CN109309954B

CN109309954B - Uplink power control method, base station and terminal

Info

Publication number: CN109309954B
Application number: CN201710633656.0A
Authority: CN
Inventors: 司倩倩; 郑方政; 邢艳萍
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-07-28
Filing date: 2017-07-28
Publication date: 2021-06-11
Anticipated expiration: 2037-07-28
Also published as: CN109309954A

Abstract

The embodiment of the invention provides an uplink power control method, a base station and a terminal, which are used for realizing the control of the uplink power of the terminal in dual-connection transmission. The method comprises the following steps: the base station sends power configuration information to the terminal, wherein the power configuration information is used for configuring uplink maximum transmitting power of the terminal in the NR system and the LTE system; the base station receives reporting information sent by the terminal, wherein the reporting information is used for representing the use state of uplink transmitting power of the terminal in the NR system and the LTE system; and the base station adjusts the uplink maximum transmitting power of the terminal in the NR system according to the reported information.

Description

Uplink power control method, base station and terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an uplink power control method, a base station, and a terminal.

Background

With the development of mobile communication service demand, organizations such as International Telecommunication Union (ITU) and third Generation Partnership Project (3 GPP) have begun to research New wireless communication systems, such as 5 th Generation New RAT (5G NR). Therefore, in the future 5G network construction, the radio resource utilization rate can be improved through the dual connectivity transmission between the 5G NR system and the Long Term Evolution (LTE) system, and the user and system performance can be improved.

Currently, in dual connectivity transmission of the LTE system, a terminal (UE) establishes a connection with two different base stations and simultaneously enjoys radio resources of the two base stations. The two base stations can be respectively defined as a main base station (MeNB) and a secondary base station (SeNB), and a non-ideal backhaul link is formed between the two base stations. When performing uplink power control on the UE, the MeNB semi-statically allocates two protection powers to the UE for uplink power control, for example, P _ MeNB (primary base station protection power) and P _ SeNB (secondary base station protection power). In practical applications, the uplink power of the UE for the MeNB does not exceed P _ MeNB, and the uplink power of the UE for the SeNB cannot exceed P _ SeNB. When the sum of the P _ MeNB and the P _ SeNB is smaller than the maximum transmission power of the UE, the UE does not completely utilize the available power of the UE, the UE can redistribute the residual power, the main base station and the auxiliary base station can share the residual power, and the purpose of reasonably and effectively utilizing the power is achieved.

However, in the dual-connection transmission of NR and LTE systems, since NR and LTE belong to different systems, power coordination between LTE and NR cannot be performed by a power control scheme similar to that in LTE dual-connection transmission, and thus there is no control scheme for uplink power of terminals in NR system and LTE system in the prior art.

Disclosure of Invention

The embodiment of the invention provides an uplink power control method, a base station and a terminal, which are used for realizing the control of uplink power of a terminal in double connection with an NR system and an LTE system and improving the uplink transmission performance in the NR system.

The embodiment of the invention provides the following specific technical scheme:

in a first aspect, an embodiment of the present invention provides an uplink power control method, including:

the base station sends power configuration information to the terminal, wherein the power configuration information is used for configuring uplink maximum transmitting power of the terminal in the NR system and the LTE system;

the base station receives reporting information sent by the terminal, wherein the reporting information is used for representing the use state of uplink transmitting power of the terminal in the NR system and the LTE system;

and the base station determines a power adjustment parameter aiming at the terminal according to the reported information, wherein the power adjustment parameter is used for adjusting the uplink maximum transmitting power of the terminal in the NR system.

In a possible implementation manner, the reported information includes power headroom respectively corresponding to the terminal in the NR system and the LTE system at present and/or a status parameter of uplink data to be transmitted in the terminal; the state parameter is used for representing the degree of demand of the terminal on uplink transmitting power when the terminal transmits the uplink data to be transmitted.

In a possible embodiment, the adjusting, by the base station, the uplink maximum transmission power of the terminal in the NR system according to the reported information includes:

the base station determines a power adjustment parameter for adjusting the uplink maximum transmitting power of the terminal in the NR system according to the reported information;

the base station generates indication information according to the power adjustment parameter, wherein the indication information is Downlink Control Information (DCI) or high-level signaling;

and the base station sends the indication information to the terminal to indicate the terminal to adjust the uplink maximum transmitting power in the NR system according to the power adjustment parameter.

In a possible implementation manner, the power adjustment parameter is an adjusted uplink maximum transmission power in the NR system, or the power adjustment parameter is a power difference between a current uplink maximum transmission power in the NR system and the adjusted uplink maximum transmission power.

In a possible embodiment, if the indication information is the DCI;

the base station sends the indication information to the terminal to indicate the terminal to adjust the uplink maximum transmitting power in the NR system according to the power adjustment parameter, and the method comprises the following steps:

and the base station sends the indication information to the terminal to indicate the terminal to adjust the uplink maximum transmitting power in the NR system according to the power adjustment parameter in the uplink data transmission time slot corresponding to the DCI, or indicate the terminal to always adjust the uplink maximum transmitting power in the NR system according to the power adjustment parameter.

In a possible embodiment, the indication information includes an independent information field in the DCI, or the indication information reuses a transmit power control, TPC, information field in the DCI.

In a possible implementation manner, if the indication information reuses a TPC information field in the DCI, the TPC information field is indicated by 1-bit information in the DCI to be used for adjusting an actual uplink transmit power of the terminal or for adjusting an uplink maximum transmit power of the terminal.

In a possible implementation manner, the power configuration information includes a scaling factor of uplink maximum transmission power of the terminal in the NR system and in the LTE system.

In a second aspect, an embodiment of the present invention provides an uplink power control method, which is applied to a terminal, where the terminal performs dual connection with a wireless communication system NR and a long term evolution system LTE, and the method includes:

the terminal receives semi-static power configuration information sent by a base station and configures uplink maximum transmitting power in the NR system and the LTE system according to the power configuration information;

the terminal sends reporting information to the base station; the reported information is used for representing the use states of uplink transmission power in the NR system and the LTE system;

and the terminal receives the indication information fed back by the base station according to the report information and adjusts the uplink maximum transmitting power in the NR system according to the indication information, wherein the indication information is Downlink Control Information (DCI) or high-level signaling.

In a possible implementation manner, the sending, by the terminal, the report information to the base station includes:

the terminal determines the current corresponding power margins in the NR system and the LTE system according to the uplink maximum transmitting power and the actual uplink transmitting power in the NR system and the LTE system respectively, and/or determines the state parameters of uplink data to be transmitted; the state parameter is used for representing the degree of demand of the terminal on uplink transmitting power when the terminal transmits the uplink data to be transmitted;

and the terminal reports the power headroom and/or the state parameter of the uplink data to be transmitted to the base station.

