CN115835382B

CN115835382B - Interference suppression method, device, equipment and readable storage medium

Info

Publication number: CN115835382B
Application number: CN202310121772.XA
Authority: CN
Inventors: 王晓云; 李晗; 韩柳燕; 柯颋
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-07-04
Anticipated expiration: 2043-02-16
Also published as: CN115835382A

Abstract

The application discloses an interference suppression method, device, equipment and readable storage medium, and relates to the technical field of wireless communication. The method is applied to a first base station in a TDD system and comprises the following steps: receiving interference indication information sent by a second base station in the TDD system, wherein the interference indication information carries uplink interference intensity information of the second base station and an identifier of the second base station; acquiring a first preset GP value based on the interference indication information; and adjusting the current GP value of the first base station to a first preset GP value, and increasing the first preset GP value according to a first step length until the uplink interference intensity of the second base station is smaller than a second threshold value. According to the scheme, the GP value can be regulated to a proper size as soon as possible, the GP regulating time is shortened, the atmospheric waveguide interference can be quickly and effectively restrained, and the communication reliability is ensured.

Description

Interference suppression method, device, equipment and readable storage medium

Technical Field

The present application belongs to the field of wireless communication technologies, and in particular, to an interference suppression method, an apparatus, a device, and a readable storage medium.

Background

In the traditional time division duplex (Time Division Duplexing, TDD) interference analysis and design, the inter-domain interference problem is mainly considered, and the maximum propagation distance of interference signals between base stations does not exceed the line-of-sight distance between two base stations. Due to the atmospheric waveguide effect, propagation interference exceeding the maximum line-of-sight distance may occur between two base stations in practical applications. The atmospheric waveguide effect means that radio waves no longer propagate along a straight line but curved line due to the non-uniformity of the refractive index of the atmosphere, and when the atmospheric waveguide is generated, ultra-long distance propagation can be achieved because of the existence of a layer in which reverse temperature or water vapor becomes drastically small with height in the troposphere, in which the waves form super-refractive propagation, most of the wave radiation is confined in the layer, similar to propagation in a waveguide, and the propagation loss of radio signals in an atmospheric waveguide is small. The signal propagation delay exceeds the length of a Guard Period (GP) designed by the TDD system, resulting in downlink interference and uplink interference.

Under the global interference scene with the atmospheric waveguide condition, the original GP length design and static configuration scheme cannot effectively avoid the atmospheric waveguide interference problem.

Disclosure of Invention

The embodiment of the application provides an interference suppression method, an interference suppression device, interference suppression equipment and a readable storage medium, which can solve the problem that the existing GP length design and static configuration scheme cannot effectively avoid interference of an atmospheric waveguide under the condition that the atmospheric waveguide exists.

In order to solve the above technical problems, an embodiment of the present application provides an interference suppression method, which is applied to a first base station in a time division duplex TDD system, including:

receiving interference indication information sent by a second base station in the TDD system, wherein the interference indication information carries uplink interference intensity information of the second base station and an identifier of the second base station, and the interference indication information is sent by the second base station under the condition that the uplink interference intensity is greater than or equal to a first threshold value;

acquiring a first preset protection period GP value based on the interference indication information;

the current GP value of the first base station is adjusted to be a first preset GP value, and the first preset GP value is increased according to a first step length until the uplink interference intensity of the second base station is smaller than a second threshold value;

The first preset GP value is larger than the current GP value, the current GP value is larger than or equal to an initial GP value, the initial GP value is determined based on the maximum line-of-sight transmission distance between base stations, and the maximum line-of-sight transmission distance is determined based on the altitude of the second base station and the antenna altitude.

Optionally, the acquiring, based on the interference indication information, a first preset guard period GP value includes:

acquiring the current value of the related parameter of the atmospheric waveguide;

and acquiring the first preset GP value based on the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station and the current GP value of the first base station.

Optionally, the obtaining the first preset GP value based on the current value of the atmospheric waveguide related parameter, the uplink interference strength information, the identifier of the second base station, and the current GP value of the first base station includes:

transmitting the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identification of the second base station and the current GP value of the first base station to a cloud server;

receiving the first preset GP value returned by the cloud server;

the first preset GP value is obtained by the cloud server inputting the atmospheric waveguide interference history data, the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station, and the current GP value of the first base station into a first AI model.

and inputting the atmospheric waveguide interference historical data, the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identification of the second base station and the current GP value of the first base station into a first AI model to obtain a first preset GP value.

Optionally, the method further comprises:

receiving interference elimination indication information sent by the second base station, wherein the interference elimination indication information is sent by the second base station under the condition that the uplink interference intensity is smaller than a second threshold value;

and stopping increasing the first preset GP value according to the interference elimination indication information.

