WO2023040688A1

WO2023040688A1 - Communication method, apparatus and system

Info

Publication number: WO2023040688A1
Application number: PCT/CN2022/117020
Authority: WO
Inventors: 杨莎; 韩晓国
Original assignee: 华为技术有限公司
Priority date: 2021-09-16
Filing date: 2022-09-05
Publication date: 2023-03-23
Also published as: CN115835359A

Abstract

Disclosed in the embodiments of the present application are a communication method, apparatus and system. The method comprises: a terminal device sending, to a network device, a first PHR that comprises first power headroom, and sending, to the network device, a second PHR that comprises second power headroom; and the network device determining an MPR of the terminal device according to the first power headroom and the second power headroom, wherein resources or modulation/demodulation methods that are used by the first PHR and the second PHR are different. By means of the embodiments of the present application, a network device can determine an MPR of a terminal device according to two pieces of power headroom that are reported by the terminal device, such that the MPR of the terminal device can be used in the adjustment of an SINR of scheduling, thereby increasing an air interface performance gain.

Description

A communication method, device and system

This application claims the priority of the Chinese patent application with the application number 202111088894.0 and the application title "a communication method, device and system" submitted to the China Patent Office on September 16, 2021, the entire contents of which are incorporated in this application by reference middle.

technical field

The embodiments of the present application relate to the field of communication technologies, and in particular, to a communication method, device, and system.

Background technique

The maximum backoff power (maximum power reduction, MPR) is the difference between the maximum transmit power corresponding to the terminal device and the actual transmit power. The resources and/or modulation and demodulation modes used by the terminal equipment are different, and the MPR of the terminal equipment may be different. However, the scheduling behavior of the network equipment is a priori behavior. Since the network equipment cannot know the MPR of the terminal equipment, the network equipment cannot optimize the scheduling, resulting in poor air interface performance gain. However, in the prior art, the network device cannot obtain the MPR of the terminal device.

Contents of the invention

The embodiment of the present application discloses a communication method, device and system, which are used to improve air interface performance gain.

The first aspect discloses a communication method, which can be applied to a network device or to a module (for example, a chip) in the network device. The following describes the application to network devices as an example. This method of communication may include:

The network device receives a first power headroom report (power headroom report, PHR) including the first power headroom from the terminal device. The network device receives the second PHR including the second power headroom from the terminal device, and resources or modulation and demodulation modes used by the first PHR and the second PHR are different. The network device determines the MPR of the terminal device according to the first power headroom and the second power headroom.

In this embodiment of the present application, the network device receives the first PHR including the first power headroom from the terminal device, receives the second PHR including the second power headroom from the terminal device, and the first PHR and the second PHR In the case of different resources or modulation and demodulation methods used by the PHR, the MPR of the terminal device can be determined according to the first power headroom and the second power headroom, and then the MPR can be used in the scheduling signal to interference plus noise ratio (signal to interference plus noise ratio, SINR) adjustment, the value of SINR can be increased, thereby improving the performance gain of the air interface.

As a possible implementation manner, the network device may determine the MPR of the terminal device according to the first power headroom and the second power headroom: the network device calculates the absolute value of the difference between the first power headroom and the second power headroom Determine the MPR for the terminal device.

As a possible implementation manner, the network device may also send the first indication information to the terminal device. The first indication information is used to indicate the first resource, the first modulation and demodulation method, and report the power headroom corresponding to the first resource and the first modulation and demodulation method. The first power headroom is the first resource and the first modulation and demodulation method. The power headroom corresponding to the mode. The network device also sends second indication information to the terminal device. The second indication information is used to indicate the second resource, the second modulation and demodulation method, and report the power headroom corresponding to the second resource and the second modulation and demodulation method. The second power headroom is the second resource and the second modulation and demodulation method. The power headroom corresponding to the mode.

In the embodiment of this application, when the network device needs to perform power detection, the network device can send indication information to the terminal device, so that the terminal device can report the first PHR and the second PHR according to the indication information, and the network device can use the first power The headroom and the second power headroom determine the MPR of the terminal equipment, and then the MPR can be used in scheduling SINR adjustment, which can increase the value of the SINR, thereby improving air interface performance gain. It can be seen that when the network device needs to perform power detection, the network device can instruct the terminal device to report the PHR including the power headroom, so that the power headroom reported by the terminal device is the power headroom required by the network device, so that the network device can accurately The MPR of the terminal equipment is determined, so that the performance gain of the air interface can be optimized.

As a possible implementation manner, the network device sending the first indication information to the terminal device may include: the network device sending the first indication information to the terminal device according to a scheduling period of the PHR. The network device sending the second indication information to the terminal device may include: the network device sending the second indication information to the terminal device according to a scheduling period of the PHR.

In this embodiment of the application, the instruction information sent by the network device to the terminal device may be sent according to the scheduling period of the PHR, so that the time for the terminal device to receive the instruction information will not be too early or too late. After the indication information until the PHR period is reached, the terminal device can prepare the power headroom to be sent, and the waiting time will not be too long, so that the timely reporting of the power headroom can be ensured.

As a possible implementation manner, the first modulation and demodulation mode may be the same as the second modulation and demodulation mode, and the first resource may be different from the second resource.

As a possible implementation manner, the first resource may be an edge resource block (resource block, RB), and the second resource may be a central RB; or the first resource may be a central RB, and the second resource may be an edge RB.

As a possible implementation manner, the first indication information and the second indication information may be carried in downlink control information (downlink control information, DCI) 0-0.

In the embodiment of the present application, the indication information sent by the network device can be carried in the existing DCI 0-0, which is less different from the existing protocol and has better compatibility.

As a possible implementation manner, the first modulation and demodulation mode may be different from the second modulation and demodulation mode, and the first resource may be the same as the second resource.

As a possible implementation manner, the first indication information and the second indication information may be carried in a media access control (media access control, MAC) control element (control element, CE), or may be carried in a DCI, or Carried in radio resource control (radio resource control, RRC) signaling.

As a possible implementation manner, the first resource and the second resource may be edge RBs or central RBs.

The second aspect discloses a communication method, which can be applied to a terminal device, and can also be applied to a module (for example, a chip) in the terminal device. The following uses an application to a terminal device as an example for description. The communication method may include: the terminal device sends the first PHR including the first power headroom to the network device. The terminal device sends the second PHR including the second power headroom to the network device, and resources or modulation and demodulation modes used by the first PHR and the second PHR are different.

In this embodiment of the application, the terminal device may report to the network device the first PHR including the first power headroom, the second PHR including the second power headroom, and the resource or modem used by the first PHR and the second PHR. The methods are different, so that the network device can determine the MPR of the terminal device according to the first power headroom and the second power headroom, and then use the MPR in scheduling SINR adjustment, which can increase the value of SINR, thereby improving air interface performance gain.

