Carrier dynamic change method and apparatus, dss base station

Abstract

The present disclosure provides a carrier dynamic transformation method and device, and a DSS base station. The carrier dynamic transformation method comprises: receiving a first CQI associated with an NR exclusive area and a second CQI associated with an NR and LTE mixed area reported by a user terminal; judging whether the user terminal is interfered by a neighboring area LTE CRS according to the first CQI and the second CQI; if the user terminal is interfered by the neighboring area LTE CRS, mapping first MCS information by using the first CQI and mapping second MCS information by using the second CQI; setting a bandwidth of a primary carrier as a preset bandwidth and activating a secondary carrier, wherein the bandwidth of the secondary carrier is a variable bandwidth, and the bandwidth of the primary carrier and the bandwidth of the secondary carrier do not overlap; sending first notification information to the user terminal, so that the user terminal knows the change of the primary carrier; in the NR exclusive area, scheduling a primary carrier bandwidth resource based on the first MCS information and scheduling a secondary carrier bandwidth resource based on the second MCS information. The present disclosure can effectively solve the problem of sharp drop of the downlink rate of the user terminal.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of communication, in particular to a carrier dynamic transformation method and device, and a DSS base station. BACKGROUND

[0002] DSS (Dynamic Spectrum Sharing) technology realizes 4G / 5G dynamic spectrum sharing, meets the respective traffic demands of 4G / 5G users on limited spectrum resources, and provides optimal performance for 4G and 5G devices by dynamically allocating spectrum at a moment. SUMMARY

[0003] The inventor found in a 40M bandwidth DSS (NR (New Radio) 40M / LTE (Long Term Evolution) 20M) field test that when the position (for example, the middle and far points in the cell) of the NR terminal is interfered by the CRS (Cell Reference Signal) of the neighboring 4G LTE base station, that is, when the DSS / NR overlapping part is seriously interfered by the neighboring LTE CRS, since there is only one set of MCS (Modulation and Coding Scheme) parameters in the 40M DSS / NR downlink within the 40M bandwidth, the BLER (Block Error Rate) is deteriorated, the MCS is reduced, and finally the NR downlink rate is sharply reduced, which seriously affects the performance, capacity and user experience of the 40M DSS network.

[0004] Accordingly, the present disclosure provides a carrier dynamic transformation scheme, which can effectively improve the NR downlink rate and user experience, improve the performance and capacity of the DSS network, improve the utilization rate of DSS resources, reduce the operation and optimization cost of the DSS, and is conducive to the implementation and promotion of the DSS technical scheme.

[0005] According to a first aspect of the embodiments of the present disclosure, a carrier dynamic transformation method is provided, which is performed by a carrier dynamic transformation device and includes the following steps. A first CQI associated with an NR exclusive area and a second CQI associated with an NR and LTE mixed area are received. It is determined whether the user terminal is interfered by a neighboring area LTE CRS according to the first CQI and the second CQI. If the user terminal is interfered by the neighboring area LTE CRS, a first MCS information is mapped by using the first CQI, and a second MCS information is mapped by using the second CQI. A bandwidth of a primary carrier is set as a preset bandwidth, and a secondary carrier is activated, wherein the bandwidth of the secondary carrier is a variable bandwidth, and the bandwidth of the primary carrier and the bandwidth of the secondary carrier do not overlap. First notification information is sent to the user terminal, so that the user terminal knows the change of the primary carrier. In the NR exclusive area, the bandwidth resource of the primary carrier is scheduled based on the first MCS information, and the bandwidth resource of the secondary carrier is scheduled based on the second MCS information.

[0006] In some embodiments, if the user terminal is not interfered by the neighboring area LTE CRS, a third MCS information is mapped by using the first CQI and the second CQI. The bandwidth of the primary carrier is set as a third preset bandwidth, and the secondary carrier is controlled to enter a dormant state. The third preset bandwidth is a sum of the preset bandwidth and the variable bandwidth, and the bandwidth of the primary carrier and the bandwidth of the secondary carrier overlap. Second notification information is sent to the user terminal, so that the user terminal knows the change of the primary carrier. In the NR exclusive area, the bandwidth resource of the primary carrier is scheduled based on the third MCS information.

