CN114125913B - Distributed pico-base station interference positioning method and system - Google Patents
Distributed pico-base station interference positioning method and system Download PDFInfo
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Abstract
The invention provides a distributed pico-base station interference positioning method and a distributed pico-base station interference positioning system, comprising the following steps: BBU statistics obtains a cell-level uplink interference value, and determines corresponding expansion unit HUB equipment based on the cell-level uplink interference value and combining system topology information; the HUB equipment adopts a polling positioning detection method to determine a PICO list of an abnormal interference remote unit; and traversing the interference abnormal PICO list, positioning and acquiring an abnormal PICO uplink channel, and performing operation maintenance post-treatment on the abnormal PICO uplink channel. According to the invention, the fault points with the interference sources are obtained by tracing the interference paths of the modules in the distributed pico-cell base station layer by layer, so that the intelligent fault positioning is realized, the positioning is accurate, the efficiency is high, and the operation and maintenance cost can be effectively saved.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a distributed pico-base station interference positioning method and system.
Background
In a 5G wireless communication system, a 5G distributed pico-base station is widely used in various scenarios, and a common system topology structure includes 1 BBU (Building Baseband Unite, baseband processing unit), 4 HUB (extension unit) and 32 pico (remote unit).
In general, in 5G applications, uplink high throughput is an important feature, and uplink interference of a system affects uplink high speed features, and since there are many pico in the system, there are many connection nodes, so that the probability of introducing faults is increased, including faults of optical fiber network lines, equipment abnormality, and interference of a certain coverage area. If a certain node or HUB, pico, introduces interference due to equipment or environmental factors, it will affect the uplink rate of other users covered by the same cell, resulting in a decrease in the overall throughput. Therefore, the method is very important for intelligent maintenance of the 5G distributed leather base station under the condition that the accurate positioning and obstacle removal are not influenced by the whole coverage effect.
In most of the current application scenes, when uplink interference is encountered, manual investigation is adopted, the period is long, the efficiency is low, and the uplink rate of the whole cell is influenced during fault processing to influence the user experience.
Disclosure of Invention
The invention provides a distributed pico-base station interference positioning method and system, which are used for solving the defects of low efficiency and low accuracy caused by manually conducting fault investigation on a distributed pico-base station in the prior art.
In a first aspect, the present invention provides a distributed pico-base station interference positioning method, including:
BBU statistics obtains a cell-level uplink interference value, and determines corresponding expansion unit HUB equipment based on the cell-level uplink interference value and combining system topology information;
the HUB equipment adopts a polling positioning detection method to determine a PICO list of an abnormal interference remote unit;
and traversing the interference abnormal PICO list, positioning and acquiring an abnormal PICO uplink channel, and performing operation maintenance post-treatment on the abnormal PICO uplink channel.
According to the distributed pico-cell interference positioning method provided by the invention, BBU statistics obtains a cell-level uplink interference value, and determines corresponding expansion unit HUB equipment based on the cell-level uplink interference value and combining system topology information, and the method further comprises the following steps:
determining a cell-level uplink background noise reference value based on a system reference background noise value and a HUB radio frequency combining mode;
and acquiring a real-time uplink background noise value of each cell, and determining the difference between the real-time uplink background noise value and the cell-level uplink background noise reference value as the cell-level uplink interference value.
According to the distributed pico-cell interference positioning method provided by the invention, BBU statistics obtains a cell-level uplink interference value, and determines corresponding expansion unit HUB equipment based on the cell-level uplink interference value and combining system topology information, and the method specifically comprises the following steps:
if the BBU judges that the cell-level uplink interference value is greater than an uplink interference alarm threshold value, triggering and starting optical port-level uplink noise detection;
and acquiring HUB number information in CPRI data of a common public radio interface, and determining the corresponding HUB equipment based on the uplink interference value and the HUB number information.
According to the distributed pico-base station interference positioning method provided by the invention, HUB number information in CPRI data of a common public radio interface is obtained, the HUB interference value mapping table is determined based on the cell-level uplink interference value and the HUB number information, and then the method further comprises the following steps:
and adding the corresponding HUB equipment to a HUB interference value mapping table, and updating the HUB interference value mapping table to the system topology information, wherein the system topology information comprises a base band processing unit BBU downlink optical port number, a downlink optical port connection HUB number and a HUB connection remote radio unit RRU number.
