Method for locating atmospheric duct interference, base station and computer readable storage medium

Abstract

The method for positioning atmospheric duct interference provided by the embodiment of the present application comprises the following steps: obtaining a characteristic sequence corresponding to a standard bandwidth; determining a target characteristic sequence matched with an actual bandwidth of a serving cell according to the characteristic sequence, and sending the target characteristic sequence; receiving the target characteristic sequence, and determining the serving cell sending the target characteristic sequence according to the target characteristic sequence; and obtaining, by the serving cell, a characteristic sequence corresponding to a standard bandwidth length, and then obtaining, according to the characteristic sequence, a target characteristic sequence matched with an actual bandwidth of the serving cell. The method solves the problem that the bandwidths of the serving cells on the same frequency band cannot be completely aligned, the complexity of characteristic sequence detection is high, the amount of calculation is large, and thus the atmospheric duct positioning function cannot be used, thereby reducing the amount of calculation of characteristic sequence detection and improving user experience.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to but is not limited to the technical field of communication, in particular, to but is not limited to a method for positioning atmospheric duct interference, a base station and a computer readable storage medium. BACKGROUND

[0002] TDD-LTE (Time Division Duplexing-long Term Evolution) is one of two standard modes of current 4G, and the characteristics of TDD-LTE are that the same frequency spectrum is shared by uplink and downlink, time division multiplexing is adopted to transmit uplink and downlink information, and a S subframe is used to isolate the downlink (D subframe) and the uplink (U subframe), wherein a guard period (GP) is used to prevent the time delay caused by long-distance transmission from causing the downlink interference of a remote station to the uplink subframe of a local station, thereby causing the demodulation performance to decrease; under certain weather conditions, the propagation trajectory of the electromagnetic wave propagating in the atmospheric boundary layer, especially in the near-surface layer, is bent to the ground due to the influence of atmospheric refraction, and when the curvature exceeds the curvature of the earth's surface, part of the electromagnetic wave will be trapped in a certain thickness of the atmospheric thin layer, just like the electromagnetic wave propagating in the metal waveguide, and this phenomenon is called atmospheric duct propagation of electromagnetic wave.

[0003] And under certain weather conditions, the atmospheric duct phenomenon can make the TDD-LTE downlink wireless signal propagate very far, and since the propagation distance exceeds the protection distance of the TDD-LTE uplink and downlink protection time slot, the remote TDD-LTE downlink wireless signal interferes with the local TDD-LTE uplink wireless signal.

[0004] For atmospheric duct interference, the coping schemes include detection, mitigation and avoidance, and the theoretical premise of the avoidance scheme is that the interference between the remote base station and the near-end base station is mutual when the atmospheric duct interference occurs, that is, the uplink of the remote base station is also interfered by the downlink of the near-end base station, so the downlink of the interfering station can send a characteristic sequence containing the station information, and the uplink of the interfered station can uniquely identify the interfering station by detecting the characteristic sequence, and in the related art, the detection complexity of the characteristic sequence is high, and the operation amount is large, thereby causing the atmospheric duct positioning function to be unable to be used. SUMMARY

[0005] The method for positioning atmospheric duct interference provided by the embodiment of the present application mainly solves the technical problem that the detection complexity of the characteristic sequence is high, and the operation amount is large, thereby causing the atmospheric duct positioning function to be unable to be used.

[0006] To solve the above technical problem, the embodiment of the present application provides a method for positioning atmospheric duct interference, comprising:

[0007] Obtaining a feature sequence corresponding to a standard bandwidth;

[0008] According to the feature sequence, determining a target feature sequence matched with an actual bandwidth of a serving cell, and transmitting the target feature sequence.

[0009] The embodiment of the present application provides another method for positioning atmospheric waveguide interference, comprising:

[0010] Receiving a target feature sequence, and according to the target feature sequence, determining a serving cell transmitting the target feature sequence;

[0011] The target feature sequence is obtained by the serving cell from a feature sequence corresponding to a standard bandwidth length, and the target feature sequence matched with the actual bandwidth of the serving cell is obtained according to the feature sequence.

