WO2022183477A1 - 干扰处理方法及装置、通信设备和存储介质 - Google Patents
干扰处理方法及装置、通信设备和存储介质 Download PDFInfo
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- H04B7/00—Radio transmission systems, i.e. using radiation field
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- the embodiments of the present disclosure relate to the field of wireless communication, but are not limited to the field of wireless communication, and in particular, relate to an interference processing method and apparatus, a communication device, and a storage medium.
- Satellite communication refers to the communication carried out by ground radio communication equipment using satellites as relays.
- the satellite communication system consists of satellite part and ground part. Satellite communication has the advantages of large communication range and not easy to be affected by land disasters.
- link interference is often prone to exist between satellite communication systems and terrestrial communication systems (such as 5G communication systems), which affects the communication quality of satellite communication systems and terrestrial communication systems.
- the present disclosure provides an interference processing method and apparatus, a communication device and a storage medium.
- an interference processing method includes:
- the system parameters of the NGSO (Non Geostationary Orbit, non-geostationary orbit) satellite communication system it is determined that in the case where there is an NGSO earth station within the range of each of the sub-regions, the difference between the NGSO satellite communication system and the ground communication system is determined. interference information; wherein the ground communication system includes multiple base stations, and the area covered by the multiple base stations includes multiple sub-areas.
- NGSO Non Geostationary Orbit, non-geostationary orbit
- an access scheme between a UE (User Equipment, user equipment) of the terrestrial communication system in the area and the multiple base stations is determined.
- the interference information between the NGSO satellite communication system and the terrestrial communication system is determined according to the system parameters of the NGSO satellite communication system in the case that there is an NGSO earth station within the range of each sub-region, including:
- the transmit antenna gain of the satellite in the NGSO satellite communication system determines the transmit antenna gain of the satellite in the NGSO satellite communication system, the receive antenna gain of the NGSO ground station and the path loss of the NGSO satellite communication system;
- the interference information of the corresponding sub-region is determined according to the transmit antenna gain, the receive antenna gain and the path loss.
- the determining of the transmit antenna gain of the satellite in the NGSO satellite communication system, the receive antenna gain of the NGSO ground station and the path loss of the NGSO satellite communication system according to the system parameter includes:
- the path loss is determined from the spatial distance.
- the determining the spatial distance according to the system parameter includes:
- the spatial distance is determined according to the elevation angle.
- system parameters include:
- the method further includes:
- the area covered by the plurality of base stations of the terrestrial communication system is divided into the plurality of sub-areas.
- the method further includes:
- an access scheme between the user equipment UE of the terrestrial communication system and the multiple base stations in the area is determined.
- the determining, according to the interference information of the multiple sub-areas, an access scheme between the UE of the terrestrial communication system in the area and the multiple base stations includes:
- an access scheme between the UE of the terrestrial communication system and the multiple base stations in the area is determined.
- the determining superimposed interference information according to the interference information corresponding to the at least two NGSO satellite communication systems in the plurality of sub-regions includes:
- the superimposed interference information is determined according to the interference information corresponding to the at least two NGSO satellite communication systems in the plurality of sub-areas and the distribution probability of the at least two NGSO satellite communication systems in the plurality of sub-areas.
- the determining, according to the interference information of the multiple sub-areas, an access scheme between the UE of the terrestrial communication system in the area and the multiple base stations includes:
- the interference probability corresponding to the communication link between the UE and the currently accessed base station and the NGSO satellite communication system determining, according to the interference information of the multiple sub-regions, the interference probability corresponding to the communication link between the UE and the currently accessed base station and the NGSO satellite communication system
- the base station accessed by the UE is switched.
- the switching the base station accessed by the UE in response to the interference probability being higher than a predetermined probability threshold includes:
- the base station accessed by the UE is switched.
- the area including the plurality of base stations includes a plurality of the UEs
- the determining, according to the interference information of the multiple sub-areas, an access scheme between the UE of the terrestrial communication system and the multiple base stations in the area includes:
- the access schemes of the multiple UEs are respectively determined.
- an interference processing method the method being executed by a terminal, including:
- the handover information is provided by the network device according to the interference between the NGSO satellite communication system and the ground communication system in the case of an NGSO earth station within the range of each sub-area information distribution; the interference information is distributed according to the system parameters of the non-geostationary orbit NGSO satellite communication system, the interference information of the NGSO satellite communication system and the ground communication system; the ground communication system includes a plurality of base stations, the The area covered by the plurality of base stations includes a plurality of the sub-areas.
- the handover information includes an access scheme between the terminal and the plurality of base stations, and the access scheme is determined by the network device according to the interference information of the plurality of subsystems.
- an interference processing apparatus comprising:
- a first determining module configured to determine, according to the system parameters of the NGSO satellite communication system, the interference information between the NGSO satellite communication system and the ground communication system when there is an NGSO earth station within the range of each of the sub-regions; wherein , the ground communication system includes a plurality of base stations, and the area covered by the plurality of base stations includes a plurality of the sub-areas.
- the first determining module includes:
- a first determination submodule configured to determine, according to the system parameters, the transmit antenna gain of the satellite in the NGSO satellite communication system, the receive antenna gain of the NGSO ground station, and the path loss of the NGSO satellite communication system;
- the second determination submodule is configured to determine the interference information of the corresponding subregion according to the transmit antenna gain, the receive antenna gain and the path loss.
- the first determination submodule includes:
- a first determining unit configured to determine, according to the system parameters, the off-axis angle, the azimuth angle of the satellite in the NGSO satellite communication system, and the spatial distance between the satellite and the sub-area;
- a second determining unit configured to determine the transmit antenna gain according to the off-axis angle
- a third determining unit configured to determine the receiving antenna gain according to the off-axis angle and the azimuth angle
- a fourth determining unit configured to determine the path loss according to the spatial distance.
- the first determining unit is specifically configured as:
- the spatial distance is determined according to the elevation angle.
- system parameters include:
- the apparatus further includes:
- a dividing module configured to divide the area covered by the multiple base stations of the terrestrial communication system into the multiple sub-areas.
- the apparatus further includes:
- the second determining module is configured to determine, according to the interference information of the multiple sub-areas, an access scheme between the UE of the terrestrial communication system and the multiple base stations in the area.
- the second determining module includes:
- a third determining submodule configured to determine superimposed interference information according to the interference information corresponding to at least two NGSO satellite communication systems in the plurality of sub-regions;
- the fourth determining submodule is configured to determine, according to the superimposed interference information, an access scheme between the UE of the terrestrial communication system and the multiple base stations in the area.
- the third determination sub-module is specifically configured as:
- the superimposed interference information is determined according to the interference information corresponding to the at least two NGSO satellite communication systems in the plurality of sub-areas and the distribution probability of the at least two NGSO satellite communication systems in the plurality of sub-areas.
- the second determining module includes:
- a fifth determining sub-module configured to determine, according to the interference information of the multiple sub-regions, the interference probability corresponding to the communication link between the UE and the currently accessed base station and the NGSO satellite communication system;
- the handover submodule is configured to, in response to the interference probability being higher than a predetermined probability threshold, handover the base station accessed by the UE.
- the switching sub-module is specifically configured as:
- the base station accessed by the UE is switched.
- the area including the plurality of base stations includes a plurality of the UEs
- the second determining module includes:
- the access schemes of the multiple UEs are respectively determined.
