CN114828183A

CN114828183A - Control method for carrier aggregation power of terminal and terminal thereof

Info

Publication number: CN114828183A
Application number: CN202110089205.1A
Authority: CN
Inventors: 刘博�; 杨姗; 朱剑驰; 乔晓瑜; 佘小明; 陈鹏
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2022-07-29
Also published as: WO2022156308A1

Abstract

The disclosure provides a control method for carrier aggregation power of a terminal and the terminal thereof. The control method comprises the following steps: determining the difference value delta P between the adjusted transmitting power grade of the terminal and the current transmitting power grade according to the uplink time ratio of the uplink carrier aggregation scheduled by the base station, the capability information reported to the base station by the terminal and the maximum transmitting power of the carrier aggregation of the base station configuration terminal _{PowerClass，CA} (ii) a In case the actual average transmission power of the terminal exceeds the limit of the predetermined SAR, depending on the difference Δ P _{PowerClass，CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} (ii) a And adjusting the upper limit value P _{CMAX_H} And a lower limit value P _{CMAX_L} Then, the actual maximum transmitting power P of the terminal carrier aggregation is adjusted _CMAX Make the adjusted actual maximum transmitting power P of the terminal carrier aggregation _CMAX Satisfy P _{CMAX_L} ≤P _CMAX ≤P _{CMAX_H} . The method and the device can enable the average power transmitted by the terminal to meet the SAR regulation requirement.

Description

Control method for carrier aggregation power of terminal and terminal thereof

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a control method for carrier aggregation power of a terminal and a terminal thereof.

Background

Most of the mainstream frequency spectrum of 5G (5th generation wireless systems, fifth generation mobile communication technology) adopts a time division duplex mode, the uplink time occupation ratio is low, the pressure is high when large traffic flows are encountered, and the edge coverage rate is low due to the high carrier frequency. By means of high-frequency and low-frequency carrier aggregation and a high-power scheme adopted by a terminal, uplink coverage and capacity can be effectively improved.

However, in the high power carrier aggregation scheme, since the uplink aggregation carrier transmission power is increased, the transmission power of the terminal may exceed the SAR (Specific Absorption Rate, or electromagnetic wave human body Absorption ratio) regulatory requirement.

Disclosure of Invention

The technical problem that this disclosure solved is: a control method for carrier aggregation power of a terminal is provided, so that the average power of terminal transmission meets SAR regulation requirements.

According to an aspect of the present disclosure, there is provided a control method for terminal carrier aggregation power, including: determining the difference value delta P between the adjusted transmitting power grade of the terminal and the current transmitting power grade according to the uplink time ratio of the uplink carrier aggregation scheduled by the base station, the capability information reported to the base station by the terminal and the maximum transmitting power of the carrier aggregation configured by the base station _{PowerClass,CA} (ii) a Under the condition that the actual average transmitting power of the terminal exceeds the limit of a preset electromagnetic wave absorption ratio SAR, according to the difference value delta P between the transmitting power grade adjusted by the terminal and the current transmitting power grade _{PowerClass,CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And lowerLimit value P _{CMAX_L} (ii) a And adjusting the upper limit value P of the maximum transmission power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} Then, the actual maximum transmitting power P of the terminal carrier aggregation is adjusted _CMAX Making the adjusted actual maximum transmitting power P of the terminal carrier aggregation _CMAX Satisfy P _{CMAX_L} ≤P _CMAX ≤P _{CMAX_H} 。

In some embodiments, the difference Δ P is based on _{PowerClass,CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} Comprises the following steps: according to the difference value delta P between the adjusted transmitting power grade of the terminal and the current transmitting power grade _{PowerClass,CA} Reducing the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} (ii) a And adjusting the actual maximum transmitting power P of the terminal carrier aggregation _CMAX Comprises the following steps: reducing the actual maximum transmit power P of the terminal carrier aggregation _CMAX 。

In some embodiments, the capability information reported by the terminal to the base station includes: the transmitting power grade of the carrier aggregation of the terminal, the transmitting power grade of each frequency band in the carrier aggregation and the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power grade is 26 dBm; determining the difference value delta P between the adjusted transmitting power grade of the terminal and the current transmitting power grade according to the uplink time ratio of the uplink carrier aggregation scheduled by the base station, the capability information reported to the base station by the terminal and the maximum transmitting power of the carrier aggregation configured by the base station _{PowerClass,CA} Comprises the following steps: determining the difference Δ P in case of at least one of the following three cases (L1) to (L3) _{PowerClass,CA} Greater than 0 and less than or equal to 6dB, a predetermined difference value, wherein (L1) the maximum transmitting power of carrier aggregation configured by the base station for the terminal is less than or equal to 23dBm, and (L2) the uplink carrier which is reported by the terminal, has default signaling of the maximum schedulable uplink time ratio capability under the condition that the terminal power level is 26dBm and is normalized within a predetermined evaluation timeThe uplink time ratio of wave aggregation exceeds 50%, wherein the predetermined evaluation time is not less than the transmission time of 1 radio frame, or (L3) the maximum schedulable uplink time ratio capability signaling reported by the terminal under the condition that the terminal power level is 26dBm has no default, and the uplink time ratio of uplink carrier aggregation normalized within the predetermined evaluation time exceeds the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power level is 26dBm, wherein the predetermined evaluation time is not less than the transmission time of 1 radio frame; and determining the difference Δ P in the case of the other cases than the above three cases _{PowerClass,CA} Is 0 dB.

In some embodiments, the capability information reported by the terminal to the base station includes: the transmitting power grade of the carrier aggregation of the terminal, the transmitting power grade of each frequency band in the carrier aggregation and the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power grade is 26 dBm; determining the difference value delta P between the adjusted transmitting power grade of the terminal and the current transmitting power grade according to the uplink time ratio of the uplink carrier aggregation scheduled by the base station, the capability information reported to the base station by the terminal and the maximum transmitting power of the carrier aggregation configured by the base station _{PowerClass,CA} Comprises the following steps: determining the difference Δ P in case of at least one of the following four cases (P1) to (P4) _{PowerClass,CA} At 0dB, (P1) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, and the uplink time ratio of one frequency band carrier in a carrier aggregation combination does not exceed 20%, and the uplink time ratio of another frequency band carrier does not exceed the maximum schedulable uplink time ratio of the terminal reported by the terminal under the situation that the uplink time ratio of the one frequency band carrier does not exceed 20% and the terminal power level is 26dBm, (P2) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than the default power level of 23dBm, and the uplink time ratio of the one frequency band carrier in the carrier aggregation combination is greater than 20% and not more than 35%, and the uplink time ratio of the other frequency band carrier does not exceed the default power level of 23dBmA maximum schedulable uplink time occupancy rate reported by the terminal under a scenario that the uplink time occupancy of the carriers of the frequency bands is greater than 20% and not more than 35% and the power level of the terminal is 26dBm, (P3) the base station configures that the maximum transmission power of the carrier aggregation of the terminal is default or higher than the default power level 23dBm, and the uplink time occupancy of the carrier of one frequency band in the carrier aggregation combination is greater than 35% and not more than 40%, and the uplink time occupancy of the carrier of the other frequency band is not greater than the maximum schedulable uplink time occupancy rate reported by the terminal under a scenario that the uplink time occupancy of the carrier of the one frequency band is greater than 35% and not more than 40% and the power level of the terminal is 26dBm, or (P4) the base station configures that the maximum transmission power of the carrier aggregation of the terminal is default or higher than the default power level 23dBm, and the uplink time occupancy of the carrier of the one frequency band in the carrier aggregation combination is greater than 40% and not more than 70%, the uplink time ratio of the other frequency band carrier is not more than the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power level is 26dBm under the scene that the uplink time ratio of the one frequency band carrier is more than 40% and not more than 70%; and determining the difference Δ P in the case of other situations than the above four situations _{PowerClass,CA} Is a predetermined difference greater than 0 and equal to or less than 6 dB.

