CN114402664B

CN114402664B - Method for power backoff, terminal device and network device

Info

Publication number: CN114402664B
Application number: CN201980100355.9A
Authority: CN
Inventors: 邢金强
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2024-01-05
Anticipated expiration: 2039-11-08
Also published as: WO2021088048A1; CN114402664A

Abstract

The embodiment of the application discloses a method for power back-off, a terminal device and a network device, wherein the method for power back-off comprises the following steps: determining a first parameter value of the terminal equipment in a first time window; if the first parameter value is greater than or equal to a preset parameter threshold, generating first prompt information, wherein the first prompt information is used for indicating the terminal equipment to trigger a power backoff event; and sending the first prompt information to network equipment. The embodiment of the application can estimate the power backoff event possibly happening in the future and then prompt the network equipment so that the network equipment takes measures to avoid radio link failure.

Description

Method for power backoff, terminal device and network device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method for power backoff, a terminal device, and a network device.

Background

In the communication system, if the average radiation value of the terminal equipment in a certain period exceeds the radiation index specified by the regulations, the terminal equipment performs power rollback to reduce the transmitting power of the terminal, thereby avoiding the harm of the terminal equipment to human bodies caused by electromagnetic radiation. However, when 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 is instantaneously deteriorated, resulting in that the network device cannot receive the uplink signal from the terminal device and the wireless link fails. Based on this, how to avoid radio link failure caused by instantaneous degradation of radio link quality is a technical problem that needs to be solved currently.

Disclosure of Invention

The embodiment of the application provides a method for power back-off, a terminal device and network equipment, which can predict a power back-off event possibly happening in the future and then prompt the network equipment so that the network equipment can take measures to avoid radio link failure.

In a first aspect, embodiments of the present application provide a method for power backoff, including:

determining a first parameter value of the terminal equipment in a first time window;

if the first parameter value is greater than or equal to a preset parameter threshold, generating first prompt information, wherein the first prompt information is used for indicating the terminal equipment to trigger a power backoff event;

and sending the first prompt information to network equipment.

In a second aspect, embodiments of the present application provide a method for power backoff, comprising:

receiving first prompt information sent by terminal equipment, wherein the first prompt information is used for indicating the terminal equipment to trigger a power backoff event, the first prompt information is generated when the terminal equipment judges that a first parameter value is greater than or equal to a preset parameter threshold, and the first parameter value is a first parameter value, within a first time window, of the terminal equipment, which is determined by the terminal equipment;

Acquiring a power back-off value of the terminal equipment according to the first prompt information;

and if the power back-off value is larger than a preset power back-off threshold, reducing a third parameter value of the terminal equipment.

In a third aspect, an embodiment of the present application provides a terminal device, where the terminal device has a function designed to implement the method in the first aspect. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above. In one possible design, the terminal device includes a processor configured to support the terminal device to perform the corresponding functions of the above-described method. Further, the terminal device may further comprise a communication interface for supporting communication between the terminal device and the network device. Further, the terminal device may also include a memory for coupling with the processor, which holds the program instructions and data necessary for the terminal device.

In a fourth aspect, an embodiment of the present application provides a network device, where the network device has a function designed to implement the method in the second aspect. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above. In one possible design, the network device includes a processor configured to support the network device to perform the corresponding functions of the methods described above. Further, the network device may further comprise a transceiver for supporting communication between the network device and the terminal device. Further, the network device may also include a memory for coupling with the processor, which holds the program instructions and data necessary for the network device.

In a fifth aspect, embodiments of the present application provide a terminal device comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in any of the methods of the first aspect of the embodiments of the present application.

In a sixth aspect, embodiments of the present application provide a network device comprising a processor, a memory, a transceiver, and one or more programs, wherein the one or more programs are stored in the memory and configured for execution by the processor, the programs comprising instructions for performing steps in any of the methods of the second aspect of embodiments of the present application.

In a seventh aspect, embodiments of the present application provide a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform some or all of the steps as described in any of the methods of the first aspect of embodiments of the present application.

In an eighth aspect, embodiments of the present application provide a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform some or all of the steps as described in any of the methods of the second aspect of embodiments of the present application.

In a ninth aspect, embodiments of the present application provide a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps described in any of the methods of the first aspect of embodiments of the present application. The computer program product may be a software installation package.

In a tenth aspect, embodiments of the present application provide a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps as described in any of the methods of the second aspect of the embodiments of the present application. The computer program product may be a software installation package.

It can be seen that, in the embodiment of the present application, the terminal device may determine a first parameter value of the terminal device within the first time window, and if the first parameter value is greater than or equal to a preset parameter threshold, the terminal device predicts that a power backoff event may occur in the future, so as to generate first prompt information, where the first prompt information is used to instruct the terminal device to trigger the power backoff event. And the terminal equipment sends the first prompt information to the network equipment so that the network equipment can take measures to avoid radio link failure.

Drawings

The drawings that accompany the embodiments or the prior art description can be briefly described as follows.

