WO2015149444A1 - 网络异常检测处理方法、装置及计算机存储介质 - Google Patents
网络异常检测处理方法、装置及计算机存储介质 Download PDFInfo
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- 230000002159 abnormal effect Effects 0.000 claims description 98
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Definitions
- the present invention relates to the field of mobile communications, and in particular, to a network anomaly detection processing method, apparatus, and computer storage medium. Background technique
- the network anomaly detection method is to detect the abnormality in the network in a timely and effective manner, and provide corresponding processing methods to minimize the impact of network anomalies on network performance.
- Network performance indicators include scheduling performance indicators and measurement performance indicators.
- the scheduling performance indicator is mainly measured by the scheduling feedback of the link.
- the scheduling feedback refers to the feedback of the correctness of the transmitted data. If the transmitted data receiving end receives correctly, the correct feedback (ACK, Acknowledgement) is sent to the transmitting end; otherwise, the feedback error (NACK) , Negative Acknowledgement ) to the sender. After receiving the NACK, the sender retransmits the data packet that feeds back the NACK. If the receiver still fails to correctly receive the data packet after retransmitting the number of times, the data packet is discarded.
- the scheduling performance indicator may be a scheduling error packet rate, a scheduling packet loss rate, a continuous packet loss number, and a continuous error packet number.
- the scheduling error packet rate refers to the ratio of the scheduling packet and the total scheduling packets that feed back the NACK in the scheduling packet.
- the scheduling packet loss rate refers to the ratio of the new transmission packet and the total scheduling packet of the multiple scheduling feedback NACK; the continuous error packet number refers to the continuous feedback in the scheduling. Number of NACKs; The number of consecutive packet drops refers to the number of consecutive failures of new packets.
- the measurement performance index is mainly measured by the measured value of the uplink and downlink measurement signals, for example: the measured value of the channel sounding reference signal (SRS, Sounding Reference Signal), channel quality The reported value of the indicator (CQI, Channel Quality Indicator).
- SRS channel sounding reference signal
- CQI Channel Quality Indicator
- embodiments of the present invention provide a network anomaly detection processing method, apparatus, and computer storage medium.
- the embodiment of the present invention provides a network anomaly detection processing method, where the method includes: periodically counting performance index information of an access link; and performing threshold values corresponding to the performance indicator information and corresponding performance indicator information according to statistics Determining the state of the link; processing the link according to the determined state of the link.
- the periodic statistics are: counting by a preset time period or by using a preset number of data packets as a period.
- the performance indicator information is scheduling performance indicator information or measurement performance indicator information.
- the link comprises an uplink or a downlink.
- the processing of the link includes: performing statistics on performance index information of the corresponding link for the link with the normal status; and limiting the scheduling resource of the link for the link with the abnormal status,
- the threshold is re-accessed or released.
- the link does not return to the normal state or the abnormal threshold is reached in the subsequent statistical period, and continues to be processed according to the abnormal link status.
- the processing of the link includes: performing, according to the link with the normal status, statistics on the performance of the link; and triggering the link re-access or release on the link with the abnormal status; Limiting the scheduling resource of the link to the link in the observed state, the link in the observed state returns to normal in the subsequent statistical period, and the link is processed according to the state, for the chain in the observed state
- the route reaches the abnormal threshold in the subsequent statistical period, and uses the re-access or release.
- the link in the observed state does not return to normal or the abnormal threshold is reached in the subsequent statistical period, and continues to follow the chain in the observed state. Road processing.
- the link re-accessing includes: when the link re-access is successful, re-stating the performance indicator information of the link in the next statistical period; when the link re-access fails, Then the link is released directly.
- the embodiment of the present invention further provides a network anomaly detection processing device, where the device includes: an information statistics module, configured to periodically count performance index information of an access link; and a comparison judgment module configured to perform statistics according to the information The performance indicator information of the module statistics and the threshold value corresponding to the corresponding performance indicator information determine the state of the link;
- a processing module configured to process the link according to a status of the link determined by the determining module.
