Power determination method and apparatus

Abstract

The embodiment of the present application discloses a power determination method and device, which determines the out-of-band emission limit information of the terminal device, determines the power of the terminal device according to the out-of-band emission limit information, so that the terminal device can determine different powers according to different limits of the out-of-band emission, determine different power backoff values according to different situations, reduce unnecessary power backoff in some special situations, increase the uplink coverage of the terminal, and effectively improve the efficiency of communication and the quality of the communication link.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a power determination method and apparatus. Background Technology

[0002] In related technologies, terminals are allowed a certain amount of power back-off, or MPR (maximum power reduction), to meet in-band and out-of-band radiation requirements. A larger power back-off results in a smaller allowable power for the terminal, thus impacting uplink coverage. In some cases, the terminal's out-of-band radiation does not need to adhere to the strict limitations of general out-of-band radiation. In such cases, excessive power back-off is detrimental to uplink coverage and reduces communication efficiency. Summary of the Invention

[0003] A first aspect of this application provides a power determination method, which is executed by a terminal device. The method includes: determining out-of-band emission limit information of the terminal device; and determining the power of the terminal device based on the out-of-band emission limit information.

[0004] Optionally, determining the out-of-band transmission restriction information of the terminal device includes: receiving indication information sent by the network device; and determining the out-of-band transmission restriction information of the terminal device based on the indication information.

[0005] Optionally, determining the out-of-band emission restriction information of the terminal device includes: determining the location information of the terminal device; and determining the out-of-band emission restriction information of the terminal device based on the location information.

[0006] Optionally, the out-of-band emission limiting information includes at least one of: adjacent channel leakage ratio (ACLR), out-of-band radiation, and out-of-band stray radiation.

[0007] Optionally, determining the power of the terminal device based on the out-of-band transmit limitation information includes: determining a power backoff value based on the out-of-band transmit limitation information, the time-frequency resource location of the terminal device, the number of resource blocks, and the modulation scheme of the terminal device; and determining the power of the terminal device based on the power backoff value.

[0008] Optionally, determining the power of the terminal device based on the out-of-band transmit limitation information includes: determining a power offset value based on the out-of-band transmit limitation information; determining a reference power backoff value based on the time-frequency resource location, resource block number, and modulation scheme of the terminal device; and determining the power backoff value based on the reference power backoff value and the power offset value.

[0009] Optionally, the method further includes: sending the power of the terminal device to the network device.

[0010] Optionally, the indication information is at least 1 bit, and the indication information is used to indicate whether the terminal device can relax the restrictions on out-of-band transmission.

[0011] Optionally, the indication information consists of multiple bits, which are used to indicate the degree to which the terminal device relaxes restrictions on out-of-band transmission.

[0012] A second aspect of this application provides a power determination method, which is executed by a network device. The method includes: sending indication information to a terminal device; the indication information being used to determine out-of-band transmission limit information of the terminal device, so as to determine the power of the terminal device based on the out-of-band transmission limit information.

[0013] Optionally, the out-of-band emission limiting information includes at least one of: adjacent channel leakage ratio (ACLR), out-of-band radiation, and out-of-band stray radiation.

[0014] Optionally, the indication information is at least 1 bit, and the indication information is used to indicate whether the terminal device can relax the restrictions on out-of-band transmission.

[0015] Optionally, the indication information consists of multiple bits, which are used to indicate the degree to which the terminal device relaxes restrictions on out-of-band transmission.

[0016] Optionally, the method further includes: receiving the power of the terminal device sent by the terminal device.

[0017] A third aspect of this application provides a power determination device, which is applied to a terminal device, and the device includes:

[0018] The processing unit is used to determine the out-of-band transmission restriction information of the terminal device;

[0019] The processing unit is further configured to determine the power of the terminal device based on the out-of-band emission limitation information.

[0020] Optionally, the processing unit is specifically configured to: receive indication information sent by the network device; and determine out-of-band transmission restriction information of the terminal device based on the indication information.

[0021] Optionally, the processing unit is specifically used to: determine the location information of the terminal device; and determine the out-of-band emission restriction information of the terminal device based on the location information.

[0022] Optionally, the out-of-band emission limiting information includes at least one of: adjacent channel leakage ratio (ACLR), out-of-band radiation, and out-of-band stray radiation.

[0023] Optionally, the processing unit is specifically configured to: determine a power backoff value based on the out-of-band transmit limit information, the time-frequency resource location of the terminal device, the number of resource blocks, and the modulation scheme of the terminal device; and determine the power of the terminal device based on the power backoff value.

[0024] Optionally, the processing unit is specifically configured to: determine a power offset value based on the out-of-band transmit limitation information; determine a reference power backoff value based on the time-frequency resource location, resource block number, and modulation scheme of the terminal device; and determine the power backoff value based on the reference power backoff value and the power offset value.

[0025] Optionally, the apparatus further includes a transceiver unit for transmitting the power of the terminal device to the network device.

[0026] Optionally, the indication information is at least 1 bit, and the indication information is used to indicate whether the terminal device can relax the restrictions on out-of-band transmission.

[0027] Optionally, the indication information consists of multiple bits, which are used to indicate the degree to which the terminal device relaxes restrictions on out-of-band transmission.

[0028] A fourth aspect of this application provides a power determination apparatus, which is applied to a network device, and the apparatus includes:

[0029] The transceiver unit is used to send instruction information to the terminal device;

[0030] The indication information is used to determine the out-of-band emission limit information of the terminal device, so as to determine the power of the terminal device based on the out-of-band emission limit information.

[0031] Optionally, the out-of-band emission limiting information includes at least one of: adjacent channel leakage ratio (ACLR), out-of-band radiation, and out-of-band stray radiation.

[0032] Optionally, the indication information is at least 1 bit, and the indication information is used to indicate whether the terminal device can relax the restrictions on out-of-band transmission.

[0033] Optionally, the indication information consists of multiple bits, which are used to indicate the degree to which the terminal device relaxes restrictions on out-of-band transmission.

[0034] Optionally, the transceiver unit is further configured to: receive the power of the terminal device transmitted by the terminal device.

[0035] A fifth aspect of this application provides a communication device comprising a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to cause the device to perform the power determination method described in the first aspect of the application.

[0036] A sixth aspect of this application provides a communication device including a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to cause the device to perform the power determination method described in the second aspect of the application.

[0037] A seventh aspect of this application provides a communication device including a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor, which is used to execute the code instructions to cause the device to perform the power determination method described in the first aspect of the application.

[0038] An eighth aspect of this application provides a communication device including a processor and an interface circuit. The interface circuit is used to receive code instructions and transmit them to the processor, which is used to execute the code instructions to cause the device to perform the power determination method described in the second aspect of the application.

[0039] A ninth aspect of this application provides a computer-readable storage medium for storing instructions that, when executed, enable the power determination method described in the first aspect of this application to be implemented.

[0040] A tenth aspect of this application provides a computer-readable storage medium for storing instructions that, when executed, enable the power determination method described in the second aspect of the application.

[0041] The eleventh aspect of this application provides a computer program that, when run on a computer, causes the computer to perform the power determination and allocation method described in the first aspect embodiment.

[0042] The twelfth aspect of this application provides a computer program that, when run on a computer, causes the computer to perform the power determination method described in the second aspect embodiment.

[0043] This application provides a power determination method and apparatus that determines the power of a terminal device by determining out-of-band transmission limit information. This enables the terminal device to determine different power levels based on different out-of-band transmission limits and to determine different power back-off values ​​based on different situations. In some special cases, this can reduce unnecessary power back-off, increase uplink coverage of the terminal, and effectively improve communication efficiency and communication link quality.

[0044] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0046] Figure 1 This application provides a schematic diagram of the architecture of a communication system.

[0047] Figure 2 This is a flowchart illustrating a power determination method provided in an embodiment of this application;

[0048] Figure 3 This is a flowchart illustrating a power determination method provided in an embodiment of this application;

[0049] Figure 4 This is a flowchart illustrating a power determination method provided in an embodiment of this application;

[0050] Figure 5 This is a flowchart illustrating a power determination method provided in an embodiment of this application;

[0051] Figure 6 This is a flowchart illustrating a power determination method provided in an embodiment of this application;

[0052] Figure 7 This is a flowchart illustrating a power determination method provided in an embodiment of this application;

[0053] Figure 8 This is a flowchart illustrating a power determination method provided in an embodiment of this application;

[0054] Figure 9 This is a schematic diagram of the structure of a power determination device provided in an embodiment of this application;

[0055] Figure 10 This is a schematic diagram of the structure of a power determination device provided in an embodiment of this application;

[0056] Figure 11 This is a schematic diagram of another power determination device provided in an embodiment of this application;

[0057] Figure 12 This is a schematic diagram of the structure of a chip provided in an embodiment of this disclosure. Detailed Implementation

[0058] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this application as detailed in the appended claims.