- an interference processing apparatus where the apparatus is applied to a terminal, including:
- the receiving module is configured to receive the handover information used to instruct the terminal to switch the base station; wherein, the handover information is determined by the network device according to the situation that there is an NGSO earth station within the range of each sub-area, and the NGSO satellite communication system is connected with the base station.
- the interference information of the ground communication system is issued; the interference information is issued according to the system parameters of the non-geostationary orbit NGSO satellite communication system, the interference information of the NGSO satellite communication system and the ground communication system; the ground communication system includes multiple a plurality of base stations, and the area covered by the plurality of base stations includes a plurality of the sub-areas.
- the handover information includes an access scheme between the terminal and the plurality of base stations, and the access scheme is determined by the network device according to the interference information of the plurality of subsystems.
- a communication device including at least: a processor and a memory for storing executable instructions that can be executed on the processor, wherein:
- the executable instructions execute the steps in the interference processing method provided by any one of the above.
- a non-transitory computer-readable storage medium where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, any of the above-mentioned A step in an interference handling method.
- Embodiments of the present disclosure provide a communication method and apparatus, a communication device, and a storage medium.
- the area covered by multiple base stations is divided into sub-areas, and the interference information between the NGSO satellite communication system and the terrestrial communication system when NGSO earth stations exist in each sub-area is simulated respectively.
- the connection strategy between the UE and the base station is adjusted according to the interference information in each sub-area, thereby reducing the situation of receiving interference from the NGSO satellite communication system during the communication between the UE and the base station.
- FIG. 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment
- FIG. 2A is a schematic flowchart 1 of an interference processing method according to an exemplary embodiment
- FIG. 2B is a second schematic flowchart of an interference processing method according to an exemplary embodiment
- FIG. 3 is a schematic diagram illustrating interference between an NGSO satellite communication system and a 5G terrestrial communication system according to an exemplary embodiment
- FIG. 4 is a third schematic flowchart of an interference processing method according to an exemplary embodiment
- FIG. 5 is a schematic diagram of performing rasterization processing on the coverage area of a terrestrial communication system according to an exemplary embodiment
- FIG. 6 is a schematic diagram of performing hierarchical calibration on interference information corresponding to grids in an area according to an exemplary embodiment
- FIG. 7 is a schematic diagram illustrating probability aggregation of interference distributions in the same area corresponding to multiple NGSO satellite communication systems according to an exemplary embodiment
- FIG. 8 is a schematic diagram illustrating determining an access scheme for a UE of an intra-area terrestrial communication system according to an exemplary embodiment
- FIG. 9A is a structural block diagram 1 of an interference processing apparatus according to an exemplary embodiment
- 9B is a second structural block diagram of an interference processing apparatus according to an exemplary embodiment.
- FIG. 10 is a schematic structural diagram 1 of a communication device according to an exemplary embodiment
- FIG. 11 is a second schematic structural diagram of a communication device according to an exemplary embodiment.
- first, second, third, etc. may be used in embodiments of the present disclosure to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
- the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
- the words "if” and “if” as used herein can be interpreted as "at the time of” or "when” or "in response to determining.”
- an embodiment of the present disclosure takes an application scenario of access control as an example for illustrative description.
- FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
- the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: several terminals 11 and several base stations 12 .
- the terminal 11 may be a device that provides voice and/or data connectivity to the user.
- the terminal 11 may communicate with one or more core networks via a radio access network (RAN), and the terminal 11 may be an IoT terminal such as a sensor device, a mobile phone (or "cellular" phone) and a
- RAN radio access network
- the computer of the IoT terminal for example, may be a fixed, portable, pocket, hand-held, built-in computer or a vehicle-mounted device.
- a station For example, a station (Station, STA), a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a mobile station (mobile), a remote station (remote station), an access point, a remote terminal ( remote terminal), access terminal, user terminal, user agent, user device, or user equipment (terminal).
- the terminal 11 may also be a device of an unmanned aerial vehicle.
- the terminal 11 may also be a vehicle-mounted device, for example, a trip computer with a wireless communication function, or a wireless terminal connected to an external trip computer.
- the terminal 11 may also be a roadside device, for example, a street light, a signal light, or other roadside devices with a wireless communication function.
- the base station 12 may be a network-side device in a wireless communication system.
- the wireless communication system may be a fourth generation mobile communication (the 4th generation mobile communication, 4G) system, also known as a long term evolution (Long Term Evolution, LTE) system; or, the wireless communication system may also be a 5G system, Also known as new radio (NR) system or 5G NR system.
- the wireless communication system may also be a next-generation system of the 5G system.
- the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network, a new generation of radio access network).
- the base station 12 may be an evolved base station (eNB) used in the 4G system.
- the base station 12 may also be a base station (gNB) that adopts a centralized distributed architecture in a 5G system.
- eNB evolved base station
- gNB base station
- the base station 12 adopts a centralized distributed architecture it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU).
- the centralized unit is provided with a protocol stack of a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control Protocol (Radio Link Control, RLC) layer, and a Media Access Control (Media Access Control, MAC) layer; distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 12 is not limited in this embodiment of the present disclosure.
- PDCP Packet Data Convergence Protocol
- RLC Radio Link Control Protocol
- MAC Media Access Control
- distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 12 is not limited in this embodiment of the present disclosure.
- a wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface.
- the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, such as
- the wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on a 5G next-generation mobile communication network technology standard.
- an E2E (End to End, end-to-end) connection may also be established between the terminals 11 .
- V2V vehicle to vehicle, vehicle-to-vehicle
- V2I vehicle to Infrastructure, vehicle-to-roadside equipment
- V2P vehicle to pedestrian, vehicle-to-person communication in vehicle-to-everything (V2X) communication etc. scene.
- the above wireless communication system may further include a network management device 13 .
- the network management device 13 may be a core network device in a wireless communication system, for example, the network management device 13 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME).
- the network management device may also be other core network devices, such as a serving gateway (Serving GateWay, SGW), a public data network gateway (Public Data Network GateWay, PGW), a policy and charging rules functional unit (Policy and Charging Rules) Function, PCRF) or home subscriber server (Home Subscriber Server, HSS), etc.
- the implementation form of the network management device 13 is not limited in this embodiment of the present disclosure.
- eMBB Enhanced Mobile Broadband, Enhanced Mobile Broadband
- URLLC Ultra-reliable and Low Latency Communications
- mMTC Massive MachineType Communication, large-scale machine type communication
- Satellite communication In wireless communication technology, satellite communication is an important aspect of future wireless communication technology development. Satellite communication refers to the communication carried out by radio communication equipment on the ground using satellites as relays.
- the satellite communication system consists of satellite part and ground part.
- the characteristics of satellite communication are: the communication range is large; as long as the radio waves emitted by the satellite cover the range, communication can be carried out from any two points; it is not easily affected by land disasters (high reliability).
- satellite communications can have the following benefits:
- satellite communication can be used to solve the communication problem.
- emergency communication Under the condition that the cellular communication infrastructure is unavailable in extreme cases such as disasters such as earthquakes, satellite communication can be used to quickly establish a communication connection.
- the delay of service transmission can be reduced by means of satellite communication.
- the satellite Internet constellation has become the focus of the next-generation communication system with its increasingly prominent national strategic position and potential market economic value.
