WO2022126640A1

WO2022126640A1 - Interference avoidance method and base station

Info

Publication number: WO2022126640A1
Application number: PCT/CN2020/137735
Authority: WO
Inventors: 邢金强
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2022-06-23
Also published as: CN116326116A

Abstract

Embodiments of the present application provide an interference avoidance method and a base station, which can reduce radio interference between a terrestrial base station for communicating with a flight and a PLMN base station.The interference avoidance method comprises: a first base station avoids interference with a second base station by coordinating a time-frequency resource with the second base station, wherein the first base station is used for communicating with a flight terminal, and the second base station is a PLMN base station; or the first base station is a PLMN base station, and the second base station is used for communicating with the flight terminal.

Description

Interference avoidance method and base station

technical field

The embodiments of the present application relate to the field of communications, and more particularly, to an interference avoidance method and a base station.

Background technique

It is well known that it is currently difficult to perform communication services such as making calls or surfing the Internet on an airplane, because there is no network coverage in the air like on the ground. One implementation method is aircraft communication based on ground base stations, and continuous coverage is achieved through different ground base stations on the aircraft route to ensure that the aircraft can always have network connection services. However, the flight altitude of the aircraft is above 10,000 meters. To ensure continuous coverage within an affordable range, the coverage area of a single base station must be large enough, that is, the distance between ground base stations will be very large. This leads to a high transmit power of the ground base station, which may cause serious radio interference between the ground base station and the Public Land Mobile Network (PLMN) base station. How to avoid the radio interference between the ground base station and the PLMN base station for communicating with the flight is an urgent problem to be solved.

SUMMARY OF THE INVENTION

The embodiments of the present application provide an interference avoidance method and a base station, which can reduce radio interference between a ground base station for communicating with the flight and a PLMN base station.

In a first aspect, an interference avoidance method is provided, including:

The first base station avoids interference with the second base station by coordinating time-frequency resources with the second base station;

Wherein, the first base station is used to communicate with the flight terminal, and the second base station is a PLMN base station; or, the first base station is a PLMN base station, and the second base station is used to communicate with the flight terminal.

In a second aspect, an interference avoidance method is provided, including:

The first base station sends the first information to the second base station according to the interference information fed back by the flight terminal;

The first information includes the time-frequency resources occupied by the communication service of the flight terminal, and the first information is used to instruct the second base station to reduce the transmit power on the time-frequency resources, or the first information is used to Indicates that the second base station is not allowed to use the time-frequency resource; the first base station is used to communicate with the flight terminal, and the second base station is a PLMN base station.

In a third aspect, an interference avoidance method is provided, including:

The second base station receives the first information sent by the first base station according to the interference information fed back by the flight terminal;

In a fourth aspect, a base station is provided for executing the method in the above-mentioned first aspect.

Specifically, the base station includes functional modules for executing the method in the above-mentioned first aspect.

In a fifth aspect, a base station is provided for executing the method in the second aspect.

Specifically, the base station includes functional modules for executing the method in the second aspect above.

In a sixth aspect, a base station is provided for performing the method in the third aspect.

Specifically, the base station includes functional modules for executing the method in the above third aspect.

In a seventh aspect, a base station is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect.

In an eighth aspect, a base station is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect.

In a ninth aspect, a base station is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the third aspect.

In a tenth aspect, an apparatus is provided for implementing the method in any one of the above-mentioned first to third aspects.

Specifically, the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device on which the apparatus is installed executes the method in any one of the above-mentioned first to third aspects.

In an eleventh aspect, a computer-readable storage medium is provided for storing a computer program, the computer program causing a computer to perform the method in any one of the above-mentioned first to third aspects.

A twelfth aspect provides a computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method in any one of the above-mentioned first to third aspects.

A thirteenth aspect provides a computer program which, when run on a computer, causes the computer to perform the method of any one of the above-mentioned first to third aspects.

Through the technical solution of the first aspect, the first base station avoids interference with the second base station by coordinating time-frequency resources with the second base station.

Through the technical solutions of the second aspect or the third aspect, the first base station instructs the second base station to reduce the transmit power on the time-frequency resources occupied by the flying terminal based on the interference information fed back by the flying terminal, or the first base station is based on the interference information fed back by the flying terminal. The interference information indicates that the second base station does not use the time-frequency resources occupied by the flying terminal, thereby avoiding interference between the first base station and the second base station.

Description of drawings

FIG. 1 is a schematic diagram of a communication system architecture to which an embodiment of the present application is applied.

FIG. 2 is a schematic diagram of an aircraft communication provided by the present application.

FIG. 3 is a schematic diagram of interference between a terrestrial base station and a gNB provided by the present application.

FIG. 4 is a schematic flowchart of an interference avoidance method provided according to an embodiment of the present application.

FIG. 5 is a schematic flowchart of another interference avoidance method provided according to an embodiment of the present application.

FIG. 6 is a schematic diagram of interference avoidance based on interference feedback provided according to an embodiment of the present application.

FIG. 7 is a schematic block diagram of a base station according to an embodiment of the present application.

FIG. 8 is a schematic block diagram of another base station provided according to an embodiment of the present application.

FIG. 9 is a schematic block diagram of still another base station provided according to an embodiment of the present application.

FIG. 10 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

FIG. 11 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.