[0059] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a” and “the” as used in the embodiments of this application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0060] It should be understood that although the terms first, second, third, etc., may be used to describe various information in the embodiments of this application, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the words "if" and "suppose" as used herein can be interpreted as "when," "when," or "in response to a determination."

[0061] Embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0062] To better understand the power determination method disclosed in the embodiments of this application, the communication system to which the embodiments of this application are applicable is described below.

[0063] Please see Figure 1 , Figure 1 This application provides a schematic diagram of the architecture of a communication system. The communication system may include, but is not limited to, a first network device, a second network device, and a terminal device. Figure 1The number and form of devices shown are for illustrative purposes only and do not constitute a limitation on the embodiments of this application. In actual applications, it may include two or more network devices and two or more terminal devices. Figure 1 The communication system shown is exemplified by a network device 101 and a terminal device 102.

[0064] It should be noted that the technical solutions of this application embodiment can be applied to various communication systems. For example, Long Term Evolution (LTE) systems, fifth-generation mobile communication systems, 5G New Radio systems, or other future new mobile communication systems.

[0065] The network device 101 in this embodiment is a network-side entity used for transmitting or receiving signals. For example, the network device 101 can be an evolved NodeB (eNB), a Transmission Reception Point (TRP), a Next Generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a Wireless Fidelity (WiFi) system. This embodiment does not limit the specific technology or device form used in the network device. The network device provided in this embodiment can be composed of a Central Unit (CU) and a Distributed Unit (DU). The CU can also be called a Control Unit. Using a CU-DU structure allows the protocol layer of a network device, such as a base station, to be separated. Some protocol layer functions are centrally controlled by the CU, while the remaining or all protocol layer functions are distributed in the DU, which is centrally controlled by the CU.

[0066] In this application embodiment, the terminal device 102 is a user-side entity used to receive or transmit signals, such as a mobile phone. The terminal device can also be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal device can be a car with communication capabilities, a smart car, a mobile phone, a wearable device, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, and so on. The embodiments of this application do not limit the specific technology or device form used in the terminal device.

[0067] In LTE or 5G NR systems, terminal device 102 is allowed a certain amount of power back-off, or MPR (maximum power reduction), to meet in-band and out-of-band radiation requirements. MPR defines the allowable reduction in maximum power level for a specific combination of modulation schemes and allocated resource blocks. The magnitude of the power back-off affects the maximum power configuration allowed by terminal device 102. A larger power back-off results in a smaller allowable power for terminal device 102, thus impacting its uplink coverage.

[0068] The power back-off of terminal device 102 mainly depends on in-band and out-of-band radiation requirements, with out-of-band radiation requirements primarily depending on regulatory requirements. However, in some special cases, such as in remote areas like the high seas, deserts, and mountains, the power back-off required by regulations may lead to a reduction in the coverage of terminal device 102, thereby affecting the communication quality of terminal device 102.

[0069] Therefore, in certain special circumstances, such as in remote places like the high seas, deserts, and mountains, the out-of-band radiation limitation of the terminal device 102 does not need to comply with the general out-of-band radiation requirements. The limitation on its out-of-band radiation can be relaxed, thereby reducing unnecessary power back-off under certain conditions. This can help increase the uplink coverage of the terminal device 102 and improve communication efficiency and quality.

[0070] In the embodiments of this application, by determining the out-of-band transmission limit information of the terminal device, the power of the terminal device is determined based on the out-of-band transmission limit information, so that the terminal device can determine different power according to different out-of-band transmission limits, and determine different power back-off values ​​according to different situations. In some special cases, unnecessary power back-off can be reduced, the uplink coverage of the terminal can be increased, and the communication efficiency and communication link quality can be effectively improved.

[0071] It is understood that the communication system described in the embodiments of this application is for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and does not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0072] The power determination method and apparatus provided in this application will be described in detail below with reference to the accompanying drawings.

[0073] Please see Figure 2 , Figure 2 This is a schematic flowchart illustrating a power determination method provided in an embodiment of this application. It should be noted that the power determination method in this embodiment is executed by a terminal device. Figure 2 As shown, the method may include the following steps:

[0074] Step 201: Determine the out-of-band transmission restriction information of the terminal device.

[0075] Among them, out-of-band emission restriction information refers to information that restricts the out-of-band emission of terminal devices, that is, the requirements for the out-of-band emission of terminal devices.

[0076] When terminal equipment transmits signals, its internal components operate under non-ideal conditions and exhibit varying degrees of nonlinearity. During signal modulation and transmission, signals outside the specified frequency range may be generated, exceeding one or more frequencies beyond the necessary bandwidth. Consequently, out-of-band transmissions from a single terminal device within a communication system can interfere with the communication of other devices. Therefore, there are generally restrictions and requirements on out-of-band transmissions from terminal devices.

[0077] In some implementations, out-of-band emission limiting information includes at least one of the following: Adjacent Channel Leakage Ratio (ACLR), out-of-band emission, and spurious emission.

[0078] The Adjacent Channel Leakage Ratio (ACLR) is the ratio of the average filtering power centered on a specified channel frequency to the average filtering power centered on adjacent channel frequencies.

[0079] Optionally, out-of-band emission restriction information is determined based on the geographical characteristics of the deployment location of the serving cell where the terminal device is located or relevant regulatory requirements.

[0080] It is understandable that the out-of-band emission limit information can be at least one of the following: the lower limit of the adjacent channel leakage ratio ACLR, the upper limit of out-of-band radiation, and the upper limit of out-of-band spurious radiation. In other words, it means that the adjacent channel leakage ratio ACLR is limited, and at least one of out-of-band radiation and out-of-band spurious radiation cannot exceed this limit.

[0081] In some implementations, the terminal device receives an instruction message sent by the network device and determines out-of-band transmission restriction information of the terminal device based on the instruction message.

[0082] In other words, network devices send instruction information to terminal devices based on the geographical characteristics of their deployment location or relevant regulatory requirements, instructing the terminal devices on out-of-band transmission restrictions.

[0083] Optionally, the indication information is at least 1 bit.

[0084] In some implementations, the terminal device determines its own location information and, based on that location information, determines the terminal device's out-of-band emission limitation information.

[0085] Step 202: Determine the power of the terminal device based on the out-of-band emission limitation information.

[0086] After determining the out-of-band emission limit information, the terminal device will determine its own power based on the out-of-band emission limit information.

[0087] Optionally, the terminal device determines the power back-off value of the terminal device based on the out-of-band transmission restriction information, and then determines the power of the terminal device based on the power back-off value.

[0088] In some implementations, the terminal device determines the power back-off value based on out-of-band transmit limit information, the time-frequency resource location of the terminal device, the number of resource blocks, and the modulation scheme of the terminal device.

[0089] In some implementations, the terminal device determines the power offset value based on out-of-band transmit limit information, determines the reference power backoff value based on the time-frequency resource location, resource block number, and modulation method of the terminal device, and then determines the power backoff value based on the reference power backoff value and the power offset value.

[0090] Among them, the time-frequency resource location of the terminal device refers to the position of the time-frequency resources allocated to the terminal device in the transmission bandwidth configuration. It is generally divided into inner time-frequency resource allocation, outer time-frequency resource allocation and edge time-frequency resource allocation. The inner time-frequency resource allocation can be further divided into region 1 and region 2.

[0091] It is understandable that the definition of time-frequency resource location can be different in different application scenarios. That is, the definition of which time-frequency resource allocation belongs to internal time-frequency resource allocation, which time-frequency resource allocation belongs to external time-frequency resource allocation, and which time-frequency resource allocation belongs to edge time-frequency resource allocation can be different.

[0092] Optionally, the time-frequency resource in this application embodiment is a resource block (RB).

[0093] In this embodiment of the application, after determining its own power, the terminal device can also send the determined power to the network device so that the network device can configure the power to the terminal device according to the power.