Fig. 1 is a system architecture diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic diagram of power backoff in a conventional communication system according to an embodiment of the present application;

fig. 3 is a flowchart of a method for power backoff according to an embodiment of the present application;

FIG. 4A is a schematic diagram of a time window provided in 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 flow chart of another method for power backoff provided in an embodiment of the present application;

FIG. 6 is a schematic illustration of an irradiance provided in an embodiment of the present application;

fig. 7 is a flow chart of another method for power backoff provided in an embodiment of the present application;

fig. 8 is a schematic diagram of an uplink transmission time duty ratio according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a terminal device provided in an embodiment of the present application;

fig. 10 is a schematic structural diagram of another terminal device provided in an embodiment of the present application;

fig. 11 is a schematic structural diagram of a network device according to an embodiment of the present application;

Fig. 12 is a schematic structural diagram of another network device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: a long term evolution (Long Term Evolution, LTE) system, an LTE frequency division duplex (Frequency Division Duplex, FDD) system, an LTE time division duplex (Time Division Duplex, TDD) system, a long term evolution advanced (Advanced long term evolution, LTE-a) system, a New Radio (NR) system, an evolution system of the NR system, an LTE-based access to unlicensed spectrum on unlicensed frequency band (LTE-U) system, an NR-U system, a wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wiFi), a next generation communication system, or other communication system, and the like.

Generally, the number of connections supported by the conventional communication system is limited and easy to implement, however, with the development of communication technology, the mobile communication system will support not only conventional communication but also, for example, device-to-Device (D2D) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), inter-vehicle (Vehicle to Vehicle, V2V) communication, and the like, to which the embodiments of the present application can also be applied.

Exemplary, a communication system 100 to which embodiments of the present application apply 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 referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area. Alternatively, the network device 110 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in the LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a 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 evolution communication system, etc.

The communication system 100 further comprises 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 by wireless or wired connection. When the terminal device 120 is wirelessly connected with the network device 110, the terminal device may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; a PDA that can include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal device may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, or a terminal device in a future-evolving communication system, etc.

Optionally, D2D communication may be performed between the terminal device 120 and other terminal devices or user devices.

Alternatively, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

Fig. 1 shows an exemplary communication system 100, in which a network device 110 and two terminal devices 120 are included in the communication system 110. Alternatively, the communication system 100 may include a plurality of network devices and one or more terminal devices may be included in a coverage area of each network device, which is not limited in the embodiments of the present application.

Optionally, the communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In order to avoid the harm of terminal equipment (such as electromagnetic radiation equipment such as a mobile phone) to human bodies, strict index requirements are required on index parameters of electromagnetic radiation in the standard, and the terminal equipment cannot exceed the standard radiation quantity. For example, in the frequency band below 6GHz, the electromagnetic wave absorption ratio (Specific Absorption Rate, SAR) is an index parameter for measuring the electromagnetic radiation intensity of the terminal device to the human body. The SAR index is an average measured value of the terminal equipment in a certain period, the higher the transmission power of the terminal equipment is, the higher the SAR is, and the longer the uplink transmission time of the terminal equipment is, the higher the SAR is. For example, in the frequency band above 6GHz, the maximum allowed radiation (Maximum Permissible Emission, MPE) is an index parameter for measuring the intensity of electromagnetic radiation of the terminal device to the human body. The MPE index is an average measurement value of power density of the terminal equipment in a certain period of time and a certain area, and the higher the transmitting power of the terminal equipment is, the higher the MPE is.

On the basis, if the index parameter of the terminal equipment exceeds the standard radiation quantity, the terminal equipment reduces the transmitting power of the terminal equipment in a power back-off mode so as to reduce the index parameter of the terminal equipment. The power backoff technique refers to that the input power of a power amplifier of a terminal device is backed off by 6-10 decibels from a 1dB compression point (equivalent to the critical point of the linear region and the nonlinear region of the amplifier) and works at a level far smaller than the 1dB compression point, so that the power amplifier is far away from a saturation region and enters a linear working region, and the third-order intermodulation coefficient of the power amplifier is improved.

In a conventional communication system, taking the power backoff schematic diagram shown in fig. 2 as an example, the terminal device calculates the total radiation amount of the terminal device in a time window w at time t1, and if the total radiation amount exceeds the standard radiation amount specified by the rule, the terminal device is triggered to perform power backoff. By means of the power backoff, the sum of the radiation amounts of the terminal device in the next time window relative to the time window w can be reduced. However, when the power backoff value exceeds a certain value, the network device cannot receive the uplink signal sent by the terminal device, so that the uplink cannot be maintained, and a radio link failure occurs.

In view of the foregoing, embodiments of the present application propose the following embodiments, which are described in detail below with reference to the accompanying drawings.

Referring to fig. 3, fig. 3 is a method for power backoff according to an embodiment of the present application, which is applied to the above-mentioned exemplary communication system, and includes:

s301, the terminal equipment determines a first parameter value of the terminal equipment in a first time window.

The terminal device may count first parameter values of the terminal device within a first time window. For example, if the current time is within the first time window, the terminal device may count the first parameter values of the terminal device within the first time window.

Wherein the first parameter value may comprise any one of the following three parameters:

1. sum of the radiation amounts. The sum of the radiation amounts is the sum of the radiation amounts of the terminal equipment from the starting moment to the current moment of the first time window in the first time window. 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 the protocol, or the network device may send the indication information to the terminal device. The lengths of the different time windows may be the same or different, and are not limited in the embodiments of the present application. Taking the time window schematic diagram shown in fig. 4A as an example, there is a time window T1 and a time window T2, and it is assumed that the starting time of the time window T1 is 4s and the ending 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. If the current time is 6s, the first time window is T1, the terminal device may count the total radiation amount of the terminal device in the period of 4s to 6s, and determine the total radiation amount as the total radiation amount of the terminal device in the first time window. If the current time is 8s, the first time window is T1, and the terminal device may count the total radiation amount of the terminal device in the period of 4s to 8s (i.e., the whole first time window), and determine the total radiation amount as the total radiation amount of the terminal device in the first time window.