- LEO Low Earth Orbit
- NGSO Low Earth Orbit
- Frequency resources are an important basic support for satellite Internet commercial use, and due to the "scarcity" of frequency resources, NGSO has to share a part of spectrum resources with other wireless network communication systems, which is the NGSO satellite Internet and terrestrial communication systems that are preferentially supported.
- the 5G system is shared in terms of frequency use. If the electromagnetic frequency cannot be well coordinated, serious co-frequency or adjacent-frequency interference will occur.
- how to propose corresponding countermeasures is the current challenge.
- an embodiment of the present disclosure provides an interference processing method, including:
- Step S101 according to the system parameters of the NGSO satellite communication system, determine the interference information of the NGSO satellite communication system and the ground communication system in the case that there is an NGSO earth station within the scope of each sub-region;
- the NGSO satellite system here is mainly composed of two parts: NGSO satellites that provide services and NGSO earth stations.
- the satellites are in high-speed motion due to their orbital characteristics, which brings great difficulties to the system analysis of NGSO.
- NGSO earth stations work on the surface and are also classified into fixed earth stations and moving-in-motion earth stations according to their mobility. The position of the fixed station relative to the surface is determined, and the analysis is relatively easy, while the earth station in motion needs to maintain the ability to provide services in motion, and its trajectory cannot be predicted.
- the support of user mobility is also a service requirement that must be guaranteed, which means that the service areas between the two systems overlap.
- the two belong to two different systems, and it is difficult to carry out real-time information exchange and coordination between the two systems. Therefore, the NGSO communication-in-motion earth station may appear in the coverage area of the terrestrial communication system at any time and cause serious co-frequency or adjacent-frequency interference with the terrestrial communication system. As shown in Figure 3, it is a typical interference scenario between the NGSO communication system and the 5G system.
- inter-system interference reduction is achieved by methods such as setting protection distance, frequency hopping, beam closing, and power control.
- these methods cannot be well applied to the interference elimination between the terrestrial communication system and the NGSO satellite communication system. Since the position information and frequency rules between the systems cannot be exchanged in real time, the schemes such as setting the protection distance and frequency hopping cannot be realized. Solutions such as shutdown and power control are at the expense of system performance and cannot guarantee normal service to users.
- the position information of NGSO satellites is in dynamic change, and the changing position information will lead to the complexity of the interference avoidance strategy.
- data such as satellite ephemeris can be imported into the 5G system in advance, the 5G base station cluster can predict potential interference, and the method of space isolation or frequency coordination can be used in advance to reduce the interference of 5G on the ground to satellites.
- the problem is that the information of the satellite earth station cannot be known in advance. Therefore, the probability-based regional interference prediction method can only be used to avoid it.
- an area including multiple base stations may be an area covered by one base station cluster.
- the system parameters of the NGSO satellite communication system can be imported into multiple base stations in the base station cluster, or into the overall management equipment of the base stations in the area, for example, one base station in the base station cluster. That is to say, the execution subject performing the above steps may be any one of the above-mentioned multiple base stations, and may also be other devices other than the above-mentioned multiple base stations.
- the system parameters may include related parameters of satellites in the NGSO satellite communication system, related parameters of NGSO earth stations, and their link establishment strategies, frequency plans and other information.
- the system parameters may also include relevant parameters of the terrestrial communication system, for example, relevant parameters of the above-mentioned multiple base stations, parameters of link establishment between the base station and the UE, and the like.
- an area including multiple base stations includes multiple sub-areas, and the multiple sub-areas may be multiple sub-areas of the same size and shape divided in a grid manner, or may be based on the distribution and coverage of base stations. It is divided into irregular sub-regions.
- an area including multiple base stations may be an area covered by multiple base stations or base station clusters.
- the interference information between the NGSO satellite communication system and the terrestrial communication system is calculated by assuming that there are NGSO earth stations in the sub-region. For example, when an NGSO earth station exists in a sub-area, information such as interference probability and degree of interference between the NGSO satellite communication system and the ground communication system are calculated according to the system parameters of the NGSO earth station and the NGSO satellite communication system.
- the degree of interference between two systems in different sub-areas can be compared according to the interference information, so as to facilitate adjustment of the interference between the UE and the base station in the terrestrial communication system. access plan.
- the access scheme of the UE can be adjusted, such as re-accessing to the nearest neighbor. cell base station, etc.
- An embodiment of the present disclosure provides an interference processing method, including:
- the transmit antenna gain of the satellite in the NGSO satellite communication system determines the transmit antenna gain of the satellite in the NGSO satellite communication system, the receive antenna gain of the NGSO ground station and the path loss of the NGSO satellite communication system;
- the interference information of the corresponding sub-region is determined according to the transmit antenna gain, the receive antenna gain and the path loss.
- the system parameters may include related parameters of the satellites in the NGSO satellite communication system and parameters of the satellites performing signal transmission.
- the ground communication system may be used as the disturbing system
- the NGSO satellite communication system may be used as the disturbed system.
- the 5G base station is used as the transmitter of the disturbing system
- the 5G user equipment is used as the receiver of the disturbing system
- the NGSO satellite is the transmitter of the disturbed system
- the NGSO earth station is the receiver of the disturbed system.
- the interference between the two systems can be determined by transmitter power, antenna gain and receiver antenna gain and path loss.
- the parameters of the ground communication system are considered to be fixed, and are determined according to the transmitter of the NGSO satellite communication system, that is, the transmitter power and antenna gain of the NGSO satellite, and the receiver antenna gain of the NGSO ground station.
- the calculation process of the interference of the following formula (1-1) can be as follows:
- the interference information can be determined, so as to further determine the access scheme of the UE of the terrestrial communication system in the corresponding sub-area.
- the determining of the transmit antenna gain of the satellite in the NGSO satellite communication system, the receive antenna gain of the NGSO ground station and the path loss of the NGSO satellite communication system according to the system parameter includes:
- the path loss is determined from the spatial distance.
- the system parameters may include the relative positions of the satellites and the earth in the NGSO satellite communication system, and related parameters of the satellite orbits. Therefore, according to the system parameters and the position of the NGSO ground station (the positions of the divided sub-regions), parameters such as the distance and the azimuth angle of the satellite relative to the NGSO ground station can be determined.
- the determination process of the above interference information needs to know the above transmitter power, transmit antenna gain, receive antenna gain, etc. corresponding to the sub-area where the NGSO ground station is located.
- the transmit antenna gain is related to the off-axis angle of the satellite transmit antenna
- the receive antenna gain is related to both the off-axis angle and the azimuth angle.
- Path loss is related to spatial distance. That is, the above formula (1-1) can be expressed as the following formula (1-2):
- ⁇ represents the off-axis angle
- ⁇ represents the azimuth angle
- d represents the spatial distance
- P is a fixed value.
- the off-axis angle, azimuth angle, spatial distance, etc. of the above-mentioned satellite antenna can be determined according to the parameters related to the relative positions of the satellite and the NGSO ground station in the system parameters.
- the corresponding antenna gain and path loss are then determined based on these parameters.
- the off-axis angle ⁇ can be determined by the following formulas (1-3) to (1-6):
- NGSO ground station in, represents the instantaneous latitude and longitude of the NGSO ground station, Indicates the instantaneous latitude and longitude of the satellite; Represents the instantaneous longitude and latitude of the satellite wave number; Re represents the earth's radius, which is 6378Km; h represents the NGSO satellite orbital height.
