zh
Publication of WO2021088048A1 publication Critical patent/WO2021088048A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • This application relates to the field of communication technology, and in particular to a method, terminal device and network device for power fallback.
  • the terminal device In the communication system, if the average radiation value of the terminal device in a certain period of time exceeds the radiation index stipulated by the regulations, the terminal device will perform a power back-off to reduce the terminal's transmitting power, thereby avoiding the terminal device from causing harm to the human body through electromagnetic radiation.
  • the power backoff value of the terminal device is greater than the power backoff threshold that the network device can withstand, the quality of the wireless link between the network device and the terminal device deteriorates instantly, causing the network device to fail to receive the uplink signal from the terminal device , Which in turn causes the wireless link to fail. Based on this, how to avoid the wireless link failure caused by the instantaneous deterioration of the wireless link quality is currently a technical problem that needs to be solved urgently.
  • the embodiments of the present application provide methods, terminal devices, and network devices for power fallback, which can predict the power fallback events that may occur in the future, and then prompt the network device so that the network device can take measures to avoid wireless link failure .
  • an embodiment of the present application provides a method for power back-off, including:
  • first parameter value is greater than or equal to the preset parameter threshold, generating first prompt information, where the first prompt information is used to instruct the terminal device to trigger a power backoff event;
  • an embodiment of the present application provides a method for power fallback, including:
  • Receive first prompt information sent by a terminal device where the first prompt information is used to instruct the terminal device to trigger a power backoff event, and the first prompt information is that the terminal device is judging that the first parameter value is greater than or equal to the preset value.
  • the first parameter value is the first parameter value of the terminal device in the first time window determined by the terminal device;
  • the third parameter value of the terminal device is decreased.
  • an embodiment of the present application provides a terminal device, which has a function of implementing the method design described in the first aspect.
  • the function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the terminal device includes a processor, and the processor is configured to support the terminal device to perform the corresponding function in the foregoing method.
  • the terminal device may also include a communication interface, and the communication interface is used to support communication between the terminal device and the network device.
  • the terminal device may further include a memory, which is configured to be coupled with the processor and stores necessary program instructions and data of the terminal device.
  • an embodiment of the present application provides a network device that has the function of implementing the method design described in the second aspect.
  • the function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the network device includes a processor, and the processor is configured to support the network device to perform corresponding functions in the foregoing method.
  • the network device may also include a transceiver, and the transceiver is used to support communication between the network device and the terminal device.
  • the network device may also include a memory, which is used for coupling with the processor and stores program instructions and data necessary for the network device.
  • an embodiment of the present application provides a terminal device, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and are configured by The processor executes, and the program includes instructions for executing the steps in any method in the first aspect of the embodiments of the present application.
  • an embodiment of the present application provides a network device, including a processor, a memory, a transceiver, and one or more programs, wherein the one or more programs are stored in the memory and are configured by The processor executes, and the program includes instructions for executing the steps in any method in the second aspect of the embodiments of the present application.
  • an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program enables the computer to execute the For example, part or all of the steps described in any method of the first aspect.
  • an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the For example, part or all of the steps described in any method of the second aspect.
  • embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute Part or all of the steps described in any method in the first aspect of the application embodiment.
  • the computer program product may be a software installation package.
  • an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute Part or all of the steps described in any method in the second aspect of the application embodiment.
  • the computer program product may be a software installation package.
  • the terminal device can determine the first parameter value of the terminal device in the first time window. If the first parameter value is greater than or equal to the preset parameter threshold, the terminal device predicts that it may happen in the future. The power back-off event is further generated, and the first notification information is used to instruct the terminal device to trigger the power back-off event. Then the terminal device sends the first prompt information to the network device so that the network device can take measures to avoid wireless link failure.
  • FIG. 1 is a system architecture diagram of a communication system provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of power back-off in a traditional communication system provided by an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a method for power fallback provided by an embodiment of the present application
  • 4A is a schematic diagram of a time window provided by an embodiment of the present application.
  • FIG. 4B is a schematic diagram of another time window provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of another method for power back-off provided by an embodiment of the present application.
  • Fig. 6 is a schematic diagram of a radiation amount provided by an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of another method for power fallback provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of the proportion of uplink transmission time according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of another terminal device provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • Fig. 12 is a schematic structural diagram of another network device provided by an embodiment of the present application.
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • Time Division Duplex Time Division Duplex
  • TDD Time Division Duplex
  • LTE-A Long Term Evolution
  • NR New Radio
  • NR NR system evolution system
  • LTE-based access to unlicensed on unlicensed frequency bands spectrum LTE-U
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Fidelity
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • the communication system 100 applied in the embodiment of the present application is shown in FIG. 1.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.
  • the network device 110 may be an evolved base station (Evolutional Node B, eNB, or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or
  • the network equipment can be a mobile switching center, a relay station, an access point, an in-vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network side device in a 5G network, or a network device in a future evolving communication system, etc.
  • the communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110.
  • the terminal device 120 and the network device 110 may be connected wirelessly or wiredly.
  • the terminal device may be referred to as a "wireless communication terminal", a “wireless terminal” or a "mobile terminal”.
  • Examples of mobile terminals include, but are not limited to, satellite or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio telephone transceivers Electronic device.
  • Terminal equipment may refer to an access terminal, user equipment (UE), user unit, user station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal, wireless communication equipment, user agent, or user device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in future evolving communication systems, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • D2D communication may be performed between the terminal device 120 and other terminal devices or user equipment.
  • the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.
  • NR New Radio
  • FIG. 1 exemplarily shows a communication system 100, which includes one network device 110 and two terminal devices 120.
  • the communication system 100 may include multiple network devices, and the coverage of each network device may include one or more terminal devices, which is not limited in the embodiment of the present application.
  • the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • the standard In order to prevent terminal equipment (such as mobile phones and other electromagnetic radiation equipment) from harming the human body, the standard has strict index requirements on the index parameters of electromagnetic radiation, and the terminal equipment cannot exceed the standard radiation amount.
  • the electromagnetic wave absorption rate (Specific Absorption Rate, SAR) is an index parameter that measures the electromagnetic radiation intensity of the terminal equipment to the human body.
  • SAR indicator is the average measured value of the terminal device in a certain period of time. The higher the transmission power of the terminal device, the higher the SAR, and the longer the uplink transmission time of the terminal device, the higher the SAR.
  • the Maximum Permissible Emission is an index parameter that measures the electromagnetic radiation intensity of the terminal equipment to the human body.
  • the MPE index is the average measured value of the power density of the terminal equipment in a certain period of time and within a certain area. The higher the transmitting power of the terminal equipment, the higher the MPE.
  • the terminal device will use a power back-off method to reduce the transmission power of the terminal device to reduce the index parameter of the terminal device.
  • Power back-off technology refers to the input power of the power amplifier of the terminal equipment from the 1dB compression point (equivalent to the critical point of the linear and nonlinear regions of the amplifier) back 6-10 decibels, working at much less than 1dB compression At the level of the point, the power amplifier is moved away from the saturation region and enters the linear operating region, thereby improving the third-order intermodulation coefficient of the power amplifier.
  • the terminal device calculates the total radiation amount of the terminal device in the time window w at time t1. If the total radiation amount exceeds the standard radiation specified by the regulations Then, the terminal device is triggered to perform power back-off. Through the power back-off method, the total radiation amount of the terminal device in the next time window of the relative time window w can be reduced. However, when the power backoff value exceeds a certain value, the network device will not be able to receive the uplink signal sent by the terminal device, resulting in the failure of the uplink to be maintained and a wireless link failure.
  • FIG. 3 is a method for power back-off provided by an embodiment of the present application, which is applied to the above example communication system, and the method includes:
  • the terminal device determines a first parameter value of the terminal device in a first time window.
  • the terminal device can make statistics of the first parameter value of the terminal device in the first time window. For example, if the current moment is within the first time window, the terminal device may collect statistics of the first parameter value of the terminal device in the first time window.
  • the first parameter value may include any one of the following three parameters:
  • the total amount of radiation is the total radiation amount of the terminal device in the first time window from the start time of the first time window to the current time.
  • the length of each time window, the start time of the time window, or the end time of the time window may be pre-configured or agreed upon by a protocol, or may be sent by the network device to the terminal device through instruction information.
  • the lengths of different time windows may be the same or different, and are not specifically limited by the embodiments of the present application. Taking the time window schematic diagram shown in Figure 4A as an example, there are time windows T1 and time windows T2. Assume that the start time of time window T1 is 4s, the end time of time window T1 is 8s, and the start time of time window T2 is 7s.
  • the end time of the time window T2 is 15s. If the current time is 6s, then the first time window is T1, and the terminal device can count the total radiation amount of the terminal device in the period of 4s to 6s, and determine the total radiation amount as the radiation of the terminal device in the first time window The sum of the amounts. If the current time is 8s, then the first time window is T1, and the terminal device can count the total radiation amount of the terminal device in the time period from 4s to 8s (that is, the entire first time window), and determine the total radiation amount as the terminal device The total amount of radiation in the first time window.
  • the total amount of radiation can be obtained through the radio frequency transmission power of the terminal equipment and the antenna gain.
  • the transmitting power of the terminal device is P and the antenna gain of the terminal device is A (A can be the gain in a certain direction)
  • the total radiation amount can be considered as P+A.
  • the second time window may be the next time window of the first time window.
  • the end time of the first time window is the start time of the second time window.
  • the second time window and the first time window partially overlap.
