Communication method and communication device

Abstract

The invention discloses a communication method and a communication device. The method comprises: a terminal device sends capability information of the terminal device to a network device, the capability information being used for indicating that the terminal device can perform transmission power enhancement on a specific RB allocation area under a first condition; wherein the first condition comprises that the terminal equipment does not need to meet the first RF index or the terminal equipment only needs to meet the second RF index, and the second RF index is a relaxed first RF index; and performing transmission power enhancement in the specific RB allocation area under the first condition. According to the embodiment of the invention, the reliability of transmitting power enhancement of the terminal equipment can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, and in particular to a communication method and a communication device. BACKGROUND

[0002] In a mobile communication network, the transmit power of a terminal device is a key factor to ensure the uplink performance of a cell. The transmit power of the terminal device is mainly limited by the radio frequency front-end device-power amplifier (PA). The main function of the PA is to convert a low-power signal into a higher-power radio frequency signal, thereby reducing the signal attenuation between the transmitter and the receiver, and ensuring that the receiver can receive a strong enough signal. However, the core semiconductor device of the PA is a transistor, which has a nonlinear characteristic. The harmonics and intermodulation distortion generated by the interaction between the input signal and the nonlinearity of the PA will cause the signal quality to decrease, and thus affect the effective transmission and reception of information. In addition, due to the nonlinear effect, high-order harmonics and intermodulation products are generated, which can fall into adjacent channels, thereby forming electromagnetic interference to the signals in the adjacent channels, and seriously affecting the effective use of spectrum resources.

[0003] In order to ensure the in-band signal quality and suppress the out-of-band interference, the 3rd generation partnership project (3GPP) radio frequency protocol defines multiple radio frequency (RF) indicators to regulate the implementation of the terminal device, such as error vector magnitude (EVM), in-band emission (IBE), adjacent channel leakage ratio (ACLR), spectral emission mask (SEM), and spurs, etc. Since higher transmit power means that the nonlinearity of the PA is more serious, as the transmit power of the terminal device increases, the protocol allows the terminal device to have a certain maximum power reduction (MPR). These reduction parameters take into account that the nonlinearity of the PA is very serious at high power, and cannot meet the defined RF indicators. The MPR is mainly related to different resource block (RB) allocation regions, different modulation methods, and different waveforms, etc. Among them, the RB allocation region can be divided into an edge RB allocation region, an outer RB allocation region, and an inner RB allocation region.

[0004] The terminal device can improve the power by reducing the implementation margin. However, the method is only applicable to the inner RB allocation area of the discrete fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM), and cannot support the power-limited cell edge or multi-RB demand service. Therefore, how to improve the reliability of the terminal device transmission power enhancement is an urgent problem to be solved. SUMMARY

[0005] Embodiments of the present application provide a communication method and a communication device to improve the reliability of the terminal device transmission power enhancement.

[0006] In a first aspect, embodiments of the present application provide a communication method, which can be executed by a terminal device, a module (such as a processor, a chip, or a chip system) applied to the terminal device, a logic node, a logic module, or software capable of realizing all or part of the terminal device functions. The method can include: the terminal device sends the capability information of the terminal device to the network device, the capability information of the terminal device being used to indicate that the terminal device can perform transmission power enhancement on a specific RB allocation area under a first condition; wherein the first condition includes that the terminal device does not need to meet a first RF index or the terminal device only needs to meet a second RF index, and the second RF index is a relaxed first RF index; and performing transmission power enhancement in the specific RB allocation area under the first condition.

[0007] In the scheme provided by the present application, the terminal device can send the capability information to the network device, and the capability information is used to indicate that the terminal device can perform transmission power enhancement on a specific RB allocation area under a first condition, so that the terminal device can perform transmission power enhancement on the specific RB allocation area under the first condition, and the first condition includes not needing to meet the first RF index or only needing to meet the second RF index. That is, on the specific RB allocation area, the terminal device can perform transmission power enhancement under the condition of different relaxed RF indexes. Through the relaxation of the RF index, the terminal device can realize transmission power enhancement only by judging and adjusting the corresponding PA parameters (such as not needing to meet the first RF index or only needing to meet the second RF index) of the specific RB allocation area without changing the software and hardware, so as to improve the reliability of the terminal device transmission power enhancement.

[0008] In one possible implementation, the RB start position RB Start satisfies the following condition: RB Start < RB Start,Low + P2 or RBStart RB Start,High +P3. Wherein, RB Start,Low = max(1, floor(L CRB / 2)), RB Start,High = N RB -RB Start,Low -L CRB , L CRB < ceil(N RB / 2), P2, P3 are related to N RB , and N RB represents the maximum number of RBs of the channel bandwidth of the terminal device, and ceil is the minimum integer greater than or equal to N RB / 2. By implementing the possible implementation, the RB allocation area suitable for power enhancement under the first condition is defined, so that the terminal device can be ensured to perform power enhancement in the specific RB allocation area under the first condition.

[0009] In one possible implementation, if the first condition includes that the terminal device only needs to meet the second RF indicator, different specific RB allocation areas correspond to different second RF indicators. By implementing the possible implementation, if the first condition is only to meet the second RF indicator, since the specific RB allocation area is related to the RB start position and the number of RBs, that is, different RB start positions and / or different numbers of RBs can obtain different specific RB allocation areas, and the second RF indicator can be different according to the difference of different specific RB allocation areas. Different specific RB allocation areas correspond to different second RF indicators, which can make the terminal device obtain different power gains according to different RB allocation areas, and be more accurate.

[0010] In one possible implementation, the terminal device performs transmit power enhancement in the specific RB allocation area under the first condition, including: receiving first indication information from the network device, the first indication information being used to indicate the terminal device to perform transmit power enhancement in the specific RB allocation area under the first condition; and performing transmit power enhancement in the specific RB allocation area under the first condition according to the first indication information. By implementing the possible implementation, the network device can configure / activate the terminal device to perform transmit power enhancement in the specific RB allocation area under the first condition through indication information. Through the strategy configuration of the network device, the implementation of the transmit power enhancement of the terminal device can be more flexible.

[0011] In a possible implementation, the first indication information corresponds to a first value, and is used to indicate that the terminal device does not need to meet the first RF indicator while performing the transmission power enhancement in the specific RB allocation region. By implementing the possible implementation, the network device indicates different first conditions (i.e., the first indication information corresponds to different values) to the terminal device according to different application scenarios, so that different power gains can be obtained in different scenarios.

[0012] In a possible implementation, the first indication information corresponds to a second value, and is used to indicate that the terminal device only needs to meet the second RF indicator while performing the transmission power enhancement in the specific RB allocation region. By implementing the possible implementation, the network device indicates different first conditions (i.e., the first indication information corresponds to different values) to the terminal device according to different application scenarios, so that different power gains can be obtained in different scenarios.

[0013] In a possible implementation, the method can further include: receiving third indication information from the network device, the third indication information being used to indicate frequency domain resources for uplink transmission of the terminal device, the frequency domain resources for uplink transmission of the terminal device including a starting position of RBs for uplink transmission of the terminal device and a number of the RBs for uplink transmission of the terminal device. By implementing the possible implementation, the network device can configure the frequency domain resources for uplink transmission of the terminal device, so that the terminal device can perform uplink transmission on the configured frequency domain resources. Further, in the embodiment of the present application, the terminal device can determine, according to the third indication information, that the frequency domain resources for uplink transmission of the terminal device are in the specific RB allocation region, and if so, can perform the transmission power enhancement in the specific RB allocation region under the first condition, thereby improving the reliability of the transmission power enhancement of the terminal device.

[0014] In a possible implementation, the method can further include: determining, according to the first indication information of the network device and the specific RB allocation region, that the frequency domain resources for uplink transmission of the terminal device from the network device are in the specific RB allocation region. By implementing the possible implementation, if the network device configures / activates the terminal device to perform the transmission power enhancement in the specific RB allocation region under the first condition through the indication information, the terminal device can first determine, according to the first indication information and the specific RB allocation region, that the frequency domain resources for uplink transmission are in the specific RB allocation region, and if so, can perform the transmission power enhancement in the specific RB allocation region under the first condition, thereby improving the reliability of the transmission power enhancement of the terminal device.

[0015] In a possible implementation, the method can further include: receiving second indication information from the network device, the second indication information being used to indicate that the terminal device needs to satisfy the first RF indicator without performing the transmission power enhancement in the specific RB allocation area. By implementing the possible implementation, the network device can further deconfigure / deactivate the terminal device through the indication information, i.e., indicate that the terminal device needs to satisfy the first RF indicator without performing the transmission power enhancement in the specific RB allocation area.

[0016] In a possible implementation, the transmission power enhancement includes a first value of MPR reduction or a first parameter of transmission power increase of the terminal device. By implementing the possible implementation, the transmission power enhancement can be implemented by the first value of MPR reduction or the first parameter of transmission power increase of the terminal device, so that the implementation of the transmission power enhancement of the terminal device is more flexible.

[0017] In a possible implementation, a first value or a first parameter corresponding to a discrete fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) waveform and a cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) waveform are different, or a first value or a first parameter corresponding to different modulation modes are different. By implementing the possible implementation, for the first value of MPR reduction, the first values corresponding to different modulation modes and different waveforms can be the same or different, and the implementation is more flexible. Further, the first values corresponding to different modulation modes and different waveforms are different, so that the first value is different according to the modulation mode and the waveform, and the implementation of the transmission power enhancement of the terminal device is more accurate.

[0018] In a possible implementation, the first indication information or the second indication information is carried in an information element (IE), a radio resource control (RRC), or a media access control control entity (MAC CE).

[0019] In a possible implementation, the RF indicators include one or more of the following: an adjacent channel leakage ratio (ACLR), a spectral emission mask (SEM), an in-band emission (IBE), an error vector magnitude (EVM), and a spur.

[0020] In a second aspect, the present application provides a communication method, which can be executed by a network device, a module (e.g., a processor, a chip, or a chip system) applied to the network device, a logic node, a logic module, or software that can realize all or part of the functions of the network device. The method can include: receiving, by the network device, capability information from a terminal device, the capability information of the terminal device indicating that the terminal device can perform transmit power enhancement on a specific RB allocation area under a first condition; and the first condition including that the terminal device does not need to meet a first RF indicator or the terminal device only needs to meet a second RF indicator, the second RF indicator being a relaxed first RF indicator.

[0021] In the scheme provided in the present application, the network device can receive capability information from a terminal device, the capability information indicating that the terminal device can perform transmit power enhancement on a specific RB allocation area under a first condition, so that the terminal device can perform transmit power enhancement on the specific RB allocation area under the first condition, and the first condition includes not needing to meet a first RF indicator or only needing to meet a second RF indicator. That is, on the specific RB allocation area, the terminal device can perform transmit power enhancement under the conditions of RF indicators with different degrees of relaxation. Through the relaxation of the RF indicators, the terminal device can perform transmit power enhancement by only judging and adjusting the corresponding PA parameters (such as not needing to meet the first RF indicator or only needing to meet the second RF indicator) of the specific RB allocation area without changing the software and hardware, thereby improving the reliability of the transmit power enhancement of the terminal device.

[0022] It should be understood that the execution subject of the second aspect can be a network device, the specific content of the second aspect corresponds to the content of the first aspect, and the corresponding features and beneficial effects of the second aspect can be referred to the description of the first aspect. To avoid repetition, the detailed description is appropriately omitted here.

[0023] In a possible implementation, the RB start position of the specific RB allocation area is RB Start satisfies the following condition: RB Start < RB Start,Low + P2 or RB Start > RB Start,High+P3. Wherein, RB Start,Low = max(1, floor(L CRB / 2)), RB Start,High = N RB -RB Start,Low -L CRB , L CRB < ceil(N RB / 2), P2, P3 are related to N RB , N RB represents the maximum number of RBs of the channel bandwidth of the terminal device, and ceil is the minimum integer greater than or equal to N RB / 2.

