Uplink interference suppression method, device, equipment, storage medium and program product

Abstract

The invention relates to the technical field of wireless, and provides an uplink interference suppression method, device and equipment, a storage medium and a program product, the uplink interference suppression method is applied to a coordinated control unit, and the coordinated control unit is arranged on the ground and is in communication connection with a satellite; the uplink interference suppression method comprises the following steps: before a satellite enters a wave position area to be served, controlling a base station in the satellite to enter a first state; wherein the first state is used for indicating the base station to execute uplink interference measurement under the condition that uplink and downlink scheduling is not carried out, and sending a measurement result to the coordinated control unit; receiving a measurement result sent by the base station, and determining an uplink interference judgment result based on the measurement result; sending the uplink interference judgment result to the base station; the uplink interference judgment result is used for indicating the base station to perform uplink interference suppression. Through the cooperative control unit arranged on the ground, the base station in the satellite can be prevented from frequently performing uplink interference measurement and analysis, so that the on-satellite resource consumption of the on-satellite base station during uplink interference suppression is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless, in particular to an uplink interference suppression method, device, equipment, storage medium and program product. BACKGROUND

[0002] In a satellite-terrestrial integrated combination scenario, satellite networks and terrestrial cellular networks share spectrum resources and cooperatively provide wireless communication services to users. Satellite-terrestrial spectrum sharing can improve the utilization rate of wireless spectrum resources, but at the same time, it also faces the challenge of mutual interference between non-terrestrial networks (NTN) and terrestrial networks (TN).

[0003] For a signal transceiving network composed of TN / NTN base stations, TN / NTN terminals, any transmitting signal may interfere with non-target receiving terminals. Therefore, it is necessary to analyze the uplink interference of TN terminals, TN base stations and other interference sources on NTN base stations. The uplink interference analysis is usually that the satellite base station measures the noise and interference (NI) / signal-to-interference-plus-noise ratio (SINR) value of the received signal in real time through the physical layer, evaluates the measurement value through the scheduling layer, and avoids the time-frequency domain resources whose interference exceeds the demodulation threshold, thereby reducing the uplink interference.

[0004] The traditional uplink interference analysis scheme can reduce the influence of uplink interference to a certain extent, but it relies on frequent interference detection and analysis processes, resulting in a large consumption of on-board resources of the satellite base station when suppressing uplink interference. SUMMARY

[0005] The present application aims to at least solve one of the technical problems in the related art. To this end, the present application provides an uplink interference suppression method, device, equipment, storage medium and program product, which solves the problem of consuming a large amount of on-board resources of the satellite base station when suppressing uplink interference due to frequent interference detection and analysis, thereby saving the on-board resource consumption of the satellite base station when suppressing uplink interference.

[0006] The uplink interference suppression method according to the first aspect of the present application is applied to a coordination unit, which is arranged on the ground and in communication connection with a satellite. The uplink interference suppression method comprises: Before the satellite enters the wave position area to be served, the base station in the satellite is controlled to enter a first state; wherein the first state is used to indicate that the base station performs uplink interference measurement without uplink and downlink scheduling, and sends the measurement result to the coordination unit. receiving the measurement result sent by the base station, determining an uplink interference judgment result based on the measurement result; sending the uplink interference judgment result to the base station; the uplink interference judgment result is used for instructing the base station to perform uplink interference suppression.

[0007] According to one embodiment of the present application, the determination of the uplink interference judgment result based on the measurement result comprises: determining a frequency domain interference judgment result according to noise and interference (NI) information in the measurement result; determining a time domain interference judgment result based on the frequency domain interference judgment result.

[0008] According to one embodiment of the present application, the NI information comprises NI values of at least one resource block (RB) at at least one preset time point; and the determination of the frequency domain interference judgment result according to the NI information in the measurement result comprises: determining a proportion of target RBs to total RBs for each preset frequency domain range at each preset time point in the NI information of the measurement result; the target RBs are RBs with NI values exceeding a preset threshold value; and the preset frequency domain range comprises at least one RB; determining the frequency domain interference judgment result based on each proportion and a preset threshold value.

[0009] According to one embodiment of the present application, the frequency domain interference judgment result comprises judgment results of at least one preset frequency domain range at at least one preset time point; and the judgment result is the existence of uplink interference or the non-existence of uplink interference. The determination of the time domain interference judgment result based on the frequency domain interference judgment result comprises: determining, for each preset frequency domain range in the frequency domain interference judgment result, a ratio of the number of judgment results indicating the existence of uplink interference to the total number of judgment results; determining the time domain interference judgment result based on each ratio and preset threshold information; the preset threshold information comprises a first threshold value and a second threshold value; and the first threshold value is different from the second threshold value.

[0010] According to one embodiment of the present application, before the sending of the uplink interference judgment result to the base station, the method further comprises: controlling the base station in the satellite to enter a second state; wherein the second state is used for instructing the base station to resume uplink and downlink scheduling.

[0011] According to one embodiment of the present application, after the sending of the uplink interference judgment result to the base station, the method further comprises: sending interference sampling configuration information to the base station; the interference sampling configuration information is used to instruct the base station to perform uplink interference measurement based on a preset time interval, and send new measurement results to the coordination unit.

[0012] According to one embodiment of the present application, after the interference sampling configuration information is sent to the base station, the method further comprises: determining an uplink interference suppression scheme of the base station based on a fluctuation degree between the new measurement results and the measurement results; controlling the base station to perform uplink interference suppression based on the uplink interference suppression scheme.

[0013] According to the uplink interference suppression method of the second aspect of the present application, the method is applied to a base station in a satellite, and the satellite is in communication connection with a coordination unit arranged on the ground; the method comprises: in a case where it is determined to enter a first state, performing uplink interference measurement to obtain measurement results; the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling, and send the measurement results to the coordination unit; sending the measurement results to the coordination unit; the measurement results are used to instruct the coordination unit to perform uplink interference analysis, and send an uplink interference decision result obtained by the analysis to the base station; receiving the uplink interference decision result sent by the coordination unit, and performing uplink interference suppression based on the uplink interference decision result.

[0014] According to one embodiment of the present application, after the uplink interference decision result sent by the coordination unit is received, the method further comprises: receiving interference sampling configuration information sent by the coordination unit, performing periodic uplink interference measurement based on the interference sampling configuration information, and sending new measurement results to the coordination unit after each uplink interference measurement is completed.

[0015] According to one embodiment of the present application, after the uplink interference decision result sent by the coordination unit is received, the method further comprises: sending the uplink interference decision result to a satellite on the same orbit or with the same coverage.

[0016] According to the uplink interference suppression device of the third aspect of the present application, the device comprises: a control module, configured to control a base station in a satellite to enter a first state before the satellite enters a wave position area to be served; the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling, and send measurement results to a coordination unit; determining module, configured to receive a measurement result sent by the base station, and determine an uplink interference judgment result based on the measurement result; a first sending module, configured to send the uplink interference judgment result to the base station, where the uplink interference judgment result is used to instruct the base station to perform uplink interference suppression.

[0017] According to the uplink interference suppression device provided in the fourth aspect of the present application, the device comprises: a performing module, configured to perform uplink interference measurement to obtain a measurement result when it is determined that the first state is entered, where the first state is used to instruct the base station to perform uplink interference measurement without uplink-downlink scheduling, and the measurement result is sent to the coordination control unit; a second sending module, configured to send the measurement result to the coordination control unit, where the measurement result is used to instruct the coordination control unit to perform uplink interference analysis, and the uplink interference judgment result obtained through the analysis is sent to the base station; a suppressing module, configured to receive the uplink interference judgment result sent by the coordination control unit, and perform uplink interference suppression based on the uplink interference judgment result.

