Communication method and apparatus, storage medium, network device, and communication system

Abstract

The present disclosure relates to the technical field of mobile communication, and in particular to a communication method and device, a storage medium, a network device and a communication system. The method comprises: a first network device obtaining an uplink resource request of a terminal device; and if a current cross-link interference intensity of the terminal device is less than a preset threshold value, performing a first strategy to allocate an uplink transmission resource to the terminal device. The present scheme realizes accurate execution of a resource allocation strategy according to the intensity of the cross-link interference currently suffered by the terminal device, and maximally reduces the influence of the cross-link interference on the terminal device.

Description

Technical Field

[0001] This disclosure relates to the field of mobile communication technology, specifically to a communication method, a communication device, a storage medium, a network device, and a communication system. Background Technology

[0002] As a key technology for next-generation wireless networks, 5G features support for ultra-wideband and massive connectivity. To further improve 5G spectrum efficiency and meet the service demands of massive 5G terminals, NR (New Radio) supports duplex flexibility. Specifically, duplex flexibility (i.e., flexible cross-link spectrum sharing) can improve spectrum efficiency by increasing spectrum utilization.

[0003] In existing technologies, duplex flexibility is a mechanism that dynamically (dynamic TDD (Time Division Duplex)) or semi-static (semi-static TDD) allocates time / frequency resources based on DL (Downlink) or UL (Uplink) service requirements, thereby improving the utilization efficiency of time / frequency resources. However, duplex flexibility can lead to strong cross-link interference (CLI) and may also cause serious coexistence problems between nodes within and / or between operators. Specifically, CLI occurs in scenarios where neighboring cells have different time slots. For example, one type is terminal-to-terminal interference, such as... Figure 1 As shown, if the first terminal in the first cell schedules uplink transmission and the second terminal in the second cell schedules downlink transmission, the uplink transmission of the first terminal will interfere with the downlink reception of the second terminal due to the close proximity of the two terminals; this is known as UE-to-UE interference. Another type is base station-to-base station interference, such as... Figure 2 As shown, if the first base station schedules uplink while the second base station schedules downlink, the downlink of the second base station will interfere with the uplink of the first terminal because the transmission power of the base station is much higher than that of the terminal; that is, interference between base stations (gNB to gNB).

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this disclosure is to provide a communication method, a communication device, a storage medium, a network device, and a communication system that can coordinate and schedule network resources appropriately according to their own business needs on the affected side and the instigating side when cross-link interference occurs, thereby reducing cross-link interference while ensuring business needs, and thus at least to some extent overcoming the defects caused by the limitations and defects of related technologies.

[0006] Other features and advantages of this disclosure will become apparent from the following detailed description, or may be learned in part from practice of this disclosure.

[0007] According to a first aspect of this disclosure, a communication method is provided, comprising: The first network device obtains the uplink resource request from the terminal device; If the current cross-link interference intensity of the terminal device is less than a preset threshold, the first strategy is executed to allocate uplink transmission resources to the terminal device.

[0008] In one exemplary embodiment of this disclosure, the method further includes: If the current cross-link interference intensity is greater than a preset threshold, the second strategy is executed to configure the uplink transmission resources for the terminal device; wherein, the second strategy includes filtering time slots that have not suffered cross-link interference.

[0009] In one exemplary embodiment of this disclosure, the execution of the second strategy to configure the uplink resources for the terminal device includes: Select a time slot other than the uplink time slot corresponding to the target downlink time slot, and / or a time slot other than the uplink time slot corresponding to the target special time slot, and configure the uplink transmission resources.

[0010] In one exemplary embodiment of this disclosure, the method further includes: Obtain the uplink transmission parameters of the terminal device based on the uplink transmission resources; When the uplink transmission parameters do not meet the preset service requirements, a third strategy is executed to configure the uplink transmission resources for the terminal device; or If configuring the uplink transmission resources for the terminal device according to the second strategy fails, the third strategy is executed to configure the uplink transmission resources for the terminal device. The third strategy includes negotiating with a related second network device to stop or reduce cross-link interference.

[0011] In one exemplary embodiment of this disclosure, the execution of the third strategy to configure the uplink transmission resources for the terminal device includes: Send an interference avoidance request to the second network device; Obtain the avoidance confirmation information fed back by the second network device, and configure the uplink transmission resources for the terminal device based on the avoidance confirmation information.

[0012] In one exemplary embodiment of this disclosure, the interference avoidance request includes any one or a combination of any number of the following: service priority information of the terminal device, cross-link interference indicator, time slot interference information, beam negotiation information, and time negotiation information.

[0013] In one exemplary embodiment of this disclosure, the service priority information includes any one or a combination of any of the following: service demand information, traffic bit rate parameters, and maximum packet loss rate parameters.

[0014] In one exemplary embodiment of this disclosure, the avoidance confirmation information includes: first avoidance confirmation information or second avoidance confirmation information; wherein, the first avoidance information includes negotiation confirmation information of complete agreement; and the second avoidance confirmation information includes negotiation confirmation information of partial agreement.

[0015] In one exemplary embodiment of this disclosure, the method further includes: obtaining avoidance request confirmation information fed back by the second network device, and executing a second strategy to configure the uplink transmission resources for the terminal device; wherein the avoidance request confirmation information includes a message terminating the negotiated time slot.

[0016] In one exemplary embodiment of this disclosure, the avoidance request confirmation information includes any one or a combination of any of the following: a shutdown indicator, a beam identifier, and time information.

[0017] In one exemplary embodiment of this disclosure, the execution of the third strategy to configure the uplink transmission resources for the terminal device includes: Send an interference avoidance request to the second network device; Obtain the avoidance confirmation information fed back by the second network device; wherein, the avoidance information includes third avoidance confirmation information carrying avoidance rejection information; The uplink transmission resources are configured for the terminal device according to the fourth strategy; wherein the fourth strategy includes selecting time slots that have not suffered cross-link interference, and / or selecting a combination of time slots whose total cross-link interference intensity is less than a preset threshold.

[0018] In one exemplary embodiment of this disclosure, the avoidance confirmation information includes any one or a combination of any of the following: a confirmation shutdown indicator, a beam negotiation result, and a time negotiation result.

[0019] In one exemplary embodiment of this disclosure, the method further includes: The first network device acquires the resource configuration information of the second network device at a preset period, so as to determine the association relationship between the first network device and the second network device based on the resource configuration information.

[0020] In one exemplary embodiment of this disclosure, the resource configuration information of the network device includes: subcarrier spacing, and any one or any combination of parameters based on TDD UL-DL mode: DL-UL transmission period, number of downlink time slots, number of downlink symbols, number of uplink time slots, and number of uplink symbols.

[0021] In one exemplary embodiment of this disclosure, the method further includes: Obtain network monitoring data within a preset period; wherein, the network monitoring data includes measurement information and terminal association data constructed from data transmission information reported by terminal devices in each cell corresponding to the first network device; Based on the network monitoring data and the association between the first network device and the second network device, it is determined whether the terminal device has cross-link interference.

[0022] In one exemplary embodiment of this disclosure, the measurement information includes: a measurement identifier; and corresponding to the serving cell measurement object: a serving cell identifier, a serving cell measurement result, and a beam measurement result; wherein, the serving cell measurement result includes any one or any combination of wireless signal strength, wireless signal received power, and signal-to-interference-plus-noise ratio parameters; the beam measurement result includes: beam measurement result based on SS / PBCH block, and / or beam measurement result based on CSI-RS.

[0023] In an exemplary embodiment of this disclosure, the terminal-associated data includes at least: uplink transmission resource configuration data, measurement configuration information, and uplink data transmission rate; wherein, the uplink transmission resource configuration data includes time-domain resources and frequency-domain resources; the time-domain resources include uplink transmission time slots, type information, identification information, and length information; the frequency-domain resources include: resource allocation type information and frequency-domain resource configuration information; the measurement configuration information includes: measurement identifier, serving cell measurement object, serving cell identifier corresponding to the serving cell measurement object, serving cell measurement result, and beam measurement result; wherein, the serving cell measurement result includes: any one or any combination of wireless signal strength, wireless signal received power, and signal-to-interference-plus-noise ratio parameters; the beam measurement result includes: beam measurement result based on SS / PBCH block, and / or beam measurement result based on CSI-RS.

[0024] In one exemplary embodiment of this disclosure, determining whether the terminal device experiences cross-link interference based on the network monitoring data and the association relationship between the first network device and the second network device includes: Based on the resource configuration information, signal strength data, and data transmission rate data of the first terminal device in the first cell and the second terminal device in the second cell corresponding to the first network device, a data comparison is performed to determine whether the first terminal device or the second terminal device is subject to cross-link interference from the second network device.

[0025] In one exemplary embodiment of this disclosure, the first network device interacts with the second network device via the Xn interface.

[0026] In an exemplary embodiment of this disclosure, the uplink transmission resources allocated to the terminal device include: uplink frame structure configuration, uplink transmission resource configuration information, and uplink carrier configuration configured in TDD mode; wherein, the uplink transmission resource configuration information includes: time domain resources and frequency domain resources; the time domain resources include uplink transmission time slots, resource allocation type, and duration; the frequency domain resources include: resource allocation type information and frequency domain resource configuration information.

