CN108093426B - Method and equipment for detecting system internal interference - Google Patents
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Abstract
The invention provides a method and equipment for detecting interference in a system. The method for detecting the interference in the system provided by the embodiment of the invention comprises the following steps: the base station detects the interference suffered by the cell, and determines the background noise level of the cell on each resource block according to the interference suffered by the cell; acquiring the probability of scheduling on each resource block of a terminal in a same-system same-frequency adjacent cell of the cell; and judging whether the interference suffered by the cell is the intra-system interference or not according to the background noise level and the scheduled probability. Because the terminal in the same-system same-frequency adjacent cell of a cell causes interference to the cell when being scheduled on each resource block, the probability that the terminal in the same-system same-frequency adjacent cell of the cell is scheduled on each resource block is consistent with the interference on the cell, therefore, the probability that the terminal in the same-system same-frequency adjacent cell of the cell is scheduled on each resource block can be compared with the bottom noise level of the cell on each resource block, and whether the interference on the cell is the intra-system interference or not can be judged.
Description
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for detecting intra-system interference.
Background
With the rapid development of the wireless communication market, especially the outbreak of data traffic in recent years, the requirements for the coverage and capacity of the network are higher and higher. Therefore, operators invest huge amounts of resources, a large number of wireless networks are deployed, the radius of a cell covered by the network is smaller and smaller, and under the condition, the network background noise is raised continuously, and the interference among systems is also more and more serious.
Taking Time Division Long Term Evolution (TD-LTE for short) as an example, as shown in fig. 1, a partial spectrum diagram of chinese Mobile (CM for short), chinese unicom (CU for short), and chinese Telecommunications (CT for short) is shown. As can be seen from the figure, the F-band 1880-1900MHZ frequency of the CM is located at a special position, and exists between a 1800MHZ Digital Cellular System (DCS 1800), a Personal Handy-phone System (PHS), a Code Division Multiple Access 2000 (CDMA 2000), and a Wideband Code Division Multiple Access (W-CDMA), and is interfered by these systems.
In addition, in the existing network, there are some illegal jammers located in the F frequency band, which emit interference signals in the full Time slot to cause significant interference to the uplink of the base station and affect the uplink communication quality of the user, for example, some jammers of the current Time Division Duplex (TDD) system, where the uplink and the downlink are on one frequency, if the uplink and the downlink Time slots are not distinguished, the uplink signals of the base station are interfered by emitting the interference signals in the full Time slot, the uplink bottom noise of the base station is raised, and the uplink communication quality of all users covered by the cell is affected. In addition, some users install repeaters privately, and due to poor radio frequency indexes of the repeaters, the background noise is too high, and the uplink communication quality of the base station is also affected. The above are all extra-system interference.
Meanwhile, there is also interference in the system, taking TD-LTE system as an example, because the number of users in the system increases, and because of the co-frequency networking, the uplink signals of the surrounding cells all interfere with the cell, and after the number of users increases, the overall background noise of the cell increases. Further, there may be a handover situation, that is, the terminal accesses the base station of another cell at the geographic location of the cell, and the base station is further away from the serving cell where the terminal is located, so that the terminal transmits with a larger power, and thus the noise floor of the cell is raised.
The external interference and the internal interference of the system are often generated simultaneously at present, the interference in the system is difficult to judge by superposing the interference together, specific analysis is carried out on whether the generated interference is the internal interference or the external interference, different measures are taken according to the actual situation obtained by analysis to reduce the interference, the communication quality can be improved, and the operation environment of the network is improved.
Disclosure of Invention
The embodiment of the invention provides a method and equipment for detecting interference in a system, which are used for detecting the interference in the system.
The embodiment of the invention provides a method for detecting system internal interference, which comprises the following steps:
detecting interference suffered by a cell;
determining the background noise level of the cell on each resource block according to the interference suffered by the cell;
acquiring the probability that the terminal in the same-system same-frequency adjacent cell of the cell is scheduled on each resource block;
and judging whether the interference suffered by the cell is the intra-system interference or not according to the background noise level of the cell on each resource block and the scheduling probability of the terminal in the same-system same-frequency adjacent cell of the cell on each resource block.
