Control method, communication device and storage medium

Abstract

According to the technical scheme, the power control parameter of the uplink transmission channel is selected or determined based on the first indication domain and / or the second indication domain in the downlink control information, and the power control parameter is used for selecting or determining the sending power of the uplink transmission channel. The invention provides a novel control method, and on the basis of the method, the dynamic change of the power control parameter of the terminal equipment in a dynamic waveform switching scene can be realized, and / or the uplink performance in a waveform switching process can be improved.

Description

Control method, communication device and storage medium Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a control method, communication equipment, and storage medium. Background Art

[0002] In communications systems, both DFT-S-OFDM (Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing) and CP-OFDM (Cyclic Prefix Orthogonal Frequency Division Multiplexing) waveforms can be used in LTE / NR systems. Specifically, in NR systems, uplink transmission can use either DFT-S-OFDM or CP-OFDM waveforms. In comparison, the DFT-S-OFDM waveform offers a 2dB gain over the CP-OFDM waveform, allowing the base station to set different target transmit powers for different waveforms. Furthermore, different uplink transmission waveforms can use different ranks. Therefore, the base station receiver algorithm can differ for different waveforms, resulting in different required SINRs and, consequently, different target uplink transmit powers. Finally, the DFT-S-OFDM waveform only supports continuous frequency-domain resource allocation and, therefore, may suffer from frequency-domain selective fading. In contrast, the CP-OFDM waveform achieves frequency-domain selective gain. Therefore, the uplink transmission channels for two different waveforms are different. Even if the path loss compensation is the same, the final received power at the base station will still be different. However, the target uplink transmission power for different waveforms is different, and the interference situation to neighboring cells is also different. Therefore, the base station needs to perform different closed-loop power control for different waveforms. Therefore, the transmit power-related parameters of the uplink channel corresponding to different waveforms can be configured differently.

[0003] Currently, power-related parameters can be associated with beam-related information in the protocol, and this association is implemented through RRC (Radio Resource Control) configuration. However, beam information cannot represent waveform information, so existing beam information cannot be used to implement power parameter switching caused by waveform switching. This makes it difficult to dynamically change power-related parameters of terminal devices in dynamic waveform switching scenarios. For mobile users, the inability to adjust their waveforms in a timely manner can lead to degraded uplink performance.

[0004] Therefore, it is necessary to propose a solution to improve the uplink performance during waveform switching.

[0005] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Technical Solutions

[0006] The main purpose of this application is to provide a control method, communication equipment and storage medium, aiming to realize dynamic changes in the power control parameters of the terminal device in a dynamic waveform switching scenario, and / or to improve the uplink performance during the waveform switching process.

[0007] To achieve the above objectives, the present application provides a control method that can be applied to a terminal device (such as a mobile phone), comprising the following steps:

[0008] A power control parameter of an uplink transmission channel is selected or determined based on the first indication field and / or the second indication field in the downlink control information, where the power control parameter is used to select or determine the transmit power of the uplink transmission channel.

[0009] Optionally, the method further comprises at least one of the following:

[0010] The power control parameters include an open-loop receiving end power target value and / or a partial path loss compensation factor;

[0011] The power control parameters are configured by a radio resource control message;

[0012] The power control parameters also include closed-loop power control status;

[0013] The first indication field is used to indicate the waveform used by the uplink transmission channel;

[0014] The second indication field includes at least one of an SRS resource indication field, an open-loop power control parameter indication field, a TCIState field, and a UL-TCIstate field;

[0015] The first indication field and the second indication field are carried in different downlink control information;

[0016] The second indication field is carried in the downlink control information for scheduling the uplink transmission channel.

[0017] Optionally, the selecting or determining the power control parameter of the uplink transmission channel based on the first indication field and / or the second indication field in the downlink control information includes at least one of the following:

[0018] Selecting or determining an open-loop receiving end power target value group and / or a partial path loss compensation factor group according to the first indication field, selecting or determining an open-loop receiving end power target value from the open-loop receiving end power target value group, and selecting or determining a partial path loss compensation factor from the partial path loss compensation factor group;

[0019] Selecting or determining an open-loop receiving end power target value from the open-loop receiving end power target value group, selecting or determining a partial path loss compensation factor from the partial path loss compensation factor group, and indicating whether the open-loop receiving end power target value and / or the partial path loss compensation factor need to use a corresponding offset value according to the first indication field;

[0020] Selecting or determining an open-loop receiving end power target value subgroup from the open-loop receiving end power target value group, selecting or determining a partial path loss compensation factor subgroup from the partial path loss compensation factor group, selecting or determining an open-loop receiving end power target value from the open-loop receiving end power target value subgroup based on the first indication field, and selecting or determining a partial path loss compensation factor from the partial path loss compensation factor subgroup based on the first indication field;

[0021] At least one of an open-loop receiving end power target value, a partial path loss compensation factor, and a closed-loop power control state is determined jointly according to the first indication field and the second indication field.

[0022] Optionally, the method further comprises at least one of the following:

[0023] The selecting or determining the open-loop receiving end power target value from the open-loop receiving end power target value group includes: selecting or determining the open-loop receiving end power target value from the open-loop receiving end power target value group based on the second indication field, and / or selecting the first open-loop receiving end power target value from the open-loop receiving end power target value group;

[0024] The selecting or determining the partial path loss compensation factor in the partial path loss compensation factor group includes: selecting or determining the partial path loss compensation factor in the partial path loss compensation factor group based on the second indication field; and / or selecting the first partial path loss compensation factor in the partial path loss compensation factor group.

[0025] Optionally, the method further comprises at least one of the following:

[0026] The open-loop receiving end power target value includes a first group of open-loop receiving end power target values ​​and / or a second group of open-loop receiving end power target values;

[0027] The partial path loss compensation factors include a first group of partial path loss compensation factors and / or a second group of partial path loss compensation factors;

[0028] The deviation value includes a first deviation value and / or a second deviation value.

[0029] Optionally, after the step of indicating, according to the first indication field, whether the open-loop receiving end power target value and / or the partial path loss compensation factor need to use a corresponding deviation value, the method further includes at least one of the following:

[0030] Selecting or determining a second group of open-loop receiving end power target values ​​according to the first group of open-loop receiving end power target values ​​and / or the first deviation value;

[0031] A second group of partial path loss compensation factors is selected or determined based on the first group of partial path loss compensation factors and / or the second deviation value.

[0032] Optionally, the first set of open-loop receiving end power target values ​​and the second set of open-loop receiving end power target values ​​are used for the first waveform and the second waveform, respectively.

[0033] Optionally, the first set of partial path loss compensation factors and the second set of partial path loss compensation factors are used for the first waveform and the second waveform, respectively.

[0034] Optionally, the method further comprises at least one of the following:

[0035] The selecting or determining an open-loop receiving end power target value subgroup in the open-loop receiving end power target value group includes: selecting or determining an open-loop receiving end power target value subgroup in the open-loop receiving end power target value group according to the second indication field, and / or selecting a first open-loop receiving end power target value subgroup in the open-loop receiving end power target value group;

[0036] The selecting or determining a partial path loss compensation factor subgroup in the partial path loss compensation factor group includes: selecting or determining a partial path loss compensation factor subgroup in the partial path loss compensation factor group according to the second indication field, and / or selecting the first partial path loss compensation factor subgroup in the partial path loss compensation factor group.

[0037] The present application also provides a control method, which can be applied to a network device (such as a base station), comprising the following steps:

[0038] Send downlink control information, the first indication field and / or the second indication field in the downlink control information is used by the terminal device to select or determine the power control parameters of the uplink transmission channel, and the power control parameters are used to select or determine the transmission power of the uplink transmission channel.

[0039] Optionally, the method further comprises at least one of the following:

[0040] Sending a radio resource control message, where the radio resource control message is used to configure power control parameters;

[0041] The power control parameter includes at least one of an open-loop receiving end power target value, a partial path loss compensation factor, and a closed-loop power control state;

[0042] Sending downlink control information, where the first indication field and the second indication field are carried in different downlink control information;

[0043] The second indication field is carried in the downlink control information for scheduling the uplink transmission channel.

[0044] Optionally, the method further comprises at least one of the following:

[0045] The terminal device selects or determines an open-loop receiving end power target value group and / or a partial path loss compensation factor group according to the first indication field, selects or determines an open-loop receiving end power target value in the open-loop receiving end power target value group, and selects or determines a partial path loss compensation factor in the partial path loss compensation factor group;

[0046] The terminal device selects or determines an open-loop receiving end power target value from the open-loop receiving end power target value group, selects or determines a partial path loss compensation factor from the partial path loss compensation factor group, and indicates whether the open-loop receiving end power target value and / or the partial path loss compensation factor need to use a corresponding deviation value according to the first indication field;

[0047] The terminal device selects or determines an open-loop receiving end power target value subgroup from the open-loop receiving end power target value group, selects or determines a partial path loss compensation factor subgroup from the partial path loss compensation factor group, selects or determines an open-loop receiving end power target value from the open-loop receiving end power target value subgroup according to the first indication field, and selects or determines a partial path loss compensation factor from the partial path loss compensation factor subgroup according to the first indication field;

[0048] The terminal device jointly determines at least one of an open-loop receiving end power target value, a partial path loss compensation factor and a closed-loop power control state based on the first indication field and the second indication field.

[0049] The present application also provides a communication device, comprising: a memory, a processor, and a control program stored in the memory and executable on the processor, wherein the control program implements the steps of any of the control methods described above when executed by the processor.

[0050] The communication device in this application can be a terminal device (such as a mobile phone) or a network device (such as a base station). The specific reference needs to be clarified based on the context.

[0051] The present application also provides a storage medium, wherein a computer program is stored on the storage medium, and when the computer program is executed by a processor, the steps of any of the control methods described above are implemented.

[0052] The technical solution of the present application selects or determines the power control parameters of the uplink transmission channel based on the first indication field and / or the second indication field in the downlink control information. The power control parameters are used to select or determine the transmit power of the uplink transmission channel. The present application provides a new control method based on which the power control parameters of the terminal device can be dynamically changed in the dynamic waveform switching scenario and / or the uplink performance during the waveform switching process can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The accompanying drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without inventive work.

[0054] FIG1 is a schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application;

[0055] FIG2 is a diagram of a communication network system architecture provided by an embodiment of the present application;

[0056] FIG3 is a schematic diagram of the hardware structure of a controller 140 provided in this application;

[0057] FIG4 is a schematic diagram of the hardware structure of a network node 150 provided in this application;

[0058] FIG5 is a schematic flow chart of a control method according to the first embodiment;

[0059] FIG6 is a schematic flow chart of a control method according to a second embodiment;

[0060] FIG7 is a schematic flow chart of a control method according to a third embodiment;

[0061] FIG8 is a schematic flow chart of a control method according to a fourth embodiment;

[0062] FIG9 is a schematic flow chart of a control method according to a fifth embodiment;

[0063] FIG10 is a flow chart of a control method according to a seventh embodiment;

[0064] FIG11 is a schematic diagram of an interaction sequence according to an eighth embodiment;

[0065] FIG12 is a first structural diagram of a control device provided in an embodiment of the present application;

[0066] FIG13 is a second structural diagram of the control device provided in an embodiment of the present application;

[0067] FIG14 is a schematic diagram of the structure of the communication device provided in an embodiment of the present application.

[0068] The purpose of this application, its features, and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and the accompanying text are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of this application to those skilled in the art by reference to specific embodiments.

[0069] Implementation Methods of the Application

[0070] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0071] It should be noted that, in this document, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0072] It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the term "if," as used herein, may be interpreted as "upon," "when," or "in response to a determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms "comprising" and "including" indicate the presence of the recited features, steps, operations, elements, components, items, types, and / or groups, but do not preclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or," "and / or," "including at least one of the following," etc., as used herein, may be interpreted as inclusive, meaning any one or any combination. For example, “comprising at least one of the following: A, B, C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”; and for another example, “A, B or C” or “A, B and / or C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”. An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some manner.