  • the start time of the second time window is located in the first time window, and the end time of the first time window is located in the second time window.
  • the start time of the time window T1 is 4s, and the end time of the time window T1 is 8s; the start time of the time window T2 is 7s, and the end time of the time window T2 is 15s.
  • the overlapping part of the first time window and the second time window is a time period of 7s to 8s.
  • the average amount of radiation is the ratio between the total radiation dose and the length of the first time window. Take the time window diagram shown in Figure 4A as an example, if the current time is 6s, then the first time window is T1, and the length of the first time window is 4s, that is, the end time of the first time window and the start of the first time window.
  • the terminal device can count the total radiation amount of the terminal device in the period of 4s to 6s, and determine the ratio between the total radiation amount and the length of the first time window as the terminal device in the first time window. The average amount of radiation in the time window.
  • the terminal device can count the total radiation amount of the terminal device from 4s to 8s, and determine the ratio between the total radiation amount and the length of the first time window Is the average radiation of the terminal device in the first time window.
  • the proportion of the average uplink transmission time is the average uplink transmission time proportion of the terminal device sending the uplink signal in the first time window.
  • the terminal device If the first parameter value is greater than or equal to the preset parameter threshold, the terminal device generates first prompt information, where the first prompt information is used to instruct the terminal device to trigger a power backoff event.
  • the terminal device can compare the first parameter value with a preset parameter threshold. When the first parameter value is greater than or equal to the preset parameter threshold, the terminal device estimates that a power backoff event may occur in the future, Furthermore, the terminal device can generate the first prompt information.
  • the terminal device may generate first prompt information for instructing the terminal device to trigger a power backoff event, and send the first prompt information to the network device.
  • the network device can determine that a power back-off event may occur in the terminal device in the future, and then search for the power back-off value of the terminal device in the memory of the network device.
  • the power backoff value of the terminal device is fixed, and the terminal device can report the power backoff value of the terminal device to the network device during initial access.
  • the terminal device After the terminal device reports the power back-off value to the network device, if the terminal device determines that a power back-off event may occur in the future, the terminal device may not need to report the power back-off value, but send to the network device to instruct the terminal device to trigger power
  • the first prompt information of the fallback event such as power fallback alarm information.
  • the first prompt information includes a power backoff value of the terminal device, and the power backoff value is used to instruct the terminal device to trigger a power backoff event.
  • the first prompt information carries the power backoff value of the terminal device, and the first prompt information is used to instruct the terminal device to trigger the power backoff event.
  • the terminal device sends the first prompt information that includes the power backoff value of the terminal device to the network device, or the terminal device sends the first prompt information that carries the power backoff value of the terminal device to the network device.
  • the network device can determine that a power back-off event may occur in the terminal device in the future, and then obtain the power back-off value included in the first prompt information.
  • the power backoff value of the terminal device is uncertain, for example, is directly related to the currently used beam (beam)
  • the terminal device can combine the first prompt information with the power backoff value that the terminal device will use in the future It is sent to the network device, and the network device determines that the terminal device may have a power backoff event in the future according to the first prompt information, and then determines whether the power backoff value sent by the terminal device is greater than the preset power backoff threshold.
  • the terminal device may only send the power backoff value that the terminal device will use in the future to the network device.
  • the network device receives the power backoff value, it can determine that the terminal device may have a power backoff event in the future, and then determine the terminal device Whether the transmitted power back-off value is greater than the preset power back-off threshold.
  • the preset parameter threshold may be pre-configured or agreed upon by a protocol, or may be sent by the network device to the terminal device through instruction information.
  • the preset parameter threshold is the preset radiation dose threshold.
  • the terminal device determines the total radiation dose of the terminal device in the first time window, it can determine whether the determined total radiation dose is greater than or equal to the preset radiation dose threshold.
  • the terminal device can generate the first prompt message; when it is determined that the total radiation dose is less than the preset radiation dose threshold, the terminal device can detect in real time the terminal device in the first time window from the start of the first time window to the current The total amount of radiation at the moment.
  • the preset radiation dose threshold is determined based on the standard radiation dose, and the preset radiation dose threshold is less than or equal to the standard radiation dose.
  • the standard In order to prevent terminal equipment (such as mobile phones and other electromagnetic radiation equipment) from harming the human body, the standard has strict index requirements on the index parameters of electromagnetic radiation, and the terminal equipment cannot exceed the standard radiation amount.
  • the difference between the preset radiation dose threshold and the standard radiation dose may be less than the preset radiation threshold, or the ratio between the preset radiation dose threshold and the standard radiation dose may be less than the preset ratio threshold.
  • the preset parameter threshold is the preset average radiation dose.
  • the terminal device determines the average radiation dose of the terminal device in the first time window, it can determine whether the determined average radiation dose is greater than or equal to the preset average radiation dose, and when the determined average radiation dose is greater than or equal to the preset average radiation dose
  • the terminal device can generate the first prompt message; when it is determined that the average radiation dose is less than the preset average radiation dose threshold, the terminal device can detect in real time the terminal device from the start time of the first time window within the first time window The average amount of radiation up to the current moment.
  • the preset average radiation dose threshold is determined based on the ratio between the standard radiation dose and the length of the first time window, and the preset average radiation dose threshold is less than or equal to the difference between the standard radiation dose and the length of the first time window ratio.
  • the difference between the preset average radiation dose threshold and the ratio may be less than the preset radiation threshold, or the ratio between the preset average radiation threshold and the ratio may be less than the preset ratio threshold.
  • the total or average radiation amount when the operating frequency of the terminal device is greater than the preset frequency threshold, the total or average radiation amount may be MPE. When the operating frequency of the terminal device is less than or equal to the preset frequency threshold, the total or average radiation amount may be SAR.
  • the preset frequency threshold may be 6 GHz.
  • the preset parameter threshold may be the preset transmission time proportion threshold.
  • the terminal device sends the first prompt information to the network device.
  • the network device obtains the power backoff value of the terminal device according to the first prompt information.
  • the power backoff value of the terminal device is fixed.
  • the terminal device can report the power backoff value of the terminal device to the network device during initial access, and the network device stores the power backoff value of the terminal device To the storage of the network device. On this basis, after receiving the first prompt information, the network device can look up the power backoff value of the terminal device in the memory of the network device.
  • the network device may obtain the power backoff value included or carried by the first prompt information.
  • the network device can reduce the value of the third parameter of the terminal device to avoid the terminal device from triggering a power backoff event in the future.
  • the network device can reduce the value of the third parameter of the terminal device as follows:
  • the network device can reduce the transmission power of the terminal device, and/or reduce the uplink scheduling time length of the terminal device.
  • the radiation amount of the terminal device can be reduced.
  • the network device can reduce the length of the uplink scheduling time of the terminal device.
  • the proportion of the uplink transmission time of the terminal device can be reduced.
  • the preset power backoff threshold may be configured by the network device according to the capability of the network device, that is, the maximum power backoff value that the network device can withstand when the wireless link is maintained.
  • the second parameter value of the terminal device in the second time window can be determined. If the second parameter value is less than the preset parameter threshold, the terminal device generates second prompt information, where the second prompt information is used to request the network device to suspend reducing the third parameter value of the terminal device.
  • the terminal device sends the second prompt information to the network device, and the network device may respond to the second prompt information to suspend reducing the third parameter value of the terminal device.
  • the second parameter value may include the total radiation amount, the average radiation amount, or the average uplink transmission time percentage of the terminal device in the second time window.
  • FIG. 4A Taking the second parameter value as the total radiation dose as an example, see Figure 4A.
  • time windows T1 and T2 There are time windows T1 and T2.
  • the start time of time window T1 is 4s, and the end time of time window T1 is 8s; time window T2
  • the start time of T2 is 7s, and the end time of time window T2 is 15s.
  • the terminal device can count the total radiation amount of the terminal device in the period of 4s to 6s, and determine the total radiation amount as the radiation of the terminal device in the first time window The sum of the amounts.
  • the terminal device If the total radiation dose is greater than or equal to the preset radiation dose threshold, the terminal device generates first prompt information and sends the first prompt information to the network device, and the network device determines the power backoff value of the terminal device according to the first prompt information, If the power backoff value is greater than the preset power backoff threshold, the network device reduces the transmission power of the terminal device and/or reduces the length of the uplink scheduling time of the terminal device.
  • the terminal device can determine the total radiation amount of the terminal device in the second time window, if the total radiation amount of the terminal device in the second time window is less than The preset radiation dose threshold indicates that the terminal device predicts that no power backoff event will occur, and the terminal device generates the second prompt information, and sends the second prompt information to the network device.
  • the network device may suspend reducing the third parameter value of the terminal device, for example, suspend reducing the transmission power of the terminal device, and/or reduce the uplink scheduling time length of the terminal device.
  • the terminal device can determine the first parameter value of the terminal device in the first time window. If the first parameter value is greater than or equal to the preset parameter threshold, the terminal device can generate the first prompt message, the first prompt The information is used to instruct the terminal device to trigger a power back-off event. Then the terminal device sends the first prompt information to the network device, and the network device can obtain the power back-off value of the terminal device according to the first prompt information. If the power back-off value is greater than the preset power back-off threshold, the network device lowers the terminal device’s power The third parameter value can prevent the terminal device from performing power back-off in the future, thereby avoiding wireless link failure.
  • FIG. 5 is another method for power backoff provided by an embodiment of the present application, which is applied to the above example communication system, and the method includes:
  • the terminal device determines the total or average radiation amount of the terminal device in the first time window.