[0094] In summary, by determining the out-of-band transmission limit information of the terminal device, and based on this out-of-band transmission limit information, the power of the terminal device can be determined. This allows the terminal device to determine different power levels based on different out-of-band transmission limits, and to determine different power back-off values ​​based on different situations. In some special cases, this can reduce unnecessary power back-off, increase the uplink coverage of the terminal, and effectively improve communication efficiency and the quality of the communication link.

[0095] Please see Figure 3 , Figure 3 This is a schematic flowchart illustrating a power determination method provided in an embodiment of this application. It should be noted that the power determination method in this embodiment is executed by a terminal device. Figure 3 As shown, the method may include the following steps:

[0096] Step 301: Receive instruction information sent by the network device.

[0097] This indication information is sent from the network device to the terminal device to determine the out-of-band transmission restriction information of the terminal device.

[0098] Based on the geographical characteristics of its deployment location or relevant regulatory requirements, network devices determine the out-of-band emission restriction information of terminal devices, and use this indication information to instruct terminal devices to determine the out-of-band emission restriction information.

[0099] Optionally, the out-of-band emission limiting information includes at least one of the following: adjacent channel leakage ratio (ACLR), out-of-band radiation, and out-of-band stray radiation.

[0100] In some implementations, the network device sends a 1-bit indication message that indicates whether the terminal device can relax restrictions on out-of-band transmission.

[0101] Optionally, the indicator information can be set to 0 to indicate that relaxation is allowed, and 1 to indicate that relaxation is not allowed, or the indicator information can be set to 1 to indicate that relaxation is allowed, and 0 to indicate that relaxation is not allowed.

[0102] It is understandable that after receiving an instruction that the restrictions on out-of-band transmission can be relaxed, the terminal device can directly determine the default value of the degree of relaxation of the restrictions on out-of-band transmission. Different default values ​​of relaxation can be set according to different environmental requirements, etc.

[0103] In some implementations, the indication information sent by the network device consists of multiple bits, which can indicate the degree of relaxation of the restrictions on out-of-band transmission by the terminal device.

[0104] For example, the indication information is 2 bits, and the indication information 00, 01, 10, 11 correspond to different levels of relaxation.

[0105] Optionally, the degree of relaxation is related to the amount of change between the out-of-band emission limit information and the standard reference value, or the amount of change is related to a set proportion of the standard reference value.

[0106] It is understandable that the instruction information and the corresponding level of relaxation can be set differently depending on environmental needs and other factors.

[0107] In some implementations, the indication information sent by the network device consists of multiple bits, which can indicate the specific value of the out-of-band emission limit information of the terminal device. For example, some bits in the indication information represent the adjacent channel leakage ratio (ACLR) value, and some bits represent the spurious radiation value, etc.

[0108] Step 302: Determine the out-of-band transmission restriction information of the terminal device based on the instruction information.

[0109] In some implementations, the network device sends a 1-bit indication message that indicates whether the terminal device can relax restrictions on out-of-band transmission.

[0110] Optionally, determining the out-of-band transmission restriction information of the terminal device according to the instruction information includes: there is a standard reference value for the out-of-band transmission restriction of the terminal device; after receiving the instruction information sent by the network device indicating that the restriction on out-of-band transmission can be relaxed, the terminal device determines that the change between the out-of-band transmission restriction information and the standard reference value is a set ratio of the standard reference value, or determines the change between the out-of-band transmission restriction information and the standard reference value.

[0111] The standard reference value refers to the out-of-band emission restriction information of the terminal device before it determines that it can relax the restrictions on out-of-band emissions. In other words, it is the out-of-band emission restriction information when the terminal does not relax the restrictions on out-of-band emissions. The terminal device can determine this standard reference value. It can be understood that the standard reference value can be dynamically set and adjusted according to factors such as the capabilities of the terminal device, the environment, and the requirements of relevant regulations.

[0112] It is understandable that the indication information can be 0 when the restriction on out-of-band emissions can be relaxed, and 1 when the restriction information cannot be relaxed, or vice versa. After receiving the indication information that the restriction on out-of-band emissions can be relaxed, the determined setting ratio or the value of the change amount is related to the degree of relaxation and can be set differently according to different environmental requirements, etc. For example, the setting ratio may be 10% in some scenarios and 20% in others. This ratio represents the change range relative to the standard reference value. For example, the out-of-band emission restriction information increases by this ratio relative to the standard reference value, or the change amount may be m in some scenarios and n in others.

[0113] It is understandable that relaxing the ACLR limit for adjacent channel leakage means reducing the lower limit of the ACLR, relaxing the out-of-band radiation limit means increasing the upper limit of the out-of-band radiation, and relaxing the out-of-band stray radiation limit means increasing the upper limit of the out-of-band stray radiation.

[0114] In some implementations, the indication information sent by the network device consists of multiple bits, which can indicate the degree of relaxation of the restrictions on out-of-band transmission by the terminal device.

[0115] Optionally, determining the out-of-band transmission restriction information of the terminal device according to the indication information includes: there is a standard reference value for the out-of-band transmission restriction of the terminal device; after receiving the indication information sent by the network device indicating that the restriction on out-of-band transmission can be relaxed, the terminal device determines that the change between the out-of-band transmission restriction information and the standard reference value is the proportion corresponding to the indication information of the standard reference value, or determines that the change between the out-of-band transmission restriction information and the standard reference value is the numerical value corresponding to the indication information.

[0116] The standard reference value refers to the out-of-band emission restriction information of the terminal device before it determines that it can relax the restrictions on out-of-band emissions. In other words, it is the out-of-band emission restriction information when the terminal does not relax the restrictions on out-of-band emissions. The terminal device can determine this standard reference value. It can be understood that the standard reference value can be dynamically set and adjusted according to factors such as the capabilities of the terminal device, the environment, and the requirements of relevant regulations.

[0117] For example, the indication information is 2 bits. The proportion corresponding to indication information 00 is 0%, 01 is 10%, 10 is 20%, and 11 is 30%. That is, after receiving the indication information 00, the terminal device determines that the change between the out-of-band emission limit information and the standard reference value is 0% of the standard reference value, which means that the restriction on out-of-band emission cannot be relaxed. After receiving the indication information 01, it determines that the change between the out-of-band emission limit information and the standard reference value is 10% of the standard reference value. After receiving the indication information 10, it determines that the change between the out-of-band emission limit information and the standard reference value is 20% of the standard reference value. After receiving the indication information 11, it determines that the change between the out-of-band emission limit information and the standard reference value is 30% of the standard reference value.

[0118] Alternatively, the value corresponding to indication information 00 is 0, the value corresponding to 01 is m1, the value corresponding to 10 is m2, and the value corresponding to 11 is m3. That is, after receiving indication information 00, the terminal device determines that the change between the out-of-band emission restriction information and the standard reference value is 0, which means that the restriction on out-of-band emission cannot be relaxed. After receiving indication information 01, it determines that the change between the out-of-band emission restriction information and the standard reference value is m1 (for example, adding m1 to the standard reference value). After receiving indication information 10, it determines that the change between the out-of-band emission restriction information and the standard reference value is m2. After receiving indication information 11, it determines that the change between the out-of-band emission restriction information and the standard reference value is m3.

[0119] It is understandable that relaxing the ACLR limit for adjacent channel leakage means reducing the lower limit of the ACLR, relaxing the out-of-band radiation limit means increasing the upper limit of the out-of-band radiation, and relaxing the out-of-band stray radiation limit means increasing the upper limit of the out-of-band stray radiation.

[0120] It is understandable that the instruction information and the corresponding level of relaxation can be set differently depending on environmental needs and other factors.

[0121] In some implementations, the indication information sent by the network device consists of multiple bits. Based on this indication information, the out-of-band emission limit information of the terminal device is determined. This includes the indication information being able to indicate the specific value of the out-of-band emission limit information of the terminal device. For example, some bits in the indication information represent the adjacent channel leakage ratio (ACLR) value, and some bits represent the spurious radiation value, etc.

[0122] Step 303: Determine the power back-off value based on the out-of-band transmission restriction information, the time-frequency resource location of the terminal device, the number of resource blocks, and the modulation method of the terminal device.

[0123] In some implementations, the terminal device stores at least one set of out-of-band transmit restriction information, the time-frequency resource location of the terminal device, the number of resource blocks, and the correspondence between the modulation scheme and the power back-off value of the terminal device.

[0124] Alternatively, different out-of-band emission restriction information can correspond to different relationships.