FIG. 12 is a schematic block diagram of a communication system provided according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. With regard to the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (CDMA) system (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, Advanced Long Term Evolution (Advanced long term evolution, LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. , the embodiments of the present application can also be applied to these communication systems.

Optionally, the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.

Optionally, the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.

The embodiments of the present application describe various embodiments in conjunction with a base station and a terminal device, where a terminal device may also be referred to as user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, and a remote station. , remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

The terminal device may be a station (STATION, ST) in the WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In this embodiment of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).

In this embodiment of the present application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.

As an example and not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.

In this embodiment of the present application, the base station may be a device for communicating with mobile devices, and the base station may be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, or It can be a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle devices, wearable devices, and NR networks. A network device or a base station (gNB) or a base station in a future evolved PLMN network or a base station in an NTN network, etc.

As an example and not a limitation, in this embodiment of the present application, the base station may have a mobile characteristic, for example, the base station may be a mobile device. Optionally, the base station can be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc. Optionally, the network device may also be a base station set in a location such as land or water.

In this embodiment of the present application, a base station may provide services for a cell, and a terminal device communicates with the base station through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a cell corresponding to the base station, A cell can belong to a macro base station or a base station corresponding to a small cell. The small cell here can include: a metro cell, a micro cell, a pico cell, and a femto cell. (Femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

Exemplarily, a communication system 100 to which this embodiment of the present application is applied is shown in FIG. 1 . The communication system 100 may include a base station 110, and the base station 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal). The base station 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.

FIG. 1 exemplarily shows one base station and two terminal devices. Optionally, the communication system 100 may include multiple base stations, and the coverage of each base station may include other numbers of terminal devices. This is not limited.

Optionally, the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.

It should be understood that, in the embodiments of the present application, a device having a communication function in the network/system may be referred to as a communication device. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a base station 110 and a terminal device 120 with a communication function, and the base station 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here; The device may further include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

The terms used in the embodiments of the present application are only used to explain specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third" and "fourth" in the description and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

It should be understood that the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship. For example, if A indicates B, it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.

In this embodiment of the present application, "predefinition" may be implemented by pre-saving corresponding codes, forms, or other means that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). The implementation method is not limited. For example, predefined may refer to the definition in the protocol.

In the embodiments of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which are not limited in this application.

In order to facilitate a better understanding of the embodiments of the present application, the aircraft communication based on the ground base station related to the present application will be described.

It is well known that it is currently difficult to carry out communication services such as making a phone call or surfing the Internet on an airplane, because there is no network coverage in the air like on the ground. Usually, communication is based on satellite communication network, but the communication cost is very high, and the capacity is very small, so it is difficult to popularize. Therefore, aircraft communication based on ground base stations becomes a potential direction.

For example, as shown in Figure 2, continuous coverage is achieved through different ground base stations on the aircraft route, ensuring that the aircraft can always have network connection services. But this approach also has its problems. Generally, the flight altitude of an aircraft is more than 10,000 meters. To ensure continuous coverage within an affordable range, the coverage area of a single ground base station must be large enough, that is, the distance between ground base stations will be very large. This leads to a high transmit power of the ground base station, which may cause serious radio interference. The worst case of this radio interference occurs when the spectrum used by the ground base station overlaps or is adjacent to that of the PLMN base station (eg gNB), as shown in Figure 3. If the interference avoidance is improper, it will cause serious performance loss and even cause danger to the aircraft.

Furthermore, the base stations used to communicate with the aircraft need to have high transmit power to achieve a sufficiently large air cell coverage radius. At the same time, due to the limited number of aircraft in the air and the scattered elapsed time of the aircraft, the actual use efficiency of the ground base station is relatively low. In order to improve the utilization rate of spectrum resources, operators usually use the same spectrum (such as the 100MHz bandwidth of the n79 frequency band) or adjacent spectrum for terrestrial base stations and PLMN base stations (such as gNB) for deployment. frequency interference or adjacent frequency interference.

Based on the above problems, the present application proposes an interference avoidance scheme, which can reduce the mutual interference between a terrestrial base station and a PLMN base station (eg gNB).

The technical solutions of the present application are described in detail below through specific embodiments.

FIG. 4 is a schematic flowchart of an interference avoidance method 200 according to an embodiment of the present application. As shown in FIG. 4 , the method 200 may include at least part of the following contents:

S210, the first base station avoids interference with the second base station by coordinating time-frequency resources with the second base station; wherein the first base station is used to communicate with the flight terminal, and the second base station is a PLMN base station or, the first base station is a PLMN base station, and the second base station is used to communicate with the flight terminal.

In this embodiment of the present application, time-frequency resources are coordinated between the first base station and the second base station to avoid the first base station and the second base station from using the same frequency domain resources at the same time, or to avoid the first base station and the second base station occupying the same Therefore, mutual interference between the first base station and the second base station is avoided.

In some embodiments, it is assumed that the first base station is used to communicate with the flight terminal, and the second base station is a PLMN base station. In this case, the first base station may be the one described in FIG. 2 and FIG. The ground base station that communicates with usually has a high transmit power. The first base station may be some base stations dedicated to communicating with the flight terminal, or it may be multiplexed with some other base stations, which is not limited in this application; the second base station may be It is a PLMN base station, such as eNB, gNB and so on.

In some embodiments, the flying terminal may be a device with flight capability, such as an airplane, unmanned aerial vehicle, hot air balloon, flying car, etc. The flight terminal may also be a terminal carried by the device with flight capability, and the flight terminal may also be A terminal carried by a passenger carrying a device capable of flying is not limited in this embodiment of the present application.

Optionally, in some embodiments, the foregoing S210 may specifically be:

When the priority of the service corresponding to the first base station is higher than the priority of the service corresponding to the second base station, the first base station sends first information to the second base station; wherein the first information is used to indicate The second base station remains silent for the first time period, or the first information is used to indicate that the first base station occupies resources within the first time period.

That is, after receiving the first information, the second base station may know that the first base station requires the second base station to remain silent for the first duration, or may know that the first base station occupies the first duration resources within. Further, the second base station keeps silent for the first time period based on the first information.

Optionally, the first duration is determined according to at least one of the following:

The duration of the service corresponding to the first base station, and the dwell duration of the device communicating with the first base station in the cell served by the first base station.

For example, it is assumed that the first base station is used to communicate with the flight terminal, and the second base station is a PLMN base station. In this case, the communication service between the flight terminal and the first base station has a higher priority. Then, when a flying terminal is about to enter the air cell where the first base station is located, the first base station obtains the flight path, speed and other information of the flying terminal, thereby obtaining the time information of the flying terminal entering and leaving the air cell. During the time period corresponding to the time information (that is, the above-mentioned first time period), the first base station will remain in an open state. In addition, the first base station notifies the second base station (eg gNB) in the adjacent area of the time period corresponding to the time information (ie, the above-mentioned first duration). After receiving the information, the second base station switches the ground terminals in the cell to other frequency points to work. Therefore, the second base station is kept silent at the air communication frequency point, so as to avoid interference to the communication between the first base station and the flight terminal.

For another example, it is assumed that the first base station is a PLMN base station, and the second base station is used to communicate with the flight terminal. In this case, the communication service between the ground terminal and the first base station has a higher priority. Then, when a ground terminal is about to enter the cell where the first base station is located, the first base station can obtain the time information of the ground terminal entering and leaving the cell where the first base station is located. During the time period corresponding to the time information (that is, the above-mentioned first time period), the first base station will remain in an open state. In addition, the first base station notifies the second base station (eg, the ground base station) in the adjacent area of the time period corresponding to the time information (ie, the above-mentioned first duration). After receiving the information, the second base station switches the flight terminals in the cell to other frequency points to work. Therefore, the second base station is kept silent at the communication frequency point where the first base station works, so as to avoid interference to the communication between the first base station and the ground terminal.

Optionally, before the first base station sends the first information, the first base station receives second information sent by the second base station, where the second information is used to request time information for allowing communication.

For example, it is assumed that the first base station is a PLMN base station (gNB), and the second base station is used to communicate with the flight terminal. In this case, when the first base station has a higher priority communication service, if the first base station receives For the transmission time request information from the second base station, the first base station needs to notify the second base station of its occupied time information, so that the second base station is turned on and communicates during the time when the first base station is not occupied.

Optionally, in some embodiments, the foregoing S210 may specifically be:

When the priority of the service corresponding to the first base station is lower than the priority of the service corresponding to the second base station, the first base station receives third information sent by the second base station; wherein the third information is used to indicate The first base station remains silent for the second time period, or the third information is used to indicate that the second base station occupies resources within the second time period;

The first base station remains silent for the second time period according to the third information.

Optionally, the second duration is determined according to at least one of the following:

The duration of the service corresponding to the second base station, and the dwell duration of the device communicating with the second base station in the cell served by the second base station.

For example, it is assumed that the first base station is a PLMN base station and the second base station is used to communicate with the flight terminal. In this case, the communication service between the flight terminal and the second base station has a higher priority. Then, when a flying terminal is about to enter the air cell where the second base station is located, the second base station obtains the flight path, speed and other information of the flying terminal, thereby obtaining the time information of the flying terminal entering and leaving the air cell. During the time period corresponding to the time information (that is, the above-mentioned second time period), the second base station will remain in an open state. In addition, the second base station notifies the first base station (eg gNB) in the adjacent area of the time period corresponding to the time information (ie, the above-mentioned second time period). After receiving the information, the first base station switches the ground terminals in the cell to other frequency points to work. Therefore, the first base station is kept silent at the air communication frequency point, so as to avoid interference to the communication between the second base station and the flight terminal.

For another example, it is assumed that the first base station is used to communicate with the flight terminal, and the second base station is a PLMN base station. In this case, the communication service between the ground terminal and the second base station has a higher priority. Then, when a ground terminal is about to enter the cell where the second base station is located, the second base station can obtain the time information of the ground terminal entering and leaving the cell where the second base station is located. During the time period corresponding to the time information (that is, the above-mentioned second time period), the second base station will remain in an open state. In addition, the second base station notifies the first base station (eg, the ground base station) in the adjacent area of the time period corresponding to the time information (ie, the above-mentioned first duration). After receiving the information, the first base station switches the flight terminals in the cell to other frequency points to work. Therefore, the first base station is kept silent at the communication frequency point where the second base station works, so as to avoid interference to the communication between the second base station and the ground terminal.