Optionally, after detecting that the cell is interfered, the method further includes: judging whether the interference is larger than a first set threshold value or not;
and if so, determining the background noise level of the cell on each resource block according to the interference suffered by the cell, and acquiring the probability of scheduling the terminal in the same-system same-frequency adjacent cell of the cell on each resource block.
Optionally, the background noise level of the cell on each resource block is represented as a first curve, and the probability that a terminal in a same-system same-frequency neighboring cell of the cell is scheduled on each resource block is represented as a second curve in the same coordinate system;
the determining whether the interference suffered by the cell is intra-system interference includes:
judging whether the similarity of the first curve and the second curve is greater than a second set threshold value or not;
and if so, judging that the interference suffered by the cell is the intra-system interference.
Optionally, the obtaining the probability that the terminal in the same-system same-frequency neighboring cell of the cell is scheduled on each resource block includes:
acquiring the probability of scheduling the terminal in the same-system same-frequency adjacent cell of the cell on each resource block from a network management system; or,
and acquiring a scheduling algorithm of the same-system same-frequency adjacent cells of the cell from a network management system, and determining the probability of scheduling the terminal in the same-system same-frequency adjacent cells of the cell on each resource block according to the scheduling algorithm.
Optionally, the probability that the terminal in the co-system and co-frequency neighboring cell of the cell is scheduled on each resource block is determined according to the scheduling algorithm of the co-system and co-frequency neighboring cell and the cell parameter used by the scheduling algorithm.
The embodiment of the invention provides a device for detecting system internal interference, which comprises:
the detecting unit is used for detecting the interference suffered by the cell;
a determining unit, configured to determine, according to interference received by the cell, a background noise level of the cell on each resource block;
an obtaining unit, configured to obtain a probability that a terminal in a same-system same-frequency neighboring cell of the cell is scheduled on each resource block;
and the judging unit is used for judging whether the interference suffered by the cell is the intra-system interference or not according to the background noise level of the cell on each resource block and the scheduling probability of the terminal in the same-system same-frequency adjacent cell of the cell on each resource block.
Optionally, the determining unit is specifically configured to:
after detecting that the cell is interfered, the detection unit instructs the judgment unit to judge whether the interference is larger than a set threshold value;
and if so, determining the background noise level of the cell on each resource block according to the interference suffered by the cell, and acquiring the probability of scheduling the terminal in the same-system same-frequency adjacent cell of the cell on each resource block.
Optionally, the background noise level of the cell on each resource block is represented as a first curve, and the probability that a terminal in a same-system same-frequency neighboring cell of the cell is scheduled on each resource block is represented as a second curve in the same coordinate system;
the judgment unit is specifically configured to:
judging whether the similarity of the first curve and the second curve is greater than a second set threshold value or not;
and if so, judging that the interference suffered by the cell is the intra-system interference.
Optionally, the obtaining unit is specifically configured to:
acquiring the probability of scheduling the terminal in the same-system same-frequency adjacent cell of the cell on each resource block from a network management system; or,
and acquiring a scheduling algorithm of the terminal in the same-system same-frequency adjacent cell of the cell from a network management system, and determining the probability of scheduling the terminal in the same-system same-frequency adjacent cell of the cell on each resource block according to the scheduling algorithm.
Optionally, the probability that the terminal in the co-system and co-frequency neighboring cell of the cell is scheduled on each resource block is determined according to the scheduling algorithm of the co-system and co-frequency neighboring cell and the cell parameter used by the scheduling algorithm.
In the embodiment of the invention, the base station detects the interference suffered by the cell, and determines the background noise level of the cell on each resource block according to the interference suffered by the cell; acquiring the probability of scheduling on each resource block of a terminal in a same-system same-frequency adjacent cell of the cell; and judging whether the interference received by the cell is the intra-system interference or not according to the background noise level of the cell on each resource block and the scheduling probability of the terminal in the same-system same-frequency adjacent cell of the cell on each resource block. In the embodiment of the invention, the terminal in the same-system same-frequency adjacent cell of one cell can cause interference to the cell when being scheduled on each resource block, so the probability that the terminal in the same-system same-frequency adjacent cell of the cell is scheduled on each resource block is consistent with the probability that the cell is interfered, therefore, the probability that the terminal in the same-system same-frequency adjacent cell of the cell is scheduled on each resource block can be compared with the bottom noise level of the cell on each resource block, whether the interference received by the cell is the intra-system interference or not is judged, and the intra-system interference is further detected.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic diagram of a position of a partial frequency spectrum of a TD-LTE system in the prior art;
FIG. 2 is a diagram of a network architecture suitable for use in embodiments of the present invention;
fig. 3 is a flowchart illustrating a method for detecting intra-system interference according to an embodiment of the present invention;
fig. 4 is a schematic diagram of the probability that a terminal in a cell co-system co-frequency neighboring cell is scheduled on each RB according to an embodiment of the present invention, where the TD-LTE system with 20MHZ is taken as an example;
fig. 5 is a schematic structural diagram of an apparatus for detecting interference in a system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 2 is a schematic diagram of a network architecture applicable to the embodiment of the present invention.
As shown in fig. 2, it can be seen that the cells configured and covered by the base station in the figure are cell 1, cell 2, and cell 3, and the base station may interact with the network management system. Wherein, the cell 1, the cell 2 and the cell 3 are the same frequency cells in the same system. Of course, the same-frequency neighboring cells in the same system of the cell 1 may include cells of neighboring base stations in addition to the cell 2 and the cell 3. The above network architecture is only an example, and the embodiment of the present application has no limitation on the number of cells within the coverage area of one base station.
Referring to fig. 3, a flowchart of a method for detecting uplink interference in a system according to an embodiment of the present invention is shown.
Step 101: the base station detects the interference experienced by the cell.
In this step, the base station may periodically detect the interference suffered by the cell according to a set period; the base station may also detect interference suffered by the cell after receiving an indication from the network management system or another device; the base station may also perform cell interference detection when it detects that the transmission performance is poor (for example, when the packet loss rate is higher than a set threshold). The embodiment of the present invention does not specifically limit when and how the base station detects the interference suffered by the cell.
Step 102: and the base station determines the background noise level of the cell on each resource block according to the interference suffered by the cell.
In this step, the base station determines whether the detected interference value is greater than a set threshold according to the interference received by the cell detected in step 101, and if so, determines the background noise level of the cell on each resource block according to the detected interference value of the cell. Of course, the base station may determine the background noise level of the cell on each resource block according to the detected interference value of the cell without performing the above determination after detecting the interference received by the cell. In specific implementation, the background noise level of the cell on each resource block represents a first curve, the abscissa of the curve is the number of the resource block, and the ordinate of the curve is an interference value used for representing the uplink background noise level, and the unit of the curve may be dBm.
The above threshold is generally set according to the background noise level when the uplink throughput is reduced by 5%, because the background noise is the total noise other than the useful signal and the uplink transmission rate of the terminal in the cell is reduced due to high background noise.
Step 103: the base station obtains the probability that the terminal of the cell in the same-system same-frequency adjacent cell is scheduled on each resource block. Optionally, the probability that the terminal is scheduled on each resource block, that is, the probability that each resource block is used by the terminal for uplink transmission, is determined.
In this step, when the probability that the terminal in the same-system and same-frequency neighboring cell of the cell is scheduled on each resource block is specifically implemented, the probability may be represented as a second curve, and a coordinate system of the second curve is the same as a coordinate system of the first curve. The probability that the base station acquires the terminal in the same-system same-frequency adjacent cell of the cell is scheduled on each resource block can be obtained in two ways:
mode 1: the network management system usually stores scheduling algorithm information (optionally, the scheduling algorithm information may include uplink scheduling algorithm information) adopted by each cell, cell parameters (such as physical cell identifiers, working frequency points, and the like) of each cell, and the network management system may further obtain statistical data (such as the number of users, traffic, and the like) of each cell, so that the network management system may determine, according to the information, the probability that the terminal in each cell is scheduled on each resource block. Therefore, the base station can obtain the probability that the terminal in the same-system same-frequency adjacent cell of the cell is scheduled on each resource block from the network management system.
Mode 2: and the base station acquires information such as a scheduling algorithm of the terminal in the same-system same-frequency adjacent cell of the cell from the network management system, and determines the scheduling probability of the terminal in the same-system same-frequency adjacent cell of the cell on each resource block according to the scheduling algorithm.
The probability that a terminal in a cell is scheduled on each resource block can be determined in the following manner:
mode 1: and acquiring the probability of scheduling the terminal in the cell on each resource block according to the scheduling algorithm of the cell.
