Cell interference coordination method, apparatus, server, and storage medium

Abstract

The present invention relates to a communication technology field, and in particular to a cell interference coordination method, a device, a server, and a storage medium. The cell interference coordination method includes: acquiring a policy information table including a first periodic priority policy of a target cell and a second periodic priority policy of each associated cell of the target cell in a next period of the target cell, acquiring a cluster state of the target cell according to the first periodic priority policy and each of the second periodic priority policies, and determining an interference coordination policy of the target cell in the next period based on the first periodic priority policy and the cluster state.

Description

Technical Field

[0001] (Cross-reference to Related Applications) This application claims priority to a Chinese patent application with application number 202111551195.5, filed on December 17, 2021.

[0002] Embodiments of this application relate to the field of communication technologies, and in particular, to a cell interference coordination method, apparatus, server, and storage medium.

Background Art

[0003] Currently, how to efficiently use spectrum resources has become the focus of research in the field of mobile wireless networks, and a series of new technologies have emerged one after another. Among them, typical ones are frame structure orchestration and dynamic spectrum sharing (DSS for short) orchestration. Frame structure orchestration is a technology that dynamically adjusts the ratio of uplink frames and downlink frames according to the ratio of uplink and downlink loads in a time division duplex (TDD) network. With frame structure orchestration, it is possible to dynamically adapt to the changing trends of uplink and downlink loads, improve the utilization efficiency of spectrum resources, and at the same time improve the user experience. DSS orchestration refers to a state where various types of wireless access network services are simultaneously deployed in a DSS state (such as 3G / 4G / 5G DSS), and a state that provides only a single type of service (such as pure 5G) are supported by a cell on a single spectrum, and the real-time state of the cell is dynamically adjusted according to the change in the real-time load ratio of users of each type. By using DSS orchestration, it is possible to dynamically adapt to the changing trends of different types of traffic, and at the same time, by saving the fixed overhead of DSS rate matching, the utilization efficiency of spectrum resources can be greatly improved.

[0004] However, in the case of frame structure orchestration, there may be significant differences in the ratio of uplink and downlink loads in different sub-sections. Therefore, after enabling frame structure orchestration, there is a very high probability that the frame structures between related cells cannot be aligned, and if the downlink subframes of an in-frequency adjacent cell collide with the uplink subframes of the own cell, it will cause serious interference to the cell's uplink. In the case of DSS orchestration, there may also be significant differences in the ratio of different types of traffic between different cells. Therefore, after enabling DSS orchestration, there is a very high probability that the cell states between related cells cannot be aligned. If an in-frequency adjacent cell is in a 4G / 5G DSS state and the own cell is in a pure 5G state, the cell reference signal (CRS) of the in-frequency adjacent DSS 4G will cause serious interference to the cell's physical downlink shared channel (PDSCH). [Overview of the project] [Problems that the invention aims to solve]

[0005] The main objective of the embodiments of this application is to propose a method, apparatus, server, and storage medium for cell interference coordination. The aim is to achieve automatic and accurate inter-cell interference coordination under frame structure orchestration or DSS orchestration schemes, thereby eliminating / mitigating the impact of related inter-cell interference on the user's channel quality. [Means for solving the problem]

[0006] To achieve the above objective, an embodiment of the present application provides a cell interference coordination method, the cell interference coordination method comprising: obtaining a policy information table for the next cycle of a target cell, including a first period priority policy for the target cell and second period priority policies for each associated cell of the target cell; obtaining the cluster state of the target cell according to the first period priority policy and each of the second period priority policies; and determining an interference coordination policy for the next cycle of the target cell based on the first period priority policy and the cluster state.

[0007] To achieve the above objective, an embodiment of the present application further provides a cell interference coordination device, the cell interference coordination device comprising a first acquisition module, a second acquisition module, and a policy determination module, wherein the first acquisition module is used to acquire a policy information table for the next cycle of the target cell, including a first period priority policy for the target cell and second period priority policies for each associated cell of the target cell; the second acquisition module is used to acquire the cluster state of the target cell according to the first period priority policy and each of the second period priority policies; and the policy determination module is used to determine the interference coordination policy for the next cycle of the target cell based on the first period priority policy and the cluster state, according to a preset interference coordination rule.

[0008] To achieve the above objective, embodiments of the present invention further provide a server, the server comprising at least one processor and a memory communicably connected to the at least one processor, the memory storing instructions that can be executed by the at least one processor, the execution of which enables the at least one processor to perform the above-described cell interference coordination method.

