CN116326116A

CN116326116A - Interference avoidance method and base station

Info

Publication number: CN116326116A
Application number: CN202080105900.6A
Authority: CN
Inventors: 邢金强
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2023-06-23
Also published as: WO2022126640A1

Abstract

The embodiment of the application provides an interference avoidance method and a base station, which can reduce radio interference between a ground base station for communication with flight and a PLMN base station. The interference avoidance method includes: the first base station avoids interference with the second base station through coordinating time-frequency resources with the second base station; the first base station is used for communicating with the flying terminal, and the second base station is a PLMN base station; alternatively, the first base station is a PLMN base station, and the second base station is configured to communicate with the flying terminal.

Description

Interference avoidance method and base station

Technical Field

The embodiment of the application relates to the field of communication, and more particularly, to an interference avoidance method and a base station.

Background

It is well known that it is currently difficult to make a communication service such as making a call or surfing the internet on board an aircraft because there is no network coverage in the air as on the ground. One implementation is aircraft communication based on ground base stations, and continuous coverage is realized through different ground base stations on an aircraft route, so that the aircraft can always have network connection service. However, the flying height of the aircraft is higher than 1 m, and continuous coverage is ensured within an economically acceptable range, so that the coverage area of a single base station is large enough, i.e. the distance between ground base stations is large, which results in high transmitting power of the ground base stations, and thus may cause serious radio interference between the ground base stations and public land mobile network (Public Land Mobile Network, PLMN) base stations. How to avoid radio interference between a ground base station for communication with a flight and a PLMN base station is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides an interference avoidance method and a base station, which can reduce radio interference between a ground base station for communication with 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 through coordinating time-frequency resources with the second base station;

the first base station is used for communicating with the flying terminal, and the second base station is a PLMN base station; alternatively, the first base station is a PLMN base station, and the second base station is configured to communicate with the flying terminal.

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

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

the first information includes a time-frequency resource occupied by the communication service of the flying terminal, and the first information is used for indicating the second base station to reduce the transmitting power on the time-frequency resource, or the first information is used for indicating that the second base station is not allowed to use the time-frequency resource; the first base station is used for communicating with the flying 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 first information sent by the first base station according to interference information fed back by the flight terminal;

In a fourth aspect, a base station is provided for performing the method in the first aspect.

Specifically, the base station comprises functional modules for performing the method in the first aspect described above.

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

Specifically, the base station comprises functional modules for performing the method in the second aspect described above.

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

Specifically, the base station comprises functional modules for performing the method in the third aspect described above.

In a seventh aspect, a base station is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method in the first aspect.

In an eighth aspect, a base station is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the second aspect described above.

In a ninth aspect, a base station is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the third aspect described above.

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

Specifically, the device comprises: a processor for calling and running a computer program from a memory, causing a device in which the apparatus is installed to perform the method of any of the first to third aspects as described above.

In an eleventh aspect, a computer-readable storage medium is provided for storing a computer program that causes a computer to execute the method of any one of the above first to third aspects.

In a twelfth aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the first to third aspects above.

In a thirteenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the first to third aspects described above.

By the technical scheme 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 solution of the second aspect or the third aspect, the first base station instructs the second base station to reduce the transmitting power on the time-frequency resource occupied by the flying terminal based on the interference information fed back by the flying terminal, or instructs the second base station not to use the time-frequency resource occupied by the flying terminal based on the interference information fed back by the flying terminal, thereby avoiding the interference between the first base station and the second base station.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture to which embodiments of the present application apply.

Fig. 2 is a schematic diagram of an aircraft communication provided herein.

Fig. 3 is a schematic diagram of interference between a ground base station and a gNB provided in 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 flow chart 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 provided according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of another base station provided in accordance with an embodiment of the present application.

Fig. 9 is a schematic block diagram of yet another base station provided in accordance with 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 Description

The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden for the embodiments herein, are intended to be within the scope of the present application.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, long term evolution advanced (Advanced long term evolution, LTE-a) system, new Radio, NR system evolution system, LTE over unlicensed spectrum (LTE-based access to unlicensed spectrum, LTE-U) system, NR over unlicensed spectrum (NR-based access to unlicensed spectrum, NR-U) system, non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, universal mobile telecommunication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, wiFi), fifth Generation communication (5 th-Generation, 5G) system, or other communication system, etc.

