CN113596976A

CN113596976A - Data transmission method and communication device

Info

Publication number: CN113596976A
Application number: CN202010368331.6A
Authority: CN
Inventors: 张萌; 刘烨; 郭志恒; 徐舟; 张立文
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-11-02
Also published as: WO2021218686A1

Abstract

The application discloses a data transmission method and a communication device, relates to the technical field of communication, and solves the problem that the existing power back-off scheme cannot meet the data transmission requirements of terminal equipment in different communication scenes. The specific scheme is as follows: the terminal equipment determines a target power back-off parameter corresponding to the current judging condition of the terminal equipment from N groups of power back-off parameters according to the current judging condition, wherein the N groups of power back-off parameters and N judging conditions have specific corresponding relations, the power back-off parameters are parameters used when the terminal equipment carries out power back-off, and N is an integer greater than 1; and the terminal equipment performs power backoff according to the target power backoff parameters and sends data to the network equipment according to the backed-back transmission power. The method and the device are used for the process that the terminal device sends data to the network device.

Description

Data transmission method and communication device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a data transmission method and a communications apparatus.

Background

In the prior art, when a terminal device sends data to a network device accessed by the terminal device through a certain frequency band, the terminal device needs to use a certain transmission power to send the data on the frequency band, so that the terminal device can send the data to the network device. In order to avoid that the transmission power used by the terminal device when sending data in the frequency band is too large, which causes interference to the adjacent frequency band of the frequency band, the terminal device may return to the preset transmission power, that is, power backoff.

When the terminal device performs power backoff, how to enable the power after power backoff to meet the data transmission requirements of the terminal device in different communication scenarios becomes a technical problem to be solved urgently.

Disclosure of Invention

The application provides a data transmission method and a communication device, which solve the problem that the existing power back-off scheme can not meet the data transmission requirements of terminal equipment in different communication scenes.

In order to achieve the purpose, the technical scheme is as follows:

in a first aspect, the present application provides a data transmission method, where the method is applicable to a terminal device, or the method is applicable to a communication apparatus that can support the terminal device to implement the method, where the communication apparatus may be a module or a functional unit or a chip system in the terminal device, and the method may include: the terminal equipment determines a target power back-off parameter corresponding to the current judging condition of the terminal equipment from N groups of power back-off parameters corresponding to the N judging conditions according to the current judging condition, wherein N is an integer greater than 1; and the terminal equipment performs power backoff according to the target power backoff parameters and sends data to the network equipment according to the backed-back transmission power.

Based on the data transmission method provided in the first aspect, since the corresponding determination conditions of the terminal device may be different in different communication scenarios and the corresponding power backoff parameters may be different, in view of this, the present application associates multiple determination conditions with multiple sets of power backoff parameters, so that the terminal device may determine the current determination condition according to the current communication scenario of the terminal device, determine the power backoff parameter corresponding to the current communication scenario of the terminal device from the multiple sets of power backoff parameters according to the current determination condition, implement that the terminal device may use different power backoff parameters to perform power backoff when sending data to the network device in different communication scenarios, and send data to the network side according to the transmission power after power backoff. Therefore, the technical scheme of the application can ensure that the power back-off parameter used by the terminal equipment meets the requirements of the communication environment, and meets the data transmission requirements of the terminal equipment in different communication scenes.

In one possible implementation, each of the N determination conditions includes one or more of the following: location information, mobility information, and altitude information.

Based on the possible implementation mode, the terminal equipment can determine the current judgment condition of the terminal equipment from multiple aspects according to multiple judgment conditions, and the method is comprehensive and accurate.

In a possible implementation manner, the correspondence between the N sets of power backoff parameters and the N determination conditions is preset by the terminal device.

Based on the possible implementation mode, the corresponding relation between the N groups of power backoff parameters and the N judgment conditions can be configured to the terminal equipment in advance, so that the terminal equipment is convenient to use, the terminal equipment does not need to acquire the corresponding relation through signaling interaction, and the signaling overhead and the power consumption brought by the terminal equipment for acquiring the corresponding relation are saved.

In one possible implementation manner, the terminal device receives first indication information for indicating K sets of power backoff parameters from the network device, where K is an integer greater than or equal to N.

Based on the possible implementation mode, the terminal device can acquire K groups of power backoff parameters through interaction with the network device, so that the flexibility and the possibility of selecting the power backoff parameters by the terminal device are increased.

In a possible implementation manner, the terminal device sends, to the network device, capability information of the terminal device for indicating M sets of power backoff parameters supported by the terminal device, where M is a positive integer; and the terminal equipment receives second indication information which is used for indicating the terminal equipment to use the N groups of power back-off parameters for power back-off from the network equipment. N is less than or equal to M.

Based on the possible implementation mode, the terminal device sends the capability information of the terminal device to the network device and receives multiple groups of power back-off parameters determined by the network device according to the capability information of the terminal device, so that power back-off is avoided when the terminal device uses the unsupported power back-off parameters, and the accuracy of power back-off when the terminal device sends data is improved.

In a possible implementation manner, the terminal device receives third indication information from the network device, where the third indication information is used to indicate that the terminal device reports the capability information of the terminal device. And the terminal equipment sends the capability information of the terminal equipment to the network equipment according to the third indication information.

Based on the possible implementation mode, the terminal device can report the capability information of the terminal device after receiving the indication information of the network device, so that the terminal device can avoid power consumption caused by reporting the capability information of the terminal device in advance or periodically, and the power consumption of the terminal device is reduced.

In a possible implementation manner, when the trigger condition is satisfied, the terminal device determines, according to the current determination condition, a target power backoff parameter corresponding to the current determination condition of the terminal device from the N sets of power backoff parameters. The triggering condition is that a triggering period preset by the terminal equipment is met or the terminal equipment receives triggering information of the network equipment.

Based on the possible implementation manner, when the trigger condition is met, the terminal device detects the current judgment condition and determines the target power back-off parameter corresponding to the current judgment condition of the terminal device from the N groups of power back-off parameters, so that the power consumption caused by the fact that the terminal device detects the current judgment condition in advance or continuously and determines the target power back-off parameter from the N groups of power back-off parameters can be avoided, and the power consumption of the terminal device is reduced.

In a second aspect, a communication apparatus is provided, which may be a terminal device or a chip or a system on a chip in the terminal device, and may also be a functional module in the terminal device for implementing the method according to the first aspect or any possible design of the first aspect. The communication device may implement the functions performed by the terminal device in the above aspects or possible designs, and the functions may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions. Such as: the communication device includes a communication unit and a processing unit.

The processing unit is configured to determine, according to a current determination condition, a target power back-off parameter corresponding to the current determination condition of the terminal device from N sets of power back-off parameters, where the N sets of power back-off parameters are in a specific correspondence with N determination conditions, the power back-off parameter is a parameter used when the terminal device performs power back-off, and N is an integer greater than 1.

The processing unit is further configured to perform power backoff according to the target power backoff parameter.

The communication unit is used for sending data to the network equipment according to the transmission power after the backspacing.

The relevant description of the determination conditions, the relevant description of the correspondence between the N sets of power backoff parameters and the N determination conditions, and the determination process of the N sets of power backoff parameters may refer to the description of the first aspect, which is not repeated herein.

In a third aspect, a communication apparatus is provided, which may be a terminal device or a chip or a system on a chip in the terminal device. The communication apparatus may implement the functions performed by the terminal device in the above aspects or possible designs, and the functions may be implemented by hardware, such as: in one possible design, the communication device may include: a processor and a communication interface. The processor may be adapted to support the communication device to implement the functionality referred to in the first aspect above or in any one of the possible designs of the first aspect, for example: the processor is used for determining a target power back-off parameter corresponding to the current judging condition of the terminal equipment from N groups of power back-off parameters which have corresponding relations with the N judging conditions according to the judging conditions, wherein N is an integer larger than 1, and power back-off is carried out according to the target power back-off parameter; and is further configured to send data to the network device through the communication interface according to the fallback transmit power. In yet another possible design, the communication device may further include a memory to hold computer instructions and/or data. The processor executes the computer instructions stored in the memory when the communication device is operating to cause the communication device to perform the data transmission method of the first aspect or any one of the possible designs of the first aspect. In the embodiments of the present application, the communication interface may be a transceiver, an interface circuit, a bus interface, a pin, or other devices capable of performing a transceiving function.

In a fourth aspect, a computer-readable storage medium is provided, which may be a readable non-volatile storage medium, and which stores computer instructions or a program, which when executed on a computer, make the computer perform the data transmission method according to the first aspect or any one of the possible designs of the first aspect.

In a fifth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the data transmission method of the first aspect described above or any one of the possible designs of the first aspect described above.

In a sixth aspect, a communication apparatus is provided, which may be a terminal device or a chip or a system on a chip in a terminal device, and includes one or more processors and one or more memories. The one or more memories are coupled to the one or more processors for storing computer program code comprising computer instructions which, when executed by the one or more processors, cause the terminal device to perform the data transmission method as set forth in the first aspect above or any one of the possible designs of the first aspect.

In a seventh aspect, a chip system is provided, where the chip system includes a processor and a communication interface, and the chip system may be configured to implement the functions performed by the terminal device in the first aspect or any possible design of the first aspect. For example, the processor is configured to determine, according to the determination condition, a target power back-off parameter corresponding to the current determination condition of the terminal device from N sets of power back-off parameters having a correspondence relationship with the N determination conditions, where N is an integer greater than 1, and perform power back-off according to the target power back-off parameter; and is further configured to send data to the network device through the communication interface according to the fallback transmit power. In one possible design, the system-on-chip further includes a memory, where the memory is used to store program instructions and/or data, and when the system-on-chip is running, the processor executes the program instructions stored in the memory, so as to enable the system-on-chip to perform the data transmission method according to the first aspect or any one of the possible designs of the first aspect. The chip system may be formed by a chip, and may also include a chip and other discrete devices, without limitation.