[0125] Optionally, the above correspondence can be stored in at least one table, that is, the table includes the correspondence between out-of-band emission limit information, the time-frequency resource location of the terminal device, the number of resource blocks, and the modulation method and power back-off value of the terminal device. Different out-of-band emission limit information can correspond to different tables.

[0126] For example, Table 1 shows the correspondence between the time-frequency resource location, resource block number, modulation method, and power back-off value of the terminal device when the change between the out-of-band emission limit information and the standard reference value is 0% of the standard reference value or the change between the out-of-band emission limit information and the standard reference value is 0%. Table 2 shows the correspondence between the time-frequency resource location, resource block number, modulation method, and power back-off value of the terminal device when the change between the out-of-band emission limit information and the standard reference value is 10% of the standard reference value or the change between the out-of-band emission limit information and the standard reference value is m, and so on.

[0127] Among them, the time-frequency resource location of the terminal device refers to the position of the time-frequency resources allocated to the terminal device in the transmission bandwidth configuration. It is generally divided into inner time-frequency resource allocation, outer time-frequency resource allocation and edge time-frequency resource allocation. The inner time-frequency resource allocation can be further divided into region 1 and region 2.

[0128] It is understandable that the definition of time-frequency resource location can be different in different application scenarios. That is, the definition of which time-frequency resource allocation belongs to internal time-frequency resource allocation, which time-frequency resource allocation belongs to external time-frequency resource allocation, and which time-frequency resource allocation belongs to edge time-frequency resource allocation can be different.

[0129] Optionally, the time-frequency resource in this application embodiment is a resource block (RB).

[0130] After determining the out-of-band emission limit information, the terminal device can find the table corresponding to the out-of-band emission limit information and determine the corresponding power back-off value in the table according to the time and frequency resource location, resource block number and modulation method of the terminal device.

[0131] In some implementations, different power levels of terminal devices may correspond to different tables.

[0132] After determining the out-of-band emission limit information, the terminal device can find a table that corresponds to its own power level and the out-of-band emission limit information, and determine the corresponding power back-off value in the table based on the time and frequency resource location, the number of resource blocks, and the modulation method of the terminal device.

[0133] Step 304: Determine the power of the terminal device based on the power backoff value.

[0134] In some implementations, the terminal device determines its maximum allowable configuration power P based on the power backoff value. CMAX,f,c .

[0135] Optionally, P CMAX_L,f,c ≤P CMAX,f,c ≤P CMAX_H,f,c ,in,

[0136] P CMAX_L,f,c =MIN{P EMAX,c –ΔT C,c ,(P PowerClass –ΔP PowerClass )–MAX(MAX(MPR c +ΔMPR c A-MPR c )+ΔT IB,c +ΔT C,c +ΔT RxSRS P-MPR c )},

[0137] P CMAX_H,f,c =MIN{P EMAX,c ,P PowerClass –ΔP PowerClass}

[0138] Among them, P CMAX,f,c P represents the maximum allowable configuration power of the terminal device. CMAX_L,f,c P represents the lower limit of the maximum allowable configuration power of the terminal device. CMAX_H,f,cThis indicates the upper limit of the maximum allowed configurable power of the terminal device. MIN() represents the minimum value, and MAX() represents the maximum value. EMAX,c P represents the power configured by the network device for the terminal device. PowerClass Indicates the power level of the terminal device, which is related to the capabilities of the terminal device; MPR c This indicates the maximum power back-off, which is the power back-off value determined in step 303, A-MPR. c Indicates additional power back-off, P-MPR c This indicates a power reduction based on human safety requirements for electromagnetic energy absorption.

[0139] Step 305: Send the power of the device to the network device.

[0140] In this embodiment of the application, after determining its own power, the terminal device sends the determined power to the network device so that the network device can configure the power to the terminal device according to the power.

[0141] In summary, by receiving indication information sent by network devices, out-of-band transmission limit information of terminal devices is determined based on this indication information. Then, based on the out-of-band transmission limit information, the time-frequency resource location, resource block number, and modulation scheme of the terminal devices, a power backoff value is determined. Finally, the power of the terminal devices is determined based on this power backoff value. This allows the terminal devices to determine different power levels based on different out-of-band transmission limits and different power backoff values ​​depending on the situation. In some special cases, this reduces unnecessary power backoff, increases uplink coverage of the terminals, and effectively improves communication efficiency and the quality of the communication link.

[0142] Please see Figure 4 , Figure 4 This is a schematic flowchart illustrating a power determination method provided in an embodiment of this application. It should be noted that the power determination method in this embodiment is executed by a terminal device. Figure 4 As shown, the method may include the following steps:

[0143] Step 401: Receive instruction information sent by the network device.

[0144] Step 402: Determine the out-of-band transmission restriction information of the terminal device based on the instruction information.

[0145] In the embodiments of this application, steps 401 and 402 can be implemented in any of the embodiments of this application. The embodiments of this application do not limit this and will not elaborate further.

[0146] Step 403: Determine the power offset value based on the out-of-band emission limitation information.

[0147] The power offset value refers to the offset amount relative to the reference power backoff value.

[0148] In some implementations, different out-of-band emission limit information corresponds to different power offset values.

[0149] For example, when the change between the out-of-band emission limit information and the standard reference value is 0% of the standard reference value or the change between the out-of-band emission limit information and the standard reference value is 0%, the corresponding power offset value is offset1. When the change between the out-of-band emission limit information and the standard reference value is 10% of the standard reference value or the change between the out-of-band emission limit information and the standard reference value is m, the corresponding power offset value is offset2, and so on.

[0150] Understandably, the power offset value corresponding to the out-of-band emission limit information can be set differently depending on environmental requirements and other factors, and the offset value can also be set to 0.

[0151] In some implementations, the terminal device may also determine whether an offset value is needed based on out-of-band emission restriction information. For example, when the change between the out-of-band emission restriction information and the standard reference value is 0% of the standard reference value, or when the change between the out-of-band emission restriction information and the standard reference value is 0%, or when the terminal device receives an instruction from the network device that the restriction on out-of-band emission cannot be relaxed, the terminal device does not need to set an offset value.

[0152] Step 404: Determine the reference power backoff value based on the time-frequency resource location, number of resource blocks, and modulation method of the terminal device.

[0153] In some implementations, the terminal device stores at least one set of correspondences between the time-frequency resource locations of the terminal device, the number of resource blocks, and the modulation scheme of the terminal device and the reference power backoff value.

[0154] Alternatively, different power levels of terminal devices can correspond to different relationships.

[0155] Optionally, the above correspondence can be stored in at least one table, that is, the table includes the correspondence between the time-frequency resource location of the terminal device, the number of resource blocks, and the modulation method of the terminal device and the reference power back-off value. Different power levels of terminal devices can correspond to different tables.

[0156] For example, Table 1 shows the correspondence between the time-frequency resource location, resource block number, and modulation method of the terminal device and the reference power backoff value when the power level of the terminal device is 3. Table 2 shows the correspondence between the time-frequency resource location, resource block number, and modulation method of the terminal device and the reference power backoff value when the power level of the terminal device is 2, and so on.

[0157] Among them, the time-frequency resource location of the terminal device refers to the position of the time-frequency resources allocated to the terminal device in the transmission bandwidth configuration. It is generally divided into inner time-frequency resource allocation, outer time-frequency resource allocation and edge time-frequency resource allocation. The inner time-frequency resource allocation can be further divided into region 1 and region 2.

[0158] It is understandable that the definition of time-frequency resource location can be different in different application scenarios. That is, the definition of which time-frequency resource allocation belongs to internal time-frequency resource allocation, which time-frequency resource allocation belongs to external time-frequency resource allocation, and which time-frequency resource allocation belongs to edge time-frequency resource allocation can be different.

[0159] Optionally, the time-frequency resource in this application embodiment is a resource block (RB).

[0160] The terminal device can find the table corresponding to its own power level, and determine the corresponding reference power backoff value in the table based on the time and frequency resource location, the number of resource blocks, and the modulation method of the terminal device.

[0161] Step 405: Determine the power back-off value based on the reference power back-off value and the power offset value.

[0162] After determining the reference power backoff value and the power offset value, the terminal device determines its own power backoff value based on these two values.

[0163] In some implementations, the power backoff value is equal to the reference power backoff value minus the power offset value.

[0164] Step 406: Determine the power of the terminal device based on the power backoff value.

