Cell network interference coordination method

Abstract

The present application discloses a cell network interference coordination method. A target cell comprises a first network and a second network, and the method comprises: acquiring a target allocation quantity from the second network to the first network of the target cell in a preset period, and a second network allocation quantity of each neighbor cell of the target cell in the preset period; if the second network allocation quantity of any neighbor cell among the neighbor cells is smaller than the target allocation quantity, taking the neighbor cell as an interference cell; determining effective resources of an overlapping area of the target cell and the interference cell; and allocating the effective resources to a first network user in the overlapping area of the target cell and the interference cell.

Description

Cell network interference coordination method

[0001] Related applications

[0002] This application claims priority to Chinese patent application No. 202311654020.6 filed on November 30, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of network interference technology, and in particular to a cell network interference coordination method. Background Art

[0004] In the field of mobile wireless networks, with the widespread adoption of various smart devices and the rapid growth of data services, efficient spectrum utilization has become a research focus. To meet the growing data demand and improve network performance, a series of emerging technologies are emerging. Among them, intelligent dynamic spectrum sharing technologies, such as Dynamic Spectrum Sharing (DSS) orchestration, are attracting considerable attention and are considered a promising solution.

[0005] DSS orchestration technology is designed to optimize the deployment of wireless access network services within a cell using a single spectrum. Through DSS orchestration, cells can flexibly and dynamically switch between multiple standards (such as 3G, 4G, and 5G), supporting the simultaneous deployment of multiple wireless access network services or providing services solely on a single standard. This means that based on the real-time load ratio of users in each standard, the cell can dynamically adjust its state to adapt to the changing demand for services across different standards.

[0006] However, since the proportion of different-standard services between different cells may vary significantly, when intelligent dynamic spectrum sharing technology is enabled, the cell states between adjacent cells may not be aligned, resulting in the network signals of lower-capacity cells (such as 4G) with adjacent frequencies causing serious interference to the higher-capacity network signals (such as 5G) in this area.

[0007] Summary of the Invention

[0008] The present application provides a cell network interference coordination method, which can improve the interference of neighboring cells to the target cell.

[0009] The present application provides a cell network interference coordination method, the method comprising the following steps: obtaining a target allocation number of a second sub-area second network to a first sub-area first network of a target spectrum sharing cell target cell in a preset period; and a second network allocation number of each adjacent cell neighboring area of ​​the target spectrum sharing cell target cell in the preset period; if the second network allocation number of any adjacent cell neighboring area among each adjacent cell neighboring area is less than the target allocation number, the adjacent cell neighboring area is regarded as an interfering cell; determining effective resources in an overlapping area between the target spectrum sharing cell target cell and the interfering cell; and allocating effective resources to a first network user in the target spectrum sharing cell target cell in an overlapping area with the interfering cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts. Among them:

[0011] FIG1 is a flow chart of a first embodiment of a cell network interference coordination method provided by the present application;

[0012] FIG2 is a flow chart of a 4G and 5G spectrum sharing system;

[0013] Figure 3 is a structural diagram of the cell distribution and mutual coverage relationship in scenario 1;

[0014] FIG4 is another structural diagram of the cell distribution and mutual coverage relationship in scenario 1;

[0015] Figure 5 is a structural diagram of the cell distribution and mutual coverage relationship in scenario 2;

[0016] FIG6 is another structural diagram of the cell distribution and mutual coverage relationship in scenario 2;

[0017] FIG7 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

[0018] FIG8 is a schematic structural diagram of an embodiment of a computer-readable storage medium provided in the present application. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. In addition, for ease of description, only some, rather than all, structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts are within the scope of protection of this application.

[0020] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] In the field of mobile wireless networks, with the widespread adoption of various smart devices and the rapid growth of data services, efficient spectrum utilization has become a research focus. To meet the growing data demand and improve network performance, a series of emerging technologies are emerging. Among them, intelligent dynamic spectrum sharing technologies, such as Dynamic Spectrum Sharing (DSS) orchestration, are attracting considerable attention and are considered a promising solution.

[0022] DSS orchestration technology is designed to optimize the deployment of wireless access network services within a cell using a single spectrum. Through DSS orchestration, cells can flexibly and dynamically switch between multiple standards (such as 3G, 4G, and 5G), supporting the simultaneous deployment of multiple wireless access network services or providing services solely on a single standard. This means that based on the real-time load ratio of users in each standard, the cell can dynamically adjust its state to adapt to the changing demand for services across different standards.

[0023] However, since the proportion of different-standard services between different cells may vary significantly, when intelligent dynamic spectrum sharing technology is enabled, the cell states between adjacent cells may not be aligned, resulting in the network signals of lower-capacity cells (such as 4G) with adjacent frequencies causing serious interference to the higher-capacity network signals (such as 5G) in this area.

[0024] Therefore, in order to solve the technical problem in the prior art that after the intelligent dynamic spectrum sharing technology is enabled, the network signals of the adjacent lower-capacity cells on the same frequency (such as 4G) cause serious interference to the higher-capacity network signals (such as 5G) in the local area, the present application provides a cell network interference coordination method. Please refer to the following embodiments for details.

[0025] First, some professional terms involved in this application are explained.

[0026] MBSFN (Multicast Broadcast Single Frequency Network): Multicast / multicast single frequency network.

[0027] CRS Muting (Cell-specific Reference Signal Muting): significantly reduces the 4G CRS signal transmission power of the specified RB.

[0028] CSI-IM: Channel State Information-Interference Measurement (CSI-IM) is a technology used to measure interference with wireless signals.

[0029] NR (New Radio): New wireless, namely 5G.

[0030] LTE (Long Term Evolution): Long Term Evolution, also known as 4G.

[0031] CRS (Cell Reference Signal): cell reference signal.

[0032] DSS (Dynamic Spectrum Sharing): dynamic spectrum sharing.

[0033] PDSCH (Physical Downlink Shared Channel): Physical downlink shared channel.

[0034] PRB (Physical Resource Block): physical resource block, which is referred to as RB in the embodiment of the present application.

[0035] The following is a detailed introduction to the cell network interference coordination method provided by this application. Specifically, please refer to FIG1 , which is a flow chart of a first embodiment of the cell network interference coordination method provided by this application. The method includes the following steps.

[0036] Step 110: Obtain the target allocation number of the target cell from the second network to the first network in the preset period; and the second network allocation number of each neighboring cell of the target cell in the preset period.

[0037] The target cell is a Dynamic Spectrum Sharing (DSS) cell. For ease of presentation, the embodiments of this application refer to the Dynamic Spectrum Sharing cell as a DSS cell. The target cell includes a first network and a second network. The first network can be 3G, 4G, 5G, etc., and the second network can also be 3G, 4G, 5G, etc. It should be noted that the capacity of the first network is greater than the capacity of the second network. For example, if the first network is 5G, the second network is 4G; or if the first network is 4G, the second network is 3G.

[0038] In addition, the target cell may be divided into different areas according to the network used, for example, an area using the first network is a first network area, and an area using the second network is a second network area.

[0039] Neighboring cells may include dynamic spectrum sharing cells and / or single network cells.

[0040] For example, the target cell is DSS cell 1, the neighboring cell is DSS cell 2, or the single network cell 1 and the single network cell 2. Or the target cell is DSS cell 1, and the neighboring cell is DSS cell 2.

[0041] In some embodiments, the preset period can be the next period, that is, the next time period after the current period. The specific time length can be set according to actual conditions. The embodiment of the present application is explained by taking the preset period as the next period as an example.

[0042] In addition, the target allocation number is the number of allocations that the second network can give to the first network in the target cell during the preset period. For example, if the total number of second network configurations in the target cell during the preset period is 10 and the total number of second network configurations that the target cell expects in the preset period is 3, then the number of allocations that the second network can give to the first network in the target cell during the preset period is 7. That is, the target allocation number is related to the total number of second network configurations in the target cell and the total number of second network configurations that the target cell expects.

[0043] Likewise, the second network allocation number is calculated in the same manner as the target allocation number.

[0044] In some embodiments, the target allocation number may be sent and received via broadcast or other wireless transmission methods. Specifically, after determining that the expected bandwidth of the target cell in the next cycle is greater than 0, the target cell may send mandatory and / or non-mandatory broadcast information of the expected bandwidth to each neighboring cell; and receive, within a preset time, the second network allocation number corresponding to each neighboring cell, which is determined and fed back based on the broadcast information.

[0045] The target cell can attach a "mandatory" or "non-mandatory" tag to the broadcast information it sends. The "mandatory" tag requires unconditional cooperation from neighboring cells. The "non-mandatory" tag is generally recommended, while the "mandatory" tag can be used in special circumstances. Similarly, if the target cell's neighbor is a dynamic spectrum sharing cell, if the neighbor's expected bandwidth for the next cycle is greater than 0, the target cell will also send broadcast information to its corresponding neighboring cells.

[0046] In some embodiments, the target allocation number of the target cell in the preset period can be determined by obtaining the maximum bandwidth and expected bandwidth of the target cell in the preset period, as well as the expected bandwidth of the neighboring cell in the preset period; based on the maximum bandwidth and expected bandwidth of the target cell in the preset period, as well as the expected bandwidth of the neighboring cell in the preset period.

[0047] The maximum bandwidth transferred by the target cell refers to the maximum bandwidth that the second network cell can tolerate and transfer to the first network user for use.

[0048] The maximum yielded bandwidth of the target cell in the next cycle can be obtained in the following ways.

[0049] (1) Obtain the configured bandwidth of the second network of the target cell and the expected bandwidth of the second network user in the next period.

[0050] (2) Based on the difference between the configured bandwidth of the second network and the expected bandwidth of the second network user in the next period, the maximum yielded bandwidth of the target cell in the next period is obtained.

[0051] For details, please refer to Formula 1: max(configured bandwidth of the second network - expected bandwidth of the second network user in the next cycle, 0)----Formula 1.

[0052] For example, the configured bandwidth of the second network is 10M, and the expected bandwidth of the second network user in the next cycle is 6M. The difference between the configured bandwidth of the second network and the expected bandwidth of the second network user in the next cycle is 4M, and the maximum yielded bandwidth = max(4M, 0) = 4M.

[0053] Based on the obtained maximum yielded bandwidth, you can further determine the expected yielded bandwidth. For details, refer to the following process:

[0054] 1) Obtaining the expected bandwidth of the first network user in the next period and the first network exclusive bandwidth.

[0055] 2) Determine the difference between the first network user's expected bandwidth in the next period and the first network's exclusive bandwidth.

[0056] 3) Based on the difference between the expected bandwidth of the first network user in the next cycle and the exclusive bandwidth of the first network, and the maximum yielded bandwidth of the target cell in the next cycle, the expected yielded bandwidth of the target cell in the next cycle is obtained.

[0057] For process 1)-3), you can refer to the following formula 2:

[0058] min(max(expected bandwidth of users on the first network in the next cycle - exclusive bandwidth of the first network, 0), max(configured bandwidth of the second network - expected bandwidth of users on the second network in the next cycle, 0))----Formula 2.

[0059] Here, max(configured bandwidth of the second network - expected bandwidth of the second network user in the next cycle, 0) is the calculation formula for the maximum yielded bandwidth.

[0060] For example, the expected bandwidth of the first network user in the next cycle is 7M, the exclusive bandwidth of the first network is 3M, and the maximum transfer bandwidth is 4M calculated above. Then the expected transfer bandwidth = min(max(7M-5M,0),4M) = 2M.

[0061] In some embodiments, after obtaining the transferred bandwidth, the corresponding bandwidth needs to be converted into the number of subframes corresponding to a specific preset service and the number of target resources corresponding to a preset reference signal. The specific conversion process can be referred to as follows.

[0062] First: the interference coordination system only supports preset service configuration, then the maximum yielded bandwidth and expected yielded bandwidth of the target cell in the next period are converted into the maximum number of subframes and expected number of subframes corresponding to the preset service of the target cell, respectively; and the expected yielded bandwidth of the neighboring cell in the next period is converted into the expected number of subframes corresponding to the preset service of the neighboring cell; based on the maximum number of subframes and expected number of subframes corresponding to the preset service of the target cell, and the expected number of subframes corresponding to the preset service of the neighboring cell, the target number of allocated subframes corresponding to the preset service of the target cell is determined.

[0063] Among them, since the MBSFN subframe is a special subframe used for multicast / broadcast single frequency network transmission, it can eliminate the interference caused by the CRS of the adjacent 4G in the same frequency to the 5G PDSCH in this area, while retaining the ability of 4G and 5G to dynamically share the same spectrum resources. Therefore, the preset service configuration can be a multicast / groupcast single frequency network (Multicast Broadcast Single Frequency Network, MBSFN) configuration. For the convenience of presentation, the embodiment of this application refers to it as MBSFN configuration.

[0064] In addition, MBSFN is usually configured as an integer number of subframes in the entire spectrum, so the above bandwidth can be converted into the sum of the number of MBSFN subframes and then rounded down.

[0065] For example, 10M bandwidth can be roughly converted into 5 MBSFN subframes.

[0066] In some embodiments, the determination of the target number of allocated subframes for the preset service may specifically be: selecting the larger one from the expected number of subframes of the target cell in the next cycle and the expected number of subframes of the neighboring cell in the next cycle as the target expected number of subframes; selecting the smaller one from the target expected number of subframes and the maximum number of subframes of the target cell in the next cycle as the target number of allocated subframes corresponding to the preset service of the target cell in the next cycle.

[0067] The specific calculation of the target allocated subframe number can refer to Formula 3:

[0068] max(min(maximum number of subframes of the target cell in the next cycle, max(expected number of subframes of the target cell in the next cycle, expected number of subframes of the neighboring cell in the next cycle)))------Formula 3.

[0069] For example, the expected number of subframes of the target cell in the next cycle is 2, the expected number of subframes of the neighboring cell in the next cycle is 3, and the maximum number of subframes of the target cell is 4. Then, the target number of allocated subframes = max(min(maximum number of subframes of the target cell in the next cycle, max(expected number of subframes of the target cell in the next cycle, max(expected number of subframes of the neighboring cell in the next cycle)))) = max(min(4, max(2, max(3)))) = 3 MBSFN subframes.

[0070] Second: If the interference coordination system only supports the preset reference signal configuration, the maximum yielded bandwidth and expected yielded bandwidth of the target cell in the next period are converted into the maximum number of resources and expected number of resources corresponding to the preset reference signal of the target cell, respectively; and the expected yielded bandwidth of the neighboring cell in the next period is converted into the expected number of resources corresponding to the preset reference signal of the neighboring cell; based on the maximum number of resources and expected number of resources corresponding to the preset reference signal of the target cell, and the expected number of resources corresponding to the preset reference signal of the neighboring cell, the target number of resources for the preset reference signal of the target cell is determined.

[0071] Since the CRSMuting technology can eliminate signal interference, the preset reference signal can be a cell reference signal, namely a CRS signal, and the preset reference signal configuration can be a CRS configuration.

[0072] The bandwidth may be converted into the number of resources of the preset reference signal in a ratio of 3, 4 or 5 times, with a conversion ratio of 5 times being preferred.

[0073] For example, if the maximum yielded bandwidth of the target cell in the next cycle is 7M, then the maximum number of resources corresponding to the preset reference signal of the target cell is 35M; if the expected yielded bandwidth of the target cell in the next cycle is 3M, then the expected number of resources corresponding to the preset reference signal of the target cell is 15M.

[0074] Likewise, the expected number of resources corresponding to the preset reference signal of the neighboring cell may be converted in the same ratio as that of the target cell.

[0075] The target number of preset reference signal resources of the target cell in the next period can be referred to Formula 4:

[0076] max(min(maximum number of resources corresponding to the preset reference signal of the target cell in the next period, max(expected number of resources of the target cell in the next period, max(expected number of resources of the neighboring cell in the next period))))------Formula 4.

[0077] For example, the expected number of resources of the target cell in the next cycle is 15, the expected number of resources of the neighboring cell in the next cycle is 0, and the maximum number of resources of the target cell is 40, then the target number of resources = max(min(40, max(15, max(0)))) = 15 RBs.

[0078] Third: If the interference coordination system supports both preset service configuration and preset reference signal configuration, the maximum yielded bandwidth and expected yielded bandwidth of the target cell in the next period are converted into the number of subframes corresponding to the preset service and rounded down to obtain the remaining maximum yielded bandwidth and expected yielded bandwidth; the remaining maximum yielded bandwidth and expected yielded bandwidth are further converted into the number of resources corresponding to the preset reference signal. In the same network, the allocation methods of the preset service configuration and the preset reference signal configuration are integrated.

[0079] For example, the target cell's expected bandwidth for the next cycle is 14M. Calculated based on 10M bandwidth, which can be roughly converted into 5 MBSFN subframes, the remaining expected bandwidth is 4M. The remaining expected bandwidth of 4M can be converted into the number of resources corresponding to the preset reference signal (e.g., 20RB).

[0080] This embodiment first converts the target cell's maximum yielded bandwidth and expected yielded bandwidth into the number of subframes corresponding to the pre-defined service. This ensures that sufficient bandwidth is allocated to the pre-defined service within limited wireless resources, ensuring that the pre-defined service is prioritized and processed, thereby guaranteeing its service quality. The remaining maximum yielded bandwidth and expected yielded bandwidth are then converted into the number of resources corresponding to the pre-defined reference signal, ensuring the stability and accuracy of the reference signal, thereby guaranteeing overall network performance and further improving resource utilization.

[0081] In addition, since the allocation methods of preset service configuration and preset reference signal configuration are integrated in the same network, for example, the MBSFN configuration and CRSMuting configuration between adjacent co-frequency cells are aligned, the interference caused by the preset reference signal of the neighboring cell can be completely eliminated.

[0082] Step 120: If the second network allocation number of any neighboring cell among the neighboring cells is less than the target allocation number, the neighboring cell is regarded as an interfering cell.

[0083] When the secondary network allocation number of a neighboring cell is less than the target allocation number, it means that the neighboring cell has relatively few wireless resources allocated to it, which may lead to insufficient resource utilization and thus cause strong interference to the target cell. For example, the interfering cell may use a higher transmit power due to limited resources, resulting in increased interference; or improper resource allocation may lead to low transmission efficiency, affecting network performance.

[0084] By identifying neighboring cells as interfering cells, appropriate interference coordination and management measures can be implemented to reduce the impact of interfering cells on the target cell. For example, the target cell's resource allocation strategy can be adjusted to avoid or mitigate interference from interfering cells, thereby improving the target cell's performance and ensuring communication quality for users in the target cell and overall network performance.

[0085] Step 130: Determine the effective resources in the overlapping area between the target cell and the interfering cell.

[0086] Among them, the interference resources of the interfering cell to the target cell can be obtained based on the second network allocation number of the interfering cell and the total number of second network configurations of the interfering cell; the interference resources are filtered out from the configured bandwidth of the second network of the target cell to obtain the effective resources in the overlapping area of ​​the target cell and the interfering cell.

[0087] Step 140: Allocate effective resources to the first network user in the target cell in the overlapping area with the interfering cell.

[0088] For steps 130-140, for example, the second network allocation number of the interfering cell is 4M, the total number of the second network configurations of the interfering cell is 20M, and the total number of the second network configurations of the target cell is 22M. The interference resources of the interfering cell to the target cell are 16M, and the effective resources in the overlapping area between the target cell and the interfering cell are 22M-16M=6M.

[0089] Then, required resources may be selected from the effective resources 6M and allocated to the first network user in the target cell in the overlapping area with the interfering cell.

[0090] This embodiment can clearly understand the spectrum allocation situation of each cell by obtaining the target allocation number of the second network to the first network in the target cell, as well as the second network allocation number of the neighboring cell. When it is identified that the second network allocation number of any neighboring cell is less than the target allocation number, the corresponding neighboring cell is marked as an interfering cell, and the area of ​​the target cell affected by strong interference is specifically identified. By further determining the effective resources in the overlapping area of ​​the target cell and the interfering cell, when allocating resources to the first network user in the target cell, for the first network user in the strongly interfered area, i.e., the overlapping area, it can be selected from the effective resources. That is, it avoids the resources affected by the interfering cell, thereby effectively improving the serious interference problem caused by the difference in service ratios between cells and the misalignment of states after the intelligent dynamic spectrum sharing technology is enabled in related technologies.

[0091] In other embodiments, since the area of ​​the target cell far away from the interfering cell (i.e., the area that does not overlap with the interfering cell) is less affected by the interfering cell or even not affected at all, the interference resources can be allocated to the area far away from the interfering cell so that all allocated resources can be used as much as possible, thereby improving the utilization rate of resources on the target cell.

[0092] Specifically, interference resources and / or effective resources may be allocated to the first network user in the target cell in an area that does not overlap with the interference cell.

[0093] For example, required resources may be selected from the effective resources 6M and / or the interference resources 16M for allocation to the first network user in the target cell that is not overlapped with the interference cell.

[0094] This embodiment identifies the interfering cell and distinguishes the areas on the target dynamic spectrum sharing cell that overlap and do not overlap with the interfering cell, that is, the interfered area and the non-interfered area, and selectively selects and allocates different resources to different areas, thereby flexibly allocating resources and improving the utilization of resources on the target cell.

[0095] In conjunction with the above embodiments, this application uses the application scenario of 4G and 5G spectrum sharing as an example for explanation, see Figures 2-6. Figure 2 is a schematic flow chart of the 4G and 5G spectrum sharing system; Figures 3 and 4 are cell distribution and mutual coverage relationship diagrams for scenario one. Figures 5 and 6 are cell distribution and mutual coverage relationship diagrams for scenario two.

[0096] Scenario 1: Assume that the interference coordination system only supports CRSMuting configuration and does not allow MBSFN configuration.

[0097] S1: The dynamic spectrum sharing cell obtains its neighboring cell list information based on the statistical data reported by the user.

[0098] As shown in FIG3 , the dynamic spectrum sharing cells include 15MDSS cell 1 and 15MDSS cell 2 , that is, 15MDSS cell 1 and 15MDSS cell 2 can be used as target cells.

[0099] Among them, the neighboring cell list of 4GDSS cell 1 (belonging to 15MDSS cell 1) is: 4GDSS cell 2 (belonging to 15MDSS cell 2) and 10M4G cell 2.

[0100] The neighboring cell list of 4GDSS cell 2 (belonging to 15MDSS cell 2) is: 4GDSS cell 1 (belonging to 15MDSS cell 1), 10M4G cell 1, and 10M4G cell 2.

[0101] Among them, the neighboring cells in the neighboring cell list refer to high-interference co-frequency neighboring cells.

[0102] S2: All cells predict their own 4G and 5G loads respectively.

[0103] As shown in Figure 3, 15MDSS cell 1 and 15MDSS cell 2 are dynamic spectrum sharing cells. 15MDSS cell 1 includes 4GDSS cell 1 and 5GDSS cell 1, 15MDSS cell 2 includes 4GDSS cell 2 and 5GDSS cell 2, while 10M4G cell 1 and 10M4G cell 2 are single network cells.

[0104] Assume that the bandwidth requirements of 4G and 5G users in all cells in the next cycle are as shown in Figure 3.

[0105] Among them, the bandwidth requirement is the expected bandwidth. The requirement of 4GDSS cell 1 is 3M bandwidth; the requirement of 5GDSS cell 1 is 2M bandwidth; the requirement of 4GDSS cell 2 is 4M bandwidth; the requirement of 5GDSS cell 2 is 8M bandwidth; the requirement of 10M4G cell 1 is 4M bandwidth; the requirement of 10M4G cell 2 is 2M bandwidth.

[0106] S3: Calculate the maximum bandwidth and expected bandwidth to be transferred by the 4G cell in the next cycle, and broadcast them to its neighboring cells through the Xn port.

[0107] As shown in FIG3 , the 4G cells include 4GDSS cell 1, 4GDSS cell 2, 10M4G cell 1, and 10M4G cell 2.

[0108] The maximum bandwidth and expected bandwidth of the 4G cell in the next cycle can be further converted into the corresponding number of CRSMuting resources and then broadcast to its neighboring cells through the Xn port.

[0109] The maximum transfer bandwidth refers to the maximum bandwidth that a 4G cell can tolerate and transfer to 5GDSS users.

[0110] As shown in Figures 3 and 4, 10MLTE indicates that the 4G configured bandwidth is 10M, 15M5G indicates that the 5G configured bandwidth is 15M, NR demand indicates that the expected bandwidth of 5G users in the next cycle is 2M, and LTE demand indicates the expected bandwidth of 4G users in the next cycle.