[0073] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are shown in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence in the order indicated by the arrows. Unless clearly stated herein, the execution of these steps is not strictly limited in order, and they can be performed in other orders. Moreover, at least a portion of the steps in the figure may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0074] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0075] It should be noted that in this article, step codes such as S1 and S2 are used for the purpose of expressing the corresponding content more clearly and concisely, and do not constitute a substantial restriction on the order. When implementing the step, those skilled in the art may execute S2 first and then S1, etc., but these should all be within the scope of protection of this application.

[0076] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0077] In the subsequent description, the use of suffixes such as "module", "component" or "unit" to represent elements is only for the purpose of facilitating the description of the present application and has no specific meaning. Therefore, "module", "component" or "unit" can be used interchangeably.

[0078] The terminal device may be implemented in various forms. For example, the terminal device described in this application may include intelligent terminal devices such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, and other fixed terminal devices such as digital TVs and desktop computers.

[0079] The subsequent description will be made using a mobile terminal as an example. Those skilled in the art will understand that, in addition to components specifically used for mobile purposes, the configuration according to the embodiments of the present application can also be applied to fixed-type terminal devices.

[0080] Please refer to Figure 1, which is a schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application. The mobile terminal 100 may include components such as an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an A / V (Audio / Video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. Those skilled in the art will understand that the mobile terminal structure shown in Figure 1 does not limit the mobile terminal. The mobile terminal may include more or fewer components than shown, or may combine certain components, or arrange the components differently.

[0081] The following is a detailed introduction to the various components of the mobile terminal in conjunction with Figure 1:

[0082] The RF unit 101 can be used to send and receive information or receive signals during calls. Specifically, it receives downlink information from the base station and transmits it to the processor 110 for processing. It also transmits uplink data to the base station. Typically, the RF unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and more. Furthermore, the RF unit 101 can communicate with the network and other devices via wireless communication. The above-mentioned wireless communications can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), 5G and 6G, etc.

[0083] WiFi is a short-range wireless transmission technology. A mobile terminal, through WiFi module 102, enables users to send and receive emails, browse web pages, and access streaming media, providing wireless broadband Internet access. Although FIG1 illustrates WiFi module 102, it is understood that it is not a required component of the mobile terminal and can be omitted as needed without altering the essence of the invention.

[0084] The audio output unit 103 can convert audio data received by the RF unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output it as sound when the mobile terminal 100 is in a call signal reception mode, a talk mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Furthermore, the audio output unit 103 can also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, or the like.

[0085] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042. The GPU 1041 processes image data of still images or videos captured by an image capture device (e.g., a camera) in video capture mode or image capture mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the GPU 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the RF unit 101 or the WiFi module 102. The microphone 1042 may receive sound (audio data) in operating modes such as a phone call mode, a recording mode, and a voice recognition mode, and may process such sound into audio data. In the phone call mode, the processed audio (voice) data may be converted into a format that can be transmitted to a mobile communication base station via the RF unit 101. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to eliminate (or suppress) noise or interference generated during the reception and transmission of audio signals.

[0086] The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 1061 and / or the backlight when the mobile terminal 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that recognize the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors that can be configured in the mobile phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be described here.

[0087] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0088] The user input unit 107 can be used to receive input digital or character information, and to generate key signal input related to the user settings and function control of the mobile terminal. Optionally, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also known as a touch screen, can collect user touch operations on or near it (such as operations performed by the user using a finger, stylus, or any other suitable object or accessory on or near the touch panel 1071) and drive the corresponding connection device according to a pre-set program. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the user's touch direction and detects the signal generated by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device and converts it into touch point coordinates, which are then sent to the processor 110. It can also receive commands sent by the processor 110 and execute them. In addition, the touch panel 1071 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may further include other input devices 1072. Optionally, the other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, power keys, etc.), a trackball, a mouse, a joystick, etc., and the specifics are not limited here.

[0089] Optionally, the touch panel 1071 may overlay the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits the information to the processor 110 to determine the type of touch event. The processor 110 then provides a corresponding visual output on the display panel 1061 based on the type of touch event. Although in FIG1 , the touch panel 1071 and the display panel 1061 are shown as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, which is not limited to this specific embodiment.

[0090] The interface unit 108 serves as an interface through which at least one external device can be connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and an external device.

[0091] Memory 109 can be used to store software programs and various data. Memory 109 may primarily include a program storage area and a data storage area. Optionally, the program storage area may store an operating system and at least one application required for a function (such as a sound playback function or an image playback function); the data storage area may store data generated based on the use of the mobile phone (such as audio data, a phone book, etc.). Furthermore, memory 109 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0092] Processor 110 is the control center of the mobile terminal, connecting all components of the mobile terminal using various interfaces and circuits. By running or executing software programs and / or modules stored in memory 109 and accessing data stored in memory 109, it executes various functions of the mobile terminal and processes data, thereby providing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, processor 110 may integrate an application processor and a modem processor. Optionally, the application processor primarily handles the operating system, user interface, and application programs, while the modem processor primarily handles wireless communications. It is understood that the modem processor may not be integrated into processor 110.

[0093] The mobile terminal 100 may also include a power supply 111 (such as a battery) for supplying power to various components. Preferably, the power supply 111 may be logically connected to the processor 110 through a power management system, thereby managing functions such as charging, discharging, and power consumption through the power management system.

[0094] Although not shown in FIG. 1 , the mobile terminal 100 may further include a Bluetooth module, etc., which will not be described in detail here.

[0095] To facilitate understanding of the embodiments of the present application, the communication network system on which the mobile terminal of the present application is based is described below.

[0096] Please refer to Figure 2, which is a communication network system architecture diagram provided in an embodiment of the present application. The communication network system is an NR (New Radio) system of universal mobile communication technology. The NR system includes UE (User Equipment) 201, E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, EPC (Evolved Packet Core) 203 and the operator's IP service 204, which are connected in sequence.

[0097] Optionally, UE201 may be the above-mentioned terminal device 100, which will not be described in detail here.

[0098] E-UTRAN 202 includes eNodeB 2021 and other eNodeBs 2022 . Optionally, eNodeB 2021 may be connected to other eNodeBs 2022 via a backhaul (eg, an X2 interface). eNodeB 2021 is connected to EPC 203 , and eNodeB 2021 may provide access from UE 201 to EPC 203 .

[0099] EPC 203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving Gate Way) 2034, a PGW (PDN Gate Way) 2035, and a PCRF (Policy and Charging Rules Function) 2036. Optionally, MME 2031 is a control node that processes signaling between UE 201 and EPC 203, providing bearer and connection management. HSS 2032 provides registers for managing functions such as the Home Location Register (not shown) and stores user-specific information such as service features and data rates. All user data can be sent through SGW2034, PGW2035 can provide IP address allocation and other functions for UE 201, PCRF2036 is the policy and charging control policy decision point for service data flow and IP bearer resources, and it selects and provides available policy and charging control decisions for the policy and charging execution function unit (not shown in the figure).

[0100] The IP service 204 may include the Internet, an intranet, an IMS (IP Multimedia Subsystem), or other IP services.

[0101] Although the above introduction takes the LTE system as an example, those skilled in the art should know that this application is not only applicable to the LTE system, but can also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, 5G and future new network systems (such as 6G), etc., which are not limited here.

[0102] FIG3 is a schematic diagram of the hardware structure of a controller 140 provided in this application. The controller 140 includes a memory 1401 and a processor 1402. The memory 1401 is used to store program instructions, and the processor 1402 is used to call the program instructions in the memory 1401 to execute the steps performed by the controller in the first embodiment of the above method. The implementation principles and beneficial effects are similar and will not be repeated here.

[0103] Optionally, the controller further includes a communication interface 1403, which can be connected to the processor 1402 via a bus 1404. The processor 1402 can control the communication interface 1403 to implement the receiving and sending functions of the controller 140.

[0104] Figure 4 is a schematic diagram of the hardware structure of a network node 150 provided in this application. Network node 150 includes: a memory 1501 and a processor 1502. Memory 1501 is used to store program instructions, and processor 1502 is used to call the program instructions in memory 1501 to execute the steps performed by the first node in the first embodiment of the above method. The implementation principles and beneficial effects are similar and will not be repeated here.

[0105] Optionally, the controller further includes a communication interface 1503, which can be connected to the processor 1502 via a bus 1504. The processor 1502 can control the communication interface 1503 to implement the receiving and sending functions of the network node 150.

[0106] The integrated modules implemented in the form of software function modules can be stored in a computer-readable storage medium. The software function modules stored in a storage medium include a number of instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute some of the steps of the methods of various embodiments of the present application.

[0107] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can 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 process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a storage medium or transmitted from one storage medium to another storage medium. For example, the computer instructions can be transmitted from a website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive solid state disk, SSD), etc.

[0108] Based on the above-mentioned mobile terminal hardware structure and communication network system, various embodiments of the present application are proposed.

[0109] First embodiment

[0110] 5 , which is a flow chart of a control method according to a first embodiment, the method of the embodiment of the present application can be applied to a terminal device (such as a mobile phone), and includes the following steps:

[0111] S2: Select or determine a power control parameter of an uplink transmission channel based on the first indication field and / or the second indication field in the downlink control information, where the power control parameter is used to select or determine the transmit power of the uplink transmission channel.

[0112] In an embodiment of the present application, for the dynamic switching scenario of the uplink transmission waveform, the power control parameters are dynamically adjusted to adapt to different waveforms including DFT-S-OFDM (Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing) and CP-OFDM (Cyclic Prefix Orthogonal Frequency Division Multiplexing) to achieve improved uplink transmission performance.

[0113] Optionally, the power control parameters include an open-loop receiving end power target value P0 and / or a partial path loss compensation factor a;

[0114] Optionally, the open-loop receiving end power target value P0 is composed of component P 0_NOMINAL,PUSCH,f,c and component P 0_UE_PUSCH,b,f,c composition.

[0115] Optionally, P 0_NOMINAL,PUSCH,f,c and P 0_UE_PUSCH,b,f,c Configured by radio resource control message.

[0116] Optionally, the open-loop receiving end power target value P0 is P 0_NOMINAL,PUSCH,f,c .

[0117] Optionally, the open-loop receiving end power target value P0 is P 0_UE_PUSCH,b,f,c , the value of the terminal device on different BWPs can be different.

[0118] Optionally, the P 0_NOMINAL,PUSCH,f,c and P 0_UE_PUSCH,b,f,c As defined in Section 7 of Agreement 38.213.

[0119] Optionally, the partial path loss compensation factor alpha is used for partial path loss compensation, and its value range is between 0 and 1.

[0120] Optionally, the partial path loss compensation factor alpha is defined in Section 7 of Protocol 38.213.

[0121] Optionally, the power control parameter is configured by a radio resource control message.

[0122] Optionally, the power control parameter further includes a closed-loop power control state 1, and the closed-loop power control state 1 is defined in Section 7 of Protocol 38.213.

[0123] Optionally, the first indication field is used to indicate the waveform used by the uplink transmission channel.

[0124] Optionally, the first indication field indicates switching between waveforms used by the uplink transmission channel.

[0125] Optionally, the first indication field is carried in downlink control information.

[0126] Optionally, the first indication field is carried in the downlink control information for scheduling the uplink transmission channel.

[0127] Optionally, the second indication field includes at least one of an SRS resource indication field, an open-loop power control parameter indication field, a TCIState field, and a UL-TCIstate field.

[0128] Optionally, the SRS resource indication field may also be used to indicate SRS resources.

[0129] Optionally, the SRS resource indication field indicates an index of an SRS resource.