[0018] According to the network device provided in the fifth aspect of the present application, the device comprises a memory, a transceiver, and a processor; the memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations: perform uplink interference measurement to obtain a measurement result when it is determined that the first state is entered, where the first state is used to instruct the base station to perform uplink interference measurement without uplink-downlink scheduling, and the measurement result is sent to the coordination control unit; send the measurement result to the coordination control unit, where the measurement result is used to instruct the coordination control unit to perform uplink interference analysis, and the uplink interference judgment result obtained through the analysis is sent to the base station; receive the uplink interference judgment result sent by the coordination control unit, and perform uplink interference suppression based on the uplink interference judgment result.

[0019] According to the electronic device provided in the sixth aspect of the present application, the device comprises a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and the processor implements the uplink interference suppression method as described above when executing the computer program.

[0020] According to the storage medium provided in the seventh aspect of the present application, the storage medium is a non-transitory computer readable storage medium, and a computer program is stored on the storage medium, and the computer program is executed by a processor to implement the uplink interference suppression method as described above.

[0021] According to the computer program product provided by the eighth aspect of the embodiments of the present application, the computer program is executed by a processor to implement the uplink interference suppression method according to any one of the above.

[0022] The one or more technical solutions described above in the embodiments of the present application have at least the following technical effects: By setting the coordination control unit on the ground, before the satellite enters the wave position area to be served, the base station connected in the satellite is controlled to enter the first state, so as to instruct the base station to perform uplink interference measurement and send the measurement result to the coordination control unit without uplink and downlink scheduling. Further, the coordination control unit can receive the measurement result sent by the base station, and determine the uplink interference decision result based on the measurement result. Then, the coordination control unit can send the uplink interference decision result to the base station, so as to instruct the base station to perform uplink interference suppression according to the uplink interference decision result. Therefore, by setting the coordination control unit on the ground, the base station in the satellite can be controlled to perform uplink interference measurement before entering the territory, so as to avoid the base station in the satellite from frequently performing uplink interference measurement and analysis, and the uplink interference analysis originally performed on the base station in the satellite is moved to the coordination control unit on the ground for execution, so as to save the resources used by the base station in the satellite for uplink interference analysis. Therefore, the consumption of on-board resources of the on-board base station when performing uplink interference suppression can be effectively saved.

[0023] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0025] Figure 1 is one of the flowcharts of the uplink interference suppression method provided by the embodiments of the present application.

[0026] Figure 2 is a schematic diagram of the frequency domain interference decision result in the uplink interference suppression method provided by the embodiments of the present application.

[0027] Figure 3 is a time domain NI change schematic diagram in the uplink interference suppression method provided by the embodiments of the present application.

[0028] Figure 4 is the second flowchart of the uplink interference suppression method provided by the embodiments of the present application.

[0029] Figure 5 is a schematic diagram of uplink interference analysis networking provided by an embodiment of the present application.

[0030] Figure 6 is a structural schematic diagram of a network device provided by the present application.

[0031] Figure 7 is a structural schematic diagram of an electronic device provided by the present application. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0033] It should be noted that the traditional uplink interference analysis method has the following two problems: 1. In actual application, the beam coverage area is very large, and the uplink interference is the lumped interference of all UEs in the beam position. Such interference does not change due to the change of a few UEs, so the uplink interference is a slowly varying parameter at the beam position level.

[0034] Therefore, the spaceborne base station does not have to measure and analyze the uplink interference all the time (the resources on the satellite are valuable and not easy to expand). In addition, when multiple satellites are networked, the satellites on the same orbit / adjacent orbits (same coverage) do not have to measure and analyze the interference, but can share the inter-satellite interference data.

[0035] 2. The interference analysis method is relatively fixed and does not consider the complexity of engineering implementation, nor can it adapt to different spectrum reuse strategies.

[0036] Based on this, the present application provides an uplink interference suppression method, device, equipment, storage medium and program product.

[0037] It should be noted that all actions of obtaining signals, information or data in the present application are performed under the premise of complying with the corresponding data protection regulations and policies of the place, and with the authorization given by the owner of the corresponding device.

[0038] Figure 1 is one of the flowcharts of the uplink interference suppression method provided by an embodiment of the present application, as shown in the figure, the uplink interference suppression method comprises: Figure 1 ​Step 110, before the satellite enters the wave position area to be served, the base station in the satellite is controlled to enter a first state; wherein the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling, and send the measurement result to the coordination control unit.

[0039] Step 120, receiving the measurement result sent by the base station, and determining an uplink interference decision result based on the measurement result.

[0040] Step 130, sending the uplink interference decision result to the base station; the uplink interference decision result is used to instruct the base station to perform uplink interference suppression.

[0041] It should be noted that the uplink interference suppression method provided by the embodiments of the present application can be applied to a coordination control unit, which is arranged on the ground and can be in communication connection with one or more satellites. In the present application, the coordination control unit can also be defined as a first coordination control unit.

[0042] It should be noted that each satellite in the present application can include a base station (also referred to as a satellite-borne base station), and the satellite-borne base station can include at least a first state and a second state. In the first state, the satellite-borne base station does not perform any uplink and downlink scheduling, at this time, the NTN terminal in the wave position does not send any signal to the satellite-borne base station, and all the signals received by the satellite-borne base station are regarded as interference. The second state is the general working state of the base station.

[0043] Specifically, a coordination control unit is additionally arranged on the ground, which is used to collect the full-bandwidth uplink interference data measured by the satellite in the first state, and detect the interference data through the satellite in the second state. The frequency band and time period information of the interference are analyzed through the frequency domain block and time domain double threshold method, and the information is shared with all the satellites entering the range.

[0044] More specifically, before a certain satellite is about to enter the visible range of the coordination control unit (i.e. the communication window is about to open), that is, before the satellite enters the wave position area to be served (i.e. the designated service area of the satellite) (or referred to as before the satellite enters), the coordination control unit can be in communication connection with the satellite in advance, and by sending an instruction to the base station in the satellite, instructing the base station in the satellite to switch its current state to the first state.

[0045] Further, after the satellite-borne base station enters the first state (specifically, after receiving the instruction sent by the coordination control unit and completing the state switching), the physical layer in the satellite-borne base station measures the noise and interference (NI) values of all the service wave position full-bandwidth resource blocks (Resource Block, RB) in real time, with a time domain granularity of 1 second, thereby completing the uplink interference measurement and sending the obtained NI information as the measurement result to the coordination control unit through the feeder link.

[0046] The NI information includes at least one NI value of at least one resource block (RB) at a preset time point.

[0047] Specifically, the dimension of the NI value in the present application can be [wave position identifier (ID)] [time (second)] [full bandwidth (RB)].

[0048] The full bandwidth in the present application can be composed of multiple RBs, for example, 106 RBs such as RB0-RB105.

[0049] The present application can also determine one or more frequency domain ranges from the full bandwidth range according to the demand in advance, and each preset frequency domain range is composed of multiple RBs, for example, each preset frequency domain range can be composed of 13 RBs.

[0050] Thus, the coordination unit can receive the measurement result sent by the satellite-based base station.

[0051] Further, the coordination unit can make time-frequency domain interference judgment according to the NI information in the measurement result, according to the set parameters and threshold values, and store the uplink interference judgment result corresponding to the time-frequency domain interference judgment result. The uplink interference judgment result includes the frequency domain interference judgment result and the time domain interference judgment result.

[0052] Further, the coordination unit can send the obtained uplink interference judgment result to the base station in the satellite (i.e. the satellite-based base station).

[0053] It should be noted that in multi-satellite networking, the coordination unit in the present application can also send the obtained uplink interference judgment result to other satellites on the same orbit / adjacent orbit (same coverage) in multi-satellite networking, so that the satellites on the same orbit / adjacent orbit (same coverage) in multi-satellite networking do not have to all perform interference measurement and analysis, but can perform inter-satellite interference data sharing.

[0054] Further, the satellite-based base station can perform interference avoidance according to the time-frequency domain interference information in the uplink interference judgment result of each wave position, thereby realizing uplink interference suppression.