[0165] Step 407: Send the power of the device to the network device.

[0166] In the embodiments of this application, steps 406 and 407 can be implemented in any of the embodiments of this application. The embodiments of this application do not limit this and will not elaborate further.

[0167] In summary, by receiving indication information sent by network devices, out-of-band transmission limit information of the terminal device is determined based on this indication information. A power offset value is then determined based on this out-of-band transmission limit information. A reference power backoff value is determined based on the terminal device's time-frequency resource location, resource block number, and modulation scheme. Finally, a power backoff value is determined based on this reference power backoff value and the power offset value. This allows the terminal device to determine different power levels based on different out-of-band transmission limits and different power backoff values ​​depending on the situation. In some special cases, this reduces unnecessary power backoff, increases uplink coverage of the terminal, and effectively improves communication efficiency and the quality of the communication link.

[0168] Please see Figure 5 , Figure 5 This is a schematic flowchart illustrating a power determination method provided in an embodiment of this application. It should be noted that the power determination method in this embodiment is executed by a terminal device. Figure 5 As shown, the method may include the following steps:

[0169] Step 501: Determine the location information of the terminal device.

[0170] Optionally, the terminal device can determine its location information based on the built-in positioning module or based on relevant information received from the network device.

[0171] Step 502: Based on the location information, determine the out-of-band transmission restriction information of the terminal device.

[0172] Optionally, when the terminal device determines that its location information is in a preset area, the terminal device can relax the restrictions on out-of-band transmission.

[0173] In some implementations, different preset regions correspond to different out-of-band emission restriction information.

[0174] It is understandable that when the location information is not in the preset area, the terminal device cannot relax the restrictions on out-of-band transmission.

[0175] Optionally, the out-of-band emission limit of the terminal device has a standard reference value. After determining that its location information is in a preset area and that the restriction on out-of-band emission can be relaxed, the terminal device determines the amount of change between the out-of-band emission limit information and the standard reference value as a set ratio of the standard reference value, or determines the amount of change between the out-of-band emission limit information and the standard reference value.

[0176] In some implementations, different preset regions can be set with different ratios, corresponding to different out-of-band emission restriction information.

[0177] For example, if the location information of the terminal device is determined to be a desert, it can be determined that the restrictions on out-of-band transmission of the terminal device can be relaxed, with a setting ratio of 20% or a change value of 10. If the location information of the terminal device is determined to be a mountainous area, it can be determined that the restrictions on out-of-band transmission of the terminal device can be relaxed, with a setting ratio of 10% or a change value of 5, and so on.

[0178] Understandably, when the location information is not in the preset area, the terminal device cannot relax the restrictions on out-of-band transmission and must determine that the change between the out-of-band transmission restriction information and the standard reference value is 0% of the standard reference value.

[0179] Step 503: Determine the power back-off value based on the out-of-band transmit restriction information, the time-frequency resource location of the terminal device, the number of resource blocks, and the modulation method of the terminal device.

[0180] Step 504: Determine the power of the terminal device based on the power backoff value.

[0181] Step 505: Send the power of the device to the network device.

[0182] In the embodiments of this application, steps 503, 504 and 505 can be implemented in any of the embodiments of this application. The embodiments of this application do not limit this and will not elaborate further.

[0183] In summary, by determining the location information of the terminal device, and based on this location information, the out-of-band transmission limit information of the terminal device is determined. Based on the out-of-band transmission limit information, the time-frequency resource location of the terminal device, the number of resource blocks, and the modulation method of the terminal device, a power backoff value is determined. Based on this power backoff value, the power of the terminal device is determined. This allows the terminal device to determine different power levels based on different out-of-band transmission limits and different power backoff values ​​based on different situations. In some special cases, unnecessary power backoff can be reduced, the uplink coverage of the terminal can be increased, and the communication efficiency and quality of the communication link can be effectively improved.

[0184] Please see Figure 6 , Figure 6 This is a schematic flowchart illustrating a power determination method provided in an embodiment of this application. It should be noted that the power determination method in this embodiment is executed by a terminal device. Figure 6 As shown, the method may include the following steps:

[0185] Step 601: Determine the location information of the terminal device.

[0186] Optionally, the terminal device can determine its location information based on the built-in positioning module or based on relevant information received from the network device.

[0187] Step 602: Based on the location information, determine the out-of-band transmission restriction information of the terminal device.

[0188] Optionally, when the terminal device determines that its location information is in a preset area, the terminal device can relax the restrictions on out-of-band transmission.

[0189] In some implementations, different preset regions correspond to different out-of-band emission restriction information.

[0190] It is understandable that when the location information is not in the preset area, the terminal device cannot relax the restrictions on out-of-band transmission.

[0191] Optionally, the out-of-band emission limit of the terminal device has a standard reference value. After the terminal device determines that its location information is in a preset area and that the indication information for relaxing the out-of-band emission limit is given, it determines the amount of change between the out-of-band emission limit information and the standard reference value as the set ratio of the standard reference value.

[0192] In some implementations, different preset regions can be set with different ratios, corresponding to different out-of-band emission restriction information.

[0193] For example, if the location information of the terminal device is determined to be a desert, and the terminal device can relax the restrictions on out-of-band transmission, the percentage can be set to 20% or the change value can be n. If the location information of the terminal device is determined to be a mountainous area, and the terminal device can relax the restrictions on out-of-band transmission, the percentage can be set to 10% or the change value can be m, and so on.

[0194] Understandably, when the location information is not in the preset area, the terminal device cannot relax the restrictions on out-of-band transmission and must determine that the change between the out-of-band transmission restriction information and the standard reference value is 0% of the standard reference value.

[0195] Step 603: Determine the power offset value based on the out-of-band emission limitation information.

[0196] The power offset value refers to the offset amount relative to the reference power backoff value.

[0197] In some implementations, different out-of-band emission limit information corresponds to different power offset values.

[0198] For example, when the change between the out-of-band emission limit information and the standard reference value is 0% of the standard reference value or the change between the out-of-band emission limit information and the standard reference value is 0%, the corresponding power offset value is offset1. When the change between the out-of-band emission limit information and the standard reference value is 10% of the standard reference value or the change between the out-of-band emission limit information and the standard reference value is m1, the corresponding power offset value is offset2, and so on.

[0199] Understandably, the power offset value corresponding to the out-of-band emission limit information can be set differently depending on environmental requirements and other factors, and the offset value can also be set to 0.

[0200] In some implementations, the terminal device may also determine whether an offset value is needed based on out-of-band emission restriction information. For example, when the change between the out-of-band emission restriction information and the standard reference value is 0% of the standard reference value, or when the change between the out-of-band emission restriction information and the standard reference value is 0%, or when the location information of the terminal device is not in a preset area, the terminal device does not need to set an offset value.

[0201] Step 604: Determine the reference power backoff value based on the time-frequency resource location, number of resource blocks, and modulation method of the terminal device.

[0202] Step 605: Determine the power back-off value based on the reference power back-off value and the power offset value.

[0203] Step 606: Determine the power of the terminal device based on the power backoff value.

[0204] Step 607: Send the power of the device to the network device.

[0205] In the embodiments of this application, steps 604, 605, 606 and 607 can be implemented in any of the ways in the embodiments of this application. The embodiments of this application do not limit this, nor will they be described in detail.

[0206] In summary, by determining the location information of the terminal device, out-of-band transmission limit information of the terminal device is determined based on the location information, a power offset value is determined based on the out-of-band transmission limit information, a reference power backoff value is determined based on the time-frequency resource location, resource block number, and modulation method of the terminal device, a power backoff value is determined based on the reference power backoff value and the power offset value, and the power of the terminal device is determined based on the power backoff value. This allows the terminal device to determine different powers based on different out-of-band transmission limits and different power backoff values ​​based on different situations. In some special cases, unnecessary power backoff can be reduced, the uplink coverage of the terminal can be increased, and the communication efficiency and communication link quality can be effectively improved.

[0207] Please see Figure 7 , Figure 7 This is a schematic flowchart illustrating a power determination method provided in an embodiment of this application. It should be noted that the power determination method in this embodiment is executed by a network device. Figure 7 As shown, the method may include the following steps:

[0208] Step 701: Send indication information to the terminal device, which is used to indicate the out-of-band transmission restriction information of the terminal device.

[0209] This indication information is sent from the network device to the terminal device to determine the terminal device's out-of-band emission limit information. The terminal device can then determine its power based on this out-of-band emission limit information.