The following describes a process of determining the probability that a cell is scheduled on each resource block by way of mode 1, taking a TD-LTE system of 20MHZ as an example.
There are 100 resource blocks (RBs for short) in the Uplink of the 20MHZ TD-LTE system, of the 100 RBs, the first 5 RBs and the last 5 RBs are Physical Uplink Control channels (PUCCH for short), the middle 90 RBs are traffic channels, and if the traffic scheduling algorithm is known, the probability that a terminal in the cell is scheduled on each resource block can be drawn. In the following description, the background noise level of a cell on each RB is represented by a first curve, and the probability that a terminal in a neighboring cell on the same system and frequency of the cell is scheduled on each RB is represented by a second curve on the same coordinate.
Mode 2: and determining the probability of scheduling the terminal in the cell on each resource block according to the scheduling algorithm of the cell and the cell parameters used by the scheduling algorithm.
The following describes the process of determining the probability that a terminal in a cell is scheduled on each resource block by way of mode 2, taking the TD-LTE system of 20MHZ as an example. The cell parameter may include a Physical Cell ID (PCI), and may also include the number of users accessing the cell.
The current scheduling algorithm is as follows: and selecting an RB starting position distribution strategy according to three values of the PCI remainder 3, namely PCI mod 3, wherein the values of the PCI remainder 3 are 0, 1 and 2. For example, when PCI mod 3 is 0, resources are allocated from a low frequency; PCI mod 3 ═ 1, starting to allocate resources from the 33 th RB of the 100 RBs; when PCI mod 3 is 2, resources are allocated from a high frequency. When a large number of terminals are accessed, resources need to be allocated to the terminals, and if the PCI mod 3 value is 1, the resources are allocated to the terminals from the 33 rd RB.
The above RB starting position allocation strategy is only an example, and of course, there may be other allocation strategies, which is not specifically limited in the embodiment of the present invention.
Step 104: and the base station judges whether the interference received by the cell is the intra-system interference or not according to the background noise level of the cell on each resource block and the scheduling probability of the terminal in the same-system same-frequency adjacent cell of the cell on each resource block.
In this step, in a specific implementation, when determining whether the interference received by the cell is intra-system interference, it may be determined whether the interference received by the cell is intra-system interference by determining the first curve and the second curve.
The conventional similarity determination method can be adopted to determine whether the interference suffered by the cell is the intra-system interference, and the conventional similarity determination methods are many. Examples are as follows: subtracting the numerical values on the same RB on the first curve and the second curve, squaring the difference value obtained by subtraction, and then integrating the squared value to obtain a numerical value, wherein the numerical value represents the similarity of the first curve and the second curve, a second set threshold value which is corresponding to the similarity is set according to an empirical value, and if the numerical value which represents the similarity is larger than the second set threshold value, the two curves are more similar. Therefore, if the value obtained by the integration is larger than the second set threshold, the interference suffered by the cell is the intra-system interference, otherwise, the intra-system interference is not the intra-system interference.
Optionally, the sequence of the steps 102 and 103 is not unique, that is, the step 102 may be executed first and then the step 103 is executed, or the step 103 may also be executed first and then the step 102 is executed, which is not limited in this embodiment of the present invention.
In the embodiment of the invention, the base station detects the interference suffered by the cell, and determines the background noise level of the cell on each resource block according to the interference suffered by the cell; acquiring the probability of scheduling on each resource block of a terminal in a same-system same-frequency adjacent cell of the cell; and judging whether the interference received by the cell is the intra-system interference or not according to the background noise level of the cell on each resource block and the scheduling probability of the terminal in the same-system same-frequency adjacent cell of the cell on each resource block. In the embodiment of the invention, the terminal in the same-system same-frequency adjacent cell of the cell can cause interference to the cell when being scheduled on each resource block, so that the scheduling probability of the terminal in the same-system same-frequency adjacent cell of the cell on each resource block is consistent with the interference of the cell, and the scheduling probability of the same-system same-frequency adjacent cell of the cell on each resource block can be compared with the bottom noise level of the cell on each resource block to judge whether the interference received by the cell is the intra-system interference or not, thereby detecting the intra-system interference.