For technical effects brought by any design manner of the second aspect to the seventh aspect, reference may be made to the technical effects brought by the first aspect or any possible design of the first aspect, and details are not repeated.

In an eighth aspect, a data transmission method is provided, where the method is applicable to a network device, or a communication apparatus that may support the network device to implement the method, where the communication apparatus includes a module or a functional unit or a chip system that may be within the network device, and the method may include: the network equipment sends first indication information for indicating K groups of power backoff parameters to the terminal equipment, wherein K is a positive integer; the network equipment receives data sent by transmitting power after power backoff is carried out by using a target power backoff parameter from the terminal equipment, wherein the target power backoff parameter is a power backoff parameter which is determined by the terminal equipment according to a current judgment condition and corresponds to the current judgment condition of the terminal equipment from N groups of power backoff parameters which have corresponding relations with N judgment conditions, and N is an integer which is greater than 1 and less than or equal to K.

Based on the possible implementation manner, since the corresponding determination conditions of the terminal device may be different in different communication scenarios and the corresponding power backoff parameters may be different, in view of this, the network side may send the indication information for indicating multiple sets of power backoff parameters to the terminal device, so that the terminal device may obtain K sets of power backoff parameters through interaction with the network device, and flexibility and possibility of selecting the power backoff parameters by the terminal device are increased. Meanwhile, the multiple judgments correspond to multiple groups of power backoff parameters, so that the terminal equipment can obtain the power backoff parameters corresponding to the current communication scene of the terminal equipment. And when the terminal equipment sends data to the network equipment in different communication scenes, the terminal equipment uses different power backoff parameters to perform power backoff, and sends the data to the network side according to the backed-back transmission power. Therefore, the technical scheme of the application can ensure that the power back-off parameter used by the terminal equipment meets the requirements of the communication environment, and meets the data transmission requirements of the terminal equipment in different communication scenes.

In one possible implementation manner, a network device receives capability information of a terminal device from the terminal device, the capability information being used for indicating that the terminal device supports M groups of power backoff parameters for power backoff, where M is a positive integer; and the network equipment sends second indication information for indicating the terminal to use N groups of power backoff parameters to perform power backoff to the terminal equipment according to the capability information of the terminal equipment, wherein N is less than or equal to M.

Based on the possible implementation mode, the network device can acquire the power back-off parameter supported by the terminal device when performing power back-off through signaling interaction with the terminal device, and the method is simple and easy to implement. Meanwhile, the terminal equipment can be prevented from using the unsupported power backoff parameters to perform power backoff, and the accuracy of the power backoff when the terminal equipment sends data is improved.

In a possible implementation manner, the network device sends, to the terminal device, third indication information for indicating that the terminal device reports the capability information of the terminal device.

Based on the possible implementation manner, the network device may trigger the terminal device that receives the indication information to report the capability information thereof by sending the indication information, so as to avoid power consumption caused by reporting the capability information of the terminal device in advance or periodically, and reduce power consumption of the terminal device.

A ninth aspect provides a communication apparatus, which is applied to a network device or a chip or a system on a chip in a network device, and may also be a functional module in a network device for implementing the method according to any one of the possible designs of the eighth aspect or the eighth aspect. The communication means may implement the functions performed by the network device in each of the above aspects or possible designs, which functions may be implemented by hardware executing the corresponding software. The hardware or software comprises one or more modules corresponding to the functions. Such as: the communication device includes a communication unit.

The communication unit is used for sending first indication information for indicating K groups of power backoff parameters to the terminal equipment, wherein K is a positive integer; the communication unit is further configured to receive data sent by the terminal device with the transmit power after power backoff is performed using a target power backoff parameter, where the target power backoff parameter is a power backoff parameter corresponding to a current determination condition of the terminal device, and is determined by the terminal device from N sets of power backoff parameters corresponding to N determination conditions, where N is an integer greater than 1 and less than or equal to K.

In a tenth aspect, a communication apparatus is provided, which may be a network device or a chip or a system on a chip in a network device. The communication apparatus may implement the functions performed by the terminal device in the above aspects or possible designs, and the functions may be implemented by hardware, such as: in one possible design, the communication device may include: a processor and a communication interface. The processor may be configured to support the communication apparatus to implement the functions involved in any one of the above-mentioned eighth aspect or the eighth aspect, for example, the processor sends first indication information indicating K sets of power backoff parameters to the terminal device through the communication interface, where K is a positive integer; the processor may be further configured to enable the communication interface to receive data from a transmission power transmission of the terminal device after power backoff according to the target power backoff parameter. The method for determining the target power backoff parameter may refer to the eighth aspect, which is not described in detail herein.

In yet another possible design, the communication device may further include a memory to hold computer instructions and/or data. When the communication device is running, the processor executes the computer instructions stored in the memory to make the communication device execute the data transmission method according to any one of the above-mentioned eighth aspect or the eighth aspect. In the embodiments of the present application, the communication interface may be a transceiver, an interface circuit, a bus interface, a pin, or other devices capable of performing a transceiving function.

In an eleventh aspect, a computer-readable storage medium is provided, which may be a readable non-volatile storage medium, and stores a computer instruction or a program, which when executed on a computer, enables the computer to execute the data transmission method according to the eighth aspect or any one of the possible designs of the eighth aspect.

In a twelfth aspect, there is provided a computer program product containing instructions that, when run on a computer, enable the computer to perform the data transmission method according to the above-mentioned eighth aspect or any one of the possible designs of the above-mentioned eighth aspect.

In a thirteenth aspect, a communication apparatus is provided, which may be a network device or a chip or a system on a chip in a network device, and includes one or more processors and one or more memories. The one or more memories are coupled to the one or more processors and the one or more memories are configured to store computer program code comprising computer instructions that, when executed by the one or more processors, cause the network device to perform the data transmission method as set forth in any of the possible designs of the above-described eighth aspect or eighth aspect.

In a fourteenth aspect, a chip system is provided, where the chip system includes a processor and a communication interface, and the chip system may be configured to implement the functions performed by the terminal device in any possible design of the eighth aspect or the eighth aspect. For example, the processor may be configured to support the communication apparatus to implement the functions involved in any one of the above-mentioned eighth aspect or eighth aspect, for example, the processor sends first indication information for indicating K sets of power backoff parameters to the terminal device through the communication interface, where K is a positive integer; the processor may be further configured to enable the communication interface to receive data from a transmission power transmission of the terminal device after power backoff according to the target power backoff parameter. The method for determining the target power backoff parameter may refer to the eighth aspect, which is not described in detail herein.

In one possible design, the system-on-chip further includes a memory, where the memory is used to store program instructions and/or data, and when the system-on-chip is running, the processor executes the program instructions stored in the memory to make the system-on-chip perform the data transmission method according to any one of the possible designs of the first aspect or the eighth aspect. The chip system may be formed by a chip, and may also include a chip and other discrete devices, without limitation.

For technical effects brought by any design manner in the ninth aspect to the fourteenth aspect, reference may be made to the technical effects brought by the first aspect or any possible design manner in the first aspect, and details are not repeated.

In a fifteenth aspect, the present application provides a communication system, comprising a terminal device and a network device in communication with the terminal device, the terminal device being configured to perform the data transmission method as described in the first aspect and any one of the possible implementations of the first aspect, and the network device being configured to perform the data transmission method as described in any one of the possible implementations of the eighth aspect and the eighth aspect.

Drawings

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

fig. 2 is a schematic diagram illustrating a communication apparatus 200 according to an embodiment of the present disclosure;

fig. 3 is a flowchart of a data transmission method according to an embodiment of the present application;

fig. 4 is a flowchart of another data transmission method provided in the embodiment of the present application;

fig. 5 is a schematic structural diagram of a communication device 50 according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a communication device 60 according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a communication system according to an embodiment of the present application.

Detailed Description

Before describing the method provided by the embodiment of the present application, related technical terms of the embodiment are briefly described:

the Maximum Power Reduction (MPR) is a maximum allowed back-off power value of the terminal device when the terminal device performs power back-off. Wherein, the PMR may include a general MPR and an Additional MPR (a-MPR). The terminal device may fallback to the general MPR according to the fallback index corresponding to the general MPR. Alternatively, the terminal device may fallback to the additional MPR according to the fallback index corresponding to the additional MPR. The backoff indicator corresponding to the general MPR and the backoff indicator corresponding to the additional MPR may refer to a third generation partnership project (3 GPP) TS38.101, which is not described in detail herein.

For example, when performing power backoff, the terminal device may fallback to the general Maximum Power Reduction (MPR) according to a backoff indicator corresponding to the MPR, or fallback to the additional MPR according to a backoff indicator corresponding to the additional MPR. The fallback index corresponding to the general MPR is an index that the network device allows the terminal device to fallback to the general MPR and needs to meet the requirement, and the fallback index corresponding to the additional MPR is an index that the network device allows the terminal device to fallback to the additional MPR and needs to meet the requirement.

Since the general MPR and the additional MPR are not changed with the change of the communication environment of the terminal device in a single network, the maximum power value that the terminal device can back in different communication environments is not changed, and the data transmission requirements of the terminal device in different communication scenes cannot be met.