[0027] According to a second aspect of this disclosure, a communication method is provided, comprising: The second network device receives the interference avoidance request from the first network device; The system evaluates whether the execution result of the interference avoidance request meets the current business requirements, generates feedback information based on the evaluation result, and sends it to the first network device.

[0028] In one exemplary embodiment of this disclosure, the interference avoidance request includes any one or a combination of any number of the following: service priority information of the terminal device, cross-link interference indicator, time slot interference information, beam negotiation information, and time negotiation information.

[0029] In one exemplary embodiment of this disclosure, evaluating whether the execution result of the interference avoidance request meets the current business requirements includes: Based on the resource configuration information, measurement information, and data transmission information of the terminal device corresponding to the second network device, it is determined whether the current service requirements are met after executing the interference avoidance request, and the feedback information is generated based on the determination result.

[0030] In one exemplary embodiment of this disclosure, the feedback information includes: a first avoidance confirmation information, a second avoidance confirmation information, or a third avoidance confirmation information; wherein, the first avoidance information includes negotiation confirmation information of complete agreement; the second avoidance confirmation information includes negotiation confirmation information of partial agreement; and the third avoidance confirmation information includes avoidance refusal information.

[0031] In one exemplary embodiment of this disclosure, the avoidance confirmation information includes any one or a combination of any of the following: a confirmation shutdown indicator, a beam negotiation result, and a time negotiation result.

[0032] In one exemplary embodiment of this disclosure, when the second network device executes the interference avoidance request, the method further includes: Obtain current service monitoring data; if, based on the current service monitoring data, it is determined that the current network resources cannot meet the updated service requirements, stop executing the interference avoidance request and reallocate network resources according to the current service monitoring data; and Send a clearance request confirmation message to the first network device.

[0033] In one exemplary embodiment of this disclosure, the avoidance request confirmation information includes any one or a combination of any of the following: a shutdown indicator, a beam identifier, and time information.

[0034] In one exemplary embodiment of this disclosure, the second network device interacts with the first network device via the Xn interface.

[0035] According to a third aspect of this disclosure, a communication device is provided, comprising: The uplink resource request acquisition module is used by the first network device to acquire the uplink resource request of the terminal device. The first strategy execution module is used to execute the first strategy to allocate uplink transmission resources to the terminal device if the current cross-link interference intensity of the terminal device is less than a preset threshold value.

[0036] According to a fourth aspect of this disclosure, a communication device is provided, comprising: An interference avoidance request receiving module is used for the second network device to obtain the interference avoidance request from the first network device. The feedback information processing module is used to evaluate whether the execution result of the interference avoidance request meets the current business requirements, generate feedback information based on the evaluation result, and send it to the first network device.

[0037] According to a fifth aspect of this disclosure, a storage medium is provided, including a program or instructions that, when executed, implement the communication method as described in any of the above embodiments.

[0038] According to a sixth aspect of this disclosure, a network device is provided, comprising: Processor; and Memory for storing the executable instructions of the processor; The processor is configured to execute the above-described communication method by executing the executable instructions.

[0039] According to a seventh aspect of this disclosure, a communication system is provided, including a first network device and a second network device as described in the above embodiments.

[0040] In one embodiment of the communication method disclosed herein, a threshold value for cross-link interference is pre-set on the network device side. This allows the network device to determine whether the terminal device is currently experiencing cross-link interference and the intensity of such interference when it receives an uplink resource request from the terminal device. If the network device determines that the current cross-link interference is less than the preset threshold value (i.e., there is no cross-link interference or the interference intensity is low enough not to affect data interaction between the network device and the terminal device), a first strategy is executed to allocate uplink transmission resources to the terminal device in a conventional manner. This achieves accurate execution of resource allocation strategies based on the intensity of the cross-link interference currently experienced by the terminal device, minimizing the impact of cross-link interference on the terminal device.

[0041] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0042] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0043] Figure 1 This diagram illustrates a communication system architecture with cross-link interference between terminals in the prior art. Figure 2 This diagram illustrates a communication system architecture with cross-link interference between base stations in the prior art. Figure 3 The schematic diagram illustrates a communication method according to an exemplary embodiment of the present disclosure; Figure 4 The illustration schematically depicts a communication system architecture according to an exemplary embodiment of the present disclosure; Figure 5This diagram illustrates a method for determining whether cross-link interference exists in an exemplary embodiment of this disclosure. Figure 6 This illustration schematically depicts a communication method for implementing a second strategy according to an exemplary embodiment of the present disclosure; Figure 7 This schematic diagram illustrates a time slot distribution in an exemplary embodiment of the present disclosure; Figure 8 This illustration schematically depicts a communication method for implementing a third strategy according to an exemplary embodiment of the present disclosure; Figure 9 This schematic diagram illustrates another communication method in an exemplary embodiment of the present disclosure; Figure 10 A timing diagram illustrating a communication method according to an exemplary embodiment of the present disclosure is shown schematically. Figure 11 This schematic diagram illustrates a communication device according to an exemplary embodiment of the present disclosure; Figure 12 This schematic diagram illustrates another communication device in an exemplary embodiment of the present disclosure; Figure 13 This schematic diagram illustrates the composition of a network device according to an exemplary embodiment of the present disclosure; Figure 14 The schematic diagram illustrates a storage medium according to an exemplary embodiment of the present disclosure. Detailed Implementation

[0044] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0045] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0046] In related technologies, CLI (Cross Link Interference) measurements can be performed to address the problem of serial link interference. For example, base stations can obtain CLI interference information between terminals by using SRS and RSSI reported by the terminals. Existing technologies offer some CLI interference avoidance schemes to address the real-world CLI problem. For instance, after identifying the interference source base station of the macro station, interference avoidance strategies such as power control can be implemented, such as actively reducing the transmit power of the service channel in the time slot of interference to reduce interference; and considering static SSB beam-level power adjustment (different beams in different time slots); finally, static power adjustment can also be considered. However, while flexible duplexing can improve the flexibility of time-frequency resource scheduling and increase system capacity, dynamic deployment can lead to severe cross-link interference. Currently, although the interfering and affected sides can reduce cross-link interference through power control, this is a static coordination mechanism. The interfering and affected stations cannot dynamically coordinate and adjust their cross-link interference avoidance strategies according to their own service needs, resulting in resource waste and failing to improve system throughput. To further improve the performance of flexible duplex, the following issues remain in the current standards and implementations: Lack of cross-link interference avoidance coordination messages: Currently, the Xn message lacks interference avoidance coordination information for cross-link interference. The interfering side and the affected side cannot more flexibly coordinate to avoid cross-link interference through the Xn message, thus suppressing system performance. Lack of adaptive cross-link interference avoidance mechanisms: Currently, the affected side lacks an adaptive interference avoidance mechanism, and cannot dynamically determine which interference avoidance strategy to adopt based on its own business needs. Lack of more flexible cross-link interference avoidance mechanisms: Currently, the interfering side lacks a more dynamic cross-link interference suppression mechanism. After determining the cross-link interference avoidance strategy, the interfering side cannot dynamically adjust the interference avoidance mechanism according to changes in traffic volume.

[0047] To address the shortcomings of the aforementioned technical solutions, this example embodiment first provides a communication method that can be applied to application scenarios with CLI communication systems, such as the flexible duplex system described above. This method enables both the affected and the interfering sides to adopt appropriate cross-link interference suppression methods according to their own business needs, thereby effectively reducing cross-link interference, improving spectrum efficiency, and reducing operating costs.

[0048] refer to Figure 3 As shown, the communication method described above may include the following steps: S11, the first network device obtains the uplink resource request from the terminal device; S12, if the current cross-link interference intensity of the terminal device is less than a preset threshold, the first strategy is executed to allocate uplink transmission resources to the terminal device.

[0049] The communication method provided in this example embodiment, on the one hand, by pre-configuring a threshold value for the cross-link interference intensity for the network device, can accurately determine whether the terminal device is currently experiencing cross-link interference and the degree of impact of the cross-link interference intensity on the terminal device when the network device receives the current uplink resource request from the terminal device. On the other hand, by determining that the current cross-link interference of the terminal device is less than the preset threshold value, that is, when there is no cross-link interference or the interference intensity is low and does not affect the data interaction between the network device and the terminal device, the first strategy is executed to allocate uplink transmission resources to the terminal device in a conventional manner; thus, the resource allocation strategy is accurately executed based on the intensity of the cross-link interference currently experienced by the terminal device, minimizing the impact of cross-link interference on the terminal device.

[0050] The following will describe in more detail the various steps of the communication method in this exemplary embodiment with reference to the accompanying drawings and embodiments.

[0051] refer to Figure 4 The system architecture shown is a schematic diagram illustrating an exemplary system architecture to which the technical solutions of the embodiments of the present invention can be applied. For example... Figure 4 As shown, the system architecture may include several network devices and terminal devices. Terminal devices can connect to network devices via air interfaces to receive network services. The aforementioned network devices are mainly used to implement wireless physical layer functions, resource scheduling and wireless resource management, wireless access control, mobility management functions, or other functions.

