CN115884342A

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

Info

Publication number: CN115884342A
Application number: CN202111152657.6A
Authority: CN
Inventors: 蒲文娟; 杨晓东
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2023-03-31
Also published as: WO2023051448A1

Abstract

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

Description

Power control method, device, terminal and network node

Technical Field

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

Background

A terminal in 3GPP Rel-18 may be preconfigured with multiple Secondary Cell Groups (SCGs), and control a User Equipment (UE, also referred to as a terminal) to perform Switching (Switching) between multiple SCGs, where Switching of multiple SCGs may be transparent to a primary node (MN): on one hand, excessive interface signaling interaction between network elements cannot be generated due to frequent SCG Switching, and on the other hand, the MN and the Secondary Node (SN) are independent network elements and can be independently upgraded, so that the SN can support the characteristics of multiple SCGs, while the MN is an existing (legacy) MN which is not upgraded and does not support the characteristics or mechanisms of multiple SCGs.

When the UE switches from the first SCG to the second SCG, the uplink power control of the terminal in some uplink power control modes may be problematic because the MN is not aware of it. For example, in dynamic (dynamic) mode, due to the difference of the SCG configuration before and after the transition, the value of the time offset (i.e., T-offset) used by the UE in the uplink power control mechanism may change, thereby adversely affecting the communication performance of the UE. If the value becomes small, the UE will monitor the scheduling of the MN in a time period in which the MN does not attempt to schedule itself, resulting in a loss in power consumption. If the value becomes larger, the UE will not monitor the scheduling of the MN in the time period in which the MN tries to schedule itself, thereby losing the scheduling of the MN. For another example, the semi-static mode two is also affected because the time division duplex pattern (TDD pattern) of the SCG changes before and after the transition.

Disclosure of Invention

The embodiment of the application provides a power control method, a power control device, a terminal and a network node, which can solve the problem that the existing implementation mode can influence the uplink power performance of UE and the communication reliability under the condition that the terminal performs access cell group change.

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

the terminal adjusts the uplink power control parameter according to the state of the service cell group;

wherein the serving cell group comprises: a master cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameter is used for controlling the uplink transmission power of the terminal in a dual-connection DC mode and/or a multi-connection MC mode.

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

the adjusting module is used for adjusting the uplink power control parameters according to the state of the service cell group;

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

the main node MN sends first information to the auxiliary node SN;

wherein the first information comprises at least one of:

under the condition that the terminal is configured to be in a multi-connection mode and the uplink power control mode is configured to be in a dynamic mode, configuring or scheduling the maximum time domain offset required to be met by the SN;

a first request indicating at least one of: the SN configures the same TDD pattern common configuration for multiple SCGs, and the TDD pattern configuration with the SN configured for multiple SCGs has an associated pattern.

In a fourth aspect, there is provided a power control apparatus comprising:

the first sending module is used for sending first information to the auxiliary node SN;

wherein the first information comprises at least one of:

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

and under the condition that the terminal executes SCG conversion of the auxiliary cell group and the uplink power control mode of the terminal is a dynamic mode, the auxiliary node SN sends the time offset used by the terminal on the current SCG to the main node MN.

In a sixth aspect, there is provided a power control apparatus comprising:

and the second sending module is used for sending the time offset used by the terminal on the current SCG to the main node MN under the condition that the terminal executes SCG conversion of the auxiliary cell group and the uplink power control mode of the terminal is a dynamic mode.

In a seventh aspect, a terminal is provided, the terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the first aspect.

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

In a ninth aspect, there is provided a network node, being a master node MN, comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, which program or instructions, when executed by the processor, implement the steps of the method according to the third aspect.

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

wherein the first information comprises at least one of:

In an eleventh aspect, a network node is provided, which is a secondary node SN, comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the method according to the fifth aspect.

In a twelfth aspect, a network node is provided, where the network node is an auxiliary node SN, and includes a processor and a communication interface, where the communication interface is configured to send, to a master node MN, a time offset used by a terminal on a current SCG when the terminal performs SCG conversion and an uplink power control mode of the terminal is a dynamic mode.

In a thirteenth aspect, there is provided a readable storage medium on which a program or instructions are stored, which program or instructions, when executed by a processor, implement the steps of the method according to the first, third or fifth aspect.

In a fourteenth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the steps of the method according to the first, third or fifth aspect.

In a fifteenth aspect, there is provided a computer program/program product stored in a non-transitory storage medium, the program/program product being executable by at least one processor to implement the steps of the method as described in the first, third or fifth aspect.

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

Drawings

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

FIG. 2 is a flow chart of a power control method according to an embodiment of the present application;

FIG. 3 is a block diagram of a power control apparatus according to an embodiment of the present application;

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

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

fig. 6 is a second block diagram of a power control apparatus according to an embodiment of the present application;

fig. 7 is a block diagram of a network node according to an embodiment of the present application;

FIG. 8 is a third flowchart illustrating a power control method according to an embodiment of the present application;

fig. 9 is a third block diagram of a power control apparatus according to an embodiment of the present application;

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

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of protection of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. 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 other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" used herein generally refer to a class and do not limit the number of objects, for example, a first object can be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), orthogonal Frequency Division Multiple Access (OFDMA), single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, but the techniques may also be applied to applications other than NR system applications, such as 6th generation,6g communication systems.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a terminal side Device called as a notebook Computer, a Personal Digital Assistant (PDA), a palm Computer, a netbook, an ultra-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (Wearable Device), a vehicle mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with wireless communication function, such as a refrigerator, a television, a washing machine or furniture, etc.), and the Wearable Device includes: smart watch, smart bracelet, smart earphone, smart glasses, smart jewelry (smart bracelet, smart ring, smart necklace, smart anklet, etc.), smart wristband, smart garment, game console, etc. 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 the Base Station may be referred to as a node B, an enodeb, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home enodeb, a WLAN access Point, a WiFi node, a Transmit Receive 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 a specific technical vocabulary, and 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 below.