In order to solve the above problem, an embodiment of the present application provides a data transmission method, where the method may include: and the terminal equipment determines a target power back-off parameter corresponding to the current judging condition of the terminal equipment from N groups of power back-off parameters corresponding to the N judging conditions according to the current judging condition. And the terminal equipment performs power backoff according to the target power backoff parameters and sends data to the network equipment according to the backed-back transmission power.

Based on the technical scheme, because the corresponding judging conditions of the terminal device may be different in different communication scenes and the corresponding power backoff parameters are different, in view of this, the present application associates multiple judging conditions with multiple groups of power backoff parameters, so that the terminal device can determine the current judging conditions according to the current communication scene of the terminal device, determine the power backoff parameters corresponding to the current communication scene of the terminal device from the multiple groups of power backoff parameters according to the current judging conditions, implement that the terminal device uses different function backoff parameters to perform power backoff when sending data to the network device in different communication scenes, and send data to the network side according to the transmission power after power backoff. Therefore, the technical scheme of the application can ensure that the power back-off parameter used by the terminal equipment meets the requirement of the communication environment, and meets the data transmission requirement of the terminal equipment in different communication scenes.

The power back-off parameter may also be referred to as a power back-off indicator. Refers to parameters used by the terminal device in performing power backoff. Wherein the terminal device may perform power backoff using one or more power backoff parameters. For example, the one or more power backoff parameters may include a general MPR parameter and an additional MPR parameter.

The general MPR parameter may be some power backoff parameters that are frequently referred to/frequently used by the terminal device when performing power backoff. The general MPR parameter may be oriented to a type of communication region or communication scenario where transmission requirements are the same, the general MPR parameter may be shared in the type of communication region or communication scenario, and communication regions or communication scenarios with different transmission requirements correspond to different general MPR parameters. The additional MPR parameters may be other power backoff parameters than the general MPR parameters, such as some power backoff parameters that may need to be additionally met by the terminal device due to regional differences or other communication transmission requirements.

The MPR parameter is used to specify the maximum power value that the terminal device can back off in different transmission waveforms, different modulation classes, and different transmission physical layer resources.

The transmission waveform may include fourier spread orthogonal frequency division multiplexing (DFT-s-OFDM), cyclic prefix orthogonal frequency division multiplexing (CP-OFDM), or the like. Each transmit waveform may correspond to multiple modulation classes. For example, the modulation levels may include one or more of Pi/2 Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), 16 Quadrature Amplitude Modulation (QAM), 64QAM, 128 QAM.

The transmitting physical layer resource may include an edge Resource Block (RB), an outer RB, and an inner RB.

For example, as shown in table 1, the maximum power value that can be backed off by the terminal device under different transmission waveforms, different modulation classes, and different transmission physical layer resources may be as shown in table 1.

TABLE 1

It should be noted that, in the embodiment of the present application, the additional MPR parameter may further include a backoff parameter corresponding to another communication transmission requirement, which is not limited. In table 1, this is merely exemplary. The maximum power value that can be backed off by the terminal device under different transmission waveforms, different modulation levels, and different transmission physical layer resources may also be other power values, for example, the maximum power value may be set according to the difference of the regional differences, without limitation.

For example, when the terminal device is located indoors, the power back-off parameters used by the terminal device may include: one or more power backoff parameters for coexistence with the indoor communication system are satisfied. The indoor communication system may be an indoor distribution system, such as: indoor Long Term Evolution (LTE), etc., without limitation. When the terminal device is indoors, the backspacing power parameter that may need to be satisfied is the power backspacing parameter that satisfies the indoor coexistence requirement when the maximum allowed backspacing is 10 dB.

For another example, when the terminal device is located outdoors, the power back-off parameter used by the terminal device may be a power back-off parameter that is not required to satisfy the indoor communication system. Alternatively, the power back-off parameters used by the terminal device may include: one or more power backoff parameters are satisfied for coexistence with the outdoor communication system. The outdoor communication system may be a radar system, etc., without limitation.

The data transmission method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings.

The data transmission method provided by the embodiment of the application can be used for various communication systems, such as: the method and the system can be applied to any one of a fourth generation (4th generation, 4G) system, an LTE system, a fifth generation (5th generation, 5G) system, a New Radio (NR) system, and a vehicle-to-vehicle (NR) -to-vehicle (V2X) system, and can also be applied to other next generation communication systems, and the like, without limitation. The method provided by the embodiment of the present application is described below by taking the communication system shown in fig. 1 as an example.

It should be noted that the communication system described in the embodiment of the present application is for more clearly illustrating the technical solution of the embodiment of the present application, and does not constitute a limitation to the technical solution provided in the embodiment of the present application, and as a person having ordinary skill in the art knows that along with the evolution of a network architecture and the appearance of other communication systems, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

Fig. 1 is a schematic architecture diagram of a communication system to which an embodiment of the present application is applied. As shown in fig. 1, the communication system may include a network device 110 and at least one terminal device (e.g., terminal device 120 and terminal device 130 in fig. 1). At least one terminal device is connected with the network device in a wireless mode. The terminal equipment may be fixed or mobile. It should be noted that fig. 1 is an exemplary framework diagram, the number of network devices and the number of terminal devices included in fig. 1 are not limited, names of the respective devices are not limited, and in addition to the functional nodes shown in fig. 1, other nodes may also be included, such as: core network devices, gateway devices, application servers, etc., without limitation.

The network device in fig. 1 is mainly used to implement functions of resource scheduling, radio resource management, radio access control, and the like of the terminal device. Specifically, the network device may be any one of a small cell, a wireless access point, a transmission point (TRP), a Transmission Point (TP), and some other access node. In this embodiment of the present application, the apparatus for implementing the function of the network device may be a network device, or may be an apparatus capable of supporting the network device to implement the function, for example, a chip system. The following describes a data transmission method provided in an embodiment of the present application, by taking an example in which a device for implementing a function of a network device is a network device.

The terminal device in fig. 1 may be referred to as a terminal, and may also be referred to as a User Equipment (UE), a Mobile Station (MS), a mobile terminal device (MT), or the like. Specifically, the terminal device may be a mobile phone (mobile phone), a tablet computer or a computer with a wireless transceiving function, and may also be a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal device in industrial control, a wireless terminal device in unmanned driving, a wireless terminal device in telemedicine, a wireless terminal device in a smart grid, a wireless terminal device in a smart city (smart city), a smart home, a vehicle-mounted terminal device, and the like. In this embodiment of the present application, the apparatus for implementing the function of the terminal device may be the terminal device, or may be an apparatus capable of supporting the terminal device to implement the function, for example, a chip system. The following describes a data transmission method provided in an embodiment of the present application, by taking a device for implementing a function of a terminal device as an example.

In the system shown in fig. 1, in order to meet data transmission requirements of the terminal device in different communication scenarios, the terminal device may perform power backoff according to a power backoff parameter corresponding to a current determination condition, and send data to the network device according to the backed-back power. Specifically, the implementation process may be described with reference to the following embodiments corresponding to fig. 3 to 4.

In a specific implementation, each network element shown in fig. 1, such as a network device and a terminal device, may adopt the composition structure shown in fig. 2 or include the components shown in fig. 2. Fig. 2 is a schematic composition diagram of a communication apparatus 200 according to an embodiment of the present application, where when the communication apparatus 200 has a function of the terminal device according to the embodiment of the present application, the communication apparatus 200 may be the terminal device or a chip or a system on a chip in the terminal device. When the communication apparatus 200 has the functions of the network device according to the embodiment of the present application, the communication apparatus 200 may be a network device or a chip or a system on a chip in the network device.

As shown in fig. 2, the communication device 200 may include a processor 201, a communication line 202, and a transceiver 203. Further, the communication device 200 can also include a memory 204. The processor 201, the memory 204 and the transceiver 203 may be connected via a communication line 202.

The processor 201 may be a Central Processing Unit (CPU), a general purpose processor Network (NP), a Digital Signal Processor (DSP), a microprocessor, a microcontroller, a Programmable Logic Device (PLD), or any combination thereof. The processor 201 may also be other means with processing functionality such as a circuit, a device, or a software module.

A communication line 202 for transmitting information between the respective components included in the communication apparatus 200.

A transceiver 203 for communicating with other devices or other communication networks. The other communication network may be an ethernet, a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), or the like. The transceiver 203 may be a radio frequency module, a communication interface, or any device capable of enabling communication. In the embodiment of the present application, only the transceiver 203 is taken as an example of a radio frequency module, where the radio frequency module may include an antenna, a radio frequency circuit, and the like, and the radio frequency circuit may include a radio frequency integrated chip, a power amplifier, and the like.

A memory 204 for storing instructions. Wherein the instructions may be a computer program.

The memory 204 may be a read-only memory (ROM) or other types of static storage devices that can store static information and/or instructions, a Random Access Memory (RAM) or other types of dynamic storage devices that can store information and/or instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, magnetic disc storage media or other magnetic storage devices, and the optical disc storage includes a compact disc, a laser disc, an optical disc, a digital versatile disc, a blu-ray disc, and the like.

It should be noted that the memory 204 may exist independently from the processor 201, or may be integrated with the processor 201. The memory 204 may be used for storing instructions or program code or some data etc. The memory 204 may be located inside the communication device 200 or outside the communication device 200, which is not limited. The processor 201 is configured to execute the instructions stored in the memory 204 to implement the multicast service transmission method provided in the following embodiments of the present application.

In one example, processor 201 may include one or more CPUs, such as CPU0 and CPU1 in fig. 2.

As an alternative implementation, the communication device 200 includes multiple processors, for example, the processor 207 may be included in addition to the processor 201 in fig. 2.

