CN110536393B

CN110536393B - Power control method, device and computer readable storage medium

Info

Publication number: CN110536393B
Application number: CN201810911105.0A
Authority: CN
Inventors: 姚珂; 高波; 蒋创新; 鲁照华
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2018-08-10
Filing date: 2018-08-10
Publication date: 2022-07-15
Anticipated expiration: 2038-08-10
Also published as: WO2020030121A1; CN110536393A

Abstract

The invention discloses a power control method, a device and a computer readable storage medium, which relate to the technical field of communication and are suitable for a transmitting power distribution process of uplink transmission in an NR DC system, and the method comprises the following specific steps: acquiring power control parameters, wherein the power control parameters comprise uplink transmission required power in a first cell group CG and uplink transmission required power in a second CG, and at least one of a high power ratio of the first CG, a low power ratio of the first CG, a high power ratio of the second CG and a low power ratio of the second CG; and determining the sending power of uplink transmission in the first CG according to the power control parameter. The embodiment of the invention provides a power control scheme aiming at uplink transmission in an NR DC system, and achieves positive technical effects.

Description

Power control method, device and computer readable storage medium

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a power control method, apparatus, and computer readable storage medium.

Background

With the rapid development of wireless communication technology, New generation wireless communication (NR) technology is produced. At present, NR technology enters a formulation stage, and as a fifth generation mobile communication system, the NR system needs to support a plurality of different types of application scenarios, and also needs to support a conventional frequency band, a new high frequency band, and a beam mode at the same time.

In a Dual Connectivity (DC) scenario of an NR system, a terminal communicates with a base station through two connections. The two connections may respectively support carrier aggregation, that is, each connection respectively includes a plurality of Component Cells (CC), and the plurality of Component cells of each connection are referred to as a Cell Group (CG).

In the NR DC system, the power of uplink transmission is related to many factors, such as path loss, target received power, maximum transmit power, amount of closed loop power adjustment, bandwidth of transmission, rate of transmission, and the like. Moreover, in the NR DC system, it is difficult to align a plurality of uplink transmissions in two CGs completely, and when allocating power to each uplink transmission, it is difficult to predict whether there will be a transmission after that, so power sharing of the plurality of uplink transmissions is complicated.

In the prior art, there is no power control scheme for uplink transmission in the NR DC system.

Disclosure of Invention

The embodiment of the invention provides a power control method, a power control device and a computer readable storage medium, and provides a power control scheme aiming at uplink transmission in an NR DC system.

In a first aspect, an embodiment of the present invention provides a power control method, where the method includes:

Acquiring power control parameters, wherein the power control parameters comprise uplink transmission required power in a first cell group CG and uplink transmission required power in a second CG, and at least one of a high power ratio of the first CG, a low power ratio of the first CG, a high power ratio of the second CG and a low power ratio of the second CG;

and determining the sending power of uplink transmission in the first CG according to the power control parameter.

As to the above-mentioned aspect and any possible implementation manner, further providing an implementation manner that determines the transmission power of the uplink transmission in the first CG according to the power control parameter, including:

when it cannot be determined whether uplink transmission exists in the second CG during transmission of target uplink transmission in the first CG, determining that the ratio of the transmission power of the uplink transmission in the first CG to the maximum transmission power is: 1-low power fraction of the second CG.

in a case where it is determined that there is no uplink transmission in the second CG during transmission of a target uplink transmission in the first CG, it is determined that a ratio of a transmission power of the uplink transmission in the first CG occupying a maximum transmission power is 1 at the maximum.

and under the condition that the required power of the uplink transmission in the first CG is larger than the power shown by the high power ratio of the first CG and the required power of the uplink transmission in the second CG is larger than the power shown by the high power ratio of the second CG, determining that the proportion of the maximum transmission power occupied by the transmission power of the uplink transmission in the first CG is the high power ratio of the first CG and determining that the proportion of the maximum transmission power occupied by the transmission power of the uplink transmission in the second CG is the high power ratio of the second CG.

As to the above-mentioned aspect and any possible implementation manner, further providing an implementation manner, where the determining, according to the power control parameter, the transmit power of the uplink transmission in the first CG includes:

when the required power of the uplink transmission in the first CG is greater than the power indicated by the high power proportion of the first CG, and the required power of the uplink transmission in the second CG is less than the power indicated by the high power proportion of the second CG, determining that the maximum ratio of the transmission power of the uplink transmission in the first CG to the maximum transmission power is: 1-max (the ratio of the required power for uplink transmission to the maximum transmission power in the second CG, and the ratio of the low power in the second CG).

As with the above-described aspect and any possible implementation, there is further provided an implementation that a sum of the high power fraction of the first CG and the high power fraction of the second CG is less than or equal to 1.

As for the above aspect and any possible implementation manner, an implementation manner is further provided, where a high power ratio of the first CG is greater than or equal to a low power ratio of the first CG, and a high power ratio of the second CG is greater than or equal to a low power ratio of the second CG.

In the above-described aspect and any possible implementation manner, an implementation manner is further provided, where the power control parameter further includes a sub-required power for each uplink transmission in the first CG and a sub-required power for each uplink transmission in the second CG.

As with the above-described aspects and any possible implementations, there is further provided an implementation, where the method further includes:

and when the required power of the uplink transmission in the first CG is less than or equal to the sending power of the uplink transmission in the first CG, determining the sub-required power of the target uplink transmission in the first CG as the sub-sending power of the target uplink transmission in the first CG.

And when the required power of the uplink transmission in the first CG is greater than the sending power of the uplink transmission in the first CG, allocating sub-sending power for each uplink transmission in the first CG according to the priority and/or sub-sending power determination time of each uplink transmission in the first CG.

As to the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, where allocating sub-transmission power to each uplink transmission in the first CG according to the priority of each uplink transmission in the first CG includes:

if there is a high priority uplink transmission overlapping with a time domain of a target uplink transmission in the first CG, first allocating sub-transmission power of the high priority uplink transmission.

As to the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, where allocating sub-transmission power to each uplink transmission in the first CG according to a priority of each uplink transmission in the first CG, further includes:

after the sub-transmission power of the high-priority uplink transmission is allocated, if no transmission power of the uplink transmission in the first CG remains, determining that the sub-transmission power of the target uplink transmission in the first CG is 0.

After the sub-sending power of the high-priority uplink transmission is distributed, if the sending power of the uplink transmission in the first CG is remained and the uplink transmission with the same priority which is overlapped with the time domain of the target uplink transmission in the first CG exists, distributing the sub-sending power of the target uplink transmission in the first CG according to the situation that the sub-sending power of the uplink transmission with the same priority is determined.

As to the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, where allocating, according to the sub-transmission power determination condition of the uplink transmission with equal priority, the sub-transmission power of the target uplink transmission in the first CG includes:

when the remaining power of the uplink transmission power in the first CG is not enough to transmit all uplink transmissions of the same priority, if the sub-transmission power of the uplink transmission of the same priority is determined, allocating the sub-transmission power of the target uplink transmission in the first CG on the premise of ensuring that the sub-transmission power of the uplink transmission of the same priority is allocated;

when the remaining power of the uplink transmission power in the first CG is not enough to transmit all uplink transmissions of equal priority, if the sub-transmission power of the uplink transmissions of equal priority is not determined, proportionally reducing the sub-transmission power of the target uplink transmission in the first CG and the sub-transmission power of the uplink transmissions of equal priority to finally allocate the sub-transmission power of the target uplink transmission in the first CG, or determining the sub-transmission power of the uplink transmission of equal priority to be 0, and finally allocating the sub-transmission power of the target uplink transmission in the first CG.

when the remaining power of the uplink transmission power in the first CG is not enough to transmit all uplink transmissions of equal priority, if the sub-transmission power of the uplink transmissions of equal priority is not determined, first allocating the uplink transmission of equal priority that occupies the shortest time and/or has the earliest transmission start time and/or has already started transmission and occupies the lowest proportion of the entire transmission time of local scheduling.

and determining the low power occupation ratio of the second CG according to the attribute parameters of the target uplink transmission in the first CG, wherein the attribute parameters of the target uplink transmission in the first CG comprise at least one of transmission duration, transmission service type, transmission priority and channel priority.

