Mcs target code rate dynamic correction method and device, dss base station

Abstract

The present disclosure provides a kind of MCS target code rate dynamic correction method and device, DSS base station.MCS target code rate dynamic correction method includes: whether the PRB scheduled by NR terminal is located in NR exclusive area is detected;If the PRB scheduled by NR terminal is not located in NR exclusive area, the CQI sent by NR terminal is obtained;The MCS target code rate is corrected using the obtained CQI, the position of NR terminal and LTE CRS port number, DSS scheduling bandwidth and SSS bandwidth;Link adaptation coding and modulation are carried out using the MCS target code rate after correction.The present disclosure can effectively improve the downlink rate of NR terminal, improve the performance and capacity of NR in DSS, improve DSS resource utilization, improve NR user experience, and reduce DSS optimization cost.

Description

Technical Field

[0001] This disclosure relates to the field of communications, and in particular to a method and apparatus for dynamic correction of MCS target code rate and a DSS base station. Background Technology

[0002] DSS (Dynamic Spectrum Sharing) technology enables dynamic spectrum sharing between 4G and 5G, meeting the traffic needs of 4G and 5G users on limited spectrum resources. It utilizes instantaneous dynamic allocation of spectrum to provide optimal performance for 4G and 5G devices. Summary of the Invention

[0003] In field tests of a 40M bandwidth DSS 40M / LTE (Long Term Evolution) 20M, the inventors discovered that when the NR (New Radio) terminal was at a mid- or far-field location, the CRS (Cell Reference Signal) of nearby LTE base stations caused strong interference to the downlink PDSCH (Physical Downlink Shared Channel) of the DSS / NR. Due to the CRS interference, the CQI (Channel Quality Indicator) of the NR / LTE hybrid 20M portion was inaccurate, resulting in inaccurate reporting. According to the original target code rate of MCS (Modulation and Coding Scheme), the BLER (Block Error Rate) exceeded the target value. The AMC (Adaptive Modulation and Code) downgrade of the MCS caused a sharp drop in the downlink rate of the 40M NR terminal, which seriously affected the NR performance and capacity in the DSS.

[0004] like Figure 1 As shown, label 1 is NR PDCCH (Physical Downlink Control Channel) 1, label 2 is LTE CRS, and label 3 is LTE PDCCH. In the NR / LTE hybrid part 4, due to CRS interference, the reported CQI is inaccurate, causing the 40M NR terminal rate to drop from level 21 to level 18, as shown below. Figure 2 As shown, this severely affects the performance and capacity of NR in DSS.

[0005] Accordingly, this disclosure provides a dynamic MCS target bit rate correction scheme, which can effectively improve the downlink rate of NR terminals, improve the performance and capacity of NR in DSS, improve DSS resource utilization, enhance the NR user experience, and reduce DSS optimization costs.

[0006] According to a first aspect of the present disclosure, a method for dynamic correction of MCS target code rate is provided, executed by an MCS target code rate dynamic correction device, comprising: detecting whether the PRB scheduled by the NR terminal is located in the NR exclusive area; if the PRB scheduled by the NR terminal is not located in the NR exclusive area, acquiring the CQI sent by the NR terminal; correcting the MCS target code rate using the acquired CQI, the location of the NR terminal and the number of LTE CRS ports, the DSS scheduling bandwidth and the SSS bandwidth; and performing link adaptive coding and modulation using the corrected MCS target code rate.

[0007] In some embodiments, if the PRB scheduled by the NR terminal is not located in the NR exclusive area, obtaining the CQI sent by the NR terminal includes: if the PRB scheduled by the NR terminal is not located in the NR exclusive area, detecting whether the PRB scheduled by the NR terminal is located in the NR and LTE mixed area; if the PRB scheduled by the NR terminal is located in the NR and LTE mixed area, obtaining the CQI sent by the NR terminal through the DSS bandwidth.

