A downlink interference avoidance scheduling method, device, apparatus and storage medium

Abstract

Embodiments of the present application provide a downlink interference avoidance scheduling method, device, apparatus and storage medium. The method comprises: determining the position of a target terminal; if the target terminal is located at the edge area of an interference cell, configuring a plurality of channel state information reference signal (CSI-RS) measurement bandwidths, wherein the plurality of CSI-RS measurement bandwidths comprise a full bandwidth CSI-RS measurement bandwidth and at least one CSI-RS measurement bandwidth with the size of the bandwidth of the interference cell; determining the interference level of the physical resource block (PRB) corresponding to the bandwidth of the interference cell based on the measurement values on the plurality of CSI-RS measurement bandwidths reported by the target terminal; and allocating resources for the data to be transmitted by the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interference cell. The embodiments of the present application can effectively identify and avoid downlink interference, and improve the throughput of the serving cell.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a scheduling method, device, apparatus and storage medium for avoiding downlink interference. Background Technology

[0002] Fourth-generation mobile communication (the 4G) th 4G and 5G mobile communication th When 4G and 5G base stations are deployed together, there is an overlap between their bandwidths, resulting in overlapping or edge coverage between Long Term Evolution (LTE) cells and New Radio (NR) cells, causing serious interference between them.

[0003] Currently, in traditional NR scheduling methods, frequency selection scheduling is performed based on the subband reports from the terminal. However, because the granularity of the subband channel quality indication (CQI) reports is small, it cannot accurately distinguish interference on different physical resource blocks (PRBs). When the traffic volume is large, the demand for PRBs is higher, and high-interference and low-interference PRBs will be scheduled together, which will lead to decoding failure and a decrease in throughput. Summary of the Invention

[0004] This application provides a scheduling method, device, apparatus, and storage medium for downlink interference avoidance, which solves the defect in related technologies where scheduling high-interference and low-interference PRBs together leads to decoding failure and reduced throughput. It effectively identifies and avoids downlink interference, thereby improving the throughput of the serving cell.

[0005] In a first aspect, embodiments of this application provide a scheduling method for avoiding downlink interference, including:

[0006] Determine the location of the target terminal. If the target terminal is located in the edge area of ​​the interfering cell, configure multiple Channel State Information Reference Signal (CSI-RS) measurement bandwidths. The multiple CSI-RS measurement bandwidths include the full bandwidth CSI-RS measurement bandwidth and at least one CSI-RS measurement bandwidth the size of the interfering cell.

[0007] Based on the measurement values ​​on the multiple CSI-RS measurement bandwidths reported by the target terminal, the interference level of the Physical Resource Block (PRB) corresponding to the interfering cell bandwidth is determined.

[0008] Based on the interference level of the PRB corresponding to the bandwidth of the interfering cell, resources are allocated to the amount of data to be transmitted by the target terminal.

[0009] Optionally, according to a downlink interference avoidance scheduling method according to an embodiment of this application, determining the interference level of the PRB corresponding to the interfering cell bandwidth based on the measurement values ​​on the plurality of CSI-RS measurement bandwidths reported by the target terminal includes:

[0010] Based on the measurement values ​​reported by the target terminal on the multiple CSI-RS measurement bandwidths, the difference in spectral efficiency between the full bandwidth spectral efficiency and the spectral efficiency on the interfering cell bandwidth is determined;

[0011] Based on the aforementioned spectral efficiency difference, the interference level of the PRB on the interfering cell bandwidth is determined;

[0012] The measured values ​​reported by the target terminal on the multiple CSI-RS measurement bandwidths include the spectral efficiency on the full bandwidth and the spectral efficiency on the interfering cell bandwidth.

[0013] Optionally, according to one embodiment of the downlink interference avoidance scheduling method of this application, determining the interference level of the PRB on the interfering cell bandwidth based on the spectral efficiency difference includes one of the following:

[0014] If the spectral efficiency difference is greater than a preset high interference threshold, then the interference level of the PRB on the interference cell bandwidth is determined to be a high interference level.

[0015] If the spectral efficiency difference is less than a preset high interference threshold and greater than a preset medium interference threshold, then the interference level of the PRB corresponding to the interference cell bandwidth is determined to be a medium interference level.

[0016] If the spectral efficiency difference is less than the preset interference threshold, then the interference level of the PRB corresponding to the interference cell bandwidth is determined to be low interference level.

[0017] Optionally, according to a scheduling method for downlink interference avoidance according to an embodiment of this application, the step of allocating resources for the amount of data to be transmitted by the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interfering cell includes:

[0018] Based on the interference level of the PRB corresponding to the bandwidth of the interfering cell, resource sequences are generated for PRBs with different interference levels.

[0019] Determine the amount of data that each resource sequence can hold;

[0020] Resource allocation is performed based on the amount of data to be transmitted from the target terminal and the amount of data that each resource sequence can accommodate.

[0021] The resource sequence includes at least one of the following: a medium interference level resource sequence and a low interference level resource sequence.

[0022] Optionally, for the downlink interference avoidance scheduling method according to an embodiment of the present application, the resource allocation based on the amount of data to be transmitted of the target terminal and the amount of data that each resource sequence can accommodate includes one of the following:

[0023] If the amount of data to be transmitted of the target terminal is less than the amount of data that the low interference level resource sequence can accommodate, select the required PRBs from the low interference level resource sequence as the final resources;

[0024] If the amount of data to be transmitted of the target terminal is greater than the amount of data that the low interference level resource sequence can accommodate and less than the amount of data that the medium interference level resource sequence can accommodate, select the required PRBs from the medium interference level resource sequence as the final resources;

[0025] If the amount of data to be transmitted of the target terminal is greater than the amount of data that the low interference level resource sequence can accommodate, greater than the amount of data that the medium interference level resource sequence can accommodate, and the amount of data that the low interference level resource sequence can accommodate is greater than the amount of data that the medium interference level resource sequence can accommodate, then use all the PRBs included in the low interference level resource sequence as the final resources;

[0026] If the amount of data to be transmitted of the target terminal is greater than the amount of data that the low interference level resource sequence can accommodate, greater than the amount of data that the medium interference level resource sequence can accommodate, and the amount of data that the medium interference level resource sequence can accommodate is greater than the amount of data that the low interference level resource sequence can accommodate, then use all the PRBs included in the medium interference level resource sequence as the final resources.

[0027] [[ID=十七]]Optionally, for the downlink interference avoidance scheduling method according to an embodiment of the present application, the determination of the position of the target terminal includes:

[0028] According to the reference signal received power (RSRP) value of the serving cell and the RSRP value of the interference cell measured and reported by the target terminal, determine whether the first preset condition is satisfied;

[0029] If the first preset condition is satisfied, determine that the target terminal is located in the edge area of the interference cell;

[0030] If the first preset condition is not satisfied, determine that the target terminal is located in the central area of the serving cell;

[0031] Wherein, the first preset condition is:

[0032] RSRP_ServingCell < Rsrp_thr_s and RSRP_InterferenceCell > Rsrp_thr_i;

[0033] Where RSRP_ServingCell is the RSRP value of the serving cell, Rsrp_thr_s is the RSRP threshold of the serving cell, RSRP_InterferenceCell is the RSRP value of the interfering cell, and Rsrp_thr_i is the RSRP threshold of the interfering cell.

[0034] Optionally, the downlink interference avoidance scheduling method according to one embodiment of this application further includes:

[0035] If the terminal is located in the central area of ​​the serving cell, the bandwidth of the Channel State Information Reference Signal (CSI-RS) is configured to be the full bandwidth measurement bandwidth.

[0036] Secondly, embodiments of this application also provide a downlink interference avoidance scheduling device, including a memory, a transceiver, and a processor.

[0037] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0038] Determine the location of the target terminal. If the target terminal is located in the edge area of ​​the interfering cell, configure multiple Channel State Information Reference Signal (CSI-RS) measurement bandwidths. The multiple CSI-RS measurement bandwidths include the full bandwidth CSI-RS measurement bandwidth and at least one CSI-RS measurement bandwidth the size of the interfering cell.

[0039] Based on the measurement values ​​on the multiple CSI-RS measurement bandwidths reported by the target terminal, the interference level of the Physical Resource Block (PRB) corresponding to the interfering cell bandwidth is determined.

[0040] Based on the interference level of the PRB corresponding to the bandwidth of the interfering cell, resources are allocated to the amount of data to be transmitted by the target terminal.

[0041] Optionally, according to one embodiment of the downlink interference avoidance scheduling device of this application, the step of determining the interference level of the PRB corresponding to the interfering cell bandwidth based on the measurement values ​​on the plurality of CSI-RS measurement bandwidths reported by the target terminal specifically includes:

[0042] Based on the measurement values ​​reported by the target terminal on the multiple CSI-RS measurement bandwidths, the difference in spectral efficiency between the full bandwidth spectral efficiency and the spectral efficiency on the interfering cell bandwidth is determined;

[0043] Based on the aforementioned spectral efficiency difference, the interference level of the PRB on the interfering cell bandwidth is determined;

[0044] The measured values ​​reported by the target terminal on the multiple CSI-RS measurement bandwidths include the spectral efficiency on the full bandwidth and the spectral efficiency on the interfering cell bandwidth.