[0130] Optionally, the SRS resources can be used for beam management, antenna selection, codebook, non-codebook, etc. When a network device (such as a base station) configures a spatial relationship for the SRS resources, the terminal device transmits the SRS resources according to the spatial relationship of the SRS resources, i.e., determines the transmit filter parameters; when the SRS resources are not configured with a spatial relationship, the terminal device determines the transmit filter parameters itself. The transmit filter parameters can be understood as the transmit parameters required to form a specific beam direction.

[0131] Optionally, the spatial relationship of the SRS resources is expressed using an SRS resource indication field of the SRS resources that have been sent by the terminal device.

[0132] Optionally, for uplink transmission channel transmission, the network device indicates one or more SRS resources through the SRS resource indication field in the downlink control information (DCI), and the terminal device uses the same transmission filter parameters as the SRS resources corresponding to the SRS resource indication field to send the uplink transmission channel, which can also be understood as using the same beam.

[0133] Optionally, the definition of the SRS resource indication field is given in Section 38.212 7.3.1.

[0134] Optionally, the open-loop power control parameter indication field is used to indicate the open-loop power parameter, such as the open-loop receiving end power target value P0 or P 0_UE_PUSCH,b,f,c wait.

[0135] Optionally, the definition of the open-loop power control parameter indication field is as described in Section 38.212 7.3.1.

[0136] Optionally, the TCIState field and the UL-TCIstate field are used to indicate the transmission configuration parameters of the uplink transmission channel, which can also be understood as the spatial relationship of the uplink transmission channel, and can also be understood as the beam used by the uplink transmission channel.

[0137] Optionally, the definition of the TCIState field and the UL-TCIstate field is given in Section 38.212 7.3.1.

[0138] Optionally, the first indication field and the second indication field are carried in different downlink control information.

[0139] Optionally, the first indication field is carried in downlink control information for scheduling an uplink transmission channel.

[0140] Optionally, the second indication field is carried in downlink control information for scheduling the uplink transmission channel.

[0141] Optionally, the uplink transmission channel includes a physical uplink shared channel.

[0142] Optionally, the uplink transmission channel includes a physical uplink control channel.

[0143] Optionally, the uplink transmission channel includes a physical random access channel.

[0144] Optionally, the uplink transmission channel includes an SRS signal.

[0145] Optionally, the power control parameters adjusted in the embodiment of the present application include the open-loop receiving end power target value and / or the partial path loss compensation factor, and the power control parameters of the uplink transmission channel can be selected or determined based on the first indication field and / or the second indication field in the downlink control information.

[0146] Optionally, the selecting or determining the power control parameter of the uplink transmission channel based on the first indication field and / or the second indication field in the downlink control information mainly includes the following groups of solutions:

[0147] Option 1:

[0148] Selecting or determining an open-loop receiving end power target value group and / or a partial path loss compensation factor group according to the first indication field;

[0149] Selecting or determining an open-loop receiving end power target value from an open-loop receiving end power target value group;

[0150] A partial path loss compensation factor is selected or determined from the partial path loss compensation factor group.

[0151] Optionally, a group of open-loop receiving end power target values ​​are configured according to different waveforms, different groups are selected through the domain (i.e., the first indication domain) in the DCI (Downlink Control Information), and then a P0 value is selected from the selected group through the second indication domain (for example, the SRI (SRS Resource Indication) domain).

[0152] Optionally, a group of partial path loss compensation factors are configured according to different waveforms, different groups are selected through fields in the DCI, and then an alpha value is selected from the selected group through the second indicator field (such as the SRI field).

[0153] Optionally, a group of closed-loop power adjustment states l are configured according to different waveforms, different groups are selected through the first indication field in the DCI, and then a l value is selected from the selected group through the second indication field (SRI field).

[0154] Option 2:

[0155] Selecting or determining an open-loop receiving end power target value from an open-loop receiving end power target value group;

[0156] Selecting or determining a partial path loss compensation factor from a partial path loss compensation factor group;

[0157] Indicate, according to the first indication field, whether the open-loop receiving end power target value and / or the partial path loss compensation factor need to use the corresponding deviation value, wherein the deviation value includes the first deviation value and / or the second deviation value.

[0158] Optionally, a group of open-loop receiving end power target values ​​are configured for the terminal device, an open-loop receiving end power target value deviation value is configured according to different waveforms, the deviation value is selected through the first indication field in the DCI, and then a P0 value is selected from the selected group through the second indication field (SRI field), and another P0 value is finally determined based on the P0 value and the deviation value.

[0159] Optionally, a group of partial path loss compensation factors are configured for the terminal device, a partial path loss compensation factor deviation value is configured according to different waveforms, the deviation value is selected through the first indication field in the DCI, and then an alpha value is selected from the selected group through the second indication field (SRI field), and another alpha value is finally determined based on the alpha value and the deviation value.

[0160] Option 3:

[0161] Selecting or determining an open-loop receiving end power target value subgroup from the open-loop receiving end power target value group;

[0162] Selecting or determining a partial path loss compensation factor subgroup in the partial path loss compensation factor group;

[0163] Selecting or determining an open-loop receiving end power target value in the open-loop receiving end power target value subgroup according to the first indication field;

[0164] A partial path loss compensation factor in the partial path loss compensation factor subgroup is selected or determined according to the first indication field.

[0165] Optionally, a group of open-loop receiving end power target values ​​is configured for the terminal device, and an open-loop receiving end power target value subgroup is configured in the group of open-loop receiving end power target values ​​according to different waveforms. Different subgroups are selected through the first indication field in the DCI, and then a P0 value is selected from the selected subgroup through the second indication field (SRI field).

[0166] Optionally, a group of partial path loss compensation factors is configured for the terminal device, and a partial path loss compensation factor subgroup is configured in the group of partial path loss compensation factors according to different waveforms. Different subgroups are selected through the first indication field in the DCI, and then an alpha value is selected from the selected group through the second indication field (SRI field).

[0167] Optionally, a group of closed-loop power adjustment states is configured for the terminal device, and a group of closed-loop power adjustment state subgroups are configured in the group of closed-loop power adjustment states according to different waveforms. Different subgroups are selected through the first indication field in the DCI, and then an l value is selected from the selected group through the second indication field (SRI field).

[0168] Option 4:

[0169] At least one of an open-loop receiving end power target value, a partial path loss compensation factor, and a closed-loop power control state is determined jointly according to the first indication field and the second indication field.

[0170] Optionally, if the higher layer signaling provides p0AlphaSetforPUSCH, then P is provided according to the p0AlphaSetforPUSCH corresponding to the indicated TCIState or UL-TCIstate. 0UE PUSCH b.f.c (j),α b,f,c (j), and PUSCH power control adjustment state l.

[0171] The power parameter is used to select or determine the transmit power of the uplink transmission channel.

[0172] Optionally, the uplink transmission channel is a physical uplink shared channel.

[0173] Optionally, the transmit power of the uplink transmission channel is:

[0174]

[0175] Among them, P 0UE PUSCH b.f.c (j) is composed of component P 0_NOMINAL,PUSCH,f,c and component P 0_UE_PUSCH,b,f,c composition.

[0176] α b,f,c (j) is the partial path loss compensation factor.

[0177] It is the frequency domain bandwidth occupied by the scheduled PUSCH channel. When the subcarrier spacing is 15kHz, it means the number of resource blocks.

[0178] PL b,f,c (q d ) is the estimated downlink path loss in dB.

[0179] Δ TF,b,f,c (i) is the adjustment value related to the uplink transmission format, where TF refers to the transmission format, that is, MCS.

[0180] P CMAX It is the configured transmission power, which is the maximum allowed transmission power configured for the uplink carrier of the uplink serving cell and is applicable to all uplink BWPs in the uplink carrier.

[0181] Where c is the cell, f is the carrier, b is the BWP, i is the PUSCH transmission opportunity, j is the open-loop power control parameter index, q d is the reference signal index, and l is the power control adjustment state.

[0182] This embodiment, through the above-described solution, specifically selects or determines a power control parameter for an uplink transmission channel based on the first indicator field and / or the second indicator field in the downlink control information. The power control parameter is used to select or determine the transmit power of the uplink transmission channel. This embodiment method can dynamically change the power control parameter of a terminal device in a dynamic waveform switching scenario and / or improve uplink performance during waveform switching.

[0183] Second embodiment

[0184] 6 , which is a flow chart of a control method according to a second embodiment, shows that the steps of the scheme include:

[0185] S211: Select or determine an open-loop receiving end power target value group and / or a partial path loss compensation factor group according to the first indication field;

[0186] In the embodiment of the present application, the open-loop parameters P0(j) and alpha(k) of the PUSCH power control are configured in pairs, which can be configured in 32 pairs, called P0-PUSCH-AlphaSet, where the first pair is used for random access Message 3PUSCH, the second pair is used for PUSCH without scheduling grant, and the others are flexibly configured and used by the network side through indexes according to the implementation requirements. Each P0(j) contains the common carrier-level component (-202,...,24)dBm of the cell and the BWP-level component (-16,-15,...,14,15) independently configured for each terminal device. The open-loop receiving end power target value mentioned below is the BWP-level component independently configured for each terminal device.

[0187] Optionally, the first indication field in the DCI is used to indicate that a certain group (P0-AlphaSet) is selected from multiple groups of P0 values.

[0188] Optionally, the first indication field is also used to indicate waveform switching for uplink channel transmission.

[0189] Optionally, the first indication field is also used to indicate a waveform used for uplink channel transmission.

[0190] Optionally, a set of open-loop receiving end power target values ​​are configured in different P0-AlphaSets (e.g., P0-AlphaSet-1, P0-AlphaSet-2, etc.), j is the index, and a P0 value is selected from the configured multiple sets of P0 values.

[0191] Optionally, a set of open-loop receiving end power target values ​​is configured in different P0-AlphaSets for the CP-OFDM waveform and the DFT-S-OFDM waveform, j is an index, and a P0 value is selected from the configured multiple sets of P0 values.

[0192] Note: Group 1: CP-OFDM; Group 2: DFT-S-OFDM.

[0193] S212: Selecting or determining an open-loop receiving end power target value from the open-loop receiving end power target value group;

[0194] Optionally, selecting or determining the open-loop receiving end power target value in the open-loop receiving end power target value group includes: selecting or determining the open-loop receiving end power target value in the open-loop receiving end power target value group based on the second indication field, and / or selecting the first open-loop receiving end power target value in the open-loop receiving end power target value group.

[0195] The selection of a certain P0 value from a group of P0 values ​​is indicated by the second indication field in the DCI (eg, at least one of the SRI field, the open-loop power control parameter indication field, the TCIState field, and the UL-TCIstate field).

[0196] Optionally, if the DCI does not include the second indication field (eg, the SRI field), the first P0 value is selected from a group of P0 values.

[0197] Optionally, if the DCI does not include the second indication field (eg, the SRI field), a P0 value with the smallest index is selected from a group of P0 values.

[0198] Optionally, a group of partial path loss compensation factors are configured in different P0-AlphaSets (such as P0-AlphaSet-1, P0-AlphaSet-2, etc.), k is the index, and an alpha value is selected from the configured multiple groups of alpha values.

[0199] Optionally, a group of partial path loss compensation factors is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform respectively, k is an index, and an alpha value is selected from the configured multiple groups of alpha values.

[0200] Optionally, the selection of a certain group from multiple groups of alpha values ​​is indicated by a first indication field in the DCI, and the field is also used to indicate waveform switching for uplink channel transmission.

[0201] S213: Select or determine a partial path loss compensation factor from the partial path loss compensation factor group.

[0202] Optionally, selecting or determining the partial path loss compensation factor in the partial path loss compensation factor group includes: selecting or determining the partial path loss compensation factor in the partial path loss compensation factor group based on the second indication field; and / or, selecting the first partial path loss compensation factor in the partial path loss compensation factor group.