  • the terminal device If the total radiation dose is greater than or equal to the preset radiation dose threshold, or the average radiation dose is greater than or equal to the preset average radiation dose threshold, the terminal device generates first prompt information, and the first prompt information is used to instruct the terminal device to trigger the power return Retire event.
  • S503 The terminal device sends first prompt information to the network device.
  • the network device obtains the power backoff value of the terminal device according to the first prompt information.
  • L1 is the standard radiation dose
  • K1 is the preset radiation dose threshold
  • K1 ⁇ L1 is within the first time window.
  • the terminal device counts the total radiation amount of the terminal device from the start time of the first time window to t1, and compares the total radiation amount with the preset radiation amount threshold K1.
  • the terminal device sends the first prompt message to the network device, that is, the terminal device informs the network device that the network device exists in a certain way before the total radiation dose reaches the standard radiation dose L1 Potential power back-off risk.
  • a relatively low threshold K1 that is, when the total radiation amount of the terminal device reaches this threshold K1 at t1, the terminal device is triggered to report the first prompt information to the network device, and the subsequent terminal device When the total radiation amount reaches the standard radiation amount L1, the power backoff value will be reported to the network device.
  • the network device After receiving the first prompt message, the network device compares the power back-off value reported by the terminal device with the preset power back-off threshold. If the power back-off value reported by the terminal device is greater than the preset power back-off threshold, the network device Certain measures can be taken at t2 to prevent the terminal from performing power backoff. The measures can be to reduce the transmission power of the terminal device or reduce the uplink transmission time of the terminal device, etc., to avoid link failure.
  • time t2 can be the time when the network device determines that the power backoff value reported by the terminal device is greater than the preset power backoff threshold, or it can be the time after the network device determines that the power backoff value reported by the terminal device is greater than the preset power backoff threshold At a certain moment, it is not specifically limited by the embodiment of the present application.
  • the terminal device can count the total radiation amount of the terminal device in the second time window, and if the total radiation amount is less than the preset radiation threshold K1, then The terminal device sends the second prompt information to the network device, and the network device can respond to the second prompt information to pause and reduce the radiation amount of the terminal device, for example, pause to reduce the transmission power of the terminal device, or pause to reduce the uplink transmission time of the terminal device.
  • the terminal device determines the total radiation dose or the average radiation dose of the terminal device in the first time window, if the total radiation dose is greater than or equal to the preset radiation dose threshold, or the average radiation dose is greater than or equal to the preset average radiation dose Threshold, the terminal device generates the first prompt information, the terminal device sends the first prompt information to the network device, and the network device obtains the power back-off value of the terminal device according to the first prompt information. If the power back-off value is greater than the preset power back-off threshold , The network equipment reduces the radiation amount of the terminal equipment, which can prevent the terminal equipment from performing power back-off in the future, thereby avoiding the failure of the wireless link.
  • FIG. 7 is another method for power backoff provided by an embodiment of the present application, which is applied to the above example communication system, and the method includes:
  • the terminal device determines the percentage of the average uplink transmission time of the terminal device in the first time window.
  • the terminal device If the average uplink transmission time ratio is greater than or equal to the preset transmission time ratio threshold, the terminal device generates first prompt information, where the first prompt information is used to instruct the terminal device to trigger a power backoff event.
  • S703 The terminal device sends first prompt information to the network device.
  • S704 The network device obtains the power backoff value of the terminal device according to the first prompt information.
  • L2 is the maximum uplink transmission time proportion capability reported by the terminal device
  • K2 is the preset transmit time proportion threshold
  • K2 ⁇ L2 is within the first time window.
  • the terminal equipment counts the average uplink transmission time ratio of the terminal equipment from the start of the first time window to t1, and compares the average uplink transmission time ratio to the preset transmission time ratio
  • the threshold K2 is compared.
  • the terminal device When the average uplink transmission time ratio is greater than or equal to the preset transmission time ratio threshold K2, the terminal device sends the first prompt message to the network device, that is, the terminal device’s average uplink transmission time ratio reaches the value reported by the terminal device The ability to account for the maximum uplink transmission time L2 previously notified the network equipment of the potential risk of power back-off in a certain way.
  • a relatively low threshold K2 that is, when the total radiation amount of the terminal device reaches this threshold K2 at t1, the terminal device is triggered to report the first prompt information to the network device, and the subsequent terminal device
  • the power backoff value will be adopted and reported to the network equipment.
  • the network device After receiving the first prompt message, the network device compares the power back-off value reported by the terminal device with the preset power back-off threshold. If the power back-off value reported by the terminal device is greater than the preset power back-off threshold, the network device Certain measures can be taken at t2 to prevent the terminal from performing power back-off. This measure can reduce the uplink transmission time of the terminal device or no longer schedule the terminal device to perform uplink transmission, etc., to avoid link failure.
  • time t2 can be the time when the network device determines that the power back-off value reported by the terminal device is greater than the preset power back-off threshold, or it can be the time after the network device determines that the power back-off value reported by the terminal device is greater than the preset power back-off threshold At a certain moment, it is not specifically limited by the embodiment of this application.
  • the terminal device can make statistics on the average uplink transmission time proportion of the terminal device in the second time window, if the average uplink transmission time proportion is less than the preset If the transmission time ratio threshold is K2, the terminal device sends a second prompt message to the network device, and the network device can respond to the second prompt message to suspend and reduce the proportion of the uplink transmission time of the terminal device, for example, pause to reduce the uplink transmission time of the terminal device or no longer Scheduling terminal equipment for uplink transmission, etc.
  • the terminal device determines the average uplink transmission time percentage of the terminal device in the first time window. If the average uplink transmission time percentage is greater than or equal to the preset transmission time percentage threshold, the terminal device generates the first prompt message , The terminal device sends the first prompt information to the network device, and the network device obtains the power back-off value of the terminal device according to the first prompt information. If the power back-off value is greater than the preset power back-off threshold, the network device reduces the uplink transmission of the terminal device The time ratio can prevent the terminal equipment from performing power back-off in the future, thereby avoiding the failure of the wireless link.
  • the terminal equipment and the network equipment include hardware structures and/or software modules corresponding to the respective functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiment of the present application may divide the terminal device into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated unit can be realized in the form of hardware or software program module. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 9 shows a block diagram of a possible functional unit composition of the terminal device involved in the foregoing embodiment.
  • the terminal device 900 includes: a processing unit 902 and a communication unit 903.
  • the processing unit 902 is used to control and manage the actions of the terminal device.
  • the processing unit 902 is used to support the terminal device to execute steps S301 and S302 in FIG. 3, steps S501 and S502 in FIG. 5, and steps in FIG. S701 and step S702 and/or other processes used in the techniques described herein.
  • the communication unit 903 is used to support communication between the terminal device and other devices, for example, communication with a network device.
  • the terminal device may also include a storage unit 901 for storing program codes and data of the terminal device.
  • the processing unit 902 may be a processor or a controller
  • the communication unit 903 may be a communication interface, a transceiver, a transceiver circuit, a radio frequency chip, etc.
  • the storage unit 901 may be a memory.
  • the processing unit 902 is configured to determine the first parameter value of the terminal device in the first time window, and if the first parameter value is greater than or equal to a preset parameter threshold, generate first prompt information, so The first prompt information is used to indicate that the terminal device triggers a power fallback event;
  • the communication unit 903 is configured to send the first prompt information to a network device.
  • the first prompt information includes a power backoff value of the terminal device.
  • the first parameter value includes a total radiation dose or an average radiation dose
  • the total radiation dose is the time from the start time of the first time window to the first time window of the terminal device in the first time window.
  • the total amount of radiation at the current moment, where the average radiation amount is the ratio between the total amount of radiation and the length of the first time window;
  • the preset parameter threshold is a preset radiation dose threshold
  • the preset parameter threshold is a preset average radiation dose.
  • the preset radiation dose threshold is determined according to a standard radiation dose, and the preset radiation dose threshold is less than or equal to the standard radiation dose.
  • the difference between the preset radiation dose threshold and the standard radiation dose is less than a preset radiation threshold, or the ratio between the preset radiation dose threshold and the standard radiation dose is less than Preset ratio threshold.
  • the first parameter value is an average uplink transmission time ratio of the terminal device sending an uplink signal within the first time window
  • the preset parameter threshold is a preset transmission time ratio Threshold.
  • the processing unit 902 is further configured to determine the second parameter value of the terminal device in the second time window after the communication unit 903 sends the first prompt information to the network device If the second parameter value is less than the preset parameter threshold, generating second prompt information, the second prompt information being used to request the network device to suspend reducing the third parameter value of the terminal device;
  • the communication unit 903 is further configured to send the second prompt information to the network device.
  • the end time of the first time window is the start time of the second time window.
  • the second time window and the first time window partially overlap.
  • the preset parameter threshold is pre-configured or agreed upon by a protocol, or the preset parameter threshold is sent by the network device to the terminal device through instruction information.
  • the terminal device involved in the embodiment of the present application may be the terminal device shown in FIG. 10.
  • FIG. 11 shows a block diagram of a possible functional unit composition of the network device involved in the foregoing embodiment.
  • the network device 1100 includes: a processing unit 1102 and a communication unit 1103.
  • the processing unit 1102 is used to control and manage the actions of the network device.
  • the processing unit 1102 is used to support the network device to perform steps S304 and S305 in FIG. 3, steps S504 and S505 in FIG. 5, and steps S704 and S704 in FIG. S705 and/or other processes used in the techniques described herein.