- the information statistics module is configured to collect performance index information of the access link by using a preset time period, or to calculate performance index information of the access link by using a preset number of data packets.
- the processing module is configured to continue to collect performance indicator information of the corresponding link for the link with the normal status; and to limit the scheduling resource of the link for the link with the abnormal status, for the status is not
- the normal link is restored to normal after the subsequent statistics period. According to the state, the re-access or release is used. For the link whose status is abnormal, the link does not return to the normal state and is not confirmed to be reached.
- the abnormal threshold continues to be processed according to the abnormal link status.
- the processing module is configured to continue to count the corresponding chain on the link with the normal status. a performance indicator of the path; triggering the link re-access or release on the link with the abnormal state; limiting the scheduling resource of the link to the link in the observed state, and following the link in the observed state
- the statistic period is restored to normal.
- the link is in the normal state.
- the link in the observed state reaches the abnormal threshold in the subsequent statistics period.
- the re-access or release is used.
- the subsequent statistical period is neither restored nor confirmed as reaching the abnormal threshold, and continues to be processed according to the link in the observed state.
- the processing module is configured to re-count the performance indicator information of the link in the next statistical period when the link re-access is successful, and directly release the link when the re-access failure fails.
- the link is configured to re-count the performance indicator information of the link in the next statistical period when the link re-access is successful, and directly release the link when the re-access failure fails.
- the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the network abnormality detection processing method according to the embodiment of the present invention.
- the technical solution of the embodiment of the present invention can accurately identify the state of the uplink or the downlink, and determine the state type, and then perform corresponding processing according to the determination result, so as not to affect the scheduling of the normal link in the cell, thereby Try to avoid network performance degradation due to network anomalies, and minimize the impact of network anomalies on network performance.
- FIG. 1 is a schematic flowchart of a network anomaly detection processing method according to an embodiment of the present invention
- FIG. 2 is a schematic flowchart of a network anomaly detection processing method according to Embodiment 1 of the present invention
- 4 is a schematic flowchart of a network abnormality detecting and processing method according to a third embodiment of the present invention
- FIG. 5 is a schematic structural diagram of a network abnormality detecting apparatus according to a fourth embodiment of the present invention.
- the base station periodically collects and processes the system during operation.
- the performance indicator information of the access link is compared with the preset threshold information to obtain link state information, and corresponding links are processed according to the link state information.
- FIG. 1 is a schematic flowchart of a network anomaly detection processing method according to an embodiment of the present invention. The method steps disclosed in the embodiment of the present invention are as shown in FIG. 1. The method includes:
- Step S101 The base station periodically collects performance indicator information of the access link.
- Step S102 The base station determines the state of the link according to the statistical performance indicator information and the corresponding threshold value of the corresponding performance indicator information.
- the uplink observation state and the downlink observation state indicate that the link abnormality has not been completely determined, and only the link has an abnormal trend.
- the base station collects the performance indicator information of the specific link.
- the state of the link is a state corresponding to the specific threshold range.
- the threshold range may be set according to network performance requirements and a statistical manner.
- the threshold may include the following types: a normal threshold and an abnormal threshold, and the abnormal threshold may be specifically divided into an observation threshold and an abnormal threshold.
- These types of thresholds can be set separately on the uplink and downlink.
- the normal threshold is a threshold used to determine whether the link is normal, and the status of the link within the threshold is normal.
- the abnormal threshold is a threshold with respect to the normal threshold. If the performance index of the link reaches the range of the abnormal threshold, the link status may be determined to be abnormal.
- the abnormal threshold can be further divided into an observation threshold and an abnormal threshold.
- the observation period threshold is a threshold used to determine whether the link needs to continue to collect related information.
- a link that reaches this threshold is a link with an abnormal possibility. You need to continue to collect statistics to determine the link status.
- the abnormal threshold is a threshold used to determine whether the link is abnormal, and the link reaching the threshold is determined to be an abnormal link.
- the abnormal threshold can be further divided into a threshold that is directly determined to be abnormal, or can be determined as an abnormal threshold after the link performance is not improved after multiple observation periods.