[0203] The selection of the first alpha value from a group of alpha values ​​is indicated by the second indication field in the DCI (eg, at least one of the SRI field, the open-loop power control parameter indication field, the TCIState field, and the UL-TCIstate field).

[0204] Optionally, if the DCI does not include the second indication field (eg, the SRI field), the first alpha value is selected from a group of alpha values.

[0205] Optionally, if the DCI does not include the second indication field (eg, the SRI field), an alpha value with the smallest index is selected from a group of alpha values.

[0206] Optionally, a set of closed-loop power adjustment states is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform respectively, l is an index, and an l value is selected from the two configured sets of l values.

[0207] Optionally, multiple groups of closed-loop power adjustment states are configured respectively, l is an index, and an l value is selected from the configured multiple groups of l values.

[0208] Optionally, the selection of one group from the two groups of l values ​​is indicated by a first indication field in the DCI, and the field is also used to indicate waveform switching for uplink channel transmission.

[0209] Optionally, the selection of a certain group from multiple groups of l values ​​is indicated by a first indication field in the DCI, and the field is also used to indicate a waveform for uplink channel transmission.

[0210] The selection of a certain l value from a group of l values ​​is indicated by the second indication field in the DCI (eg, at least one of the SRI field, the open-loop power control parameter indication field, the TCIState field, and the UL-TCIstate field).

[0211] If the DCI does not include the second indication field, l=0.

[0212] Optionally, the DCI carrying the second indication field and the DCI carrying the first indication field are not the same DCI. For example, the DCI carrying the first indication field is located before the scheduling DCI corresponding to the uplink channel where waveform switching occurs in the time domain. The DCI carrying the second indication field is the scheduling DCI corresponding to the uplink channel where waveform switching occurs.

[0213] Optionally, the terminal device determines the waveform of the subsequent uplink channel and / or uplink information through the waveform information of the MSG3 (Message 3) message. After receiving the DCI carrying the first indication field (for example, indicating waveform switching), the terminal device switches its waveform.

[0214] For example, the terminal device determines that the waveform of the subsequent uplink channel and / or uplink information is CP-OFDM through the waveform information of the MSG3 message, and the terminal device switches its waveform to DFT-S-OFDM after receiving the DCI carrying the first indication field (for example, indicating waveform switching). Alternatively, the terminal device determines that the waveform of the subsequent uplink channel and / or uplink information is DFT-S-OFDM through the waveform information of the MSG3 message, and the terminal device switches its waveform to CP-OFDM after receiving the DCI carrying the first indication field (for example, indicating waveform switching).

[0215] Optionally, the first indication field in the DCI has two meanings, one of which is to indicate that the waveform is CP-OFDM, and the other is to indicate that the waveform is DFT-S-OFDM.

[0216] Optionally, the two meanings of the first indication field include that all values ​​of the field include two values, one value refers to one meaning, that is, indicating the waveform as CP-OFDM, and the other value refers to another meaning, that is, indicating the waveform as DFT-S-OFDM.

[0217] Optionally, the two meanings of the domain include that all values ​​of the domain include two groups of values, one group of values ​​refers to one meaning, i.e. indicating the waveform as CP-OFDM, and the other group of values ​​refers to another meaning, i.e. indicating the waveform as DFT-S-OFDM.

[0218]

[0219] This embodiment, through the above solution, specifically selects or determines an open-loop receive power target value group and / or a partial path loss compensation factor group based on the first indication field; selects or determines an open-loop receive power target value from the open-loop receive power target value group; and selects or determines a partial path loss compensation factor from the partial path loss compensation factor group. In response to dynamic switching of uplink transmission waveforms, power control parameters are dynamically adjusted to adapt to different waveforms, thereby improving uplink transmission performance.

[0220] Third embodiment

[0221] 7 , which is a flow chart of a control method according to a third embodiment, shows that the steps of the scheme include:

[0222] S221: Selecting or determining an open-loop receiving end power target value from an open-loop receiving end power target value group;

[0223] Optionally, selecting or determining the open-loop receiving end power target value from the open-loop receiving end power target value group includes: selecting or determining the open-loop receiving end power target value from the open-loop receiving end power target value group based on the second indication field, and / or selecting the first open-loop receiving end power target value from the open-loop receiving end power target value group;

[0224] Optionally, a group of open-loop receiving end power target values ​​are configured for the terminal device, an open-loop receiving end power target value deviation value (delta-p0) is configured according to different waveforms, the deviation value is selected through the first indication field in the DCI, and then a P0 value is selected from the selected group through the second indication field, and another P0 value is finally determined based on the P0 value and the deviation value.

[0225] S222: Selecting or determining a partial path loss compensation factor from the partial path loss compensation factor group;

[0226] Optionally, selecting or determining the partial path loss compensation factor in the partial path loss compensation factor group includes: selecting or determining the partial path loss compensation factor in the partial path loss compensation factor group based on the second indication field; and / or, selecting the first partial path loss compensation factor in the partial path loss compensation factor group.

[0227] Optionally, a group of partial path loss compensation factors are configured for the terminal device, a partial path loss compensation factor deviation value (delta-alpha) is configured according to different waveforms, the deviation value is selected through the first indication field in the DCI, and then an alpha value is selected from the selected group through the second indication field, and another alpha value is finally determined based on the alpha value and the deviation value.

[0228] S223: Indicate, according to the first indication field, whether the open-loop receiving end power target value and / or the partial path loss compensation factor need to use a corresponding deviation value.

[0229] Optionally, the open-loop receiving end power target value includes a first group of open-loop receiving end power target values ​​and / or a second group of open-loop receiving end power target values.

[0230] Optionally, the partial path loss compensation factors include a first group of partial path loss compensation factors and / or a second group of partial path loss compensation factors.

[0231] Optionally, the deviation value includes a first deviation value and / or a second deviation value.

[0232] Optionally, the first deviation value includes an open-loop receiving end power target value deviation value.

[0233] Optionally, the second deviation value includes a partial path loss compensation factor deviation value.

[0234] Optionally, after the step of indicating, according to the first indication field, whether the open-loop receiving end power target value and / or the partial path loss compensation factor need to use a corresponding deviation value, the method further includes at least one of the following:

[0235] Optionally, a second group of open-loop receiving end power target values ​​is selected or determined according to the first group of open-loop receiving end power target values ​​and / or the first deviation value;

[0236] Optionally, a second group of partial path loss compensation factors is selected or determined based on the first group of partial path loss compensation factors and / or the second deviation value.

[0237] Optionally, a set of open-loop receiving end power target values ​​is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform, j is an index, and a P0 value is selected from a set of configured P0 values.

[0238] Optionally, an open-loop receiving end power target value deviation value is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform, and another set of P0 values ​​is determined based on the set of P0 values ​​and the deviation value. The above two sets of P0 values ​​are used for the CP-OFDM waveform and the DFT-S-OFDM waveform, respectively.

[0239] Optionally, the second indication field in the DCI is used to indicate that a certain P0 value is selected from a group of P0 values.

[0240] Optionally, if the DCI does not include the second indication field, the first P0 value is selected from a group of P0 values.

[0241] Optionally, whether the offset value needs to be used is indicated by a first indication field in the DCI, and the first indication field is also used to indicate waveform switching for uplink channel transmission.

[0242] Optionally, whether the offset value needs to be used is indicated by a first indication field in the DCI, and the first indication field is also used to indicate a waveform used for uplink channel transmission.

[0243] Optionally, a set of partial path loss compensation factors is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform, k is an index, and an alpha value is selected from a set of configured alpha values.

[0244] Optionally, a partial path loss compensation factor deviation value is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform, and another set of alpha values ​​is determined based on the set of alpha values ​​and the deviation value. The above two sets of alpha values ​​are used for the CP-OFDM waveform and the DFT-S-OFDM waveform, respectively.

[0245] Optionally, the second indication field in the DCI is used to indicate the selection of the first alpha value from a group of alpha values.

[0246] Optionally, whether the offset value needs to be used is indicated by a first indication field in the DCI, and the field is also used to indicate waveform switching for uplink channel transmission.

[0247] Optionally, whether the offset value needs to be used is indicated by a first indication field in the DCI, and the field is also used to indicate a waveform used for uplink channel transmission.

[0248] Optionally, the DCI carrying the second indication field and the DCI carrying the first indication field are not the same DCI. For example, the DCI carrying the first indication field is located before the scheduling DCI corresponding to the uplink channel where waveform switching occurs in the time domain. The DCI carrying the second indication field is the scheduling DCI corresponding to the uplink channel where waveform switching occurs.

[0249] Optionally, the second indication field includes at least one of an SRS resource indication field, an open-loop power control parameter indication field, a TCIState field, and a UL-TCIstate field.

[0250] Optionally, the terminal device determines the waveform of the subsequent uplink channel and / or uplink information through the waveform information of the MSG3 message. After receiving the DCI carrying the first indication field (for example, indicating waveform switching), the terminal device switches its waveform.

[0251] Optionally, the terminal device determines that the waveform of the subsequent uplink channel and / or uplink information is CP-OFDM through the waveform information of the MSG3 message. After receiving the DCI carrying the first indication field (for example, indicating waveform switching), the terminal device switches its waveform to DFT-S-OFDM.

[0252] Optionally, the terminal device determines that the waveform of the subsequent uplink channel and / or uplink information is DFT-S-OFDM through the waveform information of the MSG3 message. After receiving the DCI carrying the first indication field (for example, indicating waveform switching), the terminal device switches its waveform to CP-OFDM.

[0253] Optionally, the first indication field in the DCI has two meanings, one of which is to indicate that the waveform is CP-OFDM, and the other is to indicate that the waveform is DFT-S-OFDM.

[0254] Optionally, the two meanings of the first indication field include that all values ​​of the first indication field include two values, one value refers to one meaning, i.e., indicating the waveform as CP-OFDM, and the other value refers to another meaning, i.e., indicating the waveform as DFT-S-OFDM.

[0255] Optionally, the two meanings of the first indication field also include that all values ​​of the first indication field include two groups of values, one group of values ​​refers to one meaning, i.e., indicating the waveform as CP-OFDM, and the other group of values ​​refers to another meaning, i.e., indicating the waveform as DFT-S-OFDM.

[0256]

[0257] This embodiment uses the above-mentioned scheme, specifically by selecting or determining an open-loop receiving end power target value from an open-loop receiving end power target value group; selecting or determining a partial path loss compensation factor from a partial path loss compensation factor group; and indicating whether the open-loop receiving end power target value and / or the partial path loss compensation factor need to use a corresponding deviation value according to a first indication field. By configuring a group of open-loop receiving end power target values ​​and / or partial path loss compensation factors for a terminal device, configuring an open-loop receiving end power target value deviation value and / or partial path loss compensation factor deviation value according to different waveforms, selecting the deviation value through a field in the DCI, and then selecting a P0 value and / or alpha value from the selected group through a second indication field, determining another P0 value based on the P0 value and the open-loop receiving end power target value deviation value, and determining another alpha value based on the alpha value and the partial path loss compensation factor deviation value, dynamic changes in the power control parameters of the terminal device in a dynamic waveform switching scenario are achieved.

[0258] Fourth embodiment

[0259] 8 , which is a flow chart of a control method according to a fourth embodiment, shows that the steps of the scheme include:

[0260] S231: Selecting or determining an open-loop receiving end power target value subgroup in the open-loop receiving end power target value group;

[0261] Optionally, the selecting or determining an open-loop receiving end power target value subgroup in the open-loop receiving end power target value group includes: selecting or determining an open-loop receiving end power target value subgroup in the open-loop receiving end power target value group based on the second indication field, and / or selecting the first open-loop receiving end power target value subgroup in the open-loop receiving end power target value group.