  • the communication unit 1103 is used to support communication between a network device and other devices, for example, communication with a terminal device.
  • the network device may also include a storage unit 1101 for storing program codes and data of the terminal device.
  • the processing unit 1102 may be a processor or a controller
  • the communication unit 1103 may be a transceiver, a transceiver circuit, a radio frequency chip, etc.
  • the storage unit 1101 may be a memory.
  • the communication unit 1103 is configured to receive first prompt information sent by a terminal device, the first prompt information is used to instruct the terminal device to trigger a power backoff event, and the first prompt information is the terminal device Generated when it is determined that the first parameter value is greater than or equal to a preset parameter threshold, the first parameter value is the first parameter value of the terminal device in the first time window determined by the terminal device;
  • the processing unit 1102 is configured to obtain the power back-off value of the terminal device according to the first prompt information, and if the power back-off value is greater than a preset power back-off threshold, decrease the third power back-off value of the terminal device.
  • the parameter value is configured to obtain the power back-off value of the terminal device according to the first prompt information, and if the power back-off value is greater than a preset power back-off threshold, decrease the third power back-off value of the terminal device. The parameter value.
  • the first parameter value includes a total radiation dose or an average radiation dose
  • the total radiation dose is the time from the start time of the first time window to the first time window of the terminal device in the first time window.
  • the total amount of radiation at the current moment, where the average radiation amount is the ratio between the total amount of radiation and the length of the first time window;
  • the processing unit 1102 reduces the third parameter value of the terminal device, specifically for:
  • the first parameter value is the average uplink transmission time percentage
  • the processing unit 1102 reduces the third parameter value of the terminal device, specifically for:
  • the communication unit 1103 is further configured to receive the second prompt information sent by the terminal device after the processing unit 1102 reduces the value of the third parameter of the terminal device.
  • the prompt information is used to request to suspend the reduction of the third parameter value of the terminal device;
  • the processing unit 1102 is further configured to respond to the second prompt information to suspend lowering the third parameter value of the terminal device.
  • the processing unit 1102 obtains the power backoff value of the terminal device according to the first prompt information, which is specifically used to:
  • search for the power backoff value of the terminal device in the memory of the network device In response to the first prompt information, search for the power backoff value of the terminal device in the memory of the network device.
  • the first prompt information includes a power backoff value of the terminal device
  • the processing unit 1102 obtains the power backoff value of the terminal device according to the first prompt information, which is specifically used to:
  • the network device involved in the embodiment of the present application may be the network device shown in FIG. 12.
  • the embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the terminal in the above method embodiment Part or all of the steps described by the device.
  • the embodiments of the present application also provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the method embodiments described above. Part or all of the steps described in the terminal device.
  • the computer program product may be a software installation package.
  • the steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions.
  • Software instructions can be composed of corresponding software modules, which can be stored in random access memory (Random Access Memory, RAM), flash memory, read-only memory (Read Only Memory, ROM), and erasable programmable read-only memory ( Erasable Programmable ROM (EPROM), Electrically Erasable Programmable Read-Only Memory (Electrically EPROM, EEPROM), registers, hard disk, mobile hard disk, CD-ROM, or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the ASIC may be located in an access network device, a target network device, or a core network device.
  • the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.
  • the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (for example, a solid state disk (Solid State Disk, SSD)) )Wait.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a digital video disc (Digital Video Disc, DVD)
  • a semiconductor medium for example, a solid state disk (Solid State Disk, SSD)