[0052] The aforementioned network device may refer to a device with wireless transceiver capabilities, a chip system installed in the device, or other forms. This network equipment includes, but is not limited to: access points (APs) in Wi-Fi systems, such as home wireless routers, wireless relay nodes, wireless backhaul nodes, transmission and reception points (TRPs or transmission points (TPs), eNBs, macro base stations, micro base stations, high-frequency base stations, new radio eNBs, radio network controllers (RNCs), node Bs (NBs), base station controllers (BSCs), base transceiver stations (BTSs), home base stations (e.g., home evolved node Bs or home node Bs, HNBs), baseband units (BBUs), and can also be gNBs in 5G systems, such as transmission points (TRPs or TPs), one or a group of antenna panels (including multiple antenna panels) of base stations in 5G systems, or network nodes constituting gNBs or transmission points, such as baseband units (BBUs) or distributed units (DUs), etc.

[0053] In some deployments, a gNB may include a centralized unit (CU) and a distributed unit (DU). A gNB may also include a radio unit (RU). The CU implements some of the gNB's functions, and the DU implements others. For example, the CU implements the functions of radio resource control (RRC), the packet data convergence protocol (PDCP) layer, and the service discovery application profile (SDAP) layer, while the DU implements the functions of radio link control (RLC), media access control (MAC), and the physical (PHY) layer. Since RRC layer information ultimately becomes PHY layer information, or is derived from PHY layer information, in this architecture, higher-layer signaling, such as RRC layer signaling or PDCP layer signaling, can also be considered as being sent by the DU, or by the DU+RU. It is understood that network devices can be CU nodes, DU nodes, or devices including both CU and DU nodes. Furthermore, a CU can be classified as a network device in the radio access network (RAN) or a network device in the core network (CN), without any restrictions.

[0054] The aforementioned terminal equipment can be user equipment with wireless transceiver capabilities or a chip system installed in such user equipment. For example, the aforementioned terminal equipment can also be referred to as a station (STA), user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication equipment, user agent, or user device. The aforementioned terminal equipment includes, but is not limited to: mobile phones, tablets, computers with wireless transceiver capabilities, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, wireless terminals in industrial control, wireless terminals in self-driving vehicles, wireless terminals in transportation safety, wireless terminals in smart cities, and sensor-type devices such as monitoring terminals.

[0055] It should be understood that Figure 4 This is a simplified schematic diagram for ease of understanding only, showing only terminal devices and network devices (such as base stations). In embodiments of this application, the wireless communication system may also include other network devices (such as core network devices) or other terminal devices. Figure 4 It was not drawn in the middle.

[0056] The aforementioned communication system can be applied to LTE, 5G, or other similar networks, or future networks, and this application does not specifically limit its application. Furthermore, the network devices and terminal devices in the aforementioned communication system may have different names in different networks; those skilled in the art will understand that the name does not limit the device itself.

[0057] Furthermore, the system architecture and business scenarios described in this application are for the purpose of more clearly illustrating the technical solutions of this application, and do not constitute a limitation on the technical solutions provided in this application. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in this application are also applicable to similar technical problems.

[0058] For example, refer to Figure 4 The system architecture shown includes network devices such as a first base station 410 and a second base station 420. The first base station 410 and the second base station 420 can exchange data at fixed intervals via an Xn interface. For example, the two base stations can transmit base station resource configuration information via the Xn interface. Each base station can correspond to multiple areas, i.e., cells, divided according to certain rules; each cell can contain multiple terminal devices. For example, the first base station 410 can correspond to a first cell and a second cell, with the first cell corresponding to a first terminal device 411 and the second cell corresponding to a second terminal device 412; the second base station 420 can correspond to a third terminal device 421.

[0059] Referring to the accompanying drawings, the communication method provided in this exemplary embodiment is executed on a first network device, and may specifically include the following steps: In this example embodiment, the communication method described above may include: the first network device acquiring resource configuration information of the second network device at a preset period, so as to determine the association relationship between the first network device and the second network device based on the resource configuration information.

[0060] Specifically, network devices can use the Xn interface to transmit and share resource configuration information with other network devices. For example... Figure 4The first base station 410 shown can periodically obtain resource configuration information from the second base station 420 via the Xn interface; and send its own resource configuration information to the second base station 420. This period is not limited by signaling transmission between the terminal device and the network settings. By analyzing the resource configuration information, the first base station can determine whether there is a correlation between itself and the second base station.

[0061] For example, if analysis based on resource configuration information determines that two base stations share the same time-frequency resources, both use TDD mode for transmission, and have different uplink / downlink time slot ratios, it indicates that the two base stations have a transmission correlation; it also suggests that there may be cross-link interference between the cells of the two base stations. The aforementioned resource configuration information includes, but is not limited to, the following: Subcarrier spacing: NR base stations support multiple subcarrier spacings, including 15ms, 30ms, 60ms, 120ms, and 240ms.

[0062] TDD UL-DL mode: DL-UL transmission cycle: Specifically includes multiple cycles such as 0.5ms, 0.625ms, 1ms, 1.25ms, 2ms, 2.5ms, 5ms, and 10ms; Number of downlink slots: The number of consecutive complete DL slots at the beginning of each DL-UL mode; Downlink symbol count: The number of consecutive DL symbols at the beginning of the slot following the last complete DL slot; Number of uplink time slots: The number of consecutive complete UL time slots at the beginning of each DL-UL mode; Uplink symbol count: The number of consecutive UL symbols at the end of the slot preceding the first complete UL slot.

[0063] In this example implementation, refer to Figure 5 As shown, the above-mentioned communication method may further include: Step S101: Obtain network monitoring data within a preset period; wherein, the network monitoring data includes measurement information and terminal association data constructed from data transmission information reported by terminal devices in each cell corresponding to the first network device; Step S102: Based on the network monitoring data and the association between the first network device and the second network device, determine whether the terminal device has cross-link interference.

[0064] Specifically, for network devices, measurement configuration information can be sent to intermediate devices to measure the presence of CLI. Terminal devices, based on the sent measurement configuration information, perform measurements on the target and periodically report the results. The reported measurement information includes, but is not limited to, the following: measurement identifier; serving cell measurement target: serving cell identifier; serving cell measurement results: radio signal strength: RSRQ of the measured reference signal, radio signal received power: RSRP, signal-to-interference-plus-noise ratio: SINR; beam measurement results (at least one of the following): beam measurement results based on SS / PBCH blocks, beam measurement results based on CSI-RS.

[0065] Network devices can send measurement configuration information to terminal devices when the terminal device requests uplink transmission resources. For example, refer to... Figure 4 As shown, the first base station can send measurement configuration information to the first terminal device in the first cell and the second terminal device in the second cell respectively, in order to obtain the measurement reports fed back by each terminal device.

[0066] After receiving the measurement report from the terminal device, the network device associates and saves relevant information of the terminal device based on the terminal device's configuration information, thus constructing terminal association data. This associated information includes the time-frequency resource configuration, signal strength information, and uplink rate configured for the terminal. The related information includes, but is not limited to, the following: Uplink transmission resource configuration, including: Time domain resources: uplink transmission time slots, mapping type: resource allocation type 0 or 1, start symbol and length (duration); Frequency domain resources: resource allocation type 0 or 1, frequency domain resource configuration: if resource allocation type 0, then the corresponding RBG bitmap; if resource allocation type 1, then the corresponding frequency domain start position and length RIV value; Measurement configuration information: measurement identifier; Serving cell measurement object: serving cell identifier, serving cell measurement results: Radio signal strength: measured reference signal RSRP, radio signal received power: RSRQ, signal-to-interference-plus-noise ratio: SINR; Beam measurement results (including at least one of the following): beam measurement results based on SS / PBCH blocks, beam measurement results based on CSI-RS; Data rate: the terminal's uplink data transmission rate.

[0067] In this example implementation, for network devices, the association information of terminal devices in different cells can be analyzed over a period of time according to a preset period. Specifically, this can include resource configuration information, measurement reporting information (including serving cell measurement results, beam measurement results, etc.), and data rates. If the time-frequency resources scheduled for the first terminal device in the first cell corresponding to the first base station are similar, and the signal strength is similar, and if the data transmission rates of the first and second terminal devices differ significantly, then the association between the first and second base stations is considered, and it is determined that the terminal device in the cell with lower throughput is experiencing cross-link interference. This allows for the periodic identification of which terminal devices within a base station are experiencing cross-link interference. Furthermore, when determining cross-link interference, by combining resource configuration information, measurement reporting information, and rate information with the association data between base stations, it is possible to more accurately determine whether a terminal device is experiencing cross-link interference or whether the decrease in data transmission rate is due to other network factors or hardware problems of the device; and it is possible to accurately determine which base stations are causing cross-link interference to the terminal device.

[0068] In step S11, the first network device obtains the uplink resource request from the terminal device.

[0069] In this example implementation, as Figure 4 In the system architecture shown, the first network device can be a first base station 410. When a first cell terminal, i.e., a first terminal device 411, within the first base station needs to perform uplink data transmission, the first terminal device can request data transmission resources from the first cell, i.e., request uplink data transmission resources from the first base station. The first base station can receive the current uplink resource request from the first terminal device.