[0262] Optionally, a set of open-loop receiving end power target values ​​is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform, j is an index, and a P0 value is selected from a set of configured P0 values.

[0263] Optionally, a set of open-loop receiving end power target values ​​is configured, j is an index, and a P0 value is selected from the configured set of P0 values.

[0264] Optionally, the group of P0 values ​​includes multiple P0 value subgroups, and each P0 value subgroup includes two P0 values ​​(P0-1 and / or P0-2) respectively used for CP-OFDM waveform and DFT-S-OFDM waveform.

[0265] Optionally, the second indication field in the DCI is used to indicate that a certain P0 value subgroup is selected from a group of P0 values.

[0266] Optionally, if the DCI does not include the second indication field, a first P0 value subgroup is selected from a group of P0 values.

[0267] S232: Selecting or determining a partial path loss compensation factor subgroup from the partial path loss compensation factor group;

[0268] Optionally, selecting or determining a partial path loss compensation factor subgroup in the partial path loss compensation factor group includes: selecting or determining a partial path loss compensation factor subgroup in the partial path loss compensation factor group based on the second indication field, and / or selecting the first partial path loss compensation factor subgroup in the partial path loss compensation factor group.

[0269] Optionally, a set of partial path loss compensation factors is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform, k is an index, and an alpha value is selected from a set of configured alpha values.

[0270] Optionally, a set of partial path loss compensation factors is configured, k is an index, and an alpha value is selected from a set of configured alpha values.

[0271] Optionally, the group of alpha values ​​includes multiple alpha value subgroups, and each alpha value subgroup includes two alpha values ​​(alpha-1 and / or alpha-2) respectively used for the CP-OFDM waveform and the DFT-S-OFDM waveform.

[0272] S233: Select or determine an open-loop receiving end power target value in the open-loop receiving end power target value subgroup according to the first indication field;

[0273] Optionally, the selection of a certain P0 value from a P0 value subgroup is indicated by a first indication field in the DCI, and the first indication field is also used to indicate waveform switching for uplink channel transmission.

[0274] Optionally, the selection of a certain P0 value from a P0 value subgroup is indicated by a first indication field in the DCI, and the first indication field is also used to indicate a waveform for uplink channel transmission.

[0275] S234: Select or determine a partial path loss compensation factor in the partial path loss compensation factor subgroup according to the first indication field.

[0276] Optionally, the second indication field in the DCI is used to indicate that a certain alpha value subgroup is selected from a group of alpha values.

[0277] If the DCI does not include the second indication field, the first alpha value subgroup is selected from a group of alpha value subgroups.

[0278] Optionally, the selection of an alpha value from an alpha value subgroup is indicated by a first indication field in the DCI, and the field is also used to indicate waveform switching for uplink channel transmission.

[0279] Optionally, the selection of an alpha value from an alpha value subgroup is indicated by a first indication field in the DCI, and the field is also used to indicate a waveform for uplink channel transmission.

[0280] Optionally, the DCI carrying the second indication field and the DCI carrying the first indication field (indication waveform switching field) are not the same DCI.

[0281] Optionally, the DCI carrying the second indication field and the DCI carrying the first indication field are not the same DCI. For example, the DCI carrying the first indication field is located before the scheduling DCI corresponding to the uplink channel where waveform switching occurs in the time domain. The DCI carrying the second indication field is the scheduling DCI corresponding to the uplink channel where waveform switching occurs.

[0282] Optionally, the terminal device determines the waveform of the subsequent uplink channel and / or uplink information through the waveform information of the MSG3 message, and the terminal device switches its waveform after receiving the DCI carrying the first indication field.

[0283] Optionally, the terminal device determines that the waveform of the subsequent uplink channel and / or uplink information is CP-OFDM through the waveform information of the MSG3 message. After receiving the DCI carrying the first indication field, the terminal device switches its waveform to DFT-S-OFDM.

[0284] Optionally, the terminal device determines that the waveform of the subsequent uplink channel and / or uplink information is DFT-S-OFDM through the waveform information of the MSG3 message. After receiving the DCI carrying the first indication field, the terminal device switches its waveform to CP-OFDM.

[0285] Optionally, the field in the DCI for indicating waveform switching has two meanings, one of which is indicating that the waveform is CP-OFDM, and the other is indicating that the waveform is DFT-S-OFDM.

[0286] Optionally, the two meanings of the first indication field include that all values ​​of the first indication field include two values, one value refers to one meaning, i.e., indicating the waveform as CP-OFDM, and the other value refers to another meaning, i.e., indicating the waveform as DFT-S-OFDM.

[0287] Optionally, the two meanings of the first indication field also include that all values ​​of the field include two groups of values, one group of values ​​refers to one meaning, i.e., indicating the waveform as CP-OFDM, and the other group of values ​​refers to another meaning, i.e., indicating the waveform as DFT-S-OFDM.

[0288]

[0289] This embodiment, through the above-mentioned scheme, specifically selects or determines an open-loop receiving end power target value subgroup from the open-loop receiving end power target value group; selects or determines a partial path loss compensation factor subgroup from the partial path loss compensation factor group; selects or determines an open-loop receiving end power target value from the open-loop receiving end power target value subgroup based on the first indication field; and selects or determines a partial path loss compensation factor from the partial path loss compensation factor subgroup based on the first indication field. By configuring a group of open-loop receiving end power target values ​​and / or partial path loss compensation factors for the terminal device, configuring an open-loop receiving end power target value subgroup and / or partial path loss compensation factor subgroup in the group of open-loop receiving end power target values ​​according to different waveforms, selecting different subgroups through fields in the DCI, and then selecting a P0 value and / or alpha value from the selected subgroup through the SRI field, dynamic changes in the power control parameters of the terminal device in a dynamic waveform switching scenario are achieved.

[0290] Fifth embodiment

[0291] 9 , which is a flow chart of a control method according to a fifth embodiment, shows that the steps of the scheme include:

[0292] S241: Determine at least one of an open-loop receiving end power target value, a partial path loss compensation factor, and a closed-loop power control state based on the first indication field and the second indication field.

[0293] Optionally, if the higher layer signaling provides p0AlphaSetforPUSCH, then the p0AlphaSetforPUSCH corresponding to the indicated TCIState and / or UL-TCIstate is provided. 0_UE_PUSCH,b,f,c (j),α b,f,c (j), and the PUSCH power control adjustment state l determines the power parameters corresponding to the PUSCH.

[0294] Optionally, a set of open-loop receiving end power target values ​​is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform, j is the index, and a P0 value is selected from a set of configured P0 values, that is, a set of P0 values ​​in p0AlphaSetforPUSCH.

[0295] Optionally, multiple groups of open-loop receiving end power target values ​​are configured respectively, j is an index, and a P0 value is selected from a group of configured P0 values, that is, a group of P0 values ​​in p0AlphaSetforPUSCH.

[0296] Optionally, the set of P0 values ​​includes two P0 values, one for a CP-OFDM waveform and the other for a DFT-S-OFDM waveform.

[0297] Optionally, an associated set of P0 values ​​is indicated by the TCIState or UL-TCIstate field in the DCI.

[0298] Optionally, the first indication field in the DCI is used to indicate the selection of a P0 value from a P0 value group, and the first indication field is also used to indicate the waveform switching for uplink channel transmission, or the first indication field can also be used to indicate the waveform for uplink channel transmission.

[0299] Optionally, a set of partial path loss compensation factors is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform, k is the index, and an alpha value is selected from a set of configured alpha values, that is, a set of alpha values ​​in p0AlphaSetforPUSCH.

[0300] Optionally, a set of partial path loss compensation factors are configured respectively, k is an index, and an alpha value is selected from a set of configured alpha values, that is, a set of alpha values ​​in p0AlphaSetforPUSCH.

[0301] The set of alpha values ​​includes two alpha values ​​used for CP-OFDM waveform and DFT-S-OFDM waveform respectively.

[0302] Optionally, an associated set of alpha values ​​is indicated by the TCIState or UL-TCIstate field in the DCI.

[0303] Optionally, the first indication field in the DCI is used to indicate the selection of an alpha value from an alpha value group, and the first indication field is also used to indicate the waveform switching for uplink channel transmission, or the first indication field can also be used to indicate the waveform for uplink channel transmission.

[0304] Optionally, a set of closed-loop power adjustment states is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform, where l is an index and an l value is selected from a set of configured l values, namely a set of closedloopIndex values ​​in p0AlphaSetforPUSCH.

[0305] Optionally, a set of closed-loop power adjustment states are configured respectively, l is an index, and an l value is selected from a set of configured l values, the set of l values ​​being a set of closedloopIndex values ​​in p0AlphaSetforPUSCH.

[0306] Optionally, the set of closedloopIndex values ​​includes two closedloopIndex values, one for a CP-OFDM waveform and the other for a DFT-S-OFDM waveform.

[0307] Optionally, an associated set of closedloopIndex values ​​is indicated by the TCIState or UL-TCIstate field in the DCI.

[0308] The first indication field in the DCI is used to indicate the selection of a closedloopIndex value from a closedloopIndex value group. The first indication field is also used to indicate the waveform switching for uplink channel transmission, or the first indication field can also be used to indicate the waveform for uplink channel transmission.

[0309] Optionally, the DCI carrying the TCIState or UL-TCIstate field and the DCI carrying the first indication field (indication waveform switching field) are the same DCI.

[0310] Optionally, the DCI carrying the TCIState or UL-TCIstate field and the DCI carrying the first indication field are not the same DCI. For example, the DCI carrying the first indication field is located before the scheduling DCI corresponding to the uplink channel where waveform switching occurs in the time domain. The DCI carrying the TCIState or UL-TCIstate field is the scheduling DCI corresponding to the uplink channel where waveform switching occurs.

[0311] The terminal device determines the waveform of the subsequent uplink channel and / or uplink information through the waveform information of the MSG3 message. After receiving the DCI of the first indication field, the terminal device switches its waveform.

[0312] Optionally, the terminal device determines that the waveform of the subsequent uplink channel and / or uplink information is CP-OFDM through the waveform information of the MSG3 message. After receiving the DCI indicating the waveform switching, the terminal device switches its waveform to DFT-S-OFDM.

[0313] Optionally, the terminal device determines that the waveform of the subsequent uplink channel and / or uplink information is DFT-S-OFDM through the waveform information of the MSG3 message. After receiving the DCI indicating the waveform switching, the terminal device switches its waveform to CP-OFDM.

[0314] Optionally, the first indication field in the DCI has two meanings, one of which is to indicate that the waveform is CP-OFDM, and the other is to indicate that the waveform is DFT-S-OFDM.

[0315] Optionally, the two meanings of the first indication field include that all values ​​of the field include two values, one value refers to one meaning, that is, indicating the waveform as CP-OFDM, and the other value refers to another meaning, that is, indicating the waveform as DFT-S-OFDM.

[0316] Optionally, the two meanings of the first indication field include that all values ​​of the field include two groups of values, one group of values ​​refers to one meaning, i.e., indicating the waveform as CP-OFDM, and the other group of values ​​refers to another meaning, i.e., indicating the waveform as DFT-S-OFDM.

[0317]

[0318]

[0319] This embodiment uses the above scheme to jointly determine at least one of the open-loop receiving end power target value, the partial path loss compensation factor and the closed-loop power control state based on the first indication field and the second indication field, and realizes switching between power parameters caused by waveform switching through the first indication field and the second indication field.

[0320] Sixth embodiment

[0321] Based on the above embodiments of the present application, this embodiment further discloses the control method in the above embodiments.

[0322] In the embodiment of the present application, the terminal device determines the waveform through MSG3 and then indicates the switching through the first indication field (waveform switching indication field). For example, P0-AlphaSet is increased to 64, and the second indication field (SRI field) and the first indication field (waveform switching indication field) are combined to indicate {first indication field, second indication field} or {waveform switching indication, SRI}.