As a possible implementation manner, the communication method may further include: the terminal device receives first indication information from the network device. The first indication information is used to indicate the first resource, the first modulation and demodulation mode, and report the power headroom corresponding to the first resource and the first modulation and demodulation mode;

The terminal device determines the first power headroom according to the first resource and the first modulation and demodulation mode. The terminal device receives second indication information from the network device, where the second indication information is used to indicate the second resource, the second modulation and demodulation mode, and report the power headroom corresponding to the second resource and the second modulation and demodulation mode. The terminal device determines the second power headroom according to the second resource and the second adjusted demodulation mode.

In the embodiment of this application, the terminal device can report the first PHR and the second PHR according to the instruction of the network device, so that the network device can determine the MPR of the terminal device according to the first power headroom and the second power headroom, and then the MPR can be Used in scheduling SINR adjustment, the value of SINR can be increased, thereby improving air interface performance gain. It can be seen that the power headroom reported by the terminal device is reported according to the instruction of the network device, and is reported according to the needs of the network device when the network device needs to perform power detection, so that the network device can accurately determine the MPR of the terminal device, and then can Optimize air interface performance gain.

As a possible implementation manner, the first resource may be an edge RB, and the second resource may be a central RB; or the first resource may be a central RB, and the second resource may be an edge RB.

As a possible implementation manner, the first indication information and the second indication information may be carried in DCI0-0.

As a possible implementation manner, the first indication information and the second indication information may be carried in a media access control layer control element (media access control control element, MAC CE), may also be carried in DCI, and may also be carried in In RRC signaling.

The third aspect discloses a communication method, which can be applied to network equipment, and can also be applied to modules (eg, chips) in the network equipment. The following describes the application to network devices as an example. The communication method may include: the network device sends indication information to the terminal device, where the indication information is used to instruct to report the MPR. The network device receives the first MPR from the terminal device.

In the embodiment of the present application, when the network device needs to perform power detection, the network device can send indication information to the terminal device, so that the terminal device can report the MPR according to the indication information, and the network device can use the MPR in scheduling SINR adjustment, The value of the SINR can be increased, so that the performance gain of the air interface can be improved.

As a possible implementation manner, the network device sending the indication information to the terminal device may include: the network device sending RRC signaling to the terminal device, where the RRC signaling includes the indication information.

As a possible implementation manner, the sending the indication information from the network device to the terminal device may include: the network device sending DCI to the terminal device, where the DCI includes the indication information.

As a possible implementation manner, the network device sending the indication information to the terminal device may include: the network device sends a MAC CE to the terminal device, and the MAC CE includes the indication information.

The fourth aspect discloses a communication method, which can be applied to a terminal device, and can also be applied to a module (for example, a chip) in the terminal device. The following uses an application to a terminal device as an example for description. This method of communication may include:

The terminal device receives indication information from the network device, where the indication information is used to instruct to report the MPR. The terminal device sends the first MPR to the network device according to the indication information.

As a possible implementation manner, the terminal device receiving the indication information from the network device may include: the terminal device receiving RRC signaling from the network device, where the RRC signaling includes the indication information.

As a possible implementation manner, the terminal device receiving the indication information from the network device includes: the terminal device receiving DCI from the network device, where the DCI includes the indication information.

As a possible implementation manner, the terminal device receiving the instruction information from the network device includes: the terminal device receives a MAC CE from the network device, and the MAC CE includes the instruction information.

The fifth aspect discloses a communication device. The communication device may include a processor, configured to enable the communication device to implement the communication method disclosed in the first aspect or any implementation manner of the first aspect, or to enable the communication device to implement the third aspect or any implementation manner of the third aspect public communication method. Optionally, the communication device may further include a memory, and/or a transceiver, and the transceiver is used to receive information from other communication devices other than the communication device, and to output information to other communication devices other than the communication device. When the processor executes the computer program stored in the memory, the processor executes the communication method disclosed in the first aspect or any implementation manner of the first aspect, or causes the processor to execute the communication method disclosed in the third aspect or any implementation manner of the third aspect. communication method.

The sixth aspect discloses a communication device. The communication device may include a processor, configured to enable the communication device to implement the second aspect or the communication method disclosed in any implementation manner of the second aspect, or to enable the communication device to implement the fourth aspect or any one of the fourth aspect. The communication method disclosed in the embodiment. Optionally, the communication device may further include a memory, and/or a transceiver, and the transceiver is used to receive information from other communication devices other than the communication device, and to output information to other communication devices other than the communication device. When the processor executes the computer program stored in the memory, the processor executes the communication method disclosed in the second aspect or any implementation manner of the second aspect, or causes the processor to execute the communication method disclosed in the fourth aspect or any implementation manner of the fourth aspect. communication method.

A seventh aspect discloses a communication system, which includes the communication device of the fifth aspect and the communication device of the sixth aspect.

The eighth aspect discloses a computer-readable storage medium, on which a computer program or computer instruction is stored, and when the computer program or computer instruction is run, the communication method as disclosed in the above aspects is implemented.

A ninth aspect discloses a chip, including a processor, configured to execute a program stored in a memory, and when the program is executed, the chip executes the above method.

As a possible implementation manner, the memory is located outside the chip.

The tenth aspect discloses a computer program product, the computer program product includes computer program code, and when the computer program code is executed, the above communication method is executed.

Description of drawings

FIG. 1 is a schematic diagram of a network architecture disclosed in an embodiment of the present application;

FIG. 2 is a schematic flowchart of a communication method disclosed in an embodiment of the present application;

FIG. 3 is a schematic flowchart of another communication method disclosed in the embodiment of the present application;

FIG. 4 is a schematic flowchart of another communication method disclosed in the embodiment of the present application;

FIG. 5 is a schematic flowchart of another communication method disclosed in the embodiment of the present application;

FIG. 6 is a schematic structural diagram of a communication device disclosed in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of another communication device disclosed in the embodiment of the present application;

FIG. 8 is a schematic structural diagram of another communication device disclosed in the embodiment of the present application;

FIG. 9 is a schematic structural diagram of another communication device disclosed in an embodiment of the present application.

Detailed ways

The embodiment of the present application discloses a communication method, device and system, which are used to improve air interface performance gain. Each will be described in detail below.

In order to better understand a communication method, device, and system disclosed in the embodiment of the present application, the network architecture used in the embodiment of the present application is first described below. Please refer to FIG. 1 . FIG. 1 is a schematic diagram of a network architecture disclosed in an embodiment of the present application. As shown in FIG. 1 , the network architecture may include a terminal device 101 and a network device 102 . The communication between the terminal device 101 and the network device 102 may include uplink communication (ie, communication from the terminal device 101 to the network device 102 ) and downlink communication (ie, communication from the network device 102 to the terminal device 101 ). In uplink communication, the terminal device 101 is used to send an uplink signal to the network device 102 ; the network device 102 is used to receive the uplink signal from the terminal device 101 . In downlink communication, the network device 102 is configured to send downlink signals to the terminal device 101 ; the terminal device 101 is configured to receive downlink signals from the network device 102 .