[0012] The embodiment of the present application also provides a base station, comprising a processor, a memory and a communication bus.

[0013] The communication bus is used for realizing the connection communication between the processor and the memory.

[0014] The processor is used for executing one or more programs stored in the memory, so as to realize the steps of the method for positioning atmospheric waveguide interference.

[0015] The embodiment of the present application also provides a computer storage medium, wherein the computer readable storage medium stores one or more programs, and the one or more programs can be executed by one or more processors, so as to realize the steps of the method for positioning atmospheric waveguide interference.

[0016] The present application has the following beneficial effects:

[0017] According to the method for positioning atmospheric waveguide interference provided by the embodiment of the present application, the feature sequence corresponding to the standard bandwidth is obtained, the target feature sequence matched with the actual bandwidth of the serving cell is determined according to the feature sequence, and the target feature sequence is transmitted; the target feature sequence is obtained by the serving cell from the feature sequence corresponding to the standard bandwidth length, and the target feature sequence matched with the actual bandwidth of the serving cell is obtained according to the feature sequence, so that the problem that the bandwidths of the serving cells on the same frequency band cannot be completely aligned, the complexity of the feature sequence detection is high, the operation amount is large, and the atmospheric waveguide positioning function cannot be used is solved, the operation amount of the feature sequence detection is reduced, and the user experience is improved.

[0018] Other features and corresponding beneficial effects of the present application are described in the latter part of the specification, and it should be understood that at least part of the beneficial effects is obvious from the description of the present application in the specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the basic flow of a method for locating atmospheric duct interference according to the first embodiment of the present invention;

[0020] Figure 2 This is a basic configuration diagram of the site networking configuration according to the first embodiment of the present invention;

[0021] Figure 3 This is a basic schematic diagram of a characteristic sequence sending position in a method for locating atmospheric waveguide interference according to embodiment 1 of the present invention;

[0022] Figure 4 This is a basic flow chart of another method for locating atmospheric duct interference according to the first embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the basic flow of another method for locating atmospheric duct interference according to the second embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the basic structure of a base station according to the third embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the following is a further detailed description of the embodiments of the present invention through specific implementation methods in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] Example 1:

[0027] This is to address the problem in related technologies where the bandwidths of various serving cells on the same frequency band cannot be fully aligned, resulting in high complexity and computational complexity in signature sequence detection, which in turn makes it impossible to use the atmospheric waveguide positioning function.

[0028] The embodiment of the present invention proposes a method for locating atmospheric waveguide interference implemented by a base station side, see Figure 1 , the method for locating atmospheric duct interference includes:

[0029] S101, obtaining a characteristic sequence corresponding to a standard bandwidth;

[0030] In the embodiment of the present invention, the serving cell as the transmitting end obtains the characteristic sequence corresponding to the standard bandwidth. In the case of 30M effective spectrum, the general site network configuration is as follows: Figure 2As shown, there are three configuration modes of A, B, C, that is, 10M, 15M, 20M service cell mixed in the spectrum, that is, the service cell includes but is not limited to any one of the following bandwidth service cell: 10M bandwidth service cell, 15M bandwidth service cell, 20M bandwidth service cell; wherein the standard bandwidth is a pre-set bandwidth standard, and the subsequent characteristic sequence is obtained in the standard bandwidth; in the embodiment of the application, the standard bandwidth is 10M bandwidth, that is, the characteristic sequence uniformly adopts 10M bandwidth corresponding point number; specifically, for example, when the actual bandwidth of the service cell of the sending end is 20M, the characteristic sequence of 10M bandwidth corresponding point number is also obtained; when the actual bandwidth of the service cell of the sending end is 15M, the characteristic sequence of 10M bandwidth corresponding point number is also obtained; when the actual bandwidth of the service cell of the sending end is 10M, the characteristic sequence of 10M bandwidth corresponding point number is also obtained. It should be understood that one service cell corresponds to one TDD-LTE base station.

[0031] S102, determining a target characteristic sequence matching the actual bandwidth of the service cell according to the characteristic sequence, and sending the target characteristic sequence.

