WO2022126640A1 - Procédé d'évitement d'interférences et station de base - Google Patents

Procédé d'évitement d'interférences et station de base Download PDF

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Publication number
WO2022126640A1
WO2022126640A1 PCT/CN2020/137735 CN2020137735W WO2022126640A1 WO 2022126640 A1 WO2022126640 A1 WO 2022126640A1 CN 2020137735 W CN2020137735 W CN 2020137735W WO 2022126640 A1 WO2022126640 A1 WO 2022126640A1
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WO
WIPO (PCT)
Prior art keywords
base station
information
interference
time
terminal
Prior art date
Application number
PCT/CN2020/137735
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English (en)
Chinese (zh)
Inventor
邢金强
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202080105900.6A priority Critical patent/CN116326116A/zh
Priority to PCT/CN2020/137735 priority patent/WO2022126640A1/fr
Publication of WO2022126640A1 publication Critical patent/WO2022126640A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the embodiments of the present application relate to the field of communications, and more particularly, to an interference avoidance method and a base station.
  • 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.
  • an interference avoidance method including:
  • the first base station avoids interference with the second base station by coordinating time-frequency resources with the second base station;
  • the first base station is used to communicate with the flight terminal
  • the second base station is a PLMN base station
  • the first base station is a PLMN base station
  • the second base station is used to communicate with the flight terminal.
  • an interference avoidance method 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.
  • an interference avoidance method 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;
  • 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.
  • a base station is provided for executing the method in the above-mentioned first aspect.
  • the base station includes functional modules for executing the method in the above-mentioned first aspect.
  • a base station is provided for executing the method in the second aspect.
  • the base station includes functional modules for executing the method in the second aspect above.
  • a base station is provided for performing the method in the third aspect.
  • the base station includes functional modules for executing the method in the above third aspect.
  • a base station including 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 to execute the method in the first aspect.
  • a base station including 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 to execute the method in the second aspect.
  • a base station including 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 to execute the method in the third aspect.
  • an apparatus for implementing the method in any one of the above-mentioned first to third aspects.
  • 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.
  • a computer-readable storage medium 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.
  • the first base station avoids interference with the second base station by coordinating time-frequency resources with the second base station.
  • 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.
  • 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.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • CDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • WiFi fifth-generation communication
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • 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.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • 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.
  • 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.
  • UE user equipment
  • 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.
  • PLMN Public Land Mobile Network
  • 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).
  • 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.
  • a mobile phone Mobile Phone
  • a tablet computer Pad
  • a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
  • 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.
  • 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.
  • 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.
  • 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.
  • the base station may have a mobile characteristic, for example, the base station may be a mobile device.
  • the base station can be a satellite or a balloon station.
  • 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.
  • the network device may also be a base station set in a location such as land or water.
  • 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.
  • 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.
  • 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.
  • 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.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • 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.
  • the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
  • 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.
  • 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.
  • 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.
  • predefined may refer to the definition in the protocol.
  • 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.
  • the base stations used to communicate with the aircraft need to have high transmit power to achieve a sufficiently large air cell coverage radius.
  • the actual use efficiency of the ground base station is relatively low.
  • 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.
  • 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).
  • a PLMN base station eg gNB
  • 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:
  • 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.
  • 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.
  • the first base station is used to communicate with the flight terminal, and the second base station is a PLMN base station.
  • 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.
  • 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.
  • the foregoing S210 may specifically be:
  • the first 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 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.
  • 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.
  • 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 is not limited.
  • the first base station is used to communicate with the flight terminal, and the second base station is a PLMN base station.
  • the communication service between the flight terminal and the first base station has a higher priority.
  • 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.
  • the first base station will remain in an open state.
  • 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.
  • the second base station eg gNB
  • the first base station is a PLMN base station, and the second base station is used to communicate with the flight terminal.
  • the communication service between the ground terminal and the first base station has a higher priority.
  • 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.
  • the first base station will remain in an open state.
  • 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).
  • 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.
  • 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 first base station is a PLMN base station (gNB), and the second base station is used to communicate with the flight terminal.
  • the first base station has a higher priority communication service
  • 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.
  • the foregoing S210 may specifically be:
  • 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.
  • 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 is not limited.
  • the first base station is a PLMN base station and the second base station is used to communicate with the flight terminal.
  • the communication service between the flight terminal and the second base station has a higher priority.
  • 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.
  • the second base station will remain in an open state.
  • 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.
  • the first base station eg gNB
  • the first base station is used to communicate with the flight terminal, and the second base station is a PLMN base station.
  • the communication service between the ground terminal and the second base station has a higher priority.
  • 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.
  • the second base station will remain in an open state.
  • 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).
  • 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.
  • the first base station 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.
  • 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.
  • 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
  • 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.
  • 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.
  • the above-mentioned “silence” may refer to standby, that is, no service transmission is performed.
  • 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.
  • 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.
  • 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:
  • 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;
  • 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 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.
  • 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.
  • 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.
  • 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 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.
  • 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.
  • the period at which the first base station sends the interference information may be configured by the second base station.
  • 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 .
  • 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.
  • the flying terminal periodically measures and feeds back the interference information to the first base station.
  • 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.
  • the flying terminal feeds back the interference information to the first base station when the measured interference value is greater than the second threshold.
  • 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.
  • the interference information includes a signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR).
  • SINR Signal to Interference plus Noise Ratio
  • the interference information may also include other types of interference, which is not limited in this application.
  • 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) .
  • the flying terminal 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.
  • 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.
  • FIG. 7 shows a schematic block diagram of a base station 400 according to an embodiment of the present application.
  • 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;
  • the first base station is used to communicate with the flight terminal
  • 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.
  • the base station 400 further includes: a communication unit 420,
  • the communication unit 420 is configured to send the first information to the second base station;
  • 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.
  • 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 is not limited.
  • 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.
  • the base station 400 further includes: a communication unit 420,
  • 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.
  • 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 is not limited.
  • 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.
  • 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.
  • 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.
  • 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.
  • the base station 400 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 .
  • 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.
  • 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.
  • 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.
  • 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.
  • the communication unit 510 is specifically used for:
  • the first information is sent to the second base station.
  • the flying terminal periodically measures and feeds back the interference information to the first base station.
  • the flying terminal feeds back the interference information to the first base station when the measured interference value is greater than the second threshold.
  • the interference information includes a signal-to-interference-noise ratio SINR.
  • 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.
  • the base station 500 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 .
  • 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.
  • 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;
  • 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.
  • 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.
  • 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.
  • the flying terminal periodically measures and feeds back the interference information to the first base station.
  • the flying terminal feeds back the interference information to the first base station when the measured interference value is greater than the second threshold.
  • the interference information includes a signal-to-interference-noise ratio SINR.
  • 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.
  • the base station 600 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 .
  • 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.
  • 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 .
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 .
  • 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.
  • 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.
  • 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.
  • 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.
  • the device mentioned in the embodiment of the present application may also be a chip.
  • 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 .
  • the first base station 910 can be used to implement the corresponding function implemented by the first base station in the above method
  • the second base station 920 can be used to implement the corresponding function implemented by the second base station in the above method.
  • the first base station 910 can be used to implement the corresponding function implemented by the first base station in the above method
  • the second base station 920 can be used to implement the corresponding function implemented by the second base station in the above method.
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • 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.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • 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.
  • 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.
  • 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.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • 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.
  • 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.
  • 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.
  • 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.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • 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.
  • 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.
  • 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 .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente demande fournissent un procédé d'évitement d'interférences et une station de base, qui peuvent réduire des interférences radioélectriques entre une station de base terrestre pour communiquer avec un terminal de vol et une station de base de réseau PLMN.Le procédé d'évitement d'interférences comprend les étapes suivantes : une première station de base évite des interférences avec une seconde station de base en coordonnant une ressource temps-fréquence avec la seconde station de base, la première station de base étant utilisée pour communiquer avec un terminal de vol et la seconde station de base étant une station de base de réseau PLMN ; ou la première station de base étant une station de base de réseau PLMN et la seconde station de base étant utilisée pour communiquer avec le terminal de vol.
PCT/CN2020/137735 2020-12-18 2020-12-18 Procédé d'évitement d'interférences et station de base WO2022126640A1 (fr)