[0210] Optionally, the network device determines the out-of-band emission restriction information of the terminal device based on the geographical characteristics of its deployment location or relevant regulatory requirements, and instructs the terminal device to determine the out-of-band emission restriction information through this indication information.

[0211] Optionally, the out-of-band emission limiting information includes at least one of the following: adjacent channel leakage ratio (ACLR), out-of-band radiation, and out-of-band stray radiation.

[0212] It is understandable that the out-of-band emission limit information can be at least one of the following: the lower limit of the adjacent channel leakage ratio ACLR, the upper limit of out-of-band radiation, and the upper limit of out-of-band spurious radiation. In other words, it means that the adjacent channel leakage ratio ACLR, out-of-band radiation, and out-of-band spurious radiation must not exceed the limit value.

[0213] In some implementations, the network device sends a 1-bit indication message that indicates whether the terminal device can relax restrictions on out-of-band transmission.

[0214] Optionally, the indicator information can be set to 0 to indicate that relaxation is allowed, and 1 to indicate that relaxation is not allowed, or the indicator information can be set to 1 to indicate that relaxation is allowed, and 0 to indicate that relaxation is not allowed.

[0215] It is understandable that after receiving an instruction that the restrictions on out-of-band transmission can be relaxed, the terminal device can directly determine the default value of the degree of relaxation of the restrictions on out-of-band transmission. Different default values ​​of relaxation can be set according to different environmental requirements, etc.

[0216] In some implementations, the indication information sent by the network device consists of multiple bits, which can indicate the degree of relaxation of the restrictions on out-of-band transmission by the terminal device.

[0217] For example, the indication information is 2 bits. Indication information 00 corresponds to a relaxation level of 0% of the standard, 01 corresponds to a relaxation level of 10% of the standard, 10 corresponds to a relaxation level of 20% of the standard, and 11 corresponds to a relaxation level of 30% of the standard. That is, after receiving indication information 00, the terminal device determines that the change between the out-of-band emission limit information and the standard reference value is 0% of the standard reference value, meaning that the restriction on out-of-band emission cannot be relaxed. After receiving indication information 01, the terminal device determines that the change between the out-of-band emission limit information and the standard reference value is 10% of the standard reference value. After receiving indication information 10, the terminal device determines that the change between the out-of-band emission limit information and the standard reference value is 20% of the standard reference value. After receiving indication information 11, the terminal device determines that the change between the out-of-band emission limit information and the standard reference value is 30% of the standard reference value.

[0218] The standard reference value refers to the out-of-band emission restriction information of the terminal device before it determines that it can relax the restrictions on out-of-band emissions. In other words, it is the out-of-band emission restriction information when the terminal does not relax the restrictions on out-of-band emissions. The terminal device can determine this standard reference value. It can be understood that the standard reference value can be dynamically set and adjusted according to factors such as the capabilities of the terminal device, the environment, and the requirements of relevant regulations.

[0219] It is understandable that relaxing the ACLR limit for adjacent channel leakage means reducing the lower limit of the ACLR, relaxing the out-of-band radiation limit means increasing the upper limit of the out-of-band radiation, and relaxing the out-of-band stray radiation limit means increasing the upper limit of the out-of-band stray radiation.

[0220] It is understandable that the instruction information and the corresponding level of relaxation can be set differently depending on environmental needs and other factors.

[0221] In some implementations, the indication information sent by the network device consists of multiple bits, which can indicate the specific value of the out-of-band emission limit information of the terminal device. For example, some bits in the indication information represent the adjacent channel leakage ratio (ACLR) value, and some bits represent the spurious radiation value, etc.

[0222] In summary, by sending indication information to the terminal device to determine its out-of-band transmission limit information, and then determining the terminal device's power based on this out-of-band transmission limit information, the terminal device can determine the out-of-band transmission limit information and, based on different out-of-band transmission limits, determine different power back-off values ​​according to different situations. This can reduce unnecessary power back-off in some special cases, increase the terminal's uplink coverage, and effectively improve communication efficiency and communication link quality.

[0223] Please see Figure 8 , Figure 8 This is a schematic flowchart illustrating a power determination method provided in an embodiment of this application. It should be noted that the power determination method in this embodiment is executed by a network device. Figure 8 As shown, the method may include the following steps:

[0224] Step 801: Send indication information to the terminal device, which is used to indicate the out-of-band transmission restriction information of the terminal device.

[0225] This indication information is sent from the network device to the terminal device to determine the terminal device's out-of-band emission limit information. The terminal device can then determine its power based on this out-of-band emission limit information.

[0226] Optionally, the network device determines the out-of-band emission restriction information of the terminal device based on the geographical characteristics of its deployment location or relevant regulatory requirements, and instructs the terminal device to determine the out-of-band emission restriction information through this indication information.

[0227] Optionally, the out-of-band emission limiting information includes at least one of the following: adjacent channel leakage ratio (ACLR), out-of-band radiation, and out-of-band stray radiation.

[0228] In some implementations, the network device sends a 1-bit indication message that indicates whether the terminal device can relax restrictions on out-of-band transmission.

[0229] Optionally, the indicator information can be set to 0 to indicate that relaxation is allowed, and 1 to indicate that relaxation is not allowed, or the indicator information can be set to 1 to indicate that relaxation is allowed, and 0 to indicate that relaxation is not allowed.

[0230] It is understandable that after receiving an instruction that the restrictions on out-of-band transmission can be relaxed, the terminal device can directly determine the default value of the degree of relaxation of the restrictions on out-of-band transmission. Different default values ​​of relaxation can be set according to different environmental requirements, etc.

[0231] In some implementations, the network device sends an indication message consisting of multiple bits, which indicates the degree to which the terminal device relaxes the out-of-band emission restrictions. This degree of relaxation is related to the amount of change between the out-of-band emission restriction information and a standard reference value, or to a set proportion of the standard reference value.

[0232] The standard reference value refers to the out-of-band emission restriction information of the terminal device before it determines that it can relax the restrictions on out-of-band emissions. In other words, it is the out-of-band emission restriction information when the terminal does not relax the restrictions on out-of-band emissions. The terminal device can determine this standard reference value. It can be understood that the standard reference value can be dynamically set and adjusted according to factors such as the capabilities of the terminal device, the environment, and the requirements of relevant regulations.

[0233] For example, the indication information is 2 bits. The proportion corresponding to indication information 00 is 0%, 01 is 10%, 10 is 20%, and 11 is 30%. That is, after receiving the indication information 00, the terminal device determines that the change between the out-of-band emission limit information and the standard reference value is 0% of the standard reference value, meaning that the restriction on out-of-band emission cannot be relaxed. After receiving the indication information 01, the terminal device determines that the change between the out-of-band emission limit information and the standard reference value is 10% of the standard reference value. After receiving the indication information 10, the terminal device determines that the change between the out-of-band emission limit information and the standard reference value is 20% of the standard reference value. After receiving the indication information 11, the terminal device determines that the change between the out-of-band emission limit information and the standard reference value is 30% of the standard reference value.

[0234] Alternatively, the change value corresponding to indication information 00 is 0, the change value corresponding to 01 is m1, the change value corresponding to 10 is m2, and the change value corresponding to 11 is m3. That is, after receiving indication information 00, the terminal device determines that the change between the out-of-band emission limit information and the standard reference value is 0, which means that the restriction on out-of-band emission cannot be relaxed. After receiving indication information 01, it determines that the change between the out-of-band emission limit information and the standard reference value is m1. After receiving indication information 10, it determines that the change between the out-of-band emission limit information and the standard reference value is m2. After receiving indication information 11, it determines that the change between the out-of-band emission limit information and the standard reference value is m3.

[0235] It is understandable that relaxing the ACLR limit for adjacent channel leakage means reducing the lower limit of the ACLR, relaxing the out-of-band radiation limit means increasing the upper limit of the out-of-band radiation, and relaxing the out-of-band stray radiation limit means increasing the upper limit of the out-of-band stray radiation.

[0236] It is understandable that the instruction information and the corresponding level of relaxation can be set differently depending on environmental needs and other factors.

[0237] In some implementations, the indication information sent by the network device consists of multiple bits, which can indicate the specific value of the out-of-band emission limit information of the terminal device. For example, some bits in the indication information represent the adjacent channel leakage ratio (ACLR) value, and some bits represent the spurious radiation value, etc.