- the threshold range information may be that the scheduling performance information of the uplink and downlink or the threshold information of the measurement performance information may be set to be periodic, and the period may be a period in a certain period of time, or may be a certain amount of data.
- the package is a certain period. If 2S is used as a cycle, it is also possible to transmit 100 packets as one cycle. And the periods of different types of information of different links may be the same or different.
- how to set the threshold may be configured and saved in the base station according to the policy of the operator in a specific area.
- the LTE network performance indicator requires that the scheduling error rate threshold is generally 10%, and the scheduling packet loss rate threshold is generally 1%. If the network performance requirements are high, the basic performance indicators can be slightly improved. Poorly performing links limit scheduling resources, re-access or release of abnormal links, and ensure network performance requirements.
- the uplink normal threshold can be set to the scheduling error packet rate of 6%, the threshold for directly determining the uplink abnormality is set to the scheduling error packet rate of 8%, and the uplink observation period threshold is set to the scheduling packet loss rate of 7%;
- the downlink normal threshold is set to the scheduling packet loss rate of 0.6%, the downlink observation period threshold is set to the scheduling packet loss rate of 0.6%-0.8%, and the downlink abnormal threshold is set to five consecutive periods as the observation period.
- the threshold information period of the uplink and downlink links, and the statistics period of different threshold indicators of the uplink and downlink links may be the same or different.
- the threshold may be degraded based on the basic performance indicator.
- the scheduling error packet rate threshold is generally 10%
- the scheduling packet loss rate threshold is generally 1%, and the operator's network property in a specific area.
- the metrics are not very high. Therefore, you can set the uplink normal threshold to 12% of the scheduled packet loss rate and the uplink abnormal threshold to 15% of the scheduled packet loss rate.
- the downlink normal threshold is set to a scheduling error rate of 1.3%
- the downlink abnormal threshold is set to a scheduling error rate of 1.6%.
- the statistical period of the uplink and downlink threshold information may be a time period or a chain. A certain data packet is transmitted for a certain period, and the statistical periods of different threshold indicators of the uplink and downlink may be the same or different.
- Step S103 The base station processes the link according to the state information of the link.
- the base station continues to count the links in the normal state of the uplink or the downlink, and does not perform any processing on the corresponding links.
- the base station limits its scheduling resources to the link in the observed state, and limits the scheduling of the corresponding link; and unilaterally limits its scheduling resources, that is, the link in the uplink observation state only limits the The uplink scheduling resource of the link, the link in the downlink observation state only limits the downlink scheduling resources of the link, and continues to count the related information of the corresponding link while limiting the scheduling resources of the corresponding link, and the corresponding link is observed. If the link returns to the normal state in the subsequent statistical period, the link is processed according to the normal state; if the link is still not restored in the subsequent statistical period, further confirm whether the link is up.
- the abnormal threshold is that the link that reaches the abnormal threshold is processed according to the abnormal link. If the link does not return to normal and the link does not reach the abnormal threshold in the subsequent statistics period, continue to follow the status.
- the normal link processing mode continues to be processed.
- the base station continues to collect the performance index of the corresponding link for the link with the normal state; the link with the abnormal state is triggered to re-access or release the link;
- the link of the state limits the scheduling resource of the link, and the link in the observed state returns to normal in the subsequent statistical period, according to the link processing in which the state is normal, and the link in the observed state is subsequently
- the statistics period reaches the abnormal threshold and is re-accessed or released.
- the link in the observed state does not return to normal in the subsequent statistical period. It is also not confirmed that the abnormal threshold is reached, and the link processing in the observed state continues.
- the base station uses a policy for triggering the corresponding link to re-access the base station or directly releasing the link that is determined to be in an abnormal state in the uplink or downlink. If the link re-access is successful, the link for re-accessing the base station re-statistics the performance indicator information of the link in the next cycle, according to the new link processing; when the link re-access fails , the link is released directly.
- the base station performs the same processing on the link that is determined to be abnormal according to the processing mode of the link in the observed state.
- step S101 to step S103 are repeated in the next scheduling cycle.
- the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the network abnormality detection processing method according to the embodiment of the present invention.