According to the distributed PICO-base station interference positioning method provided by the invention, an initial interference value is determined according to the HUB interference value mapping table, and an interference abnormal PICO-base station PICO list is determined by adopting a polling positioning detection method based on the HUB initial interference value, and the method specifically comprises the following steps:
dividing the downlink ports of the HUB equipment into two groups;
closing PICO uplink channels of a first group of downlink ports, acquiring a first current interference value, traversing the interference value of a second group of downlink ports if the difference between the first current interference value and the cell-level uplink interference value is not larger than an uplink interference alarm threshold value, otherwise traversing the interference value of the first group of downlink ports, and determining all the PICO uplink channels with interference;
closing any interference-containing PICO uplink channel, obtaining a second current interference value, if judging that the difference between the second current interference value and the cell-level uplink interference value is not larger than the uplink interference alarm threshold, determining that any interference-containing PICO uplink channel is normal in interference, otherwise determining that any interference-containing PICO uplink channel is abnormal in interference, and circularly traversing all interference-containing PICO uplink channels to obtain the number of the interference-containing abnormal PICO uplink channel;
and determining the interference anomaly PICO list based on the interference anomaly PICO uplink channel number.
According to the distributed PICO-cell interference positioning method provided by the invention, the interference abnormal PICO list is traversed, an abnormal PICO uplink channel is positioned and acquired, and operation maintenance post-treatment is carried out on the abnormal PICO uplink channel, which comprises the following steps:
closing any corresponding interference anomaly PICO uplink channel in the interference anomaly PICO list;
acquiring a current interference value of a cell, and if the current interference value of the cell is smaller than an uplink interference alarm threshold value, determining any interference abnormal PICO uplink channel as a main interference source;
and traversing all the interference anomaly PICO uplink channels in the interference anomaly PICO list until the current interference value of the cell is recovered to be normal, and performing operation maintenance post-processing on all the interference anomaly PICO uplink channels.
According to the distributed PICO-cell interference positioning method provided by the invention, all interference abnormal PICO uplink channels in the interference abnormal PICO list are traversed until the current interference value of the cell is recovered to be normal, and the operation maintenance post-treatment is carried out on all interference abnormal PICO uplink channels, and then the method further comprises the following steps:
and closing the optical port level uplink background noise detection, and updating the interference value information in the system topology information table.
In a second aspect, the present invention also provides a distributed pico-base station interference localization system, including:
the BBU interference detection routing module is used for acquiring a cell-level uplink interference value through BBU statistics, and determining corresponding expansion unit HUB equipment based on the cell-level uplink interference value and combining system topology information;
the HUB interference positioning module is used for determining a PICO list of an interference abnormal remote unit by using a polling positioning detection method by HUB equipment;
and the BBU interference post-processing module is used for traversing the interference abnormal PICO list, positioning and acquiring an abnormal PICO uplink channel, and performing operation maintenance post-processing on the abnormal PICO uplink channel.
In a third aspect, the present invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the distributed pico-base station interference localization method as described in any of the above when the program is executed.
In a fourth aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of a distributed pico-base station interference localization method as described in any of the above.
In a fifth aspect, the present invention also provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of a distributed pico-base station interference localization method as described in any of the above.
According to the distributed pico-base station interference positioning method and system, the fault points with interference sources are obtained by tracing the interference paths of the modules in the distributed pico-base station layer by layer, and the fault points are timely subjected to operation and maintenance treatment, so that the influence of faults is reduced to the minimum, and the intelligent maintenance effect is achieved.
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In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a distributed pico-base station interference positioning method provided by the invention;
fig. 2 is a schematic diagram of an interference tracing path provided by the present invention;
fig. 3 is a flowchart of BBU interference detection routing provided by the present invention;
FIG. 4 is a flow chart of HUB interference location provided by the present invention;
FIG. 5 is a flow chart of BBU interference post-processing provided by the present invention;
fig. 6 is a schematic structural diagram of a distributed pico-base station interference positioning system provided by the present invention;
fig. 7 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Currently, for the fault location and daily maintenance work of the 5G distributed pico-base station, the work of on-site processing is mostly carried out manually, so that the maintenance period is long and the implementation efficiency is low, aiming at the problem, the invention provides a novel distributed pico-base station interference location method, an intelligent maintenance technology is adopted, and fig. 1 is a flow diagram of the distributed pico-base station interference location method provided by the invention, as shown in fig. 1, and the method comprises the following steps:
s1, BBU statistics obtains a cell-level uplink interference value, and determines corresponding expansion unit HUB equipment based on the cell-level uplink interference value and combining system topology information;
for the structural characteristics of the 5G distributed pico-base station, interference monitoring is performed from the BBU, and as the BBU is used as a core control unit of a base station core for centralized supervision of the remote radio units, a centralized arrangement mode is generally adopted as a baseband signal processing unit, internal processing products and signals are used as a baseband signal processing unit, and the noise floor value of the system is confirmed by counting PRB (Physical Resource Block, physical resource blocks). The noise floor of the distributed pico station system is typically-112 dBm, and the portion above the baseline noise floor is referred to as interference, where the baseline noise floor will change accordingly if radio frequency combining of the downstream HUB units is involved.