In some embodiments, the capability information reported by the terminal to the base station includes: the transmitting power grade of the carrier aggregation of the terminal, the transmitting power grade of each frequency band in the carrier aggregation and the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power grade is 26 dBm; determining the difference value delta P between the adjusted transmitting power grade of the terminal and the current transmitting power grade according to the uplink time ratio of uplink carrier aggregation scheduled by the base station and the capability information reported to the base station by the terminal _{PowerClass,CA} Comprises the following steps: determining the difference Δ P in the case where at least one of the following four cases (Q1) to (Q4) occurs _{PowerClass,CA} At 0dB, (Q1) the base station configures the maximum transmit power of the carrier aggregation of the terminal to be default or higher than the default power level of 23dBm, and the uplink time of one frequency band carrier in the carrier aggregation combination accounts forThe ratio is not more than 30%, the uplink time ratio of another frequency band carrier is not more than the maximum schedulable uplink time ratio reported by the terminal under the condition that the uplink time ratio of the one frequency band carrier is not more than 30% and the terminal power level is 26dBm, (Q2) the base station configures the default maximum transmission power of the carrier aggregation of the terminal or higher than the default power level of 23dBm, and the uplink time ratio of the carrier of one frequency band in the carrier aggregation combination is more than 30% and not more than 40%, and the uplink time ratio of the other frequency band carrier is not more than the maximum schedulable uplink time ratio reported by the terminal under the condition that the uplink time ratio of the one frequency band carrier is more than 30% and not more than 40% and the terminal power level is 26dBm, (Q3) the base station configures the maximum transmission power of the carrier aggregation of the terminal or higher than the default power level of 23dBm, and the uplink time ratio of one frequency band carrier in the carrier aggregation combination is more than 40% and not more than 60%, and the uplink time ratio of the other frequency band carrier is not more than the maximum schedulable uplink time ratio reported by the terminal under the condition that the uplink time ratio of the one frequency band carrier is more than 40% and not more than 60% and the terminal power level is 26dBm, or (Q4) the base station configuring the maximum transmit power for carrier aggregation for the terminal by default or above a default power level of 23dBm, and the uplink time ratio of one frequency band carrier in the carrier aggregation combination is more than 60% and not more than 80%, and the uplink time ratio of the other frequency band carrier is not more than the maximum schedulable uplink time ratio reported by the terminal under the condition that the uplink time ratio of the one frequency band carrier is more than 60% and not more than 80% and the terminal power level is 26 dBm; and determining the difference Δ P in the case of other situations than the above four situations _{PowerClass,CA} Is a predetermined difference greater than 0 and equal to or less than 6 dB.

In some embodiments, the difference Δ P between the adjusted transmission power level and the current transmission power level of the terminal is determined according to the following relation _{PowerClass,CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} ：

P _{CMAX_H} ＝MIN{10log10∑P _EMAX,c ,P _EMAX,CA ,(P _PowerClass -ΔP _{PowerClass,CA} )}，

Wherein, P _EMAX,c Configuring the maximum transmitting power of the terminal on a carrier c for the base station, wherein c is a positive integer and P _EMAX,CA Configuring the base station with the maximum transmission power, P, of the carrier aggregation of the terminal _PowerClass Maximum transmit power level, mpr, for the terminal carrier aggregation _c Is the maximum transmission power back-off value, Δ mpr, of the terminal _c Is the maximum transmit power back-off difference, a-mpr, of the terminal _c For additional maximum transmit power back-off values, Δ t _C,c Broadening a compensation parameter, Δ t, of a transmit power for the terminal at a band edge _IB,c Compensating parameter, Δ t, for insertion loss of transmission power of said terminal _RxSRS,c Compensation parameters, pmpr, employed in a predetermined scenario when transmitting uplink sounding reference signals for said terminal _c The power back-off parameter adopted by the terminal under the condition of considering electromagnetic compatibility or radiation absorption requirement is adopted.

In some embodiments, the uplink time ratio of the normalized uplink carrier aggregation is Duty _NR,x ·(P _NR,x /P _CA )+Duty _NR,y ·(P _NR,y /P _CA )，

Therein, Duty _NR,x Scheduling the uplink scheduling time Duty of the x-band carrier of the terminal for the base station _NR,y An uplink scheduling time ratio, P, of a y-band carrier scheduling the terminal for the base station _NR,x Maximum linear transmitting power, P, corresponding to the power level of the carrier wave of the x frequency band reported to the base station by the terminal _NR,y Maximum linear transmitting power, P, corresponding to the power grade of the y-band carrier reported to the base station by the terminal _CA The power grade of carrier aggregation of the x frequency band and the y frequency band reported to the base station by the terminalThe corresponding maximum linear transmit power.

In some embodiments, the uplink time ratio of the normalized uplink carrier aggregation is Duty _NR,x ·(8 _NR,x /P _CA )·SARratio _NR,x +Duty _NR,y ·(P _NR,y /P _CA )·SARratio _NR,y Wherein, the Duty _NR,x Scheduling the uplink scheduling time Duty of the x-band carrier of the terminal for the base station _NR,y An uplink scheduling time ratio, P, of a y-band carrier scheduling the terminal for the base station _NR,x Maximum linear transmitting power, P, corresponding to the power grade of the x-frequency band carrier wave reported to the base station by the terminal _NR,y Maximum linear transmitting power, P, corresponding to the power grade of the y-band carrier reported to the base station by the terminal _CA Maximum linear transmitting power, SARratio, corresponding to the power grade of carrier aggregation of the x frequency band and the y frequency band reported to the base station by the terminal _NR,x Is SAR compensation coefficient, SARratio, of the x frequency band of the terminal _NR,y And the SAR compensation coefficient of the y frequency band of the terminal.

In some embodiments, the SARratio _NR,x Satisfies the following conditions: when P is present _NR,x ≤23dBm,SARratio _NR,x 1 is ═ 1; when P is present _NR,x Greater than 23dBm, SARratio _NR,x 50%/maxuplinkdetycycle-PC 2-FB1-x, wherein the maxuplinkdycycle-PC 2-FR1-x is the maximum schedulable uplink time ratio capability of an x-frequency band carrier reported to the base station by the terminal when the carrier is transmitted at a power level of 26 dBm; the SARratio _NR,y Satisfies the following conditions: when P is present _NR,y ≤23dBm,SARratio _NR,y 1 is ═ 1; when P is present _NR,y SARratio > 23dBm _NR,y The uplink scheduling method comprises the steps of (1) 50%/maxuplinkdtycycle-PC 2-FB1-y, wherein maxuplinkdtycycle-PC 2-FR1-y is the maximum schedulable uplink time ratio capacity of a y-frequency band carrier reported to the base station by the terminal when the y-frequency band carrier is transmitted at a power level of 26 dBm.

In some embodiments, the predetermined difference is 3 dB.

According to another aspect of the present disclosure, there is provided a terminal including: an information analysis unit for analyzing the information according to the basisDetermining the difference value delta P between the adjusted transmitting power grade of the terminal and the current transmitting power grade by the uplink time ratio of the uplink carrier aggregation scheduled by the station, the capability information reported to the base station by the terminal and the maximum transmitting power of the carrier aggregation configured by the base station _{PowerClass,CA} (ii) a A first adjusting unit, configured to, when an actual average transmission power of a terminal exceeds a limit of a predetermined electromagnetic wave absorption ratio SAR, adjust a difference Δ P between a transmission power level adjusted by the terminal and a current transmission power level _{PowerClass,CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} (ii) a And a second adjusting unit for adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} Then, the actual maximum transmitting power P of the terminal carrier aggregation is adjusted _CMAX So that the adjusted actual maximum transmitting power P of the terminal carrier aggregation _CMAX Satisfy P _{CMAX_L} ≤P _CMAX ≤P _{CMAX_H} 。

In some embodiments, the first adjusting unit is configured to adjust the transmission power level of the terminal according to a difference Δ P between the adjusted transmission power level and a current transmission power level of the terminal _{PowerClass,CA} Reducing the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} (ii) a The second adjusting unit is used for reducing the actual maximum transmitting power P of the terminal carrier aggregation _CMAX 。

In some embodiments, the capability information reported by the terminal to the base station includes: the transmitting power grade of the carrier aggregation of the terminal, the transmitting power grade of each frequency band in the carrier aggregation and the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power grade is 26 dBm; the information analysis unit is configured to: determining the difference Δ P in case that at least one of the following three cases (L1) to (L3) occurs _{PowerClass,CA} For a predetermined difference greater than 0 and equal to or less than 6dB, (L1) the base station configures a maximum transmit power for carrier aggregation for the terminal to be less than or equal to 23dBm, (L2) on the terminalThe reported maximum schedulable uplink time ratio capability signaling under the condition that the terminal power level is 26dBm is default and the uplink time ratio of the normalized uplink carrier aggregation within the preset evaluation time exceeds 50%, wherein the preset evaluation time is not less than the transmission time of 1 radio frame, or (L3) the maximum schedulable uplink time ratio capability signaling under the condition that the terminal power level is 26dBm reported by the terminal is not default and the uplink time ratio of the normalized uplink carrier aggregation within the preset evaluation time exceeds the maximum schedulable uplink time ratio under the condition that the terminal power level is 26dBm reported by the terminal, wherein the preset evaluation time is not less than the transmission time of 1 radio frame; and determining the difference Δ P in the case of the other cases than the above three cases _{PowerClass,CA} Is 0 dB.