Determining sub-transmission power of target uplink transmission in the first CG at or before a designated time;

the appointed time is determined according to the starting time of the target uplink transmission in the first CG, or according to the sending time of the authorization information of the target uplink transmission in the first CG, or according to the receiving time of the authorization information of the target uplink transmission in the first CG.

The above-mentioned aspects and any possible implementation manners further provide an implementation manner, where the specified time is a time when a starting time of the target uplink transmission in the first CG is shifted forward by a specified time difference, or the specified time is a time when a sending time of the grant information of the target uplink transmission in the first CG is shifted backward by the specified time difference, or a receiving time of the grant information of the target uplink transmission in the first CG is shifted backward by the specified time difference.

The above-described aspects and any possible implementations further provide an implementation in which the specified time difference includes at least one of a predefined value, a configured cell-specific value, a configured CG-specific value, a sender-specific value of a target uplink transmission in the configured CG, an amount of time determined by a scheduling processing delay K2 of the uplink transmission, and an amount of time determined by a minimum processing delay N2 parameter of the uplink transmission.

and after the appointed time, updating the sub-required power of the target uplink transmission in the first CG to be the determined sub-sending power value of the target uplink transmission in the first CG.

The above aspects and any possible implementations further provide an implementation in which the priority includes a special priority.

As with the above-described aspects and any possible implementations, there is further provided an implementation in which the transmissions having a particular priority comprise: the service type is at least one of transmission of ultra-high-reliability ultra-low-delay communication URLLC, transmission of control class information of URLLC service, transmission marked as a special scheduling type, transmission marked as special scheduling type control class information, transmission marked as being capable of preempting required power of uplink transmission in other CG and physical random access channel PRACH.

The above-mentioned aspects and any possible implementations further provide an implementation in which the special priority is higher than the priority of a physical uplink control channel, PUCCH, carrying hybrid automatic repeat request acknowledgement, HARQ-ACK, information and/or traffic router, SR, information; or, in the special priorities, the priority of the PRACH is higher than the transmission priority of the other special priorities; or, the priority of the transmission of the master CG is higher than that of the transmission of the slave CG in the equal priority.

As to the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, where allocating sub-transmission power to each uplink transmission in the first CG according to the determined time of the priority and/or the sub-transmission power of each uplink transmission in the first CG includes:

if a plurality of uplink transmissions which are overlapped with a target uplink transmission time domain in the first CG exist, at least one item is selected from first to last according to the following sequence to determine or reserve the sub-transmitting power of each uplink transmission in the first CG:

(1) distributing sub-sending power of uplink transmission with special priority according to sub-required power of uplink transmission with special priority;

(2) allocating the sub-transmission power of the uplink transmission for which the sub-transmission power has been determined;

(3) according to the priority from top to bottom, distributing a plurality of uplink transmissions which determine the sub-transmitting power simultaneously with the target uplink transmission in the first CG;

(4) allocating sub-transmission powers of a plurality of uplink transmissions having the same priority and simultaneously determining the sub-transmission powers according to at least one of the following manners: 1) the transmission time is from short to long, 2) the transmission starting time is from early to late, 3) the sub-transmission power of the plurality of uplink transmissions is reduced in an equal proportion, 4) the sub-transmission power of part of the uplink transmissions in the plurality of uplink transmissions is reduced in an equal proportion, and the sub-transmission power of the rest uplink transmissions is determined to be 0.

As to the above-mentioned aspect and any possible implementation manner, further providing an implementation manner, where allocating sub-transmission power for each uplink transmission in the first CG according to the priority of each uplink transmission in the first CG and/or the power determination time of each uplink transmission in the first CG includes:

if a plurality of uplink transmissions which are overlapped with a target uplink transmission in the first CG in a time domain exist, at least one item is selected from first to last according to the following sequence to determine or reserve the sub-transmitting power of each uplink transmission in the first CG:

(3) distributing sub-transmitting power of a plurality of uplink transmissions of which the sub-transmitting power is not determined according to the priority from top to bottom;

(4) allocating the sub-transmission power of a plurality of uplink transmissions with the same priority and simultaneously determining the sub-transmission power according to at least one of the following modes: 1) the transmission time is from short to long, 2) the transmission starting time is from early to late, 3) the sub-transmission power of the plurality of uplink transmissions is reduced in an equal proportion, 4) the sub-transmission power of part of the plurality of uplink transmissions is reduced in an equal proportion, and the sub-transmission power of the rest uplink transmissions is determined to be 0.

The aspects and any possible implementations described above, further provide an implementation,

when the target uplink transmission in the first CG belongs to transmission with special priority and the first CG is the master CG, the ratio of the maximum sub-transmission power allowed by the target uplink transmission in the first CG to the maximum transmission power is 1.

when the target uplink transmission in the first CG belongs to transmission with special priority and the first CG is the auxiliary CG, the ratio of the maximum sub-transmission power allowed by the target uplink transmission in the first CG to the maximum transmission power is as follows: 1-the proportion of power occupied by uplink transmissions of a particular priority in the master CG.

In a second aspect, an embodiment of the present invention provides a power control method, where the method includes:

configuring a first power control parameter and a second power control parameter, wherein the first power control parameter comprises at least one of a high power ratio of a first CG, a low power ratio of the first CG, a high power ratio of a second CG and a low power ratio of the second CG; the second power control parameter comprises information transmitted in an uplink in the first CG cell group and information transmitted in an uplink in the second CG;

Transmitting the first power control parameter and the second control parameter;

the information transmitted upstream in the first cell group CG is used for determining the required power transmitted upstream in the first CG, and the information transmitted upstream in the second CG is used for determining the required power transmitted upstream in the second CG.

In the above-described aspect and any possible implementation manner, an implementation manner is further provided, where the second power control parameter further includes information for determining a sub-required power for each uplink transmission in the first CG and information for determining a sub-required power for each uplink transmission in the second CG.

configuring a designated time so that a terminal determines the sub-transmission power of target uplink transmission in the first CG at or before the designated time;

In a third aspect, an embodiment of the present invention provides a power control apparatus, where the apparatus includes:

an obtaining unit, configured to obtain a power control parameter, where the power control parameter includes a required power for uplink transmission in a first cell group CG and a required power for uplink transmission in a second CG, and at least one of a high power ratio of the first CG, a low power ratio of the first CG, a high power ratio of the second CG, and a low power ratio of the second CG;

A first determining unit, configured to determine, according to the power control parameter, a transmit power of uplink transmission in the first CG.

As for the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, where the first determining unit includes:

a first determining module, configured to, when it cannot be determined whether there is uplink transmission in the second CG during transmission of target uplink transmission in the first CG, determine that a ratio of transmission power of uplink transmission in the first CG to a maximum transmission power is: 1-low power fraction of the second CG.

a second determining module, configured to determine that a ratio of the uplink transmission in the first CG to the maximum transmission power is at most 1, when it is determined that there is no uplink transmission in the second CG during transmission of the target uplink transmission in the first CG.

a third determining module, configured to determine, when required power of uplink transmission in the first CG is greater than power indicated by the high power proportion of the first CG and required power of uplink transmission in the second CG is greater than power indicated by the high power proportion of the second CG, that a proportion of maximum transmission power occupied by transmission power of uplink transmission in the first CG is the high power proportion of the first CG, and that a proportion of maximum transmission power occupied by transmission power of uplink transmission in the second CG is the high power proportion of the second CG.

a fourth determining module, configured to determine that, when required power of uplink transmission in the first CG is greater than power indicated by the high power proportion of the first CG, and required power of uplink transmission in the second CG is less than power indicated by the high power proportion of the second CG, a maximum ratio of transmission power of uplink transmission in the first CG to maximum transmission power is: 1-max (the ratio of the required power for uplink transmission to the maximum transmission power in the second CG, and the ratio of the low power in the second CG).