The invention adopts BBU to take charge of the detection of the uplink interference value of the cell level to obtain HUB interference value mapping table, and then combines the system topology information to correspond the interference value to the corresponding optical port level equipment, namely the HUB equipment which is connected with the corresponding optical port.
S2, the HUB equipment adopts a polling positioning detection method to determine a PICO list of an abnormal interference remote unit;
and (3) further positioning the fault to a specific HUB device, and taking an uplink interference value obtained by the BBU as an initial interference value, wherein the initial interference value is pushed to the corresponding HUB device by the BBU through the HUB interference value mapping table.
As 8 PICO can be connected down to each HUB device at most, the invention provides a polling positioning detection method, each PICO connected down is positioned one by one to obtain a plurality of real-time interference values, and the PICO uplink channels with interference anomalies are obtained by combining the comparison of initial interference values to form an interference anomaly PICO list;
s3, traversing the interference abnormal PICO list, positioning and obtaining an abnormal Pico uplink channel, and performing operation maintenance post-treatment on the abnormal PICO uplink channel.
And according to the positioning result at the HUB equipment side, the obtained interference anomaly PICO list is subjected to interference post-processing by the BBU, each Pico uplink channel with interference anomaly in the interference anomaly PICO list is further screened to obtain an interference source, the interference source is isolated, and reporting operation maintenance processing is performed.
In the method for tracing the interference path of each module in the distributed pico-base station, as shown in fig. 2, cell-level interference detection is started at the BBU side to obtain an abnormal interference value of the cell 1, uplink noise detection at the optical port level is started, interference of the HUB21 connected with the optical port 2 is detected, 8 pico connected with the HUB21 is further examined, the interference range is narrowed to the first 4 pico ports, namely P211 to P214, through interference positioning of the HUB, the pico uplink channel corresponding to the P211 as a main interference source is finally examined, and finally the P211 port is isolated and reported for operation and maintenance.
According to the invention, the fault points with the interference sources are obtained by tracing the interference paths of the modules in the distributed pico-cell base station, and the fault points are timely operated and maintained, so that the influence of faults is reduced to the minimum, and the intelligent maintenance effect is achieved.
Based on the above embodiment, the method further includes, before step S1:
determining a cell-level uplink background noise reference value based on a system reference background noise value and a HUB radio frequency combining mode;
and acquiring a real-time uplink background noise value of each cell, and determining the difference between the real-time uplink background noise value and the cell-level uplink background noise reference value as the cell-level uplink interference value.
Specifically, the BBU needs to calculate an uplink background noise reference value of the system first, and calculate the uplink background noise reference value of the system according to the system reference background noise value and the radio frequency combining mode on the HUB, if the system reference background noise value is-112 dBm and the radio frequency combining mode on the HUB is radio frequency 4-1, the uplink background noise reference value of the system is-112+6= -106dBm.
And the BBU detects the uplink background noise value of each cell at regular time, and the difference between the real-time uplink background noise value and the uplink background noise reference value of the system is the cell-level uplink interference value.
The invention obtains the uplink interference value through the difference between the uplink background noise value obtained by BBU real-time detection and the uplink background noise reference value of the system, can effectively detect the real-time interference condition of the system, and provides accurate interference value reference data for implementing interference positioning.
Based on any of the above embodiments, the method step S1 specifically includes:
if the BBU judges that the cell-level uplink interference value is greater than an uplink interference alarm threshold value, triggering and starting optical port-level uplink noise detection;
and acquiring HUB number information in CPRI data of a common public radio interface, and determining the corresponding HUB equipment based on the cell-level uplink interference value and the HUB number information.