- the interference information in each sub-area can be calculated by formula, so as to further obtain the distribution of interference in the whole area.
- the determining the spatial distance according to the system parameter includes:
- the spatial distance is determined according to the elevation angle.
- the path loss needs to be determined in the calculation process of the above interference.
- the path loss is related to the space distance from the satellite to the NGSO earth station, and the space distance can be determined by the elevation angle of the satellite relative to the NGSO earth station.
- the elevation angle of the satellite can also be determined through the system parameters, and the spatial distance can be calculated according to the elevation angle.
- the calculation of the elevation angle can be determined by the following formula (1-9):
- the spatial distance between the satellite and the NGSO ground station can be obtained by calculating the elevation angle and the satellite orbit height, and then the above path loss can be determined.
- system parameters include:
- the above system parameters may include the position parameters of the satellite and the NGSO ground station in the NGSO satellite communication system, namely the instantaneous longitude and latitude of the satellite, the instantaneous longitude and latitude of the satellite beam, the instantaneous longitude and latitude of the ground station, and the satellite orbit altitude.
- the instantaneous longitude and latitude of the NGSO ground station can be the longitude and latitude of the location of the divided sub-area. Since the location of the NGSO ground station cannot be obtained in real time, the method used here is to assume that there is an NGSO ground station in the sub-area. Estimated interference. Therefore, the location of the NGSO ground station here adopts the sub-regional location.
- the location of the sub-area may be the geometric center of each sub-area, or may be a location determined according to a predetermined rule, for example, a location with the largest number of users of the ground communication system in each sub-area, where communication is busy.
- the interference information in each sub-area can be calculated and obtained through the above system parameters, thereby facilitating adjustment of the access scheme of the terrestrial communication system to reduce the probability of interference to the NGSO satellite communication system and the terrestrial communication system.
- An embodiment of the present disclosure provides an interference processing method, the method comprising:
- the area covered by the plurality of base stations of the terrestrial communication system is divided into the plurality of sub-areas.
- an area containing multiple base stations is divided into multiple sub-areas, and the division method may be divided into multiple sub-areas of the same size and shape in a grid manner, or may be divided according to the distribution and coverage of base stations. It is divided into irregular sub-regions.
- the interference information between the NGSO satellite communication system and the terrestrial communication system can be calculated by assuming that there are NGSO earth stations in the sub-area. For example, when an NGSO earth station exists in a sub-area, information such as interference probability and degree of interference between the NGSO satellite communication system and the ground communication system are calculated according to the system parameters of the NGSO earth station and the NGSO satellite communication system.
- An embodiment of the present disclosure provides an interference processing method, the method comprising:
- an access scheme between the user equipment UE of the terrestrial communication system and the multiple base stations in the area is determined.
- the degree of interference between two systems in different sub-areas can be compared according to the interference information, so as to facilitate adjustment of the interference between the UE and the base station in the terrestrial communication system. access plan.
- the access scheme of the UE can be adjusted, such as re-accessing to the nearest neighbor. cell base station, etc.
- the interference between the communication link between the UE and the base station and the NGSO satellite communication system can be regulated as a whole, and a more perfect base station reselection strategy is provided. Reduce the probability of mutual interference between two systems in the area.
- An embodiment of the present disclosure provides an interference processing method, including:
- an access scheme between the UE of the terrestrial communication system and multiple base stations in the area is determined.
- the coverage may change at any time, therefore, there may be more than one NGSO satellite communication system affected in the same area.
- the multiple NGSO satellite communication systems respectively to determine the interference information corresponding to each NGSO satellite communication system in each sub-area. Then the interference information of multiple NGSO satellite communication systems is superimposed to obtain superimposed interference information.
- the distribution status of the interference information of the NGSO satellite communication system in the areas of the above-mentioned multiple base stations can be obtained. If there are multiple NGSO satellite communication systems that may have an impact on the area, the distribution status of the interference information of each NGSO satellite communication information in the area can be separately determined.
- the interference information of the multiple NGSO satellite communication systems in the area can be superimposed to form the overall distribution of the interference status of all the NGSO satellite communication systems and the ground communication systems. Wherein, for each sub-area, it is the superposition of the interference information corresponding to each NGSO satellite communication system in the sub-area.
- the above-mentioned superimposed interference information is used to indicate the interference status between the entire plurality of NGSO satellite communication systems and the terrestrial communication system.
- the access scheme is re-determined based on the superimposed interference information. In this way, the interference between the terrestrial communication system and multiple NGSO satellite communication systems can be synchronously reduced, and the stability of each communication system can be improved as a whole.
- the determining superimposed interference information according to the interference information corresponding to the at least two NGSO satellite communication systems in the plurality of sub-regions includes:
- the superimposed interference information is determined according to the interference information corresponding to the at least two NGSO satellite communication systems in the plurality of sub-areas and the distribution probability of the at least two NGSO satellite communication systems in the plurality of sub-areas.
- the coverage of multiple NGSO satellite communication systems may be different.
- the coverage duration, coverage probability, and coverage sub-areas of different NGSO satellite communication systems in the same area may be different. Therefore, for each sub-area in the above-mentioned area, the superimposed interference information can be determined according to the distribution probability of different NGSO satellite communication systems. For example, for each NGSO satellite communication system, the interference information in a sub-region is determined, and then the corresponding distribution probability is used as the weight of the interference information of the NGSO satellite communication system. In this way, the weighted interference information of multiple NGSO satellite communication systems in each sub-area is superimposed, so as to obtain a more accurate distribution of interference conditions as a whole.
- an interference processing method comprising:
- the base station accessed by the UE is switched.
- the area where the coverage areas of multiple base stations are located is divided into multiple sub-areas.
- the interference information of the NGSO satellite communication system and the ground communication system in each sub-region can determine the distribution of the interference information in the region.
- the UE and the base station within the coverage area covered by the above-mentioned multiple base stations form a communication link of the terrestrial communication system, and mutual interference may occur between the communication link and the NGSO satellite communication system. Therefore, based on the above interference information, it is possible to determine the interference probability corresponding to the communication link between the UE and the currently accessed base station and the NGSO satellite communication system, as well as the corresponding interference probability when the UE establishes a communication link with other base stations, etc. information.
- the UE may establish a communication link with any one of the n base stations in the area of the above-mentioned multiple base stations, and the interference probabilities corresponding to the communication links between the UE and the n base stations are different. If the interference probability corresponding to the communication link between the UE and the currently accessed base station is small, that is, less than the above probability threshold, the communication between the UE and the base station will cause little interference to the NGSO satellite communication system, so the current communication can be maintained link.
- the interference probability corresponding to the base station currently accessed by the UE is higher than the predetermined probability threshold, the communication link between the current UE and the base station may have greater interference with the NGSO satellite communication system, and the UE can be switched at this time. access base station. Therefore, the UE can be switched to other base stations than the current base station among the above n base stations. Of course, if a communication link is established between the switched base station and the UE, the corresponding interference probability should also be lower than the above probability threshold.
- the selection of the handover base station may also consider the service quality, signal strength, and congestion of the communication link of the UE accessing the base station. Thereby, a more suitable base station is found for re-access.
- the base station that the UE has currently accessed can be used as the execution subject, and according to the distribution of interference information in the area, determine the interference probability of mutual interference between the communication connection between itself and the UE and the NGSO satellite communication system. If the interference probability is higher than the preset threshold, the UE is instructed to switch the base station. At this time, the UE can automatically select the base station to re-access according to the predetermined cell reselection strategy or the signal strength of the base station.
