CN121124906A

CN121124906A - Uplink interference suppression method, device, equipment, storage medium and program product

Info

Publication number: CN121124906A
Application number: CN202511219171.8A
Authority: CN
Inventors: 张泽祥
Original assignee: China Mobile Communications Group Co Ltd; Research Institute of China Mobile Communication Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; Research Institute of China Mobile Communication Co Ltd
Priority date: 2025-08-28
Filing date: 2025-08-28
Publication date: 2025-12-12

Abstract

This application relates to the field of wireless technology, providing an uplink interference suppression method, apparatus, device, storage medium, and program product. The uplink interference suppression method is applied to a co-control unit, which is located on the ground and communicates with a satellite. The uplink interference suppression method includes: controlling a base station in the satellite to enter a first state before the satellite enters the servicing frequency range; wherein, 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; receiving the measurement results sent by the base station, determining an uplink interference decision result based on the measurement results; and 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. This application, through a ground-based co-control unit, avoids the frequent uplink interference measurement and analysis by the base station in the satellite, thereby effectively saving on-board resource consumption when the satellite-borne base station performs uplink interference suppression.

Description

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

Technical Field

The present application relates to the field of wireless technologies, and in particular, to a method, an apparatus, a device, a storage medium, and a program product for uplink interference suppression.

Background

In the satellite-ground fusion combined scene, the satellite network and the ground cellular network share spectrum resources and cooperatively provide wireless communication services for users. Satellite-to-ground spectrum sharing may improve the utilization of radio spectrum resources, but also faces the challenge of Non-terrestrial networks (Non-TERRESTRIAL NETWORK, NTN) interfering with terrestrial networks (TERRESTRIAL NETWORK, TN).

For a signal receiving and transmitting network consisting of a TN/NTN base station and a TN/NTN terminal, any signal at the transmitting end can have interference to a non-target receiving end. Therefore, it is necessary to analyze uplink interference of the TN terminal, the TN base station, and other interference sources to the NTN base station. The uplink Interference analysis is generally that a satellite-borne base station measures Noise and Interference (Noise AND INTERFERENCE, NI)/Signal-to-Interference-plus-Noise Ratio (SINR) values of received signals in real time through a physical layer, evaluates the measured values through a scheduling layer, and avoids time-frequency domain resources when the Interference exceeds a demodulation threshold, thereby reducing the uplink Interference.

The conventional uplink interference analysis scheme can alleviate the influence of uplink interference to a certain extent, but relies on frequent interference detection and analysis processes, so that the on-board base station consumes a large amount of on-board resources when performing uplink interference suppression.

Disclosure of Invention

The present application is directed to solving at least one of the technical problems existing in the related art. Therefore, the application provides an uplink interference suppression method, device, equipment, storage medium and program product, which are used for solving the problem that a large amount of satellite resources are consumed due to frequent interference detection and analysis when a satellite-borne base station performs uplink interference suppression, so that the satellite resource consumption of the satellite-borne base station during uplink interference suppression is saved.

The uplink interference suppression method according to the embodiment of the first aspect of the application is applied to a cooperative control unit, wherein the cooperative control unit is arranged on the ground and is in communication connection with a satellite, and 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 of not carrying out uplink and downlink scheduling, and sending a measurement result to the cooperative control unit;

receiving a measurement result sent by the base station, and determining an uplink interference judgment result based on the measurement result;

and the uplink interference judgment result is used for indicating the base station to carry out uplink interference suppression.

According to an embodiment of the present application, the determining an uplink interference decision result based on the measurement result includes:

Determining a frequency domain interference judgment result according to the noise and the interference NI information in the measurement result;

and determining a time domain interference judgment result based on the frequency domain interference judgment result.

According to one embodiment of the present application, the NI information includes at least one NI value of at least one resource block RB at least one preset time point, and the determining the frequency domain interference decision result according to the noise and interference NI information in the measurement result includes:

The method comprises the steps of respectively determining the duty ratio of a target RB and a total RB according to each preset frequency domain range on each preset time point in the NI information of the measurement result, wherein the target RB is an RB with the NI value exceeding a preset threshold value;

And determining a frequency domain interference judgment result based on each duty ratio and a preset threshold value.

According to one embodiment of the application, the frequency domain interference judgment result comprises at least one judgment result of at least one preset frequency domain range at least one preset time point, wherein the judgment result is that uplink interference exists or no uplink interference exists;

the determining a time domain interference decision result based on the frequency domain interference decision result includes:

For each preset frequency domain range in the frequency domain interference judgment results, determining the ratio of the number of the judgment results with uplink interference to the total number of the judgment results respectively;

and determining a time domain interference judgment result based on the ratio and preset threshold information, wherein 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.

According to an embodiment of the present application, before the sending the uplink interference decision result to the base station, the method further includes:

and controlling the base station in the satellite to enter a second state, wherein the second state is used for indicating the base station to resume uplink and downlink scheduling.

According to an embodiment of the present application, after the sending the uplink interference decision result to the base station, the method further includes:

And the interference sampling configuration information is used for indicating the base station to perform uplink interference measurement based on a preset time interval and sending a new measurement result to the cooperative control unit.

According to one embodiment of the present application, after the transmitting of the interference sampling configuration information to the base station, the method further includes:

determining an uplink interference suppression scheme of the base station based on the new measurement result and the fluctuation degree between the measurement results;

and controlling the base station to perform uplink interference suppression based on the uplink interference suppression scheme.

According to the embodiment of the second aspect of the application, the uplink interference suppression method is applied to a base station in a satellite, wherein the satellite is in communication connection with a cooperative control unit arranged on the ground, and the uplink interference suppression method comprises the following steps:

the method comprises the steps of executing uplink interference measurement under the condition of determining to enter a first state, and obtaining a measurement result, wherein the first state is used for indicating the base station to execute uplink interference measurement under the condition of not carrying out uplink and downlink scheduling, and sending the measurement result to the cooperative control unit;

The measurement result is used for indicating the cooperative control unit to perform uplink interference analysis and sending an uplink interference judgment result obtained by the analysis to the base station;

And receiving an uplink interference judgment result sent by the cooperative control unit, and performing uplink interference suppression based on the uplink interference judgment result.

According to an embodiment of the present application, after the receiving the uplink interference decision result sent by the cooperative control unit, the method further includes:

And receiving interference sampling configuration information sent by the cooperative control unit, executing periodic uplink interference measurement based on the interference sampling configuration information, and sending a new measurement result to the cooperative control unit after the uplink interference measurement is completed each time.

and sending the uplink interference judgment result to the same orbit or same coverage satellite.

According to an embodiment of the third aspect of the present application, an uplink interference suppression device includes:

The control module is used for controlling a base station in the satellite to enter a first state before the satellite enters a wave position area to be served, wherein the first state is used for indicating the base station to execute uplink interference measurement under the condition of not carrying out uplink and downlink scheduling and sending a measurement result to the cooperative control unit;

the determining module is used for receiving the measurement result sent by the base station and determining an uplink interference judgment result based on the measurement result;

The first sending module is used for sending the uplink interference judgment result to the base station, and the uplink interference judgment result is used for indicating the base station to carry out uplink interference suppression.

An uplink interference suppression device according to an embodiment of the fourth aspect of the present application includes:

the system comprises an execution module, a cooperative control unit, a first state and a second state, wherein the execution module is used for executing uplink interference measurement to obtain a measurement result under the condition of determining to enter the first state;

The second sending module is used for sending the measurement result to the cooperative control unit, wherein the measurement result is used for indicating the cooperative control unit to perform uplink interference analysis and sending an uplink interference judgment result obtained by analysis to the base station;

and the suppression module is used for receiving the uplink interference judgment result sent by the cooperative control unit and performing uplink interference suppression based on the uplink interference judgment result.

A network device according to an embodiment of the fifth aspect of the present application includes a memory, a transceiver, and a processor;

The system comprises a memory for storing a computer program, a transceiver for receiving and transmitting data under the control of the processor, and a processor for reading the computer program in the memory and performing the following operations:

the method comprises the steps of executing uplink interference measurement under the condition of determining to enter a first state, and obtaining a measurement result, wherein the first state is used for indicating a base station to execute the uplink interference measurement under the condition of not carrying out uplink and downlink scheduling, and sending the measurement result to a cooperative control unit;

An electronic device according to an embodiment of the sixth aspect of the present application includes a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements any one of the uplink interference suppression methods described above when executing the computer program.

A storage medium according to an embodiment of the seventh aspect of the present application is a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor implements an uplink interference suppression method as described in any one of the above.

A computer program product according to an eighth aspect of the present application comprises a computer program which, when executed by a processor, implements a method of uplink interference suppression as described in any of the above.

The above technical solutions in the embodiments of the present application at least have the following technical effects:

The method comprises the steps of controlling a base station in a satellite to enter a first state by a cooperative control unit arranged on the ground before the satellite enters a wave position area to be served, indicating the base station to execute uplink interference measurement and send a measurement result to the cooperative control unit under the condition that uplink and downlink scheduling is not carried out, further, the cooperative control unit can receive the measurement result sent by the base station and determine an uplink interference judgment result based on the measurement result, and further, the cooperative control unit can indicate the base station to carry out uplink interference suppression according to the uplink interference judgment result by sending the uplink interference judgment result to the base station. Therefore, by arranging the cooperative control unit on the ground, the base station in the satellite can be controlled to perform uplink interference measurement before entering, the base station in the satellite is prevented from frequently performing uplink interference measurement and analysis, and the uplink interference analysis originally performed on the base station of the satellite is moved to the ground for execution by the cooperative control unit, so that resources used by the base station in the satellite for uplink interference analysis can be saved. Therefore, the on-board resource consumption of the on-board base station when the uplink interference is suppressed can be effectively saved.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

In order to more clearly illustrate the application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic flow chart of an uplink interference suppression method according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a frequency domain interference decision result in an uplink interference suppression method according to an embodiment of the present application.

Fig. 3 is a schematic diagram of time domain NI variation in an uplink interference suppression method according to an embodiment of the present application.

Fig. 4 is a second flowchart of an uplink interference suppression method according to an embodiment of the present application.

Fig. 5 is a schematic diagram of uplink interference analysis networking in the uplink interference suppression method provided by the embodiment of the present application.

Fig. 6 is a schematic structural diagram of a network device according to the present application.

Fig. 7 is a schematic structural diagram of an electronic device provided by the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that the conventional uplink interference analysis method has the following two problems:

1. In practical application, the coverage area of the beam is very large, and the uplink interference is the lumped interference of all UEs in the wave bit, and the interference cannot be changed due to the change of several UEs, so the uplink interference is a slowly-changing parameter of the wave bit level.

Therefore, the satellite-borne base station does not need to measure and analyze the uplink interference all the time (the satellite resources are precious and are not easily expanded). In addition, in the case of multi-star networking, satellites in the same orbit/similar orbits (same coverage) do not need to perform interference measurement and analysis, but can perform inter-satellite interference data sharing.

2. The interference analysis method is relatively fixed, the complexity of engineering realization is not considered, and different frequency spectrum multiplexing strategies cannot be adapted.

Based on the above, the application provides an uplink interference suppression method, an uplink interference suppression device, a storage medium and a program product.

It should be noted that, all actions for acquiring signals, information or data in the present application are performed under the condition of conforming to the corresponding data protection rule policy of the place and obtaining the authorization given by the owner of the corresponding device.

Fig. 1 is one of flow diagrams of an uplink interference suppression method according to an embodiment of the present application, as shown in fig. 1, where the uplink interference suppression method includes:

And 110, controlling a base station in the satellite to enter a first state before the satellite enters a wave position area to be served, wherein the first state is used for indicating the base station to execute uplink interference measurement without uplink and downlink scheduling, and sending a measurement result to a cooperative control unit.

And 120, receiving the measurement result sent by the base station, and determining an uplink interference judgment result based on the measurement result.

And 130, transmitting an uplink interference judgment result to the base station, wherein the uplink interference judgment result is used for indicating the base station to perform uplink interference suppression.

It should be noted that, the uplink interference suppression method provided by the embodiment of the present application may be applied to a cooperative control unit, where the cooperative control unit is disposed on the ground and may be in communication connection with one or more satellites. The slave unit may also be defined as a first slave unit in the present application.

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

Specifically, a cooperative control unit is additionally arranged on the ground, and is used for collecting full-bandwidth uplink interference data measured by satellites in a first state and detecting the interference data through satellite sampling in a second state. And analyzing the interference frequency band and time period information by a frequency domain blocking and time period double-threshold method, and sharing the information to all satellites entering the environment.

More specifically, in the present application, before a certain satellite enters the visible range of the cooperative control unit (i.e. the communication window is about to open), that is, before the satellite enters the to-be-serviced wave-level region (i.e. the designated service region of the satellite) (or before the satellite enters the environment), the cooperative control unit may be in communication connection with the satellite in advance, and instruct the base station in the satellite to switch the current state of the base station to the first state by sending an instruction to the base station in the satellite.

Further, after entering the first state (specifically, after receiving an instruction sent by the cooperative control unit and completing state switching), the satellite-borne base station measures all service-level full-bandwidth Resource Block (RB) level Noise and interference (Noise AND INTERFERENCE, NI) values in real time through a physical layer in the first state, and the time domain granularity is 1 second, thereby completing uplink interference measurement and sending the obtained NI information to the cooperative control unit through a feeder link as a measurement result.

The NI information includes an NI value of at least one resource block RB at least one preset time point.

Specifically, the dimension of the NI value in the present application may be [ bin identification number (ID) ] [ time (seconds) ] [ full bandwidth (RB) ].

The full bandwidth in the present application may be composed of a plurality of RBs, for example, 106 RBs such as RB0-RB 105.

The application can also determine one or more frequency domain ranges from the full bandwidth range in advance according to the requirement, wherein each preset frequency domain range consists of a plurality of RBs, for example, each preset frequency domain range can consist of 13 RBs.

Therefore, the cooperative control unit can receive the measurement result sent by the satellite-borne base station.

Further, the cooperative control unit may perform time-frequency domain interference decision according to the NI information in the measurement result and the set parameter and threshold value, and store an uplink interference decision result corresponding to the time-frequency domain interference decision. The uplink interference judgment result comprises a frequency domain interference judgment result and a time domain interference judgment result.

Further, the cooperative control unit may send the obtained uplink interference decision result to a base station in the satellite (i.e. a satellite-borne base station).

It should be noted that, in the multi-satellite networking, the cooperative control unit in the present application may also send the obtained uplink interference decision result to other satellites in the multi-satellite networking in the same orbit/similar orbit (same coverage), so that the satellites in the multi-satellite networking in the same orbit/similar orbit (same coverage) do not need to perform interference measurement and analysis, but may perform inter-satellite interference data sharing.

Furthermore, the satellite-borne base station can avoid interference according to the time-frequency domain interference information in the uplink interference judgment result of each wave bit, thereby realizing uplink interference suppression.

According to the uplink interference suppression method, the cooperative control unit is arranged on the ground, before the satellite enters the wave position area to be served, the base station in the satellite is controlled to enter the first state, the base station is instructed to execute uplink interference measurement and send the measurement result to the cooperative control unit under the condition that uplink and downlink scheduling is not carried out, further, the cooperative control unit can receive the measurement result sent by the base station and determine an uplink interference judgment result based on the measurement result, and the cooperative control unit can instruct the base station to carry out uplink interference suppression according to the uplink interference judgment result by sending the uplink interference judgment result to the base station. Therefore, by arranging the cooperative control unit on the ground, the base station in the satellite can be controlled to perform uplink interference measurement before entering, the base station in the satellite is prevented from frequently performing uplink interference measurement and analysis, and the uplink interference analysis originally performed on the base station of the satellite is moved to the ground for execution by the cooperative control unit, so that resources used by the base station in the satellite for uplink interference analysis can be saved. Therefore, the on-board resource consumption of the on-board base station when the uplink interference is suppressed can be effectively saved.

In one embodiment, determining the uplink interference decision result based on the measurement result includes:

determining a frequency domain interference judgment result according to noise and interference NI information in the measurement result;

Specifically, the present application may preset an interference decision threshold asThe unit is dBm (decibel milliwatt), and the frequency domain interference analysis granularity isThe frequency domain interference duty ratio threshold is set as the unit MHz。

Therefore, the cooperative control unit can designate the bandwidth by comparing according to the NI information in the measurement resultExceeding the interference decision threshold (i.e. within a predetermined frequency domain range)RB duty cycle of (c) and frequency domain interference threshold duty cycleIs used for judging the current bandwidthWhether there is interference. Thus, each bandwidth at each preset time point (such as every second) can be determinedAnd judging whether the frequency domain interference of the interference exists or not.

Further, the cooperative control unit may determine each bandwidth at each preset time point according to the frequency domain interference determination resultAnd judging whether each bandwidth (namely each preset frequency domain range) is available in different time (corresponding to different preset time points) or not according to the interference result, thereby completing time domain interference judgment and obtaining a time domain interference judgment result.

The cooperative control unit can accurately determine the uplink interference judgment result based on the result of the uplink interference measurement performed by the satellite-borne base station in the first state, and then the uplink interference judgment result is sent to the base station, so that the base station can be instructed to perform uplink interference suppression according to the uplink interference judgment result. Therefore, the cooperative control unit arranged on the ground can control the base station in the satellite to perform uplink interference measurement before entering, so that the base station in the satellite is prevented from frequently performing uplink interference measurement and analysis, and the uplink interference analysis originally performed on the base station of the satellite is moved to the cooperative control unit on the ground for execution, so that resources used by the base station in the satellite for uplink interference analysis can be saved. Therefore, the on-board resource consumption of the on-board base station when the uplink interference is suppressed can be effectively saved.

In one embodiment, determining the frequency domain interference decision result according to the noise and interference NI information in the measurement result includes:

determining the ratio of target RBs to total RBs respectively according to each preset frequency domain range on each preset time point in the NI information of the measurement result, wherein the target RBs are RBs with NI values exceeding a preset threshold value;

Specifically, 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 cooperative control unit may compare the number of RBs in the preset frequency domain range, where the NI value exceeds the preset threshold value, with the ratio of the total number of RBs in the preset frequency domain range.

For example, for a specified bandwidth (i.e. a preset frequency domain range, such as the bandwidths formed by 10 th to 22 th RBs) in a certain second in the uplink interference measurement result, it can be determined whether each RB exceeds the interference decision thresholdAnd will exceed the interference decision thresholdAnd (2) performing a ratio operation on the number of RBs of the designated bandwidth and the total number of RBs (for example, the 10 th to 22 th RBs, the total number of RBs is 13) to obtain the duty ratio of the target RBs and the total RBs in the designated bandwidth.

Or the number of target RBs can be converted into frequency domain information, the number of total RBs can be converted into frequency domain information, and the ratio of the two frequency domain information can be calculated to obtain the duty ratio.

Thus, the ratio 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 4 preset time points, and there are three preset frequency domain ranges in each time point, the value of each duty ratio of 12 can be determined.

Further, the duty ratio corresponding to each preset frequency domain range can be respectively compared with the frequency domain interference duty ratio thresholdComparing, if the duty ratio is greater than the frequency domain interference duty ratio thresholdDetermining that there is uplink interference in the preset frequency domain range, and marking the preset frequency domain range as 1, if the duty ratio is smaller than or equal to the frequency domain interference duty ratio thresholdAnd judging that the preset frequency domain range does not have uplink interference, and marking the preset frequency domain range as 0.

Fig. 2 is a schematic diagram of a frequency domain interference decision result in the uplink interference suppression method provided by the embodiment of the present application, in which a horizontal axis in fig. 2 is a time domain, and a vertical axis is a frequency domain, specifically, if 4 preset time points are included (i.e., a satellite-borne base station performs uplink interference measurement at 4 different time points), 3 preset frequency domain ranges (bandwidth corresponding to each preset frequency domain range is 5 mega (M)) are respectively determined in each preset time point, and the decision result is that uplink interference exists, then the uplink interference is identified as 1, and if no uplink interference exists, then the uplink interference is identified as 0. The frequency domain interference decision result is shown in fig. 2.

The cooperative control unit can accurately determine the frequency domain interference judgment result based on the NI information in the measurement result obtained by the uplink interference measurement of the satellite-borne base station in the first state, and further can further determine the time domain interference judgment result based on the frequency domain interference judgment result, so that the uplink interference judgment result is obtained, and the base station can be instructed to perform uplink interference suppression according to the uplink interference judgment result by sending the uplink interference judgment result to the base station. Therefore, the cooperative control unit arranged on the ground can control the base station in the satellite to perform uplink interference measurement before entering, so that the base station in the satellite is prevented from frequently performing uplink interference measurement and analysis, and the uplink interference analysis originally performed on the base station of the satellite is moved to the cooperative control unit on the ground for execution, so that resources used by the base station in the satellite for uplink interference analysis can be saved. Therefore, the on-board resource consumption of the on-board base station when the uplink interference is suppressed can be effectively saved.

In one embodiment, determining the time domain interference decision result based on the frequency domain interference decision result comprises:

And determining a time domain interference judgment result based on the ratios and preset threshold information, wherein 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.

It should be noted that, in the time domain, since the satellite is regularly moving, and there is a process of moving from far to near to far relative to the interference source, it may be assumed that the interference is gradual in time rather than abrupt, as shown in fig. 3, fig. 3 is a schematic diagram of time domain NI variation in the uplink interference suppression method provided by the embodiment of the present application, in fig. 3, the horizontal axis represents the time domain, the vertical axis represents the NI value, and the interference threshold, that is, the interference decision threshold, is. The application can preset the time domain interference duty ratio threshold as,. Wherein, the A lower threshold limit is indicated and,Representing an upper threshold limit.

Therefore, when determining the time domain interference decision result based on the frequency domain interference decision result, for the same preset frequency domain range (for example, the first 5M bandwidth at 4 different preset time points) at each preset time, the cooperative control unit may determine that a ratio of the number of decision results with 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 at 1 preset time point in the 4 preset time points is that uplink interference exists, 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, the number of the determined ratios is 3.

Furthermore, for each ratio, the cooperative control unit can compare the ratio with preset threshold information to obtain a time domain interference judgment result. The preset threshold information is the time domain interference ratio threshold, and the first threshold value and the second threshold value correspond to the upper threshold limit and the lower threshold limit in the time domain interference ratio threshold.

Specifically, the ratio (i.e. the ratio of the time domain unavailable time to the total time) is set toWhen (when)(Full period availability threshold) when the current wave position (in particular the ratio in the current wave position corresponds to the frequency domain range) is considered to be available for the full periodWhen the current wave bit exceeds the interference threshold, the time period is not available, and other time periods are available. When (when)(Full time period unavailable threshold), the current wave bit full time period is considered to be unavailable.

The application uses the double-threshold method, can adapt to different time domain interference analysis strategies by adjusting the values of the double thresholds, 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, and the base station can be instructed to carry out uplink interference suppression according to the uplink interference judgment result by sending the uplink interference judgment result to the base station. Therefore, the cooperative control unit arranged on the ground can control the base station in the satellite to perform uplink interference measurement before entering, so that the base station in the satellite is prevented from frequently performing uplink interference measurement and analysis, and the uplink interference analysis originally performed on the base station of the satellite is moved to the cooperative control unit on the ground for execution, so that resources used by the base station in the satellite for uplink interference analysis can be saved. Therefore, the on-board resource consumption of the on-board base station when the uplink interference is suppressed can be effectively saved.

In one embodiment, before sending the uplink interference decision result to the base station, the method further includes:

Specifically, after the uplink interference judgment result is obtained (the satellite is still not in the border at this time), the cooperative control unit can control the base station in the satellite to enter the second state, namely, the satellite-borne base station is configured to enter the second state, so that the satellite-borne base station is indicated to restore uplink and downlink scheduling, and then the uplink interference judgment result is sent to the satellite-borne base station.

Therefore, after receiving the uplink interference judgment result, the satellite-borne base station can avoid interference according to the time-frequency domain interference information of each wave bit in the uplink interference judgment result.

Before the uplink interference judgment result is sent to the base station, the cooperative control unit controls the base station in the satellite to enter a second state to instruct the base station to resume uplink and downlink scheduling, so that the satellite-borne base station can resume uplink and downlink scheduling in time, and smooth execution of scheduling work is ensured.

In one embodiment, after sending the uplink interference decision result to the base station, the method further includes:

The interference sampling configuration information is used for indicating the base station to carry out uplink interference measurement based on a preset time interval and sending a new measurement result to the cooperative control unit.

It should be noted that, after the cooperative control unit sends the uplink interference judgment result to the base station, the cooperative control unit may also send interference sampling configuration information to the satellite-borne base station, so as to instruct the satellite-borne base station to perform uplink interference measurement based on a preset time interval, and send a new measurement result to the cooperative control unit.

Specifically, the satellite-borne base station performs uplink interference measurement at intervals of a longer period according to the interference sampling configuration information, and sends a new measurement result to the cooperative control unit through the feed link.

Furthermore, the cooperative control unit can compare the new measurement result with the original measurement result, and determine an uplink interference suppression scheme of the satellite-borne base station according to the comparison result.

After the uplink interference judgment result is sent to the base station by the cooperative control unit, the interference sampling configuration information can be sent to the satellite-borne base station to instruct the satellite-borne base station to carry out uplink interference measurement based on a preset time interval, and a new measurement result is sent to the cooperative control unit, so that the satellite-borne base station is prevented from frequently carrying out uplink interference measurement, and the satellite resource consumption of the satellite-borne base station during uplink interference suppression can be effectively saved.

In one embodiment, after transmitting the interference sampling configuration information to the base station, further comprising:

Specifically, after receiving a new measurement result sent by the satellite-borne base station each time, the cooperative control unit can compare the new measurement result with a previous measurement result, thereby determining the fluctuation degree of information between the previous measurement result and the next measurement result. The degree of fluctuation may be characterized by the degree of difference of the data between the two measurement results (e.g., the ratio of the data having a change between the two measurement results to the total data), or by any other information that may be determined by the two measurement results and used to characterize the degree of fluctuation of the data (e.g., whether the amount of the data having a change is greater than a predetermined threshold).

If no change or small change exists between the two measurement results according to the fluctuation degree, the uplink interference judgment result determined last time is sent to the satellite-borne base station or the satellite-borne base station is instructed to carry out interference avoidance according to the existing uplink interference judgment result.

If the fluctuation degree is determined to be large in variation between the two measurement results, the satellite-borne base station is reconfigured to enter a first state, then uplink interference judgment is carried out according to the measurement results obtained by uplink interference measurement carried out by the satellite-borne base station in the first state, and then a new uplink interference judgment result is sent to the satellite-borne base station.

After receiving new measurement results each time, the uplink interference suppression scheme of the satellite-borne base station can be determined according to the fluctuation degree between the front measurement result and the rear measurement result, so that the satellite-borne base station can be prevented from frequently carrying out uplink interference measurement, and the satellite-borne resource consumption of the satellite-borne base station during uplink interference suppression can be effectively saved.

Based on the embodiments, the application collects, analyzes and monitors wave level uplink interference through the newly added cooperative control unit, realizes the sharing of inter-satellite and inter-satellite interference data, avoids the repeated measurement of the uplink interference by the satellite-borne base station, and provides interference avoidance indication and monitoring of interference fluctuation for all satellites of the multi-satellite networking.

And analyzing uplink interference by a frequency domain segmentation and time domain double-threshold method, and adapting to different interference analysis strategies and engineering implementation schemes with different complexity by configuring different frequency domain analysis granularity and time domain double-threshold values.

That is, in consideration of high satellite transmitting cost, precious satellite computing power and energy resources are not easy to expand, a cooperative control unit is newly added on the ground, interference analysis originally carried out on a satellite is moved to the ground, in consideration of slow variation of wave level uplink interference, the frequency cooperative unit can realize inter-satellite and inter-satellite sharing of interference data, and computing power and energy consumption are saved for a satellite-borne base station. In addition, the interference information is configured to the satellite-borne base station before the satellite enters the ground, so that the satellite-borne base station is prevented from being scheduled to the time-frequency domain resource position with interference.

It should be noted that, the embodiment of the present application further provides another uplink interference suppression method, and fig. 4 is a second flow chart of the uplink interference suppression method provided by the embodiment of the present application, as shown in fig. 4, where the uplink interference suppression method includes:

And 410, executing uplink interference measurement to obtain a measurement result under the condition that the first state is determined to be entered, 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 the measurement result to the cooperative control unit.

And step 420, transmitting a measurement result to the cooperative control unit, wherein the measurement result is used for indicating the cooperative control unit to perform uplink interference analysis and transmitting an uplink interference judgment result obtained by the analysis to the base station.

And step 430, receiving an uplink interference judgment result sent by the cooperative control unit, and performing uplink interference suppression based on the uplink interference judgment result.

After receiving the uplink interference judgment result sent by the cooperative control unit, the method further comprises the following steps:

And receiving interference sampling configuration information sent by the cooperative control unit, performing periodic uplink interference measurement based on the interference sampling configuration information, and sending a new measurement result to the cooperative control unit after the uplink interference measurement is completed each time.

And after receiving the uplink interference judgment result sent by the cooperative control unit, the method further comprises the following steps:

It should be noted that, the execution body of the uplink interference suppression method provided by the embodiment of the present application may be a network device, and the network device in the present application may be a base station, where the base station may include a plurality of cells that provide services for a terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application.

The base station in the present application may be a base station in a satellite (i.e., a satellite-borne base station), where the satellite may be communicatively connected to a cooperative control unit disposed on the ground.

The on-board base station may include at least a first state and a second state. The satellite-borne base station does not perform any uplink and downlink scheduling in the first state, at this time, the NTN terminal in the wave position does not send any signal to the satellite-borne base station, and all signals received by the satellite-borne base station are regarded as interference. The second state is the base station operating state in a general sense.

In one embodiment, the present application may preset the interference decision threshold asThe unit is dBm (decibel milliwatt), and the frequency domain interference analysis granularity isThe frequency domain interference duty ratio threshold is set as the unit MHz。

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 cooperative control unit may compare the number of RBs whose NI value exceeds the preset threshold value in the preset frequency domain range with the total number of RBs in the preset frequency domain range.

In one embodiment, in the time domain, since the satellite is regularly moving, the satellite has a process from far to near to far relative to the interference source, so it can be assumed that the interference is gradual in time and not abrupt, as shown in fig. 3, fig. 3 is a schematic diagram of the change of the time domain NI in the uplink interference suppression method provided in the embodiment of the present application, in fig. 3, the horizontal axis represents the time domain, the vertical axis represents the NI value, and the interference threshold, that is, the interference decision threshold, is. The application can preset the time domain interference duty ratio threshold as,. Wherein, the A lower threshold limit is indicated and,Representing an upper threshold limit.

In one embodiment, after the uplink interference decision result is obtained (the satellite is still not in the border at this time), the cooperative control unit may control the base station in the satellite to enter the second state, i.e. configure the satellite-borne base station to enter the second state, thereby indicating that the satellite-borne base station may recover uplink and downlink scheduling, and then send the uplink interference decision result to the satellite-borne base station.

In one embodiment, after the cooperative control unit sends the uplink interference judgment result to the base station, the cooperative control unit can also send interference sampling configuration information to the satellite-borne base station, so as to instruct the satellite-borne base station to perform uplink interference measurement based on a preset time interval, and send a new measurement result to the cooperative control unit.

In one embodiment, after each time a new measurement result sent by the satellite-borne base station is received, the cooperative control unit may compare the new measurement result with a previous measurement result, thereby determining the fluctuation degree of information between the previous measurement result and the next measurement result. The degree of fluctuation may be characterized by the degree of difference of the data between the two measurement results (e.g., the ratio of the data having a change between the two measurement results to the total data), or by any other information that may be determined by the two measurement results and used to characterize the degree of fluctuation of the data (e.g., whether the amount of the data having a change is greater than a predetermined threshold).

Fig. 5 is a schematic diagram of an uplink interference analysis networking in the uplink interference suppression method provided by the embodiment of the present application, as shown in fig. 5, a first cooperative control unit is added on the ground, and for satellites that do not serve wave bits (e.g., wave bit 1, wave bit 2, wave bit 3, etc.), the first cooperative control unit sends a measurement instruction of uplink interference and interference information to the satellites before entering (i.e., scene one). And configuring the base station of the satellite to enter a first state, so that the base station can execute uplink interference measurement in the first state (namely, a scene II) and send real-time interference data to the first cooperative control unit as a measurement result. And the cooperative control unit can perform uplink interference judgment according to the strategy data, send the obtained uplink interference judgment result to the satellite base station and configure the satellite base station to enter a second state (namely a third scene), and the satellite base station can perform interference avoidance according to the uplink interference judgment result. And the first cooperative control unit also transmits 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 transmit periodic interference data to the first cooperative control unit as a measurement result. After receiving the new measurement result, the first cooperative control unit compares the new measurement result with the existing measurement data to determine an uplink interference suppression scheme of the base station.

The uplink interference suppression device provided by the application is described below, and the uplink interference suppression device described below and the uplink interference suppression method described above can be referred to correspondingly.

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

The uplink interference suppression device comprises:

The uplink interference suppression device controls the base station in the connected satellite to enter the first state before the satellite enters the wave position area to be served through the cooperative control unit arranged on the ground, so that the base station is instructed to execute uplink interference measurement and send the measurement result to the cooperative control unit under the condition that uplink and downlink scheduling is not carried out, further, the cooperative control unit can receive the measurement result sent by the base station and determine an uplink interference judgment result based on the measurement result, and further, the cooperative control unit can instruct the base station to carry out uplink interference suppression according to the uplink interference judgment result by sending the uplink interference judgment result to the base station. Therefore, by arranging the cooperative control unit on the ground, the base station in the satellite can be controlled to perform uplink interference measurement before entering, the base station in the satellite is prevented from frequently performing uplink interference measurement and analysis, and the uplink interference analysis originally performed on the base station of the satellite is moved to the ground for execution by the cooperative control unit, so that resources used by the base station in the satellite for uplink interference analysis can be saved. Therefore, the on-board resource consumption of the on-board base station when the uplink interference is suppressed can be effectively saved.

