Carrier control method, device, network equipment and storage medium

Abstract

The present disclosure proposes a carrier control method, device, network equipment and storage medium, which relate to the field of wireless communication technology. A carrier control method disclosed in the present disclosure includes: when a base station determines that a first uplink frequency band partially overlaps with a first downlink frequency band, the base station determines a second uplink frequency band and a second downlink frequency band according to the first uplink frequency band and the first downlink frequency band, and determines an uplink subcarrier parameter, wherein there is a frequency interval between the second downlink frequency band and the second uplink frequency band; the base station sends the uplink subcarrier parameter to a terminal so that the terminal adjusts the uplink transmission power. By using such a method, interference can be reduced and signal quality can be improved.

Description

Technical Field

[0001] The present disclosure relates to the field of wireless communication technology, and in particular to a carrier control method, apparatus, network equipment and storage medium. Background Art

[0002] The "super frequency fusion" technology mainly solves the problem of how to more efficiently integrate and utilize the spectrum of operators when there are multiple scattered small-bandwidth carriers at low or medium frequencies. It includes concepts and technical means such as saving public expenses, flexible scheduling and spectrum pooling.

[0003] The goal of frequency aggregation technology in the spectrum pooling concept of "super frequency fusion" is to solve the interference problem caused by 800MHz + 900MHz aggregation. There are two reasons for the interference. On the one hand, the frequency bands are closely spaced and the antenna isolation is insufficient; on the other hand, the downlink of 800MHz and the uplink of 900MHz partially overlap. Summary of the invention

[0004] One purpose of the present disclosure is to propose a solution to the signal interference problem in the case of carrier overlap, thereby improving the signal transmission quality.

[0005] According to one aspect of some embodiments of the present disclosure, a carrier control method is proposed, comprising: when a base station determines that a first uplink frequency band partially overlaps with a first downlink frequency band, the base station determines a second uplink frequency band and a second downlink frequency band based on the first uplink frequency band and the first downlink frequency band, and determines an uplink subcarrier parameter, wherein there is a frequency interval between the second downlink frequency band and the second uplink frequency band; the base station sends the uplink subcarrier parameter to a terminal so that the terminal adjusts the uplink transmit power.

[0006] In some embodiments, the method further includes: the base station obtains capability information of adjusting the transmit power level reported by the terminal; the base station determines a power adjustment scheme based on the capability information and sends it to the terminal, so that the terminal determines parameters for adjusting the uplink transmit power based on the power adjustment scheme.

[0007] In some embodiments, the power adjustment scheme includes at least one of adjusting the transmit power level or adopting an additional maximum transmit power back-off method.

[0008] In some embodiments, the base station determines the power adjustment scheme based on the capability information, including: when it is determined according to the capability information that the terminal has the ability to adjust the transmit power level, determining the power adjustment scheme to adjust the transmit power level; and when no capability information is received, or it is determined according to the capability information that the terminal does not have the ability to adjust the transmit power level, determining the power adjustment scheme to adopt an additional maximum transmit power back-off method.

[0009] In some embodiments, determining the second uplink frequency band and the second downlink frequency band based on the first uplink frequency band and the first downlink frequency band includes: determining an uplink upper limit and an uplink lower limit of the second uplink frequency band within the frequency band range of the first uplink frequency band, and determining a downlink upper limit and a downlink lower limit of the second downlink frequency band within the frequency band range of the first downlink frequency band.

[0010] In some embodiments, determining the second uplink frequency band and the second downlink frequency band based on the first uplink frequency band and the first downlink frequency band includes: determining a protection bandwidth frequency band within the frequency range of the first downlink frequency band and the first uplink frequency band; and determining the second uplink frequency band and the second downlink frequency band based on the protection bandwidth frequency band.

[0011] In some embodiments, the guard bandwidth frequency band is determined according to a preset spectrum rule.

[0012] In some embodiments, the terminal adjusts the uplink transmit power including: determining the corresponding transmit power difference according to the correspondence between the maximum transmit power corresponding to the power level of the terminal in a single carrier scenario and the transmit power difference, wherein the transmit power difference is the difference between the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the maximum transmit power corresponding to the target power level of the uplink carrier of at least one cell of the terminal in a carrier aggregation scenario; and adjusting the lower limit of the maximum transmit power according to the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the transmit power difference.

[0013] In some embodiments, determining the corresponding transmit power difference based on the correspondence between the maximum transmit power corresponding to the power level of the terminal in a single carrier scenario and the transmit power difference includes: when the frequency interval is less than or equal to the carrier bandwidth, or the frequency interval belongs to the first type, determining the corresponding transmit power difference based on the first correspondence between the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the transmit power difference; and when the frequency interval is greater than the carrier bandwidth, or the frequency interval belongs to the second type, determining the corresponding transmit power difference based on the second correspondence between the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the transmit power difference, wherein, when the maximum transmit powers corresponding to the power levels in the single carrier scenario are the same, the transmit power difference determined according to the first correspondence is greater than the transmit power difference determined according to the second correspondence.

[0014] In some embodiments, the terminal adjusts the uplink transmit power including: determining the A-MPR corresponding to each waveform according to the correspondence between the waveform and A-MPR; and executing the additional maximum transmit power backoff method according to the A-MPR.

[0015] In some embodiments, determining the additional maximum power backoff corresponding to each waveform based on the correspondence between the waveform and the additional maximum power backoff includes: when the frequency interval is less than or equal to the carrier bandwidth, or the frequency interval belongs to the first type, determining the A-MPR corresponding to each waveform based on the third correspondence between the waveform and the A-MPR; and when the frequency interval is greater than the carrier bandwidth, or the frequency interval belongs to the second type, determining the A-MPR corresponding to each waveform based on the fourth correspondence between the waveform and the A-MPR, wherein, when the waveforms are the same, the A-MPR determined according to the third correspondence is greater than the A-MPR determined according to the fourth correspondence.

[0016] In some embodiments, when it is determined that the power adjustment scheme is to adjust the transmit power level, the terminal adjusts the uplink transmit power including: determining the corresponding transmit power difference based on the correspondence between the maximum transmit power corresponding to the power level of the terminal in a single carrier scenario and the transmit power difference, wherein the transmit power difference is the difference between the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the maximum transmit power corresponding to the target power level of the uplink carrier of at least one cell of the terminal in the carrier aggregation scenario; and adjusting the lower limit of the maximum transmit power based on the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the transmit power difference.

[0017] In some embodiments, when the power adjustment scheme is determined to adopt an additional maximum transmit power backoff method, the terminal adjusts the uplink transmit power including: determining the A-MPR corresponding to each waveform according to the correspondence between the waveform and the A-MPR; and executing the additional maximum transmit power backoff method according to the A-MPR.

[0018] In some embodiments, the method also includes: when the base station selects a terminal using overlapping frequency bands in a carrier aggregation combination, determining whether each terminal in the candidate terminals includes a terminal with the ability to adjust the transmit power level; in a case where the candidate terminals include a terminal with the ability to adjust the transmit power level, selecting a terminal for carrier aggregation of the overlapping frequency bands from the terminals with the ability to adjust the transmit power level; in a case where the candidate terminals do not include a terminal with the ability to adjust the transmit power level, selecting a terminal for carrier aggregation of the overlapping frequency bands from the terminals without the ability to adjust the transmit power level.