[0111] Based on the above maximum yielded bandwidth calculation formula 1: max(4G configured bandwidth - 4G user's expected bandwidth for the next cycle, 0), the maximum yielded bandwidth for each cell in the next cycle can be calculated as follows:

[0112] Therefore, the maximum bandwidth to be transferred by 4GDSS cell 1 in 15MDSS cell 1 in the next cycle is max(10-3,0)=7M bandwidth, which is about 35RB.

[0113] The maximum bandwidth granted by 4GDSS cell 2 in 15MDSS cell 2 in the next cycle is max(10-4,0)=6M bandwidth, which is about 30RB.

[0114] The maximum bandwidth to be transferred in the next cycle of 10M4G cell 1 is max(10-4,0)=6M bandwidth, which is about 30RB.

[0115] The maximum bandwidth to be transferred in the next cycle of 10M 4G cell 2 is max(10-2,0)=8M bandwidth, which is about 40RB.

[0116] In the 4G and 5G dynamic spectrum sharing scenario, the expected yielded bandwidth refers to the bandwidth that 5GDSS expects to obtain from 4G or 4GDSS cells. Since 4G cells in a single network (such as 10M4G cell 1 and 10M4G cell 2) do not include 5G, only the dynamic spectrum sharing cells (such as 15M DSS cell 1 and 15M DSS cell 2) need to be considered when calculating the expected yielded bandwidth.

[0117] Based on the above-calculated maximum yielded bandwidth corresponding to the 4GDSS cell in the dynamic spectrum sharing cell in the next cycle, and the calculation formula for the expected yielded bandwidth in the next cycle, min(max(5G user's expected bandwidth in the next cycle - 5G exclusive bandwidth, 0), max(4G configured bandwidth - 4G user's expected bandwidth in the next cycle, 0)), the expected yielded bandwidth of the 4GDSS cell in the dynamic spectrum sharing cell in the next cycle can be calculated as follows.

[0118] As shown in Figure 3 and Figure 4, the 5G configuration bandwidth of 5MDSS cell 1 and 5MDSS cell 2 is both 15M, and the 4G configuration bandwidth is both 10M. Therefore, the 5G exclusive bandwidth of 5MDSS cell 1 and 5MDSS cell 2 is both 5G.

[0119] Then the expected transfer bandwidth expected by 4GDSS cell 1 (belonging to 15MDSS cell 1) in the next cycle = min(max(2-5,0),max(10-3,0)) = 0M bandwidth, and the corresponding expected CRSMuting resource number is also 0.

[0120] The expected bandwidth to be transferred in the next cycle of 4GDSS cell 2 (belonging to 15MDSS cell 2) is min(max(8-5,0),max(10-4,0))=3M bandwidth, and the expected number of CRSMuting resources is about 15RB.

[0121] Since 4GDSS cell 1 expects 0 CRSMuting resources in the next cycle, it does not need to broadcast its requirements in this cycle. 4GDSS cell 2 (belonging to 15MDSS cell 2) expects 15 RBs in the next cycle, which is greater than 0. Therefore, it needs to send a broadcast message, such as "Expected to configure 15 RBs, optional," to all its neighboring cells: 4GDSS cell 1 (belonging to 15MDSS cell 1), 10M4G cell 1, and 10M4G cell 2.

[0122] S4: The 4G or 4GDSS cell receives the broadcast message from the neighboring cell within the specified time window, and then decides and executes the configuration of the cell in the next cycle.

[0123] The configuration of the next cycle is the CRSMuting configuration, which is to calculate the target number of resources for the preset reference signal. For details, please refer to Formula 5:

[0124] max(min(the maximum number of CRSMuting resources that this area can tolerate in the next cycle, max(the expected number of CRSMuting resources in this area in the next cycle, max(the expected number of CRSMuting resources received from the neighboring area "non-mandatory" in the next cycle))), max(the expected number of CRSMuting resources received from the neighboring area "mandatory" in the next cycle))---Formula 5.

[0125] The maximum tolerable number of CRSMuting resources is the maximum number of resources corresponding to the preset reference signal mentioned above, and the expected number of CRSMuting resources is the expected number of resources of the preset reference signal.

[0126] From the results calculated in the above steps, it can be seen that the expected number of CRSMuting resources of 4GDSS cell 1 in the next cycle is 0, and the expected number of CRSMuting resources of 4GDSS cell 2 (belonging to 15MDSS cell 2) in the next cycle is 15RB.

[0127] Among them, if the target resource number of CRSMuting of 4GDSS cell 1 (belonging to 15MDSS cell 1) is calculated, the current area is 4GDSS cell 1, and the neighboring areas are 4GDSS cell 2 (belonging to 15MDSS cell 2) and 10M4G cell 2.

[0128] As shown in Figure 4, the LTE demand (i.e., the 4G expected bandwidth in the next cycle) of 4GDSS cell 1 (belonging to 15MDSS cell 1) is 3M, and the 4G configured bandwidth is 10M. Therefore, the maximum yielded bandwidth of 4GDSS cell 1 in the next cycle is 7M, which is approximately 35RB. Therefore, the target resource number of CRSMuting of 4GDSS cell 1 (belonging to 15MDSS cell 1) = max(min(35, max(0, max(15))), max(0)) = 15RB.

[0129] If the target resource number of CRSMuting of 4GDSS cell 2 (belonging to 15MDSS cell 2) is calculated, the current area is 4GDSS cell 2, and the neighboring areas are 4GDSS cell 1 (belonging to 15MDSS cell 1), 10M4G cell 1, and 10M4G cell 2.

[0130] As shown in Figure 4, the LTE demand (i.e., the expected 4G bandwidth for the next cycle) of 4GDSS cell 2 (belonging to 15MDSS cell 2) is 4 Mbps, and the configured 4G bandwidth is 10 Mbps. Therefore, the maximum yielded bandwidth for 4GDSS cell 2 in the next cycle is 6 Mbps, or approximately 30 RBs. Therefore, the target number of CRSMuting resources for 4GDSS cell 2 (belonging to 15MDSS cell 2) = max(min(30, max(15, max(0))), max(0)) = 15 RBs.

[0131] Similarly, it can be obtained that the CRSMuting target resource number of 10M4G cell 1 = max(min(30, max(0, max(15))), max(0)) = 15 RBs.

[0132] The CRSMuting target resource number of 10M4G cell 2 = max(min(40, max(0, max(15))), max(0)) = 15 RBs.

[0133] The calculated target number of resources for CRSMuting is the target number of resources for the preset reference signal.