[0009] To achieve the above objective, embodiments of the present invention further provide a computer-readable storage medium. The computer-readable storage medium stores a computer program that, when executed by a processor, realizes the above-described method of cell interference coordination.

[0010] (Beneficial effects) According to the cell interference coordination method proposed in this application, in the interference coordination process of a target cell, a policy information table is obtained that includes a first period priority policy for the target cell and a second period priority policy for each related cell of the target cell for the next period of the target cell. The cluster state of the target cell is obtained according to the first period priority policy and each of the second period priority policies. An interference coordination policy for the next period of the target cell is determined based on the first period priority policy and the cluster state. By obtaining the cluster state of the target cell by combining the next period priority policies of the target cell and each related cell, and then determining an appropriate interference coordination policy based on the cluster state of the target cell and the period priority policy, automatic and accurate inter-cell interference coordination can be achieved under frame structure orchestration or DSS orchestration schemes, eliminating / mitigating the impact of inter-related cell interference on the user's channel quality. This solves the technical problem of severe inter-related cell interference caused by the inability to align the frame structure between related cells in frame structure orchestration and the inability to align the cell states between related cells in DSS orchestration. [Brief explanation of the drawing]

[0011] [Figure 1] This is a flowchart of a cell interference coordination method using a DSS orchestration method provided by the embodiment of the present invention. [Figure 2] This is a schematic diagram of the target cell and each associated cell provided by the embodiment of the present application. [Figure 3]This is a schematic diagram of the cluster state of the target cell provided by the embodiment of the present invention. [Figure 4] A schematic diagram of policy information for a target cell using a DSS orchestration method, as provided by the embodiment of the present invention. [Figure 5] This is a flowchart of a cell interference coordination method using a frame structure orchestration method provided by the embodiment of the present invention. [Figure 6] A schematic diagram of policy information for a target cell using a frame structure orchestration method, as provided by the embodiment of the present invention. [Figure 7] This is a flowchart of the cell interference coordination method provided by the embodiment of the present invention. [Figure 8] This is a schematic diagram of the initialization policy information for the target cell provided by the embodiment of the present invention. [Figure 9] This is a schematic diagram of the cell interference coordination device provided by the embodiment of the present application. [Figure 10] This is a schematic diagram of the server configuration provided by the embodiment of the present invention. [Modes for carrying out the invention]

[0012] To further clarify the purpose, technical proposal, and advantages of the embodiments of this application, each embodiment will be described in detail below in conjunction with the accompanying drawings. However, those skilled in the art will understand that many technical details are provided in each embodiment of this application to help the reader better understand the application. However, the technical proposal for which protection is sought can be realized without these technical details and the various changes and modifications based on the embodiments below. The classification of the embodiments below is for illustrative purposes only and should not constitute any limitation to the specific embodiments of this application, and the embodiments may be combined or referenced to one another as long as they do not contradict each other.

[0013] One embodiment of the present invention relates to a cell interference coordination method applied to a target cell using a DSS orchestration method, and as shown in Figure 1, the cell interference coordination method includes the following steps.

[0014] In step 101, a policy information table is obtained that includes the first periodic priority policy for the target cell and the second periodic priority policies for each of the target cell's related cells in the next period of the target cell.

[0015] In one exemplary embodiment, any one base station cell can be designated as a target cell, and the associated cells of the target cell refer to all in-frequency adjacent cells whose coverage overlaps with that of the target cell. As shown in Figure 2, all in-frequency adjacent cells whose coverage overlaps with that of base station cell 40001 are base station cells 40003, 40007, and 40009. Therefore, when base station cell 40001 is designated as the target cell, its associated cells are base station cells 40003, 40007, and 40009. Similarly, when base station cell 40003 is designated as the target cell, its associated cell is base station cell 40001. When base station cell 40007 is designated as the target cell, its associated cells are base station cells 40001, 40009, and 40011. When base station cell 40009 is designated as the target cell, its associated cells are base station cells 40001 and 40007. Similarly, if base station cell 40011 is the target cell, then each of its associated cells is base station cell 40007.

[0016] In an exemplary embodiment, the policy information table of each target cell is composed of a cell identifier and a cycle selection policy for the next cycle of the cell. As shown in FIG. 4, the policy information table of each target cell is provided. In the policy information table, in order to distinguish between the target cell and the associated cells, the target cell may be set as the first one, or the method of increasing the identifier may be used, or it may be distinguished directly based on the cell identifier of each cell. Here, the cell identifier refers to a unique arbitrary identification number assigned to each cell, and its initialization value is the identification number assigned by the system. Since the cycle is preset, the next cycle refers to the nearest future cycle, and the next cycle priority policy refers to the policy selected by each cell for the next cycle based on the load prediction of the next cycle and other related information, and its initialization value is the default policy that is predefined and the same for all cells.