Generally, the number of connections supported by the conventional communication system is limited and easy to implement, however, with the development of communication technology, the mobile communication system will support not only conventional communication but also, for example, device-to-Device (D2D) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), inter-vehicle (Vehicle to Vehicle, V2V) communication, or internet of vehicles (Vehicle to everything, V2X) communication, etc., and the embodiments of the present application may also be applied to these communication systems.

Optionally, the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, and a Stand Alone (SA) fabric scenario.

Optionally, the communication system in the embodiments of the present application may be applied to unlicensed spectrum, where unlicensed spectrum may also be considered as shared spectrum; alternatively, the communication system in the embodiments of the present application may also be applied to licensed spectrum, where licensed spectrum may also be considered as non-shared spectrum.

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

The terminal device may be a STATION (ST) in a WLAN, may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) STATION, a personal digital assistant (Personal Digital Assistant, PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a terminal device in a next generation communication system such as an NR network, or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In embodiments of the present application, the terminal device may be deployed on land, including indoor or outdoor, hand-held, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.).

In the embodiment of the present application, the terminal device may be a Mobile Phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented Reality (Augmented Reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned driving (self driving), a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), or a wireless terminal device in smart home (smart home), and the like.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various 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 a mobile device, and the base station may be an Access Point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, a relay station or an Access Point, a vehicle device, a wearable device, a network device or a base station (gNB) in an NR network, a base station in a future evolved PLMN network, or a base station in an NTN network, or the like.

By way of example and not limitation, in embodiments of the present application, a base station may have mobile characteristics, e.g., the base station may be a mobile device. Alternatively, the base station may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite, or the like. Alternatively, the network device may be a base station disposed on land, in a water area, or the like.

In this embodiment of the present application, a base station may provide a service for a cell, where a terminal device communicates with the base station through a transmission resource (for example, a frequency domain resource, or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the base station, and the cell may belong to a macro base station, or may belong to a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

Exemplary, a communication system 100 to which embodiments of the present application apply 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, terminal). 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 illustrates one base station and two terminal devices by way of example, and alternatively, the communication system 100 may include multiple base stations and each base station may include other numbers of terminal devices within its coverage area, which is not limited in this embodiment.

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

It should be understood that a device having a communication function in a network/system in an embodiment of the present application 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 communication functions, where the base station 110 and the terminal device 120 may be specific devices described above, and are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The terminology used in the description section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application. The terms "first," "second," "third," and "fourth" and the like in the description and in the claims of this application and in the drawings, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

It should be understood that, in the embodiments of the present application, the "indication" may be a direct indication, an indirect indication, or an indication having an association relationship. For example, a indicates B, which may mean that a indicates B directly, e.g., B may be obtained by a; it may also indicate that a indicates B indirectly, e.g. a indicates C, B may be obtained by C; it may also be indicated that there is an association between a and B.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct correspondence or an indirect correspondence between the two, or may indicate that there is an association between the two, or may indicate a relationship between the two and the indicated, configured, or the like.

In the embodiment of the present application, the "predefining" may be implemented by pre-storing corresponding codes, tables or other manners that may be used to indicate relevant information in devices (including, for example, terminal devices and network devices), and the specific implementation of the present application is not limited. Such as predefined may refer to what is defined in the protocol.

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

For a better understanding of embodiments of the present application, ground base station based aircraft communications relevant to the present application are described.

It is well known that it is currently difficult to make a communication service such as making a call or surfing the internet on board an aircraft because there is no network coverage in the air as on the ground. In general, communication is performed by a satellite communication network, but communication cost is very high, and capacity is small, so that popularization is difficult. Aircraft communications based on ground base stations are thus a potential direction.

For example, as shown in fig. 2, continuous coverage is realized through different ground base stations on the route of the aircraft, so that the aircraft can always have network connection service. But this approach also has its problems. In general, the flying height of an aircraft is more than 1 ten thousand meters, and continuous coverage is ensured within an economically acceptable range, so that the coverage area of a single ground base station is large enough, that is, the distance between the ground base stations is large, which leads to high transmitting power of the ground base stations, and serious radio interference may be caused. The most severe case of such radio interference occurs when the spectrum used by the ground base station overlaps or neighbors the spectrum of the PLMN base station (e.g., gNB), as shown in fig. 3. Such as misavoidance of disturbance, would cause serious performance losses and even aircraft hazards.