[0019] According to one aspect of some embodiments of the present disclosure, a carrier control method is proposed, comprising: obtaining an uplink subcarrier parameter from a base station, wherein, when determining that a first uplink frequency band partially overlaps with a first downlink frequency band, the base station determines a second uplink frequency band and a second downlink frequency band based on the first uplink frequency band and the first downlink frequency band, and determines an uplink subcarrier parameter, and there is a frequency interval between the second downlink frequency band and the second uplink frequency band; and adjusting the uplink transmit power according to the uplink subcarrier parameter.

[0020] In some embodiments, the method further includes: when the terminal has the ability to adjust the transmit power level, sending capability information of adjusting the transmit power level to the base station so that the base station determines a power adjustment plan according to the capability information; and receiving a power adjustment plan from the base station so as to adjust the uplink transmit power according to the power adjustment plan.

[0021] In some embodiments, adjusting the uplink transmit power includes: determining the corresponding transmit power difference according to the correspondence between the maximum transmit power corresponding to the power level of the terminal in a single carrier scenario and the transmit power difference, wherein the transmit power difference is the difference between the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the maximum transmit power corresponding to the target power level of the uplink carrier of at least one cell of the terminal in a carrier aggregation scenario; and adjusting the lower limit of the maximum transmit power according to the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the transmit power difference.

[0022] In some embodiments, adjusting the uplink transmit power includes: determining the A-MPR corresponding to each waveform according to the corresponding relationship between the waveform and the A-MPR; and executing an additional maximum transmit power backoff method according to the A-MPR.

[0023] According to one aspect of some embodiments of the present disclosure, a carrier control device is proposed, including: a parameter determination unit, configured to determine a second uplink frequency band and a second downlink frequency band according to the first uplink frequency band and the first downlink frequency band when it is determined that the first uplink frequency band partially overlaps with the first downlink frequency band, and determine an uplink subcarrier parameter, wherein there is a frequency interval between the second downlink frequency band and the second uplink frequency band; and a first sending unit, configured to send the uplink subcarrier parameter to a terminal so that the terminal adjusts the uplink transmit power.

[0024] In some embodiments, the device also includes: a capability determination unit, configured to obtain capability information of adjusting the transmit power level reported by the terminal; and a second sending unit, configured to determine a power adjustment plan based on the capability information and send it to the terminal, so that the terminal determines the parameters for adjusting the uplink transmit power according to the power adjustment plan.

[0025] In some embodiments, the device also includes: a terminal selection unit, which is configured to determine whether each terminal in the candidate terminals includes a terminal with the ability to adjust the transmission power level when selecting a terminal for using the overlapping frequency band in the carrier aggregation combination; when the candidate terminals include terminals with the ability to adjust the transmission power level, select a terminal for carrier aggregation with terminals configured for overlapping frequency bands from terminals with the ability to adjust the transmission power level; when the candidate terminals do not include terminals with the ability to adjust the transmission power level, select a terminal for carrier aggregation with terminals configured for overlapping frequency bands from terminals that do not have the ability to adjust the transmission power level.

[0026] According to one aspect of some embodiments of the present disclosure, a carrier control device is proposed, including: a parameter acquisition unit, configured to acquire uplink subcarrier parameters from a base station, wherein the base station determines a second uplink frequency band and a second downlink frequency band based on the first uplink frequency band and the first downlink frequency band when determining that the first uplink frequency band partially overlaps with the first downlink frequency band, and determines the uplink subcarrier parameters, and there is a frequency interval between the second downlink frequency band and the second uplink frequency band; and an adjustment unit, configured to adjust the uplink transmission power according to the uplink subcarrier parameters.

[0027] In some embodiments, the device also includes: a capability reporting unit, configured to send capability information of adjusting the transmit power level to the base station when the terminal has the capability to adjust the transmit power level, so that the base station determines a power adjustment plan according to the capability information; and a plan acquisition unit, configured to receive a power adjustment plan from the base station, wherein the adjustment unit adjusts the uplink transmit power according to the power adjustment plan.

[0028] According to one aspect of some embodiments of the present disclosure, a network device is provided, comprising: a memory; and a processor coupled to the memory, wherein the processor is configured to execute any one of the above carrier control methods based on instructions stored in the memory.

[0029] According to one aspect of some embodiments of the present disclosure, a non-transitory computer-readable storage medium is provided, on which computer program instructions are stored, and when the instructions are executed by a processor, the steps of any one of the carrier control methods described above are implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0031] Figure 1 The present invention provides a flow chart of some embodiments of the carrier control method of the present invention.

[0032] Figure 2A It is a schematic diagram of some embodiments of frequency allocation in the carrier control method of the present disclosure.

[0033] Figure 2B Schematic diagrams of other embodiments of frequency allocation in the carrier control method of the present disclosure.

[0034] Figure 3A The present invention is a flowchart of some embodiments of a power adjustment scheme in the carrier control method of the present invention.

[0035] Figure 3B The present invention is a flowchart of some embodiments of another power adjustment scheme in the carrier control method of the present invention.

[0036] Figure 4 Flow charts of other embodiments of the carrier control method disclosed in the present invention.

[0037] Figure 5 Schematic diagram of some embodiments of the carrier control device on the base station side of the present disclosure.

[0038] Figure 6 Schematic diagrams of some embodiments of the carrier control device on the terminal side of the present disclosure.

[0039] Figure 7 Schematic diagram of some embodiments of the network device disclosed herein.

[0040] Figure 8 Schematic diagrams of other embodiments of the network device disclosed herein. DETAILED DESCRIPTION

[0041] The technical solution of the present disclosure is further described in detail below through the accompanying drawings and embodiments.

[0042] The NR standard in the related art does not support the aggregation of frequency overlapping bands, especially the aggregation of frequency overlapping bands in low frequency bands (below 1 GHz), which is mainly limited by interference problems.

[0043] The flowcharts of some embodiments of the carrier control method disclosed in the present invention are as follows: Figure 1 The method is executed by a base station or a device located at the base station side.

[0044] In step 120, the base station determines whether there are overlapping frequency bands in the carrier aggregation combination. If there is a partial overlap between the uplink frequency band and the downlink frequency band, the frequency range of the uplink frequency band and the downlink frequency band is redefined, and an uplink subcarrier parameter is generated and fed back to the terminal. In some embodiments, the uplink subcarrier parameter includes information about the second uplink frequency band of the configured terminal. In addition, when the base station uses the frequency band for downlink transmission, it changes from using the first downlink frequency band to using the second downlink frequency band.

[0045] In some embodiments, the uplink frequency band in the carrier aggregation combination is called the first uplink frequency band, and the downlink frequency band is called the first downlink frequency band. When it is determined that the first uplink frequency band partially overlaps with the first downlink frequency band, the second uplink frequency band and the second downlink frequency band are determined according to the frequency band range of the first uplink frequency band and the first downlink frequency band, and there is a frequency interval between the second downlink frequency band and the second uplink frequency band, so that the re-determined uplink and downlink frequency bands do not overlap. Further, the base station determines the uplink subcarrier parameter.