- multiple base stations in the above-mentioned area can be comprehensively managed by a network device.
- the network device may be independent of the above-mentioned multiple base stations, or may be set in any one of the above-mentioned multiple base stations. Therefore, the network device can be used as the executing subject to determine the corresponding interference probability when there is a communication link between the UE and each base station according to the distribution of the interference information in the above-mentioned area, and select the base station with the interference probability smaller than the preset threshold as the UE
- the target base station that can be handed in, and instruct the UE to hand in the target base station, or instruct the base station that the UE has currently accessed to send an instruction to switch the base station to the UE, and so on.
- switching the base station accessed by the UE in response to the interference probability being higher than a predetermined probability threshold includes:
- the base station accessed by the UE is switched.
- the base station to be handed over may be selected according to the link status information of the connection between the UE and the base station.
- the link status information is information representing the communication quality after the UE accesses the base station, and may include signal strength, bandwidth, delay, and congestion status of the UE accessing the base station.
- the area including the plurality of base stations includes a plurality of the UEs
- the determining, according to the interference information of the multiple sub-areas, an access scheme between the UE of the terrestrial communication system and the multiple base stations in the area includes:
- the access schemes of the multiple UEs are respectively determined.
- each base station can be used to provide services for multiple UEs. Therefore, for the area covered by the above-mentioned multiple base stations, it may be necessary to determine access schemes for multiple UEs, thereby reducing the overall terrestrial communication system. Interference with NGSO satellite communication systems.
- the polling method can be used to sequentially determine the access scheme of each UE according to the interference information of each sub-area, so as to adjust the overall access performance of each communication system in the area in real time.
- An embodiment of the present disclosure further provides an interference processing method. As shown in FIG. 2B , the method is executed by a terminal, including:
- Step S201 receiving handover information for instructing the terminal to switch the base station; wherein, the handover information is used by the network equipment to communicate with the ground according to the situation that there is an NGSO earth station within the range of each sub-area.
- the interference information of the system is issued; the interference information is issued according to the system parameters of the non-geostationary orbit NGSO satellite communication system, the interference information of the NGSO satellite communication system and the ground communication system; the ground communication system includes a plurality of base stations , the area covered by the plurality of base stations includes a plurality of the sub-areas.
- a terminal is a terminal that can receive network services of a terrestrial communication system, including but not limited to a terminal used in a 4G or 5G communication system, including the UE involved in any of the foregoing embodiments, such as a mobile phone.
- the terminal may also have the capability to receive NGSO satellite communication system services.
- the NGSO satellite system here is mainly composed of two parts: NGSO satellites that provide services and NGSO earth stations.
- the satellites are in high-speed motion due to their orbital characteristics, which brings great difficulties to the system analysis of NGSO.
- NGSO earth stations work on the surface and are also classified into fixed earth stations and moving-in-motion earth stations according to their mobility. The position of the fixed station relative to the surface is determined, and the analysis is relatively easy, while the earth station in motion needs to maintain the ability to provide services in motion, and its trajectory cannot be predicted.
- the support of user mobility is also a service requirement that must be guaranteed, which means that the service areas between the two systems overlap.
- the two belong to two different systems, and it is difficult to carry out real-time information exchange and coordination between the two systems. Therefore, the NGSO communication-in-motion earth station may appear in the coverage area of the terrestrial communication system at any time and cause serious co-frequency or adjacent-frequency interference with the terrestrial communication system.
- the interference information between the NGSO satellite communication system and the terrestrial communication system in multiple sub-regions it can be determined whether the communication link between the current terminal and the base station has a larger relationship with the NGSO satellite communication system. Therefore, the above-mentioned handover information is received, and other base stations are re-accessed based on the handover information.
- the terminal accessing the base station can consider the possible interference between the NGSO satellite communication system and the terrestrial communication system, so as to switch to the base station with the above-mentioned low possibility of interference as much as possible, thereby improving the communication quality of the terminal in the terrestrial communication system, and At the same time, the interference of the communication link between the terminal and the base station to the NGSO satellite communication system is reduced.
- better service quality can be obtained in both the NGSO satellite communication system and the ground communication system.
- the handover information includes an access scheme between the terminal and the plurality of base stations, and the access scheme is determined by the network device according to the interference information of the plurality of subsystems.
- the above-mentioned handover information may include the access scheme of the terminal within the range of the above-mentioned multiple base stations, or may be limited to the access scheme of the terminal between the base station currently accessed and the base station to which its adjacent cells can access.
- the terminal sends an access request to the base station to be handed over according to the handover information and accesses it.
- the network device determines, according to the base station currently accessed by the terminal and the interference information between the communication link between other base stations and the NGSO satellite service system, the base station whose interference probability is lower than the predetermined threshold as the terminal can For the base station to be accessed, the base station to which the terminal is handed in may be further determined according to the capability of these base stations (such as signal quality, congestion status, bandwidth, delay, etc.) that can provide services to the terminal.
- the base station that the terminal has currently accessed satisfies that the above-mentioned interference probability is lower than the predetermined threshold, and the communication service that meets the requirements can be obtained, the terminal may not perform handover and maintain the communication connection with the currently accessed base station.
- the embodiments of the present disclosure introduce NGSO satellite Internet satellite orbits in the cluster in advance, the location distribution probability of NGSO satellite Internet communication in motion earth stations that may interfere in the cluster, and the NGSO satellite Internet satellite construction.
- the inherent information of satellite systems such as link strategy, satellite-ground link frequency scheme, etc., and then simulate the satellite operation in the 5G base station cluster to make probability predictions, deal with high-probability and high-hazard potential interference, and slow down the ground 5G system and NGSO satellites as much as possible. Interference between systems.
- the flowchart of the inter-system interference processing method is shown in FIG. 4 , which can be divided into four main parts: initialization 401 , interference calculation 402 , probability aggregation 403 and interference mitigation 404 .
- the above interference processing method is mainly implemented by a base station cluster composed of multiple base stations in the terrestrial 5G system.
- the space in the domain is first gridded, that is, the above-mentioned area is divided into multiple sub-areas. Then, model the scenarios in which each NGSO satellite communication-in-motion earth station appears in each grid (sub-area), and calculate the degree of harm that will cause interference to the 5G system when the NGSO-in-motion earth station appears in the grid.
- the main object-oriented is the interference between the terrestrial 5G system and the NGSO satellite communication system. Since the location of the 5G base station is relatively determined, in this method, a base station cluster composed of several 5G base stations is selected as the method execution object, as shown in Figure 5, which is The extent of the area covered by a cluster of 5G base stations. Since there are a large number of movable NGSO earth stations in the NGSO satellite communication system, the location and time of the NGSO earth stations will affect the strategy of selecting satellites and building a chain.
- the satellite Internet satellite operating orbit at the current moment can be obtained from the official data submitted by each NGSO satellite Internet company. Position parameters and other information, according to which the NGSO satellite operating position at the current moment can be calculated.
- the domain is divided into several grids at equal intervals, and the position of the center point of each grid refers to the entire grid. all locations within. Based on this rasterization method, spatial discretization is completed, and the rasterization process is shown in Figure 5.