Terminal equipment 101, which can also be called user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT), etc., is a device that provides voice and/or data connectivity to users. device of. The terminal device can be a handheld terminal, a customer premise equipment (CPE) notebook computer, a subscriber unit, a cellular phone, a smart phone, a wireless data card, a personal digital assistant (personal digital assistant (PDA) computer, tablet computer, wireless modem (modem), handheld device (handheld), laptop computer (laptop computer), session initiation protocol (SIP) phone, cordless phone Or wireless local loop (wireless local loop, WLL) station, machine type communication (machine type communication, MTC) terminal, wearable device (such as smart watch, smart bracelet, pedometer, etc.), vehicle equipment (such as car, Bicycles, electric vehicles, airplanes, ships, trains, high-speed rail, etc.), virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control (industrial control), smart home equipment ( Such as refrigerators, TVs, air conditioners, electric meters, etc.), intelligent robots, workshop equipment, wireless terminals in self driving, wireless terminals in remote medical surgery, and wireless terminals in smart grids Terminals, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes, flying devices (such as intelligent robots, hot air balloons, drones, aircraft, etc.) or other devices that can access the network.

The network device 102 is a device capable of communicating with the terminal device 101, and may be a base station, a relay station, or an access point. The base station can be a base transceiver station (BTS) in a global system for mobile communication (GSM) or code division multiple access (CDMA) network, or a broadband code division A node base station (nodebase station, NB) in multiple access (wideband code division multiple access, WCDMA), may also be an evolved (evolutional) NB (eNB or eNodeB) in long term evolution (long term evolution, LTE), and may also It is a wireless controller in the cloud radio access network (CRAN) scenario, it can also be a base station device in a 5G network or a network device in a future evolved PLMN network, or it can be a wearable device or a vehicle-mounted device .

It should be noted that the network architecture shown in Figure 1 is not limited to include only the network devices and terminal devices shown in the figure, and may also include other network devices or terminal devices not shown in the figure, and the specific application is here No longer list them one by one.

In order to better understand the embodiment of the present application, the related technologies of the embodiment of the present application are firstly described below.

In the single carrier configuration, the protocol supports 100MHz/component carrier (component carrier, CC), 200MHz/CC, and 400MHz/CC carrier bandwidth configurations.

The modulation and demodulation modes, time-frequency resources, and/or modulation and demodulation waveforms used by the terminal equipment are different, and the MPR of the terminal equipment may be different. In the case that the bandwidth (bandwidth, BW) used by the terminal equipment is less than or equal to 200MHz, the MPR of the terminal equipment can be as shown in Table 1:

Table 1

When the BW used by the terminal equipment is 400MHz, the MPR of the terminal equipment can be shown in Table 2:

Table 2

It can be seen from Table 1 and Table 2 that, in the case of allocating the same time-frequency resource to the terminal equipment, such as the same RB position, the modulation and demodulation waveforms adopted by the terminal equipment are different, and the MPR of the terminal equipment may be different. For example, under the premise of allocating the same RB position for the terminal equipment, the MPR of the terminal equipment using the DFT-S-OFDM waveform as the modulation and demodulation waveform is smaller than the MPR of the terminal equipment using the CP-OFDM waveform as the modulation and demodulation waveform, Therefore, using the DFT-S-OFDM waveform as the modulation and demodulation waveform can increase the channel coverage gain of a physical uplink shared channel (PUSCH) by 2-3 dB. It should be understood that the modulation and demodulation modes used by the terminal devices in the foregoing cases may be the same or different.

It can be seen from Table 1 and Table 2 that, in the case of allocating the same time-frequency resource to the terminal equipment, such as the same RB position, the modulation and demodulation mode adopted by the terminal equipment is different, and the MPR of the terminal equipment may be different. For example, in the case that other information adopted by the terminal equipment is the same, when the terminal equipment adopts QPSK, 16QAM or 64QAM, the MPR of the terminal equipment is different.

It can be seen from Table 1 and Table 2 that the MPR of the terminal equipment may be different due to the different time-frequency resources allocated to the terminal equipment. For example, when the terminal equipment adopts DFT-S-OFDM waveform, as well as QPSK or BPSK, different RB positions (edge RB or center RB) can be selected to make the MPR of the terminal equipment 0, which can further make the PUSCH channel coverage The gain is increased by 2~3dB.

It can be known from Table 1 and Table 2 that the MPR of the terminal equipment may be different due to different capability information of the terminal equipment. The capability information of the terminal device may include the BW, power level, etc. of the terminal device.

In addition, in the case of carrier aggregation (carrier aggregation, CA), the MPR of the terminal equipment may be different due to different modulation and demodulation methods, time-frequency resources and/or modulation and demodulation waveforms used by the terminal equipment. The capability information of the terminal equipment is different, and the MPR of the terminal equipment may be different.

It should be understood that, in scenarios other than the single carrier and CA scenarios, the MPR of the terminal device may be different due to different modulation and demodulation modes, time-frequency resources and/or modulation and demodulation waveforms used by the terminal device. The capability information of the terminal equipment is different, and the MPR of the terminal equipment may be different.

The network device scheduling behavior is a priori behavior. When the MPR of the terminal device is greater than 0, and the network device does not know the MPR of the terminal device, the SINR of the uplink signal of the terminal device is small, so the scheduling behavior of the network device cannot achieve Optimum, resulting in poor air interface performance gain. For example, in a frequency selection scenario, time-frequency resources (central RBs or edge RBs) are different and spectrum efficiencies are different, so air interface performance gains may be different. For another example, in a non-frequency selection scenario, time-frequency resources are different, and adaptive modulation and coding (AMC) gains are different, so that air interface performance gains may be different. For another example, the modulation and demodulation methods are different, the selected modulation and coding scheme (MCS) is different, and the error probability of the cyclic redundancy check (CRC) is different, so that the performance gain of the air interface may be different.

Therefore, how the network equipment obtains the MPR of the terminal equipment has become an urgent technical problem to be solved.

In order to better understand the embodiments of the present application, some terms used in the embodiments of the present application may be introduced first.

The maximum transmit power is the maximum transmit power supported by the terminal device.

The expected transmit power is the expected transmit power of the terminal equipment, which can be determined according to the path loss, modulation and coding scheme (modulation and coding scheme, MCS), maximum transmit power, etc.

The MPR is the difference between the maximum transmit power corresponding to the carrier of the terminal device and the actual transmit power.