- the first embodiment is a method for the network abnormality detection and processing by using the statistical performance index information by the base station
- FIG. 2 is a schematic flowchart of the network abnormality detection processing method according to the first embodiment of the present invention. As shown in FIG. 2, the method includes:
- Step 201 The base station counts the number of consecutive packet drops of all uplinks and the scheduled packet loss rate of the downlink. Take the six links of the base station as an example. The current statistics of all links are as follows:
- the statistics of the uplink are:
- Link 1 The number of consecutive packet drops is 5 times;
- Link 2 The number of consecutive packet loss is 6 times
- Link 3 The number of consecutive packet drops is 20 times.
- the downlink sends 100 packets for one statistical period:
- Link 1 The probability of NACK for the current scheduling window scheduling feedback is 15%
- Link 2 The probability of the current scheduling window scheduling feedback NACK is 45%
- Link 3 Already in observation state and 4 consecutive scheduling windows in observation period, current scheduling
- the probability of window scheduling feedback NACK is 70%.
- Step 202 The base station compares the statistical performance indicator information with the corresponding threshold, and obtains link state information according to the comparison result.
- the performance indicator information of the uplink is the number of consecutive packet loss
- the threshold corresponding to the performance indicator information of the uplink is:
- the threshold value in the normal state is 10 times, that is, the packet is not lost after 10 consecutive times or less, and the uplink is determined to be in a normal state;
- threshold value in the observation state is 20 times, that is, continuous packet loss 20 times or more, it is determined that the uplink is in an observation state
- the uplink is determined to be in an abnormal state.
- the performance indicator information of the downlink is a probability of scheduling a feedback NACK, and the statistical period of the probability is to send 100 scheduling packets as one cycle, and the threshold value corresponding to the performance indicator information of the downlink is :
- the threshold value in the normal state is 20%, that is, less than 20 scheduling packets in the 100 scheduling packets feed back NACK, it is determined that the downlink is in a normal state
- the threshold value of the observed state is 40%, that is, more than 40 scheduling packets in the 100 scheduling packets are fed back NACK, and then the downlink is determined to be in an observation state;
- the threshold value in the abnormal state is that the five consecutive scheduling windows are in the observation period, that is, in the continuous 500 packets, and more than 40 scheduling packets in each of the 100 scheduling packets feed back NACK, and the downlink is determined to be in an abnormal state.
- the status of the corresponding link is: Upstream:
- Link 1 is in a normal state
- Link 2 in a normal state
- Link 3 In observation.
- Link 1 is in a normal state
- Step 203 The base station processes the corresponding link according to the status information of each link.
- Link 1 continue to count performance indicator information of the link
- Link 2 continue to count performance indicator information of the link
- Link 3 Enter the observation period, limit the downlink scheduling resources of the link, continue to collect the performance indicator information of the link in the subsequent statistical period, and determine the status of the link.
- Link 1 continue to count performance indicator information of the link
- Link 2 Entering the observation period, limiting the downlink scheduling resources of the link, and continuing to count the performance indicator information of the link in the subsequent statistical period and determining the status of the link;
- Link 3 Initiating re-access to the link, if the link re-access is successful, re-stating the performance indicator information of the link, and repeating steps 201 to 203; if the link is heavy If the access fails, the link is directly released.
- the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the network abnormality detection processing method according to the embodiment of the present invention.
- the second embodiment is a flowchart of a method for the network abnormality detection and processing performed by the base station by using the statistical performance index information.
- FIG. 3 is a schematic flowchart of the network abnormality detection processing method according to the second embodiment of the present invention; : Step 301: The base station collects the SRS measurement invalidity probability of all uplinks and the scheduled packet loss rate of the downlink.
- the statistic of the uplink is as follows:
- Link 3 Already in observation state and 4 consecutive statistical windows are in observation state, the current statistical window SRS measurement invalidity probability is 70%.
- the downlink counts 100 new packets as a statistical window.
- Link 1 The current scheduling window packet loss probability is 5%
- Link 2 The probability of packet loss in the current scheduling window is 45%
- Link 3 The current scheduling window packet loss probability is 20%.