[0008] In some embodiments, if the PRB scheduled by the NR terminal spans the NR exclusive area and the NR and LTE mixed area, then the CQI transmitted by the NR terminal through the SSS bandwidth and DSS bandwidth is obtained.

[0009] In some embodiments, correcting the MCS target code rate using the acquired CQI, the location and number of LTE CRS ports of the NR terminal, the DSS scheduling bandwidth, and the SSS bandwidth includes: obtaining the original MCS target code rate based on the mapping relationship between the CQI and the MCS; determining a first parameter α based on the location and number of LTE CRS ports of the NR terminal; determining a second parameter β based on the ratio of the DSS scheduling bandwidth to the total scheduling bandwidth, wherein the total scheduling bandwidth is the sum of the DSS scheduling bandwidth and the SSS bandwidth; and obtaining the corrected MCS target code rate based on the original MCS target code rate, the first parameter α, and the second parameter β.

[0010] In some embodiments, obtaining the corrected MCS target bitrate based on the original MCS target bitrate, the first parameter α, and the second parameter β includes: using the formula

[0011] CoreRate_New[MCS(i)]=(1-α)×β×CoreRate_Old[MCS(i)]+(1-β)×CoreRate_Old[MCS(i)]

[0012] Calculate the corrected MCS target bitrate CoreRate_New[MCS(i)], where CoreRate_Old[MCS(i)] is the original MCS target bitrate, and MCS(i) is the i-th level number of the MCS.

[0013] According to a second aspect of the present disclosure, an MCS target code rate dynamic correction apparatus is provided, comprising: a first processing module configured to detect whether a PRB scheduled by an NR terminal is located in an NR exclusive area; a second processing module configured to acquire a CQI sent by the NR terminal if the PRB scheduled by the NR terminal is not located in an NR exclusive area; a third processing module configured to correct the MCS target code rate using the acquired CQI, the location of the NR terminal and the number of LTE CRS ports, the DSS scheduling bandwidth and the SSS bandwidth; and a fourth processing module configured to perform link adaptive coding and modulation using the corrected MCS target code rate.

[0014] In some embodiments, the second processing module is configured to detect whether the PRB scheduled by the NR terminal is located in a mixed NR and LTE area if the PRB is not located in the NR exclusive area; and to obtain the CQI sent by the NR terminal through the DSS bandwidth if the PRB scheduled by the NR terminal is located in the mixed NR and LTE area.

[0015] In some embodiments, the second processing module is configured to acquire the CQI transmitted by the NR terminal through SSS bandwidth and DSS bandwidth if the PRB scheduled by the NR terminal spans the NR exclusive area and the NR and LTE mixed area.

[0016] In some embodiments, the third processing module is configured to obtain the original MCS target code rate according to the mapping relationship between CQI and MCS, determine the first parameter α according to the location of the NR terminal and the number of LTE CRS ports, determine the second parameter β according to the ratio of the DSS scheduling bandwidth to the total scheduling bandwidth, wherein the total scheduling bandwidth is the sum of the DSS scheduling bandwidth and the SSS bandwidth, and obtain the corrected MCS target code rate according to the original MCS target code rate, the first parameter α and the second parameter β.

[0017] In some embodiments, the third processing module is configured to utilize the formula

[0018] CoreRate_New[MCS(i)]=(1-α)×β×CoreRate_Old[MCS(i)]+(1-β)×CoreRate_Old[MCS(i)]

[0019] Calculate the corrected MCS target bitrate CoreRate_New[MCS(i)], where CoreRate_Old[MCS(i)] is the original MCS target bitrate, and MCS(i) is the i-th level number of the MCS.

[0020] According to a third aspect of the present disclosure, an MCS target bitrate dynamic correction apparatus is provided, comprising: a memory configured to store instructions; and a processor coupled to the memory, the processor being configured to execute instructions stored in the memory to implement the method as described in any of the above embodiments.

[0021] According to a fourth aspect of the present disclosure, a DSS base station is provided, including an MCS target code rate dynamic correction device as described in any of the above embodiments.