Specifically, the BBU interference detection routing flow is as shown in fig. 3:
after the uplink interference value is obtained, the BBU starts to implement interference detection, and refreshes the uplink interference value at regular time, and under normal conditions, the uplink interference value is 0
And if the difference exceeds an uplink interference alarm threshold (the threshold is generally set to be 3dB in consideration of factors such as detection precision and the like), judging that the system has uplink interference, triggering interference route detection, namely starting optical port-level uplink noise detection, wherein the optical port-level noise information detection consumes operation resources compared with the cell-level interference detection, and normally only starting the cell-level interference detection, so that the triggering condition is met.
Corresponding HUB number information in CPRI (Common Public Radio Interface ) data is synchronously recorded, wherein the HUB number information can be mapped to the optical port number of the corresponding BBU and the number of the HUB in the system, and the interference value and the corresponding HUB number information are stored in a HUB interference value mapping table.
The BBU pushes the HUB interference value mapping table to the corresponding HUB equipment, and starts HUB interference positioning.
In the invention, the BBU judges whether the uplink interference value exceeds the threshold value or not to start the uplink noise detection of the corresponding optical port, so that the HUB equipment with interference can be accurately positioned, the automatic pushing of interference information is realized, and the interference source in the HUB equipment can be conveniently further checked.
Based on any of the above embodiments, obtaining HUB number information in CPRI data, determining the HUB interference value mapping table based on the uplink interference value and the HUB number information, and then further includes:
and adding the corresponding HUB equipment to a HUB interference value mapping table, and updating the HUB interference value mapping table to the system topology information, wherein the system topology information comprises a base band processing unit BBU downlink optical port number, a downlink optical port connection HUB number and a HUB connection remote radio unit RRU number.
Optionally, after the HUB interference positioning is started, the BBU synchronously updates an interference value corresponding to the HUB to a system topology information table, wherein the system topology information table comprises the serial numbers of the BBU downlink optical ports, the serial numbers of the corresponding connected HUBs and the serial numbers of RRUs connected with the HUBs.
The invention synchronously updates the system topology information table after acquiring the system real-time interference information, is convenient for operation maintenance personnel to know the latest system topology networking condition in time, and reflects the real-time performance and convenience of intelligent maintenance.
Based on any of the above embodiments, the method step S2 specifically includes:
dividing the downlink ports of the HUB equipment into two groups;
closing PICO uplink channels of a first group of downlink ports, acquiring a first current interference value, traversing the interference value of a second group of downlink ports if the difference between the first current interference value and the cell-level uplink interference value is not larger than an uplink interference alarm threshold value, otherwise traversing the interference value of the first group of downlink ports, and determining all the PICO uplink channels with interference;
closing any interference-containing PICO uplink channel, obtaining a second current interference value, if judging that the difference between the second current interference value and the cell-level uplink interference value is not larger than the uplink interference alarm threshold, determining that any interference-containing PICO uplink channel is normal in interference, otherwise determining that any interference-containing PICO uplink channel is abnormal in interference, and circularly traversing all interference-containing PICO uplink channels to obtain the number of the interference-containing abnormal PICO uplink channel;
and determining the interference anomaly PICO list based on the interference anomaly PICO uplink channel number.
Specifically, the HUB interference positioning procedure is shown in fig. 4:
after receiving the interference detection starting message sent by the BBU, the HUB receives the corresponding interference value. The interference value at this time is defined as an initial interference value. The invention designs a polling positioning detection method aiming at HUB interference positioning flow, wherein 8 ports are connected to the HUB, a rough area is positioned by a dichotomy, and then PRRU of the corresponding area is traversed.