[0134] After the calculation is completed, the above-mentioned cell performs the CRSMuting operation according to the above calculation results in the next cycle. It should be noted that the 15 RBs required for CRSMuting here are the RBs close to the 5G exclusive spectrum, and are aligned across the entire network.

[0135] S5: 5GDSS or 5G cells implement automated interference avoidance measures.

[0136] As shown in Figure 4, all 4G and 4GDSS cells are configured with CRSMuting of 15 RBs. That is, the target number of RBs allocated by the second network to the first network in the next cycle for the target cell 15MDSS cell 2 is 15. The second network allocation number of the neighboring cells of 4GDSS cell 2: 15MDSS cell 1, 10M4G cell 1 and 10M4G cell 2 in the next cycle is also 15 RBs. Therefore, all 5G users in the target cell 15MDSS cell 2 will most likely not find strong interference on these 15 RBs. All 5G users in 15MDSS cell 2 can enjoy a clean spectrum of approximately 8M bandwidth, fully meeting their needs.

[0137] In the above scenario 1, the target cell is not subject to interference from neighboring cells. Therefore, 5G users at all locations in target cell 15M DSS cell 2 can enjoy approximately 8 Mbps of clean spectrum. However, if the calculated second network allocation number for any neighboring cell is less than the target allocation number, it is necessary to identify the interfering cell and distinguish the locations of 5G users in the target cell. For details, please refer to scenario 2.

[0138] Scenario 2: Assume that the interference coordination system only supports MBSFN configuration and does not allow CRSMuting configuration.

[0139] S1: The dynamic spectrum sharing cell obtains its neighboring cell list information based on the statistical data reported by the user.

[0140] As shown in FIG5 , the neighboring cell list of 4GDSS cell 1 (belonging to 20MDSS cell 1) is: 4GDSS cell 2 (belonging to 20MDSS cell 2), that is, 20MDSS cell 1 and 20MDSS cell 2 can be used as target cells.

[0141] The neighboring cell list of 4GDSS cell 2 (belonging to 20MDSS cell 2) is: 4GDSS cell 1 (belonging to 20MDSS cell 1), 20M4G cell 1.

[0142] Among them, the neighboring cells in the neighboring cell list refer to high-interference co-frequency neighboring cells.

[0143] S2: All cells predict their own 4G and 5G loads respectively.

[0144] Assume that the bandwidth requirements of 4G and 5G users in all cells for the next cycle are as shown in Figure 6:

[0145] Then 4GDSS cell 1 (belonging to 20MDSS cell 1): 10M bandwidth.

[0146] 5GDSS cell 1 (belonging to 20MDSS cell 1): 6M bandwidth.

[0147] 4GDSS cell 2 (belonging to 20MDSS cell 2): ​​12M bandwidth.

[0148] 5GDSS cell 2 (belonging to 20MDSS cell 2): ​​4M bandwidth.

[0149] 20M4G cell 1: 18M bandwidth.

[0150] S3: Calculate the maximum bandwidth and expected bandwidth to be transferred by the 4G cell in the next cycle, and broadcast them to its neighboring cells through the Xn port.

[0151] As shown in FIG5 , the 4G cells include 4GDSS cell 1, 4GDSS cell 2, and 20M4G cell 1.

[0152] The maximum transfer bandwidth and expected transfer bandwidth of the 4G cell in the next cycle can be further converted into the corresponding number of MBSFN subframes and then broadcast to its neighboring cells through the Xn port.

[0153] Based on the maximum yielded bandwidth calculation formula 1: max(4G configured bandwidth - 4G user's expected bandwidth for the next cycle, 0), the maximum yielded bandwidth for each cell in the next cycle can be calculated as follows:

[0154] The maximum bandwidth to be transferred in the next cycle of 4GDSS cell 1 (belonging to 20MDSS cell 1) = max(20-10,0) = 10M bandwidth, which is approximately 5 MBSFN subframes.

[0155] The expected bandwidth to be transferred in the next cycle of 4GDSS cell 1 (belonging to 20MDSS cell 1) = min(max(6-0,0),max(20-10,0)) = 6M bandwidth, which is approximately 3 MBSFN subframes.

[0156] The maximum bandwidth to be transferred in the next cycle of 4GDSS cell 2 (belonging to 20MDSS cell 2) = max(20-12,0) = 8M bandwidth, which is approximately 4 MBSFN subframes.

[0157] The expected bandwidth to be transferred in the next cycle of 4GDSS cell 2 (belonging to 20MDSS cell 2) = min(max(4-0,0),max(20-12,0)) = 4M bandwidth, which is approximately 2 MBSFN subframes.

[0158] The expected bandwidth to be transferred in the next cycle of 20M4G cell 1 = max(20-18,0) = 2M bandwidth, which is approximately 1 MBSFN subframe.

[0159] Since the expected number of MBSFN subframes for the next cycle of 4GDSS cell 1 is 3 subframes, which is greater than 0, it is necessary to send a broadcast message, such as "Expected configuration of 3 MBSFN subframes, optional," to all of its high-interference co-frequency neighboring cells, 4GDSS cell 2 (belonging to 20MDSS cell 2). The expected number of MBSFN subframes for the next cycle of 4GDSS cell 2 is 2 subframes, which is greater than 0. Therefore, it is necessary to send a broadcast message, such as "Expected configuration of 2 MBSFN subframes, optional," to all of its high-interference co-frequency neighboring cells, 4GDSS cell 1 (belonging to 20MDSS cell 1) and 20M4G cell 1.

[0160] S4: The 4G or 4GDSS cell receives the broadcast message from the neighboring cell within the specified time window, and then decides and executes the configuration of the cell in the next cycle.

[0161] The configuration of the next cycle is the MBSFN configuration, that is, the target number of allocated subframes for calculating the MBSFN service. For details, please refer to Formula 6:

[0162] max(min(maximum number of MBSFN subframes in the next cycle of this area, max(expected number of MBSFN subframes in the next cycle of this area, max(expected number of MBSFN subframes in the next cycle received from the neighboring cell "non-mandatory"))), max(expected number of MBSFN subframes in the next cycle received from the neighboring cell "mandatory"))----Formula 6.

[0163] 6 , it can be obtained that the target number of MBSFN allocated subframes for 4GDSS cell 1 (belonging to 20MDSS cell 1) = max(min(5, max(3, max(2))), max(0)) = 3 MBSFN subframes.

[0164] 4GDSS cell 2 (belonging to 20MDSS cell 2) MBSFN target allocated subframe number = max(min(4, max(2, max(3))), max(0)) = 3 MBSFN subframes.

[0165] The target number of MBSFN allocated subframes for 20M4G cell 1 = max(min(1, max(0, max(2))), max(0)) = 1 MBSFN subframe.

[0166] After the calculation is completed, the above cell performs the MBSFN configuration operation according to the above calculation result in the next period.

[0167] Among them, the MBSFN configuration order can be required to be 1, 3, 6, 8, 2, 7 (FDD does not allow the configuration of subframes 0, 4, 5, 9, and TDD does not allow the configuration of subframes 0, 1, 5, and 6. The FDD system is taken as an example here). Therefore, the two 4GDSS cells configure subframes 1, 3, and 6 as MBSFN subframes, and the 20M4G cell configures subframe 1 as an MBSFN subframe.

[0168] Step 5: 5GDSS or 5G cell implements automated interference avoidance measures.

[0169] Among them, the 5GDSS or 5G cell configures a CSI-IM of 4 consecutive REs on a symbol where the 4GCRS of the 4G / 5G shared spectrum is located, so that the 5G user can periodically report the interference measurement results including the subband (the subband refers to the spectrum range covered by the CSI-IM of 4 consecutive REs configured by the 5GDSS or 5G cell on a symbol where the 4GCRS of the 4G / 5G shared spectrum is located.), and the 5GDSS or 5G cell decides how the user uses the shared spectrum RB resources based on the interference measurement results reported by the 5G user in combination with the frequency selection strategy. Among them, because the CSI-IM configured above can measure the 4GCRS interference and 4G and 5GPDSCH interference of all co-frequency neighboring cells, if there is still strong interference on some RBs at the location of the 5G user, these RBs can be avoided when configuring RB resources for the 5G user, thereby eliminating interference.

[0170] For example, 5GDSS cells 1 and 2 can both configure CSIIM of 4 consecutive REs on symbol 11 of the 10M4G and 5G shared spectrum for interference measurement, where LTE CRS is usually distributed on symbols 0, 4, 7, and 11 (symbols not marked).

[0171] As shown in Figure 5, 5GDSS cell 1 (belonging to 20M DSS cell 1) and its co-frequency neighboring cells are configured with MBSFN subframes in the full 20M bandwidth of subframes 1, 3, and 6. Therefore, 5G users at all locations on 5GDSS cell 1 will most likely not find strong interference in subframes 1, 3, and 6, and will only find strong interference in other subframes. Therefore, these 5G users can all enjoy a clean spectrum with a bandwidth of approximately 6M, fully meeting their needs.

[0172] However, the 20M4G cell 1 on the right side of the same frequency neighboring cell 20M on the 5GDSS cell 2 (belonging to the 20M DSS cell 2) is only configured with MBSFN subframes in subframe 1. Therefore, 5G users in the overlapping coverage area of ​​5GDSS cell 2 and 20M4G cell 1 (such as the crying face area in Figure 6) will most likely not find strong interference only in subframe 1. Strong interference will be found in the other 9 subframes. Therefore, these 5G users can only enjoy 2M bandwidth clean spectrum.

[0173] 5G users in 5GDSS cell 2 (belonging to 20M DSS cell 2) that are not in the overlapping coverage area with 20M 4G cell 1 (such as the smiley face area of ​​5GDSS cell 2 in Figure 6) will most likely not find strong interference in subframes 1, 3, and 6. Therefore, these 5G users can all enjoy a clean spectrum of approximately 6M bandwidth, fully meeting their needs.

[0174] That is, through the above calculation results, it can be seen that the MBSFN target allocated subframe number 1 of 20M4G cell 1 is less than the MBSFN target allocated subframe number 3 of 4GDSS cell 2 (belonging to 20MDSS cell 2). Therefore, it can be considered that 20M4G cell 1 is an interfering cell of 4GDSS cell 2.

[0175] As can be seen from Figure 6, the 4G of 20M4G cell 1 (i.e., the total number of second network configurations) is 20M, and its own 4G demand is 18M. Therefore, the 4G allocation number of 20M4G cell 1 in the next cycle is 2M, and the interference resources caused by 20M4G cell 1 to 4GDSS cell 2 are 18M. Therefore, it can be determined that the effective resources of the overlapping coverage area of ​​20M4G cell 1 and 4GDSS cell 2 (such as the crying face area in Figure 6) are 2M. Therefore, the 5G users in the crying face area in Figure 6 on 5GDSS cell 2 can only enjoy 2M bandwidth clean spectrum, that is, 2M bandwidth clean spectrum (i.e., effective resources) are allocated to 5G users (i.e., first network users) in the overlapping area of ​​5GDSS cell 2 (i.e., target cell) with the 20M4G cell 1 (i.e., interfering cell).

[0176] For 5G users on 20M DSS cell 2 that are not in the overlapping coverage area with 20M 4G cell 1 (such as the smiley face area of ​​5G DSS cell 2 in Figure 6), they can choose to be allocated from the interference resource 18M or the effective resource 2M.

[0177] Please refer to Figure 7, which is a structural diagram of an embodiment of an electronic device provided in the present application. The electronic device 80 includes a memory 81 and a processor 82, wherein the memory 81 stores a computer program; the processor 82 is used to implement the cell network interference coordination method provided by any one of the aforementioned method embodiments when executing the computer program.

[0178] Please refer to Figure 8, which is a structural diagram of an embodiment of a computer-readable storage medium provided in this application. The computer-readable storage medium 90 is used to store a computer program 91. When the computer program 91 is executed by a processor, it is used to implement the following method steps.

[0179] Obtain the target allocation number of the second sub-area second network of the target spectrum sharing cell target cell in the preset period to the first sub-area first network in the preset period; and the second network allocation number of each adjacent cell neighboring cell of the target spectrum sharing cell target cell in the preset period.

[0180] If the second network allocation number of any adjacent cell neighboring area among the adjacent cell neighboring areas is less than the target allocation number, the adjacent cell neighboring area is regarded as an interfering cell.

[0181] Determine the effective resources in the overlapping area between the target cell and the interfering cell in the target spectrum sharing cell.

[0182] Effective resources are allocated to a first network user who is in a target spectrum sharing cell and in an area overlapping with an interfering cell.

[0183] It can be understood that when the computer program 91 is executed by the processor, it is also used to implement the technical solution of any embodiment in the present application.

[0184] In the several embodiments provided in this application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of modules or units is merely a logical functional division. In actual implementation, other division methods may be used. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not implemented.

[0185] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0186] In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The above-mentioned integrated units may be implemented in the form of hardware or software functional units.

[0187] If the integrated units in the above other embodiments are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the various implementation methods of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0188] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A cell network interference coordination method, wherein: The target cell includes a first network and a second network, and the method includes: Obtaining a target allocation number of the target cell from the second network to the first network in a preset period; and a second network allocation number of each neighboring area of ​​the target cell in the preset period; if the second network allocation number of any neighboring area among the neighboring areas is less than the target allocation number, treating the neighboring area as an interfering cell; Determine effective resources in an overlapping area between the target cell and the interfering cell; The effective resources are allocated to a first network user in the target cell in an overlapping area with the interfering cell.

2. The method according to claim 1, wherein: The acquiring the target allocation number of the target cell by the second network to the first network in the preset period includes: Acquire the maximum yielded bandwidth and expected yielded bandwidth of the target cell in the preset period, and the expected yielded bandwidth of the neighboring cell in the preset period; The target allocation number of the target cell in the preset period is determined based on the maximum yielded bandwidth and the expected yielded bandwidth of the target cell in the preset period and the expected yielded bandwidth of the neighboring cell in the preset period.

3. The method according to claim 2, wherein: The interference coordination system only supports preset service configurations, and the determining the target allocation number of the target cell in the preset period based on the maximum yield bandwidth and the expected yield bandwidth of the target cell in the preset period, and the expected yield bandwidth of the neighboring cell in the preset period, includes: Converting the maximum yielded bandwidth and the expected yielded bandwidth of the target cell in the preset period into the maximum number of subframes and the expected number of subframes corresponding to the preset service of the target cell respectively; and converting the expected yielded bandwidth of the neighboring cell in the preset period into the expected number of subframes corresponding to the preset service of the neighboring cell; Based on the maximum number of subframes and the expected number of subframes corresponding to the preset service of the target cell in the preset period, and the expected number of subframes corresponding to the preset service of the neighboring cell in the preset period, the target allocated number of subframes corresponding to the preset service of the target cell in the preset period is determined.

4. The method according to claim 2, wherein: The interference coordination system only supports preset reference signal configuration, and the determining the target allocation number of the target cell in the preset period based on the maximum yield bandwidth and the expected yield bandwidth of the target cell in the preset period, and the expected yield bandwidth of the neighboring cell in the preset period, includes: Converting the maximum yielded bandwidth and the expected yielded bandwidth of the target cell in the preset period into the maximum number of resources and the expected number of resources corresponding to the preset reference signal of the target cell respectively; and converting the expected yielded bandwidth of the neighboring cell in the preset period into the expected number of resources corresponding to the preset reference signal of the neighboring cell; The target number of resources for the preset reference signal of the target cell is determined based on the maximum number of resources and the expected number of resources corresponding to the preset reference signal of the target cell and the expected number of resources corresponding to the preset reference signal of the neighboring cell.

5. The method according to claim 2, wherein: The interference coordination system supports both preset service configuration and preset reference signal configuration, and the method includes: The maximum yield bandwidth and the expected yield bandwidth of the target cell in the preset period are converted into the number of subframes corresponding to the preset service and then rounded down to obtain the remaining maximum yield bandwidth and the expected yield bandwidth. Width; The remaining maximum yielded bandwidth and the expected yielded bandwidth are converted into the number of resources corresponding to the preset reference signal, wherein, in the same network, the allocation method of the preset service configuration and the preset reference signal configuration are integrated.

6. The method according to claim 3, wherein: The determining, based on the maximum number of subframes and the expected number of subframes corresponding to the preset service of the target cell in the preset period, and the expected number of subframes corresponding to the preset service of the neighboring cell in the preset period, a target number of allocated subframes corresponding to the preset service of the target cell in the preset period, includes: Selecting a larger one from the expected number of subframes of the target cell in a preset period and the expected number of subframes of the neighboring cell in a preset period as the target expected number of subframes; A smaller one is selected from the target expected subframe number and the maximum subframe number of the target cell in a preset period as the target allocated subframe number corresponding to the preset service of the target cell in the preset period.

7. The method according to claim 2, wherein: The obtaining of the maximum yielded bandwidth of the target cell in the preset period includes: Acquire the configured bandwidth of the second network and the expected bandwidth of the second network user in the preset period; The maximum yielded bandwidth of the target cell in the preset period is obtained based on the difference between the configured bandwidth of the second network and the expected bandwidth of the second network user in the preset period.

8. The method according to claim 2, wherein: Acquiring the expected yielded bandwidth of the target cell in the preset period includes: Obtaining the expected bandwidth of the first network user in the preset period and the first network exclusive bandwidth; Determine the difference between the expected bandwidth of the first network user in the preset period and the exclusive bandwidth of the first network; Based on the difference between the expected bandwidth of the first network user in the preset period and the exclusive bandwidth of the first network, and the maximum yielded bandwidth of the target cell in the preset period, the expected yielded bandwidth of the target cell in the preset period is obtained.

9. The method according to claim 1, wherein: The determining effective resources in the overlapping area between the target cell and the interfering cell includes: Obtaining interference resources of the interfering cell to the target cell based on the second network allocation number of the interfering cell and the total number of second network configurations of the interfering cell; The interference resources are screened out from the configured bandwidth of the second network of the target cell to obtain effective resources in the target cell in an overlapping area with the interference cell.

10. The method according to claim 8, wherein: The method further comprises: The interference resources and / or the effective resources are allocated to the first network users in the target cell in an area that does not overlap with the interference cell.

11. The method according to claim 1, wherein: The obtaining the second network allocation number in each neighboring cell of the target cell includes: If the expected bandwidth of the target cell in the preset period is greater than 0, mandatory and / or non-mandatory broadcast information of the expected bandwidth is sent to each neighboring cell of the target cell; Within a preset time, receive the second network allocation numbers respectively corresponding to each of the neighboring cells determined and fed back based on the broadcast information.

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