[0323] Optionally, the open-loop parameters P0(j) and alpha(k) for PUSCH power control are configured in pairs, with 64 configurable pairs, called P0-PUSCH-AlphaSets. The first pair is used for random access Message 3 PUSCH, the second pair is used for PUSCHs without a scheduling grant, and the remaining pairs are flexibly configured and used by the network through indexes based on implementation requirements. Each P0(j) parameter contains a common carrier-level component (-202, ..., 24) dBm for the cell and a BWP-level component (-16, -15, ..., 14, 15) configured independently for each terminal device. The open-loop receive power target values ​​mentioned below are the BWP-level components configured independently for each terminal device.

[0324] Optionally, a set of open-loop receiving end power target values ​​are configured in different P0-AlphaSets (P0-AlphaSet-1 and / or P0-AlphaSet-2) for the CP-OFDM waveform and the DFT-S-OFDM waveform, j is the index, and a P0 value is selected from the configured multiple sets of P0 values.

[0325] Optionally, the {first indication field, second indication field} or {waveform switching indication, SRI} field in the DCI is used to jointly indicate the selection of a certain group (P0-AlphaSet-1 and / or P0-AlphaSet-2) from multiple groups of P0 values, and the high 1 bit of the field is also used to indicate the waveform switching for uplink channel transmission, or the first indication field can also be used to indicate the waveform used for uplink channel transmission.

[0326] Optionally, the selection of the first P0 value from a group of P0 values ​​is indicated by the {first indication field, second indication field} or {waveform switching indication, SRI} field in the DCI.

[0327] Optionally, if the DCI does not include the second indication field (SRI field), the first P0 value is selected from a group of P0 values.

[0328] Optionally, if the DCI does not include the second indication field (SRI field), a P0 value with the smallest index is selected from a group of P0 values.

[0329] Optionally, a set of partial path loss compensation factors (P0-AlphaSet-1 and / or P0-AlphaSet-2) are configured for the CP-OFDM waveform and the DFT-S-OFDM waveform respectively, k is the index, and an alpha value is selected from the configured multiple sets of alpha values.

[0330] Optionally, the {first indication field, second indication field} or {waveform switching indication, SRI} field in the DCI is used to jointly indicate the selection of a certain group from multiple groups of alpha values, and the upper 1 bit of the field is also used to indicate the waveform switching for uplink channel transmission, or the first indication field can also be used to indicate the waveform for uplink channel transmission.

[0331] Optionally, the selection of the first alpha value from a group of alpha values ​​is indicated through the {first indication field, second indication field} or {waveform switching indication, SRI} field in the DCI.

[0332] Optionally, if the DCI does not include the second indication field (SRI field), an alpha value with the smallest index is selected from a group of alpha values.

[0333] Optionally, if the DCI does not include the second indication field (SRI field), the first alpha value is selected from a group of alpha values.

[0334] Optionally, a set of closed-loop power adjustment states is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform respectively, l is an index, and an l value is selected from the configured multiple sets of l values.

[0335] Optionally, the {first indication field, second indication field} or {waveform switching indication, SRI} field in the DCI is used to jointly indicate the selection of one group from the two groups of l values, and the upper 1 bit of the field is also used to indicate the waveform switching for uplink channel transmission.

[0336] Optionally, the selection of a certain l value from a group of l values ​​is jointly indicated through the {first indication field, second indication field} or {waveform switching indication, SRI} field in the DCI.

[0337] Optionally, if the DCI does not include the second indication field (SRI field), l=0.

[0338]

[0339]

[0340] This embodiment uses the above solution to determine the waveform through MSG3, then indicates waveform switching through the first indication field (waveform switching indication), and then uses existing beam indication information to implement the switching between power parameters caused by waveform switching. This achieves dynamic adjustment of power control parameters to adapt to different waveforms, thereby improving uplink transmission performance.

[0341] Seventh embodiment

[0342] 10 is a flow chart of a control method according to a seventh embodiment. The method according to the embodiment of the present application can be applied to a network device (such as a base station) and includes the following steps:

[0343] S1: Send downlink control information, where the first indication field and / or the second indication field in the downlink control information is used by the terminal device to select or determine the power control parameters of the uplink transmission channel, and the power control parameters are used to select or determine the transmission power of the uplink transmission channel.

[0344] Optionally, the downlink control information sent by the network device carries the first indication field and / or the second indication field.

[0345] Optionally, the first indication field and the second indication field are carried in the same downlink control information.

[0346] Optionally, the first indication field is used to indicate the waveform used by the uplink transmission channel.

[0347] Optionally, the second indication field is carried in downlink control information for scheduling the uplink transmission channel.

[0348] Optionally, the second indication field includes at least one of an SRS resource indication field, an open-loop power control parameter indication field, a TCIState field, and a UL-TCIstate field.

[0349] Optionally, the first indication field and the second indication field are carried in different downlink control information; the first indication field is used to indicate the waveform switching used by the uplink transmission channel.

[0350] Optionally, the network device also sends a wireless resource control message, which is used to configure power control parameters. Optionally, the power control parameters include at least one of an open-loop receiving end power target value, a partial path loss compensation factor, and a closed-loop power control state.

[0351] Optionally, a group of open-loop receiving end power target values ​​are configured according to different waveforms, different groups are selected through the first indication field in the DCI, and then a P0 value is selected from the selected group through the second indication field (SRI field).

[0352] Optionally, a group of partial path loss compensation factors is configured according to different waveforms, different groups are selected through the first indicator field in the DCI, and then an alpha value is selected from the selected group through the second indicator field (SRI field).

[0353] Optionally, a group of closed-loop power adjustment states is configured according to different waveforms, different groups are selected through the first indication field in the DCI, and then a l value is selected from the selected group through the second indication field (SRI field).

[0354] Optionally, a group of open-loop receiving end power target values ​​is configured for the terminal device, and an open-loop receiving end power target value subgroup is configured in the group of open-loop receiving end power target values ​​according to different waveforms. Different subgroups are selected through the first indication field in the DCI, and then a P0 value is selected from the selected subgroup through the second indication field (SRI field).

[0355] Optionally, a group of partial path loss compensation factors is configured for the terminal device, and a partial path loss compensation factor subgroup is configured in the group of partial path loss compensation factors according to different waveforms. Different subgroups are selected through the first indication field in the DCI, and then an alpha value is selected from the selected group through the second indication field (SRI field).

[0356] Optionally, a group of closed-loop power adjustment states is configured for the terminal device, and a group of closed-loop power adjustment state subgroups are configured in the group of closed-loop power adjustment states according to different waveforms. Different subgroups are selected through the first indication field in the DCI, and then an l value is selected from the selected group through the second indication field (SRI field).

[0357] Optionally, a group of open-loop receiving end power target values ​​are configured for the terminal device, an open-loop receiving end power target value deviation value is configured according to different waveforms, the deviation value is selected through the first indication field in the DCI, and then a P0 value is selected from the selected group through the second indication field (SRI field), and another P0 value is finally determined based on the P0 value and the deviation value.

[0358] Optionally, a group of partial path loss compensation factors are configured for the terminal device, a partial path loss compensation factor deviation value is configured according to different waveforms, the deviation value is selected through the first indication field in the DCI, and then an alpha value is selected from the selected group through the second indication field (SRI field), and another alpha value is finally determined based on the alpha value and the deviation value.

[0359] This embodiment, through the above-described scheme, specifically transmits downlink control information, wherein the first indication field and / or the second indication field in the downlink control information is used by the terminal device to select or determine the power control parameters of the uplink transmission channel, and the power control parameters are used to select or determine the transmit power of the uplink transmission channel. This embodiment method can achieve dynamic changes in the power control parameters of the terminal device in a dynamic waveform switching scenario and / or improve uplink performance during waveform switching.

[0360] Eighth embodiment

[0361] 11 , which is a schematic diagram of an interaction sequence according to an eighth embodiment. Based on the above embodiments of the present application, this embodiment further discloses the control method in the above embodiments.

[0362] In an embodiment of the present application, a network device (eg, a base station) sends downlink control information to a terminal device (eg, a mobile phone).

[0363] Optionally, the downlink control information sent by the network device carries the first indication field and / or the second indication field.

[0364] Optionally, the first indication field and the second indication field are carried in the same downlink control information.

[0365] Optionally, the first indication field is used to indicate the waveform used by the uplink transmission channel.

[0366] Optionally, the second indication field is carried in downlink control information for scheduling the uplink transmission channel.

[0367] Optionally, the second indication field includes at least one of an SRS resource indication field, an open-loop power control parameter indication field, a TCIState field, and a UL-TCIstate field.

[0368] Optionally, the first indication field and the second indication field are carried in different downlink control information; the first indication field is used to indicate the waveform switching used by the uplink transmission channel.

[0369] Optionally, after the terminal device receives the downlink control information sent by the network device, it selects or determines the power control parameters of the uplink transmission channel based on the first indication field and / or the second indication field carried therein, and then selects or determines the transmission power of the uplink transmission channel based on the power control parameters.

[0370] Optionally, the network device also sends a wireless resource control message, which is used to configure power control parameters. Optionally, the power control parameters include at least one of an open-loop receiving end power target value, a partial path loss compensation factor, and a closed-loop power control state.

[0371] Optionally, if the DCI for scheduling PUSCH carries an open-loop power control parameter set indication field, a group of open-loop receiving end power target values ​​are configured in different P0-PUSCH-SetLists, j is the index, and a P0 value is selected from the two configured groups of P0 values.

[0372] Optionally, the terminal device indicates the selection of one group from two groups of P0 values ​​through the first indication field in the DCI, and the field is also used to indicate the waveform switching for uplink channel transmission, or the first indication field can also be used to indicate the waveform for uplink channel transmission.

[0373] Optionally, if the open-loop power control parameter set indication field is 1, the SRI field in the DCI is used to indicate that a certain P0 value is selected from the P0 values ​​in the group indicated by P0-PUSCH-Set.

[0374] Optionally, if the DCI does not include the SRI field, if the open-loop power control parameter set indication field is 0 or 00, the P0 value in the first group P0-PUSCH-AlphaSet corresponding to P0-AlphaSet is selected.

[0375] Optionally, if the open-loop power control parameter set indication field is 1 or 01, the first P0 value in the P0-PUSCH-Set with the smallest index is selected.

[0376] Optionally, if the open-loop power control parameter set indication field is 10, the second P0 value in the P0-PUSCH-Set with the smallest index is selected.

[0377] Optionally, if there is neither an SRI field nor an open-loop power control parameter set indication field in the DCI, the P0 value in the first group P0-PUSCH-AlphaSet corresponding to P0-AlphaSet is selected.

[0378] Optionally, if the DCI for scheduling PUSCH carries an open-loop power control parameter set indication field, a set of open-loop receiving end power target values ​​is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform, j is the index, and a P0 value is selected from the configured set of P0 values.

[0379] Optionally, the group of P0 values ​​includes multiple P0 value subgroups, and each P0 value subgroup includes two P0 values, one for the CP-OFDM waveform and the other for the DFT-S-OFDM waveform.

[0380] Optionally, the terminal device indicates, through an SRI field in the DCI, that a certain P0 value subgroup is selected from a group of P0 values. The terminal device indicates, through a field in the DCI, that a certain P0 value is selected from a P0 value subgroup, and the field is further used to indicate waveform switching for uplink channel transmission, or the first indication field can also be used to indicate the waveform for uplink channel transmission.

[0381] Optionally, if the open-loop power control parameter set indication field is 1, the SRI field in the DCI is used to indicate that a certain P0 subgroup is selected from the P0 values ​​in the group indicated by P0-PUSCH-Set.