- Step 302 The base station compares the statistical performance indicator information with the corresponding threshold, and obtains link state information according to the comparison result.
- the performance indicator information of the uplink is a SRS measurement validity ratio, and a window statistic is adopted, and 100 SRS measurement values are a statistic window; a threshold value corresponding to the performance indicator information of the uplink For:
- the threshold value in the normal state is 20%, that is, less than 20 of the 100 measured values are invalid, it is determined that the uplink is in a normal state
- the threshold value in the observation state is 30%, that is, more than 30 of the 100 measured values are invalid, it is determined that the uplink is in an observation state
- the threshold value in the abnormal state is that the five consecutive statistical windows are in the observation period, that is, among the 500 consecutive measurement values, if more than 30 measurement values are invalid for every 100 measurement values, the uplink is determined to be in an abnormal state.
- the performance indicator information of the downlink is a downlink packet loss probability
- the downlink packet loss probability is a method of window cut statistics
- 100 new data packets are a statistics window
- the downlink performance indicator is used.
- the threshold value in the normal state is 20%, that is, when less than 20 packets of 100 packets are lost, it is determined that the downlink is in a normal state
- the threshold value in the observation state is 30%, that is, more than 30 packet loss packets in 100 packets, and it is determined that the downlink is in an observation state;
- the threshold value in the abnormal state is that the five consecutive statistical windows are in the observation period, that is, in the continuous 500 packets, more than 30 packets out of every 100 packets are dropped, and the downlink is determined to be abnormal.
- the status of the corresponding link is: Uplink:
- Link 1 is in a normal state
- Link 3 is in a normal state.
- Step 303 The base station processes the corresponding link according to the status information of each link.
- Link 1 Entering the observation period, continuing to count the performance indicator information of the link in the subsequent statistical period and determining the status of the link;
- Link 2 is in a normal state, and continues to count performance indicator information of the link
- Link 3 In an abnormal state, the link is released directly.
- the link 1 is in the normal state and continues to collect the performance indicator information of the link.
- the link 2 enters the observation period, limits the downlink scheduling resources of the link, and continues to count the performance indicators of the link in the subsequent statistics period. Information and determining the status of the link;
- Link 3 In the normal state, continue to collect statistics on the performance indicators of the link.
- the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the network abnormality detection processing method according to the embodiment of the present invention.
- FIG. 4 is a schematic flowchart of a network anomaly detection processing method according to Embodiment 3 of the present invention; as shown in FIG. 4, the method includes:
- Step 401 The base station collects the scheduling packet loss rate of all uplinks.
- the base station has three uplinks as an example, and all the current link statistics are as follows:
- the uplink uses the statistics of the newly transmitted data packet in 2S as a statistical period:
- Link 1 The current period packet loss rate is 5%
- Link 3 The current period packet loss rate is 20%.
- Step 402 The base station compares the obtained performance indicator information with a corresponding threshold, and obtains link state information according to the comparison result.
- the performance indicator information of the uplink is an uplink packet loss rate of a statistical period
- the threshold corresponding to the performance indicator information of the uplink is:
- the threshold value in the normal state is 10%, that is, the packet loss rate in the newly transmitted data packet in the 2S is less than 10%, and the link is determined to be in a normal state;
- the threshold value in the abnormal state is 15%, that is, the packet loss rate is high in the newly transmitted data packet in 2S. At 15%, the link is determined to be in an abnormal state.
- the status of the corresponding link is: Upstream:
- Link 1 is in a normal state
- Step 403 The base station processes the corresponding link according to the status information of each link.
- link 1 is in a normal state, and continues to count performance indicator information of the link;
- Link 2 Entering the observation period, limiting the downlink scheduling resources of the link, and continuing to count the performance indicator information of the link in the subsequent statistical period and determining the status of the link;
- Link 3 Enter the observation period, limit the downlink scheduling resources of the link, continue to collect the performance indicator information of the link in the subsequent statistical period, and determine the status of the link.
