CN113784427B

CN113784427B - Power control method and device

Info

Publication number: CN113784427B
Application number: CN202110951396.8A
Authority: CN
Inventors: 巴赛尔·加拉德; 曹亘; 韩潇; 贺琳; 李福昌
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2023-06-06
Anticipated expiration: 2041-08-18
Also published as: CN113784427A

Abstract

The application provides a power control method and a device, which relate to the field of communication and can ensure that the coverage area of an uplink channel of terminal equipment is as large as possible and the transmission performance is as good as possible when power is backed off. The method comprises the following steps: the network device determines whether the maximum transmitting power of the terminal device is larger than the first power, and when the maximum transmitting power of the terminal device is larger than the first power and the uplink transmitting power of the auxiliary carrier exists in the plurality of carriers and is larger than the second power, the network device downloads the uplink transmitting power of the corresponding carrier according to the sequence of the first auxiliary carrier and the main carrier until the maximum transmitting power of the terminal device is not larger than the first power. The maximum transmitting power of the terminal equipment is determined according to the uplink transmitting power supported by each carrier in a plurality of carriers supported by the terminal equipment and the duty ratio value distributed by the network equipment for each carrier, wherein the plurality of carriers comprise a main carrier and one or more auxiliary carriers.

Description

Power control method and device

Technical Field

The present disclosure relates to the field of communications, and in particular, to a power control method and apparatus.

Background

In the prior art, a terminal device can work with a transmitting power of power class 2 (26 db mw (decibel relative to one milliwatt, dBm)), and the coverage area and transmission performance of an uplink channel of a mobile communication network can be improved by increasing the transmitting power of the terminal device compared with the transmitting power of the terminal device with a default power class 3 (23 dBm), thereby improving the user experience of cell edge users.

In the time division duplex (time division duplex, TDD) single carrier mode or the 5G non-independent Networking (NSA) mode of the fifth generation (5th generation,5G) mobile communication network independent networking (SA), when the terminal device works with the transmission power of the power level 2 (26 dBm), if the electromagnetic wave absorption ratio of the terminal device exceeds the specified limit value, the terminal device needs to directly return the transmission power to the default power level 3 (23 dBm) at this time, so as to meet the requirement of the electromagnetic wave absorption ratio of the human body, thereby avoiding the harm of the higher transmission power to the human body.

However, the scheme of directly backing up the uplink transmit power of the terminal device to the default power level 3 (23 dBm) in the TDD single carrier mode of the current 5G SA or the 5G NSA mode is too conservative. In 5G SA carrier aggregation mode, the third generation partnership project (third generation partnership project,3 GPP) specifications have supported a high transmit power level (power level 2 (26 dBm)) for partial carrier aggregation. In this scenario, how to control the uplink transmission power of the terminal device to meet the electromagnetic wave absorption ratio requirement of the human body is a current urgent problem to be solved.

Disclosure of Invention

The application provides a power control method and a device, which can ensure that the coverage area of an uplink channel of terminal equipment is as large as possible and the transmission performance is as good as possible when in power back-off.

In order to achieve the above purpose, the present application adopts the following technical scheme:

in a first aspect, a power control method is provided, where the method may be performed by a network device or a terminal device, or may be performed by a component of the network device or the terminal device, for example, a processor, a chip, or a chip system of the network device or the terminal device, or may be implemented by a logic module or software that can implement all or part of a function of the network device or the terminal device, where the method is described herein by taking the network device or the terminal device as an example. The method comprises the following steps: the network device or the terminal device determines whether the maximum transmitting power of the terminal device is larger than the first power, and when the maximum transmitting power of the terminal device is larger than the first power and the uplink transmitting power of the auxiliary carrier exists in the plurality of carriers and is larger than the second power, the network device or the terminal device downwards responds to the uplink transmitting power of the carrier according to the sequence of the auxiliary carrier and the main carrier until the maximum transmitting power of the terminal device is not larger than the first power. The maximum transmitting power of the terminal equipment is determined according to the uplink transmitting power supported by each carrier in a plurality of carriers supported by the terminal equipment and the duty ratio value distributed by the network equipment for each carrier, wherein the plurality of carriers comprise a main carrier and one or more auxiliary carriers.

Based on this scheme, since the RRC connection message is transmitted only on the primary carrier and the PUCCH control information is also transmitted only on the uplink primary carrier, it is necessary to preferentially secure uplink transmission power of the primary carrier. In the power control method provided by the embodiment of the invention, when the maximum transmitting power of the terminal device is larger than the first power and the uplink transmitting power of the auxiliary carrier is larger than the second power in the plurality of carriers, the network device or the terminal device preferably adjusts the uplink transmitting power of the auxiliary carrier downwards, and then adjusts the uplink transmitting power of the main carrier downwards, so that the uplink transmitting power of the main carrier can be ensured to be as large as possible, the coverage area of an uplink channel of the terminal device is ensured to be as large as possible, the transmission performance is as good as possible, and adverse effects of the transmitting power back-off on user experience of cell edge users are further reduced as much as possible. In addition, in the embodiment of the present application, by comparing the uplink transmission power of the auxiliary carrier with the second power (i.e., the lowest uplink transmission power required by the single carrier), the network device or the terminal device only adjusts the uplink transmission power of the auxiliary carrier with the uplink transmission power greater than the second power, so that the uplink transmission power of the auxiliary carrier can be prevented from being adjusted to be lower than the second power, thereby ensuring that the coverage area of the uplink channel of the terminal device is as large as possible, the transmission performance is as good as possible, and further reducing the adverse effect of the transmission power backoff on the user experience of the cell edge user as much as possible.

With reference to the first aspect, in some implementations of the first aspect, the multiple carriers include an auxiliary carrier, and the network device or the terminal device downregulates uplink transmission power of the corresponding carrier in order of first auxiliary carrier and then main carrier until the maximum transmission power of the terminal device is not greater than the first power, including: step S11: the network equipment or the terminal equipment downwards adjusts the current uplink transmitting power of the auxiliary carrier by a first set step length to obtain a first uplink transmitting power; step S12: if the first uplink transmission power is not less than the second power, the network equipment or the terminal equipment determines the current maximum transmission power of the terminal equipment according to the first uplink transmission power, the uplink transmission power supported by the main carrier and the duty ratio value allocated by the network equipment for each carrier; step S13: if the first uplink transmission power is smaller than the second power, the network equipment or the terminal equipment up-regulates the current uplink transmission power of the auxiliary carrier to the second power, and determines the current maximum transmission power of the terminal equipment according to the second power, the uplink transmission power supported by the main carrier and the duty ratio value allocated by the network equipment for each carrier; step S14: if the current maximum transmission power of the terminal device is greater than the first power, if the uplink transmission power of the auxiliary carrier is greater than the second power, the network device or the terminal device repeatedly executes steps S11-S13; if the uplink transmission power of the auxiliary carrier is not greater than the second power, the network device or the terminal device adjusts the current uplink transmission power of the main carrier until the maximum transmission power of the terminal device is not greater than the first power.

With reference to the first aspect, in some implementations of the first aspect, the plurality of carriers includes a plurality of auxiliary carriers, and the network device or the terminal device decreases uplink transmission power of the corresponding carriers in order of first auxiliary carrier and then main carrier until the maximum transmission power of the terminal device is not greater than the first power, including: step S21: the network equipment or the terminal equipment downwards adjusts the current uplink transmission power of a first auxiliary carrier in the plurality of auxiliary carriers by a first set step length to obtain second uplink transmission power, wherein the first auxiliary carrier is the auxiliary carrier with highest carrier priority in carriers with the current uplink transmission power of the auxiliary carrier being larger than the second power in the plurality of carriers; step S22: if the second uplink transmission power is not less than the second power, the network device or the terminal device determines the current maximum transmission power of the terminal device according to the second uplink transmission power, uplink transmission power supported by carriers except the first auxiliary carrier in the plurality of auxiliary carriers and a duty ratio value allocated by the network device for each carrier; step S23: if the second uplink transmission power is smaller than the second power, the network device or the terminal device up-regulates the current uplink transmission power of the first auxiliary carrier to the second power, and determines the current maximum transmission power of the terminal device according to the second power, the uplink transmission power supported by the carriers except the first auxiliary carrier in the plurality of auxiliary carriers and the duty ratio value distributed by the network device for each carrier; step S24: if the current maximum transmission power of the terminal device is greater than the first power, if the uplink transmission power of the first auxiliary carrier is greater than the second power, the network device or the terminal device repeatedly executes steps S21-S23; if the uplink transmission power of the first auxiliary carrier is not greater than the first power, and if the uplink transmission power of the auxiliary carrier is greater than the second power in the multiple carriers, the network device or the terminal device repeatedly executes the steps S21-S23 until the current uplink transmission power of the auxiliary carrier is not greater than the second power in the multiple carriers, and then the network device or the terminal device adjusts the current uplink transmission power of the main carrier until the maximum transmission power of the terminal device is not greater than the first power.

With reference to the first aspect, in some implementations of the first aspect, in a case where a maximum transmission power of the terminal device is greater than the first power and an uplink transmission power of no secondary carrier in the plurality of carriers is greater than the second power, the network device or the terminal device adjusts a current uplink transmission power of the primary carrier. Based on the scheme, the network device or the terminal device does not adjust the uplink transmission power of the auxiliary carrier with the uplink transmission power smaller than or equal to the second power, so that the uplink transmission power of the auxiliary carrier is prevented from being adjusted to be lower than the second power, the coverage area of an uplink channel of the terminal device can be ensured to be as large as possible, the transmission performance is as good as possible, and adverse effects of transmission power rollback on user experience of cell edge users are reduced as much as possible.

With reference to the first aspect, in certain implementation manners of the first aspect, the adjusting, by the network device or the terminal device, a current uplink transmission power of the primary carrier includes: step S31: the network equipment or the terminal equipment downwards adjusts the current uplink transmitting power of the main carrier by a second set step length to obtain a third uplink transmitting power; step S32: if the third uplink transmission power is not less than the second power, the network equipment or the terminal equipment determines the current maximum transmission power of the terminal equipment according to the third uplink transmission power, the uplink transmission power supported by the auxiliary carrier and the duty ratio value allocated by the network equipment for each carrier; step S33: if the third uplink transmission power is smaller than the second power, the network device or the terminal device up-regulates the current uplink transmission power of the main carrier to the second power, and determines the current maximum transmission power of the terminal device according to the second power, the uplink transmission power supported by the auxiliary carrier and the duty ratio value allocated by the network device for each carrier; step S34: and if the current maximum transmission power of the terminal equipment is larger than the first power, if the uplink transmission power of the main carrier is larger than the second power, the network equipment or the terminal equipment repeatedly executes the steps S31-S33 until the maximum transmission power of the terminal equipment is not larger than the first power.

In a second aspect, a communication device is provided for implementing the various methods described above. The communication means may be or comprise a network device or a terminal device as described in the first aspect, or comprise a device such as a chip as described in the network device or the terminal device. The communication device comprises corresponding modules, units or means (means) for realizing the method, and the modules, units or means can be realized by hardware, software or realized by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the functions described above.

In some possible designs, the communication device may include a determination module and a processing module. The determining module is configured to implement the determining function in the first aspect and any possible implementation manner thereof. The processing module may be configured to implement the processing functions of the first aspect and any possible implementation manner thereof.

In a third aspect, there is provided a communication apparatus comprising: a processor and a memory; the memory is configured to store computer instructions that, when executed by the processor, cause the communication device to perform the method of any of the above aspects. The communication means may be or comprise a network device or a terminal device as described in the first aspect, or comprise a device such as a chip as described in the network device or the terminal device.

In a fourth aspect, there is provided a communication apparatus comprising: a processor and a communication interface; the communication interface is used for communicating with a module outside the communication device; the processor is configured to execute a computer program or instructions to cause the communication device to perform the method of any of the above aspects. The communication means may be or comprise a network device or a terminal device as described in the first aspect, or comprise a device such as a chip as described in the network device or the terminal device.

In a fifth aspect, there is provided a communication apparatus comprising: interface circuitry and a processor, the interface circuitry being code/data read-write interface circuitry for receiving computer-executable instructions (the computer-executable instructions being stored in memory, possibly read directly from the memory, or possibly via other devices) and transmitting to the processor; the processor is configured to execute computer-executable instructions to cause the communication device to perform the method of any of the above aspects. The communication means may be or comprise a network device or a terminal device as described in the first aspect, or comprise a device such as a chip as described in the network device or the terminal device.

In a sixth aspect, there is provided a communication apparatus comprising: at least one processor; the processor is configured to execute a computer program or instructions to cause the communication device to perform the method of any of the above aspects. The communication means may be or comprise a network device or a terminal device as described in the first aspect, or comprise a device such as a chip as described in the network device or the terminal device.

In some possible designs, the communication device includes a memory for holding necessary program instructions and data. The memory may be coupled to the processor or may be separate from the processor.

In some possible designs, the communication device may be a chip or a system-on-chip. When the device is a chip system, the device can be formed by a chip, and can also comprise the chip and other discrete devices.

In a seventh aspect, there is provided a computer readable storage medium having instructions stored therein which, when run on a communications device, cause the communications device to perform the method of any of the above aspects.

In an eighth aspect, there is provided a computer program product comprising instructions which, when run on a communications apparatus, cause the communications apparatus to perform the method of any of the above aspects.

It will be appreciated that when the communication device provided in any one of the second to eighth aspects is a chip, the above-mentioned transmitting action/function may be understood as outputting information, and the above-mentioned receiving action/function may be understood as inputting information.

The technical effects of any one of the second to eighth aspects may be referred to the technical effects of the different designs in the first aspect, and are not described herein.

Drawings

Fig. 1 is a schematic structural diagram of a communication system provided in the present application;

fig. 2 is a schematic structural diagram of a network device and a terminal device provided in the present application;

fig. 3 is a schematic flow chart of a power control method provided in the present application;

fig. 4 is a schematic diagram of a flow chart of secondary carrier power adjustment in the power control method provided in the present application;

fig. 5 is a second schematic flow chart of secondary carrier power adjustment in the power control method provided in the present application;

fig. 6 is a schematic flow chart of main carrier power adjustment in the power control method provided in the present application;

fig. 7 is a schematic structural diagram of a communication device provided in the present application.

Detailed Description

In the description of the present application, unless otherwise indicated, "/" means that the associated object is an "or" relationship, e.g., a/B may represent a or B; the term "and/or" in this application is merely an association relation describing an association object, and means that three kinds of relations may exist, for example, a and/or B may mean: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural.

In the description of the present application, unless otherwise indicated, "a plurality" means two or more than two. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", and the like are used to distinguish the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ. Meanwhile, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion that may be readily understood.

It is appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, various embodiments are not necessarily referring to the same embodiments throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present application, the sequence number of each process does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

It is to be understood that in this application, the terms "when …," "if," and "if" are used to indicate that the corresponding process is to be performed under some objective condition, and are not intended to limit the time, nor do they require that the acts be performed with a judgment, nor are they intended to imply that other limitations are present.

The term "simultaneously" in the present application is understood to mean at the same point in time, also during a period of time, and also during the same period.

It can be appreciated that some optional features of the embodiments of the present application may be implemented independently in some scenarios, independent of other features, such as the scheme on which they are currently based, to solve corresponding technical problems, achieve corresponding effects, or may be combined with other features according to requirements in some scenarios. Accordingly, the apparatus provided in the embodiments of the present application may also implement these features or functions accordingly, which is not described herein.

Throughout this application, unless specifically stated otherwise, identical or similar parts between the various embodiments may be referred to each other. In the various embodiments and the various implementation/implementation methods in the various embodiments in this application, if no special description and logic conflict exist, terms and/or descriptions between different embodiments and between the various implementation/implementation methods in the various embodiments may be consistent and may be mutually referred to, technical features in the different embodiments and the various implementation/implementation methods in the various embodiments may be combined to form new embodiments, implementations, implementation methods, or implementation methods according to their inherent logic relationships. The embodiments of the present application described below do not limit the scope of the present application.

The technical solution of the embodiments of the present application may be used in various communication systems, where the communication system may be a 3GPP communication system, for example, a long term evolution (long term evolution, LTE) system, a 5G mobile communication system, a new air interface (NR) system, a new air interface internet of vehicles (vehicle to everything, NR V2X) system, a system of LTE and 5G hybrid networking, or a device-to-device (D2D) communication system, a machine-to-machine (machine to machine, M2M) communication system, an internet of things (Internet of Things, ioT), and other next generation communication systems, and may also be a non-3 GPP communication system, without limitation.

The technical solution of the embodiment of the application can be applied to various communication scenes, for example, one or more of the following communication scenes: enhanced mobile broadband (enhanced mobile broadband, emmbb), ultra-reliable low latency communication (ultra reliable low latency communication, URLLC), machine type communication (machine type communication, MTC), large-scale machine type communication (massive machine type communications, mctc), D2D, V2X, and IoT, among other communication scenarios.

The above communication system and communication scenario to which the present application is applied are merely examples, and the communication system and communication scenario to which the present application is applied are not limited thereto, and are collectively described herein, and are not described in detail.

Referring to fig. 1, a communication system 10 is provided in an embodiment of the present application. The communication system 10 includes at least one network device 20 (only one network device is illustratively shown in fig. 1) and one or more terminal devices 30 connected to the network device 20. Alternatively, different terminal devices 30 may communicate with each other.

In some embodiments, the terminal device 30 referred to herein may be a device for implementing a communication function. A terminal device may also be called a User Equipment (UE), a terminal, an access terminal, a subscriber unit, a subscriber station, a Mobile Station (MS), a remote station, a remote terminal, a Mobile Terminal (MT), a user terminal, a wireless communication device, a user agent, a user equipment, or the like. The terminal device may be, for example, a wireless terminal or a wired terminal in an IoT, V2X, D2D, M M, 5G network, or a future evolved public land mobile network (public land mobile network, PLMN). The wireless terminal can be a device with wireless transceiving function, can be deployed on land, and comprises indoor or outdoor, handheld or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.).

By way of example, the terminal device 30 may be an unmanned aerial vehicle, an IoT device (e.g., sensor, electricity meter, water meter, etc.), a V2X device, a Station (ST) in a wireless local area network (wireless local area networks, WLAN), a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA) device, a handheld device with wireless communication functionality, a computing device or other processing device connected to a wireless modem, an on-board device, a wearable device (which may also be referred to as a wearable smart device), a tablet or a computer with wireless transceiver functionality, a Virtual Reality (VR) terminal, a wireless terminal in an industrial control (industrial control), a wireless terminal in an unmanned aerial vehicle (self-drive), a wireless terminal in a remote medical (remote medium) system (smart grid), a wireless terminal in a transportation security (transportation safety), a smart city (smart) terminal, a wireless to-vehicle-capability of a wireless vehicle-to-unmanned aerial vehicle (UAV 2, a vehicle-to-vehicle-a wireless communication capability, a vehicle-to-a vehicle, and the like. The terminal may be mobile or fixed, and is not particularly limited in this application.

In some embodiments, the network device 20 according to the present application is a device for accessing the terminal device 30 to a wireless network, and may be an evolved base station (evolutional Node B, eNB or eNodeB) in an LTE or evolved LTE system (LTE-Advanced, LTE-a), such as a conventional macro base station eNB and a micro base station eNB in a heterogeneous network scenario; or may be a next generation node B (next generation node B, gnob or gNB) in a 5G system; or may be a transmission reception point (transmission reception point, TRP); or may be a base station in a future evolved PLMN; or may be a broadband network service gateway (broadband network gateway, BNG), aggregation switch or non-3 GPP access device; or may be a radio controller in a cloud radio access network (cloud radio access network, CRAN); or may be an Access Point (AP) in a WiFi system; or may be a wireless relay node or a wireless backhaul node; or may be a device that implements a base station function in IoT, a device that implements a base station function in V2X, a device that implements a base station function in D2D, or a device that implements a base station function in M2M, which embodiments of the present application are not specifically limited.

By way of example, the base station in the embodiments of the present application may include various forms of base stations, for example: macro base stations, micro base stations (also referred to as small stations), relay stations, access points, etc., as embodiments of the present application are not specifically limited.

In some embodiments, the network device 20 referred to herein may also refer to a Central Unit (CU) or a Distributed Unit (DU), or the network device may also be composed of CU and DU. Multiple DUs may share one CU. One DU may also connect multiple CUs. CUs and DUs can be understood as a division of the network device from a logical function perspective. The CU and the DU may be physically separated or may be disposed together, which is not specifically limited in the embodiment of the present application. The CU and the DU may be connected by an interface, for example, an F1 interface. CUs and DUs may be partitioned according to the protocol layers of the wireless network. For example, functions of a radio resource control (radio resource control, RRC) protocol layer, a service data adaptation protocol stack (service data adaptation protocol, SDAP) protocol layer, and a packet data convergence layer protocol (packet data convergence protocol, PDCP) protocol layer are provided in the CU, while functions of a radio link control (radio link control, RLC) protocol layer, a medium access control (media access control, MAC) protocol layer, a Physical (PHY) protocol layer, and the like are provided in the DU.

It will be appreciated that the partitioning of CU and DU processing functions in accordance with such protocol layers is merely an example, and may be partitioned in other ways.

For example, a CU or DU may be divided into functions with more protocol layers. For example, a CU or DU may also be divided into partial processing functions with protocol layers. In one design, part of the functions of the RLC layer and the functions of the protocol layers above the RLC layer are set at CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are set at DU. In another design, the functionality of a CU or DU may also be partitioned by traffic type or other system requirements. For example, according to the time delay division, the function of processing time which needs to meet the time delay requirement is set in the DU, and the function which does not need to meet the time delay requirement is set in the CU. In another design, a CU may also have one or more functions of the core network. One or more CUs may be centrally located, as well as separately located. For example, the CUs can be arranged on the network side to facilitate centralized management. The DU may have multiple radio functions, or the radio functions may be set remotely.

In some embodiments, a CU may consist of a CU control plane (CU-CP) and a CU user plane (CU-UP), which may be understood as partitioning the CU from a logical function perspective. Wherein, the CU-CP and the CU-UP can be divided according to protocol layers of the wireless network, for example, the functions of the PDCP protocol layers corresponding to the RRC protocol layer and the signaling radio bearers (signal radio bearer, SRB) are arranged in the CU-CP, and the functions of the PDCP protocol layers corresponding to the data radio bearers (data radio bearer, DRB) are arranged in the CU-UP. Furthermore, the functionality of the SDAP protocol layer may also be provided in the CU-UP.

In some embodiments, the network device 20 and the terminal device 30 may also be referred to as a communication apparatus, which may be a general purpose device or a special purpose device, which is not specifically limited in this embodiment.

As shown in fig. 2, a schematic structural diagram of a network device 20 and a terminal device 30 according to an embodiment of the present application is provided.

Wherein the terminal device 30 comprises at least one processor (illustrated in fig. 2 by way of example as comprising one processor 301) and at least one transceiver (illustrated in fig. 2 by way of example as comprising one transceiver 303). Further, the terminal device 30 may also include at least one memory (illustrated in fig. 2 as including one memory 302, for example), at least one output device (illustrated in fig. 2 as including one output device 304, for example), and at least one input device (illustrated in fig. 2 as including one input device 305, for example).

The processor 301, the memory 302 and the transceiver 303 are connected by a communication line. The communication line may include a pathway to communicate information between the aforementioned components.

The processor 301 may be a general purpose central processing unit (central processing unit, CPU), special purpose processor, microprocessor, application Specific Integrated Circuit (ASIC), or one or more integrated circuits for controlling the execution of the programs of the present application. For example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., network equipment, terminal equipment, chips of terminal equipment and network equipment, etc.), execute software programs, and process data of the software programs. In a specific implementation, the processor 301 may also include multiple CPUs, as an embodiment, and the processor 301 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, or processing cores for processing data (e.g., computer program instructions).

The memory 302 may be a device having a memory function. For example, but not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), a compact disc read-only memory (compact disc read-only memory) or other optical disk storage, optical disk storage (including compact discs, laser discs, optical discs, digital versatile discs, blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 302 may be stand alone and be connected to the processor 301 by a communication line. Memory 302 may also be integrated with processor 301.

The memory 302 is used for storing computer-executable instructions for executing the embodiments of the present application, and is controlled by the processor 301 to execute the instructions. Specifically, the processor 301 is configured to execute computer-executable instructions stored in the memory 302, thereby implementing the power control method described in the embodiments of the present application.

Alternatively, in the present application, the processor 301 may perform functions related to processing in the power control method provided in the present application, and the transceiver 303 is responsible for communicating with other devices or communication networks, which is not specifically limited in the embodiment of the present application.

Computer-executable instructions referred to herein may also be referred to as application program code or computer program code, which are not specifically limited in this application.

The transceiver 303 may use any transceiver-like device for communicating with other devices or communication networks, such as ethernet, radio access network (radio access network, RAN), or wireless local area network (wireless local area networks, WLAN), etc. The transceiver 303 includes a transmitter (Tx) and a receiver (Rx).

The output device 304 communicates with the processor 301 and may display information in a variety of ways. For example, the output device 304 may be a liquid crystal display (liquid crystal display, LCD), a light emitting diode (light emitting diode, LED) display device, a Cathode Ray Tube (CRT) display device, or a projector (projector), or the like.

The input device 305 communicates with the processor 301 and may accept user input in a variety of ways. For example, the input device 305 may be a mouse, a keyboard, a touch screen device, a sensing device, or the like.

The network device 20 includes at least one processor (illustrated in fig. 2 by way of example as including one processor 201) and at least one transceiver (illustrated in fig. 2 by way of example as including one transceiver 203). Further, the network device 20 may also include at least one memory (illustrated in fig. 2 as including one memory 202 by way of example) and at least one network interface (illustrated in fig. 2 as including one network interface 204 by way of example). Wherein the processor 201, the memory 202, the transceiver 203 and the network interface 204 are connected by communication lines. The network interface 204 is used to connect with a core network device through a link (e.g., S1 interface) or connect with a network interface of another network device (not shown in fig. 2) through a wired or wireless link (e.g., X2 interface), which is not specifically limited in this embodiment of the present application. In addition, the description of the processor 201, the memory 202 and the transceiver 203 may refer to the description of the processor 301, the memory 302 and the transceiver 303 in the terminal device 30, which are not repeated herein.

It will be appreciated that the structure shown in fig. 2 does not constitute a specific limitation on the terminal device 30 and the network device 20. For example, in other embodiments of the present application, terminal device 30 and network device 20 may include more or fewer components than shown, or may combine certain components, or may split certain components, or may have different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The power control method provided in the embodiment of the present application may be executed by the network device 20 or may also be executed by the terminal device 30, and in the following, with reference to the accompanying drawings, the network device 20 shown in fig. 2 is taken as an execution body, or the terminal device 30 is taken as an execution body as an example, where the power control method provided in the embodiment of the present application is respectively described in an expanding manner.

It is to be understood that in the embodiments of the present application, the execution subject may perform some or all of the steps in the embodiments of the present application, these steps or operations are only examples, and the embodiments of the present application may also perform other operations or variations of various operations. Furthermore, the various steps may be performed in a different order presented in accordance with embodiments of the present application, and it is possible that not all of the operations in the embodiments of the present application may be performed.

It can be appreciated that the interaction mechanism between the network device and the terminal device in the embodiments of the present application may be appropriately modified, so as to apply to interactions between the CU or the DU and the terminal device.

It should be noted that, in the embodiments described below, the names of the messages between the devices or the names of the parameters in the messages are only an example, and may be other names in specific implementations, which are not limited in particular in the embodiments of the present application.

Taking the network device 20 as an execution body, as shown in fig. 3, a power control method provided in an embodiment of the present application includes the following steps:

s301, the network device determines whether the maximum transmitting power of the terminal device is larger than the first power.

The maximum transmitting power of the terminal equipment is determined according to the uplink transmitting power supported by each carrier in a plurality of carriers supported by the terminal equipment and the duty ratio value distributed by the network equipment for each carrier. The plurality of carriers supported by the terminal device include a primary carrier and one or more secondary carriers.

As a possible implementation, the maximum transmit power of the terminal device in step S301 satisfies the following formula (1):

where Dutyi is the duty cycle value of a certain carrier,

a value of transmit power supported for the carrier.

For example, the terminal device 1 supports an uplink carrier aggregation function (ca_n1a-n 41A-n 78A) of n1 (2.1 GHz) +n41 (2.6 GHz) +n78 (3.5 GHz) frequency band, and the n41 frequency band is a primary carrier. Wherein the n1 frequency band supports an uplink transmission power of 23dBm, the n41 frequency band and the n78 frequency band support an uplink transmission power of 26dBm, and the network device allocates duty cycle values of 50%, 20% and 40% to the n1 frequency band, the n41 frequency band and the n78 frequency band carriers, respectively. Based on the above, the maximum transmission power of the terminal device 1 is 50%/23 dbm+20%/26 dbm+40%/26 dbm=25.3 dBm.

It may be understood that in the embodiment of the present application, the uplink transmission power supported by the carrier may be replaced by the maximum uplink transmission power supported by the carrier, which may be replaced by each other in the present application, and are collectively described herein, which is not described in detail below.

As a possible implementation, the first power may be a limit value of the electromagnetic wave absorption ratio (specific absorption rate, SAR), for example, the first power may be 23dBm, or the first power may be 200mW as the 23dBm may be converted to 200 milliwatts (mW).

It should be noted that, since the SAR limit value is not necessarily satisfied every time, as long as the average transmission power in each radio frame length is less than or equal to the SAR limit value, the maximum transmission power of the terminal device can be regarded as being less than or equal to the SAR limit value, and thus, when the maximum transmission power of the terminal device is

And meets SAR limits.

S302, when the maximum transmitting power of the terminal equipment is larger than the first power and the uplink transmitting power of the auxiliary carrier exists in the plurality of carriers and is larger than the second power, the network equipment downwards modulates the uplink transmitting power of the carriers according to the sequence of the auxiliary carrier and the main carrier until the maximum transmitting power of the terminal equipment is not larger than the first power.

As one possible implementation, the second power is used to indicate the lowest uplink transmit power required for a single carrier.

As one possible implementation, the second power may be determined according to the first power and the number of multiple carriers supported by the terminal device.

Illustratively, the second power satisfies the following equation (2):

Power _thres. =2 mmmW/n, equation (2)

Wherein Power is a Power _thres. For the second power, 200mW is the first power, i.e. the limit value of SAR, and n is the number of multiple carriers supported by the terminal device. The above formula (2) can ensure that the sum of the threshold powers of the component carriers is not more than 23dBm, and ensure that the SAR limit is not exceeded.

For example, taking the terminal device 1 in the above step S301 as an example, the terminal device 1 supports 3 carriers of n1 frequency band, n41 frequency band, and n78 frequency band, that is, n is 3, and then the second Power _thres. ＝200mW/3＝66.7mW＝18.2dBm。

Since the RRC connection message is only transmitted on the primary carrier and the PUCCH control information is also only transmitted on the uplink primary carrier, it is necessary to preferentially secure uplink transmission power of the primary carrier. In the power control method provided by the embodiment of the application, when the maximum transmission power of the terminal device is greater than the first power and the uplink transmission power of the auxiliary carrier exists in the plurality of carriers and is greater than the second power, the network device preferably adjusts the uplink transmission power of the auxiliary carrier downwards and then adjusts the uplink transmission power of the main carrier downwards, so that the uplink transmission power of the main carrier can be ensured to be as great as possible. In addition, in the embodiment of the application, the network device compares the uplink transmission power of the auxiliary carrier with the second power (i.e. the lowest uplink transmission power required by a single carrier), and only adjusts the uplink transmission power of the auxiliary carrier with the uplink transmission power larger than the second power, so that the uplink transmission power of the auxiliary carrier can be prevented from being adjusted to be lower than the second power, the coverage area of an uplink channel of the terminal device can be ensured to be as large as possible, the transmission performance is as good as possible, and adverse effects of transmission power rollback on user experience of cell edge users are further reduced as much as possible.

Optionally, before step S301, the power control method provided in the embodiment of the present application may further include: the network device receives a first message from the terminal device, where the first message includes uplink transmit power supported by each carrier of the terminal device, and the first message may be a scheduling application.

Optionally, after step S302, the power control method provided in the embodiment of the present application may further include: and the network equipment sends the adjusted uplink transmission power of the carrier wave and the duty ratio value allocated by the network equipment for each carrier wave to the terminal equipment so that the terminal equipment carries out uplink information transmission according to the current uplink transmission power of the supported multiple carrier waves and the duty ratio value allocated by the network equipment for each carrier wave. Optionally, the network device may further send uplink transmit power supported by the unregulated carrier to the terminal device, which is not specifically limited in the embodiment of the present application.

In the embodiment of the present application, the network device may send the adjusted uplink transmission power of the carrier and the duty ratio value allocated by the network device to each carrier to the terminal device at the same time; or the duty ratio value allocated by the network device for each carrier is sent to the terminal device, and then the adjusted uplink transmitting power of the carrier is sent to the terminal device; or, the adjusted uplink transmission power of the carrier may be sent to the terminal device, and then the duty ratio value allocated by the network device for each carrier may be sent to the terminal device.

The above scheme is that when the maximum transmitting power of the terminal device is greater than the first power and the uplink transmitting power of the auxiliary carrier is greater than the second power in the plurality of carriers, the network device downloads the description of the uplink transmitting power of the modulated carrier according to the sequence of the first auxiliary carrier and the main carrier. Optionally, as shown in fig. 3, the power control method provided in the embodiment of the present application further includes the following steps:

s303, when the maximum transmitting power of the terminal device is larger than the first power and the uplink transmitting power of the auxiliary carrier which does not exist in the plurality of carriers is larger than the second power, the network device adjusts the current uplink transmitting power of the main carrier.

The specific implementation of the network device to adjust the current uplink transmission power of the primary carrier will be described later, and will not be described herein.

Optionally, the power control method provided in the embodiment of the present application further includes: and under the condition that the maximum transmitting power of the terminal equipment is not greater than the first power, the terminal equipment transmits uplink information according to the current uplink transmitting power of each carrier.

The foregoing is a general description of the power control method provided by the present application, and the power control method provided by the present application will be described below with reference to fig. 4-6.

Referring to fig. 4, for the case that one secondary carrier is included in multiple carriers supported by a terminal device provided in the present application, the specific implementation of step S302 includes the following steps:

and S11, when the maximum transmission power of the terminal equipment is larger than the first power and the uplink transmission power of the auxiliary carrier exists in the plurality of carriers and is larger than the second power, the network equipment downwards adjusts the current uplink transmission power of the auxiliary carrier by a first set step length to obtain the first uplink transmission power.

As a possible implementation, the first setting step is a preset δdb, for example, δdb may be 3dB, or may be 4dB, which is not limited in this application.

And S12, if the first uplink transmission power is not smaller than the second power, the network equipment determines the current maximum transmission power of the terminal equipment according to the first uplink transmission power, the uplink transmission power supported by the main carrier and the duty ratio value allocated by the network equipment for each carrier.

As a possible implementation, referring to the above formula (1), the current maximum transmission power of the terminal device in step S12 is

Wherein, duty _i For the duty cycle value of a carrier, if the uplink transmit power of the carrier is adjusted, +.>

For the current uplink transmission power after the carrier is adjusted, for example, the first uplink transmission power, when the uplink transmission power of the carrier is not adjusted, +. >

A value of transmit power supported for the carrier.

And S13, if the first uplink transmission power is smaller than the second power, the network equipment up-regulates the current uplink transmission power of the auxiliary carrier to the second power, and determines the current maximum transmission power of the terminal equipment according to the second power, the uplink transmission power supported by the main carrier and the duty ratio value allocated by the network equipment for each carrier.

As a possible implementation, referring to the above formula (1), the current maximum transmission power of the terminal device in step S13 is

Wherein, duty _i For the occupation of a certain carrierThe space value is +_f when the uplink transmit power of the carrier is adjusted to the second power>

For the second power, when the uplink transmit power of the carrier is not adjusted,

a value of uplink transmit power supported for the carrier.

S14, if the current maximum transmitting power of the terminal equipment is larger than the first power, if the uplink transmitting power of the auxiliary carrier is larger than the second power, the network equipment repeatedly executes the steps S11-S13; if the uplink transmission power of the auxiliary carrier is not greater than the second power, the network device adjusts the current uplink transmission power of the main carrier until the maximum transmission power of the terminal device is not greater than the first power.

That is, after the uplink transmission power of the auxiliary carrier is adjusted, if the current maximum transmission power of the terminal device is still greater than the first power and the uplink transmission power of the auxiliary carrier after adjustment is still greater than the second power, the uplink transmission power of the auxiliary carrier is adjusted by a first set step again, and the network device repeatedly executes steps S11-S13 until the maximum transmission power of the terminal device is not greater than the first power. Or after the uplink transmission power of the auxiliary carrier is adjusted, if the current maximum transmission power of the terminal equipment is still greater than the first power and the uplink transmission power of the auxiliary carrier after the adjustment is not greater than the second power, the network equipment does not adjust the uplink transmission power of the auxiliary carrier any more, and adjusts the uplink transmission power of the main carrier instead until the maximum transmission power of the terminal equipment is not greater than the first power.

Based on the scheme, under the condition that the maximum transmission power of the terminal equipment is not larger than the first power, the network equipment adjusts the power by means of adjusting the uplink transmission power of the auxiliary carrier by a first set step length every time, so that the uplink transmission power of the auxiliary carrier is as large as possible, the coverage area of an uplink channel of the terminal equipment is ensured to be as large as possible, and the transmission performance is ensured to be as good as possible.

As a possible implementation, after step S14, the power control method provided in the embodiment of the present application may further include: and the network equipment sends the adjusted uplink transmission power of the carrier wave and the duty ratio value allocated by the network equipment for each carrier wave to the terminal equipment so that the terminal equipment carries out uplink information transmission according to the current uplink transmission power of the supported multiple carrier waves and the duty ratio value allocated by the network equipment for each carrier wave. Optionally, the network device may further send uplink transmit power supported by the unregulated carrier to the terminal device, which is not specifically limited in the embodiment of the present application.

Optionally, in the embodiment of the present application, after step S12 or step S13, the power control method provided in the embodiment of the present application may further include: if the current maximum transmitting power of the terminal equipment is not greater than the first power, the network equipment transmits the adjusted uplink transmitting power of the carrier wave and the duty ratio value allocated by the network equipment for each carrier wave to the terminal equipment, so that the terminal equipment performs uplink information transmission according to the current uplink transmitting power of the supported multiple carrier waves and the duty ratio value allocated by the network equipment for each carrier wave. Optionally, the network device may further send uplink transmit power supported by the unregulated carrier to the terminal device, which is not specifically limited in the embodiment of the present application.

The above solution is a description of a specific implementation of step S302 in the case that one secondary carrier is included in the multiple carriers supported by the terminal device provided in the present application, and in the following, with reference to fig. 5, a description will be given of a specific implementation of step S302 in the case that multiple secondary carriers are included in the multiple carriers supported by the terminal device provided in the present application.

Referring to fig. 5, for the case that the multiple secondary carriers are included in the multiple carriers supported by the terminal device provided in the present application, the specific implementation of step S302 includes the following steps:

and S21, when the maximum transmission power of the terminal equipment is larger than the first power and the uplink transmission power of the auxiliary carrier exists in the plurality of carriers and is larger than the second power, the network equipment downwards adjusts the current uplink transmission power of the first auxiliary carrier in the plurality of auxiliary carriers by a first set step length to obtain the second uplink transmission power.

The first auxiliary carrier is the auxiliary carrier with the highest carrier priority in the carriers with the current uplink transmitting power of the auxiliary carriers being larger than the second power.

As a possible implementation, in the embodiment of the present application, the highest priority refers to the worst uplink carrier channel quality, that is, the highest priority of the secondary carrier with the worst uplink carrier channel quality.

As a possible implementation, the uplink carrier channel quality may be determined by the network device based on the reference signal received power (reference signal receiving power, RSRP), and/or by the network device based on the channel quality indication (channel quality indicator, CQI), or may be determined by the network device in other manners, which is not limited in this application.

For example, taking the example of the terminal device 1 in the step S301, when the maximum transmission power of the terminal device 1 is 23.5dBm greater than the first power of 23dBm, and the uplink transmission power of the sub-carrier n78 band carrier is 26dBm greater than the second power of 18.2dBm, and the uplink transmission power of the sub-carrier n1 band carrier is 23dBm greater than the second power of 18.2dBm, if the network device determines that the uplink carrier channel quality of the n78 band carrier supported by the terminal device is worst, the network device adjusts the current uplink transmission power of the n78 band carrier by a first set step size, for example, the network device adjusts the current uplink transmission power of the n78 band carrier by 3dBm, so as to obtain the second uplink transmission power=26 dBm-3 dbm=23 dBm.

It is to be understood that the second uplink transmission power may be the same as the first uplink transmission power in step S11, or may be different from the first uplink transmission power. For example, when the initial uplink transmission power of the first secondary carrier is the same as the initial uplink transmission power of the secondary carrier in the above step S11, the second uplink transmission power may be the same as the first uplink transmission power in the above step S11. When the initial uplink transmission power of the first secondary carrier is different from the initial uplink transmission power of the secondary carrier in the above step S11, the second uplink transmission power may be different from the first uplink transmission power in the above step S11.

And S22, if the second uplink transmission power is not smaller than the second power, the network equipment determines the current maximum transmission power of the terminal equipment according to the second uplink transmission power, uplink transmission power supported by carriers except the first auxiliary carrier in the plurality of auxiliary carriers and a duty ratio value allocated by the network equipment for each carrier.

As a possible implementation, referring to the above formula (1), the current maximum transmission power of the terminal device in step S22 is

For the current uplink transmit power after the carrier adjustment, when the carrier is the first secondary carrier,

and is the second uplink transmit power. When the uplink transmission power of the carrier is not adjusted, & lt, & gt>

A value of uplink transmit power supported for the carrier.

For example, taking the terminal device 1 in the above step S21 as an example, the current maximum transmission power of the terminal device=50% -23 dbm+20% -26 dbm+40% -23 dbm=24.1 dBm.

And S23, if the second uplink transmission power is smaller than the second power, the network equipment up-regulates the current uplink transmission power of the first auxiliary carrier to the second power, and determines the current maximum transmission power of the terminal equipment according to the second power, the uplink transmission power supported by the carriers except the first auxiliary carrier in the plurality of auxiliary carriers and the duty ratio value distributed by the network equipment for each carrier.

As a possible implementation, referring to the above formula (1), the current maximum transmission power of the terminal device in step S23 is

For the adjusted uplink transmission power of the carrier, when the carrier is the first auxiliary carrier,

is the second power. When the uplink transmission power of the carrier is not adjusted, & lt, & gt>

A value of transmit power supported for the carrier.

For example, taking the terminal device 1 in the above step S21 as an example, if the current uplink transmission power of the n78 band carrier supported by the terminal device 1 is subjected to three downregulation, the obtained second transmission power= =26 dBm-3 dbm=17 dBm < second power 18.2dBm, and the network device adjusts the current uplink transmission power 17dBm of the n78 band carrier by 18.2dBm. At this time, the current maximum transmission power of the terminal device=50% -23 dbm+20% -26 dbm+40% -18.2 dbm=23.1 dBm.

S24, if the current maximum transmitting power of the terminal equipment is larger than the first power, if the uplink transmitting power of the first auxiliary carrier is larger than the second power, the network equipment repeatedly executes the steps S21-S23; if the uplink transmission power of the first auxiliary carrier is not greater than the second power, and if the uplink transmission power of the auxiliary carrier exists in the plurality of carriers and is greater than the second power, the network device repeatedly executes the steps S21-S23 until the current uplink transmission power of the auxiliary carrier does not exist in the plurality of carriers and is greater than the second power, and then the network device adjusts the current uplink transmission power of the main carrier until the maximum transmission power of the terminal device is not greater than the first power.

That is, after the uplink transmission power of the first auxiliary carrier is adjusted, if the current maximum transmission power of the terminal device is still greater than the first power and the uplink transmission power of the first auxiliary carrier after adjustment is still greater than the second power, the network device adjusts the uplink transmission power of the first auxiliary carrier by the first set step again, and repeatedly executes S21-S23 until the maximum transmission power of the terminal device is not greater than the first power. Or after the uplink transmission power of the first auxiliary carrier is adjusted, if the current maximum transmission power of the terminal device is still greater than the first power and the uplink transmission power after the adjustment of the first auxiliary carrier is not greater than the second power, the network device continuously adjusts the uplink transmission power of the auxiliary carrier with the highest priority among the rest auxiliary carriers with the uplink transmission power greater than the second power in the plurality of carriers, and repeatedly executes S21-S23 until the maximum transmission power of the terminal device is not greater than the first power. If the uplink transmission power of all the auxiliary carriers in the plurality of carriers is not greater than the second power, the network device does not adjust the uplink transmission power of the auxiliary carriers, and adjusts the uplink transmission power of the main carrier until the maximum transmission power of the terminal device is not greater than the first power.

Taking the terminal device 1 in the above step S22 as an example, the current maximum transmission power of the terminal device is 24.1dBm greater than the first power 23dBm, and the current uplink transmission power of the n 78-band carrier is 23dBm greater than the second power 18.2dBm, the network device down-regulates the current uplink transmission power of the n 78-band carrier by a first set step, for example, the network device down-regulates the current uplink transmission power of the n 78-band carrier by 3dBm, to obtain the second uplink transmission power

S21-S23 are repeatedly performed until the maximum transmit power of the terminal device is not greater than the first power, =26 dBm-3 dbm=20 dBm. Or taking the terminal device 1 in the step S23 as an example, the current maximum transmission power of the terminal device is 23.1dBm still greater than the first power of 23dBm, the current uplink transmission power of the n78 band carrier is not greater than 18.2dBm of the second power, the network device continues to adjust the uplink transmission power of the n1 band carrier downwards, and repeatedly executing S21-S23 until the maximum transmission power of the terminal device is not greater than the first power. If the uplink transmission power of the n1 frequency band carrier and the uplink transmission power of the n78 frequency band carrier are not greater than the second power, the network device does not adjust the uplink transmission power of the auxiliary carrier, and adjusts the uplink transmission power of the n41 frequency band carrier of the main carrier until the maximum transmission power of the terminal device is not greater than the first power.

Based on the scheme, under the condition that the maximum transmitting power of the terminal equipment is not larger than the first power, the network equipment adjusts the transmitting power of the auxiliary carrier with high priority by a first set step length every time, so that the transmitting power of the auxiliary carrier with low priority is as large as possible, the coverage area of an uplink channel of the terminal equipment is ensured to be as large as possible and the transmission performance is ensured to be as good as possible, and meanwhile, when the uplink transmitting power of the auxiliary carrier is lower than the second power, the network equipment adjusts the uplink transmitting of the auxiliary carrier to the second power, the transmitting power of the auxiliary carrier is ensured not to be reduced to be lower than the required minimum transmitting power, and the problem that the coverage area and the transmission performance of the uplink channel of the terminal equipment are influenced due to the fact that the transmitting power of the auxiliary carrier is too low can be avoided, and user experience is further influenced.

As a possible implementation, after step S24, the power control method provided in the embodiment of the present application further includes: and the network equipment sends the adjusted uplink transmission power of the carrier wave and the duty ratio value allocated by the network equipment for each carrier wave to the terminal equipment so that the terminal equipment carries out uplink information transmission according to the current uplink transmission power of the supported multiple carrier waves and the duty ratio value allocated by the network equipment for each carrier wave. Optionally, the network device may further send uplink transmit power supported by the unregulated carrier to the terminal device, which is not specifically limited in the embodiment of the present application.

Optionally, in the embodiment of the present application, after step S22 or step S23, the power control method provided in the embodiment of the present application may further include: if the current maximum transmitting power of the terminal equipment is not greater than the first power, the network equipment transmits the adjusted uplink transmitting power of the carrier wave and the duty ratio value allocated by the network equipment for each carrier wave to the terminal equipment, so that the terminal equipment performs uplink information transmission according to the current uplink transmitting power of the supported multiple carrier waves and the duty ratio value allocated by the network equipment for each carrier wave. Optionally, the network device may further send uplink transmit power supported by the unregulated carrier to the terminal device, which is not specifically limited in the embodiment of the present application.

The above solution is described for the specific implementation of step S302 when the maximum transmission power of the terminal device is greater than the first power and the uplink transmission power of the secondary carrier existing in the multiple carriers is greater than the second power, and in the following description, with reference to fig. 6, a specific implementation of the network device to adjust the current uplink transmission power of the primary carrier will be given, where the implementation includes the following steps:

and S31, the network equipment downwards adjusts the current uplink transmission power of the main carrier by a second set step length to obtain third uplink transmission power.

As a possible implementation, the second setting step is a preset α dB, for example, α dB may be 3dB, or may be 4dB, which is not limited in the present application.

The first setting step in step S11 and step S21 and the second setting step in step S31 may be the same or different, and the present application is not limited thereto.

And S32, if the third uplink transmission power is not smaller than the second power, the network equipment determines the current maximum transmission power of the terminal equipment according to the third uplink transmission power, the uplink transmission power supported by the auxiliary carrier and the duty ratio value allocated by the network equipment for each carrier.

As a possible implementation, referring to the above formula (1), the current maximum transmission power of the terminal device in step S32 is

The current uplink transmit power, e.g., the third uplink transmit power, after adjustment for the carrier. When the uplink transmission power of the carrier is not adjusted, & lt, & gt>

A value of transmit power supported for the carrier.

And S33, if the third uplink transmission power is smaller than the second power, the network equipment up-regulates the current uplink transmission power of the main carrier to the second power, and determines the current maximum transmission power of the terminal equipment according to the second power, the uplink transmission power supported by the auxiliary carrier and the duty ratio value allocated by the network equipment for each carrier.

As a possible implementation, referring to the above formula (1), the current maximum transmission power of the terminal device in step S33 is

Wherein, duty _i For the duty ratio of a certain carrier, when the uplink transmission power of the carrier is adjusted to the second power,/or%>

A value of uplink transmit power supported for the carrier.

And S34, if the current maximum transmission power of the terminal equipment is larger than the first power, if the uplink transmission power of the main carrier is larger than the second power, the network equipment repeatedly executes the steps S31-S33 until the maximum transmission power of the terminal equipment is not larger than the first power.

That is, after the uplink transmission power of the primary carrier is adjusted, if the current maximum transmission power of the terminal device is still greater than the first power and the uplink transmission power of the primary carrier after adjustment is still greater than the second power, the network device adjusts the uplink transmission power of the primary carrier by the second set step again, and repeatedly executes steps S31-S33 until the maximum transmission power of the terminal device is not greater than the first power.

Based on the scheme, under the condition that the maximum transmitting power of the terminal equipment is not larger than the first power, and the uplink transmitting power of the auxiliary carrier is not larger than the second power in the plurality of carriers, the network equipment adjusts the power by means of adjusting the transmitting power of the main carrier by a second set step length every time, so that the transmitting power of the main carrier is as large as possible, and the coverage area of an uplink channel of the terminal equipment is as large as possible and the transmission performance is as good as possible. Meanwhile, when the transmission power of the main carrier is lower than the second power, the network device adjusts the transmission of the main carrier to the second power, so that the transmission power of the main carrier is ensured not to be reduced to be lower than the minimum required transmission power, and the problems that the coverage range and the transmission performance of an uplink channel of the terminal device are influenced due to the fact that the transmission power of the main carrier is too low, and further user experience is influenced can be avoided.

Optionally, as shown in fig. 6, the power control method provided in the present application may further include:

and S35, under the condition that the current maximum transmitting power of the terminal equipment is larger than the first power, if the uplink transmitting power of the main carrier is not larger than the second power, the network equipment instructs the terminal to transmit uplink information according to a preset 3GPP protocol.

For example, the network device instructs the terminal device to transmit uplink information according to the default maximum transmission power of 23 dBm.

As a possible implementation, after step S34, the power control method provided in the embodiment of the present application further includes: and the network equipment sends the adjusted uplink transmission power of the carrier wave and the duty ratio value allocated by the network equipment for each carrier wave to the terminal equipment so that the terminal equipment carries out uplink information transmission according to the current uplink transmission power of the supported multiple carrier waves and the duty ratio value allocated by the network equipment for each carrier wave. Optionally, the network device may further send uplink transmit power supported by the unregulated carrier to the terminal device, which is not specifically limited in the embodiment of the present application.

Optionally, in the embodiment of the present application, after step S32 or step S33, the power control method provided in the embodiment of the present application may further include: if the current maximum transmitting power of the terminal equipment is not greater than the first power, the network equipment transmits the adjusted uplink transmitting power of the carrier wave and the duty ratio value allocated by the network equipment for each carrier wave to the terminal equipment, so that the terminal equipment performs uplink information transmission according to the current uplink transmitting power of the supported multiple carrier waves and the duty ratio value allocated by the network equipment for each carrier wave. Optionally, the network device may further send uplink transmit power supported by the unregulated carrier to the terminal device, which is not specifically limited in the embodiment of the present application.

The power control method provided in the above embodiment uses the network device as an execution body, and as a possible implementation, the power control method provided in the embodiment of the present application may also use the terminal device as an execution body. The specific implementation of the power control method performed by the terminal device is similar to the specific implementation of the power control method performed by the network device, and the differences are as follows: first, when the power control method provided in the embodiment of the present application is executed by the terminal device, before step S301, the power control method provided in the present application may further include: the terminal device sends the maximum uplink transmission power supported by each carrier to the network device, and receives the duty cycle value allocated to each carrier by the network device from the network device. Secondly, when the power control method provided in the embodiment of the present application is executed by the terminal device, since the terminal device may acquire the uplink transmission power of the adjusted carrier, the network device is not required to send the uplink transmission power of the adjusted carrier to the terminal device, and the terminal device may directly perform uplink information transmission according to the current uplink transmission powers of the supported multiple carriers and the duty ratio value allocated by the network device for each carrier. Then, when the power control method provided in the embodiment of the present application is executed by the terminal device, if the current maximum transmission power of the terminal device is greater than the first power and the uplink transmission power of the primary carrier is not greater than the second power, the terminal device performs uplink information transmission according to the preset 3GPP protocol. The terminal device performs uplink information transmission according to the default maximum transmission power of 23dBm, for example. The rest of the related description will refer to the embodiments described in fig. 3 to 6, and will not be repeated here.

The actions implemented by the network device in the above embodiment may be called by the processor 201 in the network device 20 shown in fig. 2 to call the application code stored in the memory 202 to instruct the network device to perform, and the actions implemented by the terminal device in the above embodiment may be called by the processor 301 in the terminal device 30 shown in fig. 2 to call the application code stored in the memory 302 to instruct the terminal device to perform, which is not limited in this embodiment.

It will be appreciated that in the various embodiments above, the methods and/or steps implemented by a network device may also be implemented by a component (e.g., a chip or circuit) that may be used with the network device; the methods and/or steps implemented by the terminal device may also be implemented with components (e.g., chips or circuits) available for the terminal device.

The above description has been presented mainly in terms of a network device or a terminal device performing a power control method. Correspondingly, the application also provides a communication device which is used for realizing the various methods. The communication device may be a network device in the above method embodiment, or a device including the above network device, or a component that may be used in the network device; alternatively, the communication device may be the terminal device in the above embodiment of the method, or a device including the terminal device, or a component usable with the terminal device.

It will be appreciated that the communication device, in order to achieve the above-described functions, comprises corresponding hardware structures and/or software modules performing the respective functions. Those of skill in the art will readily appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven 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.

The embodiment of the application may divide the functional modules of the communication device according to the embodiment of the method, 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 modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.

Fig. 7 shows a schematic structural diagram of a communication device 70. The communication device 70 comprises a processing module 701 and a determining module 702.

As an example:

a determining module, configured to determine whether a maximum transmission power of the terminal device is greater than a first power, where the maximum transmission power of the terminal device is determined according to uplink transmission power supported by each carrier in multiple carriers supported by the terminal device and a duty cycle value allocated by the network device to each carrier, where the multiple carriers include a primary carrier and one or more secondary carriers; and the processing module is used for descending the uplink transmission power of the corresponding carrier wave according to the sequence of the primary carrier wave after the auxiliary carrier wave when the maximum transmission power of the terminal equipment is larger than the first power and the uplink transmission power of the auxiliary carrier wave is larger than the second power in the plurality of carrier waves until the maximum transmission power of the terminal equipment is not larger than the first power.

As one possible implementation, the plurality of carriers includes one secondary carrier; the processing module is specifically configured to execute the following steps: step S11: the current uplink transmitting power of the auxiliary carrier wave is adjusted downwards by a first set step length to obtain a first uplink transmitting power; step S12: if the first uplink transmission power is not less than the second power, determining the current maximum transmission power of the terminal equipment according to the first uplink transmission power, the uplink transmission power supported by the main carrier and the duty ratio value distributed by the network equipment for each carrier; step S13: if the first uplink transmission power is smaller than the second power, the current uplink transmission power of the auxiliary carrier is up-regulated to the second power, and the current maximum transmission power of the terminal equipment is determined according to the second power, the uplink transmission power supported by the main carrier and the duty ratio value distributed by the network equipment for each carrier; step S14: if the current maximum transmission power of the terminal device is greater than the first power, repeating steps S11-S13 if the uplink transmission power of the secondary carrier is greater than the second power; and if the uplink transmission power of the auxiliary carrier is not greater than the second power, adjusting the current uplink transmission power of the main carrier until the maximum transmission power of the terminal equipment is not greater than the first power.

As one possible implementation, the plurality of carriers includes a plurality of secondary carriers; the processing module is specifically configured to execute the following steps: step S21: the current uplink transmission power of a first auxiliary carrier in the plurality of auxiliary carriers is adjusted downwards by a first set step length to obtain second uplink transmission power, wherein the first auxiliary carrier is the auxiliary carrier with highest carrier priority in carriers with current uplink transmission power of the auxiliary carriers being larger than the second power; step S22: if the second uplink transmission power is not smaller than the second power, determining the current maximum transmission power of the terminal equipment according to the second uplink transmission power, uplink transmission power supported by carriers except the first auxiliary carrier in the plurality of auxiliary carriers and a duty ratio value distributed by the network equipment for each carrier; step S23: if the second uplink transmission power is smaller than the second power, the current uplink transmission power of the first auxiliary carrier is up-regulated to the second power, and the current maximum transmission power of the terminal equipment is determined according to the second power, the uplink transmission power supported by the carriers except the first auxiliary carrier in the plurality of auxiliary carriers and the duty ratio value distributed by the network equipment for each carrier; step S24: if the current maximum transmission power of the terminal device is greater than the first power, repeating steps S21-S23 if the uplink transmission power of the first auxiliary carrier is greater than the second power; and if the uplink transmission power of the first auxiliary carrier is not greater than the first power and the uplink transmission power of the auxiliary carrier is greater than the second power in the plurality of carriers, repeating the steps S21-S23 until the current uplink transmission power of the main carrier is adjusted after the current uplink transmission power of the auxiliary carrier is not greater than the second power in the plurality of carriers, until the maximum transmission power of the terminal equipment is not greater than the first power.

As a possible implementation, the processing module is further configured to adjust the current uplink transmission power of the primary carrier when the maximum transmission power of the terminal device is greater than the first power and the uplink transmission power of the secondary carrier that does not exist in the plurality of carriers is greater than the second power.

As one possible implementation, the processing module adjusts the current uplink transmission power of the primary carrier, including: step S31: the current uplink transmitting power of the main carrier wave is adjusted downwards by a second set step length to obtain a third uplink transmitting power; step S32: if the third uplink transmission power is not less than the second power, determining the current maximum transmission power of the terminal equipment according to the third uplink transmission power, the uplink transmission power supported by the auxiliary carrier and the duty ratio value distributed by the network equipment for each carrier; step S33: if the third uplink transmission power is smaller than the second power, the current uplink transmission power of the main carrier is up-regulated to the second power, and the current maximum transmission power of the terminal equipment is determined according to the second power, the uplink transmission power supported by the auxiliary carrier and the duty ratio value distributed by the network equipment for each carrier; step S34: and if the current maximum transmission power of the terminal equipment is larger than the first power, repeating the steps S31-S33 until the maximum transmission power of the terminal equipment is not larger than the first power if the uplink transmission power of the main carrier is larger than the second power.

All relevant contents of each step related to the above method embodiment may be cited to the functional description of the corresponding functional module, which is not described herein.

In the present application, the communication device 70 is presented in the form of dividing the individual functional modules in an integrated manner. "module" herein may refer to an application-specific integrated circuit (ASIC), a circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the described functionality.

In some embodiments, when the execution body is a network device, the communication apparatus 70 may take the form of the network device 20 shown in fig. 2, as will be appreciated by those skilled in the art in terms of hardware implementation.

As an example, the functions/implementation of the processing module 701 and the determining module 702 in fig. 7 may be implemented by the processor 201 in the network device 20 shown in fig. 2 invoking computer executable instructions stored in the memory 202.

In some embodiments, when the execution body is a terminal device, the communication means 70 may take the form of the terminal device 30 shown in fig. 2, as will be appreciated by those skilled in the art in terms of hardware implementation.

As an example, the functions/implementation procedure of the processing module 701 and the determining module 702 in fig. 7 may be implemented by the processor 301 in the terminal device 30 shown in fig. 2 invoking computer executable instructions stored in the memory 302.

In some embodiments, when the communication device 70 in fig. 7 is a chip or a chip system, the functions/implementation procedures of the processing module 701 and the determining module 702 may be implemented by a processor (or a processing circuit) of the chip or the chip system.

Since the communication device 70 provided in this embodiment can perform the above method, the technical effects obtained by the method can be referred to the above method embodiment, and will not be described herein.

As a possible product form, the terminal device and the network device according to the embodiments of the present application may be further implemented using the following: one or more field programmable gate arrays (field programmable gate array, FPGA), programmable logic devices (programmable logic device, PLD), controllers, state machines, gate logic, discrete hardware components, any other suitable circuit or combination of circuits capable of performing the various functions described throughout this application.

In some embodiments, the embodiments of the present application further provide a communication device, where the communication device includes a processor, for implementing the method in any of the method embodiments described above.

As a possible implementation, the communication device further comprises a memory. The memory for storing the necessary program instructions and data, and the processor may invoke the program code stored in the memory to instruct the communication device to perform the method of any of the method embodiments described above. Of course, the memory may not be in the communication device.

As another possible implementation, the communication apparatus further includes an interface circuit, which is a code/data read/write interface circuit, for receiving computer-executable instructions (the computer-executable instructions are stored in a memory, may be read directly from the memory, or may be transmitted to the processor via other devices).

As a further possible implementation, the communication device further comprises a communication interface for communicating with a module outside the communication device.

It will be appreciated that the communication device may be a chip or a chip system, and when the communication device is a chip system, the communication device may be formed by a chip, or may include a chip and other discrete devices, which are not specifically limited in this embodiment of the present application.

The present application also provides a computer readable storage medium having stored thereon a computer program or instructions which when executed by a computer, performs the functions of any of the method embodiments described above.

The present application also provides a computer program product which, when executed by a computer, implements the functions of any of the method embodiments described above.

Those skilled in the art will understand that, for convenience and brevity, the specific working process of the system, apparatus and unit described above may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.

It will be appreciated that the systems, apparatus, and methods described herein may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate components may or may not be physically separate, i.e. may be located in one place, or may be distributed over a plurality of network elements. The components shown as units may or may not be physical units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more servers, data centers, etc. that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like. In an embodiment of the present application, the computer may include the apparatus described above.

Although the present application has been described herein in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a review of the figures, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the present application has been described in connection with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, the specification and drawings are merely exemplary illustrations of the present application as defined in the appended claims and are considered to cover any and all modifications, variations, combinations, or equivalents that fall within the scope of the present application. It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A method of power control, the method comprising:

determining whether the maximum transmitting power of the terminal equipment is larger than the first power, wherein the maximum transmitting power of the terminal equipment is determined according to the maximum uplink transmitting power supported by each carrier in a plurality of carriers supported by the terminal equipment and a duty ratio value distributed by network equipment for each carrier, and the plurality of carriers comprise a main carrier and one or more auxiliary carriers;

when the maximum transmitting power of the terminal equipment is larger than the first power and the maximum uplink transmitting power of the auxiliary carrier exists in the plurality of carriers and is larger than the second power, the maximum uplink transmitting power of the carrier is downwards modulated according to the sequence of the main carrier after the auxiliary carrier is firstly carried until the maximum transmitting power of the terminal equipment is not larger than the first power; the second power is a ratio of the first power to the number of the plurality of carriers;

the plurality of carriers comprise a plurality of auxiliary carriers; the step of down-regulating the maximum uplink transmitting power of the carriers according to the sequence of the primary carrier after the secondary carrier, until the maximum transmitting power of the terminal equipment is not more than the first power, includes:

Step S21: the current maximum uplink transmission power of a first auxiliary carrier in the plurality of auxiliary carriers is adjusted downwards by a first set step length to obtain second maximum uplink transmission power, wherein the first auxiliary carrier is the auxiliary carrier with highest carrier priority in carriers with the current maximum uplink transmission power of the auxiliary carriers being larger than the second power;

step S22: if the second maximum uplink transmission power is not less than the second power, determining the current maximum transmission power of the terminal device according to the second maximum uplink transmission power, the maximum uplink transmission power supported by carriers except the first auxiliary carrier in the plurality of auxiliary carriers, and the duty ratio value allocated by the network device to each carrier;

step S23: if the second maximum uplink transmission power is smaller than the second power, the current maximum uplink transmission power of the first auxiliary carrier is up-regulated to the second power, and the current maximum transmission power of the terminal equipment is determined according to the second power, the maximum uplink transmission power supported by carriers except the first auxiliary carrier in the plurality of auxiliary carriers and the duty ratio value distributed by the network equipment for each carrier;

Step S24: if the current maximum transmission power of the terminal device is greater than the first power, repeating steps S21-S23 if the maximum uplink transmission power of the first auxiliary carrier is greater than the second power; and if the maximum uplink transmission power of the first auxiliary carrier is not greater than the first power and the maximum uplink transmission power of the auxiliary carrier in the plurality of carriers is greater than the second power, repeating the steps S21-S23 until the current maximum uplink transmission power of the auxiliary carrier in the plurality of carriers is not greater than the second power, and then adjusting the current maximum uplink transmission power of the main carrier until the maximum transmission power of the terminal equipment is not greater than the first power.

2. The method according to claim 1, wherein the method further comprises:

and when the maximum transmitting power of the terminal equipment is larger than the first power and the maximum uplink transmitting power of the auxiliary carrier which does not exist in the plurality of carriers is larger than the second power, the network equipment adjusts the current maximum uplink transmitting power of the main carrier.

3. The method of claim 1, wherein the network device adjusting the current maximum uplink transmit power of the primary carrier comprises:

Step S31: the current maximum uplink transmitting power of the main carrier is adjusted downwards by a second set step length to obtain a third maximum uplink transmitting power;

step S32: if the third maximum uplink transmission power is not less than the second power, determining the current maximum transmission power of the terminal equipment according to the third maximum uplink transmission power, the maximum uplink transmission power supported by the auxiliary carrier and the duty ratio value allocated by the network equipment to each carrier;

step S33: if the third maximum uplink transmission power is smaller than the second power, the current maximum uplink transmission power of the main carrier is up-regulated to the second power, and the current maximum transmission power of the terminal equipment is determined according to the second power, the maximum uplink transmission power supported by the auxiliary carrier and the duty ratio value distributed by the network equipment for each carrier;

step S34: and if the current maximum transmitting power of the terminal equipment is larger than the first power, repeating the steps S31-S33 until the maximum transmitting power of the terminal equipment is not larger than the first power if the maximum uplink transmitting power of the main carrier is larger than the second power.

4. A communication device, the communication device comprising: a determining module and a processing module;

the determining module is configured to determine whether a maximum transmission power of a terminal device is greater than a first power, where the maximum transmission power of the terminal device is determined according to a maximum uplink transmission power supported by each carrier in a plurality of carriers supported by the terminal device and a duty cycle value allocated by a network device to each carrier, where the plurality of carriers includes a primary carrier and one or more secondary carriers;

the processing module is configured to, when the maximum transmission power of the terminal device is greater than the first power and the maximum uplink transmission power of the secondary carrier is greater than the second power in the plurality of carriers, down-regulate the maximum uplink transmission power of the carrier according to the sequence of the primary carrier after the secondary carrier is first until the maximum transmission power of the terminal device is not greater than the first power; the second power is a ratio of the first power to the number of the plurality of carriers;

the plurality of carriers comprise a plurality of auxiliary carriers; the processing module is specifically configured to execute the following steps:

5. The communication apparatus of claim 4, wherein the processing module is further configured to adjust a current maximum uplink transmit power of the primary carrier if a maximum transmit power of the terminal device is greater than the first power and a maximum uplink transmit power of no secondary carriers in the plurality of carriers is greater than the second power.

6. The communication apparatus of claim 4, wherein the processing module adjusts a current maximum uplink transmit power of the primary carrier, comprising:

7. A communication device, the communication device comprising: at least one processor;

the processor for executing a computer program or instructions to cause the communication device to perform the method of any of claims 1-3.

8. A computer readable storage medium, characterized in that the storage medium has stored therein a computer program or instructions which, when executed by a communication device, implement the method of any of claims 1-3.