In a possible embodiment, if the indication information is the DCI;

the terminal receiving the indication information fed back by the base station according to the report information and adjusting the uplink maximum transmitting power in the NR system according to the indication information includes:

the terminal receives DCI fed back by the base station according to the report information and determines power adjustment parameters in the DCI; wherein the power adjustment parameter is an adjusted uplink maximum transmission power in the NR system, or the power adjustment parameter is a power difference between a current uplink maximum transmission power in the NR system and the adjusted uplink maximum transmission power;

and the terminal adjusts the uplink maximum transmitting power in the NR system according to the power adjustment parameter in the uplink data transmission time slot corresponding to the DCI, or always adjusts the uplink maximum transmitting power in the NR system according to the power adjustment parameter.

In a third aspect, an embodiment of the present invention provides an uplink power control method, which is applied to a base station, where the base station is a main base station in a first base station and a second base station in a long term evolution system LTE when a terminal performs dual connectivity with the first base station in a wireless communication system NR and the second base station, and the method includes:

and the base station sends semi-static power configuration information to the terminal, wherein the power configuration information is used for configuring the proportionality coefficients of the minimum guaranteed transmitting power and the shared power margin of the terminal in the NR system and the terminal in the LTE system.

In a fourth aspect, an embodiment of the present invention provides an uplink power control method, which is applied to a terminal, where the terminal performs dual connection with a wireless communication system NR and a long term evolution system LTE, and the method includes:

the terminal receives power configuration information sent by a base station;

the terminal determines whether the currently required transmitting power is larger than the maximum transmitting power supported by the terminal;

if the transmitting power required by the terminal is determined to exceed the maximum transmitting power supported by the terminal, the terminal adjusts the power according to the power configuration information;

and if the transmitting power required by the terminal is determined to be less than or equal to the maximum transmitting power supported by the terminal, the terminal determines the uplink transmitting power according to actual needs.

In a possible implementation manner, if it is determined that the transmission power required by the terminal exceeds the maximum transmission power supported by the terminal, the performing, by the terminal, power adjustment according to the power configuration information includes:

the terminal respectively adjusts the uplink maximum transmitting power in the LTE system and the uplink maximum transmitting power in the NR system according to the proportional coefficient of the shared power allowance in the power configuration information; the adjusted uplink maximum transmission power of the terminal in the LTE system is the minimum guaranteed transmission power of the terminal in the LTE system plus a power margin times a corresponding scaling factor, and the adjusted uplink maximum transmission power of the terminal in the NR system is the minimum guaranteed transmission power of the terminal in the NR system plus a power margin times a corresponding scaling factor.

In a fifth aspect, an embodiment of the present invention provides a base station, where when a terminal performs dual connectivity with a first base station in a wireless communication system NR and a second base station in a long term evolution system LTE, the base station is a main base station in the first base station and the second base station, and the base station includes:

a sending module, configured to send power configuration information to the terminal, where the power configuration information is used to configure uplink maximum transmission power of the terminal in the NR system and in the LTE system;

a receiving module, configured to receive report information sent by the terminal, where the report information is used to represent a use state of uplink transmission power of the terminal in the NR system and the LTE system;

and the processing module is used for adjusting the uplink maximum transmitting power of the terminal in the NR system according to the reported information.

In a possible embodiment, the processing module comprises:

a first determining module, configured to determine, according to the report information, a power adjustment parameter for adjusting an uplink maximum transmission power of the terminal in the NR system;

a generating module, configured to send indication information to the terminal according to the power adjustment parameter, where the indication information is downlink control information DCI or a high-level signaling;

and the indicating module is used for sending the indicating information to the terminal so as to indicate the terminal to adjust the uplink maximum transmitting power in the NR system according to the power adjusting parameter.

In a possible implementation manner, the power adjustment parameter is an adjusted uplink maximum transmission power in the NR system, or the power adjustment parameter is a power difference between the adjusted uplink maximum transmission power and a current uplink maximum transmission power in the NR system.

In a possible embodiment, if the indication information is the DCI;

the indication module is used for: and sending the indication information to the terminal, and indicating the terminal to adjust the uplink maximum transmitting power in the NR system according to the power adjustment parameter in the uplink data transmission time slot corresponding to the DCI, or indicating the terminal to always adjust the uplink maximum transmitting power in the NR system according to the power adjustment parameter.

In a sixth aspect, an embodiment of the present invention provides a terminal, where the terminal performs dual connectivity with a wireless communication system NR and a long term evolution system LTE, and the terminal includes:

the receiving module is used for receiving semi-static power configuration information sent by a base station and configuring uplink maximum transmitting power in the NR system and the LTE system according to the power configuration information;

a sending module, configured to send report information to the base station; the reported information is used for representing the use states of uplink transmission power in the NR system and the LTE system;

and the adjusting module is used for receiving the indication information fed back by the base station according to the report information and adjusting the uplink maximum transmitting power in the NR system according to the indication information, wherein the indication information is Downlink Control Information (DCI) or a high-level signaling.

In a possible embodiment, the sending module includes:

a first determining module, configured to determine, according to uplink maximum transmit power and actual uplink transmit power in the NR system and the LTE system, power margins corresponding to the NR system and the LTE system at present, and/or determine, by the terminal, a state parameter of uplink data to be transmitted; the state parameter is used for representing the degree of demand of the terminal on uplink transmitting power when the terminal transmits the uplink data to be transmitted;

and the reporting module is used for reporting the power headroom and/or the state parameter of the uplink data to be transmitted to the base station.

In a possible embodiment, if the indication information is the DCI; the adjustment module includes:

a second determining module, configured to receive DCI fed back by the base station according to the report information, and determine a power adjustment parameter in the DCI; wherein the power adjustment parameter is an adjusted uplink maximum transmission power in the NR system, or the power adjustment parameter is a power difference between a current uplink maximum transmission power in the NR system and the adjusted uplink maximum transmission power;

and the control module is configured to adjust the uplink maximum transmission power in the NR system according to the power adjustment parameter in the uplink data transmission timeslot corresponding to the DCI, or always adjust the uplink maximum transmission power in the NR system according to the power adjustment parameter.

In a seventh aspect, an embodiment of the present invention provides a base station, where the base station is a main base station in a first base station and a second base station in a long term evolution system LTE when a terminal performs dual connectivity with the first base station in a wireless communication system NR and the second base station, and the base station includes:

a sending module, configured to send semi-static power configuration information to the terminal, where the power configuration information is used to configure a proportionality coefficient between a minimum guaranteed transmit power and a shared power headroom of the terminal in the NR system and in the LTE system.