In accordance with the foregoing aspect and any possible implementation manner, there is further provided an implementation manner, where the power control parameter further includes a sub-required power of each uplink transmission in the first CG and a sub-required power of each uplink transmission in the second CG.

As with the above-described aspects and any possible implementations, there is further provided an implementation, where the apparatus further includes:

a second determining unit, configured to determine, when the required power for uplink transmission in the first CG is less than or equal to the transmit power for uplink transmission in the first CG, a sub-required power for target uplink transmission in the first CG as a sub-transmit power for target uplink transmission in the first CG.

The above-described aspects and any possible implementations further provide an implementation, where the apparatus further includes:

and the allocating unit is configured to allocate sub-transmission power to each uplink transmission in the first CG at a time determined according to the priority and/or sub-transmission power of each uplink transmission in the first CG when the required power of the uplink transmission in the first CG is greater than the transmission power of the uplink transmission in the first CG.

The above-described aspect and any possible implementation further provide an implementation, where the allocation unit is specifically configured to:

As to the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, where the allocating unit is specifically configured to:

after the sub-sending power of the high-priority uplink transmission is allocated, if the sending power of the uplink transmission in the first CG is remained and the same-priority uplink transmission which is overlapped with the target uplink transmission in the first CG in time domain exists, allocating the sub-sending power of the target uplink transmission in the first CG according to the condition that the sub-sending power of the same-priority uplink transmission is determined.

a third determining unit, configured to determine a low power fraction of the second CG according to an attribute parameter of target uplink transmission in the first CG, where the attribute parameter of target uplink transmission in the first CG includes at least one of transmission duration, transmission service type, transmission priority, and channel priority.

In the aspect and any possible implementation manner described above, there is further provided an implementation manner that, at or before a specified time, the sub-transmission power of the target uplink transmission in the first CG is determined;

The foregoing aspects and any possible implementations further provide an implementation, where the specified time is a time at which a start time of the target uplink transmission in the first CG is shifted forward by a specified time difference, or the specified time is a time at which a sending time of the grant information of the target uplink transmission in the first CG is shifted backward by the specified time difference, or a time at which a receiving time of the grant information of the target uplink transmission in the first CG is shifted backward by the specified time difference.

and the updating unit is used for updating the sub-required power of the target uplink transmission in the first CG to be the determined sub-sending power value of the target uplink transmission in the first CG after the appointed time.

(3) according to the priority from top to bottom, distributing a plurality of uplink transmissions which determine the sub-transmission power simultaneously with the target uplink transmission in the first CG;

As to the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, when the destination uplink transmission in the first CG belongs to a transmission of a special priority, and the first CG is a master CG, a ratio of a maximum sub-transmission power allowed for the destination uplink transmission in the first CG to a maximum transmission power is 1.

As to the above-mentioned aspect and any possible implementation manner, there is further provided an implementation manner, when the target uplink transmission in the first CG belongs to a transmission with a special priority, and the first CG is an auxiliary CG, a ratio of a maximum sub-transmission power allowed for the target uplink transmission in the first CG to a maximum transmission power is: 1-the proportion of power occupied by uplink transmissions of a particular priority in the master CG.

In a fourth aspect, an embodiment of the present invention provides a power control apparatus, where the apparatus includes:

a first configuration unit, configured to configure a first power control parameter and a second power control parameter, where the first power control parameter includes at least one of a high power ratio of a first CG, a low power ratio of the first CG, a high power ratio of a second CG, and a low power ratio of the second CG; the second power control parameter comprises information transmitted in an uplink in the first CG cell group and information transmitted in an uplink in the second CG;

A transmitting unit, configured to transmit the first power control parameter and the second control parameter;

a second configuration unit, configured to configure a designated time, so that a terminal determines, at or before the designated time, a sub-transmission power of a target uplink transmission in the first CG;

In a fifth aspect, an embodiment of the present invention provides a power control apparatus, where the power control apparatus includes: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method as described in any of the aspects and any possible implementation.

In a sixth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method according to any one of the above aspects and any possible implementation manner.

The embodiment of the invention provides a power control method, a device and a computer readable storage medium, wherein the transmission power of uplink transmission in a first CG is determined through at least one power parameter of the required power of uplink transmission in a first cell group CG, the high power ratio of the first CG, the low power ratio of the first CG, the required power of uplink transmission in a second CG, the high power ratio of the second CG and the low power ratio of the second CG. The embodiment of the invention provides a power control scheme aiming at uplink transmission in an NR DC system, and achieves positive technical effects.

The above description is only an overview of the technical solutions of the present invention, and the present invention can be implemented in accordance with the content of the description so as to make the technical means of the present invention more clearly understood, and the above and other objects, features, and advantages of the present invention will be more clearly understood.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a flowchart of a power control method according to an embodiment of the present invention;

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

FIG. 3 is a flow chart of another power control method according to an embodiment of the present invention;

FIG. 4 is a flow chart of another power control method according to an embodiment of the present invention;

FIG. 5 is a flow chart of another power control method according to an embodiment of the present invention;

FIG. 6 is a flow chart of another power control method according to an embodiment of the present invention;

FIG. 7 is a flow chart of another power control method according to an embodiment of the present invention;

fig. 8 is a block diagram of a power control apparatus according to an embodiment of the present invention;

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

fig. 10 is a block diagram of a power control apparatus according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

An embodiment of the present invention provides a power control method, which is applied to a terminal in a transmission power allocation process of uplink transmission in an NR DC system, and as shown in fig. 1, the method includes the following specific steps:

s101, obtaining a power control parameter, wherein the power control parameter comprises uplink transmission required power in a first cell group CG and uplink transmission required power in a second CG, and at least one of a high power ratio of the first CG, a low power ratio of the first CG, a high power ratio of the second CG and a low power ratio of the second CG.

One of the first CG and the second CG may be a Master Cell Group (MCG) and the other may be a Secondary Cell Group (SCG). Note that, here, the Cell may be replaced by a Carrier (Carrier).

In a possible implementation manner, the high power ratio and the low power ratio of the first CG and the second CG may be configured by the base station and then transmitted to a terminal (User Equipment, UE), and specifically may be configured to the terminal through a Radio Resource Control (RRC) signaling. In another possible implementation manner, the required power for uplink transmission in the first cell group CG and the required power for uplink transmission in the second CG are determined by the base station sending information (such as scheduling information or static signaling information) for uplink transmission to the terminal, and the terminal determining the required power for uplink transmission in the first CG and the second CG according to the information for uplink transmission.

Specifically, the sum of the high power ratio of the first CG and the high power ratio of the second CG is less than or equal to 1.

In one possible implementation, the high power fraction of the first CG is greater than or equal to the low power fraction of the first CG. In another possible implementation, the high power fraction of the second CG is greater than or equal to the low power fraction of the second CG.

For example, the high power fraction of the first CG is 60%, and the high power fraction of the second CG is 40%; the low power ratio of the second CG is 30%, and the low power ratio of the second CG is 25%.

In one particular embodiment, the low power fraction may also be configured as 0. For example, a scenario satisfying the following conditions:

1) the first CG and the second CG are synchronous, namely the first CG and the second CG meet the preset synchronization requirement;

2) the scheduling interval between the first CG and the second CG is consistent, for example, 4 subframes are provided between UL grant (Uplink grant) information and PUSCH (Physical Uplink Shared Channel);

3) the first CG and the second CG do not support bursty traffic, such as URLLC (Ultra Reliable & Low Latency Communication), for example;

4) the symbols/slots of the CCs in the first CG and the second CG are of the same length.