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Abstract

本申请实施例公开了用于功率回退的方法、终端设备以及网络设备，所述用于功率回退的方法包括：确定终端设备在第一时间窗口内的第一参数值；若所述第一参数值大于或等于预设参数门限，则生成第一提示信息，所述第一提示信息用于指示所述终端设备触发功率回退事件；向网络设备发送所述第一提示信息。本申请实施例可预估未来可能发生的功率回退事件，进而向网络设备做出提示，以便网络设备采取措施避免无线链路失败。

Description

用于功率回退的方法、终端设备以及网络设备 技术领域
本申请涉及通信技术领域，尤其涉及用于功率回退的方法、终端设备以及网络设备。
背景技术
通信系统中，如果终端设备在一定时间段内的平均辐射值超过了法规规定的辐射指标，终端设备将进行功率回退以降低终端的发射功率，进而避免终端设备通过电磁辐射对人体造成伤害。但是，当终端设备的功率回退值大于网络设备能承受的功率回退门限时，网络设备和终端设备之间的无线链路的质量瞬间恶化，导致网络设备无法接收到来自终端设备的上行信号，进而导致该无线链路失败。基于此，如何避免因无线链路质量瞬时恶化导致的无线链路失败，是当前亟需解决的技术问题。
发明内容
本申请的实施例提供用于功率回退的方法、终端设备以及网络设备，可预估未来可能发生的功率回退事件，进而向网络设备做出提示，以便网络设备采取措施避免无线链路失败。
第一方面，本申请实施例提供一种用于功率回退的方法，包括：
确定终端设备在第一时间窗口内的第一参数值；
若所述第一参数值大于或等于预设参数门限，则生成第一提示信息，所述第一提示信息用于指示所述终端设备触发功率回退事件；
向网络设备发送所述第一提示信息。
第二方面，本申请实施例提供一种用于功率回退的方法，包括：
接收终端设备发送的第一提示信息，所述第一提示信息用于指示所述终端设备触发功率回退事件，所述第一提示信息是所述终端设备在判断第一参数值大于或等于预设参数门限时生成的，所述第一参数值为所述终端设备确定得到的所述终端设备在第一时间窗口内的第一参数值；
根据所述第一提示信息获取所述终端设备的功率回退值；
若所述功率回退值大于预设功率回退阈值，则降低所述终端设备的第三参数值。
第三方面，本申请实施例提供一种终端设备，该终端设备具有实现上述第一方面所述方法设计的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。在一个可能的设计中，终端设备包括处理器，所述处理器被配置为支持终端设备执行上述方法中相应的功能。进一步的，终端设备还可以包括通信接口，所述通信接口用于支持终端设备与网络设备之间的通信。进一步的，终端设备还可以包括存储器，所述存储器用于与处理器耦合，其保存终端设备必要的程序指令和数据。
第四方面，本申请实施例提供一种网络设备，该网络设备具有实现上述第二方面所述方法设计的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。在一个可能的设计中，网络设备包括处理器，所述处理器被配置为支持网络设备执行上述方法中相应的功能。进一步的，网络设备还可以包括收发器，所述收发器用于支持网络设备与终端设备之间的通信。进一步的，网络设备还可以包括存储器，所述存储器用于与处理器耦合，其保存网络设备必要 的程序指令和数据。
第五方面，本申请实施例提供一种终端设备，包括处理器、存储器、通信接口以及一个或多个程序，其中，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行本申请实施例第一方面任一方法中的步骤的指令。
第六方面，本申请实施例提供一种网络设备，包括处理器、存储器、收发器以及一个或多个程序，其中，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行本申请实施例第二方面任一方法中的步骤的指令。
第七方面，本申请实施例提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如本申请实施例第一方面任一方法中所描述的部分或全部步骤。
第八方面，本申请实施例提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如本申请实施例第二方面任一方法中所描述的部分或全部步骤。
第九方面，本申请实施例提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如本申请实施例第一方面任一方法中所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
第十方面，本申请实施例提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如本申请实施例第二方面任一方法中所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
可以看出，本申请实施例，终端设备可以确定该终端设备在第一时间窗口内的第一参数值，若第一参数值大于或等于预设参数门限，那么终端设备预估到未来可能发生功率回退事件，进而生成第一提示信息，第一提示信息用于指示终端设备触发功率回退事件。然后终端设备将第一提示信息发送给网络设备，以便网络设备采取措施避免无线链路失败。
附图说明
下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1是本申请实施例提供的一种通信系统的系统架构图；
图2是本申请实施例提供的一种传统的通信系统中的功率回退示意图；
图3是本申请实施例提供的一种用于功率回退的方法的流程示意图；
图4A是本申请实施例提供的一种时间窗口示意图；
图4B是本申请实施例提供的另一种时间窗口示意图；
图5是本申请实施例提供的另一种用于功率回退的方法的流程示意图；
图6是本申请实施例提供的一种辐射量示意图；
图7是本申请实施例提供的另一种用于功率回退的方法的流程示意图；
图8是本申请实施例提供的一种上行发射时间占比示意图；
图9是本申请实施例提供的一种终端设备的结构示意图；
图10是本申请实施例提供的另一种终端设备的结构示意图；
图11是本申请实施例提供的一种网络设备的结构示意图；
图12是本申请实施例提供的另一种网络设备的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述， 显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本申请实施例的技术方案可以应用于各种通信系统，例如：长期演进(Long Term Evolution，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、新无线(New Radio，NR)系统、NR系统的演进系统、非授权频段上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、NR-U系统、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、下一代通信系统或其他通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(Device to Device，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(Machine Type Communication，MTC)，以及车辆间(Vehicle to Vehicle，V2V)通信等，本申请实施例也可以应用于这些通信系统。
示例性的，本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括网络设备110，网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。可选地，该网络设备110可以是LTE系统中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者是云无线接入网络(Cloud Radio Access Network，CRAN)中的无线控制器，或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的通信系统中的网络设备等。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。该终端设备120与网络设备110可以通过无线或者有线连接。当终端设备120与网络设备110通过无线连接时，该终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global Positioning System，GPS)接收器的PDA；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment，UE)、用户单元、用户站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的通信系统中的终端设备等。
可选地，终端设备120与其它的终端设备或用户设备之间可以进行D2D通信。
可选地，5G系统或5G网络还可以称为新无线(New Radio，NR)系统或NR网络。
图1示例性地示出了通信系统100，该通信系统110中包括一个网络设备110和两个终端设备120。可选地，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括一个或多个终端设备，本申请实施例对此不做限定。
可选地，该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体，本申请实施例对此不作限定。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
为避免终端设备(例如手机等电磁辐射设备)对人体的伤害，标准上对电磁辐射的指标参量有严格的指标要求，终端设备不能超过标准辐射量。举例来说，在6GHz以下频段，电磁波吸收比值(Specific Absorption Rate，SAR)是衡量终端设备对人体电磁辐射强度的指标参量。SAR指标是终端设备在一定时间段内的平均测量值，终端设备的发射功率越高则SAR越高，终端设备的上行发射时间越长则SAR越高。举例来说，在6GHz以上频段，最大允许辐射(Maximum Permissible Emission，MPE)是衡量终端设备对人体电磁辐射强度的指标参量。MPE指标是终端设备在一定时间段内且一定面积内的功率密度平均测量值，终端设备的发射功率越高则MPE越高。
在此基础上，如果终端设备的指标参量超过标准辐射量，那么终端设备将采用功率回退的方式降低终端设备的发射功率，以降低终端设备的指标参量。功率回退技术指的是把终端设备的功率放大器的输入功率从1dB压缩点(相当于放大器线性区和非线性区的临界点)向后回退6-10个分贝，工作在远小于1dB压缩点的电平上，使功率放大器远离饱和区，进入线性工作区，从而改善功率放大器的三阶交调系数。
传统的通信系统中，以图2所示的功率回退示意图为例，终端设备在t1时刻计算该终端设备在时间窗口w内的辐射量总和，如果该辐射量总和超过了法规规定的标准辐射量，那么触发终端设备进行功率回退。通过功率回退的方式，可以降低终端设备在相对时间窗口w的下一时间窗口的辐射量总和。但是，当功率回退值超过一定值时，网络设备将无法接收到终端设备发送的上行信号，导致上行链路无法保持，出现无线链路失败。
针对上述问题，本申请实施例提出以下实施例，下面结合附图进行详细描述。
请参阅图3，图3是本申请实施例提供的一种用于功率回退的方法，应用于上述示例通信系统，该方法包括：
