CN115884381A - Interference suppression method, device, base station and storage medium - Google Patents

Interference suppression method, device, base station and storage medium Download PDF

Info

Publication number
CN115884381A
CN115884381A CN202111138416.6A CN202111138416A CN115884381A CN 115884381 A CN115884381 A CN 115884381A CN 202111138416 A CN202111138416 A CN 202111138416A CN 115884381 A CN115884381 A CN 115884381A
Authority
CN
China
Prior art keywords
base station
interference
frame structure
vdoa
preset
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202111138416.6A
Other languages
Chinese (zh)
Inventor
李微
赵路
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
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
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CN202111138416.6A priority Critical patent/CN115884381A/en
Priority to PCT/CN2022/119098 priority patent/WO2023045828A1/en
Publication of CN115884381A publication Critical patent/CN115884381A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The present invention relates to the field of communication transmission technologies, and in particular, to an interference suppression method, an apparatus, a base station, and a storage medium. The interference suppression method comprises the following steps: acquiring a frame structure of a first base station and a frame structure of a second base station; determining an interference time slot according to a frame structure of a first base station and a frame structure of a second base station; acquiring a vertical angle VDOA of a DOA between a first base station and a terminal; under the condition that the obtained VDOA is smaller than the preset VDOA, executing corresponding interference suppression measures according to the relation between the number of the interference time slots and the number of the preset time slots; and corresponding interference suppression measures are preset according to the relation between the number of the interference time slots and the number of the preset time slots. According to the embodiment of the application, the interference situation between the first base station and the second base station can be improved to a great extent.