Firstly, dividing 8 ports of HUB uplink and downlink into two groups in sequence, and closing uplink channels of PICO of the first 4 ports, namely a first group of downlink ports;
informing the BBU to acquire the current HUB and interference value mapping table information, comparing the acquired first current interference value with the initial interference value, and if the first current interference value is unchanged (i.e. smaller than an uplink interference alarm threshold), traversing the interference values of the last 4 ports, namely the second group of downlink ports; if the interference value is normal, the interference values of the first 4 ports are traversed. Otherwise, traversing all pico ports;
further, closing the nth pico uplink channel according to the range determined in the step;
informing the BBU to acquire the current HUB interference value mapping table information, comparing a second current interference value acquired after closing the N-th pico uplink channel with the initial interference value, and if the second current interference value is unchanged (namely smaller than an uplink interference alarm threshold), marking that the corresponding pico interference is normal; if the difference value between the initial interference value and the second current interference value is larger than the uplink interference alarm threshold, marking the corresponding pico interference abnormality, and circularly traversing all the pico;
after the HUB traverses all the PICO, the uplink channel number of the interference anomaly PICO is obtained, so that an interference anomaly PICO list is obtained, the HUB detection completion message is replied to the BBU, and the condition of the interference value after each PICO carried by the HUB is closed is replied.
At this time, after receiving the message of completing the HUB detection, the BBU starts the interference post-processing flow.
According to the invention, the poll positioning detection method is adopted to screen and check the PICO port connected with the HUB down, so that the interference abnormal PICO list is obtained, the BBU is convenient to carry out subsequent operation and maintenance processing, the method has the characteristic of high accuracy rate, and the method reflects the high efficiency of intelligent operation and maintenance compared with manual check.
Based on any of the above embodiments, the method step S3 specifically includes:
closing any corresponding interference anomaly PICO uplink channel in the interference anomaly PICO list;
acquiring a current interference value of a cell, and if the current interference value of the cell is smaller than an uplink interference alarm threshold value, determining any interference abnormal PICO uplink channel as a main interference source;
and traversing all the interference anomaly PICO uplink channels in the interference anomaly PICO list until the current interference value of the cell is recovered to be normal, and performing operation maintenance post-processing on all the interference anomaly PICO uplink channels.
Specifically, the BBU interference post-processing flow is shown in fig. 5:
after receiving the HUB detection completion message, the BBU starts to judge the interference value conditions of all PICO reported by all HUBs, and forms an interference anomaly PICO list by all PICO showing interference anomalies under all HUBs;
firstly, updating an interference anomaly PICO list in a system, and closing an Nth interference anomaly PICO uplink channel;
detecting a current interference value of a cell, if the current interference value is recovered to be normal, judging that the pico is a main interference source, closing a corresponding pico channel, reporting an abnormal pico uplink interference alarm, and reporting operation maintenance processing;
further, to find out all the interference sources, the BBU will traverse the interference anomaly PICO list, repeating the above operation until the uplink interference value returns to normal.
According to the invention, through BBU interference post-processing, the main interference source of the system is further obtained by screening the interference abnormal PICO list in the HUB, so that accurate interference positioning is realized.
Based on any of the above embodiments, traversing all interference anomaly PICO uplink channels in the interference anomaly PICO list until the current interference value of the cell returns to normal, and performing operation maintenance post-processing on all interference anomaly PICO uplink channels, and then further including:
and closing the optical port level uplink background noise detection, and updating the interference value information in the system topology information table.
Optionally, after completing the interference post-processing flow, the BBU further performs detection of closing the optical port level uplink noise, updates the interference value information of each device in the system topology information table, and prompts alarm, reporting operation maintenance post-processing, and the like.
Here, since the system resource is consumed by the optical port level uplink noise detection comparison, after a specific interference source is detected, the BBU performs the closing process, thereby realizing the closed loop process of the detection flow.
According to the BBU interference post-processing method, the main interference source is further obtained through screening according to the HUB interference detection result, closed-loop processing is realized on the interference detection flow, positioning is accurate, efficiency is high, and operation and maintenance cost is saved.
The distributed pico-base station interference positioning system provided by the invention is described below, and the distributed pico-base station interference positioning system described below and the distributed pico-base station interference positioning method described above can be correspondingly referred to each other.
Fig. 6 is a schematic structural diagram of a distributed pico-cell interference positioning system according to the present invention, as shown in fig. 6, including: the BBU interference detection routing module 61, the HUB interference positioning module 62, and the BBU interference post-processing module 63, wherein:
the BBU interference detection routing module 61 is configured to obtain an uplink interference value by using BBU statistics, and determine a corresponding extended unit HUB device based on the cell-level uplink interference value and in combination with system topology information; the HUB interference positioning module 62 is configured to determine a PICO list of the remote unit with abnormal interference by using a polling positioning detection method; the BBU interference post-processing module 63 is configured to traverse the interference abnormal PICO list, locate and obtain an abnormal PICO uplink channel, and perform operation maintenance post-processing on the abnormal PICO uplink channel.