[0032] In the embodiment of the application, the target characteristic sequence matching the actual bandwidth of the service cell is determined according to the characteristic sequence, and the target characteristic sequence is sent, including: when the point number of the characteristic sequence is consistent with the point number of the characteristic sequence corresponding to the length of the actual bandwidth of the service cell, the characteristic sequence is taken as the target characteristic sequence, and the target characteristic sequence is sent. Specifically, for example, when the actual bandwidth of the service cell of the sending end is 10M, the characteristic sequence of 10M bandwidth corresponding point number is obtained, that is, 512-point characteristic sequence, and it is judged that the point number of the characteristic sequence is consistent with the 512-point characteristic sequence corresponding to the length of the actual bandwidth of the service cell of the sending end, then the characteristic sequence is taken as the target sequence characteristic, and the target sequence characteristic is sent.

[0033] In the embodiment of the present application, the target feature sequence is transmitted according to the determination of the target feature sequence matching the actual bandwidth of the serving cell, and the transmitting of the target feature sequence comprises: when the number of points of the feature sequence is inconsistent with the number of points of the feature sequence corresponding to the length of the actual bandwidth of the serving cell, the obtained feature sequence is supplemented to obtain the target feature sequence, and the number of points of the target feature sequence is consistent with the number of points of the feature sequence corresponding to the length of the actual bandwidth of the serving cell; the target feature sequence is transmitted; specifically, for example, when the actual bandwidth of the serving cell of the transmitting end is 15M in the 30M effective spectrum, the feature sequence corresponding to the number of points of 10M bandwidth, i.e. 512 points, is obtained, and when it is determined that the number of points of the feature sequence is inconsistent with the number of points 768 of the feature sequence corresponding to the length of the actual bandwidth of the serving cell of the transmitting end, the feature sequence is supplemented with 0 in the frequency domain, and FFT (fast Fourier transform) is performed to the length of 15M, i.e. the target sequence feature is obtained after FFT is performed to 768, and the target sequence feature is transmitted; or for example, when the actual bandwidth of the serving cell of the transmitting end is 20M, the feature sequence corresponding to the number of points of 10M bandwidth is obtained, and when it is determined that the number of points of the feature sequence is inconsistent with the number of points 1024 of the feature sequence corresponding to the length of the actual bandwidth of the serving cell of the transmitting end, the feature sequence is supplemented with 0 in the frequency domain, and the feature sequence is supplemented to 1024 points by FFT, so as to be consistent with the number of points of the feature sequence corresponding to the length of the actual bandwidth of the serving cell, i.e. the target sequence feature is obtained after the feature sequence corresponding to the number of points 1024 of the feature sequence corresponding to the length of 20M is obtained, and the target sequence feature is transmitted.

[0034] In the embodiment of the present application, the target feature sequence is obtained by supplementing the feature sequence, and the supplementing of the feature sequence comprises: the position of the serving cell in the frequency band is determined according to the cell identifier carried by the feature sequence, and when the serving cell is located at the high-frequency position of the frequency band, the target feature sequence is obtained by supplementing the front end of the feature sequence in the frequency domain; specifically, for example, when the actual bandwidth of the serving cell of the transmitting end is 15M in the 30M effective spectrum, the feature sequence corresponding to the number of points of 10M bandwidth is obtained, and when it is determined that the number of points of the feature sequence is inconsistent with the number of points of the feature sequence corresponding to the length of the actual bandwidth of the serving cell of the transmitting end, and the serving cell of the transmitting end is located at the high-frequency position of the spectrum, the feature sequence is supplemented with 0 at the front end of the feature sequence in the frequency domain, and the target sequence feature is obtained after FFT is performed to the number of points of the feature sequence corresponding to the bandwidth of 15M, so that the number of points of the target sequence feature is consistent with the number of points of the feature sequence corresponding to the actual bandwidth of the serving cell of the transmitting end.