And S102, determining the sending power of the uplink transmission in the first CG according to the power control parameter.

In this embodiment, the high power duty ratio is mainly used as a basis for determining the transmission power that each CG can occupy when the sum of the required powers of two CGs is greater than the maximum transmission power. The low power duty ratio is mainly used for reserving certain transmission power for uplink transmission which may exist in another CG when the sub-transmission power is determined for the target uplink transmission in one CG and whether the uplink transmission exists in the other CG in the transmission period of the target uplink transmission cannot be determined.

The uplink transmission refers to occupying a specific channel resource to transmit corresponding information, for example, 4 OFDM (Orthogonal Frequency division multiplexing) symbols occupying a PUSCH are required to transmit one data packet, and the PUSCH of the 4 symbols is referred to as a PUSCH transmission. Similarly, there are also PUCCH (Physical Uplink Control Channel) transmission, SRS (Sounding Reference Signal) transmission, PRACH (Physical Random Access Channel) transmission, as well as long PUCCH transmission, short PUCCH transmission, long PUSCH transmission, short PUSCH transmission, SRS transmission of different classes, and the like.

In the power control method provided in the above embodiment of the present invention, the transmission power of uplink transmission in the first CG is determined according to at least one power parameter of the required power of uplink transmission in the first cell group CG, the high power duty ratio of the first CG, the low power duty ratio of the first CG, the required power of uplink transmission in the second CG, the high power duty ratio of the second CG, and the low power duty ratio of the second CG. The embodiment of the invention provides a power control scheme aiming at uplink transmission in an NR DC system, and achieves positive technical effects.

It should be noted that, in the embodiments of the present invention, except for the special indication, the symbols all refer to OFDM symbols

Further, with reference to the foregoing method flow, another possible implementation manner of the embodiment of the present invention provides, for implementation of step S102, four implementation manners for determining the transmission power of uplink transmission in the first CG based on two parameters, namely, a high power ratio and a low power ratio.

In a first implementation manner, when the power control parameter includes a low power duty ratio of uplink transmission in the second CG, as shown in fig. 2, step S102 includes:

s1021, when it cannot be determined whether there is uplink transmission in the second CG during the transmission of the target uplink transmission in the first CG, determining that a ratio of the uplink transmission power in the first CG to the maximum transmission power is: 1-low power fraction of the second CG.

In a second implementation manner, as shown in fig. 3, step S102 includes:

s1022, when it is determined that there is no uplink transmission in the second CG during the transmission of the target uplink transmission in the first CG, it is determined that a ratio of the transmission power of the uplink transmission in the first CG to the maximum transmission power is 1 at most.

In a third implementation manner, when the power control parameter includes a required power of uplink transmission in the first cell group CG, a high power fraction of the first CG, a required power of uplink transmission in the second CG, and a high power fraction of the second CG, as shown in fig. 4, step S102 includes:

S1023, when the required power of uplink transmission in the first CG is greater than the power indicated by the high power proportion of the first CG, and the required power of uplink transmission in the second CG is greater than the power indicated by the high power proportion of the second CG, determining that the ratio of the maximum transmission power occupied by the transmission power of uplink transmission in the first CG is the high power proportion of the first CG, and determining that the ratio of the maximum transmission power occupied by the transmission power of uplink transmission in the second CG is the high power proportion of the second CG.

In a fourth implementation manner, when the power control parameter includes a required power of uplink transmission in the first cell group CG, a high power ratio of the first CG, a required power of uplink transmission in the second CG, a high power ratio of the second CG, and a low power ratio of the second CG, as shown in fig. 5, step S102 includes:

s1024, when the required power of the uplink transmission in the first CG is greater than the power indicated by the high power proportion of the first CG, and the required power of the uplink transmission in the second CG is less than the power indicated by the high power proportion of the second CG, determining that the maximum ratio of the maximum transmission power occupied by the transmission power of the uplink transmission in the first CG is: 1-max (the ratio of the required power for uplink transmission to the maximum transmission power in the second CG, and the ratio of the low power in the second CG).

It should be noted that max (x, y) means the maximum value of the values x and y, for example, where max (the ratio of the required power for uplink transmission in the second CG to the maximum transmission power, and the low power ratio of the second CG) refers to the maximum one of the two parameters, i.e., the ratio of the required power for uplink transmission in the second CG to the maximum transmission power, and the low power ratio of the second CG.

The above four implementations provide specific implementation schemes for determining the transmission power of the uplink transmission in the first CG. Here, the transmission power of the uplink transmission in the first CG is a sum of transmission powers of all uplink transmissions in the first CG.

Further, with reference to the foregoing method flow, in the four implementation manners, the low power ratio of the second CG is determined according to an attribute parameter of the target uplink transmission in the first CG, where the attribute parameter of the target uplink transmission in the first CG includes at least one of transmission duration, transmission service type, transmission priority, and channel/signal priority.

The low power occupation ratio of the second CG is proportional to the transmission time length of the target uplink transmission in the first CG, that is, the longer uplink transmission in the first CG needs to reserve a larger transmission power for the uplink transmission in the second CG, that is, the low power occupation ratio of the second CG is larger.

It should be noted that, when considering that the transmission power is reserved for the uplink transmission possibly existing in the second CG, the URLLC is allowed to occupy more transmission power of the second CG than the eMBB (enhanced Mobile Broadband), that is, the low power occupation ratio of the second CG is small due to the high-priority traffic.

It should be noted that, when considering that the transmission power is reserved for the uplink transmission possibly existing in the second CG, the high-priority channel/signal is allowed to occupy more transmission power of the second CG than the low-priority channel/signal, that is, the high-priority channel/signal makes the low-power occupation ratio of the second CG smaller.

It is further noted that, when the UE transmits the uplink transmission, a certain transmit power needs to be occupied, and the transmit power cannot exceed the limit of the maximum transmit power. For a plurality of uplink transmissions with a number greater than 1, when time domain overlapping occurs, a condition that the sum of the powers of the plurality of uplink transmissions is not greater than the maximum transmit power needs to be satisfied. The time domain overlapping may refer to that multiple uplink transmissions share a period of time in whole or in part, including but not limited to the following multiplexing modes: frequency division multiplexing, code division multiplexing, space division multiplexing.

Further, in combination with the foregoing method flow, the power control parameter further includes a sub-required power for each uplink transmission in the first CG and a sub-required power for each uplink transmission in the second CG. It should be noted that the sub required power of each uplink transmission herein refers to the required power of each uplink transmission, and is referred to as sub required power for distinguishing from the sum of the required powers of all uplink transmissions (i.e., the required power of uplink transmission in step S101), and similar explanations are made for the sub transmission power hereinafter.

Likewise, the information for determining the sub-required power of each uplink transmission in the first CG and the information for determining the sub-required power of each uplink transmission in the second CG still have the base station configured to the UE.

Further, with reference to the foregoing method flows, when the required power for uplink transmission in the first CG is less than or equal to the transmission power for uplink transmission in the first CG, another possible implementation manner of the embodiment of the present invention provides the following method flows for determining the sub-transmission power for target uplink transmission in the first CG, and after step S102, as shown in fig. 6, the method flows include:

s103, determining the sub-required power of the target uplink transmission in the first CG as the sub-sending power of the target uplink transmission in the first CG.