In some embodiments, the capability information reported by the terminal to the base station includes: the transmitting power grade of the carrier aggregation of the terminal, the transmitting power grade of each frequency band in the carrier aggregation and the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power grade is 26 dBm; the information analysis unit is configured to: determining the difference Δ P in case of at least one of the following four cases (P1) to (P4) _{PowerClass,CA} 0dB, (P1) the base station configures the maximum transmit power for carrier aggregation for the terminal to be at or above a default power level of 23dBm, and the uplink time ratio of one frequency band carrier in the carrier aggregation combination is not more than 20%, and the uplink time ratio of the other frequency band carrier is not more than the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power level is 26dBm under the condition that the uplink time ratio of the one frequency band carrier is not more than 20% (P2) the base station configures the default maximum transmission power of the carrier aggregation of the terminal or is higher than the default power level 23dBm, and the uplink time ratio of one frequency band carrier in the carrier aggregation combination is more than 20% and not more than 35%, and the uplink time ratio of the other frequency band carrier is not more than the terminal power reported by the terminal under the scene that the uplink time ratio of the one frequency band carrier is more than 20% and not more than 35%.Maximum schedulable uplink time ratio under the condition of level of 26dBm, (P3) the base station configures the maximum transmission power of the carrier aggregation of the terminal to be default or higher than the default power level of 23dBm, and the uplink time ratio of one frequency band carrier in a carrier aggregation combination is greater than 35% and not more than 40%, and the uplink time ratio of the other frequency band carrier is not more than the maximum schedulable uplink time ratio under the condition that the terminal power level is 26dBm reported by the terminal under the condition that the uplink time ratio of the one frequency band carrier is greater than 35% and not more than 40%, or (P4) the base station configures the maximum transmission power of the carrier aggregation of the terminal to be default or higher than the default power level of 23dBm, and the uplink time ratio of one frequency band carrier in the carrier aggregation combination is greater than 40% and not more than 70%, and the uplink time ratio of the other frequency band carrier is not more than the maximum schedulable uplink time ratio under the condition that the uplink time ratio of the one frequency band carrier is greater than 40% and not more than 70% The maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power level is 26 dBm; and determining the difference Δ P in case of other situations than the above four situations _{PowerClass,CA} Is a predetermined difference greater than 0 and equal to or less than 6 dB.

In some embodiments, the capability information reported by the terminal to the base station includes: the transmitting power grade of the carrier aggregation of the terminal, the transmitting power grade of each frequency band in the carrier aggregation and the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power grade is 26 dBm; the information analysis unit is configured to: determining the difference Δ P in the case where at least one of the following four cases (Q1) to (Q4) occurs _{PowerClass,CA} At 0dB, (Q1) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, and the uplink time occupancy of one frequency band carrier in a carrier aggregation combination does not exceed 30%, and the uplink time occupancy of the other frequency band carrier does not exceed the maximum schedulable uplink time occupancy reported by the terminal under the condition that the uplink time occupancy of the one frequency band carrier does not exceed 30% and the terminal power level is 26dBm, (Q2) the base station configures the maximum schedulable uplink time occupancy of carrier aggregation of the terminalThe transmitting power is default or higher than the default power level of 23dBm, the uplink time ratio of one frequency band carrier in a carrier aggregation combination is greater than 30% and is not more than 40%, and the uplink time ratio of the other frequency band carrier is not more than the maximum schedulable uplink time ratio reported by the terminal under the condition that the uplink time ratio of the one frequency band carrier is greater than 30% and is not more than 40% under the condition that the terminal power level is 26dBm, (Q3) the base station configures the default or higher maximum transmitting power of the carrier aggregation of the terminal, the uplink time ratio of the one frequency band carrier in the carrier aggregation combination is greater than 40% and is not more than 60%, and the uplink time ratio of the other frequency band carrier is not more than the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power level is 26dBm under the condition that the uplink time ratio of the one frequency band carrier is greater than 40% and is not more than 60%, or (Q4) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, and the uplink time occupancy of one frequency band carrier in a carrier aggregation combination is greater than 60% and does not exceed 80%, and the uplink time occupancy of another frequency band carrier is not greater than the maximum schedulable uplink time occupancy reported by the terminal under the situation that the terminal power level is 26dBm under the scenario that the uplink time occupancy of the one frequency band carrier is greater than 60% and does not exceed 80%; and determining the difference Δ P in the case of other situations than the above four situations _{PowerClass,CA} Is a predetermined difference greater than 0 and equal to or less than 6 dB.

In some embodiments, the first adjusting unit is configured to adjust the difference Δ P between the adjusted transmission power level of the terminal and the current transmission power level according to the following relation _{PowerClass,CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} ：

Therein, Duty _NR,x Scheduling the uplink scheduling time Duty of the x-band carrier of the terminal for the base station _NR,y An uplink scheduling time ratio, P, of a y-band carrier scheduling the terminal for the base station _NR,x Maximum linear transmitting power, P, corresponding to the power grade of the x-frequency band carrier wave reported to the base station by the terminal _NR,y Maximum linear transmitting power, P, corresponding to the power grade of the y-band carrier reported to the base station by the terminal _CA And maximum linear transmitting power corresponding to the power grade of the carrier aggregation of the x frequency band and the y frequency band reported to the base station by the terminal.

In some embodiments, the uplink time ratio of the normalized uplink carrier aggregation is Duty _NR,x ·(P _NR,x /P _CA )·SARratio _NR,x +Duty _NR,y ·(P _NR,y /P _CA )·SARratio _NR,y Wherein, the Duty _NR,x Scheduling the uplink scheduling time Duty of the x-band carrier of the terminal for the base station _NR,y An uplink scheduling time ratio, P, of a y-band carrier scheduling the terminal for the base station _NR,x Maximum linear transmitting power, P, corresponding to the power grade of the x-frequency band carrier wave reported to the base station by the terminal _NR,y Maximum linear transmitting power, P, corresponding to the power level of the y-band carrier reported to the base station by the terminal _CA Maximum linear transmitting power, SARratio, corresponding to the power grade of carrier aggregation of the x frequency band and the y frequency band reported to the base station by the terminal _NR,x Is SAR compensation coefficient, SARratio, of the x frequency band of the terminal _NR,y And the SAR compensation coefficient of the y frequency band of the terminal.

In some embodiments, the SARratio _NR,x Satisfies the following conditions: when P is present _NR,x ≤23dBm,SARratio _NR,x 1 is ═ 1; when P is present _NR,x SARratio > 23dBm _NR,x 50%/maxuplinkdtycycle-PC 2-FB1-x, wherein the maxuplinkdtycycle-PC 2-FR1-x is the maximum schedulable uplink time ratio capability of an x-band carrier reported to the base station by the terminal when the carrier is transmitted at a power level of 26 dBm; the SARratio _NR,y Satisfies the following conditions: when P is present _NR,y ≤23dBm,SARratio _NR,y 1 is ═ 1; when P is present _NR,y SARratio > 23dBm _NR,y 50%/maxUpLinkDutyCycle-PC 2-FB1-y, wherein maxUpLinkDutyCycle-PC2-FR1-y is the maximum schedulable uplink time ratio capacity of the y frequency band carrier which is reported to the base station by the terminal when the y frequency band carrier is transmitted at the power level of 26 dBm.

In some embodiments, the predetermined difference is 3 dB.

According to another aspect of the present disclosure, there is provided a terminal including: a memory; and a processor coupled to the memory, the processor configured to perform the method as previously described based on instructions stored in the memory.

According to another aspect of the present disclosure, there is provided a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the method as previously described.

In the above control method, a power level parameter Δ P is introduced _{PowerClass,CA} According to the parameter Δ P _{PowerClass,CA} Adjusting the upper limit value and the lower limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_L} Further adjusting the actual maximum transmitting power P of the terminal carrier aggregation _CMAX Make the adjusted actual maximum transmitting power P of the terminal carrier aggregation _CMAX Satisfy P _{CMAX_L} ≤P _CMAX ≤P _{CMAX_H} Therefore, the average power transmitted by the terminal meets the SAR regulation requirement.

Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:

fig. 1 is a flow chart illustrating a control method for terminal carrier aggregation power in accordance with some embodiments of the present disclosure;

fig. 2 is a schematic diagram illustrating a structure of a terminal according to some embodiments of the present disclosure;

FIG. 3 is a schematic diagram illustrating a structure of a terminal according to further embodiments of the present disclosure;

fig. 4 is a schematic diagram illustrating a structure of a terminal according to further embodiments of the present disclosure.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Fig. 1 is a flow chart illustrating a control method for terminal carrier aggregation power according to some embodiments of the present disclosure. As shown in fig. 1, the control method includes steps S102 to S106. The control method may be performed in a terminal.

In step S102, a difference Δ P between the adjusted transmission power level of the terminal and the current transmission power level is determined according to the uplink time ratio of the uplink carrier aggregation scheduled by the base station, the capability information reported to the base station by the terminal, and the maximum transmission power of the carrier aggregation configured by the base station for the terminal _{PowerClass,CA} 。

It should be noted that the difference between the adjusted transmission power level of the terminal and the current transmission power level can be defined as Δ P _{PowerClass,CA} Can also be expressed by delta P _Powerclass Or Δ P _{Powerclass，interBandCA} To indicate. In the following,. DELTA.P _{PowerClass,CA} The above difference is shown for explanation.

In some embodiments, the capability information reported to the base station by the terminal includes: the transmitting power grade of the carrier aggregation of the terminal, the transmitting power grade of each frequency band in the carrier aggregation and the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power grade is 26 dBm.

In some embodiments, the difference Δ P between the adjusted transmission power level of the terminal and the current transmission power level is determined according to the uplink time ratio of uplink carrier aggregation scheduled by the base station, the capability information reported to the base station by the terminal, and the maximum transmission power of carrier aggregation configured by the base station for the terminal _{PowerClass,CA} The step (b) may comprise:

determining the difference Δ P in case of at least one of the following three cases (L1) to (L3) _{PowerClass,CA} A predetermined difference (e.g., 3dB) greater than 0 and less than or equal to 6dB (decibel):

(L1) the maximum transmit power for carrier aggregation for the base station configuration terminal is less than or equal to 23dBm (decibel-milliwatt).