[0035] In the embodiment of the present application, the supplementary processing is performed on the feature sequence to obtain the target feature sequence, which comprises: determining the position of the serving cell in the frequency band according to the cell identifier carried by the feature sequence, and when the serving cell is located at the low frequency position of the frequency band, performing supplementary processing at the rear end of the feature sequence to obtain the target feature sequence; specifically, for example, in the 30M effective frequency spectrum, when the actual bandwidth of the serving cell of the sending end is 15M, after the feature sequence corresponding to the point number of 10M bandwidth is obtained, it is determined that the point number of the feature sequence is inconsistent with the point number of the feature sequence corresponding to the actual bandwidth of the serving cell of the sending end, and the serving cell of the sending end is located at the low frequency position of the frequency spectrum; then 0 is supplemented at the rear end of the feature sequence in the frequency domain, and the feature sequence corresponding to the 15M bandwidth after FFT is taken to the point number is taken as the target sequence feature, so that the point number of the target sequence feature is consistent with the point number of the feature sequence corresponding to the length of the actual bandwidth of the serving cell of the sending end.

[0036] After the above-mentioned method for positioning atmospheric waveguide interference is executed in the embodiment of the present application, no matter the actual bandwidth of the serving cell of the sending end, the target feature sequence will only be sent at the high 10M or low 10M position of the frequency band, for example, in the 30M frequency spectrum, after the above-mentioned method for positioning atmospheric waveguide interference is executed by the serving cell of the sending end, the target feature sequence will only be sent at the high 10M or low 10M position of the frequency band, as shown in FIG. 2. Figure 3

[0037] The embodiment of the present application also provides a method for positioning atmospheric waveguide interference implemented by another base station side, as shown in FIG. 3, the method for positioning atmospheric waveguide interference comprises the following steps: Figure 4

[0038] S201, receiving a target feature sequence;

[0039] In the embodiment of the present application, the serving cell of the receiving end receives the target feature sequence, wherein the target feature sequence is obtained by the serving cell after the feature sequence corresponding to the length of the standard bandwidth is obtained, and the target feature sequence matched with the actual bandwidth of the serving cell is obtained according to the feature sequence.

[0040] S202, determining the serving cell sending the target feature sequence according to the target feature sequence;

[0041] In the embodiment of the present application, the serving cell sending the target feature sequence is determined according to the target feature sequence, which comprises: determining that the wideband of the serving cell is located at the high frequency position or the low frequency position in the frequency band according to the cell identifier carried in the target feature sequence.

[0042] ​​In the embodiment of the present application, the target feature sequence matched with the actual bandwidth of the serving cell is obtained according to the feature sequence, and the target feature sequence is obtained by supplementing the feature sequence when the number of points of the feature sequence does not correspond to the number of points of the feature sequence corresponding to the length of the actual bandwidth of the serving cell, and the number of points of the target feature sequence corresponds to the number of points of the feature sequence corresponding to the length of the actual bandwidth of the serving cell.

[0043] It should be understood that the method for positioning the atmospheric duct interference in the embodiment of the present application is not limited to the 30M effective frequency bandwidth, and the method can be applied to other bandwidths, and only the constraint that the frequency band of the serving cell must be configured at the serving cell of the effective frequency band boundary of the operator is required to open the atmospheric duct feature sequence detection and transmission function. Through the constraint, the frequency band planning of the serving cells in the whole network is performed to support the atmospheric duct positioning function under the mixed bandwidth configuration.

[0044] The method for positioning the atmospheric duct interference provided in the embodiment of the present application obtains the feature sequence corresponding to the standard bandwidth, determines the target feature sequence matched with the actual bandwidth of the serving cell according to the feature sequence, and transmits the target feature sequence. The target feature sequence is determined according to the target feature sequence received by the serving cell, and the serving cell transmitting the target feature sequence is determined according to the target feature sequence. The target feature sequence is obtained according to the feature sequence corresponding to the length of the standard bandwidth of the serving cell, and the target feature sequence matched with the actual bandwidth of the serving cell is obtained according to the feature sequence, which solves the problem that the bandwidths of the serving cells in the same frequency band cannot be completely aligned, the feature sequence detection complexity is high, the calculation amount is large, and the atmospheric duct positioning function cannot be used, thereby reducing the calculation amount of the feature sequence detection. At the same time, the serving cell of the transmitting end transmits the target feature sequence only at the high 10M and low 10M positions of the frequency band, and the serving cell of the receiving end does not need to judge the type of the serving cell of the transmitting end corresponding to the received target feature sequence, and only one method is used for detection, thereby reducing the calculation amount of the feature sequence detection.