[0046] In some embodiments, the base station may determine the second uplink frequency band and the second downlink frequency band by directly determining the frequency range of the frequency band. In some embodiments, such a method may be referred to as an absolute frequency limit method. In some embodiments, the upper and lower limits of the second uplink frequency band are determined within the range of the first uplink frequency band, and the upper and lower limits of the second downlink frequency band are determined within the range of the first downlink frequency band. In some embodiments, Figure 2A As shown in , the frequency band 211 and the frequency band 212 partially overlap, and one of the frequency bands 211 and 212 is an uplink frequency band and the other is a downlink frequency band. 1 ,Y 1 ] to determine the first frequency band [x 1 ,y 1 ], that is, X 1 ≤x 1 <y 1 ≤Y 1 ; In the frequency band 212 range [X 2 ,Y 2 ] to determine the second frequency band [x 2 ,y 2 ], that is, X 2 ≤x 2 <y 2 ≤Y 2 , where y 1 <x 2 , thereby ensuring that there is frequency spacing between the uplink and downlink frequency bands.

[0047] In some embodiments, the base station may also determine the second uplink and downlink frequency bands by defining and moving a protection bandwidth between the second uplink and downlink frequency bands, wherein the protection bandwidth is the frequency interval between the second uplink and downlink frequency bands. In some embodiments, such a method may be referred to as relative frequency restriction. The frequency band range of the protection bandwidth is within the total frequency range of the first uplink and downlink bandwidths. In addition, at least a portion of the protection bandwidth is located within the overlapping range of the first uplink and downlink frequency bands, thereby preventing a portion of the bandwidth in the second uplink and downlink frequency bands from being too narrow and affecting data transmission. Further, based on the determined frequency range of the protection bandwidth, the second uplink frequency band and the second downlink frequency band are determined, so that the frequency band located in the first uplink frequency band of the two frequency bands separated by the protection bandwidth is the second uplink frequency band, and the frequency band located in the first downlink frequency band is the first downlink frequency band. In some embodiments, the upper limit of the frequency band with a lower frequency may be set as the lower limit of the protection bandwidth, and the lower limit is the lower limit of the total frequency range of the first uplink and downlink bandwidths; the lower limit of the frequency band with a higher frequency may be set as the upper limit of the protection bandwidth, and the upper limit is the upper limit of the total frequency range of the first uplink and downlink bandwidths. In some embodiments, as Figure 2B As shown, the protection bandwidth is determined within the range of frequency band 221∪frequency band 222, and there are multiple ways to set the protection bandwidth, such as the first protection bandwidth 231 and the second protection bandwidth 232 shown in the figure. In some embodiments, the protection bandwidth frequency band can be determined according to a preset spectrum rule, and the operator determines the frequency band range of the protection bandwidth based on the spectrum rule determined by itself, and the two frequency bands separated by the protection bandwidth are the second uplink and downlink frequency bands. In some embodiments, based on the operator's own spectrum rules, the width of the protection bandwidth can refer to the width of the carrier bandwidth, so as to minimize the uplink and downlink interference while avoiding the uplink and downlink frequency bands being too narrow to affect data transmission.

[0048] In step 140, the base station sends the uplink subcarrier parameter to the terminal so that the terminal adjusts the uplink transmit power. In some embodiments, the terminal performs power adjustment by adjusting the transmit power level or adopting at least one of an additional maximum transmit power fallback method. In some embodiments, the two schemes of adjusting the transmit power level or adopting an additional maximum transmit power fallback method can be combined, and one of the schemes that can be used by the terminal is selected, thereby improving the universality of power control.

[0049] Through this method, the base station can adjust the uplink and downlink frequency bands for overlapping carrier frequency combinations to avoid interference caused by overlap; in addition, by allowing the terminal to adjust the uplink transmission power, interference caused by close frequency bands can be avoided, further reducing interference and improving signal quality.

[0050] In some embodiments, the terminal can send capability information of adjusting the transmit power level to the base station if it has the capability of adjusting the transmit power level. In some embodiments, the capability information of adjusting the transmit power level can be indicated by a 1-bit Decrease-PowerClass information element. In some embodiments, the capability information can be sent at any time before the terminal performs power adjustment according to the uplink subcarrier parameters, such as when the terminal enters the network or switches the base station. The base station determines the power adjustment scheme to be adopted by the terminal based on the capability information of adjusting the transmit power level. In some embodiments, the power adjustment scheme of the terminal includes at least one of adjusting the transmit power level or adopting an additional maximum transmit power fallback method, and the base station can select one of the methods and inform the terminal. In some embodiments, the power adjustment scheme can be indicated by RRC (Radio Resource Control) signaling as adopting an additional maximum transmit power fallback method.

[0051] In some embodiments, if the base station receives the capability information of adjusting the transmit power level from the terminal, it determines that the terminal has the capability information of adjusting the transmit power level, and determines that the power adjustment method to be used is to adjust the transmit power level; if the base station does not receive the capability information of adjusting the transmit power level from the terminal, it determines that the terminal does not have the capability information of adjusting the transmit power level, and determines that the power adjustment method to be used for the terminal is to use the rule of additional maximum transmit power fallback. Through such a method, the base station can determine the terminal that has the capability information of adjusting the transmit power level, and thus preferentially use the capability information of adjusting the transmit power level to perform power control.

[0052] In other embodiments, if the capability of adjusting the transmit power level in the capability information received from the terminal by the base station is a preset value, it is determined that the terminal has the capability information of adjusting the transmit power level, and the power adjustment method used is determined to be adjusting the transmit power level; if the capability of adjusting the transmit power level in the capability information received from the terminal by the base station is a default value, it is determined that the terminal does not have the capability information of adjusting the transmit power level, and the power adjustment method used is determined to be the rule of using additional maximum transmit power fallback. Through such a method, the base station can clearly identify the terminals that have and do not have the capability information of adjusting the transmit power level, so as to select the power control method for the terminal in a targeted manner and improve the accuracy of the method selection.

[0053] In some embodiments, the base station may give priority to terminals that have the ability to adjust the transmit power level to configure carrier aggregation in overlapping frequency bands, thereby solving interference problems by adjusting the transmit power level as much as possible and reducing the use of additional maximum transmit power backoff mechanisms.

[0054] In some embodiments, when selecting a terminal to use an overlapping frequency band in a carrier aggregation combination, the base station determines whether each terminal in the candidate terminals includes a terminal with the ability to adjust the transmit power level; if the candidate terminals include a terminal with the ability to adjust the transmit power level, the terminal is selected from the terminals with the ability to adjust the transmit power level to configure the carrier aggregation of the overlapping frequency band; if the candidate terminals do not include a terminal with the ability to adjust the transmit power level but the terminal still needs to be selected to use the overlapping frequency band in the carrier aggregation combination, the terminal is selected from the terminals that do not have the ability to adjust the transmit power level to configure the carrier aggregation of the overlapping frequency band. Through such a method, the terminal that needs to adjust the power can have the ability to adjust the transmit power level as much as possible, so as to use the method of adjusting the transmit power level with a higher priority as much as possible, and reduce the use of the additional maximum transmit power backoff mechanism with a lower priority to solve the interference problem.