Optionally, before the first base station receives the third information sent by the second base station, the first base station sends fourth information to the second base station, where the fourth information is used to request time information for allowing communication.

Optionally, in some embodiments, the foregoing S210 may specifically be:

The first base station sends request information to the second base station before communication, where the request information is used to request time-frequency resources;

The first base station receives response information sent by the second base station, where the response information includes available time-frequency resources of the first base station, wherein the second base station keeps silent on the available time-frequency resources.

For example, assuming that the first base station is used to communicate with the flight terminal, and the second base station is a PLMN base station, before communicating with the flight terminal, the first base station first requests the second base station (eg gNB) for available partial time-frequency resources, and The second base station (eg gNB) locks the time-frequency resource during the process of the flying terminal passing through the air cell where the first base station is located. The second base station (eg gNB) allocates the remaining time-frequency resources to users in the cell for use. Thereby, time-frequency resources are not overlapped, and interference avoidance is realized.

Optionally, in some embodiments, the foregoing S210 may specifically be:

The first base station monitors the time-frequency resource usage of the second base station before communication, and the first base station uses time-frequency resources that are not occupied by the second base station for communication.

Correspondingly, the second base station monitors the time-frequency resource usage of the first base station before communication, and the second base station uses time-frequency resources that are not occupied by the first base station for communication.

It should be noted that, in this embodiment of the present application, the above-mentioned "silence" may refer to standby, that is, no service transmission is performed. For example, the first base station keeps silent on the air communication frequency, which may mean that the first base station does not perform service transmission on the air communication frequency, or the first base station does not use the air communication frequency to transmit services. For another example, the second base station keeps silent on the time-frequency resources available to the first base station, which may mean that the second base station does not perform service transmission on the time-frequency resources available to the first base station, or the second base station does not use the first base station. The time-frequency resources available to the base station transmit services. Other descriptions about "silence" in the embodiments of the present application are also similar, and will not be explained one by one here.

Therefore, in this embodiment of the present application, the first base station avoids interference with the second base station by coordinating time-frequency resources with the second base station. That is, the first base station and the second base station adopt a time division multiplexing manner in spectrum occupation, so as to completely avoid mutual interference.

FIG. 5 is a schematic flowchart of an interference avoidance method 300 according to an embodiment of the present application. As shown in FIG. 5 , the method 300 may include at least part of the following contents:

S310, the first base station sends first information to the second base station according to the interference information fed back by the flight terminal; wherein the first information includes time-frequency resources occupied by the communication service of the flight terminal, and the first information is used to indicate the The second base station reduces the transmit power on the time-frequency resource, or the first information is used to indicate that the second base station is not allowed to use the time-frequency resource; the first base station is used to communicate with the flight terminal, and the second base station is used to communicate with the flight terminal. The base station is a PLMN base station;

S320, the second base station receives the first information sent by the first base station according to the interference information fed back by the flight terminal.

In some embodiments, the first base station may be the ground base station used for communicating with the flight terminal as described in FIG. 2 and FIG. 3 above, and its transmit power is usually high, and the first base station may be some dedicated base station for communicating with the flight terminal. The base station that communicates may also multiplex some other base stations, which is not limited in this application; the second base station is a PLMN base station, for example, an eNB, a gNB, and so on.

In some embodiments, the flying terminal may be a device with flying capability, such as an airplane, an unmanned aerial vehicle, a hot air balloon, a flying car, etc. The flying terminal may also be a terminal carried by a device with flying capability, and the flying terminal may also be A terminal carried by a passenger carrying a device capable of flying is not limited in this embodiment of the present application.

Optionally, the first information carries indication information, where the indication information is used to indicate that the transmission signal of the second base station causes interference to the communication between the first base station and the flight terminal.

Optionally, in some embodiments, the second base station reduces the transmit power on the time-frequency resource according to the first information; or the second base station does not use the time-frequency resource according to the first information.

Optionally, in some embodiments, the above S310 may specifically be: the first base station periodically sends the first information to the second base station according to the interference information fed back by the flight terminal.

Optionally, the period at which the first base station sends the interference information may be determined through negotiation between the first base station and the second base station, or the period at which the first base station sends the interference information may be pre-configured or agreed in an agreement. Alternatively, the period at which the first base station sends the interference information may be configured by the second base station.

Optionally, in some embodiments, the above S310 may specifically be: when the interference value corresponding to the interference information fed back by the flight terminal is greater than the first threshold, the first base station sends the first information to the second base station .

Optionally, the first threshold may be determined through negotiation between the first base station and the second base station, or the first threshold may be pre-configured or agreed in an agreement, or the first threshold may be the first threshold. Two base stations are configured.

Optionally, the flying terminal periodically measures and feeds back the interference information to the first base station.

Optionally, the period at which the in-flight terminal measures interference may be determined through negotiation between the first base station and the in-flight terminal, or the period in which the in-flight terminal measures interference may be pre-configured or agreed in an agreement, or the in-flight terminal may The period for measuring interference may be configured by the first base station.

Optionally, the flying terminal feeds back the interference information to the first base station when the measured interference value is greater than the second threshold.

Optionally, the second threshold may be determined through negotiation between the first base station and the flight terminal, or the second threshold may be pre-configured or agreed in an agreement, or the second threshold may be the first threshold base station configuration.