[0382] Optionally, if the DCI does not include the SRI field, if the open-loop power control parameter set indication field is 0 or 00, the P0 subgroup in the first group P0-PUSCH-AlphaSet corresponding to P0-AlphaSet is selected.

[0383] Optionally, if the open-loop power control parameter set indication field is 1 or 01, the first P0 subgroup in the P0-PUSCH-Set with the smallest index is selected.

[0384] Optionally, if the open-loop power control parameter set indication field is 10, the second P0 subgroup in the P0-PUSCH-Set with the smallest index is selected.

[0385] Optionally, if there is neither an SRI field nor an open-loop power control parameter set indication field in the DCI, the P0 subgroup in the first group P0-PUSCH-AlphaSet corresponding to the P0-AlphaSet is selected.

[0386] Optionally, if the DCI for scheduling PUSCH carries an open-loop power control parameter set indication field, a group of open-loop receiving end power target values ​​are configured in different P0-PUSCH-SetLists, j is the index, and a P0 value is selected from the two configured groups of P0 values.

[0387] Optionally, a set of open-loop receiving end power target values ​​is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform, j is an index, and a P0 value is selected from a set of configured P0 values.

[0388] Optionally, an open-loop receiving end power target value deviation value is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform, and another set of P0 values ​​is determined based on the set of P0 values ​​and the deviation value. The above two sets of P0 values ​​are used for the CP-OFDM waveform and the DFT-S-OFDM waveform, respectively.

[0389] Optionally, the terminal device indicates whether the deviation value needs to be used through a field in the DCI, and the field is also used to indicate the waveform switching for uplink channel transmission, or the first indication field can also be used to indicate the waveform for uplink channel transmission.

[0390] Optionally, if the open-loop power control parameter set indication field is 1, the SRI field in the DCI is used to indicate that a certain P0 value is selected from the P0 values ​​in the group indicated by P0-PUSCH-Set.

[0391] Optionally, an open-loop receiving end power target value deviation value is configured for the CP-OFDM waveform and the DFT-S-OFDM waveform, and another set of P0 values ​​is determined based on the set of P0 values ​​and the deviation value. The above two sets of P0 values ​​are used for the CP-OFDM waveform and the DFT-S-OFDM waveform, respectively.

[0392] Optionally, if the DCI does not include the SRI field, if the open-loop power control parameter set indication field is 0 or 00, the P0 value in the first group P0-PUSCH-AlphaSet corresponding to P0-AlphaSet is selected.

[0393] Optionally, if the open-loop power control parameter set indication field is 1 or 01, the first P0 value in the P0-PUSCH-Set with the smallest index is selected.

[0394] Optionally, if the open-loop power control parameter set indication field is 10, the second P0 value in the P0-PUSCH-Set with the smallest index is selected.

[0395] Optionally, if there is neither an SRI field nor an open-loop power control parameter set indication field in the DCI, the P0 value in the first group P0-PUSCH-AlphaSet corresponding to P0-AlphaSet is selected.

[0396] Optionally, if the higher layer signaling provides p0AlphaSetforPUSCH, then P is provided according to the p0AlphaSetforPUSCH corresponding to the indicated TCIState or UL-TCIstate. 0_UE_PUSCH,b,f,c (j),α b,f,c (j), and PUSCH power control adjustment state l.

[0397] This embodiment, through the above-described scheme, specifically transmits downlink control information to a terminal device via a network device, so that the terminal device selects or determines a power control parameter for an uplink transmission channel based on the first indicator field and / or the second indicator field in the downlink control information. The power control parameter is used to select or determine the transmit power of the uplink transmission channel. This embodiment method can achieve dynamic changes in the power control parameters of a terminal device in a dynamic waveform switching scenario and / or improve uplink performance during waveform switching.

[0398] Please refer to Figure 12, which is a schematic diagram of the structure of a control device provided in an embodiment of the present application. The device can be installed on the terminal device in the above method embodiment, and the device can specifically be a server. The control device shown in Figure 12 can be used to perform some or all of the functions of the method embodiment described in the above embodiment. As shown in Figure 12, the control device 110 includes:

[0399] The control module 111 is configured to select or determine a power control parameter of an uplink transmission channel based on the first indication field and / or the second indication field in the downlink control information, wherein the power control parameter is used to select or determine the transmission power of the uplink transmission channel.

[0400] Optionally, include at least one of the following:

[0401] The power control parameters include an open-loop receiving end power target value and / or a partial path loss compensation factor;

[0402] The power control parameters are configured by a radio resource control message;

[0403] The power control parameters also include closed-loop power control status;

[0404] The first indication field is used to indicate the waveform used by the uplink transmission channel, or the first indication field can also be used to indicate waveform switching for uplink channel transmission;

[0405] The second indication field includes at least one of an SRS resource indication field, an open-loop power control parameter indication field, a TCIState field, and a UL-TCIstate field;

[0406] The first indication field and the second indication field are carried in different downlink control information;

[0407] The second indication field is carried in the downlink control information for scheduling the uplink transmission channel.

[0408] The selecting or determining the power control parameter of the uplink transmission channel based on the first indication field and / or the second indication field in the downlink control information includes at least one of the following:

[0409] Selecting or determining an open-loop receiving end power target value group and / or a partial path loss compensation factor group according to the first indication field, selecting or determining an open-loop receiving end power target value from the open-loop receiving end power target value group, and selecting or determining a partial path loss compensation factor from the partial path loss compensation factor group;

[0410] Selecting or determining an open-loop receiving end power target value from the open-loop receiving end power target value group, selecting or determining a partial path loss compensation factor from the partial path loss compensation factor group, and indicating whether the open-loop receiving end power target value and / or the partial path loss compensation factor need to use a corresponding offset value according to the first indication field;

[0411] Selecting or determining an open-loop receiving end power target value subgroup from the open-loop receiving end power target value group, selecting or determining a partial path loss compensation factor subgroup from the partial path loss compensation factor group, selecting or determining an open-loop receiving end power target value from the open-loop receiving end power target value subgroup based on the first indication field, and selecting or determining a partial path loss compensation factor from the partial path loss compensation factor subgroup based on the first indication field;

[0412] At least one of an open-loop receiving end power target value, a partial path loss compensation factor, and a closed-loop power control state is determined jointly according to the first indication field and the second indication field.

[0413] Optionally, at least one of the following is also included:

[0414] The selecting or determining the open-loop receiving end power target value from the open-loop receiving end power target value group includes: selecting or determining the open-loop receiving end power target value from the open-loop receiving end power target value group based on the second indication field, and / or selecting the first open-loop receiving end power target value from the open-loop receiving end power target value group;

[0415] The selecting or determining the partial path loss compensation factor in the partial path loss compensation factor group includes: selecting or determining the partial path loss compensation factor in the partial path loss compensation factor group based on the second indication field; and / or selecting the first partial path loss compensation factor in the partial path loss compensation factor group.

[0416] Optionally, at least one of the following is also included:

[0417] The open-loop receiving end power target value includes a first group of open-loop receiving end power target values ​​and / or a second group of open-loop receiving end power target values;

[0418] The partial path loss compensation factors include a first group of partial path loss compensation factors and / or a second group of partial path loss compensation factors;

[0419] The deviation value includes a first deviation value and / or a second deviation value.

[0420] Optionally, after the step of indicating, according to the first indication field, whether the open-loop receiving end power target value and / or the partial path loss compensation factor need to use a corresponding deviation value, the method further includes at least one of the following:

[0421] Selecting or determining a second group of open-loop receiving end power target values ​​according to the first group of open-loop receiving end power target values ​​and / or the first deviation value;

[0422] A second group of partial path loss compensation factors is selected or determined based on the first group of partial path loss compensation factors and / or the second deviation value.

[0423] Optionally, the first set of open-loop receiving end power target values ​​and the second set of open-loop receiving end power target values ​​are used for the first waveform and the second waveform, respectively.

[0424] Optionally, the first set of partial path loss compensation factors and the second set of partial path loss compensation factors are used for the first waveform and the second waveform, respectively.

[0425] Optionally, at least one of the following is also included:

[0426] The selecting or determining an open-loop receiving end power target value subgroup in the open-loop receiving end power target value group includes: selecting or determining an open-loop receiving end power target value subgroup in the open-loop receiving end power target value group according to the second indication field, and / or selecting a first open-loop receiving end power target value subgroup in the open-loop receiving end power target value group;

[0427] The selecting or determining a partial path loss compensation factor subgroup in the partial path loss compensation factor group includes: selecting or determining a partial path loss compensation factor subgroup in the partial path loss compensation factor group according to the second indication field, and / or selecting the first partial path loss compensation factor subgroup in the partial path loss compensation factor group.

[0428] Please refer to FIG13, which is a second structural diagram of a control device provided in an embodiment of the present application. As shown in FIG13, the control device 120 includes:

[0429] The sending module 121 is used to send downlink control information, and the first indication field and / or the second indication field in the downlink control information are used by the terminal device to select or determine the power control parameters of the uplink transmission channel, and the power control parameters are used to select or determine the transmission power of the uplink transmission channel.

[0430] Optionally, at least one of the following is also included:

[0431] Sending a radio resource control message, where the radio resource control message is used to configure power control parameters;

[0432] The power control parameter includes at least one of an open-loop receiving end power target value, a partial path loss compensation factor, and a closed-loop power control state;

[0433] Downlink control information is sent, where the first indication field and the second indication field are carried in different downlink control information; and the second indication field is carried in the downlink control information for scheduling the uplink transmission channel.

[0434] Optionally, at least one of the following is also included:

[0435] The terminal device selects or determines an open-loop receiving end power target value group and / or a partial path loss compensation factor group according to the first indication field, selects or determines an open-loop receiving end power target value in the open-loop receiving end power target value group, and selects or determines a partial path loss compensation factor in the partial path loss compensation factor group;

[0436] The terminal device selects or determines an open-loop receiving end power target value from the open-loop receiving end power target value group, selects or determines a partial path loss compensation factor from the partial path loss compensation factor group, and indicates whether the open-loop receiving end power target value and / or the partial path loss compensation factor need to use a corresponding deviation value according to the first indication field;

[0437] The terminal device selects or determines an open-loop receiving end power target value subgroup from the open-loop receiving end power target value group, selects or determines a partial path loss compensation factor subgroup from the partial path loss compensation factor group, selects or determines an open-loop receiving end power target value from the open-loop receiving end power target value subgroup according to the first indication field, and selects or determines a partial path loss compensation factor from the partial path loss compensation factor subgroup according to the first indication field;

[0438] The terminal device jointly determines at least one of an open-loop receiving end power target value, a partial path loss compensation factor and a closed-loop power control state based on the first indication field and the second indication field.

[0439] The control device provided in the embodiment of the present application can execute the technical solution shown in the above method embodiment. Its implementation principle and beneficial effects are similar and will not be repeated here.

[0440] Refer to Figure 14, which is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. As shown in Figure 14, the communication device 140 described in this embodiment can be the terminal device (or component that can be used for a terminal device) or network device (or component that can be used for a network device) mentioned in the aforementioned method embodiment. Communication device 140 can be used to implement the methods corresponding to the terminal device or network device described in the aforementioned method embodiment. For details, please refer to the description of the aforementioned method embodiment.

[0441] The communication device 140 may include one or more processors 141, also referred to as processing units, which may perform certain control or processing functions. Processor 141 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, while the central processing unit may be used to control the communication device, execute software programs, and process software program data.

[0442] Optionally, the processor 141 may also store instructions 143 or data (eg, intermediate data). Optionally, the instructions 143 may be executed by the processor 141, so that the communication device 140 executes the method corresponding to the terminal device or network device described in the above method embodiment.

[0443] Optionally, the communication device 140 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned method embodiments.