[0024] In a possible implementation, different specific RB allocation regions correspond to different second RF indicators if the first condition includes that the terminal device only needs to meet the second RF indicator.

[0025] In a possible implementation, the method can further include: sending, to the terminal device, first indication information, the first indication information being used to instruct the terminal device to perform transmit power enhancement in the specific RB allocation region under the first condition.

[0026] In a possible implementation, if there is no adjacent channel around the channel bandwidth of the terminal device or if there is an adjacent channel around the channel bandwidth of the terminal device but the adjacent channel belongs to the same application server, the first indication information corresponds to a first value, which is used to instruct the terminal device not to meet the first RF indicator and to perform transmit power enhancement in the specific RB allocation region.

[0027] In a possible implementation, if there is an adjacent channel around the channel bandwidth of the terminal device but the adjacent channel belongs to different application servers, the first indication information corresponds to a second value, which is used to instruct the terminal device to only meet the second RF indicator and to perform transmit power enhancement in the specific RB allocation region.

[0028] In a possible implementation, part or all of the terminal devices in the cell are allowed to perform transmit power enhancement on the specific RB allocation region under the first condition. By implementing the possible implementation, part or all of the terminal devices with the above-mentioned capability in the cell can be allowed to perform transmit power enhancement on the specific RB allocation region under the first condition, so that the control strategy is more flexible.

[0029] In a possible implementation, the method can further include: sending, to the terminal device, third indication information, the third indication information being used to instruct the frequency domain resource of the uplink transmission of the terminal device, the frequency domain resource of the uplink transmission of the terminal device including the starting position of the RB of the uplink transmission of the terminal device and the number of RBs of the uplink transmission of the terminal device.

[0030] In a possible implementation, the method further includes: sending, to the terminal device, second indication information, the second indication information being used to indicate that the terminal device needs to meet the first RF indicator without performing the transmission power enhancement in the specific RB allocation region.

[0031] In a possible implementation, the transmission power enhancement includes a decrease of the MPR by a first value or an increase of the transmission power of the terminal device by a first parameter.

[0032] In a possible implementation, the first value or the first parameter corresponding to the DFT-s-OFDM waveform and the CP-OFDM waveform are different; or the first value or the first parameter corresponding to different modulation modes are different.

[0033] In a possible implementation, the first indication information or the second indication information is carried in an IE, an RRC or a MAC CE.

[0034] In a possible implementation, the RF indicator includes one or more of the following: ACLR, SEM, IBE, EVM, and spurious.

[0035] In a third aspect, the present application provides a communication apparatus, which includes a module / unit for performing the method in the first aspect and any possible implementation thereof. The apparatus can be a terminal device, a module (for example, a chip, a chip system or a processor) applied to the terminal device, and also can be a logic node, a logic module or software capable of realizing all or part of the terminal device functions.

[0036] In a fourth aspect, the present application provides a communication apparatus, which includes a module / unit for performing the method in the second aspect and any possible implementation thereof. The apparatus can be a network device, a module (for example, a chip, a chip system or a processor) applied to the network device, and also can be a logic node, a logic module or software capable of realizing all or part of the network device functions.

[0037] In a fifth aspect, the present application provides a communication apparatus, which can be a terminal device, a chip, a chip system, a processor or the like supporting the terminal device to implement the above method, and also can be a logic node, a logic module or software capable of realizing all or part of the terminal device functions. The communication apparatus can also be a chip system. The communication apparatus can execute the method in the first aspect. The functions of the communication apparatus can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions. The unit can be software and / or hardware. The operations and beneficial effects of the communication apparatus can be referred to the method in the first aspect and the beneficial effects, and the repeated parts will not be described herein.

[0038] In a sixth aspect, the present application provides a communication apparatus, which can be a network device, a chip, a chip system, or a processor supporting the network device to implement the method described above, or a logic node, a logic module, or software capable of implementing all or part of the functions of the network device. The communication apparatus can also be a chip system. The communication apparatus can execute the method described in the second aspect. The functions of the communication apparatus can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the functions described above. The units can be software and / or hardware. The operations and advantages of the communication apparatus can be found in the method described in the second aspect and the advantages described above, and will not be repeated here.

[0039] In a seventh aspect, the present application provides a computer readable storage medium for storing computer execution instructions, when the computer execution instructions are executed, the method executed by the terminal device in the method described in the first aspect is implemented; or the method executed by the network device in the method described in the second aspect is implemented.

[0040] In an eighth aspect, the present application provides a computer program product including a computer program, when the computer program is executed, the method executed by the terminal device in the method described in the first aspect is implemented; or the method executed by the network device in the method described in the second aspect is implemented.

[0041] In a ninth aspect, the present application provides a communication system, which includes a communication apparatus (such as a terminal device) for executing the method described in the first aspect and a communication apparatus (such as a network device) for executing the method described in the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 is a schematic diagram of the architecture of a communication system 1000 to which embodiments of the present application are applied;

[0043] Figure 2 is a schematic diagram of a system architecture provided by embodiments of the present application;

[0044] Figure 3 is a schematic diagram of the amplitude curve of a time domain signal of input and output provided by embodiments of the present application;

[0045] Figure 4 is a schematic diagram of the frequency domain position corresponding to each radio frequency index provided by embodiments of the present application;

[0046] Figure 5 is a schematic diagram of the primary restricted RF index corresponding to the CP-OFDM waveform QPSK modulation mode provided by embodiments of the present application;

[0047] Figure 6 is a different RB allocation region map provided by an embodiment of the present application;

[0048] Figure 7 is a schematic diagram of an ACLR index provided by an embodiment of the present application;

[0049] Figure 8 is an interaction schematic diagram of a communication method provided by an embodiment of the present application;

[0050] Figure 9 is a schematic diagram of an RB allocation region provided by an embodiment of the present application;

[0051] Figure 10 and Figure 11 is a schematic diagram of a scenario provided by an embodiment of the present application;

[0052] Figure 12 is a schematic diagram of power gain of terminal device transmitting power enhancement on a specific RB allocation region under a first condition provided by an embodiment of the present application;

[0053] Figure 13 is an interaction schematic diagram of another communication method provided by an embodiment of the present application;

[0054] Figure 14 is an interaction schematic diagram of still another communication method provided by an embodiment of the present application;

[0055] Figure 15 and Figure 16 is a structural schematic diagram of a possible communication apparatus provided by an embodiment of the present application. DETAILED DESCRIPTION

[0056] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0057] The terms “first” and “second” and the like in the specification, claims and drawings of the present application are used to distinguish different objects, and are not used to describe a specific order. In addition, the terms “include” and “have” and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include other steps or units not listed or can optionally include other steps or units inherent to the process, method, product or device.

[0058] Reference to "an embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that any of the embodiments described herein can be incorporated into any other embodiment.

[0059] In the present application, "at least one" means one or more, "multiple" means two or more, "at least two" means two or three and three or more, and "and / or" is used to describe the relationship between associated objects, indicating that there can be three relationships, for example, "A and / or B" can mean: only A, only B, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects. "At least one of the following" or similar expressions means any combination of these items, including any combination of single or multiple items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0060] In the present application, "sending information" can be understood as one device sending information to another device, or also can be understood as one logical module in a device sending information to another logical module. For example, "network device sending information" can be understood as the network device sending information to another device (such as a terminal device), or can be understood as logical module 1 in the network device sending information to logical module 2 in the network device.

[0061] In the present application, "receiving information" can be understood as one device receiving information from another device, or also can be understood as one logical module in a device receiving information from another logical module. For example, "network device receiving information" can be understood as the network device receiving information from another device (such as a terminal device), or can be understood as logical module 1 in the network device receiving information from logical module 2 in the network device.

[0062] In this application, "sending information to (for example, a terminal device)" can be understood as that the destination of the information is the terminal device. It can include directly or indirectly sending information to the terminal device. "Receiving information from (for example, a terminal device)" or "receiving information from (for example, a terminal device)" can be understood as that the source of the information is the terminal device. It can include directly or indirectly receiving information from the terminal device. The information can be processed between the source and the destination of the information sending, for example, format change and the like, but the destination can understand the valid information from the source. Similar expressions in this application can be understood similarly, and will not be described here.

[0063] In order to better understand the embodiments of the present application, first, the system architecture related to the embodiments of the present application is introduced as follows:

[0064] The embodiments of the present application can be applied to a long term evolution (LTE) system, a 5th generation mobile communication (5G) system, a 6th generation mobile communication (6G) system and other communication systems evolved after 5G, a satellite communication system and a short-range wireless communication system. Among them, the wireless communication system mentioned in the embodiments of the present application includes but is not limited to three application scenarios of 5G / 6G mobile communication systems: enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC) and massive machine type of communication (mMTC), a long-range (LoRa) system or a vehicle-to-everything (V2X) system. It should be understood that the embodiments of the present application can also be adapted to systems conforming to IEEE 802.11 system standards, such as 802.11bf, 802.11a / b / g, 802.11n, 802.11ac, 802.11ax, or the next generation thereof, such as 802.11be, Wi-Fi 7 or EHT, or the next generation of standards, such as Wi-Fi 8, UHR, Wi-Fi AI, etc. 802.11 series of protocols for wireless local area network systems, or wireless personal area network systems based on ultra-wideband (UWB), etc., and can also be applied to wireless local area network (WLAN) scenarios. Or the embodiments of the present application can also be applied to Internet of Things (IoT) networks or vehicle-to-X (V2X) networks and other wireless local area network systems. The wireless communication system can include one or more network devices and one or more terminal devices.

[0065] The following exemplary explanation is given with reference to the system architecture shown in Figure 1 As shown in Figure 1 The communication system 1000 includes a radio access network (RAN) 100, a core network (CN) 200 and the Internet 300. The RAN 100 includes at least one network device (such as the network devices 110a and 110b in Figure 1 , collectively referred to as 110) and at least one terminal device (such as the terminal devices 120a and 120b in Figure 1RAN 100 can also include other RAN nodes not shown in FIG. 1 such as wireless relay devices and / or wireless backhaul devices (not shown in FIG. 1) etc. The terminal devices 120 are connected to the network devices 110 by means of wireless communication. The network devices 110 are connected to a core network 200 by means of wired or wireless communication. The network devices 110 in the RAN 100 and the core network devices in the core network 200 can be different physical devices, or can be the same physical devices with integrated core network logical functions and radio access network logical functions. Figure 1

[0066] It should be noted that the RAN 100 can be a 3rd generation partnership project (3GPP) related cellular system, e.g., a 4G, 5G mobile communication system, or an evolved system after 5G (e.g., a 6G mobile communication system). The RAN 100 can also be an open radio access network (O-RAN or ORAN), a cloud radio access network (CRAN) etc. The RAN 100 can also be a communication system in which two or more of the above systems are integrated. It should be noted that, Figure 1 The number of network devices and terminal devices in the RAN 100 is merely exemplary and should not be considered as a specific limitation to the present application. The terminal devices and network devices involved in the system architecture will be described in more detail below.

[0067] I. Terminal device

[0068] ​The terminal device can also be referred to as a user equipment (UE), a mobile station (MS), a mobile terminal (MT), or the like, or a device used to provide voice or data connectivity to a user, or an Internet of Things device. For example, the terminal device includes a handheld device having wireless connection function, a vehicle-mounted device, and the like. At present, the terminal device can be a mobile phone, a tablet computer, a notebook computer, a palm computer, a mobile Internet device (MID), a wearable device (for example, a smart watch, a smart bracelet, a pedometer, and the like), a vehicle-mounted device (for example, a car, a bicycle, an electric vehicle, an airplane, a ship, a train, a high-speed rail, and the like), a satellite terminal, a virtual reality (VR) device, an augmented reality (AR) device, a smart point of sale (POS) machine, a customer-premises equipment (CPE), a wireless terminal in industrial control, a smart home device (for example, a refrigerator, a television, an air conditioner, an electricity meter, and the like), a smart robot, a mechanical arm, a workshop device, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, or a wireless terminal in a smart home, a flight device (for example, a smart robot, a hot air balloon, a drone, an airplane), and the like. The terminal device can also be other devices having terminal functions, for example, the terminal device can also be a device assuming terminal functions in D2D communication.