As an alternative implementation, the communication apparatus 200 further comprises an output device 205 and an input device 206. Illustratively, the input device 206 is a keyboard, mouse, microphone, or joystick, among other devices, and the output device 205 is a display screen, speaker (spaker), among other devices.

It should be noted that the communication apparatus 200 may be a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless terminal, an embedded device, a chip system or a device with a similar structure as that in fig. 2. Further, the constituent structures shown in fig. 2 do not constitute limitations of the communication apparatus, and the communication apparatus may include more or less components than those shown in fig. 2, or combine some components, or a different arrangement of components, in addition to the components shown in fig. 2.

In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.

The following describes a data transmission method provided in the embodiment of the present application with reference to the communication system shown in fig. 1. Among them, each device in the following embodiments may have the components shown in fig. 2. In this application, the actions, terms, and the like referred to in the embodiments are all mutually referred to, and are not limited. In the embodiment of the present application, the name of the message exchanged between the devices or the name of the parameter in the message, etc. are only an example, and other names may also be used in the specific implementation, which is not limited. The actions related to the embodiments of the present application are only an example, and other names may also be used in the specific implementation, for example: the "carried on" described in the embodiments of the present application may also be replaced by "carried on" or "included" or the like.

Fig. 3 is a flowchart of a data transmission method according to an embodiment of the present application, and as shown in fig. 3, the method includes:

step 301, the terminal device determines a target power back-off parameter corresponding to the current determination condition of the terminal device from the N sets of power back-off parameters according to the current determination condition.

The terminal device may be any one of the terminal devices in fig. 1. For example, the terminal device may be the terminal device 120 or the terminal device 130 in fig. 1, without limitation.

Wherein N may be an integer greater than 1. Each of the N sets of power back-off parameters corresponds to a judgment condition, and the judgment condition may be used to trigger the terminal device to determine the power back-off parameter corresponding to the judgment condition from the N sets of power back-off parameters. The target power back-off parameter may refer to a set of power back-off parameters corresponding to the current determination condition of the terminal device, or may refer to a part of the power back-off parameters in the set of power back-off parameters corresponding to the current determination condition of the terminal device, without limitation. The detailed description of the power back-off parameters may refer to the above.

For example, the terminal device may determine the target power back-off parameter corresponding to the current determination condition of the terminal device according to the correspondence between the N determination conditions and the N sets of power back-off parameters. Each of the N determination conditions may include one or more of location information, mobility information, and altitude information. The location information refers to coordinate information of the terminal device, for example, the coordinate information of the terminal device may be Global Positioning System (GPS) coordinates or beidou coordinates, and is not limited. The mobility information refers to a moving speed of the terminal device. The height information of the terminal device may refer to an altitude of a location where the terminal device is located. Each judgment condition may further include other information, such as air temperature information, air humidity information, and the like, without limitation. The current judging condition of the terminal equipment is one of the N judging conditions. The terminal device may be preconfigured with the correspondence between the N determination conditions and the N sets of power backoff parameters. The terminal device may also obtain, from other devices, a corresponding relationship between the multiple determination conditions and the multiple sets of power backoff parameters, for example, the other devices may be core network devices, which is not limited.

The corresponding relationship between the N determination conditions and the N sets of power backoff parameters may be stored in a table form, or may be stored in other forms, such as in a data form. For example, taking a table format as an example, the correspondence between the N determination conditions and the N sets of power backoff parameters may be as shown in table 1. As shown in table 2, the 1 st group of power backoff parameters corresponds to the determination condition 1, the 2 nd group of power backoff parameters corresponds to the determination conditions 2 and …, and the nth group of power backoff parameters corresponds to the determination condition N.

TABLE 2

It should be noted that, table 2 only indicates the storage form of the corresponding relationship in the terminal device or other devices in the form of a table, and is not limited to the storage form of the corresponding relationship in the terminal device or other devices, and of course, the storage form of the corresponding relationship in the terminal device or other devices may also be stored in other forms, such as in the form of an array, which is not limited in this embodiment of the present application. The corresponding relationship in table 2 is only exemplary, and other power back-off parameters and corresponding determination conditions may also be included, without limitation. The power back-off parameters in each set of power back-off parameters in table 2 may all be different or partially different.

The following describes, with reference to table 2, that the terminal device determines a power backoff parameter corresponding to the current determination condition of the terminal device from N sets of power backoff parameters according to any one of the position information, the mobility information, and the altitude information included in the determination condition:

1. and the terminal equipment determines a group of power back-off parameters or partial power back-off parameters in a group of power back-off parameters corresponding to the current position information of the terminal equipment from the N groups of power back-off parameters according to the current position information of the terminal equipment.

For example, the current location information of the terminal device may refer to whether the terminal device is located indoors or outdoors. The current location information of the terminal device may also refer to a distance between the terminal device and the network device.

The terminal device can be matched with a pre-configured electronic map according to the coordinate information of the terminal device, and whether the terminal device is located indoors or outdoors is determined.

The terminal device may determine the distance between the terminal device and the network device according to a difference between the coordinate information of the terminal device and the coordinate information of the network device.

An example, when the terminal device is located indoors, the corresponding determination condition for the terminal device being located indoors is determination condition 1 in table 2. The terminal device may determine, according to the correspondence in table 2, that the power back-off parameter corresponding to the determination condition 1 is the 1 st group of power back-off parameters or a part of the power back-off parameters in the 1 st group of power back-off parameters. When the terminal device is located outdoors, the judgment condition corresponding to the terminal device being located outdoors is judgment condition 2 in table 2. The terminal device may determine, according to the correspondence in table 2, that the power back-off parameter corresponding to the determination condition 2 is the set 2 power back-off parameter or a part of the set 2 power back-off parameters.

As another example, the judgment condition corresponding to when the distance between the terminal device and the network device is smaller than the preset value is judgment condition 3 in table 2. The terminal device may determine, according to the correspondence in table 2, that the power backoff parameter corresponding to the determination condition 3 is the 3rd group power backoff parameter or a partial power backoff parameter in the 3rd group power backoff parameter. The judgment condition corresponding to the distance between the terminal device and the network device being greater than or equal to the preset value is judgment condition 4 in table 2. The terminal device may determine, according to the correspondence in table 2, that the target power back-off parameter corresponding to the determination condition 4 is the 4th group of power back-off parameters or a part of the 4th group of power back-off parameters.

The preset value can be set according to the requirement, and is not limited.

2. And the terminal equipment determines a target power back-off parameter from the N groups of power back-off parameters according to the current mobility information of the terminal equipment.

The terminal device can determine the moving speed of the terminal device according to the change information of the coordinates of the terminal device within the preset time. The preset time can be set according to needs and is not limited.

An example, when the moving speed of the terminal device is smaller than the first moving speed, the determination condition corresponding to the moving speed of the terminal device being smaller than the first moving speed is determination condition 5 in table 2. The terminal device may determine, according to the correspondence in table 2, that the power backoff parameter corresponding to the determination condition 5 is the 5th group of power backoff parameters or a part of the power backoff parameters in the 5th group of power backoff parameters. When the moving speed of the terminal device is greater than or equal to the first moving speed, the determination condition corresponding to the moving speed of the terminal device being greater than or equal to the first moving speed is determination condition 6 in table 2. The terminal device may determine, according to the correspondence in table 2, that the power backoff parameter corresponding to the determination condition 6 is the 6 th group of power backoff parameters or a part of the power backoff parameters in the 6 th group of power backoff parameters.

The first moving speed is set according to the requirement and is not limited.

3. And the terminal equipment determines a target power back-off parameter from the N groups of power back-off parameters according to the current height information of the terminal equipment.

The terminal device may measure the height information of the location of the terminal device according to a preset application or hardware configured for the terminal device in advance, which is not limited. Preset applications or hardware configured by the terminal device may be used to measure the height of the current location of the terminal device.

For example, when the height of the location of the terminal device is smaller than the first height, the determination condition that the height of the location of the terminal device is smaller than the first height is determination condition 7 in table 2. The terminal device may determine, according to the correspondence in table 2, that the power back-off parameter corresponding to the determination condition 7 is the 7 th power back-off parameter or a partial power back-off parameter in the 7 th group of power back-off parameters. When the height of the position where the terminal device is located is greater than or equal to the first height, the judgment condition corresponding to the position where the terminal device is located being greater than or equal to the first height is judgment condition 8 in table 2. The terminal device may determine, according to the correspondence in table 2, that the power back-off parameter corresponding to the determination condition 8 is the 8 th group of power back-off parameters or a part of the power back-off parameters in the 8 th group of power back-off parameters.

The first height may be set as required, and is not limited.

It should be noted that, the method for determining the target power back-off parameter from the N sets of power back-off parameters by the terminal device according to the air temperature information or the air humidity information may refer to the method for determining the target power back-off parameter from the N sets of power back-off parameters by the terminal device according to the location information of the terminal device, which is not described again.

When the current determination condition information of the terminal device includes multiple information in the location information, the mobility information, and the altitude information, the determining, by the terminal device, a target power back-off parameter corresponding to the current determination condition of the terminal device from the N sets of power back-off parameters according to the current determination condition may include: the terminal device may determine the target power backoff parameter according to the corresponding relationship in table 2; or, the terminal device may determine the target power backoff parameter according to the determination condition corresponding to each of the plurality of pieces of information; alternatively, the terminal device may determine the target power backoff parameter according to the priorities of the plurality of information. Specifically, this embodiment can be described with reference to the first embodiment, the second embodiment, or the third embodiment.