The actual transmit power is the actual transmit power when the terminal equipment is in use.

The power headroom is the power headroom corresponding to the terminal device, and is the difference between the maximum transmit power corresponding to the terminal device and the expected transmit power. The terminal device can report the power headroom to the network device through the PHR.

Based on the foregoing network architecture, please refer to FIG. 2 , which is a schematic flowchart of a communication method disclosed in an embodiment of the present application. As shown in Fig. 2, the communication method may include the following steps.

201. The terminal device sends the first PHR including the first power headroom to the network device.

Correspondingly, the network device receives the first PHR including the first power headroom from the terminal device.

The terminal device may send the first PHR to the network device in the reporting period of the PHR, that is, may report the first PHR to the network device in the reporting period of the PHR. The first PHR may include a first power headroom. The first power headroom is a power headroom corresponding to the first resource and the first modulation and demodulation mode. It can be seen that the terminal device may actively report the first PHR to the network device. The first resource may be a time-domain resource, may also be a frequency-domain resource, or may be a time-frequency resource. The resource used by the first PHR is the first resource, and it can be understood that the terminal device sends the first PHR to the network device through the first resource. The modulation and demodulation mode used by the first PHR is the first modulation and demodulation mode, and the first PHR may be a PHR modulated by using the first modulation and demodulation mode.

The terminal device may also report the first PHR to the network device when the network device needs the terminal device to report the first PHR, that is, the terminal device may passively report the first PHR to the network device. In a case where the network device needs the MPR of the terminal device, the network device may send the first indication information to the terminal device. The first indication information may indicate the first resource, the first modulation and demodulation mode, and report the power headroom corresponding to the first resource and the first modulation and demodulation mode. In addition, the first indication information may also indicate the first modulation and demodulation waveform. The first modulation and demodulation waveform may be a DFT-S-OFDM waveform, may also be a CP-OFDM waveform, or may be other waveforms that can be used for modulation and demodulation.

The network device may send the first indication information to the terminal device according to the scheduling period of the PHR. The network device may send the first indication information to the terminal device M time units before the arrival of a PHR period, so that the terminal device may report the first PHR to the network device when the PHR period arrives according to the first indication information. The time unit may be a slot, or a symbol, or a mini-slot, or other information representing time information. M is an integer greater than or equal to 1. For example, the network device may send the terminal device to the terminal device one time slot before the arrival of the PHR period.

After receiving the first indication information from the network device, the terminal device may determine the first power headroom according to the first resource and the first modulation and demodulation mode. The manner of determining the first power headroom is the same as that in the existing power control, and will not be described in detail here.

202. The terminal device sends a second PHR including the second power headroom to the network device.

Correspondingly, the network device receives the second PHR including the second power headroom from the terminal device.

The terminal device may send the second PHR to the network device during the reporting period of the PHR, that is, may report the second PHR to the network device during the reporting period of the PHR. The second PHR may include a second power headroom. The second power headroom is a power headroom corresponding to the second resource and the second modulation and demodulation mode. It can be seen that the terminal device may actively report the second PHR to the network device. The second resource may be a time-domain resource, may also be a frequency-domain resource, or may be a time-frequency resource. The resource used by the second PHR is the first resource, and it can be understood that the terminal device sends the second PHR to the network device through the second resource. The modulation and demodulation mode used by the second PHR is the second modulation and demodulation mode, and the second PHR may be a PHR modulated by using the second modulation and demodulation mode.

The terminal device may also report the second PHR to the network device when the network device needs the terminal device to report the second PHR, that is, the terminal device may passively report the second PHR to the network device. In a case where the network device needs the MPR of the terminal device, the network device may send the second indication information to the terminal device. The second indication information may indicate the second resource, the second modulation and demodulation mode, and report the power headroom corresponding to the second resource and the second modulation and demodulation mode. In addition, the second indication information may also indicate the second modulation and demodulation waveform. The second modulation and demodulation waveform may be a DFT-S-OFDM waveform, may also be a CP-OFDM waveform, or may be other waveforms that can be used for modulation and demodulation.

The network device may send the second indication information to the terminal device according to the scheduling period of the PHR. The network device may send the second indication information to the terminal device N time units before a PHR period arrives, so that the terminal device may report the second PHR to the network device in this PHR period according to the second indication information. N is an integer greater than or equal to 1. M and N may be the same or different. For example, the network device may send the terminal device to the terminal device one time slot before the arrival of the PHR period.

After receiving the second indication information from the network device, the terminal device may determine the second power headroom according to the second resource and the second modulation and demodulation mode. The method of determining the second power headroom is the same as that in the existing power control, and will not be described in detail here.

It should be understood that the time for the network device to send the first indication information and the second time information is different, and the PHR periods for the terminal device to report the first PHR and the second PHR are different.

In one case, the first modulation and demodulation mode is the same as the second modulation and demodulation mode, and the first resource is different from the second resource. In the case that the first resource and the second resource are time-domain resources, the first resource is different from the second resource, and it can be understood that the time-domain resources of the first resource and the second resource are different. In a case where the first resource and the second resource are frequency domain resources, the first resource is different from the second resource, and it may be understood that the frequency domain resources of the first resource and the second resource are different. In the case that the first resource and the second resource are time-frequency resources, the first resource is different from the second resource, which can be understood as the time domain resources of the first resource and the second resource are different, or that the first resource and the second resource are different. The frequency domain resources of the two resources are different, and it can also be understood that the time domain resources and the frequency domain resources of the first resource and the second resource are different.

In an embodiment, the first resource may be an edge RB, and the second resource may be a central RB. In another embodiment, the first resource may be a central RB, and the second resource may be an edge RB. For example, according to Table 1 and Table 2, it can be seen that the first modulation and demodulation mode and the second modulation and demodulation mode can be Pi/2BPSK or QPSK; the first modulation and demodulation waveform is the same as the second modulation and demodulation waveform, and can be It is DFT-S-OFDM waveform. In other cases, the first modulation and demodulation mode and the second modulation and demodulation mode may also be 16QAM or 64QAM.

The first indication information and the second indication information may be carried in DCI 0-0 or DCI in DCI 0-0 format. The network device may send the first DCI0-0 to the terminal device, where the first DCI0-0 may include or carry the first resource and the first modulation and demodulation mode. For example, the first DCI 0-0 may include or carry QPSK and a central RB. The network device may send the second DCI 0-0 to the terminal device, and the second DCI 0-0 may include or carry the second resource and the second modulation and demodulation mode. For example, the second DCI 0-0 may include or carry QPSK and edge RBs. At the same time, the first DCI0-0 and the second DCI0-0 also have the meaning of instructing the terminal equipment to switch the modulation and demodulation waveform to the DFT-S-OFDM waveform.