[0069] Embodiments of the present application do not limit the device form of the terminal, and the device for realizing the function of the terminal device can be a terminal device, or can be a device capable of supporting the terminal device to realize the function, such as a chip system. The device can be installed in the terminal device or used in matching with the terminal device. In embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0070] II. Network device

[0071] The network device is a node in a radio access network (RAN), and can also be referred to as an access network device, and can also be referred to as a RAN node (or device). The network device is used to help the terminal device to realize wireless access. The plurality of network devices 110 in the communication system 1000 can be nodes of the same type, or can be nodes of different types. In some scenarios, the roles of the network device 110 and the terminal device 120 are relative, for example, Figure 1The network element 120i can be a helicopter or a drone, which can be configured as a mobile base station. For the terminal devices 120j that access the RAN 100 through the network element 120i, the network element 120i is a base station; but for the base station 110a, the network element 120i is a terminal device. The network device 110 and the terminal device 120 are sometimes referred to as communication devices, for example Figure 1 The network elements 110a and 110b may be understood as communication devices having base station functions, and the network elements 120a-120j may be understood as communication devices having terminal equipment functions.

[0072] In one possible scenario, the network equipment may be a base station, an evolved NodeB (eNodeB), a transmitting and receiving point (TRP), a transmitting point (TP), a next generation NodeB (gNB), a next generation base station in a sixth generation (6G) mobile communication system, a base station in a future mobile communication system, a satellite, an integrated access and backhaul (IAB) node, a mobile switching center, a network device in a non-terrestrial network (NTN) communication system, that is, a network device that can be deployed on a high altitude platform or a satellite, etc. The network equipment may be a macro base station (such as Figure 1 110a in), micro base stations or indoor stations (such as Figure 1 A network device may also be a base station in device-to-device (D2D) communication, vehicle-to-vehicle (V2I) communication, drone communication, or machine communication. Alternatively, the network device may be a server, wearable device, vehicle, or vehicle-mounted device. For example, a network device in vehicle-to-everything (V2X) technology may be a roadside unit (RSU).

[0073] All or part of the functions of the network device in this application may also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform). The network device in this application may also be a logical node, logical module, or software that can implement all or part of the network device functions.

[0074] In another possible scenario, a plurality of network devices cooperates to assist a terminal device to implement wireless access, and different network devices respectively implement part of functions of a base station. For example, a network device can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in a same network element, for example, a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, for example, included in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). It can be understood that the network device can be a CU node, or a DU node, or a device including the CU node and the DU node. In addition, the CU can be divided into a network device in a radio access network (RAN), or the CU can be divided into a network device in a core network (CN), which is not limited herein.

[0075] In different systems, the CU (or CU-CP and CU-UP), the DU, or the RU can also have different names, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, the CU-CP, the CU-UP, the DU, and the RU are taken as examples for description in the present application. Any one of the CU (or the CU-CP, the CU-UP), the DU, and the RU in the present application can be implemented by a software module, a hardware module, or a combination of the software module and the hardware module.

[0076] In the embodiments of the present application, the form of the network device is not limited, and the device for implementing the function of the network device can be the network device, or can be a device capable of supporting the network device to implement the function, for example, a chip system. The device can be installed in the network device or used in combination with the network device.

[0077] Further, please refer to Figure 2 , Figure 2 is a schematic diagram of a system architecture provided by the embodiments of the present application. As shown in Figure 2As shown, the system architecture can include a terminal device and a network device. Among them, the terminal device can include a baseband, a digital-to-analog conversion, a power amplifier, an antenna and an MPR control module. The terminal device can communicate with the network device through the antenna, for example, the terminal device can report the capability information to the network device, and the network device can configure or activate the terminal device to perform power overshoot. The terminal device can adjust the PA parameter through the MPR control module to realize power enhancement. In the embodiment of the present application, the MPR module can configure a set of PA parameters including output signal power, PA voltage and the like according to the RB allocation area scheduled by the network device, so as to control the PA output power to meet the uplink service demand.

[0078] In order to facilitate the understanding of the content of the present scheme, the following will explain the part of the language involved in the embodiments of the present application, so as to facilitate the understanding of the person skilled in the art, and this part can not be regarded as the specific limitation of the present application.

[0079] 1. Power amplifier and nonlinear characteristics

[0080] In a mobile communication network, the transmit power of a terminal device is a key factor to ensure the uplink performance of a cell. The uplink performance refers to the ability of the terminal device to send data to the network device, which will affect the quality and stability of the communication. If the transmit power of the terminal device is low, it may cause unstable data transmission, poor call quality or even connection interruption. Meanwhile, the transmit power of the terminal device also affects the network device deployment.

[0081] The maximum transmit power of the terminal device is mainly limited by the radio frequency front-end device—power amplifier (PA). The main function of the PA is to convert a low-power signal into a higher-power radio frequency signal, thereby reducing the signal attenuation between the transmitter and the receiver, and ensuring that the receiver can receive a strong enough signal. The core semiconductor device of the PA is a transistor, which has nonlinear characteristics. Specifically, the PA can be mathematically modeled as where x(t) and y(t) represent the time domain signals of the input and output of the PA respectively, n represents the model order, and a represents the corresponding coefficient of each order. Please refer to Figure 3 , Figure 3 is a schematic diagram of the amplitude curve of the input and output time domain signals provided by the embodiments of the present application. As shown in Figure 3As shown, it can be seen that due to the existence of high order, compression appears at high power, i.e. nonlinear effect. The phenomena such as harmonics and intermodulation distortion generated by the interaction of input signal and PA nonlinearity will cause signal quality degradation, and further affect the effective transmission and reception of information, and reduce the overall performance of the communication system. Secondly, due to the nonlinear effect, rich high-order harmonics and intermodulation products will be generated, which may fall into adjacent channels, thereby forming electromagnetic interference to the adjacent channel signals, and seriously affecting the effective use of spectrum resources.

[0082] Harmonic distortion refers to when an ideal pure sine wave signal passes through a PA, the output signal contains additional components of integer multiple frequencies of the base frequency in addition to the original frequency. These additional components are called harmonics. For example, if the input is a signal with a frequency of f0, higher order harmonics such as 2f0, 3f0, 4f0, etc. may occur. Intermodulation distortion occurs when multiple signals with different frequencies pass through the PA at the same time, and due to nonlinear effects, new frequency components appear, which are not any single frequency contained in the original signal, but the sum and difference frequencies between the original frequencies. For example, if the input signal has two frequencies f1 and f2, intermodulation distortion may produce intermodulation products such as 2f1-f2, 2f2-f1, etc.

[0083] 2. Power limited index

[0084] In order to ensure the in-band signal quality and suppress the out-of-band interference, 3GPP radio frequency protocol defines multiple RF indexes to regulate the terminal equipment implementation, such as EVM, IBE, ACLR, SEM and spurious, etc. Please refer to Figure 4 , Figure 4 is a schematic diagram of the frequency domain position corresponding to each RF index provided by an embodiment of the present application. As Figure 4EVM is a quantitative parameter used to evaluate the difference between the actual received modulated signal and the ideal modulated signal. Specifically, in digital modulation communication, such as quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), and other modulation modes, each data symbol corresponds to a point on a constellation diagram. The error vector refers to the vector difference between the actual received signal and the ideal position at a certain sampling time. This vector difference includes amplitude and phase errors; when the terminal device transmits a signal, it should only send valid modulated signals within the specified frequency range, but in actual operation, due to PA nonlinearity and other reasons, it may also produce transmission in other areas outside the valid signal. This part is IBE. IBE must be kept within certain specification limits to prevent interference with other users within the user equipment channel bandwidth (UE CHBW) of the same user equipment, while ensuring that the terminal device can correctly and efficiently communicate within the allocated frequency spectrum resources; ACLR refers to the ratio of the average leakage power of the adjacent channel outside the UE CHBW to the transmission power on the UE CHBW, and SEM refers to the maximum leakage power value allowed in the adjacent channel outside the UE CHBW. Both ACLR and SEM are to ensure that the transmitter will not cause excessive interference to other adjacent channels when working. The difference between the two is that ACLR measures the average power of the adjacent channel, while SEM measures the absolute power of the adjacent channel. The spurious index represents the radiation index outside the UE CHBW to measure the interference of the frequency point farther away from the UE CHBW.

[0085] Since higher transmission power means more serious nonlinearity of the PA, as the transmission power of the terminal device increases, one of the above RF indicators will inevitably become the primary limiting factor. Please refer to Figure 5 , Figure 5 is a schematic diagram of the primary limited RF indicator corresponding to the QPSK modulation mode of the CP-OFDM waveform provided by an embodiment of the present application. As Figure 5 shown, under a 50MHz bandwidth, the abscissa is the starting position of the RB within the UE CHBW, and the ordinate is the number of RBs within the UE CHBW, that is, each two-dimensional coordinate in the figure corresponds to an RB allocation area containing the starting position of the RB and the number of RBs. From the figure, it can be seen that different RB allocation areas correspond to different primary limited RF indicators.

[0086] 3. Power parameters

[0087] According to different terminal device types and frequency band restrictions and other factors, the protocol TR38.101-1 defines four power levels (PC), namely PC1 (31 dBm), PC1.5 (29 dBm), PC2 (26 dBm) and PC3 (23 dBm). The maximum transmit power of the terminal device is P CMAX_f,c As follows:

[0088] P CMAX_L,f,c ≤ P CMAX_f,c ≤ P CMAX_H,f,c

[0089]

[0090]

[0091] Wherein, P CMAX_L,f,c and P CMAX_H,f,c respectively represent the upper and lower limits of P CMAX_f,c , P EMAC,c represents the maximum transmit power of the network device configured for the terminal device, P PowerClass represents the PC capability reported by the terminal device to the network device, ΔP PowerClass represents the allowed power increase when allocating an internal RB region, ΔP PowerClass allows the terminal device to reduce PC in some cases, for example, from PC2 to PC3, MPR, ΔMPR, A-MPR (additional maximum power backoff) and P-MPR represent the corresponding power backoff in different cases. These backoff parameters take into account that the PA nonlinearity is very serious under high power, and cannot meet the defined RF indicators, wherein the MPR can be related to different RB allocation regions, different modulation methods and different waveforms, etc. Wherein, the MPR specified by the protocol can be as shown in Table 1 (Table 1 takes the MPR of PC3 as an example for illustration). ΔMPR considers further backoff due to excessive operating bandwidth. Since the radiation index of some sensitive areas is set very small, A-MPR allows additional power backoff. Human body radiation is the regulation of each region, and P-MPR is the power backoff to ensure that the human body radiation index does not exceed the standard.

[0092] Table 1 MPR of PC3

[0093]

[0094]

[0095] As Figure 5As shown, one of the factors affecting MPR is the RB allocation region, which can be specifically divided into edge RB allocation region, external RB allocation region and internal RB allocation region according to the protocol. If the number of RBs is less than or equal to 2 RBs and the RB start position is located on the upper and lower edges of the UE CHBW, it is an edge RB allocation region. The RB start position and the number of RBs in the internal RB allocation region need to meet the following conditions:

[0096] RB Start,Low ≤RB Start ≤RB Start,High

[0097] L CRB ≤ceil(N RB / 2)

[0098] Where RB Start represents the RB start position, L CRB represents the number of RBs, RB Start,Low = max (1, floor (L CRB / 2)), RB Start,High = N RB -RB Start,Low -L CRB . N RB represents the maximum number of RBs of the UE CHBW, ceil represents the minimum integer greater than or equal to N RB / 2. If it does not belong to the internal RB allocation region and the edge RB allocation region, it is an external RB allocation region.