[0007] In some embodiments, the overlapping part of the bandwidth of the primary carrier and the bandwidth of the secondary carrier is the variable bandwidth.

[0008] In some embodiments, mapping the third MCS information by using the first CQI and the second CQI includes calculating a weighted sum of the first CQI and the second CQI, and mapping the third MCS information by using the weighted sum.

[0009] In some embodiments, determining whether the user terminal is interfered by the neighboring area LTE CRS according to the first CQI and the second CQI includes determining whether an absolute value of a difference between the first CQI and the second CQI is greater than a preset interference threshold. If the absolute value of the difference between the first CQI and the second CQI is greater than the preset interference threshold, it is determined that the user terminal is interfered by the neighboring area LTE CRS.

[0010] In some embodiments, if the absolute value of the difference between the first CQI and the second CQI is not greater than the preset interference threshold, it is determined that the user terminal is not interfered by the neighboring area LTE CRS.

[0011] According to a second aspect of the embodiments of the present disclosure, a carrier dynamic transformation device is provided, which comprises: a first processing module configured to receive a first CQI associated with an NR exclusive area and a second CQI associated with an NR and LTE mixed area reported by a user terminal; a second processing module configured to determine whether the user terminal is interfered by a neighboring area LTE CRS according to the first CQI and the second CQI; a third processing module configured to map a first MCS information by using the first CQI and map a second MCS information by using the second CQI if the user terminal is interfered by the neighboring area LTE CRS; a fourth processing module configured to set a bandwidth of a primary carrier as a preset bandwidth, activate a secondary carrier, wherein the bandwidth of the secondary carrier is a variable bandwidth, the bandwidth of the primary carrier and the bandwidth of the secondary carrier do not overlap, send first notification information to the user terminal so that the user terminal knows the change of the primary carrier, and schedule a primary carrier bandwidth resource based on the first MCS information and schedule a secondary carrier bandwidth resource based on the second MCS information in the NR exclusive area.

[0012] In some embodiments, the third processing module is configured to map a third MCS information by using the first CQI and the second CQI if the user terminal is not interfered by the neighboring area LTE CRS, and the fourth processing module is configured to set the bandwidth of the primary carrier as a third preset bandwidth, control the secondary carrier to enter a dormant state, the third preset bandwidth is a sum of the preset bandwidth and the variable bandwidth, and the bandwidth of the primary carrier and the bandwidth of the secondary carrier overlap, send second notification information to the user terminal so that the user terminal knows the change of the primary carrier, and schedule the primary carrier bandwidth resource based on the third MCS information in the NR exclusive area.

[0013] In some embodiments, the overlapping part of the bandwidth of the primary carrier and the bandwidth of the secondary carrier is the variable bandwidth.

[0014] In some embodiments, the third processing module is configured to calculate a weighted sum of the first CQI and the second CQI, and map the third MCS information by using the weighted sum.

[0015] In some embodiments, the second processing module is configured to determine whether an absolute value of a difference between the first CQI and the second CQI is greater than a preset interference threshold, and determine that the user terminal is interfered by the neighboring area LTE CRS if the absolute value of the difference between the first CQI and the second CQI is greater than the preset interference threshold.

[0016] In some embodiments, the second processing module is configured to determine that the user terminal is not interfered by the neighboring area LTE CRS if the absolute value of the difference between the first CQI and the second CQI is not greater than the preset interference threshold.

[0017] According to a third aspect of the embodiments of the present disclosure, a carrier dynamic transformation apparatus is provided, comprising: a memory configured to store instructions; a processor coupled to the memory, the processor being configured to execute the method according to any one of the above embodiments based on the instructions stored in the memory.