[0055] According to the uplink interference suppression method of the embodiment of the present application, the ground-based coordination control unit controls the base station in the satellite to enter the first state before the satellite enters the service area, so as to instruct the base station to perform uplink interference measurement and send the measurement result to the coordination control unit without uplink and downlink scheduling. Further, the coordination control unit can receive the measurement result sent by the base station and determine the uplink interference decision result based on the measurement result. Then, the coordination control unit sends the uplink interference decision result to the base station, so as to instruct the base station to perform uplink interference suppression according to the uplink interference decision result. In this way, the ground-based coordination control unit can control the base station in the satellite to perform uplink interference measurement before entering the service area, so as to avoid frequent uplink interference measurement and analysis of the base station in the satellite. Moreover, the uplink interference analysis performed on the base station in the satellite is moved to the ground-based coordination control unit, so as to save the resources used for uplink interference analysis of the base station in the satellite. Therefore, the consumption of on-board resources of the on-board base station during uplink interference suppression can be effectively saved.

[0056] In one embodiment, determining the uplink interference decision result based on the measurement result comprises: determining the frequency domain interference decision result according to the noise and interference (NI) information in the measurement result; determining the time domain interference decision result based on the frequency domain interference decision result.

[0057] Specifically, the interference decision threshold can be preset as dBm (decibel milliwatt), the frequency domain interference analysis granularity can be preset as MHz, and the frequency domain interference proportion threshold can be preset as .

[0058] In this way, the coordination control unit can determine whether the current bandwidth has interference according to the relationship between the proportion of RBs exceeding the interference decision threshold in the specified bandwidth (i.e., the preset frequency domain range) and the frequency domain interference proportion threshold . In this way, the frequency domain interference decision result of whether each bandwidth has interference at each preset time point (e.g., every second) can be determined.

[0059] Further, the coordination control unit can determine whether each bandwidth (i.e., each preset frequency domain range) is available at different times (corresponding to different preset time points) according to the result of whether each bandwidth has interference at each preset time point in the frequency domain interference decision result, so as to complete time domain interference decision and obtain the time domain interference decision result.

[0060] The coordination control unit in the application can accurately determine the uplink interference decision result based on the result of the uplink interference measurement performed by the satellite-based base station in the first state, and then send the uplink interference decision result to the base station, so as to instruct the base station to perform uplink interference suppression according to the uplink interference decision result. Thus, by using the coordination control unit arranged on the ground, the base station in the satellite can be controlled to perform uplink interference measurement before entering the territory, so as to avoid the base station in the satellite from frequently performing uplink interference measurement and analysis, and move the uplink interference analysis originally performed on the base station in the satellite to the coordination control unit on the ground, thereby saving the resources used by the base station in the satellite for uplink interference analysis. Therefore, the consumption of on-satellite resources of the satellite-based base station when performing uplink interference suppression can be effectively saved.

[0061] In one embodiment, the frequency domain interference decision result is determined according to the noise and interference (NI) information in the measurement result, including: For each preset frequency domain range at each preset time point in the NI information of the measurement result, the proportion of the target RB to the total RB is determined respectively; the target RB is an RB whose NI value exceeds a preset threshold value; the preset frequency domain range includes at least one RB; The frequency domain interference decision result is determined based on the proportions and the preset threshold value.

[0062] Specifically, when the frequency domain interference decision result is determined according to the NI information in the measurement result, for each preset frequency domain range at each preset time point in the NI information of the measurement result, the coordination control unit can determine the proportion of the number of RBs whose NI value exceeds the preset threshold value in the preset frequency domain range to the total number of RBs in the preset frequency domain range.

[0063] For example, for a specified bandwidth (i.e., a preset frequency domain range, such as a bandwidth formed by the 10th RB to the 22nd RB) in a second in the uplink interference measurement result, it can be determined whether each RB exceeds the interference decision threshold , and the number of RBs exceeding the interference decision threshold is subjected to ratio operation with the total number of RBs in the specified bandwidth (for example, the 10th RB to the 22nd RB, and the total number of RBs is 13), to obtain the proportion of the target RB to the total RB in the specified bandwidth.

[0064] Alternatively, the number of target RBs can be converted into frequency domain information, and the number of total RBs can be converted into frequency domain information, and the two frequency domain information can be subjected to ratio operation to obtain the proportion.

[0065] Thus, the proportion of the target RB to the total RB in each preset frequency domain range at each preset time point can be obtained. For example, if there are four preset time points, and there are three preset frequency domain ranges in each time point, then the values of 12 proportions can be determined.

[0066] Further, the proportion of each preset frequency domain range can be compared with the frequency domain interference proportion threshold respectively If the proportion is greater than the frequency domain interference proportion threshold , it is determined that the preset frequency domain range has uplink interference, and the preset frequency domain range can be marked as 1; if the proportion is less than or equal to the frequency domain interference proportion threshold , it is determined that the preset frequency domain range has no uplink interference, and the preset frequency domain range can be marked as 0.

[0067] Figure 2 is a schematic diagram of the frequency domain interference decision result in the uplink interference suppression method provided by the embodiment of the present application, Figure 2 The horizontal axis is the time domain and the vertical axis is the frequency domain; specifically, if 4 preset time points (i.e., the satellite base station performs uplink interference measurement at 4 different time points) are included, 3 preset frequency domain ranges (the bandwidth of each preset frequency domain range is 5 megahertz (M)) are determined in each preset time point, and the decision result is marked as 1 if there is uplink interference and marked as 0 if there is no uplink interference. The frequency domain interference decision result is as shown in Figure 2 .

[0068] In the present application, the coordination control unit can accurately determine the frequency domain interference decision result based on the NI information in the measurement result obtained by the satellite base station in the first state performing uplink interference measurement, and further determine the time domain interference decision result based on the frequency domain interference decision result, thereby obtaining the uplink interference decision result. By sending the uplink interference decision result to the base station, the base station can be instructed to perform uplink interference suppression according to the uplink interference decision result. In this way, by setting the coordination control unit on the ground, the base station in the satellite can be controlled to perform uplink interference measurement before entering the territory, avoiding the base station in the satellite from frequently performing uplink interference measurement and analysis, and moving the original uplink interference analysis performed on the base station in the satellite to the coordination control unit on the ground, which can save the resources used by the base station in the satellite for uplink interference analysis. Therefore, the consumption of on-board resources of the satellite base station when performing uplink interference suppression can be effectively saved.

[0069] In one embodiment, based on the frequency domain interference decision result, the time domain interference decision result is determined, including: For each preset frequency domain range in the frequency domain interference decision result, the ratio of the number of decision results indicating that there is uplink interference to the total number of decision results is determined respectively; Based on the ratio and preset threshold information, the time domain interference decision result is determined; the preset threshold information includes a first threshold value and a second threshold value; the first threshold value and the second threshold value are different.

[0070] It should be noted that in the time domain, since the satellite moves regularly, the satellite has a process of moving from far to near and then from near to far relative to the interference source, and therefore it can be assumed that the interference is gradually changed in time rather than suddenly changed. Specifically, as shown in Figure 3 , Figure 3 is a time-domain NI change diagram in the uplink interference suppression method provided by the embodiments of the present application, Figure 3 where the horizontal axis represents the time domain, the vertical axis represents the NI value, and the interference threshold, i.e., the interference decision threshold, is . The present application can pre-set the time-domain interference proportion threshold to be , . Among them, represents the lower limit of the threshold, represents the upper limit of the threshold.

[0071] Therefore, when determining the time-domain interference decision result based on the frequency-domain interference decision result, for the same preset frequency domain range at each preset time (for example, the first 5M bandwidth at 4 different preset time points), the coordination control unit can determine the ratio of the number of decision results indicating the existence of uplink interference to the total number of decision results (for example, the total number of decision results is 4 at 4 different preset time points, and if the decision result of one of the 4 preset time points is that there is uplink interference, then the ratio corresponding to the preset frequency domain range is 0.25). If there are 3 preset frequency domain ranges in each preset time point, then the number of determined ratios is 3.