Referring to fig. 4, a schematic diagram of probabilities that terminals in a cell and a system co-frequency neighbor cell are scheduled on RBs, where the cell and the system are, for example, a TD-LTE system with 20MHZ according to an embodiment of the present invention.
A second curve of the probability that the terminal in the co-frequency neighboring cell is scheduled on each RB, which is drawn according to the scheduling algorithm of the terminal in the co-system co-frequency neighboring cell of the cell, is shown in fig. 4, where the abscissa of the curve represents the number of the uplink RB, and since the terminal in the cell indicates that the terminal transmits a signal when being scheduled on each RB, the ordinate represents the transmission signal intensity level of the terminal in the co-system co-frequency neighboring cell of the cell on each RB. It can be seen that, when the uplink RBs are 9, 33, and 94, the uplink background noise level is high, that is, if there is traffic for the terminal in the cell, the resource is allocated from the RBs numbered 9, 33, and 94, so that when the RBs are 9, 33, and 94, the uplink background noise level is high, and a high uplink background noise level indicates a high interference value.
Fig. 5 is a schematic structural diagram of an apparatus for detecting interference in a system according to an embodiment of the present invention.
As shown in fig. 5, the apparatus includes:
a detecting unit 601, configured to detect interference suffered by a cell;
a determining unit 602, configured to determine, according to the interference suffered by the cell, a base noise level of the cell on each resource block;
an obtaining unit 603, configured to obtain a probability that a terminal in a same-system same-frequency neighboring cell of the cell is scheduled on each resource block;
a determining unit 604, configured to determine whether the interference received by the cell is intra-system interference according to the base noise level of the cell on each resource block and the probability that a terminal in a co-system co-frequency neighboring cell of the cell is scheduled on each resource block.
Optionally, the determining unit 604 is specifically configured to:
after detecting that the cell is interfered, the detection unit instructs the judgment unit to judge whether the interference is larger than a set threshold value;
and if so, determining the background noise level of the cell on each resource block according to the interference suffered by the cell, and acquiring the probability of scheduling the terminal in the same-system same-frequency adjacent cell of the cell on each resource block.
Optionally, the background noise level of the cell on each resource block is represented as a first curve, and the probability that a terminal in a same-system same-frequency neighboring cell of the cell is scheduled on each resource block is represented as a second curve in the same coordinate system;
the judgment unit is specifically configured to:
judging whether the similarity of the first curve and the second curve is greater than a set second threshold value or not;
and if so, judging that the interference suffered by the cell is the intra-system interference.
Optionally, the obtaining unit 603 is specifically configured to:
acquiring the probability of scheduling the terminal in the same-system same-frequency adjacent cell of the cell on each resource block from a network management system; or,
and acquiring a scheduling algorithm of the terminal in the same-system same-frequency adjacent cell of the cell from a network management system, and determining the probability of scheduling the terminal in the same-system same-frequency adjacent cell of the cell on each resource block according to the scheduling algorithm.
Optionally, the probability that the terminal in the co-system and co-frequency neighboring cell of the cell is scheduled on each resource block is determined according to the scheduling algorithm of the co-system and co-frequency neighboring cell and the cell parameter used by the scheduling algorithm.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A method for detecting intra-system interference, comprising:
detecting interference suffered by a cell;
determining the background noise level of the cell on each resource block according to the interference suffered by the cell;
acquiring the probability that the terminal in the same-system same-frequency adjacent cell of the cell is scheduled on each resource block; the probability that the terminal in the same-system same-frequency adjacent cell of the cell is scheduled on each resource block is determined according to the scheduling algorithm of the same-frequency adjacent cell and the cell parameter used by the scheduling algorithm;
and judging whether the interference suffered by the cell is the intra-system interference or not according to the background noise level of the cell on each resource block and the scheduling probability of the terminal in the same-system same-frequency adjacent cell of the cell on each resource block.
2. The method of claim 1, wherein detecting that the cell is interfered, further comprises: judging whether the interference is larger than a first set threshold value or not;
and if so, determining the background noise level of the cell on each resource block according to the interference suffered by the cell, and acquiring the probability of scheduling the terminal in the same-system same-frequency adjacent cell of the cell on each resource block.