It should be understood that the protocol stipulates that in a fallback (fallback) scenario of waveform switching, the network device may send the first indication information and the second indication information to the terminal device through the DCI0-0. In other scenarios, the network device may switch the waveform through reconfiguration signaling, that is, send the first indication information and the second indication information to the terminal device through the reconfiguration signaling, and instruct the terminal device to switch the modulation and demodulation waveform.

In another case, the first modulation and demodulation mode is different from the second modulation and demodulation mode, and the first resource is the same as the second resource. For example, according to Table 1 and Table 2, it can be seen that the first modulation and demodulation method can be QPSK, and the second modulation and demodulation method can be 16QAM; the first modulation and demodulation method can be QPSK, and the second modulation and demodulation method can be 64QAM; The first modulation and demodulation method can be 16QAM, and the second modulation and demodulation method can be 16QAM; the first resource and the second resource can be edge RB, or central RB; the first modulation and demodulation waveform and the second modulation and demodulation The waveform may be a DFT-S-OFDM waveform or a CP-OFDM waveform.

The first indication information and the second indication information may be carried in the MAC CE, may also be carried in the DCI, and may also be carried in the RRC signaling. That is, the network device may send the first MAC CE, DCI or RRC signaling to the terminal device, and the first MAC CE, DCI or RRC signaling may include or carry the first resource and the first modulation and demodulation mode. For example, the first MAC CE, DCI or RRC signaling may include or carry QPSK and edge RBs (or central RBs). The network device may send the second MAC CE, DCI or RRC signaling to the terminal device, and the second MAC CE, DCI or RRC signaling may include or carry the second resource and the second modulation and demodulation mode. For example, the second MAC CE, DCI or RRC signaling may include or carry 16QAM and edge RBs (or central RBs). Meanwhile, the first MAC CE, DCI or RRC signaling and the second MAC CE, DCI or RRC signaling may also include or carry a DFT-S-OFDM waveform or a CP-OFDM waveform.

203. The network device determines the MPR of the terminal device according to the first power headroom and the second power headroom.

After receiving the first PHR from the terminal device and receiving the second PHR from the terminal device, the network device may determine the MPR of the terminal device according to the first power headroom and the second power headroom. The network device may determine the absolute value of the difference between the first power headroom and the second power headroom as the MPR of the terminal device. Afterwards, the network device can perform scheduling according to the MPR of the terminal device.

Based on the above network architecture, please refer to FIG. 3 , which is a schematic flowchart of another communication method disclosed in an embodiment of the present application. As shown in Fig. 3, the communication method may include the following steps.

301. The network device determines that PHR scheduling is required, and the first PHR period is about to arrive.

302. The network device sends the first DCI0-0 to the terminal device.

Correspondingly, the terminal device receives the first DCI0-0 from the network device.

After the network device determines that power detection is required, that is, after determining that PHR scheduling is required, it can judge whether the first PHR cycle is about to arrive, and after judging that the first PHR cycle is about to arrive, it can send the first DCI0-0 to the terminal device, that is, the next Send the DCI0-0 switching waveform to let the terminal equipment switch the modulation and demodulation waveform to the DFT-S-OFDM waveform. The first DCI 0-0 may include or carry the first indication information.

Wherein, for the detailed description of step 302, reference may be made to the relevant description in one case in steps 201 and 202.

Power detection is the behavior of the network device to detect the MPR of the terminal device. It should be understood that not every network device needs to perform power detection when reporting the PHR period. It may be detected only once, or may be detected at the minute level, or at the hourly level, or may be detected in other ways. The time when the network device detects the power must be when the PHR is reported, but the power detection does not necessarily occur when the PHR is reported.

303. The terminal device sends the first PHR to the network device.

After receiving the first DCI0-0 from the network device, the terminal device may first switch the modulation and demodulation waveform to a DFT-S-OFDM waveform, and then determine the first power margin according to the first resource and the first modulation and demodulation mode. amount, and a first PHR may be sent to the network device. The resources and the modulation and demodulation mode used by the first PHR are the resources and the modulation and demodulation mode indicated by the first indication information in the first DCI0-0.

304. The network device determines that PHR scheduling is required, and the second PHR period is about to arrive.

305. The network device sends the second DCI0-0 to the terminal device.

Correspondingly, the terminal device receives the second DCI0-0 from the network device.

After the network device determines that power detection is required, that is, after determining that PHR scheduling is required, it can judge whether the second PHR cycle is about to arrive, and after judging that the second PHR cycle is about to arrive, it can send the second DCI0-0 to the terminal device, that is, the next Send the DCI0-0 switching waveform to let the terminal equipment switch the modulation and demodulation waveform to the DFT-S-OFDM waveform. The second DCI 0-0 may include or carry second indication information. The first PHR cycle and the second PHR cycle are two different PHR cycles in China. The first PHR period may be earlier than the second PHR period, or may be later than the second PHR period. The first PHR period may or may not be adjacent to the second PHR period.

Wherein, for the detailed description of step 305, reference may be made to the relevant description in step 202.

It should be understood that one power detection of the network device includes sending the first DCI0-0 to the terminal device, and sending the second DCI0-0 to the terminal device.

306. The terminal device sends the second PHR to the network device.

After the terminal device receives the second DCI0-0 from the network device, it can first switch the modulation and demodulation waveform to the DFT-S-OFDM waveform, and then determine the second power margin according to the second resource and the second modulation and demodulation mode. amount, and a second PHR may be sent to the network device. The resources and the modulation and demodulation mode used by the second PHR are the resources and the modulation and demodulation mode indicated by the second indication information in the second DCI0-0.

307. The network device determines the MPR of the terminal device according to the first power headroom and the second power headroom.

Wherein, the detailed description of step 307 may refer to step 203 .

It should be understood that the communication method shown in FIG. 3 is a specific application of the communication method shown in FIG. 2 .

Based on the foregoing network architecture, please refer to FIG. 4 , which is a schematic flowchart of another communication method disclosed in an embodiment of the present application. As shown in Fig. 4, the communication method may include the following steps.

401. The network device sends the first MAC CE, the first DCI, or the first RRC signaling to the terminal device.

In the case where the network device needs to schedule data packets, the network device may send the first MAC CE, the first DCI or the first RRC signaling to the terminal device. The first MAC CE, the first DCI or the first RRC signaling may include first indication information.

402. The terminal device sends a first PHR to the network device.

After receiving the first MAC CE, the first DCI or the first RRC signaling from the network device, the terminal device may send the first PHR to the network device according to the first indication information.

For related descriptions of step 401 and step 402, reference may be made to step 201.