[0072] Further, for each ratio, the coordination control unit can compare it with the preset threshold information to obtain the time-domain interference decision result. The preset threshold information is the time-domain interference proportion threshold described above, and the first threshold value and the second threshold value correspond to the upper limit and the lower limit of the time-domain interference proportion threshold.

[0073] Specifically, assuming that the ratio (i.e., the proportion of the time domain that is unavailable) is , when (the full-time available threshold), it is considered that the current wave position (specifically, the frequency domain range corresponding to the ratio in the current wave position) is available at all times, when , it is considered that the time period of the current wave position exceeding the interference threshold is unavailable, and the other time periods are available. When (the full-time unavailable threshold), it is considered that the current wave position is unavailable at all times.

[0074] The application uses a double threshold method, which can adapt to different time domain interference analysis strategies by adjusting the value of the double threshold, so that the time domain interference judgment result can be accurately determined based on the frequency domain interference judgment result, thereby obtaining the uplink interference judgment result, so that by sending the uplink interference judgment result to the base station, the base station can be instructed to perform uplink interference suppression according to the uplink interference judgment result. Therefore, through the coordination unit set on the ground, the base station in the satellite can be controlled to perform uplink interference measurement before entering the territory, avoiding the satellite base station from frequently performing uplink interference measurement and analysis, and moving the original uplink interference analysis performed on the satellite base station to the ground coordination unit for execution, which can save the resources used by the satellite base station for uplink interference analysis. Therefore, the on-board resource consumption of the satellite base station when performing uplink interference suppression can be effectively saved.

[0075] In one embodiment, before sending the uplink interference judgment result to the base station, it further comprises: controlling the base station in the satellite to enter a second state; wherein the second state is used to instruct the base station to restore the uplink and downlink scheduling.

[0076] Specifically, after obtaining the uplink interference judgment result (at this time the satellite has not yet entered the territory), the coordination unit can control the base station in the satellite to enter a second state, that is, configure the on-board base station to enter a second state, thereby instructing the on-board base station to restore the uplink and downlink scheduling, and then sending the uplink interference judgment result to the on-board base station.

[0077] Therefore, after receiving the uplink interference judgment result, the on-board base station can perform interference avoidance according to the time and frequency domain interference information of each wave position in the uplink interference judgment result.

[0078] In the application, before sending the uplink interference judgment result to the base station, the coordination unit controls the base station in the satellite to enter a second state to instruct the base station to restore the uplink and downlink scheduling, so that the on-board base station can restore the uplink and downlink scheduling in time and ensure the smooth execution of the scheduling work.

[0079] In one embodiment, after sending the uplink interference judgment result to the base station, it further comprises: sending interference sampling configuration information to the base station; the interference sampling configuration information is used to instruct the base station to perform uplink interference measurement based on a preset time interval, and send the new measurement result to the coordination unit.

[0080] It should be noted that in the application, after sending the uplink interference judgment result to the base station, the coordination unit can also send interference sampling configuration information to the on-board base station to instruct the on-board base station to perform uplink interference measurement based on a preset time interval, and send the new measurement result to the coordination unit.

[0081] Specifically, the spaceborne base station performs uplink interference measurement every other long period according to the interference sampling configuration information, and sends the new measurement result to the coordination unit through the feeder link.

[0082] Further, the coordination unit can compare the new measurement result with the original measurement result, and determine the uplink interference suppression scheme of the spaceborne base station according to the comparison result.

[0083] After the coordination unit sends the uplink interference decision result to the base station, it can also send the interference sampling configuration information to the spaceborne base station to instruct the spaceborne base station to perform uplink interference measurement based on a preset time interval and send the new measurement result to the coordination unit, thereby avoiding the spaceborne base station from frequently performing uplink interference measurement, and effectively saving the on-board resource consumption of the spaceborne base station when performing uplink interference suppression.

[0084] In one embodiment, after sending the interference sampling configuration information to the base station, it further comprises: determining the uplink interference suppression scheme of the base station based on the fluctuation degree between the new measurement result and the measurement result; controlling the base station to perform uplink interference suppression based on the uplink interference suppression scheme.

[0085] Specifically, the coordination unit can compare the new measurement result with the last measurement result after receiving the new measurement result sent by the spaceborne base station each time, thereby determining the fluctuation degree of information between the two measurement results. The fluctuation degree can be represented by the difference degree of data between the two measurement results (for example, the proportion of data that has changed between the two measurement results to the total data), or by other information that can be determined from the two measurement results and can be used to represent the fluctuation degree of data (for example, whether the amount of data that has changed is greater than a pre-set threshold).

[0086] If it is determined according to the fluctuation degree that there is no change or little change between the two measurement results, the last determined uplink interference decision result is sent to the spaceborne base station or the spaceborne base station is instructed to perform interference avoidance according to the existing uplink interference decision result.

[0087] If it is determined according to the fluctuation degree that there is great change between the two measurement results, the spaceborne base station is reconfigured to enter the first state, and then uplink interference decision is made according to the measurement result obtained by the spaceborne base station in the first state, and the new uplink interference decision result is sent to the spaceborne base station.

[0088] The application can determine the uplink interference suppression scheme of the satellite base station according to the fluctuation degree between the measurement results of the two times after receiving the new measurement result each time, thereby avoiding the satellite base station from frequently performing uplink interference measurement, and effectively saving the on-satellite resource consumption of the satellite base station when performing uplink interference suppression.

[0089] Based on the above embodiments, the application collects, analyzes and monitors the wave position level uplink interference through the newly added coordination control unit, realizes the sharing of interference data within and between satellites, avoids the repeated measurement of uplink interference by the satellite base station, and provides interference avoidance instructions and interference fluctuation monitoring for all satellites in the multi-satellite networking.

[0090] In addition, the uplink interference is analyzed through the frequency domain segmentation and time domain double threshold method, and different frequency domain analysis granularity and time domain double threshold values can be configured to adapt to different interference analysis strategies and different complexity engineering implementation schemes.

[0091] That is, considering that the satellite launch cost is relatively high, the on-satellite computing power and energy are very valuable and not easy to expand, the application adds a coordination control unit on the ground, moves the interference analysis originally performed on the satellite to the ground, and considering that the wave position level uplink interference is slow-varying, the interference data can be shared within and between satellites through the frequency coordination unit, thereby saving the computing power and energy consumption of the satellite base station. In addition, the interference information is configured to the satellite base station before the satellite enters, thereby avoiding the satellite base station from scheduling to the time-frequency domain resource position with interference.

[0092] It should be noted that the application also provides another uplink interference suppression method, Figure 4 is a second flowchart of the uplink interference suppression method provided by the application, as shown in Figure 4 The uplink interference suppression method comprises the following steps: Step 410, in the case of determining to enter the first state, performing uplink interference measurement to obtain a measurement result; the first state is used to indicate that the base station performs uplink interference measurement without uplink and downlink scheduling, and sends the measurement result to the coordination control unit.

[0093] Step 420, sending the measurement result to the coordination control unit; the measurement result is used to instruct the coordination control unit to perform uplink interference analysis, and send the uplink interference decision result obtained by the analysis to the base station.

[0094] Step 430, receiving the uplink interference decision result sent by the coordination control unit, and performing uplink interference suppression based on the uplink interference decision result.

[0095] After receiving the uplink interference decision result sent by the coordination control unit, the method further comprises the following steps: receive the interference sampling configuration information sent by the coordination control unit, perform periodic uplink interference measurement based on the interference sampling configuration information, and send new measurement results to the coordination control unit after each completion of uplink interference measurement.

[0096] In addition, after receiving the uplink interference decision result sent by the coordination control unit, the method further includes: sending the uplink interference decision result to a satellite on the same orbit or in the same coverage.

[0097] It should be noted that the execution subject of the uplink interference suppression method provided in the embodiments of the present application can be a network device. The network device in the present application can be a base station, which can include multiple cells serving terminals. According to different specific application occasions, the base station can also be referred to as an access point, or can be a device in an access network that communicates with wireless terminal devices through one or more sectors on an air interface, or other names.

