CN115884342A - Power control method, device, terminal and network node - Google Patents

Abstract

The application discloses a power control method, a device, a terminal and a network node, belonging to the technical field of communication, wherein the power control method of the embodiment of the application comprises the following steps: the terminal adjusts the uplink power control parameter according to the state of the service cell group; wherein the serving cell group comprises: a master cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameter is used for controlling the uplink transmission power of the terminal in a dual-connection DC mode and/or a multi-connection MC mode.

Description

Power control method, device, terminal and network node

Technical Field

The present application relates to the field of communications, and in particular to a power control method, device, terminal and network node.

Background Art

In 3GPP Rel-18, a terminal may be pre-configured with multiple secondary cell groups (SCGs) and control the user equipment (UE, also known as the terminal) to switch between multiple SCGs. The switching of multiple SCGs may be transparent to the master node (MN): on the one hand, there will not be too much interface signaling interaction between network elements due to frequent SCG switching; on the other hand, the MN and the secondary node (SN) are independent network elements and may be upgraded independently, so that the SN may support the features of multiple SCGs, while the MN is a legacy MN that has not been upgraded and does not support the features or mechanisms of multiple SCGs.

When the UE switches from the first SCG to the second SCG, since the MN is unaware, problems may occur in the uplink power control of the terminal in certain uplink power control modes. For example, in dynamic mode, due to the different SCG configurations before and after the switch, the value of the time offset (i.e., T-offset) used by the UE in the uplink power control mechanism may change, thereby adversely affecting the communication performance of the UE. If the value becomes smaller, the UE will monitor the scheduling of the MN during the time period when the MN does not try to schedule itself, resulting in power consumption losses. If the value becomes larger, the UE will not monitor the scheduling of the MN during the time period when the MN tries to schedule itself, thereby losing the scheduling of the MN. For another example, semi-static mode 2 will also be affected because the time division duplex pattern (TDD pattern) of the SCG will change before and after the switch.

Summary of the invention

The embodiments of the present application provide a power control method, device, terminal and network node, which can solve the problem that when the terminal changes the access cell group, the existing implementation method will affect the UE uplink power performance and communication reliability.

In a first aspect, a power control method is provided, comprising:

The terminal adjusts the uplink power control parameters according to the status of the serving cell group;

Among them, the service cell group includes: the main cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameter is used to control the uplink transmission power of the terminal in dual connection DC mode and/or multi-connection MC mode.

In a second aspect, a power control device is provided, comprising:

An adjustment module, used to adjust uplink power control parameters according to the status of the serving cell group;

Among them, the service cell group includes: the main cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameter is used to control the uplink transmission power of the terminal in the dual connection DC mode and/or multi-connection MC mode.

In a third aspect, a power control method is provided, including:

The master node MN sends first information to the slave node SN;

The first information includes at least one of the following:

When the terminal is configured in multi-connection mode and the uplink power control mode is configured in dynamic mode, the maximum time domain offset that needs to be met when the SN configures or schedules SCG transmission;

The first request is used to indicate at least one of the following: the SN configures the same time division duplex TDD pattern common configuration for multiple SCGs, and the TDD pattern configurations configured by the SN for multiple SCGs have associated patterns.

In a fourth aspect, a power control device is provided, comprising:

A first sending module, configured to send first information to the secondary node SN;

The first information includes at least one of the following:

When the terminal is configured in multi-connection mode and the uplink power control mode is configured in dynamic mode, the maximum time domain offset that needs to be met when the SN configures or schedules SCG transmission;

The first request is used to indicate at least one of the following: the SN configures the same time division duplex TDD pattern common configuration for multiple SCGs, and the TDD pattern configurations configured by the SN for multiple SCGs have associated patterns.

In a fifth aspect, a power control method is provided, including:

When the terminal performs a secondary cell group SCG conversion and the uplink power control mode of the terminal is a dynamic mode, the secondary node SN sends the time offset used by the terminal on the current SCG to the primary node MN.

In a sixth aspect, a power control device is provided, comprising:

The second sending module is used to send the time offset used by the terminal on the current SCG to the master node MN when the terminal performs the secondary cell group SCG conversion and the uplink power control mode of the terminal is the dynamic mode.

In a seventh aspect, a terminal is provided, comprising a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

In an eighth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is configured to adjust an uplink power control parameter according to a state of a serving cell group;

Among them, the service cell group includes: the main cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameter is used to control the uplink transmission power of the terminal in dual connection DC mode and/or multi-connection MC mode.

In the ninth aspect, a network node is provided, which is a main node MN, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor, and the program or instruction, when executed by the processor, implements the steps of the method described in the third aspect.

In a tenth aspect, a network node is provided, the network node being a primary node MN, comprising a processor and a communication interface, wherein the communication interface is used to send first information to a secondary node SN;

The first information includes at least one of the following:

When the terminal is configured in multi-connection mode and the uplink power control mode is configured in dynamic mode, the maximum time domain offset that needs to be met when the SN configures or schedules SCG transmission;

The first request is used to indicate at least one of the following: the SN configures the same time division duplex TDD pattern common configuration for multiple SCGs, and the TDD pattern configurations configured by the SN for multiple SCGs have associated patterns.

In the eleventh aspect, a network node is provided, which is a secondary node SN, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the fifth aspect are implemented.

In the twelfth aspect, a network node is provided, which is a secondary node SN, including a processor and a communication interface, wherein the communication interface is used to send the time offset used by the terminal on the current SCG to the main node MN when the terminal performs a secondary cell group SCG conversion and the uplink power control mode of the terminal is a dynamic mode.

In the thirteenth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect, the third aspect or the fifth aspect are implemented.

In a fourteenth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect, the third aspect, or the fifth aspect.

In the fifteenth aspect, a computer program/program product is provided, wherein the computer program/program product is stored in a non-volatile storage medium, and the program/program product is executed by at least one processor to implement the steps of the method described in the first aspect, the third aspect or the fifth aspect.

In an embodiment of the present application, uplink power control parameters are adjusted according to the status of the service cell group, thereby ensuring the uplink power performance of the UE and ensuring communication reliability.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied;

FIG2 is a schematic diagram of a power control method according to an embodiment of the present application;

FIG3 is a schematic diagram of a module of a power control device according to an embodiment of the present application;

FIG4 is a block diagram of a terminal according to an embodiment of the present application;

FIG5 is a second flow chart of the power control method according to an embodiment of the present application;

FIG6 is a second schematic diagram of a module of a power control device according to an embodiment of the present application;

FIG7 is a structural block diagram of a network node according to an embodiment of the present application;

FIG8 is a third flow chart of the power control method according to an embodiment of the present application;

FIG9 is a third schematic diagram of a module of a power control device according to an embodiment of the present application;

FIG. 10 is a structural block diagram of a communication device according to an embodiment of the present application.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and/or" in the specification and claims represents at least one of the connected objects, and the character "/" generally represents that the objects associated with each other are in an "or" relationship.

It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE)/LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned systems and radio technologies as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terms are used in most of the following descriptions, but these technologies can also be applied to applications other than NR system applications, such as the 6th Generation (6G) communication system.

FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) device, a robot, a wearable device (WearableDevice), a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (a home appliance with a wireless communication function, such as a refrigerator, a television, a washing machine or furniture, etc.) and other terminal side devices, and the wearable device includes: a smart watch, a smart bracelet, a smart headset, a smart glasses, a smart jewelry (smart bracelet, a smart bracelet, a smart ring, a smart necklace, a smart anklet, a smart anklet, etc.), a smart wristband, a smart clothing, a game console, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or some other appropriate term in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, it should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

The prior art related to the present application is described below.

1. Basic Concepts of DC/CA

Dual Connectivity (DC) means providing the UE with the resources of two network nodes, one of which is called the master node (MN) and the other is called the secondary node (SN). At each network node, carrier aggregation technology (CA) can also be used, that is, configuring a series of service cells controlled by the node for the UE, and these service cells form a cell group (cell group). The cell group controlled by MN is the master cell group (MCG), and the cell group controlled by SN is the secondary cell group (SCG). Each cell group contains a special cell (SpCell) and a series of secondary cells (SCell). In MCG, the special cell is called the primary cell (PCell), and in SCG, the special cell is called the primary secondary cell (PSCell).