The sum of the radiation amounts can be obtained through the radio frequency transmitting power and the antenna gain of the terminal equipment. For example, if the transmission power of the terminal device is P and the antenna gain of the terminal device is a (a may be a gain in a certain direction), the sum of the radiation amounts may be regarded as p+a.

Wherein the second time window may be a next time window to the first time window.

In one implementation, the end time of the first time window is the start time of the second time window.

Taking the time window diagram shown in fig. 4B as an example, assuming that the end time of the time window T1 is 8s, the start time of the time window T2 is 8s.

In one implementation, the second time window and the first time window partially overlap.

Taking the schematic diagram of the time window shown in fig. 4A as an example, 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. Assuming that the starting time of the time window T1 is 4s, and the ending 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 portion of the first time window and the second time window is a period of 7s to 8s.

2. Average radiation dose. The average radiation amount is the ratio between the sum of the radiation amounts and the length of the first time window. Taking the schematic diagram of the time window shown in fig. 4A as an example, if the current time is 6s, the first time window is T1, and the length of the first time window is 4s, that is, the difference between the end time of the first time window and the start time of the first time window, the terminal device may count the sum of the radiation amounts of the terminal device in the time period of 4s to 6s, and determine the ratio between the sum of the radiation amounts and the length of the first time window as the average radiation amount of the terminal device in the first time window. If the current time is 8s, the first time window is T1, the terminal device can count the total radiation amount of the terminal device in the period of 4s to 8s, and the ratio between the total radiation amount and the length of the first time window is determined as the average radiation amount of the terminal device in the first time window.

3. Average uplink transmit time duty cycle. The average uplink transmission time duty ratio is the average uplink transmission time duty ratio of the terminal device transmitting the uplink signal in the first time window.

S302, if the first parameter value is greater than or equal to a preset parameter threshold, the terminal equipment generates first prompt information, wherein the first prompt information is used for indicating the terminal equipment to trigger a power backoff event.

After the terminal device determines the first parameter value, the first parameter value may be compared with a preset parameter threshold, and when the first parameter value is greater than or equal to the preset parameter threshold, the terminal device predicts that a power backoff event may occur in the future, so that the terminal device may generate first prompt information.

In one implementation, the terminal device may generate first hint information for instructing the terminal device to trigger a power backoff event, and send the first hint information to the network device. After the network device receives the first prompt information, it may be determined that a power back-off event may occur in the future for the terminal device, and then the power back-off value of the terminal device is searched in a memory of the network device. That is, the power back-off value of the terminal device is fixed, and the terminal device may report the power back-off value of the terminal device to the network device at the initial access. After the terminal device reports the power back-off value to the network device, if the terminal device determines that the power back-off event may occur in the future, the terminal device may not need to report the power back-off value, but may send first prompt information, such as power back-off alarm information, to the network device, for indicating that the terminal device triggers the power back-off event.

In one implementation, the first hint information includes a power backoff value of the terminal device, the power backoff value being used to instruct the terminal device to trigger a power backoff event. Or the first prompt message carries the power back-off value of the terminal equipment, and the first prompt message is used for indicating the terminal equipment to trigger the power back-off event. The terminal device sends the first prompt information containing the power back-off value of the terminal device to the network device, or the terminal device sends the first prompt information carrying the power back-off value of the terminal device to the network device. After the network device receives the first prompt information, it may be determined that a power back-off event may occur in the future by the terminal device, so as to obtain a power back-off value contained in the first prompt information. That is, the power back-off value of the terminal device is uncertain, for example, directly related to the currently adopted beam (beam), so that the terminal device may send the first prompt information and the power back-off value to be adopted by the terminal device in the future to the network device, and the network device determines that the power back-off event may occur in the future by the terminal device according to the first prompt information, so as to further determine whether the power back-off value sent by the terminal device is greater than a preset power back-off threshold. Optionally, the terminal device may only send the power back-off value to be adopted by the terminal device in the future to the network device, and when the network device receives the power back-off value, it may determine that a power back-off event may occur in the future to the terminal device, so as to determine whether the power back-off value sent by the terminal device is greater than a preset power back-off threshold.

The preset parameter threshold may be preset or agreed by a protocol, or may be sent by the network device to the terminal device through indication information.

In one implementation, the predetermined parameter threshold is a predetermined radiation level threshold when the first parameter value is a radiation level sum. After the terminal equipment determines the radiation amount sum of the terminal equipment in the first time window, the terminal equipment can judge whether the determined radiation amount sum is larger than or equal to a preset radiation amount threshold, and when the determined radiation amount sum is larger than or equal to the preset radiation amount threshold, the terminal equipment can generate first prompt information; when the obtained radiation amount sum is determined to be smaller than the preset radiation amount threshold, the terminal equipment can detect the radiation amount sum of the terminal equipment from the starting moment to the current moment of the first time window in real time.

The preset radiation quantity threshold is determined according to the standard radiation quantity, and is smaller than or equal to the standard radiation quantity. In order to avoid the harm of terminal equipment (such as electromagnetic radiation equipment such as a mobile phone) to human bodies, strict index requirements are required on index parameters of electromagnetic radiation in the standard, and the terminal equipment cannot exceed the standard radiation quantity.

For example, the difference between the preset radiation level threshold and the standard radiation level may be less than the preset radiation level threshold, or the ratio between the preset radiation level threshold and the standard radiation level may be less than the preset ratio threshold.