Description

Interference suppression method, device, base station and storage medium
Technical Field
The present disclosure relates to the field of communication transmission technologies, and in particular, to an interference suppression method, an apparatus, a base station, and a storage medium.
Background
The aviation communication system has two main solutions, one is a satellite communication scheme, and the other is an air-ground broadband communication scheme. The satellite communication scheme has wide coverage range, can cover both land and ocean, but has high deployment and operation cost and prolonged network time; the air-ground broadband communication scheme can be deployed only in a continental region, but has the advantages of low cost, high speed, small time delay, high technology iteration upgrading speed and the like. The air-ground broadband communication system is used for erecting a ground base station and an air antenna along a flight route or a specific airspace, establishing a ground-air communication link and further accessing the Internet; laying the ground-air communication base station on the air path tends to consider interference between the ground-air communication base station and other base stations on the ground (such as New Radio (NR) base stations).
At present, a common interference suppression method on an air route is realized through network deployment and planning, namely, an NR base station is not arranged near a ground-air communication base station (generally in a range of 2-3 kilometers), and partial interference is eliminated through position isolation of a deployed station. The ground-air communication base station adopts a beam forming method based on direction of arrival (DOA), but interference still exists between the ground-air communication base station and the NR base station due to the transmission beam of the base station.
Disclosure of Invention
The present disclosure provides an interference suppression method, an interference suppression device, a base station, and a storage medium, which are used to reduce interference between base stations.
In order to achieve the above object, an embodiment of the present application provides an interference suppression method, applied to a first base station, including: acquiring a frame structure of a first base station and a frame structure of a second base station; determining an interference time slot according to the frame structure of the first base station and the frame structure of the second base station; acquiring a Vertical angle of DOA (VDOA) between the first base station and a terminal; under the condition that the obtained VDOA is smaller than the preset VDOA, executing corresponding interference suppression measures according to the relation between the number of the interference time slots and the number of the preset time slots; and the relation between the number of the interference time slots and the number of the preset time slots is preset with corresponding interference suppression measures.
To achieve the above object, an embodiment of the present application further provides an interference suppression apparatus, including: the first acquisition module is used for acquiring a frame structure of a first base station and a frame structure of a second base station; an interference determining module, configured to determine an interference timeslot according to a frame structure of the first base station and a frame structure of the second base station; an angle obtaining module, configured to obtain a vertical angle VDOA of a direction of arrival DOA between the first base station and the terminal; the matching adjusting module is used for executing corresponding interference suppression measures according to the relation between the number of the interference time slots and the number of the preset time slots under the condition that the obtained VDOA is smaller than the preset VDOA; and the relation between the number of the interference time slots and the number of the preset time slots is preset with corresponding interference suppression measures.
To achieve the above object, an embodiment of the present application further provides a base station, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the above method.
To achieve the above object, an embodiment of the present application further provides a computer-readable storage medium storing a computer program, which when executed by a processor implements the above method.
In the embodiment of the application, the vertical angle VDOA of the interference time slot and the direction of arrival DOA is obtained, and if the obtained VDOA is lower than the preset VDOA, the corresponding adjustment method is adopted under different conditions according to the quantity relationship between the interference time slot and the preset VDOA, so that the interference condition between the first base station and the second base station can be improved to a great extent.
Drawings
Fig. 1 is a flowchart of an interference suppression method according to an embodiment of the present invention;
fig. 2 is a first schematic diagram illustrating an interference suppression method according to an embodiment of the present invention;
fig. 3 is a second schematic diagram of an interference suppression method according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an interference suppression apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in the examples of the present application, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present application, and the embodiments may be mutually incorporated and referred to without contradiction.
The terms "first" and "second" in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "comprise" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a system, product or apparatus that comprises a list of elements or units is not limited to only those elements or units but may alternatively include other elements or units not expressly listed or inherent to such product or apparatus. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.
One embodiment of the invention relates to an interference suppression method which is applied to a first base station. The implementation details of the interference suppression method of the present embodiment are specifically described below, and the following description is only provided for facilitating understanding of the implementation details, and is not necessary for implementing the present embodiment. The specific flow is shown in figure 1.
Step 101, acquiring a frame structure of a first base station and a frame structure of a second base station;
step 102, determining an interference time slot according to a frame structure of a first base station, a frame structure of a second base station and a GNSS clock;
step 103, acquiring a vertical angle VDOA of a DOA between the first base station and the terminal;
104, under the condition that the obtained VDOA is smaller than the preset VDOA, executing corresponding interference suppression measures according to the relation between the number of the interference time slots and the number of the preset time slots; and corresponding interference suppression measures are preset according to the relation between the number of the interference time slots and the number of the preset time slots.
In this embodiment, the vertical angle VDOA of the interference time slot and the direction of arrival DOA is obtained, and if the obtained VDOA sum is lower than the preset VDOA, the interference condition between the first base station and the second base station can be improved to a great extent by adopting a corresponding adjustment method under different conditions according to the number relationship between the interference time slot and the preset time slot.