- the minimum unit of each operation is obtained, that is, for a 5G user in a certain period of time, when the earth station in motion is assumed to appear in a certain grid, the interference between the two systems Scenario analysis. Since the present invention only studies the interference situation between communication systems, the classical methods are used to make assumptions about the user bearing capacity of the 5G base station, the scheduling method, and the like, and no in-depth research is done. In the 5G system, the 5G system information in the domain such as user location, frequency usage, base station location, etc.
- the location of the ground station in motion in the NGSO satellite communication system (for each grid Circular calculation), the NGSO satellite communication system satellites serving the grid (the star orbit is known, the link establishment strategy is known), and the frequency of use can be set to be determined. Therefore, the working link related information of the two systems (NGSO satellites The communication system assumes that there is a communication-in-motion earth station in the grid, rather than actually confirming the existence), and the interference situation between the two communication systems can be calculated accordingly.
- the main task of the interference calculation part is to calculate, according to the current simulated link status, that there is a moving earth station in the grid, which will be interfered by the current 5G system link, and calibrate the value to the current grid.
- the link information data in the two systems can be imported.
- the data to be imported can include the contents shown in Table 1 below:
- an interference scenario is established.
- the transmitter of the disturbing system is a 5G base station
- the receiver of the disturbing system is a 5G user
- the transmitter of the disturbed system is an NGSO satellite
- the receiver of the disturbed system is an NGSO earth station.
- the interference calculation process refers to the following formula (2-1):
- P represents the transmitter power, which is a fixed value in this scenario
- G trs ( ⁇ ) is the transmitter antenna gain, which is related to the transmission off-axis angle
- G rcv ( ⁇ , ⁇ ) is the receiver antenna Gain, from the characteristics of the 5G system, this value is related to both the off-axis angle and the azimuth angle
- L(d) is the path loss, which is considered here as the free space loss, so it is only related to the spatial distance.
- the off-axis angle can be determined by the following formulas (2-2) to (2-5):
- the azimuth calculation formula is:
- the link building strategy between the satellite and the ground station also needs to be considered.
- the link building strategy is limited by the minimum elevation angle. Therefore, the satellite-ground elevation angle needs to be calculated.
- the elevation angle calculation formula is given by formula (2-8):
- the interference value I is obtained, and then the segment function is used to perform interval judgment on the value, as shown in FIG. 6 , the calculated interference value is calibrated in the grid.
- the base station cluster contains the earth station in motion in each grid, the severity of the interference to the earth station in motion, and the probability distribution map of each system is superimposed to obtain each system.
- multi-system integration is carried out according to the system service status. The probability of occurrence of the system is high, and the comprehensive weight can be appropriately increased.
- the comprehensive weighting is used to delineate the threshold range, and the area of the area with severe interference is obtained.
- the meaning of the corresponding area is: if there is an earth station in motion in this area, there is a high probability of severe interference, and users in the system cannot get the services of the two systems at the same time.
- the size of the area with severe interference when the 5G user is served by the base station in the domain can be obtained. If the area of the area is within the acceptable range, it is considered that no other operation is required. If the area is larger than the acceptable range, the other base stations in the domain will coordinate and count the link status when other base stations that can provide services in the domain provide services for the user, and enter step 2 for recalculation. As shown in Figure 8, the interference areas under different access schemes are obtained. , select a reasonable access scheme within the acceptable interference area.
- the embodiment of the present disclosure proposes a method for handling interference of an NGSO satellite communication system in an environment with unknown information.
- the method in the embodiment of the present disclosure it is possible to comprehensively judge the connection of a 5G user based on the interference information such as the distribution status of NGSO earth stations and the interference severity. It can avoid the occurrence of interference in the maximum probability, and provide a method to realize the frequency coordination between the NGSO satellite communication system and the ground communication system.
- an embodiment of the present disclosure further provides an interference processing apparatus 910, which is applied in a terminal and includes:
- the first determining module 911 is configured to determine, according to the system parameters of the NGSO satellite communication system, the interference information between the NGSO satellite communication system and the ground communication system when there is an NGSO earth station within the scope of each of the sub-regions;
- the terrestrial communication system includes a plurality of base stations, and the area covered by the plurality of base stations includes a plurality of the sub-areas.
- the first determining module includes:
- a first determination submodule configured to determine, according to the system parameters, the transmit antenna gain of the satellite in the NGSO satellite communication system, the receive antenna gain of the NGSO ground station, and the path loss of the NGSO satellite communication system;
- the second determination submodule is configured to determine the interference information of the corresponding subregion according to the transmit antenna gain, the receive antenna gain and the path loss.
- the first determination submodule includes:
- a first determining unit configured to determine, according to the system parameters, the off-axis angle, the azimuth angle of the satellite in the NGSO satellite communication system, and the spatial distance between the satellite and the sub-area;
- a second determining unit configured to determine the transmit antenna gain according to the off-axis angle
- a third determining unit configured to determine the receiving antenna gain according to the off-axis angle and the azimuth angle
- a fourth determining unit configured to determine the path loss according to the spatial distance.
- the first determining unit is specifically configured as:
- the spatial distance is determined according to the elevation angle.
- system parameters include:
- the apparatus further includes:
- a dividing module configured to divide the area covered by the multiple base stations of the terrestrial communication system into the multiple sub-areas.
- the apparatus further includes:
- the second determining module is configured to determine, according to the interference information of the multiple sub-areas, an access scheme between the UE of the terrestrial communication system and the multiple base stations in the area.
- the second determining module includes:
- a third determining submodule configured to determine superimposed interference information according to the interference information corresponding to at least two NGSO satellite communication systems in the plurality of sub-regions;
- the fourth determining submodule is configured to determine, according to the superimposed interference information, an access scheme between the UE of the terrestrial communication system and the multiple base stations in the area.
- the third determination sub-module is specifically configured as:
- the superimposed interference information is determined according to the interference information corresponding to the at least two NGSO satellite communication systems in the plurality of sub-areas and the distribution probability of the at least two NGSO satellite communication systems in the plurality of sub-areas.
- the second determining module includes:
- a fifth determining sub-module configured to determine, according to the interference information of the multiple sub-regions, the interference probability corresponding to the communication link between the UE and the currently accessed base station and the NGSO satellite communication system;
- a handover sub-module configured to switch the base station accessed by the UE in response to the interference probability being higher than a predetermined probability threshold.
- the switching sub-module is specifically configured as:
- the base station accessed by the UE is switched.
- the area including the plurality of base stations includes a plurality of the UEs
- the second determining module includes:
- the access schemes of the multiple UEs are respectively determined.
- an embodiment of the present disclosure further provides an interference processing apparatus 920, where the apparatus is applied to a terminal, including:
- the receiving module 921 is configured to receive handover information for instructing the terminal to switch the base station; wherein, the handover information is determined by the network device according to the situation that there is an NGSO earth station within the range of each sub-area, the NGSO satellite communication system
- the interference information with the ground communication system is issued; the interference information is issued according to the system parameters of the non-geostationary orbit NGSO satellite communication system, the interference information of the NGSO satellite communication system and the ground communication system;
- the ground communication system includes a plurality of base stations, and the area covered by the plurality of base stations includes a plurality of the sub-areas.
- the handover information includes an access scheme between the terminal and the plurality of base stations, and the access scheme is determined by the network device according to the interference information of the plurality of subsystems.
- FIG. 10 is a structural block diagram of a communication device provided by an embodiment of the present disclosure.