In one implementation, when the first parameter value is an average radiation level, the preset parameter threshold is a preset average radiation level. After the terminal equipment determines the average radiation amount of the terminal equipment in the first time window, the terminal equipment can judge whether the determined average radiation amount is larger than or equal to the preset average radiation amount, and when the determined average radiation amount is larger than or equal to the preset average radiation amount threshold, the terminal equipment can generate first prompt information; when the obtained average radiation amount is determined to be smaller than the preset average radiation amount threshold, the terminal equipment can detect the average radiation amount of the terminal equipment from the starting moment to the current moment of the first time window in real time.

The preset average radiation quantity threshold is determined according to the ratio between the standard radiation quantity and the length of the first time window, and is smaller than or equal to the ratio between the standard radiation quantity and the length of the first time window.

For example, the difference between the preset average radiation level threshold and the ratio may be less than the preset radiation level threshold, or the ratio between the preset average radiation level threshold and the ratio may be less than the preset ratio threshold.

In one implementation, the sum or average radiation may be MPE when the operating frequency of the terminal device is greater than a preset frequency threshold. When the operating frequency of the terminal device is less than or equal to the preset frequency threshold, the sum of the radiation amounts or the average radiation amount may be SAR. The preset frequency threshold may be 6GHz, for example.

In one implementation, when the first parameter value is an average uplink transmission time duty ratio of the terminal device for transmitting the uplink signal in the first time window, the preset parameter threshold may be a preset transmission time duty ratio threshold.

S303, the terminal equipment sends first prompt information to the network equipment.

S304, the network equipment acquires the power back-off value of the terminal equipment according to the first prompt information.

In one implementation, the power back-off value of the terminal device is fixed, the terminal device may report the power back-off value of the terminal device to the network device at initial access, and the network device stores the power back-off value of the terminal device in a memory of the network device. On the basis, after the network equipment receives the first prompt information, the power back-off value of the terminal equipment can be searched in the memory of the network equipment.

In one implementation, if the first hint information includes or carries a power back-off value of the terminal device, after the network device receives the first hint information, the network device may acquire the power back-off value included or carried by the first hint information.

And S305, if the power back-off value is larger than the preset power back-off threshold, the network equipment reduces a third parameter value of the terminal equipment.

When the power back-off value is greater than the preset power back-off threshold, the base station may not receive the uplink signal of the terminal, so that the uplink cannot be maintained, and a radio link failure occurs. Based on this, the network device may decrease the third parameter value of the terminal device to avoid triggering a power backoff event by the terminal device in the future. The manner in which the network device reduces the third parameter value of the terminal device may include two types of:

1. when the first parameter value comprises a sum of radiation amounts or an average radiation amount, the network device may reduce a transmit power of the terminal device and/or reduce an uplink scheduling time length of the terminal device. In the embodiment of the application, the radiation amount of the terminal equipment can be reduced by reducing the transmitting power of the terminal equipment and/or reducing the uplink scheduling time length of the terminal equipment.

2. When the first parameter value is the average uplink transmission time duty ratio, the network device may reduce the uplink scheduling time length of the terminal device. In the embodiment of the application, the uplink transmitting time duty ratio of the terminal equipment can be reduced by reducing the uplink scheduling time length of the terminal equipment.

The preset power back-off threshold may be a maximum power back-off value that the network device can bear when the network device is configured according to the capability of the network device, i.e. the network device maintains a radio link.

In one implementation, after the terminal device sends the first prompt message to the network device, a second parameter value of the terminal device within a second time window may be determined. And if the second parameter value is smaller than the preset parameter threshold, the terminal equipment generates second prompt information, wherein the second prompt information is used for requesting the network equipment to suspend reducing the third parameter value of the terminal equipment. The terminal device sends the second prompt information to the network device, and the network device can suspend to reduce the third parameter value of the terminal device in response to the second prompt information. The second parameter value may include a sum of radiation amounts, an average radiation amount, or an average uplink transmission time duty ratio of the terminal device in the second time window.

Taking the second parameter value as the sum of the radiation amounts as an example, referring to fig. 4A, there is a time window T1 and a time window T2, and it is assumed that the starting time of the time window T1 is 4s and the ending 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. If the current time is 6s, the first time window is T1, the terminal device may count the total radiation amount of the terminal device in the period of 4s to 6s, and determine the total radiation amount as the total radiation amount of the terminal device in the first time window. If the sum of the radiation amounts is larger than or equal to a preset radiation amount threshold, the terminal equipment generates first prompt information and sends the first prompt information to the network equipment, the network equipment determines a power back-off value of the terminal equipment according to the first prompt information, and if the power back-off value is larger than the preset power back-off threshold, the network equipment reduces the transmitting power of the terminal equipment and/or reduces the uplink scheduling time length of the terminal equipment. After the current time reaches 7s (i.e. the starting time of the second time window T2), the terminal device may determine the sum of the radiation amounts of the terminal device in the second time window, and if the sum of the radiation amounts of the terminal device in the second time window is smaller than the preset radiation amount threshold, which indicates that the terminal device predicts that no power backoff event occurs, the terminal device generates a second prompt message, and sends the second prompt message to the network device. After the network device receives the second prompt message, it may suspend to reduce the third parameter value of the terminal device, for example, suspend to reduce the transmit power of the terminal device, and/or reduce the uplink scheduling time length of the terminal device.