Further, with reference to the foregoing method flow, perhaps when the required power of the uplink transmission in the first CG is greater than the transmission power of the uplink transmission in the first CG, that is, when the total power of all uplink transmissions in the first CG is not enough to be allocated, another possible implementation manner of the embodiment of the present invention takes the priority to which each uplink transmission belongs as a reference attribute, and the determination of the sub-transmission power of the target uplink transmission in the first CG further provides the following method flow, which is executed after step S102, as shown in fig. 7, and includes:

And S104, distributing sub-transmitting power for each uplink transmission in the first CG according to the priority of each uplink transmission in the first CG.

The specific implementation process of step S104 may include the following detailed steps:

and S1041, if there is a high priority uplink transmission which is overlapped with a time domain of the target uplink transmission in the first CG, firstly allocating sub-transmitting power of the high priority uplink transmission.

After the sub-transmission power of the high priority uplink transmission is allocated,

S1042A, if there is no remaining transmitting power of the uplink transmission in the first CG, determining that the sub-transmitting power of the target uplink transmission in the first CG is 0.

S1042B, if there is a surplus transmitting power of the uplink transmission in the first CG and there is an uplink transmission with the same priority that overlaps with the destination uplink transmission in the first CG, allocating sub-transmitting power of the destination uplink transmission in the first CG according to a sub-transmitting power determination condition of the uplink transmission with the same priority.

Specifically, the determination of the sub-transmission power of the uplink transmission with the same priority includes two cases, namely that the sub-transmission power of the uplink transmission with the same priority is determined and is not determined.

When the remaining power of the transmission power of the uplink transmission in the first CG is not enough to transmit all uplink transmissions of equal priority: if the sub-sending power of the uplink transmission with the same priority is determined, under the condition that the sub-sending power of the uplink transmission with the same priority is guaranteed to be preferentially distributed, the sub-sending power of the target uplink transmission in the first CG is redistributed; if the sub-sending power of the uplink transmission with the same priority is not determined, reducing the sub-sending power of the target uplink transmission in the first CG and the sub-sending power of the uplink transmission with the same priority in an equal proportion mode to finally distribute the sub-sending power of the target uplink transmission in the first CG, or determining the sub-sending power of the uplink transmission with the same priority as 0 to finally distribute the sub-sending power of the target uplink transmission in the first CG. It should be noted that, when the sub-transmission power of the uplink transmission with equal priority is not determined, if the remaining power of the transmission power of the uplink transmission with equal priority in the first CG is not enough to transmit all uplink transmissions with equal priority, the uplink transmission with equal priority, which occupies the shortest time for transmission and/or has the latest transmission start time and/or has started transmission and occupies the lowest proportion of the entire transmission time of local scheduling, may also be allocated first. It is further noted that, the rule for allocating the uplink transmission with the same priority, which takes the shortest time for transmission and/or has the closest transmission start time and/or has started transmission and takes the lowest proportion of the entire local scheduling transmission time, may also be the rule for allocating the transmission with the same priority to be used when the sub-transmission power of the uplink transmission with the specified same priority is determined to be 0.

Further, another possible implementation method according to the embodiment of the present invention provides a specific implementation process for the manner of determining the sub-transmission power of each uplink transmission in the first CG, which is described in the relevant steps of the above steps S104, S1041, S1042A, S1042B, and the like:

(1) firstly, allocating sub-required power for uplink transmission with priority higher than that of target uplink transmission in the first CG;

(2) distributing sub-transmitting power for the determined sub-transmitting power of the uplink transmission with the same priority as the target uplink transmission in the first CG;

(3) and then distributing the sub-transmission power of a plurality of uplink transmissions with the same priority and simultaneously determining the sub-transmission power according to one of the following modes: 1) the transmission time is from short to long, 2) the transmission starting time is from early to late, 3) the sub-transmission power of the plurality of uplink transmissions is reduced in an equal proportion, 4) the sub-transmission power of part of the uplink transmissions in the plurality of uplink transmissions is reduced in an equal proportion, and the sub-transmission power of the rest uplink transmissions is determined to be 0.

It should be emphasized that, the steps (1), (2) and (3) are performed in sequence, and after a plurality of uplink transmissions related to the current step are found in sequence, the transmission power required by the plurality of uplink transmissions in the step is subtracted from the transmission power of the first CG.

And before each step is executed, judging whether the residual sending power of the first CG can meet the power requirement of target uplink transmission. If the sub-transmission power can be satisfied, allocating the required power of the target uplink transmission to be the determined sub-transmission power, and if the sub-transmission power cannot be satisfied, allocating the residual power of the target uplink transmission to be the determined sub-transmission power. If a plurality of uplink transmissions with sub-transmission powers determined simultaneously exist, and when the remaining power in the first CG is not enough to meet the power requirements of the uplink transmissions with sub-transmission powers determined simultaneously, the power required for uplink transmissions may be allocated one by one or power scaling may be performed in equal proportion according to the above steps 1), 2), 3), and 4). When the power is reduced in an equal proportion, the sub-transmission power of one or more uplink transmissions is allowed to be 0.

Further, with reference to the foregoing method flow, when the total power of all uplink transmissions in the first CG is not enough to be allocated, another possible implementation manner of the embodiment of the present invention takes into consideration factors such as special priority and the sub-transmission power determination time, and the following two different implementation methods are further provided for determining the sub-transmission power of the target uplink transmission in the first CG, and the implementation is performed after step S102.

The first implementation method comprises the following steps:

s105, if a plurality of uplink transmissions which are overlapped with the target uplink transmission in the first CG in time domain exist, at least one item is selected from first to last according to the following sequence to determine or reserve the sub-transmitting power of each uplink transmission in the first CG:

In the first implementation method, transmission with special priority is guaranteed, the distribution criterion of the sub-transmission power of the rest uplink transmissions is the first-obtained sub-transmission power, a plurality of uplink transmissions which are not determined and have the same sub-transmission power as the target uplink transmission are determined according to priority from high to low, and the sub-transmission power which is determined and has the same priority is obtained according to transmission time or reduced in equal proportion (the sub-transmission power of the specified uplink transmission is allowed to be 0).

The second implementation method comprises the following steps:

s106, if a plurality of uplink transmissions which are overlapped with a target uplink transmission time domain in the first CG exist, at least one item is selected from first to last according to the following sequence to determine or reserve the sub-transmitting power of each uplink transmission in the first CG:

In the second implementation method, the transmission with special priority is guaranteed first, and the distribution criteria of the sub-transmission power of the remaining uplink transmissions are as follows: the first-time acquisition of the determined power, the plurality of uplink transmissions of which the sub-transmission power is not determined are reserved from high to low according to the priority, and the plurality of uplink transmissions which have the same priority as the target uplink transmission and simultaneously determine the sub-transmission power are reduced according to the transmission time or in equal proportion (the sub-transmission power of the designated uplink transmission is allowed to be 0).

It should be emphasized that, the steps (1), (2), (3) and (4) are performed in sequence, and after a plurality of uplink transmissions related to the current step are found in sequence, the transmission power required by the plurality of uplink transmissions in the step is subtracted from the transmission power of the first CG.

And before each step is executed, judging whether the residual sending power of the first CG can meet the power requirement of target uplink transmission. If the sub-transmission power can be satisfied, allocating the required power of the target uplink transmission to be the determined sub-transmission power, and if the sub-transmission power cannot be satisfied, allocating the residual power of the target uplink transmission to be the determined sub-transmission power. If there are multiple uplink transmissions with sub-transmission powers determined simultaneously, when the remaining power in the first CG is not enough to meet the power requirements of the uplink transmissions with sub-transmission powers determined simultaneously, the power required for uplink transmissions may be allocated one by one or power scaling may be performed according to the above steps 1), 2), 3), 4). When the power reduction is performed proportionally, the sub-transmission power of one or more uplink transmissions is allowed to be 0.