The following describes the implementation details of the interference suppression method of the present embodiment in detail, and the following is only provided for the convenience of understanding and is not necessary for implementing the present embodiment.
In step 101, a frame structure of a first base station and a frame structure of a second base station are obtained. That is, a data structure of a base transceiver station is acquired for identifying interference and reducing interference.
In a specific implementation, for example, basic data in frame structures of the first base station and the second base station, such as a time slot configuration period, a downlink time slot position, a downlink symbol number, an uplink time slot position, an uplink symbol number, and the like of the first base station and the second base station, are obtained for subsequently identifying and weakening interference between the base stations based on the related data. And the interference suppression method can acquire the interference in real time before the interference processing step, is more accurate compared with a preset fixed value, accords with the actual situation, and can ensure the effect of interference suppression.
In one example, the frame structures of the first base station and the second base station are determined according to the actual station arrangement situation.
In one example, the first base station is an Air To Ground (ATG) base station; the second base station is an NR base station. The ATG base station is different from a common macro station, and the terminal of the ATG base station is equipment carried by an airplane in air flight.
In step 102, an interference slot is determined according to a frame structure of the first base station and a frame structure of the second base station. Specifically, if the frame structure of the first base station is a downlink time slot and the frame structure of the second base station is an uplink time slot in the same time slot, the time slot is an interference time slot. When the frame structure of the first base station is a downlink time slot, the frame structure of the second base station is an uplink time slot, which may be referred to as a collision between the time slot of the first base station and the time slot of the second base station.
In one example, offset values of the frame structure of the first base station and the frame structure of the second base station are obtained according to a Global Navigation Satellite System (GNSS) clock; determining the interference time slot according to the offset value, the frame structure of the first base station and the frame structure of the second base station; and the frame structure of the first base station in the interference time slot is a downlink time slot, and the frame structure of the second base station is an uplink time slot. Namely, according to the offset of the frame header relative to the GNSS, an offset value between the frame structure of the first base station and the frame structure of the second base station is obtained, and the frame structures of the two base stations are compared according to the offset value to identify and obtain a colliding time slot, wherein the obtained colliding time slot is an interference time slot.
In step 103, acquiring a vertical angle VDOA of a direction of arrival DOA between the first base station and the terminal;
in a specific implementation, data interaction is performed between an ATG base station (a first base station) and a terminal through beamforming, the beamforming uses a DOA beamforming method, the terminal needs to report Global Positioning System (GPS) location information in real time, the ATG base station receives the GPS of the terminal, calculates DOA angles pointing to the terminal, including a vertical angle VDOA, and can also calculate a Horizontal angle (HDOA) at the same time, in combination with the GPS location information of the ATG base station, and the VDOA and the HDOA are jointly used for determining a beamforming range. For example, the first base station calculates VDOA and HDOA in real time according to GPS information reported by the terminal, the CPE is a kind of terminal for short for user pre-Equipment, λ in fig. 2 is an elevation angle of the first base station connected to the CPE, β is an elevation angle of a normal direction of the antenna array, the antenna array is an antenna panel composed of sub-arrays and used for transmitting and receiving signals, and VDOA = λ - β; h in FIG. 3 is HDOA. The beamforming range obtained by adopting the GPS positioning information reported by the terminal is more accurate.
In step 104, under the condition that the obtained VDOA is smaller than the preset VDOA, executing a corresponding interference suppression measure according to the relationship between the number of the interference slots and the number of the preset slots; wherein, the relation between the number of the interference time slots and the number of the preset time slots is preset with corresponding interference suppression measures.
The first base station and the second base station are positioned on the ground, the terminal is positioned in the aerial flight equipment, and the first base station and the terminal carry out information interaction through beamforming; if the horizontal position of the terminal is low (the vertical angle is small), even if a second base station is not arranged near the first base station (generally in the range of 2-3 kilometers), when the first base station carries out data interaction to the terminal through beam forming, a transmitted beam still generates interference to the second base station due to sidelobe. In this embodiment, when the position of the terminal is too low, a corresponding adjustment is performed on a beamforming process between the terminal and the first base station to reduce interference between the first base station and the second base station. For example, when the terminal is at the edge of a cell, interference between the first base station and the second base station is more likely to be generated, but the present embodiment can overcome the interference due to the adjustment of beamforming between the base station and the terminal with low vertical angle.
That is, the range of beamforming is limited in a particular implementation, such as setting a preset vertical angle VDOA (VDOA) Limit ) When the current VDOA calculated by the terminal is more than or equal to the VDOA Limit If so, the process of beam forming between the first base station and the terminal is not limited, and the beam forming is realized by directly using the data calculated in real time; and when the VDOA between the first base station and the terminal is smaller than the preset vertical angle VDOA, performing adaptive adjustment, and reducing the interference between the first base station and the second base station by controlling the range of the shaped beam.
In an example, the performing, according to the relationship between the number of the interference timeslots and the number of the preset timeslots, a corresponding interference suppression measure includes: under the condition that the number of the interference time slots is greater than the number of the preset time slots, the beamforming between the first base station and the terminal adopts the angle of the preset VDOA; under the condition that the number of the interference time slots is not more than the number of the preset time slots, only scheduling the time slots meeting preset conditions; and scheduling the time slot to perform data interaction in the time slot.