Optionally, the method further comprises:

receiving a first instruction sent by the second base station, wherein the first instruction is used for indicating that the uplink interference intensity of the second base station is smaller than or equal to a third threshold value;

according to the first indication, reducing the first preset GP value according to a second step length;

wherein the reduced first preset GP value is greater than or equal to the initial GP value.

The embodiment of the application also provides an interference suppression method, which is applied to a second base station in a Time Division Duplex (TDD) system and comprises the following steps:

under the condition that the uplink interference intensity is detected to be greater than or equal to a first threshold value, transmitting interference indication information to a first base station in the TDD system, enabling the first base station to acquire a first preset protection period (GP) value, adjusting the current GP value of the first base station to be the first preset GP value, and increasing the first preset GP value according to a first step length until the uplink interference intensity of the second base station is smaller than a second threshold value;

the interference indication information carries uplink interference intensity information of a second base station and an identifier of the second base station, the first preset GP value is larger than the current GP value, the current GP value is larger than or equal to an initial GP value, the initial GP value is determined based on a maximum line-of-sight transmission distance between the base stations, and the maximum line-of-sight transmission distance is determined based on an altitude of the second base station and an antenna altitude.

Optionally, the method further comprises:

acquiring a second preset GP value based on the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station and the GP value currently used by the second base station;

And adjusting the current GP value of the second base station to a second preset GP value, and increasing the second preset GP value according to a third step length until the uplink interference intensity of the second base station is smaller than a fourth threshold value.

Optionally, the obtaining a second preset GP value based on the current value of the atmospheric waveguide related parameter, the uplink interference strength information, the identifier of the second base station, and the GP value currently used by the second base station includes:

transmitting the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identification of the second base station and the GP value currently used by the second base station to a cloud server;

receiving the second preset GP value returned by the cloud server;

the second preset GP value is obtained by the cloud server inputting the atmospheric waveguide interference history data, the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station, and the GP value currently used by the second base station into a second AI model.

And inputting the atmospheric waveguide interference historical data, the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identification of the second base station and the current GP value used by the second base station into a second AI model, and determining a second preset GP value.

Optionally, the method further comprises:

and under the condition that the uplink interference intensity is detected to be smaller than a second threshold value, transmitting interference elimination instruction information to the first base station, so that the first base station stops increasing the first preset GP value.

Optionally, the method further comprises:

when the uplink interference intensity is detected to be smaller than or equal to a third threshold value, a first indication is sent to the first base station, so that the first base station reduces a first preset GP value according to a second step length;

the reduced first preset GP value is greater than or equal to the initial GP value, and the first indication is used to indicate that uplink interference strength of the second base station is less than or equal to a third threshold.

The embodiment of the application also provides an interference suppression device, which is applied to a first base station in a TDD system and comprises:

a first receiving module, configured to receive interference indication information sent by a second base station in the TDD system, where the interference indication information carries uplink interference strength information of the second base station and an identifier of the second base station, where the interference indication information is sent by the second base station when uplink interference strength is greater than or equal to a first threshold;

The first acquisition module is used for acquiring a first preset protection period GP value based on the interference indication information;

the first adjusting module is used for adjusting the current GP value of the first base station to a first preset GP value, and increasing the first preset GP value according to a first step length until the uplink interference intensity of the second base station is smaller than a second threshold value;

The embodiment of the application also provides an interference suppression device, which is a first base station in the TDD system and comprises a transceiver and a processor;

the transceiver is used for: receiving interference indication information sent by a second base station in the TDD system, wherein the interference indication information carries uplink interference intensity information of the second base station and an identifier of the second base station, and the interference indication information is sent by the second base station under the condition that the uplink interference intensity is greater than or equal to a first threshold value;

The processor is configured to: acquiring a first preset protection period GP value based on the interference indication information;

The embodiment of the application also provides an interference suppression device, which is a first base station in a TDD system and comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the steps of the interference suppression method.

The embodiment of the application also provides an interference suppression device, which is applied to a second base station in a TDD system and comprises:

a first sending module, configured to send interference indication information to a first base station in the TDD system when the uplink interference strength is detected to be greater than or equal to a first threshold, so that the first base station obtains a first preset guard period GP value, adjusts a current GP value of the first base station to be a first preset GP value, and increases the first preset GP value according to a first step size until the uplink interference strength of the second base station is less than a second threshold;

The embodiment of the application also provides an interference suppression device, which is a second base station in the TDD system and comprises a transceiver and a processor;

the transceiver is used for: under the condition that the uplink interference intensity is detected to be greater than or equal to a first threshold value, transmitting interference indication information to a first base station in the TDD system, enabling the first base station to acquire a first preset protection period (GP) value, adjusting the current GP value of the first base station to be the first preset GP value, and increasing the first preset GP value according to a first step length until the uplink interference intensity of the second base station is smaller than a second threshold value;

The embodiment of the application also provides an interference suppression device, which is a second base station in the TDD system, and comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the steps of the interference suppression method when executing the program.

The embodiments of the present application also provide a readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method described above.

The beneficial effects of this application are:

according to the scheme, the first preset GP value is obtained through interference indication information sent by the second base station in the received TDD system; the current GP value of the first base station is adjusted to be a first preset GP value, and the first preset GP value is increased according to a first step length until the uplink interference intensity of the second base station is smaller than a second threshold value; therefore, the GP value can be regulated to a proper size as soon as possible, the GP regulating time is shortened, the atmospheric waveguide interference can be quickly and effectively restrained, and the communication reliability is ensured.

Drawings

FIG. 1 is a schematic view of GP in a frame structure;

fig. 2 is one of the flow diagrams of the interference suppression method according to the embodiment of the present application;

FIG. 3 is an atmospheric waveguide interference suppression flow chart;

FIG. 4 is a second flow chart of the interference suppression method according to the embodiment of the present application;

FIG. 5 is one of the block diagrams of the interference suppression device of the present embodiment;

fig. 6 shows a block diagram of an interference suppression device according to an embodiment of the present application;

fig. 7 is a second schematic block diagram of the interference suppression device according to the embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The related art related to the present application is explained below.

In a TDD-based mobile communication system, since an UpLink (UL) signal transmitted from a User Equipment (UE) to a Base Station (BS) and a DownLink (DL) signal transmitted in opposite directions are alternately multiplexed along time on the same channel, when signals from other cells in the TDD system overlap with UL slots of the Base Station or DL slots of the UE, serious interference may be caused, affecting system performance, and even failing to connect a call.

In order to prevent uplink and downlink interference of the TDD system, the system designs GP in a frame structure and requires time synchronization precision between base stations to meet microsecond level.

The GP is provided at a DL-to-UL (DL-to-UL) switching point, as shown in fig. 1, for reducing interference during DL-to-UL switching. T (T) _{_(DL_UL)} For ensuring that the base transceiver station and the UE transceiver have sufficient time to switch between transmitting and receiving. The guard period allocated for UL-to-DL handover is defined by TA _{_offset} Ensuring.

Under the condition that the base stations meet certain time precision requirements (namely phase synchronization), signals from other cells are not overlapped with the UL time slot of the base station or the DL time slot of the UE through the uplink and downlink guard time interval of the GP in a certain inter-station distance range, so that interference can be avoided.

The interference suppression method, device, equipment and readable storage medium provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings by means of specific embodiments and application scenarios thereof.

As shown in fig. 2, at least one embodiment of the present application provides an interference suppression method, which is applied to a first base station in a TDD system, and includes:

step 201, receiving interference indication information sent by a second base station in the TDD system;

the interference indication information carries uplink interference intensity information of a second base station and an identifier of the second base station, and is sent by the second base station when the uplink interference intensity is greater than or equal to a first threshold value;

the identifier of the second base station may be, for example, an ID of the second base station, or may be, for example, a coordinate position of the second base station, and the first base station may know which base station the received interference instruction information is transmitted after acquiring the identifier of the second base station.

Step 202, acquiring a first preset protection period GP value based on the interference indication information;

step 203, adjusting the current GP value of the first base station to a first preset GP value, and increasing the first preset GP value according to a first step size until the uplink interference strength of the second base station is less than a second threshold;

The first threshold value and the second threshold value may be the same or different. Alternatively, the first threshold and the second threshold may be obtained by means of a protocol convention.

The first preset GP value is used as a basis for adjustment, the first base station does not increase the step size on the basis of the current GP value, but increases the current value to the first preset GP value, and then increases the step size on the basis of the first preset GP value, so that the GP value can be adjusted to a proper size as soon as possible, the adjustment time of the atmospheric waveguide interference can be reduced, and the atmospheric waveguide interference can be suppressed as soon as possible.

It should be noted that, the first step size may be a protocol contract or a higher layer configuration.

Optionally, the maximum line-of-sight transmission distance between base stations in the embodiment of the present application is calculated by the following formula:

equation one,

；

Wherein, the liquid crystal display device comprises a liquid crystal display device,

r is the earth radius, H is the altitude value of the base station, and H is the antenna height of the base station.

It will be appreciated that the maximum line-of-sight transmission distances of all base stations can be obtained by the above formula one.

Further, after determining the maximum line-of-sight transmission distance, the initial GP value may be determined according to equation two:

formula II, T _GP ≥T _Sync +T _{bts_rampdown} +d _LS /c；

Wherein T is _GP For initial GP value, T _Sync For base station time synchronization errors, for example, 3us, T may be selected according to TDD system requirements _{bts_rampdown} The processing time for switching between the uplink and the downlink may be, for example, 1us, and c is the speed of light.

It should be noted that, by determining the initial GP value by using the maximum line-of-sight transmission distance, a more appropriate GP value can be set as much as possible, thereby reducing the occurrence probability of atmospheric waveguide interference.

It should be noted that, when the first base station does not make the GP adjustment before the adjustment, the current value of the adjustment is equal to the initial GP value; if the first base station has performed a GP adjustment prior to this adjustment, the current value of this adjustment is typically greater than the initial GP value.

In this embodiment of the present application, the second base station refers to a interfered base station, and the first base station is an opposite base station of the interfered base station, that is, a base station performing GP value adjustment.

Optionally, a specific implementation manner of step 202 in the embodiment of the present application includes:

Step a, obtaining the current value of the related parameter of the atmosphere waveguide;

it should be noted that the atmospheric waveguide-related parameter may include, but is not limited to, at least one of the following:

the time when the atmospheric wave occurs, weather (including meteorological factors such as air temperature, air pressure, humidity, cloud and rain Lei Xueshuang).

Alternatively, the time at which the atmospheric waveguide occurs may include, but is not limited to: coarse granularity time of occurrence of the atmospheric waveguide (e.g., month (for indicating the season of occurrence of the atmospheric waveguide)), fine granularity time of occurrence of the atmospheric waveguide (e.g., time period (for indicating at which time of day the atmospheric waveguide occurs, e.g., in the morning, afternoon, evening, etc.) of the day).

The above-mentioned parameter related to the atmospheric waveguide is used as a cause of the atmospheric waveguide to determine the first preset GP value.

Step b, acquiring the first preset GP value based on the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station and the current GP value of the first base station;

optionally, the embodiments of the present application provide two ways to obtain the first preset GP value, which are specifically described below.

The cloud server determines a first preset GP value

Optionally, an implementation manner of the step b includes:

receiving the first preset GP value returned by the cloud server;

It should be noted that, in this manner, the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station and the current GP value of the first base station are sent to the cloud server, and the cloud server acquires the first preset GP value and then sends the first preset GP value to the first base station.

It should be noted that, the first AI model is a network model trained in advance, and a network model whose output value only includes a GP value can be obtained through training, and the cloud server can determine the first preset GP value by directly using the first AI model.

Optionally, the cloud server automatically infers a first preset GP value based on the first AI model according to the atmospheric waveguide interference historical data and the reported current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identification of the second base station and the current GP value of the first base station, that is, the atmospheric waveguide interference historical data and the reported current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identification of the second base station and the current GP value of the first base station are input amounts of the first AI model, and the first preset GP value is an output amount of the first AI model.

Alternatively, the first AI model described in the embodiments of the present application may be any one of the supervised learning models satisfying the following reasoning process, or a weighted combination of several supervised learning models.

The reasoning process of the first AI model is: the input data of the model is an N-dimensional vector

(including data such as the atmospheric waveguide related parameter, uplink interference intensity information, the identification of the second base station, and the current GP value of the first base station), the output data is a continuous value y (the first preset GP value), and the training process obtains the decision function +.>

Is a process of (2).

Available supervised learning models include, but are not limited to, neural networks, support vector machines, K-nearest neighbor models, and the like.

Taking a neural network model as an example, the model is provided with at least one hidden layer, and the activation function can be selected from sigmoid function, softmax function and the like. At this time, the liquid crystal display device,

is a nonlinear function of a linear combination of input variables. The training process is to calculate all connection weight coefficients in the neural network through an error back propagation algorithm, so that the error between the model output predicted value and the historical data is minimum.

Taking a K-nearest model as an example, the model selects K historical samples closest to an input variable in a high-dimensional space, and takes the average or median of the first preset GP values of the K historical samples as the predicted value of the current input variable.

The atmospheric waveguide interference history data includes: the interference intensity information received by the first base station, the GP adjustment value corresponding to the interference intensity information (which may also be understood as a first preset GP value), the identifier of the second base station, and the value of the atmospheric waveguide related parameter corresponding to the interference intensity information are received at different moments.

Mode two, the first base station determines the first preset GP value by itself

Optionally, an implementation manner of the step b includes:

It should be noted that, in this case, the first base station performs the acquisition of the first preset GP value by itself, and the acquisition mode is the same as that of the cloud server, which is not described herein again.

Optionally, after step 203, the method further comprises:

Optionally, the interference cancellation indication information may carry uplink interference strength information corresponding to the second base station when interference is cancelled.

When the interfered base station detects that the uplink interference level thereof has fallen below a certain threshold, the interfered base station transmits indication information that the interference has been eliminated to the opposite base station. When the opposite base station receives the indication information that the interference sent by the interfered base station is eliminated, the GP value is not adjusted. Meanwhile, the interference intensity information and the GP value are stored locally and updated to an atmospheric waveguide interference historical database, and training of the first AI model is conducted again; or the interference intensity information and the GP value setting at the moment are stored locally and reported to the cloud controller, and the cloud controller updates the interference intensity information and the GP value setting to the atmospheric waveguide interference historical database to train the first AI model again.

Optionally, after step 203, the method further comprises:

It should be noted that, the uplink interference strength being less than or equal to the third threshold may be understood as that the current uplink interference is weak, that is, when the atmospheric waveguide interference between the base stations is detected to be weak, the GP value is automatically reduced according to a certain adjustment step, which should be noted that the GP value after the reduction is still greater than the initial GP value.

It should be noted that, the second step size may be a protocol convention or a higher layer configuration.

The following describes a detailed implementation procedure of the embodiment of the present application, taking the first GP adjustment performed by the first base station as an example.

As shown in fig. 3, the specific implementation process includes:

step 301, determining an initial GP value according to a maximum line-of-sight transmission distance between base stations;

step 302, a second base station monitors uplink interference intensity received by an atmospheric waveguide;

Step 303, judging whether the uplink interference strength is greater than or equal to a first threshold;

if the uplink interference strength is greater than or equal to the first threshold, executing step 304, otherwise executing step 308;

step 304, the second base station sends interference indication information to the first base station;

the interference indication information carries uplink interference strength information of a second base station and an identifier of the second base station.

Step 305, the first base station stores the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station and the current GP value of the first base station locally and reports to the cloud server;

step 306, the cloud server inputs the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station and the current GP value of the first base station into a first AI model, obtains a first preset GP value, and sends the first preset GP value to the first base station;

step 307, the first base station adjusts the current GP value of the first base station to a first preset GP value, and increases the first preset GP value according to a first step size.

In this case, the current GP value of the first base station is equal to the initial GP value of the first base station.

Step 308, the second base station sends interference cancellation indication information to the first base station;

step 309, the first base station stops increasing the first preset GP value according to the interference cancellation indication information;

step 310, storing the interference intensity information at the interference elimination moment and the final first preset GP value in the local and reporting to the cloud server;

and 311, the cloud server updates the interference intensity information at the interference elimination moment and the final first preset GP value into the atmospheric waveguide interference disturbance historical data, and optimizes the first AI model.

Optionally, after the second base station sends the interference indication information to the first base station, the second base station may also adjust the GP value, and the specific implementation manner includes:

step 210, obtaining the current value of the atmospheric waveguide related parameter;

step 211, obtaining a second preset GP value based on the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station, and the GP value currently used by the second base station;

and step 213, adjusting the current GP value of the second base station to a second preset GP value, and increasing the second preset GP value according to a third step length until the uplink interference intensity of the second base station is smaller than a fourth threshold value.

The fourth threshold value and the first threshold value may be the same or different. Alternatively, the fourth threshold may be obtained by means of protocol conventions or higher layer configurations.

Optionally, the embodiments of the present application provide two ways to obtain the second preset GP value, which are specifically described below.

Mode A, the cloud server determines a second preset GP value

Optionally, an implementation of step 211 described above includes:

receiving the second preset GP value returned by the cloud server;

It should be noted that, in this manner, the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station and the current GP value of the second base station are sent to the cloud server, and the cloud server acquires the second preset GP value and then sends the second preset GP value to the second base station.

It should be noted that, the second AI model is a network model trained in advance, and a network model whose output value only includes the GP value can be obtained through training, and the cloud server can determine the second preset GP value by directly using the second AI model.

Optionally, the cloud server automatically infers a second preset GP value based on the second AI model according to the atmospheric waveguide interference historical data and the reported current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station and the GP value currently used by the second base station, that is, the atmospheric waveguide interference historical data and the reported current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station and the GP value currently used by the second base station are input amounts of the second AI model, and the second preset GP value is an output amount of the second AI model.

Mode B, the second base station determines the second preset GP value by itself

Optionally, an implementation of step 211 described above includes:

It should be noted that, in this case, the second base station performs the acquisition of the second preset GP value by itself, and the acquisition mode is the same as that of the cloud server, which is not described herein again.

It should be noted that, the process of acquiring the second AI model is similar to that of acquiring the first AI model, and will not be described herein.

Optionally, when a plurality of base stations in the same physical location detect that the uplink interference level exceeds a certain threshold, the GP value is adjusted to be higher by controlling all the base stations in the same area, and specifically, the manner of adjusting the GP by the base stations may be referred to the above implementation, which is not described herein.

It should be noted that, the interference problem of the mobile communication, especially the TDD system, is a core problem affecting the large-scale networking capability and performance, and the reasonable setting scheme of the initial GP value in the embodiment of the present application can effectively reduce the interference problem exceeding the maximum line of sight caused by the atmospheric waveguide between the base stations, and improve the performance of the TDD system, which has important application significance for improving the capability and performance of the TDD system.