(L2) the maximum schedulable uplink time ratio capability signaling reported by the terminal with the terminal power level of 26dBm is default and the uplink time ratio of the normalized uplink carrier aggregation within a predetermined evaluation time exceeds (i.e. is greater than) 50%, wherein the predetermined evaluation time is not less than the transmission time of 1 radio frame.

(L3) the maximum schedulable uplink time ratio capability signaling reported by the terminal under the condition that the terminal power level is 26dBm has no default and the uplink time ratio of the normalized uplink carrier aggregation within the predetermined evaluation time exceeds the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power level is 26dBm, wherein the predetermined evaluation time is not less than the transmission time of 1 radio frame.

In the case of other cases than the above-described three cases (L1) to (L3), the difference value Δ P is determined _{PowerClass,CA} Is 0 dB.

In other embodiments, the difference Δ P between the adjusted transmission power level of the terminal and the current transmission power level is determined according to the uplink time ratio of uplink carrier aggregation scheduled by the base station, the capability information reported to the base station by the terminal, and the maximum transmission power of carrier aggregation configured by the base station for the terminal _{PowerClass,CA} Comprises the following steps:

the following fourDetermining the difference Δ P in case of at least one of the situations (P1) to (P4) _{PowerClass,CA} Is 0 dB:

(P1) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, and the uplink time occupancy of one frequency band carrier in a carrier aggregation combination does not exceed (i.e., is less than or equal to) 20%, and the uplink time occupancy of another frequency band carrier does not exceed the maximum schedulable uplink time occupancy reported by the terminal under the scenario that the uplink time occupancy of the one frequency band carrier does not exceed 20% and the terminal power level is 26 dBm.

(P2) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, the uplink time occupancy of one frequency band carrier in a carrier aggregation combination is greater than 20% and does not exceed 35%, and the uplink time occupancy of the other frequency band carrier is not greater than the maximum schedulable uplink time occupancy reported by the terminal under the situation that the uplink time occupancy of the one frequency band carrier is greater than 20% and does not exceed 35% under the situation that the terminal power level is 26 dBm.

(P3) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, the uplink time occupancy of one frequency band carrier in a carrier aggregation combination is greater than 35% and does not exceed 40%, and the uplink time occupancy of the other frequency band carrier is not greater than the maximum schedulable uplink time occupancy reported by the terminal under the situation that the uplink time occupancy of the one frequency band carrier is greater than 35% and does not exceed 40% under the situation that the terminal power level is 26 dBm.

(P4) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, the uplink time occupancy of one frequency band carrier in a carrier aggregation combination is greater than 40% and does not exceed 70%, and the uplink time occupancy of the other frequency band carrier is not greater than the maximum schedulable uplink time occupancy reported by the terminal under the situation that the uplink time occupancy of the one frequency band carrier is greater than 40% and does not exceed 70%, under the situation that the terminal power level is 26 dBm.

On removingIn the case of the other cases than the four cases (P1) to (P4), the difference Δ P is determined _{PowerClass,CA} Is a predetermined difference greater than 0 and equal to or less than 6dB (e.g., the predetermined difference is 3 dB).

determining the difference Δ P in the case where at least one of the following four cases (Q1) to (Q4) occurs _{PowerClass,CA} Is 0 dB:

(Q1) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, and the uplink time occupancy of one frequency band carrier in a carrier aggregation combination does not exceed 30%, and the uplink time occupancy of the other frequency band carrier does not exceed the maximum schedulable uplink time occupancy reported by the terminal under the situation that the uplink time occupancy of the one frequency band carrier does not exceed 30% under the condition that the terminal power level is 26 dBm.

(Q2) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, and the uplink time occupancy of one frequency band carrier in a carrier aggregation combination is greater than 30% and does not exceed 40%, and the uplink time occupancy of the other frequency band carrier is not greater than the maximum schedulable uplink time occupancy reported by the terminal under the situation that the uplink time occupancy of the one frequency band carrier is greater than 30% and does not exceed 40% under the situation that the terminal power level is 26 dBm.

(Q3) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, and the uplink time occupancy of one frequency band carrier in a carrier aggregation combination is greater than 40% and does not exceed 60%, and the uplink time occupancy of the other frequency band carrier is not greater than the maximum schedulable uplink time occupancy reported by the terminal under the situation that the uplink time occupancy of the one frequency band carrier is greater than 40% and does not exceed 60%, under the situation that the terminal power level is 26 dBm.

(Q4) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, and the uplink time occupancy of one frequency band carrier in a carrier aggregation combination is greater than 60% and does not exceed 80%, and the uplink time occupancy of the other frequency band carrier is not greater than the maximum schedulable uplink time occupancy reported by the terminal under the situation that the uplink time occupancy of the one frequency band carrier is greater than 60% and does not exceed 80%, under the situation that the terminal power level is 26 dBm.

In the case of other cases than the above-described four cases (Q1) to (Q4), the difference Δ P is determined _{PowerClass,CA} Is a predetermined difference greater than 0 and equal to or less than 6 dB.

In the 3GPP (3rd Generation Partnership Project) standard, Power class denotes the Power class of the terminal, including Power class1,1.5,2,3,4,5, namely PC1, PC1.5, PC2, PC3, PC4 and PC5, where PC1 ═ 31dBm, PC1.5 ═ 29dBm, PC2 ═ 26dBm, and PC3 ═ 23dBm are the default terminal Power classes.

Therefore, the maximum schedulable uplink time ratio capability signaling reported by the terminal under the condition that the terminal power class is 26dBm is the PC2 maximum schedulable uplink time ratio capability signaling maxuplinkdycycle-interBandCA-PC 2 reported by the terminal.

In some embodiments, the uplink time ratio of the normalized uplink carrier aggregation is

Duty _NR,x ·(P _NR,x /P _CA )+Duty _NR,y ·(P _NR,y /P _CA )， (1)

Therein, Duty _NR,x Scheduling terminal's uplink scheduling time Duty, Duty for base station _NR,y Scheduling uplink scheduling time ratio, P, of y-band carrier of terminal for base station _NR,x The maximum linear transmitting power (unit is mW (milliwatt)) corresponding to the power level of the x-frequency band carrier wave reported to the base station by the terminal is P _NR,y Maximum linear transmitting power (unit mW (milliwatt)) corresponding to power level of y-band carrier wave reported to a base station by a terminal，P _CA And maximum linear transmitting power (unit is mW) corresponding to the power level of carrier aggregation of the x frequency band and the y frequency band reported to the base station by the terminal.

Duty _NR,x And Duty _NR,y The uplink time ratio of the terminal is scheduled for the base station, and the terminal can be obtained by self calculation. Here, Duty _NR,x 、Duty _NR,y 、P _NR,x 、P _NR,y And P _CA Both belong to known parameters of the terminal, and the x-band and the y-band are known frequency bands. For example, the x-band is different from the y-band.

In other embodiments, the uplink time ratio of the normalized uplink carrier aggregation is

Duty _NR,x ·(P _NR,x /P _CA )·SARratio _NR,x +Duty _NR,y ·(P _NR,y /P _CA )·SARratio _NR,y ， (2)

Therein, Duty _NR,x Scheduling terminal's uplink scheduling time Duty, Duty for base station _NR,y Scheduling uplink scheduling time ratio, P, of y-band carrier of terminal for base station _NR,x Maximum linear transmitting power, P, corresponding to the power grade of the x-frequency band carrier wave reported to the base station by the terminal _NR,y Maximum linear transmitting power, P, corresponding to the power grade of the y-band carrier reported to the base station by the terminal _CA Maximum linear transmission power (SARratio) corresponding to power levels of carrier aggregation of the frequency band x and the frequency band y reported to a base station by a terminal _NR,x SAR compensation coefficient, SARratio, for the x-band of a terminal _NR,y And the SAR compensation coefficient of the y frequency band of the terminal.

In some embodiments, the SARratio _NR,x Satisfies the following conditions:

when P is present _NR,x ≤23dBm,SARratio _NR,x ＝1；

When P is present _NR,x > 23dBm (e.g., P) _NR,x 26dBm), SARratio _NR,x ＝50％/maxUplinkDutyCycle-PC2-FB1-x，

The maxUpLinkDutyCycle-PC2-FR1-x is the maximum schedulable uplink time ratio capability of the x-frequency band carrier reported to the base station by the terminal when the carrier is transmitted at the power level of 26 dBm.

Here, maxUpLinkDutyCycle-PC2-FR1-x has been defined in version 38.331-g30, namely: maxUplinkDutyCycle-PC2-FR1-x ENUMERATED { n60, n70, n80, n90, n100} OPTIONAL.