In a specific implementation, in case the number of the interference slots is larger than the number of the preset slots, the DOA shaping range is limited, for example, a preset vertical angle VDOA (VDOA) is set Limit ) When the current VDOA of the terminal is greater than or equal to the VDOA Limit If the VDOA is not limited, the real-time calculation of the VDOA and the HDOA is directly used for shaping; when the calculated VDOA is smaller than the preset vertical angle VDOA, the beam forming between the first base station and the terminal is fixed by using the VDOA Limit And the method carries out beamforming, reduces the interference of a beam side lobe of the first base station to the second base station by controlling the angle in the vertical direction of beamforming, directly controls the beam range, and has simple steps for the beamforming process. If the number of the interference time slots is not greater than the number of the preset time slots, the interference is suppressed by limiting the scheduling of part of the time slots, and compared with the implementation mode of limiting the angle, the mode directly eliminates the interference generated by the side lobe by scheduling only the time slots meeting the condition, and the interference suppression effect is more obvious. In addition, the corresponding relation between each angle and the weight value can be prestored, and when the current VDOA of the terminal is more than or equal to the VDOA Limit If the VDOA is not limited, the real-time calculation of the weight values corresponding to the VDOA and the HDOA is directly used for forming; when the calculated VDOA is smaller than the preset vertical angle VDOA, the VDOA is used for beam forming fixation between the first base station and the terminal Limit And the corresponding weight is shaped. When the device is used, the weight corresponding to the angle can be obtained by looking up a table.
In one example, after the beamforming between the first base station and the terminal adopts the preset angle of the VDOA, the method further includes: and correcting the SINR (signal to interference plus noise ratio) of the service executed during the beamforming according to the angle difference between the preset VDOA and the acquired VDOA. Specifically, when the vertical angle in the information interaction process is limited to the preset VDOA, an error may exist in part of service data in the information interaction process because beamforming is not performed using the angle position relationship between the first base station and the terminal obtained through actual calculation. Therefore, in the process of beamforming according to the preset VDOA, the service in the information interaction process needs to be corrected, for example, the first base station notifies the terminal to perform inner-loop SINR correction on the service scheduling of the current time slot, or the first base station performs inner-loop SINR correction on the service scheduling of the current time slot, where the correction value is related to the difference between the calculated VDOA and the preset VDOA. After the correction is performed, the information interaction quality between the first base station and the terminal can be improved.
In one example, the scheduling only the time slots satisfying the preset condition includes: scheduling only slots not identified in the interference bitmap; and obtaining the interference bitmap according to the frame structure of the first base station, the frame structure of the second base station and the interference time slot. Namely, the interference bitmap is adopted to determine the time slots which are normally scheduled and not scheduled under the condition that the acquired VDOA is smaller than the preset VDOA and the number of the interference time slots is not larger than the number of the preset time slots, so that the time slot scheduling is more convenient for management and user perception, the effect of interference suppression is ensured, and the influence on the original communication process is reduced.
In one example, the interference bitmap is derived from the frame structure and the GNSS clock, and includes: establishing an initial bitmap, wherein the bit number of the initial bitmap is determined by the maximum time slot number in the frame structure of the first base station and the frame structure of the second base station; and setting an identifier for a bit corresponding to the position of the interference time slot in the initial interference bit map to obtain the interference bit map. Specifically, the maximum number of time slots in the first base station and the second base station is determined, where the maximum number of time slots is the number of bits of the initial interference bitmap, and after the initial bit bitmap is obtained, the initial bit bitmap is identified according to the positions of the interference time slots, that is, the positions of the interference time slots are identified in the initial bit bitmap, so as to obtain the interference bitmap. That is, the position identified in the interference bitmap is an interference timeslot, and only the unidentified timeslot is scheduled, that is, no information transmission is performed during the interference timeslot, so as to reduce the interference between the first base station and the second base station. For example, the interference bitmap determination method: calculating the offset configuration of the frame head of the ATG base station and the NR base station according to the frame head offset relative to the GNSS clock, determining a time slot set of collision (namely simultaneous operation) of a downlink time slot of the ATG base station and an uplink time slot of the NR base station, and if the collision position occurs, setting a flag bit at the bit position of the time slot, otherwise, not setting the flag bit; the number of bits takes the maximum value of the time slots of the frame structure of the ATG station and the NR station.
In this embodiment, the vertical angle VDOA of the interference time slot and the direction of arrival DOA is obtained, and if the obtained VDOA sum is lower than the preset VDOA, the interference condition between the first base station and the second base station can be improved to a great extent by adopting a corresponding adjustment method under different conditions according to the number relationship between the interference time slot and the preset time slot.
The embodiment provides an interference suppression method for the interference of an ATG base station to an NR base station, when a beam forming method is adopted for the downlink of the ATG base station, the interference is suppressed through a flexible VDOA forming limit scheduling strategy, and the base station calculates DOA (direction of arrival), namely a horizontal angle HDOA (high-level data arrival) and a vertical angle VDOA (vertical data arrival), pointing to a terminal according to GPS (global positioning system) information reported by the terminal in real time; and confirming an interference bitmap according to the frame structures of the ATG base station and the NR base station, confirming whether to limit VDOA or not according to the number of the interference time slots and the number of the preset interference time slots, or modifying a scheduling time slot to reduce the interference between the ATG base station and the NR base station.
One embodiment of the present invention relates to an interference suppression device, as shown in fig. 4, including:
a first obtaining module 201, configured to obtain a frame structure of a first base station and a frame structure of a second base station;