Optionally, the interference information includes a signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR). Of course, the interference information may also include other types of interference, which is not limited in this application.

That is to say, the above-mentioned interference information measurement feedback, the first base station's interference evaluation, etc. may be periodic (that is, the SINR is measured by the flying terminal at a certain time interval and the interference situation is evaluated by the first base station), and the above-mentioned interference information measurement Feedback, the first base station's interference assessment, etc. can also be event-triggered (that is, only when the SINR measurement value is lower than a certain threshold will the flight terminal feed back this SINR information to the first base station and the first base station will evaluate the interference situation) .

For example, as shown in FIG. 6 , after the flying terminal enters the air cell, it continuously measures the SINR of the received signal, and the transmitted signal of the gNB is actually an interference signal for the flying terminal. The flight terminal informs the ground base station of the measured SINR. If the SINR exceeds a certain threshold, the ground base station instructs the gNB that its transmitted signal will interfere with the communication of the flight terminal. At the same time, the ground base station can also inform the gNB of the time-frequency resources occupied by the communication service of the flight terminal. . After receiving the instruction, the gNB can choose to reduce its transmit power on the time-frequency resources used for communication by the flight terminal, or avoid using the time-frequency resources.

Therefore, in this embodiment of the present application, the first base station instructs the second base station to reduce the transmit power on the time-frequency resources occupied by the air terminal based on the interference information fed back by the air terminal, or the first base station instructs the first base station based on the interference information fed back by the air terminal to reduce the transmit power on the time-frequency resources occupied by the air terminal. The second base station does not use the time-frequency resources occupied by the flying terminal, thereby avoiding interference between the first base station and the second base station.

The method embodiments of the present application are described in detail above with reference to FIGS. 4 to 6 , and the device embodiments of the present application are described in detail below with reference to FIGS. 7 to 12 . It should be understood that the device embodiments and the method embodiments correspond to each other, and are similar to For the description, refer to the method embodiment.

FIG. 7 shows a schematic block diagram of a base station 400 according to an embodiment of the present application. As shown in FIG. 7, the base station 400 includes:

a processing unit 410, configured to avoid interference with the second base station by coordinating time-frequency resources with the second base station;

Wherein, the first base station is used to communicate with the flight terminal, and the second base station is a public land mobile network PLMN base station; or, the first base station is a PLMN base station, and the second base station is used to communicate with the flight terminal.

Optionally, the base station 400 further includes: a communication unit 420,

When the priority of the service corresponding to the first base station is higher than the priority of the service corresponding to the second base station, the communication unit 420 is configured to send the first information to the second base station;

Wherein, the first information is used to instruct the second base station to remain silent for the first time period, or the first information is used to indicate that the first base station occupies resources in the first time period.

Optionally, the base station 400 further includes: a communication unit 420,

The communication unit 420 is configured to receive second information sent by the second base station, where the second information is used to request time information for allowing communication.

Optionally, the base station 400 further includes: a communication unit 420,

When the priority of the service corresponding to the first base station is lower than the priority of the service corresponding to the second base station, the communication unit 420 is configured to receive third information sent by the second base station; for instructing the first base station to remain silent for the second time period, or the third information is used to indicate that the second base station occupies resources in the second time period;

The processing unit 410 is configured to remain silent for the second time period according to the third information.

Optionally, the base station 400 further includes: a communication unit 420,

The communication unit 420 is configured to send fourth information to the second base station, where the fourth information is used to request time information for allowing communication.

Optionally, the base station 400 further includes: a communication unit 420,

The communication unit 420 is configured to send request information to the second base station before communication, where the request information is used to request time-frequency resources;

The communication unit 420 is configured to receive response information sent by the second base station, where the response information includes available time-frequency resources of the first base station, wherein the second base station keeps silent on the available time-frequency resources.

Optionally, the base station 400 further includes: a communication unit 420,

The communication unit 420 is configured to monitor the time-frequency resource usage of the second base station before communication, and the communication unit 420 is configured to perform communication using time-frequency resources not occupied by the second base station.

Optionally, in some embodiments, the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip. The aforementioned processing unit may be one or more processors.

It should be understood that the base station 400 according to the embodiment of the present application may correspond to the first base station in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the base station 400 are respectively for implementing the method 200 shown in FIG. 4 . For the sake of brevity, the corresponding process of the first base station in the above will not be repeated here.

FIG. 8 shows a schematic block diagram of a base station 500 according to an embodiment of the present application. As shown in Figure 8, the base station 500 includes:

a communication unit 510, configured to send the first information to the second base station according to the interference information fed back by the flight terminal;

The first information includes the time-frequency resources occupied by the communication service of the flight terminal, and the first information is used to instruct the second base station to reduce the transmit power on the time-frequency resources, or the first information is used to Indicates that the second base station is not allowed to use the time-frequency resource; the first base station is used to communicate with the flight terminal, and the second base station is a public land mobile network PLMN base station.

Optionally, the communication unit 510 is specifically used for:

The first information is periodically sent to the second base station according to the interference information fed back by the flying terminal.

Optionally, the communication unit 510 is specifically used for:

When the interference value corresponding to the interference information fed back by the flight terminal is greater than the first threshold, the first information is sent to the second base station.

Optionally, the interference information includes a signal-to-interference-noise ratio SINR.