S301、终端设备确定终端设备在第一时间窗口内的第一参数值。
终端设备可以统计终端设备在第一时间窗口内的第一参数值。举例来说，如果当前时刻位于第一时间窗口内，那么终端设备可以统计终端设备在第一时间窗口内的第一参数值。
其中，第一参数值可以包括如下三种参量中的任一种：
一、辐射量总和。辐射量总和为终端设备在第一时间窗口内从第一时间窗口的起始时刻到当前时刻的辐射量总和。每个时间窗口的长度、时间窗口的起始时间或时间窗口的结束时间可以是预配置或协议约定的，或者是网络设备通过指示信息发送给终端设备的。不同时间窗口的长度可以相同，也可以不相同，具体不受本申请实施例的限定。以图4A所示的时间窗口示意图为例，存在时间窗口T1以及时间窗口T2，假设时间窗口T1的起始时刻为4s，时间窗口T1的结束时刻为8s；时间窗口T2的起始时刻为7s，时间窗口T2的结束时刻为15s。如果当前时刻为6s，那么第一时间窗口为T1，终端设备可以统计终端设备在4s至6s这一时间段的辐射量总和，将该辐射量总和确定为终端设备在第一时间窗口内的辐射量总和。如果当前时刻为8s，那么第一时间窗口为T1，终端设备可以统计终端设备在4s至8s这一时间段(即整个第一时间窗口)的辐射量总和，将该辐射量总和确定为终端设备在第一时间窗口内的辐射量总和。
其中，辐射量总和可通过终端设备的射频发射功率及天线增益得到。例如，终端设备的发射功率为P，终端设备的天线增益为A(A可以为某个方向上的增益)，则辐射量总和可认为是P+A。
其中，第二时间窗口可以为第一时间窗口的下一个时间窗口。
在一种实现方式中，第一时间窗口的结束时间为所述第二时间窗口的起始时间。
以图4B所示的时间窗口示意图为例，假设时间窗口T1的结束时刻为8s，那么时间窗口T2的起始时刻为8s。
在一种实现方式中，所述第二时间窗口和所述第一时间窗口部分重叠。
以图4A所示的时间窗口示意图为例，第二时间窗口的起始时刻位于第一时间窗口内，第一时间窗口的结束时刻位于第二时间窗口内。假设时间窗口T1的起始时刻为4s，时间窗口T1的结束时刻为8s；时间窗口T2的起始时刻为7s，时间窗口T2的结束时刻为15s。那么第一时间窗口和第二时间窗口的重叠部分为7s至8s这一时间段。
二、平均辐射量。平均辐射量为辐射量总和与第一时间窗口的长度之间的比值。以图4A所示的时间窗口示意图为例，如果当前时刻为6s，那么第一时间窗口为T1，第一时间窗口的长度为4s，即第一时间窗口的结束时刻与第一时间窗口的起始时刻之间的差值，终端设备可以统计终端设备在4s至6s这一时间段的辐射量总和，将该辐射量总和与第一时间窗口的长度之间的比值确定为终端设备在第一时间窗口内的平均辐射量。如果当前时刻为8s，那么第一时间窗口为T1，终端设备可以统计终端设备在4s至8s这一时间段的辐射量总和，将该辐射量总和与第一时间窗口的长度之间的比值确定为终端设备在第一时间窗口内的平均辐射量。
三、平均上行发射时间占比。平均上行发射时间占比为终端设备在第一时间窗口内发送上行信号的平均上行发射时间占比。
S302、若第一参数值大于或等于预设参数门限，则终端设备生成第一提示信息，第一提示信息用于指示终端设备触发功率回退事件。
终端设备确定第一参数值之后，可以将该第一参数值与预设参数门限进行比较，当第一参数值大于或等于预设参数门限时，终端设备预估未来可能发生功率回退事件，进而终端设备可以生成第一提示信息。
在一种实现方式中，终端设备可以生成用于指示终端设备触发功率回退事件的第一提示信息，并将该第一提示信息发送给网络设备。网络设备接收到该第一提示信息之后，可以确定终端设备在未来可能发生功率回退事件，进而在网络设备的存储器中查找终端设备的功率回退值。也就是说，终端设备的功率回退值是固定的，终端设备可以在初始接入时将终端设备的功率回退值上报给网络设备。在终端设备将功率回退值上报给网络设备之后，如果终端设备确定未来可能发生功率回退事件，那么终端设备可以无需上报功率回退值，而是向网络设备发送用于指示终端设备触发功率回退事件的第一提示信息，例如功率回退告警信息。
在一种实现方式中，第一提示信息包括终端设备的功率回退值，功率回退值用于指示终端设备触发功率回退事件。或者第一提示信息携带终端设备的功率回退值，第一提示信息用于指示终端设备触发功率回退事件。终端设备将包含终端设备的功率回退值的第一提示信息发送给网络设备，或者终端设备将携带终端设备的功率回退值的第一提示信息发送给网络设备。网络设备接收到该第一提示信息之后，可以确定终端设备在未来可能发生功率回退事件，进而获取该第一提示信息所包含的功率回退值。也就是说，终端设备的功率回退值是不确定的，例如是跟当前采用的波束(beam)直接相关的，那么终端设备可以将第一提示信息和终端设备未来将要采用的功率回退值发送给网络设备，网络设备根据第一提示信息确定终端设备未来可能发生功率回退事件，进而判断终端设备发送的功率回退值是否大于预设功率回退阈值。可选的，终端设备可以只将终端设备未来将要采用的功率回退值发送给网络设备，网络设备接收到功率回退值时，可以确定终端设备未来可能发生功率回退事件，进而判断终端设备发送的功率回退值是否大于预设功率回退阈值。
其中，预设参数门限可以是预配置的或协议约定的，也可以是网络设备通过指示信息 发送给终端设备的。
在一种实现方式中，当第一参数值为辐射量总和时，预设参数门限为预设辐射量门限。终端设备确定终端设备在第一时间窗口内的辐射量总和之后，可以判断确定得到的辐射量总和是否大于或等于预设辐射量门限，当确定得到的辐射量总和大于或等于预设辐射量门限时，终端设备可以生成第一提示信息；当确定得到的辐射量总和小于预设辐射量门限时，终端设备可以实时检测终端设备在第一时间窗口内从第一时间窗口的起始时刻到当前时刻的辐射量总和。
其中，预设辐射量门限是根据标准辐射量确定得到的，预设辐射量门限小于或等于标准辐射量。为避免终端设备(例如手机等电磁辐射设备)对人体的伤害，标准上对电磁辐射的指标参量有严格的指标要求，终端设备不能超过标准辐射量。
例如，预设辐射量门限与标准辐射量之间的差值可以小于预设辐射阈值，或预设辐射量门限与标准辐射量之间的比值可以小于预设比例阈值。
在一种实现方式中，当第一参数值为平均辐射量时，预设参数门限为预设平均辐射量。终端设备确定终端设备在第一时间窗口内的平均辐射量之后，可以判断确定得到的平均辐射量是否大于或等于预设平均辐射量，当确定得到的平均辐射量大于或等于预设平均辐射量门限时，终端设备可以生成第一提示信息；当确定得到的平均辐射量小于预设平均辐射量门限时，终端设备可以实时检测终端设备在第一时间窗口内从第一时间窗口的起始时刻到当前时刻的平均辐射量。
其中，预设平均辐射量门限是根据标准辐射量与第一时间窗口的长度之间的比值确定得到的，预设平均辐射量门限小于或等于标准辐射量与第一时间窗口的长度之间的比值。
例如，预设平均辐射量门限与该比值之间的差值可以小于预设辐射阈值，或预设平均辐射量门限与该比值之间的比值可以小于预设比例阈值。
在一种实现方式中，当终端设备的工作频率大于预设频率阈值时，辐射量总和或平均辐射量可以为MPE。当终端设备的工作频率小于或等于预设频率阈值时，辐射量总和或平均辐射量可以为SAR。示例性的，预设频率阈值可以为6GHz。
在一种实现方式中，当第一参数值为终端设备在第一时间窗口内发送上行信号的平均上行发射时间占比时，预设参数门限可以为预设发射时间占比门限。
S303、终端设备向网络设备发送第一提示信息。
S304、网络设备根据第一提示信息获取终端设备的功率回退值。
在一种实现方式中，终端设备的功率回退值是固定的，终端设备可以在初始接入时将终端设备的功率回退值上报给网络设备，网络设备将终端设备的功率回退值存储到网络设备的存储器中。在此基础上，网络设备接收到第一提示信息之后，可以在网络设备的存储器中查找所述终端设备的功率回退值。
在一种实现方式中，如果第一提示信息包括或携带终端设备的功率回退值，那么网络设备接收到第一提示信息之后，可以获取第一提示信息包括或携带的功率回退值。
S305、若功率回退值大于预设功率回退阈值，则网络设备降低终端设备的第三参数值。
当功率回退值大于预设功率回退阈值时，表明基站后续可能无法接收到终端的上行信号，导致上行链路无法保持，出现无线链路失败。基于此，网络设备可以降低终端设备的第三参数值，以避免终端设备在未来触发功率回退事件。网络设备降低终端设备的第三参数值的方式可以包括如下两种：
一、当第一参数值包括辐射量总和或平均辐射量时，网络设备可以降低终端设备的发射功率，和/或降低所述终端设备的上行调度时间长度。在本申请实施例中，通过降低终端设备的发射功率，和/或降低所述终端设备的上行调度时间长度，可实现降低终端设备的辐射量。
二、当第一参数值为平均上行发射时间占比时，网络设备可以降低终端设备的上行调度时间长度。在本申请实施例中，通过降低终端设备的上行调度时间长度，可实现降低终端设备的上行发射时间占比。
其中，预设功率回退阈值可以是网络设备根据网络设备的能力配置得到的，即网络设备在无线链路保持的情况下，能承受的最大功率回退值。
在一种实现方式中，终端设备向网络设备发送所述第一提示信息之后，可以确定所述终端设备在第二时间窗口内的第二参数值。若所述第二参数值小于所述预设参数门限，则终端设备生成第二提示信息，所述第二提示信息用于请求所述网络设备暂停降低所述终端设备的第三参数值。终端设备向所述网络设备发送所述第二提示信息，网络设备可以响应所述第二提示信息暂停降低所述终端设备的第三参数值。其中，该第二参数值可以包括终端设备在第二时间窗口内的辐射量总和、平均辐射量或平均上行发射时间占比。
以第二参数值为辐射量总和为例进行说明，参见图4A，存在时间窗口T1以及时间窗口T2，假设时间窗口T1的起始时刻为4s，时间窗口T1的结束时刻为8s；时间窗口T2的起始时刻为7s，时间窗口T2的结束时刻为15s。如果当前时刻为6s，那么第一时间窗口为T1，终端设备可以统计终端设备在4s至6s这一时间段的辐射量总和，将该辐射量总和确定为终端设备在第一时间窗口内的辐射量总和。若该辐射量总和大于或等于预设辐射量门限，则终端设备生成第一提示信息，并将第一提示信息发送给网络设备，网络设备根据第一提示信息确定终端设备的功率回退值，若功率回退值大于预设功率回退阈值，则网络设备降低终端设备的发射功率，和/或降低所述终端设备的上行调度时间长度。在当前时刻到达7s(即第二时间窗口T2的起始时刻)之后，终端设备可以确定终端设备在第二时间窗口内的辐射量总和，若终端设备在第二时间窗口内的辐射量总和小于预设辐射量门限，表明终端设备预估不发生功率回退事件，则终端设备生成第二提示信息，并将第二提示信息发送给网络设备。网络设备接收到第二提示信息之后，可以暂停降低终端设备的第三参数值，例如暂停降低终端设备的发射功率，和/或降低所述终端设备的上行调度时间长度。
在本申请中，终端设备可以确定该终端设备在第一时间窗口内的第一参数值，若第一参数值大于或等于预设参数门限，那么终端设备可以生成第一提示信息，第一提示信息用于指示终端设备触发功率回退事件。然后终端设备将第一提示信息发送给网络设备，网络设备可以根据第一提示信息获取终端设备的功率回退值，若功率回退值大于预设功率回退阈值，则网络设备降低终端设备的第三参数值，可避免终端设备在未来进行功率回退，进而避免无线链路失败。
请参阅图5，图5是本申请实施例提供的另一种用于功率回退的方法，应用于上述示例通信系统，该方法包括：
S501、终端设备确定终端设备在第一时间窗口内的辐射量总和或平均辐射量。
S502、若辐射量总和大于或等于预设辐射量门限，或平均辐射量大于或等于预设平均辐射量门限，则终端设备生成第一提示信息，第一提示信息用于指示终端设备触发功率回退事件。
S503、终端设备向网络设备发送第一提示信息。
S504、网络设备根据第一提示信息获取终端设备的功率回退值。
S505、若功率回退值大于预设功率回退阈值，则网络设备降低终端设备的辐射量。