In the application, the terminal device may determine a first parameter value of the terminal device in a first time window, and if the first parameter value is greater than or equal to a preset parameter threshold, the terminal device may generate first prompt information, where the first prompt information is used to instruct the terminal device to trigger a power backoff event. And then the terminal equipment sends the first prompt information to the network equipment, the network equipment can acquire the power back-off value of the terminal equipment according to the first prompt information, and if the power back-off value is larger than a preset power back-off threshold, the network equipment reduces a third parameter value of the terminal equipment, so that the terminal equipment can be prevented from carrying out power back-off in the future, and further, the radio link failure is avoided.

Referring to fig. 5, fig. 5 is another method for power backoff according to an embodiment of the present application, which is applied to the above-mentioned exemplary communication system, and includes:

s501, the terminal equipment determines the sum or average radiation quantity of the terminal equipment in a first time window.

S502, if the sum of the radiation amounts is greater than or equal to a preset radiation amount threshold, or the average radiation amount is greater than or equal to a preset average radiation amount threshold, the terminal equipment generates first prompt information, and the first prompt information is used for indicating the terminal equipment to trigger a power backoff event.

S503, the terminal equipment sends first prompt information to the network equipment.

S504, the network equipment acquires the power back-off value of the terminal equipment according to the first prompt information.

S505, if the power back-off value is greater than a preset power back-off threshold, the network device reduces the radiation amount of the terminal device.

For example, referring to the radiation amount diagram shown in fig. 6, L1 is the standard radiation amount, K1 is the preset radiation amount threshold, K1 < L1, and t1 is located in the first time window. Assuming that the current time is t1, the terminal device counts the total radiation amount of the terminal device from the starting time of the first time window to the time period of t1, and compares the total radiation amount with a preset radiation amount threshold K1. When the radiation amount sum is greater than or equal to a preset radiation amount threshold K1, the terminal device sends a first prompt message to the network device, that is, the terminal device informs the network device that a potential power backoff risk exists in a certain way before the radiation amount sum reaches a standard radiation amount L1. Here we define a relatively low threshold K1, that is, when the sum of the radiation amounts of the terminal devices reaches the threshold K1 at time t1, the terminal devices are triggered to report the first prompt information to the network device, and the power back-off value to be adopted when the sum of the radiation amounts of the subsequent terminal devices reaches the standard radiation amount L1 is reported to the network device. After receiving the first prompt information, the network device compares the power back-off value reported by the terminal device with a 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 can take a certain measure at time t2 to avoid the power back-off of the terminal device, and the measure can be to reduce the transmitting power of the terminal device or reduce the uplink transmitting time of the terminal device, etc. so as to avoid the occurrence of link failure. The time t2 may be a 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 may be a 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, which is not specifically limited by the embodiment of the present application.

Further, at a certain moment of the next time window (i.e. the second time window), the terminal device may count the sum of the radiation amounts of the terminal device in the second time window, and if the sum of the radiation amounts is smaller than the preset radiation amount threshold K1, the terminal device sends second prompt information to the network device, and the network device may suspend reducing the radiation amount of the terminal device in response to the second prompt information, for example, suspend reducing the transmitting power of the terminal device, or suspend reducing the uplink transmitting time of the terminal device, etc.

In the application, the terminal equipment determines the total radiation amount or the average radiation amount of the terminal equipment in a first time window, if the total radiation amount is larger than or equal to a preset radiation amount threshold or the average radiation amount is larger than or equal to a preset average radiation amount threshold, the terminal equipment generates first prompt information, the terminal equipment sends the first prompt information to the network equipment, the network equipment acquires the power back-off value of the terminal equipment according to the first prompt information, and if the power back-off value is larger than the preset power back-off threshold, the network equipment reduces the radiation amount of the terminal equipment, so that the power back-off of the terminal equipment in the future can be avoided, and further the radio link failure is avoided.

Referring to fig. 7, fig. 7 is another method for power backoff according to an embodiment of the present application, which is applied to the above-mentioned exemplary communication system, and includes:

s701, the terminal equipment determines the average uplink transmitting time duty ratio of the terminal equipment in a first time window.

S702, if the average uplink transmission time duty ratio is greater than or equal to a preset transmission time duty ratio threshold, the terminal equipment generates first prompt information, wherein the first prompt information is used for indicating the terminal equipment to trigger a power backoff event.

S703, the terminal equipment sends first prompt information to the network equipment.

S704, the network equipment acquires the power back-off value of the terminal equipment according to the first prompt information.

And S705, if the power back-off value is larger than a preset power back-off threshold, the network equipment reduces the uplink transmission time duty ratio of the terminal equipment.

With the uplink transmission time duty ratio diagram shown in fig. 8, L2 is the maximum uplink transmission time duty ratio capability reported by the terminal device, K2 is the preset transmission time duty ratio threshold, K2 is less than L2, and t1 is located in the first time window. Assuming that the current time is t1, the terminal device counts the average uplink transmission time duty ratio of the period from the starting time of the first time window to t1, and compares the average uplink transmission time duty ratio with a preset transmission time duty ratio threshold K2. When the average uplink transmission time duty ratio is greater than or equal to a preset transmission time duty ratio threshold K2, the terminal device sends first prompt information to the network device, that is, the terminal device informs the network device that a potential power backoff risk exists in a certain mode before the average uplink transmission time duty ratio reaches a maximum uplink transmission time duty ratio L2 reported by the terminal device. Here we define a relatively low threshold K2, that is, when the sum of the radiation amounts of the terminal devices reaches the threshold K2 at time t1, the terminal device is triggered to report the first prompt information to the network device, and the power back-off value to be adopted when the average uplink transmission time ratio of the subsequent terminal device reaches the maximum uplink transmission time ratio L2 reported by the terminal device is reported to the network device. After receiving the first prompt information, the network device compares the power back-off value reported by the terminal device with a 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 can take a certain measure at time t2 to avoid the terminal from carrying out power back-off, and the measure can reduce the uplink transmission time of the terminal device or does not schedule the terminal device to carry out uplink transmission, so as to avoid the occurrence of link failure. The time t2 may be a 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 may be a 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, which is not specifically limited by the embodiment of the present application.