1. DC/CA basic concept

Dual Connectivity (DC), i.e. providing the UE with resources of two network nodes, one of which is called a Master Node (MN) and the other is called a Secondary Node (SN). At each network node, carrier aggregation technology (CA) may also be used, i.e. the UE is configured with a series of serving cells controlled by the node, which constitute a cell group (cell group). The MN controlled Cell Group is the Master Cell Group (MCG), and the SN controlled is the Secondary Cell Group (SCG). Each Cell group includes a Special Cell (SpCell) and a series of Secondary cells (scells). In the MCG, the special Cell is called a Primary Cell (PCell), and in the SCG, the special Cell is called a Primary Secondary Cell (PSCell).

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

The uplink power sharing of NR-DC, which may also be referred to as uplink power control, is that serving cells operating in the same Frequency Range (FR) in the MCG and the SCG may share the total maximum transmit power of the UE to perform joint power allocation, where the FR includes FR1 and FR2. Assuming that the maximum total transmission power (Ptotal) of the UE is constant, when the MCG uplink transmission and the SCG uplink transmission 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 needs to adjust the uplink transmission power of the MCG or the SCG to ensure that the sum of the two does not exceed the maximum uplink total transmission power of the UE.

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

semi-static power control mode 1 (also referred to as semi-static mode 1): the MCG and the SCG respectively carry out power control according to the maximum transmitting power of each cell group;

semi-static power control mode 2 (also referred to as semi-static mode 2): when the MCG determines the uplink power, the configuration information of a time division duplex pattern (TDD pattern) of an uplink and downlink frame structure of the SCG is considered; SCG works in the same way.

Dynamic power control mode: when the SCG determines the uplink power at time T0, if the scheduling to the MCG is received before time T0-T _ offset, the UE limits the transmission power of the SCG according to the actual transmission power of the MCG, the maximum uplink total transmission power of the UE, and the maximum transmission power of the SCG, and the UE does not want to receive the scheduling of the MCG during T0-Toffset to T0. The specific scheme is as follows: suppose that the UE starts SCG uplink transmission at time T0, and its SCG uplink transmission power is denoted pwr _ SCG. The UE calculates SCG uplink transmission power pwr _ SCG at time T0 according to the following method:

before time T0-T _ offset, the UE listens to the Physical Downlink Control Channel (PDCCH) of the MCG:

if the PDCCH triggers/indicates that one of the SCG uplink transmissions of the UE has an overlapped MCG uplink transmission with the SCG uplink transmission at the time T0, the SCG uplink transmission power of the UE should satisfy pwr _ SCG<＝min{P _SCG ,P _total -MCG tx power }, where P is _total Is the maximum uplink total transmission power, P, of the UE _SCG The maximum uplink transmission power of the SCG, MCG tx power is the uplink transmission power of the MCG;

otherwise, pwr _ SCG<＝P _total 。

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

Wherein, T _ offset is a time offset used by the UE when the uplink power control mode is the dynamic mode, and the value of T _ offset is described as follows:

t _ offset takes on a value of

Wherein->

For the maximum preparation time of the UE in the MCG, <' >>

The maximum preparation time for the UE in the SCG. In "Look-ahead",

is taken as T _proc,2 ,T _proc,CSI ,

And/or->

Maximum value of (2); when "look-ahead not used", the based on the status of the blood pressure sensor is selected>

Is taken as T _proc,2 ,T _proc,CSI ,

And/or->

Maximum value of (2).

Explanation of the above parameters:

T _proc,2 processing time for a terminal in a Physical Uplink Shared Channel (PUSCH) of an MCG or an SCG;

the processing time may be understood as preparation time, processing time, preparation delay, processing delay, or the like.

T _proc,CSI Preparing time for Channel State Information (CSI) of the terminal in the MCG or SCG;

the terminal sends SPS PDSCH release preparation time when the PUSCH or PUCCH which is released by the SPS PDSCH on MCG or SCG is multiplexed with other PUCCH and/or PUSCH;

preparing time for a PUSCH of a terminal when the PUSCH of MCG or SCG is multiplexed with a PUCCH and/or other PUSCHs; />

And preparing time for the terminal to send CSI on the MCG or SCG, or CSI preparation time when the PUSCH or PUCCH which is used for sending CSI is multiplexed with other PUCCHs or PUSCHs.

3. Rel-17 SCG activation/deactivation mechanism

Rel-17 introduced the SCG activation/deactivation mechanism. When there is no data to be transmitted on the SCG or the UE is currently overheated or for the purpose of power saving, the network side and the UE side may initiate an SCG deactivation procedure. When these conditions change, the network side and the UE side can initiate the SCG activation procedure again. During the SCG deactivation period, the UE does not monitor the PDCCH on the SCG, and there is no Physical Uplink Shared Channel (PUSCH), SRS transmission, and other behaviors, and the terminal may operate in a power-saving manner during this period. Furthermore, during this time, the UE may also perform Radio Resource Management (RRM) measurements, radio Link Management (RLM) measurements of the SCG, in order to try to ensure that the SCG is of good quality when activated.

4. Multi-connection MC

In subsequent releases of 3GPP, multiple SCGs may be introduced, that is, the network side configures an MCG and more than one SCG for the terminal, and the performance in terms of throughput, mobility, link stability, etc. of the UE is improved by using an aggregation technique or an SCG conversion technique.

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

As shown in fig. 2, an embodiment of the present application provides a power control method, including:

step 201, the terminal adjusts the uplink power control parameter according to the state of the service cell group;

It should be noted that the uplink power control parameter (i.e., the uplink power control parameter) in the embodiment of the present application mainly includes at least one of the following: an uplink power control mode (i.e., an uplink power control mode), a maximum uplink transmit power configuration of the UE in a corresponding cell group, a terminal capability related to uplink power control, and a time offset (T _ offset) used by the UE in a dynamic mode.

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

The uplink power control parameter may be configured by the network side when the terminal enters the dual connectivity mode, and then the uplink power control parameter may also be applied to the multi connectivity mode based on protocol agreement or an indication of the network side when the terminal enters the multi connectivity mode.