As shown in fig. 4, the embodiment of the present application further provides an interference suppression method, which is applied to a second base station in a TDD system, and includes:

step 401, when it is detected that the uplink interference intensity is greater than or equal to a first threshold, transmitting interference indication information to a first base station in the TDD system, so that the first base station obtains a first preset guard period GP value, adjusts a current GP value of the first base station to be a first preset GP value, and increases the first preset GP value according to a first step size until the uplink interference intensity of the second base station is less than a second threshold;

Optionally, the method further comprises:

Receiving the second preset GP value returned by the cloud server;

Optionally, the method further comprises:

It should be noted that, in the above embodiments, all descriptions about the second base station side are applicable to the embodiments of the interference suppression method applied to the second base station side, and the same technical effects can be achieved, which are not repeated herein.

As shown in fig. 5, at least one embodiment of the present application further provides an interference suppression device 500, applied to a first base station in a TDD system, including:

a first receiving module 501, configured to receive interference indication information sent by a second base station in the TDD system, where the interference indication information carries uplink interference strength information of the second base station and an identifier of the second base station, where the interference indication information is sent by the second base station when uplink interference strength is greater than or equal to a first threshold;

a first obtaining module 502, configured to obtain a first preset guard period GP value based on the interference indication information;

a first adjusting module 503, configured to adjust a current GP value of the first base station to a first preset GP value, and increase the first preset GP value according to a first step size until uplink interference strength of the second base station is less than a second threshold;

Optionally, the first obtaining module 502 includes:

a first acquisition unit configured to acquire a current value of an atmospheric waveguide-related parameter;

the second obtaining unit is configured to obtain the first preset GP value based on the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station, and the current GP value of the first base station.

Optionally, the second obtaining unit is configured to:

receiving the first preset GP value returned by the cloud server;

Optionally, the second obtaining unit is configured to:

Optionally, the apparatus further comprises:

the second receiving module is used for receiving interference elimination instruction information sent by the second base station, wherein the interference elimination instruction information is sent by the second base station under the condition that the uplink interference intensity is smaller than a second threshold value;

and the execution module is used for stopping increasing the first preset GP value according to the interference elimination indication information.

Optionally, the apparatus further comprises:

the third receiving module is used for receiving a first instruction sent by the second base station, wherein the first instruction is used for indicating that the uplink interference intensity of the second base station is smaller than or equal to a third threshold value;

the second adjusting module is used for reducing the first preset GP value according to the first indication and the second step length;

It should be noted that, the apparatus provided in at least one embodiment of the present application is an apparatus capable of performing the above-mentioned interference suppression method, and all embodiments of the above-mentioned interference suppression method are applicable to the apparatus, and all achieve the same or similar beneficial effects.

At least one embodiment of the present application further provides an interference suppression device, where the interference suppression device is a first base station in a TDD system, and includes a transceiver and a processor;

Optionally, the processor is configured to:

Optionally, the transceiver is configured to:

receiving the first preset GP value returned by the cloud server;

Optionally, the processor is configured to:

Optionally, the transceiver is further configured to:

and the processor is used for stopping increasing the first preset GP value according to the interference elimination indication information.

Optionally, the transceiver is further configured to:

the processor is used for reducing the first preset GP value according to the first indication and the second step length;

As shown in fig. 6, the embodiment of the present invention further provides an interference suppression device, which is a first base station in a TDD system, and includes a processor 600, a transceiver 610, a memory 620, and a program stored in the memory 620 and executable on the processor 600; the transceiver 610 is connected to the processor 600 and the memory 620 through a bus interface, where the processor 600 is configured to read a program in the memory, and perform the following procedures:

Receiving, by a transceiver 610, interference indication information sent by a second base station in the TDD system, where the interference indication information carries uplink interference strength information of the second base station and an identifier of the second base station, where the interference indication information is sent by the second base station when uplink interference strength is greater than or equal to a first threshold;

A transceiver 610 for receiving and transmitting data under the control of the processor 600.

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 600 and various circuits of memory represented by memory 620, 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 610 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including wireless channels, wired channels, optical cables, etc.

The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.

Alternatively, the processor 600 may be a CPU (Central processing Unit), ASIC (Application Specific Integrated Circuit ), FPGA (Field-Programmable Gate Array, field programmable Gate array) or CPLD (Complex Programmable Logic Device ), and the processor may also employ a multi-core architecture.

The processor is configured to execute any of the methods provided in the embodiments of the present application by invoking a computer program stored in a memory in accordance with the obtained executable instructions. The processor and the memory may also be physically separate.