In one embodiment, the determining module is specifically configured to:

In one embodiment, the determining module is further configured to:

In one embodiment, the first transmitting module is further configured to:

In one embodiment, the uplink interference suppression device further includes:

In one embodiment, the suppression module is further configured to:

Fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present application, and referring to fig. 6, the embodiment of the present application further provides a network device, which may include a memory 610, a transceiver 620, and a processor 630;

the memory 610 is used for storing a computer program, the transceiver 620 is used for receiving and transmitting data under the control of the processor 630, and the processor 630 is used for reading the computer program in the memory 610 and performing the following operations:

Wherein in fig. 6, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 630 and various circuits of memory represented by memory 610, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 620 may be a number of elements, i.e. comprising a transmitter and a receiver, providing a unit for communicating with various other apparatus over a transmission medium. The processor 630 is responsible for managing the bus architecture and general processing, and the memory 610 may store data used by the processor 630 in performing operations.

Fig. 7 illustrates a physical schematic diagram of an electronic device, which may include a processor (processor) 710, a communication interface (Communications Interface) 720, a memory (memory) 730, and a communication bus 740, where the processor 710, the communication interface 720, and the memory 730 communicate with each other via the communication bus 740, as shown in fig. 7. The processor 710 may invoke logic instructions in the memory 730 to perform a method of controlling a base station in a satellite to enter a first state before the satellite enters a wave zone to be served, wherein the first state is used for indicating the base station to perform uplink interference measurement without uplink and downlink scheduling, and sending a measurement result to a cooperative control unit;

Or performing the following method:

Further, the logic instructions in the memory 730 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the related art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. The storage medium includes a U disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, an optical disk, or other various media capable of storing program codes.

In yet another aspect, embodiments of the present application further provide a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the method provided in the above embodiments, for example, including controlling a base station in a satellite to enter a first state before the satellite enters a wave zone to be served, where the first state is used to instruct the base station to perform uplink interference measurement without uplink and downlink scheduling, and sending a measurement result to a cooperative control unit;

Or comprises:

the method comprises the steps of executing uplink interference measurement under the condition of determining to enter a first state, and obtaining a measurement result, wherein the first state is used for indicating the base station to execute uplink interference measurement under the condition of not carrying out uplink and downlink scheduling, and sending the measurement result to a cooperative control unit;

In yet another aspect, an embodiment of the present application further provides a computer program product, where a computer program is stored, where the computer program is implemented when executed by a processor to perform a method provided in the foregoing embodiments, for example, includes controlling a base station in a satellite to enter a first state before the satellite enters a wave bit region to be served;

Or comprises:

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on such understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the related art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that the above-mentioned embodiments are merely illustrative of the application, and not limiting. Although the application has been described in detail with reference to the embodiments, those skilled in the art will understand that various combinations, modifications, or equivalent substitutions can be made to the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. The uplink interference suppression method is characterized by being applied to a cooperative control unit, wherein the cooperative control unit is arranged on the ground and is in communication connection with a satellite, and the uplink interference suppression method comprises the following steps:

2. The method of uplink interference suppression according to claim 1, wherein the determining an uplink interference decision result based on the measurement result includes:

3. The method of uplink interference suppression according to claim 2, wherein the NI information includes an NI value of at least one resource block RB at least one preset time point, and the determining a frequency domain interference decision result according to the noise and interference NI information in the measurement result includes:

4. The method of uplink interference suppression according to claim 2, wherein the frequency domain interference decision result includes at least one decision result of a preset frequency domain range at least one preset time point, and the decision result is that uplink interference exists or no uplink interference exists;

5. The uplink interference suppression method according to any one of claims 1 to 4, further comprising, before the sending the uplink interference decision result to the base station:

6. The uplink interference suppression method according to claim 1, further comprising, after the sending the uplink interference decision result to the base station:

7. The uplink interference suppression method according to claim 6, further comprising, after said transmitting interference sampling configuration information to the base station:

8. The uplink interference suppression method is characterized by being applied to a base station in a satellite, wherein the satellite is in communication connection with a cooperative control unit arranged on the ground, and the uplink interference suppression method comprises the following steps:

9. The method of uplink interference suppression according to claim 8, further comprising, after the receiving the uplink interference decision result sent by the cooperative unit:

10. The method of uplink interference suppression according to claim 8, further comprising, after the receiving the uplink interference decision result sent by the cooperative unit:

11. An uplink interference suppression device, comprising:

12. An uplink interference suppression device, comprising:

13. A network device comprising a memory, a transceiver, and a processor;

14. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the uplink interference suppression method according to any one of claims 1 to 10 when executing the computer program.

15. A storage medium being a non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the uplink interference suppression method according to any one of claims 1 to 10.

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