Optionally, in some embodiments, the above-mentioned communication unit may be a communication interface or a transceiver, or an input and output interface of a communication chip or a system-on-chip.

It should be understood that the base station 500 according to the embodiment of the present application may correspond to the first base station in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of the various units in the base station 500 are respectively for implementing the method 300 shown in FIG. 5 . For the sake of brevity, the corresponding process of the first base station in the above will not be repeated here.

FIG. 9 shows a schematic block diagram of a base station 600 according to an embodiment of the present application. As shown in FIG. 9, the base station 600 includes:

A communication unit 610, configured to receive the first information sent by the first base station according to the interference information fed back by the flight terminal;

Optionally, the base station 600 further includes: a processing unit 620,

The processing unit 620 is configured to reduce the transmit power on the time-frequency resource according to the first information; or,

The processing unit 620 is configured to not use the time-frequency resource according to the first information.

It should be understood that the base station 600 according to the embodiment of the present application may correspond to the second base station in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the base station 600 are respectively for realizing the method 300 shown in FIG. 5 . For the sake of brevity, the corresponding process of the second base station in the above will not be repeated here.

FIG. 10 is a schematic structural diagram of a communication device 700 provided by an embodiment of the present application. The communication device 700 shown in FIG. 10 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 10 , the communication device 700 may further include a memory 720 . The processor 710 may call and run a computer program from the memory 720 to implement the methods in the embodiments of the present application.

The memory 720 may be a separate device independent of the processor 710 , or may be integrated in the processor 710 .

Optionally, as shown in FIG. 10, the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.

Among them, the transceiver 730 may include a transmitter and a receiver. The transceiver 730 may further include antennas, and the number of the antennas may be one or more.

Optionally, the communication device 700 may specifically be the first base station in this embodiment of the present application, and the communication device 700 may implement the corresponding processes implemented by the first base station in each method in the embodiment of the present application. Repeat.

Optionally, the communication device 700 may specifically be the second base station in this embodiment of the present application, and the communication device 700 may implement the corresponding processes implemented by the second base station in each method in the embodiment of the present application. Repeat.

FIG. 11 is a schematic structural diagram of an apparatus according to an embodiment of the present application. The apparatus 800 shown in FIG. 11 includes a processor 810, and the processor 810 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 11 , the apparatus 800 may further include a memory 820 . The processor 810 may call and run a computer program from the memory 820, so as to implement the methods in the embodiments of the present application.

The memory 820 may be a separate device independent of the processor 810 , or may be integrated in the processor 810 .

Optionally, the apparatus 800 may further include an input interface 830 . The processor 810 may control the input interface 830 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.

Optionally, the apparatus 800 may further include an output interface 840 . The processor 810 may control the output interface 840 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

Optionally, the apparatus may be applied to the first base station in the embodiment of the present application, and the apparatus may implement the corresponding processes implemented by the first base station in each method in the embodiment of the present application, which is not repeated here for brevity.

Optionally, the apparatus may be applied to the second base station in the embodiment of the present application, and the apparatus may implement the corresponding processes implemented by the second base station in each method of the embodiment of the present application, which is not repeated here for brevity.

Optionally, the device mentioned in the embodiment of the present application may also be a chip. For example, it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.

FIG. 12 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 12 , the communication system 900 includes a first base station 910 and a second base station 920 .

Wherein, the first base station 910 can be used to implement the corresponding function implemented by the first base station in the above method, and the second base station 920 can be used to implement the corresponding function implemented by the second base station in the above method. For brevity, in This will not be repeated here.

It should be understood that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should be understood that the above-mentioned memory is an example but not a limitative description. For example, the memory in this embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium can be applied to the first base station in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first base station in each method of the embodiments of the present application. For brevity, It is not repeated here.

Optionally, the computer-readable storage medium can be applied to the second base station in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the second base station in the various methods of the embodiments of the present application. For brevity, It is not repeated here.

Embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the first base station in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the first base station in each method of the embodiments of the present application. This will not be repeated here.

Optionally, the computer program product can be applied to the second base station in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the second base station in the various methods of the embodiments of the present application. This will not be repeated here.

The embodiments of the present application also provide a computer program.

Optionally, the computer program can be applied to the first base station in the embodiment of the present application, and when the computer program is run on the computer, the computer executes the corresponding processes implemented by the first base station in each method of the embodiment of the present application, For brevity, details are not repeated here.

Optionally, the computer program can be applied to the second base station in the embodiment of the present application, and when the computer program is run on the computer, the computer executes the corresponding processes implemented by the second base station in each method of the embodiment of the present application, For brevity, details are not repeated here.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. For such understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

An interference avoidance method, comprising:

The first base station avoids interference with the second base station by coordinating time-frequency resources with the second base station;

Wherein, the first base station is used to communicate with the flight terminal, and the second base station is a public land mobile network PLMN base station; or, the first base station is a PLMN base station, and the second base station is used to communicate with the flight terminal terminal to communicate.
The method of claim 1, wherein the first base station avoids interference with the second base station by coordinating time-frequency resources with the second base station, comprising:

In the case that the priority of the service corresponding to the first base station is higher than the priority of the service corresponding to the second base station, the first base station sends the first information to the second base station;