Optionally, the processor 600 is configured to read the program in the memory, and perform the following procedure:

Transmitting the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identification of the second base station and the current GP value of the first base station to a cloud server through a transceiver;

receiving the first preset GP value returned by the cloud server through a transceiver;

Optionally, the processor 600 is configured to read the program in the memory, and further perform the following procedure:

receiving, by a transceiver, interference cancellation indication information sent by the second base station, where the interference cancellation indication information is sent by the second base station when uplink interference strength is less than a second threshold;

receiving, by a transceiver, a first indication sent by the second base station, where the first indication is used to indicate that uplink interference strength of the second base station is less than or equal to a third threshold;

At least one embodiment of the present application further provides an interference suppression device, where the interference suppression device is a first base station in a TDD system, and includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where each process in the embodiment of the interference suppression method is implemented by the processor when the processor executes the program, and the same technical effect can be achieved, so that repetition is avoided, and no redundant description is given here.

As shown in fig. 7, at least one embodiment of the present application further provides an interference suppression device 700, applied to a second base station in a TDD system, including:

a first sending module 701, configured to send, when it is detected that the uplink interference strength is greater than or equal to a first threshold, interference indication information to a first base station in the TDD system, so that the first base station obtains a first preset guard period GP value, adjusts a current GP value of the first base station to be a first preset GP value, and increases the first preset GP value according to a first step size until the uplink interference strength of the second base station is less than a second threshold;

Optionally, the apparatus further comprises:

the second acquisition module is used for acquiring the current value of the atmospheric waveguide related parameter;

the third acquisition module is used for acquiring a second preset GP value based on the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identification of the second base station and the GP value currently used by the second base station;

and the third adjusting module is used for adjusting the current GP value of the second base station to a second preset GP value, and increasing the second preset GP value according to a third step length until the uplink interference intensity of the second base station is smaller than a fourth threshold value.

Optionally, the third obtaining module includes:

the sending unit is used for sending the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station and the GP value currently used by the second base station to the cloud server;

The receiving unit is used for receiving the second preset GP value returned by the cloud server;

Optionally, the third obtaining module is configured to:

Optionally, the apparatus further comprises:

and the second sending module is used for sending interference elimination instruction information to the first base station under the condition that the detected uplink interference intensity is smaller than a second threshold value, so that the first base station stops increasing the first preset GP value.

Optionally, the apparatus further comprises:

a third sending module, configured to send a first indication to the first base station when the uplink interference strength is detected to be less than or equal to a third threshold, so that the first base station reduces a first preset GP value according to a second step size;

At least one embodiment of the present application further provides an interference suppression device, where the interference suppression device is a second base station in a TDD system, and includes a transceiver and a processor;

Optionally, the processor is further configured to:

Optionally, the transceiver is configured to:

receiving the second preset GP value returned by the cloud server;

Optionally, the processor is configured to:

Optionally, the transceiver is further configured to:

At least one embodiment of the present application further provides an interference suppression device, where the interference suppression device is a second base station in a TDD system, and a specific structure of the interference suppression device may be shown in fig. 6, which is not described herein again.

The processor is used for reading the program in the memory, and executing the following processes:

when the uplink interference intensity is detected to be greater than or equal to a first threshold value, transmitting interference indication information to a first base station in the TDD system through a transceiver, enabling the first base station to acquire a first preset protection period (GP) value, adjusting the current GP value of the first base station to be the first preset GP value, and increasing the first preset GP value according to a first step length until the uplink interference intensity of the second base station is smaller than a second threshold value;

Optionally, the processor is configured to read the program in the memory, and further perform the following procedure:

Optionally, the processor is configured to read the program in the memory, and perform the following procedure:

receiving the second preset GP value returned by the cloud server;

At least one embodiment of the present application further provides a readable storage medium, on which a computer program is stored, where the program when executed by a processor implements each process in the embodiments of the interference suppression method described above, and the same technical effects can be achieved, and for avoiding repetition, a description is omitted herein. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), including several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. An interference suppression method applied to a first base station in a Time Division Duplex (TDD) system is characterized by comprising the following steps:

the current GP value of the first base station is regulated to a first preset protection period GP value, and the first preset protection period GP value is increased according to a first step length until the uplink interference intensity of the second base station is smaller than a second threshold value;

The first preset protection period GP value is greater than the current GP value, the current GP value is greater than or equal to an initial GP value, the initial GP value is determined based on a maximum line-of-sight transmission distance between base stations, and the maximum line-of-sight transmission distance is determined based on an altitude of the second base station and an antenna height.

2. The method of claim 1, wherein the obtaining a first preset guard period GP value based on the interference indication information comprises:

and acquiring the first preset protection period GP value based on the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identification of the second base station and the current GP value of the first base station.