[0099] Generally, the definition of MPR has the following basic rules: the MPR of the low-order modulation mode is less than or equal to the MPR of the high-order modulation mode, the MPR of the internal RB allocation region is less than or equal to the MPR of the external RB allocation region, and the MPR of the external RB allocation region is less than or equal to the MPR of the edge RB allocation region. According to Figure 5 It can also be seen that the external RB allocation region is mainly limited by ALCR, but still has a part limited by SEM; while the internal RB allocation region is mainly limited by IBE.

[0100] First, in order to facilitate the understanding of the embodiments of the present application, the technical problems to be solved by the embodiments of the present application are further analyzed and proposed.

[0101] At present, the implementation of the transmit power enhancement of the terminal device includes various technical solutions, the following two kinds are exemplarily listed as follows:

[0102] Scheme one: technical solution of power enhancement in internal RB allocation region

[0103] In 3GPP R18, as introduced in the power parameter of the above technical terms, the maximum transmit power PCMAX_f,c A new parameter ΔP is introduced in the middle PowerBoost , the terminal device can report the terminal device capability to indicate that the power is boosted in the inner RB allocation region for DFT-S-OFDM waveform, when P PowerClass is PC2, ΔP PowerBoost is equal to 0.5dB, when P PowerClass is PC3, ΔP PowerBoost is equal to 1dB. The protocol also defines the enhanced inner RB allocation region, in which the RB start position and the RB number need to satisfy the following conditions:

[0104] RB Start,Low +P1≤RB Start ≤RB Start,High -P1

[0105] wherein P1 = [min{12, ceil(2+N RB / 25)}], N RB represents the maximum RB number of the channel bandwidth of the terminal device, and ceil is the minimum integer greater than or equal to N RB / 2. Please refer to Figure 6 , Figure 6 is a different RB allocation region map provided by an embodiment of the present application. As shown in Figure 6 , the RB number of the DFT-S-OFDM waveform needs to satisfy the multiple of 2, 3 or 5.

[0106] The specific interaction process between the terminal device and the network device can be: if the terminal device reports the capability [powerBoostRel18], it indicates that the terminal device can boost the power by reducing the implementation margin: in the enhanced inner RB allocation region, the power is increased by ΔP PowerBoost , and the MPR is 0dB; in the inner RB allocation region but not in the enhanced inner RB allocation region, the power is increased by ΔP PowerBoost , and the MPR is equal to the value of ΔP PowerBoost , that is, the power can be increased and the power can also be reduced. If the terminal device reports the capability [powerBoostTSRel18], it indicates that the terminal device can boost the power by reducing the nonlinearity of the PA by some method: in the inner RB allocation region, the power is increased by ΔP PowerBoost , and the MPR is 0dB. The network device can configure the radio resource control (RRC) signaling to indicate the terminal device that the power increase is enabled, and the ΔP PowerBoost parameter.

[0107] The disadvantages of the scheme one are: 1. limited application scope: only for the inner RB allocation area of the DFT-S-OFDM waveform, and unable to support power-limited cell edges or multi-RB demand services; 2. the power enhancement method of the scheme one is to reduce the implementation margin, which causes certain pressure on the margin.

[0108] Scheme two: technical scheme of defining the ACLR index

[0109] Please refer to Figure 7 , Figure 7 is a schematic diagram of an ACLR index provided by an embodiment of the present application. As shown in Figure 7 , it can be seen that the ACLR index defines a relative value, and the interference level is different due to different reference powers PC, such as for PC1.5 = 29dBm, the ACLR is -2dBm, for PC2 = 26dBm, the ACLR is -5dBm, and for PC3 = 23dBm, the ACLR is -7dBm.

[0110] The disadvantages of the scheme two are: since the ACLR is an RF index for quantifying the adjacent channel interference level, the interference level should not increase with the increase of the transmission power, and therefore the index definition is unreasonable.

[0111] The above technical defects mainly include the following aspects:

[0112] 1. how to implement power enhancement in the outer RB allocation area.

[0113] 2. how to implement power enhancement under the premise of margin-friendliness of the terminal device.

[0114] 3. how to define the ACLR index more reasonably.

[0115] Therefore, the technical problems to be solved by the present application can include the following:

[0116] 1. defining a new RF (such as the ACLR index) index and a specific RB allocation area (enhancing the outer RB allocation area); 2. introducing a new terminal device capability indication that the terminal device can perform power enhancement in the specific RB allocation area under the first condition; 3. the network device configures or activates the terminal device to perform power enhancement in the specific RB allocation area under the first condition according to different application scenarios.

[0117] The application provides a communication method. A terminal device can report new capability information, which is used to indicate that the terminal device can perform transmission power boost on a specific RB allocation region under a condition that a first RF indicator is not required to be met or only a second RF indicator is required to be met. The terminal device can perform transmission power boost on the specific RB allocation region in combination with the RF indicator, so that power-limited cell edges or multi-RB demand services can be supported, and the reliability of transmission power boost of the terminal device is further improved. The following embodiments will be described respectively. In the embodiments of the application, the terms and / or descriptions of different embodiments are consistent and can be mutually referred to if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0118] The communication method provided by the embodiments of the application is described below. It can be understood that the network device and the terminal device are taken as an example to illustrate the execution subject of the interaction in the application, but the application is not limited to the execution subject of the interaction. For example, the method performed by the network device in the application can also be performed by a module (such as a chip, a chip system or a processor) applied to the network device, and can also be implemented by a logic node, a logic module or software capable of realizing all or part of the functions of the network device; the method performed by the terminal device in the application can also be performed by a module (such as a chip, a chip system or a processor) applied to the terminal device, and can also be implemented by a logic node, a logic module or software capable of realizing all or part of the functions of the terminal device.

[0119] Please refer to Figure 8 , Figure 8 is an interaction diagram of a communication method provided by the embodiments of the application. As Figure 8 indicated, the communication method can include at least the following steps.

[0120] S801: The terminal device sends capability information of the terminal device to the network device, and the capability information is used to indicate that the terminal device can perform transmission power boost on a specific RB allocation region under a first condition. Correspondingly, the network device receives the capability information from the terminal device.

[0121] The terminal device can report capability information to the network device, and the capability information is used to indicate that the terminal device can perform transmission power boost on a specific RB allocation region under a first condition.

[0122] The first condition can comprise that the terminal device does not need to satisfy the first RF indicator or the terminal device only needs to satisfy the second RF indicator, and the second RF indicator is a relaxed first RF indicator.

[0123] It can be understood that the value of the first RF indicator can be a value of an RF indicator defined in an existing protocol, the value of the second RF indicator can be a value of a redefined RF indicator different from the RF indicator defined in the existing protocol, or the value of the second RF indicator can be a value of a new RF indicator modified from the value of the RF indicator defined in the existing protocol. The RF indicator can comprise one or more of ACLR, SEM, IBE, EVM, and spurs. Since the primary limited RF indicator for the external RB allocation area is ACLR, in one possible implementation, the RF indicator can be ACLR. The first RF indicator (corresponding to the first ACLR) and the second RF indicator (corresponding to the second ACLR) are exemplarily described below with the RF indicator being ACLR as an example.

[0124] For example, Table 2 shows values of the ACLR indicator defined in the existing protocol (i.e., the first ACLR).

[0125] Table 2: First ACLR indicator requirement

[0126]

[0127] As shown in Table 2, the value of the ACLR indicator corresponding to PC1 is 37 dB, the value of the ACLR indicator corresponding to PC1.5 is 31 dB, the value of the ACLR indicator corresponding to PC2 is 31 dB, and the value of the ACLR indicator corresponding to PC3 is 30 dB.

[0128] The implementation of the value of the second ACLR can be that a new value of the ACLR indicator is obtained by modifying the value of the first ACLR indicator. For example, the value of the first ACLR indicator can be reduced by a certain value to obtain the value of the new ACLR indicator, and Table 3 shows the values of the second ACLR indicator.

[0129] Table 3: Second ACLR indicator requirement

[0130]

[0131] As shown in Table 3, the value of the ACLR indicator corresponding to PC1 is 36 dB, the value of the ACLR indicator corresponding to PC1.5 is 28 dB, the value of the ACLR indicator corresponding to PC2 is 25 dB, and the value of the ACLR indicator corresponding to PC3 is 22 dB. Compared with Table 2, for different PCs, the value of the second ACLR indicator can be obtained by reducing the value of the first ACLR indicator by 1, 3, 6, and 8, respectively.

[0132] Alternatively, the implementation of the value of the second ACLR can be to redefine the value of the ACLR index different from the first ACLR index. The existing definition of the ACLR is the ratio between the transmit power on the UE CHBW and the average leakage power generated by the adjacent channel outside the UE CHBW, which is a relative value, and is an RF index for quantifying the adjacent channel interference level, which should not increase with the increase of the transmit power. Therefore, it can be redefined that: for different PC, the value of the unified ACLR index can be defined, so that the redefined ACLR is an absolute value and does not increase with the increase of the transmit power, so it is more reasonable.

[0133] The second RF index is the relaxed first RF index. It can be understood that the RF index can include one or more of the following: ACLR, SEM, IBE, EVM, and spurious. For the ACLR, the value of the second ACLR index can be the value of the first ACLR index minus a positive number, so that the value of the second ACLR index is lower than the value of the first ACLR index, indicating that the second ACLR index is the relaxed first ACLR index; for the SEM, the value of the second SEM index can be the value of the first SEM index plus a positive number, so that the value of the second SEM index is higher than the value of the first SEM index, indicating that the second SEM index is the relaxed first SEM index; for the IBE, the value of the second IBE index can be the value of the first IBE index plus a positive number, so that the value of the second IBE index is higher than the value of the first IBE index, indicating that the second IBE index is the relaxed first IBE index; for the EVM, the value of the second EVM index can be the value of the first EVM index plus a positive number, so that the value of the second EVM index is higher than the value of the first EVM index, indicating that the second EVM index is the relaxed first EVM index; for the spurious, the value of the second spurious index can be the value of the first spurious index plus a positive number, so that the value of the second spurious index is higher than the value of the first spurious index, indicating that the second spurious index is the relaxed first spurious index. That is, the second RF index is the relaxed first RF index, which can be understood as that, compared with the first RF index, the second RF index has lower ACLR, higher IBE, SEM and spurious.

[0134] The specific RB allocation region can also be referred to as an enhanced outer RB allocation region. In the embodiments of the present application, the specific RB allocation region can be determined by the RB start position and the number of RBs. In one possible implementation, the RB start position of the specific RB allocation region is RB Start The following conditions are met:

[0135] RB Start <RB Start,Low +P2 or RB Start >RB Start,High +P3

[0136] wherein, RB Start,Low = max(1, floor(L CRB / 2)), RB Start,High = N RB - RB Start,Low - L CRB , L CRB < ceil(N RB / 2), P2, P3 are related to N RB , N RB represents the maximum number of RBs of the channel bandwidth of the terminal device, and ceil is the minimum integer greater than or equal to N RB / 2. P2, P3 are related to N RB , for example, P2 = ceil(N RB / 5) or P2 = ceil(N RB / 4), and P3 can be the same as P2 or different from P2, for example, P3 = ceil(N RB / 5) or P3 = ceil(N RB / 4). It should be noted that, for P2 and P3 in the above formula, other parameters such as P4, P5 or M1, M2, etc. can be used instead, which are not enumerated one by one and do not constitute a limitation on the scope of protection of the embodiments of the present application. For the values of P2 and P3 in the above formula, the embodiments of the present application are only exemplified as ceil(N RB / 5) or ceil(N RB / 4), and it can be understood that other parameters such as ceil(N RB / 3) or ceil(N RB / 6) or others can also be used, which are not enumerated one by one and also do not constitute a limitation on the scope of protection of the embodiments of the present application.