[0098] In the present application, the base station can be a base station in a satellite (i.e. a spaceborne base station), which can be in communication connection with a coordination control unit arranged on the ground.

[0099] The spaceborne base station can include at least a first state and a second state. In the first state, the spaceborne base station does not perform any uplink and downlink scheduling, at which time the NTN terminals in the wave position do not send any signals to the spaceborne base station, and all signals received by the spaceborne base station are considered as interference. The second state is the general state of the base station.

[0100] Specifically, the present application adds a coordination control unit on the ground, which is used to collect full-bandwidth uplink interference data measured by the satellite in the first state, and detect interference data through the satellite in the second state. The frequency band and time period information of the interference is analyzed by the frequency domain block and time domain double threshold method, and the information is shared with all incoming satellites.

[0101] More specifically, before a certain satellite is about to enter the visible range of the coordination control unit (i.e. the communication window is about to open), that is, before the satellite enters the wave position area to be served (i.e. the designated service area of the satellite), the coordination control unit can be connected with the satellite in advance, and by sending instructions to the base station in the satellite, the base station in the satellite is instructed to switch its current state to the first state.

[0102] Further, after entering the first state (which can be specifically after receiving the instruction sent by the coordination unit and completing the state switching), the spaceborne base station measures the noise and interference (NI) values of all the resource blocks (RBs) of the full bandwidth of the service beam in real time through the physical layer, and the time domain granularity is 1 second, thereby completing the uplink interference measurement and sending the obtained NI information as the measurement result to the coordination unit through the feeder link.

[0103] The NI information includes the NI values of at least one resource block RB at at least one preset time point.

[0104] Specifically, the dimension of the NI value in the present application can be [beam identifier (ID)] [time (second)] [full bandwidth (RB)].

[0105] The full bandwidth in the present application can be composed of multiple RBs, for example, 106 RBs such as RB0-RB105.

[0106] The present application can also determine one or more frequency domain ranges from the full bandwidth range according to the demand in advance, and each preset frequency domain range is composed of multiple RBs, for example, each preset frequency domain range can be composed of 13 RBs.

[0107] Therefore, the coordination unit can receive the measurement result sent by the spaceborne base station.

[0108] Further, the coordination unit can perform time-frequency domain interference judgment according to the NI information in the measurement result and according to the set parameters and threshold values, and store the uplink interference judgment result corresponding to the time-frequency domain interference judgment. The uplink interference judgment result includes the frequency domain interference judgment result and the time domain interference judgment result.

[0109] Further, the coordination unit can send the obtained uplink interference judgment result to the base station (i.e., the spaceborne base station) in the satellite.

[0110] It should be noted that in the multi-satellite networking, the coordination unit in the present application can also send the obtained uplink interference judgment result to other satellites on the same orbit / adjacent orbit (same coverage) in the multi-satellite networking, so that the satellites on the same orbit / adjacent orbit (same coverage) in the multi-satellite networking do not have to perform interference measurement and analysis, but can share the inter-satellite interference data.

[0111] Further, the spaceborne base station can perform interference avoidance according to the time-frequency domain interference information in the uplink interference judgment result of each beam, thereby realizing uplink interference suppression.

[0112] According to the uplink interference suppression method of this application embodiment, a ground-based co-control unit controls the base station in the connected satellite to enter a first state before the satellite enters the servable frequency band region. This instructs the base station to perform uplink interference measurement without uplink / downlink scheduling and send the measurement results to the co-control unit. Furthermore, the co-control unit can receive the measurement results sent by the base station and determine an uplink interference decision based on the measurement results. Then, by sending the uplink interference decision result to the base station, the co-control unit instructs the base station to perform uplink interference suppression based on the uplink interference decision result. Therefore, by setting up a ground-based co-control unit, the base station in the satellite can be controlled to perform uplink interference measurement before entering the servable frequency band region, avoiding frequent uplink interference measurement and analysis by the satellite base station. Furthermore, by moving the uplink interference analysis originally performed on the satellite base station to the ground-based co-control unit, the resources used by the satellite base station for uplink interference analysis can be saved. Therefore, the on-board resource consumption of the satellite base station during uplink interference suppression can be effectively reduced.

[0113] In one embodiment, the interference decision threshold can be preset as follows: The unit is dBm (decibels milliwatts), and the granularity of frequency domain interference analysis is... Unit: MHz, frequency domain interference percentage threshold: .

[0114] Therefore, the co-control unit can use the NI information in the measurement results to compare the specified bandwidth. (i.e., exceeding the interference decision threshold within the preset frequency domain range) RB ratio and frequency domain interference threshold ratio The relationship determines the current bandwidth. Is there interference? This allows us to determine the bandwidth at each preset time point (e.g., per second). The result of frequency domain interference determination.

[0115] Furthermore, the co-control unit can determine the bandwidth at each preset time point based on the frequency domain interference decision results. To determine whether there is interference, we will judge whether each bandwidth (i.e. each preset frequency range) is available at different times (corresponding to different preset time points), thereby completing the time-domain interference decision and obtaining the time-domain interference decision result.

[0116] The coordination control unit in the present application can accurately determine the uplink interference decision result based on the result of the uplink interference measurement performed by the satellite-based base station in the first state, and then send the uplink interference decision result to the base station, so as to instruct the base station to perform uplink interference suppression according to the uplink interference decision result. Thus, by setting the coordination control unit on the ground, the base station in the satellite can be controlled to perform uplink interference measurement before entering the territory, avoiding frequent uplink interference measurement and analysis by the base station in the satellite, and moving the original uplink interference analysis performed by the base station in the satellite to the coordination control unit on the ground, which can save the resources used by the base station in the satellite for uplink interference analysis. Therefore, the consumption of on-board resources of the satellite-based base station when performing uplink interference suppression can be effectively saved.

[0117] In one embodiment, when determining the frequency domain interference decision result according to the NI information in the measurement result, for each preset frequency domain range at each preset time point in the NI information of the measurement result, the coordination control unit can calculate the proportion of the number of RBs with NI values exceeding the preset threshold value in the preset frequency domain range to the total number of RBs in the preset frequency domain range.

[0118] For example, for a specified bandwidth (i.e., a preset frequency domain range, such as the bandwidth formed by the 10th RB to the 22nd RB) in a second in the uplink interference measurement result, it can be determined whether each RB exceeds the interference decision threshold , and the proportion of the number of RBs exceeding the interference decision threshold to the total number of RBs in the specified bandwidth (e.g., the 10th RB to the 22nd RB, and the total number of RBs is 13) is calculated to obtain the proportion of target RBs to total RBs in the specified bandwidth.

[0119] Alternatively, the number of target RBs can be converted into frequency domain information, and the number of total RBs can be converted into frequency domain information, and the two frequency domain information can be calculated to obtain the proportion.

[0120] Thus, the proportion of target RBs to total RBs in each preset frequency domain range at each preset time point can be obtained. For example, if there are four preset time points and three preset frequency domain ranges in each time point, twelve proportions can be determined.

[0121] Further, the proportion corresponding to each preset frequency domain range can be compared with the frequency domain interference proportion threshold , if the proportion is greater than the frequency domain interference proportion threshold , it is determined that the preset frequency domain range has uplink interference, and the preset frequency domain range can be identified as 1; if the proportion is less than or equal to the frequency domain interference proportion threshold , it is determined that the preset frequency domain range has no uplink interference, and the preset frequency domain range can be identified as 0.

[0122] Figure 2 is a schematic diagram of the frequency domain interference judgment result in the uplink interference suppression method provided by the embodiment of the present application, Figure 2 In the diagram, the horizontal axis represents the time domain, and the vertical axis represents the frequency domain. Specifically, if four preset time points are included (i.e., the uplink interference measurement is performed by the spaceborne base station at four different time points), three preset frequency domain ranges are determined in each preset time point (the bandwidth of each preset frequency domain range is 5 megahertz (M)), and the judgment result is marked as 1 if there is uplink interference and marked as 0 if there is no uplink interference. The frequency domain interference judgment result is as shown in Figure 2 .

[0123] In the present application, the coordination control unit can accurately determine the frequency domain interference judgment result based on the NI information in the measurement result obtained by the spaceborne base station performing uplink interference measurement in the first state, and further determine the time domain interference judgment result based on the frequency domain interference judgment result, thereby obtaining the uplink interference judgment result. By sending the uplink interference judgment result to the base station, the base station can be instructed to perform uplink interference suppression according to the uplink interference judgment result. In this way, by setting the coordination control unit on the ground, the base station in the satellite can be controlled to perform uplink interference measurement before entering the territory, avoiding frequent uplink interference measurement and analysis by the base station in the satellite, and moving the original uplink interference analysis performed on the base station in the satellite to the coordination control unit on the ground, which can save the resources used by the base station in the satellite for uplink interference analysis. Therefore, the consumption of on-board resources of the spaceborne base station when performing uplink interference suppression can be effectively saved.

[0124] In one embodiment, in the time domain, since the satellite moves regularly, the satellite has a process of moving from far to near and then from near to far relative to the interference source, so it can be assumed that the interference is gradually changed in time rather than suddenly changed. Specifically, as shown in Figure 3 , Figure 3 is a schematic diagram of the time domain NI change in the uplink interference suppression method provided by the embodiment of the present application, Figure 3 In the diagram, the horizontal axis represents the time domain, and the vertical axis represents the NI value. The interference threshold, i.e., the interference judgment threshold, is . The present application can predefine the time domain interference proportion threshold as , . Among them, represents the lower limit of the threshold, represents the upper limit of the threshold.

[0125] Therefore, when determining the time-domain interference decision based on the frequency-domain interference decision, for the same preset frequency range at each preset time (e.g., the first 5MHz bandwidth at four different preset time points), the co-control unit can determine the ratio of the number of decisions indicating uplink interference to the total number of decisions (e.g., for four different preset time points, the total number of decisions is four; if one of the four preset time points indicates uplink interference, the ratio corresponding to that preset frequency range is 0.25). If there are three preset frequency ranges at each preset time point, the number of determined ratios is three.

[0126] Furthermore, for each ratio, the co-control unit can compare it with preset threshold information to obtain the time-domain interference decision result. The preset threshold information is the aforementioned time-domain interference ratio threshold, with the first threshold value and the second threshold value corresponding to the upper and lower limits of the time-domain interference ratio threshold.

[0127] Specifically, let the ratio (the proportion of unavailable time in the time domain to the total time) be... ,when When the threshold for full-time availability is reached, the current waveform (specifically, the frequency range corresponding to the ratio in the current waveform) is considered available for the entire time period. When the current waveform exceeds the interference threshold, the time period is considered unusable, while other time periods are usable. When the threshold of "unavailable for all time periods" is reached, the current wave position is considered unavailable for all time periods.

[0128] This application employs a dual-threshold method. By adjusting the values ​​of the two thresholds, it can adapt to different time-domain interference analysis strategies, enabling accurate determination of the time-domain interference decision based on the frequency-domain interference decision. This leads to the uplink interference decision, which, when sent to the base station, instructs the base station to perform uplink interference suppression. Therefore, through a ground-based co-control unit, the satellite base station can be controlled to perform uplink interference measurements before entering the satellite, avoiding frequent uplink interference measurements and analyses. Furthermore, by moving the uplink interference analysis originally performed on the satellite base station to the ground-based co-control unit, resources used by the satellite base station for uplink interference analysis can be saved. Thus, it effectively reduces onboard resource consumption by the satellite base station during uplink interference suppression.

[0129] In one embodiment, after obtaining the uplink interference decision result (at which time the satellite has not yet entered the country), the co-control unit can control the base station in the satellite to enter the second state, that is, configure the satellite base station to enter the second state, thereby instructing the satellite base station to resume uplink and downlink scheduling, and then send the uplink interference decision result to the satellite base station.

[0130] Thus, after receiving the uplink interference decision result, the satellite-borne base station can perform interference avoidance according to the time-frequency domain interference information of each wave position in the uplink interference decision result.

[0131] Before sending the uplink interference decision result to the base station, the coordination control unit in the present application controls the base station in the satellite to enter the second state to instruct the base station to resume the uplink and downlink scheduling, so that the satellite-borne base station can timely resume the uplink and downlink scheduling and ensure the smooth execution of the scheduling work.

[0132] In one embodiment, after sending the uplink interference decision result to the base station, the coordination control unit in the present application can also send interference sampling configuration information to the satellite-borne base station to instruct the satellite-borne base station to perform uplink interference measurement based on a preset time interval and send the new measurement result to the coordination control unit.

[0133] Specifically, the satellite-borne base station performs uplink interference measurement every other long period according to the interference sampling configuration information and sends the new measurement result to the coordination control unit through the feeder link.

[0134] Further, the coordination control unit can compare the new measurement result with the original measurement result and determine the uplink interference suppression scheme of the satellite-borne base station according to the comparison result.

[0135] After sending the uplink interference decision result to the base station, the coordination control unit in the present application can also send interference sampling configuration information to the satellite-borne base station to instruct the satellite-borne base station to perform uplink interference measurement based on a preset time interval and send the new measurement result to the coordination control unit, thereby avoiding the satellite-borne base station from frequently performing uplink interference measurement and effectively saving the on-satellite resource consumption of the satellite-borne base station when performing uplink interference suppression.

[0136] In one embodiment, after receiving the new measurement result sent by the satellite-borne base station each time, the coordination control unit can compare the new measurement result with the last measurement result to determine the fluctuation degree of the information between the two measurement results. The fluctuation degree can be represented by the difference degree of the data between the two measurement results (for example, the proportion of the changed data to the total data between the two measurement results), or represented by other information that can be determined from the two measurement results and can be used to represent the fluctuation degree of the data (for example, whether the amount of changed data is greater than a preset threshold).

[0137] If it is determined according to the fluctuation degree that there is no change or little change between the two measurement results, the last determined uplink interference decision result is sent to the satellite-borne base station or the satellite-borne base station is instructed to perform interference avoidance according to the existing uplink interference decision result.

[0138] If it is determined that the change between the two measurement results is large according to the fluctuation degree, the satellite-based base station is reconfigured to enter the first state, and then uplink interference judgment is performed according to the measurement result obtained by the satellite-based base station in the first state to perform uplink interference measurement, and the new uplink interference judgment result is sent to the satellite-based base station.

[0139] The application can determine the uplink interference suppression scheme of the satellite-based base station according to the fluctuation degree between the two measurement results after receiving each new measurement result, so that the satellite-based base station can avoid frequent uplink interference measurement, and the on-board resource consumption of the satellite-based base station when performing uplink interference suppression can be effectively saved.

[0140] Based on the above embodiments, the application adds a coordination control unit to collect, analyze and monitor the uplink interference of the wave position level, realizes sharing of interference data within and between satellites, avoids repeated measurement of uplink interference by the satellite-based base station, and provides interference avoidance instructions and interference fluctuation monitoring for all satellites in a multi-satellite network.

[0141] In addition, the uplink interference can be analyzed by the frequency domain segmentation and time domain double threshold method, and different frequency domain analysis granularity and time domain double threshold values can be configured to adapt to different interference analysis strategies and different complexity engineering implementation schemes.

[0142] That is, considering that the satellite launch cost is relatively high, the on-board computing power and energy are very valuable and not easy to expand, the application adds a coordination control unit on the ground to move the interference analysis originally performed on the satellite to the ground, and considering that the uplink interference of the wave position level is slow, the interference data can be shared within and between satellites through the frequency coordination unit, thereby saving the computing power and energy consumption of the satellite-based base station. In addition, the interference information is configured to the satellite-based base station before the satellite enters, thereby avoiding the satellite-based base station from being scheduled to the time-frequency domain resource position with interference.

[0143] Figure 5 is a networking schematic diagram of uplink interference analysis provided by the uplink interference suppression method of the application, as shown in Figure 5As shown, the application adds a first coordination control unit on the ground. For satellites not serving a wave position (for example, wave position 1, wave position 2, and wave position 3), the first coordination control unit sends the satellite a measurement instruction of uplink interference and interference information before it enters the territory (i.e. scenario one). The base station of the satellite is configured to enter a first state, so that the base station can perform uplink interference measurement in the first state (i.e. scenario two) and send real-time interference data as measurement results to the first coordination control unit. Then the coordination control unit can make an uplink interference decision according to the policy data and send the obtained uplink interference decision result to the base station of the satellite and configure it to enter a second state (i.e. scenario three). The base station of the satellite can perform interference avoidance according to the uplink interference decision result. In addition, the first coordination control unit also sends interference sampling configuration information to the base station of the satellite, so that the base station of the satellite can periodically perform uplink interference measurement and send periodic interference data as measurement results to the first coordination control unit. After receiving the new measurement results, the first coordination control unit compares them with the existing measurement data to determine the uplink interference suppression scheme of the base station.

[0144] The uplink interference suppression device provided by the application is described below. The uplink interference suppression device described below can be referred to in correspondence with the uplink interference suppression method described above.

[0145] Further, the application also provides an uplink interference suppression device.

[0146] The uplink interference suppression device comprises: A control module is configured to control a base station in a satellite to enter a first state before the satellite enters a wave position area to be served; wherein the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling, and send measurement results to a coordination control unit; A determination module is configured to receive the measurement results sent by the base station, and determine an uplink interference decision result based on the measurement results; A first sending module is configured to send the uplink interference decision result to the base station; the uplink interference decision result is used to instruct the base station to perform uplink interference suppression.

[0147] The uplink interference suppression device of the application, through the ground control unit, before the satellite enters the wave position area to be served, controls the base station in the connected satellite to enter the first state, so as to instruct the base station to perform uplink interference measurement and send the measurement result to the control unit; further, the control unit can receive the measurement result sent by the base station, and determine the uplink interference decision result based on the measurement result; and then the control unit sends the uplink interference decision result to the base station, so as to instruct the base station to perform uplink interference suppression according to the uplink interference decision result. Therefore, by setting the control unit on the ground, the base station in the satellite can be controlled to perform uplink interference measurement before entering the territory, avoiding frequent uplink interference measurement and analysis of the base station in the satellite, and moving the original uplink interference analysis of the base station in the satellite to the ground control unit for execution, so as to save the resources used by the base station in the satellite for uplink interference analysis. Therefore, the consumption of on-board resources of the on-board base station when performing uplink interference suppression can be effectively saved.

[0148] In one embodiment, the determining module is specifically configured to: determine a frequency domain interference decision result according to noise and interference (NI) information in the measurement result; determine a time domain interference decision result based on the frequency domain interference decision result.

[0149] In one embodiment, the determining module is further configured to: determine a proportion of target RBs to total RBs for each preset frequency domain range at each preset time point in the NI information of the measurement result; the target RBs are RBs whose NI values exceed a preset threshold value; and the preset frequency domain range includes at least one RB; determine a frequency domain interference decision result based on each proportion and a preset threshold value.

[0150] In one embodiment, the determining module is further configured to: determine, for each preset frequency domain range in the frequency domain interference decision result, a ratio of the number of decision results indicating that there is uplink interference to the total number of decision results; determine a time domain interference decision result based on each ratio and preset threshold information; the preset threshold information includes a first threshold value and a second threshold value; and the first threshold value and the second threshold value are different.

[0151] In one embodiment, the first sending module is further configured to: control the base station in the satellite to enter a second state; wherein the second state is used to instruct the base station to resume uplink and downlink scheduling.

[0152] In one embodiment, the first sending module is further configured to: The interference sampling configuration information is used to instruct the base station to perform uplink interference measurement based on a preset time interval and send a new measurement result to the coordination unit.

[0153] In one embodiment, the first sending module is further configured to: determine an uplink interference suppression scheme of the base station based on a fluctuation degree between the new measurement result and the measurement result; control the base station to perform uplink interference suppression based on the uplink interference suppression scheme.

[0154] In one embodiment, the uplink interference suppression device further comprises: a performing module configured to, in a case where it is determined that the first state is entered, perform uplink interference measurement to obtain a measurement result; the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling and send the measurement result to the coordination unit; a second sending module configured to send the measurement result to the coordination unit; the measurement result is used to instruct the coordination unit to perform uplink interference analysis and send an uplink interference decision result obtained by the analysis to the base station; a suppression module configured to receive the uplink interference decision result sent by the coordination unit and perform uplink interference suppression based on the uplink interference decision result.

[0155] In one embodiment, the suppression module is further configured to: receive interference sampling configuration information sent by the coordination unit, perform periodic uplink interference measurement based on the interference sampling configuration information, and send a new measurement result to the coordination unit after each completion of uplink interference measurement.

[0156] In one embodiment, the suppression module is further configured to: send the uplink interference decision result to a satellite on the same orbit or with the same coverage.

[0157] Figure 6 For a structural diagram of a network device according to an embodiment of the present application, refer to Figure 6 The present application also provides a network device, which can include a memory 610, a transceiver 620 and a processor 630. The memory 610 is used to store a computer program; the transceiver 620 is used to transceive data under the control of the processor 630; and the processor 630 is used to read the computer program in the memory 610 and perform the following operations: In a case of determining to enter the first state, performing uplink interference measurement to obtain a measurement result; the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling, and send the measurement result to the coordination unit; send the measurement result to the coordination unit; the measurement result is used to instruct the coordination unit to perform uplink interference analysis, and send an uplink interference decision result obtained by analysis to the base station; receive the uplink interference decision result sent by the coordination unit, and perform uplink interference suppression based on the uplink interference decision result.

[0158] In the above method, in a case of determining to enter the first state, Figure 6 The bus architecture can include any number of interconnected buses and bridges, which are used to link various circuits of the processor 630, which is represented by one or more processors, and the memory 610, which is represented by various circuits of the memory, together. The bus architecture can also link various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and thus, will not be further described herein. The bus interface provides an interface. The transceiver 620 can be a plurality of elements, i.e., including a transmitter and a receiver, which provides a unit for communicating with various other devices on a transmission medium. The processor 630 is responsible for managing the bus architecture and general processing, and the memory 610 can store data used by the processor 630 in performing operations.

[0159] Figure 7 An example of a schematic diagram of the physical structure of an electronic device is shown in Figure 7 As shown, the electronic device can include a processor 710, a communication interface 720, a memory 730, and a communication bus 740, wherein the processor 710, the communication interface 720, and the memory 730 complete mutual communication through the communication bus 740. The processor 710 can invoke a logical instruction in the memory 730 to execute the following method: before a satellite enters a wave position area to be served, controlling a base station in the satellite to enter a first state; wherein the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling, and send a measurement result to a coordination unit; receive the measurement result sent by the base station, and determine an uplink interference decision result based on the measurement result; send the uplink interference decision result to the base station; the uplink interference decision result is used to instruct the base station to perform uplink interference suppression.

[0160] Alternatively, the following method is executed: In a case of determining to enter the first state, performing uplink interference measurement to obtain a measurement result; the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling, and send the measurement result to the coordination unit; send the measurement result to the coordination unit; the measurement result is used to instruct the coordination unit to perform uplink interference analysis, and send an uplink interference decision result obtained by analysis to the base station; receive the uplink interference decision result sent by the coordination unit, and perform uplink interference suppression based on the uplink interference decision result.

[0161] In addition, the logical instructions in the memory 730 described above can be implemented in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application or the parts that essentially contribute to the related art or the parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0162] In another aspect, the embodiments of the present application also provide a non-transitory computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the method provided by the above-mentioned embodiments, for example, including: before a satellite enters a wave position area to be served, controlling a base station in the satellite to enter a first state; wherein the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling, and send a measurement result to a coordination unit; receive the measurement result sent by the base station, and determine an uplink interference decision result based on the measurement result; send the uplink interference decision result to the base station; the uplink interference decision result is used to instruct the base station to perform uplink interference suppression.

[0163] Or, including: In a case of determining to enter the first state, performing uplink interference measurement to obtain a measurement result; the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling, and send the measurement result to the coordination unit; send the measurement result to the coordination unit; the measurement result is used to instruct the coordination unit to perform uplink interference analysis, and send the uplink interference decision result obtained by analysis to the base station; receive the uplink interference decision result sent by the coordination unit, and perform uplink interference suppression based on the uplink interference decision result.

[0164] In another aspect, the embodiments of the present application also provide a computer program product, which has a computer program stored thereon, and the computer program is executed by a processor to implement the method provided by the above-mentioned embodiments, for example, comprising: controlling a base station in a satellite to enter a first state before the satellite enters a wave position area to be served; wherein the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling, and send a measurement result to a coordination unit; receiving the measurement result sent by the base station, and determining an uplink interference decision result based on the measurement result; sending the uplink interference decision result to the base station; the uplink interference decision result is used to instruct the base station to perform uplink interference suppression.

[0165] Or, comprising: in a case of determining to enter the first state, performing uplink interference measurement to obtain a measurement result; the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling, and send the measurement result to a coordination unit; sending the measurement result to the coordination unit; the measurement result is used to instruct the coordination unit to perform uplink interference analysis, and send the uplink interference decision result obtained by analysis to the base station; receiving the uplink interference decision result sent by the coordination unit, and performing uplink interference suppression based on the uplink interference decision result.

[0166] The apparatus embodiments described above are merely illustrative, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiments according to actual needs. Those skilled in the art can understand and implement it without creative labor.

[0167] Those skilled in the art can clearly understand the implementation of the various embodiments by means of software and necessary general hardware platforms through the description of the above embodiments, and of course, the embodiments can also be implemented by hardware. Based on such understanding, the above technical solutions can be embodied in the form of a software product, and the computer software product can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0168] Finally, it should be noted that the above embodiments are only used to illustrate the present application, and are not limiting to the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present application do not deviate from the spirit and scope of the present application.

Claims

1. A method for suppressing uplink interference, characterized in that, The method is applied to a co-control unit, which is located on the ground and connected to a satellite for communication; the uplink interference suppression method includes: Before the satellite enters the wavelet region to be served, the base station in the satellite is controlled to enter a first state; wherein, the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling, and send the measurement result to the co-control unit. Receive the measurement results sent by the base station, and determine the uplink interference decision result based on the measurement results; The uplink interference decision result is sent to the base station; the uplink interference decision result is used to instruct the base station to perform uplink interference suppression.

2. The uplink interference suppression method according to claim 1, characterized in that, The determination of the uplink interference decision based on the measurement results includes: Based on the noise and interference NI information in the measurement results, the frequency domain interference decision result is determined; Based on the frequency domain interference decision result, the time domain interference decision result is determined.

3. The uplink interference suppression method according to claim 2, characterized in that, The NI information includes the NI value of at least one resource block (RB) at at least one preset time point; determining the frequency domain interference decision result based on the noise and interference NI information in the measurement results includes: For each preset frequency range at each preset time point in the NI information of the measurement results, the proportion of the target RB and the total RB is determined respectively; the target RB is the RB whose NI value exceeds a preset threshold value; the preset frequency range includes at least one RB; Based on the respective proportions and preset threshold values, the frequency domain interference decision result is determined.

4. The uplink interference suppression method according to claim 2, characterized in that, The frequency domain interference decision result includes at least one decision result at a preset time point and at least one preset frequency domain range. The judgment result is either that uplink interference exists or that uplink interference does not exist; The step of determining the time-domain interference decision result based on the frequency-domain interference decision result includes: For each preset frequency range in the frequency domain interference decision results, the ratio of the number of decision results with uplink interference to the total number of decision results is determined. Based on the ratios and preset threshold information, the time-domain interference decision result is determined; the preset threshold information includes a first threshold value and a second threshold value; the first threshold value and the second threshold value are different.

5. The uplink interference suppression method according to any one of claims 1 to 4, characterized in that, Before sending the uplink interference decision result to the base station, the method further includes: The base station in the satellite is controlled to enter a second state; wherein the second state is used to instruct the base station to resume uplink and downlink scheduling.

6. The uplink interference suppression method according to claim 1, characterized in that, After sending the uplink interference decision result to the base station, the method further includes: The interference sampling configuration information is sent to the base station; the interference sampling configuration information is used to instruct the base station to perform uplink interference measurement based on a preset time interval and send the new measurement results to the co-control unit.

7. The uplink interference suppression method according to claim 6, characterized in that, After sending the interference sampling configuration information to the base station, the method further includes: Based on the degree of fluctuation between the new measurement results and the original measurement results, the uplink interference suppression scheme of the base station is determined; Based on the aforementioned uplink interference suppression scheme, the base station is controlled to perform uplink interference suppression.

8. A method for suppressing uplink interference, characterized in that, A base station used in a satellite, wherein the satellite is communicatively connected to a ground-based control unit; The uplink interference suppression method includes: Upon determining that the first state has been entered, uplink interference measurement is performed to obtain the measurement result; the first state is used to instruct the base station to perform uplink interference measurement without uplink / downlink scheduling and send the measurement result to the co-control unit. The measurement results are sent to the co-control unit; the measurement results are used to instruct the co-control unit to perform uplink interference analysis, and the uplink interference decision result obtained from the analysis is sent to the base station; Receive the uplink interference decision result sent by the co-control unit, and perform uplink interference suppression based on the uplink interference decision result.

9. The uplink interference suppression method according to claim 8, characterized in that, After receiving the uplink interference decision result sent by the co-control unit, the method further includes: The system receives interference sampling configuration information sent by the co-control unit, performs periodic uplink interference measurements based on the interference sampling configuration information, and sends the new measurement results to the co-control unit after each uplink interference measurement is completed.

10. The uplink interference suppression method according to claim 8, characterized in that, After receiving the uplink interference decision result sent by the co-control unit, the method further includes: The uplink interference decision result is sent to a satellite in the same orbit or with the same coverage.

11. An uplink interference suppression device, characterized in that, include: The control module is used to control the base station in the satellite to enter a first state before the satellite enters the wavelet region to be served; wherein, the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling, and send the measurement results to the co-control unit; The determination module is used to receive the measurement results sent by the base station and determine the uplink interference decision result based on the measurement results; The first transmitting module is used to transmit the uplink interference decision result to the base station; the uplink interference decision result is used to instruct the base station to perform uplink interference suppression.

12. An uplink interference suppression device, characterized in that, include: The execution module is used to perform uplink interference measurement and obtain measurement results when it is determined that the first state has been entered. The first state is used to instruct the base station to perform uplink interference measurement without uplink / downlink scheduling and send the measurement results to the co-control unit. The second transmitting module is used to transmit the measurement results to the co-control unit; the measurement results are used to instruct the co-control unit to perform uplink interference analysis, and to transmit the uplink interference decision result obtained from the analysis to the base station; The suppression module is used to receive the uplink interference decision result sent by the co-control unit and perform uplink interference suppression based on the uplink interference decision result.

13. A network device, characterized in that, Includes memory, transceiver, and processor; A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: Upon determining that the system has entered the first state, uplink interference measurement is performed to obtain the measurement results. The first state is used to instruct the base station to perform uplink interference measurement without uplink / downlink scheduling and send the measurement results to the co-control unit. The measurement results are sent to the co-control unit; the measurement results are used to instruct the co-control unit to perform uplink interference analysis, and the uplink interference decision result obtained from the analysis is sent to the base station; Receive the uplink interference decision result sent by the co-control unit, and perform uplink interference suppression based on the uplink interference decision result.

14. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the uplink interference suppression method as described in any one of claims 1 to 10.

15. A storage medium, said storage medium being a non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the uplink interference suppression method as described in any one of claims 1 to 10.

16. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the uplink interference suppression method according to any one of claims 1 to 10.

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