In the first mode, the terminal device may determine the target power backoff parameter corresponding to the current determination condition of the terminal device according to the corresponding relationship in table 2.

For example, one determination condition in the correspondence relationship in table 2 may include a plurality of position information, mobility information, and altitude information. For example, the determination condition 1 includes being located indoors and the moving speed being greater than the first moving speed. The determination condition 2 includes being located indoors and the moving speed being less than or equal to the first moving speed. The terminal device may determine the power backoff parameters corresponding to the determination condition 1 and the determination condition 2 according to the correspondence in table 2.

For another example, the determination condition 3 includes being located indoors, the moving speed being greater than the first moving speed, and the height being greater than the first height. The judgment condition 4 includes being located indoors, the moving speed being less than or equal to the first moving speed, and the height being less than or equal to the first height. The terminal device may determine the power backoff parameters corresponding to the determination condition 3 and the determination condition 4 according to the correspondence in table 2.

And secondly, the terminal equipment can determine the target power back-off parameter according to the judgment condition corresponding to each piece of the information.

In one example, the determining, by the terminal device, the target power backoff parameter according to the determination condition corresponding to each of the plurality of information may include: the terminal device may use, as the target power back-off parameter, the power back-off parameter with the maximum power value when the terminal device performs power back-off according to the power back-off parameter corresponding to each of the plurality of pieces of information.

For example, the current determination condition of the terminal device includes position information, mobility information, and altitude information. The power back-off parameter corresponding to the current position information of the terminal device is a 1 st group of power back-off parameters, and the power value of the terminal device back-off according to the 1 st group of power back-off parameters is a first power value. The power back-off parameter corresponding to the current mobility information of the terminal device is a 2 nd group of power back-off parameters, and the power value of the terminal device back-off according to the 2 nd group of power back-off parameters is a second power value. The power back-off parameter corresponding to the current height information of the terminal equipment is a 3rd group of power back-off parameters, and the power value backed-off by the terminal equipment according to the 3rd group of power back-off parameters is a third power value.

If the first power value is greater than the second power value and the second power value is greater than the third power value, the terminal device may use the 1 st set of power backoff parameters as the target power backoff parameters.

And thirdly, the terminal equipment can determine the target power back-off parameter according to the priority of the plurality of information.

For example, the terminal device may determine the target power backoff power according to a priority according to location information, mobility information, and altitude information of the terminal device.

For example, the terminal device may determine, according to the information with the highest priority, a power backoff parameter corresponding to the determination condition with the highest priority from the N sets of power backoff parameters. For example, the determination condition includes location information and mobility information. The priority of the location information of the terminal device is higher than the priority of the mobility information. The terminal device may determine a target power back-off parameter corresponding to the current location information of the terminal device from the N sets of power back-off parameters according to the current location information of the terminal device. Specifically, the method for determining the target power back-off parameter from the N groups of power back-off parameters according to the terminal device location information may be referred to, and details are omitted.

And step 302, the terminal equipment performs power backoff according to the target power backoff parameters.

The power backoff performed by the terminal device according to the target power backoff parameter may be: the terminal device may update the used power backoff parameter to a target power backoff parameter, and perform power backoff using the target power backoff parameter. Alternatively, it may also refer to: when the power backed-off by the terminal device is the general MPR or the a-MPR, if the power backed-off by using the target power back-off parameter by the terminal device is greater than the general MPR or the a-MPR, the terminal device may perform power back-off according to the target power back-off parameter.

In one example, the terminal device replaces all or part of the power backoff parameters used by the terminal device with the target power backoff parameters.

The terminal device may compare the power back-off parameter used by the terminal device with the target power back-off parameter, determine a power back-off parameter different from the target power back-off parameter in the power back-off parameters used by the terminal device, replace the power back-off parameter different from the target power back-off parameter in the power back-off parameters currently used by the terminal device with the power back-off parameter in the target power back-off parameter, and perform power back-off according to the replaced power back-off parameter.

For example, the power back-off parameters { power back-off parameter 1, power back-off parameter 2, power back-off parameter 3} currently used by the terminal device. The target power back-off parameters determined by the terminal device according to the current judgment conditions include { power back-off parameter 1, power back-off parameter 4, power back-off parameter 5 }. The terminal device replaces the power back-off parameter 2 and the power back-off parameter 3 with: power back-off parameters 4 and 5. The terminal device may perform power backoff using the replaced power backoff parameter.

In combination with the related description in the above terms, when performing power backoff according to the target power parameter, the terminal device may perform power backoff according to the transmission waveform, the adjustment level, and the transmission physical layer resource corresponding to the target power backoff parameter. For example, the terminal device may perform power backoff according to the maximum power value of backoff corresponding to the transmission waveform, the adjustment level, and the transmission physical layer resource in table 1.

Step 303, the terminal device sends data to the network device according to the returned transmission power. Accordingly, the network device receives data from the terminal device.

The transmission power after the backoff refers to the transmission power after the terminal device performs power backoff according to the target power backoff parameter. The terminal device may determine the transmission power after the terminal device is backed off according to a difference between a preset transmission power and the power backed off according to the target power back-off parameter.

The preset transmitting power refers to transmitting power for transmitting data to the network device when the terminal device does not perform power backoff or does not use the power backoff parameter for power backoff.

For example, when the terminal device does not perform power backoff/does not use the power backoff parameter for power backoff, the transmit power for transmitting data to the network device is power 1, and the power for backoff by the terminal device according to the target backoff parameter is power 2. The transmit power after the terminal device fallback may be the difference between power 2 and power 1.

Based on the technical scheme of fig. 3, since the corresponding determination conditions of the terminal device may be different in different communication scenarios and the corresponding power backoff parameters are also different, in view of this, in the embodiment of the present application, multiple determination conditions are corresponding to multiple groups of power backoff parameters, so that the terminal device may determine the current determination condition according to the current communication scenario of the terminal device, determine the power backoff parameter corresponding to the current communication scenario of the terminal device from the multiple groups of power backoff parameters according to the current determination condition, implement power backoff on different power backoff parameters used when the terminal device sends data to the network device in different communication scenarios, and send data to the network side according to the transmission power after power backoff. Therefore, the technical scheme of the application can ensure that the power back-off parameter used by the terminal equipment meets the requirements of the communication environment, and meets the data transmission requirements of the terminal equipment in different communication scenes.

In a possible implementation manner of the method shown in fig. 3, before step 301, the method provided in the embodiment of the present application may further include: the network equipment sends the first indication information to the terminal equipment. Correspondingly, the terminal equipment receives the first indication information from the network equipment.

The network device may be the network device 110 in fig. 1.

The first indication information may be used to indicate K sets of power backoff parameters, where K is an integer greater than or equal to N.

Based on the implementation mode, the terminal equipment can acquire K groups of power backoff parameters through interaction with the network equipment, and the flexibility and the possibility of selecting the power backoff parameters by the terminal equipment are increased.

In another possible implementation manner of the method shown in fig. 3, before step 301, the method provided in this embodiment of the present application may further include: and the network equipment sends second indication information to the terminal equipment according to the capability information of the terminal equipment. Correspondingly, the terminal equipment receives the second indication information from the network equipment.

The network device may be configured with capability information of the terminal device in advance, or the network device may also obtain the capability information of the terminal device through interaction with signaling of other devices, for example, the network device may obtain the capability information of the terminal device through interaction with a core network device or signaling of other network devices; or, the network device may obtain the capability information of the terminal device through signaling interaction with the terminal device. The following describes a process in which a network device obtains capability information of a terminal device through signaling interaction with the terminal device:

s1, the network device may send the third indication information to the terminal device. Correspondingly, the terminal equipment receives the third indication information from the network equipment.

The third indication information may be used to indicate the terminal device to report capability information of the terminal device. Alternatively, the third indication information may also be used to indicate multiple sets of power backoff parameters.

The network device may send the third indication information to all terminal devices accessing the network device. For example, when the network device is the network device 110 in the system shown in fig. 1, the network device 110 may send the third indication information to the terminal device 120 and the terminal device 130.

For example, the network device may send the third indication information to all terminal devices accessing the network device, which may include: the network device sends the third indication information to the terminal device of the access network device in Additional Spectrum Emission (Additional Spectrum Emission) signaling, for example, the third indication information may be NS _ XX information. The network device may also send the third indication information to all terminal devices accessing the network device through other messages, which is not limited. For example, other messages may be Radio Resource Control (RRC) signaling. Alternatively, the network device may send the third indication information to the terminal device through dedicated signaling.

It should be noted that the network device may periodically or randomly transmit the third indication information to the terminal device accessing the network device. Of course, the network device may also send the third indication information to the terminal device after receiving the terminal device-to-terminal device access request, which is not limited.

And S2, the terminal equipment receives the third indication information from the network equipment.

The terminal device may receive the third indication information, or may be located within a coverage area of the network device. For example, when the network device is the network device 110 in fig. 1, the terminal devices that receive/are within range of the network device may be the terminal device 120 and the terminal device 130.

It should be noted that, when the third indication information is used to indicate multiple sets of power backoff parameters, after receiving the third indication information, the terminal device that does not support the multiple sets of power backoff parameters may ignore the third indication information, or may delete the third indication information, which is not limited.

And S3, the terminal equipment sends the capability information of the terminal equipment to the network equipment according to the third indication information. Accordingly, the network device receives the capability information from the terminal device.

When the third indication information is used to indicate the terminal device to report the capability information of the terminal device, the capability information of the terminal device sent by the terminal device to the network device may include a power backoff parameter supported by the terminal device; when the third indication information is used to indicate multiple sets of power backoff parameters, the capability information of the terminal device sent by the terminal device to the network device may include whether the terminal device is to support the multiple sets of power backoff parameters.