[0137] S802: The terminal device performs transmit power enhancement in the specific RB allocation region under the first condition.

[0138] Further, the network device can send third indication information to the terminal device, the third indication information being used for indicating the frequency domain resource of the terminal device uplink transmission, the frequency domain resource of the terminal device uplink transmission including the RB start position of the terminal device uplink transmission and the number of RBs of the terminal device uplink transmission. The third indication information can be carried in an IE, RRC or MAC CE, and the third indication information and the first indication information described above can be carried in the same IE, RRC or MAC CE, or can be carried in different IEs, RRCs or MAC CEs, and the embodiments of the present application do not limit this.

[0139] For the terminal device to perform the transmission power enhancement in the specific RB allocation region under the first condition, specifically:

[0140] In a first possible implementation, the terminal device can perform the enhancement by itself, i.e., after reporting the capability information in the step S801, the terminal device can determine to perform the transmission power enhancement in the specific RB allocation region under the first condition by itself. After receiving the capability information of the terminal device, the network device can also know that the terminal device performs the transmission power enhancement in the specific RB allocation region under the first condition. Further, after receiving the third indication information from the network device, the terminal device can determine whether the frequency domain resource of the uplink transmission of the terminal device from the network device is in the specific RB allocation region according to the specific RB allocation region, and if yes, it can be determined to perform the transmission power enhancement in the specific RB allocation region under the first condition; if not, it cannot perform the transmission power enhancement in the specific RB allocation region under the first condition.

[0141] In a second possible implementation, the network device can configure / activate the terminal device to perform the transmission power enhancement in the specific RB allocation region under the first condition through the indication information. For example, the network device can send the first indication information to the terminal device, the first indication information being used to indicate the terminal device to perform the transmission power enhancement in the specific RB allocation region under the first condition, and the terminal device can perform the transmission power enhancement in the specific RB allocation region under the first condition according to the first indication information. Further, after receiving the third indication information from the network device, the terminal device can determine whether the frequency domain resource of the uplink transmission of the terminal device from the network device is in the specific RB allocation region according to the first indication information and the specific RB allocation region, and if yes, it can be determined to perform the transmission power enhancement in the specific RB allocation region under the first condition; if not, it cannot perform the transmission power enhancement in the specific RB allocation region under the first condition.

[0142] For the second possible implementation method mentioned above, further, the network device can determine the value corresponding to the first indication information according to different application scenarios. For example, if there are no adjacent channels around the channel bandwidth of the terminal device or if there are adjacent channels around the channel bandwidth of the terminal device but they belong to the same application server (since the adjacent channels belong to the same application server, the interference effect of the adjacent channels can be eliminated through certain methods or scheduling processing), then the first indication information can correspond to a first value, which is used to indicate that within a specific RB allocation area, the terminal device does not need to meet the first RF indicator and perform transmission power enhancement at the same time. For another example, if there are adjacent channels around the channel bandwidth of the terminal device but they belong to different application servers (since the adjacent channels belong to different application servers, the interference effect of the adjacent channels cannot be eliminated, and the interference level can be guaranteed to be within a reasonable range), then the first indication information can correspond to a second value, which is used to indicate that within a specific RB allocation area, the terminal device only needs to meet the second RF indicator and perform transmission power enhancement at the same time. In this possible implementation method, the network device indicates different first conditions to the terminal device according to different application scenarios, so that different power benefits can be obtained in different scenarios.

[0143] The first indication information may be carried in an IE, RRC, or MAC CE. For example, if IE=1, it may indicate that if the uplink transmission frequency domain resources of the terminal device are within a specific RB allocation area, the terminal device does not need to meet the first RF indicator and perform transmission power enhancement at the same time; for example, if IE=2, it may indicate that if the uplink transmission frequency domain resources of the terminal device are within a specific RB allocation area, the terminal device only needs to meet the second RF indicator and perform transmission power enhancement at the same time.

[0144] Furthermore, different values ​​corresponding to IE may also correspond to different P2 and P3. For example, IE=0 may represent P2=ceil(N RB / 5), P3=ceil(N RB / 5), such as IE=1, P2=ceil(N RB / 4) and P3=ceil(N RB / 4), such as IE=2, P2=ceil(N RB / 5), P3=ceil(N RB / 4), IE=3, P2=ceil(N RB / 4), P3=ceil(N RB / 5). Different waveforms and modulation methods can be identified by the name of the IE. For example, if the IE is [powerboostCPOFDMQPSK] and is set to 1, it means that for CPOFDMQPSK, the terminal device can RB / 4) and P3=ceil(NRB / 4) determines the specific RB allocation region.

[0145] If the first condition includes that the terminal device does not need to meet the first RF indicator, the network device can indicate the terminal device, through the first indication information (such as IE = 0), that the terminal device does not need to meet the first RF indicator and performs the transmission power enhancement in the specific RB allocation region. For different waveforms and different modulation modes, the IE name can be determined. For example, the IE is [powerboostCP OFDM QPSK], which is set to 1, and can represent that for CP-OFDM QPSK, the terminal device does not need to meet the first RF indicator and performs the transmission power enhancement in the specific RB allocation region.

[0146] If the first condition includes that the terminal device only needs to meet the second RF indicator, different values of the IE can also correspond to different second RF indicators, so that the terminal device can determine the second RF indicator according to the value of the IE, and realize that the terminal device only needs to meet the second RF indicator and performs the transmission power enhancement in the specific RB allocation region. For example, IE = 0 can represent that the second RF indicator such as ACLR is 22 dB, IE = 1 can represent that the second RF indicator such as ACLR is 24 dB, IE = 2 can represent that the second RF indicator such as ACLR is 26 dB, and IE = 3 can represent that the second RF indicator such as ACLR is 28 dB. For different waveforms and different modulation modes, the IE name can be determined. For example, the IE is [powerboostCP OFDM QPSK], which is set to 1, and can represent that for CP-OFDM QPSK, the terminal device only needs to meet the second RF indicator (such as ACLR is 24 dB) and performs the transmission power enhancement in the specific RB allocation region.

[0147] Further, different specific RB allocation regions can correspond to different second RF indicators. Please refer to Figure 9 , Figure 9 is a schematic diagram of an RB allocation region provided by an embodiment of the present application. As shown in Figure 9 , the RB allocation regions of CP-OFDM QPSK and DFT-s-OFDM QPSK are respectively represented. For example, for the RB allocation region of CP-OFDM QPSK / 16QAM: such as IE = 0, P2 = ceil(N RB / 5), P3 = ceil(N RB / 5), the specific RB allocation region determined by P2 and P3 corresponds to the second RF indicator such as ACLR is 22 dB; such as IE = 1, P2 = ceil(N RB / 4) and P3 = ceil(N RB / 4), the second RF indicator corresponding to the specific RB allocation region determined by P2 and P3 is, for example, ACLR of 26 dB; for example, IE = 3, P2 = ceil(N RB / 4), P3 = ceil(N RB / 4), the second RF indicator corresponding to the specific RB allocation region determined by P2 and P3 is, for example, ACLR of 26 dB; for example, IE = 3, P2 = ceil(N RB / 4), P3 = ceil(N RB / 4), the second RF indicator corresponding to the specific RB allocation region determined by P2 and P3 is, for example, ACLR of 28 dB; for example, for the RB allocation region of DFT-s-OFDM QPSK / 16QAM: for example, IE = 0, P2 = ceil(N RB / 5), P3 = ceil(N RB / 5), the second RF indicator corresponding to the specific RB allocation region determined by P2 and P3 is, for example, ACLR of 22 dB; for example, IE = 1, P2 = ceil(N RB / 4), and P3 = ceil(N RB / 4), the second RF indicator corresponding to the specific RB allocation region determined by P2 and P3 is, for example, ACLR of 24 dB; for example, IE = 2, P2 = ceil(N RB / 5), P3 = ceil(N RB / 4), the second RF indicator corresponding to the specific RB allocation region determined by P2 and P3 is, for example, ACLR of 26 dB; for example, IE = 3, P2 = ceil(N RB / 4), P3 = ceil(N RB / 5), the second RF indicator corresponding to the specific RB allocation region determined by P2 and P3 is, for example, ACLR of 28 dB. It can be seen that, due to the difference of P2 and P3, the specific RB allocation region determined according to P2 and P3 is also different, and therefore different RB allocation regions can correspond to different values of the second RF indicator.

[0148] It should be noted that, for the RB allocation region of CP-OFDM QPSK / 16QAM and for the RB allocation region of DFT-s-OFDM QPSK / 16QAM, the terminal device can distinguish different waveforms and modulation modes through the different names of the IE, for example, IE = [powerboostCP0FDMQPSK], which is set to 2, can represent that for CP-OFDM QPSK, P2 = ceil(N RB / 5), P3 = ceil(N RB / 5), the terminal device only needs to meet the second RF indicator (such as ACLR is 26dB) on the specific RB allocation area, while performing the transmission power enhancement; for example, the IE is [powerboostDFTSOFDMQPSK] and is set to 2, which can represent that for DFT-s-OFDM QPSK, P2 = ceil(N RB / 5), P3 = ceil(N RB / 5), the terminal device only needs to meet the second RF indicator (such as ACLR is 226B) on the specific RB allocation area, while performing the transmission power enhancement.

[0149] For the first possible implementation and the second possible implementation, further optionally, the network device can further configure / deactivate the terminal device through the indication information. For example, the network device sends second indication information to the terminal device, and the second indication information is used to indicate that the terminal device needs to meet the first RF indicator on the specific RB allocation area while not performing the transmission power enhancement. For example, the second indication information can correspond to a third value (such as IE = 0), which is used to indicate that the terminal device needs to meet the first RF indicator on the specific RB allocation area while not performing the transmission power enhancement.

[0150] It should be noted that the second indication information can be carried in the IE, RRC or MAC CE.

[0151] The transmission power enhancement can be understood as that the MPR of the terminal device is reduced by a first value or the transmission power of the terminal device is increased by a first parameter.

[0152] In the first possible implementation, the terminal device can achieve the transmission power enhancement by reducing the MPR. For example, it is assumed that the maximum transmission power P CMAX,f,c satisfies:

[0153] P CMAX_L,f,c ≤ P CMAX,f,c ≤ P CMAX_H,f,c

[0154]

[0155]

[0156] wherein P CMAX_L,f,c and P CMAX_H,f,c respectively represent the upper and lower limits of P CMAX_f,c , P EMAX,c represents the maximum transmission power configured by the network device to the terminal device, P PowerClass represents the PC capability reported by the terminal device to the network device, ΔP PowerClass1 represents the allowed power increase for the specific RB allocation area, and ΔPPowerClass MPR, ΔMPR, A-MPR (additional maximum power reduction) and P-MPR represent corresponding power reductions in different cases, which take into account that the PA nonlinearity is very serious under high power, and the first RF indicator or the second RF indicator cannot be met, where the MPR can be related to different RB allocation areas, different modulation modes and different waveforms, etc. ΔMPR considers further reduction allowed due to too large operating bandwidth. A-MPR allows additional power reduction due to small radiation index settings in some sensitive areas. Human body radiation is a regulation in each area, and p-MPR can be a power reduction to ensure that the human body radiation index does not exceed the standard.

[0157] The MPR in the embodiment of the present application can be reduced by a first value, and the first value corresponding to different specific RB allocation areas, different modulation modes and different waveforms can be the same or different. The modulation mode can include binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), 16-ary quadrature amplitude modulation (16QAM), 64-ary quadrature amplitude modulation (64QAM), 256-ary quadrature amplitude modulation (256QAM), etc. The waveform can include DFT-s-OFDM waveform and CP-OFDM waveform, etc. The implementation of the MPR reduced by the first value in the embodiment of the present application can be based on the MPR of the existing protocol, and a new note can be added, or a new corresponding value can be added.

[0158] For example, Table 4 takes the MPR of PC3 as an example to add a new note.

[0159] Table 4 MPR of PC3

[0160]

[0161] For example, Table 5 takes the MPR of PC3 as an example to add a new note.

[0162] Table 5 MPR of PC3

[0163]

[0164] As shown in Table 5, for a specific RB allocation region, the MPR can be the MPR defined in the existing protocol reduced by a first value. For example, compared with an outer RB allocation region, for a DFT-s-OFDM waveform, a modulation mode of Pi / 2 BPSK, the MPR of the specific RB allocation region can be the value of the MPR corresponding to the outer RB allocation region reduced by 1, i.e., ≤ 0.2; for a DFT-s-OFDM waveform, a modulation mode of Pi / 2 BPSK w Pi / 2 BPSK DMRS, the MPR of the specific RB allocation region can be the value of the MPR corresponding to the outer RB allocation region reduced by 0.5 (the first value corresponding to different modulation modes is different), i.e., 0; for a DFT-s-OFDM waveform, a modulation mode of QPSK and 16QAM, the MPR of the specific RB allocation region can be the value of the MPR corresponding to the outer RB allocation region reduced by 1 (the first value corresponding to different modulation modes is the same), i.e., 0 and 1 respectively; for a DFT-s-OFDM waveform, a modulation mode of 64QAM and 256QAM, the MPR of the specific RB allocation region can be the value of the MPR corresponding to the outer RB allocation region reduced by 0, i.e., 2.5 and 4.5 respectively; for a CP-OFDM waveform, a modulation mode of QPSK, the MPR of the specific RB allocation region can be the value of the MPR corresponding to the outer RB allocation region reduced by 1.5 (the first value corresponding to different waveforms is different), i.e., 1.5; for a CP-OFDM waveform, a modulation mode of 16QAM, the MPR of the specific RB allocation region can be the value of the MPR corresponding to the outer RB allocation region reduced by 1, i.e., 2; for a CP-OFDM waveform, a modulation mode of 64QAM and 256QAM, the MPR of the specific RB allocation region can be the value of the MPR corresponding to the outer RB allocation region reduced by 0 (the first value corresponding to different waveforms is the same), i.e., 3.5 and 6.5 respectively. It can be understood that the specific RB allocation region corresponding MPR value in Table 2 is only an example, and other values can also be used, which does not constitute a limitation on the scope of protection of the embodiments of the present application.

[0165] In a second possible implementation, the terminal device can implement the transmission power enhancement by increasing the transmission power by a first parameter. As described above, the maximum transmission power P CMAX,f,c of the terminal device satisfies the formula: P PowerClass1Further, the first parameters corresponding to different specific RB allocation regions, different modulation modes and different waveforms can be the same or different. For example, the first parameters corresponding to DFT-s-OFDM waveform and CP-OFDM waveform are different, or the first parameters corresponding to different modulation modes are different. Further, optionally, if the terminal device can increase the first parameter by the transmission power to implement the transmission power enhancement, for the RB allocation region belonging to the external RB allocation region but not in the specific RB allocation region, the MPR can be increased by ΔP PowerClass1 value, and if there is A-MPR, the ΔP PowerClass1 value can also be increased. This is because the terminal device increases the first parameter by the transmission power to implement the transmission power enhancement, and the transmission power corresponding to all RB allocation regions is increased by the first parameter, and for the RB allocation region belonging to the external RB allocation region but not in the specific RB allocation region, the transmission power is increased by the first parameter, and the MPR is also increased by the first parameter to eliminate the influence of the transmission power increased by the first parameter, that is, for the RB allocation region belonging to the external RB allocation region but not in the specific RB allocation region, the MPR is also increased by the first parameter to eliminate the influence of the transmission power increased by the first parameter in the specific RB allocation region to implement the transmission power enhancement.

[0166] In combination with the above description, the possible implementation of the terminal device in the specific RB allocation region under the first condition to implement the transmission power enhancement can be as follows:

[0167] In a possible implementation, for the first condition including that the terminal device does not need to meet the first RF index, the network device indicates the IE[powerboostCPOFDMQPSK] to the terminal device, which is set to 1, and the terminal device can determine the waveform as CP-OFDM and the modulation mode as QPSK according to the name of the IE. According to the IE=1, the specific RB allocation region can be determined according to P2=ceil(N RB / 4) and P3=ceil(N RB / 4) and the frequency domain resource (including RB start position and RB number) of the uplink transmission indicated by the network device, and then it is determined that the terminal device does not need to meet the first RF index while implementing the transmission power enhancement in the specific RB allocation region, and the transmission power enhancement can correspond to that the MPR index can be reduced by 1dB or the power is increased by ΔP PowerClass1 .

[0168] In a possible implementation, for the first condition including that the terminal device only needs to satisfy the second RF indicator, the network device indicates the terminal device with the IE [powerboostDFTSOFDM16QAM] set as 2, and the terminal device can determine, according to the name of the IE, that the waveform is DFT-s-OFDM and the modulation mode is 16QAM, and according to the IE = 2, the terminal device can determine the specific RB allocation region according to P2 = ceil(N RB / 5) and P3 = ceil(N RB / 4) and the frequency domain resource of the uplink transmission indicated by the network device, and then determine that the terminal device only needs to satisfy the second RF indicator (such as ACLR being 26 dB) while performing the transmission power boosting in the specific RB allocation region. The transmission power boosting can correspond to the MPR indicator being reduced by 0.5B or the power increase ΔP PowerClass1 .

[0169] It should be noted that part or all of the terminal devices in the cell can be allowed to perform the transmission power boosting in the specific RB allocation region under the first condition. Please refer to Figure 10 and Figure 11 , Figure 10 and Figure 11 are a scenario diagram provided by the embodiments of the present application. As shown in Figure 10 , the scheduling strategy of the network device can be that all the terminal devices with the above-mentioned capability in the cell can perform the transmission power boosting in the specific RB allocation region under the first condition. As shown in Figure 11 , the scheduling strategy of the network device can be that part of the terminal devices with the above-mentioned capability in the cell can perform the transmission power boosting in the specific RB allocation region under the first condition. For this implementation, the scheduling strategy of the network device can be more flexible.

[0170] It can be understood that the various numbers involved in the embodiments of the present application are only used for differentiation for convenience of description, and do not limit the scope of the embodiments of the present application. The size of the serial number of the above-mentioned processes does not mean the execution order, and the execution order of the processes should be determined according to the function and the inherent logic.

[0171] In the embodiments of the present application, the terminal device can perform transmit power enhancement on the specific RB allocation region under the first condition, and the first condition includes that the first RF indicator does not need to be met or only the second RF indicator needs to be met. That is, on the specific RB allocation region, the terminal device can perform transmit power enhancement under the condition that the RF indicator is relaxed to different degrees. Through the relaxation of the RF indicator, the terminal device can perform transmit power enhancement only by judging the specific RB allocation region and adjusting the corresponding PA parameter (such as not needing to meet the first RF indicator or only needing to meet the second RF indicator) without changing the hardware and software, so that the reliability of the transmit power enhancement of the terminal device can be improved.

[0172] Please refer to Figure 12 , Figure 12 is a schematic diagram of power gain of a terminal device performing transmit power enhancement on a specific RB allocation region under a first condition provided by the embodiments of the present application. As shown in Figure 12 , taking the ACLR indicator as an example, for CP-OFDM QPSK with 6dB ACLR relaxation, 95% of the cumulative distribution function (CDF) can achieve 1dB of power enhancement in the specific RB allocation region, and for the terminal device at the cell edge, 1dB of power enhancement can bring 10%-30% of uplink throughput gain. Similarly, for DFT-s-OFDM QPSK with 5dB ACLR relaxation, 85% of the CDF can achieve 0.8dB of power enhancement in the specific RB allocation region.

[0173] In combination with the method embodiments shown in Figure 8 , for the first possible implementation of the terminal device performing transmit power enhancement in the specific RB allocation region under the first condition, please refer to Figure 13 , Figure 13 is an interaction schematic diagram of another communication method provided by the embodiments of the present application. As shown in Figure 13 , the communication method can include at least the following steps.

[0174] S1301: The terminal device sends the capability information of the terminal device to the network device, and the capability information is used to indicate that the terminal device can perform transmit power enhancement on the specific RB allocation region under the first condition. Correspondingly, the network device receives the capability information from the terminal device.

[0175] It can be understood that the step S1301 corresponds to the step S801, and the specific description can be referred to the above S801, which will not be described here again.

[0176] S1302: The network device sends third indication information to the terminal device, and the third indication information is used to indicate the frequency domain resource of the terminal device uplink transmission. Correspondingly, the terminal device receives the third indication information from the network device.

[0177] The frequency domain resource of the terminal device uplink transmission includes the RB starting position of the terminal device uplink transmission and the number of RBs of the terminal device uplink transmission. The third indication information can be carried in an IE, RRC or MAC CE.

[0178] S1303: The terminal device determines whether the frequency domain resource of the terminal device uplink transmission is in a specific RB allocation area. If yes, step S1304 is performed.

[0179] After the terminal device receives the third indication information from the network device, the terminal device can determine whether the frequency domain resource of the terminal device uplink transmission is in a specific RB allocation area according to the third indication information and the specific RB allocation area. If yes, step S1304 can be performed. If not, the terminal device cannot perform the transmission power enhancement in the specific RB allocation area under the first condition.

[0180] S1304: The terminal device performs the transmission power enhancement in the specific RB allocation area under the first condition.

[0181] The terminal device determines that the frequency domain resource of the terminal device uplink transmission is in the specific RB allocation area, and thus can perform the transmission power enhancement in the specific RB allocation area under the first condition. Since the terminal device has reported the capability information to the network device, the capability information is used to indicate that the terminal device can perform the transmission power enhancement in the specific RB allocation area under the first condition, and thus the network device can know that the terminal device performs the transmission power enhancement in the specific RB allocation area under the first condition.

[0182] It can be understood that various numbers involved in the embodiments of the present application are only used for differentiation for convenience of description, and do not limit the scope of the embodiments of the present application. The size of the serial number of each process does not mean the execution order, and the execution order of each process should be determined according to its function and inherent logic. For example, step S1302 can be performed before step S1301, and the embodiments of the present application do not limit this.

[0183] In the embodiments of the present application, the terminal device can realize self-enhancement. After reporting the capability information, when it is judged that the frequency domain resource of the uplink transmission is in a specific RB allocation area, the terminal device can perform transmit power enhancement in the specific RB allocation area under a first condition. The terminal device can perform transmit power enhancement in the specific RB allocation area under the first condition, and the first condition includes that the first RF index does not need to be met or only the second RF index needs to be met. That is, in the specific RB allocation area, the terminal device can realize transmit power enhancement under the condition of different relaxed RF indexes. Through the relaxation of the RF index, the terminal device can realize transmit power enhancement by only judging and adjusting the corresponding PA parameters (such as not needing to meet the first RF index or only needing to meet the second RF index) of the specific RB allocation area without changing the software and hardware, thereby improving the reliability of the transmit power enhancement of the terminal device.

[0184] In combination with the above Figure 8 , for the second possible implementation of the terminal device performing transmit power enhancement in the specific RB allocation area under the first condition, please refer to Figure 14 , Figure 14 is another communication method provided by the embodiments of the present application. As shown in Figure 14 , the communication method can include at least the following steps.

[0185] S1401: The terminal device sends the capability information of the terminal device to the network device, and the capability information is used to indicate that the terminal device can perform transmit power enhancement in a specific RB allocation area under a first condition. Correspondingly, the network device receives the capability information from the terminal device.

[0186] It can be understood that step S1401 corresponds to step S801, and the specific description can be referred to the above S801, which will not be repeated here.

[0187] S1402: The network device sends the first indication information to the terminal device, and the first indication information is used to indicate that the terminal device performs transmit power enhancement in the specific RB allocation area under the first condition.