an interference determining module 202, configured to determine an interference timeslot according to a frame structure of the first base station and a frame structure of the second base station;
an angle obtaining module 203, configured to obtain a vertical angle VDOA of a direction of arrival DOA between the first base station and a terminal;
a matching adjustment module 204, configured to, when the obtained VDOA is smaller than a preset VDOA, execute a corresponding interference suppression measure according to a relationship between the number of the interference slots and the number of preset slots; and presetting corresponding interference suppression measures according to the relation between the number of the interference time slots and the number of the preset time slots.
For the first obtaining module 201, in an example, the first base station is an air-ground communication ATG base station, and the second base station is a new air-interface NR base station.
For the interference determining module 202, in an example, the determining an interference timeslot according to the frame structure of the first base station and the frame structure of the second base station includes: respectively obtaining the frame structure of the first base station and the offset value of the frame structure of the second base station according to a Global Navigation Satellite System (GNSS) clock; determining the interference time slot according to the offset value, the frame structure of the first base station and the frame structure of the second base station; and the frame structure of the first base station in the interference time slot is a downlink time slot, and the frame structure of the second base station is an uplink time slot.
For the matching adjustment module 204, in an example, according to the relationship between the number of the interference timeslots and the number of the preset timeslots, corresponding interference suppression measures are performed, for example: under the condition that the number of the interference time slots is larger than the number of the preset time slots, the angle of the preset VDOA is adopted for beamforming between the first base station and the terminal; under the condition that the number of the interference time slots is not more than the number of the preset time slots, only scheduling the time slots meeting preset conditions; and scheduling the time slot to perform data interaction in the time slot.
In one example, only time slots meeting a preset condition are scheduled, such as: scheduling only slots not identified in the interference bitmap; and obtaining the interference bitmap according to the frame structure of the first base station, the frame structure of the second base station and the interference time slot.
In one example, the interference bitmap is obtained according to a frame structure of the first base station, a frame structure of the second base station, and the interference timeslot, for example: establishing an initial bitmap, wherein the bit number of the initial bitmap is determined by the maximum time slot number in the frame structure of the first base station and the frame structure of the second base station; and setting an identifier for a bit corresponding to the position of the interference time slot in the initial interference bit map to obtain the interference bit map.
In one example, after the beamforming between the first base station and the terminal adopts the preset angle of the VDOA, the method further includes: and correcting the SINR (signal to interference plus noise ratio) of the service executed during the beamforming according to the angle difference between the preset VDOA and the acquired VDOA.
In the embodiment of the application, the vertical angle VDOA of the interference time slot and the direction of arrival DOA is obtained, and if the obtained VDOA sum is lower than the preset VDOA, the interference condition between the first base station and the second base station can be improved to a great extent by adopting a corresponding adjusting method under different conditions according to the quantity relationship between the interference time slot and the preset time slot.
The embodiment provides an interference suppression method for the interference of an ATG base station to an NR base station, when a beam forming method is adopted for the downlink of the ATG base station, the interference is suppressed through a flexible VDOA forming limit scheduling strategy, and the base station calculates DOA (direction of arrival), namely a horizontal angle HDOA (high-level data arrival) and a vertical angle VDOA (vertical data arrival), pointing to a terminal according to GPS (global positioning system) information reported by the terminal in real time; and confirming an interference bitmap according to the frame structures of the ATG base station and the NR base station, confirming whether to limit VDOA or not according to the number of the interference time slots and the number of the preset interference time slots, or modifying a scheduling time slot to reduce the interference between the ATG base station and the NR base station.
It should be understood that this embodiment is an apparatus embodiment corresponding to the above method embodiment, and this embodiment can be implemented in cooperation with the above method embodiment. The related technical details and technical effects mentioned in the above embodiments are still valid in this embodiment, and are not described herein again in order to reduce repetition. Accordingly, the related-art details mentioned in the present embodiment can also be applied to the above-described embodiments.
It should be noted that, all the modules involved in this embodiment are logic modules, and in practical application, one logic unit may be one physical unit, may also be a part of one physical unit, and may also be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, a unit which is not so closely related to solve the technical problem proposed by the present invention is not introduced in the present embodiment, but this does not indicate that there is no other unit in the present embodiment.
Another embodiment of the present invention relates to a base station, as shown in fig. 5, including: at least one processor 301; and a memory 302 communicatively coupled to the at least one processor 301; the memory 302 stores instructions executable by the at least one processor 301, and the instructions are executed by the at least one processor 301, so that the at least one processor 301 can execute the scheduling method in the foregoing embodiments.
Where the memory and processor are connected by a bus, the bus may comprise any number of interconnected buses and bridges, the buses connecting together one or more of the various circuits of the processor and the memory. The bus may also connect various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor is transmitted over a wireless medium via an antenna, which further receives the data and transmits the data to the processor.
The processor is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And the memory may be used to store data used by the processor in performing operations.
Another embodiment of the present invention relates to a computer-readable storage medium storing a computer program. The computer program realizes the above-described method embodiments when executed by a processor.
That is, as can be understood by those skilled in the art, all or part of the steps in the method for implementing the embodiments described above may be implemented by a program instructing related hardware, where the program is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.