[0055] The flowcharts of some embodiments of a power adjustment scheme in the carrier control method disclosed in the present invention are as follows: Figure 3A In some embodiments, when the base station determines that the terminal has the ability to adjust the transmission power level, the base station uses this method to adjust the power.

[0056] In step 351, the maximum transmit power p corresponding to the power level of the terminal in a single carrier scenario is PowerClass.c Difference between the transmission power and the Powerclass,c The corresponding relationship is used to determine the corresponding transmit power difference △p Powerclass,c The transmit power difference is the maximum transmit power p corresponding to the power level of the terminal in a single carrier scenario. PowerClass.c , the maximum transmit power p corresponding to the target power level of the uplink carrier of at least one cell in the carrier aggregation scenario of the terminal powerclass,D,c In some embodiments, 0dB≤Δp Powerclass,c ≤6dB.

[0057] In some embodiments, the relative size of the frequency interval and the carrier bandwidth can be used as a classification standard. When the frequency interval is less than or equal to the carrier bandwidth, the corresponding transmit power difference is determined according to the first correspondence between the maximum transmit power corresponding to the power level of the terminal in a single carrier scenario and the transmit power difference; when the frequency interval is greater than the carrier bandwidth, the corresponding transmit power difference is determined according to the second correspondence between the maximum transmit power corresponding to the power level of the terminal in a single carrier scenario and the transmit power difference. Considering that interference is more likely to occur when the frequency interval is less than or equal to the carrier bandwidth, the power reduction should be greater at this time. Therefore, when the maximum transmit power corresponding to the power level in a single carrier scenario is the same, the transmit power difference determined according to the first correspondence is greater than the transmit power difference determined according to the second correspondence, thereby ensuring the effect of interference reduction.

[0058] In some embodiments, the operator may determine to adopt the above-mentioned first correspondence or the second correspondence according to the preset width of its own protection bandwidth. In some embodiments, the correspondence to be adopted may be determined according to the type of frequency interval, and the widths of different types of protection bandwidths are different. For example, if the frequency interval of the first type is less than or equal to the carrier bandwidth, and the frequency interval of the second type is greater than the carrier bandwidth, then when it is determined that the frequency interval conforms to the first type, the first correspondence is adopted, and when it is determined that the frequency interval conforms to the second type, the second correspondence is adopted.

[0059] In some embodiments, the first corresponding relationship may be: when p PowerClass.c =23dBm, Δp Powerclass,C =3dB; when p PowerClass.c =26dBm, Δp Powerclass,C =6dB.

[0060] In some embodiments, the second corresponding relationship may be: when p PowerClass.c =23dBm, Δp Powerclass,C =0dB; when p PowerClass.c =26dBm, Δp Powerclass,C =3dB; in other cases, Δp Powerclass,C =0dB.

[0061] In step 361, the lower limit of the maximum transmit power is adjusted according to the maximum transmit power and the transmit power difference corresponding to the power level of the terminal in the single carrier scenario.

[0062] In some embodiments, the upper limit of the maximum transmit power of the terminal is P CMAX_H , the lower limit of the terminal's maximum transmit power P CMAX_L Defined as:

[0063]

[0064] Among them, the upper limit of the terminal's maximum transmit power is P CMAX_H , can be determined according to the method in the relevant technology; in the calculation of the lower limit of the maximum transmission power,

[0065] p EMAX,C The maximum transmit power of the terminal configured for the base station in cell c, where c is a positive integer,

[0066] Dt C，c The compensation parameter for the terminal to relax the transmission power at the edge of the frequency band, mpr c is the maximum transmit power fallback value of the terminal,

[0067] Δmpr c is the maximum transmit power back-off difference of the terminal,

[0068] a-mpr c is the additional maximum transmit power fallback value of the terminal,

[0069] Dt IB，c is the insertion loss compensation parameter of the terminal’s transmit power,

[0070] Dt RxSRS，c It is the compensation parameter used by the terminal in the predetermined scenario when transmitting the uplink sounding reference signal.

[0071] P EMAX,CA Configure the maximum transmit power limit of the carrier aggregation of the terminal for the base station,

[0072] p PowerClass,CA is the maximum transmit power corresponding to the transmit power level of the terminal carrier aggregation,

[0073] △p PowerClass，CA is the maximum transmit power difference corresponding to the transmit power level of the terminal carrier aggregation,

[0074] p Powerclass，c is the maximum transmit power corresponding to the transmit power level of the terminal in cell c,

[0075] By introducing △p Powerclass，c , to achieve intervention in the transmission power.

[0076] Through the method in the embodiment shown above, when the terminal has the ability to adjust the transmit power level, the transmit power difference can be determined, thereby adjusting the lower limit of the terminal's maximum transmit power, so that the terminal's ability to adjust the transmit power level can be used to reduce uplink and downlink interference and improve signal transmission quality.

[0077] The flowcharts of some embodiments of another power adjustment scheme in the carrier control method disclosed in the present invention are as follows: Figure 3B shown.

[0078] In step 352, the A-MPR of different RBs (Resource Blocks) of the uplink carrier corresponding to each waveform is determined according to the corresponding relationship between the waveform and the A-MPR. In some embodiments, the corresponding relationship can be determined according to the available frequency resources configured by the base station, and the interference requirements of the downlink carriers in the overlapping frequency bands are further determined with reference to the capabilities of the terminal filter.

[0079] In some embodiments, the relative size of the frequency interval and the carrier bandwidth can be used as a classification standard to select different corresponding relationships. In some embodiments, the waveform includes DFT-s-OFDM (Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplexing) and CP-OFDM (Cyclic Prefix Orthogonal Frequency Division Multiplexing), and the corresponding relationship between the waveform and A-MPR can be shown in Table 1:

[0080] Table 1 Correspondence between waveform and A-MPR

[0081]

[0082] Among them, v1~v4 are A-MPR values. When the frequency interval is less than or equal to the carrier bandwidth, the A-MPR corresponding to each waveform is determined according to the third correspondence between the waveform and the A-MPR (i.e., selecting configuration mode 1 in the above table); when the frequency interval is greater than the carrier bandwidth, the A-MPR corresponding to each waveform is determined according to the fourth correspondence between the waveform and the A-MPR (i.e., selecting configuration mode 2 in the above table).

[0083] In some embodiments, according to the correspondence between the waveform and the additional maximum power backoff, determining the additional maximum power backoff corresponding to each waveform includes: when the frequency interval is less than or equal to the carrier bandwidth, or the frequency interval belongs to the first type, determining the A-MPR corresponding to each waveform according to the third correspondence between the waveform and the A-MPR; and when the frequency interval is greater than the carrier bandwidth, or the frequency interval belongs to the second type, determining the A-MPR corresponding to each waveform according to the fourth correspondence between the waveform and the A-MPR. In some embodiments, considering that interference is more likely to occur when the frequency interval is less than or equal to the carrier bandwidth, when the waveform is the same, the A-MPR determined according to the third correspondence is greater than the A-MPR determined according to the fourth correspondence, thereby ensuring the effect of interference reduction.