403. The network device sends the second MAC CE, the second DCI, or the second RRC signaling to the terminal device.

In the case that the network equipment needs to schedule data packets, the network equipment can send the second MAC CE, the second DCI or the second RRC signaling to the terminal equipment. The second MAC CE, the second DCI or the second RRC signaling may include second indication information.

404. The terminal device sends the second PHR to the network device.

After receiving the second MAC CE, the second DCI or the second RRC signaling from the network device, the terminal device may send the second PHR to the network device according to the second indication information.

For related descriptions of step 403 and step 404, reference may be made to step 202.

In addition, reference may be made to related descriptions in another case in step 202 .

405. The network device determines the MPR of the terminal device according to the first power headroom and the second power headroom.

Wherein, the detailed description of step 405 may refer to step 203 .

It should be understood that the communication method shown in FIG. 4 is a specific application of the communication method shown in FIG. 2 .

Based on the foregoing network architecture, please refer to FIG. 5 , which is a schematic flowchart of another communication method disclosed in an embodiment of the present application. As shown in Fig. 5, the communication method may include the following steps.

501. The network device sends indication information to the terminal device.

Correspondingly, the terminal device receives the indication information from the network device.

502. The terminal device sends the first MPR to the network device according to the indication information.

Correspondingly, the network device receives the first MPR from the terminal device.

When the network device needs to perform power detection, it may send indication information to the terminal device, where the indication information is used to instruct the terminal device to report the MPR.

After receiving the indication information from the network device, the terminal device may first determine the first MPR according to the indication information, and then may send the first MPR to the network device.

In one case, the indication information may be carried in the RRC signaling, that is, the network device may send the RRC signaling to the terminal device, and the RRC signaling may include or carry the indication information. When the terminal device accesses the network device, the network device may report the MPR of the terminal device through RRC signaling. The network device may instruct the terminal device to report MPRs corresponding to different modulation and demodulation modes and different resources through RRC signaling. The terminal device may report these MPRs multiple times, and at this time, the first MPR may include one MPR. The terminal device may also report these MPRs once. In this case, the first MPR includes multiple MPRs.

In another case, the indication information may be carried in DCI signaling, that is, the network device may send DCI to the terminal device, and the DCI may include or carry indication information. The network device may instruct the terminal device to report MPRs corresponding to different modulation and demodulation modes and different resources through the DCI. The network device may perform multiple indications. At this time, the network device may send multiple DCIs to the terminal device. Correspondingly, the terminal device reports one MPR for each DCI, that is, the first MPR includes one MPR. The network device can also complete it through one indication. At this time, the network device can send a DCI to the terminal device. Correspondingly, the terminal device can report multiple MPRs according to the indication information in the DCI, that is, the first MPR includes multiple MPRs.

In yet another case, the indication information may be carried in the MAC CE, that is, the network device may send the MAC CE to the terminal device, and the MAC CE may include or carry the indication information. The network device can instruct the terminal device to report the MPR corresponding to different modulation and demodulation modes and different resources through MAC CE. The network device can complete by multiple instructions. At this time, the network device can send multiple MAC CEs to the terminal device. Correspondingly, the terminal device reports one MPR for each MAC CE, that is, the first MPR includes one MPR. The network device can also be completed by one indication. At this time, the network device can send a MAC CE to the terminal device. Correspondingly, the terminal device can report multiple MPRs according to the indication information in the MAC CE, that is, the first MPR includes multiple MPR.

It should be understood that the functions performed by the network device in the above communication method may also be performed by a module (for example, a chip) in the network device, and the functions performed by the terminal device in the above communication method may also be performed by a module (for example, a chip) in the terminal device. chip) to execute.

Based on the foregoing network architecture, please refer to FIG. 6 , which is a schematic structural diagram of a communication device disclosed in an embodiment of the present application. As shown in FIG. 6 , the communication device may include a receiving unit 601 , a determining unit 602 and a sending unit 603 .

In one case, the communication device may be a network device, or a module (for example, a chip) in the network device. in:

A receiving unit 601, configured to receive a first PHR from a terminal device, where the first PHR includes a first power headroom;

The receiving unit 601 is further configured to receive a second PHR from the terminal device, the second PHR includes a second power headroom, and the resources or modulation and demodulation methods used by the first PHR and the second PHR are different;

The determining unit 602 is configured to determine the MPR of the terminal device according to the first power headroom and the second power headroom.

In an embodiment, the determining unit 602 is specifically configured to determine an absolute value of a difference between the first power headroom and the second power headroom as the MPR of the terminal device.

In one embodiment, the sending unit 603 is configured to send first indication information to the terminal device, where the first indication information is used to indicate the first resource, the first modulation and demodulation mode, and report the first resource and the first modulation and demodulation mode Corresponding power headroom, the first power headroom is the power headroom corresponding to the first resource and the first modulation and demodulation mode.

The sending unit 603 is further configured to send second indication information to the terminal device, where the second indication information is used to indicate the second resource, the second modulation and demodulation mode, and report the power headroom corresponding to the second resource and the second modulation and demodulation mode , the second power headroom is the power headroom corresponding to the second resource and the second modulation and demodulation mode.

In an embodiment, the sending unit 603 sending the first indication information to the terminal device includes:

sending the first indication information to the terminal device according to the scheduling period of the PHR;

The sending unit 603 sending the second indication information to the terminal device includes:

Send the second indication information to the terminal device according to the scheduling period of the PHR.

In an embodiment, the first modulation and demodulation mode is the same as the second modulation and demodulation mode, and the first resource is different from the second resource.

In an embodiment, the first resource is an edge RB, and the second resource is a central RB; or the first resource is a central RB, and the second resource is an edge RB.

In an embodiment, the first indication information and the second indication information are carried in DCI0-0.

In an embodiment, the first modulation and demodulation mode is different from the second modulation and demodulation mode, and the first resource is the same as the second resource.

In one embodiment, the first indication information and the second indication information are carried in MAC CE, DCI or RRC signaling.

In one embodiment, the first resource and the second resource are edge RBs or central RBs.

More detailed descriptions of the receiving unit 601, the determining unit 602, and the sending unit 603 can be directly obtained by referring to the relevant descriptions of the network devices in the method embodiments shown in FIGS. 2-4 above, and will not be repeated here.

In another case, the communication device may be a terminal device, or may be a module (for example, a chip) in the terminal device. in:

A sending unit 603, configured to send a first PHR to the network device, where the first PHR includes a first power headroom;

The sending unit 603 is further configured to send a second PHR to the network device, the second PHR includes a second power headroom, and resources or modulation and demodulation modes used by the first PHR and the second PHR are different.