Claims (10)

1. An interference suppression method applied to a first base station includes:
acquiring a frame structure of a first base station and a frame structure of a second base station;
determining an interference time slot according to the frame structure of the first base station and the frame structure of the second base station;
acquiring a vertical angle VDOA of a DOA between the first base station and the terminal;
under the condition that the obtained VDOA is smaller than the preset VDOA, executing corresponding interference suppression measures according to the relation between the number of the interference time slots and the number of the preset time slots; and the relation between the number of the interference time slots and the number of the preset time slots is preset with corresponding interference suppression measures.
2. The interference suppression method according to claim 1, wherein said performing corresponding interference suppression measures according to the relationship between the number of the interference timeslots and the number of the preset timeslots comprises:
under the condition that the number of the interference time slots is greater than the number of the preset time slots, the beamforming between the first base station and the terminal adopts the angle of the preset VDOA;
under the condition that the number of the interference time slots is not more than the number of the preset time slots, only scheduling the time slots meeting preset conditions; and scheduling the time slot to perform data interaction in the time slot.
3. The method according to claim 2, wherein said scheduling only the time slots satisfying the preset condition comprises:
scheduling only slots not identified in the interference bitmap; and obtaining the interference bitmap according to the frame structure of the first base station, the frame structure of the second base station and the interference time slot.
4. The interference suppression method according to claim 3, wherein the obtaining the interference bitmap according to the frame structure of the first base station, the frame structure of the second base station and the interference slot comprises:
establishing an initial bitmap, wherein the bit number of the initial bitmap is determined by the maximum time slot number in the frame structure of the first base station and the frame structure of the second base station;
and setting an identifier for a bit corresponding to the position of the interference time slot in the initial interference bit bitmap to obtain the interference bit bitmap.
5. The interference suppression method according to claim 2, wherein after the beamforming between the first base station and the terminal adopts the preset angle of VDOA, the method further comprises:
and correcting the SINR (signal to interference plus noise ratio) of the service executed during the beamforming according to the angle difference between the preset VDOA and the acquired VDOA.
6. The interference suppression method according to claim 1, wherein said determining an interference slot according to the frame structure of the first base station and the frame structure of the second base station comprises:
respectively obtaining the frame structure of the first base station and the offset value of the frame structure of the second base station according to a Global Navigation Satellite System (GNSS) clock;
determining the interference time slot according to the offset value, the frame structure of the first base station and the frame structure of the second base station; and the frame structure of the first base station in the interference time slot is a downlink time slot, and the frame structure of the second base station is an uplink time slot.
7. The interference suppression method according to any one of claims 1 to 6, wherein the first base station is an air-ground communication (ATG) base station;
and the second base station is a new air interface NR base station.
8. An interference suppression apparatus, comprising:
the first acquisition module is used for acquiring a frame structure of a first base station and a frame structure of a second base station;
an interference determining module, configured to determine an interference timeslot according to a frame structure of the first base station and a frame structure of the second base station;
an angle obtaining module, configured to obtain a vertical angle VDOA of a direction of arrival DOA between the first base station and the terminal;
the matching adjusting module is used for executing corresponding interference suppression measures according to the relation between the number of the interference time slots and the number of the preset time slots under the condition that the obtained VDOA is smaller than the preset VDOA; and presetting corresponding interference suppression measures according to the relation between the number of the interference time slots and the number of the preset time slots.
9. A base station, comprising:
at least one processor; and (c) a second step of,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the interference mitigation method of any one of claims 1 to 7.
10. A computer-readable storage medium, storing a computer program, wherein the computer program, when executed by a processor, implements the interference suppression method of any one of claims 1 to 7.
CN202111138416.6A 2021-09-27 2021-09-27 Interference suppression method, device, base station and storage medium Pending CN115884381A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202111138416.6A CN115884381A (en) 2021-09-27 2021-09-27 Interference suppression method, device, base station and storage medium
PCT/CN2022/119098 WO2023045828A1 (en) 2021-09-27 2022-09-15 Interference suppression method and apparatus, and base station and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111138416.6A CN115884381A (en) 2021-09-27 2021-09-27 Interference suppression method, device, base station and storage medium