For example, the sending, by the terminal device, the capability information of the terminal device to the network device according to the third indication information includes: the terminal device may include the capability information of the terminal device in terminal-specific RRC (UE specific RRC) signaling, or may be described as the capability information of the terminal device being carried in UE specific RRC signaling sent by the terminal device to the network device. The terminal device may also send the capability information of the terminal device to the network device with other information, for example, the other information may be an RRC message. The RRC message may be a terminal device capability information (UECapabilityInformation) message or a handover preparation information (handerpreparationinformation) message. The terminal device may also send the capability information of the terminal device to the network device through other messages, without limitation.

When the capability information of the terminal device is used to indicate that the terminal device supports M groups of power backoff parameters for power backoff, the second indication information may be used to indicate the terminal device to perform power backoff using N groups of power backoff parameters in the M groups of power backoff parameters. N is a positive integer less than or equal to M.

The capability information of the terminal device may include indication information for indicating M groups of power backoff parameters supported by the terminal device, and the indication information may be used to indicate that the terminal device supports power backoff according to the M groups of power backoff parameters.

In an example, when the third indication information is used to indicate that the terminal device reports the capability information of the terminal device, the capability information of the terminal device sent by the terminal device to the network device may include M flag bits. One of the M flag bits corresponds to M sets of power backoff parameters. When the indication information includes an identification bit, the network device may determine that the terminal device supports power backoff according to a group of power backoff parameters corresponding to the identification bit; when the indication information does not include an identification bit, the network device determines that the terminal device does not support power backoff according to a group of power backoff parameters corresponding to the identification bit.

The flag bit may be a symbol or a number, or a combination of a symbol and a number, and the like, without limitation.

For example, the identification bit corresponding to group 1 is P1, the identification bit corresponding to group 2 is P2, and the identification bit corresponding to group M is PM. When the indication information comprises 'P1', the network device determines that the terminal device supports performing power backoff parameters according to the 1 st group of power backoff parameters; when the indication information does not include "P1", the network device determines that the terminal device does not support performing power backoff parameters according to the 1 st set of power backoff parameters. When the indication information comprises 'P2', the network device determines that the terminal device supports performing power backoff parameters according to the 2 nd group of power backoff parameters; when the indication information does not include "P2", the network device determines that the terminal device does not support performing power backoff parameters according to the 2 nd set of power backoff parameters. When the indication information includes "P_MWhen the power back-off parameter is received, the network equipment determines that the terminal equipment supports the power back-off parameter according to the Mth group of power back-off parameters; when the indication information does not include "P_MAnd when the power back-off parameter is not supported by the terminal equipment, the network equipment determines that the power back-off parameter is not supported according to the Mth group of power back-off parameters.

In another example, when the third indication information is used to indicate multiple sets of power backoff parameters, for example, the third indication information is used to indicate the 1 st set of power backoff parameters and the 2 nd set of power backoff parameters, the capability information of the terminal device sent by the terminal device to the network device includes whether the terminal device supports the 1 st set of power backoff parameters and whether the terminal device supports the 2 nd set of power backoff parameters.

Specifically, the capability information of the terminal device may include a plurality of bits. One bit of the plurality of bits corresponds to a set of power backoff parameters supported by the terminal device. For example, when the value of one bit is T1, the network device determines that the terminal device supports power backoff according to the 1 st group of power backoff parameters; when the value of one bit is T2 or not T1, the network device determines that the terminal device does not support power backoff according to the 1 st group of power backoff parameters; t1 and T2 are integers, and T1 is different from T2.

T1 and T2 may be binary bits "0" and "1", binary bits "1" and "0", or other symbols or numbers, and are not limited.

For example, the capability information of the terminal device includes 2 binary bits, where the 2 binary bits correspond to the 1 st group of power back-off parameters and the 2 nd group of power back-off parameters, a binary bit of "0" indicates that the terminal device does not support power back-off according to the power back-off parameters corresponding to the binary bit, and a binary bit of "1" indicates that the terminal device supports power back-off according to the power back-off parameters corresponding to the binary bit. When the capability information of the terminal device includes 01, the network device determines that the terminal device supports power backoff according to the 1 st group of power backoff parameters but does not support power backoff according to the 2 nd group of power backoff parameters; when the capability information of the terminal device includes 10, the network device determines that the terminal device supports power backoff according to the 2 nd group of power backoff parameters but does not support power backoff according to the 1 st group of power backoff parameters; when the capability information of the terminal device includes 00, the network device determines that the terminal device does not support power backoff according to the 1 st group of power backoff parameters or power backoff according to the 2 nd group of power backoff parameters; when the capability information of the terminal device includes 11, the network device determines that the terminal device supports both power backoff according to the 1 st set of power backoff parameters and power backoff according to the 2 nd set of power backoff parameters.

Based on the implementation manner, the network device can instruct the terminal device to use N groups of power backoff parameters in the M groups to perform power backoff when determining the M groups of power backoff parameters supported by the terminal device, so as to avoid the problem caused by the network side still instructing the terminal device to use the power backoff parameters to perform power backoff when the terminal device does not support a certain power backoff parameter to perform power backoff, and improve the accuracy of the terminal device to use the power backoff parameters to perform power backoff.

Further, in order for the terminal device to determine the current determination condition of the terminal device from multiple aspects according to multiple determination conditions, in the method shown in fig. 3, each determination condition of the N determination conditions may include one or more of the following: location information, mobility information, and altitude information.

Specifically, the implementation of the N determination conditions and the terminal device determining the corresponding power backoff parameter according to each determination condition of the N determination conditions may be described with reference to the following embodiment in fig. 4.

In order to avoid that the device detects the current determination condition in advance or continuously and determines the power consumption caused by the target power back-off parameter from the N sets of power back-off parameters, and reduces the power consumption of the terminal device, in the method shown in fig. 3, when the trigger condition is satisfied, the terminal device detects the current determination condition and determines the target power parameter corresponding to the current determination condition of the terminal device from the N sets of power back-off parameters.

The triggering condition may be that a preset triggering period of the terminal device is met or that the terminal device receives triggering information of the network device.

When the trigger condition is satisfied, the determining, by the terminal device, the target power backoff parameter corresponding to the current determination condition of the terminal device according to the correspondence between the N determination conditions and the N sets of power backoff parameters may further include: the terminal device may actively detect the current determination condition, for example, the terminal device may detect the current determination condition in real time or periodically, and determine a target power back-off parameter corresponding to the current determination condition of the terminal device from the N sets of power back-off parameters according to a correspondence between the N determination conditions and the N sets of power back-off parameters; or, the terminal device may detect the current determination condition according to the trigger instruction, such as: when the terminal device receives the trigger instruction, the terminal device may detect the current determination condition, and determine a target power backoff parameter corresponding to the current determination condition of the terminal device from the N sets of power backoff parameters according to a correspondence between the N determination conditions and the N sets of power backoff parameters. Specifically, this embodiment can be described with reference to embodiment 1 or embodiment 2 below.

In mode 1, the terminal device may actively detect the current trigger condition.

In one example, the terminal device may be preconfigured with a trigger period. The terminal device may detect the current determination condition according to the trigger period. When the trigger condition is that the trigger period is satisfied, the terminal device may re-detect the current determination condition. If the determination condition of the terminal device changes, the terminal device may update the power backoff parameter according to the changed determination condition.

For example, the trigger period is T1. At time t1, the terminal device currently determines that the condition is determination condition 1. Judging that the power back-off parameter corresponding to the condition 1 is a 1 st group of power back-off parameters or a part of power back-off parameters in the 1 st group of power back-off parameters; at time ti + T1, the current determination condition of the terminal device is determination condition 2. And judging that the power back-off parameter corresponding to the condition 2 is the 2 nd group of power back-off parameters or a part of the 2 nd group of power back-off parameters. The terminal device may replace the 1 st set of power back-off parameters or the partial power back-off parameters in the 1 st set of power back-off parameters with the 2 nd set of power back-off parameters or the partial power back-off parameters in the 2 nd set of power back-off parameters.

For example, the terminal device may be provided with a timer. And the terminal equipment detects that the current judging condition is that the distance between the terminal equipment and the network equipment is a second distance at a certain moment. The second distance is less than the first distance. The timer starts timing and records the current time as a first time. When the terminal device sends data to the network side, the terminal device may perform power backoff using the power backoff parameter corresponding to the determination condition 1. At a second time after the first time, the terminal device determines that the difference between the second time and the first time exceeds the trigger period T1 according to the timer, and the terminal device may detect the distance between the current location of the terminal device and the network device again.

If the distance between the current position of the terminal device and the network device is less than or equal to the first distance, the terminal device may continue to use the power backoff parameter corresponding to the determination condition 1 to perform power backoff when sending data to the network side.

If the distance between the current position of the terminal device and the network device is greater than the first distance, the terminal device may determine the power backoff parameter corresponding to the determination condition according to the determination condition that the distance between the terminal device and the network device is greater than the first distance, for example, the determination condition that the distance between the terminal device and the network device is greater than the first distance is determination condition 2. The terminal device may determine, according to the corresponding relationship in table 2, that the power back-off parameter corresponding to the determination condition 2 is the set 2 power back-off parameter or a part of the set 2 power back-off parameters. At T1 after the second time, the terminal device may perform power backoff using the 2 nd set of power backoff parameters when transmitting data to the network device. At a third time instant after the second time instant + T1, the terminal device may again detect the distance between the terminal device and the network device and determine the power backoff parameters used by the terminal device during T1 after the third time instant. By analogy, the terminal device may periodically detect a determination condition of the terminal device according to the trigger period T1, and determine a corresponding power backoff parameter according to the determination condition.