[0084] In some embodiments, the operator may determine to adopt the third correspondence or the fourth correspondence according to the preset width of its own protection bandwidth. In some embodiments, the correspondence to be adopted may be determined according to the type of frequency interval, and the widths of different types of protection bandwidths are different. For example, if the frequency interval of the first type is less than or equal to the carrier bandwidth, and the frequency interval of the second type is greater than the carrier bandwidth, then when it is determined that the frequency interval conforms to the first type, the third correspondence is adopted, and when it is determined that the frequency interval conforms to the second type, the fourth correspondence is adopted.

[0085] In some embodiments, the value range of the above-mentioned v1 and v3 is [0-15dB], and the value range of the above-mentioned v2 and v4 is [0-10dB].

[0086] In step 362, an additional maximum transmit power backoff mode is performed according to the A-MPR, and the additional maximum transmit power backoff mechanism is used to reduce interference.

[0087] Through the method in the above embodiment, the additional maximum transmit power back-off value can be determined, and then the additional maximum transmit power back-off mechanism of the terminal is used to reduce uplink and downlink interference and improve signal transmission quality.

[0088] There are several solutions to the signal interference problem in related technologies. For example, from the perspective of antennas, the number of antennas can be increased, and different frequency bands can be transmitted and received through different antennas to achieve a certain degree of spatial isolation. From the perspective of frequency division, the aggregated frequencies can be redefined into new frequency bands that do not overlap or have a certain interval, and customized filters that match the new frequency bands can be used. From the perspective of terminal transmission power, additional maximum transmission power backoff can be used, that is, the terminal transmission power can be reduced.

[0089] However, due to the large size of low-frequency antennas, it is very difficult to add low-frequency antennas on the terminal side; the method of redividing frequencies to define new frequency bands and customized filters is limited by the development of the industrial chain, affecting the deployment process of operators' network solutions; the method of controlling terminal power can meet the adjacent frequency radiation requirements for non-overlapping frequency bands, but for overlapping frequency bands, considering the blocking effect on the receiver, the power that needs to be backed off is very large, which has no practical deployment value.

[0090] In the scheme disclosed in the present invention, the base station first determines the available frequency resources of the overlapping frequency band, and then the terminal adopts the power control scheme to improve the reliability and flexibility of reducing the interference of the overlapping frequency band in the carrier aggregation, which is conducive to production use. In addition, the terminal reports the ability to reduce the maximum transmission power level in the power control scheme to the base station, and the base station preferentially selects the terminal with this ability to configure the carrier aggregation of the overlapping frequency band, thereby improving the success rate of power control and the success rate of reducing interference.

[0091] Flow charts of other embodiments of the carrier control method disclosed in the present invention are as follows: Figure 4 The method is executed by a terminal or a device located at the terminal side.

[0092] In step 420, an uplink subcarrier parameter is obtained from the base station. In some embodiments, the uplink subcarrier parameter includes information about the second uplink frequency band of the configured terminal. When the base station determines that the first uplink frequency band partially overlaps with the first downlink frequency band, the base station determines the second uplink frequency band and the second downlink frequency band according to the first uplink frequency band and the first downlink frequency band, and determines the uplink subcarrier parameter, and there is a frequency interval between the second downlink frequency band and the second uplink frequency band.

[0093] In some embodiments, the base station may adopt the above Figure 1 The method in the illustrated embodiment determines the second downlink frequency band and the second uplink frequency band, and provides uplink subcarrier parameters to the terminal.

[0094] In step 440, the terminal adjusts its own uplink transmit power according to the uplink subcarrier parameter.

[0095] Through this method, the base station can adjust the uplink and downlink frequency bands for overlapping carrier frequency combinations to avoid interference caused by overlap; in addition, the terminal can adjust the uplink transmission power to avoid interference caused by close frequency bands, further reduce interference and improve signal quality.

[0096] In some embodiments, if the terminal has the ability to adjust the transmit power level, the terminal can send capability information of adjusting the transmit power level to the base station, so that the base station determines that the terminal has the ability to adjust the transmit power level. In other embodiments, the terminal can send capability information of adjusting the transmit power level to the base station. If the terminal has the ability to adjust the transmit power level, the capability information carries a preset value; otherwise, the capability of adjusting the transmit power level in the capability information is a default value, so that the base station determines whether the terminal has the ability to adjust the transmit power level and screens out terminals that are confirmed not to have this capability. Further, when the terminal receives the power adjustment plan from the base station, it adjusts the uplink transmit power according to the power adjustment plan. In some embodiments, the power adjustment plan can be obtained through RRC signaling. Through this method, the terminal can report its own capabilities to the base station, so that the base station can preferentially use the capability information of adjusting the transmit power level to perform power control.

[0097] In some embodiments, adjusting the uplink transmit power includes adjusting the transmit power level or using at least one of an additional maximum transmit power fallback method. In some embodiments, the two schemes of adjusting the transmit power level or using an additional maximum transmit power fallback method can be combined, and one of the schemes that can be used by the terminal is selected, thereby improving the universality of power control.

[0098] In some embodiments, the transmission power level can be adjusted as follows: Figure 3A As shown in the corresponding embodiment; in some embodiments, the additional maximum transmit power backoff method can be used as follows Figure 3B As shown in the corresponding embodiment. Through such a method, the ability of the terminal to adjust the transmit power level or the additional maximum transmit power fallback mechanism is utilized to reduce uplink and downlink interference and improve signal transmission quality.

[0099] The carrier control method of the present disclosure is explained below with specific examples. The selection of data and processing methods in the examples is only an example, does not cover all carrier control situations, and does not constitute an improper limitation on the present disclosure.

[0100] [Example 1]

[0101] The frequency definition of the carrier aggregation combination Band n5 and Band n8 is shown in Table 2 below. It can be seen that the downlink of Band n5 and the uplink of Band n8 have some frequency overlap (14 MHz).

[0102] Table 2 Frequency range of Band n5 and Band n8

[0103] NR operating frequency band Uplink operating frequency band Downlink operating frequency band n5 824MHz–849MHz 869MHz–894MHz n8 880MHz–915MHz 925MHz–960MHz

[0104] The absolute frequency limit for terminal Band n5+Band n8 carrier aggregation is defined in protocol 38.101-1, and is specifically defined as follows:

[0105] Table 3 Frequency Limits

[0106]

[0107] The base station configures the uplink subcarrier spacing of Band n8 to 30kHz and the carrier bandwidth to 24RB through SIB1, corresponding to a carrier bandwidth of 10MHz. According to the restrictions in Table 2, the frequency spacing is 14MHz, which is greater than 10MHz, so the second corresponding relationship is adopted.

[0108] In some embodiments, the terminal reports the ability to support reducing the maximum transmit power class, such as indicating this information via a Decrease-PowerClass information element.

[0109] In some embodiments, the terminal determines the maximum transmit power level difference based on parameters such as frequency interval and channel bandwidth configured by the base station.

[0110] According to the operator's spectrum planning, the base station determines that the interval between the downlink of Band n5 and the uplink of Band n8 is 24 MHz, which is larger than the uplink channel bandwidth of Band n8 configured for the base station by 10 MHz.

[0111] Further considering the original power level ppowerclass,c=23dBm reported by the terminal,

[0112] Based on the second corresponding relationship above, the lower limit of the maximum transmit power of the terminal is P CMAX_L The maximum transmit power difference Δp Powerclass,c =0dB, that is, the terminal can meet the uplink and downlink carrier interference requirements under the frequency limit without reducing the power level.

[0113] Example 2

[0114] The frequency definition of the carrier aggregation combination Band n5 and Band n8 is also as shown in Table 2 above.

[0115] The relative frequency limit of terminal Band n5+Band n8 carrier aggregation is defined in protocol 38.101-1, and is specifically defined as follows:

[0116] Table 4 Frequency Limits

[0117]

[0118] The base station configures the uplink subcarrier spacing of Band n8 to 30kHz and the carrier bandwidth to 24RB through SIB1, corresponding to a 10MHz bandwidth. Taking the use of protection bandwidth type 2 as an example, the protection bandwidth is smaller than the carrier bandwidth, that is, the frequency spacing is smaller than the carrier bandwidth, and the third corresponding relationship is adopted.

[0119] The terminal does not report the ability to support reducing the maximum transmit power class, that is, the Decrease-PowerClass information element is in the default state, so the terminal adopts the additional maximum transmit power fallback according to the relative frequency limit of Band n5 and Band n8 constrained by the base station. The base station configures the terminal to adopt the additional maximum transmit power fallback mechanism through RRC signaling, and defines the terminal's additional maximum transmit power fallback requirements as shown in Table 4.

[0120] Table 5 Correspondence between waveform and A-MPR

[0121] Waveform RB configuration mode 1 RB configuration method 2 DFT-s-OFDM ≤6dB ≤3dB CP-OFDM ≤8dB ≤4dB

[0122] Therefore, the terminal adopts the additional maximum power backoff of RB configuration mode 1 to meet the uplink and downlink carrier interference requirements under the frequency limit.

[0123] Schematic diagrams of some embodiments of the carrier control device 50 at the base station side of the present disclosure are as follows: Figure 5 shown.

[0124] The parameter determination unit 51 can determine whether there are overlapping frequency bands in the combination of carrier aggregation. If there is a partial overlap between the uplink frequency band and the downlink frequency band, the frequency range of the uplink frequency band and the downlink frequency band is redefined, and an uplink subcarrier parameter is generated and fed back to the terminal. In some embodiments, the uplink subcarrier parameter includes information about the second uplink frequency band of the configured terminal.

[0125] The first sending unit 52 can send the uplink subcarrier parameter to the terminal so that the terminal can adjust the uplink transmit power. In some embodiments, the power adjustment scheme of the terminal includes at least one of adjusting the transmit power level or adopting an additional maximum transmit power backoff mode.

[0126] Such a carrier control device can adjust the uplink and downlink frequency bands for overlapping carrier frequency combinations to avoid interference caused by overlap; in addition, by allowing the terminal to adjust the uplink transmission power, interference caused by close frequency bands can be avoided, further reducing interference and improving signal quality.

[0127] In some embodiments, Figure 5 As shown, the carrier control device 50 further includes a capability determination unit 53 and a second sending unit 54 .

[0128] The capability determination unit 53 can obtain the capability information of adjusting the transmit power level reported by the terminal. The second sending unit 54 can determine a power adjustment scheme according to the capability information and send it to the terminal so that the terminal can determine the parameters for adjusting the uplink transmit power according to the power adjustment scheme.

[0129] In some embodiments, if the capability determination unit 53 determines that the terminal has the capability information to adjust the transmit power level, the power adjustment method selected to be adopted is to adjust the transmit power level; if the capability determination unit 53 determines that the terminal does not have the capability information to adjust the transmit power level, the power adjustment method selected to be adopted is to adopt the rule of additional maximum transmit power fallback.

[0130] Such a carrier control device can determine a terminal having capability information for adjusting the transmission power level, and thus preferentially use the capability information for adjusting the transmission power level to perform power control.

[0131] In some embodiments, Figure 5 As shown, the carrier control device 50 also includes a terminal selection unit 55, which can give priority to terminals with the ability to adjust the transmission power level to configure carrier aggregation in overlapping frequency bands when selecting terminals for carrier aggregation, so as to solve the interference problem by adjusting the transmission power level as much as possible and reducing the use of additional maximum transmission power back-off mechanism.

[0132] In some embodiments, when the base station selects a terminal that uses an overlapping frequency band in a carrier aggregation combination, the terminal selection unit 55 determines whether each terminal in the candidate terminals includes a terminal that has the ability to adjust the transmit power level; when the candidate terminals include a terminal that has the ability to adjust the transmit power level, a terminal that configures the carrier aggregation of the overlapping frequency band is selected from the terminals that have the ability to adjust the transmit power level; when the candidate terminals do not include a terminal that has the ability to adjust the transmit power level but still need to select a terminal to use the overlapping frequency band in the carrier aggregation combination, a terminal that configures the carrier aggregation of the overlapping frequency band is selected from the terminals that do not have the ability to adjust the transmit power level. Such a device can enable the terminal that needs to adjust the power to have the ability to adjust the transmit power level as much as possible, so as to use a higher priority method of adjusting the transmit power level as much as possible, and reduce the use of a lower priority additional maximum transmit power backoff mechanism to solve the interference problem.

[0133] Schematic diagrams of some embodiments of the carrier control device 60 on the terminal side of the present disclosure are as follows: Figure 6 shown.

[0134] The parameter acquisition unit 61 can acquire the uplink subcarrier parameter from the base station. In some embodiments, the uplink subcarrier parameter includes information about the second uplink frequency band of the configured terminal. When the base station determines that the first uplink frequency band partially overlaps with the first downlink frequency band, the base station determines the second uplink frequency band and the second downlink frequency band according to the first uplink frequency band and the first downlink frequency band, and determines the uplink subcarrier parameter, and there is a frequency interval between the second downlink frequency band and the second uplink frequency band. In some embodiments, the base station can adopt the method described above. Figure 1 The method in the illustrated embodiment determines the second downlink frequency band and the second uplink frequency band, and provides uplink subcarrier parameters to the terminal.

[0135] The adjustment unit 62 can adjust the uplink transmit power of the terminal according to the uplink subcarrier parameter.

[0136] Such a carrier control device can adjust the uplink and downlink frequency bands for overlapping carrier frequency combinations at the base station to avoid interference caused by overlap, and adjust the terminal uplink transmission power to avoid interference caused by close frequency bands, further reduce interference and improve signal quality.

[0137] In some embodiments, Figure 6 As shown, the carrier control device 60 further includes a capability reporting unit 63 and a solution acquiring unit 64 .

[0138] The capability reporting unit 63 can send the capability information of adjusting the transmit power level to the base station when the terminal has the capability of adjusting the transmit power level, so that the base station determines that the terminal has the capability of adjusting the transmit power level. In other embodiments, the capability reporting unit 63 can send the capability information of adjusting the transmit power level to the base station, and if the terminal has the capability of adjusting the transmit power level, the capability information carries a preset value; otherwise, the capability of adjusting the transmit power level in the capability information is a default value, so that the base station determines whether the terminal has the capability of adjusting the transmit power level and screens out terminals that are confirmed not to have the capability.

[0139] The scheme acquisition unit 64 receives the power adjustment scheme from the base station, and then the adjustment unit 62 adjusts the uplink transmission power according to the power adjustment scheme.

[0140] Such a device can report the capabilities of the terminal to the base station, so that the base station can preferentially use the capability information to adjust the transmission power level for power control.

[0141] A structural diagram of an embodiment of the network device disclosed in the present invention is shown in FIG. Figure 7 As shown, the network device can be a base station or a terminal, or a carrier control device located at the base station or terminal side. The network device includes a memory 701 and a processor 702. Among them: the memory 701 can be a disk, a flash memory or any other non-volatile storage medium. The memory is used to store the instructions in the corresponding embodiment of the carrier control method above. The processor 702 is coupled to the memory 701 and can be implemented as one or more integrated circuits, such as a microprocessor or a microcontroller. The processor 702 is used to execute the instructions stored in the memory, which can reduce interference and improve signal quality.

[0142] In one embodiment, it is also possible to Figure 8 As shown, the network device 800 includes a memory 801 and a processor 802. The processor 802 is coupled to the memory 801 via a BUS bus 803. The network device 800 can also be connected to an external storage device 805 via a storage interface 804 to call external data, and can also be connected to a network or another computer system (not shown) via a network interface 806. No further detailed description will be given here.

[0143] In this embodiment, by storing data instructions in a memory and processing the instructions through a processor, interference can be reduced and signal quality can be improved.

[0144] In another embodiment, a computer-readable storage medium stores thereon computer program instructions, which, when executed by a processor, implement the steps of the method in the corresponding embodiment of the carrier control method. It should be understood by those skilled in the art that the embodiments of the present disclosure may be provided as methods, devices, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure may take the form of a computer program product implemented on one or more computer-usable non-transient storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0145] The present disclosure is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present disclosure. It should be understood that each process and / or block in the flowchart and / or block diagram and the combination of processes and / or blocks in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0146] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0147] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0148] So far, the present disclosure has been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0149] The method and apparatus of the present disclosure may be implemented in many ways. For example, the method and apparatus of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above order of steps for the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above, unless otherwise specifically stated. In addition, in some embodiments, the present disclosure may also be implemented as a program recorded in a recording medium, which includes machine-readable instructions for implementing the method according to the present disclosure. Therefore, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.

[0150] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present disclosure, which should be included in the scope of the technical solution for protection of the present disclosure.

Claims

1. A carrier control method, comprising: The base station determines, when determining that the first uplink frequency band partially overlaps with the first downlink frequency band, a second uplink frequency band and a second downlink frequency band according to the first uplink frequency band and the first downlink frequency band, and determines an uplink subcarrier parameter, wherein there is a frequency interval between the second downlink frequency band and the second uplink frequency band; and The base station sends the uplink subcarrier parameter to the terminal so that the terminal adjusts the uplink transmit power, including: determining the corresponding transmit power difference according to the correspondence between the maximum transmit power corresponding to the power level of the terminal in a single carrier scenario and the transmit power difference, wherein the transmit power difference is the difference between the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the maximum transmit power corresponding to the target power level of the uplink carrier of at least one cell of the terminal in the carrier aggregation scenario; and adjusting the lower limit of the maximum transmit power according to the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the transmit power difference.

2. The method according to claim 1, further comprising: The base station obtains the capability information of adjusting the transmission power level reported by the terminal; and The base station determines a power adjustment scheme according to the capability information, and sends the power adjustment scheme to the terminal, so that the terminal determines parameters for adjusting uplink transmission power according to the power adjustment scheme.

3. The method according to claim 2, wherein: The power adjustment scheme includes at least one of adjusting the transmit power level or adopting an additional maximum transmit power back-off method.

4. The method according to claim 3, wherein: The base station determining the power adjustment scheme according to the capability information includes: In a case where it is determined according to the capability information that the terminal has the capability to adjust the transmit power level, determining that the power adjustment scheme is to adjust the transmit power level; and When the capability information is not received or it is determined according to the capability information that the terminal does not have the capability to adjust the transmit power level, the power adjustment scheme is determined to adopt an additional maximum transmit power fallback mode.

5. The method according to claim 1, wherein: The determining the second uplink frequency band and the second downlink frequency band according to the first uplink frequency band and the first downlink frequency band comprises: An uplink upper limit and an uplink lower limit of the second uplink frequency band are determined within a frequency band range of the first uplink frequency band, and a downlink upper limit and a downlink lower limit of the second downlink frequency band are determined within a frequency band range of the first downlink frequency band.

6. The method according to claim 1, wherein: The determining the second uplink frequency band and the second downlink frequency band according to the first uplink frequency band and the first downlink frequency band comprises: Determine a guard bandwidth frequency band within the frequency range of the first downlink frequency band and the first uplink frequency band; and The guard bandwidth frequency band is used as a frequency interval between a second uplink frequency band and the second downlink frequency band, and the second uplink frequency band and the second downlink frequency band are determined according to the guard bandwidth frequency band.

7. The method according to claim 6, wherein: The protection bandwidth frequency band is determined according to a preset spectrum rule.

8. The method according to claim 1, wherein: The determining the corresponding transmit power difference according to the correspondence between the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the transmit power difference includes: When the frequency interval is less than or equal to the carrier bandwidth, or the frequency interval belongs to the first type, determining the corresponding transmit power difference according to a first correspondence between the maximum transmit power corresponding to the power level of the terminal in a single carrier scenario and the transmit power difference; and When the frequency interval is greater than the carrier bandwidth or the frequency interval belongs to the second type, determining the corresponding transmit power difference according to a second correspondence between the maximum transmit power corresponding to the power level of the terminal in a single carrier scenario and the transmit power difference, Among them, the frequency interval of the first type is less than or equal to the carrier bandwidth, the frequency interval of the second type is greater than the carrier bandwidth, the first correspondence relationship and the second correspondence relationship are the correspondence between the maximum transmit power corresponding to the power level of the terminal in a single carrier scenario and the transmit power difference. When the maximum transmit power corresponding to the power level in the single carrier scenario is the same, the transmit power difference determined according to the first correspondence relationship is greater than the transmit power difference determined according to the second correspondence relationship.

9. The method according to claim 1, wherein: The terminal adjusts the uplink transmit power by: Determining the A-MPR corresponding to each waveform according to the corresponding relationship between the waveform and the additional maximum transmit power back-off A-MPR, wherein the waveform includes discrete Fourier transform spread orthogonal frequency division multiplexing DFT-s-OFDM and cyclic prefix orthogonal frequency division multiplexing CP-OFDM; and The additional maximum transmit power backoff mode is performed according to the A-MPR.

10. The method according to claim 9, wherein: The determining, according to the correspondence between the waveform and the additional maximum power backoff, the additional maximum power backoff corresponding to each waveform comprises: When the frequency interval is less than or equal to the carrier bandwidth, or the frequency interval belongs to the first type, determining the A-MPR corresponding to each waveform according to a third corresponding relationship between the waveform and the A-MPR; and In a case where the frequency interval is greater than the carrier bandwidth, or the frequency interval belongs to the second type, determining the A-MPR corresponding to each waveform according to a fourth corresponding relationship between the waveform and the A-MPR, Among them, the frequency interval of the first type is less than or equal to the carrier bandwidth, the frequency interval of the second type is greater than the carrier bandwidth, the third correspondence and the fourth correspondence are the correspondences between the waveform and the A-MPR, and when the waveforms are the same, the A-MPR determined according to the third correspondence is greater than the A-MPR determined according to the fourth correspondence.