Another embodiment is that, when the terminal operates 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 to perform power control independently for each cell group. For another example, when the MCG and 2 SCGs of the terminal are both in an active state, the terminal performs uplink power control independently for each cell group based on the maximum uplink transmission power of the UE, the maximum uplink transmission power of the MCG, and the respective maximum uplink transmission powers on the two SCGs, which are configured on the network side.

It should be noted that the uplink power control mode in this embodiment includes three modes in uplink power sharing and independent power control (may also be referred to as an independent power control mode) for each cell group.

The following describes a specific embodiment of the present application.

In case one, the terminal sends an indication to the Master Node (MN) based on the first configuration.

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

under the condition that the terminal requests a first configuration from a network side or receives the first configuration, first indication information is sent to a main node MN;

it should be noted that, the network side mentioned herein may refer to an MN, and may also refer to an auxiliary node (SN), that is, the terminal may request the first configuration from the MN, and may also request the first configuration from the SN; optionally, the terminal may receive the first configuration from the MN, and may also receive the first configuration from the SN.

Optionally, the first configuration is to indicate one of:

a11, configuring the terminal into a multi-connection mode;

this is the case when the terminal is configured with at least one SCG, which puts the terminal in a multi-connection mode.

A12, configuring a plurality of 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 a time; alternatively, the first configuration is used to additionally configure other SCGs for the terminal in case that the terminal has been configured with one SCG.

In the present application, the expressions that the terminal is configured in the multi-connection mode and configured with multiple SCGs are interchangeable when describing a specific method.

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

a21, the uplink power control mode supported by the terminal is a semi-static mode I (namely a semi-static mode 1);

a22, the terminal only supports independent power control of each service cell group;

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

One embodiment is that, before the first indication information is reported, the terminal reports the supported uplink power control mode, and then reporting the first indication information means that the terminal reports its uplink power control mode again (replacing the previously reported uplink power control mode), or the terminal disables (disable) a part of the uplink power control modes, and only enables the uplink power control mode currently indicated in the first indication information by the terminal.

A23, requesting to configure the uplink power control mode as a semi-static mode one;

and A24, requesting to configure independent power control of each service cell group.

It should be noted that, a21 and a22 may be regarded as the reporting of the terminal capability, that is, the terminal may directly request the first configuration from the network side, or send the capability of the terminal related to the uplink power control to the MN in the case of receiving the first configuration, and the MN performs the configuration of the uplink power control mode based on the capability of the terminal; the above a23 and a24 may be regarded as what uplink power control mode the terminal actively requests to configure, that is, the terminal may directly request the network side for the first configuration, or request the MN to update the uplink power control mode in the case of receiving the first configuration, and the MN determines whether to perform uplink power control mode reconfiguration for the terminal based on the request of the terminal.

It should be noted that the terminal may directly request the first configuration from the network side, or send the first indication information to the MN when receiving the first configuration, and optionally, in order to further reduce the sending frequency of the first indication information, in this embodiment of the application, the terminal may further determine whether the first condition is met when requesting the first configuration from the network side, or receiving the first configuration, and only when the first condition is met, the terminal sends the first indication information to the MN.

Optionally, the first condition comprises at least one of:

a31, generating SN by the first configuration;

a32, the first configuration is sent to the terminal as SN;

a33, the first configuration is invisible to the MN;

in the three cases a31 to a33, since the first configuration is determined by the SN, the MN does not know what configuration the SN has performed, and the first indication information needs to be sent to the MN to ensure that the MN is consistent with the understanding of the terminal.

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

specifically, the semi-static mode two (i.e., semi-static mode 2) is that when the UE determines the uplink power on the MCG, the uplink and downlink frame structure of the SCG (e.g., configuration of time division duplex pattern (TDD pattern)) needs to be considered.

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

a341, the TDD pattern of multiple SCGs satisfies a second condition, where the second condition includes: the TDD patterns of the SCGs are different, or the difference of the TDD patterns of the SCGs is larger than or equal to a first threshold;

for example, the TDD pattern difference of the plurality of SCGs may be at least one of TDD pattern common configuration and modified configuration;

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

The first threshold may be the number or the ratio of different uplink and downlink transmission directions in a TDD pattern of multiple SCGs on a corresponding subframe or slot or Orthogonal Frequency Division Multiplexing (OFDM) symbol.

A342, where the maximum transmission power of SCGs corresponding to the multiple SCGs satisfies a third condition, where the third condition includes: the SCG maximum transmission power corresponding to the SCGs is different, or the difference of the SCG maximum transmission power corresponding to the SCGs is larger than or equal to a second threshold value.

It should be noted that the method in a342 may also be applied to the MCG maximum transmission power and/or the UE maximum transmission power.

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

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

a351, the time domain offsets corresponding to the SCGs satisfy a fourth condition, where the fourth condition includes: the time domain offsets corresponding to the multiple SCGs are different, or the difference value of the time domain offsets corresponding to the multiple SCGs is greater than or equal to a third threshold;

here, the time domain offset refers to a 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 is not changed with SCG conversion, that is, only the SCG configuration is changed due to SCG conversion, the time domain offset corresponding to the SCG can be understood as that, under a certain SCG configuration, the terminal is based on the SCG configuration, the MCG configuration and the formula

The calculated time domain offset T-offset value.

A352, the maximum transmission power of SCGs corresponding to the plurality of SCGs satisfies a fifth condition, where the fifth condition includes: the maximum transmission power of the SCGs corresponding to the multiple SCGs is different, or the difference between the maximum transmission power of the SCGs corresponding to the multiple SCGs is greater than or equal to the fourth threshold.

It should be noted that the method in a352 may also be applied to the MCG maximum transmission power and/or the UE maximum transmission power.

It should be noted that the first threshold, the second threshold, the third threshold, and the fourth threshold may be protocol conventions, or may be configured or preconfigured on the network side.

Optionally, an embodiment of the present application further provides a manner of updating an uplink power control mode according to a state of a terminal serving cell group, and specifically, when the terminal receives the first release instruction, the terminal sends second instruction information to the MN.

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

a41, updating the uplink power control mode supported by the terminal;

it should be noted that, in this case, the terminal automatically triggers updating, and as long as the first release instruction is received, the terminal automatically updates the supported uplink power control mode and informs the MN of this capability (which uplink power control mode is supported).