[0238] Step 802: Receive the power of the terminal device sent by the terminal device.

[0239] In this embodiment of the application, after determining its own power, the terminal device sends the determined power to the network device. The network device receives the power and configures the power to the terminal device based on the received power.

[0240] In summary, by sending indication information to the terminal device to determine its out-of-band transmission limit information, and then determining the terminal device's power based on this out-of-band transmission limit information, and by receiving the terminal device's power information, the terminal device can determine the out-of-band transmission limit information and, based on different out-of-band transmission limits, determine different power back-off values ​​according to different situations. This can reduce unnecessary power back-off in some special cases, increase the terminal's uplink coverage, and effectively improve communication efficiency and communication link quality.

[0241] Corresponding to the power determination methods provided in the above embodiments, this application also provides a power determination device. Since the power determination device provided in this application corresponds to the methods provided in the above embodiments, the implementation of the power determination method is also applicable to the power determination device provided in the following embodiments, which will not be described in detail in the following embodiments.

[0242] Please see Figure 9 , Figure 9 This is a schematic diagram of a power determination device provided in an embodiment of this application.

[0243] like Figure 9 As shown, the power determination device 900 includes: a processing unit 910, wherein:

[0244] Processing unit 910 is used to determine out-of-band transmission restriction information of the terminal device;

[0245] The processing unit 910 is further configured to determine the power of the terminal device based on the out-of-band emission limitation information.

[0246] Optionally, the processing unit 910 is specifically configured to: receive indication information sent by the network device; and determine out-of-band transmission restriction information of the terminal device based on the indication information.

[0247] Optionally, the processing unit 910 is specifically used to: determine the location information of the terminal device; and determine the out-of-band emission restriction information of the terminal device based on the location information.

[0248] Optionally, the out-of-band emission limiting information includes at least one of: adjacent channel leakage ratio (ACLR), out-of-band radiation, and out-of-band stray radiation.

[0249] Optionally, the processing unit 910 is specifically configured to: determine a power backoff value based on the out-of-band transmit limit information, the time-frequency resource location of the terminal device, the number of resource blocks, and the modulation scheme of the terminal device; and determine the power of the terminal device based on the power backoff value.

[0250] Optionally, the processing unit 910 is specifically configured to: determine a power offset value based on the out-of-band transmit limitation information; determine a reference power backoff value based on the time-frequency resource location, resource block number, and modulation scheme of the terminal device; and determine the power backoff value based on the reference power backoff value and the power offset value.

[0251] Optionally, the apparatus further includes a transceiver unit for transmitting the power of the terminal device to the network device.

[0252] Optionally, the indication information is at least 1 bit, and the indication information is used to indicate whether the terminal device can relax the restrictions on out-of-band transmission.

[0253] Optionally, the indication information consists of multiple bits, which are used to indicate the degree to which the terminal device relaxes restrictions on out-of-band transmission.

[0254] The power determination device in this embodiment can determine the power of the terminal device by determining the out-of-band transmission limit information of the terminal device. This allows the terminal device to determine different power levels based on different out-of-band transmission limits and to determine different power back-off values ​​based on different situations. In some special cases, this can reduce unnecessary power back-off, increase the uplink coverage of the terminal, and effectively improve communication efficiency and the quality of the communication link.

[0255] Please see Figure 10 , Figure 10 This is a schematic diagram of a power determination device provided in an embodiment of this application.

[0256] like Figure 10 As shown, the power determination device 1000 includes: a transceiver unit 1010, wherein:

[0257] The transceiver unit 1010 is used to send instruction information to the terminal device;

[0258] The indication information is used to determine the out-of-band emission limit information of the terminal device, so as to determine the power of the terminal device based on the out-of-band emission limit information.

[0259] Optionally, the out-of-band emission limiting information includes at least one of: adjacent channel leakage ratio (ACLR), out-of-band radiation, and out-of-band stray radiation.

[0260] Optionally, the indication information is at least 1 bit, and the indication information is used to indicate whether the terminal device can relax the restrictions on out-of-band transmission.

[0261] Optionally, the indication information consists of multiple bits, which are used to indicate the degree to which the terminal device relaxes restrictions on out-of-band transmission.

[0262] Optionally, the transceiver unit 1010 is further configured to: receive the power of the terminal device transmitted by the terminal device.

[0263] The power determination device in this embodiment can send indication information to the terminal device to determine the out-of-band transmission limit information of the terminal device. Based on the out-of-band transmission limit information, the device can determine the power of the terminal device, enabling the terminal device to determine the out-of-band transmission limit information and determine different power values ​​according to different out-of-band transmission limits. It can also determine different power back-off values ​​according to different situations, thereby reducing unnecessary power back-off in some special cases, increasing the uplink coverage of the terminal, and effectively improving the efficiency of communication and the quality of the communication link.

[0264] To implement the above embodiments, this application also proposes a communication device, including: a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to cause the device to perform... Figures 2 to 6 The method shown in the embodiment.

[0265] To implement the above embodiments, this application also proposes a communication device, including: a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program stored in the memory to cause the device to perform... Figures 7 to 8 The method shown in the embodiment.

[0266] To implement the above embodiments, this application also proposes a communication device, including: a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to execute the code instructions to perform... Figures 2 to 6 The method shown in the embodiment.

[0267] To implement the above embodiments, this application also proposes a communication device, including: a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to execute the code instructions to perform... Figures 7 to 8 The method shown in the embodiment.

[0268] Please see Figure 11 , Figure 11 This is a schematic diagram of another power determination device provided in this embodiment. The power determination device 1100 can be a network device, a terminal device, a chip, chip system, or processor that supports the network device in implementing the above method, or a chip, chip system, or processor that supports the terminal device in implementing the above method. This device can be used to implement the methods described in the above method embodiments, and for details, please refer to the description in the above method embodiments.

[0269] The power determination device 1100 may include one or more processors 1101. The processor 1101 may be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the power determination device (e.g., a base station, baseband chip, terminal equipment, terminal equipment chip, DU or CU, etc.), execute computer programs, and process data from the computer programs.

[0270] Optionally, the power determination device 1100 may further include one or more memories 1102, on which a computer program 1103 may be stored. The processor 1101 executes the computer program 1103 to cause the power determination device 1100 to perform the method described in the above method embodiments. The computer program 1103 may be embedded in the processor 1101, in which case the processor 1101 may be implemented in hardware.

[0271] Optionally, the memory 1102 may also store data. The power determination device 1100 and the memory 1102 can be configured separately or integrated together.

[0272] Optionally, the power determination device 1100 may further include a transceiver 1105 and an antenna 1106. The transceiver 1105 may be referred to as a transceiver unit, transceiver, or transceiver circuit, etc., and is used to implement the transmission and reception functions. The transceiver 1105 may include a receiver and a transmitter. The receiver may be referred to as a receiver or receiving circuit, etc., and is used to implement the receiving function; the transmitter may be referred to as a transmitter or transmitting circuit, etc., and is used to implement the transmitting function.

[0273] Optionally, the power determination device 1100 may further include one or more interface circuits 1107. The interface circuits 1107 are used to receive code instructions and transmit them to the processor 1101. The processor 1101 executes the code instructions to cause the power determination device 1100 to perform the method described in the above method embodiments.

[0274] The power determination device 1100 is a terminal device; the transceiver 1105 is used for execution. Figure 3 Step 305 in the middle; Figure 4 Step 407 in the middle; Figure 5 Step 505 in the middle; Figure 6 Step 607; Processor 1101 is used to execute Figure 3 Steps 301 to 304 in the process; Figure 4 Steps 401 to 406 in the process; Figure 5 Steps 501 to 504 in the process; Figure 6 Steps 601 to 607 in the process.

[0275] The power determination device 1100 is a network device, and the transceiver 1105 is used to perform... Figure 7 Step 701 in the middle; Figure 8 Steps 801 to 802 in the process.

[0276] In one implementation, the processor 1101 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing receiving and transmitting functions may be separate or integrated. The aforementioned transceiver circuit, interface, or interface circuit can be used for reading and writing code / data, or it can be used for transmitting or relaying signals.