In one embodiment, the receiving unit 601 is configured to receive first indication information from the network device, where the first indication information is used to indicate the first resource, the first modem mode, and report the first resource and the first modem The power headroom corresponding to the mode;

A determining unit 602, configured to determine a first power headroom according to the first resource and the first modulation and demodulation mode;

The receiving unit 601 is further configured to receive second indication information from the network device, where the second indication information is used to indicate the second resource, the second modulation and demodulation mode, and report the power margin corresponding to the second resource and the second modulation and demodulation mode. quantity;

The determining unit 602 is further configured to determine a second power headroom according to the second resource and the second adjusted demodulation mode.

More detailed descriptions of the receiving unit 601, the determining unit 602, and the sending unit 603 can be directly obtained by referring to the relevant descriptions of the terminal device in the method embodiments shown in FIGS. 2-4 above, and will not be repeated here.

It should be understood that the communication device shown in FIG. 6 is a connection mode of the receiving unit 601 , the determining unit 602 and the sending unit 603 . For example, the receiving unit 601 may be connected to the determining unit 602 , and the determining unit 602 may be connected to the sending unit 603 .

It should be understood that the receiving unit and the unit may be collectively referred to as a transceiver unit.

Based on the foregoing network architecture, please refer to FIG. 7 , which is a schematic structural diagram of a communication device disclosed in an embodiment of the present application. As shown in FIG. 7 , the communication device may include a receiving unit 701 and a sending unit 702 .

The sending unit 702 is configured to send indication information to the terminal device, where the indication information is used to indicate to report the MPR.

The receiving unit 701 is configured to receive a first MPR from a terminal device.

As a possible implementation manner, the sending unit 702 is specifically configured to send RRC signaling to the terminal device, where the RRC signaling includes indication information.

As a possible implementation manner, the sending unit 702 is specifically configured to send DCI to the terminal device, where the DCI includes indication information.

As a possible implementation manner, the sending unit 702 is specifically configured to send a MAC CE to the terminal device, where the MAC CE includes indication information.

More detailed descriptions about the above-mentioned receiving unit 701 and sending unit 702 can be directly obtained by referring to the related description of the network device in the method embodiment shown in FIG. 5 , and will not be repeated here.

The receiving unit 701 is configured to receive indication information from a network device, where the indication information is used to indicate to report an MPR.

The sending unit 702 is configured to send the first MPR to the network device according to the indication information.

As a possible implementation manner, the receiving unit 701 is specifically configured to receive RRC signaling from a network device, where the RRC signaling includes indication information.

As a possible implementation manner, the receiving unit 701 specifically receives the DCI from the network device, where the DCI includes indication information.

As a possible implementation manner, the receiving unit 701 specifically receives the MAC CE from the network device, and the MAC CE includes indication information.

More detailed descriptions about the above-mentioned receiving unit 701 and sending unit 702 can be directly obtained by referring to the related description of the terminal device in the method embodiment shown in FIG. 5 , and will not be repeated here.

Based on the foregoing network architecture, please refer to FIG. 8 , which is a schematic structural diagram of another communication device disclosed in an embodiment of the present application. As shown in FIG. 8 , the communication device may include a processor 801 , a memory 802 , a transceiver 803 and a bus 804 . The memory 802 may exist independently, and may be connected to the processor 801 through the bus 804 . The memory 802 can also be integrated with the processor 801. Among them, the bus 804 is used to realize the connection between these components. In one case, as shown in FIG. 8 , the transceiver 803 may include a transmitter 8031 , a receiver 8032 and an antenna 8033 . In another case, the transceiver 803 may include a transmitter (ie, an output interface) and a receiver (ie, an input interface). A transmitter may include a transmitter and an antenna, and a receiver may include a receiver and an antenna.

The communication device may be a terminal device, or a module in the terminal device; the communication device may be a network device, or a module block in the network device. When the computer program instructions stored in the memory 802 are executed, the processor 801 is used to control the receiving unit 601 and the sending unit 603 to perform the operations performed in the above embodiments, and the processor 801 is also used to execute the determining unit 602 in the above embodiments For the operations to be performed, the transceiver 803 is configured to perform the operations performed by the receiving unit 601 and the sending unit 603 in the foregoing embodiments. The above-mentioned communication device may also be used to execute various methods performed by the terminal device or network device in the above-mentioned method embodiments in FIGS. 2-4 , which will not be repeated here.

The communication device may be a terminal device, or a module in the terminal device; the communication device may be a network device, or a module block in the network device. When the computer program instructions stored in the memory 802 are executed, the processor 801 is used to control the receiving unit 701 and the sending unit 702 to perform the operations performed in the above embodiments, and the transceiver 803 is used to execute the receiving unit 701 and the sending unit in the above embodiments Operation performed by unit 702. The above-mentioned communication device may also be used to execute various methods executed by the terminal device or network device in the above-mentioned method embodiment in FIG. 5 , which will not be repeated here.

Based on the foregoing network architecture, please refer to FIG. 9 , which is a schematic structural diagram of another communication device disclosed in an embodiment of the present application. As shown in FIG. 9 , the communication device may include an input interface 901 , a logic circuit 902 and an output interface 903 . The input interface 901 is connected to the output interface 903 through a logic circuit 902 . Wherein, the input interface 901 is used to receive information from other communication devices, and the output interface 903 is used to output, schedule or send information to other communication devices. The logic circuit 902 is configured to perform operations other than the operations of the input interface 901 and the output interface 903 , such as implementing the functions implemented by the processor 801 in the above-mentioned embodiments. Wherein, the communication device may be a terminal device (or a module in the terminal device), or may be a network device (or a module in the network device). Wherein, more detailed descriptions about the input interface 901, the logic circuit 902, and the output interface 903 can be directly obtained by referring to the related descriptions of the terminal device or the network device in the foregoing method embodiments, and details are not repeated here.

The embodiment of the present application also discloses a computer-readable storage medium, on which instructions are stored, and when the instructions are executed, the methods in the foregoing method embodiments are executed.

The embodiment of the present application also discloses a computer program product including computer instructions, when the computer instructions are executed, the methods in the above method embodiments are executed.

The embodiment of the present application also discloses a communication system, which may include a network device and a terminal device. For a specific description, reference may be made to the communication methods shown in FIGS. 2-5 .

The specific implementation manners described above have further described the purpose, technical solutions and beneficial effects of the application in detail. It should be understood that the above descriptions are only specific implementation modes of the application and are not intended to limit the scope of the application. Scope of protection: All modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of this application shall be included within the scope of protection of this application.

Claims

A communication method, characterized in that, comprising:

receiving a first power headroom report PHR from a terminal device, where the first PHR includes a first power headroom;

Receive a second PHR from the terminal device, where the second PHR includes a second power headroom, and the resources or modulation and demodulation methods used by the first PHR and the second PHR are different;

Determine the maximum back-off power MPR of the terminal device according to the first power headroom and the second power headroom.
The method according to claim 1, wherein the determining the MPR of the terminal device according to the first power headroom and the second power headroom comprises:

determining the absolute value of the difference between the first power headroom and the second power headroom as the MPR of the terminal device.
The method according to claim 1 or 2, characterized in that the method further comprises:

Sending first indication information to the terminal device, where the first indication information is used to indicate the first resource, the first modulation and demodulation mode, and report the power margin corresponding to the first resource and the first modulation and demodulation mode. amount, the first power headroom is the power headroom corresponding to the first resource and the first modulation and demodulation mode;

Sending second indication information to the terminal device, where the second indication information is used to indicate a second resource, a second modulation and demodulation mode, and report a power margin corresponding to the second resource and the second modulation and demodulation mode. The second power headroom is the power headroom corresponding to the second resource and the second modulation and demodulation mode.
The method according to claim 3, wherein the sending the first indication information to the terminal device comprises:

Sending first indication information to the terminal device according to the scheduling period of the PHR;

The sending the second indication information to the terminal device includes:

Sending second indication information to the terminal device according to the scheduling period of the PHR.
A communication method, characterized in that, comprising:

sending a first power headroom report PHR to a network device, where the first PHR includes a first power headroom;

Sending a second PHR to the network device, where the second PHR includes a second power headroom, and resources or modulation and demodulation modes used by the first PHR and the second PHR are different.
The method according to claim 5, wherein the method further comprises:

receiving first indication information from the network device, where the first indication information is used to indicate a first resource, a first modulation and demodulation mode, and report power corresponding to the first resource and the first modulation and demodulation mode margin;

Determine the first power headroom according to the first resource and the first modulation and demodulation mode;

receiving second indication information from the network device, where the second indication information is used to indicate a second resource, a second modulation and demodulation mode, and report power corresponding to the second resource and the second modulation and demodulation mode margin;

Determine the second power headroom according to the second resource and the second adjusted demodulation mode.
The method according to claim 3, 4 or 6, wherein the first modulation and demodulation mode is the same as the second modulation and demodulation mode, and the first resource is different from the second resource.
The method according to claim 7, wherein the first resource is an edge resource block RB, and the second resource is a central RB; or the first resource is a central RB, and the second resource is an edge RB.
The method according to claim 7 or 8, wherein the first indication information and the second indication information are carried in downlink control information DCI0-0.
The method according to claim 3, 4 or 6, wherein the first modulation and demodulation mode is different from the second modulation and demodulation mode, and the first resource is the same as the second resource.
The method according to claim 10, wherein the first indication information and the second indication information are carried in a medium access control element MAC CE, downlink control information DCI or radio resource control RRC signaling.
The method according to claim 10 or 11, wherein the first resource and the second resource are edge RBs or central RBs.
A communication device, characterized by comprising:

a receiving unit, configured to receive a first power headroom report PHR from a terminal device, where the first PHR includes a first power headroom;

The receiving unit is further configured to receive a second PHR from the terminal device, the second PHR includes a second power headroom, and the resources or modulation and demodulation methods used by the first PHR and the second PHR are different;

A determining unit, configured to determine a maximum backoff power MPR of the terminal device according to the first power headroom and the second power headroom.
The device according to claim 13, wherein the determining unit is specifically configured to determine the absolute value of the difference between the first power headroom and the second power headroom as the terminal device MPR.
The device according to claim 13 or 14, wherein the device further comprises:

a sending unit, configured to send first indication information to the terminal device, where the first indication information is used to indicate a first resource, a first modulation and demodulation mode, and report the first resource and the first modulation and demodulation mode A power headroom corresponding to a mode, where the first power headroom is a power headroom corresponding to the first resource and the first modulation and demodulation mode;

The sending unit is further configured to send second indication information to the terminal device, where the second indication information is used to indicate a second resource, a second modulation and demodulation mode, and report the second resource and the second A power headroom corresponding to a modulation and demodulation mode, where the second power headroom is a power headroom corresponding to the second resource and the second modulation and demodulation mode.
The apparatus according to claim 15, wherein the sending unit sending the first indication information to the terminal device comprises:

Sending first indication information to the terminal device according to the scheduling period of the PHR;

The sending unit sending the second indication information to the terminal device includes:

Sending second indication information to the terminal device according to the scheduling period of the PHR.
A communication device, characterized by comprising:

A sending unit, configured to send a first power headroom report PHR to a network device, where the first PHR includes a first power headroom;

The sending unit is further configured to send a second PHR to the network device, the second PHR includes a second power headroom, and the resources or modulation and demodulation methods used by the first PHR and the second PHR are different .
The device according to claim 17, further comprising:

A receiving unit, configured to receive first indication information from the network device, where the first indication information is used to indicate a first resource, a first modulation and demodulation mode, and report the first resource and the first modulation and demodulation mode The power headroom corresponding to the adjustment mode;

a determining unit, configured to determine the first power headroom according to the first resource and the first modulation and demodulation mode;

The receiving unit is further configured to receive second indication information from the network device, where the second indication information is used to indicate a second resource, a second modulation and demodulation mode, and report the second resource and the first 2. The power headroom corresponding to the mode of modulation and demodulation;

The determining unit is further configured to determine the second power headroom according to the second resource and the second adjusted demodulation mode.
The device according to claim 15, 16 or 18, wherein the first modulation and demodulation mode is the same as the second modulation and demodulation mode, and the first resource is different from the second resource.
The device according to claim 19, wherein the first resource is an edge resource block RB, and the second resource is a central RB; or the first resource is a central RB, and the second resource is an edge RB.
The device according to claim 19 or 20, wherein the first indication information and the second indication information are carried in downlink control information DCI0-0.
The device according to claim 15, 16 or 18, wherein the first modulation and demodulation mode is different from the second modulation and demodulation mode, and the first resource is the same as the second resource.
The device according to claim 22, wherein the first indication information and the second indication information are carried in a medium access control element MAC CE, downlink control information DCI or radio resource control RRC signaling.
The apparatus according to claim 22 or 23, wherein the first resource and the second resource are edge RBs or central RBs.
A communication device, characterized in that it includes a processor and a memory, the processor is coupled to the memory, and the processor invokes the computer program stored in the memory to implement any one of claims 1-4, 7-12 the method described.
A communication device, characterized in that it includes a processor and a memory, the processor is coupled to the memory, and the processor invokes a computer program stored in the memory to implement the method according to any one of claims 5-12 .
A communication system, characterized by comprising the device as claimed in claim 25 and the device as claimed in claim 26.
A computer-readable storage medium, characterized in that a computer program or computer instruction is stored in the computer-readable storage medium, and when the computer program or computer instruction is executed, any one of claims 1-12 is realized the method described.
A computer program product, characterized in that the computer program product includes computer program code, and when the computer program code is executed, the method according to any one of claims 1-12 is implemented.