Communication method

Abstract

The invention provides a communication method executed by network equipment and a communication method executed by terminal equipment, and relates to the technical field of communication. The communication method executed by network equipment comprises the following steps: sending a first instruction containing first information to terminal equipment so as to set that the terminal equipment reports a maximum power fallback management event based on power management when working in an FR1 frequency band. According to the embodiment of the invention, the SAR management problem of the high-power terminal equipment working in the FR1 frequency band can be solved.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and more specifically, to communication methods performed by network devices and communication methods performed by terminal devices. Background Technology

[0002] High-power carrier aggregation refers to increasing the sum of the terminal's transmit power in two frequency bands from a maximum of 23dBm to a maximum of 27.8dBm in inter-band carrier aggregation. High-power carrier aggregation can increase signal coverage and penetration, solving deep coverage problems. However, it may cause the terminal's transmit power to exceed SAR (Specific Absorption Rate) regulatory requirements. The SAR solution supported by the 3GPP R18 standard specifies the use of a duty cycle adjustment scheme (also known as DPC (Delta Power Class)) for UEs operating in the FR1 band to address SAR issues.

[0003] Currently, for UEs operating in the FR1 band, adjusting the duty cycle is insufficient if high-power carrier aggregation technology is used. 3GPP discussions generally agree that the terminal can achieve full-slot transmission at a standard power of 23dBm (PC3), i.e., FDD (Frequency Division Duplexing) mode, which meets SAR requirements and has no system design margin. Therefore, the duty cycle adjustment scheme is as follows: when PC2 power is 26dBm, if the uplink duty cycle exceeds 50%, the UE's maximum transmit power is set back by 3dBm; when PC1.5 power is 29dBm, if the uplink duty cycle exceeds 25%, the UE's maximum transmit power is set back by 3dBm, and if the uplink duty cycle exceeds 50%, it is set back by 6dBm.

[0004] When a terminal device (UE) uses high-power carrier aggregation technology and its actual maximum transmit power is not an integer multiple of 23dBm (such as a high-power user equipment (HPUE) with a power of 27.8dBm), the duty cycle adjustment scheme cannot set a suitable SAR duty cycle threshold and maximum transmit power backoff value for the UE. Therefore, when the HPUE needs to solve SAR problems, it cannot perform appropriate processing and reporting.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this disclosure is to provide a communication method to solve the SAR management problem of high-power terminal equipment operating in the FR1 band.

[0007] According to a first aspect of the present disclosure, a communication method is provided, executed by a network device, comprising: sending a first instruction containing first information to a terminal device to set the terminal device to report a maximum power back-off management event based on power management when operating in the FR1 frequency band.

[0008] In an exemplary embodiment of this disclosure, the first instruction includes a power margin report configuration instruction for a radio resource control information element.

[0009] In an exemplary embodiment of this disclosure, the first information is used to set the first reporting parameter to a first value in the terminal device, so that when the terminal device is operating in the FR1 band, the first reporting parameter is the first value, and the second reporting parameter is the second value, the third information is used to report a maximum power back-off management event based on power management that occurs when the terminal device is operating in the FR1 band.

[0010] The first reporting parameter is used to set whether the terminal device reports the maximum power back-off management event based on power management when it is operating in the FR1 frequency band. The first value of the first reporting parameter is used to indicate that the terminal device reports the maximum power back-off management event based on power management when it is operating in the FR1 frequency band. The second reporting parameter is used to set whether the terminal device reports the power level change event when it is operating in the FR1 frequency band. The second value of the second reporting parameter is used to indicate that the terminal device does not report the power level change event when it is operating in the FR1 frequency band.

[0011] In an exemplary embodiment of this disclosure, the method further includes: receiving third information reported by the terminal device, the third information being used to record a maximum power back-off management event based on power management that occurs when the terminal device is operating in the FR1 band.

[0012] In an exemplary embodiment of this disclosure, the third information is located in the first two digits of the second line of the power headroom report MAC control element information sent by the terminal device. The third information includes the specific value of the maximum power back-off measured by the terminal device after the maximum power back-off management event based on power management.

[0013] In an exemplary embodiment of this disclosure, sending a first instruction to a terminal device includes: after receiving a capability reporting message from the terminal device that includes fourth information, sending a first instruction to the terminal device, wherein the fourth information is used to indicate that the terminal device supports the capability to report maximum power back-off management events based on power management when operating in the FR1 band.

[0014] In an exemplary embodiment of this disclosure, the fourth information includes a preset capability parameter that is a first value.

[0015] In an exemplary embodiment of this disclosure, the first instruction further includes second information, which is used to instruct the terminal device to report a subframe of a maximum power backoff management event based on power management, and to trigger a power threshold value for reporting the maximum power backoff management event based on power management.

[0016] In an exemplary embodiment of this disclosure, the method further includes: sending a first instruction containing fifth information to a terminal device to set the terminal device to report power level change events when operating in the FR1 band; the fifth information is used to set a second reporting parameter to a first value in the terminal device, so that when the terminal device is operating in the FR1 band, the first reporting parameter is at a second value, and the second reporting parameter is at a first value, the terminal device sends sixth information to the network device to report a power level change event when operating in the FR1 band; the first reporting parameter is used to set whether the terminal device reports a maximum power backoff management event based on power management when operating in the FR1 band; the second value of the first reporting parameter is used to indicate that the terminal device does not report a maximum power backoff management event based on power management when operating in the FR1 band; the second reporting parameter is used to set whether the terminal device reports a power level change event when operating in the FR1 band; the first value of the second reporting parameter is used to indicate that the terminal device reports a power level change event when operating in the FR1 band.

[0017] According to a second aspect of this disclosure, a communication method is provided, executed by a terminal device, the terminal device communicating with a network device, the network device executing the communication method as described above, the communication method comprising: responding to a first instruction containing first information, setting a first reporting parameter to a first value, the first information being used to set the terminal device to report a maximum power back-off management event based on power management when operating in the FR1 frequency band; executing maximum power back-off management based on power management when determining that it is currently operating in the FR1 frequency band and meets a first preset condition; and sending third information to the network device to report the maximum power back-off management event based on power management.

[0018] In an exemplary embodiment of this disclosure, the first preset condition includes a first reporting parameter being a first value, a second reporting parameter being a second value, and the current transmission power being greater than the standard power; wherein, the first reporting parameter is used to set whether the terminal device reports a maximum power back-off management event based on power management when operating in the FR1 frequency band, and the first value of the first reporting parameter is used to indicate that the terminal device reports a maximum power back-off management event based on power management when operating in the FR1 frequency band; the second reporting parameter is used to set whether a power level change event is reported when operating in the FR1 frequency band, and the second value of the second reporting parameter is used to indicate that a power level change event is not reported when operating in the FR1 frequency band.

[0019] In an exemplary embodiment of this disclosure, the first instruction further includes second information, which is used to instruct the terminal device to report a subframe of a maximum power backoff management event based on power management, and to trigger a power threshold value for reporting the maximum power backoff management event based on power management. The first preset condition also includes that the current power exceeds the power threshold value. Sending third information to the network device includes sending the third information in the subframe. The third information is located in the first two digits of the second line of the power margin report MAC control element information. The third information includes the specific value of the maximum power backoff measured after the maximum power backoff management event based on power management.

[0020] In an exemplary embodiment of this disclosure, prior to responding to the first instruction, the method further includes: sending a capability reporting message to the network device, including fourth information, to report the capability of the terminal device to report maximum power back-off management events based on power management when operating in the FR1 band.

[0021] In an exemplary embodiment of this disclosure, the fourth information includes a preset capability parameter that is a first value.

[0022] In an exemplary embodiment of this disclosure, the method further includes: responding to a first instruction containing fifth information, setting a second reporting parameter to a first value, wherein the fifth information is used to set the terminal device to report a power level change event when operating in the FR1 frequency band; performing a power level change when it is determined that the device is currently operating in the FR1 frequency band and meets a second preset condition; and sending a sixth message to the network device to report the power level change event.

[0023] In an exemplary embodiment of this disclosure, the second preset condition includes: the first reporting parameter is a second value, the second reporting parameter is a first value, and the current transmission power is greater than the standard power; wherein, the first reporting parameter is used to set whether to report a maximum power back-off management event based on power management when operating in the FR1 frequency band, and the second value of the first reporting parameter is used to indicate that a maximum power back-off management event based on power management is not reported when operating in the FR1 frequency band; the second reporting parameter is used to set whether to report a power level change event when operating in the FR1 frequency band, and the second value of the second reporting parameter is used to indicate that a power level change event is not reported when operating in the FR1 frequency band.

[0024] According to a third aspect of this disclosure, a communication device is provided, which is either a network device or a terminal device, the communication device comprising: a memory; and a processor coupled to the memory, the processor being configured to execute, based on instructions stored in the memory, a method as described above that is executed by a network device or a method that is executed by a terminal device.

[0025] According to a fourth aspect of this disclosure, a computer-readable storage medium is provided having a program stored thereon that, when executed by a processor, implements the method as described in any of the preceding claims.

[0026] This disclosure embodiment enables the terminal device to report maximum power back-off management events based on power management when operating in the FR1 band. This allows the terminal device to reduce power and resolve SAR issues using the maximum power back-off management (P-MPR) scheme when operating in the FR1 band, thereby solving the problem that terminal devices using high-power carrier aggregation technology cannot perform SAR management when operating in the FR1 band.

[0027] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0028] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0029] Figure 1 This is a schematic diagram of the structure of a communication system according to an embodiment of the present disclosure.

[0030] Figure 2 A flowchart of a communication method 200 in an embodiment of this disclosure is shown.

[0031] Figure 3 This is a flowchart of method 200 in an embodiment of this disclosure.

[0032] Figure 4 This is an interactive schematic diagram of method 200 in an embodiment of this disclosure.

[0033] Figure 5 This is an interactive schematic diagram of method 200 in an embodiment of this disclosure.

[0034] Figure 6 This is a flowchart of method 200 in an embodiment of this disclosure.

[0035] Figure 7 This is an interactive schematic diagram of method 200 in an embodiment of this disclosure.

[0036] Figure 8 This is a flowchart of another communication method disclosed herein.

[0037] Figure 9 This is a flowchart of the communication method 800 in an embodiment of this disclosure.

[0038] Figure 10 This is a flowchart of the communication method 800 in an embodiment of this disclosure.

[0039] Figure 11 A structural block diagram of a network device according to an embodiment of the present disclosure is shown.

[0040] Figure 12 A structural block diagram of a terminal device according to an embodiment of the present disclosure is shown.

[0041] Figure 13 This is a block diagram of a communication device according to an exemplary embodiment of the present disclosure. Detailed Implementation

[0042] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this disclosure more comprehensive and complete, and to fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a full understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced with one or more of the specific details omitted, or other methods, components, apparatus, steps, etc., can be employed. In other instances, well-known technical solutions are not shown or described in detail to avoid obscuring various aspects of this disclosure.

[0043] Furthermore, the accompanying drawings are merely illustrative of this disclosure, and the same reference numerals in the drawings denote the same or similar parts, thus repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0044] The exemplary embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0045] Figure 1 This is a schematic diagram of the structure of a communication system according to an embodiment of the present disclosure.

[0046] like Figure 1 As shown, the communication system architecture includes a radio access network and a core network. The radio access network may include at least one radio access network device (such as...). Figure 1 The network device 20 in the middle may also include at least one terminal (such as Figure 1Terminal 10 in the diagram. The terminal connects wirelessly to the wireless access network device, which in turn connects to the core network wirelessly or via a wired connection. The core network device and the wireless access network device can be independent physical devices, or the functions of the core network device and the logical functions of the wireless access network device can be integrated into the same physical device. Alternatively, a single physical device can integrate some of the functions of the core network device and some of the functions of the wireless access network device. Terminals can connect to each other, and wireless access network devices can connect to each other, via wired or wireless connections. Figure 1 This is just an illustration; the communication system may also include other network devices, such as wireless repeaters and wireless backhaul devices. Figure 1 Not shown in the image.

[0047] Network device 20 can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5th generation (5G) mobile communication system, a next-generation base station in a 6th generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system; it can also be a module or unit that performs some of the functions of a base station, for example, it can be a central unit (CU) or a distributed unit (DU). Network device 20 can be a macro base station, a micro base station, an indoor station, a relay node, or a donor node, etc. The embodiments of this disclosure do not limit the specific equipment technology or specific equipment form adopted by network device 20. For ease of description, the term "base station" will be used as a synonym for network device 20 in the following description.

[0048] Terminal 10 can also be referred to as terminal device, user equipment (UE), mobile station, mobile terminal, etc. For ease of description, it will be referred to as terminal device / UE in the following description. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments disclosed herein do not limit the specific device technology or form used in the terminal.

[0049] Base stations and terminals can be fixed in location or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed on aircraft, balloons, and satellites. The embodiments of this disclosure do not limit the application scenarios of the base stations and terminals.

[0050] The roles of base stations and terminals can be relative. For example, a helicopter or drone can be configured as a mobile base station. For terminals accessing the wireless access network via the helicopter or drone, the helicopter or drone is the base station; however, for the base station, the helicopter or drone is the terminal. That is, the base station and the helicopter or drone communicate via a wireless air interface protocol. Of course, the base station and the helicopter or drone can also communicate via an interface protocol between base stations. In this case, the helicopter or drone is also a base station relative to the base station. Therefore, both base stations and terminals can be collectively referred to as communication devices / communication equipment. Figure 1 The network device 20 in the text can be referred to as a communication device / communication equipment with base station functionality. Figure 1 Terminal 10 in the text can be referred to as a communication device / communication equipment with terminal function.

[0051] Communication between base stations and terminals, between base stations, and between terminals can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously. The embodiments of this disclosure do not limit the spectrum resources used for wireless communication.

[0052] In the embodiments of this disclosure, the functions of the base station can be executed by modules (such as chips) within the base station, or by a control subsystem that includes base station functions. This control subsystem, including base station functions, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal can be executed by modules (such as chips or modems) within the terminal, or by a device that includes terminal functions.

[0053] The technical solutions provided in this disclosure can be applied to wireless communication between communication devices. Wireless communication between communication devices can include: wireless communication between network devices and terminals, wireless communication between network devices, and wireless communication between terminals. In this disclosure, the term "wireless communication" can also be abbreviated as "communication," and the term "communication" can also be described as "data transmission," "information transmission," or "transmission."

[0054] Those skilled in the art will know that Figure 1 The number of terminals and network devices shown is merely illustrative; any number of terminals and network devices can be used as needed. This disclosure does not limit this.

[0055] Under the above system architecture, this disclosure provides a communication method that can be implemented by a network device in the above system architecture.

[0056] Figure 2 A flowchart of a communication method 200 in an embodiment of this disclosure is shown. Figure 2 The methods provided in the embodiments can be executed by a network device, such as a base station, but this disclosure is not limited thereto. Figure 2 As shown, the method 200 provided in this embodiment may include:

[0057] Step S1: Send a first instruction containing first information to the terminal device to set the terminal device to report the maximum power back-off management event based on power management when it is operating in the FR1 frequency band.

[0058] Since FR1 frequency is a low frequency band, the absorption rate of radiation is relatively low. The radiation level is usually controlled by adjusting the duty cycle (i.e., DPC scheme), which maintains communication performance, is simpler and suitable for low frequency communication environments. That is, the average radiation level of the equipment is controlled by adjusting the active time and sleep time during communication to meet SAR requirements.

[0059] Maximum power back-off management based on power management can be abbreviated as P-MPR (Power Management Maximum Power Reduction). This method is specified by the 3GPP standard for application in the FR2 band, i.e., the millimeter-wave band. The P-MPR scheme controls the radiation level by dynamically managing the maximum output power (Max Power Reduction, MPR) of the device. When the device is close to a human body, the UE will dynamically adjust the maximum output power according to the current environment and usage to ensure that the SAR value is within the allowable range. Compared with the DPC scheme, the P-MPR method is more flexible. Unlike the DPC scheme, which can only set the power back-off value to 0 / 3 / 6dBm, the P-MPR method can determine the specific value of the transmit power change (0-12dBm) based on the terminal device. For example, a 27.8dBm HPUE can reduce the power by 4.8dBm to 23dBm (the standard power in the current specification) under the P-MPR scheme.

[0060] This disclosure embodiment enables the terminal device to report maximum power back-off management events based on power management when operating in the FR1 band. This allows the terminal device to reduce power and resolve SAR issues using the maximum power back-off management (P-MPR) scheme when operating in the FR1 band, thereby solving the problem that terminal devices using high-power carrier aggregation technology cannot perform SAR management when operating in the FR1 band.

[0061] In an exemplary embodiment, the first instruction includes a Radio Resource Control (RRC) Information Element Power Headroom Report Configuration instruction (RRC IE PHR-config). RRC IE PHR-config is an information element in an RRC message used to configure parameters for the UE to report power headroom to the base station. Power headroom refers to the amount of power the UE can currently increase relative to its maximum allowed transmission power. The base station can use the power headroom reported by the UE to adjust the UE's transmission power to ensure good signal quality and network performance. Under normal configuration, these parameters include settings such as the triggering conditions for the UE to report power headroom, the reporting period, and the reporting offset, as well as instructions on how the UE should feed back power headroom information to the base station. After receiving these PHR configurations, the UE reports its power headroom to the base station according to the corresponding conditions as instructed.

[0062] In this embodiment of the disclosure, a first parameter mpe-Reporting-FR1-r19 is added to the RRC IE PHR-config command. When the first parameter mpe-Reporting-FR1-r19 is set to a preset value (e.g., 1), first information is generated to instruct the UE to use the P-MPR method for power management when operating in the FR1 band, and to report a P-MPR event after power management. That is, the base station instructs the UE whether to report a P-MPR event through the value of the RRC parameter (mpe-Reporting-FR1) in the RRC IE PHR-config command.

[0063] Figure 3 This is a flowchart of method 200 in an embodiment of this disclosure.

[0064] refer to Figure 3 In an exemplary embodiment, method 200 may further include step S2: receiving third information reported by the terminal device, the third information being used to record a maximum power back-off management event based on power management that occurs when the terminal device is operating in the FR1 frequency band.

[0065] In an exemplary embodiment, the first information is used to set the first reporting parameter to a first value in the terminal device, so that when the terminal device is operating in the FR1 band, the first reporting parameter is at the first value, and the second reporting parameter is at the second value, the terminal device sends third information to the network device. The third information is used to report a maximum power backoff management event based on power management that occurs when the terminal device is operating in the FR1 band. The first reporting parameter is used to set whether the terminal device reports a maximum power backoff management event based on power management when operating in the FR1 band, and the first value of the first reporting parameter is used to indicate that the terminal device reports a maximum power backoff management event based on power management when operating in the FR1 band. The second reporting parameter is used to set whether the terminal device reports a power level change event when operating in the FR1 band, and the second value of the second reporting parameter is used to indicate that the terminal device does not report a power level change event when operating in the FR1 band.

[0066] In an exemplary embodiment, the first reporting parameter is mpe-Reporting-FR1, and the second reporting parameter is dpc-Reporting-FR1. The default values ​​for both the first and second reporting parameters can be set to 0, i.e., the first value is set to 1 and the second value to 0. The ability to configure the UE to use P-MPR for power management and report P-MPR events can be configured by modifying the value of the first reporting parameter.

[0067] In an exemplary embodiment, the third information is located in the first two characters of the second line of the Power Headroom Report MAC Control Element (PHR MAC CE) sent by the terminal device. The third information includes the specific value of the maximum power back-off measured by the terminal device after the maximum power back-off management event based on power management.

[0068] For example, a network device (base station) can transmit the first information by setting the first parameter mpe-Reporting-FR1-r19 to 1 in the RRC IE PHR-config command sent to the UE; after receiving the first command, the UE sets the first reporting parameter mpe-Reporting-FR1 to 1, at which point: mpe-Reporting-FR1 = 1, dpc-Reporting-FR1 = 0.

[0069] When the UE is operating in the FR1 band, if it is determined that the power needs to be reduced to meet the SAR requirements based on preset conditions, after reading the parameters mpe-Reporting-FR1=1 and dpc-Reporting-FR1=0, it selects to use the P-MPR method to reduce the power, and after reducing the power, it reports the P-MPR event to the base station through third information. The third information may include the specific P-MPR value measured by the UE, so that the base station can obtain the latest UE power information for overall management.

[0070] Table 1 shows the correspondence between specific P-MPR values ​​and third-party information.

[0071] Table 1:

[0072] Reported values Specific values ​​of the measured P-MPR unit 00 3≤PMP-R<6 dB 01 6≤PMP-R<9 dB 02 9≤PMP-R<12 dB 03 PMP-R≥12 dB

[0073] The first two digits of the second line of the PHR MAC CE message are used in existing standards to report power level changes in DPC events when operating at FR1 frequencies. In this embodiment, when the UE determines that it is operating in the FR1 band, the first reporting parameter is a first value, and the second reporting parameter is a second value, when SAR management is required (e.g., power is greater than the standard power), the P-MPR method is used for power backoff to meet SAR requirements, and the field originally set to report power level changes in DPC events is used to report P-MPR events. That is, the same field is used for reporting DPC power level changes and reporting specific P-MPR values. By using the same field to report DPC power level changes and specific P-MPR values, control can be performed using higher-layer parameters, which is more flexible.

[0074] After receiving the aforementioned third information, the base station determines, based on the first information in the previously sent first instruction (such as the value of the first parameter mpe-Reporting-FR1-r19) or other information, that the UE is currently reporting a P-MPR event, and thus identifies the field as the specific P-MPR value of the UE.

[0075] In an exemplary embodiment, the first instruction further includes second information, which is used to instruct the terminal device to report a subframe of a maximum power backoff management event based on power management, and a power threshold value that triggers the reporting of the maximum power backoff management event based on power management.

[0076] The second piece of information can be passed, for example, by setting the value of the second parameter MPE-Config-FR1-r19 in the RRC IE PHR-config directive. That is, the first directive can be:

[0077] RRC IE PHR-config(mpe-Reporting-FR1-r19,MPE-Config-FR1-r19), where the value of the first parameter mpe-Reporting-FR1-r19 is used to indicate whether the UE should report P-MPR events, and the value of the second parameter MPE-Config-FR1-r19 is used to indicate the power threshold value for the UE to report P-MPR events and the subframe for reporting P-MPR events.

[0078] In this embodiment, two parameters are added to the RRC IE PHR-config: the first parameter mpe-Reporting-FR1-r19 and the second parameter MPE-Config-FR1-r19. If the first parameter mpe-Reporting-FR1-r19 is already configured (set to the first value, representing the first information), then the second parameter MPE-Config-FR1-r19 also needs to be configured (after configuration, it forms the second information).

[0079] After receiving the first instruction containing the second information, when the power reaches the power threshold indicated by the value of MPE-Config-FR1-r19, the UE performs P-MPR power management and reports the third information, including the specific value of P-MPR, to the base station through the subframe indicated by the value of MPE-Config-FR1-r19.

[0080] Figure 4 This is an interactive schematic diagram of method 200 in an embodiment of this disclosure.

[0081] refer to Figure 4 On the UE side, the first reporting parameter mpe-Reporting-FR1 has a default value of 0, and the second reporting parameter dpc-Reporting-FR1 has a default value of 0.

[0082] In step S41, the base station sends a first instruction to the UE. The first instruction includes first information and second information, for example, as follows:

[0083] RRC IE PHR-config(mpe-Reporting-FR1-r19,MPE-Config-FR1-r19), where the first parameter mpe-Reporting-FR1-r19 and the second parameter MPE-Config-FR1-r19 are both assigned values ​​to instruct the UE to report P-MPR events as required.

[0084] In step S42, after the UE receives the first instruction including the first information and the second information mentioned above, it modifies the value of the first reporting parameter mpe-Reporting-FR1 to 1 according to the first information and the second information.

[0085] In step S43, the UE determines whether it is operating in the FR1 band. If so, it proceeds to step S44 to determine whether the current transmit power exceeds the standard power specified by SAR. If not, it returns to step S43. If so, it proceeds to step S45 to use the P-MPR method to reduce the transmit power so that the transmit power is equal to the standard power specified by SAR.

[0086] In step S46, after the UE performs P-MPR management, it reports the P-MPR event through third information, which includes the specific P-MPR value recorded by the first two bits of the second line of the PHR MAC CE information.

[0087] Figure 4 The embodiment shown configures the UE to report P-MPR events by the network device / base station. In other embodiments, the base station can also configure the UE to report P-MPR events based on the UE's capability to report messages.

[0088] In an exemplary embodiment, sending the first instruction to the terminal device further includes: after receiving a capability reporting message including fourth information from the terminal device, sending the first instruction to the terminal device, wherein the fourth information is used to indicate that the terminal device supports the capability to report maximum power back-off management events based on power management when operating in the FR1 frequency band.

[0089] The fourth information is contained in the capability reporting message that the UE reports its capabilities to the base station. In an exemplary embodiment, the fourth information includes a preset capability parameter set to a first value.

[0090] A new preset capability parameter, tdd-MPE-P-MPR-Reporting-r19, can be defined for the UE to indicate whether the UE supports the capability of reporting P-MPR events in the FR1 band. A first value indicates that the UE supports the capability of reporting P-MPR events in the FR1 band, while a second value indicates that the UE does not support the capability of reporting P-MPR events in the FR1 band. Example values ​​for the first and second values ​​can be 1 and 0, or 0 and 1, respectively.

[0091] If the UE reports the information (i.e., the fourth information) with the preset capability parameter (tdd-MPE-P-MPR-Reporting-r19) set to the first value to the base station through the UE capability transfer (RRC) process, it indicates that the UE supports P-MPR event reporting in the FR1 band.

[0092] In an exemplary embodiment, a fourth piece of information can be reported through RRC IE MAC-Parameters (Radio Resource Control Information Element MAC Parameters), namely, adding information where tdd-MPE-P-MPR-Reporting-r19 is the first value to RRC IE MAC-Parameters.

[0093] Figure 5 This is an interactive schematic diagram of method 200 in an embodiment of this disclosure.

[0094] refer to Figure 5 ,and Figure 4 Compared to the embodiments shown, Figure 5 The embodiment shown includes step S40 before step S41: receiving a capability reporting message including fourth information from the terminal device.

[0095] The fourth information can be represented by the preset capability parameter tdd-MPE-P-MPR-Reporting-r19 being set to the first value. The fourth information can exist in the RRC IE MAC-Parameters (Radio Resource Control Information Element MAC Parameters) message reported by the UE to the base station.

[0096] Compared to directly configuring and reporting P-MPR events to the terminal device, configuring and reporting P-MPR events to the terminal device only after receiving the fourth message can avoid some terminal devices that do not support P-MPR power management in the FR1 band. After receiving the first instruction, they still perform DPC power management in the FR1 stage and report the DPC value through the first two bits of the second line of the PHR MAC CE message. At this time, the base station still thinks that the terminal device is reporting the P-MPR value in that bit, causing misjudgment.

[0097] In summary, by setting up a P-MPR event reporting mechanism for the UE in the FR1 band, a variety of SAR solutions are provided, enabling the UE to accurately report changes in maximum transmit power caused by SAR limitations.

[0098] Corresponding to the P-MPR event reporting settings, since method 200 improves the UE parameters and the communication method between the UE and the base station, it can also be configured to report DPC (Delta Power Class) events even when the UE is operating in the FR1 band. In the prior art, when the UE is operating in the FR1 band by default, it can only perform DPC management and report DPC events, without requiring configuration.

[0099] Figure 6 This is a flowchart of method 200 in an embodiment of this disclosure.

[0100] refer to Figure 6In an exemplary embodiment, method 200 further includes:

[0101] Step S3: Send a first instruction containing fifth information to the terminal device to set the terminal device to report power level change events when operating in the FR1 band. The fifth information is used to set the second reporting parameter to the first value in the terminal device, so that when the terminal device is operating in the FR1 band, the first reporting parameter is at the second value, and the second reporting parameter is at the first value, it sends a sixth information to the network device. The sixth information is used to report that a power level change event has occurred when the terminal device is operating in the FR1 band. The first reporting parameter is used to set whether the terminal device reports a maximum power backoff management event based on power management when operating in the FR1 band. The second value of the first reporting parameter is used to indicate that the terminal device does not report a maximum power backoff management event based on power management when operating in the FR1 band. The second reporting parameter is used to set whether the terminal device reports a power level change event when operating in the FR1 band. The first value of the second reporting parameter is used to indicate that the terminal device reports a power level change event when operating in the FR1 band.

[0102] Figure 7 This is an interactive schematic diagram of method 200 in an embodiment of this disclosure.

[0103] refer to Figure 7 On the UE side, the first reporting parameter mpe-Reporting-FR1 has a default value of 0, and the second reporting parameter dpc-Reporting-FR1 has a default value of 0.

[0104] In step S71, the base station sends a first instruction to the UE. The first instruction includes fifth information, in the form of, for example: RRC IEPHR-config(dcp-Reporting-FR1-r19). The parameter dcp-Reporting-FR1-r19 can be a first value. In some embodiments, the first instruction may also set the power threshold value for the UE to report DPC events and the subframe for reporting DPC events through other information; this disclosure does not impose limitations on this.

[0105] In step S72, after receiving the first instruction, the UE modifies the value of the second reporting parameter dpc-Reporting-FR1 to 1 according to the fifth information.

[0106] In step S73, the UE determines whether it is operating in the FR1 band. If so, it proceeds to step S74 to determine whether the current transmit power exceeds the standard power specified by SAR. If not, it returns to step S73. If so, it proceeds to step S75 to reduce the transmit power using the DPC method so that the transmit power equals the standard power specified by SAR.

[0107] In step S76, after the UE performs DPC management, it reports the power change level through the sixth information. The sixth information includes the first two bits of the second line of PHRMAC CE information to record the specific value of the power change level (the specific value of DPC measured by the UE).

[0108] Table 2 shows the correspondence between power change levels and the sixth piece of information.

[0109] Reported values Measured DPC value unit 00 DPC=0 dB 03 DPC=3 dB 06 DPC=6 dB

[0110] In an exemplary embodiment, the sixth information corresponds to the same field as the third information, for example, the first two fields of the second line of the PHR MACCE message.

[0111] Therefore, by configuring the first and second reporting parameters through the first and fifth information, the terminal device can be configured to choose between power management / reporting P-MPR events in P-MPR mode and power management / reporting DPC events in DPC mode when operating in the FR1 band. This allows the UE to accurately report the maximum transmission power change caused by SAR limitations based on the actual operating conditions and mode.

[0112] Based on the same inventive concept, another communication method is also provided in the embodiments of this disclosure, as described in the following embodiments, which is executed by the terminal device mentioned in the above communication method 200.

[0113] Figure 8 This is a flowchart of another communication method disclosed herein.

[0114] refer to Figure 8 The communication method 800 is executed by a terminal device, which communicates with a network device. The network device is used to execute the communication method 200 corresponding to any of the above embodiments. The communication method 800 includes:

[0115] Step S81: In response to the first instruction containing the first information, the first reporting parameter is set to the first value. The first information is used to set the terminal device to report the maximum power back-off management event based on power management when it is working in the FR1 frequency band.

[0116] Step S82: When it is determined that the current operation is in the FR1 frequency band and the first preset condition is met, execute maximum power back-off management based on power management;

[0117] Step S83: Send third information to the network device to report the maximum power back-off management event based on power management.

[0118] In an exemplary embodiment, the first preset condition includes a first reporting parameter being a first value, a second reporting parameter being a second value, and the current transmission power being greater than the standard power; wherein, the first reporting parameter is used to set whether the terminal device reports a maximum power back-off management event based on power management when operating in the FR1 frequency band, and the first value of the first reporting parameter is used to indicate that the terminal device reports a maximum power back-off management event based on power management when operating in the FR1 frequency band; the second reporting parameter is used to set whether to report a power level change event when operating in the FR1 frequency band, and the second value of the second reporting parameter is used to indicate that the power level change event is not reported when operating in the FR1 frequency band.

[0119] In an exemplary embodiment, the first instruction further includes second information, which is used to instruct the terminal device to report a subframe of a maximum power backoff management event based on power management, and to trigger a power threshold value for reporting the maximum power backoff management event based on power management. The first preset condition also includes that the current power exceeds the power threshold value. Sending third information to the network device includes sending the third information in the subframe. The third information is located in the first two digits of the second line of the power margin report MAC control element information. The third information includes the specific value of the maximum power backoff measured after the maximum power backoff management event based on power management.

[0120] Figure 9 This is a flowchart of the communication method 800 in an embodiment of this disclosure.

[0121] refer to Figure 9 In an exemplary embodiment, before responding to the first instruction, method 800 further includes:

[0122] Step S80: Send a capability reporting message including fourth information to the network device to report the terminal device's ability to report maximum power back-off management events based on power management when operating in the FR1 band.

[0123] In an exemplary embodiment, the fourth information includes a preset capability parameter that is a first value.

[0124] Figure 10 This is a flowchart of the communication method 800 in an embodiment of this disclosure.

[0125] refer to Figure 10 In an exemplary embodiment, method 800 further includes:

[0126] Step S84: In response to the first instruction containing the fifth information, the second reporting parameter is set to the first value. The fifth information is used to set the terminal device to report power level change events when it is working in the FR1 band.

[0127] Step S85: When it is determined that the current operation is in the FR1 frequency band and the second preset condition is met, the power level is changed.

[0128] Step S86: Send the sixth message to the network device to report the power level change event.

[0129] In an exemplary embodiment, the second preset condition includes: the first reporting parameter is a second value, the second reporting parameter is a first value, and the current transmission power is greater than the standard power; wherein, the first reporting parameter is used to set whether to report the maximum power back-off management event based on power management when operating in the FR1 frequency band, and the second value of the first reporting parameter is used to indicate that the maximum power back-off management event based on power management is not reported when operating in the FR1 frequency band; the second reporting parameter is used to set whether to report the power level change event when operating in the FR1 frequency band, and the second value of the second reporting parameter is used to indicate that the power level change event is not reported when operating in the FR1 frequency band.

[0130] Method 800 can be derived from Figure 4 , Figure 5 , Figure 7 The UE execution shown is already implemented; the specific functions of the UE are already described. Figure 4 , Figure 5 , Figure 7 The corresponding embodiments are described in detail and will not be repeated here.

[0131] Based on the same inventive concept, this disclosure also provides a network device, as described in the following embodiments. Since the principle by which this network device embodiment solves the problem is similar to that of the above-described method embodiments, the implementation of this network device embodiment can refer to the implementation of the above-described method embodiments, and repeated details will not be repeated.

[0132] Figure 11 A structural block diagram of a network device according to an embodiment of this disclosure is shown. Figure 11 As shown, network device 110 includes a transceiver unit 111. The transceiver unit 111 is configured to send a first instruction containing first information to a terminal device, to set the terminal device to report a maximum power back-off management event based on power management when operating in the FR1 frequency band. The transceiver unit 111 is also configured to receive third information reported by the terminal device, the third information being used to record the occurrence of the maximum power back-off management event based on power management when the terminal device is operating in the FR1 frequency band.