Priority Applications (2)

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CN202080105900.6A CN116326116A (zh) 2020-12-18 2020-12-18 干扰规避方法和基站
PCT/CN2020/137735 WO2022126640A1 (fr) 2020-12-18 2020-12-18 Procédé d'évitement d'interférences et station de base

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102938670A (zh) * 2011-08-15 2013-02-20 北京为邦远航无线技术有限公司 用于飞机的地空宽带无线通信系统及方法
CN103297980A (zh) * 2012-03-01 2013-09-11 华为技术有限公司 干扰协调的方法和装置
CN103369539A (zh) * 2012-04-06 2013-10-23 华为技术有限公司 干扰协调的方法和装置
CN103634806A (zh) * 2013-12-09 2014-03-12 中国联合网络通信集团有限公司 一种干扰规避方法及设备
CN104053197A (zh) * 2013-03-15 2014-09-17 中国移动通信集团公司 地空长期演进系统中飞机器的切换方法、基站及飞行器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102938670A (zh) * 2011-08-15 2013-02-20 北京为邦远航无线技术有限公司 用于飞机的地空宽带无线通信系统及方法
CN103297980A (zh) * 2012-03-01 2013-09-11 华为技术有限公司 干扰协调的方法和装置
CN103369539A (zh) * 2012-04-06 2013-10-23 华为技术有限公司 干扰协调的方法和装置
CN104053197A (zh) * 2013-03-15 2014-09-17 中国移动通信集团公司 地空长期演进系统中飞机器的切换方法、基站及飞行器
CN103634806A (zh) * 2013-12-09 2014-03-12 中国联合网络通信集团有限公司 一种干扰规避方法及设备

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