[0022] According to a fifth aspect of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions that, when executed by a processor, implement the method as described in any of the above embodiments.

[0023] Other features and advantages of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the DSS band according to an embodiment of the present disclosure;

[0026] Figure 2 This is a schematic diagram illustrating the rate reduction of an NR terminal according to an embodiment of the present disclosure;

[0027] Figure 3 This is a flowchart illustrating an embodiment of the MCS target bitrate dynamic correction method of this disclosure;

[0028] Figure 4 This is a schematic diagram illustrating NR terminal rate correction according to an embodiment of this disclosure;

[0029] Figure 5 This is a flowchart illustrating another embodiment of the MCS target bitrate dynamic correction method.

[0030] Figure 6 This is a schematic diagram of the structure of an MCS target bit rate dynamic correction device according to an embodiment of the present disclosure;

[0031] Figure 7 This is a schematic diagram of the structure of an MCS target bit rate dynamic correction device according to another embodiment of the present disclosure;

[0032] Figure 8 This is a schematic diagram of the structure of a DSS base station according to an embodiment of the present disclosure. Detailed Implementation

[0033] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0034] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this disclosure.

[0035] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0036] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0037] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0039] Figure 3This is a flowchart illustrating an embodiment of the MCS target code rate dynamic correction method according to this disclosure. In some embodiments, the following MCS target code rate dynamic correction method is executed by an MCS target code rate dynamic correction device in a DSS base station.

[0040] In step 301, it is detected whether the PRB (Physical Resource Block) scheduled by the NR terminal is located in the NR exclusive zone.

[0041] It should be noted that if the PRB scheduled by the NR terminal is located in an NR-exclusive area, its reported CQI is not affected by interference from neighboring LTE CRS, and therefore no MCS target code rate correction is performed. If the PRB scheduled by the NR terminal is not located in an NR-exclusive area, such as in an NR / LTE mixed area or spanning both NR-exclusive and NR / LTE mixed areas, its reported CQI is wholly or partially affected by interference from neighboring LTE CRS, and therefore MCS target code rate correction is required.

[0042] In step 302, if the PRB scheduled by the NR terminal is not located in the NR exclusive area, the CQI sent by the NR terminal is obtained.

[0043] In step 303, the target code rate of the MCS is corrected using the obtained CQI, the location of the NR terminal and the number of LTE CRS ports, the DSS scheduling bandwidth and the SSS (Secondary Synchronization Signal) bandwidth.

[0044] In some embodiments, the original MCS target bitrate is obtained based on the mapping relationship between CQI and MCS.

[0045] Next, the first parameter α is determined based on the location of the NR terminal and the number of LTE CRS ports. Considering the impact of neighboring cell LTE CRS on the NR PDSCH, the closer the NR terminal is to the boundary between the DSS base station and the LTE, the greater the impact of LTE CRS. Taking LTE 2-Port as an example, the loss of LTE CRS on the far point of the NR PDSCH is LOSS0 (e.g., 30%). When the NR terminal is under the DSS base station, α is taken as 0.6*LOSS0 for the near point, α is taken as 0.8*LOSS0 for the mid point, and LOSS0 for the far point.

[0046] Next, the second parameter β is determined based on the ratio of the DSS scheduling bandwidth to the total scheduling bandwidth, where the total scheduling bandwidth is the sum of the DSS scheduling bandwidth and the SSS bandwidth.

[0047] For example, the second parameter β = DSS bandwidth / (SSS bandwidth + DSS bandwidth).

[0048] Finally, the corrected MCS target bitrate is obtained based on the original MCS target bitrate, the first parameter α, and the second parameter β.

[0049] In some embodiments, the corrected MCS target bitrate CoreRate_New[MCS(i)] is calculated using formula (1).

[0050] CoreRate_New[MCS(i)]=(1-α)×β×CoreRate_Old[MCS(i)]+(1-β)×CoreRate_Old[MCS(i)] (1)

[0051] Where CoreRate_Old[MCS(i)] is the original MCS target bitrate, and MCS(i) is the i-th level number of the MCS.