3. The method of claim 1, wherein the background noise level of the cell on each resource block is represented by a first curve, and the probability that a terminal in a same-system same-frequency neighboring cell of the cell is scheduled on each resource block is represented by a second curve under the same coordinate system;
the determining whether the interference suffered by the cell is intra-system interference includes:
judging whether the similarity of the first curve and the second curve is greater than a second set threshold value or not;
and if so, judging that the interference suffered by the cell is the intra-system interference.
4. The method of claim 1, wherein the obtaining the probability that the terminal in the same-system same-frequency neighbor cell of the cell is scheduled on each resource block comprises:
acquiring the probability of scheduling the terminal in the same-system same-frequency adjacent cell of the cell on each resource block from a network management system; or,
and acquiring a scheduling algorithm of the same-system same-frequency adjacent cells of the cell from a network management system, and determining the probability of scheduling the terminal in the same-system same-frequency adjacent cells of the cell on each resource block according to the scheduling algorithm.
5. An apparatus for detecting intra-system interference, comprising:
the detecting unit is used for detecting the interference suffered by the cell;
a determining unit, configured to determine, according to interference received by the cell, a background noise level of the cell on each resource block;
an obtaining unit, configured to obtain a probability that a terminal in a same-system same-frequency neighboring cell of the cell is scheduled on each resource block; the probability that the terminal in the same-system same-frequency adjacent cell of the cell is scheduled on each resource block is determined according to the scheduling algorithm of the same-frequency adjacent cell and the cell parameter used by the scheduling algorithm;
and the judging unit is used for judging whether the interference suffered by the cell is the intra-system interference or not according to the background noise level of the cell on each resource block and the scheduling probability of the terminal in the same-system same-frequency adjacent cell of the cell on each resource block.
6. The device according to claim 5, wherein the determining unit is specifically configured to:
after detecting that the cell is interfered, the detection unit instructs the judgment unit to judge whether the interference is larger than a set threshold value;
and if so, determining the background noise level of the cell on each resource block according to the interference suffered by the cell, and acquiring the probability of scheduling the terminal in the same-system same-frequency adjacent cell of the cell on each resource block.
7. The apparatus of claim 5, wherein the background noise level of the cell on each resource block is represented by a first curve, and the probability that a terminal in a same-system same-frequency neighbor cell of the cell is scheduled on each resource block is represented by a second curve under the same coordinate system;
the judgment unit is specifically configured to:
judging whether the similarity of the first curve and the second curve is greater than a second set threshold value or not;
and if so, judging that the interference suffered by the cell is the intra-system interference.
8. The device according to claim 5, wherein the obtaining unit is specifically configured to:
acquiring the probability of scheduling the terminal in the same-system same-frequency adjacent cell of the cell on each resource block from a network management system; or,
and acquiring a scheduling algorithm of the terminal in the same-system same-frequency adjacent cell of the cell from a network management system, and determining the probability of scheduling the terminal in the same-system same-frequency adjacent cell of the cell on each resource block according to the scheduling algorithm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611023301.1A CN108093426B (en) | 2016-11-21 | 2016-11-21 | Method and equipment for detecting system internal interference |
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| WO2007024096A2 (en) * | 2005-08-24 | 2007-03-01 | Electronics And Telecommunications Research Institute | Communication resource allocation method of base station |
| CN103026676A (en) * | 2010-09-11 | 2013-04-03 | 诺基亚公司 | Dynamic autonomous resource allocation and channel access in cellular system uplink |
| CN104754597A (en) * | 2013-12-25 | 2015-07-01 | 中国移动通信集团江苏有限公司 | Equipment, system and method for automatic detection of interference |
| CN105744551A (en) * | 2016-03-01 | 2016-07-06 | 浪潮通信信息系统有限公司 | Automatic wireless network interference checking method based on pattern recognition |
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| WO2007024096A2 (en) * | 2005-08-24 | 2007-03-01 | Electronics And Telecommunications Research Institute | Communication resource allocation method of base station |
| CN103026676A (en) * | 2010-09-11 | 2013-04-03 | 诺基亚公司 | Dynamic autonomous resource allocation and channel access in cellular system uplink |
| CN104754597A (en) * | 2013-12-25 | 2015-07-01 | 中国移动通信集团江苏有限公司 | Equipment, system and method for automatic detection of interference |
| CN105744551A (en) * | 2016-03-01 | 2016-07-06 | 浪潮通信信息系统有限公司 | Automatic wireless network interference checking method based on pattern recognition |
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