[0045] Embodiment two:

[0046] In order to better understand the present application, the present application provides a more specific example to explain the conference control method, as shown in Figure 5 The method for positioning the atmospheric duct interference includes:

[0047] S501, the serving cell of the transmitting end determines the target feature sequence matched with the actual bandwidth of the serving cell according to the feature sequence corresponding to the obtained standard bandwidth.

[0048] In the embodiment of the present application, according to the target feature sequence matching the actual bandwidth of the serving cell, specifically, for example, in the 30M effective spectrum, when the actual bandwidth of the serving cell of the sending end is 15M, after the feature sequence corresponding to the 10M bandwidth is obtained, it is determined that the point number of the feature sequence is inconsistent with the point number of the feature sequence corresponding to the length of the actual bandwidth of the serving cell of the sending end, and the serving cell of the sending end is located in the low frequency position in the spectrum, then 0 is supplemented at the rear end of the feature sequence in the frequency domain, and after FFT is performed to the point number of the feature sequence corresponding to the length of 15M, the target sequence feature is obtained, so that the point number of the target sequence feature is consistent with the point number of the feature sequence corresponding to the length of the actual bandwidth of the serving cell of the sending end.

[0049] S502, the serving cell of the sending end sends the target sequence feature;

[0050] In the embodiment of the present application, after the target sequence feature is obtained, the low 10M position of the serving cell of the sending end is sent.

[0051] S503, the serving cell of the receiving end receives the target sequence feature;

[0052] In the embodiment of the present application, the serving cell of the receiving end receives the target sequence feature, wherein the target sequence feature is obtained by the serving cell according to the target sequence feature matching the actual bandwidth of the serving cell obtained from the feature sequence corresponding to the length of the standard bandwidth.

[0053] S504, the serving cell of the receiving end positions the serving cell sending the target sequence feature according to the target sequence feature;

[0054] In the embodiment of the present application, positioning the serving cell sending the target sequence feature according to the target sequence feature includes: positioning the wideband of the serving cell in the high frequency position or the low frequency position in the frequency band according to the cell identifier carried in the target sequence feature.

[0055] In the embodiment of the present application, the target sequence feature matching the actual bandwidth of the serving cell obtained from the feature sequence includes: when the point number of the feature sequence is inconsistent with the point number of the feature sequence corresponding to the length of the actual bandwidth of the serving cell, the feature sequence is supplemented to obtain the target sequence feature, and the point number of the target sequence feature is consistent with the point number of the feature sequence corresponding to the length of the actual bandwidth of the serving cell.

[0056] The method for positioning atmospheric waveguide interference provided by the embodiment of the present application, the target characteristic sequence matched with the actual bandwidth of the service cell of the sending end is determined by the sending end according to the characteristic sequence corresponding to the standard bandwidth, and the target sequence characteristic is sent, so that the characteristic sequence is only sent at the high 10M and low 10M positions of the frequency band; so that the service cell of the receiving end does not need to consider the bandwidth type of the service cell of the sending end, and only one method is used for detection, and the operation amount of sequence detection is greatly reduced.

[0057] Embodiment three:

[0058] The embodiment of the present application also provides a base station, referring to Figure 6 As shown in the figure, it comprises a processor 601, a memory 602 and a communication bus 603, wherein:

[0059] The communication bus 603 is used for realizing the connection communication between the processor 601 and the memory 602;

[0060] The processor 601 is used for executing one or more computer programs stored in the memory 602, so as to realize at least one step in the method for positioning atmospheric waveguide interference in the above-mentioned embodiment one and / or embodiment two.

[0061] The embodiment of the present application also provides a computer readable storage medium, which comprises a volatile or non-volatile, removable or non-removable medium implemented in any method or technology for storing information (such as computer readable instructions, data structure, computer program modules or other data). The computer readable storage medium includes but is not limited to RAM (Random Access Memory, Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable read only memory, Electrically Erasable Programmable Read-Only Memory), flash memory or other memory technology, CD-ROM (Compact Disc Read-Only Memory, Compact Disc Read-Only Memory), digital versatile disc (DVD) or other optical disc storage, magnetic box, magnetic tape, magnetic disc storage or other magnetic storage device, or any other medium that can be used to store the desired information and can be accessed by the computer.