- the communication device may be a terminal, such as a user equipment UE or the like involved in any of the foregoing embodiments.
- communication device 1000 may be a mobile phone, computer, digital broadcast user equipment, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
- a communication device 1000 may include at least one of the following components: a processing component 1002, a memory 1004, a power supply component 1006, a multimedia component 1008, an audio component 1010, an input/output (I/O) interface 1012, a sensor component 1014, and Communication component 1016.
- the processing component 1002 generally controls the overall operation of the communication device 1000, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
- the processing component 1002 can include at least one processor 1020 to execute instructions to perform all or part of the steps of the above-described methods. Additionally, processing component 1002 can include at least one module that facilitates interaction between processing component 1002 and other components. For example, processing component 1002 may include a multimedia module to facilitate interaction between multimedia component 1008 and processing component 1002.
- Memory 1004 is configured to store various types of data to support operation at communication device 1000 . Examples of such data include instructions for any application or method operating on the communication device 1000, contact data, phonebook data, messages, pictures, videos, and the like. Memory 1004 may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
- SRAM static random access memory
- EEPROM electrically erasable programmable read only memory
- EPROM erasable Programmable Read Only Memory
- PROM Programmable Read Only Memory
- ROM Read Only Memory
- Magnetic Memory Flash Memory
- Magnetic or Optical Disk Magnetic Disk
- Power supply component 1006 provides power to various components of communication device 1000 .
- Power supply components 1006 may include a power management system, at least one power supply, and other components associated with generating, managing, and distributing power to communication device 1000 .
- Multimedia component 1008 includes a screen that provides an output interface between the communication device 1000 and the user.
- the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
- the touch panel includes at least one touch sensor to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect wake-up time and pressure associated with the touch or swipe action.
- the multimedia component 1008 includes a front-facing camera and/or a rear-facing camera. When the communication device 1000 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
- Audio component 1010 is configured to output and/or input audio signals.
- audio component 1010 includes a microphone (MIC) that is configured to receive external audio signals when communication device 1000 is in operating modes, such as calling mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 1004 or transmitted via communication component 1016 .
- audio component 1010 also includes a speaker for outputting audio signals.
- the I/O interface 1012 provides an interface between the processing component 1002 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
- Sensor assembly 1014 includes at least one sensor for providing various aspects of status assessment for communication device 1000 .
- the sensor assembly 1014 can detect the open/closed state of the device 1000, the relative positioning of the components, such as the display and keypad of the communication device 1000, the sensor assembly 1014 can also detect the communication device 1000 or a component of the communication device 1000
- the position of the communication device 1000 changes, the presence or absence of user contact with the communication device 1000 , the orientation or acceleration/deceleration of the communication device 1000 , and the temperature of the communication device 1000 changes.
- Sensor assembly 1014 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
- Sensor assembly 1014 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
- the sensor assembly 1014 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
- Communication component 1016 is configured to facilitate wired or wireless communication between communication device 1000 and other devices.
- the communication device 1000 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
- the communication component 1016 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
- the communication component 1016 also includes a near field communication (NFC) module to facilitate short-range communication.
- NFC near field communication
- the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
- RFID radio frequency identification
- IrDA infrared data association
- UWB ultra-wideband
- Bluetooth Bluetooth
- the communication device 1000 may be implemented by at least one application specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate An array (FPGA), controller, microcontroller, microprocessor, or other electronic component implementation for performing the above method.
- ASIC application specific integrated circuit
- DSP digital signal processor
- DSPD digital signal processing device
- PLD programmable logic device
- FPGA field programmable gate An array
- controller microcontroller, microprocessor, or other electronic component implementation for performing the above method.
- non-transitory computer readable storage medium including instructions, such as a memory 1004 including instructions, executable by the processor 1020 of the communication device 1000 to perform the above method.
- the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
- an embodiment of the present disclosure shows the structure of another communication device.
- the communication device may be the base station and other network devices involved in the embodiments of the present disclosure.
- the communication device 1100 may be provided as a network device.
- the communication device 1100 includes a processing component 1122, which further includes at least one processor, and a memory resource, represented by memory 1132, for storing instructions executable by the processing component 1122, such as an application program.
- An application program stored in memory 1132 may include one or more modules, each corresponding to a set of instructions.
- the processing component 1122 is configured to execute instructions to perform any of the aforementioned methods applied to the communication device.
- the communication device 1100 may also include a power supply assembly 1126 configured to perform power management of the communication device 1100, a wired or wireless network interface 1150 configured to connect the communication device 1100 to a network, and an input output (I/O) interface 1158 .
- Communication device 1100 may operate based on an operating system stored in memory 1132, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.
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Abstract
Description
Claims (30)
- 一种干扰处理方法,其中,所述方法应用于网络设备,包括:根据非对地静止轨道NGSO卫星通信系统的系统参数,确定在每个子区域的范围内存在NGSO地球站的情况下,所述NGSO卫星通信系统与地面通信系统的干扰信息;其中,所述地面通信系统包括多个基站,所述多个基站所覆盖的区域包括多个所述子区域。
- 根据权利要求1所述的方法,其中,所述根据NGSO卫星通信系统的系统参数,确定在每个子区域的范围内存在NGSO地球站的情况下,所述NGSO卫星通信系统与地面通信系统的干扰信息,包括:根据所述系统参数,确定所述NGSO卫星通信系统中卫星的发射天线增益、所述NGSO地面站的接收天线增益和所述NGSO卫星通信系统的路径损耗;根据所述发射天线增益、所述接收天线增益和所述路径损耗,确定对应子区域的所述干扰信息。
- 根据权利要求2所述的方法,其中,所述根据所述系统参数,确定所述NGSO卫星通信系统中卫星的发射天线增益、所述NGSO地面站的接收天线增益和所述NGSO卫星通信系统的路径损耗,包括:根据所述系统参数,确定所述NGSO卫星通信系统中卫星的离轴角、方位角和所述卫星与所述子区域的空间距离;根据所述离轴角确定所述发射天线增益;根据所述离轴角和所述方位角,确定所述接收天线增益;根据所述空间距离确定所述路径损耗。
- 根据权利要求3所述的方法,其中,所述根据所述系统参数,确定所述空间距离,包括:根据所述系统参数,确定所述NGSO卫星通信系统中卫星的仰角;根据所述仰角确定所述空间距离。
- 根据权利要求3所述的方法,其中,所述系统参数,包括:所述NGSO卫星通信系统中卫星的瞬时经纬度;所述NGSO卫星通信系统中卫星波束的瞬时经纬度;所述NGSO地面站的瞬时经纬度;所述NGSO卫星通信系统中卫星的轨道高度。
- 根据权利要求1至5任一所述的方法,其中,所述方法还包括:将所述地面通信系统的多个基站所覆盖的区域划分为所述多个子区域。
- 根据权利要求1至6任一所述的方法,其中,所述方法还包括:根据所述多个子区域的所述干扰信息,确定所述区域内所述地面通信系统的用户设备UE与所述多个基站之间的接入方案。
- 根据权利要求7所述的方法,其中,所述根据所述多个子区域的所述干扰信息,确定所述区域内所述地面通信系统的UE与所述多个基站之间的接入方案,包括:根据至少两个NGSO卫星通信系统在所述多个子区域对应的所述干扰信息,确定叠加干扰信息;根据所述叠加干扰信息,确定所述区域内所述地面通信系统的UE与所述多个基站之间的接入方案。
- 根据权利要求8所述的方法,其中,所述根据所述至少两个NGSO卫星通信系统在所述多个子区域对应的所述干扰信息,确定叠加干扰信息,包括:根据所述至少两个NGSO卫星通信系统在所述多个子区域对应的所述干扰信息和所述至少两个NGSO卫星通信系统在所述多个子区域的分 布概率,确定所述叠加干扰信息。
- 根据权利要求7至9任一所述的方法,其中,所述根据所述多个子区域的所述干扰信息,确定所述区域内所述地面通信系统的UE与所述多个基站之间的接入方案,包括:根据所述多个子区域的所述干扰信息,确定所述UE和当前已接入基站之间的通信链路与所述NGSO卫星通信系统对应的干扰概率;响应于所述干扰概率高于预定的概率阈值,切换所述UE接入的基站。
- 根据权利要求10所述的方法,其中,所述响应于所述干扰概率高于预定的概率阈值,切换所述UE接入的基站,包括:响应于所述干扰概率高于预定的概率阈值,确定所述UE接入所述区域内各基站的情况下的链路状况信息;根据所述链路状况信息,切换所述UE接入的基站。
- 根据权利要求7至11任一所述的方法,其中,所述包括多个基站的区域内包括多个所述UE;所述根据所述多个子区域的所述干扰信息,确定所述区域内所述地面通信系统的UE与所述多个基站之间的接入方案,包括:根据所述多个子区域的所述干扰信息,分别确定所述多个UE的所述接入方案。
- 一种干扰处理方法,其中,所述方法被终端执行,包括:接收用于指示所述终端切换基站的切换信息;其中,所述切换信息由网络设备根据在每个子区域的范围内存在NGSO地球站的情况下,所述NGSO卫星通信系统与地面通信系统的干扰信息下发;所述干扰信息根据非对地静止轨道NGSO卫星通信系统的系统参数,所述NGSO卫星通信系统与地面通信系统的干扰信息下发;所述地面通信系统包括多个 基站,所述多个基站所覆盖的区域包括多个所述子区域。
- 根据权利要求13所述的方法,其中,所述切换信息包括所述终端与所述多个基站之间的接入方案,所述接入方案由所述网络设备根据所述多个子系统的所述干扰信息确定。
- 一种干扰处理装置,其中,所述装置应用于网络设备,包括:第一确定模块,配置为根据NGSO卫星通信系统的系统参数,确定在每个子区域的范围内存在NGSO地球站的情况下,所述NGSO卫星通信系统与地面通信系统的干扰信息;其中,所述地面通信系统包括多个基站,所述多个基站所覆盖的区域包括多个所述子区域。
- 根据权利要求15所述的装置,其中,所述第一确定模块,包括:第一确定子模块,配置为根据所述系统参数,确定所述NGSO卫星通信系统中卫星的发射天线增益、所述NGSO地面站的接收天线增益和所述NGSO卫星通信系统的路径损耗;第二确定子模块,配置为根据所述发射天线增益、所述接收天线增益和所述路径损耗,确定对应子区域的所述干扰信息。
- 根据权利要求16所述的装置,其中,所述第一确定子模块包括:第一确定单元,配置为根据所述系统参数,确定所述NGSO卫星通信系统中卫星的离轴角、方位角和所述卫星与所述子区域的空间距离;第二确定单元,配置为根据所述离轴角确定所述发射天线增益;第三确定单元,配置为根据所述离轴角和所述方位角,确定所述接收天线增益;第四确定单元,配置为根据所述空间距离确定所述路径损耗。
- 根据权利要求17所述的装置,其中,所述第一确定单元,具体配置为:根据所述系统参数,确定所述NGSO卫星通信系统中卫星的仰角;根据所述仰角确定所述空间距离。
- 根据权利要求17所述的装置,其中,所述系统参数,包括:所述NGSO卫星通信系统中卫星的瞬时经纬度;所述NGSO卫星通信系统中卫星波束的瞬时经纬度;所述NGSO地面站的瞬时经纬度;所述NGSO卫星通信系统中卫星的轨道高度。
- 根据权利要求17至19任一所述的装置,其中,所述装置还包括:划分模块,配置为将所述地面通信系统的多个基站所覆盖的区域划分为所述多个子区域。
- 根据权利要求15至20任一所述的装置,其中,所述装置还包括:第二确定模块,配置为根据所述多个子区域的所述干扰信息,确定所述区域内所述地面通信系统的UE与所述多个基站之间的接入方案。
- 根据权利要求21所述的装置,其中,所述第二确定模块,包括:第三确定子模块,配置为根据至少两个NGSO卫星通信系统在所述多个子区域对应的所述干扰信息,确定叠加干扰信息;第四确定子模块,配置为根据所述叠加干扰信息,确定所述区域内所述地面通信系统的UE与所述多个基站之间的接入方案。
- 根据权利要求22所述的装置,其中,所述第三确定子模块,具体配置为:根据所述至少两个NGSO卫星通信系统在所述多个子区域对应的所述干扰信息和所述至少两个NGSO卫星通信系统在所述多个子区域的分布概率,确定所述叠加干扰信息。
- 根据权利要求21至23任一所述的装置,其中,所述第二确定模块,包括:第五确定子模块,配置为根据所述多个子区域的所述干扰信息,确 定所述UE和当前已接入基站之间的通信链路与所述NGSO卫星通信系统对应的干扰概率;切换子模块,配置为响应于所述干扰概率高于预定的概率阈值,切换所述UE接入的基站。
- 根据权利要求24所述的装置,其中,所述切换子模块,具体配置为:响应于所述干扰概率高于预定的概率阈值,确定所述UE接入所述区域内各基站的情况下的链路状况信息;根据所述链路状况信息,切换所述UE接入的基站。
- 根据权利要求21至25任一所述的装置,其中,所述包括多个基站的区域内包括多个所述UE;所述第二确定模块,包括:根据所述多个子区域的所述干扰信息,分别确定所述多个UE的所述接入方案。
- 一种干扰处理装置,其中,所述装置应用于终端,包括:接收模块,配置为接收用于指示所述终端切换基站的切换信息;其中,所述切换信息由网络设备根据在每个子区域的范围内存在NGSO地球站的情况下,所述NGSO卫星通信系统与地面通信系统的干扰信息下发;所述干扰信息根据非对地静止轨道NGSO卫星通信系统的系统参数,所述NGSO卫星通信系统与地面通信系统的干扰信息下发;所述地面通信系统包括多个基站,所述多个基站所覆盖的区域包括多个所述子区域。
- 根据权利要求27所述的装置,其中,所述切换信息包括所述终端与所述多个基站之间的接入方案,所述接入方案由所述网络设备根据所述多个子系统的所述干扰信息确定。
- 一种通信设备,其中,所述通信设备至少包括:处理器和用于存储能够在所述处理器上运行的可执行指令的存储器,其中:处理器用于运行所述可执行指令时,所述可执行指令执行上述权利要求1至12或13至14任一项提供的干扰处理方法中的步骤。
- 一种非临时性计算机可读存储介质,其中,所述计算机可读存储介质中存储有计算机可执行指令,该计算机可执行指令被处理器执行时实现上述权利要求1至12或13至14任一项提供的干扰处理方法中的步骤。
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