[0018] According to a fourth aspect of the embodiments of the present disclosure, a DSS base station is provided, comprising the carrier dynamic transformation apparatus according to any one of the above embodiments.

[0019] According to a fifth aspect of the embodiments of the present disclosure, a computer readable storage medium is provided, wherein the computer readable storage medium stores computer instructions, and the instructions are executed by a processor to implement the method according to any one of the above embodiments.

[0020] Other features and advantages of the present disclosure will be apparent from the following detailed description of exemplary embodiments of the present disclosure, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings.

[0022] Figure 1 DSS frequency band schematic diagram for an embodiment of the present disclosure;

[0023] Figure 2 Flowchart of the carrier dynamic transformation method for an embodiment of the present disclosure;

[0024] Figure 3 Carrier schematic diagram for an embodiment of the present disclosure;

[0025] Figure 4 Flowchart of the carrier dynamic transformation method for another embodiment of the present disclosure;

[0026] Figure 5 Carrier schematic diagram for another embodiment of the present disclosure;

[0027] Figure 6 Structure schematic diagram of the carrier dynamic transformation apparatus for an embodiment of the present disclosure;

[0028] Figure 7 Structure schematic diagram of the carrier dynamic transformation apparatus for another embodiment of the present disclosure;

[0029] Figure 8This is a schematic diagram of the structure of a DSS base station according to an embodiment of the present disclosure. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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 section ( Figure 1 The downlink rate of NR terminals drops sharply due to CRS interference (the xM bandwidth portion of the bandwidth).

[0037] To address the aforementioned issues, this disclosure provides a dynamic carrier conversion scheme.

[0038] Figure 2A flowchart of a carrier dynamic switching method for an embodiment of the present disclosure is shown. In some embodiments, the carrier dynamic switching method below is performed by a carrier dynamic switching device in a DSS base station.

[0039] At step 201, a first CQI (Channel Quality Indicator) associated with an NR-only region and a second CQI associated with an NR and LTE mixed region reported by a user terminal are received.

[0040] At step 202, it is determined whether the user terminal is interfered by a neighbor LTE CRS based on the first CQI and the second CQI.

[0041] In some embodiments, it is determined whether the user terminal is interfered by the neighbor LTE CRS by judging whether an absolute value of a difference between the first CQI and the second CQI is greater than a preset interference threshold. If the absolute value of the difference between the first CQI and the second CQI is greater than the preset interference threshold, i.e., |CQI1-CQI2|>Threshold_CRS, it is determined that the user terminal is interfered by the neighbor LTE CRS.

[0042] If the absolute value of the difference between the first CQI and the second CQI is not greater than the preset interference threshold, it is determined that the user terminal is not interfered by the neighbor LTE CRS.

[0043] At step 203, if the user terminal is interfered by the neighbor LTE CRS, a first MCS information is mapped using the first CQI, and a second MCS information is mapped using the second CQI.

[0044] At step 204, a bandwidth of a primary carrier is set to a preset bandwidth, and a secondary carrier is activated, wherein a bandwidth of the secondary carrier is a variable bandwidth, and the bandwidth of the primary carrier and the bandwidth of the secondary carrier do not overlap.

[0045] For example, the preset bandwidth is 20M, and the variable bandwidth of the secondary carrier is xM. The primary carrier and the secondary carrier are as shown in FIG. 1. Figure 3

[0046] At step 205, first notification information is sent to the user terminal, so that the user terminal knows the change of the primary carrier.

[0047] For example, the first notification information is sent to the user terminal by using DCI (Downlink Control Information).

[0048] At step 206, in the NR-only region, the bandwidth resources of the primary carrier are scheduled based on the first MCS information, and the bandwidth resources of the secondary carrier are scheduled based on the second MCS information.

[0049] Figure 4 ​A flowchart of a carrier dynamic transformation method for an embodiment of the present disclosure is shown. In some embodiments, the carrier dynamic transformation method below is performed by a carrier dynamic transformation device in a DSS base station.

[0050] In step 401, a first CQI associated with an NR exclusive area and a second CQI associated with an NR and LTE mixed area reported by a user terminal are received.

[0051] In step 402, it is determined whether the user terminal is interfered by a neighbor area LTE CRS according to the first CQI and the second CQI.

[0052] In step 403, if the user terminal is not interfered by the neighbor area LTE CRS, a third MCS information is mapped using the first CQI and the second CQI.

[0053] In some embodiments, a weighted sum of the first CQI and the second CQI is first calculated, and then the third MCS information is mapped using the weighted sum.

[0054] For example, the weighted sum is AxCQI1+BxCQI2. Wherein A and B are weighted values, CQI1 is the first CQI, and CQI2 is the second CQI. For example, A and B take 0.5.

[0055] In step 404, the bandwidth of the primary carrier is set to a third preset bandwidth, and the secondary carrier is controlled to enter a dormant state. The third preset bandwidth is the sum of a preset bandwidth and a variable bandwidth, and the bandwidth of the primary carrier and the bandwidth of the secondary carrier have an overlap.

[0056] In some embodiments, the overlapping part of the bandwidth of the primary carrier and the bandwidth of the secondary carrier is the variable bandwidth.

[0057] For example, the preset bandwidth is 20M, and the variable bandwidth of the secondary carrier is xM. The primary carrier and the secondary carrier are as shown in Figure 5 .

[0058] In step 405, second notification information is sent to the user terminal so that the user terminal knows the change of the primary carrier.

[0059] For example, the second notification information is sent to the user terminal by using DCI.

[0060] In step 406, in the NR exclusive area, the bandwidth resources of the primary carrier are scheduled based on the third MCS information.

[0061] Figure 6 A structure diagram of a carrier dynamic transformation device for an embodiment of the present disclosure is shown. As shown in Figure 6 , the carrier dynamic transformation device includes a first processing module 61, a second processing module 62, a third processing module 63, and a fourth processing module 64.

[0062] The first processing module 61 is configured to receive a first CQI reported by the user terminal and associated with the NR exclusive area, and a second CQI associated with the NR and LTE mixed area.

[0063] The second processing module 62 is configured to determine whether the user terminal is interfered by the adjacent area LTE CRS according to the first CQI and the second CQI.

[0064] In some embodiments, the second processing module 62 determines whether an absolute value of a difference between the first CQI and the second CQI is greater than a preset interference threshold, and if the absolute value of the difference between the first CQI and the second CQI is greater than the preset interference threshold, it is determined that the user terminal is interfered by the adjacent area LTE CRS.

[0065] The second processing module 62 is configured to determine that the user terminal is not interfered by the adjacent area LTE CRS if the absolute value of the difference between the first CQI and the second CQI is not greater than the preset interference threshold.

[0066] The third processing module 63 is configured to map the first CQI to obtain first MCS information and map the second CQI to obtain second MCS information if the user terminal is interfered by the adjacent area LTE CRS.

[0067] The fourth processing module 64 is configured to set the bandwidth of the primary carrier to a preset bandwidth, activate the secondary carrier, wherein the bandwidth of the secondary carrier is a variable bandwidth, the bandwidth of the primary carrier and the bandwidth of the secondary carrier do not overlap, send first notification information to the user terminal so that the user terminal knows the change of the primary carrier, and schedule the bandwidth resources of the primary carrier based on the first MCS information and schedule the bandwidth resources of the secondary carrier based on the second MCS information in the NR exclusive area.

[0068] In some embodiments, the third processing module 63 is configured to map the first CQI and the second CQI to obtain third MCS information if the user terminal is not interfered by the adjacent area LTE CRS.

[0069] In some embodiments, the third processing module is configured to calculate a weighted sum of the first CQI and the second CQI, and map the weighted sum to obtain the third MCS information.

[0070] The fourth processing module 64 is configured to set the bandwidth of the primary carrier to a third preset bandwidth, control the secondary carrier to enter a dormant state, the third preset bandwidth is the sum of the preset bandwidth and the variable bandwidth, and the bandwidth of the primary carrier and the bandwidth of the secondary carrier overlap, send second notification information to the user terminal so that the user terminal knows the change of the primary carrier, and schedule the bandwidth resources of the primary carrier based on the third MCS information in the NR exclusive area.

[0071] In some embodiments, the overlapping part of the bandwidth of the primary carrier and the bandwidth of the secondary carrier is a variable bandwidth.

[0072] Figure 7 This is a schematic diagram of the structure of a carrier dynamic conversion device according to another embodiment of this disclosure. Figure 7 As shown, the carrier dynamic conversion device includes a memory 71 and a processor 72.

[0073] 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 2 or Figure 4 The method involved in any of the embodiments.

[0074] like Figure 7 As shown, the carrier dynamic conversion device also includes a communication interface 73 for information exchange with other devices. Simultaneously, the carrier dynamic conversion device also includes a bus 74, through which the processor 72, communication interface 73, and memory 71 communicate with each other.

[0075] 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.

[0076] 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.

[0077] This disclosure also relates to a computer-readable storage medium storing computer instructions that, when executed by a processor, implement as follows: Figure 2 or Figure 4 The method involved in any of the embodiments.

[0078] 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 a carrier dynamic conversion device 82. The carrier dynamic conversion device 82 is... Figure 6 or Figure 7 The carrier dynamic conversion device shown in any one of them.

[0079] By implementing the above-described scheme of this disclosure, the following beneficial effects can be achieved:

[0080] 1. This disclosure 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;

[0081] 2. The present disclosure greatly improves the reliability and completeness of the 40M DSS technical solution, shortens the network construction period, and reduces the construction and operation cost;

[0082] 3. Although the present disclosure uses different MCS levels for transmission, it is similar to the traditional CA, with less modification and low implementation complexity, making it easy to implement and promote the system.

[0083] In some embodiments, the functional units described above can be implemented as a general-purpose processor, a programmable logic controller (PLC), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof, for executing the functions described in the present disclosure.

[0084] Those of ordinary skill in the art can understand that all or part of the steps of the above-mentioned embodiments can be completed by hardware, or by program instructions instructing relevant hardware to complete, and the program can be stored in a computer readable storage medium, such as a read-only memory, a magnetic disk or an optical disk.

[0085] The description of the present disclosure is given for the purpose of illustration and description, and is not exhaustive or limiting to the present disclosure. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles and practical application of the present disclosure, and to enable those of ordinary skill in the art to understand the present disclosure in order to design various embodiments with various modifications for specific purposes.

Claims

1. A carrier dynamic conversion method, executed by a carrier dynamic conversion device, comprising: Receive the first CQI associated with the NR exclusive area and the second CQI associated with the NR and LTE mixed area reported by the user terminal; Based on the first CQI and the second CQI, determine whether the user terminal is subject to interference from neighboring LTE CRS. If the user terminal is interfered with by the neighboring cell LTE CRS, the first CQI is used to map out the first MCS information, and the second CQI is used to map out the second MCS information. The bandwidth of the primary carrier is set to a preset bandwidth, and the secondary carrier is activated, wherein the bandwidth of the secondary carrier is a variable bandwidth, and the bandwidths of the primary carrier and the secondary carrier do not overlap. Send a first notification message to the user terminal so that the user terminal can be aware of the changes in the primary carrier. In the NR exclusive zone, primary carrier bandwidth resources are scheduled based on the first MCS information, and secondary carrier bandwidth resources are scheduled based on the second MCS information.

2. The method according to claim 1, further comprising: If the user terminal is not interfered with by the neighboring cell LTE CRS, the third MCS information is mapped out using the first CQI and the second CQI; The bandwidth of the primary carrier is set to a third preset bandwidth, and the secondary carrier is controlled to enter a sleep state. The third preset bandwidth is the sum of the preset bandwidth and the variable bandwidth, and the bandwidth of the primary carrier and the bandwidth of the secondary carrier overlap. Send a second notification message to the user terminal so that the user terminal can be informed of the main carrier change; In the NR exclusive zone, primary carrier bandwidth resources are scheduled based on the third MCS information.

3. The method according to claim 2, wherein, The overlapping portion of the bandwidth of the primary carrier and the bandwidth of the secondary carrier constitutes the variable bandwidth.

4. The method according to claim 2, wherein, Mapping the third MCS information using the first CQI and the second CQI includes: Calculate the weighted sum of the first CQI and the second CQI; The third MCS information is obtained by using the weighted sum.

5. The method according to any one of claims 1-4, wherein, Determining whether the user terminal is subject to neighboring cell LTE CRS interference based on the first CQI and the second CQI includes: Determine whether the absolute value of the difference between the first CQI and the second CQI is greater than a preset interference threshold; If the absolute value of the difference between the first CQI and the second CQI is greater than a preset interference threshold, then it is determined that the user terminal is subject to interference from neighboring cell LTE CRS.

6. The method according to claim 5, further comprising: If the absolute value of the difference between the first CQI and the second CQI is not greater than a preset interference threshold, then it is determined that the user terminal is not subject to interference from neighboring LTE CRS.

7. A carrier dynamic conversion device, comprising: The first processing module is configured to receive a first CQI associated with the NR exclusive area and a second CQI associated with the NR and LTE mixed area reported by the user terminal. The second processing module is configured to determine whether the user terminal is subject to neighboring cell LTE CRS interference based on the first CQI and the second CQI. The third processing module is configured to, if the user terminal is interfered with by neighboring cell LTE CRS, use the first CQI to map out the first MCS information and use the second CQI to map out the second MCS information. The fourth processing module is configured to set the bandwidth of the primary carrier to a preset bandwidth and activate the secondary carrier, wherein the bandwidth of the secondary carrier is a variable bandwidth and the bandwidths of the primary carrier and the secondary carrier do not overlap; send a first notification message to the user terminal so that the user terminal can be aware of the changes in the primary carrier; and in the NR exclusive area, schedule the primary carrier bandwidth resources based on the first MCS information and schedule the secondary carrier bandwidth resources based on the second MCS information.

8. The apparatus according to claim 7, wherein, The third processing module is configured to map out the third MCS information using the first CQI and the second CQI if the user terminal is not interfered with by the neighboring cell LTE CRS. The fourth processing module is configured to set the bandwidth of the primary carrier to a third preset bandwidth and control the secondary carrier to enter a sleep state. The third preset bandwidth is the sum of the preset bandwidth and the variable bandwidth, and the bandwidth of the primary carrier and the bandwidth of the secondary carrier overlap. The module sends a second notification message to the user terminal so that the user terminal can be aware of the changes in the primary carrier. In the NR exclusive area, the primary carrier bandwidth resources are scheduled based on the third MCS information.

9. The apparatus according to claim 8, wherein, The overlapping portion of the bandwidth of the primary carrier and the bandwidth of the secondary carrier constitutes the variable bandwidth.

10. The apparatus according to claim 8, wherein, The third processing module is configured to calculate a weighted sum of the first CQI and the second CQI, and use the weighted sum to map out the third MCS information.

11. The apparatus according to any one of claims 7-10, wherein, The second processing module is configured to determine whether the absolute value of the difference between the first CQI and the second CQI is greater than a preset interference threshold. If the absolute value of the difference between the first CQI and the second CQI is greater than the preset interference threshold, then it is determined that the user terminal is subject to interference from neighboring cell LTE CRS.

12. The apparatus according to claim 11, wherein, The second processing module is configured to determine that the user terminal is not subject to interference from neighboring cell LTE CRS if the absolute value of the difference between the first CQI and the second CQI is not greater than a preset interference threshold.

13. A carrier dynamic conversion 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 1-6 based on memory-stored instruction execution.

14. A DSS base station, comprising a carrier dynamic switching device as described in any one of claims 7-13.

15. 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 1-6.

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