3. The method of claim 2, wherein the obtaining the first preset guard period GP value based on the current value of the atmospheric waveguide-related parameter, the uplink interference strength information, the identification of the second base station, and the current GP value of the first base station comprises:

Receiving the GP value of the first preset protection period returned by the cloud server;

the first preset protection period GP value is obtained by the cloud server inputting the atmospheric waveguide interference history data, the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identifier of the second base station, and the current GP value of the first base station into a first AI model.

4. The method of claim 2, wherein the obtaining the first preset guard period GP value based on the current value of the atmospheric waveguide-related parameter, the uplink interference strength information, the identification of the second base station, and the current GP value of the first base station comprises:

and inputting the atmospheric waveguide interference historical data, the current value of the atmospheric waveguide related parameter, the uplink interference intensity information, the identification of the second base station and the current GP value of the first base station into a first AI model to obtain a first preset protection period GP value.

5. The method as recited in claim 1, further comprising:

And stopping increasing the GP value of the first preset protection period according to the interference elimination indication information.

6. The method as recited in claim 1, further comprising:

according to the first indication, reducing the GP value of the first preset protection period according to a second step length;

wherein, the reduced first preset protection period GP value is larger than or equal to the initial GP value.

7. An interference suppression method applied to a second base station in a Time Division Duplex (TDD) system is characterized by comprising the following steps:

under the condition that the uplink interference intensity is detected to be greater than or equal to a first threshold value, transmitting interference indication information to a first base station in the TDD system, enabling the first base station to acquire a first preset protection period (GP) value, adjusting the current GP value of the first base station to be the first preset protection period (GP) value, and increasing the first preset protection period (GP) value according to a first step length until the uplink interference intensity of the second base station is smaller than a second threshold value;

the interference indication information carries uplink interference intensity information of a second base station and an identifier of the second base station, the first preset protection period GP value is larger than the current GP value, the current GP value is larger than or equal to an initial GP value, the initial GP value is determined based on a maximum line-of-sight transmission distance between the base stations, and the maximum line-of-sight transmission distance is determined based on the altitude of the second base station and the antenna height.

8. The method as recited in claim 7, further comprising:

9. The method of claim 8, wherein the obtaining a second preset GP value based on the current value of the atmospheric waveguide-related parameter, the uplink interference strength information, the identity of the second base station, and a GP value currently used by the second base station comprises:

receiving the second preset GP value returned by the cloud server;

10. The method of claim 8, wherein the obtaining a second preset GP value based on the current value of the atmospheric waveguide-related parameter, the uplink interference strength information, the identity of the second base station, and a GP value currently used by the second base station comprises:

11. The method as recited in claim 7, further comprising:

and under the condition that the uplink interference intensity is detected to be smaller than a second threshold value, transmitting interference elimination instruction information to the first base station, so that the first base station stops increasing the GP value of the first preset protection period.

12. The method as recited in claim 7, further comprising:

when the uplink interference intensity is detected to be smaller than or equal to a third threshold value, a first indication is sent to the first base station, so that the first base station reduces a first preset protection period GP value according to a second step length;

the reduced first preset protection period GP value is greater than or equal to the initial GP value, and the first indication is used to indicate that uplink interference strength of the second base station is less than or equal to a third threshold.

13. An interference suppression device applied to a first base station in a TDD system, comprising:

the first adjusting module is used for adjusting the current GP value of the first base station to a first preset protection period GP value, and increasing the first preset protection period GP value according to a first step length until the uplink interference intensity of the second base station is smaller than a second threshold value;

14. An interference suppression device, the interference suppression device being a first base station in a TDD system, comprising a transceiver and a processor;

15. An interference suppression device, being a first base station in a TDD system, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the interference suppression method according to any one of claims 1-6 when the program is executed.

16. An interference suppression device applied to a second base station in a TDD system, comprising:

a first sending module, configured to send interference indication information to a first base station in the TDD system when the uplink interference strength is detected to be greater than or equal to a first threshold, so that the first base station obtains a first preset guard period GP value, adjusts a current GP value of the first base station to be the first preset guard period GP value, and increases the first preset guard period GP value according to a first step size until the uplink interference strength of the second base station is less than a second threshold;

17. An interference suppression device that is a second base station in a TDD system, comprising a transceiver and a processor;

the transceiver is used for: under the condition that the uplink interference intensity is detected to be greater than or equal to a first threshold value, transmitting interference indication information to a first base station in the TDD system, enabling the first base station to acquire a first preset protection period (GP) value, adjusting the current GP value of the first base station to be the first preset protection period (GP) value, and increasing the first preset protection period (GP) value according to a first step length until the uplink interference intensity of the second base station is smaller than a second threshold value;

18. An interference suppression device, being a second base station in a TDD system, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the interference suppression method according to any one of claims 7-12 when the program is executed.

19. A readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the method according to any of claims 1-12.