Further, at a certain moment of the next time window (i.e. the second time window), the terminal device may count an average uplink transmission time duty ratio of the terminal device in the second time window, and if the average uplink transmission time duty ratio is smaller than a preset transmission time duty ratio threshold K2, the terminal device sends second prompt information to the network device, and the network device may suspend to reduce the uplink transmission time duty ratio of the terminal device in response to the second prompt information, for example, suspend to reduce the uplink transmission time of the terminal device or not schedule the terminal device to perform uplink transmission any more.

In the application, the terminal equipment determines the average uplink transmission time duty ratio of the terminal equipment in the first time window, if the average uplink transmission time duty ratio is greater than or equal to a preset transmission time duty ratio threshold, the terminal equipment generates first prompt information, the terminal equipment sends the first prompt information to the network equipment, the network equipment acquires the power back-off value of the terminal equipment according to the first prompt information, and if the power back-off value is greater than a preset power back-off threshold, the network equipment reduces the uplink transmission time duty ratio of the terminal equipment, so that the terminal equipment can be prevented from carrying out power back-off in the future, and further radio link failure is avoided.

The foregoing description of the solution of the embodiment of the present application has been mainly presented from the perspective of interaction between network elements. It will be appreciated that the terminal device and the network device, in order to implement the above-mentioned functions, comprise corresponding hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The embodiment of the present application may divide functional units of the terminal device according to the above method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated in one processing unit. The integrated units described above may be implemented either in hardware or in software program modules. It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice.

In case of integrated units, fig. 9 shows a block diagram of one possible functional unit composition of the terminal device involved in the above embodiment, and the terminal device 900 includes: a processing unit 902 and a communication unit 903. The processing unit 902 is configured to control and manage actions of the terminal device, for example, the processing unit 902 is configured to support the terminal device to perform step S301 and step S302 in fig. 3, step S501 and step S502 in fig. 5, step S701 and step S702 in fig. 7, and/or other processes for 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 further comprise a storage unit 901 for storing program code 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 circuit, a radio frequency chip, etc., and the storage unit 901 may be a memory.

The processing unit 902 is configured to determine a first parameter value of the terminal device within a first time window, and if the first parameter value is greater than or equal to a preset parameter threshold, generate first prompt information, where the first prompt information is used to instruct the terminal device to trigger a power backoff event;

The communication unit 903 is configured to send the first prompt information to a network device.

In one possible example, the first hint information includes a power backoff value of the terminal device.

In one possible example, the first parameter value includes a sum of radiation amounts or an average radiation amount, the sum of radiation amounts being a sum of radiation amounts of the terminal device from a start time of a first time window to a current time within the first time window, the average radiation amount being a ratio between the sum of radiation amounts and a length of the first time window;

when the first parameter value is the sum of the radiant quantity, the preset parameter threshold is a preset radiant quantity threshold; or (b)

And when the first parameter value is the average radiation quantity, the preset parameter threshold is the preset average radiation quantity.

In one possible example, the preset radiation level threshold is determined according to a standard radiation level, the preset radiation level threshold being less than or equal to the standard radiation level.

In one possible example, the difference between the preset radiation amount threshold and the standard radiation amount is less than a preset radiation threshold, or the ratio between the preset radiation amount threshold and the standard radiation amount is less than a preset ratio threshold.

In one possible example, the first parameter value is an average uplink transmission time ratio of the terminal device transmitting an uplink signal in the first time window, and the preset parameter threshold is a preset transmission time ratio threshold.

In a possible example, the processing unit 902 is further configured to determine, after the communication unit 903 sends the first prompt information to the network device, a second parameter value of the terminal device in a second time window, and if the second parameter value is smaller than the preset parameter threshold, generate a second prompt information, where the second prompt information is used to request the network device to suspend reducing a third parameter value of the terminal device;

the communication unit 903 is further configured to send the second prompt information to the network device.

In one possible example, the end time of the first time window is the start time of the second time window.

In one possible example, the second time window and the first time window partially overlap.

In one possible example, the preset parameter threshold is preconfigured or agreed, or the preset parameter threshold is sent by the network device to the terminal device through indication information.

When the processing unit 902 is a processor, the communication unit 903 is a communication interface, and the storage unit 901 is a memory, the terminal device according to the embodiment of the present application may be a terminal device shown in fig. 10.

In case of integrated units, fig. 11 shows a block diagram of one possible functional unit composition of the network device involved in the above embodiment, and the network device 1100 includes: a processing unit 1102 and a communication unit 1103. The processing unit 1102 is configured to control and manage actions of the network device, e.g., the processing unit 1102 is configured to support the network device to perform steps S304 and S305 in fig. 3, steps S504 and S505 in fig. 5, steps S704 and S705 in fig. 7, and/or other processes for the techniques described herein. The communication unit 1103 is configured to support communication between the network device and other devices, for example, communication with a terminal device. The network device may further comprise a storage unit 1101 for storing program code 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., and the storage unit 1101 may be a memory.