In some embodiments, the SARratio _NR,y Satisfies the following conditions:

when P is present _NR,y ≤23dBm,SARratio _NR,y ＝1；

When P is present _NR,y > 23dBm (e.g., P) _NR,y 26dBm), SARratio _NR,y ＝50％/maxUplinkDutyCycle-PC2-FB1-y,

Wherein maxUpLinkDutyCycle-PC2-FR1-y is the maximum schedulable uplink time ratio capability of the y-band carrier reported to the base station by the terminal when the y-band carrier is transmitted at the power level of 26 dBm. Here, maxUpLinkDutyCycle-PC2-FR1-y has been defined in version 38.331-g30, namely: maxUplinkDutyCycle-PC2-FR1-y ENUMERATED { n60, n70, n80, n90, n100} OPTIONAL.

In step S104, in case that the actual average transmission power of the terminal exceeds the limit of the predetermined SAR, the difference Δ P between the adjusted transmission power level of the terminal and the current transmission power level is determined _{PowerClass,CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} 。

In some embodiments, the difference Δ P between the adjusted transmission power level of the terminal and the current transmission power level is determined by the following relation _{PowerClass,CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal _{CMAX_H} And a lower limit value P _{CMAX_L} ：

P _{CMAX_H} ＝MIN{10log10∑P _EMAX,c ,P _EMAX,CA ,(P _PowerClass -ΔP _{PowerClass,CA} )}， (3)

Wherein, P _EMAX,c Configuring the maximum transmitting power of the terminal on a carrier c for a base station, wherein c is a positive integer and P _EMAX,CA Configuring a base station with a maximum transmit power, P, for carrier aggregation of a terminal _PowerClass Maximum transmit power level, mpr, for terminal carrier aggregation _c Is the maximum transmit power back-off value, Δ mpr, of the terminal _c Is the maximum transmit power back-off difference, a-mpr, of the terminal _c For additional maximum transmit power back-off values, Δ t _C,c Compensation parameters (e.g., 1.41 or 1), Δ t, for terminal relaxation of transmit power at band edges _IB,c Compensating parameter for insertion loss of transmission power of terminal, delta t _RxSRS,c Compensation parameters pmpr for a predetermined scenario (e.g., a scenario indicating SRS (sounding Reference signal) -TxSwitch capability or SRS transmission on a downlink dedicated carrier) when transmitting an uplink sounding Reference signal for a terminal _c The power back-off parameter is adopted by the terminal under the condition of considering electromagnetic compatibility or radiation absorption requirement. Here, P _EMAX,c 、P _EMAX,CA 、P _PowerClass 、mpr _c 、Δmpr _c 、a-mpr _c 、Δt _C,c 、Δt _IB,c 、Δt _RxSRS,c And pmpr _c All belong to parameters in the 3GPP standard, and therefore, these parameters belong to parameters known to the terminal.

At the above upper limit value P with respect to the maximum transmission power of the terminal _{CMAX_H} In the calculation of (c), the minimum value of the following 3 items (a) to (c) is selected:

(a)10log10∑P _EMAX,c ，

(b)P _EMAX,CA ，

(c)P _PowerClass -ΔP _{Powerclass,CA} 。

at the above-mentioned lower limit value P with respect to the maximum transmission power of the terminal _{CMAX_L} In the calculation process of (a), the minimum value of the following 3 items (d) to (f) is selected:

(d)

(e)P _EMAX,CA ，

(f)P _PowerClass -ΔP _{PowerClass,CA} ，

here, the entry (d) is the minimum value of the following 3 sub-entries (d1) to (d3), and is summed up by the number of carriers (for example, c carriers).

(d1)P _EMAX,c /Δt _C,c ，

(d2)(P _Powerclass -ΔP _{PowerClass,CA} )/MAX(mpr _c ·Δmpr _c ,a-mpr _c )·Δt _C,c ·Δt _IB,c ·Δt _RxSRS,c ，

(d3)(P _PowerClass -ΔP _{PowerClass,CA} )/pmpr _c 。

In some embodiments, the difference Δ P is based on _{PowerClass,CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} Comprises the following steps: according to the difference value delta P between the transmitting power grade adjusted by the terminal and the current transmitting power grade _{PowerClass,CA} Upper limit value P for reducing maximum transmitting power of terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} 。

For example, in step S102, the difference Δ P is determined _{PowerClass,CA} In the case of a predetermined difference value greater than 0 and equal to or less than 6dB (e.g., the predetermined difference value is 3dB), the predetermined difference value is substituted into the above-described calculation relations (3) and (4) of the upper limit value and the lower limit value of the maximum transmission power, and the upper limit value and the lower limit value of the maximum transmission power can be reduced.

In step S106, the upper limit value P of the maximum transmission power of the terminal carrier aggregation is adjusted _{CMAX_H} And a lower limit value P _{CMAX_L} Then, the actual maximum transmitting power P of the terminal carrier aggregation is adjusted _CMAX Make the adjusted actual maximum transmitting power P of the terminal carrier aggregation _CMAX Satisfy P _{CMAX_L} ≤P _CMAX ≤P _{CMAX_H} 。

In some embodiments, this step S106 includes: reducing the actual maximum transmit power P for carrier aggregation at a terminal _CMAX . Here, the actual maximum transmit power P for carrier aggregation for the terminal may be reduced using techniques known to those skilled in the art _CMAX And will not be described in detail herein.

To this end, a control method for terminal carrier aggregation power according to some embodiments of the present disclosure is provided. The control method comprises the following steps: determining the difference value delta P between the adjusted transmitting power grade of the terminal and the current transmitting power grade according to the uplink time ratio of uplink carrier aggregation scheduled by the base station and the capability information reported to the base station by the terminal _{PowerClass,CA} (ii) a Under the condition that the actual average transmitting power of the terminal exceeds the limit of the preset SAR, the difference value delta P between the transmitting power grade adjusted by the terminal and the current transmitting power grade _{PowerClass,CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} (ii) a And adjusting the upper limit value P of the maximum transmission power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} Then, the actual maximum transmitting power P of the terminal carrier aggregation is adjusted _CMAX So that the adjusted actual maximum transmitting power P of the terminal carrier aggregation _CMAX Satisfy P _{CMAX_L} ≤P _CMAX ≤P _{CMAX_H} . In the method, a power level parameter Δ P is introduced _{PowerClass,CA} According to the parameter Δ P _{PowerClass,CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} Further adjusting the actual maximum transmitting power P of the terminal carrier aggregation _CMAX Make the adjusted actual maximum transmitting power P of the terminal carrier aggregation _CMAX Satisfy P _{CMAX_L} ≤P _CMAX ≤P _{CMAX_H} Therefore, the average power transmitted by the terminal meets the SAR regulation requirement. Therefore, the capacity capability of the high-power terminal carrier aggregation in the center of the cell can be fully exerted.

The 3GPP standard generally considers that the terminal can implement full uplink time ratio transmission at a maximum transmission power level of 23dBm, i.e., an FDD (Frequency Division duplex) mode, and at this time, the SAR requirement is satisfied, and there is no margin in system design. The test method that is prescribed in view of SAR regulations is based on an average power test over a period of time. Thus, when the terminal operates in a NR (New Radio, New air interface) SA (stand alone) high power mode (+26dBm), the standard gives a default 50% maximum uplink time to fraction (Duty Cycle) limit. So that the average power is equivalent to the 23dBm FDD mode.

The above method of the present disclosure is achieved by introducing a power level parameter Δ P _{PowerClass,CA} When the limit of SAR is exceeded, the high-power terminal can reduce the transmitting power level and ensure the effective transmitting uplink time ratio, namely the capacity performance.

Fig. 2 is a schematic diagram illustrating a structure of a terminal according to some embodiments of the present disclosure. As shown in fig. 2, the terminal includes an information analysis unit 202, a first adjustment unit 204, and a second adjustment unit 206.

The information analysis unit 202 is configured to determine a difference Δ P between the adjusted transmission power level of the terminal and the current transmission power level according to the uplink time ratio of uplink carrier aggregation scheduled by the base station, capability information reported to the base station by the terminal, and the maximum transmission power of carrier aggregation configured by the base station for the terminal _{PowerClass,CA} 。

The first adjusting unit 204 is configured to, in a case that an actual average transmission power of the terminal exceeds a limit of a predetermined electromagnetic wave absorption ratio SAR, adjust a difference Δ P between a transmission power level adjusted by the terminal and a current transmission power level _{PowerClass,CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} 。

The second adjusting unit 206 is used for adjusting the upper limit value P of the maximum transmit power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} Then, the actual maximum transmitting power P of the terminal carrier aggregation is adjusted _CMAX Make the adjusted actual maximum transmitting power P of the terminal carrier aggregation _CMAX Satisfy P _{CMAX_L} ≤P _CMAX ≤P _{CMAX_H} 。

To this end, a terminal according to some embodiments of the present disclosure is provided. In the terminal, an information analysis unit determines a power level parameter Δ P _{PowerClass,CA} The first adjusting unit is used for adjusting the parameter delta P according to the parameter delta P _{PowerClass,CA} Adjusting upper limit value P of maximum transmitting power of terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} And then the second adjusting unit adjusts the terminal carrierAggregated actual maximum transmit power P _CMAX So that the adjusted actual maximum transmitting power P of the terminal carrier aggregation _CMAX Satisfy P _{CMAX_L} ≤P _CMAX ≤P _{CMAX_H} Therefore, the average power transmitted by the terminal meets the SAR regulation requirement. Therefore, the capacity capability of the high-power terminal carrier aggregation in the center of the cell can be fully exerted.