Furthermore, the base stations used to communicate with the aircraft need to have a high transmit power to achieve a sufficiently large air cell coverage radius. Meanwhile, due to the limited number of aeroplanes and scattered aircraft passing time, the actual use efficiency of the ground base station is low. In order to improve the utilization ratio of spectrum resources, operators often deploy the same spectrum (such as 100MHz bandwidth of n79 frequency band) or adjacent spectrum to the ground base station and the PLMN base station (such as gNB), which actually causes co-channel interference or adjacent channel interference.

Based on the above-mentioned problems, the present application proposes an interference avoidance scheme that can reduce mutual interference between a ground base station and a PLMN base station (e.g. gNB).

The technical scheme of the present application is described in detail below through specific embodiments.

Fig. 4 is a schematic flow chart 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 some of the following:

s210, the first base station coordinates time-frequency resources with the second base station to avoid interference with the second base station; the first base station is used for communicating with the flying terminal, and the second base station is a PLMN base station; alternatively, the first base station is a PLMN base station, and the second base station is configured to communicate with the flying terminal.

In the embodiment of the application, the time-frequency resources are coordinated between the first base station and the second base station, so that the first base station and the second base station can be prevented from using the same frequency domain resources at the same time, or the first base station and the second base station can be prevented from occupying the same time-frequency resources, and 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 flying terminal, and the second base station is a PLMN base station, where the first base station may be a ground base station for communicating with the flying as described in fig. 2 and 3, and the transmission power of the first base station is usually very high, and the first base station may be some base stations specifically used to communicate with the flying terminal, or some other base stations may be multiplexed, which is not limited in this application; the second base station is a PLMN base station, e.g., eNB, gNB, etc.

In some embodiments, the flying terminal may be a device with flying capability, such as an airplane, an unmanned plane, a fire balloon, a flying car, etc., and 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 with flying capability, which the embodiments of the present application are not limited to.

Optionally, in some embodiments, S210 may specifically be:

under the condition that the priority of the service corresponding to the first base station is higher than that of the service corresponding to the second base station, the first base station sends first information to the second base station; the first information is used for indicating that the second base station keeps silent in a first duration, or the first information is used for indicating that the first base station occupies resources in the first duration.

That is, after receiving the first information, the second base station may learn that the first base station needs the second base station to keep silent in the first duration, or may learn that the first base station occupies the resources in the first duration. Further, the second base station remains silent for the first duration based on the first information.

Optionally, the first time period is determined according to at least one of:

and the duration of the service corresponding to the first base station, and the residence duration of the equipment communicated with the first base station in the cell served by the first base station.

For example, assume that a first base station is used for communication with the flying terminal and that a second base station is a PLMN base station, in which case the communication traffic of the flying terminal with the first base station has a higher priority. When the flying terminal is about to enter the air cell where the first base station is located, the first base station acquires information such as the flying path and the speed of the flying terminal, and therefore time information that the flying terminal enters and leaves the air cell is obtained. The first base station will remain in an on state during the period corresponding to this time information (i.e., the first duration). In addition, the first base station informs the second base station (such as the gNB) in the adjacent area of the time period (i.e., the first duration) corresponding to the time information. And after receiving the information, the second base station switches the ground terminal in the cell to other frequency points for working. Therefore, the second base station keeps silent in the air communication frequency point to avoid interference on communication between the first base station and the flight terminal.

For another example, assume that the first base station is a PLMN base station and the second base station is configured to communicate with a flying terminal, in which case the ground terminal has a higher priority for communication traffic with the first base station. Then, when the ground terminal is about to enter the cell where the first base station is located, the first base station can acquire the time information that the ground terminal enters and leaves the cell where the first base station is located. The first base station will remain in an on state during the period corresponding to this time information (i.e., the first duration). In addition, the first base station informs the second base station (such as a ground base station) in the adjacent area of the time period (i.e., the first time period) corresponding to the time information. And after receiving the information, the second base station switches the flight terminal in the cell to other frequency points for working. Therefore, the second base station keeps silent on the communication frequency point of the first base station to avoid interference on 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, assume that the first base station is a PLMN base station (gNB) and the second base station is configured to communicate with the flying terminal, in which case, when the first base station has higher priority communication service, such as the first base station receives the transmission time request information from the second base station, the first base station needs to notify the second base station of its occupation time information, so that the second base station is turned on and communicates during a time that the first base station does not occupy.