The communication unit 1103 is configured to receive a first prompt message sent by a terminal device, where the first prompt message is used to instruct the terminal device to trigger a power backoff event, the first prompt message is generated when the terminal device determines that a first parameter value is greater than or equal to a preset parameter threshold, and the first parameter value is a first parameter value, determined by the terminal device, of the terminal device in a first time window;

the processing unit 1102 is configured to obtain a 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, reduce a third parameter value of the terminal device.

the processing unit 1102 reduces a third parameter value of the terminal device, specifically:

And reducing the transmitting power of the terminal equipment and/or reducing the uplink scheduling time length of the terminal equipment.

In one possible example, the first parameter value is an average uplink transmission time duty cycle, and the processing unit 1102 decreases a third parameter value of the terminal device, specifically for:

and reducing the uplink scheduling time length of the terminal equipment.

In a possible example, the communication unit 1103 is further configured to receive, after the processing unit 1102 decreases the third parameter value of the terminal device, a second hint information sent by the terminal device, where the second hint information is used to request to suspend to decrease the third parameter value of the terminal device;

the processing unit 1102 is further configured to suspend reducing the third parameter value of the terminal device in response to the second prompting message.

In a possible example, the processing unit 1102 obtains a power back-off value of the terminal device according to the first hint information, specifically configured to:

and responding to the first prompt information, and searching the power back-off value of the terminal equipment in a memory of the network equipment.

In one possible example, the first hint information includes a power backoff value of the terminal device;

The processing unit 1102 obtains a power backoff value of the terminal device according to the first prompt message, and is specifically configured to:

and acquiring the power back-off value from the first prompt message.

When the processing unit 1102 is a processor, the communication unit 1103 is a transceiver, and the storage unit 1101 is a memory, the network device according to the embodiment of the present application may be a network device shown in fig. 12.

The embodiment of the application also provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, and the computer program makes a computer execute part or all of the steps described by the terminal device in the embodiment of the method.

Embodiments of the present application also provide a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, the computer program being operable to cause a computer to perform some or all of the steps described in the terminal device in the above-described method embodiments. The computer program product may be a software installation package.

The steps of a method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by executing software instructions by a processor. The software instructions may be comprised of corresponding software modules that may be stored in random access Memory (Random Access Memory, RAM), flash Memory, read Only Memory (ROM), erasable programmable Read Only Memory (Erasable Programmable ROM), electrically Erasable Programmable Read Only Memory (EEPROM), registers, hard disk, a removable disk, a compact disc Read Only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in an access network device, a target network device, or a core network device. It is of course also possible that the processor and the storage medium reside as discrete components in an access network device, a target network device, or a core network device.

Those of skill in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application may be implemented, in whole or in part, in software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. 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, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., 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 including one or more servers, data centers, etc. that can be integrated with the available medium. The usable medium may be a magnetic medium (e.g., a floppy Disk, a hard Disk, a magnetic tape), an optical medium (e.g., a digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

The foregoing embodiments have been provided for the purpose of illustrating the embodiments of the present application in further detail, and it should be understood that the foregoing embodiments are merely illustrative of the embodiments of the present application and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalents, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application are included in the scope of the embodiments of the present application.

Claims

1. A method for power backoff, comprising:

sending the first prompt information to network equipment; wherein after the first prompt message is sent to the network device, the method further includes:

determining a second parameter value of the terminal equipment in a second time window;

if the second parameter value is smaller than the preset parameter threshold, generating second prompt information, wherein the second prompt information is used for requesting the network equipment to suspend reducing a third parameter value of the terminal equipment;

Sending the second prompt message to the network equipment; wherein,

the ending time of the first time window is the starting time of the second time window; or alternatively

The second time window and the first time window partially overlap.

2. The method of claim 1, wherein the first hint information comprises a power backoff value for the terminal device.

3. Method according to claim 1 or 2, characterized in that the first parameter value comprises a sum of radiation amounts, which is the sum of radiation amounts of the terminal device from the starting moment to the current moment of a first time window within the first time window, or an average radiation amount, which is the ratio between the sum of radiation amounts and the length of the first time window;

when the first parameter value is the sum of the radiant quantity, the preset parameter threshold is a preset radiant quantity threshold; or alternatively, the first and second heat exchangers may be,

and when the first parameter value is the average radiation quantity, the preset parameter threshold is a preset average radiation quantity threshold.

4. A method according to claim 3, wherein the pre-determined radiation level threshold is determined from a standard radiation level, the pre-determined radiation level threshold being less than or equal to the standard radiation level.

5. The method of claim 4, wherein a difference between the pre-set radiation level threshold and the standard radiation level is less than a pre-set radiation level threshold or a ratio between the pre-set radiation level threshold and the standard radiation level is less than a pre-set ratio threshold.

6. The method according to claim 1 or 2, wherein the first parameter value is an average uplink transmission time ratio of the terminal device transmitting an uplink signal in the first time window, and the preset parameter threshold is a preset transmission time ratio threshold.

7. A method according to claim 1 or 2, characterized in that the pre-set parameter threshold is pre-configured or agreed upon by a protocol, or the pre-set parameter threshold is sent by the network device to the terminal device via an indication.