In some embodiments, the first adjusting unit 204 is configured to adjust the transmission power level of the terminal according to a difference Δ P between the adjusted transmission power level and the current transmission power level _{PowerClass,CA} Upper limit value P for reducing maximum transmitting power of terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} . The second adjusting unit 206 is used for reducing the actual maximum transmit power P of the terminal carrier aggregation _CMAX 。

In some embodiments, the information analysis unit 202 is configured to: determining the difference Δ P in case of at least one of the following three cases (L1) to (L3) _{PowerClass,CA} For a predetermined difference value larger than 0 and less than or equal to 6dB, (L1) the base station configures that the maximum transmit power of the carrier aggregation of the terminal is less than or equal to 23dBm, (L2) the maximum schedulable uplink time share ratio capability signaling reported by the terminal under the condition that the terminal power level is 26dBm is default and the uplink time share ratio of the normalized uplink carrier aggregation within a predetermined evaluation time exceeds 50%, wherein the predetermined evaluation time is not less than the transmission time of 1 radio frame, or (L3) the maximum schedulable uplink time ratio capability signaling reported by the terminal under the condition that the terminal power level is 26dBm is not default and the uplink time ratio of the uplink carrier aggregation normalized within the predetermined evaluation time exceeds the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power level is 26dBm, wherein the predetermined evaluation time is not less than the transmission time of 1 radio frame;and determining the difference Δ P in the case of the other cases than the above three cases _{PowerClass,CA} Is 0 dB. For example, the predetermined difference is 3 dB.

In other embodiments, the information analysis unit 202 is configured to: determining the difference Δ P in case of at least one of the following four cases (P1) to (P4) _{PowerClass,CA} The maximum transmit power of carrier aggregation of the terminal is configured by the base station to be 0dB, (P1) the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, the uplink time proportion of one frequency band carrier in a carrier aggregation combination is not more than 20%, the uplink time proportion of the other frequency band carrier is not more than the maximum schedulable uplink time proportion under the condition that the terminal power level is 26dBm and reported by the terminal under the condition that the uplink time proportion of the one frequency band carrier is not more than 20%, (P2) the maximum transmit power of carrier aggregation of the terminal is configured by the base station to be default or higher than the default power level of 23dBm, the uplink time proportion of the one frequency band carrier in the carrier aggregation combination is more than 20% and not more than 35%, and the uplink time proportion of the other frequency band carrier is not more than the maximum schedulable uplink time proportion under the condition that the terminal power level is 26dBm and reported by the terminal under the condition that the uplink time proportion of the one frequency band carrier is more than 20% and not more than 35% Time to fraction, (P3) the base station configuring the maximum transmit power for the carrier aggregation for the terminal by default or above a default power level of 23dBm, and the uplink time ratio of one frequency band carrier in the carrier aggregation combination is more than 35% and not more than 40%, and the uplink time ratio of the other frequency band carrier is not more than the maximum schedulable uplink time ratio reported by the terminal under the condition that the uplink time ratio of the one frequency band carrier is more than 35% and not more than 40% and the terminal power level is 26dBm, or (P4) the base station configuring the maximum transmit power for carrier aggregation for the terminal by default or above a default power level of 23dBm, and the uplink time ratio of one frequency band carrier in the carrier aggregation combination is more than 40% and not more than 70%, and the uplink time ratio of the other frequency band carrier is not more than the terminal work reported by the terminal under the scene that the uplink time ratio of the one frequency band carrier is more than 40% and not more than 70%.The maximum schedulable uplink time ratio under the condition that the rate grade is 26 dBm; and determining the difference Δ P in the case of other situations than the above four situations _{PowerClass,CA} Is a predetermined difference greater than 0 and equal to or less than 6 dB.

In other embodiments, the information analysis unit 202 is configured to: determining the difference Δ P in the case where at least one of the following four cases (Q1) to (Q4) occurs _{PowerClass,CA} To be 0dB, (Q1) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, and the uplink time occupancy of one frequency band carrier in a carrier aggregation combination is not more than 30%, and the uplink time occupancy of the other frequency band carrier is not more than the maximum schedulable uplink time occupancy of the terminal reported by the terminal under the situation that the uplink time occupancy of the one frequency band carrier is not more than 30% under the condition that the terminal power level is 26dBm, (Q2) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than the default power level of 23dBm, and the uplink time occupancy of the one frequency band carrier in the carrier aggregation combination is more than 30% and not more than 40%, and the uplink time occupancy of the other frequency band carrier is not more than the maximum schedulable uplink time occupancy of the terminal reported under the situation that the terminal power level is 26dBm under the situation that the uplink time occupancy of the one frequency band carrier is more than 30% and not more than 40% Time to fraction, (Q3) the base station configuring the maximum transmit power for the carrier aggregation for the terminal by default or above a default power level of 23dBm, and the uplink time ratio of one frequency band carrier in the carrier aggregation combination is more than 40% and not more than 60%, and the uplink time ratio of the other frequency band carrier is not more than the maximum schedulable uplink time ratio reported by the terminal under the condition that the uplink time ratio of the one frequency band carrier is more than 40% and not more than 60% and the terminal power level is 26dBm, or (Q4) the base station configuring the maximum transmit power for carrier aggregation for the terminal by default or above a default power level of 23dBm, and the uplink time ratio of one frequency band carrier in the carrier aggregation combination is more than 60% and not more than 80%, and the uplink time ratio of the other frequency band carrier is not more than the uplink time ratio of the one frequency band carrier.The maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power level is 26dBm under the scene of 60% and not more than 80%; and determining the difference Δ P in the case of other situations than the above four situations _{PowerClass,CA} Is a predetermined difference greater than 0 and equal to or less than 6 dB.

In some embodiments, the uplink time Duty ratio of the normalized uplink carrier aggregation is Duty _NR,x ·(P _NR,x /P _CA )+Duty _NR,y ·(P _NR,y /P _CA )，

Therein, Duty _NR,x Scheduling terminal's uplink scheduling time Duty, Duty for base station _NR,y Scheduling uplink scheduling time ratio, P, of y-band carrier of terminal for base station _NR,x Maximum linear transmitting power, P, corresponding to the power grade of the x-frequency band carrier wave reported to the base station by the terminal _NR,y Maximum linear transmitting power, P, corresponding to the power grade of the y-band carrier reported to the base station by the terminal _CA And maximum linear transmitting power corresponding to the power grade of carrier aggregation of the x frequency band and the y frequency band reported to the base station by the terminal.

In other embodiments, the uplink time Duty ratio of the normalized uplink carrier aggregation is Duty _NR,x ·(P _NR,x /P _CA )·SARratio _NR,x +Duty _NR,y ·(P _NR,y /P _CA )·SARratio _NR,y Wherein, the Duty _NR,x Scheduling the uplink scheduling time Duty ratio, Duty, of the x-band carrier of the terminal for the base station _NR,y Scheduling uplink scheduling time ratio, P, of y-band carrier of terminal for base station _NR,x Maximum linear transmitting power, P, corresponding to the power grade of the x-frequency band carrier wave reported to the base station by the terminal _NR,y Maximum linear transmitting power, P, corresponding to the power grade of the y-band carrier reported to the base station by the terminal _CA Maximum linear transmitting power, SARratio, corresponding to the power grade of carrier aggregation of the frequency band x and the frequency band y reported to the base station by the terminal _NR,x SAR compensation coefficient, SARratio, for the x-band of a terminal _NR,y And compensating the coefficient for the SAR of the y frequency band of the terminal.

In some casesIn the examples, the SARratiG _NR,x Satisfies the following conditions:

when P is present _NR,x ≤23dBm,SARratio _NR,x ＝1；

When P is present _NR,x SARratio > 23dBm _NR,x ＝50％/maxUplinkDutyCycle-PC2-FB1-x，

The uplink time ratio capacity of the terminal is the maximum schedulable uplink time ratio capacity of the carrier wave of the x frequency band reported to the base station by the terminal when the carrier wave is transmitted at the power level of 26 dBm.

In some embodiments, the SARratio _NR,y Satisfies the following conditions:

when P is present _NR,y ≤23dBm,SARratio _NR,y ＝1；

When P is present _NR,y SARratio > 23dBm _NR,y ＝50％/maxUplinkDutyCycle-PC2-FB1-y,

The maximum schedulable uplink time ratio capability of the y-frequency band carrier reported to the base station by the terminal when the y-frequency band carrier is transmitted at the power level of 26dBm is represented by maxUpLinkDutyCycle-PC2-FR 1-y.