[0052] In step 304, link adaptive coding and modulation are performed using the corrected MCS target code rate.

[0053] like Figure 4 As shown, although the reported CQI is inaccurate due to CRS interference, dynamic correction of the target bit rate via MCS avoids reducing the 40M NR terminal rate from level 21 to level 18. This effectively improves the user experience.

[0054] Figure 5 This is a flowchart illustrating another embodiment of the MCS target code rate dynamic correction method. In some embodiments, the following MCS target code rate dynamic correction method is executed by an MCS target code rate dynamic correction device in a DSS base station.

[0055] In step 501, the DSS base station is initialized after it is powered on.

[0056] In step 502, it is determined whether the MCS target bitrate correction switch is turned on.

[0057] If the MCS target bitrate correction switch is not turned on, proceed to step 512. Otherwise, proceed to step 503.

[0058] In step 503, it is detected whether the PRB scheduled by the NR terminal is located in the NR exclusive zone.

[0059] If the PRB scheduled by the NR terminal is located in the NR exclusive zone, proceed to step 512. Otherwise, proceed to step 504.

[0060] In step 504, it is detected whether the PRB scheduled by the NR terminal is located in the NR and LTE mixed area.

[0061] If the PRB scheduled by the NR terminal is located in the NR and LTE mixed area, then proceed to step 505; otherwise, proceed to step 506.

[0062] In step 505, the CQI transmitted by the NR terminal through the DSS bandwidth is obtained. Then step 507 is executed.

[0063] In step 506, the CQI sent by the NR terminal through the SSS bandwidth and DSS bandwidth is obtained.

[0064] In step 507, the original MCS target bitrate is obtained according to the mapping relationship between CQI and MCS.

[0065] In step 508, the first parameter α is determined based on the location of the NR terminal and the number of LTE CRS ports.

[0066] In step 509, the second parameter β is determined based on the ratio of the DSS scheduling bandwidth to the total scheduling bandwidth. For example, the second parameter β = DSS bandwidth / (SSS bandwidth + DSS bandwidth).

[0067] In step 510, the corrected MCS target bitrate is calculated using the above formula (1).

[0068] In step 511, link adaptive coding and modulation are performed using the corrected MCS target code rate.

[0069] In step 512, the MCS target bitrate is not corrected.

[0070] Figure 6 This is a schematic diagram of the structure of an MCS target bitrate dynamic correction device according to an embodiment of this disclosure. Figure 6 As shown, the MCS target bit rate dynamic correction device includes a first processing module 61, a second processing module 62, a third processing module 63, and a fourth processing module 64.

[0071] The first processing module 61 is configured to detect whether the PRB scheduled by the NR terminal is located in the NR exclusive zone.

[0072] The second processing module 62 is configured to acquire the CQI sent by the NR terminal if the PRB scheduled by the NR terminal is not located in the NR exclusive area.

[0073] In some embodiments, the second processing module 62 is configured to detect whether the PRB scheduled by the NR terminal is located in a mixed NR and LTE area if the PRB is not located in the NR exclusive area, and to obtain the CQI sent by the NR terminal through the DSS bandwidth if the PRB scheduled by the NR terminal is located in the mixed NR and LTE area.

[0074] In some embodiments, the second processing module 62 is configured to acquire the CQI transmitted by the NR terminal through the SSS bandwidth and DSS bandwidth if the PRB scheduled by the NR terminal spans the NR exclusive area and the NR and LTE mixed area.

[0075] The third processing module 63 is configured to correct the MCS target code rate using the acquired CQI, the location of the NR terminal and the number of LTE CRS ports, DSS scheduling bandwidth and SSS bandwidth.