11. The method according to claim 3 or 4, wherein: When it is determined that the power adjustment scheme is to adjust the transmit power level, the terminal adjusting the uplink transmit power includes: Determine the corresponding transmit power difference according to the correspondence between the maximum transmit power corresponding to the power level of the terminal in a single carrier scenario and the transmit power difference, wherein the transmit power difference is the difference between the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the maximum transmit power corresponding to the target power level of the uplink carrier of at least one cell of the terminal in the carrier aggregation scenario; and The lower limit of the maximum transmit power is adjusted according to the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the transmit power difference.

12. The method according to claim 3 or 4, wherein: When it is determined that the power adjustment scheme is to adopt an additional maximum transmit power fallback mode, the terminal adjusting the uplink transmit power includes: Determining the A-MPR corresponding to each waveform according to the corresponding relationship between the waveform and the additional maximum transmit power back-off A-MPR, wherein the waveform includes discrete Fourier transform spread orthogonal frequency division multiplexing DFT-s-OFDM and cyclic prefix orthogonal frequency division multiplexing CP-OFDM; and The additional maximum transmit power backoff mode is performed according to the A-MPR.

13. The method according to claim 2, further comprising: When selecting a terminal using an overlapping frequency band in a carrier aggregation combination, the base station determines whether each terminal in the candidate terminals includes a terminal capable of adjusting a transmit power level; In a case where the candidate terminals include terminals capable of adjusting the transmit power level, selecting a terminal for configuring carrier aggregation of overlapping frequency bands from the terminals capable of adjusting the transmit power level; In a case where the candidate terminals do not include a terminal having the capability of adjusting the transmit power level, a terminal for configuring carrier aggregation of overlapping frequency bands is selected from the terminals that do not have the capability of adjusting the transmit power level.

14. A carrier control method, comprising: acquiring an uplink subcarrier parameter from a base station, wherein, when determining that a first uplink frequency band partially overlaps with a first downlink frequency band, the base station determines a second uplink frequency band and a second downlink frequency band according to the first uplink frequency band and the first downlink frequency band, and determines an uplink subcarrier parameter, wherein there is a frequency interval between the second downlink frequency band and the second uplink frequency band; and The uplink transmission power is adjusted according to the uplink subcarrier parameter, including: determining the corresponding transmission power difference according to the correspondence between the maximum transmission power corresponding to the power level of the terminal in a single carrier scenario and the transmission power difference, wherein the transmission power difference is the difference between the maximum transmission power corresponding to the power level of the terminal in the single carrier scenario and the maximum transmission power corresponding to the target power level of the uplink carrier of at least one cell of the terminal in the carrier aggregation scenario; and adjusting the lower limit of the maximum transmission power according to the maximum transmission power corresponding to the power level of the terminal in the single carrier scenario and the transmission power difference.

15. The method according to claim 14, further comprising: When the terminal has the capability to adjust the transmit power level, sending capability information of adjusting the transmit power level to the base station, so that the base station determines a power adjustment scheme according to the capability information; and A power adjustment scheme is received from the base station, so as to adjust uplink transmission power according to the power adjustment scheme.

16. The method according to claim 14, wherein: The adjusting the uplink transmission power comprises: Determining the A-MPR corresponding to each waveform according to the corresponding relationship between the waveform and the additional maximum transmit power back-off A-MPR, wherein the waveform includes discrete Fourier transform spread orthogonal frequency division multiplexing DFT-s-OFDM and cyclic prefix orthogonal frequency division multiplexing CP-OFDM; and The additional maximum transmit power backoff mode is performed according to the A-MPR.

17. A carrier control device, comprising: a parameter determination unit, configured to determine a second uplink frequency band and a second downlink frequency band according to the first uplink frequency band and the first downlink frequency band, and determine an uplink subcarrier parameter when it is determined that the first uplink frequency band partially overlaps with the first downlink frequency band, wherein there is a frequency interval between the second downlink frequency band and the second uplink frequency band; and The first sending unit is configured to send the uplink subcarrier parameter to the terminal so that the terminal adjusts the uplink transmit power, including: determining the corresponding transmit power difference according to the correspondence between the maximum transmit power corresponding to the power level of the terminal in a single carrier scenario and the transmit power difference, wherein the transmit power difference is the difference between the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the maximum transmit power corresponding to the target power level of the uplink carrier of at least one cell of the terminal in the carrier aggregation scenario; adjusting the lower limit of the maximum transmit power according to the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the transmit power difference.

18. The apparatus according to claim 17, further comprising: A capability determination unit configured to obtain capability information of adjusting the transmit power level reported by the terminal; and The second sending unit is configured to determine a power adjustment scheme according to the capability information, and send the power adjustment scheme to the terminal, so that the terminal determines a parameter for adjusting uplink transmission power according to the power adjustment scheme.

19. The apparatus according to claim 18, further comprising: A terminal selection unit is configured to determine whether each terminal in the candidate terminals includes a terminal with the ability to adjust the transmission power level when selecting a terminal for use in an overlapping frequency band in a carrier aggregation combination; when the candidate terminals include terminals with the ability to adjust the transmission power level, select a terminal for carrier aggregation configured with the overlapping frequency band from the terminals with the ability to adjust the transmission power level; when the candidate terminals do not include terminals with the ability to adjust the transmission power level, select a terminal for carrier aggregation configured with the overlapping frequency band from terminals without the ability to adjust the transmission power level.

20. A carrier control device, comprising: a parameter acquisition unit, configured to acquire an uplink subcarrier parameter from a base station, wherein the base station determines a second uplink frequency band and a second downlink frequency band according to the first uplink frequency band and the first downlink frequency band when determining that the first uplink frequency band partially overlaps with the first downlink frequency band, and determines an uplink subcarrier parameter, and there is a frequency interval between the second downlink frequency band and the second uplink frequency band; and An adjustment unit is configured to adjust the uplink transmit power according to the uplink subcarrier parameter, including: determining the corresponding transmit power difference according to the correspondence between the maximum transmit power corresponding to the power level of the terminal in a single carrier scenario and the transmit power difference, wherein the transmit power difference is the difference between the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the maximum transmit power corresponding to the target power level of the uplink carrier of at least one cell of the terminal in the carrier aggregation scenario; adjusting the lower limit of the maximum transmit power according to the maximum transmit power corresponding to the power level of the terminal in the single carrier scenario and the transmit power difference.

21. The apparatus according to claim 20, further comprising: a capability reporting unit configured to send capability information of adjusting the transmit power level to the base station when the terminal has the capability of adjusting the transmit power level, so that the base station determines a power adjustment scheme according to the capability information; and The scheme acquisition unit is configured to receive a power adjustment scheme from the base station, wherein the adjustment unit adjusts the uplink transmission power according to the power adjustment scheme.

22. A network device comprising: Memory; as well as A processor coupled to the memory, the processor being configured to execute the method according to any one of claims 1 to 16 based on a computer program stored in the memory.

23. A non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method according to any one of claims 1 to 16.

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