以第一参数值为辐射量总和进行举例说明，参见图6所示的辐射量示意图，L1为标准辐射量，K1为预设辐射量门限，K1＜L1，t1位于第一时间窗口内。假设当前时刻为t1，终端设备统计终端设备从第一时间窗口的起始时刻至t1这一时间段的辐射量总和，并将该辐射量总和与预设辐射量门限K1进行比较。当该辐射量总和大于或等于预设辐射量门限K1时，终端设备向网络设备发送第一提示信息，也就是说，终端设备在辐射量总和达到标准 辐射量L1之前通过一定方式告知网络设备存在潜在的功率回退风险。这里我们定义了一个相对较低的门限值K1，即当终端设备的辐射量总和在t1时刻达到这个门限值K1时，触发终端设备向网络设备上报第一提示信息，并将后续终端设备的辐射量总和达到标准辐射量L1时将采取的功率回退值上报网络设备。网络设备在接收到第一提示信息后，将终端设备上报的功率回退值和预设功率回退门限进行比较，若终端设备上报的功率回退值大于预设功率回退门限，则网络设备可以在t2时刻采取一定的措施来避免终端进行功率回退，该措施可以为降低终端设备的发射功率或减少终端设备的上行发射时间等，以避免出现链路失败。其中，t2时刻可以为网络设备确定终端设备上报的功率回退值大于预设功率回退门限的时刻，也可以为网络设备确定终端设备上报的功率回退值大于预设功率回退门限之后的某一时刻，具体不受本申请实施例的限制。
进一步的，在下一时间窗口(即第二时间窗口)的某个时刻，终端设备可以统计终端设备在第二时间窗口内的辐射量总和，若该辐射量总和小于预设辐射量门限K1，则终端设备向网络设备发送第二提示信息，网络设备可以响应第二提示信息暂停降低终端设备的辐射量，例如暂停降低终端设备的发射功率，或暂停减少终端设备的上行发射时间等。
在本申请中，终端设备确定终端设备在第一时间窗口内的辐射量总和或平均辐射量，若辐射量总和大于或等于预设辐射量门限，或平均辐射量大于或等于预设平均辐射量门限，则终端设备生成第一提示信息，终端设备向网络设备发送第一提示信息，网络设备根据第一提示信息获取终端设备的功率回退值，若功率回退值大于预设功率回退阈值，则网络设备降低终端设备的辐射量，可避免终端设备在未来进行功率回退，进而避免无线链路失败。
请参阅图7，图7是本申请实施例提供的另一种用于功率回退的方法，应用于上述示例通信系统，该方法包括：
S701、终端设备确定终端设备在第一时间窗口内的平均上行发射时间占比。
S702、若平均上行发射时间占比大于或等于预设发射时间占比门限，则终端设备生成第一提示信息，第一提示信息用于指示终端设备触发功率回退事件。
S703、终端设备向网络设备发送第一提示信息。
S704、网络设备根据第一提示信息获取终端设备的功率回退值。
S705、若功率回退值大于预设功率回退阈值，则网络设备降低终端设备的上行发射时间占比。
以图8所示的上行发射时间占比示意图，L2为终端设备上报的最大上行发射时间占比能力，K2为预设发射时间占比门限，K2＜L2，t1位于第一时间窗口内。假设当前时刻为t1，终端设备统计终端设备从第一时间窗口的起始时刻至t1这一时间段的平均上行发射时间占比，并将该平均上行发射时间占比与预设发射时间占比门限K2进行比较。当该平均上行发射时间占比大于或等于预设发射时间占比门限K2时，终端设备向网络设备发送第一提示信息，也就是说，终端设备在平均上行发射时间占比达到终端设备上报的最大上行发射时间占比能力L2之前通过一定方式告知网络设备存在潜在的功率回退风险。这里我们定义了一个相对较低的门限值K2，即当终端设备的辐射量总和在t1时刻达到这个门限值K2时，触发终端设备向网络设备上报第一提示信息，并将后续终端设备的平均上行发射时间占比达到终端设备上报的最大上行发射时间占比能力L2时将采取的功率回退值上报网络设备。网络设备在接收到第一提示信息后，将终端设备上报的功率回退值和预设功率回退门限进行比较，若终端设备上报的功率回退值大于预设功率回退门限，则网络设备可以在t2时刻采取一定的措施来避免终端进行功率回退，该措施可以为减少终端设备的上行发射时间或不再调度终端设备进行上行发射等，以避免出现链路失败。其中，t2时刻可以为网络设备确定终端设备上报的功率回退值大于预设功率回退门限的时刻，也可以为网络设备确定终端设备上报的功率回退值大于预设功率回退门限之后的某一时刻，具体不受本申请实施例的限 制。
进一步的，在下一时间窗口(即第二时间窗口)的某个时刻，终端设备可以统计终端设备在第二时间窗口内的平均上行发射时间占比，若该平均上行发射时间占比小于预设发射时间占比门限K2，则终端设备向网络设备发送第二提示信息，网络设备可以响应第二提示信息暂停降低终端设备的上行发射时间占比，例如暂停减少终端设备的上行发射时间或不再调度终端设备进行上行发射等。
在本申请中，终端设备确定终端设备在第一时间窗口内的平均上行发射时间占比，若平均上行发射时间占比大于或等于预设发射时间占比门限，则终端设备生成第一提示信息，终端设备向网络设备发送第一提示信息，网络设备根据第一提示信息获取终端设备的功率回退值，若功率回退值大于预设功率回退阈值，则网络设备降低终端设备的上行发射时间占比，可避免终端设备在未来进行功率回退，进而避免无线链路失败。
上述主要从各个网元之间交互的角度对本申请实施例的方案进行了介绍。可以理解的是，终端设备和网络设备为了实现上述功能，其包括了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对终端设备进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件程序模块的形式实现。需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
在采用集成的单元的情况下，图9示出了上述实施例中所涉及的终端设备的一种可能的功能单元组成框图，终端设备900包括：处理单元902和通信单元903。处理单元902用于对终端设备的动作进行控制管理，例如，处理单元902用于支持终端设备执行图3中的步骤S301以及步骤S302、图5中的步骤S501以及步骤S502、图7中的步骤S701以及步骤S702和/或用于本文所描述的技术的其它过程。通信单元903用于支持终端设备与其他设备的通信，例如与网络设备之间的通信。终端设备还可以包括存储单元901，用于存储终端设备的程序代码和数据。
其中，处理单元902可以是处理器或控制器，通信单元903可以是通信接口、收发器、收发电路、射频芯片等，存储单元901可以是存储器。
其中，所述处理单元902，用于确定所述终端设备在第一时间窗口内的第一参数值，若所述第一参数值大于或等于预设参数门限，则生成第一提示信息，所述第一提示信息用于指示所述终端设备触发功率回退事件；
所述通信单元903，用于向网络设备发送所述第一提示信息。
在一个可能的示例中，所述第一提示信息包括所述终端设备的功率回退值。
在一个可能的示例中，所述第一参数值包括辐射量总和或平均辐射量，所述辐射量总和为所述终端设备在所述第一时间窗口内从第一时间窗口的起始时刻到当前时刻的辐射量总和，所述平均辐射量为所述辐射量总和与所述第一时间窗口的长度之间的比值；
当所述第一参数值为所述辐射量总和时，所述预设参数门限为预设辐射量门限；或
当所述第一参数值为所述平均辐射量时，所述预设参数门限为预设平均辐射量。
在一个可能的示例中，所述所述预设辐射量门限是根据标准辐射量确定的，所述预设辐射量门限小于或等于所述标准辐射量。
在一个可能的示例中，所述预设辐射量门限与所述标准辐射量之间的差值小于预设辐射阈值，或所述预设辐射量门限与所述标准辐射量之间的比值小于预设比例阈值。
在一个可能的示例中，所述第一参数值为所述终端设备在所述第一时间窗口内发送上行信号的平均上行发射时间占比，所述预设参数门限为预设发射时间占比门限。
在一个可能的示例中，所述处理单元902，还用于在所述通信单元903向网络设备发送所述第一提示信息之后，确定所述终端设备在第二时间窗口内的第二参数值，若所述第二参数值小于所述预设参数门限，则生成第二提示信息，所述第二提示信息用于请求所述网络设备暂停降低所述终端设备的第三参数值；
所述通信单元903，还用于向所述网络设备发送所述第二提示信息。
在一个可能的示例中，所述第一时间窗口的结束时间为所述第二时间窗口的起始时间。
在一个可能的示例中，所述第二时间窗口和所述第一时间窗口部分重叠。
在一个可能的示例中，所述预设参数门限是预配置的或协议约定的，或所述预设参数门限是所述网络设备通过指示信息发送给所述终端设备的。
当处理单元902为处理器，通信单元903为通信接口，存储单元901为存储器时，本申请实施例所涉及的终端设备可以为图10所示的终端设备。
在采用集成的单元的情况下，图11示出了上述实施例中所涉及的网络设备的一种可能的功能单元组成框图，网络设备1100包括：处理单元1102和通信单元1103。处理单元1102用于对网络设备的动作进行控制管理，例如，处理单元1102用于支持网络设备执行图3中的步骤S304以及S305、图5中的步骤S504以及S505、图7中的步骤S704以及S705和/或用于本文所描述的技术的其它过程。通信单元1103用于支持网络设备与其他设备的通信，例如与终端设备之间的通信。网络设备还可以包括存储单元1101，用于存储终端设备的程序代码和数据。
其中，处理单元1102可以是处理器或控制器，通信单元1103可以是收发器、收发电路、射频芯片等，存储单元1101可以是存储器。
其中，所述通信单元1103，用于接收终端设备发送的第一提示信息，所述第一提示信息用于指示所述终端设备触发功率回退事件，所述第一提示信息是所述终端设备在判断第一参数值大于或等于预设参数门限时生成的，所述第一参数值为所述终端设备确定得到的所述终端设备在第一时间窗口内的第一参数值；
所述处理单元1102，用于根据所述第一提示信息获取所述终端设备的功率回退值，若所述功率回退值大于预设功率回退阈值，则降低所述终端设备的第三参数值。
在一个可能的示例中，所述第一参数值包括辐射量总和或平均辐射量，所述辐射量总和为所述终端设备在所述第一时间窗口内从第一时间窗口的起始时刻到当前时刻的辐射量总和，所述平均辐射量为所述辐射量总和与所述第一时间窗口的长度之间的比值；
所述处理单元1102降低所述终端设备的第三参数值，具体用于：
降低所述终端设备的发射功率，和/或降低所述终端设备的上行调度时间长度。
在一个可能的示例中，所述第一参数值为平均上行发射时间占比，所述处理单元1102降低所述终端设备的第三参数值，具体用于：
降低所述终端设备的上行调度时间长度。
在一个可能的示例中，所述通信单元1103，还用于在所述处理单元1102降低所述终端设备的第三参数值之后，接收所述终端设备发送的第二提示信息，所述第二提示信息用于请求暂停降低所述终端设备的第三参数值；
所述处理单元1102，还用于响应所述第二提示信息暂停降低所述终端设备的第三参数值。
在一个可能的示例中，所述处理单元1102根据所述第一提示信息获取所述终端设备的功率回退值，具体用于：
响应所述第一提示信息，在网络设备的存储器中查找所述终端设备的功率回退值。
在一个可能的示例中，所述第一提示信息包括所述终端设备的功率回退值；
所述处理单元1102根据所述第一提示信息获取所述终端设备的功率回退值，具体用于：
在所述第一提示信息中获取所述功率回退值。
当处理单元1102为处理器，通信单元1103为收发器，存储单元1101为存储器时，本申请实施例所涉及的网络设备可以为图12所示的网络设备。
本申请实施例还提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如上述方法实施例中终端设备所描述的部分或全部步骤。
本申请实施例还提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如上述方法实施例中终端设备所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