[0076] In some embodiments, the third processing module 63 is configured to obtain the original MCS target code rate according to the mapping relationship between CQI and MCS, determine the first parameter α according to the location of the NR terminal and the number of LTE CRS ports, determine the second parameter β according to the ratio of DSS scheduling bandwidth to total scheduling bandwidth, wherein the total scheduling bandwidth is the sum of DSS scheduling bandwidth and SSS bandwidth, and obtain the corrected MCS target code rate according to the original MCS target code rate, the first parameter α and the second parameter β.

[0077] In some embodiments, the third processing module 63 uses the MCS target bitrate corrected by the above formula (1).

[0078] The fourth processing module 64 is configured to perform link adaptive coding and modulation using the modified MCS target code rate.

[0079] Figure 7 This is a schematic diagram of the structure of an MCS target bitrate dynamic correction device according to another embodiment of this disclosure. Figure 7 As shown, the MCS target bit rate dynamic correction device includes a memory 71 and a processor 72.

[0080] Memory 71 is used to store instructions, and processor 72 is coupled to memory 71. Processor 72 is configured to execute instructions based on memory storage, as shown in the example below. Figure 3 or Figure 5 The method involved in any of the embodiments.

[0081] like Figure 7 As shown, the MCS target bitrate dynamic correction device also includes a communication interface 73 for information exchange with other devices. Simultaneously, the MCS target bitrate dynamic correction device also includes a bus 74, through which the processor 72, communication interface 73, and memory 71 communicate with each other.

[0082] The memory 71 may include high-speed RAM, and may also include non-volatile memory, such as at least one disk drive. The memory 71 may also be a memory array. The memory 71 may also be divided into blocks, and these blocks may be combined into virtual volumes according to certain rules.

[0083] Furthermore, processor 72 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present disclosure.

[0084] This disclosure also relates to a computer-readable storage medium storing computer instructions that, when executed by a processor, implement... Figure 3 or Figure 5 The method involved in any of the embodiments.

[0085] Figure 8 This is a schematic diagram of the structure of a DSS base station according to an embodiment of this disclosure. Figure 8 As shown, the DSS base station 81 includes an MCS target code rate dynamic correction device 82. The MCS target code rate dynamic correction device 82 is... Figure 6-7 The MCS target bit rate dynamic correction device described in any one of the following statements.

[0086] By implementing the above-described scheme of this disclosure, the following beneficial effects can be achieved:

[0087] 1. It effectively solves the problem of sharp drop in downlink rate of 40M NR terminal in the 40M bandwidth DSS (NR 40M / LTE20M) technical solution, and is highly targeted at the current implementation and construction of 40M DSS networks;

[0088] 2. It greatly improves the reliability and completeness of the DSS technical solution, shortens the network construction cycle, and reduces network construction and maintenance costs;

[0089] 3. Fewer modifications are required, the implementation complexity is low, and it is easy to implement the system and promote the solution.

[0090] In some embodiments, the functional units described above may be implemented as general-purpose processors, programmable logic controllers (PLCs), digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof for performing the functions described herein.

[0091] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0092] The description in this disclosure is provided for illustrative and descriptive purposes only and is not intended to be exhaustive or to limit the disclosure to its forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of this disclosure and to enable those skilled in the art to understand this disclosure and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A method for dynamic correction of MCS target bitrate, executed by an MCS target bitrate dynamic correction device, comprising: Detect whether the PRB scheduled by the NR terminal is located in the NR exclusive zone; If the PRB scheduled by the NR terminal is not located in the NR exclusive area, then the CQI sent by the NR terminal is obtained; The target code rate of the MCS is corrected using the acquired CQI, the location of the NR terminal and the number of LTE CRS ports, the DSS scheduling bandwidth and the SSS bandwidth; Link adaptive coding and modulation are performed using the corrected MCS target code rate; The correction of the MCS target code rate using the acquired CQI, the location and number of LTE CRS ports of the NR terminal, the DSS scheduling bandwidth and SSS bandwidth includes: The original MCS target bitrate is obtained based on the mapping relationship between CQI and MCS; The first parameter α is determined based on the location of the NR terminal and the number of LTE CRS ports; The second parameter β is determined based on the ratio of the DSS scheduling bandwidth to the total scheduling bandwidth, wherein the total scheduling bandwidth is the sum of the DSS scheduling bandwidth and the SSS bandwidth; The corrected MCS target bitrate is obtained based on the original MCS target bitrate, the first parameter α, and the second parameter β, wherein the formula is used. CoreRate_New[MCS(i)]=(1-α)×β×CoreRate_Old[MCS(i)]+ (1-β)× CoreRate_Old[MCS(i)] Calculate the corrected MCS target bitrate CoreRate_New[MCS(i)], where CoreRate_Old[MCS(i)] is the original MCS target bitrate, and MCS(i) is the i-th level number of the MCS.