According to the invention, the fault points with the interference sources are obtained by tracing the interference paths of the modules in the distributed pico-cell base station, and the fault points are timely operated and maintained, so that the influence of faults is reduced to the minimum, and the intelligent maintenance effect is achieved.
Fig. 7 illustrates a physical schematic diagram of an electronic device, as shown in fig. 7, which may include: processor 710, communication interface (Communications Interface) 720, memory 730, and communication bus 740, wherein processor 710, communication interface 720, memory 730 communicate with each other via communication bus 740. The processor 710 may invoke logic instructions in the memory 730 to perform a distributed pico-base station interference localization method comprising: BBU statistics obtains a cell-level uplink interference value, and determines corresponding expansion unit HUB equipment based on the cell-level uplink interference value and combining system topology information; the HUB equipment adopts a polling positioning detection method to determine a PICO list of an abnormal interference remote unit; and traversing the interference abnormal PICO list, positioning and acquiring an abnormal PICO uplink channel, and performing operation maintenance post-treatment on the abnormal PICO uplink channel.
Further, the logic instructions in the memory 730 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product, where the computer program product includes a computer program, where the computer program can be stored on a non-transitory computer readable storage medium, and when the computer program is executed by a processor, the computer can execute the distributed pico-site interference positioning method provided by the above methods, and the method includes: BBU statistics obtains a cell-level uplink interference value, and determines corresponding expansion unit HUB equipment based on the cell-level uplink interference value and combining system topology information; the HUB equipment adopts a polling positioning detection method to determine a PICO list of an abnormal interference remote unit; and traversing the interference abnormal PICO list, positioning and acquiring an abnormal PICO uplink channel, and performing operation maintenance post-treatment on the abnormal PICO uplink channel.
In yet another aspect, the present invention further provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the distributed pico-base station interference localization method provided by the above methods, the method comprising: BBU statistics obtains a cell-level uplink interference value, and determines corresponding expansion unit HUB equipment based on the cell-level uplink interference value and combining system topology information; the HUB equipment adopts a polling positioning detection method to determine a PICO list of an abnormal interference remote unit; and traversing the interference abnormal PICO list, positioning and acquiring an abnormal PICO uplink channel, and performing operation maintenance post-treatment on the abnormal PICO uplink channel.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The distributed pico-base station interference positioning method is characterized by comprising the following steps of:
BBU statistics obtains a cell-level uplink interference value, and determines corresponding expansion unit HUB equipment based on the cell-level uplink interference value and combining system topology information;
the HUB equipment adopts a polling positioning detection method to determine a PICO list of an abnormal interference remote unit;
traversing the interference abnormal PICO list, positioning and acquiring an abnormal PICO uplink channel, and performing operation maintenance post-treatment on the abnormal PICO uplink channel;
the HUB device adopts a polling positioning detection method to determine a PICO list of an abnormal interference remote unit, and specifically comprises the following steps:
dividing the downlink ports of the HUB equipment into two groups;
closing PICO uplink channels of a first group of downlink ports, acquiring a first current interference value, traversing the interference value of a second group of downlink ports if the difference between the first current interference value and the cell-level uplink interference value is not larger than an uplink interference alarm threshold value, otherwise traversing the interference value of the first group of downlink ports, and determining all the PICO uplink channels with interference;
closing any interference-containing PICO uplink channel, obtaining a second current interference value, if judging that the difference between the second current interference value and the cell-level uplink interference value is not larger than the uplink interference alarm threshold, determining that any interference-containing PICO uplink channel is normal in interference, otherwise determining that any interference-containing PICO uplink channel is abnormal in interference, and circularly traversing all interference-containing PICO uplink channels to obtain the number of the interference-containing abnormal PICO uplink channel;
determining the interference anomaly PICO list based on the interference anomaly PICO uplink channel number;
traversing the interference abnormal PICO list, positioning and acquiring an abnormal PICO uplink channel, and performing operation maintenance post-treatment on the abnormal PICO uplink channel, wherein the method specifically comprises the following steps of:
closing any corresponding interference anomaly PICO uplink channel in the interference anomaly PICO list;
acquiring a current interference value of a cell, and if the current interference value of the cell is smaller than an uplink interference alarm threshold value, determining any interference abnormal PICO uplink channel as a main interference source;
and traversing all the interference anomaly PICO uplink channels in the interference anomaly PICO list until the current interference value of the cell is recovered to be normal, and performing operation maintenance post-processing on all the interference anomaly PICO uplink channels.