2. Rel-16 NR-DC uplink dynamic power sharing mechanism

The uplink power sharing of NR-DC can also be called uplink power control, that is, the service cells operating in the same frequency range (frequency range, FR) in MCG and SCG can share the total maximum transmit power of the UE and perform joint power allocation, where FR includes FR1 and FR2. Assuming that the maximum total transmission power (Ptotal) of the UE is constant, when the uplink transmission of MCG and the uplink transmission of SCG occur at the same time (specifically, the uplink transmission of any service cell in MCG and the uplink transmission of any service cell in SCG occur simultaneously), the UE needs to adjust the uplink transmission power of MCG or SCG to ensure that the sum of the two does not exceed the maximum total uplink transmission power of the UE.

NR-DC uplink power control/uplink power sharing includes three modes:

Semi-static power control mode 1 (also called semi-static mode 1): MCG and SCG perform power control based on the maximum transmit power of their respective cell groups;

Semi-static power control mode 2 (also called semi-static mode 2): When the MCG determines the uplink power, the uplink and downlink frame structure time division duplex pattern (TDD pattern) configuration information of the SCG is considered; the same applies to the SCG.

Dynamic power control mode: When the SCG determines the uplink power at time T0, if the UE receives the scheduling to the MCG before time T0-T_offset, the UE limits the SCG's transmission power according to the actual transmission power of the MCG, the UE's maximum total uplink transmission power, and the SCG's maximum transmission power. During [T0-Toffset～T0], the UE does not want to receive the MCG's scheduling. The specific solution is: Assume that the UE will start SCG uplink transmission at time T0, and its SCG uplink transmission power is represented by pwr_SCG. The UE calculates the SCG uplink transmission power pwr_SCG at time T0 according to the following method:

Before time T0-T_offset, the UE monitors the physical downlink control channel (PDCCH) of the MCG:

If the PDCCH triggers/indicates an MCG uplink transmission of the UE that overlaps with the SCG uplink transmission at time T0, the SCG uplink transmission power of the UE should satisfy pwr_SCG<=min{ _PSCG , _Ptotal -MCG tx power}, where _Ptotal is the maximum total uplink transmission power of the UE, _PSCG is the maximum uplink transmission power of the SCG, and MCG tx power is the uplink transmission power of the MCG;

Otherwise, pwr_SCG<=P _total .

After T0-T_offset, the UE does not want the PDCCH of the MCG to schedule the UE to perform MCG uplink transmission that overlaps with the SCG uplink transmission at time T0.

Among them, T_offset is the time offset used by the UE when the uplink power control mode is the dynamic mode. The following describes the value of T_offset:

其中

为UE在MCG中的最大准备时间，

为UE在SCG中的最大准备时间。在“向前看(Look-ahead)”时，

的取值为T_proc,2,T_proc,CSI,

和/或

中的最大值；在“不使用向前看(Without look-ahead)”时，

的取值为T_proc,2,T_proc,CSI,

和/或

中的最大值。The value of T_offset is

in

is the maximum preparation time of UE in MCG,

The maximum preparation time of the UE in the SCG.

The value of is T _proc,2 ,T _proc,CSI ,

and/or

The maximum value in; When "Without look-ahead",

The value of is T _proc,2 ,T _proc,CSI ,

and/or

The maximum value in .

Explanation of the above parameters:

T _proc,2 is the physical uplink shared channel (PUSCH) processing time of the terminal in MCG or SCG;

It should be noted that processing time can be understood as preparation time, processing time, preparation delay or processing delay, etc.

T _proc,CSI is the channel state information (CSI) preparation time of the terminal in MCG or SCG;

为终端在MCG或SCG上发送SPS PDSCH release的PUSCH或PUCCH与其他PUCCH和/或PUSCH复用时的SPS PDSCH release准备时间；

The SPS PDSCH release preparation time when the PUSCH or PUCCH of the SPS PDSCH release sent by the terminal on the MCG or SCG is multiplexed with other PUCCH and/or PUSCH;

为终端在MCG或SCG的PUSCH与PUCCH和/或其他PUSCH复用时的PUSCH准备时间；

It is the PUSCH preparation time of the terminal when the PUSCH of MCG or SCG is multiplexed with PUCCH and/or other PUSCH;

为终端在MCG或SCG上发送CSI的PUSCH或PUCCH与其他PUCCH或PUSCH复用时的CSI准备时间。

It is the CSI preparation time when the PUSCH or PUCCH for sending CSI by the terminal on the MCG or SCG is multiplexed with other PUCCH or PUSCH.

3. Rel-17 SCG activation/deactivation mechanism

Rel-17 introduced the SCG activation/deactivation mechanism. When there is no data to be transmitted on the SCG or the UE is currently overheated or for the purpose of power saving, the network side and the UE side can initiate the SCG deactivation process. When these conditions change, the network side and the UE side can initiate the SCG activation process again. Since the UE does not monitor the PDCCH on the SCG during SCG deactivation, and there is no physical uplink shared channel (PUSCH), SRS transmission and other behaviors, the terminal can operate in a more power-saving manner during this period. In addition, during this period, the UE may also perform radio resource management (RRM) measurements and radio link management (RLM) measurements of the SCG, so as to try to ensure that the SCG is of good quality when the SCG is activated.

4. Multi-connection MC

Multiple SCGs may be introduced in subsequent versions of 3GPP, that is, the network side configures MCG and more than one SCG for the terminal, and uses aggregation technology or SCG conversion technology to improve the UE's performance in terms of throughput, mobility, link stability, etc.

The power control method, device, terminal and network node provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through some embodiments and their application scenarios.

As shown in FIG2 , an embodiment of the present application provides a power control method, including:

Step 201, the terminal adjusts the uplink power control parameters according to the status of the serving cell group;

Among them, the service cell group includes: the main cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameter is used to control the uplink transmission power of the terminal in dual connection DC mode and/or multi-connection MC mode.

It should be noted that the uplink power control parameters (i.e., uplink power control parameters) in the embodiments of the present application mainly include at least one of the following: uplink power control mode (i.e., uplink power control mode), the maximum uplink transmit power configuration of the UE, the maximum uplink transmit power configuration of the UE in the corresponding cell group, the terminal capabilities related to uplink power control, and the time offset (T_offset) used by the UE in the dynamic mode.

The uplink power control parameter is used to control the uplink transmission power of the terminal in the dual connection DC mode, and the DC mode can be NR-DC, EN-DC, NGEN-DC, NE-DC, etc.

The uplink power control parameter may be configured by the network side when the terminal is in the dual connection mode. Then, when the terminal enters the multi-connection mode, the uplink power control parameter may also be applied to the multi-connection mode based on the protocol agreement or the instruction of the network side.

Another embodiment is that when the terminal operates in the multi-connection mode, the network side can configure the terminal with uplink power control parameters dedicated to the multi-connection mode. For example, the network side can configure the uplink power control mode in the multi-connection mode to independently perform power control for each cell group. For another example, when the MCG and two SCGs of the terminal are both activated, the terminal performs independent uplink power control for each cell group based on the maximum uplink transmission power of the UE configured by the network side, the maximum uplink transmission power of the MCG, and the maximum uplink transmission power of the two SCGs.

It should be noted here that the uplink power control mode mentioned in the embodiment of the present application includes three modes in uplink power sharing and independent power control of each cell group (also referred to as independent power control mode).

The specific implementation method of this application is described below.

Case 1: The terminal sends an indication to the master node (MN) based on the first configuration.

Optionally, in this case, step 201 is implemented as follows:

When the terminal requests the first configuration from the network side or receives the first configuration, sending first indication information to the master node MN;

It should be noted that the network side mentioned here can refer to MN or secondary node (SN), that is, the terminal can request the first configuration from MN or SN; optionally, the terminal can receive the first configuration from MN or SN.

Optionally, the first configuration is used to indicate one of the following:

A11, configuring the terminal to a multi-connection mode;

In this case, at least one SCG is configured for the terminal so that the terminal is in multi-connection mode.

A12. Configure multiple SCGs for the terminal;

It should be noted that the first configuration in this case can be used to configure multiple SCGs for the terminal at one time; or, the first configuration is used to configure other SCGs for the terminal when the terminal has been configured with one SCG.

In the present application, the statements that the terminal is configured in multi-connection mode and is configured with multiple SCGs can be interchangeable when describing specific methods.

Optionally, the first indication information is used to indicate one of the following:

A21, the uplink power control mode supported by the terminal is semi-static mode 1 (i.e., semi-static mode 1);

A22, the terminal only supports independent power control of each serving cell group;

It should be noted that the semi-static mode 1 mentioned in the embodiment of the present application can also be understood as performing independent power control on each cell group.

One implementation method is that before reporting the first indication information, the terminal has reported the supported uplink power control mode, and reporting the first indication information again means that the terminal re-reports its own uplink power control mode (replacing the previously reported one), or the terminal disables part of the uplink power control mode and only enables the uplink power control mode currently indicated by the terminal in the first indication information.

A23, request to configure the uplink power control mode to semi-static mode 1;

A24. Request to configure independent power control for each service cell group.

It should be noted that the above-mentioned A21 and A22 can be regarded as reporting of terminal capabilities, that is, the terminal can directly request the first configuration from the network side, or send the terminal's uplink power control capabilities to the MN after receiving the first configuration, and the MN configures the uplink power control mode based on the terminal's capabilities; and the above-mentioned A23 and A24 can be regarded as the terminal actively requesting which uplink power control mode to configure, that is, the terminal can directly request the first configuration from the network side, or request the MN to update the uplink power control mode after receiving the first configuration, and the MN determines whether to reconfigure the uplink power control mode for the terminal based on the terminal's request.

It should be noted that the terminal can directly send the first indication information to the MN when requesting the first configuration from the network side or receiving the first configuration. Optionally, in order to further reduce the sending frequency of the first indication information, in an embodiment of the present application, when the terminal requests the first configuration from the network side or receives the first configuration, it can also determine whether the first condition is met at the same time. Only when the first condition is met, the terminal sends the first indication information to the MN.

Optionally, the first condition includes at least one of the following:

A31, the first configuration is SN generation;

A32. The first configuration is sent as SN to the terminal;

A33: The first configuration is invisible to the MN;

It should be noted that, in the three cases A31 to A33, since the first configuration is determined by the SN, the MN does not know what configuration the SN has performed, and the first indication information needs to be sent to the MN to ensure that the MN and the terminal have consistent understanding.

A34, the current uplink power control mode of the terminal is semi-static mode 2;

Specifically, semi-static mode 2 (ie, semi-static mode 2) is that when the UE determines the uplink power on the MCG, it needs to consider the uplink and downlink frame structure of the SCG (eg, the configuration of the time division duplex pattern (TDD pattern)).

Optionally, in this case, the first condition also includes at least one of the following:

A341. The TDD patterns of the multiple SCGs satisfy a second condition, where the second condition includes: the TDD patterns of the multiple SCGs are different, or the difference between the TDD patterns of the multiple SCGs is greater than or equal to a first threshold;

For example, the different TDD patterns of the multiple SCGs may be different in at least one of the TDD pattern common configuration and the dedicated configuration;

The difference in TDD patterns of the plurality of SCGs may be that a difference in at least one of a common configuration and a dedicated configuration of the TDD pattern is greater than or equal to a first threshold.

The first threshold may be the number or ratio of different uplink and downlink transmission directions in the TDD patterns of the multiple SCGs in the corresponding subframes or time slots or orthogonal frequency division multiplexing (OFDM) symbols.

A342. The SCG maximum transmission power corresponding to multiple SCGs satisfies the third condition, and the third condition includes: the SCG maximum transmission power corresponding to multiple SCGs is different, or the difference in the SCG maximum transmission power corresponding to multiple SCGs is greater than or equal to the second threshold.

It should be noted that the method in A342 can also be applied to the MCG maximum transmit power and/or the UE maximum transmit power.

A35, the current uplink power control mode of the terminal is dynamic mode;

Optionally, in this case, the first condition also includes at least one of the following:

A351. The time domain offsets corresponding to the multiple SCGs meet the fourth condition, wherein the fourth condition includes: the time domain offsets corresponding to the multiple SCGs are different, or the difference between the time domain offsets corresponding to the multiple SCGs is greater than or equal to the third threshold;

计算出的时域偏移量T-offset值。It should be noted that the time domain offset mentioned here refers to the time offset (T_offset) used by the UE when the uplink power control mode is dynamic mode. Since it can be considered that the MCG configuration does not change with the SCG conversion, that is, only the SCG configuration will change due to the SCG conversion, then the time domain offset corresponding to the SCG can be understood as, under a certain SCG configuration, the terminal based on the SCG configuration, MCG configuration and formula

The calculated time domain offset T-offset value.

A352. The SCG maximum transmission power corresponding to multiple SCGs satisfies the fifth condition, and the fifth condition includes: the SCG maximum transmission powers corresponding to multiple SCGs are different, or the difference in the SCG maximum transmission powers corresponding to multiple SCGs is greater than or equal to the fourth threshold.

It should be noted that the method in A352 can also be applied to MCG maximum transmit power and/or UE maximum transmit power.

It should be noted that the first threshold, the second threshold, the third threshold and the fourth threshold mentioned above may be a protocol agreement, or may be a network-side configuration or pre-configuration.

Optionally, an embodiment of the present application further provides a method for updating an uplink power control mode according to a terminal service cell group status. Specifically, when the terminal receives a first release indication, a second indication information is sent to the MN.

It should be noted that the second indication information satisfies one of the following:

A41, used to update the uplink power control mode supported by the terminal;

It should be noted that in this case, the terminal automatically triggers the update. As long as the first release indication is received, the terminal automatically updates the supported uplink power control mode and informs the MN of its own capability (referring to the capability of supporting which uplink power control mode).

A42, used to request the MN to reconfigure the uplink power control mode;

It should be noted that in this case, the terminal requests the MN to reconfigure the uplink power control mode, that is, as long as the first release indication is received, the terminal sends the second indication information to the MN, requesting the MN to reconfigure the uplink power control mode for it.

The first release indication is used to indicate at least one of the following:

A51, release multi-connection mode configuration;

A52. Release the configuration of at least one of the SCGs.

The following is an example of how this situation can be used in practical applications.

Example 1: Once the UE is configured with the second SCG or multi-connection mode by the SN, the UE reports its uplink power control capability to the MN as semi-static mode 1

The specific process for this use case includes:

Step S101: The UE is configured with an MCG and a first SCG and operates in a dual connection mode. The dual connection uplink power control mode is configured as a dynamic mode or a semi-static mode 2;

Step S102: The UE receives the configuration of the second SCG or the UE is configured for multi-connection mode.

Step S103: When condition A is met, the UE indicates to the network that it only supports semi-static mode 1:

Condition A includes one of the following:

A1. The configuration of the second SCG or the multi-connection configuration is configured by the SN and is not visible to the MN;

A2. The current power control mode of the UE is semi-static mode 2, and the TDD patterns (common configuration) of the first SCG and the second SCG are different or the difference exceeds a preset value;

A3. The current power control mode of the UE is dynamic mode, and the T_Offset of the first SCG and the second SCG is different, or the difference exceeds a certain preset range;

Step S104: The UE receives a reconfiguration message, and its dual connection uplink power control mode is configured as semi-static mode 1.

Optionally, after step S104, when the UE switches between the first SCG and the second SCG, the uplink power control mode is always semi-static mode 1. If the UE receives a second SCG release indication or a multi-connection release indication from the network side, the UE may update the relevant capabilities of the uplink power control mode to the network side.

Case 2: Related operations performed by the terminal when the SCG switches

Optionally, in this case, step 201 is implemented as follows:

In the case where the terminal performs SCG conversion, the terminal performs a first operation;

The first operation includes at least one of the following:

B11. If the uplink power control mode before the conversion is a dynamic mode, and the terminal maintains the uplink power control mode unchanged after the conversion, the terminal determines the time offset used after the conversion by a first method;

Optionally, the first method includes at least one of the following:

B111, determining a first time offset as the time offset used after conversion, wherein the first time offset is the smallest or largest one of the time offset before conversion and the time offset calculated according to the SCG after conversion;

B112, if the difference between the time offset before conversion and the time offset calculated according to the SCG after conversion is greater than or equal to a fifth threshold, determining the time offset used after conversion to be a default value;

For example, after subtracting the time offset with the larger time offset from the time offset with the smaller time offset, if the difference (the difference is a positive value) is greater than or equal to the fifth threshold, it indicates that the time offset before and after the conversion is significantly different, and the time offset before or after the conversion cannot be used at this time, but a preset default value is used. For another example, after subtracting the time offset calculated according to the converted SCG from the time offset before the conversion, if the difference (positive or negative value) is greater than or equal to the fifth threshold, it indicates that the time offset before and after the conversion is significantly different, and the time offset before or after the conversion cannot be used at this time, but a preset default value is used.

B113. If the difference between the time offset before conversion and the time offset calculated according to the SCG after conversion is less than or equal to a sixth threshold, determine that the time offset used after conversion is a default value.

For example, after subtracting the time offset with the smaller time offset from the time offset with the larger time offset, if the difference (the difference is a negative value) is less than or equal to the sixth threshold, it indicates that the time offsets before and after the conversion are greatly different, and the time offset before or after the conversion cannot be used at this time, but a preset default value is used. For another example, after subtracting the time offset calculated according to the converted SCG from the time offset before the conversion, if the difference (negative or positive value) is less than or equal to the sixth threshold, it indicates that the time offsets before and after the conversion are greatly different, and the time offset before or after the conversion cannot be used at this time, but a preset default value is used.

It should be noted here that B112 and B113 can be understood as if the absolute value of the difference between the time offset before conversion and the time offset calculated according to the converted SCG is greater than or equal to the preset value, then the time offset used after conversion is determined to be the default value.

The following is an example of how this situation can be used in practical applications.

Example 2: In dynamic power control mode, during SCG Switch, UE always uses the minimum or default value of T_Offset before and after Switch.

The specific process for this use case includes:

Step S201: UE is configured with MCG, first SCG, and second SCG;

Among them, the dual connection uplink power control mode is configured as a dynamic mode, and the time offsets calculated according to the first SCG and the second SCG are T_offset1 and T_offset2;

Step S202: If the terminal performs SCG Switching, for example, from the first SCG Switch to the second SCG, the terminal determines the T_offset used after Switching through method B;

Method B includes one of the following:

B1. Select the minimum value of T_offset before and after Switch as the currently selected T_offset value;

For example, if T_offset1 is the smallest, the time offset used after conversion is determined to be T_offset1.

B2. If the T_offset value change before and after the Switch exceeds a preset threshold, the UE configures the current time offset as a default value.

B12, determining the uplink power control mode according to the relationship between the frequency range of the activated SCG and the frequency range of the MCG after conversion;

It should be noted that the further implementation of this situation is as follows:

B121. If the frequency range of the activated SCG after conversion is different from the frequency range of the MCG, the terminal determines that the uplink power control mode used after conversion is the independent power control mode or the semi-static mode 1;

The following is an example of how this situation can be used in practical applications.

Example 3: Uplink power control mode change triggered by SCG Switch, from the same FR to a different FR

Step S301: The UE is configured with MCG (FR1), the first SCG (FR1), and the second SCG (FR2). The dual connection uplink power control mode is configured as dynamic mode;

Step S302: The terminal works in the MCG and the first SCG and uses a dynamic mode to perform uplink power control;

Step S303: If the UE performs SCG Switching, from the first SCG Switch to the second SCG, since the MCG and the second SCG are different FRs, the UE performs independent power control for each cell group or uses semi-static mode 1 for uplink power control.

B122. If the frequency range of the activated SCG after conversion is the same as the frequency range of the MCG, the terminal performs a second operation;

Specifically, the second operation includes one of the following:

B1221, determining that the uplink power control mode used after the conversion is the pre-configured uplink power control mode;

It should be noted that when the terminal is performing dual connection configuration, it can be configured in the pre-configured uplink power control mode under the dual connection. The uplink power control mode used before the conversion is inconsistent with the pre-configured uplink power control mode. In this case, since the frequency range of the activated SCG after the conversion is the same as the frequency range of the MCG, the terminal can use the previously configured uplink power control mode.

B1222, the terminal ignores the pre-configured uplink power control mode and determines that the uplink power control mode used after the conversion is the independent power control mode or the semi-static mode 1;

It should be noted that in this case, the terminal does not consider the configured uplink power control mode and directly performs independent power control after the conversion.

The following is an example of how this situation can be used in practical applications.

Example 4: Uplink power control mode change triggered by SCG Switch, switching from different FR to the same FR

Step S401: The UE is configured with MCG (FR2), the first SCG (FR1), and the second SCG (FR2). The dual connection uplink power control mode is preconfigured as a dynamic mode;

Step S402: The terminal works in the MCG and the first SCG, and the UE performs independent power control;

Step S403: If the UE performs SCG Switching from the first SCG Switch to the second SCG, since the MCG and the second SCG are the same FR, the UE performs the dynamic mode according to the pre-configured uplink power control mode, or the UE ignores the pre-configured uplink power control mode and continues to perform independent power control.

B13. Sending time offset change information to MN;

Optionally, the time offset change information includes at least one of the following:

SCG conversion indication, the time offset after the change, or the change in the time offset, the SCG identifier before the conversion and the SCG identifier after the conversion.

The following is an example of how this situation can be used in practical applications.

Example 5: After SCG Switch, UE initiates T_offset update negotiation process

Step S501: The UE is configured with an MCG, a first SCG, and a second SCG. The dual connection uplink power control mode is configured as a dynamic mode.

Step S502: Once the UE executes SCG Switching, from the first SCG Switch to the second SCG, the UE reports the time offset change information carrying the SCG switching indication to the MN to notify the MN that the UE has executed SCG Switching.

Case 3: The terminal determines the uplink power control mode based on the transmission status

Optionally, in this case, step 201 is implemented as follows:

When the first transmission of the terminal is in the first state, determining that the uplink power control mode is a dynamic mode;

The first transmission is MCG transmission or SCG transmission;

The first state includes at least one of the following:

Suspended, exception occurred, failed, deactivated.

Optionally, when the first transmission of the terminal is resumed, the uplink power control mode is determined to be the uplink power control mode used before the first transmission was in the first state or the configured uplink power control mode.

The following is an example of how this situation can be used in practical applications.

Example 6: Uplink power control during fast MCG recovery

Step S601: The UE is configured with MCG and SCG, and the uplink power control mode is configured as semi-static mode 1;

Step S602: A radio link failure occurs in the MCG;

Step S603: The UE initiates the MCG failure information process (i.e., reports the MCG failure through the SCG). Once the process is initiated, the UE suspends the transmission of the MCG and sends the MCG failure information message through the SCG;

Step S604: Once the UE suspends the MCG transmission, the UE considers that its uplink power control mode is the dynamic mode.

Step S605: Once the UE receives the MCG synchronization reconfiguration message or once the MCG transmission is restored, the UE considers that its uplink power control mode is restored to semi-static mode 1.

Example 7: UE uplink power control after SCG deactivation

Step S701: The UE is configured with MCG and SCG, and the uplink power control mode is configured as semi-static mode 1 (i.e., hard power splitting);

Step S702: Once the SCG is deactivated, the UE considers that its uplink power control mode is a dynamic mode.

Step S703: Once the SCG is activated or the UE initiates the SCG activation process, the UE considers that its uplink power control mode is restored to semi-static mode 1.

Case 4: The terminal re-requests to configure at least one SCG

Optionally, in this case, the implementation of step 201 includes at least one of the following:

C11. Request the network side to configure or reconfigure at least one SCG so that the maximum preparation time of multiple SCGs of the terminal does not exceed the maximum preparation time of the MCG;

MCG的最大准备时间指的是UE在MCG中的最大准备时间

若终端的多个SCG的最大准备时间都小于等于MCG的最大准备时间，那么时间偏移量由MCG的最大准备时间决定，进而SCG转换操作不会改变时间偏移量。It should be noted that the maximum preparation time of SCG refers to the maximum preparation time of UE in SCG.

The maximum preparation time of MCG refers to the maximum preparation time of UE in MCG.

If the maximum preparation times of multiple SCGs of the terminal are less than or equal to the maximum preparation time of the MCG, then the time offset is determined by the maximum preparation time of the MCG, and the SCG conversion operation will not change the time offset.

C12. Requesting the network side to configure or reconfigure at least one SCG so that the maximum preparation time of multiple SCGs of the terminal does not exceed the seventh threshold;

It should be noted that the seventh threshold may be a protocol agreement, or may be a network-side configuration or pre-configuration.

C13. Request the network side to configure or reconfigure at least one SCG so that the time division duplex patterns of multiple SCGs of the terminal are generally configured the same or have associated patterns.

It should be noted that the network side mentioned in this case may refer to MN or SN, that is, the terminal may request the MN to configure or reconfigure at least one SCG, or may request the SN to configure or reconfigure at least one SCG.

It should be noted that the terminal requests the network side to configure or reconfigure at least one SCG so that the terminal and the MN have the same understanding of T_Offset determined according to at least one SCG configured by the network side.

It should be noted that in the dual connection or multi-connection mode of the embodiment of the present application, the terminal can more flexibly apply a reasonable uplink power control mode according to the actual situation (for example, an SCG Switch occurs, or the MCG wireless link fails, or the SCG is deactivated), thereby improving the uplink transmission performance of the UE.

It should be noted that the power control method provided in the embodiment of the present application can be executed by a power control device, or a control module in the power control device for executing the power control method. In the embodiment of the present application, the power control device provided in the embodiment of the present application is described by taking the power control device executing the power control method as an example.

As shown in FIG3 , an embodiment of the present application provides a power control device 300, including:

An adjustment module 301, configured to adjust uplink power control parameters according to the status of the serving cell group;

Among them, the service cell group includes: the main cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameter is used to control the uplink transmission power of the terminal in dual connection DC mode and/or multi-connection MC mode.

Optionally, the adjustment module 301 includes:

A first sending unit, configured to send first indication information to the master node MN when requesting a first configuration from the network side or receiving the first configuration;

The first indication information is used to indicate one of the following:

The uplink power control mode supported by the terminal is semi-static mode 1;

The terminal only supports independent power control for each serving cell group;

Request to configure the uplink power control mode to semi-static mode 1;

Request to configure independent power control for each serving cell group;

The first configuration is used to: configure the terminal to a multi-connection mode, or configure multiple SCGs for the terminal.

Optionally, the first sending unit is used to:

When the first condition is met, sending first indication information to the MN;

The first condition includes at least one of the following:

The first configuration is generated by the secondary node SN;

The first configuration is a SN sent to the terminal;

The first configuration is invisible to the MN;

The current uplink power control mode of the terminal is semi-static mode 2;

The current uplink power control mode of the terminal is dynamic mode.

Optionally, when the first condition includes that the current uplink power control mode of the terminal is semi-static mode 2, the first condition also includes at least one of the following:

The time division duplex TDD patterns of the multiple SCGs satisfy a second condition, wherein the second condition includes: the TDD patterns of the multiple SCGs are different, or the difference between the TDD patterns of the multiple SCGs is greater than or equal to a first threshold;

The SCG maximum transmission power corresponding to multiple SCGs satisfies a third condition, and the third condition includes: the SCG maximum transmission power corresponding to multiple SCGs is different, or the difference in the SCG maximum transmission power corresponding to multiple SCGs is greater than or equal to a second threshold.

Optionally, when the first condition includes that the current uplink power control mode of the terminal is a dynamic mode, the first condition also includes at least one of the following:

The time domain offsets corresponding to the multiple SCGs satisfy a fourth condition, wherein the fourth condition includes: the time domain offsets corresponding to the multiple SCGs are different, or the difference between the time domain offsets corresponding to the multiple SCGs is greater than or equal to a third threshold;

The SCG maximum transmission power corresponding to multiple SCGs satisfies the fifth condition, and the fifth condition includes: the SCG maximum transmission power corresponding to multiple SCGs is different, or the difference between the SCG maximum transmission power corresponding to multiple SCGs is greater than or equal to the fourth threshold.

Optionally, the device further includes:

a third sending module, configured to send second indication information to the MN when receiving the first release indication, wherein the second indication information is used to update the uplink power control mode supported by the terminal or to request the MN to reconfigure the uplink power control mode;

The first release indication is used to indicate at least one of the following:

Release multi-connection mode configuration;

Release the configuration of at least one of the SCGs.

Optionally, the adjustment module 301 includes:

An execution unit, configured to execute a first operation when performing an SCG conversion;

The first operation includes at least one of the following:

If the uplink power control mode before the conversion is a dynamic mode, and the terminal maintains the uplink power control mode unchanged after the conversion, the terminal determines the time offset used after the conversion by a first method;

Determine the uplink power control mode according to the relationship between the frequency range of the activated SCG and the frequency range of the MCG after conversion;

Sending time offset change information to MN;

The first method includes at least one of the following:

Determine a first time offset as the time offset used after the conversion, wherein the first time offset is the smallest or largest of the time offset before the conversion and the time offset calculated according to the SCG after the conversion;

If the difference between the time offset before conversion and the time offset calculated according to the SCG after conversion is greater than or equal to a fifth threshold, determining that the time offset used after conversion is a default value;

If the difference between the time offset before conversion and the time offset calculated according to the SCG after conversion is less than or equal to the sixth threshold, the time offset used after conversion is determined to be a default value.

Optionally, the determining of an implementation method of the uplink power control mode according to a relationship between the converted activated SCG frequency range and the MCG frequency range comprises one of the following:

If the frequency range of the activated SCG after conversion is different from the frequency range of the MCG, the terminal determines that the uplink power control mode used after conversion is the independent power control mode or the semi-static mode 1;

If the frequency range of the activated SCG after conversion is the same as the frequency range of the MCG, the terminal performs a second operation;

The second operation includes one of the following:

Determining that the uplink power control mode used after the conversion is the pre-configured uplink power control mode;

The terminal ignores the pre-configured uplink power control mode and determines that the uplink power control mode used after the conversion is the independent power control mode or the semi-static mode one.

Optionally, the time offset change information includes at least one of the following:

SCG conversion indication, time offset after change, change in time offset, SCG identifier before conversion and SCG identifier after conversion.

Optionally, the adjustment module 301 includes:

A determining unit, configured to determine that the uplink power control mode is a dynamic mode when the first transmission of the terminal is in a first state;

The first transmission is MCG transmission or SCG transmission;

The first state includes at least one of the following:

Suspended, exception occurred, failed, deactivated.

Optionally, the device further includes:

The determination module is used to determine, when the first transmission is resumed, that the uplink power control mode is the uplink power control mode used before the first transmission is in the first state or the configured uplink power control mode.

Optionally, the adjustment module 301 includes at least one of the following:

A first requesting unit, configured to request the network side to configure or reconfigure at least one SCG so that the maximum preparation time of multiple SCGs of the terminal does not exceed the maximum preparation time of the MCG;

A second requesting unit, configured to request the network side to configure or reconfigure at least one SCG so that the maximum preparation time of multiple SCGs of the terminal does not exceed a seventh threshold;

The third request unit is used to request the network side to configure or reconfigure at least one SCG so that the time division duplex patterns of multiple SCGs of the terminal are generally configured the same or have associated patterns.

It should be noted that the device embodiment is a device corresponding to the above-mentioned method. All implementation methods in the above-mentioned method embodiment are applicable to the device embodiment and can achieve the same technical effect, which will not be repeated here.

The power control device in the embodiment of the present application can be a device, a device or electronic device with an operating system, or a component, an integrated circuit, or a chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal can include but is not limited to the types of terminals 11 listed above, and the non-mobile terminal can be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

The power control device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 2 and achieve the same technical effect. To avoid repetition, it will not be described here.

The embodiment of the present application also provides a terminal, including a processor and a communication interface, the processor being used to adjust uplink power control parameters according to the state of a serving cell group;

Among them, the service cell group includes: the main cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameter is used to control the uplink transmission power of the terminal in dual connection DC mode and/or multi-connection MC mode.

The terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to the terminal embodiment and can achieve the same technical effect. Specifically, Figure 4 is a schematic diagram of the hardware structure of a terminal implementing the embodiment of the present application.

The terminal 400 includes but is not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, a display unit 406, a user input unit 407, an interface unit 408, a memory 409, and at least some of the components of a processor 410.

Those skilled in the art will appreciate that the terminal 400 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 410 through a power management system, so as to implement functions such as managing charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG4 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.

It should be understood that in the embodiment of the present application, the input unit 404 may include a graphics processor (Graphics Processing Unit, GPU) 4041 and a microphone 4042, and the graphics processor 4041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 407 includes a touch panel 4071 and other input devices 4072. The touch panel 4071 is also called a touch screen. The touch panel 4071 may include two parts: a touch detection device and a touch controller. Other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 401 receives downlink data from the network side device and sends it to the processor 410 for processing; in addition, the uplink data is sent to the network side device. Generally, the radio frequency unit 401 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

The memory 409 can be used to store software programs or instructions and various data. The memory 409 can mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area can store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 409 can include a high-speed random access memory, and can also include a non-volatile memory, wherein the non-volatile memory can be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device.

The processor 410 may include one or more processing units; optionally, the processor 410 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and application programs or instructions, etc., and the modem processor mainly processes wireless communications, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 410.

The processor 410 is used to implement:

Adjust uplink power control parameters according to the status of the serving cell group;

Among them, the service cell group includes: the main cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameter is used to control the uplink transmission power of the terminal in dual connection DC mode and/or multi-connection MC mode.

The terminal of the embodiment of the present application adjusts the uplink power control parameters according to the status of the service cell group, thereby ensuring the uplink power performance of the UE and ensuring communication reliability.

Optionally, the radio frequency unit 401 is used to implement:

When requesting a first configuration from the network side or receiving the first configuration, sending first indication information to the master node MN;

The first indication information is used to indicate one of the following:

The uplink power control mode supported by the terminal is semi-static mode 1;

The terminal only supports independent power control for each serving cell group;

Request to configure the uplink power control mode to semi-static mode 1;

Request to configure independent power control for each serving cell group;

The first configuration is used to: configure the terminal to a multi-connection mode, or configure multiple SCGs for the terminal.

Optionally, the radio frequency unit 401 is further configured to implement:

When the first condition is met, sending first indication information to the MN;

The first condition includes at least one of the following:

The first configuration is generated by the secondary node SN;

The first configuration is a SN sent to the terminal;

The first configuration is invisible to the MN;

The current uplink power control mode of the terminal is semi-static mode 2;

The current uplink power control mode of the terminal is dynamic mode.

Optionally, when the first condition includes that the current uplink power control mode of the terminal is semi-static mode 2, the first condition also includes at least one of the following:

The time division duplex TDD patterns of the multiple SCGs satisfy a second condition, wherein the second condition includes: the TDD patterns of the multiple SCGs are different, or the difference between the TDD patterns of the multiple SCGs is greater than or equal to a first threshold;

The SCG maximum transmission power corresponding to multiple SCGs satisfies a third condition, and the third condition includes: the SCG maximum transmission power corresponding to multiple SCGs is different, or the difference in the SCG maximum transmission power corresponding to multiple SCGs is greater than or equal to a second threshold.

Optionally, when the first condition includes that the current uplink power control mode of the terminal is a dynamic mode, the first condition also includes at least one of the following:

The time domain offsets corresponding to the multiple SCGs satisfy a fourth condition, wherein the fourth condition includes: the time domain offsets corresponding to the multiple SCGs are different, or the difference between the time domain offsets corresponding to the multiple SCGs is greater than or equal to a third threshold;

The SCG maximum transmission power corresponding to multiple SCGs satisfies the fifth condition, and the fifth condition includes: the SCG maximum transmission power corresponding to multiple SCGs is different, or the difference between the SCG maximum transmission power corresponding to multiple SCGs is greater than or equal to the fourth threshold.

Optionally, the radio frequency unit 401 is further configured to implement:

In case of receiving the first release indication, sending second indication information to the MN, where the second indication information is used to update the uplink power control mode supported by the terminal, or to request the MN to reconfigure the uplink power control mode;

The first release indication is used to indicate at least one of the following:

Release multi-connection mode configuration;

Release the configuration of at least one of the SCGs.

Optionally, the processor 410 is configured to implement:

In the case where the terminal performs SCG conversion, performing a first operation;

The first operation includes at least one of the following:

If the uplink power control mode before the conversion is a dynamic mode, and the terminal maintains the uplink power control mode unchanged after the conversion, the terminal determines the time offset used after the conversion by a first method;

Determine the uplink power control mode according to the relationship between the frequency range of the activated SCG and the frequency range of the MCG after conversion;

Sending time offset change information to MN;

The first method includes at least one of the following:

Determine a first time offset as the time offset used after the conversion, wherein the first time offset is the smallest or largest of the time offset before the conversion and the time offset calculated according to the SCG after the conversion;

If the difference between the time offset before conversion and the time offset calculated according to the SCG after conversion is greater than or equal to a fifth threshold, determining that the time offset used after conversion is a default value;

If the difference between the time offset before conversion and the time offset calculated according to the SCG after conversion is less than or equal to the sixth threshold, the time offset used after conversion is determined to be a default value.

Optionally, the processor 410 is configured to implement one of the following:

If the frequency range of the activated SCG after conversion is different from the frequency range of the MCG, the terminal determines that the uplink power control mode used after conversion is the independent power control mode or the semi-static mode 1;

If the frequency range of the activated SCG after conversion is the same as the frequency range of the MCG, the terminal performs a second operation;

The second operation includes one of the following:

Determining that the uplink power control mode used after the conversion is the pre-configured uplink power control mode;

The terminal ignores the pre-configured uplink power control mode and determines that the uplink power control mode used after the conversion is the independent power control mode or the semi-static mode one.

Optionally, the time offset change information includes at least one of the following:

SCG conversion indication, time offset after change, change in time offset, SCG identifier before conversion and SCG identifier after conversion.

Optionally, the processor 410 is configured to implement:

When the first transmission of the terminal is in the first state, determining that the uplink power control mode is a dynamic mode;

The first transmission is MCG transmission or SCG transmission;

The first state includes at least one of the following:

Suspended, exception occurred, failed, deactivated.

Optionally, the processor 410 is further configured to implement:

When the first transmission of the terminal is resumed, the uplink power control mode is determined to be the uplink power control mode used before the first transmission was in the first state or the configured uplink power control mode.

Optionally, the radio frequency unit 401 is further configured to implement at least one of the following:

Requesting the network side to configure or reconfigure at least one SCG so that the maximum preparation time of multiple SCGs of the terminal does not exceed the maximum preparation time of the MCG;

Requesting the network side to configure or reconfigure at least one SCG so that the maximum preparation time of multiple SCGs of the terminal does not exceed a seventh threshold;

Request the network side to configure or reconfigure at least one SCG so that the time division duplex patterns of multiple SCGs of the terminal are generally configured the same or have associated patterns.

Preferably, an embodiment of the present application also provides a terminal, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, each process of the power control method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

The embodiment of the present application also provides a computer-readable storage medium, on which a program or instruction is stored, which, when executed by a processor, implements each process of the power control method embodiment and can achieve the same technical effect. To avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

As shown in FIG5 , the embodiment of the present application further provides a power control method, including:

Step 501, the master node MN sends first information to the slave node SN;

The first information includes at least one of the following:

D11, when the terminal is configured in multi-connection mode and the uplink power control mode is configured in dynamic mode, the maximum time domain offset that needs to be met when the SN configures or schedules SCG transmission;

通过MN控制

使得终端与MN计算得到的T_Offset一致，以此能够保证MN对终端的调度准确性。It should be noted that the maximum time domain offset refers to the maximum preparation time of the UE in the SCG.

Control via MN

The T_Offset calculated by the terminal and the MN is made consistent, thereby ensuring the scheduling accuracy of the MN for the terminal.

D12, a first request, the first request is used to indicate at least one of the following: the SN configures the same time division duplex TDD pattern common configuration for multiple SCGs, and the TDD pattern configurations configured by the SN for multiple SCGs have associated patterns;

It should be noted that by controlling the SCG configuration of the SN through the MN, the MN can clearly know how the SN configures the SCG, thereby avoiding the situation where the SCG configuration is invisible to the MN, thereby ensuring the scheduling accuracy of the MN for the terminal.

The following is an example of how this situation can be used in practical applications.

Example 8: The network side sends configuration to ensure that the configuration parameters meet the requirements

这两项分别由MCG配置和SCG配置决定。MN可以向SN指示

的最大取值，用于SN来确定合适的SCG配置，即SCG配置所得出的

不应超过MN给出的限制。SN在配置SCG后，会将实际的

发送给MN，而MN知道

从而MN可以计算出T_offset。基于此，网络侧可以采用下述方法来解决：In dynamic power control mode, the parameter T_offset value is

These two items are determined by the MCG configuration and SCG configuration respectively. The MN can indicate to the SN

The maximum value of is used by SN to determine the appropriate SCG configuration, that is, the value obtained by SCG configuration

The limit given by MN should not be exceeded. After configuring SCG, SN will

Sent to MN, and MN knows

Therefore, the MN can calculate T_offset. Based on this, the network side can adopt the following method to solve it:

的最大取值为小于等于

的某个数值，即控制T_offset值始终为

If the MN configures the UE's uplink power control mode to be dynamic, and the UE is configured with multiple SCGs through the MN, the MN can control the T_offset value to remain unchanged during the above-mentioned Xn interface interactive signaling process, for example, the MN indicates to the SN

The maximum value is less than or equal to

A certain value, that is, to control the T_offset value to always be

Similarly, if the MN configures the UE's uplink power control mode to semi-static mode 2, and the UE is configured with multiple SCGs through the MN, the MN requests the SN to configure multiple SCG TDD pattern common configurations to the same or related patterns.

It should be noted that the second SCG may also be configured by the SN and may not be visible to the MN. In this case, the SN should ensure that the configuration meets the above requirements.

It should be noted that the embodiment of the present application controls the SCG configuration of the SN through the MN to avoid the situation where the SCG configuration is invisible to the MN and affects the scheduling of the terminal by the MN. The embodiment of the present application can ensure the scheduling accuracy of the terminal by the MN.

As shown in FIG6 , the embodiment of the present application further provides a power control device 600, including:

A first sending module, configured to send first information to the secondary node SN;

The first information includes at least one of the following:

When the terminal is configured in multi-connection mode and the uplink power control mode is configured in dynamic mode, the maximum time domain offset that needs to be met when the SN configures or schedules SCG transmission;

The first request is used to indicate at least one of the following: the SN configures the same time division duplex TDD pattern common configuration for multiple SCGs, and the TDD pattern configurations configured by the SN for multiple SCGs have associated patterns.

The device embodiment is a device corresponding to the above method. All implementation methods in the above method embodiment are applicable to the device embodiment and can achieve the same technical effect, which will not be repeated here.

Preferably, an embodiment of the present application also provides a network node, which is a main node MN, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, each process of the power control method embodiment applied to the MN side is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

An embodiment of the present application also provides a computer-readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the power control method embodiment applied to the MN side are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

The embodiment of the present application further provides a network node, the network node being a primary node MN, including a processor and a communication interface, the communication interface being used to send first information to a secondary node SN;

The first information includes at least one of the following:

When the terminal is configured in multi-connection mode and the uplink power control mode is configured in dynamic mode, the maximum time domain offset that needs to be met when the SN configures or schedules SCG transmission;

The first request is used to indicate at least one of the following: the SN configures the same time division duplex TDD pattern common configuration for multiple SCGs, and the TDD pattern configurations configured by the SN for multiple SCGs have associated patterns.

This network node embodiment corresponds to the above-mentioned MN side method embodiment. Each implementation process and implementation method of the above-mentioned method embodiment can be applied to this network node embodiment and can achieve the same technical effect.

Specifically, the embodiment of the present application further provides a network node, which is a master node MN. As shown in FIG7 , the network node 700 includes: an antenna 701, a radio frequency device 702, and a baseband device 703. The antenna 701 is connected to the radio frequency device 702. In the uplink direction, the radio frequency device 702 receives information through the antenna 701 and sends the received information to the baseband device 703 for processing. In the downlink direction, the baseband device 703 processes the information to be sent and sends it to the radio frequency device 702. The radio frequency device 702 processes the received information and sends it out through the antenna 701.

The frequency band processing device may be located in the baseband device 703 . The method performed by the network device in the above embodiment may be implemented in the baseband device 703 . The baseband device 703 includes a processor 704 and a memory 705 .

The baseband device 703 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 7, one of which is, for example, a processor 704, which is connected to the memory 705 to call the program in the memory 705 and execute the network device operations shown in the above method embodiment.

The baseband device 703 may further include a network interface 706 for exchanging information with the radio frequency device 702 . The interface may be, for example, a common public radio interface (CPRI).

Specifically, the network device of the embodiment of the present invention also includes: instructions or programs stored in the memory 705 and executable on the processor 704. The processor 704 calls the instructions or programs in the memory 705 to execute the method executed by each module shown in Figure 6 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

As shown in FIG8 , the embodiment of the present application further provides a power control method, including:

Step 801: When a terminal performs a secondary cell group SCG conversion and the uplink power control mode of the terminal is a dynamic mode, the secondary node SN sends a time offset used by the terminal on the current SCG to the primary node MN.

The following is an example of how this situation can be used in practical applications.

Example 9: After SCG Switch, SN initiates T_offset update negotiation process

Step 1: The UE is configured with MCG, the first SCG, and the second SCG. The dual connection uplink power control mode is configured as dynamic mode.

Step 2: Once the UE performs SCG Switching, from the first SCG Switch to the second SCG, the SN notifies the MN of its current T-offset value.

It should be noted that the embodiment of the present application, by informing the MN of the time offset used by the terminal on the SCG after the terminal switches SCG, avoids the situation where the SCG configuration is invisible to the MN and affects the scheduling of the terminal by the MN. The embodiment of the present application can ensure the scheduling accuracy of the terminal by the MN.

As shown in FIG. 9 , the embodiment of the present application further provides a power control device 900, which is applied to a secondary node SN, including:

The second sending module is used to send the time offset used by the terminal on the current SCG to the master node MN when the terminal performs the secondary cell group SCG conversion and the uplink power control mode of the terminal is the dynamic mode.

It should be noted that the device embodiment is a device corresponding to the above-mentioned method. All implementation methods in the above-mentioned method embodiment are applicable to the device embodiment and can achieve the same technical effect, which will not be repeated here.

Preferably, an embodiment of the present application also provides a network node, which is a secondary node SN, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, each process of the power control method embodiment applied to the SN side is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

An embodiment of the present application also provides a computer-readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the power control method embodiment applied to the SN side is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

An embodiment of the present application also provides a network node, which is a secondary node SN, including a processor and a communication interface. The communication interface is used to send the time offset used by the terminal on the current SCG to the main node MN when the terminal performs a secondary cell group SCG conversion and the uplink power control mode of the terminal is a dynamic mode.

This network node embodiment corresponds to the above-mentioned SN side method embodiment. Each implementation process and implementation method of the above-mentioned method embodiment can be applied to this network node embodiment and can achieve the same technical effect.

Specifically, an embodiment of the present application further provides a network node, which is a secondary node SN. Specifically, the structure of the SN can refer to the structure of the network node in Figure 7, which will not be repeated here.

Optionally, as shown in FIG10, an embodiment of the present application further provides a communication device 1000, including a processor 1001, a memory 1002, and a program or instruction stored in the memory 1002 and executable on the processor 1001. For example, when the communication device 1000 is a terminal, the program or instruction is executed by the processor 1001 to implement the various processes of the above-mentioned power control method embodiment, and can achieve the same technical effect. When the communication device 1000 is a network node, the program or instruction is executed by the processor 1001 to implement the various processes of the above-mentioned power control method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

The terminal involved in the embodiment of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and/or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited to these terms in the embodiments of the present application.

The network node involved in the embodiments of the present application can be a base station (Base Transceiver Station, BTS) in Global System of Mobilecommunication (GSM) or Code Division Multiple Access (CDMA), or a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a base station in a future 5G network, etc., which is not limited here.

Network nodes and terminals can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.

An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned power control method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims (26)

1. A power control method, comprising: The terminal adjusts the uplink power control parameters according to the status of the serving cell group; Among them, the service cell group includes: the main cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameter is used to control the uplink transmission power of the terminal in dual connection DC mode and/or multi-connection MC mode. 2. The method according to claim 1, wherein the terminal adjusts the uplink power control parameters according to the state of the serving cell group, comprising: When the terminal requests the first configuration from the network side or receives the first configuration, sending first indication information to the master node MN; The first indication information is used to indicate one of the following: The uplink power control mode supported by the terminal is semi-static mode 1; The terminal only supports independent power control for each serving cell group; Request to configure the uplink power control mode to semi-static mode 1; Request to configure independent power control for each serving cell group; The first configuration is used to: configure the terminal to a multi-connection mode, or configure multiple SCGs for the terminal. 3. The method according to claim 2, wherein the sending of the first indication information to the master node MN comprises: When the first condition is met, sending first indication information to the MN; The first condition includes at least one of the following: The first configuration is generated by the secondary node SN; The first configuration is a SN sent to the terminal; The first configuration is invisible to the MN; The current uplink power control mode of the terminal is semi-static mode 2; The current uplink power control mode of the terminal is dynamic mode. 4. The method according to claim 3, wherein, when the first condition includes that the current uplink power control mode of the terminal is semi-static mode 2, the first condition further includes at least one of the following: The time division duplex TDD patterns of the multiple SCGs satisfy a second condition, wherein the second condition includes: the TDD patterns of the multiple SCGs are different, or the difference between the TDD patterns of the multiple SCGs is greater than or equal to a first threshold; The SCG maximum transmission power corresponding to multiple SCGs satisfies a third condition, and the third condition includes: the SCG maximum transmission power corresponding to multiple SCGs is different, or the difference in the SCG maximum transmission power corresponding to multiple SCGs is greater than or equal to a second threshold. 5. The method according to claim 3, wherein, when the first condition includes that the current uplink power control mode of the terminal is a dynamic mode, the first condition further includes at least one of the following: The time domain offsets corresponding to the multiple SCGs satisfy a fourth condition, wherein the fourth condition includes: the time domain offsets corresponding to the multiple SCGs are different, or the difference between the time domain offsets corresponding to the multiple SCGs is greater than or equal to a third threshold; The SCG maximum transmission power corresponding to multiple SCGs satisfies the fifth condition, and the fifth condition includes: the SCG maximum transmission power corresponding to multiple SCGs is different, or the difference between the SCG maximum transmission power corresponding to multiple SCGs is greater than or equal to the fourth threshold. 6. The method according to claim 2 or 3, further comprising: When the terminal receives the first release indication, sending second indication information to the MN, where the second indication information is used to update the uplink power control mode supported by the terminal or to request the MN to reconfigure the uplink power control mode; The first release indication is used to indicate at least one of the following: Release multi-connection mode configuration; Release the configuration of at least one of the SCGs. 7. The method according to any one of claims 1 to 6, characterized in that the terminal adjusts the uplink power control parameters according to the state of the serving cell group, comprising: In the case where the terminal performs SCG conversion, the terminal performs a first operation; The first operation includes at least one of the following: If the uplink power control mode before the conversion is a dynamic mode, and the terminal maintains the uplink power control mode unchanged after the conversion, the terminal determines the time offset used after the conversion by a first method; Determine the uplink power control mode according to the relationship between the frequency range of the activated SCG and the frequency range of the MCG after conversion; Sending time offset change information to MN; The first method includes at least one of the following: Determine a first time offset as the time offset used after the conversion, wherein the first time offset is the smallest or largest of the time offset before the conversion and the time offset calculated according to the SCG after the conversion; If the difference between the time offset before conversion and the time offset calculated according to the SCG after conversion is greater than or equal to a fifth threshold, determining that the time offset used after conversion is a default value; If the difference between the time offset before conversion and the time offset calculated according to the SCG after conversion is less than or equal to the sixth threshold, the time offset used after conversion is determined to be a default value. 8. The method according to claim 7, characterized in that the determining of the uplink power control mode according to the relationship between the converted activated SCG frequency range and the MCG frequency range comprises one of the following: If the frequency range of the activated SCG after conversion is different from the frequency range of the MCG, the terminal determines that the uplink power control mode used after conversion is the independent power control mode or the semi-static mode 1; If the frequency range of the activated SCG after conversion is the same as the frequency range of the MCG, the terminal performs a second operation; The second operation includes one of the following: Determining that the uplink power control mode used after the conversion is the pre-configured uplink power control mode; The terminal ignores the pre-configured uplink power control mode and determines that the uplink power control mode used after the conversion is the independent power control mode or the semi-static mode one. 9. The method according to claim 7, wherein the time offset change information includes at least one of the following: SCG conversion indication, time offset after change, change in time offset, SCG identifier before conversion and SCG identifier after conversion. 10. The method according to any one of claims 1 to 6, characterized in that the terminal adjusts the uplink power control parameters according to the state of the serving cell group, comprising: When the first transmission of the terminal is in the first state, determining that the uplink power control mode is a dynamic mode; The first transmission is MCG transmission or SCG transmission; The first state includes at least one of the following: Suspended, exception occurred, failed, deactivated. 11. The method according to claim 10, further comprising: When the first transmission of the terminal is resumed, the uplink power control mode is determined to be the uplink power control mode used before the first transmission was in the first state or the configured uplink power control mode. 12. The method according to any one of claims 1 to 6, wherein the terminal adjusts the uplink power control parameters according to the state of the serving cell group, including at least one of the following: Requesting the network side to configure or reconfigure at least one SCG so that the maximum preparation time of multiple SCGs of the terminal does not exceed the maximum preparation time of the MCG; Requesting the network side to configure or reconfigure at least one SCG so that the maximum preparation time of multiple SCGs of the terminal does not exceed a seventh threshold; Request the network side to configure or reconfigure at least one SCG so that the time division duplex patterns of multiple SCGs of the terminal are generally configured the same or have associated patterns. 13. A power control method, comprising: The master node MN sends first information to the slave node SN; The first information includes at least one of the following: When the terminal is configured in multi-connection mode and the uplink power control mode is configured in dynamic mode, the maximum time domain offset that needs to be met when the SN configures or schedules SCG transmission; The first request is used to indicate at least one of the following: the SN configures the same time division duplex TDD pattern common configuration for multiple SCGs, and the TDD pattern configurations configured by the SN for multiple SCGs have associated patterns. 14. A power control method, comprising: When the terminal performs a secondary cell group SCG conversion and the uplink power control mode of the terminal is a dynamic mode, the secondary node SN sends the time offset used by the terminal on the current SCG to the primary node MN. 15. A power control device, comprising: An adjustment module, used to adjust uplink power control parameters according to the status of the serving cell group; Among them, the service cell group includes: the main cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameter is used to control the uplink transmission power of the terminal in dual connection DC mode and/or multi-connection MC mode. 16. The device according to claim 15, characterized in that the adjustment module comprises: A first sending unit, configured to send first indication information to the master node MN when requesting a first configuration from the network side or receiving the first configuration; The first indication information is used to indicate one of the following: The uplink power control mode supported by the terminal is semi-static mode 1; The terminal only supports independent power control for each serving cell group; Request to configure the uplink power control mode to semi-static mode 1; Request to configure independent power control for each serving cell group; The first configuration is used to: configure the terminal to a multi-connection mode, or configure multiple SCGs for the terminal. 17. The device according to claim 16, wherein the first sending unit is used to: When the first condition is met, sending first indication information to the MN; The first condition includes at least one of the following: The first configuration is generated by the secondary node SN; The first configuration is a SN sent to the terminal; The first configuration is invisible to the MN; The current uplink power control mode of the terminal is semi-static mode 2; The current uplink power control mode of the terminal is dynamic mode. 18. The device according to claim 16 or 17, further comprising: a third sending module, configured to send second indication information to the MN when receiving the first release indication, wherein the second indication information is used to update the uplink power control mode supported by the terminal or to request the MN to reconfigure the uplink power control mode; The first release indication is used to indicate at least one of the following: Release multi-connection mode configuration; Release the configuration of at least one of the SCGs. 19. The device according to any one of claims 15 to 18, characterized in that the adjustment module comprises: An execution unit, configured to execute a first operation when performing an SCG conversion; The first operation includes at least one of the following: If the uplink power control mode before the conversion is a dynamic mode, and the terminal maintains the uplink power control mode unchanged after the conversion, the terminal determines the time offset used after the conversion by a first method; Determine the uplink power control mode according to the relationship between the frequency range of the activated SCG and the frequency range of the MCG after conversion; Sending time offset change information to MN; The first method includes at least one of the following: Determine a first time offset as the time offset used after the conversion, wherein the first time offset is the smallest or largest of the time offset before the conversion and the time offset calculated according to the SCG after the conversion; If the difference between the time offset before conversion and the time offset calculated according to the SCG after conversion is greater than or equal to a fifth threshold, determining that the time offset used after conversion is a default value; If the difference between the time offset before conversion and the time offset calculated according to the SCG after conversion is less than or equal to the sixth threshold, the time offset used after conversion is determined to be a default value. 20. The device according to any one of claims 15 to 18, characterized in that the adjustment module comprises: A determining unit, configured to determine that the uplink power control mode is a dynamic mode when the first transmission of the terminal is in a first state; The first transmission is MCG transmission or SCG transmission; The first state includes at least one of the following: Suspended, exception occurred, failed, deactivated. 21. The device according to any one of claims 15 to 18, characterized in that the adjustment module comprises at least one of the following: A first requesting unit, configured to request the network side to configure or reconfigure at least one SCG so that the maximum preparation time of multiple SCGs of the terminal does not exceed the maximum preparation time of the MCG; A second requesting unit, configured to request the network side to configure or reconfigure at least one SCG so that the maximum preparation time of multiple SCGs of the terminal does not exceed a seventh threshold; The third request unit is used to request the network side to configure or reconfigure at least one SCG so that the time division duplex patterns of multiple SCGs of the terminal are generally configured the same or have associated patterns. 22. A terminal, characterized in that it comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein when the program or instruction is executed by the processor, the steps of the power control method according to any one of claims 1 to 12 are implemented. 23. A power control device, comprising: A first sending module, configured to send first information to the secondary node SN; The first information includes at least one of the following: When the terminal is configured in multi-connection mode and the uplink power control mode is configured in dynamic mode, the maximum time domain offset that needs to be met when the SN configures or schedules SCG transmission; The first request is used to indicate at least one of the following: the SN configures the same time division duplex TDD pattern common configuration for multiple SCGs, and the TDD pattern configurations configured by the SN for multiple SCGs have associated patterns. 24. A power control device, comprising: The second sending module is used to send the time offset used by the terminal on the current SCG to the master node MN when the terminal performs the secondary cell group SCG conversion and the uplink power control mode of the terminal is the dynamic mode. 25. A network node, characterized in that it comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the power control method according to claim 13 or 14. 26. A readable storage medium, characterized in that the readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the power control method according to any one of claims 1 to 14 are implemented.

Images