本申请实施例所描述的方法或者算法的步骤可以以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器(Random Access Memory，RAM)、闪存、只读存储器(Read Only Memory，ROM)、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、电可擦可编程只读存储器(Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于接入网设备、目标网络设备或核心网设备中。当然，处理器和存储介质也可以作为分立组件存在于接入网设备、目标网络设备或核心网设备中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请实施例所描述的功能可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包括一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(Digital Video Disc，DVD))、或者半导体介质(例如，固态硬盘(Solid State Disk，SSD))等。
以上所述的具体实施方式，对本申请实施例的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请实施例的具体实施方式而已，并不用于限定本申请实施例的保护范围，凡在本申请实施例的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请实施例的保护范围之内。

Claims (36)

  1. 一种用于功率回退的方法，其特征在于，包括：
    确定终端设备在第一时间窗口内的第一参数值；
    若所述第一参数值大于或等于预设参数门限，则生成第一提示信息，所述第一提示信息用于指示所述终端设备触发功率回退事件；
    向网络设备发送所述第一提示信息。
  2. 根据权利要求1所述的方法，其特征在于，所述第一提示信息包括所述终端设备的功率回退值。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一参数值包括辐射量总和或平均辐射量，所述辐射量总和为所述终端设备在所述第一时间窗口内从第一时间窗口的起始时刻到当前时刻的辐射量总和，所述平均辐射量为所述辐射量总和与所述第一时间窗口的长度之间的比值；
    当所述第一参数值为所述辐射量总和时，所述预设参数门限为预设辐射量门限；或，
    当所述第一参数值为所述平均辐射量时，所述预设参数门限为预设平均辐射量门限。
  4. 根据权利要求3所述的方法，其特征在于，所述预设辐射量门限是根据标准辐射量确定的，所述预设辐射量门限小于或等于所述标准辐射量。
  5. 根据权利要求4所述的方法，其特征在于，所述预设辐射量门限与所述标准辐射量之间的差值小于预设辐射阈值，或所述预设辐射量门限与所述标准辐射量之间的比值小于预设比例阈值。
  6. 根据权利要求1或2所述的方法，其特征在于，所述第一参数值为所述终端设备在所述第一时间窗口内发送上行信号的平均上行发射时间占比，所述预设参数门限为预设发射时间占比门限。
  7. 根据权利要求1或2所述的方法，其特征在于，所述向网络设备发送所述第一提示信息之后，还包括：
    确定所述终端设备在第二时间窗口内的第二参数值；
    若所述第二参数值小于所述预设参数门限，则生成第二提示信息，所述第二提示信息用于请求所述网络设备暂停降低所述终端设备的第三参数值；
    向所述网络设备发送所述第二提示信息。
  8. 根据权利要求7所述的方法，其特征在于，所述第一时间窗口的结束时间为所述第二时间窗口的起始时间。
  9. 根据权利要求7所述的方法，其特征在于，所述第二时间窗口和所述第一时间窗口部分重叠。
  10. 根据权利要求1或2所述的方法，其特征在于，所述预设参数门限是预配置的或协议约定的，或所述预设参数门限是所述网络设备通过指示信息发送给所述终端设备的。
  11. 一种用于功率回退的方法，其特征在于，包括：
    接收终端设备发送的第一提示信息，所述第一提示信息用于指示所述终端设备触发功率回退事件，所述第一提示信息是所述终端设备在判断第一参数值大于或等于预设参数门限时生成的，所述第一参数值为所述终端设备确定得到的所述终端设备在第一时间窗口内的第一参数值；
    根据所述第一提示信息获取所述终端设备的功率回退值；
    若所述功率回退值大于预设功率回退阈值，则降低所述终端设备的第三参数值。
  12. 根据权利要求11所述的方法，其特征在于，所述第一参数值包括辐射量总和或平均辐射量，所述辐射量总和为所述终端设备在所述第一时间窗口内从第一时间窗口的起始时刻到当前时刻的辐射量总和，所述平均辐射量为所述辐射量总和与所述第一时间窗口的长度之间的比值；
    所述降低所述终端设备的第三参数值，包括：
    降低所述终端设备的发射功率，和/或降低所述终端设备的上行调度时间长度。
  13. 根据权利要求11所述的方法，其特征在于，所述第一参数值为平均上行发射时间占比，所述降低所述终端设备的第三参数值，包括：
    降低所述终端设备的上行调度时间长度。
  14. 根据权利要求11所述的方法，其特征在于，所述降低所述终端设备的第三参数值之后，还包括：
    接收所述终端设备发送的第二提示信息，所述第二提示信息用于指示暂停降低所述终端设备的第三参数值；
    响应所述第二提示信息暂停降低所述终端设备的第三参数值。
  15. 根据权利要求11所述的方法，其特征在于，所述根据所述第一提示信息获取所述终端设备的功率回退值，包括：
    响应所述第一提示信息，在网络设备的存储器中查找所述终端设备的功率回退值。
  16. 根据权利要求11所述的方法，其特征在于，所述第一提示信息包括所述终端设备的功率回退值；
    所述根据所述第一提示信息获取所述终端设备的功率回退值，包括：
    在所述第一提示信息中获取所述功率回退值。
  17. 一种终端设备，其特征在于，包括处理单元和通信单元，
    所述处理单元，用于确定所述终端设备在第一时间窗口内的第一参数值，若所述第一参数值大于或等于预设参数门限，则生成第一提示信息，所述第一提示信息用于指示所述终端设备触发功率回退事件；
    所述通信单元，用于向网络设备发送所述第一提示信息。
  18. 根据权利要求17所述的终端设备，其特征在于，所述第一提示信息包括所述终端设备的功率回退值。
  19. 根据权利要求17或18所述的终端设备，其特征在于，所述第一参数值包括辐射 量总和或平均辐射量，所述辐射量总和为所述终端设备在所述第一时间窗口内从第一时间窗口的起始时刻到当前时刻的辐射量总和，所述平均辐射量为所述辐射量总和与所述第一时间窗口的长度之间的比值；
    当所述第一参数值为所述辐射量总和时，所述预设参数门限为预设辐射量门限；
    当所述第一参数值为所述平均辐射量时，所述预设参数门限为预设平均辐射量。
  20. 根据权利要求19所述的终端设备，其特征在于，所述所述预设辐射量门限是根据标准辐射量确定的，所述预设辐射量门限小于或等于所述标准辐射量。
  21. 根据权利要求20所述的终端设备，其特征在于，所述预设辐射量门限与所述标准辐射量之间的差值小于预设辐射阈值，或所述预设辐射量门限与所述标准辐射量之间的比值小于预设比例阈值。
  22. 根据权利要求17或18所述的终端设备，其特征在于，所述第一参数值为所述终端设备在所述第一时间窗口内发送上行信号的平均上行发射时间占比，所述预设参数门限为预设发射时间占比门限。
  23. 根据权利要求17或18所述的终端设备，其特征在于，
    所述处理单元，还用于在所述通信单元向网络设备发送所述第一提示信息之后，确定所述终端设备在第二时间窗口内的第二参数值，若所述第二参数值小于所述预设参数门限，则生成第二提示信息，所述第二提示信息用于请求所述网络设备暂停降低所述终端设备的第三参数值；
    所述通信单元，还用于向所述网络设备发送所述第二提示信息。
  24. 根据权利要求23所述的终端设备，其特征在于，所述第一时间窗口的结束时间为所述第二时间窗口的起始时间。
  25. 根据权利要求23所述的终端设备，其特征在于，所述第二时间窗口和所述第一时间窗口部分重叠。
  26. 根据权利要求17或18所述的终端设备，其特征在于，所述预设参数门限是预配置的或协议约定的，或所述预设参数门限是所述网络设备通过指示信息发送给所述终端设备的。
  27. 一种网络设备，其特征在于，包括处理单元和通信单元，
    所述通信单元，用于接收终端设备发送的第一提示信息，所述第一提示信息用于指示所述终端设备触发功率回退事件，所述第一提示信息是所述终端设备在判断第一参数值大于或等于预设参数门限时生成的，所述第一参数值为所述终端设备确定得到的所述终端设备在第一时间窗口内的第一参数值；
    所述处理单元，用于根据所述第一提示信息获取所述终端设备的功率回退值，若所述功率回退值大于预设功率回退阈值，则降低所述终端设备的第三参数值。
  28. 根据权利要求27所述的网络设备，其特征在于，所述第一参数值包括辐射量总和或平均辐射量，所述辐射量总和为所述终端设备在所述第一时间窗口内从第一时间窗口 的起始时刻到当前时刻的辐射量总和，所述平均辐射量为所述辐射量总和与所述第一时间窗口的长度之间的比值；
    所述处理单元降低所述终端设备的第三参数值，具体用于：
    降低所述终端设备的发射功率，和/或降低所述终端设备的上行调度时间长度。
  29. 根据权利要求27所述的网络设备，其特征在于，所述第一参数值为平均上行发射时间占比，所述处理单元降低所述终端设备的第三参数值，具体用于：
    降低所述终端设备的上行调度时间长度。
  30. 根据权利要求27所述的网络设备，其特征在于，
    所述通信单元，还用于在所述处理单元降低所述终端设备的第三参数值之后，接收所述终端设备发送的第二提示信息，所述第二提示信息用于指示暂停降低所述终端设备的第三参数值；
    所述处理单元，还用于响应所述第二提示信息暂停降低所述终端设备的第三参数值。
  31. 根据权利要求27所述的网络设备，其特征在于，所述处理单元根据所述第一提示信息获取所述终端设备的功率回退值，具体用于：
    响应所述第一提示信息，在网络设备的存储器中查找所述终端设备的功率回退值。
  32. 根据权利要求27所述的网络设备，其特征在于，所述第一提示信息包括所述终端设备的功率回退值；
    所述处理单元根据所述第一提示信息获取所述终端设备的功率回退值，具体用于：
    在所述第一提示信息中获取所述功率回退值。
  33. 一种终端设备，其特征在于，包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行如权利要求1-10任一项所述的方法中的步骤的指令。
  34. 一种网络设备，其特征在于，包括处理器、存储器、收发器，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行如权利要求11-16任一项所述的方法中的步骤的指令。
  35. 一种计算机可读存储介质，其特征在于，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求1-10任一项所述的方法。
  36. 一种计算机可读存储介质，其特征在于，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求11-16任一项所述的方法。
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