[0133] Based on the same inventive concept, this disclosure also provides a terminal device, as described in the following embodiments. Since the principle by which this terminal device solves the problem is similar to that of the method embodiments described above, the implementation of this terminal device embodiment can refer to the implementation of the method embodiments described above, and repeated details will not be repeated.

[0134] Figure 12 This diagram illustrates a structural block diagram of a terminal device according to an embodiment of the present disclosure. Figure 12As shown, the terminal device 120 includes a transceiver unit 121. The transceiver unit 121 is configured to respond to a first instruction containing first information, setting a first reporting parameter to a first value, wherein the first information is used to set the terminal device to report a maximum power back-off management event based on power management when operating in the FR1 frequency band; when determining that it is currently operating in the FR1 frequency band and meets a first preset condition, performing maximum power back-off management based on power management; and sending third information to the network device to report the maximum power back-off management event based on power management. The transceiver unit 121 is also configured to, before responding to the first instruction, send a capability reporting message including fourth information to the network device to report the terminal device's capability to report the maximum power back-off management event based on power management when operating in the FR1 frequency band.

[0135] It should be noted that the above-mentioned modules / units, as part of a device, can be executed in a computer system such as a set of computer-executable instructions.

[0136] Those skilled in the art will understand that various aspects of the present invention can be implemented as systems, methods, or program products. Therefore, various aspects of the present invention can be specifically implemented in the following forms: entirely hardware implementations, entirely software implementations (including firmware, microcode, etc.), or implementations combining hardware and software aspects, collectively referred to herein as “circuits,” “modules,” or “systems.”

[0137] In an exemplary embodiment of this disclosure, a communication device capable of implementing the above-described method is also provided.

[0138] The following reference Figure 13 To describe a communication device 1300 according to this embodiment of the present invention. Figure 13 The communication device 1300 shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of the present invention.

[0139] like Figure 13 As shown, the communication device 1300 is presented in the form of a general-purpose computing device. The components of the communication device 1300 may include, but are not limited to: at least one processing unit 1310, at least one storage unit 1320, and a bus 1330 connecting different system components (including storage unit 1320 and processing unit 1310).

[0140] The storage unit stores program code that can be executed by the processing unit 1310, causing the processing unit 1310 to perform the steps described in the "Exemplary Methods" section of this specification according to various exemplary embodiments of the present invention. For example, the processing unit 1310 can perform the method shown in the embodiments of this disclosure.

[0141] In some embodiments, when the communication device 1300 is a terminal device, the processing unit 1010 may execute the following steps of the above method embodiment: responding to a first instruction containing first information, setting a first reporting parameter to a first value, wherein the first information is used to set the terminal device to report a maximum power back-off management event based on power management when operating in the FR1 frequency band; when it is determined that the terminal device is currently operating in the FR1 frequency band and meets a first preset condition, performing maximum power back-off management based on power management; and sending third information to the network device to report the maximum power back-off management event based on power management.

[0142] In some embodiments, when the communication device 1300 is a network device, the processing unit 1010 may execute the following steps of the above method embodiment: send a first instruction containing first information to the terminal device to set the terminal device to report a maximum power back-off management event based on power management when it is working in the FR1 frequency band.

[0143] Storage unit 1320 may include readable media in the form of volatile storage units, such as random access memory (RAM) 13201 and / or cache memory 13202, and may further include read-only memory (ROM) 13203.

[0144] Storage unit 1320 may also include a program / utility 13204 having a set (at least one) of program modules 13205, such program modules 13205 including but not limited to: operating system, one or more application programs, other program modules and program data, each or some combination of these examples may include an implementation of a network environment.

[0145] Bus 1330 can represent one or more of several types of bus structures, including a memory cell bus or memory cell controller, a peripheral bus, a graphics acceleration port, a processing unit, or a local bus using any of the various bus structures.

[0146] The communication device 1300 can also communicate with one or more external devices 1400 (e.g., keyboard, pointing device, Bluetooth device, etc.), one or more devices that enable a user to interact with the communication device 1300, and / or any device that enables the communication device 1300 to communicate with one or more other computing devices (e.g., router, modem, etc.). This communication can be performed via the input / output (I / O) interface 1350. Furthermore, the communication device 1300 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via the network adapter 1360. As shown, the network adapter 1360 communicates with other modules of the communication device 1300 via bus 1330. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with the communication device 1300, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0147] From the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, terminal device, or network device, etc.) to execute the methods according to the embodiments of this disclosure.

[0148] In exemplary embodiments of this disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the methods described above is stored. In some possible embodiments, various aspects of the invention may also be implemented as a program product comprising program code that, when the program product is run on a terminal device, causes the terminal device to perform the steps of the various exemplary embodiments of the invention described in the "Exemplary Methods" section of this specification.

[0149] The program product for implementing the above-described method according to embodiments of the present invention may employ a portable compact disc read-only memory (CD-ROM) and include program code, and may run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto. In this document, the readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0150] The program product may employ any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0151] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium, capable of sending, propagating, or transmitting programs for use by or in conjunction with an instruction execution system, apparatus, or device.

[0152] The program code contained on the readable medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof.

[0153] Program code for performing the operations of this invention can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java and C++, and conventional procedural programming languages ​​such as C or similar languages. The program code can execute entirely on the user's computing device, partially on the user's device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0154] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to embodiments of this disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0155] Furthermore, the above figures are merely illustrative of the processes included in the method according to exemplary embodiments of the present invention, and are not intended to be limiting. It is readily understood that the processes shown in the above figures do not indicate or limit the temporal order of these processes. Additionally, it is readily understood that these processes may be executed synchronously or asynchronously, for example, in multiple modules.

[0156] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and concept of this disclosure are indicated by the claims.

Claims

1. A communication method, characterized in that, Performed by network devices, including: Send a first instruction containing first information to the terminal device to set the terminal device to report a maximum power back-off management event based on power management when it is operating in the FR1 frequency band.

2. The communication method as described in claim 1, characterized in that, The first instruction includes a power margin report configuration instruction for the radio resource control information element.