8. A method for power backoff, comprising:

if the power back-off value is larger than a preset power back-off threshold, reducing a third parameter value of the terminal equipment; wherein after the third parameter value of the terminal device is reduced, the method further includes:

receiving second prompt information sent by the terminal equipment, wherein the second prompt information is used for indicating to suspend to reduce a third parameter value of the terminal equipment, the second prompt information is generated when the terminal equipment judges that the second parameter value is smaller than the preset parameter threshold, and the second parameter value is a first parameter value, obtained by the terminal equipment, of the terminal equipment in a second time window;

suspending reducing the third parameter value of the terminal equipment in response to the second prompt message; wherein,

The second time window and the first time window partially overlap.

9. The method according to claim 8, wherein the first parameter value comprises a sum of radiation amounts or an average radiation amount, the sum of radiation amounts being a sum of radiation amounts of the terminal device from a start time of a first time window to a current time within the first time window, the average radiation amount being a ratio between the sum of radiation amounts and a length of the first time window;

The reducing the third parameter value of the terminal device includes:

10. The method of claim 8, wherein the first parameter value is an average uplink transmit time duty cycle, and wherein the reducing the third parameter value of the terminal device comprises:

and reducing the uplink scheduling time length of the terminal equipment.

11. The method of claim 8, wherein the obtaining the power backoff value of the terminal device according to the first hint information comprises:

12. The method of claim 8, wherein the first hint information includes a power backoff value for the terminal device;

the obtaining the power back-off value of the terminal device according to the first prompt information includes:

and acquiring the power back-off value from the first prompt message.

13. A terminal device is characterized by comprising a processing unit and a communication unit,

the processing unit is configured to determine a first parameter value of the terminal device in a first time window, and if the first parameter value is greater than or equal to a preset parameter threshold, generate first prompt information, where the first prompt information is used to instruct the terminal device to trigger a power backoff event;

The communication unit is used for sending the first prompt information to the network equipment; wherein,

the processing unit is further configured to determine a second parameter value of the terminal device within a second time window after the communication unit sends the first prompt information to the network device, and if the second parameter value is smaller than the preset parameter threshold, generate second prompt information, where the second prompt information is used to request the network device to suspend reducing a third parameter value of the terminal device;

the communication unit is further configured to send the second prompt information to the network device; wherein,

The second time window and the first time window partially overlap.

14. The terminal device of claim 13, wherein the first hint information includes a power backoff value for the terminal device.

15. The terminal device according to claim 13 or 14, wherein the first parameter value comprises a sum of radiation amounts, which is the sum of radiation amounts of the terminal device from a start time of a first time window to a current time within the first time window, or an average radiation amount, which is a ratio between the sum of radiation amounts and a length of the first time window;

When the first parameter value is the sum of the radiant quantity, the preset parameter threshold is a preset radiant quantity threshold;

16. The terminal device of claim 15, wherein the pre-determined radiation level threshold is determined based on a standard radiation level, the pre-determined radiation level threshold being less than or equal to the standard radiation level.

17. The terminal device of claim 16, wherein a difference between the pre-set radiation level threshold and the standard radiation level is less than a pre-set radiation level threshold or a ratio between the pre-set radiation level threshold and the standard radiation level is less than a pre-set ratio threshold.

18. The terminal device according to claim 13 or 14, wherein the first parameter value is an average uplink transmission time ratio of the terminal device transmitting an uplink signal in the first time window, and the preset parameter threshold is a preset transmission time ratio threshold.

19. A terminal device according to claim 13 or 14, wherein the pre-set parameter threshold is pre-configured or agreed upon, or the pre-set parameter threshold is sent by the network device to the terminal device via an indication.

20. A network device is characterized by comprising a processing unit and a communication unit,

the communication unit is configured to 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, the first prompt information is generated when the terminal device determines that a first parameter value is greater than or equal to a preset parameter threshold, and the first parameter value is a first parameter value, determined by the terminal device, of the terminal device in a first time window;

the processing unit is configured to obtain a 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, reduce a third parameter value of the terminal device; the communication unit is further configured to receive, after the processing unit decreases the third parameter value of the terminal device, second prompting information sent by the terminal device, where the second prompting information is used to instruct to suspend decreasing the third parameter value of the terminal device, the second prompting information is generated when the terminal device determines that the second parameter value is smaller than the preset parameter threshold, and the second parameter value is a first parameter value, determined by the terminal device, of the terminal device in a second time window;

The processing unit is further configured to suspend reducing a third parameter value of the terminal device in response to the second prompt message; wherein,

The second time window and the first time window partially overlap.

21. The network device of claim 20, wherein the first parameter value comprises a sum of radiation amounts or an average radiation amount, the sum of radiation amounts being a sum of radiation amounts of the terminal device from a start time of a first time window to a current time within the first time window, the average radiation amount being a ratio between the sum of radiation amounts and a length of the first time window;

the processing unit is configured to reduce a third parameter value of the terminal device, specifically:

22. The network device according to claim 20, wherein the first parameter value is an average uplink transmission time duty cycle, and the processing unit is configured to reduce a third parameter value of the terminal device, specifically configured to:

And reducing the uplink scheduling time length of the terminal equipment.

23. The network device of claim 20, wherein the processing unit is configured to obtain a power backoff value of the terminal device according to the first hint information, specifically configured to:

24. The network device of claim 20, wherein the first hint information includes a power backoff value of the terminal device;

the processing unit obtains the power back-off value of the terminal equipment according to the first prompt information, and is specifically configured to:

and acquiring the power back-off value from the first prompt message.

25. A terminal device comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-7.

26. A network device comprising a processor, a memory, a transceiver, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 8-12.

27. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-7.

28. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 8-12.