2. The method according to claim 1, wherein, If the PRB scheduled by the NR terminal is not located in the NR exclusive zone, then obtaining the CQI sent by the NR terminal includes: If the PRB scheduled by the NR terminal is not located in the NR exclusive area, then it is detected whether the PRB scheduled by the NR terminal is located in the NR and LTE mixed area. If the PRB scheduled by the NR terminal is located in the NR and LTE mixed area, then the CQI sent by the NR terminal through the DSS bandwidth is obtained.

3. The method according to claim 2, further comprising: If the PRB scheduled by the NR terminal spans the NR exclusive area and the NR and LTE mixed area, then the CQI sent by the NR terminal through the SSS bandwidth and DSS bandwidth is obtained.

4. An MCS target bitrate dynamic correction device, comprising: The first processing module is configured to detect whether the PRB scheduled by the NR terminal is located in the NR exclusive zone; The second processing module is configured to obtain the CQI sent by the NR terminal if the PRB scheduled by the NR terminal is not located in the NR exclusive area. The third processing module is configured to correct the MCS target code rate using the acquired CQI, the location and number of LTE CRS ports of the NR terminal, the DSS scheduling bandwidth, and the SSS bandwidth. Specifically, it obtains the original MCS target code rate based on the mapping relationship between the CQI and the MCS; determines a first parameter α based on the location and number of LTE CRS ports of the NR terminal; determines a second parameter β based on the ratio of the DSS scheduling bandwidth to the total scheduling bandwidth, where the total scheduling bandwidth is the sum of the DSS scheduling bandwidth and the SSS bandwidth; and obtains the corrected MCS target code rate based on the original MCS target code rate, the first parameter α, and the second parameter β, using the formula... CoreRate_New[MCS(i)]=(1-α)×β×CoreRate_Old[MCS(i)]+ (1-β)× CoreRate_Old[MCS(i)] Calculate the corrected MCS target bitrate CoreRate_New[MCS(i)], where CoreRate_Old[MCS(i)] is the original MCS target bitrate, and MCS(i) is the i-th level number of the MCS; The fourth processing module is configured to perform link adaptive coding and modulation using the modified MCS target code rate.

5. The apparatus according to claim 4, wherein, The second processing module is configured to detect whether the PRB scheduled by the NR terminal is located in the NR and LTE mixed area if the PRB is not located in the NR exclusive area; and to obtain the CQI sent by the NR terminal through the DSS bandwidth if the PRB scheduled by the NR terminal is located in the NR and LTE mixed area.

6. The apparatus according to claim 5, wherein, The second processing module is configured to acquire the CQI sent by the NR terminal through SSS bandwidth and DSS bandwidth if the PRB scheduled by the NR terminal spans the NR exclusive area and the NR and LTE mixed area.

7. An MCS target bitrate dynamic correction device, comprising: The memory is configured to store instructions; A processor, coupled to memory, configured to implement the method as described in any one of claims 1-3 based on memory-stored instruction execution.

8. A DSS base station, comprising an MCS target code rate dynamic correction device as described in any one of claims 4-7.

9. A non-transient computer-readable storage medium, wherein, A computer-readable storage medium stores computer instructions that, when executed by a processor, implement the method as described in any one of claims 1-3.

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