In the mode 2, the terminal device can detect the current judgment condition according to the trigger instruction.

For example, the network device may send indication information to the terminal device, where the indication information is used to trigger the terminal device to detect the current determination condition. Accordingly, the terminal device receives the indication information from the network device. The terminal device may detect the current determination condition based on the indication information. The terminal device may determine whether to update the used power backoff parameter according to the current determination condition. Specifically, the method for determining whether to update the used power backoff parameter by the terminal device according to the current determination condition may refer to the method 1, which is not described herein again. The network device may send the indication information to the terminal device according to a preset time period, which is not limited.

The preset time period may be set as required, and is not limited.

The method of fig. 3 will be described in detail below in conjunction with the communication system of fig. 1.

As shown in fig. 4, for another data transmission method provided in the embodiment of the present application, the method may include:

step 401, the network device sends third indication information to the terminal device.

Step 402, the terminal device receives third indication information from the network device.

And step 403, the terminal device sends the capability information of the terminal device to the network device according to the third indication information. Accordingly, the network device receives the capability information from the terminal device.

And step 404, the network device sends second indication information to the terminal device according to the capability information of the terminal device.

The above steps 401 to 404 may refer to the second possible implementation manner shown in fig. 3, which is not described again.

It should be noted that the steps 401 to 404 are optional steps.

Step 405, the terminal device determines a target power back-off parameter corresponding to the current judgment condition of the terminal device from the N groups of power back-off parameters according to the current judgment condition.

Step 406 may refer to the description of step 301 in fig. 3.

And step 406, the terminal device performs power backoff according to the target power backoff parameter.

Step 406 may refer to the description of step 302 in fig. 3.

Step 407, the terminal device sends data to the network device according to the returned transmission power.

Step 407 may refer to the description of step 303 in fig. 3.

Based on the method shown in fig. 4, since the corresponding determination conditions of the terminal device may be different in different communication scenarios and the corresponding power backoff parameters may be different, in view of this, the present application associates multiple determination conditions with multiple sets of power backoff parameters, so that the terminal device may determine the current determination condition according to the current communication scenario of the terminal device, determine the power backoff parameter corresponding to the current communication scenario of the terminal device from the multiple sets of power backoff parameters according to the current determination condition, implement that the terminal device uses different power backoff parameters to perform power backoff when sending data to the network device in different communication scenarios, and send data to the network side according to the transmission power after power backoff. Therefore, the technical scheme of the embodiment of the present application can ensure that the power backoff parameter used by the terminal device meets the requirement of the communication environment, and meets the data transmission requirement of the terminal device in different communication scenarios.

In the embodiments provided in the present application, the method provided in the embodiments of the present application is introduced from the perspective of a network device, a terminal device, and interaction between the network device and the terminal device. It is understood that, for each network element, for example, a network device and a terminal device, to implement each function in the method provided in the embodiments of the present application, the network device and the terminal device include a hardware structure and/or a software module corresponding to each function. Those of skill in the art will readily appreciate that the present application is capable of hardware or a combination of hardware and computer software implementing the various illustrative algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the network device and the terminal device may be divided into the functional modules according to the above method examples, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

In the case of dividing each functional module according to each function, fig. 5 shows a structure diagram of a communication apparatus 50, the communication apparatus 50 may be a terminal device or a chip or a system on a chip in the terminal device, and the communication apparatus 50 may be used to execute the functions of the terminal device in the above embodiments. The communication device 50 shown in fig. 5 includes: a processing unit 501 and a communication unit 502.

A processing unit 501, configured to determine, according to the current determination condition, a target power back-off parameter corresponding to the current determination condition of the terminal device from the N groups of power back-off parameters, and perform power back-off according to the target power back-off parameter. For example, the processing unit 501 is configured to support the communication apparatus 50 to perform step 301, step 302, and step 405, step 406.

A communication unit 502, configured to send data to the network device according to the power after fallback. For example, the communication unit 502 is used to support the communication device 50 to perform step 303, and step 407.

The specific implementation manner of the communication apparatus 50 may refer to the behavior function of the terminal device in the data transmission method shown in fig. 3 or fig. 4.

In one possible design, the communication device 50 shown in fig. 5 may further include a storage unit 503. The storage unit 503 is configured to store correspondence between N sets of power backoff parameters and N determination conditions.

In one possible design, the communication unit 502 is further configured to receive first indication information from a network device, where the first indication information is used to indicate K sets of power backoff parameters, and K is an integer greater than or equal to N.

In one possible design, the communication unit 502 is further configured to send capability information of the terminal device to the network device, where the capability information of the terminal device is used to indicate M sets of power backoff parameters supported by the terminal device, and M is a positive integer; second indication information is received from the network device.

The second indication information may be as described in the embodiment corresponding to fig. 4, and is not repeated.

In one possible design, the communication unit 502 is further configured to receive third indication information from the network device; and the terminal equipment is also used for sending the capability information of the terminal equipment to the network equipment according to the third indication information.

The third indication information and the capability information of the terminal device may be as described in the embodiment corresponding to fig. 4, and are not described in detail.

In one possible design, the processing unit 501 is specifically configured to, when the trigger condition is met, the terminal device determines, according to the current determination condition, a target power backoff parameter corresponding to the current determination condition of the terminal device from the N sets of power backoff parameters.

The trigger condition may be as described in the embodiment corresponding to fig. 4, and is not described in detail.

As yet another implementable manner, the processing unit 501 in fig. 5 may be replaced by a processor, which may integrate the functions of the processing unit 501. The communication unit 502 in fig. 5 may be replaced by a transceiver or transceiver unit, which may integrate the functionality of the communication unit 502.

Further, when the processing unit 501 is replaced by a processor and the communication unit 502 is replaced by a transceiver or a transceiver unit, the communication device 50 according to the embodiment of the present application may be the communication device shown in fig. 3.

Fig. 6 shows a block diagram of a communication apparatus 60, where the communication apparatus 60 may be a network device or a chip or a system on chip in the network device, and the communication apparatus 60 may be used to perform the functions of the network device involved in the above embodiments. As one implementation, the communication device 60 shown in fig. 6 includes: a communication unit 601.

A communication unit 601, configured to send the first indication information to the terminal device. The first indication information is used for indicating K groups of power back-off parameters to carry out power back-off, K is a positive integer, and the power back-off parameters are parameters used when the terminal equipment carries out power back-off. The communication unit 601 is further configured to receive data from the terminal device, where the data is sent by the terminal device according to the transmit power after power backoff is performed on the terminal device according to a target power backoff parameter, the target power backoff parameter is a power backoff parameter corresponding to a current determination condition of the terminal device, which is determined by the terminal device according to the current determination condition from N sets of power backoff parameters, where N is an integer, and N is greater than 1 and less than or equal to K.

In one possible design, each of the N determination conditions includes one or more of: location information, mobility information, and altitude information.

In one possible design, the communication device 60 may also include a processing unit 602. A processing unit 602, configured to perform the actions performed by the network device in the above method embodiments, for example, the processing unit 602 performs step 401 and step 404 through the communication unit 601, and executes other instructions or actions of the network device.

In one possible design, the communication unit 601 is further configured to receive capability information from the terminal device, where the capability information of the terminal device is used to indicate that the terminal device supports power backoff according to M sets of power backoff parameters, where M is a positive integer; the communication unit 601 is further configured to send second indication information to the terminal device, where the second indication information is used to instruct the terminal device to perform power backoff using the N sets of power backoff parameters, and N is less than or equal to M.

In a possible design, the communication unit 601 is further configured to send third indication information to the terminal device, where the third indication information is used to indicate that the terminal device reports the capability information of the terminal device.

As yet another implementable manner, the communication unit 601 in fig. 6 may be replaced by a transceiver, which may integrate the functionality of the communication unit 601, or a transceiver unit. Further, the communication device 60 shown in fig. 6 may further include a processor and a memory. When the communication unit 601 is replaced by a transceiver or a transceiver unit, the communication device 60 according to the embodiment of the present application may be the communication device shown in fig. 4.

Fig. 7 is a block diagram of a communication system according to an embodiment of the present application, and as shown in fig. 7, the system may include: terminal device 701, network device 702, etc.

Among them, the terminal device 701 has the function of the communication apparatus 50 shown in fig. 5. The network device 702 has the functions of the communication apparatus 60 shown in fig. 6.

In one example, the terminal device 701 is configured to determine, according to a current determination condition, a target power back-off parameter corresponding to the current determination condition of the terminal device from N sets of power back-off parameters, where the N sets of power back-off parameters have a corresponding relationship with N determination conditions, the power back-off parameter is a parameter used when the terminal device performs power back-off, and N is a positive integer greater than 1.

In another example, the network device 702 is configured to send first indication information to the terminal device, where the first indication information is used to indicate K sets of power backoff parameters to perform power backoff, where K is a positive integer, and the power backoff parameter is a parameter used when the terminal device performs power backoff.

Specifically, in this possible design, the specific implementation process of the terminal device 701 may refer to the execution process of the terminal device related to the method embodiments in fig. 3 and fig. 4, and the specific implementation process of the network device 702 may refer to the execution process of the network device related to the method embodiments in fig. 3 and fig. 4.

Based on the system shown in fig. 7, since the corresponding determination conditions of the terminal device may be different in different communication scenarios, and multiple determination conditions have corresponding relationships with multiple sets of power backoff parameters. The terminal device may determine the current determination condition according to the current communication scenario of the terminal device, and then the terminal device may determine a power backoff parameter corresponding to the current communication scenario of the terminal device from the multiple sets of power backoff parameters. That is, the terminal device may determine a power backoff parameter used when sending data in different communication scenarios, and send data to the network side according to the transmission power after the power backoff. Therefore, the data transmission requirements of the terminal equipment under different communication scenes can be met.

The embodiment of the application also provides a computer readable storage medium. All or part of the processes in the above method embodiments may be performed by relevant hardware instructed by a computer program, which may be stored in the above computer-readable storage medium, and when executed, may include the processes in the above method embodiments. The computer-readable storage medium may be an internal storage unit of the terminal device (including the data sending end and/or the data receiving end) in any of the foregoing embodiments, for example, a hard disk or a memory of the terminal device. The computer readable storage medium may also be an external storage device of the terminal device, such as a plug-in hard disk, a Smart Memory Card (SMC), a Secure Digital (SD) card, a flash memory card (flash card), and the like, which are provided on the terminal device. Further, the computer-readable storage medium may include both an internal storage unit and an external storage device of the terminal device. The computer-readable storage medium stores the computer program and other programs and data required by the terminal device. The above-described computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.

It should be noted that the terms "first" and "second" and the like in the description, claims and drawings of the present application are used for distinguishing different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more, "at least two" means two or three and three or more, "and/or" for describing an association relationship of associated objects, meaning that three relationships may exist, for example, "a and/or B" may mean: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical functional division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another device, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, that is, may be located in one place, or may be distributed in a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A data transmission method, characterized in that the data transmission method comprises:

the terminal equipment determines a target power back-off parameter corresponding to the current judging condition of the terminal equipment from N groups of power back-off parameters according to the current judging condition, wherein the N groups of power back-off parameters have corresponding relations with N judging conditions, the power back-off parameters are parameters used when the terminal equipment performs power back-off, and N is a positive integer greater than 1;

and the terminal equipment performs power backoff according to the target power backoff parameter and sends data to network equipment according to the backed-back transmission power.

2. The data transmission method according to claim 1, wherein each of the N determination conditions comprises one or more of: location information, mobility information, and altitude information.

3. The data transmission method according to claim 1 or 2, wherein the correspondence between the N sets of power back-off parameters and the N determination conditions is pre-configured for the terminal device.

4. A method for data transmission according to any one of claims 1-3, characterized in that the method further comprises:

the terminal device receives first indication information from the network device, wherein the first indication information is used for indicating K groups of power backoff parameters, and K is an integer greater than or equal to N.

5. The data transmission method of claim 4, wherein the method further comprises:

the terminal equipment sends the capability information of the terminal equipment to the network equipment, wherein the capability information of the terminal equipment is used for indicating M groups of power backoff parameters supported by the terminal equipment, and M is a positive integer;

and the terminal equipment receives second indication information from the network equipment, wherein the second indication information is used for indicating the terminal equipment to use the N groups of power backoff parameters for power backoff, and N is less than or equal to M.

6. The data transmission method according to claim 5, wherein the sending, by the terminal device, the capability information of the terminal device to the network device includes:

the terminal equipment receives third indication information from the network equipment, wherein the third indication information is used for indicating the terminal equipment to report the capability information of the terminal equipment;

and the terminal equipment sends the capability information of the terminal equipment to the network equipment according to the third indication information.

7. The data transmission method according to any one of claims 1 to 6, wherein the determining, by the terminal device, a target power back-off parameter corresponding to the current determination condition of the terminal device from the N sets of power back-off parameters according to the current determination condition includes:

when the triggering condition is met, the terminal equipment determines a target power back-off parameter corresponding to the current judging condition of the terminal equipment from the N groups of power back-off parameters according to the current judging condition; the triggering condition is that a triggering period is met or a triggering signaling of the network equipment is received, and the triggering period is configured in advance.

8. A data transmission method, characterized in that the data transmission method comprises:

the method comprises the steps that network equipment sends first indication information to terminal equipment, wherein the first indication information is used for indicating K groups of power back-off parameters to carry out power back-off, K is a positive integer, and the power back-off parameters are parameters used when the terminal equipment carries out power back-off;

the network equipment receives data from the terminal equipment, wherein the data is sent by the terminal equipment according to the transmitting power after power backoff is carried out on the terminal equipment according to a target power backoff parameter, the target power backoff parameter is a power backoff parameter which is determined by the terminal equipment from N groups of power backoff parameters and corresponds to the current judgment condition of the terminal equipment according to the current judgment condition, the N groups of power backoff parameters have corresponding relations with the N judgment conditions, and N is an integer less than or equal to K.

9. The data transmission method according to claim 8, wherein each of the N determination conditions comprises one or more of: location information, mobility information, and altitude information.

10. The data transmission method according to claim 8 or 9, characterized in that the method further comprises:

the network equipment receives capability information from the terminal equipment, wherein the capability information of the terminal equipment is used for indicating that the terminal equipment supports power backoff according to M groups of power backoff parameters, and M is a positive integer;

and the network equipment sends second indication information to the terminal equipment according to the capability information of the terminal equipment, wherein the second indication information is used for indicating the terminal equipment to use the N groups of power backoff parameters to carry out power backoff, and N is less than or equal to M.

11. The data transmission method according to claim 10, wherein before the network device receives the capability information from the terminal device, the data transmission method further comprises:

and the network equipment sends third indication information to the terminal equipment, wherein the third indication information is used for indicating the terminal equipment to report the capability information of the terminal equipment.

12. A communication apparatus, characterized in that the communication apparatus comprises: a processing unit and a communication unit;

the processing unit is configured to determine, according to a current determination condition, a target power backoff parameter corresponding to a current determination condition of a terminal device from N sets of power backoff parameters, where the N sets of power backoff parameters have a correspondence with N determination conditions, the power backoff parameter is a parameter used when the terminal device performs power backoff, and N is a positive integer greater than 1;

the processing unit is further configured to perform power backoff according to the target power backoff parameter;

and the communication unit is used for sending data to the network equipment according to the returned transmitting power.

13. The communications apparatus of claim 12, wherein each of the N determination conditions comprises one or more of: location information, mobility information, and altitude information.

14. The apparatus according to claim 12 or 13, wherein the correspondence between the N sets of power back-off parameters and the N determination conditions is pre-configured for the terminal device.

15. The communication device according to any one of claims 12 to 14,

the communication unit is further configured to receive first indication information from the network device, where the first indication information is used to indicate K sets of power backoff parameters, and K is an integer greater than or equal to N.

16. The communication device of claim 15,

the communication unit is further configured to send capability information of the terminal device to the network device, where the capability information of the terminal device is used to indicate M groups of power backoff parameters supported by the terminal device, and M is a positive integer;

the communication unit is further configured to receive second indication information from the network device, where the second indication information is used to indicate the terminal device to perform power backoff using N sets of power backoff parameters, and N is less than or equal to M.

17. The communication device of claim 16,

the communication unit is further configured to receive third indication information from the network device, where the third indication information is used to indicate a terminal device to report capability information of the terminal device;

the communication unit is further configured to send capability information of the terminal device to the network device according to the third indication information.

18. The communication device according to any one of claims 12 to 16,

the processing unit is specifically configured to determine, when a trigger condition is met, a target power backoff parameter corresponding to a current judgment condition of the terminal device from the N groups of power backoff parameters according to the current judgment condition; wherein the triggering condition is that a triggering period is satisfied or a triggering signaling of the network device is received; the trigger period is preconfigured.

19. A communication apparatus, characterized in that the communication apparatus comprises a communication unit;

the communication unit is configured to send first indication information to a terminal device, where the first indication information is used to indicate K groups of power backoff parameters to perform power backoff, where K is a positive integer, and the power backoff parameters are parameters used when the terminal device performs power backoff;

the communication unit is further configured to receive data from the terminal device, where the data is sent by the terminal device according to a transmission power after power backoff is performed on the terminal device according to a target power backoff parameter, the target power backoff parameter is a power backoff parameter corresponding to a current determination condition of the terminal device, and is determined by the terminal device from N sets of power backoff parameters according to the current determination condition, where N is an integer less than or equal to K, and the N sets of power backoff parameters have a corresponding relationship with the N determination conditions.

20. The communications apparatus of claim 19, wherein each of the N determination conditions comprises one or more of: location information, mobility information, and altitude information.

21. The communication device according to claim 19 or 20,

the communication unit is further configured to receive capability information from the terminal device, where the capability information of the terminal device is used to indicate that the terminal device supports power backoff according to M groups of power backoff parameters, where M is a positive integer;

the communication unit is further configured to send second indication information to the terminal device, where the second indication information is used to indicate that the terminal device uses the N sets of power backoff parameters to perform power backoff, and N is less than or equal to M.

22. The communication device of claim 21,

the communication unit is further configured to send third indication information to a terminal device, where the third indication information is used to indicate that the terminal device reports capability information of the terminal device.

23. A communications device, characterized in that it comprises means for carrying out the data transmission method according to any one of claims 1 to 7 or according to any one of claims 8 to 11.

24. A communications device comprising a processor and interface circuitry for receiving and transmitting signals from or to other communications devices than the communications device, the processor being arranged to implement, by means of logic circuitry or executing code instructions, a data transmission method as claimed in any one of claims 1 to 7 or any one of claims 8 to 11.

25. A computer-readable storage medium, in which a computer program or instructions are stored which, when executed by a communication apparatus, implement the data transmission method according to any one of claims 1 to 7 or according to any one of claims 8 to 11.