[0045] Optionally, according to one embodiment of the downlink interference avoidance scheduling device of this application, determining the interference level of the PRB on the interfering cell bandwidth based on the spectral efficiency difference includes one of the following:

[0046] If the spectral efficiency difference is greater than a preset high interference threshold, then the interference level of the PRB on the interference cell bandwidth is determined to be a high interference level.

[0047] If the spectral efficiency difference is less than a preset high interference threshold and greater than a preset medium interference threshold, then the interference level of the PRB corresponding to the interference cell bandwidth is determined to be a medium interference level.

[0048] If the spectral efficiency difference is less than the preset interference threshold, then the interference level of the PRB corresponding to the interference cell bandwidth is determined to be low interference level.

[0049] Optionally, according to one embodiment of the downlink interference avoidance scheduling device of this application, the allocation of resources for the amount of data to be transmitted by the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interfering cell includes:

[0050] Based on the interference level of the PRB corresponding to the bandwidth of the interfering cell, resource sequences are generated for PRBs with different interference levels.

[0051] Determine the amount of data that each resource sequence can hold;

[0052] Resource allocation is performed based on the amount of data to be transmitted from the target terminal and the amount of data that each resource sequence can accommodate.

[0053] The resource sequence includes at least one of the following: a medium interference level resource sequence and a low interference level resource sequence.

[0054] Optionally, according to one embodiment of the downlink interference avoidance scheduling device of this application, the resource allocation based on the amount of data to be transmitted from the target terminal and the amount of data that each resource sequence can accommodate includes one of the following:

[0055] If the amount of data to be transmitted by the target terminal is less than the amount of data that the low interference level resource sequence can accommodate, then the required PRB is selected from the low interference level resource sequence as the final resource.

[0056] If the data to be transmitted by the target terminal is greater than the data volume that can be accommodated by the low interference level resource sequence and less than the data volume that can be accommodated by the medium interference level resource sequence, then select the required PRBs from the medium interference level resource sequence as the final resources;

[0057] If the data to be transmitted by the target terminal is greater than the data volume that can be accommodated by the low interference level resource sequence, greater than the data volume that can be accommodated by the medium interference level resource sequence, and the data volume that can be accommodated by the low interference level resource sequence is greater than the data volume that can be accommodated by the medium interference level resource sequence, then use all the PRBs included in the low interference level resource sequence as the final resources;

[0058] If the data to be transmitted by the target terminal is greater than the data volume that can be accommodated by the low interference level resource sequence, greater than the data volume that can be accommodated by the medium interference level resource sequence, and the data volume that can be accommodated by the medium interference level resource sequence is greater than the data volume that can be accommodated by the low interference level resource sequence, then use all the PRBs included in the medium interference level resource sequence as the final resources.

[0059] Optionally, for the scheduling device for downlink interference avoidance according to an embodiment of the present application, the determining the position of the target terminal includes:

[0060] According to the reference signal receiving power RSRP value of the serving cell and the RSRP value of the interfering cell measured and reported by the target terminal, determine whether the first preset condition is satisfied;

[0061] If the first preset condition is satisfied, then determine that the target terminal is located in the edge area of the interfering cell;

[0062] If the first preset condition is not satisfied, then determine that the target terminal is located in the central area of the serving cell;

[0063] Wherein, the first preset condition is:

[0064] RSRP_ServingCell < Rsrp_thr_s and RSRP_InterferenceCell > Rsrp_thr_i;

[0065] Wherein, RSRP_ServingCell is the RSRP value of the serving cell, Rsrp_thr_s is the RSRP threshold of the serving cell, RSRP_InterferenceCell is the RSRP value of the interfering cell, and Rsrp_thr_i is the RSRP threshold of the interfering cell.

[0066] Optionally, the scheduling device for downlink interference avoidance according to an embodiment of the present application further includes:

[0067] If the terminal is located in the central area of ​​the serving cell, the bandwidth of the Channel State Information Reference Signal (CSI-RS) is configured to be the full bandwidth measurement bandwidth.

[0068] Thirdly, embodiments of this application also provide a scheduling device for avoiding downlink interference, comprising:

[0069] A configuration unit is used to determine the location of a target terminal. If the target terminal is located in the edge area of ​​an interfering cell, multiple channel state information reference signal (CSI-RS) measurement bandwidths are configured. The multiple CSI-RS measurement bandwidths include full-bandwidth CSI-RS measurement bandwidth and at least one CSI-RS measurement bandwidth the size of the interfering cell bandwidth.

[0070] The determining unit is used to determine the interference level of the physical resource block (PRB) corresponding to the interfering cell bandwidth based on the measurement values ​​on the multiple CSI-RS measurement bandwidths reported by the target terminal.

[0071] The scheduling unit is used to allocate resources for the amount of data to be transmitted by the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interfering cell.

[0072] Fourthly, embodiments of this application also provide a processor-readable storage medium storing a computer program for causing the processor to perform the steps of the downlink interference avoidance scheduling method described in the first aspect above.

[0073] The downlink interference avoidance scheduling method, device, apparatus, and storage medium provided in this application configure CSI-RS measurement bandwidth for the target terminal, determine the interference level of PRB on the interfering cell bandwidth based on the measurement values ​​on multiple CSI-RS measurement bandwidths reported by the target terminal, allocate resources for the amount of data to be transmitted by the target terminal, effectively identify and avoid downlink interference, and improve the throughput of the serving cell. Attached Figure Description

[0074] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0075] Figure 1 This is a schematic diagram illustrating the spectrum occupancy scenarios of NR and LTE in existing technologies;

[0076] Figure 2 This is a schematic diagram illustrating a scenario of downlink transmission interference at the edge UE in existing technologies;

[0077] Figure 3 This is one of the flowcharts illustrating the scheduling method for avoiding downlink interference provided in the embodiments of this application;

[0078] Figure 4 This is a schematic diagram of a scenario for determining the PRB interference level provided in an embodiment of this application;

[0079] Figure 5 This is a schematic diagram of a scenario where the UE is located in the edge region of an interfering cell, as provided in an embodiment of this application.

[0080] Figure 6 This is a schematic diagram of a scenario where the UE is located in the central area of ​​the serving cell, as provided in an embodiment of this application.

[0081] Figure 7 The second flowchart of the downlink interference avoidance scheduling method provided in this application embodiment;

[0082] Figure 8 This is a schematic diagram of the network device provided in the embodiments of this application;

[0083] Figure 9 This is a schematic diagram of the scheduling device for avoiding downlink interference provided in an embodiment of this application. Detailed Implementation

[0084] In the embodiments of this application, the term "and / or" describes the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0085] In the embodiments of this application, the term "multiple" refers to two or more, and other quantifiers are similar.

[0086] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0087] This application provides a scheduling method, device, apparatus, and storage medium for avoiding downlink interference, which solves the defect in related technologies where scheduling high-interference and low-interference PRBs together can lead to decoding failure and reduced throughput. It effectively identifies and avoids downlink interference, thereby improving the throughput of the serving cell.

[0088] The method and apparatus are based on the same concept of the application. Since the methods and apparatus solve problems in similar ways, the implementation of the apparatus and methods can refer to each other, and the repeated parts will not be described again.

[0089] The technical solutions provided in this application can be applied to various systems, especially 5G systems. For example, applicable systems include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), and 5G New Radio (NR). All of these systems include terminal equipment and network equipment. The systems may also include a core network component, such as Evolved Packet System (EPS) and 5G system (5GS).

[0090] The terminal devices involved in the embodiments of this application can be devices that provide voice and / or data connectivity to users, handheld devices with wireless connectivity, or other processing devices connected to a wireless modem. The names of the terminal devices may differ in different systems; for example, in a 5G system, a terminal device can be called User Equipment (UE). Wireless terminal devices can communicate with one or more core networks (CNs) via a Radio Access Network (RAN). Wireless terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, for example, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but is not limited to these terms in the embodiments of this application.

[0091] The network device involved in this application embodiment can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, a base station may also be called an access point, or a device in an access network that communicates with a wireless terminal device through one or more sectors on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment involved in the embodiments of this application can be a base transceiver station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a NodeB in a Wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a next generation system, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of this application. In some network structures, the network equipment may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized unit and distributed unit may be geographically separated.

[0092] When 4G and 5G are deployed together, 4G base stations (mainly in the D1 and D2 bands) are not completely decommissioned, and 5G base stations will be affected by interference from surrounding 4G base stations. NR occupies 100MHz of bandwidth, but 40MHz of this bandwidth overlaps with the two 20MHz bandwidths of LTE. Therefore, if LTE cells and NR cells have the same or overlapping coverage, they will cause serious interference to each other.

[0093] like Figure 1 As shown, the 100M bandwidth occupied by NR and the 20M bandwidth each occupied by LTE in the D1 and D2 frequency bands will conflict.

[0094] like Figure 2 As shown, due to the movement of the terminal, in the edge area, the downlink signal of LTE will interfere with UE2 at the NR edge, and the downlink signal of NR will also interfere with UE1 at the LTE edge.

[0095] In the traditional NR scheduling algorithm, based on Table 1, interference is determined according to the subband CQI reports from the terminal. Table 1 shows that there are only four levels of subband CQI reporting. For an interfering subband, the reported level is 3, indicating the presence of interference, but the severity of the interference is uncertain.

[0096] If we consider the case where Offset level > 0, the number of PRB resources that can be scheduled for the UE is relatively small. When the traffic volume is large, the UE needs to schedule more PRBs according to the needs of the service, and it cannot distinguish the interference on different PRBs. High-interference and low-interference PRBs are scheduled together, causing decoding failure and resulting in a decrease in throughput.

[0097] Table 1 Sub-band CQI Reporting

[0098] Sub-band differential CQI value Offset level 0 0 1 1 2 ≥2 3 ≤-1

[0099] To address the aforementioned technical problems, embodiments of this application provide a novel scheduling method, device, apparatus, and storage medium for avoiding downlink interference.

[0100] Figure 3 This is one of the flowcharts illustrating the downlink interference avoidance scheduling method provided in the embodiments of this application, such as... Figure 3 As shown in the embodiment of this application, a downlink interference avoidance scheduling method is provided, the execution subject of which can be a network device, and the method includes:

[0101] Step 300: Determine the location of the target terminal. If the target terminal is located in the edge area of ​​the interfering cell, configure multiple Channel State Information Reference Signals (CSI-RS) to measure bandwidth.

[0102] Among them, the Channel State Information Reference Signal (CSI-RS) is generally used for channel state information measurement. Common channel state information includes Rank Indication (RI), Precoding Matrix Indicator (PMI), CQI, or Layer Indicator (LI), etc.

[0103] Understandably, network devices first determine the location of the target terminal, judging whether the target terminal is located in the central area of ​​the serving cell or in the edge area of ​​the interfering cell.

[0104] It should be noted that the central area and the edge area are relative concepts. The central area does not mean that the terminal is located in the exact center of the serving cell.

[0105] When a UE is located in the edge area of ​​one or more different interfering cells, it indicates that the UE is being interfered with by the downlink signal of the interfering cell. Therefore, in order to determine the interference level of the PRB on the bandwidth of the interfering cell, the network device needs to configure multiple CSI-RS measurement bandwidths for the UE.

[0106] Multiple CSI-RS measurement bandwidths include the full bandwidth CSI-RS measurement bandwidth and at least one CSI-RS measurement bandwidth the size of an interfering cell.

[0107] The full bandwidth refers to the total bandwidth occupied by the serving cell where the UE is located. For example, if the serving cell of the UE is an NR cell, which occupies 100MHz of bandwidth, then the full bandwidth CSI-RS measurement bandwidth means that the CSI-RS measurement bandwidth is 100MHz. If the network device configures the full bandwidth CSI-RS measurement bandwidth for the UE, then the UE can measure the CSI-RS signal sent by the serving cell.

[0108] The interference cell bandwidth refers to the bandwidth occupied by the interfering cell. For example, if the interfering cell is an LTE cell that occupies 20MHz of bandwidth, then the CSI-RS measurement bandwidth of the interference cell bandwidth means that the CSI-RS measurement bandwidth is 20MHz. If the network device configures the UE with the CSI-RS measurement bandwidth of the interference cell bandwidth, then the UE can measure the CSI-RS signal transmitted by the interfering cell.

[0109] The CSI-RS measurement bandwidth for interfering cell bandwidth can be configured with one or more, depending on the number of interfering cells at the UE's location.

[0110] Step 301: Based on the measurement values ​​on the multiple CSI-RS measurement bandwidths reported by the target terminal, determine the interference level of the Physical Resource Block (PRB) corresponding to the interfering cell bandwidth.

[0111] The network device determines the interference level of the PRB corresponding to the interfering cell bandwidth based on the measurement values ​​on multiple CSI-RS measurement bandwidths reported by the UE.

[0112] In one implementation, the network device can obtain measurement values ​​on multiple CSI-RS measurement bandwidths through the CQI reported by the terminal.

[0113] For example, the UE measures the CSI-RS signal of the serving cell and the CSI-RS signal of the interfering cell according to the instructions of the network device, obtains the measurement value on the full bandwidth and the measurement value on the interfering cell bandwidth, and carries the measurement value on the full bandwidth and the measurement value on the interfering cell bandwidth in the CQI and reports the CQI to the network device. The network device determines the interference level of the PRB corresponding to the interfering cell bandwidth based on the multiple CSI-RS measurement bandwidth measurement values ​​reported by the UE.

[0114] PRB interference level refers to the varying degrees of interference a UE experiences with the downlink signal of an interfering cell when it is located in the edge region of the interfering cell. It reflects the interference status of the PRB on the bandwidth of the interfering cell. The PRB interference level can be classified according to different PRB interference level threshold values.

[0115] Step 302: Based on the interference level of the PRB corresponding to the bandwidth of the interfering cell, allocate resources for the amount of data to be transmitted by the target terminal.

[0116] To address the issue of simultaneous scheduling of PRBs with different interference levels in related technologies, which leads to decoding failures and reduced throughput, in this embodiment of the application, the network device allocates resources for the amount of data to be transmitted by the UE based on the interference level of the PRB corresponding to the bandwidth of the interfering cell, thereby avoiding simultaneous scheduling of PRBs with different interference levels.

[0117] Furthermore, since the current location of the UE changes in real time, the network device will obtain the UE's location in real time and instruct the UE to periodically obtain and report the measurement value according to the CSI-RS measurement bandwidth. The network device updates the interference status of the PRB corresponding to the interfering cell bandwidth according to the reporting period of the measurement value.

[0118] This application provides a scheduling method for downlink interference avoidance. By determining the terminal location, when the terminal is in the edge area of ​​an interfering cell, multiple CSI-RS measurement bandwidths are configured for the target terminal. Based on the measurement values ​​on the multiple CSI-RS measurement bandwidths reported by the target terminal, the interference level of the PRB corresponding to the interfering cell bandwidth is determined. Furthermore, resources are allocated to the amount of data to be transmitted by the target terminal based on the interference level. This method can effectively identify and avoid downlink interference and improve the throughput of the serving cell.

[0119] Based on any of the above embodiments, determining the interference level of the PRB corresponding to the interfering cell bandwidth based on the measurement values ​​on the plurality of CSI-RS measurement bandwidths reported by the target terminal includes:

[0120] Based on the measurement values ​​reported by the target terminal on the multiple CSI-RS measurement bandwidths, the difference in spectral efficiency between the full bandwidth spectral efficiency and the spectral efficiency on the interfering cell bandwidth is determined;

[0121] Based on the aforementioned spectral efficiency difference, the interference level of the PRB on the interfering cell bandwidth is determined.

[0122] The measured values ​​reported by the target terminal on the multiple CSI-RS measurement bandwidths include the spectral efficiency on the full bandwidth and the spectral efficiency on the interfering cell bandwidth.

[0123] In one embodiment, the network device obtains the corresponding spectral efficiency based on the CQI reports corresponding to multiple CSI-RS measurement bandwidths reported by the terminal, including the spectral efficiency over the full bandwidth and the spectral efficiency over the bandwidth of at least one interfering cell.

[0124] Spectral efficiency refers to the number of bits that can be transmitted per second on a unit broadband transmission channel, and is used to measure the efficiency of a system in utilizing spectrum resources.

[0125] It should be noted that the network device calculates the difference between the spectral efficiency over the entire bandwidth and the spectral efficiency over the bandwidth of each interfering cell based on the measurements reported by the UE across multiple CSI-RS measurement bandwidths. The formula is as follows:

[0126] eff_diff=eff_rpt_full-eff_rpt_high_inter

[0127] Where eff_diff represents poor spectral efficiency, eff_rpt_full represents spectral efficiency over the full bandwidth, and eff_rpt_high_inter represents spectral efficiency over the interfering cell bandwidth.

[0128] It is understandable that when the PRB on the interfering cell bandwidth is not interfered with, the spectral efficiency on the interfering cell bandwidth should be consistent with the spectral efficiency on the full bandwidth. The larger the difference in spectral efficiency between the full bandwidth and the interfering cell bandwidth, the greater the interference to the PRB on that interfering cell bandwidth; conversely, the smaller the difference, the less interference to the PRB on that interfering cell bandwidth. Therefore, the interference level of the PRB on the interfering cell bandwidth can be determined based on the difference in spectral efficiency.

[0129] This application provides a scheduling method for downlink interference avoidance. The network device obtains the spectral efficiency of the full bandwidth and the spectral efficiency of the interfering cell bandwidth by using the measurement values ​​of multiple CSI-RS measurement bandwidths reported by the UE. It further determines the spectral efficiency difference and determines the interference level of the PRB on the interfering cell bandwidth based on the spectral efficiency difference. This effectively identifies the interference of the downlink signal of the interfering cell to the UE and distinguishes the PRB interference level corresponding to different interfering cell bandwidths.

[0130] Based on any of the above embodiments, determining the interference level of the PRBs on the interfering cell bandwidth based on the difference in spectral efficiency includes one of the following:

[0131] If the difference in spectral efficiency is greater than a preset high interference threshold, determine that the interference level of the PRBs on the interfering cell bandwidth is a high interference level;

[0132] If the difference in spectral efficiency is less than the preset high interference threshold and greater than a preset medium interference threshold, determine that the interference level of the PRBs corresponding to the interfering cell bandwidth is a medium interference level;

[0133] If the difference in spectral efficiency is less than the preset medium interference threshold, determine that the interference level of the PRBs corresponding to the interfering cell bandwidth is a low interference level.

[0134] The network device determines the interference level of the PRBs corresponding to the interfering cell bandwidth based on the difference in spectral efficiency between the spectral efficiency on the full bandwidth and the spectral efficiency on the interfering cell bandwidth. The high interference threshold value thr_eff_highi and the medium interference threshold value thr_eff_midi are set respectively, and the size relationship between the spectral efficiency difference eff_diff and the high interference threshold value and the medium interference threshold value is compared respectively to determine the interference level of the PRBs on this interfering cell bandwidth, which is specifically described as follows:

[0135] If eff_diff ≥ thr_eff_highi, it means that the difference in spectral efficiency is greater than the preset high interference threshold, then determine that the interference level of the PRBs corresponding to this interfering cell bandwidth is a high interference level.

[0136] If thr_eff_midi ≤ eff_diff < thr_eff_highi, it means that the difference in spectral efficiency is less than the preset high interference threshold and greater than the preset medium interference threshold, then determine that the interference level of the PRBs corresponding to this interfering cell bandwidth is a medium interference level.

[0137] If eff_diff < thr_eff_midi, it means that the difference in spectral efficiency is less than the preset medium interference threshold, then determine that the interference level of the PRBs corresponding to this interfering cell bandwidth is a low interference level.

[0138] A downlink interference avoidance scheduling method provided by an embodiment of the present application. The network device determines the PRB interference levels corresponding to different interfering cell bandwidths by comparing the size relationship between the spectral efficiency difference value and the high interference threshold value and the medium interference threshold value. On the one hand, it identifies the interference of the downlink signal of the interfering cell to the UE, and on the other hand, it determines and differentiates the interference levels of the PRBs on the interfering cell bandwidth.

[0139] Combined with Figure 4This section explains how to determine the interference level of the PRB on the bandwidth of an interfering cell when the UE is located in the edge area of ​​the interfering cell. Figure 4 This is a schematic diagram of a scenario for determining the PRB interference level provided in an embodiment of this application.

[0140] like Figure 4 As shown, taking a 4G and 5G co-network as an example, the NR cell represents the 5G base station environment, the LTE1 cell represents the 4G D1 band base station environment, and the LTE2 cell represents the 4G D2 band base station environment. The NR cell has a bandwidth of 100MHz, while the D1 and D2 bands are both 20MHz. Typically, the 100MHz bandwidth occupied by the NR cell causes downlink interference with the D1 bandwidth occupied by the LTE1 cell and the D2 bandwidth occupied by the LTE2 cell.

[0141] In this context, UE1 represents the first terminal. When UE1 is located in the edge area of ​​the LTE1 cell, the downlink signal of the NR cell causes downlink interference to UE1 in the edge area of ​​LTE1. UE2 represents the second terminal. When UE2 is located in the center area of ​​the LTE2 cell, the NR cell does not cause interference to UE2 in the center area of ​​LTE2. UE3 represents the third terminal. When UE3 is located in the edge area of ​​the NR cell, the downlink signals of the LTE1 cell and the LTE2 cell respectively cause downlink interference to UE3 in the edge area of ​​the NR cell.

[0142] Taking UE3 as an example, the CSI-RS measurement bandwidth configured for UE3 by the network equipment includes the full bandwidth, the first interfering cell bandwidth (size D1 in LTE1 cells), and the second interfering cell bandwidth (size D2 in LTE2 cells). According to the network equipment's instructions, when UE3 reports CQI, it reports the spectral efficiency eff_rpt_full on the full bandwidth, the spectral efficiency eff_rpt_high_inter1 on the first interfering cell bandwidth, and the spectral efficiency eff_rpt_high_inter2 on the second interfering cell bandwidth, respectively.

[0143] The high interference threshold is set to thr_eff_highi = 4, and the medium interference threshold is set to thr_eff_midi = 2.

[0144] Calculate the spectral efficiency difference between the full bandwidth and the first interfering cell bandwidth, and the spectral efficiency difference between the full bandwidth and the second interfering cell bandwidth, respectively, to obtain:

[0145] eff_diff1 = (eff_rpt_full - eff_rpt_high_inter1) = 5, where eff_diff1 represents the difference in spectral efficiency between the full bandwidth and the bandwidth of the first interfering cell.

[0146] eff_diff2 = (eff_rpt_full - eff_rpt_high_inter2) = 3, where eff_diff2 represents the spectral efficiency difference between the full bandwidth and the bandwidth of the second interfering cell.

[0147] Further, the interference levels of the PRBs corresponding to different interfering cell bandwidths are determined respectively according to different spectral efficiency differences, as follows:

[0148] eff_diff1 > thr_eff_highi indicates that the interference level of the PRBs on the first interference bandwidth is a high interference level.

[0149] thr_eff_midi < eff_diff2 < thr_eff_highi indicates that the interference level of the PRBs on the second interference bandwidth is a medium interference level.

[0150] Based on any of the above embodiments, allocating resources for the amount of data to be transmitted of the target terminal according to the interference level of the PRBs corresponding to the interfering cell bandwidth includes:

[0151] Generating resource sequences for the PRBs with different interference levels respectively according to the interference level of the PRBs corresponding to the interfering cell bandwidth;

[0152] Determining the amount of data that each resource sequence can accommodate;

[0153] Allocating resources based on the amount of data to be transmitted of the target terminal and the amount of data that each resource sequence can accommodate;

[0154] Wherein, the resource sequence includes at least one of the following: medium interference level resource sequence and low interference level resource sequence.

[0155] When the UE is in the edge area of the interfering cell, the UE is interfered by the downlink signals of one or more different interfering cells. After the network device determines the interference level of the PRBs corresponding to the interfering cell bandwidth, it allocates resources for the amount of data to be transmitted of the target terminal according to this interference level. <o000344>Optionally, if the interference level of the PRBs corresponding to the interfering cell bandwidth is a high interference level, no scheduling process is performed on the PRBs corresponding to this interfering cell bandwidth;

[0157] If the interference level of the PRBs corresponding to the interfering cell bandwidth is a medium interference level, a medium interference level resource sequence is generated based on the PRBs corresponding to this interfering cell bandwidth;

[0158] If the interference level of the PRBs corresponding to the interfering cell bandwidth is a low interference level, a low interference level resource sequence is generated based on the PRBs corresponding to this interfering cell bandwidth.

[0159] Among them, the medium interference level resource sequence represents the medium interference level PRB sequence that the UE has not occupied on the bandwidth of the interfering cell, and the low interference level resource sequence represents the low interference level PRB sequence that the UE has not occupied on the bandwidth of the interfering cell.

[0160] It should be noted that the amount of data that different resource sequences generated by different PRB interference levels can accommodate is also different, and the amount of data that each resource sequence can accommodate is determined by the network equipment.

[0161] Accordingly, the amount of data that a single PRB can carry in the low-interference-level resource sequence and the medium-interference-level resource sequence are calculated respectively, and the amount of data that the low-interference-level resource sequence and the medium-interference-level resource sequence can accommodate is further calculated. The specific calculation process is as follows:

[0162] The formula for calculating the amount of data that a single PRB can carry in a low-interference-level resource sequence is:

[0163] PRB_size_lowlist=min(156,N_RE)*eff_low*v;

[0164] The formula for calculating the amount of data that a single PRB can carry in a medium-interference level resource sequence is:

[0165] PRB_size_midlist=min(156,N_RE)*eff_mid*v;

[0166] The formula for calculating the number of resource elements (REs) in a PRB for transmitting the Physical Downlink Shared Channel (PDSCH) is as follows:

[0167] N_RE=12*N_sh_symb-N_PRB_dmrs-N_PRB_oh;

[0168] Therefore, the formula for calculating the amount of data that a low-interference-level resource sequence can accommodate is:

[0169] DataV_lowlist=size(prb_low_i_list)*PRB_size_lowlist;

[0170] The formula for calculating the amount of data that a medium-interference level resource sequence can accommodate is:

[0171] DataV_midlist=size(prb_mid_i_list)*PRB_size_loswlist.

[0172] Wherein, DataV_lowlist represents the amount of data that the low-interference-level resource sequence can accommodate, DataV_midlist represents the amount of data that the medium-interference-level resource sequence can accommodate, prb_low_i_list represents the low-interference-level resource sequence, prb_mid_i_list represents the medium-interference-level resource sequence, size(prb_low_i_list) represents the total number of PRBs in the low-interference-level resource sequence, size(prb_mid_i_list) represents the total number of PRBs in the medium-interference-level resource sequence, PRB_size_lowlist represents the amount of data that a single PRB in the low-interference-level resource sequence can carry, PRB_size_midlist represents the amount of data that a single PRB in the medium-interference-level resource sequence can carry, N_RE represents the number of REs for PDSCH transmission in a PRB, eff_low represents the spectral efficiency of the PRB fitting at the low-interference level, eff_mid represents the spectral efficiency of the PRB fitting at the medium-interference level, v represents the number of streams, N_sh_symb represents the number of symbols occupied by the PDSCH, and N_PRB_dmrs represents the demodulation reference signal. The number of REs used by Signal, DMRS. N_PRB_oh represents the resource overhead of Radio Resource Control (RRC) configuration CSI-RS and Control Resource Set Coreset, which is obtained according to the RRC configuration.

[0173] Then, the network device compares the amount of data to be transmitted by the UE with the amount of data that different resource sequences can accommodate, and selects the PRB in the resource sequence that meets the requirements as the resource for transmitting the data to be transmitted by the UE.

[0174] This application provides a downlink interference avoidance scheduling method. Based on the interference level of the PRB corresponding to the bandwidth of the interfering cell, resource sequences are generated for PRBs with different interference levels. The amount of data that each resource sequence can accommodate is determined. Resource allocation is performed based on the amount of data to be transmitted by the target terminal and the amount of data that each resource sequence can accommodate. On the one hand, it can avoid scheduling high-interference-level PRBs. On the other hand, it can distinguish and schedule medium-interference-level PRBs and low-interference-level PRBs, which can effectively avoid decoding failures and improve the throughput of the serving cell.

[0175] Based on any of the above embodiments, the resource allocation based on the amount of data to be transmitted from the target terminal and the amount of data that each resource sequence can accommodate includes one of the following:

[0176] If the amount of data to be transmitted by the target terminal is less than the amount of data that the low interference level resource sequence can accommodate, then the required PRB is selected from the low interference level resource sequence as the final resource.

[0177] If the data to be transmitted by the target terminal is greater than the amount of data that the low interference level resource sequence can accommodate, but less than the amount of data that the medium interference level resource sequence can accommodate, then the required PRB is selected from the medium interference level resource sequence as the final resource.

[0178] If the data to be transmitted by the target terminal is greater than the amount of data that the low-interference-level resource sequence can accommodate, and is greater than the amount of data that the medium-interference-level resource sequence can accommodate, and the amount of data that the low-interference-level resource sequence can accommodate is greater than the amount of data that the medium-interference-level resource sequence can accommodate, then all PRBs contained in the low-interference-level resource sequence will be used as the final resources.

[0179] If the data to be transmitted by the target terminal is greater than the amount of data that the low-interference-level resource sequence can accommodate, and greater than the amount of data that the medium-interference-level resource sequence can accommodate, and the amount of data that the medium-interference-level resource sequence can accommodate is greater than the amount of data that the low-interference-level resource sequence can accommodate, then all PRBs contained in the medium-interference-level resource sequence will be used as the final resources.

[0180] To allocate resources for the amount of data to be transmitted by the UE, the network device first compares the amount of data to be transmitted by the UE with the amount of data that can be accommodated in the low-interference-level resource sequence. It determines whether a PRB in the low-interference-level resource sequence can be used as a resource for the UE's data to be transmitted, and prioritizes scheduling low-interference-level PRBs. When a low-interference-level PRB does not meet the transmission requirements, the network device compares the amount of data to be transmitted by the UE with the amount of data that can be accommodated in the medium-interference-level resource sequence. It determines whether a PRB in the medium-interference-level resource sequence can be used as a resource for the UE's data to be transmitted, and schedules medium-interference-level PRBs. When even a medium-interference-level PRB does not meet the transmission requirements, the network device compares the amount of data that can be accommodated in the low-interference-level resource sequence with the amount of data that can be accommodated in the medium-interference-level resource sequence, and selects the resource sequence with the larger data capacity as the resource for the UE's data to be transmitted.

[0181] This application provides a downlink interference avoidance scheduling method. The network device allocates the amount of data to be transmitted by the UE by comparing the amount of data to be transmitted by the UE with the amount of data that each resource sequence can accommodate. On the one hand, this avoids interference to the terminal from high-interference-level PRBs. On the other hand, it enables separate scheduling of low-interference-level PRBs and medium-interference-level PRBs, and prioritizes scheduling low-interference-level PRBs. When low-interference-level PRBs cannot meet the transmission requirements, medium-interference-level PRBs are scheduled, thereby effectively avoiding downlink interference and improving the throughput of the serving cell.

[0182] Combination Figure 5 This means that when the terminal is located in the edge area of ​​an interfering cell, resources are allocated to the amount of data to be transmitted by the terminal. Figure 5 This is a schematic diagram of a scenario where the UE is located in the edge region of an interfering cell, as provided in an embodiment of this application.

[0183] like Figure 5 As shown, {1, 2, 3, 4, 5} represent PRBs already occupied by the UE, {6, 7, 8, 9, 10} represent low-interference-level PRBs not occupied by the UE, {11, 12, 13} represent high-interference-level PRBs not occupied by the UE, and {14, 15, 16, 17, 18} represent medium-interference-level PRBs not occupied by the UE. The process by which the network device allocates resources to the amount of data to be transmitted by the UE is described below.

[0184] Among them, the medium interference level resource sequence generated based on the medium interference level PRB is prb_mid_i_list={14, 15, 16, 17, 18}, and the low interference level resource sequence generated based on the low interference level PRB is prb_low_i_list={6, 7, 8, 9, 10}, and eff_low>eff_mid.

[0185] Furthermore, size(prb_low_i_list) = size(prb_mid_i_list) = 5. Based on the calculation formula for the amount of data that different resource sequences can accommodate, the data volume of the low-interference level resource sequence is calculated as DataV_lowlist = 1000, the data volume of the medium-interference level resource sequence is DataV_midlist = 750, and the UE's data volume to be transmitted is B0_trans = 800. This meets the condition that DataV_midlist ≤ B0_trans ≤ DataV_lowlist. The required PRB is selected from the low-interference level resource sequence as the resource for the UE's data volume to be transmitted, where N_PRB = B0_trans / PRB_size_lowlist = 4. Therefore, {6, 7, 8, 9} are selected from the low-interference level resource sequence generated by the low-interference level PRB as the resource for the UE's data volume to be transmitted.

[0186] Based on any of the above embodiments, determining the location of the target terminal includes:

[0187] Based on the reference signal received power (RSRP) value of the serving cell and the RSRP value of the interfering cell measured and reported by the target terminal, it is determined whether the first preset condition is met.

[0188] If the first preset condition is met, the target terminal is determined to be located in the edge region of the interfering cell;

[0189] If the first preset condition is not satisfied, it is determined that the target terminal is located in the central area of the serving cell;

[0190] Wherein, the first preset condition is:

[0191] RSRP_ServingCell < Rsrp_thr_s and RSRP_InterferenceCell > Rsrp_thr_i;

[0192] Wherein, RSRP_ServingCell is the RSRP value of the serving cell, Rsrp_thr_s is the RSRP threshold of the serving cell, RSRP_InterferenceCell is the RSRP value of the interfering cell, and Rsrp_thr_i is the RSRP threshold of the interfering cell.

[0193] In an optional implementation manner, the specific process of obtaining the reference signal receiving power (RSRP) value of the serving cell and the RSRP value of the interfering cell reported by the UE measurement is as follows: The network device configures inter-system measurement for the UE according to the serving cell and the interfering cell where the UE is located respectively, and the UE reports the RSRP value of the serving cell and the RSRP value of the interfering cell to the network device.

[0194] Further, set the RSRP threshold value of the serving cell and the RSRP threshold value of the interfering cell, compare according to the RSRP value reported by the UE, and determine the location of the current UE. Among them, RSRP_ServingCell represents the RSRP value of the serving cell, Rsrp_thr_s represents the RSRP threshold value of the serving cell, RSRP_InterferenceCell represents the RSRP value of the interfering cell, and Rsrp_thr_i represents the RSRP threshold value of the interfering cell. It is described as follows. <000,0424>

[0195] When RSRP_ServingCell < Rsrp_thr_s and RSRP_InterferenceCell > Rsrp_thr_i, it indicates that the UE is located in the edge area of the interfering cell.

[0196] When RSRP_ServingCell ≥ Rsrp_thr_s or RSRP_InterferenceCell ≤ Rsrp_thr_i, it indicates that the UE is located in the central area of the serving cell.

[0197] This application provides a scheduling method for avoiding downlink interference. By measuring and reporting the RSRP values ​​of the serving cell and the interfering cell by the UE, and based on a first preset condition, it can accurately determine whether the UE is in the edge area of ​​the interfering cell and effectively identify the interference of the downlink signal of the interfering cell to the UE.

[0198] Based on any of the above embodiments, the downlink interference avoidance scheduling method further includes:

[0199] If the terminal is located in the central area of ​​the serving cell, the bandwidth of the Channel State Information Reference Signal (CSI-RS) is configured to be the full bandwidth measurement bandwidth.

[0200] It should be noted that when the UE is located in the central area of ​​the serving cell, it means that the UE is not affected by the downlink signal of the interfering cell. In this case, the UE is configured with the full bandwidth of CSI-RS. Therefore, it is not necessary to determine the interference level of the PRB corresponding to the bandwidth of the interfering cell. At this time, the traditional method is used to schedule the amount of data to be transmitted by the UE.

[0201] The network device generates a resource sequence based on all PRBs corresponding to the UE's full bandwidth measurement, obtains the amount of data to be transmitted by the UE, and allocates resources for the UE's data to be transmitted based on the amount of data to be transmitted and the amount of data that the resource sequence can accommodate. Here, the resource sequence represents all PRB sequences not occupied by the UE across the full bandwidth.

[0202] Further, the number of PRBs to be transmitted by the UE is calculated, where N_PRB represents the number of PRBs. The number of PRBs in this resource sequence is calculated and represented as size(prb_low_i_list).

[0203] Furthermore, when N_PRB ≤ size(prb_low_i_list), N_PRB PRBs are selected from the resource sequence as the resources required for the amount of data to be transmitted by the UE; when N_PRB > size(prb_low_i_list), all PRBs in the resource sequence are used as the resources required for the amount of data to be transmitted by the UE. Here, N_PRB represents the number of PRBs, and size(prb_low_i_list) represents the number of PRBs in the resource sequence.

[0204] This application provides a downlink interference avoidance scheduling method. When the UE is located in the central area of ​​the serving cell, the method allocates resources for the amount of data to be transmitted by the UE in a traditional manner based on the full bandwidth measurement bandwidth of the UE, thereby improving the throughput of the serving cell.

[0205] Combination Figure 6 This indicates that when the UE is located in the central area of ​​the serving cell, resources are allocated to the amount of data to be transmitted by the UE. Figure 6 This is a schematic diagram of a scheduling method for a UE located in the central area of ​​a serving cell, as provided in an embodiment of this application.

[0206] like Figure 6 As shown, {1, 2, 3, 4, 5} represent PRBs that the UE has already occupied, and {6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18} represent PRBs that the UE has not occupied.

[0207] according to Figure 6 The generated resource sequence is {6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18}, resulting in size(prb_low_i_list) = 13. The number of PRBs required by the current terminal is 4, i.e., N_PRB = 4. Therefore, N_PRB < size(prb_low_i_list), so {6, 7, 8, 9} can be selected from this resource sequence as the resources required by the UE.

[0208] Figure 7 This application provides a second flowchart illustrating a downlink interference avoidance scheduling method, as shown in the embodiments below. Figure 7 As shown in the figure, a downlink interference avoidance scheduling method provided in this application includes the following steps:

[0209] Step 700: Configure heterogeneous system measurement for the target terminal;

[0210] Step 701: Determine the location of the target terminal based on the RSRP value of the serving cell and the RSRP value of the interfering cell measured and reported by the target terminal;

[0211] Step 702: Determine whether the target terminal is located in the edge area of ​​the interfering cell;

[0212] Step 7021: When the target terminal is not located in the edge area of ​​the interfering cell, configure the full bandwidth CSI-RS measurement bandwidth for the target terminal and allocate resources for the amount of data to be transmitted by the target terminal using the traditional method.

[0213] Step 7022: When the target terminal is in the edge area of ​​the interfering cell, reconfigure multiple CSI-RS measurement bandwidths for the target terminal and execute step 703.

[0214] Step 703: Based on the measured values ​​of multiple CSI-RS measurement bandwidths reported by the target terminal, determine the interference level of the PRB on the interfering cell bandwidth;

[0215] Step 704: Allocate resources for the amount of data to be transmitted by the target terminal based on the interference level of the PRB on the interference cell bandwidth.

[0216] Figure 8 This is a schematic diagram of the structure of a network device provided in an embodiment of this application, such as... Figure 8 As shown, the network device includes a memory 820, a transceiver 800, and a processor 810.

[0217] The memory 820 is used to store computer programs; the transceiver 800 is used to send and receive data under the control of the processor 810; the processor 810 is used to read the computer program in the memory 820 and perform the following operations:

[0218] Determine the location of the target terminal. If the target terminal is located in the edge area of ​​the interfering cell, configure multiple Channel State Information Reference Signal (CSI-RS) measurement bandwidths. The multiple CSI-RS measurement bandwidths include the full bandwidth CSI-RS measurement bandwidth and at least one CSI-RS measurement bandwidth the size of the interfering cell.

[0219] Based on the measurement values ​​on the multiple CSI-RS measurement bandwidths reported by the target terminal, the interference level of the Physical Resource Block (PRB) corresponding to the interfering cell bandwidth is determined.

[0220] Resources are allocated to the amount of data to be transmitted by the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interfering cell.

[0221] Transceiver 800 is used to receive and send data under the control of processor 810.

[0222] Among them, Figure 8 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 810) and memory (memory 820). The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 800 can be multiple elements, including transmitters and receivers, providing units for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. The processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 during operation.

[0223] Optionally, the processor 810 can be a CPU (Central Processing Unit), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array), or CPLD (Complex Programmable Logic Device), and the processor can also adopt a multi-core architecture.

[0224] The processor executes any of the methods described in the embodiments of this application according to the obtained executable instructions by calling a computer program stored in memory. The processor and memory may also be physically separated.

[0225] This application provides a downlink interference avoidance scheduling device that configures CSI-RS measurement bandwidth for a target terminal, determines the interference level of the PRB corresponding to the interfering cell bandwidth based on the measured value of the CSI-RS measurement bandwidth reported by the target terminal, and further allocates resources for the amount of data to be transmitted by the target terminal, effectively identifying and avoiding downlink interference and improving the throughput of the serving cell.

[0226] Optionally, determining the interference level of the PRB corresponding to the interfering cell bandwidth based on the measurement values ​​on the multiple CSI-RS measurement bandwidths reported by the target terminal includes:

[0227] Based on the measurement values ​​reported by the target terminal on the multiple CSI-RS measurement bandwidths, the difference in spectral efficiency between the full bandwidth spectral efficiency and the spectral efficiency on the interfering cell bandwidth is determined;

[0228] Based on the aforementioned spectral efficiency difference, the interference level of the PRB on the interfering cell bandwidth is determined;

[0229] The measured values ​​reported by the target terminal on the multiple CSI-RS measurement bandwidths include the spectral efficiency on the full bandwidth and the spectral efficiency on the interfering cell bandwidth.

[0230] Optionally, determining the interference level of the PRB on the interfering cell bandwidth based on the spectral efficiency difference includes one of the following:

[0231] If the spectral efficiency difference is greater than a preset high interference threshold, then the interference level of the PRB on the interference cell bandwidth is determined to be a high interference level.

[0232] If the spectral efficiency difference is less than a preset high interference threshold and greater than a preset medium interference threshold, then the interference level of the PRB corresponding to the interference cell bandwidth is determined to be a medium interference level.

[0233] If the spectral efficiency difference is less than the preset interference threshold, then the interference level of the PRB corresponding to the interference cell bandwidth is determined to be low interference level.

[0234] Optionally, allocating resources for the amount of data to be transmitted by the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interfering cell includes:

[0235] Based on the interference level of the PRB corresponding to the bandwidth of the interfering cell, resource sequences are generated for PRBs with different interference levels.

[0236] Determine the amount of data that each resource sequence can hold;

[0237] Resource allocation is performed based on the amount of data to be transmitted from the target terminal and the amount of data that each resource sequence can accommodate.

[0238] The resource sequence includes at least one of the following: a medium interference level resource sequence and a low interference level resource sequence.

[0239] Optionally, the resource allocation based on the amount of data to be transmitted from the target terminal and the amount of data that each resource sequence can accommodate includes one of the following:

[0240] If the amount of data to be transmitted by the target terminal is less than the amount of data that the low interference level resource sequence can accommodate, then the required PRB is selected from the low interference level resource sequence as the final resource.

[0241] If the data to be transmitted by the target terminal is greater than the amount of data that the low interference level resource sequence can accommodate, but less than the amount of data that the medium interference level resource sequence can accommodate, then the required PRB is selected from the medium interference level resource sequence as the final resource.

[0242] If the data to be transmitted by the target terminal is greater than the amount of data that the low-interference-level resource sequence can accommodate, and is greater than the amount of data that the medium-interference-level resource sequence can accommodate, and the amount of data that the low-interference-level resource sequence can accommodate is greater than the amount of data that the medium-interference-level resource sequence can accommodate, then all PRBs contained in the low-interference-level resource sequence will be used as the final resources.

[0243] If the data to be transmitted by the target terminal is greater than the amount of data that the low-interference-level resource sequence can accommodate, and greater than the amount of data that the medium-interference-level resource sequence can accommodate, and the amount of data that the medium-interference-level resource sequence can accommodate is greater than the amount of data that the low-interference-level resource sequence can accommodate, then all PRBs contained in the medium-interference-level resource sequence will be used as the final resources.

[0244] Optionally, determining the location of the target terminal includes:

[0245] According to the reference signal received power (RSRP) value of the serving cell and the RSRP value of the interfering cell measured and reported by the target terminal, determine whether the first preset condition is satisfied;

[0246] If the first preset condition is satisfied, determine that the target terminal is located in the edge area of the interfering cell;

[0247] If the first preset condition is not satisfied, determine that the target terminal is located in the central area of the serving cell;

[0248] Wherein, the first preset condition is:

[0249] RSRP_ServingCell < Rsrp_thr_s and RSRP_InterferenceCell > Rsrp_thr_i;

[0250] Wherein, RSRP_ServingCell is the RSRP value of the serving cell, Rsrp_thr_s is the RSRP threshold of the serving cell, RSRP_InterferenceCell is the RSRP value of the interfering cell, and Rsrp_thr_i is the RSRP threshold of the interfering cell.

[0251] Optionally, the network device further includes:

[0252] If the terminal is located in the central area of the serving cell, configure the channel state information reference signal (CSI-RS) bandwidth as the full bandwidth measurement bandwidth.

[0253] It should be noted here that the above network device provided by the embodiments of the present invention can implement all the method steps implemented by the above method embodiments, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiments will not be specifically described in this embodiment.

[0254] Figure 9 It is a schematic diagram of a downlink interference avoidance scheduling device provided by an embodiment of the present application. As Figure 9 shown, the downlink interference avoidance scheduling device includes a configuration unit 900, a determination unit 901, and a scheduling unit 902, wherein:

[0255] The configuration unit 900 is used to determine the location of the target terminal. If the target terminal is located in the edge area of the interfering cell, configure multiple channel state information reference signal (CSI-RS) measurement bandwidths, and the multiple CSI-RS measurement bandwidths include the full bandwidth CSI-RS measurement bandwidth and at least one CSI-RS measurement bandwidth with the size of the interfering cell bandwidth;

[0256] The determining unit 901 is used to determine the interference level of the physical resource block (PRB) corresponding to the interfering cell bandwidth based on the measurement values ​​on the multiple CSI-RS measurement bandwidths reported by the target terminal.

[0257] The scheduling unit 902 is used to allocate resources for the amount of data to be transmitted by the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interfering cell.

[0258] This application provides a downlink interference avoidance scheduling device that configures CSI-RS measurement bandwidth for a target terminal, determines the interference level of the PRB corresponding to the interfering cell bandwidth based on the measured value of the CSI-RS measurement bandwidth reported by the target terminal, and further allocates resources for the amount of data to be transmitted by the target terminal, effectively identifying and avoiding downlink interference and improving the throughput of the serving cell.

[0259] Optionally, determining unit 901 is used for:

[0260] Based on the measurement values ​​reported by the target terminal on the multiple CSI-RS measurement bandwidths, the difference in spectral efficiency between the full bandwidth spectral efficiency and the spectral efficiency on the interfering cell bandwidth is determined;

[0261] Based on the aforementioned spectral efficiency difference, the interference level of the PRB on the interfering cell bandwidth is determined;

[0262] The measured values ​​reported by the target terminal on the multiple CSI-RS measurement bandwidths include the spectral efficiency on the full bandwidth and the spectral efficiency on the interfering cell bandwidth.

[0263] Optionally, determining the interference level of the PRB on the interfering cell bandwidth based on the spectral efficiency difference includes one of the following:

[0264] If the spectral efficiency difference is greater than a preset high interference threshold, then the interference level of the PRB on the interference cell bandwidth is determined to be a high interference level.

[0265] If the spectral efficiency difference is less than a preset high interference threshold and greater than a preset medium interference threshold, then the interference level of the PRB corresponding to the interference cell bandwidth is determined to be a medium interference level.

[0266] If the spectral efficiency difference is less than the preset interference threshold, then the interference level of the PRB corresponding to the interference cell bandwidth is determined to be low interference level.

[0267] Optionally, the scheduling unit 902 is used for:

[0268] Based on the interference level of the PRB corresponding to the bandwidth of the interfering cell, resource sequences are generated for PRBs with different interference levels.

[0269] Determine the amount of data that each resource sequence can hold;

[0270] Resource allocation is performed based on the amount of data to be transmitted from the target terminal and the amount of data that each resource sequence can accommodate.

[0271] The resource sequence includes at least one of the following: a medium interference level resource sequence and a low interference level resource sequence.

[0272] Optionally, the resource allocation based on the amount of data to be transmitted from the target terminal and the amount of data that each resource sequence can accommodate includes one of the following:

[0273] If the amount of data to be transmitted by the target terminal is less than the amount of data that the low interference level resource sequence can accommodate, then the required PRB is selected from the low interference level resource sequence as the final resource.

[0274] If the data to be transmitted by the target terminal is greater than the amount of data that the low interference level resource sequence can accommodate, but less than the amount of data that the medium interference level resource sequence can accommodate, then the required PRB is selected from the medium interference level resource sequence as the final resource.

[0275] If the data to be transmitted by the target terminal is greater than the amount of data that the low-interference-level resource sequence can accommodate, and is greater than the amount of data that the medium-interference-level resource sequence can accommodate, and the amount of data that the low-interference-level resource sequence can accommodate is greater than the amount of data that the medium-interference-level resource sequence can accommodate, then all PRBs contained in the low-interference-level resource sequence will be used as the final resources.

[0276] If the data to be transmitted by the target terminal is greater than the amount of data that the low-interference-level resource sequence can accommodate, and greater than the amount of data that the medium-interference-level resource sequence can accommodate, and the amount of data that the medium-interference-level resource sequence can accommodate is greater than the amount of data that the low-interference-level resource sequence can accommodate, then all PRBs contained in the medium-interference-level resource sequence will be used as the final resources.

[0277] Optionally, the configuration unit 900 is used for:

[0278] Based on the reference signal received power (RSRP) value of the serving cell and the RSRP value of the interfering cell measured and reported by the target terminal, it is determined whether the first preset condition is met.

[0279] If the first preset condition is met, the target terminal is determined to be located in the edge region of the interfering cell;

[0280] If the first preset condition is not met, then the target terminal is determined to be located in the central area of ​​the serving cell;

[0281] Among them, the first preset condition is:

[0282] RSRP_ServingCell < Rsrp_thr_s and RSRP_InterferenceCell > Rsrp_thr_i;

[0283] Among them, RSRP_ServingCell is the RSRP value of the serving cell, Rsrp_thr_s is the RSRP threshold of the serving cell, RSRP_InterferenceCell is the RSRP value of the interfering cell, and Rsrp_thr_i is the RSRP threshold of the interfering cell.

[0284] Optionally, the configuration unit 900 is further configured to:

[0285] If the terminal is located in the central area of the serving cell, configure the channel state information reference signal CSI-RS bandwidth as the full bandwidth measurement bandwidth.

[0286] It should be noted that the division of units in the embodiments of the present application is illustrative, only a logical function division, and there may be other division methods in actual implementation. In addition, in each embodiment of the present application, each functional unit may be integrated in one processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit. The above integrated unit may be implemented in the form of hardware or in the form of a software functional unit.

[0287] If the above integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, 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. The computer software product is stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the embodiments of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0288] It should be noted here that the above device provided in the embodiments of the present invention can implement all the method steps implemented in the above method embodiments and can achieve the same technical effects. Here, the same parts and beneficial effects as those in the method embodiments in this embodiment will not be specifically described again.

[0289] On the other hand, embodiments of this application also provide a processor-readable storage medium storing a computer program for causing the processor to execute the methods provided in the above embodiments, including:

[0290] Determine the location of the target terminal. If the target terminal is located in the edge area of ​​the interfering cell, configure multiple Channel State Information Reference Signal (CSI-RS) measurement bandwidths. The multiple CSI-RS measurement bandwidths include the full bandwidth CSI-RS measurement bandwidth and at least one CSI-RS measurement bandwidth the size of the interfering cell.

[0291] Based on the measurement values ​​on the multiple CSI-RS measurement bandwidths reported by the target terminal, the interference level of the Physical Resource Block (PRB) corresponding to the interfering cell bandwidth is determined.

[0292] Based on the interference level of the PRB corresponding to the bandwidth of the interfering cell, resources are allocated to the amount of data to be transmitted by the target terminal.

[0293] The processor-readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to magnetic memory (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO)), optical memory (e.g., CD, DVD, BD, HVD), and semiconductor memory (e.g., ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)).

[0294] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage and optical storage) containing computer-usable program code.

[0295] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0296] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0297] These processors can execute instructions that can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable device for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0298] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A scheduling method for avoiding downlink interference, characterized in that, include: Determine the location of the target terminal. If the target terminal is located in the edge area of ​​the interfering cell, configure multiple Channel State Information Reference Signal (CSI-RS) measurement bandwidths. The multiple CSI-RS measurement bandwidths include the full bandwidth CSI-RS measurement bandwidth and at least one CSI-RS measurement bandwidth the size of the interfering cell. Based on the measurement values ​​on the multiple CSI-RS measurement bandwidths reported by the target terminal, the interference level of the Physical Resource Block (PRB) corresponding to the interfering cell bandwidth is determined. Based on the interference level of the PRB corresponding to the bandwidth of the interfering cell, resources are allocated to the amount of data to be transmitted by the target terminal. The step of determining the interference level of the PRB corresponding to the interfering cell bandwidth based on the measurement values ​​on the multiple CSI-RS measurement bandwidths reported by the target terminal includes: Based on the measurement values ​​reported by the target terminal on the multiple CSI-RS measurement bandwidths, the difference in spectral efficiency between the full bandwidth spectral efficiency and the spectral efficiency on the interfering cell bandwidth is determined; Based on the aforementioned spectral efficiency difference, the interference level of the PRB on the interfering cell bandwidth is determined; The measured values ​​reported by the target terminal on the multiple CSI-RS measurement bandwidths include the spectral efficiency on the full bandwidth and the spectral efficiency on the interfering cell bandwidth.

2. The scheduling method for avoiding downlink interference according to claim 1, characterized in that, The determination of the interference level of the PRB on the interfering cell bandwidth based on the spectral efficiency difference includes one of the following: If the spectral efficiency difference is greater than a preset high interference threshold, then the interference level of the PRB on the interference cell bandwidth is determined to be a high interference level. If the spectral efficiency difference is less than a preset high interference threshold and greater than a preset medium interference threshold, then the interference level of the PRB corresponding to the interference cell bandwidth is determined to be a medium interference level. If the spectral efficiency difference is less than the preset interference threshold, then the interference level of the PRB corresponding to the interference cell bandwidth is determined to be low interference level.

3. The scheduling method for avoiding downlink interference according to claim 1, characterized in that, The allocation of resources for the amount of data to be transmitted by the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interfering cell includes: Based on the interference level of the PRB corresponding to the bandwidth of the interfering cell, resource sequences are generated for PRBs with different interference levels. Determine the amount of data that each resource sequence can hold; Resource allocation is performed based on the amount of data to be transmitted from the target terminal and the amount of data that each resource sequence can accommodate. The resource sequence includes at least one of the following: a medium interference level resource sequence and a low interference level resource sequence.

4. The scheduling method for avoiding downlink interference according to claim 3, characterized in that, The resource allocation based on the amount of data to be transmitted from the target terminal and the amount of data that each resource sequence can accommodate includes one of the following: If the amount of data to be transmitted by the target terminal is less than the amount of data that the low interference level resource sequence can accommodate, then the required PRB is selected from the low interference level resource sequence as the final resource. If the data to be transmitted by the target terminal is greater than the amount of data that the low interference level resource sequence can accommodate, but less than the amount of data that the medium interference level resource sequence can accommodate, then the required PRB is selected from the medium interference level resource sequence as the final resource. If the data to be transmitted by the target terminal is greater than the data volume that can be accommodated by the low interference level resource sequence, and greater than the data volume that can be accommodated by the medium interference level resource sequence, and the data volume that can be accommodated by the low interference level resource sequence is greater than the data volume that can be accommodated by the medium interference level resource sequence, then all PRBs included in the low interference level resource sequence are used as the final resources; If the data to be transmitted by the target terminal is greater than the data volume that can be accommodated by the low interference level resource sequence, and greater than the data volume that can be accommodated by the medium interference level resource sequence, and the data volume that can be accommodated by the medium interference level resource sequence is greater than the data volume that can be accommodated by the low interference level resource sequence, then all PRBs included in the medium interference level resource sequence are used as the final resources.

5. The scheduling method for avoiding downlink interference according to claim 1, characterized in that, The determining the position of the target terminal includes: According to the reference signal receiving power RSRP value of the serving cell and the RSRP value of the interfering cell measured and reported by the target terminal, determining whether the first preset condition is satisfied; If the first preset condition is satisfied, determining that the target terminal is located in the edge area of the interfering cell; If the first preset condition is not satisfied, determining that the target terminal is located in the central area of the serving cell; Wherein, the first preset condition is: RSRP_ServingCell < Rsrp_thr_s and RSRP_InterferenceCell > Rsrp_thr_i; Wherein, RSRP_ServingCell is the RSRP value of the serving cell, Rsrp_thr_s is the RSRP threshold of the serving cell, RSRP_InterferenceCell is the RSRP value of the interfering cell, and Rsrp_thr_i is the RSRP threshold of the interfering cell.

6. The scheduling method for avoiding downlink interference according to claim 1, characterized in that, It further includes: If the terminal is located in the central area of the serving cell, configuring the channel state information reference signal CSI-RS bandwidth as the full bandwidth measurement bandwidth.

7. A downlink interference avoidance scheduling device, including a memory, a transceiver, and a processor: The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor. The processor is configured to read the computer program in the memory and perform the following operations: Determine the position of the target terminal. If the target terminal is located in the edge area of the interfering cell, configure multiple channel state information reference signal CSI-RS measurement bandwidths, and the multiple CSI-RS measurement bandwidths include the full bandwidth CSI-RS measurement bandwidth and at least one CSI-RS measurement bandwidth with the size of the interfering cell bandwidth; Based on the measurement values on the multiple CSI-RS measurement bandwidths reported by the target terminal, determine the interference level of the physical resource blocks PRBs corresponding to the interfering cell bandwidth; Based on the interference level of the PRBs corresponding to the interfering cell bandwidth, allocate resources for the data volume to be transmitted by the target terminal; The determining the interference level of the PRBs corresponding to the interfering cell bandwidth based on the measurement values on the multiple CSI-RS measurement bandwidths reported by the target terminal specifically includes: Based on the measurement values ​​reported by the target terminal on the multiple CSI-RS measurement bandwidths, the difference in spectral efficiency between the full bandwidth spectral efficiency and the spectral efficiency on the interfering cell bandwidth is determined; Based on the aforementioned spectral efficiency difference, the interference level of the PRB on the interfering cell bandwidth is determined; The measured values ​​reported by the target terminal on the multiple CSI-RS measurement bandwidths include the spectral efficiency on the full bandwidth and the spectral efficiency on the interfering cell bandwidth.

8. The downlink interference avoidance scheduling device according to claim 7, characterized in that, The determination of the interference level of the PRB on the interfering cell bandwidth based on the spectral efficiency difference includes one of the following: If the spectral efficiency difference is greater than a preset high interference threshold, then the interference level of the PRB on the interference cell bandwidth is determined to be a high interference level. If the spectral efficiency difference is less than a preset high interference threshold and greater than a preset medium interference threshold, then the interference level of the PRB corresponding to the interference cell bandwidth is determined to be a medium interference level. If the spectral efficiency difference is less than the preset interference threshold, then the interference level of the PRB corresponding to the interference cell bandwidth is determined to be low interference level.

9. The downlink interference avoidance scheduling device according to claim 7, characterized in that, The allocation of resources for the amount of data to be transmitted by the target terminal based on the interference level of the PRB corresponding to the bandwidth of the interfering cell includes: Based on the interference level of the PRB corresponding to the bandwidth of the interfering cell, resource sequences are generated for PRBs with different interference levels. Determine the amount of data that each resource sequence can hold; Resource allocation is performed based on the amount of data to be transmitted from the target terminal and the amount of data that each resource sequence can accommodate. The resource sequence includes at least one of the following: a medium interference level resource sequence and a low interference level resource sequence.

10. The scheduling device for avoiding downlink interference according to claim 9, characterized in that, The resource allocation based on the amount of data to be transmitted from the target terminal and the amount of data that each resource sequence can accommodate includes one of the following: If the amount of data to be transmitted by the target terminal is less than the amount of data that the low interference level resource sequence can accommodate, then the required PRB is selected from the low interference level resource sequence as the final resource. If the data to be transmitted by the target terminal is greater than the amount of data that the low interference level resource sequence can accommodate, but less than the amount of data that the medium interference level resource sequence can accommodate, then the required PRB is selected from the medium interference level resource sequence as the final resource. If the data to be transmitted by the target terminal is greater than the amount of data that the low-interference-level resource sequence can accommodate, and is greater than the amount of data that the medium-interference-level resource sequence can accommodate, and the amount of data that the low-interference-level resource sequence can accommodate is greater than the amount of data that the medium-interference-level resource sequence can accommodate, then all PRBs contained in the low-interference-level resource sequence will be used as the final resources. If the data to be transmitted by the target terminal is greater than the amount of data that the low-interference-level resource sequence can accommodate, and greater than the amount of data that the medium-interference-level resource sequence can accommodate, and the amount of data that the medium-interference-level resource sequence can accommodate is greater than the amount of data that the low-interference-level resource sequence can accommodate, then all PRBs contained in the medium-interference-level resource sequence will be used as the final resources.

11. The downlink interference avoidance scheduling device according to claim 7, characterized in that, Determining the location of the target terminal includes: Based on the reference signal received power (RSRP) value of the serving cell and the RSRP value of the interfering cell measured and reported by the target terminal, determine whether the first preset condition is satisfied; If the first preset condition is satisfied, determine that the target terminal is located in the edge area of the interfering cell; If the first preset condition is not satisfied, determine that the target terminal is located in the central area of the serving cell; Wherein, the first preset condition is: RSRP_ServingCell < Rsrp_thr_s and RSRP_InterferenceCell > Rsrp_thr_i; Where, RSRP_ServingCell is the RSRP value of the serving cell, Rsrp_thr_s is the RSRP threshold of the serving cell, RSRP_InterferenceCell is the RSRP value of the interfering cell, and Rsrp_thr_i is the RSRP threshold of the interfering cell.

12. The downlink interference avoidance scheduling device according to claim 7, characterized in that, It further includes: If the terminal is located in the central area of the serving cell, configure the channel state information reference signal (CSI-RS) bandwidth as the full bandwidth measurement bandwidth.

13. A scheduling device for avoiding downlink interference, characterized in that, It includes: A configuration unit, configured to determine the location of the target terminal. If the target terminal is located in the edge area of the interfering cell, configure multiple CSI-RS measurement bandwidths, and the multiple CSI-RS measurement bandwidths include the full bandwidth CSI-RS measurement bandwidth and at least one CSI-RS measurement bandwidth with the size of the interfering cell bandwidth; A determination unit, configured to determine the interference level of the physical resource block (PRB) corresponding to the interfering cell bandwidth based on the measurement values on the multiple CSI-RS measurement bandwidths reported by the target terminal; A scheduling unit, configured to allocate resources for the data volume to be transmitted by the target terminal based on the interference level of the PRB corresponding to the interfering cell bandwidth; The determining the interference level of the PRB corresponding to the interfering cell bandwidth based on the measurement values on the multiple CSI-RS measurement bandwidths reported by the target terminal includes: Based on the measurement values on the multiple CSI-RS measurement bandwidths reported by the target terminal, determine the spectral efficiency difference between the spectral efficiency on the full bandwidth and the spectral efficiency on the interfering cell bandwidth; Based on the spectral efficiency difference, determine the interference level of the PRB on the interfering cell bandwidth; Wherein, the measurement values on the multiple CSI-RS measurement bandwidths reported by the target terminal include the spectral efficiency on the full bandwidth and the spectral efficiency on the interfering cell bandwidth.

14. A processor-readable storage medium, characterized in that, The processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the downlink interference avoidance scheduling method according to any one of claims 1 to 6.

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