[0070] In step S12, if the current cross-link interference intensity of the terminal device is less than a preset threshold, the first strategy is executed to allocate uplink transmission resources to the terminal device.

[0071] In this example implementation, for network devices, a threshold value for cross-link interference can be calculated based on historical data over a period of time. Specifically, the first base station can assess and calculate the total interference value based on the terminal device's service requirements, including parameters such as terminal traffic bit rate and maximum packet loss rate; measured and reported information, including radio signal RSRP and signal-to-interference-plus-noise ratio (SINR); and parameters such as the terminal device's uplink transmission rate and throughput. Based on this, the base station sets a threshold value for cross-link interference based on statistical information about other types of interference over a previous period. If the cross-link interference intensity currently experienced by the terminal device is less than this threshold value, it means that even without suppression measures for the cross-link interference, the terminal's service requirements can be met; if the cross-link interference intensity is greater than this threshold value, it means that suppression measures for the cross-link interference are required to meet the terminal's service requirements. The terminal device's service requirements may include: traffic bit rate (including guaranteed traffic bit rate and maximum traffic bit rate); and maximum packet loss rate.

[0072] In this example implementation, specifically, when the first base station receives an uplink resource request from the first terminal device, it can read the cross-link interference strength of the first terminal device in the current detection period. If the first terminal device currently does not have cross-link interference, or the current cross-link interference strength is less than a preset threshold, the first strategy can be executed to allocate uplink transmission resources to the terminal device. The first strategy configures uplink transmission resources for the terminal device in a conventional manner based on the terminal device's service requirements. The configured uplink transmission resources may include: uplink frame structure configuration (only required in TDD mode); uplink transmission resource configuration includes: time-domain resources, frequency-domain resources, and uplink carriers. The time-domain resources include: uplink transmission time slots, start symbol, and duration (i.e., the number of consecutive symbols, i.e., resource allocation type 0 or 1 and length). The frequency-domain resources include: resource allocation type (0 or 1); frequency-domain resource configuration, including: if resource allocation type 0, the corresponding RBG bitmap; if resource allocation type 1, the corresponding frequency domain start position and length RIV value.

[0073] By configuring corresponding threshold values ​​based on historical network data of network devices over a period of time, the intensity and impact of cross-link interference currently experienced by terminal devices can be accurately assessed, avoiding potential resource waste caused by directly using power control to suppress cross-link interference.

[0074] In some exemplary embodiments, reference is made to Figure 6 As shown, the above-mentioned communication method may further include: Step S11: The first network device obtains the uplink resource request from the terminal device; Step S13: If the current cross-link interference intensity is greater than a preset threshold, execute the second strategy to configure the uplink transmission resources for the terminal device; wherein, the second strategy includes filtering time slots that have not suffered cross-link interference.

[0075] Specifically, when the first network device receives an uplink resource request from the first terminal device, it can compare the intensity of the cross-link interference experienced by the first terminal device in the current monitoring period with a preset threshold value. If the intensity of the current cross-link interference is greater than the threshold value, it can first consider adopting an active avoidance approach and execute the second strategy to configure uplink transmission resources for the first terminal device. Specifically, the second strategy may be to select a time slot other than the uplink time slot corresponding to the target downlink time slot, and / or a time slot other than the uplink time slot corresponding to the target special time slot, and configure the uplink transmission resources. That is, the first base station schedules and filters time slots that have not suffered cross-link interference for the first terminal device; specifically, it may be to select a time slot other than the uplink time slot corresponding to the target downlink time slot, and / or a time slot other than the time slot corresponding to the downlink mark in the target special time slot, and configure the uplink transmission resources. For example, refer to Figure 7 As shown, this time slot is an uplink time slot that does not correspond to the downlink time slot of the second base station, and a time slot that does not correspond to the downlink symbol in the special time slot of the second base station.

[0076] In some exemplary embodiments, after configuring uplink transmission resources for the terminal device using the second strategy, the terminal device can continue to be monitored to confirm whether the scheduled time slots can meet the actual service requirements of the terminal device. Specifically, it can be determined whether the service requirements of the terminal device are met based on the actual uplink rate of the terminal device. Alternatively, it can be determined whether the time slots scheduled based on the second strategy can meet the service requirements of the terminal device based on the allocated time slots, the aforementioned measurement and reporting information, and parameters such as throughput. If they can meet the requirements, the current active avoidance second strategy continues to be executed, allowing the terminal device to use the scheduled time slots. Alternatively, if it is determined that the service requirements cannot be met, reconfiguration is required.

[0077] In some exemplary embodiments, specifically, reference Figure 8 As shown, the above-mentioned communication method may further include: Step S141: Obtain the uplink transmission parameters of the terminal device based on the uplink transmission resources; Step S142: When the uplink transmission parameters do not meet the preset service requirements, execute the third strategy to configure the uplink transmission resources for the terminal device; or when configuring the uplink transmission resources for the terminal device according to the second strategy fails, execute the third strategy to configure the uplink transmission resources for the terminal device; wherein, the third strategy includes negotiating with a second network device with an association relationship to stop or reduce cross-link interference.

[0078] Specifically, when the first network device cannot find a time slot without cross-link interference based on the network device's resource configuration information, or when it is determined by the method in the above embodiments that the time slot scheduled based on the second strategy cannot meet the service requirements of the terminal device, the first network device can execute the third strategy to negotiate with the second network device, which has been pre-identified as having an inter-base station relationship.

[0079] In some exemplary embodiments, specifically, executing the third strategy in step S142 above may include: Step S21: Send an interference avoidance request to the second network device; Step S22: Obtain the avoidance confirmation information fed back by the second network device, and configure the uplink transmission resources for the terminal device based on the avoidance confirmation information.

[0080] For details, please refer to Figure 4 In the architecture shown, the first base station sends an interference avoidance request to the second base station via the Xn interface. The interference avoidance request includes any one or a combination of any of the following: the terminal device's service priority, cross-link interference indicator, time slot interference information, beam negotiation information, and time negotiation information.

[0081] Specifically, the interference avoidance request message may carry information such as the service requirements of the terminal devices in the first network device that are affected by cross-link interference, the currently affected uplink time slot, the interfering beam information, and the time for requesting the closure of the interfering beam. Specifically, the interference avoidance request message includes, but is not limited to, the following information: terminal service priority, cross-link interference indicator, time slot interference information, the beam identifier to be closed, and the closure time; wherein, the terminal service priority includes information such as terminal service requirements, such as traffic bit rate, including guaranteed traffic bit rate and maximum traffic bit rate; and maximum packet loss rate. The time slot interference information, i.e., the interfering time slot, is used to indicate the uplink time slot affected by cross-link interference. The cross-link interference indicator is used to indicate which time slot is affected by cross-link interference. The beam identifier to be closed is used to indicate which beams are causing interference. The closure time indicates the time for requesting the second base station to close the relevant interfering beam, including the start time and duration.

[0082] In some exemplary embodiments, specifically, the second network device receives and responds to the interference avoidance request, and can analyze its own load situation and send back avoidance confirmation information to the first network device. The avoidance confirmation information may include: first avoidance confirmation information or second avoidance confirmation information; wherein, the first avoidance information includes negotiation confirmation information of complete agreement; and the second avoidance confirmation information includes negotiation confirmation information of partial agreement.

[0083] The first and second avoidance confirmation information mentioned above may include any one or any combination of the following: confirmation shutdown indicator, beam negotiation result and time negotiation result.

[0084] For the second network device, for example Figure 4 The second base station 420 shown, upon receiving an interference avoidance request from the first base station 410, can determine whether to accept the request based on its current load. If the second network device decides to execute the request and closes the interfered time slots and beams according to the requested start time and duration, and if the current load can still be met, it can send a first avoidance confirmation message to the first network device, fully agreeing to the negotiated request content. This allows the terminal devices of the first network device to completely avoid cross-link interference. Alternatively, if the second network device determines that executing the request cannot meet the current load and adversely affects service requirements but with limited impact, it can choose to execute only a portion of the request. For example, while meeting the load of its own network device, it can customize the start time and duration based on the negotiated time information in the request, or select some time slots to release based on the negotiated time slot information, or select some beams to release based on the negotiated beam information in the request. For example, the execution request may specify the start time, duration, and beam, but select some time slots to disable; or, the execution request may specify the start time and duration, but select some time slots and beams to disable; or, the execution request may specify the time slots and beams, but customize the start time and duration; and so on. Of course, the above examples are merely illustrative of the content of the second obstacle avoidance confirmation information, and the second network device can limit the specific content of the second obstacle avoidance confirmation information according to actual needs. Alternatively, if the second network device determines that executing the interference avoidance request cannot meet the current load, it can reject the request and send back obstacle avoidance rejection information.

[0085] In some exemplary embodiments, if the first network device receives a first avoidance confirmation message from the second network device, it indicates that the second network device fully agrees with all the contents of the avoidance request and agrees to close all interfering beams. The first network device can then allocate time-domain and frequency-domain resources to the first terminal device without considering cross-link interference. If the first network device receives a second avoidance confirmation message from the second network device, it indicates that the second network device agrees with only part of the avoidance request and agrees to close some interfering beams. The first network device can then allocate corresponding time-domain and frequency-domain resources to the terminal device according to its service requirements to meet those requirements as much as possible. For example, after receiving the second avoidance confirmation message, the first network device can execute a second strategy, configuring uplink transmission resources for the terminal device based on the successfully negotiated time information, beam information, and time slot information.

[0086] In some exemplary embodiments, the above method may further include: Step S23: Obtain the avoidance request confirmation information fed back by the second network device, and execute the second strategy to configure the uplink transmission resources for the terminal device.

[0087] Specifically, after receiving the obstacle avoidance confirmation information from the second network device and allocating uplink transmission resources based on the confirmation information, the first network device may receive an obstacle avoidance request confirmation information from the second network device during the negotiation time. This request might be sent by the second network device during beam closure due to increased traffic or other reasons, indicating that the second network device needs to restore the transmission of the relevant interfering beam. Upon receiving this obstacle avoidance request confirmation information, the first network device can execute the second strategy described above, reallocating uplink transmission resources to the terminal device. For example, it can try to avoid scheduling time slots with cross-link interference for the terminal device, or schedule time slots with lower cross-link interference intensity to meet the terminal device's service needs as much as possible. Additionally, after a preset time period, the first network device can initiate another interference avoidance request to the second network device.

[0088] In some exemplary embodiments, the above method may further include: Step S21: Send an interference avoidance request to the second network device; Step S24: Obtain the obstacle avoidance confirmation information fed back by the second network device; wherein, the obstacle avoidance information includes third obstacle avoidance confirmation information carrying obstacle avoidance rejection information; and Configure the uplink transmission resources for the terminal device according to the fourth strategy; wherein the fourth strategy includes: selecting a time slot combination whose total cross-link interference intensity is less than a preset threshold, and / or selecting time slots that have not suffered cross-link interference.

[0089] Specifically, for the first network device, if it receives a third avoidance confirmation message from the second network device, indicating that the second network device does not agree to close the interfering beam, the first network device should try to avoid scheduling time slots with cross-link interference for the terminal device in order to meet service requirements as much as possible. For example, a fourth strategy can be implemented to configure uplink transmission resources for the terminal device. Specifically, the fourth strategy can be to select time slots without cross-link interference, or a combination of time slots with cross-link interference less than a threshold value, or to select at least one time slot with the lowest current cross-link interference.

[0090] In some exemplary embodiments, a communication method is provided, applied to a second network device; Reference Figure 9 As shown, the communication method may specifically include: Step S91: The second network device obtains the interference avoidance request from the first network device; Step S92: Evaluate whether the execution result of the interference avoidance request meets the current service requirements, generate feedback information based on the evaluation result, and send it to the first network device.

[0091] For details, please refer to Figure 4 In the communication architecture shown, the second network device can be a second base station 420, which corresponds to at least one terminal device. For example, the second base station 420 interacts with a third terminal device 421; the third terminal device 421 performs data services and / or voice services through the second base station 420. The first network device can be a first base station 410. The second base station can interact with the first base station via the Xn interface, for example, transmitting resource configuration information and other signaling.

[0092] For the second base station, after receiving the interference avoidance request sent by the first base station via the Xn interface, it can respond to the request and assess the potential impact of executing the request on its own base station. Specifically, the aforementioned interference avoidance request may include any one or a combination of any of the following: the service priority of the first terminal device corresponding to the first network device, time slot negotiation information, beam negotiation information, and time negotiation information. Among these, the time slot negotiation information is the uplink time slot currently experiencing interference for the first terminal device; the beam negotiation information is the interfering beam information; and the time negotiation information is the time for requesting the disabling of the interfering beam, etc.

[0093] In some exemplary embodiments, the second network device may determine whether the current service requirements are met after executing the interference avoidance request based on the resource configuration information, measurement information and data transmission information of the corresponding terminal device, and generate the feedback information based on the determination result.

[0094] Specifically, after receiving an interference avoidance request from the first base station, the second base station can determine whether to accept the request based on its current load status. Specifically, the current load status of the second base station includes the service requirements of all terminal devices within the second base station; the service requirements of the terminal devices include, but are not limited to: terminal identifier; service priority: including information such as terminal service requirements, such as traffic bit rate: guaranteed traffic bit rate, maximum traffic bit rate; maximum packet loss rate.

[0095] Specifically, the judgment criteria for the second base station may include whether disabling the beam requested by the first base station can still meet the service needs of the terminals within the second base station. Specifically, the second base station determines, based on previous terminal equipment resource configuration information, reported measurement information, and uplink rates, whether disabling the beam requested by the first base station can meet the service needs of the terminal equipment within its base station. If it can, it agrees to disable the beam requested by the first base station. If the second base station determines that disabling the beam requested by the first base station cannot meet the service needs of the terminal equipment within the second base station, the second base station may directly reject the interference avoidance request from the first base station, or it may disable several beams while ensuring the terminal service needs are met. The order of beam disabling is to first disable the beams corresponding to lower priority services. Furthermore, the second base station can determine the duration of beam disabling based on the current service needs of the terminal equipment. The principle is that the second base station determines the duration of beam disabling based on the cycle of the service corresponding to the currently disabled beam or the predicted duration of that service.

[0096] After the second base station calculates and makes a decision, it sends feedback information to the first base station via the Xn interface, enabling the first base station to determine the corresponding terminal equipment resource configuration strategy based on the feedback information. The feedback information includes one of the following: a first avoidance confirmation message, a second avoidance confirmation message, or a third avoidance confirmation message; wherein the first avoidance confirmation message includes a negotiation confirmation message of complete agreement; the second avoidance confirmation message includes a negotiation confirmation message of partial agreement; and the third avoidance confirmation message includes a rejection of avoidance. Each avoidance confirmation message may include any one or a combination of any of the following: a confirmation shutdown indicator, a beam negotiation result, and a time negotiation result.

[0097] Specifically, the information carried by each type of feedback message includes, but is not limited to, the following: A confirmation shutdown indicator can be used to indicate whether to shut down the beam: a "1" indicates agreement to shut down the beam, and a "0" indicates disagreement. A "1" indicates agreement to shut down any one beam. The beam negotiation result can be the identifier of the agreed-upon beams, indicating which beams are agreed to be shut down. The time negotiation result can be the shutdown time, indicating when the second base station agrees to shut down the interfering beam, including the start time and duration of the shutdown.

[0098] In some exemplary embodiments, for the second network device, when the second network device executes the interference avoidance request, the method further includes: Step S931: Obtain current service monitoring data; if, based on the current service monitoring data, it is determined that the current network resources cannot meet the updated service requirements, stop executing the interference avoidance request and reallocate network resources according to the current service monitoring data; and Step S932: Send avoidance request confirmation information to the first network device.

[0099] Specifically, for the second base station, if traffic increases during the beam shutdown process, requiring the restoration of the corresponding interfering beam, the second base station will resend the avoidance request confirmation information to the first base station to inform it that it needs to restore the transmission of the relevant interfering beam. The avoidance request confirmation information includes, but is not limited to, the following: a shutdown indicator: "1" indicates agreement to shut down the beam, and "0" indicates disagreement; as long as at least one beam agrees to shut down, the indicator is "1"; the identifier of the beam to be shut down: indicating the specific number of the beam to be shut down; and the shutdown time: indicating the time at which the second base station agrees to shut down the interfering beam, including the start time and duration.

[0100] In some exemplary embodiments, the first network device described above may be an outdoor macro station, and the second network device described above may be an indoor micro station. In a TDD system, since the downlink transmission power of the macro station is relatively large, it may affect the uplink transmission of the micro station. This disclosure improves system performance by using a cooperative interference avoidance strategy between the macro station and the micro station to better avoid cross-link interference.

[0101] refer to Figure 10As shown, the macro base station interacts with the micro base station via the Xn interface to exchange resource configuration information. This resource configuration information may include time slot allocation information. By comparing and analyzing the resource configuration information of the two base stations, the macro and micro base stations can predict in advance the time slot information where cross-link interference exists. The aforementioned time slot allocation information may include: time slot identifier: indicating the specific time slot number; time slot configuration: indicating whether the time slot is an uplink time slot, a downlink time slot, or a special time slot; special time slot configuration: indicating how many symbols represent uplink and how many represent downlink.

[0102] When a terminal device at a micro-site needs to transmit uplink data, it sends an uplink transmission resource request message to the micro-site. Upon receiving the message, the micro-site allocates uplink transmission resources to the terminal device. These uplink transmission resources include, but are not limited to, the following information: uplink frame structure configuration (only required in TDD mode); uplink transmission resource configuration (time domain resources, frequency domain resources); and uplink carrier configuration.

[0103] The terminal device measures the interference it receives based on the instructions and measurement configuration information issued by the micro-station, and periodically reports the measurement content. The reported measurement content includes, but is not limited to, the following information: wireless signal strength: the measured RSRP of the reference signal; interference beam information: the measured beam information containing interference.

[0104] After receiving uplink data and measurement reports from the terminal device, the microstation associates and saves relevant information about the terminal device based on its previous configuration information. This associated information includes, but is not limited to, the following: allocated resources: the number of PRBs allocated to the terminal for uplink transmission; wireless signal strength: the RSRP reported in the measurement report submitted by the terminal; and data rate: the terminal's uplink data transmission rate.

[0105] The micro-site assesses and calculates the total interference value based on the terminal device's business requirements, measurement reports, data rates, and other related information. On this basis, the micro-site sets a threshold for cross-link interference based on statistical information on other types of interference over a previous period.

[0106] Micro-stations can analyze data collected over a period of time, which can be a pre-configured period. When comparing data, if the RSRP reported by the first terminal device in the first cell and the second terminal device in the second cell are similar, and the number of PRBs scheduled for them is similar, but the throughput of the first terminal device and the second terminal device differs greatly (e.g., the difference in throughput is greater than a preset throughput threshold), or if the throughput of the first terminal device is much lower than that of the second terminal device, the micro-station, based on the previously obtained correlation with the macro-station, determines that the first terminal device in the first cell with lower throughput is experiencing cross-link interference.

[0107] To meet the service requirements of the first terminal device in the first cell, the microcell first determines whether the current cross-link interference intensity experienced by the terminal device exceeds a pre-set threshold. If it is less than the threshold, no further action is taken, and uplink transmission resources are allocated to the terminal device in a conventional manner; for example, uplink transmission resources are allocated to the terminal device as if there is no cross-link interference. Alternatively, if the current cross-link interference intensity exceeds the threshold, an active avoidance method is first used to schedule time slots without cross-link interference for the microcell terminal, and it is determined whether this can meet the terminal's service requirements. If the service requirements are met, then these time slots without cross-link interference are scheduled for the terminal device.

[0108] Alternatively, when the micro base station discovers that it cannot meet the service requirements of the first terminal device through active avoidance, or when there is currently no time slot free from cross-link interference, the micro base station adopts a negotiated avoidance method, sending an interference avoidance request message to the macro base station via the Xn interface. The interference avoidance request message includes, but is not limited to, the following: Service priority: including information such as the QoS requirements of the first terminal device's services; Cross-link interference indicator: indicating which uplink time slot is suffering from cross-link interference; Requested beam closure identifier: indicating which beams of the macro base station are causing interference; Closure time: indicating the time when the second base station is requested to close the interfering beams.

[0109] Upon receiving an interference avoidance request message, the macro station determines whether to accept the request based on its current load. The criteria are as follows: if the macro station determines that disabling the requested beam will still meet its business needs, it agrees to disable the requested beam; if the macro station determines that disabling the requested beam will not meet its business needs, it can directly reject the interference avoidance request; alternatively, it can disable several beams while ensuring business requirements are met. After making a decision, the macro station sends a feedback message to the micro station via the Xn interface. This feedback message includes, but is not limited to, the following information: a disable indicator ("1" indicates agreement to disable the beam, "0" indicates rejection); beam identifier (indicating the specific number of the beam to be disabled); and the disabling time (indicating the time the macro station agrees to disable the interfering beam). Alternatively, when the macro station generates a rejection feedback message, the feedback message may only include the disable indicator.

[0110] After receiving the interference avoidance request confirmation message from the macro station, the micro station determines its own interference avoidance strategy based on the macro station's interference avoidance strategy to meet business needs as much as possible. Specifically, if the macro station agrees to shut down all interfering beams, the micro station can allocate time-frequency resources to the first terminal device without considering cross-link interference; if the macro station does not agree to shut down interfering beams, the micro station should try to avoid scheduling time slots with cross-link interference for the first terminal device to meet business needs as much as possible; if the macro station agrees to shut down some interfering beams, the micro station can allocate time-frequency resources to the first terminal device according to business needs to meet business needs as much as possible.

[0111] For a macro station, if traffic increases during beam closure and the corresponding interfering beam needs to be restored, the macro station will resend an interference avoidance request confirmation message (avoidance request confirmation information) to the micro station, expressing its intention to terminate the negotiated content. This informs the micro station that it needs to restore the transmission of the relevant interfering beam to meet the increased traffic demand. The avoidance request confirmation information includes, but is not limited to, the following: a closure indicator: "1" indicates agreement to close the beam, and "0" indicates refusal to close the beam; the beam identifier agreed to be closed: indicating the specific number of the beam agreed to be closed; and the closure time: indicating the time the macro station agreed to close the interfering beam.

[0112] After receiving confirmation of the avoidance request, the micro-station can try to avoid scheduling time slots with cross-link interference for the first terminal device, or schedule time slots with lower cross-link interference intensity, so as to meet business needs as much as possible.

[0113] The communication method disclosed herein allows the affected side to decide whether to adopt an active avoidance strategy or a negotiated avoidance strategy with the interfering side based on its own business needs and the intensity of the current cross-link interference, thereby improving the effectiveness of the interference avoidance mechanism and enhancing system capacity. For the interfering side, it can determine whether to accept the interference avoidance request from the affected side based on its own business needs; and after determining the cross-link interference avoidance strategy, it can dynamically adjust the strategy when traffic changes, thereby improving the flexibility of the interference avoidance strategy and enhancing system performance. The interfering side and the affected side can dynamically negotiate the cross-link interference avoidance strategy through Xn messages based on their own business needs, improving the flexibility of the interference avoidance strategy, better suppressing cross-link interference, and increasing system throughput. This solution enhances existing protocols with minimal modifications, has low implementation difficulty, and has minimal impact on terminals, exhibiting good backward compatibility and deployment feasibility.

[0114] It should be noted that the above figures are merely illustrative of the processes included in the method according to exemplary embodiments of the present invention, and are not intended to be limiting. It is readily understood that the processes shown in the above figures do not indicate or limit the temporal order of these processes. Furthermore, it is readily understood that these processes may, for example, be executed synchronously or asynchronously in multiple modules.

[0115] Further reference Figure 11 As shown, this example embodiment also provides a communication device 110, including: an uplink resource request acquisition module 1101 and a first strategy execution module 1102. Wherein, The uplink resource request acquisition module 1101 can be used by the first network device to acquire the uplink resource request of the terminal device.

[0116] The first strategy execution module 1102 can be used to allocate uplink transmission resources to the terminal device by executing the first strategy if the current cross-link interference intensity of the terminal device is less than a preset threshold value.

[0117] In this example embodiment, the communication device 110 may further include a second strategy execution module.

[0118] The second strategy execution module can be used to execute the second strategy to configure the uplink transmission resources for the terminal device if the current cross-link interference intensity is greater than a preset threshold value; wherein, the second strategy includes filtering time slots where no cross-link interference has occurred.

[0119] In this example implementation, the second policy execution module may include: selecting a time slot other than the uplink time slot corresponding to the target downlink time slot, and / or a time slot other than the time slot corresponding to the downlink mark in the target special time slot, and configuring the uplink transmission resources.

[0120] In this example embodiment, the communication device 110 may further include the third strategy execution module.

[0121] The third strategy execution module can be used to execute a third strategy to configure the uplink transmission resources for the terminal device when the uplink transmission parameters do not meet the preset service requirements; or to execute a third strategy to configure the uplink transmission resources for the terminal device when configuring the uplink transmission resources for the terminal device according to the second strategy fails; wherein, the third strategy includes negotiating with a second network device with an association relationship to stop or reduce cross-link interference.

[0122] In this example implementation, the third policy execution module may include: sending an interference avoidance request to the second network device; obtaining avoidance confirmation information fed back by the second network device; and configuring the uplink transmission resources for the terminal device based on the avoidance confirmation information.

[0123] In this example implementation, the interference avoidance request includes any one or a combination of any number of the terminal device's service priority, time slot negotiation information, beam negotiation information, and time negotiation information.

[0124] In this example implementation, the avoidance confirmation information includes: first avoidance confirmation information or second avoidance confirmation information; wherein, the first avoidance information includes negotiation confirmation information of complete agreement; and the second avoidance confirmation information includes negotiation confirmation information of partial agreement.

[0125] In this example implementation, the avoidance confirmation information includes any one or a combination of any of the following: confirmation shutdown indicator, beam negotiation result, and time negotiation result.

[0126] In this example embodiment, the communication device 110 may further include a negotiation termination response module.

[0127] The negotiation termination response module can be used to obtain the avoidance request confirmation information fed back by the second network device, and execute the second strategy to configure the uplink transmission resources for the terminal device.

[0128] In this example embodiment, the communication device 110 may further include a fourth strategy execution module.

[0129] The fourth strategy execution module can be used to obtain the rejection avoidance information fed back by the second network device, and configure the uplink transmission resources for the terminal device according to the fourth strategy; wherein, the fourth strategy includes selecting time slots that have not suffered cross-link interference, and / or selecting a combination of time slots whose total cross-link interference intensity is less than a preset threshold value.

[0130] In this example embodiment, the communication device 110 may further include a network device relationship construction module.

[0131] The network device relationship construction module can be used to obtain the resource configuration information of the second network device at a preset period for the first network device, so as to determine the association relationship between the first network device and the second network device based on the resource configuration information.

[0132] In this example embodiment, the communication device 110 may further include a cross-link interference identification module.

[0133] The cross-link interference identification module can be used to acquire network monitoring data within a preset period; wherein, the network monitoring data includes measurement information and data transmission information reported by terminal devices in each cell corresponding to the first network device; based on the network monitoring data and the association between the first network device and the second network device, it is determined whether the terminal device has cross-link interference.

[0134] In this example embodiment, the cross-link interference identification module may further include: performing a data comparison based on the resource configuration information, signal strength data, and data transmission rate data of the first terminal device in the first cell corresponding to the first network device and the second terminal device in the second cell, so as to determine that the first terminal device or the second terminal device has cross-link interference from the second network device based on the data comparison.

[0135] In this example implementation, the first network device interacts with the second network device via the Xn interface.

[0136] Further reference Figure 12 As shown, another communication device 120 is also provided in this example embodiment, including: an interference avoidance request receiving module 1201 and a feedback information processing module 1202. Wherein: The interference avoidance request receiving module 1201 can be used for the second network device to obtain the interference avoidance request of the first network device.

[0137] The feedback information processing module 1202 can be used to evaluate whether the execution result of the interference avoidance request meets the current business requirements, generate feedback information based on the evaluation result, and send it to the first network device.

[0138] In this example implementation, the interference avoidance request includes any one or a combination of any number of the following: the terminal device's service priority, time slot negotiation information, beam negotiation information, and time negotiation information.

[0139] In this example embodiment, the feedback information processing module 1202 may include: determining whether the current service requirements are met after executing the interference avoidance request based on the resource configuration information, measurement information and data transmission information of the terminal device corresponding to the second network device, and generating the feedback information based on the determination result.

[0140] In this example implementation, the feedback information includes: a first avoidance confirmation message, a second avoidance confirmation message, or a refusal to avoid the obstacle; wherein, the first avoidance message includes a negotiation confirmation message of complete agreement; and the second avoidance confirmation message includes a negotiation confirmation message of partial agreement.

[0141] In this example implementation, the first avoidance confirmation information and the second avoidance confirmation information include any one or any combination of the following: confirmation shutdown indicator, beam negotiation result and time negotiation result.

[0142] In this example embodiment, the communication device 120 may further include a service monitoring module.

[0143] The service monitoring module can be used to acquire current service monitoring data, and when it is determined based on the current service monitoring data that the current network resources cannot meet the updated service requirements, stop executing the interference avoidance request, reallocate network resources based on the current service monitoring data, and send avoidance request confirmation information to the first network device.

[0144] In this example implementation, the avoidance request confirmation information includes any one or a combination of any of the following: a shutdown indicator, beam identification information, and time information.

[0145] In this example implementation, the second network device interacts with the first network device via the Xn interface.

[0146] The specific details of each module in the aforementioned communication device have been described in detail in the corresponding communication methods, so they will not be repeated here.

[0147] Furthermore, this example embodiment also provides a communication system, which may include multiple network devices as described in the above embodiments, and terminal devices; the network devices may be base stations, and the terminal devices may be mobile phones. Figure 4 As shown, the communication system may include at least the first network device 410 and the second network device 420 as described in the above embodiments. The network devices can implement the communication methods described in the above embodiments using a computer.

[0148] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to embodiments of this disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0149] In an exemplary embodiment of this disclosure, a network device capable of implementing the above-described method is also provided.

[0150] Those skilled in the art will understand that various aspects of the present invention can be implemented as systems, methods, or program products. Therefore, various aspects of the present invention can be specifically implemented in the following forms: entirely in hardware, entirely in software (including firmware, microcode, etc.), or in a combination of hardware and software, collectively referred to herein as “circuit,” “module,” or “system.”

[0151] The following reference Figure 13 To describe the network device 130 according to this embodiment of the invention. Figure 13 The network device 130 shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of the present invention.

[0152] like Figure 13 As shown, network device 130 can be represented in the form of a general computing device. The components of network device 130 may include, but are not limited to: at least one processing unit 1310, at least one storage unit 1320, and a bus 1330 connecting different system components (including storage unit 1320 and processing unit 1310).

[0153] The storage unit 1320, i.e., the memory, stores program code that can be executed by the processing unit 1310, i.e., the processor, causing the processing unit 1310 to perform the steps described in the "Exemplary Methods" section of this specification according to various exemplary embodiments of the present invention. For example, the processing unit 1310 can perform the steps as described in the above embodiments.

[0154] Storage unit 1320 may include readable media in the form of volatile storage units, such as random access memory (RAM) 13201 and / or cache memory 13202, and may further include read-only memory (ROM) 13203.

[0155] Storage unit 1320 may also include a program / utility 13204 having a set (at least one) of program modules 13205, such program modules 13205 including but not limited to: an operating system, one or more application programs, other program modules and program data, each or some combination of these examples may include an implementation of a network environment.

[0156] Bus 1330 can represent one or more of several types of bus structures, including a memory cell bus or memory cell controller, a peripheral bus, a graphics acceleration port, a processing unit, or a local bus using any of the various bus structures.

[0157] Network device 130 can also communicate with one or more external devices 700 (e.g., keyboard, pointing device, Bluetooth device, etc.), one or more terminal devices that enable users to interact with network device 130, and / or any device that enables network device 130 to communicate with one or more other computing devices (e.g., router, modem, etc.). This communication can be performed via input / output (I / O) interface 1350. Furthermore, network device 130 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 1360. As shown, network adapter 1360 communicates with other modules of network device 130 via bus 1330. Network device 130 can also be connected to display unit 1340 via input / output (I / O) interface 1350. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with network device 130, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0158] From the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, terminal device, or network device, etc.) to execute the methods according to the embodiments of this disclosure.

[0159] In exemplary embodiments of this disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the methods described above is stored. In some possible embodiments, various aspects of the invention may also be implemented as a program product comprising program code that, when the program product is run on a terminal device, causes the terminal device to perform the steps of the various exemplary embodiments of the invention described in the "Exemplary Methods" section of this specification.

[0160] refer to Figure 14As shown, a program product 140 for implementing the above-described method according to an embodiment of the present invention is described. It may employ a portable compact disc read-only memory (CD-ROM) and include program code, and may run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto. In this document, the readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0161] The program product may employ any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of readable storage media include: electrical connections having one or more wires, portable disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0162] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium, capable of sending, propagating, or transmitting programs for use by or in conjunction with an instruction execution system, apparatus, or device.

[0163] The program code contained on the readable medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof.

[0164] Program code for performing the operations of this invention can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java and C++, and conventional procedural programming languages ​​such as C or similar languages. The program code can execute entirely on the user's computing device, partially on the user's device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0165] Furthermore, the above figures are merely illustrative of the processes included in the method according to exemplary embodiments of the present invention, and are not intended to be limiting. It is readily understood that the processes shown in the above figures do not indicate or limit the temporal order of these processes. Additionally, it is readily understood that these processes may be executed synchronously or asynchronously, for example, in multiple modules.

[0166] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

[0167] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A communication method, characterized in that, The method includes: The first network device obtains the uplink resource request from the terminal device; If the current cross-link interference intensity of the terminal device is less than a preset threshold, the first strategy is executed to allocate uplink transmission resources to the terminal device. The first network device acquires the resource configuration information of the second network device at a preset period, so as to determine the association relationship between the first network device and the second network device based on the resource configuration information; Obtain network monitoring data within a preset period; wherein, the network monitoring data includes terminal association data constructed from measurement information and data transmission information reported by terminal devices in each cell corresponding to the first network device; based on the network monitoring data and in combination with the association relationship between the first network device and the second network device, determine whether the terminal device has cross-link interference; The step of determining whether the terminal device has cross-link interference based on the network monitoring data and the association between the first network device and the second network device includes: comparing the resource configuration information, signal strength data and data transmission rate data of the first terminal device in the first cell and the second terminal device in the second cell corresponding to the first network device, so as to determine whether the first terminal device or the second terminal device has cross-link interference from the second network device based on the data comparison.

2. The communication method according to claim 1, characterized in that, The method further includes: If the current cross-link interference intensity is greater than a preset threshold, the second strategy is executed to configure the uplink transmission resources for the terminal device; wherein, the second strategy includes filtering time slots that have not suffered cross-link interference.

3. The communication method according to claim 2, characterized in that, The execution of the second strategy to configure the uplink transmission resources for the terminal device includes: Select a time slot other than the uplink time slot corresponding to the target downlink time slot, and / or a time slot other than the uplink time slot corresponding to the target special time slot, and configure the uplink transmission resources.

4. The communication method according to claim 2, characterized in that, The method further includes: Obtain the uplink transmission parameters of the terminal device based on the uplink transmission resources; When the uplink transmission parameters do not meet the preset service requirements, a third strategy is executed to configure the uplink transmission resources for the terminal device; or If configuring the uplink transmission resources for the terminal device according to the second strategy fails, the third strategy is executed to configure the uplink transmission resources for the terminal device. The third strategy includes negotiating with a related second network device to stop or reduce cross-link interference.

5. The communication method according to claim 4, characterized in that, The execution of the third strategy to configure the uplink transmission resources for the terminal device includes: Send an interference avoidance request to the second network device; Obtain the avoidance confirmation information fed back by the second network device, and configure the uplink transmission resources for the terminal device based on the avoidance confirmation information.

6. The communication method according to claim 5, characterized in that, The interference avoidance request includes any one or a combination of any number of the following: the terminal device's service priority information, cross-link interference indicator, time slot interference information, beam negotiation information, and time negotiation information.

7. The communication method according to claim 6, characterized in that, in, The service priority information includes any one or a combination of any of the following: service requirement information, traffic bit rate parameters, and maximum packet loss rate parameters.

8. The communication method according to claim 5, characterized in that, The avoidance confirmation information includes: first avoidance confirmation information or second avoidance confirmation information; wherein, the first avoidance confirmation information includes negotiation confirmation information of complete agreement; and the second avoidance confirmation information includes negotiation confirmation information of partial agreement.

9. The communication method according to claim 5, characterized in that, The method further includes: Obtain the avoidance request confirmation information fed back by the second network device, and execute the second strategy to configure the uplink transmission resources for the terminal device; wherein the avoidance request confirmation information includes a message to terminate the negotiated time slot.

10. The communication method according to claim 9, characterized in that, The avoidance request confirmation information includes any one or a combination of any number of the following: a shutdown indicator, a beam identifier, and time information.

11. The communication method according to claim 4, characterized in that, The execution of the third strategy to configure the uplink transmission resources for the terminal device includes: Send an interference avoidance request to the second network device; Obtain the obstacle avoidance confirmation information fed back by the second network device; wherein, the obstacle avoidance confirmation information includes third obstacle avoidance confirmation information carrying obstacle avoidance rejection information; The uplink transmission resources are configured for the terminal device according to the fourth strategy; wherein the fourth strategy includes selecting time slots that have not suffered cross-link interference, and / or selecting a combination of time slots whose total cross-link interference intensity is less than a preset threshold.

12. The communication method according to any one of claims 5, 8, or 11, characterized in that, The avoidance confirmation information includes: any one or a combination of any of the following: confirmation shutdown indicator, beam negotiation result, and time negotiation result.

13. The communication method according to claim 1, characterized in that, The resource configuration information of the network device includes: subcarrier spacing, and any one or any combination of the following parameters based on TDD UL-DL mode: DL-UL transmission period, number of downlink time slots, number of downlink symbols, number of uplink time slots, and number of uplink symbols.

14. The communication method according to claim 1, characterized in that, The measurement information includes: measurement identifier; the serving cell identifier, serving cell measurement result, and beam measurement result corresponding to the serving cell measurement object; wherein, the serving cell measurement result includes any one or any combination of wireless signal strength, wireless signal received power, and signal-to-interference-plus-noise ratio parameters; the beam measurement result includes: beam measurement result based on SS / PBCH block, and / or beam measurement result based on CSI-RS.

15. The communication method according to claim 1, characterized in that, The terminal-associated data includes at least: uplink transmission resource configuration data, measurement configuration information, and uplink data transmission rate; wherein, the uplink transmission resource configuration data includes time-domain resources and frequency-domain resources; the time-domain resources include uplink transmission time slots, type information, identification information, and length information; the frequency-domain resources include: resource allocation type information and frequency-domain resource configuration information; the measurement configuration information includes: measurement identifier, serving cell measurement object, serving cell identifier corresponding to the serving cell measurement object, serving cell measurement result, and beam measurement result; wherein, the serving cell measurement result includes: any one or any combination of wireless signal strength, wireless signal received power, and signal-to-interference-plus-noise ratio parameters; the beam measurement result includes: beam measurement result based on SS / PBCH block, and / or beam measurement result based on CSI-RS.

16. The communication method according to any one of claims 2-15, characterized in that, The first network device interacts with the second network device via the Xn interface.

17. The communication method according to claim 1, characterized in that, The uplink transmission resources allocated to the terminal device include: uplink frame structure configuration, uplink transmission resource configuration information, and uplink carrier configuration configured in TDD mode; wherein, the uplink transmission resource configuration information includes: time domain resources and frequency domain resources; the time domain resources include uplink transmission time slots, resource allocation type, and duration; the frequency domain resources include: resource allocation type information and frequency domain resource configuration information.

18. A communication method, characterized in that, The method includes: The second network device receives the interference avoidance request from the first network device; Evaluate whether the execution result of the interference avoidance request meets the current business requirements, generate feedback information based on the evaluation result, and send it to the first network device; The first network device acquires the resource configuration information of the second network device at a preset period, so as to determine the association relationship between the first network device and the second network device based on the resource configuration information. Obtain network monitoring data within a preset period; wherein, the network monitoring data includes measurement information and terminal association data constructed from data transmission information reported by terminal devices in each cell corresponding to the first network device; Based on the network monitoring data and the association between the first network device and the second network device, it is determined whether the terminal device has cross-link interference. The step of determining whether the terminal device has cross-link interference based on the network monitoring data and the association between the first network device and the second network device includes: comparing the resource configuration information, signal strength data and data transmission rate data of the first terminal device in the first cell and the second terminal device in the second cell corresponding to the first network device, so as to determine whether the first terminal device or the second terminal device has cross-link interference from the second network device based on the data comparison.

19. The communication method according to claim 18, characterized in that, The interference avoidance request includes any one or a combination of any number of the following: the terminal device's service priority information, cross-link interference indicator, time slot interference information, beam negotiation information, and time negotiation information.

20. The communication method according to claim 18 or 19, characterized in that, The evaluation of whether the execution result of the interference avoidance request meets the current business requirements includes: Based on the resource configuration information, measurement information, and data transmission information of the terminal device corresponding to the second network device, it is determined whether the current service requirements are met after executing the interference avoidance request, and the feedback information is generated based on the determination result.

21. The communication method according to claim 20, characterized in that, The feedback information includes: a first avoidance confirmation message, a second avoidance confirmation message, or a third avoidance confirmation message; wherein, the first avoidance confirmation message includes a negotiation confirmation message of complete agreement; the second avoidance confirmation message includes a negotiation confirmation message of partial agreement; and the third avoidance confirmation message includes a refusal to avoid.

22. The communication method according to claim 21, characterized in that, The avoidance confirmation information includes: any one or a combination of any combination of the following: confirmation shutdown indicator, beam negotiation result, and time negotiation result.

23. The communication method according to claim 18, characterized in that, When the second network device executes the interference avoidance request, the method further includes: Obtain current service monitoring data; if, based on the current service monitoring data, it is determined that the current network resources cannot meet the updated service requirements, stop executing the interference avoidance request and reallocate network resources according to the current service monitoring data; and Send a clearance request confirmation message to the first network device.

24. The communication method according to claim 23, characterized in that, The avoidance request confirmation information includes any one or a combination of any number of the following: a shutdown indicator, a beam identifier, and time information.

25. The communication method according to any one of claims 18-24, characterized in that, The second network device interacts with the first network device via the Xn interface.

26. A communication device, characterized in that, include: The uplink resource request acquisition module is used by the first network device to acquire the uplink resource request of the terminal device. The first strategy execution module is used to execute the first strategy to allocate uplink transmission resources to the terminal device if the current cross-link interference intensity of the terminal device is less than a preset threshold value. The first strategy execution module is used to obtain the resource configuration information of the second network device at a preset period, so as to determine the association relationship between the first network device and the second network device based on the resource configuration information. In addition, network monitoring data within a preset period is acquired; wherein the network monitoring data includes terminal association data constructed from measurement information and data transmission information reported by terminal devices in each cell corresponding to the first network device; based on the network monitoring data and in combination with the association relationship between the first network device and the second network device, it is determined whether the terminal device has cross-link interference; Furthermore, data comparison is performed based on the resource configuration information, signal strength data, and data transmission rate data of the first terminal device in the first cell and the second terminal device in the second cell corresponding to the first network device, so as to determine that the first terminal device or the second terminal device has cross-link interference from the second network device.

27. A communication device, characterized in that, include: An interference avoidance request receiving module is used for the second network device to obtain the interference avoidance request from the first network device. The feedback information processing module is used to evaluate whether the execution result of the interference avoidance request meets the current business requirements, generate feedback information based on the evaluation result, and send it to the first network device. The first network device is used to acquire resource configuration information of the second network device at a preset period, so as to determine the association relationship between the first network device and the second network device based on the resource configuration information. In addition, network monitoring data within a preset period is acquired; wherein the network monitoring data includes terminal association data constructed from measurement information and data transmission information reported by terminal devices in each cell corresponding to the first network device; based on the network monitoring data and in combination with the association relationship between the first network device and the second network device, it is determined whether the terminal device has cross-link interference; Furthermore, data comparison is performed based on the resource configuration information, signal strength data, and data transmission rate data of the first terminal device in the first cell and the second terminal device in the second cell corresponding to the first network device, so as to determine that the first terminal device or the second terminal device has cross-link interference from the second network device.

28. A storage medium, characterized in that, Includes a program or instructions that, when executed, implement the communication method as described in any one of claims 1 to 17, 18 to 25.

29. A network device, characterized in that, include: processor; as well as Memory for storing the executable instructions of the processor; The processor is configured to execute the communication method of any one of claims 1 to 17, or 18 to 25, by executing the executable instructions.

30. A communication system, characterized in that, It includes the first network device and the second network device as described in any one of claims 26-27.

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