It is further emphasized that, for the above two implementation methods, in steps (1), (2), (3) and (4), only the previous steps are performed, the transmission power of the first CG can be determined in the following steps if there is any remaining power, and if there is no remaining power, the power of the target uplink transmission in the first CG is determined to be 0. When the above-described sequentially-specified power allocation is performed for a plurality of uplink transmissions, all the determinations need not be made, and the remaining steps may not be performed as long as the target uplink transmission has been determined to have the sub-transmission power. For example, if the target uplink transmission is of a special priority, only step (1) needs to be performed.

Further, in conjunction with the foregoing method flows, the sub-transmission power of the target uplink transmission in the first CG is typically determined at or before a specified time. The appointed time is determined according to the starting time of the target uplink transmission in the first CG, or according to the sending time of the authorization information of the target uplink transmission in the first CG, or according to the receiving time of the authorization information of the target uplink transmission in the first CG.

Specifically, the specified time is a time when the starting time of the target uplink transmission in the first CG is shifted forward by a specified time difference, or the specified time is a time when the sending time of the authorization information of the target uplink transmission in the first CG is shifted backward by a specified time difference, or a time when the receiving time of the authorization information of the target uplink transmission in the first CG is shifted backward by a specified time difference.

Wherein the time difference comprises at least one of a predefined value, a configured cell-specific value, a configured first CG-specific value, a sender-specific value of a target uplink transmission in the configured first CG, an amount of time determined by a scheduling processing delay K2 of the uplink transmission, and an amount of time determined by a minimum processing delay N2 parameter of the uplink transmission.

The predefined value is a fixed value specified by a standard, for example, 3 OFDM symbols.

The configured cell-specific value may be used for all UEs, i.e. all UEs in the cell share the configured value.

Wherein the configured first CG specific value refers to a first CG specific (CG specific) configuration value, and the specific values of the MCG and the SCG are configured separately.

Wherein the sender (i.e. UE) -specific value, i.e. the time difference, of the transmission of the configured first CG is a UE-specific (UE specific) configuration value.

The value K2 of the target transmission in the first CG is a scheduling processing delay of uplink transmission, and specifically may include a difference from a slot occupied by DCI (Downlink Control Information) of UL grant Information of PUSCH transmission to a slot occupied by PUSCH transmission. Further, the time difference between the designated time and the transmission start time of the target uplink transmission in the first CG may be a minimum value of configured K2 values, or an indication value of configured K2 values (the base station configures a plurality of K2 values for the UE, and K2 used for each uplink transmission is further indicated by physical layer information, and the time difference between the designated time and the transmission start time of the target uplink transmission in the first CG is equal to a K2 value determined for the current transmission), or a larger value of (number of symbols of K2 slots, N2 symbols) (where N2 is a minimum processing delay of the UE for processing uplink transmission and is in units of OFDM symbols).

It should be noted that the designated time is sent to the terminal after the base station completes configuration. Generally, the base station configures a specific time difference parameter, such as a predefined value or a configured cell-specific value or a configured first CG-specific value or a configured sender-specific value of a target uplink transmission in the first CG or an amount of time determined by a scheduling processing delay K2 of the uplink transmission or an amount of time determined by a minimum processing delay N2 parameter of the uplink transmission.

Further, with reference to the foregoing method flow, after determining the sub-transmission power of the target uplink transmission in the first CG, in order to update the sub-required power of the target uplink transmission in the first CG, another possible implementation manner of the embodiment of the present invention further provides the following method flow, including:

and S107, after the appointed time, updating the sub-required power of the target uplink transmission in the first CG to be the determined sub-sending power value of the target uplink transmission in the first CG.

Specifically, after the sub-transmission power of the target uplink transmission in the first CG is determined, the sub-required power of the target uplink transmission in the first CG may be updated to the determined value of the sub-transmission power of the target uplink transmission in the first CG.

Before the sub-transmit power time of the target uplink transmission in the first CG is determined, the sub-required power of the target uplink transmission in the first CG is the original sub-required power, that is, the power calculated by parameters such as open loop, closed loop, PL (path loss, abbreviated as path loss), and the like, and is limited by not exceeding the maximum transmit power.

It is further described that, before the target uplink transmission in the first CG is completed, the sub-required power of the target uplink transmission in the first CG is updated according to the power preemption condition of the high-priority uplink transmission.

Further, in combination with the above method, the priority of the uplink transmission in the first CG includes a special priority and a non-special priority. Specifically, the transmission with special priority may include at least one of transmission of a URLLC with an ultra-high-reliability ultra-low-latency communication service type, transmission of control class information of a URLLC service, transmission identified as a special scheduling type, transmission identified as special scheduling type control class information, transmission identified as a physical random access channel PRACH that can preempt power requirements of uplink transmissions in other CGs. The non-special priority is other than the special priority.

The special priority is higher than the priority of a PUCCH carrying Hybrid Automatic Repeat request-Acknowledgement (HARQ-ACK) information and/or Service Router (SR) information; in the special priorities, the priority of the PRACH is higher than the transmission priority of other special priorities; or, the priority of the transmission of the master CG is higher than that of the transmission of the slave CG in the equal priority.

The sub-demand power allocation mode for uplink transmission belonging to a special priority follows the following principle: when target uplink transmission in a first CG belongs to transmission with special priority and the first CG is a master CG, the ratio of the allowed maximum sub-transmission power to the maximum transmission power of the target uplink transmission in the first CG is 1; when the target uplink transmission in the first CG belongs to transmission with special priority and the first CG is the auxiliary CG, the ratio of the maximum sub-transmission power allowed by the target uplink transmission in the first CG to the maximum transmission power is as follows: 1-the proportion of power occupied by uplink transmissions of a particular priority in the master CG.

When the target uplink transmission in the first CG belongs to the transmission of the special priority class, the sub-required power of the low-priority transmission in the first CG and/or the second CG can be occupied; when the target uplink transmission in the first CG belongs to a non-special priority class of transmission, the sub-required power of low priority transmissions in the first CG may be occupied.

An embodiment of the present invention provides a power control apparatus, configured in a terminal, and adapted to the foregoing method, and as shown in fig. 8, the apparatus includes:

an obtaining unit 21, configured to obtain a power control parameter, where the power control parameter includes a required power for uplink transmission in a first cell group CG and a required power for uplink transmission in a second CG, and at least one of a high power ratio of the first CG, a low power ratio of the first CG, a high power ratio of the second CG, and a low power ratio of the second CG;

a first determining unit 22, configured to determine the transmission power of the uplink transmission in the first CG according to the power control parameter.

Optionally, the first determining unit 22 includes:

Optionally, a sum of the high power ratio of the first CG and the high power ratio of the second CG is less than or equal to 1.

Optionally, the high power ratio of the first CG is greater than or equal to the low power ratio of the first CG, and the high power ratio of the second CG is greater than or equal to the low power ratio of the second CG.

Optionally, the power control parameter further includes a sub-required power for each uplink transmission in the first CG and a sub-required power for each uplink transmission in the second CG.

Optionally, the apparatus further comprises:

Optionally, when the power is greater than the sending power of the uplink transmission in the first CG, the sub-sending power is allocated to each uplink transmission in the first CG at a time determined according to the priority and/or the sub-sending power of each uplink transmission in the first CG.

Optionally, the allocation unit is specifically configured to:

if there is a high priority uplink transmission overlapping with a time domain of a target uplink transmission in the first CG, sub-transmission power of the high priority uplink transmission is allocated first.

Optionally, the allocation unit is specifically configured to:

when the remaining power of the uplink transmission power in the first CG is not enough to transmit all uplink transmissions with the same priority, if the sub-transmission power of the uplink transmission with the same priority is determined, the sub-transmission power of the target uplink transmission in the first CG is allocated on the premise of ensuring that the sub-transmission power of the uplink transmission with the same priority is allocated;

Optionally, the allocation unit is specifically configured to:

Optionally, the apparatus further comprises:

Optionally, at or before a specified time, determining sub-transmission power of target uplink transmission in the first CG;

Optionally, the designated time is a time when a start time of the target uplink transmission in the first CG is shifted forward by a designated time difference, or the designated time is a time when a sending time of the grant information of the target uplink transmission in the first CG is shifted backward by a designated time difference, or a receiving time of the grant information of the target uplink transmission in the first CG is shifted backward by a designated time difference.