A42, is used for requesting MN to reconfigure the said up run power control mode;

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

Wherein the first release indication is indicative of at least one of:

a51, releasing the configuration of the multi-connection mode;

a52, releasing the configuration of at least one SCG.

The practical use of this case will be described below.

For example, once the UE is configured with the second SCG or the multi-connection mode by the SN, the UE reports to the MN that its uplink power control capability is in the semi-static mode 1

The specific process in this use case includes:

step S101, the UE is configured with an MCG and a first SCG and works in a dual-connection mode. The dual-connection uplink power control mode is configured to be a dynamic mode or a semi-static mode 2;

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

Step S103, when the condition A is satisfied, the UE indicates the network side that the UE only supports the semi-static mode 1:

condition a includes one of:

a1, the configuration of a second SCG or a multi-connection configuration is configured to be SN-configured and invisible to MN;

a2, the current power control mode of the UE is a semi-static mode 2, and TDD patterns (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, and the T _ Offset of the first SCG is different from that of the second SCG, or the difference exceeds a certain preset range;

step S104, the UE receives the reconfiguration message, and the dual-connection uplink power control mode is configured to be a 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 multiple connection release indication from the network side, the UE may update the related capability of the uplink power control mode to the network side.

Case two, the related operation executed by the terminal under the condition of SCG switching (Switch)

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

under the condition that the terminal executes SCG conversion, the terminal executes a first operation;

wherein the first operation comprises at least one of:

b11, if the uplink power control mode before conversion is a dynamic mode and the terminal keeps the uplink power control mode unchanged after conversion, the terminal determines the time offset used after conversion through a first mode;

optionally, the first mode comprises at least one of:

b111, determining a first time offset as a time offset used after conversion, wherein the first time offset is the time offset before conversion and one of the time offsets calculated according to the SCG after conversion, and the time offset is the smallest value or the largest value;

b112, if the difference value of the time offset before conversion and the time offset calculated according to the SCG after conversion is larger than or equal to a fifth threshold, determining the time offset used after conversion as a default value;

for example, if the difference (the difference is a positive value) between the larger time offset and the smaller time offset is greater than or equal to the fifth threshold, it indicates that the time offset before the transition and the time offset after the transition are different greatly, and the time offset before the transition or the time offset after the transition cannot be used any more, but a preset default value is used. For another example, after subtracting the time offset calculated according to the SCG after conversion from the time offset before conversion, if the difference (positive or negative) is greater than or equal to the fifth threshold, it indicates that the time offset before conversion is greatly different from the time offset after conversion, and the time offset before conversion or the time offset after conversion cannot be used again, but a preset default value is used.

And B113, if the difference value between the time offset before conversion and the time offset calculated according to the SCG after conversion is less than or equal to a sixth threshold, determining the time offset used after conversion as a default value.

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

It should be noted that B112 and B113 may be understood as determining the time offset used after the conversion as a default value if the absolute value of the difference between the time offset before the conversion and the time offset calculated according to the SCG after the conversion is greater than or equal to a preset value.

The use of this in practical applications is exemplified below.

For example, in the dynamic power control mode, in the SCG Switch process, the UE always uses the minimum value or default value of T _ Offset before and after Switch

The specific process in this use case includes:

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

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 a first SCG Switch to a second SCG, the terminal determines the T _ offset used after the Switch by the method B;

the mode B includes one of the following:

b1, selecting the minimum value of T _ offsets before and after Switch as the currently selected T _ offset value;

for example, if T _ offset1 is the smallest, the time offset amount used after conversion is determined to be T _ offset1.

B2, if the change of the T _ offset values before and after the Switch exceeds a certain preset threshold value, the UE configures the current time offset value as a default value.

B12, determining an uplink power control mode according to the relationship between the converted activated SCG frequency range and the MCG frequency range;

it should be noted that, a further implementation manner of this case is:

b121, if the frequency range of the activated SCG after conversion is different from the frequency range of the MCG, the terminal determines that the uplink power control mode used after conversion is an independent power control mode or a semi-static mode I;

the use of this in practical applications is exemplified below.

For example three, the uplink power control mode change triggered by the SCG Switch is to Switch from the same FR to different FRs

Step S301, the UE is configured with MCG (FR 1), a first SCG (FR 1), and a second SCG (FR 2). The dual-connection uplink power control mode is configured to be a dynamic mode;

step S302, the terminal works in the MCG and the first SCG and uses a dynamic mode to carry out uplink power control;

step S303, if the UE executes SCG Switching, from the first SCG Switch to the second SCG, because the MCG and the second SCG are different FRs, the UE executes independent power control of each cell group or performs uplink power control using the semi-static mode 1.

B122, if the frequency range of the activated SCG after conversion is the same as that of the MCG, the terminal executes a second operation;

specifically, the second operation includes one of:

b1221, determining the uplink power control mode used after conversion to be a pre-configured uplink power control mode;

it should be noted that, when the terminal performs dual connectivity configuration, the terminal may be configured with a preconfigured uplink power control mode under dual connectivity, and the uplink power control mode used before the conversion is not consistent with the preconfigured uplink power control mode, in this case, because the frequency range of the activated SCG after the conversion is the same as the frequency range of the MCG, the terminal may use the previously configured uplink power control mode.

B1222, the terminal ignores the preconfigured uplink power control mode, and determines the uplink power control mode used after the conversion as an independent power control mode or a semi-static mode one;

in this case, the terminal performs independent power control directly after switching regardless of the configured uplink power control mode.

The use of this in practical applications is exemplified below.

For example, the uplink power control mode change triggered by the SCG Switch is switched from different FRs to the same FR

Step S401, the UE is configured with MCG (FR 2), a first SCG (FR 1), and a second SCG (FR 2). The dual-connection uplink power control mode is preconfigured to be a dynamic mode;

step S402, the terminal works in the MCG and the first SCG, and the UE executes independent power control;

step S403, if the UE executes SCG Switching, from the first SCG Switch to the second SCG, because the MCG and the second SCG are the same FR, the UE executes the dynamic mode according to the preconfigured uplink power control mode, or the UE ignores the preconfigured uplink power control mode and continues to execute independent power control.

B13, sending time offset change information to the MN;

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

an SCG conversion indication, a time offset after the conversion, or a variation of the time offset, an SCG flag before the conversion, and an SCG flag after the conversion.

The use of this in practical applications is exemplified below.

For example, after SCG Switch, the UE initiates an update negotiation procedure of T _ offset

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

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

Situation three, terminal carries out determination of uplink power control mode based on transmission state

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

determining that an uplink power control mode is a dynamic mode under the condition that first transmission of a terminal is in a first state;

wherein the first transmission is MCG transmission or SCG transmission;

the first state includes at least one of:

suspended, abnormal, failed, deactivated.

Optionally, when the first transmission of the terminal is resumed, it is determined that the uplink power control mode is an uplink power control mode used before the first transmission is in the first state or a configured uplink power control mode.

The use of this in practical applications is exemplified below.

For example, uplink power control in fast MCG recovery process

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

step S602, the MCG has a radio link failure;

step S603, the UE initiates an MCG failure information procedure (i.e., reporting MCG failure through SCG). Once the flow 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 MCG transmission, the UE considers that its uplink power control mode is a dynamic mode.

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

For example, seven, uplink power control of UE after SCG deactivation

Step S701, the UE is configured with MCG and SCG, and the uplink power control mode is configured with a semi-static mode 1 (namely, power hard division);

step S702, once the SCG is deactivated, the UE considers that its uplink power control mode is a dynamic mode.

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

Case four, the terminal re-requests to configure at least one SCG

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

c11, requesting a network side to configure or reconfigure at least one SCG (service control group) so that the maximum preparation time of a plurality of SCGs of the terminal does not exceed the maximum preparation time of the MCG;

the maximum preparation time of the SCG refers to the maximum preparation time of the UE in the SCG

The maximum preparation time of the MCG refers to the maximum preparation time ≧ for the UE in the MCG>

If the maximum preparation time of the SCGs of the terminal is less than or equal to the maximum preparation time of the MCG, the time offset is determined by the maximum preparation time of the MCG, and the SCG switching operation does not change the time offset.

C12, requesting a network side to configure or reconfigure at least one SCG so that the maximum preparation time of a plurality of SCGs of the terminal does not exceed a seventh threshold;

it should be noted that the seventh threshold may be a protocol agreement, or may be configured or preconfigured on the network side.

And C13, requesting a network side to configure or reconfigure at least one SCG so that the time division duplex pattern general configuration of the SCGs of the terminal is the same or has an associated pattern.

It should be noted that, in this case, the network side may refer to an MN or an 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 configures or reconfigures at least one SCG by requesting the network side, so that the terminal and the MN have the same understanding according to T _ Offset determined by the at least one SCG configured on the network side.

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

It should be noted that, in the power control method provided in the embodiment of the present application, the execution subject may be a power control apparatus, or a control module in the power control apparatus for executing the power control method. In the embodiment of the present application, a power control apparatus executes a power control method as an example, and the power control apparatus provided in the embodiment of the present application is described.

As shown in fig. 3, an embodiment of the present application provides a power control apparatus 300, including:

an adjusting module 301, configured to adjust an uplink power control parameter according to a state of the serving cell group;

Optionally, the adjusting module 301 includes:

a first sending unit, configured to send first indication information to a master node MN when a first configuration is requested from a network side or the first configuration is received;

wherein the first indication information is used for indicating one of the following items:

the uplink power control mode supported by the terminal is a semi-static mode I;

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

requesting to configure an uplink power control mode as a semi-static mode I;

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

the first configuration is to: configuring the terminal in a multi-connection mode, or configuring the terminal with a plurality of SCGs.

Optionally, the first sending unit is configured to:

under the condition that a first condition is met, sending first indication information to the MN;

wherein the first condition comprises at least one of:

the first configuration is generated as a Secondary Node (SN);

the first configuration is sent to the terminal by SN;

the first configuration is invisible to the MN;

the current uplink power control mode of the terminal is a semi-static mode II;

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

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

a time division duplex, TDD, pattern of a plurality of SCGs satisfying a second condition, the second condition comprising: the TDD patterns of the SCGs are different, or the difference of the TDD patterns of the SCGs is greater than or equal to a first threshold;

the maximum transmission power of the SCGs corresponding to the multiple SCGs satisfies a third condition, where the third condition includes: the SCG maximum transmission power corresponding to the SCGs are different, or the difference of the SCG maximum transmission power corresponding to the SCGs is larger than or equal to a second threshold value.

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

the time domain offsets corresponding to the multiple SCGs satisfy a fourth condition, where the fourth condition includes: the time domain offsets corresponding to the multiple SCGs are different, or the difference value of the time domain offsets corresponding to the multiple SCGs is larger than or equal to a third threshold;

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

Optionally, the apparatus further comprises:

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

wherein the first release indication is indicative of at least one of:

releasing the multi-connection mode configuration;

releasing the configuration of at least one of the SCGs.

Optionally, the adjusting module 301 includes:

an execution unit configured to execute a first operation in a case where SCG conversion is performed;

wherein the first operation comprises at least one of:

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

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

sending time offset change information to MN;

the first mode includes at least one of:

determining a first time offset as a time offset used after conversion, wherein the first time offset is the time offset before conversion and one of the time offsets calculated according to SCG after conversion, which has the minimum value or the maximum value;

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

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

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

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

if the converted activated SCG frequency range is the same as the MCG frequency range, the terminal executes a second operation;

wherein the second operation comprises one of:

determining the uplink power control mode used after conversion as a pre-configured uplink power control mode;

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

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

an SCG conversion indication, a time offset after the conversion, a variation of the time offset, an SCG flag before the conversion, and an SCG flag after the conversion.

Optionally, the adjusting module 301 includes:

the terminal comprises a determining unit and a judging unit, wherein the determining unit is used for determining that an uplink power control mode is a dynamic mode under the condition that first transmission of the terminal is in a first state;

wherein the first transmission is MCG transmission or SCG transmission;

the first state includes at least one of:

suspended, abnormal, failed, deactivated.

Optionally, the apparatus further comprises:

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

Optionally, the adjusting module 301 includes at least one of:

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

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

a third requesting unit, configured to request a network side to configure or reconfigure at least one SCG, so that the time division duplex pattern general configurations of the multiple SCGs of the terminal are the same or have associated patterns.

It should be noted that the apparatus embodiment is an apparatus corresponding to the method, and all implementation manners in the method embodiment are applicable to the apparatus embodiment, and the same technical effect can be achieved, which is not described herein again.

The power control device in the embodiment of the present application may be a device, a device or an electronic device having an operating system, or may be a component, an integrated circuit, or a chip in a terminal. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

The power control apparatus provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 2, and achieve the same technical effect, and is not described here again to avoid repetition.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for adjusting the uplink power control parameters according to the state of the service cell group;

The terminal embodiment corresponds to the terminal-side method embodiment, and all implementation processes and implementation manners of the method embodiment can be applied to the terminal embodiment and can achieve the same technical effect. Specifically, fig. 4 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.

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

Those skilled in the art will appreciate that the terminal 400 may further include a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 410 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The terminal structure shown in fig. 4 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and will not be described again here.

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

In this embodiment of the application, the radio frequency unit 401 receives downlink data from a network side device and then processes the downlink data to the processor 410; in addition, the uplink data is sent to the network side equipment. Typically, radio 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 may be used to store software programs or instructions as well as various data. The memory 409 may mainly include a stored program or instruction area and a stored data area, wherein the stored program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 409 may include a high-speed random access Memory, and may further include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 410 may include one or more processing units; alternatively, the processor 410 may integrate an application processor, which primarily handles operating systems, user interfaces, and applications or instructions, etc., and a modem processor, which primarily handles wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 410.

Wherein, the processor 410 is configured to implement:

adjusting uplink power control parameters according to the state of the service cell group;

wherein the serving cell group comprises: a master cell group MCG and/or at least one secondary cell group SCG of the terminal; the uplink power control parameter is used for controlling uplink transmission power of the terminal in a dual-connection DC mode and/or a multi-connection MC mode.

The terminal of the embodiment of the application adjusts the uplink power control parameter according to the state of the service cell group, so that the uplink power performance of the UE is ensured, and the communication reliability is ensured.

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

under the condition of requesting a first configuration to a network side or receiving the first configuration, sending first indication information to a main node MN;

requesting to configure an uplink power control mode as a semi-static mode one;

requesting to configure independent power control for each group of serving cells;

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

wherein the first condition comprises at least one of:

the first configuration is generated as an auxiliary node (SN);

the first configuration is sent to the terminal by SN;

the first configuration is invisible to the MN;

the current uplink power control mode of the terminal is a semi-static mode II;

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

the maximum transmission power of the SCGs corresponding to the multiple SCGs satisfies a third condition, where the third condition includes: the SCG maximum transmission power corresponding to the SCGs is different, or the difference of the SCG maximum transmission power corresponding to the SCGs is larger than or equal to a second threshold value.

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:

SCG maximum transmit power corresponding to a plurality of SCGs satisfies a fifth condition comprising: the maximum transmission power of the SCGs corresponding to the multiple SCGs is different, or the difference between the maximum transmission power of the SCGs corresponding to the multiple SCGs is greater than or equal to the fourth threshold.

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

sending second indication information to the MN under the condition of receiving a first release indication, wherein the second indication information is used for updating an uplink power control mode supported by the terminal or requesting the MN to reconfigure the uplink power control mode;

wherein the first release indication is indicative of at least one of:

releasing the multi-connection mode configuration;

releasing the configuration of at least one of the SCGs.

Optionally, the processor 410 is configured to implement:

executing a first operation under the condition that the terminal executes SCG conversion;

wherein the first operation comprises at least one of:

sending time offset change information to MN;

the first mode includes at least one of:

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

and if the difference value between the time offset before conversion and the time offset calculated according to the SCG after conversion is smaller than or equal to a sixth threshold, determining the time offset used after conversion as a default value.

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

wherein the second operation comprises one of:

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

an SCG conversion instruction, a time offset after the conversion, a variation of the time offset, an SCG flag before the conversion, and an SCG flag after the conversion.

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:

suspended, abnormal, failed, deactivated.

Optionally, the processor 410 is further configured to implement:

and under the condition that the first transmission of the terminal is recovered, determining that the uplink power control mode is the uplink power control mode used before the first transmission is in the first state or the configured uplink power control mode.

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

requesting a network side to configure or reconfigure at least one SCG (service control group) so that the maximum preparation time of a plurality of SCGs of the terminal does not exceed the maximum preparation time of the MCG;

requesting a network side to configure or reconfigure at least one SCG (service control group) so that the maximum preparation time of a plurality of SCGs of the terminal does not exceed a seventh threshold;

and requesting a network side to configure or reconfigure at least one SCG (short-time duplex) so as to enable the time division duplex patterns of the SCGs of the terminal to be the same or have associated patterns.

Preferably, an embodiment of the present application further provides a terminal, which includes a processor, a memory, and a program or an instruction stored in the memory and capable of running on the processor, where the program or the instruction, when executed by the processor, implements each process of the power control method embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the embodiment of the power control method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

As shown in fig. 5, an embodiment of the present application further provides a power control method, including:

step 501, the main node MN sends first information to the auxiliary node SN;

wherein the first information comprises at least one of:

d11, configuring or scheduling the maximum time domain offset required to be met when the SCG is transmitted by the SN under the condition that the terminal is configured to be in a multi-connection mode and the uplink power control mode is configured to be in a dynamic mode;

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

Is controlled by MN>

The terminal is consistent with the T _ Offset calculated by the MN, so that the scheduling accuracy of the MN to the terminal can be ensured.

D12, a first request, wherein the first request is used for indicating at least one of the following items: the SN configures the same time division duplex TDD pattern common configuration for a plurality of SCGs, and the TDD pattern configuration with the SN configured for the plurality of SCGs has associated patterns;

it should be noted that, by controlling the SCG configuration of the SN by the MN, the MN knows clearly how to configure the SCG, so as to avoid the situation that the SCG configuration is invisible to the MN, and further ensure the scheduling accuracy of the MN to the terminal.

The use of this in practical applications is exemplified below.

For example, the network side sends configuration guarantee that the configuration parameters meet the requirements

In the dynamic power control mode, the value of the parameter T _ offset is

These two terms are determined by the MCG configuration and the SCG configuration, respectively. The MN may indicate ≧ to the SN>

Is used in the SN to determine the appropriate SCG configuration, i.e., the £ or £ value that the SCG configuration derives>

The limitations given by the MN should not be exceeded. SN will actually @, upon configuration of SCG>

Is sent to the MN and the MN knows->

So that the MN can calculate T _ offset. Based on this, the network side can adopt the following method to solve:

if the MN configures the uplink power control mode of the UE as a dynamic mode, and the UE is configured with multiple SCGs through the MN, the MN may control the T _ offset value to be unchanged in the above-mentioned Xn interface interactive signaling process, for example, the MN indicates the SN to be the SN

Has a maximum value of less than or equal to ≥ ≥>

Is always ^ h, i.e., controls the value of T _ offset>

Similarly, if the MN configures the uplink power control mode of the UE to be the semi-static mode 2, and the UE is configured with a plurality of SCGs through the MN, the MN requests the SN to configure a plurality of SCG TDD pattern common configurations to be the same or have associated patterns.

It should be noted that the second SCG may also be SN configured, possibly invisible to the MN, and then the SN should ensure that the configuration meets the above requirements.

It should be noted that, in the embodiment of the present application, the SCG configuration of the SN is controlled by the MN, so that a situation that the scheduling of the MN to the terminal is affected due to the invisible SCG configuration to the MN is avoided.

As shown in fig. 6, an embodiment of the present application further provides a power control apparatus 600, including:

wherein the first information comprises at least one of:

The embodiment of the device is a device corresponding to the method, and all implementation manners in the embodiment of the method are applicable to the embodiment of the device, and the same technical effect can be achieved, and are not described herein again.

Preferably, an embodiment of the present application further provides a network node, where the network node is a master node MN and includes a processor, a memory, and a program or an instruction stored in the memory and capable of running on the processor, and when the program or the instruction is executed by the processor, the process of the embodiment of the power control method applied to the MN side is implemented, and the same technical effect can be achieved, and in order to avoid repetition, details are not described here again.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored in the computer readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements the processes of the embodiment of the power control method applied to the MN side, and can achieve the same technical effects, and in order to avoid repetition, details are not repeated here.

The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

The embodiment of the application also provides a network node, which is a master node MN and comprises a processor and a communication interface, wherein the communication interface is used for sending first information to an auxiliary node SN;

wherein the first information comprises at least one of:

under the condition that the terminal is configured to be in a multi-connection mode and the uplink power control mode is configured to be in a dynamic mode, the SN configures or schedules the maximum time domain offset required to be met when SCG transmission is carried out;

a first request indicating at least one of: the SN configures the same time division duplex TDD pattern common configuration for multiple SCGs, and the TDD pattern configuration with the SN configured for multiple SCGs has an associated pattern.

The embodiment of the network node corresponds to the embodiment of the MN side method, and all implementation processes and implementation manners of the embodiment of the method can be applied to the embodiment of the network node, and the same technical effects can be achieved.

Specifically, the embodiment of the present application further provides a network node, where the network node is a master node MN. As shown in fig. 7, the network node 700 comprises: antenna 701, radio frequency device 702, baseband device 703. The antenna 701 is connected to a radio frequency device 702. In the uplink direction, the rf 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 information to be transmitted and transmits the information to the radio frequency device 702, and the radio frequency device 702 processes the received information and transmits the processed information through the antenna 701.

The above-mentioned band processing means may be located in the baseband means 703, and the method performed by the network device in the above embodiment may be implemented in the baseband means 703, where the baseband means 703 includes the processor 704 and the memory 705.

The baseband apparatus 703 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 7, where one of the chips, for example, the processor 704, is connected to the memory 705 to call up the program in the memory 705, so as to perform the network device operations shown in the above method embodiments.

The baseband device 703 may further include a network interface 706, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 702.

Specifically, the network device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 705 and capable of being executed on the processor 704, and the processor 704 calls the instructions or programs in the memory 705 to execute the method executed by each module shown in fig. 6, and achieve the same technical effect, and are not described herein in detail to avoid repetition.

As shown in fig. 8, an embodiment of the present application further provides a power control method, including:

step 801, when the terminal performs SCG conversion of the secondary cell group 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.

The use of this in practical applications is exemplified below.

For example nine, after SCG Switch, the SN initiates the update negotiation process of T _ offset

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

And 2, step: once the UE has performed SCG Switching, from the first SCG Switch to the second SCG, the SN informs the MN of its current T-offset value.

It should be noted that, in the embodiment of the present application, when the terminal converts the SCG, the time offset used by the terminal on the converted SCG is notified to the MN, so that a situation that the scheduling of the MN to the terminal is affected due to invisibility of the SCG configuration to the MN is avoided.

As shown in fig. 9, an embodiment of the present application further provides a power control apparatus 900, which is applied to a secondary node SN, and includes:

Preferably, an embodiment of the present application further provides a network node, where the network node is an auxiliary node SN, and the network node includes a processor, a memory, and a program or an instruction stored in the memory and capable of running on the processor, where the program or the instruction is executed by the processor to implement each process of the embodiment of the power control method applied to the SN side, and can achieve the same technical effect, and is not described herein again to avoid repetition.

The embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored in the computer readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements the processes of the embodiment of the power control method applied to the SN side, and can achieve the same technical effects, and in order to avoid repetition, details are not repeated here.

The embodiment of the present application further provides a network node, where the network node is an auxiliary node SN, and the network node includes a processor and a communication interface, and the communication interface is configured to send a time offset used by a terminal on a current SCG to a master node MN when the terminal performs SCG conversion in an auxiliary cell group and an uplink power control mode of the terminal is a dynamic mode.

The embodiment of the network node corresponds to the embodiment of the SN side method, and all implementation processes and implementation manners of the embodiment of the method can be applied to the embodiment of the network node, and the same technical effects can be achieved.

Specifically, an embodiment of the present application further provides a network node, where the network node is an auxiliary node SN, and specifically, the structure of the SN may refer to the structure of the network node in fig. 7, which is not described herein again.

Optionally, as shown in fig. 10, an embodiment of the present application further provides a communication device 1000, which includes a processor 1001, a memory 1002, and a program or an instruction stored in the memory 1002 and executable on the processor 1001, for example, when the communication device 1000 is a terminal, the program or the instruction is executed by the processor 1001 to implement the processes of the foregoing power control method embodiment, and the same technical effect can be achieved. When the communication device 1000 is a network node, the program or the instructions are executed by the processor 1001 to implement the processes of the foregoing power control method embodiments, and the same technical effect can be achieved, and for avoiding repetition, details are not described here again.

The terminal referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be called a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile phone (or called a "cellular" phone) and a computer having a mobile terminal device, for example, a portable, pocket, hand-held, computer-included or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN), and may exchange languages and/or data with the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, session Initiation Protocol (SIP) phones, wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment of the present application.

The network Node according to the embodiment of the present application may be a Base Transceiver Station (BTS) in Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (evolved Node B, eNB or eNodeB) in LTE, a relay Station or an Access point, or a Base Station in a future 5G network, and the like, which is not limited herein.

Multiple Input Multiple Output (MIMO) transmission may be performed between a network node and a terminal by using one or more antennas, where the MIMO transmission may be Single User MIMO (SU-MIMO) or Multi-User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of root antenna combinations.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the above power control method embodiment, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one of 8230, and" comprising 8230does not exclude the presence of additional like elements in a process, method, article, or apparatus comprising the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application or portions thereof that contribute to the prior art may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method of power control, comprising:

2. The method of claim 1, wherein the adjusting of the uplink power control parameter by the terminal according to the state of the serving cell group comprises:

requesting to configure an uplink power control mode as a semi-static mode I;

3. The method of claim 2, wherein the sending the first indication information to the primary node MN comprises:

wherein the first condition comprises at least one of:

the first configuration is generated as an auxiliary node (SN);

the first configuration is sent to the terminal by SN;

the first configuration is invisible to the MN;

the current uplink power control mode of the terminal is a semi-static mode II;

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

4. The method according to claim 3, wherein in a case that the first condition includes that a current uplink power control mode of the terminal is a semi-static mode two, the first condition further includes at least one of:

a time division duplex, TDD, pattern of the plurality of SCGs satisfies a second condition comprising: the TDD patterns of the SCGs are different, or the difference of the TDD patterns of the SCGs is greater than or equal to a first threshold;

5. The method according to claim 3, wherein in a case that the first condition includes that a current uplink power control mode of the terminal is a dynamic mode, the first condition further includes at least one of:

6. The method of claim 2 or 3, further comprising:

sending second indication information to the MN under the condition that the terminal receives a first release indication, wherein the second indication information is used for updating an uplink power control mode supported by the terminal or requesting the MN to reconfigure the uplink power control mode;

wherein the first release indication is indicative of at least one of:

releasing the multi-connection mode configuration;

releasing the configuration of at least one of the SCGs.

7. The method according to any one of claims 1 to 6, wherein the terminal performs the adjustment of the uplink power control parameter according to the state of the serving cell group, including:

wherein the first operation comprises at least one of:

sending time offset change information to MN;

the first mode includes at least one of:

8. The method according to claim 7, wherein the determining the uplink power control mode according to the relationship between the frequency range of the converted activated SCG and the frequency range of the MCG comprises one of:

wherein the second operation comprises one of:

9. The method of claim 7, wherein the time offset change information comprises at least one of:

10. The method according to any one of claims 1 to 6, wherein the terminal performs the adjustment of the uplink power control parameter according to the state of the serving cell group, including:

wherein the first transmission is MCG transmission or SCG transmission;

the first state includes at least one of:

suspended, abnormal, failed, deactivated.

11. The method of claim 10, further comprising:

12. The method according to any one of claims 1 to 6, wherein the terminal performs the adjustment of the uplink power control parameter according to the state of the serving cell group, and the adjustment includes at least one of:

13. A method of power control, comprising:

the main node MN sends first information to the auxiliary node SN;

wherein the first information comprises at least one of:

14. A method of power control, comprising:

15. A power control apparatus, comprising:

16. The apparatus of claim 15, wherein the adjustment module comprises:

requesting to configure an uplink power control mode as a semi-static mode one;

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

17. The apparatus of claim 16, wherein the first sending unit is configured to:

wherein the first condition comprises at least one of:

the first configuration is generated as an auxiliary node (SN);

the first configuration is sent to the terminal by SN;

the first configuration is invisible to the MN;

the current uplink power control mode of the terminal is a semi-static mode II;

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

18. The apparatus of claim 16 or 17, further comprising:

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

wherein the first release indication is indicative of at least one of:

releasing the multi-connection mode configuration;

releasing the configuration of at least one of the SCGs.

19. The apparatus of any one of claims 15 to 18, wherein the adjustment module comprises:

wherein the first operation comprises at least one of:

sending time offset change information to MN;

the first mode includes at least one of:

20. The apparatus of any one of claims 15 to 18, wherein the adjustment module comprises:

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

wherein the first transmission is an MCG transmission or an SCG transmission;

the first state includes at least one of:

suspended, abnormal, failed, deactivated.

21. The apparatus according to any one of claims 15 to 18, wherein the adjusting means comprises at least one of:

22. A terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the power control method according to any one of claims 1 to 12.

23. A power control apparatus, comprising:

wherein the first information comprises at least one of:

24. A power control apparatus, comprising:

25. A network node comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, which program or instructions, when executed by the processor, carry out the steps of the power control method according to claim 13 or 14.

26. A readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the power control method according to any one of claims 1 to 14.