[0188] After the network device receives the capability information from the terminal device, the network device can determine the value corresponding to the first indication information according to different application scenarios, and send the first indication information to the terminal device, which is used to indicate that the terminal device performs transmit power enhancement in the specific RB allocation area under the first condition. The specific description can be referred to the description in the above S802, which will not be repeated here.

[0189] S1403: The network device sends third indication information to the terminal device, and the third indication information is used to indicate the frequency domain resource of the terminal device uplink transmission. Correspondingly, the terminal device receives the third indication information from the network device.

[0190] The frequency domain resource of the terminal device uplink transmission includes the RB start position of the terminal device uplink transmission and the number of RBs of the terminal device uplink transmission. The third indication information can be carried in the IE, RRC or MAC CE.

[0191] S1404: The terminal device determines whether the frequency domain resource of the terminal device uplink transmission is in the specific RB allocation area. If yes, step S1405 is performed.

[0192] After the terminal device receives the third indication information from the network device, the terminal device can determine whether the frequency domain resource of the terminal device uplink transmission is in the specific RB allocation area according to the third indication information and the specific RB allocation area. If yes, the terminal device can perform step S1405 according to the first indication information. If no, the terminal device cannot perform the transmit power enhancement in the specific RB allocation area under the first condition.

[0193] S1405: The terminal device performs the transmit power enhancement in the specific RB allocation area under the first condition.

[0194] The terminal device determines that the frequency domain resource of the terminal device uplink transmission is in the specific RB allocation area. Therefore, the terminal device can perform the transmit power enhancement in the specific RB allocation area under the first condition according to the first indication information.

[0195] S1406: The network device sends second indication information to the terminal device, and the second indication information is used to indicate that the terminal device needs to meet the first RF index without performing the transmit power enhancement in the specific RB allocation area. Correspondingly, the terminal device receives the second indication information from the network device.

[0196] The network device can deconfigure / deactivate the terminal device through the indication information. For example, the network device sends the second indication information to the terminal device, and the second indication information is used to indicate that the terminal device needs to meet the first RF index without performing the transmit power enhancement in the specific RB allocation area. For example, the second indication information can correspond to a third value (for example, IE=0), which is used to indicate that the terminal device needs to meet the first RF index without performing the transmit power enhancement in the specific RB allocation area. Thus, the network device can deconfigure / deactivate the terminal device.

[0197] It can be understood that various numerical numbers involved in the embodiments of the present application are only distinguished for the convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic. For example, step S1403 can be executed before step S1401 and step S1402, or step S1402 and step S1403 can be executed together, and the embodiments of the present application do not limit this.

[0198] In the embodiments of the present application, the network device can configure / activate the terminal device to perform transmit power enhancement in a specific RB allocation area under a first condition according to different scenarios through the indication information. The terminal device can perform transmit power enhancement on the specific RB allocation area under the first condition, and the first condition includes not needing to meet the first RF indicator or only needing to meet the second RF indicator. That is, on the specific RB allocation area, the terminal device can achieve transmit power enhancement under the condition of different relaxed RF indicators. Through the relaxation of the RF indicator, the terminal device can achieve transmit power enhancement only by judging and adjusting the corresponding PA parameters (such as not needing to meet the first RF indicator or only needing to meet the second RF indicator) of the specific RB allocation area without changing the software and hardware, thereby improving the reliability of the transmit power enhancement of the terminal device.

[0199] It can be understood that in order to realize the functions in the above embodiments, the terminal device and the network device include the corresponding hardware structure and / or software modules for executing each function. Those skilled in the art should easily realize that the units and method steps of the examples described in combination with the embodiments disclosed in the present application can be realized in the form of hardware or hardware and computer software. Whether a certain function is executed in the form of hardware or computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0200] Figure 15 and Figure 16 The structure schematic diagram of the possible communication apparatus provided by the embodiments of the present application is shown. These communication apparatuses can be used to realize the functions of the terminal device or the network device in the above method embodiments, and thus can also realize the beneficial effects possessed by the above method embodiments. The communication apparatus can be a terminal device or a network device. The communication apparatus includes the modules or units corresponding to the methods / operations / steps / actions performed by the terminal device or the network device in the above method embodiments, which can be hardware circuits, software, or a combination of hardware circuits and software. In the embodiments of the present application, the communication apparatus can be one of the terminal devices 120a-120j as shown in Figure 1 Figure 1 ​The network device 110a or 110b shown can also be a module (such as a chip) applied to a terminal device or a network device.

[0201] As shown in the method embodiments shown in Figure 15 , Figure 8 , Figure 13 and Figure 14 , the communication device 1500 can be used to implement the functions of a terminal device or a network device.

[0202] When the communication device 1500 is used to implement the functions of a terminal device in the method embodiments shown in Figure 8 , Figure 13 and Figure 14 , the communication device 1500 can include the following components:

[0203] The transceiver 1501 is configured to send the capability information of the terminal device to the network device, and the capability information of the terminal device is used to indicate that the terminal device can perform transmit power enhancement on a specific RB allocation area under a first condition; wherein the first condition includes that the terminal device does not need to meet a first RF indicator or the terminal device only needs to meet a second RF indicator, and the second RF indicator is a relaxed first RF indicator.

[0204] The processing unit 1502 is configured to perform transmit power enhancement in the specific RB allocation area under the first condition.

[0205] In one possible implementation, the RB start position RB Start of the specific RB allocation area satisfies the following conditions: RB Start <RB Start,Low +P2 or RB Start >RB Start,High +P3. Wherein, RB Start,Low = max(1, floor(L CRB / 2)), RB Start,High = N RB -RB Start,Low -L CRB , L CRB < ceil(N RB / 2), P2 and P3 are related to N RB , and N RB represents the maximum number of RBs of the channel bandwidth of the terminal device, and ceil is the smallest integer greater than or equal to N RB / 2.

[0206] In one possible implementation, if the first condition includes that the terminal device only needs to meet the second RF indicator, different specific RB allocation areas correspond to different second RF indicators.

[0207] In a possible implementation, the transceiver 1501 is further configured to receive first indication information from the network device, where the first indication information is used to indicate that the terminal device performs transmit power boosting in the specific RB allocation region under the first condition.

[0208] The processing unit 1502 performs transmit power boosting in the specific RB allocation region under the first condition, and specifically, performs transmit power boosting in the specific RB allocation region under the first condition according to the first indication information.

[0209] In a possible implementation, the first indication information corresponds to a first value, and is used to indicate that the terminal device does not need to meet the first RF indicator while performing transmit power boosting in the specific RB allocation region.

[0210] In a possible implementation, the first indication information corresponds to a second value, and is used to indicate that the terminal device only needs to meet the second RF indicator while performing transmit power boosting in the specific RB allocation region.

[0211] In a possible implementation, the transceiver 1501 is further configured to receive third indication information from the network device, where the third indication information is used to indicate frequency domain resources of uplink transmission of the terminal device, and the frequency domain resources of uplink transmission of the terminal device include an RB start position of uplink transmission of the terminal device and a number of RBs of uplink transmission of the terminal device.

[0212] In a possible implementation, the processing unit 1502 is further configured to determine, according to the first indication information of the network device and the specific RB allocation region, that the frequency domain resources of uplink transmission of the terminal device from the network device are in the specific RB allocation region.

[0213] In a possible implementation, the transceiver 1501 is further configured to receive second indication information from the network device, where the second indication information is used to indicate that the terminal device needs to meet the first RF indicator while not performing transmit power boosting in the specific RB allocation region.

[0214] In a possible implementation, the transmit power boosting includes MPR reduction by a first value or transmit power increase of the terminal device by a first parameter.

[0215] In a possible implementation, the first value or the first parameter corresponding to the DFT-s-OFDM waveform and the CP-OFDM waveform are different, or the first value or the first parameter corresponding to different modulation modes are different.

[0216] In a possible implementation, the first indication information or the second indication information is carried in an IE, RRC, or MAC CE.

[0217] In a possible implementation, the RF indicators include one or more of the following: ACLR, SEM, IBE, EVM, and spurious.

[0218] When the communication apparatus 1500 is configured to implement the network device in the method embodiments shown in Figure 8 、 Figure 13 and Figure 14 , the following applies:

[0219] The transceiver 1501 is configured to receive capability information from a terminal device, the capability information of the terminal device indicating that the terminal device is capable of performing transmit power boosting on a specific RB allocation region under a first condition; wherein the first condition includes that the terminal device does not need to meet a first RF indicator or the terminal device only needs to meet a second RF indicator, the second RF indicator being a relaxed first RF indicator.

[0220] In a possible implementation, the RB start position of the specific RB allocation region RB Start satisfies the following condition: RB Start < RB Start,Low + P2 or RB Start > RB Start,High + P3. Wherein RB Start,Low = max(1, floor(L CRB / 2)), RB Start,High = N RB - RB Start,Low - L CRB , L CRB < ceil(N RB / 2), P2 and P3 are related to N RB , and N RB represents the maximum number of RBs of the channel bandwidth of the terminal device, and ceil is the smallest integer greater than or equal to N RB / 2.

[0221] In a possible implementation, if the first condition includes that the terminal device only needs to meet the second RF indicator, different specific RB allocation regions correspond to different second RF indicators.

[0222] In a possible implementation, the transceiver 1501 is further configured to send first indication information to the terminal device, the first indication information indicating that the terminal device performs transmit power boosting in the specific RB allocation region under the first condition.

[0223] In a possible implementation, if there is no adjacent channel around the channel bandwidth of the terminal device or if there is an adjacent channel around the channel bandwidth of the terminal device but the adjacent channel belongs to the same application server, the first indication information corresponds to a first value, and the first value is used to indicate that the terminal device does not need to meet the first RF index while performing the transmit power enhancement in the specific RB allocation area.

[0224] In a possible implementation, if there is an adjacent channel around the channel bandwidth of the terminal device but the adjacent channel belongs to different application servers, the first indication information corresponds to a second value, and the second value is used to indicate that the terminal device only needs to meet the second RF index while performing the transmit power enhancement in the specific RB allocation area.

[0225] In a possible implementation, part or all of the terminal devices in the cell are allowed to perform the transmit power enhancement on the specific RB allocation area under the first condition.

[0226] In a possible implementation, the transceiver 1501 is further configured to send, to the terminal device, third indication information, where the third indication information is used to indicate a frequency domain resource of uplink transmission of the terminal device, and the frequency domain resource of the uplink transmission of the terminal device includes a starting position of an RB of the uplink transmission of the terminal device and a quantity of RBs of the uplink transmission of the terminal device.

[0227] In a possible implementation, the transceiver 1501 is further configured to send, to the terminal device, second indication information, where the second indication information is used to indicate that the terminal device needs to meet the first RF index while not performing the transmit power enhancement in the specific RB allocation area.

[0228] In a possible implementation, the transmit power enhancement includes a decrease of the MPR by a first value or an increase of the transmit power of the terminal device by a first parameter.

[0229] In a possible implementation, the first value or the first parameter corresponding to the DFT-s-OFDM waveform and the CP-OFDM waveform is different, or the first value or the first parameter corresponding to different modulation modes is different.

[0230] In a possible implementation, the first indication information or the second indication information is carried in an IE, an RRC, or a MAC CE.

[0231] In a possible implementation, the RF index includes one or more of the following: ACLR, SEM, IBE, EVM, and spurious.

[0232] For more details of the transceiver 1501 and the processing unit 1502, refer to the related description in the method embodiments shown in Figure 8 、 Figure 13 and Figure 14 .

[0233] AsFigure 16 The communication apparatus 1600 is configured to implement the functions of the terminal device or the network device. The apparatus can be a communication device or an apparatus used in a communication device. The communication device can be a terminal device or a network device. The apparatus used in a communication device can be a chip system or a chip in the communication device. The chip system can be composed of a chip or can include a chip and other discrete devices.

