CN108809445B

CN108809445B - Acceptance method and device for indoor coverage antenna

Info

Publication number: CN108809445B
Application number: CN201710291940.4A
Authority: CN
Inventors: 李素华; 蔡万强
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Group Hubei Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Group Hubei Co Ltd
Priority date: 2017-04-27
Filing date: 2017-04-27
Publication date: 2021-07-27
Anticipated expiration: 2037-04-27
Also published as: CN108809445A

Abstract

The invention discloses an acceptance method and device for an indoor coverage antenna. The method comprises the following steps: acquiring the position of an antenna in an antenna feeder plane diagram and a scale of the antenna feeder plane diagram; acquiring a topological structure of a room division device, wherein the room division device comprises an antenna and a superior device of the antenna; generating a graphic information database of the room-divided devices according to the position, the scale and the topological structure of the antenna; acquiring test data of the antenna according to the position of the antenna; matching the test data with the positions of the antennas in the graphic information database one by one, and calculating the antenna power successfully matched; and (4) checking and accepting the antenna when the antenna power is greater than or equal to the judgment threshold. According to the embodiment of the invention, the graphic information database of the indoor sub-device is generated according to the position, the scale and the topological structure of the antenna, and then the test data are matched with the positions of the antenna in the graphic information database one by one, so that the automatic and full-scale acceptance of the power of the indoor sub-antenna point can be realized, and the antenna acceptance efficiency is improved.

Description

Acceptance method and device for indoor coverage antenna

Technical Field

The invention relates to the technical field of wireless communication, in particular to an acceptance method and an acceptance device for an indoor coverage antenna.

Background

With the rapid development of wireless communication technology, indoor network signal coverage gradually develops towards deep coverage. In order to ensure good coverage of indoor network signals, communication enterprises have built a large number of LTE (Long Term Evolution) indoor distribution systems (for short, indoor distribution). Due to the fact that the number of the indoor sub-devices (such as antennas) is large, coverage is complex (the antenna hidden ratio in the existing network is high), the work load of checking the indoor sub-devices is very large, and the difficulty of checking is high.

The existing acceptance method aiming at the indoor sub-devices mainly adopts a test mode of manual field random spot inspection, and the spot inspection proportion is about 10%. The existing acceptance method for the chamber division device has the following technical problems: long checking and accepting time, incapability of checking and accepting the whole quantity of branch antenna points in a network room, insufficient checking and accepting automation, low checking and accepting precision and the like. Due to the low acceptance efficiency, the indoor signal depth coverage is directly influenced.

How to improve the acceptance efficiency of the indoor coverage antenna becomes an urgent problem to be solved in the industry.

Disclosure of Invention

In order to improve the acceptance efficiency of the indoor coverage antenna, the embodiment of the invention provides an acceptance method and an acceptance device of the indoor coverage antenna.

In a first aspect, a method for acceptance of an indoor coverage antenna is provided. The method comprises the following steps:

acquiring the position of an antenna in an antenna feed plan and a scale of the antenna feed plan;

acquiring a topological structure of a room division device, wherein the room division device comprises an antenna and a superior device of the antenna;

generating a graphic information database of the room-divided devices according to the position, the scale and the topological structure of the antenna;

acquiring test data of the antenna according to the position of the antenna;

matching the test data with the positions of the antennas in the graphic information database one by one, and calculating the antenna power successfully matched;

and (4) checking and accepting the antenna when the antenna power is greater than or equal to the judgment threshold.

In a second aspect, an acceptance apparatus for an indoor coverage antenna is provided. The device includes:

the first acquisition unit is used for acquiring the position of the antenna in the antenna feed plan and the scale of the antenna feed plan;

the second acquisition unit is used for acquiring a topological structure of the indoor sub-device, and the indoor sub-device comprises an antenna and an upper-level device of the antenna;

the database generation unit is used for generating a graphic information database of the indoor sub-device according to the position, the scale and the topological structure of the antenna;

the data acquisition unit is used for acquiring test data of the antenna according to the position of the antenna;

the power calculation unit is used for matching the test data with the positions of the antennas in the graphic information database one by one and calculating the antenna power successfully matched;

and the antenna acceptance unit is used for accepting the antenna when the antenna power is greater than or equal to the judgment threshold.

Therefore, according to the embodiment of the invention, the graphic information database of the indoor sub-device can be generated according to the position, the scale and the topological structure of the antenna, the graph paper can be converted into the vector layer applicable to the test software, and then the test data is matched with the positions of the antennas in the graphic information database one by one, so that the automatic and full-scale acceptance of the power of the indoor sub-antenna can be realized, and the antenna acceptance efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below 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 creative efforts.

Fig. 1 is a flowchart illustrating an acceptance method of an indoor coverage antenna according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of antenna labeling and coordinate matching of antenna points according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of the topology of a chamber-partitioned device in accordance with one embodiment of the present invention.

Fig. 4 is a schematic diagram of an LTE/WLAN combining manner according to an embodiment of the present invention.

Fig. 5(a) is a schematic diagram of fault node location of a 2-way tree according to an embodiment of the present invention.

Fig. 5(b) is a schematic diagram of the location of a failed node in a 2-way tree according to another embodiment of the present invention.

Fig. 6 is a schematic diagram of calculating an actual position of an antenna by a three-point positioning method according to another embodiment of the invention.

Fig. 7 is a schematic structural diagram of an acceptance apparatus for an indoor coverage antenna according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1, the method comprises the steps of: s110, acquiring the position of an antenna in an antenna feeder plane diagram and a scale of the antenna feeder plane diagram; s120, acquiring a topological structure of a room division device, wherein the room division device comprises an antenna and an upper-level device of the antenna; s130, generating a graphic information database of the indoor sub-device according to the position, the scale and the topological structure of the antenna; s140, collecting test data of the antenna according to the position of the antenna; s150, matching the test data with the positions of the antennas in the graphic information database one by one, and calculating the antenna power successfully matched; and S160, checking and accepting the antenna when the antenna power is larger than or equal to the decision threshold.

In step S110, the antenna feed plan may be a drawing including spatial distribution and coordinates of antenna points. The drawing can be drawn on the basis of a house layout. The antenna may be a circular omni-directional ceiling antenna.

The method for acquiring the antenna position can extract the rectangular coordinates (x, y) of the antenna point in the drawing through a primitive positioning and extracting algorithm, and then converts the rectangular coordinates of the antenna point into longitude and latitude through a Gaussian projection back-calculation formula. For example: firstly, an antenna feeder plan is input, and antenna point information is extracted through a primitive positioning extraction algorithm to output rectangular coordinates of antenna points. Then 3 reference points (such as rectangular coordinates and longitude and latitude) are input, and the longitude and latitude of the antenna point are output through a dead-projection back calculation formula.

The implementation of the antenna rectangular coordinate extraction can be as follows: in the drawing, antenna points are laid out in a predefined pattern (for example, an omnidirectional ceiling antenna is circular), and antenna labels have a normative syntax format (ANTm-nF, wherein m is an antenna point number, and n is a floor number), but the antenna points and the floor number are not stored in a related mode. The embodiment of the invention autonomously develops a primitive positioning and extracting algorithm, screens out all antenna labels and antenna point coordinates by traversing graphs and texts in a drawing, and realizes association matching with minimum distance.

As shown in fig. 2, the coupler 201 is connected to the power divider 202. The coupler 201 has 1 antenna 203 (labeled ANT1-1F) suspended below it. The power divider 202 has an antenna 204 and an antenna 205 (labeled ANT3-1F) suspended from it. The implementation of antenna 204 labeling and antenna point coordinate (3, 1) matching is as follows:

1. the coordinates of antenna 203 are (1, 1), the coordinates of antenna 204 are (3, 1), and the coordinates of antenna 205 are (4, 2).

2. The distances from the antenna label ANT2-1F to the three antenna points are d1, d2, and d3, respectively.

3. The minimum value among d1, d2 and d3 is determined, here, d2 ═ min { d1, d2 and d3 }.

4. The coordinates of the antenna point corresponding to ANT2-1F are thus found to be (3, 1). Antenna 204 is labeled ANT 2-1F.

The implementation manner of the longitude and latitude conversion of the antenna point can be as follows: and based on three reference points with known rectangular coordinates and longitude and latitude, converting the rectangular coordinates of the antenna points into the longitude and latitude through a Gaussian back projection calculation formula.

The implementation of the drawing scale extraction can be as follows: and programming and reading alignment marking information (including segment drawing length, drawing scaling and segment marking length) of an X axis (horizontal direction) and a Y axis (vertical direction), calculating the scales of the X axis and the Y axis of the drawing through a scale (segment drawing length/drawing scaling/segment marking length), and preparing for the subsequent calculation of the real distance between the antenna point and the sampling point.

In step S120, the chamber division device may include an antenna and an upper device of the antenna. The upper device of the antenna may be a power divider, a combiner, an RRU (Radio Remote Unit), and the like. The topology may be that of a chamber device in a system schematic.

As shown in fig. 3, the topology is a 1-way 2-tree structure. The root node of the 2-way tree is start point 301 and the leaf nodes are node 3304 and node 5306. The upper node of node 5306 is node 4305. The upper nodes of the node 4305 and the node 3304 are both the node 2303. The upper node of the node 2303 is a node 1302. The upper level node of node 1302 is start point 301.

The algorithm principle of the chamber division topology extraction can be as follows: the connection and the superior-inferior relation between the nodes are judged by utilizing the overlapping relation between the two end points of the line segment and the node graph, and the specific judging steps can be as follows:

1. determining the starting point 301 and a line segment having a connection relationship with the starting point 301, here, a line segment a1, determining a node connected to the other end point of a1, here, a node 1302, and outputting { current node, left leaf child node, right leaf child node } { starting point, node 1, NA (no node) }.

2. Judging that a new line segment having a connection relationship with the node 1302 exists, here, a2 (the judgment is already made in the first step of a1, and the judgment is omitted here), judging that a node connected to the other end point of a2, here, a node 2303, and outputting { current node, left leaf child node, right leaf child node } ═ { node 1, node 2, NA (no node) }.

3. Similarly, output { node 2, node 3, node 4}, { node 4, node 5, NA }, { node 3, NA }, { node 5, NA (no node) }.

In some embodiments, the RRU may be used as a starting point, and the topology information of the room division device (compared with a standard binary tree structure, where individual branches are trifurcated) is output by using the relationship between the power divider/coupler/antenna and the feeder line, so as to prepare for subsequent positioning of the root cause node of the problem.

In step S130, the graphic information database may include data of an icon, a name, a longitude and latitude, a floor, RSRP (Reference Signal Receiving Power) data of the antenna, an icon, a name, a longitude and latitude, a floor, and the like of a superior device (e.g., a Power divider, a coupler, an RRU, and the like) of the antenna. The graphic information database may be a vector layer to which the test software is applicable.

In step S140, the test data may be signal strength indoors, e.g., RSRP data of the antenna.

In step S150, since the indoor structure is complex, the farther away from the antenna, the greater the probability that the signal is blocked, and to ensure the accuracy of the calculation, the antenna power may be calculated by using a filtering method, and the implementation manner of the method may be as follows:

1. and filtering sampling points outside X meters of the antenna (the X default value is 2 meters, and the X default value can be set according to the actual situation), and counting the average RSRP of all the sampling points in the X meters to calculate the power of the antenna point.

2. The 5% low and 5% high samples are removed and only the middle 90% of the samples are calculated. And extreme values of sampling points are avoided, and result errors are avoided.

The antenna point power is equal to the average RSRP of the sampling points within the computed area computed by the filtering method.

In step S160, an antenna power diagnosis result is output, and if the antenna point power is greater than or equal to the antenna point power normality decision threshold (for example, -75dbm), it is determined that the antenna power is normal, and the antenna is accepted. Therefore, the embodiment of the invention can realize the antenna full-scale acceptance of the network access cell based on graphic information database, and is used for indoor coverage intelligent positioning.

Therefore, the embodiment can realize the digitization of the drawing information by independently developing the drawing information extraction function, and extract key information such as the coordinates of the antenna points, the drawing scale, the room division topological relation and the like in batches. And converting the drawing into a vector layer to realize self-matching of the test data and the antenna points and obtain the output power of each antenna point. The method can be used for automatic check and acceptance of the indoor branch, can realize automatic and full check and acceptance of the power of all antenna points of the indoor branch station, and improves the efficiency of the antenna check and acceptance.

In some embodiments, on the basis of the above embodiments, the following steps can be added: s170, judging that the antenna is in weak coverage fault when the antenna power is smaller than a judgment threshold; s180, traversing the N-ary tree of the topological structure according to the weak coverage fault condition of the antenna, and generating a traversal fault result of the indoor distribution device; s190, collecting operation data of a superior device; and S1100, correlating the traversal fault result and the operation data, and positioning the fault of the indoor sub-device based on the weak coverage root cause node positioning algorithm.

In step S170, an antenna power diagnosis result is output, and if the antenna point power is smaller than the antenna point power normal decision threshold (for example, -75dbm), it is determined that the antenna power is abnormal (antenna weak coverage fault).

In step S180, N is equal to or greater than 2, the leaf node of the N-ary tree corresponds to the antenna, and the upper node of the leaf node corresponds to the upper device. The contents of the N-ary tree are further described below.

As an alternative embodiment, step S180 may include the steps of: s181, traversing the N-way tree of the topological structure, and judging whether the leaf node fails; s182, when all leaf nodes of the upper node are in fault, judging that the upper node is in fault; and S183, stopping traversing the N-ary tree when the upper-level node is the root node.

In step S190, the operation data may include WLAN (Wireless Local Area network)/LTE combining information, RRU quality alarm, network access time, and other information.

In step S1100, the weak coverage root cause node location algorithm includes at least one of the following determinations: when the fault rate of an antenna point under a radio remote unit RRU is larger than or equal to an antenna fault rate threshold and the RRU has no quality alarm, judging a hidden fault of the RRU or a fault of a main combiner; when the fault rate of an RRU (remote radio unit) down-hanging antenna point is smaller than the fault rate threshold of an antenna, and the number of weak coverage floors is larger than or equal to the number threshold of the weak coverage floors, judging that the distribution system is damaged; when the WLAN-LTE-Combiner parameter is set to be 1, the overlapping degree of the LTE weak coverage floor and the AP (Wireless Access Point) coverage floor is more than or equal to the threshold of the LTE weak coverage floor, and the overlapping degree is more than or equal to the threshold of the combined AP coverage floor, the WLAN Combiner is judged not to support the LTE frequency band; when the number of the antenna point failures in the floor is smaller than the antenna failure rate threshold and all the antenna points hung below the power divider or the antenna points hung below the coupler fail, judging that the branch device fails; when the reference signal received power RSRP of the strongest antenna point is smaller than the judgment threshold of the antenna power low RSRP, the upper node of the antenna point has no fault, and the network access time of the cell is more than or equal to the network access days of the cell, judging the aging fault of the antenna; when the RSRP of the antenna point is greater than the RSRP judgment threshold of the antenna fault, and the deviation value of the designed position and the actual position of the antenna is greater than the RSRP judgment threshold of the antenna position, judging that the antenna installation position does not have the fault; and when the cell network access time is less than the cell network access days and the RSRP of the strongest antenna point is less than the RSRP decision threshold of low antenna power, judging that the antenna is in a missing fault.

In some embodiments, the indoor coverage intelligent positioning is based on binary tree post-order traversal of the indoor distribution topology, and associates WLAN/LTE combining information, RRU quality alarm, network access time, and other information, and may position one or more of the following 6 types of faults of indoor distribution devices:

1. a trunk combiner fault or an RRU recessive fault.

2. The distribution system is broken down.

3. The WLAN combiner does not support LTE band failures.

4. The bypass device fails.

5. The antenna age failure.

6. And the antenna construction and design are inconsistent, and the like.

The following describes the above six types of failures in detail one by one.

The first type of fault is an RRU hidden fault or a trunk combiner fault.

In order to find the problems of the RRU hidden fault, the redundant attenuator at the lower end of the RRU, the misconnection of the port of the trunk combiner, the aging of the trunk feeder line, and the like, the embodiment of the present invention sets up a method for diagnosing the RRU hidden fault or the trunk combiner fault, and the determination conditions can be as follows: the ratio of the faults of the RRU lower-hanging antenna is large (for example, the ratio of the RRU lower-hanging faulty antenna is larger than 90%), and the background has alarms which directly cause weak coverage without standing wave, retreat from service, flash, too low output filter and the like.

The second type of failure, a distributed system corrupted failure.

Aiming at the problem that the distribution system is damaged by people such as property, the following conditions are met and the distribution system is positioned to be damaged: the ratio of the faults of the antennas under the RRU is small as a whole (for example, the ratio of the faulty antennas under the RRU is less than 50%), the faulty antennas are mainly concentrated on partial floors (the ratio of the faulty antennas under the floors is more than a threshold and is defined as a faulty floor, the number of the faulty floors is more than 2), and the network access time of the station is long (for example, more than 1 year).

And in the third type of fault, the WLAN combiner does not support the LTE frequency band fault.

As shown in fig. 4, an LTE RRU401 and a WLAN AP402 on the backbone are connected to a combiner 403. The combiner 403 is connected to the combiner 406 and the combiner 407 on the branch, respectively. WLAN AP404 is connected to combiner 406 and WLAN AP405 is connected to combiner 407. The combiner 406 and the combiner 407 are communicatively connected to a DAS (distributed antenna system) 408.

In the embodiment of the invention, the trunk combiner of the weak electric well can be checked out by priority, and the frequency band which is not supported by the trunk combiner can be checked out. Secondly, the fact that the WLAN combiner does not support the LTE frequency band can be found out through checking the combiner in the flat weak electric well or the suspended ceiling. For example, for the problem of weak coverage caused by that a large number of LTE/WLAN combiner sites have WLAN combiners that do not support LTE bands, an algorithm that the WLAN combiners do not support LTE bands is formulated, and the determination condition may be as follows: the WLAN/LTE combination exists in the indoor branch point, and strong correlation exists between the LTE weak coverage floor and the coverage floor of the AP combination (for example, the correlation coefficient is more than 90%). The correlation coefficient is equal to the number of the weak coverage floors of the combining LTE/the number of the coverage floors of the combining WLAN AP, the value is 0% -100%, and the larger the coefficient is, the stronger the correlation is.

The fourth type of failure, bypass device failure.

Aiming at the problem of local weak coverage of a single floor caused by the fault of a branch power divider/coupler, when the condition that weak coverage occurs to the single power divider/coupler downward-hanging antenna in the following single floor is met, but the coverage of the downward-hanging antenna of other devices at the same level is normal, the fault of the branch device is judged.

In this context, "/" may mean "or".

Fig. 5(a) is a schematic diagram of the location of a fault node in a 2-way tree according to an embodiment of the present invention.

As shown in fig. 5(a), in the 2-way tree, the root node T1501 may be a coupler. The leaf node 503 may be Ant (antenna) 1. The leaf node 504 may be Ant 2. The leaf node 505 may be Ant 3. The leaf node 503 and the upper node PS 1502 of the leaf node 504 may be power dividers. When the leaf node 503Ant1 and the leaf node 504Ant2 all fail, it can be determined that the power divider of the upper node PS 1502 fails.

As shown in fig. 5(b), on the basis that the embodiment shown in fig. 5(a) judges that the PS 1502 fails, when the PS 1502 and Ant 3505 all fail, it may be judged that the coupler of the upper node T1501 fails.

The fifth type of failure, antenna aging failure.

In the embodiment of the invention, in order to find the weak coverage problem caused by antenna neglected installation, damage, aging and disconnection, an antenna fault aging diagnosis method is established, and the judgment conditions are as follows: there is no strong signal point (i.e. the strongest signal strength < the antenna power low RSRP decision threshold) around the antenna design position, and the network access time of the station is long (for example, more than 180 days).

And the sixth fault is a fault that the antenna construction and design are inconsistent.

In the embodiment of the invention, the problems of inconsistent construction and design, such as incorrect position of the antenna assembly, missing antenna assembly and the like, can be judged based on a three-point positioning algorithm. Judging that the construction is inconsistent with the design when the following conditions are met: 1. the antenna is installed at different positions: and calculating the distance difference between the designed position of the antenna and the actual position of the antenna if the distance difference is larger than an antenna deviation threshold (for example, 2 meters). 2. Antenna neglected installation: there is no strong signal point (i.e. the strongest signal strength < the antenna power low RSRP decision threshold) around the antenna design position, and the station has a short network access time or is an engineering station (for example, less than 180 days).

Therefore, the embodiment can realize the background accurate positioning of the indoor coverage problem by independently developing the indoor coverage intelligent positioning function and comprehensively analyzing information such as associated test data, antenna information, indoor branch topological structure, WLAN/LTE combiner information, RRU quality alarm, network access time and the like, and comprises the problems of positioning RRU hidden faults, trunk combiner faults, damaged distribution system, non-support of LTE frequency band by the WLAN combiner, branch device faults, antenna fault aging, inconsistent antenna construction and design and the like.

As shown in fig. 6, a point 601 is an antenna design position, and a point 602B is an antenna actual position. The 3 points around the point B602 are the three strongest RSRP sample points within 2 meters from the point B: RSRP TOP 1603, RSRP TOP 2604, and RSRP TOP 3605.