[0017] In an exemplary embodiment, the first cycle priority policy and the second cycle priority policy are in a pure 5G state (i.e., 5G) or a 4 / 5G shared state (i.e., 4G / 5G DSS).

[0018] In step 102, according to the first cycle priority policy and each second cycle priority policy, obtain the cluster state of the target cell.

[0019] In an exemplary embodiment, the cluster state of the target cell is determined based on the first cycle priority policy of the target cell and the second cycle priority policies of each associated cell. When all of the first cycle priority policy and each second cycle priority policy match, the cluster state of the target cell is regarded as the in-cluster state. On the other hand, when there is a mismatch between the first cycle priority policy and each second cycle priority policy, the cluster state of the target cell is regarded as the out-of-cluster state.

[0020] In an exemplary embodiment, as shown in FIG. 3, when the target cell and each associated cell match in the cycle priority policy of the next cycle, it means that the target cell and each associated cell are in the same operating environment and state in the next cycle. In this case, the cluster state of the target cell is regarded as the in-cluster state. When the target cell and each associated cell do not match in the cycle priority policy of the next cycle, it means that the target cell and each associated cell are in different operating environments and states in the next cycle. In this case, the cluster state of the target cell is regarded as the out-of-cluster state.

[0021] In an exemplary embodiment, taking the policy information table of the target cell given by FIG. 4 as an example, for the target cell 40001, since the cycle priority policy of the associated cell 40003 does not match the cycle priority policy of the target cell 40001, the target cell 40001 is in the out-of-cluster state. For the target cell 40003, since the cycle priority policy of the associated cell 40001 does not match the cycle priority policy of the target cell 40003, the target cell 40003 is in the out-of-cluster state. For the target cell 40007, since the cycle priority policy of the associated cell 40011 does not match the cycle priority policy of the target cell 40007, the target cell 40007 is in the out-of-cluster state. For the target cell 40009, since the cycle priority policies of the associated cells 40001 and 40007 all match the cycle priority policy of the target cell 40009, the target cell 40009 is in the in-cluster state. For the target cell 40011, since the cycle priority policy of the associated cell 40007 does not match the cycle priority policy of the target cell 40011, the target cell 40011 is in the out-of-cluster state.

[0022] In step 103, based on the first cycle priority policy and the cluster state, determine the interference coordination policy of the target cell in the next cycle.

[0023] In one exemplary embodiment, the first periodic priority policy of the target cell is either a pure 5G state or a 4 / 5G shared state, the cluster state of the target cell is either an in-cluster state or a non-in-cluster state, and the rules for determining the interference coordination policy are as follows: (1) If the cluster state is an in-cluster state and the first periodic priority policy is a pure 5G state, the interference coordination policy is a no-interference coordination policy. (2) If the cluster state is an in-cluster state and the first periodic priority policy is a 4 / 5G shared state, the interference coordination policy is an adaptive on / off symbol level rate matching policy. (3) If the cluster state is a non-in-cluster state and the first periodic priority policy is a pure 5G state, the interference coordination policy is an adaptive on / off symbol level rate matching policy. (4) If the cluster state is a non-in-cluster state and the first periodic priority policy is a 4 / 5G shared state, the interference coordination policy is an adaptive on / off symbol level rate matching policy.

[0024] In one exemplary embodiment, the adaptive on / off symbol level rate matching policy includes determining whether or not to perform symbol level rate matching based on the 4G cell reference signal interference intensity of each associated cell, and selecting a target resource block from each resource block and scheduling it based on the interference status of each resource block measured on the Channel State Information-Interference Measurement Resource (CSI-IM) of the target cell.

[0025] In one exemplary embodiment, using the policy information table for target cells given in Figure 4 as an example, target cell 40001 is in a non-cluster state, its first periodic priority policy is a pure 5G state, and its interference coordination policy is an adaptive on / off symbol level rate matching policy. Target cell 40003 is in a non-cluster state, its first periodic priority policy is a 4 / 5G shared state, and its interference coordination policy is an adaptive on / off symbol level rate matching policy. Target cell 40007 is in a non-cluster state, its first periodic priority policy is a pure 5G state, and its interference coordination policy is an adaptive on / off symbol level rate matching policy. Target cell 40009 is in a non-cluster state, its first periodic priority policy is a pure 5G state, and its interference coordination policy is a no-interference coordination policy. Target cell 40011 is in a non-cluster state, the first period priority policy is 4 / 5G shared state, and the interference coordination policy for target cell 40011 is an adaptive on / off symbol level rate matching policy.

[0026] In one exemplary embodiment, the priority policies that the target cell will activate in the next cycle are the cycle priority policies shown in Figure 4.

[0027] According to this embodiment, in the interference coordination process of a target cell, a policy information table is obtained that includes a first period priority policy for the target cell and a second period priority policy for each related cell of the target cell for the next period of the target cell. The cluster state of the target cell is obtained according to the first period priority policy and each of the second period priority policies. The interference coordination policy for the next period of the target cell is determined based on the first period priority policy and the cluster state. By obtaining the cluster state of the target cell by combining the next period priority policies of the target cell and each related cell, and then determining an appropriate interference coordination policy based on the cluster state of the target cell and the period priority policy, automatic and accurate inter-cell interference coordination is achieved under frame structure orchestration or DSS orchestration methods. This eliminates / mitigates the impact of inter-related cell interference on the user's channel quality and solves the technical problem of severe inter-related cell interference caused by the inability to align the frame structure between related cells in frame structure orchestration and the inability to align the cell states between related cells in DSS orchestration.

[0028] One embodiment of the present invention relates to a method for cell interference coordination applied to a target cell using a frame structure orchestration method, and as shown in Figure 5, the cell interference coordination method includes the following steps.

[0029] In step 201, a policy information table is obtained that includes the first periodic priority policy for the target cell and the second periodic priority policies for each of the target cell's related cells in the next period of the target cell.

[0030] In one exemplary embodiment, this step is substantially the same as step 101 of the embodiment of the present application, and therefore will not be described here. The only difference is that the first and second period priority policies are either a DDDSU frame structure or a DSUUU frame structure, where a DDDSU frame structure means that the base station cell employs a 30KHz subcarrier interval and a 2.5ms single-period frame structure, with each of the five slots in each period consisting of three downlink slots, one special slot, and one uplink slot. A DSUUU frame structure means that the base station cell employs a 30KHz subcarrier interval and a 2.5ms single-period frame structure, with each of the five slots in each period consisting of one downlink slot, one special slot, and three uplink slots.

[0031] In step 202, the cluster state of the target cells is obtained according to the first period priority policy and each of the second period priority policies.

[0032] In one exemplary embodiment, if the first periodic priority policy and each of the second periodic priority policies all match, the cluster state of the target cell is in-cluster, and if there is a mismatch between the first periodic priority policy and each of the second periodic priority policies, the cluster state of the target cell is not in-cluster.

[0033] In one exemplary embodiment, using the policy information table for target cells given in Figure 6 as an example, for target cell 40001, the periodic priority policies of related cells 40003 and 40007 do not match the periodic priority policy of target cell 40001, so target cell 40001 is in a non-cluster state. For target cell 40003, the periodic priority policies of related cell 40001 do not match the periodic priority policy of target cell 40003, so target cell 40003 is in a non-cluster state. For target cell 40007, the periodic priority policies of related cells 40001 and 40009 do not match the periodic priority policy of target cell 40007, so target cell 40007 is in a non-cluster state. For target cell 40009, the periodic priority policies of each related cell 40007 do not match the periodic priority policy of target cell 40007, so target cell 40009 is in a non-cluster state. For target cell 40011, the periodic priority policy of related cell 40007 matches the periodic priority policy of target cell 40011, therefore target cell 40011 is in a cluster state.

[0034] In step 203, the interference coordination policy for the next cycle of the target cell is determined based on the first cycle priority policy and the cluster state.

[0035] In one exemplary embodiment, the first periodic priority policy is a DDDSU frame structure or a DSUUU frame structure, the cluster state is an in-cluster state or a non-in-cluster state, and the rules for determining the interference coordination policy are as follows: (1) If the cluster state is an in-cluster state and the first periodic priority policy is a DDDSU frame structure, the interference coordination policy is a policy of no interference coordination. (2) If the cluster state is a non-in-cluster state and the first periodic priority policy is a DDDSU frame structure, the interference coordination policy is a policy of coordinating by combining the coordination on / off bitmaps of each related cell. (3) If the cluster state is an in-cluster state and the first periodic priority policy is a DSUUU frame structure, the interference coordination policy is a policy of no interference coordination. (4) If the cluster state is a non-in-cluster state and the first periodic priority policy is a DSUUU frame structure, the interference coordination policy is a policy of coordinating by combining the coordination on / off bitmaps of each of the related cells.

[0036] In one exemplary embodiment, using the policy information table of target cells given in Figure 6 as an example, target cell 40001 is in a non-cluster state, and the first periodic priority policy is a DDDSU frame structure, and the interference coordination policy of target cell 40001 is a policy that coordinates by combining the coordination on / off bitmaps of each related cell; target cell 40003 is in a non-cluster state, and the first periodic priority policy is a DSUUU frame structure, and the interference coordination policy of target cell 40003 is a policy that coordinates by combining the coordination on / off bitmaps of each related cell; and target cell 40007 is in a non-cluster state If the first periodic priority policy is a DSUUU frame structure and the interference coordination policy for target cell 40007 is a policy that coordinates by combining the coordination on / off bitmaps of each related cell, if target cell 40009 is in a non-cluster state and the first periodic priority policy is a DDDSU frame structure and the interference coordination policy for target cell 40009 is a policy that coordinates by combining the coordination on / off bitmaps of each related cell, if target cell 40011 is in a cluster state and the first periodic priority policy is a DSUUU frame structure and the interference coordination policy for target cell 40011 is a policy that does not perform interference coordination.

[0037] In one exemplary embodiment, the priority policies that the target cell will activate in the next cycle are the cycle priority policies shown in Figure 6.

[0038] According to this embodiment, in the interference coordination process of a target cell, a policy information table is obtained that includes a first period priority policy for the target cell and a second period priority policy for each related cell of the target cell for the next period of the target cell. The cluster state of the target cell is obtained according to the first period priority policy and each of the second period priority policies. The interference coordination policy for the next period of the target cell is determined based on the first period priority policy and the cluster state. By obtaining the cluster state of the target cell by combining the next period priority policies of the target cell and each related cell, and then determining an appropriate interference coordination policy based on the cluster state of the target cell and the period priority policy, automatic and accurate inter-cell interference coordination is achieved under frame structure orchestration or DSS orchestration methods. This eliminates / mitigates the impact of inter-related cell interference on the user's channel quality and solves the technical problem of severe inter-related cell interference caused by the inability to align the frame structure between related cells in frame structure orchestration and the inability to align the cell states between related cells in DSS orchestration.

[0039] One embodiment of the present invention relates to a cell interference coordination method applicable to a target cell using a frame structure orchestration method or a DSS orchestration method, and as shown in Figure 7, the cell interference coordination method includes the following steps.

[0040] In step 301, periodic load prediction is performed on the target cell, and a first periodic priority policy is obtained based on the prediction results for the target cell.

[0041] In one exemplary embodiment, the load of the target cell includes, but is not limited to, the uplink / downlink PRB utilization rate of the logical cell, the number of RRC users, and the number of active users. Periodic load forecasting for the target cell is performed based on the target cell's past periodic load data, and this application does not limit the specific forecasting algorithm employed; any periodic load forecasting algorithm can be used.

[0042] In one exemplary embodiment, when the target cell employs a dynamic spectrum sharing orchestration scheme, the generation rules for the target cell's first periodic priority policy include the following rules: (1) If the prediction result indicates that the 4G load on the target cell is light and the 4G load on the base cell corresponding to the target cell is light, the first periodic priority policy is a policy that adopts the pure 5G state. (2) If the prediction result indicates that the 4G load on the target cell is light and the 4G load on the base cell corresponding to the target cell is heavy, the first periodic priority policy is a policy that adopts the 4 / 5G shared state. (3) If the prediction result indicates that the 4G load on the target cell is heavy, the first periodic priority policy is a policy that adopts the 4 / 5G shared state. Here, the base cell corresponding to the target cell refers to a base station cell capable of accepting the 4G traffic of the target cell.

[0043] In one exemplary embodiment, when the target cell employs a frame structure orchestration method, the generation rules for the target cell's first period priority policy include the following rules: (1) If the prediction result indicates that the target cell's downlink load is heavy, the first period priority policy is a policy that adopts the DDDSU frame structure. (2) If the prediction result indicates that the target cell's uplink load is heavy, the first period priority policy is a policy that adopts the DSUUU frame structure.

[0044] In one exemplary embodiment, since the target cell itself is also an associated cell of other base station cells, the target cell must broadcast to other adjacent cells within the same frequency after obtaining a first period priority policy, and the information broadcast includes a cell identifier and the corresponding period priority policy.