2. The method for locating interference of a distributed pico base station according to claim 1, wherein the BBU statistically obtains a cell-level uplink interference value, and determines a corresponding extension unit HUB device based on the cell-level uplink interference value and in combination with system topology information, and further comprising:
determining a cell-level uplink background noise reference value based on a system reference background noise value and a HUB radio frequency combining mode;
and acquiring a real-time uplink background noise value of each cell, and determining the difference between the real-time uplink background noise value and the cell-level uplink background noise reference value as the cell-level uplink interference value.
3. The method for locating interference of distributed pico-base station according to claim 1 or 2, wherein the BBU statistically obtains a cell-level uplink interference value, and determines a corresponding extension unit HUB device based on the cell-level uplink interference value and in combination with system topology information, specifically comprising:
if the BBU judges that the cell-level uplink interference value is greater than an uplink interference alarm threshold value, triggering and starting optical port-level uplink noise detection;
and acquiring HUB number information in CPRI data of a common public radio interface, and determining the corresponding HUB equipment based on the cell-level uplink interference value and the HUB number information.
4. A distributed pico-base station interference positioning method according to claim 3, wherein obtaining HUB number information in CPRI data, determining the corresponding HUB device based on the uplink interference value and the HUB number information, and then further comprises:
and adding the corresponding HUB equipment to a HUB interference value mapping table, and updating the HUB interference value mapping table to the system topology information, wherein the system topology information comprises a base band processing unit BBU downlink optical port number, a downlink optical port connection HUB number and a HUB connection remote radio unit RRU number.
5. The method for locating interference of a distributed PICO base station according to claim 1, wherein traversing all interference anomaly PICO uplink channels in the interference anomaly PICO list until the current interference value of the cell returns to normal, performing operation maintenance post-processing on all interference anomaly PICO uplink channels, and further comprising:
and closing the optical port level uplink background noise detection, and updating the interference value information in the system topology information table.
6. The utility model provides a distributed pico station interference positioning system which characterized in that includes:
the BBU interference detection routing module is used for acquiring a cell-level uplink interference value through BBU statistics, and determining corresponding expansion unit HUB equipment based on the cell-level uplink interference value and combining system topology information;
the HUB interference positioning module is used for determining a PICO list of an interference abnormal remote unit by using a polling positioning detection method by HUB equipment;
the BBU interference post-processing module is used for traversing the interference abnormal PICO list, positioning and acquiring an abnormal PICO uplink channel, and performing operation maintenance post-processing on the abnormal PICO uplink channel;
the HUB interference positioning module is specifically used for:
dividing the downlink ports of the HUB equipment into two groups;
closing PICO uplink channels of a first group of downlink ports, acquiring a first current interference value, traversing the interference value of a second group of downlink ports if the difference between the first current interference value and the cell-level uplink interference value is not larger than an uplink interference alarm threshold value, otherwise traversing the interference value of the first group of downlink ports, and determining all the PICO uplink channels with interference;
closing any interference-containing PICO uplink channel, obtaining a second current interference value, if judging that the difference between the second current interference value and the cell-level uplink interference value is not larger than the uplink interference alarm threshold, determining that any interference-containing PICO uplink channel is normal in interference, otherwise determining that any interference-containing PICO uplink channel is abnormal in interference, and circularly traversing all interference-containing PICO uplink channels to obtain the number of the interference-containing abnormal PICO uplink channel;
determining the interference anomaly PICO list based on the interference anomaly PICO uplink channel number;
the BBU interference post-processing module is specifically used for:
closing any corresponding interference anomaly PICO uplink channel in the interference anomaly PICO list;
acquiring a current interference value of a cell, and if the current interference value of the cell is smaller than an uplink interference alarm threshold value, determining any interference abnormal PICO uplink channel as a main interference source;
and traversing all the interference anomaly PICO uplink channels in the interference anomaly PICO list until the current interference value of the cell is recovered to be normal, and performing operation maintenance post-processing on all the interference anomaly PICO uplink channels.
7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the distributed pico-station interference localization method according to any one of claims 1 to 5 when the program is executed.
8. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the distributed pico base station interference localization method according to any of claims 1 to 5.
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