Optionally, in some embodiments, S210 may specifically be:

under the condition that the priority of the service corresponding to the first base station is lower than that of the service corresponding to the second base station, the first base station receives the second base station and sends third information; the third information is used for indicating that the first base station keeps silent in a second time period, or the third information is used for indicating that the second base station occupies resources in the second time period;

the first base station keeps silent for the second duration according to the third information.

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

and the duration of the service corresponding to the second base station, and the residence duration of the equipment communicated with the second base station in the cell served by the second base station.

For example, suppose that the first base station is a PLMN base station and the second base station is for communicating with a flying terminal, in which case the communication traffic of the flying terminal with the second base station has a higher priority. And then, when the flying terminal is about to enter the air cell where the second base station is located, the second base station acquires information such as the flying path and the speed of the flying terminal, so that the time information of the flying terminal entering and leaving the air cell is obtained. The second base station will remain in the on state for the period of time corresponding to this time information (i.e., the second duration). In addition, the second base station informs the first base station (such as the gNB) in the adjacent area of the time period (i.e., the second duration) corresponding to the time information. And after receiving the information, the first base station switches the ground terminal in the cell to other frequency points for working. Therefore, the first base station keeps silent in the air communication frequency point to avoid interference on communication between the second base station and the flight terminal.

For another example, assume that the first base station is for communication with a flight terminal and the second base station is a PLMN base station, in which case the communication traffic of the ground terminal with the second base station has a higher priority. Then, when the ground terminal is about to enter the cell where the second base station is located, the second base station can acquire the time information that the ground terminal enters and leaves the cell where the second base station is located. The second base station will remain in the on state for the period of time corresponding to this time information (i.e., the second duration). In addition, the second base station informs the first base station (such as a ground base station) in the adjacent area of the time period (i.e., the first duration) corresponding to the time information. And after receiving the information, the first base station switches the flight terminal in the cell to other frequency points for working. Therefore, the communication frequency point of the first base station working at the second base station is kept silent, and interference on communication between the second base station and the ground terminal is avoided.

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, S210 may specifically be:

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

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

For example, assume that a first base station is used for communicating with a flying terminal, and a second base station is a PLMN base station, the first base station requests a part of available time-frequency resources from the second base station (e.g., gNB) before communicating with the flying terminal, and the second base station (e.g., gNB) locks the time-frequency resources during a process that the flying terminal passes through an empty cell where the first base station is located. The second base station (such as gNB) allocates the remaining time-frequency resources to users in the cell for use. Therefore, the time-frequency resources are not overlapped, and interference avoidance is realized.

Optionally, in some embodiments, 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 communicates using the time-frequency resource not occupied by the second base station.

Accordingly, the second base station monitors the time-frequency resource usage of the first base station before communication, and the second base station uses the time-frequency resource which is not occupied by the first base station for communication.

It should be noted that, in the embodiment of the present application, the "silence" may refer to standby, that is, no traffic transmission is performed. For example, the first base station keeping silent at the air communication frequency point may mean that the first base station does not perform service transmission on the air communication frequency point, or that the first base station does not use the air communication frequency point to transmit service. For another example, the second base station keeping silent on the time-frequency resources available to the first base station may mean that the second base station does not perform traffic transmission on the time-frequency resources available to the first base station, or that the second base station does not transmit traffic using the time-frequency resources available to the first base station. Other descriptions of "silence" in the embodiments of the present application are similar and will not be explained here.

Therefore, in the embodiment of the 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 mode in terms of spectrum occupation, so that mutual interference is thoroughly avoided.

Fig. 5 is a schematic flow chart 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 some of the following:

S310, the first base station sends first information to the second base station according to interference information fed back by the flight terminal; the first information includes a time-frequency resource occupied by the communication service of the flying terminal, and the first information is used for indicating the second base station to reduce the transmitting power on the time-frequency resource, or the first information is used for indicating that the second base station is not allowed to use the time-frequency resource; the first base station is used for communicating with the flying terminal, and the second 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 a ground base station for communicating with the flight as described in fig. 2 and 3, where the transmission power of the ground base station is generally high, and the first base station may be some base stations specifically used for communicating with the flight terminal, or some other base stations may be multiplexed, which is not limited in this application; the second base station is a PLMN base station, e.g., eNB, gNB, etc.

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 communication between the first base station and the flying 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, S310 may specifically be: the first base station periodically transmits the first information to the second base station according to the interference information fed back by the flying terminal.

Alternatively, the period of the first base station transmitting the interference information may be determined by negotiation between the first base station and the second base station, or the period of the first base station transmitting the interference information may be pre-configured or agreed, or the period of the first base station transmitting the interference information may be configured by the second base station.

Optionally, in some embodiments, S310 may specifically be: and under the condition that the interference value corresponding to the interference information fed back by the flying terminal is larger than a first threshold value, the first base station sends the first information to the second base station.

Alternatively, the first threshold may be determined by negotiations between the first base station and the second base station, or the first threshold may be pre-configured or agreed upon, or the first threshold may be configured by the second base station.

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

Alternatively, the period of the terminal-to-air measurement interference may be determined by negotiation between the first base station and the terminal-to-air, or the period of the terminal-to-air measurement interference may be pre-configured or agreed, or the period of the terminal-to-air measurement interference may be configured by the first base station.

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

Alternatively, the second threshold may be determined by negotiations between the first base station and the flying terminal, or the second threshold may be pre-configured or agreed upon, or the second threshold may be configured by the first base station.

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, the interference information measurement feedback, the first base station-to-interference estimation, etc. may be periodic (i.e., the first base station estimates the interference situation by measuring the SINR at regular intervals), or event-triggered (i.e., the first base station estimates the interference situation while the first base station estimates the SINR information by feeding back the SINR information to the first base station only when the SINR measurement is below a certain threshold).

For example, as shown in fig. 6, after the terminal enters the air cell, the SINR of the received signal is continuously measured, and the transmission signal of the gNB is actually an interference signal for the terminal. The flight terminal informs the ground base station of the measured SINR, if the SINR exceeds a certain threshold, the ground base station indicates the gNB to transmit signals to cause interference to the communication of the flight terminal, and meanwhile, the ground base station can inform the gNB of the time-frequency resource condition occupied by the communication service of the flight terminal. After receiving the indication, the gNB can choose to reduce the transmitting power of the gNB on the time-frequency resource used by the communication of the flying terminal or avoid using the time-frequency resource.

Therefore, in the embodiment of the application, the first base station instructs the second base station to reduce the transmitting power on the time-frequency resource occupied by the flying terminal based on the interference information fed back by the flying terminal, or the first base station instructs the second base station not to use the time-frequency resource occupied by the flying terminal based on the interference information fed back by the flying terminal, so that the interference between the first base station and the second base station is avoided.

The method embodiments of the present application are described in detail above with reference to fig. 4 to 6, and the apparatus embodiments of the present application are described in detail below with reference to fig. 7 to 12, it being understood that the apparatus embodiments and the method embodiments correspond to each other, and similar descriptions may refer to the method embodiments.

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 a second base station by coordinating time-frequency resources with the second base station;

the first base station is used for communicating with the flying terminal, and the second base station is a Public Land Mobile Network (PLMN) base station; alternatively, the first base station is a PLMN base station, and the second base station is configured to communicate with the flying terminal.

Optionally, the base station 400 further includes: the communication unit 420 is configured to communicate with a communication device,

the communication unit 420 is configured to send first information to the second base station 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 information is used for indicating that the second base station keeps silent in a first duration, or the first information is used for indicating that the first base station occupies resources in the first duration.

Optionally, the first time period is determined according to at least one of:

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.

the communication unit 420 is configured to receive the third information sent by the second base station 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 third information is used for indicating that the first base station keeps silent in a second time period, or the third information is used for indicating that the second base station occupies resources in the second time period;

the processing unit 410 is configured to keep silent for the second duration according to the third information.

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

the communication unit 420 is configured to transmit fourth information to the second base station, the fourth information being used to request time information for allowing communication.

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, and the second base station keeps silent on the available time-frequency resources.

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

Alternatively, in some embodiments, the communication unit may be a communication interface or transceiver, or an input/output interface of a communication chip or a system on a chip. The 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 embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the base station 400 are respectively for implementing the corresponding flow of the first base station in the method 200 shown in fig. 4, and are not repeated herein for brevity.

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

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

the first information includes a time-frequency resource occupied by the communication service of the flying terminal, and the first information is used for indicating the second base station to reduce the transmitting power on the time-frequency resource, or the first information is used for indicating that the second base station is not allowed to use the time-frequency resource; the first base station is used for communicating with the flying terminal, and the second base station is a public land mobile network PLMN base station.

Optionally, the communication unit 510 is specifically configured to:

and periodically sending the first information to the second base station according to the interference information fed back by the flying terminal.

Optionally, the communication unit 510 is specifically configured to:

and sending the first information to the second base station under the condition that the interference value corresponding to the interference information fed back by the flight terminal is larger than a first threshold value.

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

Alternatively, in some embodiments, the communication unit may be a communication interface or transceiver, or an input/output interface of a communication chip or system on a 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 embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the base station 500 are respectively for implementing the corresponding flow of the first base station in the method 300 shown in fig. 5, and are not repeated herein for brevity.

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 first information sent by a first base station according to interference information fed back by a flight terminal;

Optionally, the base station 600 further includes: the processing unit 620 is configured to process the received data,

the processing unit 620 is configured to reduce the transmit power on the time-frequency resource according to the first information; or alternatively, the process may be performed,

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 embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the base station 600 are respectively for implementing the corresponding flow of the second base station in the method 300 shown in fig. 5, and are not repeated herein for brevity.

Fig. 10 is a schematic structural diagram of a communication device 700 provided in an embodiment of the present application. The communication device 700 shown in fig. 10 comprises a processor 710, from which the processor 710 may call and run a computer program to implement the method in the embodiments of the present application.

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

Wherein the memory 720 may be a separate device from the processor 710 or may be integrated into 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, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

Among other things, transceiver 730 may include a transmitter and a receiver. Transceiver 730 may further include antennas, the number of which may be one or more.

Optionally, the communication device 700 may specifically be a first base station in the embodiments of the present application, and the communication device 700 may implement a corresponding flow implemented by the first base station in each method in the embodiments of the present application, which is not described herein for brevity.

Optionally, the communication device 700 may specifically be the second base station in the embodiment of the present application, and the communication device 700 may implement a corresponding flow implemented by the second base station in each method in the embodiment of the present application, which is not described herein for brevity.

Fig. 11 is a schematic structural view of an apparatus of an embodiment of the present application. The apparatus 800 shown in fig. 11 includes a processor 810, and the processor 810 may call and run a computer program from a memory to implement the methods in the embodiments of the present application.

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

Wherein the memory 820 may be a separate device from the processor 810 or may be integrated into the processor 810.

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

Optionally, the apparatus 800 may further comprise an output interface 840. The processor 810 may control the output interface 840 to communicate with other devices or chips, and in particular, 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 a corresponding flow implemented by the first base station in each method in the embodiment of the present application, which is not described herein 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 a corresponding flow implemented by the second base station in each method in the embodiment of the present application, which is not described herein for brevity.

Alternatively, the device mentioned in the embodiments of the present application may also be a chip. For example, a system-on-chip or a system-on-chip, etc.

Fig. 12 is a schematic block diagram of a communication system 900 provided in 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.

The first base station 910 may be configured to implement the corresponding function implemented by the first base station in the above method, and the second base station 920 may be configured to implement the corresponding function implemented by the second base station in the above method, which are not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may 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 programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be Random access memory (Random AccessMemory, RAM), which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memory is exemplary but not limiting, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

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

Optionally, the computer readable storage medium may be applied to the first base station in the embodiments of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the first base station in each method of the embodiments of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to the second base station in the embodiments of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the second base station in each method of the embodiments of the present application, which is not described herein for brevity.

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

Optionally, the computer program product may 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 flow implemented by the first base station in each method of the embodiments of the present application, which is not described herein for brevity.

Optionally, the computer program product may be applied to the second base station in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding flow implemented by the second base station in each method in the embodiment of the present application, which is not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the first base station in the embodiments of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the first base station in each method in the embodiments of the present application, which is not described herein for brevity.

Optionally, the computer program may be applied to the second base station in the embodiments of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the second base station in each method in the embodiments of the present application, which is not described herein for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. For such understanding, the technical solutions of the present application may be embodied in essence or in a part contributing to the prior art or in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

An interference avoidance method, comprising:

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

the first base station is used for communicating with the flying 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 configured to communicate with a flying terminal.
The method of claim 1, wherein the first base station circumvents interference with a second base station by coordinating time-frequency resources with the second base station, comprising:

the first base station sends first information to the second base station under the condition that the priority of the service corresponding to the first base station is higher than that of the service corresponding to the second base station;

The first information is used for indicating that the second base station keeps silent in a first duration, or the first information is used for indicating that the first base station occupies resources in the first duration.
The method of claim 2, wherein the first time period is determined from at least one of:

and the duration of the service corresponding to the first base station, and the residence duration of the equipment communicated with the first base station in the cell served by the first base station.
A method according to claim 2 or 3, wherein the method further comprises:

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

under the condition that the priority of the service corresponding to the first base station is lower than that of the service corresponding to the second base station, the first base station receives the second base station and sends third information; the third information is used for indicating that the first base station keeps silent in a second duration, or the third information is used for indicating that the second base station occupies resources in the second duration;

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

and the duration of the service corresponding to the second base station, and the residence duration of the equipment communicated 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 transmits fourth information to the second base station, the fourth information being used for requesting time information for allowing communication.
The method of claim 1, wherein the first base station circumvents interference with a second base station by coordinating time-frequency resources with the second base station, comprising:

the first base station sends request information to the second base station before communication, wherein the request information is used for requesting time-frequency resources;

the first base station receives response information sent by the second base station, wherein the response information comprises available time-frequency resources of the first base station, and the second base station keeps silent on the available time-frequency resources.
The method of claim 1, wherein the first base station circumvents interference with a second base station by coordinating time-frequency resources with the second base station, comprising:

the first base station monitors the time-frequency resource use condition of the second base station before communication, and the first base station uses the time-frequency resource which is not occupied by the second base station to communicate.
An interference avoidance method, comprising:

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

the first information comprises time-frequency resources occupied by communication services of the flight terminal, and is used for indicating the second base station to reduce the transmitting power on the time-frequency resources, or is used for indicating that the second base station is not allowed to use the time-frequency resources; the first base station is used for communicating with the flying terminal, and the second base station is a Public Land Mobile Network (PLMN) base station.
The method of claim 10, wherein the first information carries indication information, wherein the indication information is used to indicate that a transmitted signal of the second base station causes interference to communications between the first base station and the flying 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 flying terminal, including:

and the first base station periodically transmits the first information to the second base station according to the interference information fed back by the flying 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 flying terminal, including:

and under the condition that the interference value corresponding to the interference information fed back by the flight terminal is larger than a first threshold value, the first base station sends the first information to the second base station.
The method according to any 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 of claims 10 to 13, wherein the flying terminal feeds back the interference information to the first base station if the measured interference value is greater than a second threshold.
The method according to any of claims 10 to 15, wherein the interference information comprises a signal-to-interference-and-noise ratio, SINR.
An interference avoidance method, comprising:

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

the first information comprises time-frequency resources occupied by communication services of the flight terminal, and is used for indicating the second base station to reduce the transmitting power on the time-frequency resources, or is used for indicating that the second base station is not allowed to use the time-frequency resources; the first base station is used for communicating with the flying terminal, and the second base station is a Public Land Mobile Network (PLMN) base station.
The method of claim 17, wherein the first information carries indication information, wherein the indication information is used to indicate that a transmitted signal of the second base station is interfering with communications between the first base station and the flying terminal.
The method of claim 17 or 18, wherein the method further comprises:

the second base station reduces the transmitting power on the time-frequency resource according to the first information; or alternatively, the process may be performed,

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

the processing unit is used for avoiding interference with the second base station by coordinating time-frequency resources with the second base station;

the first base station is used for communicating with the flying 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 configured to communicate with a flying terminal.
The base station of claim 23, wherein the base station further comprises: the communication unit is configured to communicate with the communication unit,

the communication unit is used for sending first information to the second base station under the condition that the priority of the service corresponding to the first base station is higher than that of the service corresponding to the second base station;

The first information is used for indicating that the second base station keeps silent in a first duration, or the first information is used for indicating that the first base station occupies resources in the first duration.
The base station of claim 24, wherein the first time period is determined from at least one of:

and the duration of the service corresponding to the first base station, and the residence duration of the equipment communicated with the first base station in the cell served by the first base station.
The base station of claim 24 or 25, wherein the base station further comprises: the communication unit is configured to communicate with the 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 of claim 23, wherein the base station further comprises: the communication unit is configured to communicate with the communication unit,

the communication unit is used for receiving third information sent by the second base station under the condition that the priority of the service corresponding to the first base station is lower than that of the service corresponding to the second base station; the third information is used for indicating that the first base station keeps silent in a second duration, or the third information is used for indicating that the second base station occupies resources in the second duration;

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

and the duration of the service corresponding to the second base station, and the residence duration of the equipment communicated with the second base station in the cell served by the second base station.
The base station of claim 27 or 28, wherein the base station further comprises: the communication unit is configured to communicate with the 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: the communication unit is configured to communicate with the communication unit,

the communication unit is used for sending request information to the second base station before communication, wherein the request information is used for requesting time-frequency resources;

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

The communication unit is used for monitoring the time-frequency resource use condition of the second base station before communication, and the communication unit is used for communication by using the time-frequency resource which is not occupied by the second base station.
A base station, comprising:

the communication unit is used for sending the first information to the second base station according to the interference information fed back by the flight terminal;

the first information comprises time-frequency resources occupied by communication services of the flight terminal, and is used for indicating the second base station to reduce the transmitting power on the time-frequency resources, or is used for indicating that the second base station is not allowed to use the time-frequency resources; the first base station is used for communicating with the flying terminal, and the second base station is a Public Land Mobile Network (PLMN) base station.
The base station of claim 32, wherein the first information carries indication information, wherein the indication information is used to indicate that a transmitted signal of the second base station causes interference to communications between the first base station and the flying terminal.
The base station according to claim 32 or 33, wherein the communication unit is specifically configured to:

And periodically sending the first information 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 configured to:

and sending the first information to the second base station under the condition that the interference value corresponding to the interference information fed back by the flight terminal is larger than a first threshold value.
The base station according to any 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 of claims 32 to 35, wherein the flying terminal feeds back the interference information to the first base station if the measured interference value is greater than a second threshold.
The base station according to any of the claims 32 to 37, wherein the interference information comprises a signal-to-interference-plus-noise ratio, SINR.
A base station, comprising:

the communication unit is used for receiving first information sent by the first base station according to interference information fed back by the flight terminal;

the first information comprises time-frequency resources occupied by communication services of the flight terminal, and is used for indicating the second base station to reduce the transmitting power on the time-frequency resources, or is used for indicating that the second base station is not allowed to use the time-frequency resources; the first base station is used for communicating with the flying terminal, and the second base station is a Public Land Mobile Network (PLMN) base station.
The base station of claim 39, wherein the first information carries indication information, wherein the indication information is used to indicate that a transmitted signal of the second base station causes interference to communications between the first base station and the flying terminal.
The base station of claim 39 or 40, wherein the base station further comprises: the processing unit is used for processing the processed data,

the processing unit is used for reducing the transmitting power on the time-frequency resource according to the first information; or alternatively, the process may be performed,

the processing unit is configured to not use the time-frequency resource according to the first information.
The base station according to any 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 of claims 39 to 41, wherein the flying terminal feeds back the interference information to the first base station if the measured interference value is greater than a second threshold.
The base station according to any of the claims 39 to 43, characterized in that the interference information comprises a signal to interference plus noise ratio, SINR.
A base station, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory, to perform the method according to any of claims 1 to 9, or to perform the method according to any of claims 10 to 16, to perform the method according to any of claims 17 to 22.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 9 or to perform the method of any one of claims 10 to 16, performing the method of any one of claims 17 to 22.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 9 or to perform the method of any one of claims 10 to 16, to perform the method of any one of claims 17 to 22.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 9 or to perform the method of any one of claims 10 to 16, to perform the method of any one of claims 17 to 22.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 9 or to perform the method according to any one of claims 10 to 16, to perform the method according to any one of claims 17 to 22.