In some embodiments, the first adjusting unit 204 is configured to adjust the difference Δ P between the adjusted transmission power level of the terminal and the current transmission power level according to the following relation _{PowerClass,CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} ：

P _CMAX _ _H ＝MIN{10log10∑P _EMAX,c ,P _EMAX,CA ,(P _PowerClass -ΔP _{Powerclass,CA} )}，

Wherein, P _EMAX,c Configuring the maximum transmitting power of the terminal on a carrier c for a base station, wherein c is a positive integer and P _EMAX,CA Configuring a base station with a maximum transmit power, P, for carrier aggregation of a terminal _PowerClass Maximum transmit power level, mpr, for terminal carrier aggregation _c Is the maximum transmit power back-off value, Δ, of the terminalmpr _c Is the maximum transmit power back-off difference, a-mpr, of the terminal _c For additional maximum transmit power back-off values, Δ t _C,c Relaxation of the Compensation parameter, Deltat, of the Transmission Power for the terminal at the band edge _IB,c Compensating parameter for insertion loss of transmission power of terminal, delta t _RxSRS,c Compensation parameters, pmpr, employed in a predetermined scenario when transmitting uplink sounding reference signals for a terminal _c The power back-off parameter is adopted by the terminal under the condition of considering electromagnetic compatibility or radiation absorption requirement.

Fig. 3 is a schematic diagram illustrating a structure of a terminal according to further embodiments of the present disclosure. The terminal includes a memory 310 and a processor 320. Wherein:

the memory 310 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory is used for storing instructions in the embodiment corresponding to fig. 1.

Processor 320 is coupled to memory 310 and may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 320 is configured to execute instructions stored in the memory such that the terminal transmit average power meets SAR regulatory requirements.

In some embodiments, the terminal 400 may also include a memory 410 and a processor 420, as shown in fig. 4. Processor 420 is coupled to memory 410 by a BUS 430. The terminal 400 may be further connected to an external storage device 450 through a storage interface 440 for accessing external data, and may be further connected to a network or another computer system (not shown) through a network interface 460, which will not be described in detail herein.

In this embodiment, the data instructions are stored in the memory and then processed by the processor, so that the average power transmitted by the terminal meets the SAR regulations.

In other embodiments, the present disclosure also provides a computer-readable storage medium on which computer program instructions are stored, which instructions, when executed by a processor, implement the steps of the method in the corresponding embodiment of fig. 1. As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A control method for carrier aggregation power of a terminal comprises the following steps:

determining the difference value delta P between the adjusted transmitting power grade of the terminal and the current transmitting power grade according to the uplink time ratio of the uplink carrier aggregation scheduled by the base station, the capability information reported to the base station by the terminal and the maximum transmitting power of the carrier aggregation configured by the base station _{PowerClass，CA} ；

Under the condition that the actual average transmitting power of the terminal exceeds the limit of a preset electromagnetic wave absorption ratio SAR, according to the difference value delta P between the transmitting power grade adjusted by the terminal and the current transmitting power grade _{PowerClass，CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} (ii) a And

adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} Then, the actual maximum transmitting power P of the terminal carrier aggregation is adjusted _CMAX Making the adjusted actual maximum transmitting power P of the terminal carrier aggregation _CMAX Satisfy P _{CMAX_L} ≤P _CMAX ≤P _{CMAX_H} 。

2. The control method according to claim 1,

according to the difference value delta P _{PowerClass，CA} Adjusting the terminal carrier aggregationUpper limit value P of maximum transmitting power _{CMAX_H} And a lower limit value P _{CMAX_L} Comprises the following steps: according to the difference value delta P between the adjusted transmitting power grade of the terminal and the current transmitting power grade _{PowerClass，CA} Reducing the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} (ii) a And

adjusting the actual maximum transmitting power P of the terminal carrier aggregation _CMAX Comprises the following steps: reducing the actual maximum transmit power P of the terminal carrier aggregation _CMAX 。

3. The control method according to claim 1,

the capability information reported to the base station by the terminal comprises: the transmitting power grade of the carrier aggregation of the terminal, the transmitting power grade of each frequency band in the carrier aggregation and the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power grade is 26 dBm;

determining the difference value delta P between the adjusted transmitting power grade of the terminal and the current transmitting power grade according to the uplink time ratio of the uplink carrier aggregation scheduled by the base station, the capability information reported to the base station by the terminal and the maximum transmitting power of the carrier aggregation configured by the base station _{PowerClass，CA} Comprises the following steps:

determining the difference Δ P in case of at least one of the following three cases (L1) to (L3) _{PowerClass，CA} Is a predetermined difference greater than 0 and equal to or less than 6dB,

(L1) the base station configuring a maximum transmit power for carrier aggregation for the terminal to be less than or equal to 23dBm,

(L2) the signaling of the maximum schedulable uplink time ratio capability reported by the terminal under the condition that the terminal power level is 26dBm is default, and the uplink time ratio of the uplink carrier aggregation normalized in the preset evaluation time exceeds 50%, wherein the preset evaluation time is not less than the sending time of 1 radio frame, or

(L3) the maximum schedulable uplink time ratio capability signaling reported by the terminal when the terminal power level is 26dBm is not default and the uplink time ratio of the normalized uplink carrier aggregation within the predetermined evaluation time exceeds the maximum schedulable uplink time ratio reported by the terminal when the terminal power level is 26dBm, wherein the predetermined evaluation time is not less than the transmission time of 1 radio frame; and

in the case of other situations than the above three situations, the difference Δ P is determined _{PowerClass，CA} Is 0 dB.

4. The control method according to claim 1,

the capability information reported to the base station by the terminal comprises: the transmitting power grade of the carrier aggregation of the terminal, the transmitting power grade of each frequency band in the carrier aggregation and the maximum schedulable uplink time ratio reported by the terminal under the condition that the terminal power grade is 26 dBm; (ii) a

determining the difference Δ P in case of at least one of the following four cases (P1) to (P4) _{PowerClass，CA} Is the amount of the magnetic flux to be 0dB,

(P1) the base station configures the maximum transmitting power of the carrier aggregation of the terminal to be default or higher than the default power level of 23dBm, the uplink time proportion of one frequency band carrier in the carrier aggregation combination does not exceed 20%, and the uplink time proportion of the other frequency band carrier does not exceed the maximum schedulable uplink time proportion reported by the terminal under the condition that the uplink time proportion of the one frequency band carrier does not exceed 20% under the condition that the terminal power level is 26dBm,

(P2) the base station configures the maximum transmitting power of the carrier aggregation of the terminal to be default or higher than a default power level of 23dBm, the uplink time proportion of one frequency band carrier in a carrier aggregation combination is more than 20% and not more than 35%, and the uplink time proportion of the other frequency band carrier is not more than the maximum schedulable uplink time proportion reported by the terminal under the condition that the uplink time proportion of the one frequency band carrier is more than 20% and not more than 35% and the terminal power level is 26dBm,

(P3) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, the uplink time occupancy of one frequency band carrier in a carrier aggregation combination is greater than 35% and not more than 40%, and the uplink time occupancy of the other frequency band carrier is not more than the maximum schedulable uplink time occupancy of the terminal reported by the terminal under the situation that the uplink time occupancy of the one frequency band carrier is greater than 35% and not more than 40%, or the maximum schedulable uplink time occupancy is reported by the terminal under the situation that the terminal power level is 26dBm, or

(P4) the base station configures that the maximum transmit power of carrier aggregation of the terminal is default or higher than a default power level of 23dBm, and the uplink time occupancy of one frequency band carrier in a carrier aggregation combination is greater than 40% and does not exceed 70%, and the uplink time occupancy of the other frequency band carrier is not greater than the maximum schedulable uplink time occupancy reported by the terminal under the situation that the uplink time occupancy of the one frequency band carrier is greater than 40% and does not exceed 70%, under the situation that the terminal power level is 26 dBm; and

in the case of other situations than the above four situations, the difference Δ P is determined _{PowerClass，CA} Is a predetermined difference greater than 0 and equal to or less than 6 dB.

5. The control method according to claim 1,

determining the uplink time ratio of uplink carrier aggregation scheduled by a base station, capability information reported to the base station by a terminal and the maximum transmitting power of carrier aggregation configured by the base stationDifference value delta P between transmission power grade adjusted by terminal and current transmission power grade _{PowerClass，CA} Comprises the following steps:

determining the difference Δ P in the case where at least one of the following four cases (Q1) to (Q4) occurs _{PowerClass，CA} Is the amount of the magnetic flux to be 0dB,

(Q1) the base station configures the maximum transmitting power of the carrier aggregation of the terminal to be default or higher than the default power level of 23dBm, the uplink time occupation ratio of one frequency band carrier in a carrier aggregation combination does not exceed 30%, and the uplink time occupation ratio of the other frequency band carrier does not exceed the maximum schedulable uplink time occupation ratio under the condition that the terminal power level is 26dBm and reported by the terminal under the scene that the uplink time occupation ratio of the one frequency band carrier does not exceed 30%,

(Q2) the base station configures the maximum transmitting power of the carrier aggregation of the terminal to be default or higher than the default power level of 23dBm, the uplink time occupation ratio of one frequency band carrier in the carrier aggregation combination is more than 30% and not more than 40%, and the uplink time occupation ratio of the other frequency band carrier is not more than the maximum schedulable uplink time occupation ratio reported by the terminal under the condition that the uplink time occupation ratio of the one frequency band carrier is more than 30% and not more than 40% and the terminal power level is 26dBm,