3. The communication method as described in claim 1, characterized in that, The first information is used to set the first reporting parameter to a first value in the terminal device, so that when the terminal device is operating in the FR1 frequency band, the first reporting parameter is the first value, and the second reporting parameter is the second value, the third information is used to report that a maximum power back-off management event based on power management has occurred when the terminal device is operating in the FR1 frequency band. The first reporting parameter is used to set whether the terminal device reports a maximum power back-off management event based on power management when operating in the FR1 frequency band. The first value of the first reporting parameter is used to indicate that the terminal device reports the maximum power back-off management event based on power management when operating in the FR1 frequency band. The second reporting parameter is used to set whether the terminal device reports a power level change event when operating in the FR1 frequency band. The second value of the second reporting parameter is used to indicate that the terminal device does not report the power level change event when operating in the FR1 frequency band.

4. The communication method as described in claim 1, characterized in that, Also includes: The third information reported by the terminal device is received, which is used to record the maximum power back-off management event based on power management that occurred when the terminal device was operating in the FR1 frequency band.

5. The communication method as described in claim 3 or 4, characterized in that, The third information is located in the first two digits of the second line of the power margin report MAC control element information sent by the terminal device. The third information includes the specific value of the maximum power backoff measured by the terminal device after the maximum power backoff management event based on power management.

6. The communication method as described in claim 1, characterized in that, Sending the first instruction to the terminal device includes: Upon receiving a capability reporting message including fourth information from the terminal device, the first instruction is sent to the terminal device, wherein the fourth information is used to indicate that the terminal device supports the capability to report the maximum power back-off management event based on power management when operating in the FR1 frequency band.

7. The communication method as described in claim 1, characterized in that, The fourth piece of information includes a preset capability parameter with a first value.

8. The communication method as described in claim 1 or 2, characterized in that, The first instruction further includes second information, which is used to instruct the terminal device to report the subframe of the power management-based maximum power back-off management event, and to trigger the power threshold value for reporting the power management-based maximum power back-off management event.

9. The communication method as described in claim 1 or 2, characterized in that, Also includes: A first instruction containing fifth information is sent to the terminal device to set the terminal device to report power level change events when operating in the FR1 band. The fifth information is used to set a second reporting parameter to a first value in the terminal device, so that when the terminal device is operating in the FR1 band, the first reporting parameter is a second value, and the second reporting parameter is a first value, the terminal device sends a sixth information to the network device. The sixth information is used to report a power level change event that occurred when the terminal device is operating in the FR1 band. The first reporting parameter is used to set whether the terminal device reports a maximum power backoff management event based on power management when operating in the FR1 band. The second value of the first reporting parameter is used to indicate that the terminal device does not report the maximum power backoff management event based on power management when operating in the FR1 band. The second reporting parameter is used to set whether the terminal device reports a power level change event when it is operating in the FR1 frequency band. The first value of the second reporting parameter is used to indicate that the terminal device reports the power level change event when it is operating in the FR1 frequency band.

10. A communication method, characterized in that, Executed by a terminal device, the terminal device communicating with a network device, the network device being used to execute the communication method as described in any one of claims 1-9, the communication method comprising: In response to a first instruction containing first information, the first reporting parameter is set to a first value, wherein the first information is used to set the terminal device to report a maximum power back-off management event based on power management when it is operating in the FR1 frequency band; When it is determined that the current operation is in the FR1 frequency band and the first preset condition is met, maximum power back-off management based on power management is executed. The third message is sent to the network device to report the maximum power back-off management event based on power management.

11. The communication method as described in claim 10, characterized in that, The first preset condition includes the first reporting parameter being a first value, the second reporting parameter being a second value, and the current transmission power being greater than the standard power; wherein, the first reporting parameter is used to set whether the terminal device reports a maximum power back-off management event based on power management when operating in the FR1 frequency band, and the first value of the first reporting parameter is used to indicate that the terminal device reports the maximum power back-off management event based on power management when operating in the FR1 frequency band; the second reporting parameter is used to set whether to report a power level change event when operating in the FR1 frequency band, and the second value of the second reporting parameter is used to indicate that the power level change event is not reported when operating in the FR1 frequency band.

12. The communication method as described in claim 11, characterized in that, The first instruction further includes second information, which is used to instruct the terminal device to report the subframe of the power management-based maximum power backoff management event, and to trigger the reporting of the power management-based maximum power backoff management event. The first preset condition also includes that the current power exceeds the power threshold value. Sending third information to the network device includes sending the third information in the subframe. The third information is located in the first two digits of the second line of the power margin report MAC control element information. The third information includes the specific value of the maximum power backoff measured after the power management-based maximum power backoff management event.

13. The communication method as described in claim 10, characterized in that, Before responding to the first instruction, it also includes: The network device sends a capability reporting message including fourth information to report the terminal device's ability to report the maximum power back-off management event based on power management when operating in the FR1 band.

14. The communication method as described in claim 13, characterized in that, The fourth piece of information includes a preset capability parameter with a first value.

15. The communication method as described in claim 10, characterized in that, Also includes: In response to a first instruction containing fifth information, the second reporting parameter is set to a first value, wherein the fifth information is used to set the terminal device to report power level change events when it is operating in the FR1 band; When it is determined that the current operation is in the FR1 frequency band and the second preset condition is met, the power level is changed. The network device sends a sixth message to report the power level change event.

16. The communication method as described in claim 15, characterized in that, The second preset condition includes: the first reporting parameter is a second value, the second reporting parameter is a first value, and the current transmission power is greater than the standard power; wherein, the first reporting parameter is used to set whether to report the maximum power back-off management event based on power management when operating in the FR1 frequency band, and the second value of the first reporting parameter is used to indicate that the maximum power back-off management event based on power management is not reported when operating in the FR1 frequency band; the second reporting parameter is used to set whether to report the power level change event when operating in the FR1 frequency band, and the second value of the second reporting parameter is used to indicate that the power level change event is not reported when operating in the FR1 frequency band.

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