Publications (1)

Publication Number Publication Date
CN115884381A true CN115884381A (en) 2023-03-31

Family

ID=85720049

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111138416.6A Pending CN115884381A (en) 2021-09-27 2021-09-27 Interference suppression method, device, base station and storage medium

Country Status (2)

Country Link
CN (1) CN115884381A (en)
WO (1) WO2023045828A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1453337A1 (en) * 2003-02-27 2004-09-01 Siemens Mobile Communications S.p.A. Radio resource management method in cellular telephone networks based on interference reduction timeslot allocation and adaptive antenna array
US10348394B1 (en) * 2014-03-14 2019-07-09 Tarana Wireless, Inc. System architecture and method for enhancing wireless networks with mini-satellites and pseudollites and adaptive antenna processing
US20170272131A1 (en) * 2016-03-16 2017-09-21 Google Inc. Interference Mitigation Systems in High Altitude Platform Overlaid With a Terrestrial Network
US11843447B2 (en) * 2019-01-08 2023-12-12 Aero5G, Inc. Interference coordination for 5G flight communication
CN111866942B (en) * 2019-04-30 2022-09-02 华为技术有限公司 Communication method and communication device

Also Published As

Publication number Publication date
WO2023045828A1 (en) 2023-03-30

Similar Documents

Publication Publication Date Title
US10547373B2 (en) Wireless communication links between airborne and ground-based communications equipment
US11956684B2 (en) Handover analysis for a moving vehicle
US20210266859A1 (en) Positioning method and device
US8306572B2 (en) Communication control method, communication system and communication control apparatus
CN113169794B (en) Global navigation satellite system assisted aircraft wireless communication
KR101822369B1 (en) High-capacity hybrid terrestrial/satellite cellular radio communication system
WO2019010213A1 (en) Dynamic antenna platform offset calibration
US20030181163A1 (en) Radio resources allocating method, radio resources allocating apparatus, and mobile communication system
WO2021114828A1 (en) Airway communication method and system, computer-readable storage medium, and electronic device
CN113972922A (en) Interference suppression method and device for air-ground communication
GB2582284A (en) Frequency adjustment within a wireless communication system for a moving vehicle
CN115580338A (en) Power control method, device, equipment and storage medium
EP3616372B1 (en) Base transceiver station interference cancellation for reuse of terrestrial carrier in air-to-ground communication
CN113068219B (en) Uplink resource allocation method, device, base station and storage medium
Kim et al. Beam management for 5G satellite systems based on NR
CN115884381A (en) Interference suppression method, device, base station and storage medium
CN114128313A (en) Communication method, device, equipment, system and storage medium
CN113556189B (en) Antenna adjusting method and device for unmanned aerial vehicle
WO2023236545A1 (en) Interference suppression method and apparatus, storage medium, and electronic apparatus
WO2023113681A1 (en) Methods for supporting coexistence in the presence of non-terrestrial networks
KR20240041615A (en) Method for cellular-based aircraft communication and apparatus and system therefor
KR20230007035A (en) Beam management method and appratus for aerial vehicles

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication