WO2023051448A1

WO2023051448A1 - Power control method and apparatus, terminal, and network node

Info

Publication number: WO2023051448A1
Application number: PCT/CN2022/121266
Authority: WO
Inventors: 蒲文娟; 杨晓东
Original assignee: 维沃移动通信有限公司
Priority date: 2021-09-29
Filing date: 2022-09-26
Publication date: 2023-04-06
Also published as: CN115884342A

Abstract

The present application relates to the technical field of communications, and discloses a power control method and apparatus, a terminal, and a network node. The power control method of embodiments of the present application comprises: the terminal adjusts an uplink power control parameter according to a state of a serving cell group. 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 connectivity (DC) mode and/or a multi-connectivity (MC) mode.

Description

Power control method, device, terminal and network node

Cross References to Related Applications

This application claims priority to Chinese Patent Application No. 202111152657.6 filed in China on September 29, 2021, the entire contents of which are hereby incorporated by reference.

technical field

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

Background technique

In 3GPP Rel-18, the terminal may be pre-configured with multiple secondary cell groups (Secondary Cell Group, SCG), and control the user equipment (User Equipment, UE, also known as the terminal) to switch between multiple SCGs (Switching). Switching of an SCG may be transparent to the master node (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 (Secondary Node, SN ) is an independent network element, which may be independently upgraded, so that the SN may support the characteristics of multiple SCGs, while the MN is an existing (legacy) MN that has not been upgraded, and does not support the characteristics or mechanisms of multiple SCGs.

When the UE transitions from the first SCG to the second SCG, since the MN does not know about it, problems may arise in the uplink power control of the terminal in certain uplink power control modes. For example, in the dynamic mode, due to the difference in SCG configuration before and after switching, the value of the time offset (ie T-offset) used by the UE in the uplink power control mechanism may change, thus affecting the communication performance of the UE have a bad influence. 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 a loss in power consumption. If the value becomes larger, the UE will not monitor the MN's scheduling within the time period when the MN tries to schedule itself, thus losing the MN's scheduling. For another example, the semi-static mode 2 will also be affected, because the time division duplexing pattern (Time Division Duplexing pattern, TDD pattern) of the SCG will change before and after the conversion.

Contents of the invention

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

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

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

Wherein, the serving cell group includes: the primary 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 terminal in dual connectivity DC mode and/or multiple connectivity ( Uplink transmission power in Multi Connect (MC) mode.

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

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

Wherein, the serving cell group includes: the primary cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameters are used to control the terminal in the dual connection DC mode and/or the multi-connection MC Uplink transmit power in this mode.

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

The primary node MN sends the first information to the secondary node SN;

Wherein, 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 satisfied when the SN configures or schedules SCG transmission;

A first request, where the first request is used to indicate at least one of the following: the SN configures the same common TDD pattern configuration for multiple SCGs, and the TDD pattern configuration configured by the SN for multiple SCGs has an associated pattern.

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

The first sending module is configured to send the first information to the secondary node SN;

Wherein, the first information includes at least one of the following:

The 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 configuration configured by the SN for multiple SCGs has an associated pattern.

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

When the terminal performs SCG switching 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 master node MN.

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

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

In a seventh aspect, a terminal is provided, the terminal includes a processor, a memory, and a program or instruction stored in the memory and operable on the processor, when the program or instruction is executed by the processor The steps of the method described in the first aspect are realized.

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

According to the ninth aspect, a network node is provided. The network node is a master node MN, including a processor, a memory, and a program or instruction stored in the memory and operable on the processor. The program or When the instructions are executed by the processor, the steps of the method as described in the third aspect are implemented.

In a tenth aspect, a network node is provided, where the network node is a master node MN, including a processor and a communication interface, where the communication interface is used to send first information to a slave node SN;

Wherein, the first information includes at least one of the following:

In an eleventh aspect, a network node is provided, the network node is a secondary node SN, including a processor, a memory, and programs or instructions stored in the memory and operable on the processor, the program Or, when the instructions are executed by the processor, the steps of the method according to the fifth aspect are implemented.

In a twelfth aspect, a network node is provided, the network node is a secondary node SN, and includes a processor and a communication interface, wherein the communication interface is used to perform secondary cell group SCG switching on the terminal and the uplink of the terminal When the power control mode is the dynamic mode, the time offset used by the terminal on the current SCG is sent to the master node MN.

In a thirteenth aspect, a readable storage medium is provided, on which a program or an instruction is stored, and when the program or instruction is executed by a processor, the implementation as described in the first aspect, the third aspect, or the fifth aspect is achieved. steps of the method described above.

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

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

In a sixteenth aspect, a communication device is provided, wherein it is configured to execute the steps of the method described in the first aspect, the third aspect or the fifth aspect.

In the embodiment of the present application, the uplink power control parameters are adjusted according to the state of the serving cell group, so as to ensure UE uplink power performance and communication reliability.

Description of drawings

FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application is applicable;

Fig. 2 is one of the schematic flow charts of the power control method of the embodiment of the present application;

Fig. 3 is one of the module schematic diagrams of the power control device of the embodiment of the present application;

FIG. 4 is a structural block diagram of a terminal according to an embodiment of the present application;

FIG. 5 is a second schematic flow diagram of a power control method according to an embodiment of the present application;

FIG. 6 is the second block diagram of the power control device according to the embodiment of the present application;

FIG. 7 is a structural block diagram of a network node in an embodiment of the present application;

FIG. 8 is a third schematic flow diagram of a power control method according to an embodiment of the present application;

FIG. 9 is the third block diagram of the power control device according to the 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 ways

The technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and "second" distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the description and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

It is worth noting that the technology described in the embodiment of this application is not limited to the Long Term Evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-Advanced, LTE-A) system, and can also be used in other wireless communication systems, such as code 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 (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 system and radio technology, and can also be used for other systems and radio technologies. The following description describes the New Radio (New Radio, NR) system for example purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th Generation (6th Generation , 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network side device 12. Wherein, the terminal 11 can 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 palmtop computer, a netbook, a super mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR) / virtual reality (virtual reality, VR) equipment, robot, wearable device (Wearable Device) , vehicle equipment (Vehicle User Equipment, VUE), pedestrian terminals (Pedestrian User Equipment, PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.) and other terminal-side equipment, wearable Devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, game consoles wait. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network side device 12 may be a base station or a core network, where a base station may be called 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 Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, Wireless Local Area Network (WLAN) ) access point, wireless fidelity (Wireless Fidelity, WiFi) node, transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to Specific technical terms, 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 will be described as follows.

1. Basic concepts of DC/CA

Dual Connectivity (DC), that is, to provide UE with resources of two network nodes, one of which is called Master node (MN) and the other is called Secondary node (SN). At each network node, carrier aggregation technology (Carrier Aggregation, CA) can also be used, that is, a series of serving cells controlled by the node are configured for the UE, and these serving cells form a cell group (cell group). The cell group controlled by the MN is the Master Cell Group (MCG), and the cell group controlled by the SN is the Secondary Cell Group (SCG). Each cell group includes a special cell (Special Cell, SpCell) and a series of secondary cells (Secondary Cell, SCell). In the MCG, the special cell is called the Primary Cell (PCell), and in the 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, serving cells working in the same frequency range (frequency range, FR) in the MCG and SCG can share the total maximum transmit power of the UE for 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 the MCG and the uplink transmission of the SCG occur simultaneously (specifically, the uplink transmission of any serving cell in the MCG and the uplink transmission of any serving cell in the SCG occur simultaneously), the UE The uplink transmission power of the MCG or SCG needs to be adjusted 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 according to the maximum transmission 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, it considers the uplink and downlink frame structure time division duplex pattern (TDD pattern) configuration information of the SCG; the same is true for the SCG.

Dynamic power control mode: When the SCG determines the uplink power at T0, if the MCG schedule is received before the T0-T_offset time, the UE will adjust the power according to the actual transmission power of the MCG, the maximum total uplink transmission power of the UE, and the maximum transmission power of the SCG. The transmission power of the SCG is limited, and the UE does not want to receive the scheduling of the MCG during [T0-Toffset~T0]. The specific solution is: assuming 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 the 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 T0, the SCG uplink transmission power of the UE should satisfy pwr_SCG<=min{P _SCG ,P _total –MCG tx power}, Where P _total is the maximum total uplink transmission power of the UE, P _SCG 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 T0.

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

The value of T_offset is

in

is the maximum preparation time of UE in MCG,

It is the maximum preparation time of the UE in the SCG. When "Look-ahead",

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

and / or

The maximum value in ; in "Without look-ahead (Without look-ahead)",

The value of 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 (Physical Uplink Shared Channel, PUSCH) processing time of the terminal in the 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 preparation time for the channel state information (Channel State Information, CSI) of the terminal in the MCG or SCG;

The preparation time for the SPS PDSCH release when the terminal sends the PUSCH or PUCCH of the SPS PDSCH release on the MCG or SCG to be multiplexed with other PUCCHs and/or PUSCHs;

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

It is the CSI preparation time when the PUSCH or PUCCH that the terminal sends CSI on the MCG or SCG is multiplexed with other PUCCH or PUSCH.

3. Rel-17 SCG activation/deactivation mechanism

Rel-17 introduces 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 an SCG deactivation process. When these conditions change, the network side and the UE side can initiate the SCG activation process again. During the deactivation period of the SCG, the UE does not monitor the PDCCH on the SCG, and does not perform physical uplink shared channel (PUSCH), SRS transmission, etc., and the terminal can work in a relatively power-saving manner during this period. In addition, during this period, the UE may also perform SCG radio resource management (RRM) measurement and radio link management (RLM) measurement, so as to ensure that the quality of the SCG is good when the SCG is activated.

4. Multi-connection MC

In subsequent versions of 3GPP, multiple SCGs may be introduced, 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 UE throughput, mobility, link stability, etc. performance.

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

As shown in Figure 2, this embodiment of the present application provides a power control method, including:

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

It should be noted that the uplink power control parameters (that is, uplink power control parameters) in the embodiments of the present application mainly include at least one of the following: uplink power control mode (that is, uplink power control mode), UE maximum uplink transmission power configuration, UE The maximum uplink transmission power configuration of the corresponding cell group, the terminal capability 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 connectivity DC mode, and the DC mode may be NR-DC, EN-DC, NGEN-DC, NE-DC, etc.

The uplink power control parameters may be configured by the network side when the terminal is in dual connection mode, then when the terminal enters the multi-connection mode, the uplink power control parameters may also be based on the agreement or the network side Indicates that it is applied in multi-connection mode.

Another embodiment is that, when the terminal works in the multi-connection mode, the network side may configure the terminal with uplink power control parameters dedicated to the multi-connection mode. For example, the network side may configure the uplink power control mode in the multi-connection mode so that each cell group performs power control independently. For another example, when both the MCG and the two SCGs of the terminal are in the active state, the terminal executes each SCG based on the maximum uplink transmission power of the UE, the maximum uplink transmission power of the MCG, and the maximum uplink transmission power of the two SCGs configured on the network side. Each cell group independently controls uplink power.

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 called independent power control mode).

The following describes the specific implementation of the present application as follows.

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

Optionally, in this case, the implementation of step 201 is as follows:

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

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

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

A11. Configuring the terminal in a multi-connection mode;

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

A12. Configuring multiple SCGs for the terminal;

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

In this application, the phrases that the terminal is configured in a multi-connection mode and that it is configured with multiple SCGs can be interchanged when describing a specific method.

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

A21. The uplink power control mode supported by the terminal is semi-static mode 1 (ie, 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 mentioned in the embodiment of the present application can also be understood as performing independent power control on each cell group.

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

A23. Request to configure the uplink power control mode as semi-static mode 1;

A24. Request to configure independent power control of each serving cell group.

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

It should be noted that the terminal may 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 the embodiment of the present application, when the terminal requests the first configuration from the network side, or receives the first configuration, it can also judge whether the first condition is met. Only when the first condition is met, the terminal sends the MN Send the first indication information.

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

A31. The first configuration is generated by SN;

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

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 needs to send the first indication information to the MN to ensure that the MN and the terminal same understanding.

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

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

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

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

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

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

The first threshold may be the number or ratio of different uplink and downlink transmission directions in corresponding subframes or time slots or Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols in the TDD pattern of multiple SCGs.

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

It should be noted that the manner in A342 may also be applicable to the maximum transmit power of the MCG and/or the maximum transmit power of the UE.

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

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

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 the 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 Formulas

Calculated time domain offset T-offset value.

A352. The SCG maximum transmit power corresponding to multiple SCGs meets the fifth condition. The fifth condition includes: the SCG maximum transmit power corresponding to multiple SCGs is different, or the difference between the SCG maximum transmit power corresponding to multiple SCGs is greater than or equal to fourth threshold.

It should be noted that the manner in A352 may also be applicable to the maximum transmit power of the MCG and/or the maximum transmit power of the UE.

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

Optionally, the embodiment of the present application also provides a method of updating the uplink power control mode according to the state of the serving cell group of the terminal, specifically, when the terminal receives the first release indication, it sends a message to the MN Second instruction message.

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

A41. It is used to update the uplink power control mode supported by the terminal;

It should be noted that, in this case, the terminal automatically triggers an update. As long as it receives the first release instruction, the terminal automatically updates the supported uplink power control mode, and uses its own capability (referring to which uplink power control mode it supports) Mode capabilities) inform the MN.

A42. It is 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 it receives the first release instruction, the terminal sends the second instruction information to the MN, requesting the MN to reconfigure the uplink power control mode for it.

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

A51. Release the multi-connection mode configuration;

A52. Release the configuration of at least one SCG.

The following is an example of the use of this situation in practical applications as follows.

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

Specific procedures for this use case include:

Step S101, UE is configured with MCG and first SCG, and works in dual connectivity mode. The dual connection uplink power control mode is configured as dynamic mode or semi-static mode 2;

Step S102, the UE receives the configuration of the second SCG or the UE is configured in a multi-connection mode.

Step S103, when condition A is satisfied, the UE indicates to the network side 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 invisible to the MN;

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

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

Step S104 , the UE receives the reconfiguration message, and its dual connectivity 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 the semi-static mode 1. If the UE receives the second SCG release indication or the multi-connection release indication from the network side, the UE may update related capabilities of the uplink power control mode to the network side.

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

Optionally, in this case, the implementation of step 201 is as follows:

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

Wherein, the first operation includes at least one of the following:

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

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

B111. Determine the first time offset as the time offset used after conversion, the first time offset is the time offset before conversion and the time offset calculated according to the converted SCG The one with the smallest value or the largest value among the quantities;

B112. If 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 fifth threshold, determine that the time offset used after conversion is the default value;

For example, after subtracting the one with the smaller time offset from the one with the larger 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 before conversion and after conversion The offset is quite different. At this time, the time offset before conversion or the time offset after conversion can no longer be used, 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 conversion, if the difference (positive value or negative value) is greater than or equal to the fifth threshold, it indicates that the difference between before conversion and conversion The post-conversion time offset is quite different. At this time, the pre-conversion time offset or the post-conversion time offset can no longer be used, 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 converted SCG is less than or equal to the sixth threshold, determine that the time offset used after conversion is a default value.

For example, after subtracting the one with the larger time offset from the one with the smaller 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 before conversion and after conversion The offset is quite different. At this time, the time offset before conversion or the time offset after conversion can no longer be used, but a preset default value is used. For another example, after the time offset before conversion is subtracted from the time offset calculated according to the SCG after conversion, if the difference (negative or positive) is less than or equal to the sixth threshold, it indicates that the difference between before conversion and conversion is The time offset after conversion is quite different. At this time, the time offset before conversion or the time offset after conversion can no longer be used, but a preset default value is used.

What needs to be explained here is 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 determine the conversion The time offset used after is the default.

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

Specific procedures for this use case include:

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

Wherein, 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 executes SCG Switching, for example, from the first SCG Switch to the second SCG, the terminal determines the T_offset adopted after the Switch 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, then it is determined that the time offset used after conversion is T_offset1.

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

B12. Determine the uplink power control mode according to the relationship between the converted frequency range of the activated SCG and the frequency range of the MCG;

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

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

Example 3: The uplink power control mode triggered by the SCG Switch is changed from the same FR to a different FR

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

Step S302, the terminal works on the MCG and the first SCG, and performs uplink power control in a dynamic mode;

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 of each cell group or uses semi-static mode 1 for uplink Power Control.

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

Specifically, the second operation includes one of the following:

B1221. Determine that the uplink power control mode used after conversion is the pre-configured uplink power control mode;

It should be noted that when the terminal is configured for dual connectivity, it can be configured in the pre-configured uplink power control mode under dual connectivity. The uplink power control mode used before the conversion is inconsistent with the pre-configured uplink power control mode. In this case, because the converted frequency range of the activated SCG 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 conversion is independent power control mode or 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 conversion.

Example 4: The uplink power control mode triggered by SCG Switch is changed from different FR to the same FR

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

Step S402, the terminal works on 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-configuration In the uplink power control mode, continue to perform independent power control.

B13. Send time offset change information to the MN;

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

An SCG conversion indication, a changed time offset, or a change in the time offset, an SCG identifier before conversion, and an SCG identifier after conversion.

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

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

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

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

Optionally, in this case, the implementation of step 201 is as follows:

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

Wherein, the first transmission is MCG transmission or SCG transmission;

The first state includes at least one of the following:

Hangs, throws an exception, fails, is deactivated.

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

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, the MCG has a wireless link failure;

In step S603, the UE initiates an MCG failure information process (that is, reports MCG failure through the SCG). Once the process is initiated, the UE suspends the transmission of the MCG and sends an MCG failure information message through the SCG;

Step S604, once the UE suspends the MCG transmission, the UE regards its uplink power control mode as a dynamic mode.

Step S605 , once the UE receives the MCG synchronous reconfiguration message or once the MCG transmission is resumed, the UE considers that its uplink power control mode is restored to the 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 (that is, power hard division);

Step S702, once the SCG is deactivated, the UE regards its uplink power control mode as a dynamic mode.

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

Situation 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 configuration or reconfiguration of at least one SCG from the network side, so that the maximum preparation time of multiple SCGs of the terminal does not exceed the maximum preparation time of the MCG;

It should be noted that the maximum preparation time of the SCG refers to the maximum preparation time of the UE in the SCG

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

If the maximum preparation time of multiple SCGs of the terminal is 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 switching operation will not change the time offset.

C12. Request to 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 stipulated in the protocol, or may be configured or pre-configured on the network side.

C13. Request configuration or reconfiguration of at least one SCG from the network side, so that the time division duplex patterns of multiple SCGs of the terminal are generally configured the same or have an associated pattern.

It should be noted that the network side mentioned in this case may refer to the MN or the 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 the at least one SCG configured by the network side.