Optionally, the specified time difference includes at least one of a predefined value, a configured cell-specific value, a configured first CG-specific value, a sender-specific value of a target uplink transmission in the configured first CG, an amount of time determined by a scheduling processing delay K2 of the uplink transmission, and an amount of time determined by a minimum processing delay N2 parameter of the uplink transmission.

Optionally, the apparatus further comprises:

and an updating unit, configured to update the sub-required power of the target uplink transmission in the first CG to the determined sub-transmission power value of the target uplink transmission in the first CG after the specified time.

Optionally, the priority comprises a special priority.

Optionally, the transmission with special priority includes: the service type is at least one of the transmission of URLLC (ultra high reliability ultra low latency communication), the transmission of control class information of URLLC service, the transmission marked as a special scheduling type, the transmission marked as the control class information of the special scheduling type, the transmission marked as the transmission capable of preempting the required power of uplink transmission in other CGs and a Physical Random Access Channel (PRACH).

Optionally, the special priority is higher than the priority of a physical uplink control channel PUCCH carrying hybrid automatic repeat request acknowledgement HARQ-ACK information and/or service router SR information; or, in the special priorities, the priority of the PRACH is higher than the priorities of the transmissions of the other special priorities; or, the priority of the transmission of the main CG is higher than that of the transmission of the auxiliary CG in the equal priority.

Optionally, the allocation unit is specifically configured to:

(2) allocating sub-transmission power of uplink transmission for which the sub-transmission power has been determined;

Optionally, the allocation unit is specifically configured to:

(4) allocating the sub-transmission power of a plurality of uplink transmissions with the same priority and simultaneously determining the sub-transmission power according to at least one of the following modes: 1) the transmission time is from short to long, 2) the transmission starting time is from early to late, 3) the sub-transmission power of the plurality of uplink transmissions is reduced in an equal proportion, 4) the sub-transmission power of part of the uplink transmissions in the plurality of uplink transmissions is reduced in an equal proportion, and the sub-transmission power of the rest uplink transmissions is determined to be 0.

Optionally, when the target uplink transmission in the first CG belongs to transmission of a special priority, and the first CG is a master CG, a ratio of a maximum sub-transmission power allowed for the target uplink transmission in the first CG to a maximum transmission power is 1.

Optionally, when the target uplink transmission in the first CG belongs to transmission of a special priority, and the first CG is an auxiliary CG, a ratio of a maximum sub-transmission power allowed by the target uplink transmission in the first CG to a maximum transmission power is: 1-the proportion of power occupied by uplink transmissions of a particular priority in the master CG.

The foregoing embodiment of the present invention provides a power control apparatus, where at least one power parameter of a required power of uplink transmission in a first cell group CG, a high power ratio of the first CG, a low power ratio of the first CG, a required power of uplink transmission in a second CG, a high power ratio of the second CG, and a low power ratio of the second CG is used to determine a transmission power of uplink transmission in the first CG. The embodiment of the invention provides a power control scheme aiming at uplink transmission in an NR DC system, and achieves positive technical effects.

An embodiment of the present invention provides a power control apparatus, configured in a base station, and adapted to the foregoing method, and as shown in fig. 9, the apparatus includes:

a first configuration unit 31, configured to configure a first power control parameter and a second power control parameter, where the first power control parameter includes at least one of a high power ratio of the first CG, a low power ratio of the first CG, a high power ratio of the second CG, and a low power ratio of the second CG; the second power control parameter comprises information transmitted in an uplink in the first CG cell group and information transmitted in an uplink in the second CG;

a transmitting unit 32, configured to transmit the first power control parameter and the second control parameter;

Optionally, the second power control parameter further includes information for determining a sub-required power for each uplink transmission in the first CG, and information for determining a sub-required power for each uplink transmission in the second CG.

Optionally, the apparatus further comprises:

a second configuration unit 33, configured to configure a specific time, so that the terminal determines the sub-transmission power of the target uplink transmission in the first CG at or before the specific time;

The foregoing embodiment of the present invention provides a power control apparatus, where at least one power parameter of configured required power for uplink transmission in a first cell group CG, a high power ratio of the first CG, a low power ratio of the first CG, required power for uplink transmission in a second CG, a high power ratio of the second CG, and a low power ratio of the second CG is sent to a terminal, so that the terminal determines the sending power for uplink transmission in the first CG. The embodiment of the invention provides a power control scheme aiming at uplink transmission in an NR DC system, and achieves positive technical effects.

An embodiment of the present invention provides a power control apparatus, as shown in fig. 10, the power control apparatus includes: a memory 41, a processor 42 and a computer program stored on the memory 41 and executable on the processor 42, the computer program realizing the steps of the method as described in any of the embodiments and any possible implementation when executed by the processor 42.

An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method according to any embodiment and any possible implementation manner.

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 identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solutions of the present invention or portions thereof contributing 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 (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the methods according to the embodiments of the present invention.

While the present invention has been described with reference to the particular illustrative embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and equivalents thereof, which may be made 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, the method comprising:

acquiring power control parameters, wherein the power control parameters comprise at least one of uplink transmission required power in a first cell group CG, uplink transmission required power in a second CG, high power ratio of the first CG, low power ratio of the first CG, high power ratio of the second CG and low power ratio of the second CG;

determining the sending power of uplink transmission in the first CG according to the power control parameter;

wherein the high power proportion is used as a basis for determining the transmission power that the first CG and the second CG can occupy when the sum of the required power for uplink transmission in the first CG and the required power for uplink transmission in the second CG is greater than a maximum transmission power; the low power proportion is used as a basis for judging the reserved transmission power for the uplink transmission possibly existing in the other CG when the sub-transmission power is determined for the target uplink transmission in any one of the first CG and the second CG and whether the other CG has the uplink transmission cannot be determined in the transmission period of the target uplink transmission.

2. The method of claim 1, wherein determining the transmit power for the uplink transmission in the first CG based on the power control parameter comprises:

3. The method of claim 1, wherein determining the transmit power for the uplink transmission in the first CG based on the power control parameter comprises:

in a case where it is determined that there is no uplink transmission in the second CG during transmission of a target uplink transmission in the first CG, it is determined that a ratio of a transmission power of the uplink transmission in the first CG occupying a maximum transmission power is 1 at most.

4. The method of claim 1, wherein determining the transmit power for the uplink transmission in the first CG based on the power control parameter comprises:

5. The method of claim 1, wherein the determining the transmit power for the uplink transmission in the first CG according to the power control parameter comprises:

when the required power of the uplink transmission in the first CG is greater than the power indicated by the high power proportion of the first CG, and the required power of the uplink transmission in the second CG is less than the power indicated by the high power proportion of the second CG, determining that the maximum ratio of the transmission power of the uplink transmission in the first CG to the maximum transmission power is: 1-max (the ratio of the required power of the uplink transmission to the maximum transmission power in the second CG, and the ratio of the low power in the second CG);

wherein max (a ratio of the required power for the uplink transmission to the maximum transmission power in the second CG, and a low power ratio of the second CG) represents a maximum value of the ratio of the required power for the uplink transmission to the maximum transmission power in the second CG and the low power ratio of the second CG.

6. The method of claim 1, wherein a sum of a high power fraction of the first CG and a high power fraction of the second CG is less than or equal to 1.