Wherein, the first information is used to instruct the second base station to remain silent for a first time period, or the first information is used to indicate that the first base station occupies resources in the first time period.
The method of claim 2, wherein the first duration is determined according to at least one of the following:

The duration of the service corresponding to the first base station, and the dwell duration of a device that communicates with the first base station in a cell served by the first base station.
The method of claim 2 or 3, wherein the method further comprises:

The first base station receives second information sent by the second base station, where the second information is used to request time information for allowing communication.
The method of claim 1, wherein the first base station avoids interference with the second base station by coordinating time-frequency resources with the second base station, comprising:

When the priority of the service corresponding to the first base station is lower than the priority of the service corresponding to the second base station, the first base station receives the third information sent by the second base station; Three pieces of information are used to instruct the first base station to remain silent for the second time period, or the third information is used to indicate that the second base station occupies resources in the second time period;

The first base station keeps silent for the second time period according to the third information.
The method of claim 5, wherein the second duration is determined according to at least one of the following:

The duration of the service corresponding to the second base station, and the dwell duration of the device communicating with the second base station in the cell served by the second base station.
The method of claim 5 or 6, wherein the method further comprises:

The first base station sends fourth information to the second base station, where the fourth information is used to request time information for allowing communication.
The method of claim 1, wherein the first base station avoids interference with the second base station by coordinating time-frequency resources with the second base station, comprising:

sending, by the first base station, request information to the second base station before communication, where the request information is used to request time-frequency resources;

The first base station receives response information sent by the second base station, where the response information includes time-frequency resources available to the first base station, wherein the second base station keeps silent on the available time-frequency resources .
The method of claim 1, wherein the first base station avoids interference with the second base station by coordinating time-frequency resources with the second base station, comprising:

The first base station monitors the time-frequency resource usage of the second base station before communication, and the first base station communicates using time-frequency resources not occupied by the second base station.
An interference avoidance method, comprising:

The first base station sends the first information to the second base station according to the interference information fed back by the flight terminal;

The first information includes the time-frequency resources occupied by the communication service of the flight terminal, and the first information is used to instruct the second base station to reduce the transmit power on the time-frequency resources, or the The first information is used to indicate that the second base station is not allowed to use the time-frequency resource; the first base station is used to communicate with the flight terminal, and the second base station is a public land mobile network PLMN base station.
The method according to claim 10, wherein the first information carries indication information, wherein the indication information is used to instruct that the transmission signal of the second base station is to the first base station and the flight terminal. Communication between them caused interference.
The method according to claim 10 or 11, wherein the first base station sends the first information to the second base station according to the interference information fed back by the flight terminal, comprising:

The first base station periodically sends the first information to the second base station according to the interference information fed back by the flight terminal.
The method according to claim 10 or 11, wherein the first base station sends the first information to the second base station according to the interference information fed back by the flight terminal, comprising:

When the interference value corresponding to the interference information fed back by the flying terminal is greater than the first threshold, the first base station sends the first information to the second base station.
The method according to any one of claims 10 to 13, wherein the flying terminal periodically measures and feeds back the interference information to the first base station.
The method according to any one of claims 10 to 13, wherein the flying terminal feeds back the interference information to the first base station when the measured interference value is greater than a second threshold.
The method according to any one of claims 10 to 15, wherein the interference information includes a signal-to-interference-noise ratio (SINR).
An interference avoidance method, comprising:

The second base station receives the first information sent by the first base station according to the interference information fed back by the flight terminal;

The first information includes the time-frequency resources occupied by the communication service of the flight terminal, and the first information is used to instruct the second base station to reduce the transmit power on the time-frequency resources, or the The first information is used to indicate that the second base station is not allowed to use the time-frequency resource; the first base station is used to communicate with the flight terminal, and the second base station is a public land mobile network PLMN base station.
The method according to claim 17, wherein the first information carries indication information, wherein the indication information is used to indicate that the transmission signal of the second base station is not effective for the first base station and the flight terminal. Communication between them caused interference.
The method of claim 17 or 18, wherein the method further comprises:

The second base station reduces the transmit power on the time-frequency resource according to the first information; or,

The second base station does not use the time-frequency resource according to the first information.
The method according to any one of claims 17 to 19, wherein the flying terminal periodically measures and feeds back the interference information to the first base station.
The method according to any one of claims 17 to 19, wherein the flying terminal feeds back the interference information to the first base station when the measured interference value is greater than a second threshold.
The method according to any one of claims 17 to 21, wherein the interference information comprises a signal-to-interference-noise ratio (SINR).
A base station, comprising:

a processing unit, configured to avoid interference with the second base station by coordinating time-frequency resources with the second base station;

Wherein, the first base station is used to communicate with the flight terminal, and the second base station is a public land mobile network PLMN base station; or, the first base station is a PLMN base station, and the second base station is used to communicate with the flight terminal terminal to communicate.
The base station of claim 23, wherein the base station further comprises: a communication unit,

When the priority of the service corresponding to the first base station is higher than the priority of the service corresponding to the second base station, the communication unit is configured to send the first information to the second base station;

Wherein, the first information is used to instruct the second base station to remain silent for a first time period, or the first information is used to indicate that the first base station occupies resources in the first time period.
The base station of claim 24, wherein the first duration is determined according to at least one of the following:

The duration of the service corresponding to the first base station, and the dwell duration of a device that communicates with the first base station in a cell served by the first base station.
The base station according to claim 24 or 25, wherein the base station further comprises: a communication unit,

The communication unit is configured to receive second information sent by the second base station, where the second information is used to request time information for allowing communication.
The base station according to claim 23, wherein the base station further comprises: a communication unit,

When the priority of the service corresponding to the first base station is lower than the priority of the service corresponding to the second base station, the communication unit is configured to receive third information sent by the second base station; wherein the The third information is used to instruct the first base station to remain silent for the second time period, or the third information is used to indicate that the second base station occupies resources in the second time period;

The processing unit is configured to remain silent for the second time period according to the third information.
The base station of claim 27, wherein the second duration is determined according to at least one of the following:

The duration of the service corresponding to the second base station, and the dwell duration of the device communicating with the second base station in the cell served by the second base station.
The base station according to claim 27 or 28, wherein the base station further comprises: a communication unit,

The communication unit is configured to send fourth information to the second base station, where the fourth information is used to request time information for allowing communication.
The base station of claim 23, wherein the base station further comprises: a communication unit,

The communication unit is configured to send request information to the second base station before communication, where the request information is used to request time-frequency resources;

The communication unit is configured to receive response information sent by the second base station, where the response information includes available time-frequency resources of the first base station, wherein the second base station maintains the available time-frequency resources on the available time-frequency resources silent.
The base station according to claim 23, wherein the base station further comprises: a communication unit,

The communication unit is configured to monitor the time-frequency resource usage of the second base station before communication, and the communication unit is configured to perform communication by using the time-frequency resource that is not occupied by the second base station.
A base station, comprising:

a communication unit, configured to send the first information to the second base station according to the interference information fed back by the flight terminal;

The first information includes the time-frequency resources occupied by the communication service of the flight terminal, and the first information is used to instruct the second base station to reduce the transmit power on the time-frequency resources, or the The first information is used to indicate that the second base station is not allowed to use the time-frequency resource; the first base station is used to communicate with the flight terminal, and the second base station is a public land mobile network PLMN base station.
The base station according to claim 32, wherein the first information carries indication information, wherein the indication information is used to instruct that the transmission signal of the second base station is to the first base station and the flight terminal Communication between them caused interference.
The base station according to claim 32 or 33, wherein the communication unit is specifically used for:

The first information is periodically sent to the second base station according to the interference information fed back by the flight terminal.
The base station according to claim 32 or 33, wherein the communication unit is specifically used for:

When the interference value corresponding to the interference information fed back by the flying terminal is greater than the first threshold, the first information is sent to the second base station.
The base station according to any one of claims 32 to 35, wherein the flying terminal periodically measures and feeds back the interference information to the first base station.
The base station according to any one of claims 32 to 35, wherein the flying terminal feeds back the interference information to the first base station when the measured interference value is greater than a second threshold.
The base station according to any one of claims 32 to 37, wherein the interference information includes a signal-to-interference-noise ratio (SINR).
A base station, comprising:

a communication unit, configured to receive the first information sent by the first base station according to the interference information fed back by the flight terminal;

The first information includes the time-frequency resources occupied by the communication service of the flight terminal, and the first information is used to instruct the second base station to reduce the transmit power on the time-frequency resources, or the The first information is used to indicate that the second base station is not allowed to use the time-frequency resource; the first base station is used to communicate with the flight terminal, and the second base station is a public land mobile network PLMN base station.
The base station according to claim 39, wherein the first information carries indication information, wherein the indication information is used to indicate that the transmission signal of the second base station is not suitable for the first base station and the flight terminal. Communication between them caused interference.
The base station according to claim 39 or 40, wherein the base station further comprises: a processing unit,

The processing unit is configured to reduce the transmit power on the time-frequency resource according to the first information; or,

The processing unit is configured to not use the time-frequency resource according to the first information.
The base station according to any one of claims 39 to 41, wherein the flying terminal periodically measures and feeds back the interference information to the first base station.
The base station according to any one of claims 39 to 41, wherein the flying terminal feeds back the interference information to the first base station when the measured interference value is greater than a second threshold.
The base station according to any one of claims 39 to 43, wherein the interference information includes a signal-to-interference-noise ratio (SINR).
A base station, characterized in that it comprises: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 1 to 9. Item 10, or performing a method as claimed in any one of claims 10 to 16, performing a method as claimed in any one of claims 17 to 22.
A chip, characterized by comprising: a processor for invoking and running a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 9, or executes A method as claimed in any one of claims 10 to 16, performing a method as claimed in any one of claims 17 to 22.
A computer-readable storage medium, characterized in that it is used for storing a computer program, and the computer program causes a computer to execute the method according to any one of claims 1 to 9, or to execute the method according to any one of claims 10 to 16. A method as claimed in any one of claims 17 to 22.
A computer program product, characterized in that it comprises computer program instructions that cause a computer to perform the method as claimed in any one of claims 1 to 9, or to perform the method as claimed in any one of claims 10 to 16 The method described in any one of claims 17 to 22 is performed.
A computer program, characterized in that the computer program causes a computer to execute the method according to any one of claims 1 to 9, or to execute the method according to any one of claims 10 to 16, and to execute the method according to any one of claims 10 to 16. The method of any one of claims 17 to 22.