[0234] The communication apparatus 1600 includes at least one processor 1610 configured to implement the processing functions of the device (e.g., the network device or the terminal device) in the methods according to the embodiments. The communication apparatus 1600 can further include a communication interface 1620 configured to implement the transceiving operations of the device (e.g., the network device or the terminal device) in the methods according to the embodiments. In the embodiments, the communication interface can be a transceiver, a circuit, a bus, a module or other types of communication interfaces, configured to communicate with other devices through a transmission medium. For example, the communication interface 1620 is configured to enable the apparatus in the communication apparatus 1600 to communicate with other devices. The processor 1610 transceives data through the communication interface 1620 and is configured to implement the methods in the method embodiments.

[0235] The communication apparatus 1600 can further include at least one memory 1630 configured to store program instructions and / or data. The memory 1630 is coupled to the processor 1610. The coupling between the apparatuses, units or modules in the embodiments is indirect coupling or communication connection therebetween, which can be electrical, mechanical or other forms, for information interaction between the apparatuses, units or modules. The processor 1610 can operate in cooperation with the memory 1630. The processor 1610 can execute the program instructions stored in the memory 1630. At least one of the at least one memory can be included in the processor.

[0236] The specific connection medium between the communication interface 1620, the processor 1610 and the memory 1630 is not limited in the embodiments. In the embodiments, the connection between the memory 1630, the processor 1610 and the communication interface 1620 is through a bus. The bus is represented by a thick line in the embodiments, and the connection mode between other components is only schematically illustrated and is not limited. The bus can be divided into an address bus, a data bus, a control bus, etc. For convenience of representation, only one thick line is used to represent the bus in the embodiments, but it does not mean that there is only one bus or only one type of bus. Figure 16 Figure 16 Figure 16

[0237] ​​​When the communication apparatus 1600 is specifically a chip or chip system for a device (e.g., a network device or a terminal device), the communication interface 1620 can output or receive a baseband signal. When the communication apparatus 1600 is specifically a device (e.g., a network device or a terminal device), the communication interface 1620 can output or receive a radio frequency signal. In the embodiments of the present application, the processor can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, and can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in conjunction with the embodiments of the present application can be directly embodied as hardware processor execution or executed by a combination of hardware and software modules in the processor.

[0238] It should be noted that the communication interface 1620 can be used to perform the functions of the aforementioned processing unit 1502, and the processor 1610 can be used to perform the functions of the aforementioned transceiver unit 1501, which will not be described herein.

[0239] When the communication apparatus is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the method embodiments, and the terminal device chip receives information from other network elements; or the terminal device chip sends information to other network elements.

[0240] When the communication apparatus is a chip applied to a network device, the network device chip implements the functions of the network device in the method embodiments. The network device chip receives information from other network elements; or the network device chip sends information to other network elements.

[0241] It can be understood that the processor in the embodiments of the present application can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor can be a microprocessor or any conventional processor.

[0242] The method steps in the embodiments of the present application can be realized by hardware or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, which can be stored in a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically EPROM (EEPROM), a register, a hard disk, a mobile hard disk, a CD-ROM, or any other form of storage medium well known in the art. An exemplary storage medium is coupled to a processor, so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a network device or a terminal device. Of course, the processor and the storage medium can also exist as discrete components in a terminal device or a network device.

[0243] In the above embodiments, all or part of the embodiments can be realized by software, hardware, firmware, or any combination thereof. When realized by software, all or part of the embodiments can be realized in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When loaded and executed by a computer, all or part of the processes or functions described in the embodiments of the present application are performed. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer program or instructions can be stored in a computer-readable storage medium or transmitted by the computer-readable storage medium. The computer-readable storage medium can be any available medium accessible by a computer or a data storage device such as a server integrated with one or more available media. The available medium can be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; an optical medium, such as a DVD; or a semiconductor medium, such as a solid state disk (SSD).

[0244] In various embodiments of the present application, the terms and / or descriptions of different embodiments are consistent and can be mutually referred to if there is no special description and no logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0245] It can be understood that various numerical numbers involved in the embodiments of the present application are only distinguished for the convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic.

[0246] The embodiments of the present application also provide a computer readable storage medium, which stores computer execution instructions, when the computer execution instructions are executed, the method executed by the terminal device or the network device in the above method embodiments is realized.

[0247] The embodiments of the present application also provide a computer program product, which includes a computer program, when the computer program is executed, the method executed by the terminal device or the network device in the above method embodiments is realized.

[0248] The embodiments of the present application also provide a communication system, which includes a terminal device or a network device. Wherein, the terminal device is used to execute the method executed by the terminal device in the above method embodiments. The network device is used to execute the method executed by the network device in the above method embodiments.

[0249] It should be noted that for the above-mentioned method embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited to the action order described, because according to the present application, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0250] The description of each embodiment provided by the present application can be referred to each other, and the description of each embodiment is focused on different aspects. The parts not described in detail in a certain embodiment can be referred to the related description of other embodiments. For the convenience and brevity of description, for example, the functions of the devices and the steps executed by the devices provided by the embodiments of the present application can be referred to the related description of the method embodiments of the present application, and the method embodiments and the device embodiments can also be referred to, combined or cited.

[0251] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A communication method, characterized in that: include: Sending capability information of a terminal device to a network device, where the capability information of the terminal device is used to indicate that the terminal device is capable of performing transmit power boost on a specific resource block (RB) allocation area under a first condition; wherein the first condition includes: the terminal device does not need to meet a first radio frequency (RF) indicator or the terminal device only needs to meet a second RF indicator, where the second RF indicator is a relaxed first RF indicator; Transmit power boosting is performed within the specific RB allocation area under the first condition.

2. The method according to claim 1, characterized in that The RB starting position RB of the specific RB allocation area Start The following conditions are met: RB Start <RB Start,Low +P2 or RB Start >RB Start,High +P3 Among them, RB Start,Low =max(1,floor(L CRB / 2)), RB Start,High =N RB -RB Start,Low -L CRB , L CRB <ceil(N RB / 2), P2, P3 and N RB Related, N RB Indicates the maximum number of RBs in the terminal device channel bandwidth, ceil is greater than or equal to N RB The smallest integer greater than / 2.

3. The method according to claim 1 or 2, characterized in that If the first condition includes that the terminal device only needs to meet the second RF indicator, different specific RB allocation areas correspond to different second RF indicators.

4. The method according to any one of claims 1 to 3, characterized in that The performing transmit power boosting within the specific RB allocation area under the first condition includes: Receiving first indication information from the network device, where the first indication information is used to instruct the terminal device to perform transmit power boost within the specific RB allocation area under the first condition; Perform transmit power boosting within the specific RB allocation area under the first condition according to the first indication information.

5. The method according to claim 4, characterized in that The first indication information corresponds to a first numerical value, which is used to indicate that within the specific RB allocation area, the terminal device does not need to meet the first RF indicator and perform transmission power enhancement at the same time.

6. The method according to claim 4, characterized in that The first indication information corresponds to a second value, which is used to indicate that within the specific RB allocation area, the terminal device only needs to meet the second RF indicator and perform transmission power enhancement at the same time.

7. The method according to any one of claims 1 to 6, characterized in that The method further comprises: Receive second indication information from the network device, where the second indication information is used to indicate that the terminal device needs to meet the first RF indicator within the specific RB allocation area while not performing transmission power enhancement.

8. The method according to any one of claims 1 to 7, characterized in that The transmit power enhancement includes reducing the maximum power backoff MPR by a first value or increasing the transmit power of the terminal device by a first parameter.

9. The method according to claim 8, characterized in that The first value or first parameter corresponding to the discrete Fourier transform spread orthogonal frequency division multiplexing DFT-s-OFDM waveform is different from that corresponding to the cyclic prefix orthogonal frequency division multiplexing CP-OFDM waveform; or Different modulation modes correspond to different first values ​​or first parameters.

10. The method according to any one of claims 4 to 9, characterized in that: The first indication information or the second indication information is carried in an information element IE, a radio resource control RRC or a media access control element MAC CE.

11. The method according to any one of claims 1 to 10, characterized in that The RF indicators include one or more of the following: adjacent channel leakage ratio ACLR, spectrum emission mask SEM, in-band emission IBE, error vector magnitude EVM, and spurious.

12. A communication method, characterized in that: include: Receive capability information from a terminal device, where the capability information of the terminal device is used to indicate that the terminal device is capable of performing transmit power enhancement on a specific resource block (RB) allocation area under a first condition; wherein the first condition includes: the terminal device does not need to meet a first RF indicator or the terminal device only needs to meet a second RF indicator, and the second RF indicator is a relaxed first RF indicator.

13. The method according to claim 12, characterized in that The RB starting position RB of the specific RB allocation area Start The following conditions are met: RB Start <RB Start,Low +P2 or RB Start >RB Start,High +P3 Among them, RB Start,Low =max(1,floor(L CRB / 2)), RB Start,High =N RB -RB Start,Low -L CRB , L CRB <ceil(N RB / 2), P2, P3 and N RB Related, N RB Indicates the maximum number of RBs in the terminal device channel bandwidth, ceil is greater than or equal to N RB The smallest integer greater than / 2.

14. The method according to claim 12 or 13, characterized in that If the first condition includes that the terminal device only needs to meet the second RF indicator, different specific RB allocation areas correspond to different second RF indicators.

15. The method according to any one of claims 12 to 14, characterized in that: The method further comprises: Send first indication information to the terminal device, where the first indication information is used to instruct the terminal device to perform transmission power enhancement within the specific RB allocation area under the first condition.

16. The method according to claim 15, characterized in that If there are no adjacent channels around the channel bandwidth of the terminal device or if there are adjacent channels around the channel bandwidth of the terminal device but they belong to the same application server, the first indication information corresponds to a first numerical value, which is used to indicate that within the specific RB allocation area, the terminal device does not need to meet the first RF indicator and perform transmission power enhancement at the same time.

17. The method according to claim 15, characterized in that If there are adjacent channels around the channel bandwidth of the terminal device but they belong to different application servers, the first indication information corresponds to a second value, which is used to indicate that within the specific RB allocation area, the terminal device only needs to meet the second RF indicator and perform transmission power enhancement at the same time.

18. The method according to any one of claims 12 to 17, characterized in that: The method further comprises: Send a second indication message to the terminal device, where the second indication message is used to indicate that the terminal device needs to meet the first RF indicator within the specific RB allocation area while not performing transmission power enhancement.

19. The method according to any one of claims 12 to 18, characterized in that: The transmit power enhancement includes reducing the maximum power backoff MPR by a first value or increasing the transmit power of the terminal device by a first parameter.

20. The method according to claim 19, wherein The first value or first parameter corresponding to the discrete Fourier transform spread orthogonal frequency division multiplexing DFT-s-OFDM waveform is different from that corresponding to the cyclic prefix orthogonal frequency division multiplexing CP-OFDM waveform; or Different modulation modes correspond to different first values ​​or first parameters.

21. The method according to any one of claims 15 to 20, characterized in that The first indication information or the second indication information is carried in an information element IE, a radio resource control RRC or a media access control element MAC CE.

22. The method according to any one of claims 12 to 21, characterized in that The RF indicators include one or more of the following: adjacent channel leakage ratio ACLR, spectrum emission mask SEM, in-band emission IBE, error vector magnitude EVM, and spurious.

23. A communication device, characterized in that: The method comprises a unit for executing the method according to any one of claims 1 to 11; or a unit for executing the method according to any one of claims 12 to 22.

24. A communication device, characterized in that: include: A processor is coupled to a memory, wherein the memory is used to store a program or an instruction, and when the program or the instruction is executed by the processor, the apparatus executes the method according to any one of claims 1 to 22.

25. A computer-readable storage medium, characterized in that The storage medium stores a computer program or instruction, and when the computer program or instruction is executed, the method according to any one of claims 1 to 22 is implemented.

26. A computer program product, characterized in that The method comprises a computer program code, and when the computer program code is executed, the method according to any one of claims 1 to 22 is implemented.

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