In an eighth aspect, an embodiment of the present invention provides a terminal, where the terminal performs dual connectivity with a wireless communication system NR and a long term evolution system LTE, and the terminal includes:

a receiving module, configured to receive power configuration information sent by a base station;

a determining module, configured to determine whether a currently required transmit power is greater than a maximum transmit power supported by the terminal;

a first processing module, configured to perform power adjustment according to the power configuration information if it is determined that the transmit power required by the terminal exceeds a maximum transmit power supported by the terminal;

and the second processing module is used for determining the uplink transmitting power according to actual needs if the transmitting power required by the terminal is determined to be less than or equal to the maximum transmitting power supported by the terminal.

In a possible embodiment, the first processing module is configured to:

respectively adjusting uplink maximum transmitting power in the LTE system and the NR system according to a proportional coefficient of a shared power margin in the power configuration information; the adjusted uplink maximum transmission power of the terminal in the LTE system is the minimum guaranteed transmission power of the terminal in the LTE system plus a power margin times a corresponding scaling factor, and the adjusted uplink maximum transmission power of the terminal in the NR system is the minimum guaranteed transmission power of the terminal in the NR system plus a power margin times a corresponding scaling factor.

In a ninth aspect, an embodiment of the present invention provides a computer apparatus, which includes a processor, and the processor is configured to implement the methods provided in the first, second and third aspects when executing a computer program stored in a memory.

In a tenth aspect, the present invention provides a computer-readable storage medium, which stores computer instructions, and when the instructions are executed on a computer, the instructions cause the computer to execute the methods provided in the first, second and third aspects.

In the embodiment of the invention, the base station respectively sets the uplink maximum transmitting power of the terminal in the NR system and the uplink maximum transmitting power of the terminal in the LTE system by sending the power configuration information to the terminal in double connection, further determines the use states of the uplink transmitting power of the terminal in the NR system and the uplink transmitting power of the terminal in the LTE system by acquiring the reported information of the terminal, and determines the power adjusting parameter aiming at the terminal so as to adjust the uplink maximum transmitting power in the NR system in double connection transmission, and simultaneously can ensure that the existing power control scheme in the LTE system is not influenced, thereby reasonably utilizing the uplink transmitting power of the terminal and improving the uplink transmission performance in the NR system.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of a terminal in dual connectivity transmission according to an embodiment of the present invention;

fig. 2 is a first flowchart illustrating an uplink power control method according to an embodiment of the present invention;

fig. 3 is a second flowchart illustrating an uplink power control method according to an embodiment of the present invention;

fig. 4 is a third flowchart illustrating an uplink power control method according to an embodiment of the present invention;

fig. 5 is a fourth flowchart illustrating an uplink power control method according to an embodiment of the present invention;

FIG. 6 is a first block diagram of a base station according to an embodiment of the present invention;

fig. 7 is a first block diagram of a terminal according to an embodiment of the present invention;

FIG. 8 is a block diagram of a second exemplary base station according to the present invention;

fig. 9 is a block diagram of a terminal according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a computer device according to an embodiment of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

First, a network architecture to which the embodiments of the present invention are applied will be described for those skilled in the art to understand.

Fig. 1 is a schematic diagram of a terminal in dual connectivity transmission according to an embodiment of the present invention, where a base station 1 and a base station 2 are base stations in different communication systems. For example, the base station 1 may be a base station (e.g., NR gbb) in a New RAT (NR) system, and the base station 2 may be a base station (e.g., LTE eNB) in an LTE system. In the dual-connectivity transmission, one of the base station 1 and the base station 2 serves as a main base station of the terminal, and the other serves as a secondary base station. The main base station and the auxiliary base station can communicate with each other, and both the base station 1 and the base station 2 can be connected to a 5G core network.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example one

An embodiment of the present invention provides an uplink power control method, which may be applied to a network architecture shown in fig. 1. As shown in fig. 2, the method may include the steps of:

s11: and the base station sends power configuration information to the terminal, wherein the power configuration information is used for configuring the uplink maximum transmitting power of the terminal in an NR system and an LTE system.

In the embodiment of the present invention, the base station may be a master base station of two base stations that perform dual connection with the terminal. The base station can send power configuration information to the terminal in a semi-static configuration mode so as to inform the terminal of the uplink maximum transmission power in the NR system and the LTE system.

In practical applications, the power configuration information transmitted by the base station may be, but is not limited to, the following ways:

the first method is as follows: the base station semi-statically configures the uplink maximum transmission power of the terminal in the NR system and the LTE system, that is, directly configures the uplink maximum transmission power of the terminal in the NR system, such as P_cmax，NRAnd configuring the uplink maximum transmission power, such as P, of the terminal in the LTE system_cmax，LTE。

The second method comprises the following steps: the base station semi-statically configures a proportionality coefficient of uplink maximum transmitting power of the terminal in the NR system and the LTE system, namely indicates the proportion of the uplink maximum transmitting power in the NR system and the LTE system respectively occupying the total uplink maximum transmitting power of the terminal.

The terminal may determine the uplink maximum transmission power in the NR system and the LTE system according to the proportionality coefficient of the uplink maximum transmission power after receiving the power configuration information.

For example, if the proportionality coefficient of the uplink maximum transmission power configured in the power configuration information is L_NR：L_LTEIf the total uplink maximum transmission power of the terminal is 200mW, the uplink maximum transmission power of the terminal in the NR system may be determined, which may be expressed as: p_cmax，NR80mW, and determining the uplink maximum transmission power of the terminal in the LTE system, which may be expressed as: p_cmax，NR＝120mW。

S12: and the base station receives the reported information sent by the terminal, and the reported information is used for representing the use state of the uplink transmitting power of the terminal in the NR system and the LTE system.

In the embodiment of the present invention, the reported information may include power margins respectively corresponding to the terminal in the NR system and the LTE system at present and/or a state parameter of uplink data to be transmitted in the terminal, and the state parameter may be used to represent a degree of a requirement of the terminal on uplink transmission power when the terminal transmits the uplink data to be transmitted.

The power headroom respectively corresponding to the NR system and the LTE system may be a difference between a maximum transmission power (i.e., configured uplink maximum transmission power) allowed by the terminal in each system and a currently actually used uplink transmission power.

For example, the power headroom of the terminal in the NR system can be expressed as: PH value_NR＝P_cmax，NRP1, where P1 is the actual uplink transmit power of the terminal currently in the NR system. The power headroom of the terminal in the LTE system can be expressed as: PH value_LTE＝P_cmax，LTEP2, where P2 is the actual uplink transmission power of the terminal currently in the LTE system.

The status parameter may include a buffer value and/or a quality of service Identifier (QCI), where the buffer value may be used to represent a buffer amount of the uplink data to be transmitted, and the QCI may be used to represent an importance of the uplink data to be transmitted.

In practical applications, uplink data of different traffic types may have different weight coefficients. For example, a larger weight coefficient value is set for uplink data of a service type with higher QCI requirement. The buffer value may determine the reported state parameter according to a value (e.g., x) of the weight coefficient and a buffer amount (e.g., b) of the uplink data of each service type.

For example, if the uplink data corresponds to k traffic types and the uplink data of each traffic type in the uplink data corresponds to a weight coefficient and a buffer amount, the buffer value in the status parameter may be x1 × b1+ x2 × b2+ … … xk × bk. Wherein, x b represents the demand degree of the terminal for uplink transmitting power when transmitting uplink data of one service type. Generally speaking, the larger the buffer value is, the larger the uplink transmission power required by the terminal is.

S13: and the base station adjusts the uplink maximum transmitting power of the terminal in the NR system according to the reported information.

In the embodiment of the present invention, the base station may determine, according to the report information, a power adjustment parameter for adjusting the uplink maximum transmission power of the terminal in the NR system, where the power adjustment parameter may be a parameter determined when the base station determines, according to the report information, that the uplink maximum transmission power of the terminal in the NR system needs to be adjusted, so that the terminal increases or decreases the uplink maximum transmission power in the NR system according to the power adjustment parameter to perform adjustment.

In the embodiment of the present invention, the maximum uplink transmission power of the terminal in the NR system is mainly increased as an example. Then, when the power adjustment parameter is determined in S13, the base station may determine, according to the reported information, a first power headroom of the terminal in the NR system and a second power headroom of the terminal in the LTE system, and further determine whether the first power headroom and the second power headroom meet a first preset condition, and whether the state parameter of the uplink data to be transmitted meets a second preset condition; the first preset condition is that the first power headroom is less than or equal to a first power headroom threshold, and the second power headroom is greater than or equal to a second power headroom threshold; the second preset condition is that a buffer value of the terminal in a first state parameter of uplink data to be transmitted in the NR system is greater than or equal to a first preset buffer threshold, and/or a buffer value of the terminal in a second state parameter of the uplink data to be transmitted in the LTE system is less than or equal to a second preset buffer threshold.

And if the base station determines that the first power headroom and the second power headroom accord with a first preset condition and the state parameter of the uplink data to be transmitted accords with a second preset condition, the base station determines that the uplink maximum transmitting power of the terminal in the NR system can be increased.

Therefore, in the determination process, the power margin or the state parameter of the uplink data to be transmitted of the terminal may be used alone, or the power margin or the state parameter of the uplink data to be transmitted of the terminal may be combined to determine whether the uplink maximum transmission power of the terminal in the NR system needs to be adjusted.

Therefore, the judgment process performed in S13 includes, but is not limited to, the following cases:

case 1: and the base station determines that the power margin in the NR system is larger, or determines that the power margin in the LTE system is smaller or 0, and does not increase the uplink maximum transmitting power in the NR system.

Case 2: the base station determines that the power headroom in the NR system is small and determines that the power headroom in the LTE system is large, the uplink maximum transmission power in the NR system may be increased.

Case 3: the base station determines that the power margin in the NR system is small and the power margin in the LTE system is large, and simultaneously determines whether the uplink maximum transmitting power of the terminal in the NR system needs to be adjusted or not by combining the state parameter of the uplink data to be transmitted of the terminal. The following may be included at this time:

1) if the uplink data cache in the LTE system is larger and/or the QCI requirement is higher, it indicates that the base station needs to allocate more resources to the terminal in the LTE system as much as possible, and needs a larger transmission power, and even if the power headroom in the LTE system reported by the terminal is larger, the uplink maximum transmission power in the NR system is not increased at this time.

2) If the uplink data buffering in LTE is less or the QCI requirement is lower, and the buffer value of the uplink data in the NR system is larger or the QCI requirement is higher, the base station may determine to increase the uplink maximum transmit power in the NR system.

Case 4: the base station determines that the power headroom in the NR system is larger, determines that the power headroom in the LTE system is smaller or 0, and determines that the uplink data cache in the NR system is larger and/or the QCI requirement is lower, or determines that the uplink data cache in the LTE system is larger and/or the QCI requirement is higher. At this time, the base station may determine to reduce the uplink maximum transmission power of the terminal in the NR system.

It should be noted that, after the adjustment, the sum of the uplink maximum transmission powers configured by the terminal in the NR system and the LTE system may exceed the maximum transmission power that can be supported by the terminal, but in an actual transmission process, the actual uplink transmission power of the terminal does not exceed the maximum transmission power that can be supported by the terminal. Or, while adjusting the uplink maximum transmission power of the terminal in the NR system, the uplink maximum transmission power in the LTE system may also be adjusted.

In the embodiment of the invention, when the uplink maximum transmitting power of the terminal in the NR system is determined to be required to be adjusted, the power adjustment parameter aiming at the terminal can be determined. The power adjustment parameter may be an adjusted uplink maximum transmission power in the NR system, or may be a power difference between the adjusted uplink maximum transmission power and a current uplink maximum transmission power in the NR system. For example, when the uplink maximum transmission power of the terminal in the NR system needs to be increased, the difference may be a positive number.

After determining the power adjustment parameter, the base station may perform dynamic indication through Downlink Control Information (DCI) or higher layer signaling (e.g., MAC CE), where the DCI may be DCI for scheduling Physical Uplink Shared Channel (PUSCH) transmission and/or scheduling Physical Downlink Shared Channel (PDSCH) transmission, or the DCI may also be DCI specifically used for power adjustment.

In the embodiment of the present invention, the base station may indicate the adjusted uplink maximum transmission power in the following two ways.

The first method is as follows: and the base station indicates the difference between the adjusted uplink maximum transmitting power and the current uplink maximum transmitting power.

At this time, 2 bits of information may be added to the DCI to indicate the difference between the maximum uplink transmit powers before and after the adjustment. For example, bit 00 indicates-1 dB, bit 01 indicates 0dB, bit 10 indicates 1dB, and bit 11 indicates 2 dB.

After the base station sends the DCI to the terminal in this way, the terminal may calculate the latest maximum transmit power according to the current uplink maximum transmit power and the difference carried by the DCI, thereby adjusting the uplink maximum transmit power in the NR system.

For example, the base station determines that the terminal is in the NR system, dynamic power adjustment is indicated by bit information "10" in DCI for scheduling PUSCH transmission, the terminal may determine that the power adjustment parameter is 1dB according to bit information "10" in DCI for scheduling PUSCH transmission, and the uplink maximum transmission power adjusted by the terminal in the NR system is P_cmax，NR+1dB。

The second method comprises the following steps: the base station directly indicates the adjusted uplink maximum transmission power in the DCI, and at this time, it may need to define more bit numbers and define specific power values corresponding to different bit information. For example, 4 bits of information may be defined for indicating the adjusted maximum uplink transmit power, such as 1000 indicating 8dB, 1010 indicating 10dB, 1110 indicating 14dB, 1111 representing 15dB, and so on.

Then, if the adjusted maximum uplink transmission power is 10dB, the adjusted maximum uplink transmission power may be represented by bit information "1010" in the DCI.

It should be noted that, after the base station sends the indication information to the terminal, the base station may instruct the terminal to adjust the uplink maximum transmission power in the NR system according to the power adjustment parameter in the uplink data transmission time slot corresponding to the DCI, that is, the adjusted uplink maximum transmission power is only applied to the uplink data transmission time slot corresponding to the DCI.

Or, the indication information may also indicate the terminal to adjust the uplink maximum transmission power in the NR system according to the power adjustment parameter all the time. For example, the uplink maximum transmission power is valid before determining the new power adjustment parameter, or the adjusted uplink maximum transmission power is valid all the time, and so on. Those skilled in the art can set the setting according to the requirement, and the embodiment of the present invention is not limited to this specifically.

In the embodiment of the present invention, the indication information includes an independent information field in the DCI, or indicates information to reuse a Transmit Power Control (TPC) information field in the DCI.

If the indication information reuses the TPC information field in the DCI, the DCI may indicate, by adding 1-bit information, whether the TPC information field is used to adjust the actual uplink transmit power of the terminal or to adjust the uplink maximum transmit power of the terminal. If the 1-bit information added in the DCI indicates that the TPC information field is used for adjusting the actual uplink transmission power of the terminal, the uplink transmission power is adjusted in the terminal by adopting the first mode, and if the 1-bit information indicates that the TPC information field is used for adjusting the uplink maximum transmission power of the terminal, the uplink transmission power is adjusted in the terminal by adopting the second mode.

In the embodiment of the invention, the control of the uplink transmitting power of the terminal is realized by adjusting the uplink maximum transmitting power of the terminal in the NR system, the existing power control scheme in the LTE system is not influenced, the terminal can transmit by more effectively utilizing the uplink transmitting power, and the uplink transmission performance in the NR system is improved.

It should be noted that the scheme of the present invention is not limited to the scenario in which the NR system and the LTE system perform dual-connection transmission, but may also be applied to the scenario in which dual-connection transmission is performed between other systems, such as NR and GSM, NR and TD-SCDMA, and so on.

The following illustrates an application scenario of an embodiment of the present invention by way of example.

Firstly, under the condition of carrying out dual-connection transmission in an NR system and an LTE system, a base station respectively informs a terminal of maximum transmitting power P in the NR system and the LTE system in a semi-static configuration mode_cmax，NRAnd P_cmax，LTE。

Then, the base station receives the reported information of the terminal, and determines the power headroom of the terminal in the NR system as PH according to the reported information_NR＝P_cmax，NR-P1, and determining the power headroom of the terminal in the LTE system as PH_LTE＝P_cmax，LTE-P2。

Meanwhile, the base station determines that the buffer size of uplink data in the NR system of the terminal is a bits according to the report information, where the buffer size of the uplink data in the LTE system is b bits and the buffer size of the uplink data in the NR system is a bits, where the buffer size includes User Class Identifier (UCI) information of a1 bits and PUSCH transmission information of a2 bits, and the buffer size of the uplink data in the NR system corresponds to the PUSCH transmission information. If the weight coefficient of the UCI information is P and the weight coefficient of the PUSCH transmission information is Q, the buffer value reported by the terminal obtained by the base station in the NR system is X-a 1-P + a 2-Q, and the buffer status information value reported in the LTE system is Y-b-Q.

After obtaining the power headroom and the buffer value, the base station may set a power headroom threshold a of the NR system and a power headroom threshold B of the LTE system, and when the power headroom in the NR system reported by the terminal is smaller than a and the power headroom in the LTE system reported by the terminal is larger than B, the base station compares the buffer states in the LTE system and the NR system.

If the buffer value of the buffer data in the NR system reported by the terminal is a 'and the buffer value of the buffer data in the LTE system is B', the base station notifies the terminal to increase the uplink maximum transmission power of the NR system when a '> B'.

Then, the base station may dynamically indicate a difference between the adjusted uplink maximum transmission power and the current maximum transmission power in the NR system through 2-bit information included in the DCI. For example, if dynamic power adjustment is indicated by 2-bit information (e.g. 10) in DCI scheduling PUSCH transmission information in the NR system, the terminal may be instructed to determine that the power adjustment parameter is 1dB according to bit information "10" in DCI scheduling PUSCH transmission in the NR system, and the uplink maximum transmission power after adjustment by the terminal in the NR system is P_cmax，NR+1dB。

Or, if the power headroom in the NR system reported by the terminal is greater than a and the power headroom in the LTE system reported by the terminal is less than B, if a '< B', the base station may further reduce the uplink maximum transmit power of the NR system.

Example two

As shown in fig. 3, an embodiment of the present invention provides an uplink power control method, where the terminal performs dual connectivity with a wireless communication system NR and a long term evolution system LTE, and a network architecture where the terminal is located may refer to fig. 1. The method can be described as follows:

s51: the terminal receives semi-static power configuration information sent by a base station and configures uplink maximum transmitting power in an NR system and an LTE system according to the power configuration information;

s52: the terminal sends the report information to the base station; the reported information is used for representing the use states of uplink transmitting power in an NR system and an LTE system;

s53: and the terminal receives the indication information fed back by the base station according to the report information and adjusts the uplink maximum transmitting power in the NR system according to the indication information, wherein the indication information is Downlink Control Information (DCI) or high-level signaling.

In the embodiment of the present invention, the power configuration information may be notified to the terminal by the base station in a semi-static configuration manner, so as to configure the uplink maximum transmission power of the terminal in the NR and LTE systems.

The power configuration information may indicate uplink maximum transmission power of the terminal in the NR system and in the LTE system, or a proportionality coefficient of the uplink maximum transmission power of the terminal in the NR system and in the LTE system, that is, a proportion of the uplink maximum transmission power in the NR system and the uplink maximum transmission power in the LTE system respectively occupying the total uplink maximum transmission power of the terminal.

Then, according to different parameters carried in the power configuration information, the process of configuring, by the terminal, the uplink maximum transmission power in the NR system and the LTE system according to the power configuration information may include, but is not limited to, the following two methods:

the method comprises the following steps: and the terminal carries out configuration according to the uplink maximum transmitting power of the terminal in the NR system and the LTE system, which is indicated in the power configuration information. That is, the maximum uplink transmission power of the terminal in the NR system is configured directly according to the power configuration information, such as P_cmax，NRAnd configuring the uplink maximum transmission power, such as P, of the terminal in the LTE system_cmax，LTE。

The method 2 comprises the following steps: and the terminal adjusts the uplink maximum transmitting power according to the proportionality coefficient of the uplink maximum transmitting power of the power in the NR system and the LTE system.

For example, if the proportionality coefficient of the uplink maximum transmission power configured in the power configuration information is L_NR：L_LTEIf the total uplink maximum transmission power of the terminal is 200mW, the terminal may adjust the uplink maximum transmission power in the NR system to P2: 3_cmax，NR80mW, and the terminal may adjust the uplink maximum transmit power in the LTE system to P_cmax，NR＝120mW。

In S52, the reported information may include uplink maximum transmission power and actual uplink transmission power of the terminal in the NR system and the LTE system, and/or a status parameter of the uplink data to be transmitted in the terminal, where the status parameter may be used to characterize a degree of demand of the terminal for the uplink transmission power when transmitting the uplink data to be transmitted.

The state parameter may include a buffer value and/or a QCI requirement value, where the buffer value may be used to represent a buffer amount of the uplink data to be transmitted, and the QCI may be used to represent an importance of the uplink data to be transmitted.

For example, if the uplink data corresponds to k traffic types and the uplink data of each traffic type in the uplink data corresponds to a weight coefficient and a buffer amount, the buffer value in the status parameter may be x1 × b1+ x2 × b2+ … … + xk × bk. Wherein, x b represents the demand degree of the terminal for uplink transmitting power when transmitting uplink data of one service type. Generally speaking, the larger the buffer value is, the larger the uplink transmission power required by the terminal is.

The terminal may report to the base station after determining the power headroom and/or the state parameter of the uplink data to be transmitted.

In S53, the indication information received by the terminal may be DCI or higher layer signaling (e.g., MAC CE). The power control parameter carried in the indication signaling may be a difference between the adjusted uplink maximum transmission power and the current uplink maximum transmission power, or may directly indicate the adjusted uplink maximum transmission power. Then, the terminal may adjust the uplink maximum transmission power of the NR system and/or the LTE system according to the indication information.

If the indication information reuses the TPC information field in the DCI, the DCI may indicate, by adding 1-bit information, whether the TPC information field is used to adjust the actual uplink transmit power of the terminal or the uplink maximum transmit power of the terminal, so that the terminal may quickly know the object targeted for adjustment according to the TPC information.

In practical application, if the indication information is DCI, during adjustment, the terminal may first obtain a power adjustment parameter in the DCI, and then adjust the uplink maximum transmit power in the NR system according to the power adjustment parameter in the uplink data transmission time slot corresponding to the DCI, that is, the adjusted uplink maximum transmit power is only applied to the uplink data transmission time slot corresponding to the DCI. Alternatively, the terminal may also adjust the uplink maximum transmission power in the NR system according to the power adjustment parameter all the time, for example, the power control parameter is valid before determining a new power adjustment parameter, or the adjusted uplink maximum transmission power is valid all the time, and so on.

In the embodiment of the invention, the terminal can configure the uplink maximum transmitting power in the NR system and the LTE system according to the semi-static power configuration information of the base station, further, the power margin in each system and the state parameter of the uplink data to be transmitted are calculated, the power margin and/or the state parameter are reported to the base station, the power adjusting parameter fed back by the base station according to the reported information is obtained, the uplink transmitting power in each system is adjusted according to the power adjusting parameter, and the reasonable utilization of the uplink power in the double-connection transmission by the terminal is improved.

EXAMPLE III

As shown in fig. 4, an uplink power control method according to an embodiment of the present invention is applied to a base station, where the base station is a main base station in a first base station and a second base station in a long term evolution system LTE when a terminal performs dual connectivity with the first base station in a wireless communication system NR and the second base station, for example, the base station may be the main base station in fig. 1. The method can be described as follows.

S30: the base station sends semi-static power configuration information to the terminal, and the power configuration information is used for configuring the minimum guaranteed transmitting power of the terminal in an NR system and the minimum guaranteed transmitting power of the terminal in an LTE system and the proportionality coefficient of the shared power margin.

The minimum guaranteed transmission power may be the minimum transmission power on each system when the terminal is guaranteed to be able to communicate with each system normally in the dual connectivity. For example, the base station semi-statically configures the minimum guaranteed transmission power of the terminal in the NR system through the power configuration information, for example, denoted as P_cmin，NRAnd configuring the minimum guaranteed transmit power of the terminal in the LTE system, e.g. denoted as P_cmin，LTE。

The shared power headroom may refer to a remaining power after a minimum guaranteed power in the NR system and the LTE system is subtracted from a total uplink maximum transmission power supported by the terminal. The power headroom is shared by the NR system and the LTE system, and when shared, the transmission power is allocated according to a scaling factor indicated in the power configuration information transmitted by the base station.

The terminal may share the remaining power between the NR system and the LTE system according to the scaling factor of the shared power headroom notified by the base station after receiving the power configuration information.

Then, the uplink maximum transmission power of the terminal in each system can be determined according to the minimum guaranteed power of the terminal in the NR system and the LTE system and the uplink transmission power shared by the scaling coefficients, that is, the adjusted uplink maximum transmission power of the terminal in the LTE system is the minimum guaranteed transmission power of the terminal in the LTE system plus the power margin times the corresponding scaling coefficients, and the adjusted uplink maximum transmission power of the terminal in the NR system is the minimum guaranteed transmission power of the terminal in the NR system plus the power margin times the corresponding scaling coefficients.

For example, the scaling factor of the shared power headroom in the power configuration information is L_NR：L_LTE0.4:0.6, the power headroom of the current terminal is P_SurplusThen, it can be known that the allocation amount of the power headroom of the terminal on the NR system is: p_NR＝0.4P_SurplusThe allocation amount of the power headroom of the terminal on the LTE system is as follows: p_LTE＝0.6P_Surplus。

Then, after the base station configures the uplink power of the terminal through the power configuration information, it can know the uplink maximum transmission power of the terminal in the NR system, where the uplink maximum transmission power is the sum of the actual uplink transmission power and the power margin shared by the scaling coefficients. In the power limited case, the actual uplink transmit power may be equal to the minimum guaranteed transmit power. Therefore, the maximum uplink transmission power of the terminal in the NR system is P_cmax，NR＝P_cmin，NR+0.4P_SurplusThe maximum uplink transmitting power of the terminal in the NR system is P_cmax，NR＝P_cmin，NR+0.6P_Surplus。

In the embodiment of the invention, the base station does not need the report information of the terminal, and the terminal can adjust the power according to the configuration of the base station under the condition of limited power, so that the implementation mode is convenient and fast, and the utilization of the uplink power of the terminal is improved.

Example four

As shown in fig. 5, an uplink power control method according to an embodiment of the present invention is applied to a terminal, where the terminal performs dual connection with a wireless communication system NR and a long term evolution system LTE, and a network architecture where the terminal is located may refer to fig. 1. The method can be described as follows:

s41: a terminal receives power configuration information sent by a base station;

s42: the terminal determines whether the currently required transmitting power is larger than the maximum transmitting power supported by the terminal;

s43: if the transmitting power required by the terminal is determined to exceed the maximum transmitting power supported by the terminal, the terminal adjusts the power according to the power configuration information;

s44: and if the transmitting power required by the terminal is determined to be less than or equal to the maximum transmitting power supported by the terminal, the terminal determines the uplink transmitting power according to actual needs.

In the embodiment of the present invention, the power configuration information may include related parameters for configuring the uplink maximum transmission power of the terminal in the NR system and in the LTE system. For example, the power configuration information may include a scaling factor configuring minimum guaranteed transmit power and a shared power margin of the terminal in the NR system and in the LTE system. The maximum uplink transmission power of the configured terminal in the NR system, such as P, can be directly provided_cmax，NR，And the maximum uplink transmission power of the terminal in the LTE system, such as P_cmax，LTE. Alternatively, the first and second electrodes may be,

the currently required transmit power of the terminal may be actual uplink transmit power, which may be related to buffer values of uplink data of the terminal in each system and QCI requirement values. The maximum transmit power supported by the terminal may be a current uplink maximum transmit power.

In S13, the terminal may adjust the uplink maximum transmit power in the LTE system and the uplink maximum transmit power in the NR system according to the scaling factor of the shared power headroom in the power configuration information. The adjusted uplink maximum transmission power of the terminal in the LTE system is the minimum guaranteed transmission power of the terminal in the LTE system plus the power margin times the corresponding scaling factor, and the adjusted uplink maximum transmission power of the terminal in the NR system is the minimum guaranteed transmission power of the terminal in the NR system plus the power margin times the corresponding scaling factor.

EXAMPLE five

Based on the same inventive concept, please refer to fig. 6, an embodiment of the present invention provides a base station 20, where the base station 20 may be a main base station in the network architecture shown in fig. 1, and the base station 20 includes a sending module 21, a receiving module 22, and a processing module 23.

The sending module 21 may be configured to send power configuration information to the terminal, where the power configuration information is used to configure uplink maximum transmission power of the terminal in the NR system and in the LTE system;

the receiving module 22 may be configured to receive reporting information sent by the terminal, where the reporting information is used to characterize a use state of uplink transmission power of the terminal in the NR system and the LTE system;

the processing module 23 may be configured to adjust the uplink maximum transmission power of the terminal in the NR system according to the reported information.

Optionally, the reported information includes power margins respectively corresponding to the terminal in the NR system and the LTE system at present and/or a state parameter of uplink data to be transmitted in the terminal; the state parameter is used for representing the degree of demand of the terminal on uplink transmitting power when the terminal transmits the uplink data to be transmitted.

Optionally, the processing module 23 includes:

Wherein the power adjustment parameter is an adjusted uplink maximum transmission power in the NR system, or the power adjustment parameter is a power difference between the adjusted uplink maximum transmission power and a current uplink maximum transmission power in the NR system.

Optionally, if the indication information is the DCI;

the indicating module is configured to send the indicating information to the terminal, and instruct the terminal to adjust the uplink maximum transmission power in the NR system according to the power adjustment parameter in the uplink data transmission timeslot corresponding to the DCI, or instruct the terminal to always adjust the uplink maximum transmission power in the NR system according to the power adjustment parameter.

Optionally, the indication information includes an independent information field in the DCI, or the indication information reuses a transmit power control TPC information field in the DCI.

Optionally, if the indication information reuses the TPC information field in the DCI, the TPC information field is indicated by 1-bit information in the DCI to be used to adjust the actual uplink transmit power of the terminal or to adjust the uplink maximum transmit power of the terminal.

Optionally, the power configuration information includes a proportionality coefficient of uplink maximum transmission power of the terminal in the NR system and in the LTE system.

EXAMPLE six

Based on the same inventive concept, please refer to fig. 7, an embodiment of the present invention provides a terminal 80, which performs dual connection with a wireless communication system NR and a long term evolution system LTE, and the terminal includes a receiving module 81, a transmitting module 82, and an adjusting module 83.

The receiving module 81 is configured to receive semi-static power configuration information sent by a base station, and configure uplink maximum transmission power in the NR system and the LTE system according to the power configuration information;

the sending module 82 is configured to send report information to the base station; the reported information is used for representing the use states of uplink transmission power in the NR system and the LTE system;

the adjusting module 82 is configured to receive indication information fed back by the base station according to the report information, and adjust the uplink maximum transmission power in the NR system according to the indication information, where the indication information is downlink control information DCI or a high-level signaling.

Optionally, the sending module 82 includes:

Optionally, if the indication information is the DCI, the adjusting module 83 may include:

EXAMPLE seven

As shown in fig. 8, an embodiment of the present invention provides a base station 60, where the base station 60 is a main base station of a first base station in a wireless communication system NR and a second base station in a long term evolution system LTE when a terminal performs dual connectivity with the first base station and the second base station, and the base station 60 includes a sending module 61.

The sending module 61 may be configured to send semi-static power configuration information to the terminal, where the power configuration information is used to configure a scaling factor of minimum guaranteed transmit power and a shared power margin of the terminal in the NR system and in the LTE system.

Example eight

As shown in fig. 9, an embodiment of the present invention provides a terminal 70, where the terminal 70 performs dual connectivity with a wireless communication system NR and a long term evolution system LTE, and a network architecture where the terminal 70 is located can be referred to fig. 1. The terminal 70 may include a receiving module 71, a determining module 72, a first processing module 73 and a second processing module 74.

The receiving module 71 is configured to receive power configuration information sent by a base station.

The determining module 72 is configured to determine whether the currently required transmit power is greater than the maximum transmit power supported by the terminal.

The first processing module 73 is configured to, if it is determined that the transmission power required by the terminal exceeds the maximum transmission power supported by the terminal, perform power adjustment according to the power configuration information.

The second processing module 74 is configured to determine the uplink transmission power according to actual needs if it is determined that the transmission power required by the terminal is less than or equal to the maximum transmission power supported by the terminal.

Optionally, the first processing module 73 may be specifically configured to respectively adjust the uplink maximum transmission powers in the LTE system and the NR system according to a scaling factor of a shared power headroom in the power configuration information; the adjusted uplink maximum transmission power of the terminal in the LTE system is the minimum guaranteed transmission power of the terminal in the LTE system plus a power margin times a corresponding scaling factor, and the adjusted uplink maximum transmission power of the terminal in the NR system is the minimum guaranteed transmission power of the terminal in the NR system plus a power margin times a corresponding scaling factor.

Example nine

Referring to fig. 10, the computer apparatus includes a processor 31 and a memory 32, where the processor 31 is configured to implement the steps of the uplink power control method provided in the first to third embodiments of the present invention when executing the computer program stored in the memory 32.

Optionally, the processor 31 may specifically be a central processing unit, an Application Specific Integrated Circuit (ASIC), one or more Integrated circuits for controlling program execution, a hardware Circuit developed by using a Field Programmable Gate Array (FPGA), or a baseband processor.

Optionally, the processor 31 may include at least one processing core.

Optionally, the electronic device further includes a Memory 32, and the Memory 32 may include a Read Only Memory (ROM), a Random Access Memory (RAM), and a disk Memory. The memory 32 is used for storing data required by the processor 31 in operation. The number of the memory 32 is one or more.

Example ten

The embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the steps of the network traffic monitoring method according to an embodiment of the present invention may be implemented.

In the embodiments of the present invention, it should be understood that the disclosed network traffic monitoring method and network traffic monitoring system may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical or other form.

The functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be an independent physical module.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the technical solutions of the embodiments of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device, such as a personal computer, a server, or a network device, or a Processor (Processor), to execute all or part of the steps of the methods of the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a Universal Serial Bus flash drive (USB), a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, and an optical disk.

The above embodiments are only used to describe the technical solutions of the present invention in detail, but the above embodiments are only used to help understanding the method of the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention. Variations or substitutions that may be readily apparent to one skilled in the art are intended to be included within the scope of the embodiments of the present invention.

Claims

1. An uplink power control method is applied to a base station, wherein the base station is a main base station of a first base station and a second base station in a long term evolution system (LTE) when a terminal performs dual connectivity with the first base station in a wireless communication system (NR) and the second base station, and the method comprises:

the base station sends semi-static power configuration information to the terminal, wherein the power configuration information is used for configuring uplink maximum transmitting power of the terminal in the NR system and the LTE system;

2. The method of claim 1, wherein the reporting information includes power headroom respectively corresponding to the terminal in the NR system and the LTE system at present and/or a status parameter of uplink data to be transmitted in the terminal; the state parameter is used for representing the degree of demand of the terminal on uplink transmitting power when the terminal transmits the uplink data to be transmitted.

3. The method of claim 1, wherein the power adjustment parameter is an adjusted uplink maximum transmit power in the NR system, or wherein the power adjustment parameter is a power difference between a current uplink maximum transmit power in the NR system and the adjusted uplink maximum transmit power.

4. The method of claim 1 or 3, wherein if the indication information is the DCI;

5. The method of claim 4, wherein the indication information includes a separate information field in the DCI or the indication information reuses a Transmit Power Control (TPC) information field in the DCI.

6. The method of claim 5, wherein if the indication information reuses a TPC information field in the DCI, indicating the TPC information field through 1-bit information in the DCI for adjusting an actual uplink transmission power of the terminal or for adjusting an uplink maximum transmission power of the terminal.

7. The method of claim 1, wherein the power configuration information comprises a scaling factor of uplink maximum transmit power of the terminal in the NR system and in the LTE system.

8. An uplink power control method is applied to a terminal, and the terminal performs dual connection with a wireless communication system (NR) and a Long Term Evolution (LTE) system, and is characterized by comprising the following steps:

the terminal receives indication information fed back by the base station according to the report information, and adjusts the uplink maximum transmitting power in the NR system according to the indication information, wherein the indication information is Downlink Control Information (DCI) or a high-level signaling; the indication information is generated by the base station according to a power adjustment parameter for adjusting the uplink maximum transmission power of the terminal in the NR system, and the power adjustment parameter is determined by the base station according to the report information.

9. The method of claim 8, wherein the terminal sending reporting information to the base station comprises:

10. The method of claim 8, wherein if the indication information is the DCI;

11. A base station, which is a main base station of a first base station and a second base station in a long term evolution system LTE when a terminal performs dual connectivity with the first base station in a wireless communication system NR and the second base station, the base station comprising:

the processing module is used for adjusting the uplink maximum transmitting power of the terminal in the NR system according to the reported information;

wherein the processing module comprises:

12. The base station of claim 11, wherein the reporting information includes power headroom respectively corresponding to the terminal in the NR system and the LTE system at present and/or a status parameter of uplink data to be transmitted in the terminal; the state parameter is used for representing the degree of demand of the terminal on uplink transmitting power when the terminal transmits the uplink data to be transmitted.

13. The base station of claim 12, wherein the power adjustment parameter is an adjusted uplink maximum transmission power in the NR system, or wherein the power adjustment parameter is a power difference between the adjusted uplink maximum transmission power and a current uplink maximum transmission power in the NR system.

14. The base station of claim 11 or 13, wherein if the indication information is the DCI;

15. The base station of claim 14, wherein the indication information includes a separate information field in the DCI or the indication information reuses a transmit power control, TPC, information field in the DCI.

16. The base station of claim 15, wherein if the indication information reuses a TPC information field in the DCI, the TPC information field is indicated by 1-bit information in the DCI for adjusting an actual uplink transmit power of the terminal or for adjusting an uplink maximum transmit power of the terminal.

17. The base station of claim 11, wherein the power configuration information includes a scaling factor of uplink maximum transmit power of the terminal in the NR system and in the LTE system.

18. A terminal in dual connectivity with a wireless communication system NR and a long term evolution system LTE, the terminal comprising:

an adjusting module, configured to receive indication information fed back by the base station according to the report information, and adjust the uplink maximum transmission power in the NR system according to the indication information, where the indication information is downlink control information DCI or a high-level signaling, where the indication information is generated by the base station according to a power adjustment parameter used to adjust the uplink maximum transmission power of the terminal in the NR system, and the power adjustment parameter is determined by the base station according to the report information.

19. The terminal of claim 18, wherein the transmitting module comprises:

20. The terminal of claim 19, wherein if the indication information is the DCI; the adjustment module includes:

21. A computer arrangement, characterized in that the computer arrangement comprises a processor for implementing the method according to any one of claims 1-10 when executing a computer program stored in a memory.

22. A computer-readable storage medium having stored thereon computer instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-10.