[0277] In one implementation, the power determination device 1100 may include circuitry capable of transmitting, receiving, or communicating as described in the aforementioned method embodiments. The processor and transceiver described in this disclosure can be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application-specific integrated circuits (ASICs), printed circuit boards (PCBs), electronic devices, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductors (CMOS), n-metal-oxide-semiconductor (NMOS), positive channel metal oxide semiconductors (PMOS), bipolar junction transistors (BJTs), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0278] The power determination device described in the above embodiments can be a network device or a terminal device, but the scope of the power determination device described in this disclosure is not limited to this, and the structure of the power determination device is not limited to this. Figures 9-10 The power determination device can be a standalone device or part of a larger device. For example, the power determination device could be:

[0279] (1) Independent integrated circuit IC, or chip, or chip system or subsystem;

[0280] (2) A collection of one or more ICs, optionally including storage components for storing data and computer programs;

[0281] (3) ASIC, such as modem;

[0282] (4) Modules that can be embedded in other devices;

[0283] (5) Receivers, terminal equipment, smart terminal equipment, cellular phones, wireless equipment, handheld devices, mobile units, vehicle-mounted equipment, network equipment, cloud equipment, artificial intelligence equipment, etc.

[0284] (6) Others, etc.

[0285] For cases where the power determination device can be a chip or a chip system, please refer to [link to relevant documentation]. Figure 12 The diagram shows the structure of the chip. Figure 12 The chip shown includes a processor 1201 and an interface 1202. There can be one or more processors 1201, and multiple interfaces 1202.

[0286] For cases where the chip is used to implement the functions of the network device in the embodiments of this disclosure:

[0287] Interface 1202 is used for code instructions and their transmission to the processor;

[0288] Processor 1201 is used to run code instructions to perform, such as Figures 2 to 6 The method.

[0289] Regarding the case where the chip is used to implement the functions of the terminal device in the embodiments of this disclosure:

[0290] Interface 1202 is used for code instructions and their transmission to the processor;

[0291] Processor 1201 is used to run code instructions to perform, such as Figures 7 to 8 The method.

[0292] Optionally, the chip also includes a memory 1203 for storing necessary computer programs and data.

[0293] Those skilled in the art will also understand that the various illustrative logical blocks and steps listed in the embodiments of this disclosure can be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented in hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the functionality using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this disclosure.

[0294] This disclosure also provides a communication system, which includes the aforementioned... Figures 9-10 The embodiments include a power determination device as a terminal device and a power determination device as a network device; alternatively, the system may include the aforementioned... Figure 11 The embodiments include a power determination device as a terminal device and a power determination device as a network device.

[0295] This disclosure also provides a readable storage medium having instructions stored thereon that, when executed by a computer, implement the functions of any of the above method embodiments.

[0296] This disclosure also provides a computer program product that, when executed by a computer, implements the functions of any of the above method embodiments.

[0297] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer programs. When a computer program is loaded and executed on a computer, it generates, in whole or in part, the flow or function according to the embodiments of this disclosure. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, a computer program can be transferred from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state disks (SSDs)).

[0298] Those skilled in the art will understand that the various numerical designations such as "first," "second," etc., used in this disclosure are merely for the convenience of description and are not intended to limit the scope of the embodiments of this disclosure, nor do they indicate the order of events.

[0299] At least one of the features described in this disclosure can also be described as one or more, and multiple features can be two, three, four or more, and this disclosure does not impose any limitations. In the embodiments of this disclosure, for a technical feature, the technical features in that technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no sequential order or size order among the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0300] The correspondences shown in the tables of this disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values; this disclosure is not limiting. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, the correspondences shown in some rows of the tables in this disclosure may not be configured. Furthermore, appropriate modifications and adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the headers of the above tables can also use other names that the communication device can understand, and the values ​​or representations of the parameters can also be other values ​​or representations that the communication device can understand. In the implementation of the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables, etc.

[0301] The predefined terms in this disclosure can be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0302] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0303] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0304] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the embodiments of this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this invention can be achieved, and this is not limited herein.

[0305] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for determining power, characterized in that, The method is executed by a terminal device, and the method includes: Determine the out-of-band transmission restriction information of the terminal device; The power of the terminal device is determined based on the out-of-band transmission limitation information; The determination of the out-of-band transmission restriction information of the terminal device includes: Determine the location information of the terminal device, wherein the location information is used to determine the out-of-band transmission restriction information of the terminal device; The location information of the terminal device is in a preset region, which is used to determine the relaxation of restrictions on out-of-band transmission of the terminal device; different preset regions correspond to different degrees of relaxation of restrictions on out-of-band transmission.

2. The method according to claim 1, characterized in that, The out-of-band emission limitation information includes: Adjacent channel leakage ratio (ACLR), at least one of out-of-band radiation and out-of-band stray radiation.

3. The method according to claim 2, characterized in that, Determining the power of the terminal device based on the out-of-band transmission limitation information includes: The power backoff value is determined based on the out-of-band transmit limit information, the time-frequency resource location of the terminal device, the number of resource blocks, and the modulation scheme of the terminal device. The power of the terminal device is determined based on the power backoff value.

4. The method according to claim 2, characterized in that, Determining the power of the terminal device based on the out-of-band transmission limitation information includes: The power offset value is determined based on the out-of-band emission limitation information; The reference power backoff value is determined based on the time-frequency resource location, the number of resource blocks, and the modulation method of the terminal device. The power back-off value is determined based on the reference power back-off value and the power offset value.

5. The method according to claim 3 or 4, characterized in that, The method further includes: Send the power of the terminal device to the network device.

6. A method for determining power, characterized in that, The method is performed by a network device, and the method includes: The power of the terminal device is sent by the receiving terminal device; The power of the terminal device is determined by the terminal device based on out-of-band emission restriction information, which is determined by the terminal device based on the location information of the terminal device. The location information of the terminal device is in a preset region, which is used to determine the relaxation of the out-of-band emission restriction on the terminal device. Different preset regions correspond to different degrees of relaxation of the out-of-band emission restriction.

7. A power determining device, characterized in that, The device is used in a terminal device, and the device includes: The processing unit is used to determine the out-of-band transmission restriction information of the terminal device; The processing unit is further configured to determine the power of the terminal device based on the out-of-band emission limitation information; Specifically, the processing unit is used for: Determine the location information of the terminal device, wherein the location information is used to determine the out-of-band transmission restriction information of the terminal device; The location information of the terminal device is in a preset region, which is used to determine the relaxation of restrictions on out-of-band transmission of the terminal device; different preset regions correspond to different degrees of relaxation of restrictions on out-of-band transmission.

8. The apparatus according to claim 7, characterized in that, The out-of-band emission limitation information includes: Adjacent channel leakage ratio (ACLR), at least one of out-of-band radiation and out-of-band stray radiation.

9. The apparatus according to claim 8, characterized in that, The processing unit is specifically used for: The power backoff value is determined based on the out-of-band transmit limit information, the time-frequency resource location of the terminal device, the number of resource blocks, and the modulation scheme of the terminal device. The power of the terminal device is determined based on the power backoff value.

10. The apparatus according to claim 8, characterized in that, The processing unit is specifically used for: The power offset value is determined based on the out-of-band emission limitation information; The reference power backoff value is determined based on the time-frequency resource location, the number of resource blocks, and the modulation method of the terminal device. The power back-off value is determined based on the reference power back-off value and the power offset value.

11. The apparatus according to claim 9 or 10, characterized in that, The device further includes: The transceiver unit is used to send the power of the terminal device to the network device.

12. A power determining device, characterized in that, The device is used in a network device, and the device includes: Transceiver unit, used for The power of the terminal device is sent by the receiving terminal device; The power of the terminal device is determined by the terminal device based on out-of-band emission restriction information, which is determined by the terminal device based on the location information of the terminal device. The location information of the terminal device is in a preset region, which is used to determine the relaxation of the out-of-band emission restriction on the terminal device. Different preset regions correspond to different degrees of relaxation of the out-of-band emission restriction.

13. A communication device, characterized in that, The device includes a processor and a memory, the memory storing a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method as described in any one of claims 1 to 5.

14. A communication device, characterized in that, The device includes a processor and a memory, the memory storing a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method as described in claim 6.

15. A communication device, characterized in that, include: Processor and interface circuitry; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method as described in any one of claims 1 to 5.

16. A communication device, characterized in that, include: Processor and interface circuitry; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to run the code instructions to perform the method as described in claim 6.

17. A computer-readable storage medium for storing instructions that, when executed, cause the method of any one of claims 1 to 5 to be implemented.

18. A computer-readable storage medium for storing instructions that, when executed, cause the method of claim 6 to be implemented.

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