[0062] The computer readable storage medium in the embodiment of the present application can be used to store one or more computer programs, and the one or more computer programs stored therein can be executed by the processor to realize at least one step of the method for positioning atmospheric waveguide interference in the above-mentioned embodiment one and / or embodiment two.

[0063] It will be apparent to those skilled in the art that all or some of the steps, functions, procedures, modules and / or units in the methods disclosed above can be implemented by software (which can be written in computer program code), firmware, hardware, or any suitable combination thereof. In hardware implementations, the division between the functional modules / units referred to in the above description does not necessarily correspond to the division of physical components; for example, one physical component can serve multiple functions, or one function or step can be performed by several physical components working in cooperation. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit.

[0064] Moreover, it is publicly known to those skilled in the art that communication media typically embodies computer-readable instructions, data structures, computer program modules or other data in modulated data signals such as carrier waves or other transport mechanisms, and can include any information delivery media. Therefore, the present application is not limited to any particular hardware and software combination.

[0065] The above description is further to the detailed description of the embodiments of the present application in conjunction with specific embodiments, and cannot be deemed to limit the specific implementation of the present application to these descriptions. For those skilled in the art, some simple deductions or replacements can be made without departing from the concept of the present application, and all of these should be deemed to fall within the protection scope of the present application.

Claims

1. A method for locating atmospheric duct interference, comprising: obtaining a feature sequence corresponding to a standard bandwidth; when the number of points of the feature sequence does not match the number of points of a feature sequence corresponding to the length of an actual bandwidth of a serving cell, obtaining a target feature sequence by any one of the following processing and sending the target feature sequence: determining the location of the serving cell in a frequency band according to a cell identifier carried by the feature sequence, and when the serving cell is located at a high frequency position in the frequency band, performing supplementary processing at the front end of the feature sequence; or determining the location of the serving cell in a frequency band according to a cell identifier carried by the feature sequence, and when the serving cell is located at a low frequency position in the frequency band, performing supplementary processing at the rear end of the feature sequence; wherein the number of points of the target feature sequence matches the number of points of a feature sequence corresponding to the length of the actual bandwidth of the serving cell.

2. The method of positioning an atmospheric waveguide disturbance of claim 1, wherein, The method further comprises: when the number of points of the feature sequence matches the number of points of a feature sequence corresponding to the length of the actual bandwidth of the serving cell, taking the feature sequence as a target feature sequence and sending the target feature sequence. 3.A method for locating atmospheric duct interference, comprising: receiving a target feature sequence and determining a serving cell sending the target feature sequence according to the target feature sequence; obtaining a feature sequence corresponding to the length of a standard bandwidth by the serving cell, and determining whether the wideband of the serving cell is located at a high frequency position or a low frequency position in a frequency band according to a cell identifier carried by the target feature sequence.

4. The method of positioning an atmospheric waveguide disturbance of claim 3, wherein, The method further comprises: when the number of points of the feature sequence does not match the number of points of a feature sequence corresponding to the length of the actual bandwidth of the serving cell, performing supplementary processing on the feature sequence to obtain a target feature sequence, and the number of points of the target feature sequence matches the number of points of a feature sequence corresponding to the length of the actual bandwidth of the serving cell.

5. A base station, characterized by The base station comprises a processor, a memory and a communication bus; The communication bus is used to realize the connection communication between the processor and the memory; The processor is used to execute one or more programs stored in the memory to realize the steps of the method for locating atmospheric duct interference according to claim 1 or 2 and / or the method for locating atmospheric duct interference according to claim 3 or 4.

6. A computer-readable storage medium, characterized in that, The computer readable storage medium stores one or more computer programs, which can be executed by one or more processors to realize the steps of the method for locating atmospheric duct interference according to claim 1 or 2 and / or the method for locating atmospheric duct interference according to claim 3 or 4.

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