7. The method of claim 1, wherein a high power fraction of the first CG is greater than or equal to a low power fraction of the first CG, and wherein a high power fraction of the second CG is greater than or equal to a low power fraction of second CG.

8. The method of claim 1, wherein the power control parameters further comprise a sub-required power for each uplink transmission in the first CG and a sub-required power for each uplink transmission in the second CG.

9. The method of claim 8, further comprising:

10. The method of claim 8, further comprising:

11. The method of claim 10, wherein the allocating sub-transmission power to each uplink transmission in the first CG according to the priority of each uplink transmission in the first CG comprises:

12. The method of claim 11, wherein the allocating sub-transmission power for each uplink transmission in the first CG according to the priority of each uplink transmission in the first CG further comprises:

13. The method of claim 11, wherein the allocating sub-transmission power for each uplink transmission in the first CG according to the priority of each uplink transmission in the first CG further comprises:

14. The method of claim 13, wherein the allocating the sub-transmission power of the target uplink transmission in the first CG according to the sub-transmission power determination of the equal priority uplink transmission comprises:

15. The method of claim 13 or 14, wherein the allocating the sub-transmission power of the target uplink transmission in the first CG according to the sub-transmission power determination of the uplink transmission of equal priority comprises:

When the remaining power of the uplink transmission power in the first CG is not enough to transmit all uplink transmissions of the same priority, if the sub-transmission power of the uplink transmissions of the same priority is not determined, the uplink transmissions of the same priority with the shortest time occupied by the transmission and/or the earliest transmission start time and/or the lowest proportion of the local scheduling overall transmission time are allocated first.

16. The method of claim 1, further comprising:

the low power ratio of the second CG is determined according to the attribute parameters of the target uplink transmission in the first CG, and the attribute parameters of the target uplink transmission in the first CG comprise at least one of transmission duration, transmission service type, transmission priority and channel priority.

17. The method of claim 8, further comprising:

determining sub-transmission power of target uplink transmission in the first CG at or before a specified time;

18. The method of claim 17, wherein the predetermined time is a time when a start time of the target uplink transmission in the first CG is shifted forward by a predetermined time difference, or wherein the predetermined time is a time when a transmission time of the grant information for the target uplink transmission in the first CG is shifted backward by a predetermined time difference, or wherein the reception time of the grant information for the target uplink transmission in the first CG is shifted backward by a predetermined time difference.

19. The method of claim 18, wherein the specified time difference comprises at least one of a predefined value, a configured cell-specific value, a configured first CG-specific value, a sender-specific value for a target uplink transmission in the configured first CG, an amount of time determined by a scheduling processing delay of uplink transmission K2, and an amount of time determined by a minimum processing delay of uplink transmission N2 parameter.

20. The method of claim 17, further comprising:

21. The method of claim 10, wherein the priority comprises a special priority.

22. The method of claim 21, wherein transmitting with a particular priority comprises: the service type is at least one of transmission of ultra-high-reliability ultra-low-delay communication URLLC, transmission of control class information of URLLC service, transmission marked as a special scheduling type, transmission marked as special scheduling type control class information, transmission marked as being capable of preempting required power of uplink transmission in other CG and physical random access channel PRACH.

23. The method according to claim 21, wherein said special priority is higher than the priority of a physical uplink control channel, PUCCH, carrying hybrid automatic repeat request acknowledgement, HARQ-ACK, information and/or traffic router, SR, information; or, in the special priorities, the priority of the PRACH is higher than the transmission priority of the other special priorities; or, the priority of the transmission of the master CG is higher than that of the transmission of the slave CG in the equal priority.

24. The method according to claim 10 or 21, wherein said allocating sub-transmission power for each uplink transmission in the first CG according to the determined time of the priority and/or sub-transmission power of each uplink transmission in the first CG comprises:

25. The method of claim 10 or 21, wherein allocating sub-transmission power for each uplink transmission in the first CG according to the priority of each uplink transmission in the first CG and/or the time determined by the power of each uplink transmission in the first CG comprises:

26. The method of claim 21,

27. The method of claim 21,

when the target uplink transmission in the first CG belongs to transmission of a special priority and the first CG is an auxiliary CG, a ratio of a maximum sub-transmission power allowed for the target uplink transmission in the first CG to a maximum transmission power is: 1-the proportion of power occupied by uplink transmissions of a particular priority in the master CG.

28. A method of power control, the method comprising:

configuring a first power control parameter and a second power control parameter, wherein the first power control parameter comprises at least one of a high power ratio of the first CG, a low power ratio of the first CG, a high power ratio of the second CG and a low power ratio of the second CG; the second power control parameter comprises information transmitted in an uplink in the first CG cell group and information transmitted in an uplink in the second CG;

transmitting the first power control parameter and the second power control parameter;

the information transmitted in the uplink in the first cell group CG is used for determining the required power transmitted in the uplink in the first CG, and the information transmitted in the uplink in the second CG is used for determining the required power transmitted in the uplink in the second CG;

the high power duty ratio is used as a basis for judging the transmission power which can be occupied by the first CG and the second CG when the sum of the required power of the uplink transmission in the first CG and the required power of the uplink transmission in the second CG is greater than the maximum transmission power; the low power ratio is used as a basis for determining a transmission power reserved for uplink transmission that may exist by another CG when a sub-transmission power is determined for target uplink transmission in any one of the first CG and the second CG and whether the other CG has uplink transmission cannot be determined within a transmission period of the target uplink transmission; the information transmitted in the uplink includes scheduling information or static signaling information.

29. The method of claim 28, wherein the second power control parameter further comprises information for determining a sub-required power for each uplink transmission in the first CG and information for determining a sub-required power for each uplink transmission in the second CG.

30. The method of claim 29, further comprising:

31. The method of claim 30, wherein the predetermined time is a time at which a start time of the target uplink transmission in the first CG is shifted forward by a predetermined time difference, or wherein the predetermined time is a time at which a transmission time of the grant information for the target uplink transmission in the first CG is shifted backward by a predetermined time difference, or wherein a reception time of the grant information for the target uplink transmission in the first CG is shifted backward by a predetermined time difference.

32. The method of claim 31, wherein the specified time difference comprises at least one of a predefined value, a configured cell-specific value, a configured first CG-specific value, a sender-specific value for a target uplink transmission in the configured first CG, an amount of time determined by a scheduling processing delay of uplink transmission K2, and an amount of time determined by a minimum processing delay of uplink transmission N2 parameter.

33. A power control apparatus, characterized in that the apparatus comprises:

an obtaining unit, configured to obtain a power control parameter, where the power control parameter includes at least one of a required power for uplink transmission in a first cell group CG, a required power for uplink transmission in a second CG, a high power fraction of the first CG, a low power fraction of the first CG, a high power fraction of the second CG, and a low power fraction of the second CG;

a first determining unit, configured to determine, according to the power control parameter, a transmission power of uplink transmission in the first CG;

34. A power control apparatus, characterized in that the apparatus comprises:

a transmitting unit, configured to transmit the first power control parameter and the second power control parameter;

the high power proportion is used as a basis for judging the transmission power which can be occupied by the first CG and the second CG when the sum of the required power of the uplink transmission in the first CG and the required power of the uplink transmission in the second CG is greater than the maximum transmission power; the low power proportion is used as a basis for judging the reserved transmission power for the uplink transmission possibly existing in the other CG when the sub-transmission power is determined for the target uplink transmission in any one of the first CG and the second CG and whether the other CG has the uplink transmission cannot be determined in the transmission period of the target uplink transmission; the information transmitted in uplink includes scheduling information or static signaling information.

35. A power control apparatus, characterized in that the power control apparatus comprises: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method according to any one of claims 1 to 32.

36. A computer-readable storage medium, characterized in that a computer program is stored thereon which, when being executed by a processor, carries out the steps of a method according to any one of claims 1 to 32.