(Q3) the base station configures the maximum transmit power of carrier aggregation of the terminal by default or higher than a default power level of 23dBm, and the uplink time occupancy of one frequency band carrier in a carrier aggregation combination is greater than 40% and not more than 60%, and the uplink time occupancy of the other frequency band carrier is not more than the maximum schedulable uplink time occupancy reported by the terminal under the situation that the uplink time occupancy of the one frequency band carrier is greater than 40% and not more than 60%, or the maximum schedulable uplink time occupancy reported by the terminal under the situation that the terminal power level is 26dBm, or

(Q4) the base station configuring, by default, a maximum transmit power of carrier aggregation of the terminal that is 23dBm higher than a default power level, and an uplink time occupancy of one frequency band carrier in a carrier aggregation combination is greater than 60% and not more than 80%, and an uplink time occupancy of another frequency band carrier is not more than a maximum schedulable uplink time occupancy reported by the terminal under a scenario that the uplink time occupancy of the one frequency band carrier is greater than 60% and not more than 80% under a condition that the terminal power level is 26 dBm; and

6. The control method according to claim 1,

the difference value delta P between the adjusted transmission power level of the terminal and the current transmission power level is obtained through the following relational expression _{PowerClass，CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} ：

P _{CMAX_H} ＝MIN{10log10∑P _EMAX，c ，P _EMAX，CA ，(P _PowerClass -ΔP _{PowerClass，CA} )}，

Wherein, P _EMAX，c Configuring, for the base station, a maximum transmit power of the terminal on a carrier c, c being a positive integer,

P _EMAX，CA configuring a maximum transmission power for carrier aggregation of the terminal for the base station,

P _PowerClass a maximum transmit power level for the terminal carrier aggregation,

mpr _c is the maximum transmit power back-off value for the terminal,

Δmpr _c for the maximum transmit power back-off difference for the terminal,

a-mpr _c for the additional maximum transmit power back-off value,

Δt _C，c the compensation parameters for the transmit power are relaxed at the band edges for the terminal,

Δt _IB，c an insertion loss compensation parameter for a transmit power of the terminal,

Δt _RxSRS，c a compensation parameter used in a predetermined scenario when transmitting an uplink sounding reference signal for the terminal,

pmpr _c the power back-off parameter adopted by the terminal under the condition of considering electromagnetic compatibility or radiation absorption requirement is adopted.

7. The control method according to claim 3, wherein the uplink time ratio of the normalized uplink carrier aggregation is

Duty _NR，x ·(P _NR，x /P _CA )+Duty _NR，y ·(P _NR，y /P _CA )，

Therein, Duty _NR，x The uplink scheduling time of the x frequency band carrier of the terminal is scheduled to the base station,

Duty _NR，y the uplink scheduling time of the y-band carrier of the terminal is scheduled to the base station,

P _NR，x the maximum linear transmitting power corresponding to the power level of the x frequency band carrier reported to the base station by the terminal,

P _NR，y the maximum linear transmitting power corresponding to the power level of the y-band carrier reported to the base station by the terminal,

P _CA and maximum linear transmitting power corresponding to the power grade of the carrier aggregation of the x frequency band and the y frequency band reported to the base station by the terminal.

8. The control method according to claim 3, wherein the uplink time ratio of the normalized uplink carrier aggregation is

Duty _NR，x ·(P _NR，x /P _CA )·SARratio _NR，x +Duty _NR，y ·(P _NR，y /P _CA )·SARratio _NR，y ，

Duty _NR，y scheduling uplink of the y-band carrier of the terminal for the base stationThe proportion of the scheduling time is,

P _CA the maximum linear transmitting power corresponding to the power grade of the carrier aggregation of the x frequency band and the y frequency band reported to the base station by the terminal,

SARratio _NR，x the SAR compensation coefficient of the x frequency band of the terminal,

SARratio _NR，y and the SAR compensation coefficient of the y frequency band of the terminal.

9. The control method according to claim 8,

the SARratio _NR，x Satisfies the following conditions: when P is present _NR，x ≤23dBm，SARratio _NR，x 1 is ═ 1; when P is present _NR，x SARratio > 23dBm _NR，x 50%/maxuplinkdtycyclec-PC 2-FR1-x, wherein the maxuplinkdtycyclec-PC 2-FR1-x is the maximum schedulable uplink time ratio capability of an x-band carrier reported to the base station by the terminal when the carrier is transmitted at a power level of 26 dBm;

the SARratio _NR，y Satisfies the following conditions: when P is present _NR，y ≤23dBm，SARratio _NR，y 1 is ═ 1; when P is present _NR，y SARratio > 23dBm _NR，y The uplink scheduling method comprises the steps of (1) 50%/maxuplinkdtycycle-PC 2-FR1-y, wherein maxuplinkdtycycle-PC 2-FR1-y is the maximum schedulable uplink time ratio capacity of a y-frequency band carrier reported to a base station by a terminal when the y-frequency band carrier is transmitted at a power level of 26 dBm.

10. The control method according to any one of claims 3 to 5,

the predetermined difference is 3 dB.

11. A terminal, comprising:

information analysisA unit, configured to determine, according to an uplink time ratio of uplink carrier aggregation scheduled by a base station, capability information reported to the base station by a terminal, and a maximum transmit power of carrier aggregation configured by the base station for the terminal, a difference Δ P between an adjusted transmit power level of the terminal and a current transmit power level _{PowerClass，CA} ；

A first adjusting unit, configured to, when an actual average transmission power of a terminal exceeds a limit of a predetermined electromagnetic wave absorption ratio SAR, adjust a difference Δ P between a transmission power level adjusted by the terminal and a current transmission power level _{PowerClass，CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} (ii) a And

a second adjusting unit, configured to adjust an upper limit value P of a maximum transmit power for carrier aggregation of the terminal _{CMAX_H} And a lower limit value P _{CMAX_L} Then, the actual maximum transmitting power P of the terminal carrier aggregation is adjusted _CMAX Making the adjusted actual maximum transmitting power P of the terminal carrier aggregation _CMAX Satisfy P _{CMAX_L} ≤P _CMAX ≤P _{CMAX_H} 。

12. The terminal of claim 11, wherein,

the first adjusting unit is used for adjusting the difference value delta P between the transmitting power grade adjusted by the terminal and the current transmitting power grade _{PowerClass，CA} Reducing the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} ；

The second adjusting unit is used for reducing the actual maximum transmitting power P of the terminal carrier aggregation _CMAX 。

13. The terminal of claim 11, wherein,

the information analysis unit is configured to:

14. The terminal of claim 11, wherein,

the information analysis unit is configured to:

(P1) the base station configures the maximum transmitting power of the carrier aggregation of the terminal to be default or higher than a default power level of 23dBm, the uplink time ratio of one frequency band carrier in a carrier aggregation combination does not exceed 20%, the uplink time ratio of the other frequency band carrier does not exceed the maximum schedulable uplink time ratio which is reported by the terminal under the condition that the uplink time ratio of the one frequency band carrier does not exceed 20% and the terminal power level is 26dBm,

15. The terminal of claim 11, wherein,

the information analysis unit is configured to:

(Q1) the base station configures the maximum transmitting power of the carrier aggregation of the terminal to be default or higher than the default power level of 23dBm, the uplink time proportion of one frequency band carrier in the carrier aggregation combination does not exceed 30%, the uplink time proportion of the other frequency band carrier does not exceed the maximum schedulable uplink time proportion reported by the terminal under the condition that the uplink time proportion of the one frequency band carrier does not exceed 30% and the terminal power level is 26dBm,

16. The terminal of claim 11, wherein,

the first adjusting unit is used for adjusting the difference value delta P between the transmitting power level adjusted by the terminal and the current transmitting power level according to the following relational expression _{PowerClass，CA} Adjusting the upper limit value P of the maximum transmitting power of the terminal carrier aggregation _{CMAX_H} And a lower limit value P _{CMAX_L} ：

mpr _c is the maximum transmit power back-off value for the terminal,

Δmpr _c is the maximum transmission power of the terminalThe difference value of the rate back-off,

a-mpr _c for the additional maximum transmit power back-off value,

17. The terminal of claim 13, wherein,

the uplink time ratio of the normalized uplink carrier aggregation is

Duty _NR，x ·(P _NR，x /P _CA )+Duty _NR，y ·(P _NR，y /P _CA )，

P _CA and reporting the maximum linear transmitting power corresponding to the power level of the carrier aggregation of the frequency band x and the frequency band y to the base station by the terminal.

18. The terminal of claim 13, wherein the uplink time Duty ratio of the normalized uplink carrier aggregation is Duty _NR，x ·(P _NR，x /P _CA )·SARratio _NR，x +Duty _NR，y ·(P _NR，y /P _CA )·SARratio _NR，y ，

19. The terminal of claim 18, wherein,

20. The terminal of any one of claims 13 to 15,

the predetermined difference is 3 dB.

21. A terminal, comprising:

a memory; and

a processor coupled to the memory, the processor configured to perform the method of any of claims 1-10 based on instructions stored in the memory.

22. A computer-readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the method of any one of claims 1 to 10.