- the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the network abnormality detection processing method according to the embodiment of the present invention.
- FIG. 5 is a schematic structural diagram of a network anomaly detecting apparatus according to Embodiment 4 of the present invention. As shown in FIG. 4, the apparatus includes:
- the information statistic module 51 is configured to periodically calculate the performance indicator information of the access link.
- the determining module 52 is configured to determine, according to the performance indicator information and the corresponding threshold value corresponding to the performance indicator information, that is calculated by the information statistic module 51. The status of the link;
- the processing module 53 is configured to process the link according to the status of the link determined by the determining module 52.
- the information statistic module 51 is configured to collect performance indicator information of the access link by using a preset time period, or use a preset number of data packets as a period. Statistics of performance indicators of the access link.
- the processing module 53 is configured to continue to collect performance index information of the corresponding link for a link with a normal status, and limit the scheduling of the link for a link with an abnormal status.
- the link is normal to the link in the subsequent statistical period, and the link is processed according to the normal state.
- the link For the link whose status is abnormal, the link reaches the abnormal threshold in the subsequent statistical period. If the link is abnormal, the link that is in the normal state is not restored to the normal state and is not confirmed to reach the abnormal threshold. The link continues to be processed according to the abnormal status.
- the processing module 53 is configured to continue to collect performance indicators of the corresponding link for a link with a normal status, and trigger the link re-access or for a link with an abnormal status. Releasing; limiting the scheduling resource of the link to the link in the observed state, and returning to the link in the observed state in the subsequent statistical period, according to the normal link processing, for the observed state The link reaches the abnormal threshold in the subsequent statistics period, and uses the re-access or release. The link in the observed state does not return to normal or the abnormal threshold is reached in the subsequent statistical period. Link processing.
- the processing module 53 is configured to continue to collect performance indicators of the corresponding link for a link with a normal status, and trigger the link re-access or for a link with an abnormal status. Releasing; limiting the scheduling resource of the link to the link in the observed state, and returning to the link in the observed state in the subsequent statistical period, according to the normal link processing, for the observed state The link reaches the abnormal threshold in the subsequent statistics period, and uses the re-access or release. The link in the observed state does not return to normal or the abnormal threshold is reached in the subsequent statistical period. Link processing.
- the network abnormality detecting and processing device may be used in an actual application.
- the base station is implemented; the information statistics module 51, the determining module 52, and the processing module 53 in the device may be implemented by a central processing unit (CPU), a digital signal processor (DSP) in the device. , Digital Signal Processor ) or Field Programmable Gate Array (J).
- CPU central processing unit
- DSP digital signal processor
- J Field Programmable Gate Array
- embodiments of the present invention can be provided as a method, or a computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware aspects. Moreover, the invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
- a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded into a computer or other programmable data processing device Having a series of operational steps performed on a computer or other programmable device to produce computer-implemented processing, such that instructions executed on a computer or other programmable device are provided for implementing a process or processes in a flowchart and/or Or block diagram the steps of a function specified in a box or multiple boxes.
- the embodiment of the present invention determines the state of the uplink or the downlink, determines the state type, and performs corresponding processing according to the determination result, so as not to affect the scheduling of the normal link in the cell, thereby avoiding network performance due to network abnormality as much as possible. The decline, to minimize the impact of network anomalies on network performance.
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JP2016559959A JP6279100B2 (ja) | 2014-04-01 | 2014-07-14 | ネットワーク異常検出処理方法、ネットワーク異常検出処理装置及びコンピュータ記憶媒体 |
EP14888423.2A EP3128781B1 (en) | 2014-04-01 | 2014-07-14 | Network anomaly detection and processing method and device and computer storage medium |
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CN201410132388.0A CN104980961A (zh) | 2014-04-01 | 2014-04-01 | 一种移动通信网络异常检测处理方法和装置 |
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CN102067655A (zh) * | 2008-06-19 | 2011-05-18 | 夏普株式会社 | 通信***、基站装置以及移动台装置 |
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CN104980961A (zh) | 2015-10-14 |
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EP3128781A4 (en) | 2017-10-25 |
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