It should be noted that, in the embodiment of the present application, in the dual connection or multi-connection mode, the terminal can more flexibly apply a reasonable uplink function according to the actual situation (for example, an SCG Switch occurs, or the MCG wireless link fails, or the SCG is deactivated). control mode, 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 may 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 executed by the power control device is taken as an example to describe the power control device provided in the embodiment of the present application.

As shown in Figure 3, the 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 state of the serving cell group;

Optionally, the adjustment module 301 includes:

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

Wherein, the first indication information is used to indicate the following item:

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 as semi-static mode 1;

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

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

Optionally, the first sending unit is configured to:

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

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

The first configuration is generated for the secondary node SN;

The first configuration is sent by the SN 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 further includes at least one of the following:

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

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 between the SCG maximum transmission power corresponding to multiple SCGs is greater than or equal to 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 further includes at least one of the following:

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

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

Optionally, the device also includes:

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

Release the multi-connection mode configuration;

releasing the configuration of at least one of said SCGs.

Optionally, the adjustment module 301 includes:

an execution unit, configured to perform a first operation in the case of performing SCG conversion;

Wherein, the first operation includes at least one of the following:

If the uplink power control mode is a dynamic mode before the conversion, and the terminal keeps the uplink power control mode unchanged after the conversion, the terminal determines the time offset used after the conversion in a first manner;

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

Send time offset change information to the MN;

The first method includes at least one of the following:

Determining the first time offset as the time offset used after the conversion, the first time offset being the time offset before the conversion and the time offset calculated according to the converted SCG The one with the smallest value or the largest value;

If 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 fifth threshold, determine 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 converted SCG is less than or equal to the sixth threshold, determine that the time offset used after conversion is a default value.

Optionally, the implementation of determining the uplink power control mode according to the relationship between the converted frequency range of the activated SCG and the frequency range of the MCG includes the following item:

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

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

Wherein, the second operation includes one of the following:

Determine that the uplink power control mode used after 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 conversion is the independent power control mode or the semi-static mode one.

SCG conversion indication, time offset after change, change of 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 the first state;

Wherein, the first transmission is MCG transmission or SCG transmission;

The first state includes at least one of the following:

Hangs, throws an exception, fails, is deactivated.

Optionally, the device also includes:

The determining module is configured to determine 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 when the first transmission resumes.

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

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

The second request unit is configured to request configuration or reconfiguration of at least one SCG from the network side, so that the maximum preparation time of multiple SCGs of the terminal does not exceed the seventh threshold;

The third requesting unit is configured to request configuration or reconfiguration of at least one SCG from the network side, so that the TDD patterns of multiple SCGs of the terminal are generally configured the same or have associated patterns.

It should be noted that this device embodiment is a device corresponding to the above-mentioned method, and all the implementation modes in the above-mentioned method embodiment are applicable to this device embodiment, and can also achieve the same technical effect, so details are not repeated here.

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

The power control device provided by the embodiment of the present application can realize each process realized by the method embodiment in FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.

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

This 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 this terminal embodiment, and can achieve the same technical effect. Specifically, FIG. 4 is a schematic diagram of a hardware structure of a terminal implementing an 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 a processor 410, etc. at least some of the components.

Those skilled in the art can understand that the terminal 400 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 410 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions. The terminal structure shown in FIG. 4 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated 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 is used for the image capture device ( Such as the image data of the still picture or video obtained by the camera) for processing. 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, or the like. 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, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 401 receives the downlink data from the network side device, and processes it to the processor 410; in addition, sends the uplink data 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, and the like.

The memory 409 can be used to store software programs or instructions as well as various data. The memory 409 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 409 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, 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 the operating system, user interface, application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 410 .

Wherein, the processor 410 is used to implement:

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

The terminal in the embodiment of the present application adjusts uplink power control parameters according to the state of the serving cell group, so as to ensure UE uplink power performance and communication reliability.

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

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

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

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

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

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

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

The first configuration is generated for the secondary node SN;

The first configuration is sent by the SN 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, the radio frequency unit 401 is also used to implement:

When the first release indication is received, send 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;

Release the multi-connection mode configuration;

releasing the configuration of at least one of said SCGs.

Optionally, the processor 410 is used to implement:

When the terminal performs SCG conversion, perform a first operation;

Wherein, the first operation includes at least one of the following:

Send time offset change information to the MN;

The first method includes at least one of the following:

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

Wherein, the second operation includes one of the following:

Optionally, the processor 410 is configured to implement:

Wherein, the first transmission is MCG transmission or SCG transmission;

The first state includes at least one of the following:

Hangs, throws an exception, fails, is deactivated.

Optionally, the processor 410 is also used to implement:

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

Optionally, the radio frequency unit 401 is also 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 the multiple SCGs of the terminal does not exceed the seventh threshold;

Requesting configuration or reconfiguration of at least one SCG from the network side, so that the time division duplex patterns of multiple SCGs of the terminal are commonly configured the same or have associated patterns.

Preferably, the embodiment of the present application further provides a terminal, including a processor, a memory, and a program or instruction stored in the memory and operable on the processor, and the power control method is implemented when the program or instruction is executed by the processor The various processes of the embodiment can achieve the same technical effect, so in order to avoid repetition, details are not repeated here.

The embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, each process of the power control method embodiment is realized, and the same technical effect can be achieved , to avoid repetition, it will not be repeated here. Wherein, the computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.

As shown in Figure 5, the embodiment of the present application also provides a power control method, including:

Step 501, the primary node MN sends first information to the secondary node SN;

Wherein, the first information includes at least one of the following:

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

It should be noted that the maximum time domain offset refers to the maximum preparation time of the UE in the SCG

Controlled by MN

The terminal is consistent with the T_Offset calculated by the MN, so as to ensure the accuracy of the scheduling of the terminal by the MN.

D12. The 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 configuration configured by the SN for multiple SCGs has an associated pattern;

It should be noted that the MN controls the SCG configuration of the SN so that the MN clearly knows how the SN configures the SCG, avoiding the situation that the SCG configuration is invisible to the MN, and thus ensuring the accuracy of the MN's scheduling of terminals.

Example 8. Send configuration on the network side to ensure that the configuration parameters meet the requirements

In dynamic power control mode, the parameter T_offset value is

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

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

The limits given by the MN should not be exceeded. After the SN configures the SCG, the actual

sent to the MN, and the MN knows

Thus, the MN can calculate T_offset. Based on this, the network side can adopt the following methods to solve the problem:

If the MN configures the UE's uplink power control mode as dynamic mode, 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 of is less than or equal to

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

Similarly, if the MN configures the UE's uplink power control mode as 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 be the same or have associated patterns.

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

It should be noted that in the embodiment of the present application, the MN controls the SCG configuration of the SN to avoid the situation that the scheduling of the terminal by the MN is affected because the SCG configuration is invisible to the MN. The embodiment of the present application can ensure the accuracy of the scheduling of the terminal by the MN.

As shown in FIG. 6, the embodiment of the present application also provides a power control device 600, including:

Wherein, the first information includes at least one of the following:

This device embodiment is a device corresponding to the above-mentioned method, and all the implementation modes in the above-mentioned method embodiment are applicable to this device embodiment, and can also achieve the same technical effect, and will not be repeated here.

Preferably, the embodiment of the present application also provides a network node, the network node is a master node MN, including a processor, a memory, a program or an instruction stored in the memory and operable on the processor, the program or When the instructions are executed by the processor, each process of the embodiment of the power control method applied on the MN side can be implemented, and the same technical effect can be achieved, so to avoid repetition, details are not repeated here.

The embodiment of the present application also provides a readable storage medium, where a program or an instruction is stored on the computer-readable storage medium, and when the program or instruction is executed by the processor, each process of the embodiment of the power control method applied to the MN side is implemented, and The same technical effect can be achieved, so in order to avoid repetition, details will not be repeated here.

Wherein, the computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.

The embodiment of the present application also provides a network node, where the network node is a master node MN, including a processor and a communication interface, and the communication interface is used to send the first information to the slave node SN;

Wherein, the first information includes at least one of the following:

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

Specifically, the embodiment of the present application also provides a network node, where the network node is a master node MN. As shown in FIG. 7 , 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 , and the radio frequency device 702 processes the received information and sends it out through the antenna 701 .

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

The baseband device 703, for example, may include at least one baseband board, and the baseband board is provided with a plurality of chips, as shown in FIG. The network device operations shown in the above method embodiments.

The baseband device 703 may also include a network interface 706 for exchanging information with the radio frequency device 702, such as a common public radio interface (CPRI for short).

Specifically, the network device in the embodiment of the present invention also includes: instructions or programs stored in the memory 705 and operable on the processor 704, and the processor 704 calls the instructions or programs in the memory 705 to execute the modules shown in FIG. 6 method, and achieve the same technical effect, in order to avoid repetition, it is not repeated here.

As shown in Figure 8, the embodiment of the present application also provides a power control method, including:

Step 801, when the terminal performs SCG switching 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 master node MN.

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

Step 1: UE is configured with MCG, first SCG and 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, in the embodiment of the present application, when the terminal switches the SCG, the MN is notified of the time offset used by the terminal on the converted SCG, so as to avoid the influence of the MN on the terminal due to the fact that the SCG configuration is invisible to the MN. In the event of scheduling, the embodiment of the present application can ensure the accuracy of the MN's scheduling of the terminal.

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

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

The embodiment of the present application also provides a readable storage medium, where a program or an instruction is stored on the computer-readable storage medium, and when the program or instruction is executed by the processor, each process of the embodiment of the power control method applied to the SN side is implemented, and The same technical effect can be achieved, so in order to avoid repetition, details will not be repeated here.

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

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

Specifically, the embodiment of the present application also provides a network node, and the network node is a secondary node SN. Specifically, for the structure of the SN, refer to the structure of the network node in FIG. 7 , which will not be repeated here.

Optionally, as shown in FIG. 10 , this embodiment of the present application further provides a communication device 1000, including a processor 1001, a memory 1002, and programs or instructions stored in the memory 1002 and operable on the processor 1001, For example, when the communication device 1000 is a terminal, when the program or instruction is executed by the processor 1001, each process of the foregoing power control method embodiment can be realized, and the same technical effect can be achieved. When the communication device 1000 is a network node, when the program or instruction is executed by the processor 1001, each process of the power control method embodiment described above can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

The terminal involved in this embodiment of the present application may be a device that provides voice and/or data connectivity to users, 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 equipment may be different. For example, in a 5G system, the terminal equipment may be called User Equipment (User Equipment, UE). The wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the radio access network (Radio Access Network, RAN), and the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network. For example, Personal Communication Service (PCS) phone, cordless phone, Session Initiated Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant, PDA) and other devices. Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , remote terminal, access terminal, user terminal, user agent, and user device are not limited in this embodiment of the present application.

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

One or more antennas can be used between the network nodes and the terminals for Multi Input Multi Output (MIMO) transmission, and the MIMO transmission can be Single User MIMO (Single User MIMO, SU-MIMO) or Multi-User MIMO ( Multiple User MIMO, MU-MIMO). According to the shape and number of root antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or diversity transmission, precoding transmission, or beamforming transmission, etc.

The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above power control method embodiment Each process can achieve the same technical effect, so in order to avoid repetition, it will not be repeated here.

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

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that 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. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

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

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims

A power control method comprising:

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

Wherein, the serving cell group includes: the primary cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameters are used to control the terminal in the dual connection DC mode and/or the multi-connection MC Uplink transmit power in this mode.
The method according to claim 1, wherein the terminal adjusts uplink power control parameters according to the state of the serving cell group, including:

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

Wherein, the first indication information is used to indicate the following item:

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 as semi-static mode 1;

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

The first configuration is used for: configuring the terminal in a multi-connection mode, or configuring multiple SCGs for the terminal.
The method according to claim 2, wherein the sending the first indication information to the master node MN comprises:

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

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

The first configuration is generated for the secondary node SN;

The first configuration is sent by the SN 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.
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 multiple SCGs meet a second condition, and the second condition includes: the TDD patterns of multiple SCGs are different, or the difference between the TDD patterns of multiple SCGs is greater than or equal to a first threshold;

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 between the SCG maximum transmission power corresponding to multiple SCGs is greater than or equal to second threshold.
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 multiple SCGs meet the fourth condition, and the fourth condition includes: the time domain offsets corresponding to multiple SCGs are different, or the difference between the time domain offsets corresponding to multiple SCGs is greater than or equal to the third threshold;

The SCG maximum transmit power corresponding to multiple SCGs satisfies the fifth condition, and the fifth condition includes: the SCG maximum transmit power corresponding to multiple SCGs is different, or the difference between the SCG maximum transmit power corresponding to multiple SCGs is greater than or equal to the fourth threshold.
The method according to claim 2 or 3, further comprising:

When the terminal receives the first release indication, send 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 MN reconfiguration The uplink power control mode;

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

Release the multi-connection mode configuration;

releasing the configuration of at least one of said SCGs.
The method according to any one of claims 1 to 6, wherein the terminal adjusts uplink power control parameters according to the state of the serving cell group, including:

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

Wherein, the first operation includes at least one of the following:

If the uplink power control mode is a dynamic mode before the conversion, and the terminal keeps the uplink power control mode unchanged after the conversion, the terminal determines the time offset used after the conversion in a first manner;

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

Send time offset change information to the MN;

The first method includes at least one of the following:

Determining the first time offset as the time offset used after the conversion, the first time offset being the time offset before the conversion and the time offset calculated according to the converted SCG The one with the smallest value or the largest value;

If 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 fifth threshold, determine 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 converted SCG is less than or equal to the sixth threshold, determine that the time offset used after conversion is a default value.
The method according to claim 7, wherein said determining the uplink power control mode according to the relationship between the converted frequency range of the activated SCG and the frequency range of the MCG includes the following items:

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

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

Wherein, the second operation includes one of the following:

Determine that the uplink power control mode used after 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 conversion is the independent power control mode or the semi-static mode one.
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 of time offset, SCG identifier before conversion, and SCG identifier after conversion.
The method according to any one of claims 1 to 6, wherein the terminal adjusts uplink power control parameters according to the state of the serving cell group, including:

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

Wherein, the first transmission is MCG transmission or SCG transmission;

The first state includes at least one of the following:

Hangs, throws an exception, fails, is deactivated.
The method according to claim 10, further comprising:

When the first transmission of the terminal resumes, the uplink power control mode is determined to be the uplink power control mode used before the first transmission is in the first state or the configured uplink power control mode.
The method according to any one of claims 1 to 6, wherein the terminal adjusts 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 the multiple SCGs of the terminal does not exceed the seventh threshold;

Requesting configuration or reconfiguration of at least one SCG from the network side, so that the time division duplex patterns of multiple SCGs of the terminal are generally configured the same or have an associated pattern.
A power control method comprising:

The primary node MN sends the first information to the secondary node SN;

Wherein, 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 satisfied when the SN configures or schedules SCG transmission;

A first request, where the first request is used to indicate at least one of the following: the SN configures the same common TDD pattern configuration for multiple SCGs, and the TDD pattern configuration configured by the SN for multiple SCGs has an associated pattern.
A power control method comprising:

When the terminal performs SCG switching 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 master node MN.
A power control device comprising:

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

Wherein, the serving cell group includes: the primary cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameters are used to control the terminal in the dual connection DC mode and/or the multi-connection MC Uplink transmit power in this mode.
The device according to claim 15, wherein the adjustment module comprises:

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

Wherein, the first indication information is used to indicate the following item:

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 as semi-static mode 1;

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

The first configuration is used for: configuring the terminal in a multi-connection mode, or configuring multiple SCGs for the terminal.
The device according to claim 16, wherein the first sending unit is configured to:

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

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

The first configuration is generated for the secondary node SN;

The first configuration is sent by the SN 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.
The device according to claim 16 or 17, further comprising:

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

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

Release the multi-connection mode configuration;

releasing the configuration of at least one of said SCGs.
The device according to any one of claims 15 to 18, wherein the adjustment module comprises:

an execution unit, configured to perform a first operation in the case of performing SCG conversion;

Wherein, the first operation includes at least one of the following:

If the uplink power control mode is a dynamic mode before the conversion, and the terminal keeps the uplink power control mode unchanged after the conversion, the terminal determines the time offset used after the conversion in a first manner;

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

Send time offset change information to the MN;

The first method includes at least one of the following:

Determining the first time offset as the time offset used after the conversion, the first time offset being the time offset before the conversion and the time offset calculated according to the converted SCG The one with the smallest value or the largest value;

If 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 fifth threshold, determine 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 converted SCG is less than or equal to the sixth threshold, determine that the time offset used after conversion is a default value.
The device according to any one of claims 15 to 18, wherein 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 the first state;

Wherein, the first transmission is MCG transmission or SCG transmission;

The first state includes at least one of the following:

Hangs, throws an exception, fails, is deactivated.
The device according to any one of claims 15 to 18, wherein the adjustment module comprises at least one of the following:

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

The second request unit is configured to request configuration or reconfiguration of at least one SCG from the network side, so that the maximum preparation time of multiple SCGs of the terminal does not exceed the seventh threshold;

The third requesting unit is configured to request configuration or reconfiguration of at least one SCG from the network side, so that the TDD patterns of multiple SCGs of the terminal are generally configured the same or have associated patterns.
A terminal, comprising a processor, a memory, and a program or instruction stored in the memory and operable on the processor, when the program or instruction is executed by the processor, any of claims 1 to 12 can be realized. A step of the described power control method.
A power control device comprising:

The first sending module is configured to send the first information to the secondary node SN;

Wherein, 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 satisfied when the SN configures or schedules SCG transmission;

A first request, where the first request is used to indicate at least one of the following: the SN configures the same common TDD pattern configuration for multiple SCGs, and the TDD pattern configuration configured by the SN for multiple SCGs has an associated pattern.
A power control device comprising:

The second sending module is configured to send the time offset used by the terminal on the current SCG to the master node MN when the terminal performs SCG switching and the uplink power control mode of the terminal is a dynamic mode.
A network node, comprising a processor, a memory, and a program or instruction stored on the memory and operable on the processor, when the program or instruction is executed by the processor, claim 13 or 14 is achieved The steps of the power control method.
A readable storage medium, storing programs or instructions on the readable storage medium, and implementing the steps of the power control method according to any one of claims 1 to 14 when the programs or instructions are executed by a processor.
A chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run programs or instructions, and realize the power control according to any one of claims 1 to 14 method steps.
A computer program product, the computer program product is stored in a non-transitory storage medium, and the computer program product is executed by at least one processor to implement the power control method according to any one of claims 1 to 14 A step of.
A communication device, wherein it is configured to execute the steps of the power control method according to any one of claims 1 to 14.