[0444] Optionally, the communication device 140 may include one or more memories 142 , on which instructions 144 may be stored. The instructions may be executed on the processor 141 , so that the communication device 140 executes the method described in the above method embodiment.

[0445] Optionally, data may also be stored in the memory 142. The processor 141 and the memory 142 may be provided separately or integrated together.

[0446] Optionally, the communication device 140 may further include a transceiver 145 and / or an antenna 146. The processor 141 may be referred to as a processing unit, and controls the communication device 140 (terminal device, core network device, or wireless access network device). The transceiver 145 may be referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver, and is used to implement the transceiver functions of the communication device 140.

[0447] Optionally, if the communication device 140 is used to implement operations corresponding to the terminal device in the above-mentioned embodiments, for example, the transceiver 145 can receive downlink control information; and the processor 141 selects or determines the power control parameters of the uplink transmission channel based on the first indication field and / or the second indication field in the downlink control information, and the power control parameters are used to select or determine the transmission power of the uplink transmission channel.

[0448] Optionally, the specific implementation process of the processor 141 and the transceiver 145 can refer to the relevant description of the above embodiments, and will not be repeated here.

[0449] Optionally, if the communication device 140 is used to implement operations corresponding to the network devices in the above-mentioned embodiments, for example: the transceiver 145 can send downlink control information for the terminal device to select or determine the power control parameters of the uplink transmission channel based on the first indication field and / or the second indication field in the downlink control information, and the power control parameters are used to select or determine the transmission power of the uplink transmission channel.

[0450] Optionally, the specific implementation process of the processor 141 and the transceiver 145 can refer to the relevant description of the above embodiments, and will not be repeated here.

[0451] The processor 141 and transceiver 145 described in this application may be implemented on an IC (Integrated Circuit), an analog integrated circuit, an RFIC (Radio Frequency Integrated Circuit), a mixed-signal integrated circuit, an ASIC (Application Specific Integrated Circuit), a PCB (Printed Circuit Board), an electronic device, etc. The processor 141 and transceiver 145 may also be manufactured using various integrated circuit process technologies, such as CMOS (Complementary Metal Oxide Semiconductor), NMOS (N Metal-Oxide-Semiconductor), PMOS (Positive Channel Metal Oxide Semiconductor), BJT (Bipolar Junction Transistor), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0452] In this application, a communication device may be a terminal device (such as a mobile phone) or a network device (such as a base station), and the specific definition needs to be determined based on the context. In addition, the terminal device can be implemented in various forms. For example, the terminal devices described in this application may include mobile terminals such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminal devices such as digital TVs and desktop computers.

[0453] Although the communication device is described above by taking a terminal device or a network device as an example, the scope of the communication device described in this application is not limited to the above-mentioned terminal device or network device, and the structure of the communication device may not be limited to Figure 14. The communication device may be an independent device or may be part of a larger device.

[0454] An embodiment of the present application further provides a communication system, comprising: a terminal device as in any of the above method embodiments; and a network device as in any of the above method embodiments.

[0455] The present application also provides a communication device including a memory and a processor. The memory stores a control program, and when the control program is executed by the processor, the steps of the control method in any of the above embodiments are implemented. The communication device in this application can be a terminal device (such as a mobile phone) or a network device (such as a base station). The specific reference needs to be clarified based on the context.

[0456] An embodiment of the present application further provides a storage medium having a control program stored thereon. When the control program is executed by a processor, the steps of the control method in any of the above embodiments are implemented.

[0457] In the embodiments of the communication device and storage medium provided in the embodiments of the present application, all technical features of any of the above-mentioned control method embodiments may be included. The expanded and explained contents of the specification are basically the same as those of the embodiments of the above-mentioned methods and will not be repeated here.

[0458] An embodiment of the present application further provides a computer program product, which includes computer program code. When the computer program code runs on a computer, the computer executes the methods in the various possible implementation modes described above.

[0459] An embodiment of the present application also provides a chip, including a memory and a processor, wherein the memory is used to store computer programs, and the processor is used to call and run the computer programs from the memory, so that a device equipped with the chip executes the methods in the various possible implementation modes as described above.

[0460] It will be understood that the above scenarios are merely examples and do not constitute a limitation on the application scenarios of the technical solutions provided in the embodiments of the present application. The technical solutions of the present application may also be applied to other scenarios. For example, it will be appreciated by those skilled in the art that, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems. The serial numbers of the embodiments of the present application are for description only and do not represent the merits of the embodiments. The steps in the methods of the embodiments of the present application may be adjusted in order, merged, and deleted as needed. The units in the devices of the embodiments of the present application may be merged, divided, and deleted as needed. In this application, for the same or similar terminology, technical solutions, and / or application scenario descriptions, they are generally only described in detail the first time they appear. For the sake of brevity, they are generally not repeated when they appear again. When understanding the technical solutions and other contents of the present application, for the same or similar terminology, technical solutions, and / or application scenario descriptions that are not described in detail later, reference may be made to the relevant detailed descriptions before them.

[0461] In this application, the description of each embodiment has its own emphasis. For the part that is not described or recorded in detail in a certain embodiment, please refer to the relevant description of other embodiments. The various technical features of the technical solution of this application can be combined arbitrarily. In order to make the description concise, all possible combinations of the various technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application. Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment method can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such understanding, the technical solution of this application is essentially or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as above, including several instructions to enable a terminal device (which can be a mobile phone, computer, server, controlled terminal device, or network device, etc.) to execute the method of each embodiment of the present application.

[0462] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can 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 process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a storage medium or transmitted from one storage medium to another storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means. The storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium can be a magnetic medium (e.g., a floppy disk, a storage disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state storage disk Solid State Disk (SSD)).

[0463] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A control method, wherein: include: A power control parameter of an uplink transmission channel is selected or determined based on the first indication field and / or the second indication field in the downlink control information, and the power control parameter is used to select or determine the transmission power of the uplink transmission channel.

2. The method of claim 1, wherein: Include at least one of the following: The power control parameters include an open-loop receiving end power target value and / or a partial path loss compensation factor; The power control parameter is configured by a radio resource control message; The power control parameters also include a closed-loop power control state; The first indication field is used to indicate the waveform used by the uplink transmission channel; The second indication field includes at least one of an SRS resource indication field, an open-loop power control parameter indication field, a TCIState field, and a UL-TCIstate field; The first indication field and the second indication field are carried in different downlink control information; The second indication field is carried in the downlink control information for scheduling the uplink transmission channel.

3. The method of claim 2, wherein: The selecting or determining the power control parameter of the uplink transmission channel based on the first indication field and / or the second indication field in the downlink control information includes at least one of the following: Selecting or determining an open-loop receiving end power target value group and / or a partial path loss compensation factor group according to the first indication field, selecting or determining an open-loop receiving end power target value in the open-loop receiving end power target value group, and selecting or determining a partial path loss compensation factor in the partial path loss compensation factor group; Select or determine an open-loop receiving end power target value in the open-loop receiving end power target value group, select or determine a partial path loss compensation factor in the partial path loss compensation factor group, and indicate whether the open-loop receiving end power target value and / or the partial path loss compensation factor need to use a corresponding deviation value according to the first indication field; Select or determine an open-loop receiving end power target value subgroup in the open-loop receiving end power target value group, select or determine a partial path loss compensation factor subgroup in the partial path loss compensation factor group, select or determine an open-loop receiving end power target value in the open-loop receiving end power target value subgroup according to the first indication field, and select or determine a partial path loss compensation factor in the partial path loss compensation factor subgroup according to the first indication field; At least one of an open-loop receiving end power target value, a partial path loss compensation factor, and a closed-loop power control state is determined jointly according to the first indication field and the second indication field.

4. The method of claim 3, wherein: Also includes at least one of the following: The selecting or determining the open-loop receiving end power target value in the open-loop receiving end power target value group comprises: selecting or determining the open-loop receiving end power target value in the open-loop receiving end power target value group based on the second indication field, and / or selecting the first open-loop receiving end power target value in the open-loop receiving end power target value group; The selecting or determining the partial path loss compensation factor in the partial path loss compensation factor group includes: selecting or determining the partial path loss compensation factor in the partial path loss compensation factor group based on the second indication field; and / or selecting the first partial path loss compensation factor in the partial path loss compensation factor group.

5. The method of claim 3, wherein: Also includes at least one of the following: The open-loop receiving end power target value includes a first group of open-loop receiving end power target values ​​and / or a second group of open-loop receiving end power target values; The partial path loss compensation factors include a first group of partial path loss compensation factors and / or a second group of partial path loss compensation factors; The deviation value includes a first deviation value and / or a second deviation value.

6. The method of claim 3, wherein: After the step of indicating whether the open-loop receiving end power target value and / or the partial path loss compensation factor need to use the corresponding deviation value according to the first indication field, at least one of the following items is also included: Selecting or determining a second group of open-loop receiving end power target values ​​according to the first group of open-loop receiving end power target values ​​and / or the first deviation value; A second group of partial path loss compensation factors is selected or determined according to the first group of partial path loss compensation factors and / or the second deviation value.

7. The method of claim 3, wherein: Also includes at least one of the following: The selecting or determining an open-loop receiving end power target value subgroup in the open-loop receiving end power target value group comprises: selecting or determining an open-loop receiving end power target value subgroup in the open-loop receiving end power target value group according to the second indication field, and / or selecting the first open-loop receiving end power target value subgroup in the open-loop receiving end power target value group; The selecting or determining a partial path loss compensation factor subgroup in the partial path loss compensation factor group includes: selecting or determining a partial path loss compensation factor subgroup in the partial path loss compensation factor group according to the second indication field, and / or selecting the first partial path loss compensation factor subgroup in the partial path loss compensation factor group.

8. A control method, wherein: Includes steps: Send downlink control information, the first indication field and / or the second indication field in the downlink control information is used by the terminal device to select or determine the power control parameter of the uplink transmission channel, and the power control parameter is used to select or determine the transmission power of the uplink transmission channel.

9. The method of claim 8, wherein: Also includes at least one of the following: Sending a radio resource control message, where the radio resource control message is used to configure a power control parameter; The power control parameter includes at least one of an open-loop receiving end power target value, a partial path loss compensation factor, and a closed-loop power control state; Sending downlink control information, where the first indication field and the second indication field are carried in different downlink control information; The second indication field is carried in the downlink control information for scheduling the uplink transmission channel.

10. The method of claim 8, wherein: Also includes at least one of the following: The terminal device selects or determines an open-loop receiving end power target value group and / or a partial path loss compensation factor group according to the first indication field, selects or determines an open-loop receiving end power target value in the open-loop receiving end power target value group, and selects or determines a partial path loss compensation factor in the partial path loss compensation factor group; The terminal device selects or determines an open-loop receiving end power target value in the open-loop receiving end power target value group, selects or determines a partial path loss compensation factor in the partial path loss compensation factor group, and indicates whether the open-loop receiving end power target value and / or the partial path loss compensation factor need to use a corresponding deviation value according to the first indication field; The terminal device selects or determines an open-loop receiving end power target value subgroup in the open-loop receiving end power target value group, selects or determines a partial path loss compensation factor subgroup in the partial path loss compensation factor group, selects or determines an open-loop receiving end power target value in the open-loop receiving end power target value subgroup according to the first indication domain, and selects or determines a partial path loss compensation factor in the partial path loss compensation factor subgroup according to the first indication domain; The terminal device jointly determines at least one of an open-loop receiving end power target value, a partial path loss compensation factor and a closed-loop power control state based on the first indication field and the second indication field.

11. A communication device, wherein: include: A memory, a processor, and a control program stored in the memory and executable on the processor, wherein the control program implements the steps of the control method according to claim 1 or 8 when executed by the processor.

12. A storage medium, wherein: The storage medium stores a computer program, and when the computer program is executed by the processor, the steps of the control method according to claim 1 or 8 are implemented.

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