[0045] In step 302, broadcast information is received for each associated cell, including the second periodic priority policy and the associated cell identifier.

[0046] In one exemplary embodiment, after an associated cell obtains a second periodic priority policy, it broadcasts the second periodic priority policy along with the associated cell identifier, and the target cell can receive the broadcast information from each associated cell.

[0047] In one exemplary embodiment, since the periodicity of the target cell and each associated cell all coincides, the time at which the periodic priority policy is generated also coincides between the target cell and the associated cells. After generating the first periodic priority policy, the target cell may receive broadcast information from each associated cell within a predetermined time, and after the predetermined time has ended, it may begin updating the initialization policy information table.

[0048] In step 303, the first periodic priority policy and each second periodic priority policy are written to a pre-configured initialization policy information table based on the target cell identifier and each associated cell identifier to generate a policy information table.

[0049] In one exemplary embodiment, the format of the initialization policy information table is consistent with the format of the policy information table in Figure 3 or Figure 5. However, the initialization policy information table contains only the cell identifiers of the target cell and each associated cell, and the periodic priority policy corresponding to the target cell and each associated cell is blank. After obtaining the first periodic priority policy of the target cell and the second periodic priority policy of each associated cell, the policy information table for the target cell can be formed by writing the first periodic priority policy and each second periodic priority policy to the corresponding positions in the initialization policy information table based on the target cell identifier and each associated cell identifier. Here, as shown in Figure 8, the initialization policy information table contains the cell identifier of the target cell and the cell identifier of each associated cell, and in the initialization policy information table, the periodic priority policy corresponding to the target cell and each associated cell may be the initial periodic priority policy (4G / 5G DSS or DDDSU) or a null value.

[0050] In step 304, the cluster state of the target cell is obtained according to the first periodic priority policy and each second periodic priority policy in the policy information table.

[0051] In one exemplary embodiment, this step is substantially the same as step 102 or step 202 of the embodiment of the present application, and therefore will not be described here.

[0052] In step 305, the interference coordination policy for the next cycle of the target cell is determined based on the first cycle priority policy and the cluster state.

[0053] In one exemplary embodiment, this step is substantially the same as step 103 or step 203 of the embodiment of the present application, and therefore will not be described here.

[0054] Based on other embodiments, the embodiments of the present invention further optimize the interference coordination capability of the interference coordination policy by updating the target cell's policy information table at regular intervals, thereby ensuring that the determined interference coordination policy matches the traffic conditions of the target cell.

[0055] The steps outlined above are provided solely for illustrative purposes and can be combined into a single step or subdivided into multiple steps during implementation. Any combination that includes the same logical relationships falls within the scope of this application. Similarly, any modification or introduction of non-essential design elements to an algorithm or process without altering its core design also falls within the scope of this application.

[0056] Another embodiment of the present invention relates to a cell interference coordination device applied to a target cell using a frame structure orchestration method or a DSS orchestration method. The details of the cell interference coordination device of this embodiment will be described below in detail below, but the following is to facilitate understanding of the details of the implementation provided and is not a requirement for carrying out this embodiment. Figure 9 is a schematic diagram of the cell interference coordination device described in this embodiment, and includes a first acquisition module 401, a second acquisition module 402, and a policy determination module 403.

[0057] The first acquisition module 401 is used to acquire a policy information table that includes the first periodic priority policy of the target cell and the second periodic priority policies of each associated cell of the target cell for the next period of the target cell.

[0058] The second acquisition module 402 is used to acquire the cluster state of the target cells according to the first periodic priority policy and each second periodic priority policy.

[0059] The policy determination module 403 is used to determine the interference coordination policy for the next cycle of the target cell, based on a first cycle priority policy and the cluster state, according to pre-configured interference coordination rules.

[0060] This embodiment is a system embodiment corresponding to the method embodiment described above, and it is readily apparent that this embodiment can be implemented in combination with the method embodiment. The relevant technical details and effects mentioned in the above embodiment are also valid in this embodiment; therefore, to reduce redundancy, their explanation is omitted here. Accordingly, the relevant technical details described in this embodiment are also applicable to the above embodiment.

[0061] This system embodiment primarily describes the software implementation level of the cell interference coordination method provided by the method embodiment, and its implementation also depends on hardware support. For example, the functions of the relevant modules may be placed on the processor in order for the processor to perform the corresponding functions. In particular, the relevant data generated by the execution may be stored in memory for subsequent inspection and use.

[0062] It should be noted that each module in this embodiment is a logic module, and in actual applications, a logic unit may be a single physical unit, a part of a single physical unit, or a combination of multiple physical units. Furthermore, in order to highlight the creative aspects of this application, means that are not particularly relevant to solving the technical problems raised herein have not been introduced in this embodiment, but this does not mean that other means do not exist in this embodiment.

[0063] Another embodiment of the present invention relates to a server. As shown in Figure 10, it includes at least one processor 501 and a memory 502 that is communicatively connected to the at least one processor 501, wherein the memory 502 stores instructions that can be executed by the at least one processor 501, and the execution of these instructions by the at least one processor 501 enables the at least one processor 501 to perform the cell interference coordination method in each of the above embodiments.

[0064] Here, the memory and processor are connected by a bus, which may include any number of interconnected buses and bridges, connecting various circuits of one or more processors and memory into one. The bus can also connect various other circuits, such as peripherals, voltage stabilizers, and power management circuits, but these are well known in this art and will not be explained further here. The bus interface provides an interface between the bus and a transceiver. The transceiver may be a single element or multiple elements such as multiple receivers and transmitters, and provides a means for communicating with various other devices over a transmission medium. Data processed by the processor is transmitted wirelessly via an antenna, and the antenna also receives data and transmits it back to the processor.

[0065] In addition to managing the bus and performing normal operations, the processor can provide a variety of other functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Meanwhile, memory may be used to store data used when the processor performs operations.

[0066] Another embodiment of the present invention relates to a computer-readable storage medium storing a computer program. The above embodiment of the method is realized when the computer program is executed by a processor.

[0067] That is, a person skilled in the art will understand that performing all or some of the steps in the methods of the above embodiments can be achieved by instructing the relevant hardware with a program. This program is stored on a storage medium and contains several instructions for causing a device (which may be a single-chip computer, a chip, etc.) or processor to perform all or some of the steps in the methods of each embodiment of the present application. On the other hand, the storage medium includes various media capable of storing program code, such as USB memory, removable hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0068] Those skilled in the art will understand that the above embodiments are specific examples for carrying out the present application, and that in actual applications, various formal and detailed modifications can be made without departing from the spirit and scope of the present application.

Claims

1. The first acquisition module acquires a policy information table that includes the first period priority policy of the target cell and the second period priority policies of each related cell of the target cell for the next period of the target cell. The second acquisition module acquires the cluster state of the target cell according to the first period priority policy and each of the second period priority policies, and if the target cell employs a dynamic spectrum sharing orchestration scheme, the first period priority policy is a pure 5G state or a 4 / 5G shared state, and the cluster state is an in-cluster state or a non-cluster state. The policy determination module includes the step of determining an interference coordination policy for the next cycle of the target cell based on the first period priority policy and the cluster state, If the cluster state is the in-cluster state and the first period priority policy is the pure 5G state, the interference coordination policy is to not perform interference coordination, or If the cluster state is the in-cluster state and the first period priority policy is the 4 / 5G shared state, then the interference coordination policy is an adaptive on / off symbol level rate matching policy, or If the cluster state is the non-cluster state and the first period priority policy is the pure 5G state, then the interference coordination policy is the adaptive on / off symbol level rate matching policy, or A cell interference coordination method wherein, when the cluster state is the non-cluster state and the first period priority policy is the 4 / 5G shared state, the interference coordination policy is the adaptive on / off symbol level rate matching policy.

2. The aforementioned adaptive on / off symbol level rate matching policy is: Based on the 4G cell reference signal interference intensity of each of the aforementioned related cells, it is determined whether or not to perform symbol level rate matching. Based on the interference status of each resource block measured on the channel state information interference measurement resource of the target cell, a target resource block is selected from each of the resource blocks and scheduling is performed. A method for coordinating cell interference according to claim 1, including the following:

3. When the target cell employs a frame structure orchestration method, the first period priority policy is a DDDSU frame structure or a DSUUU frame structure, and the cluster state is an in-cluster state or a non-cluster state. The step of determining the interference coordination policy for the next cycle of the target cell based on the first period priority policy and the cluster state is as follows: If the cluster state is an intra-cluster state and the first period priority policy is the DDDSU frame structure, the interference coordination policy is determined to be a policy that does not perform interference coordination, or If the cluster state is the non-cluster state and the first period priority policy is the DDDSU frame structure, the interference coordination policy is determined as a policy that coordinates by combining the coordination on / off bitmaps of each of the related cells, or If the cluster state is an intra-cluster state and the first period priority policy is the DSUUU frame structure, the interference coordination policy is determined to be a policy that does not perform interference coordination, or If the cluster state is the non-cluster state and the first period priority policy is the DSUUU frame structure, the interference coordination policy is determined as the policy that coordinates by combining the coordination on / off bitmaps of each of the related cells. A method for coordinating cell interference according to claim 1, including the following:

4. The policy information table further includes the target cell identifier of the target cell and the associated cell identifiers of each associated cell of the target cell, The step of obtaining the policy information table for the next cycle of the target cell is: The steps include performing periodic load prediction on the target cell and obtaining the first periodic priority policy based on the prediction results for the target cell, The steps include receiving broadcast information for each associated cell, which includes the second periodic priority policy and the associated cell identifier, The steps of generating the policy information table by writing the first periodic priority policy and each of the second periodic priority policies to a pre-configured initialization policy information table based on the target cell identifier and each of the associated cell identifiers, A method for coordinating cell interference according to claim 1, including the following:

5. If the target cell employs a dynamic spectrum sharing orchestration method, the step of obtaining the first period priority policy based on the prediction results of the target cell is as follows: If the prediction result indicates that the 4G load of the target cell is light and the 4G load of the base cell corresponding to the target cell is light, then the first period priority policy is obtained as a policy that adopts the pure 5G state, or If the prediction result indicates that the 4G load of the target cell is light and the 4G load of the base cell corresponding to the target cell is heavy, then the first period priority policy is obtained as a policy that adopts a 4 / 5G shared state, or If the prediction result indicates that the 4G load on the target cell is heavy, the first period priority policy is obtained as a policy that adopts a 4 / 5G shared state. A method for coordinating cell interference according to claim 4, including the method described in claim 4.

6. When the target cell employs a frame structure orchestration method, The step of obtaining the first periodic priority policy based on the prediction results of the target cell is: If the prediction result indicates that the downlink load of the target cell is heavy, the first period priority policy is obtained as a policy that adopts the DDDSU frame structure, or If the prediction result indicates that the downlink load of the target cell is heavy, the first period priority policy is obtained as a policy that adopts the DSUUU frame structure. A method for coordinating cell interference according to claim 4, including the method described in claim 4.

7. The step of obtaining the cluster state of the target cell according to the first period priority policy and each of the second period priority policies is: If the first period priority policy and each of the second period priority policies all match, the step is to obtain the cluster state of the target cell as the in-cluster state, or If there is a mismatch between the first period priority policy and each of the second period priority policies, the cluster state of the target cell is obtained as a non-cluster state. A method for coordinating cell interference according to claim 1, including the following:

8. It includes a first acquisition module, a second acquisition module, and a policy determination module, The first acquisition module is used to acquire a policy information table for the next cycle of the target cell, which includes the first cycle priority policy of the target cell and the second cycle priority policies of each associated cell of the target cell. The second acquisition module is used to acquire the cluster state of the target cell in accordance with the first period priority policy and each of the second period priority policies. When the target cell employs a dynamic spectrum sharing orchestration scheme, the first period priority policy is a pure 5G state or a 4 / 5G shared state, and the cluster state is an in-cluster state or a non-cluster state. The policy determination module is used to determine the interference coordination policy for the next cycle of the target cell based on the first period priority policy and the cluster state, in accordance with a pre-configured interference coordination rule. If the cluster state is the in-cluster state and the first period priority policy is the pure 5G state, the interference coordination policy is to not perform interference coordination, or If the cluster state is the in-cluster state and the first period priority policy is the 4 / 5G shared state, then the interference coordination policy is an adaptive on / off symbol level rate matching policy, or If the cluster state is the non-cluster state and the first period priority policy is the pure 5G state, then the interference coordination policy is the adaptive on / off symbol level rate matching policy, or If the cluster state is the non-cluster state and the first period priority policy is the 4 / 5G shared state, the interference coordination policy is the adaptive on / off symbol level rate matching policy. Cell interference coordination device.

9. It is a server, At least one processor, Includes a memory that is communicably connected to at least one processor, The memory stores instructions that can be executed by the at least one processor, and the execution of these instructions by the at least one processor enables the at least one processor to perform the cell interference coordination method described in any one of claims 1 to 7. server.

10. A computer-readable storage medium storing a computer program that, when executed by a processor, realizes a cell interference coordination method according to any one of claims 1 to 7.

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