Wherein, the three-point positioning method can be calculated as follows: an antenna design position A point 601 is an antenna point coordinate on a drawing, an antenna actual position B point 602 is an average position of three strongest RSRP sampling points within a range of N meters (N can be taken according to an antenna general coverage radius) of an antenna point design position, and a distance between the antenna design position and the actual position is defined as an antenna position deviation.

In summary, the weak coverage root cause node location algorithm is shown in the following table (1):

watch (1)

The decision threshold and values are shown in table (2) below:

watch (2)

And the traversal rate of the antenna points hung under the RRU is equal to the number of antennas tested under the RRU/the number of antennas planned under the RRU.

And the floor antenna traversal rate is the number of antennas tested by a single floor/the number of floor planning antennas.

And the time of network access of the cell is equal to the interval days between the diagnosis date and the single-test passing date of the cell.

The antenna bias threshold is: and the distance difference between the antenna design position and the installation position is limited.

In addition, in the case of no conflict, those skilled in the art can flexibly adjust the order of the above operation steps or flexibly combine the above steps according to actual needs. Various implementations are not described again for the sake of brevity. In addition, the contents of the various embodiments may be mutually incorporated by reference.

As shown in fig. 7, the apparatus 700 may include: a first obtaining unit 710, a second obtaining unit 720, a database generating unit 730, a data collecting unit 740, a power calculating unit 750 and an antenna acceptance unit 760. The first obtaining unit 710 may be configured to obtain a position of an antenna in an antenna feed plan and a scale of the antenna feed plan; the second obtaining unit 720 may be configured to obtain a topology of the room division device, where the room division device includes an antenna and an upper device of the antenna; the database generation unit 730 may be configured to generate a graph information database of the indoor sub-devices according to the position, the scale, and the topology of the antenna; the data collection unit 740 may be configured to collect test data of the antenna according to the position of the antenna; the power calculation unit 750 may be configured to match the test data with the positions of the antennas in the graph information database one by one, and calculate the antenna power successfully matched; the antenna acceptance unit 760 may be configured to accept the antenna with the antenna power greater than or equal to the decision threshold.

It should be noted that the implementation manner of the functional units or the functional modules shown in the embodiments of the present invention may be hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.

As a modified embodiment of the embodiment shown in fig. 7, the embodiment shown in fig. 7 may be added with: the system comprises a fault judgment unit, a fault traversal unit, a data acquisition unit and a fault positioning unit. The fault determination unit can be used for determining that the antenna weak coverage fault is caused when the antenna power is smaller than a decision threshold; the fault traversal unit can be used for traversing an N-branch tree of a topological structure according to the weak coverage fault condition of the antenna to generate a traversal fault result of the room-divided device, wherein N is more than or equal to 2, leaf nodes of the N-branch tree correspond to the antenna, and upper nodes of the leaf nodes correspond to the upper devices; the data acquisition unit can be used for acquiring the operation data of the superior device; the fault positioning unit can be used for correlating and traversing fault results and operation data and positioning the faults of the indoor sub-devices based on a weak coverage root cause node positioning algorithm.

It should be noted that the apparatuses in the foregoing embodiments can be used as the execution main body in the methods in the foregoing embodiments, and can implement corresponding processes in the methods to achieve the same technical effects, and for brevity, the contents of this aspect are not described again.

In some embodiments, the fault traversal unit may include: the device comprises a first judging module, a second judging module and a traversal stopping module. The first judging module can be used for traversing the N-branch tree of the topological structure and judging whether the leaf node fails; the second determination module may be configured to determine that the upper node has a fault when all leaf nodes of the upper node have a fault; the traversal stopping module may be configured to stop traversing the N-ary tree when the upper level node is the root node.

In some embodiments, the failure of the chamber component comprises at least one of: the method comprises the following steps of RRU hidden faults, trunk combiner faults, distribution system damaged faults, failure that a WLAN combiner does not support LTE frequency band, branch device faults, antenna aging faults and antenna construction and design inconsistent faults.

In some embodiments, the weak coverage root cause node location algorithm comprises at least one of the following determinations:

when the fault rate of an antenna point of the RRU lower hook is larger than or equal to the antenna fault rate threshold, and the RRU has no quality alarm, judging a hidden fault of the RRU or a fault of a main combiner;

when the fault rate of an RRU (remote radio unit) down-hanging antenna point is smaller than the fault rate threshold of an antenna, and the number of weak coverage floors is larger than or equal to the number threshold of the weak coverage floors, judging that the distribution system is damaged;

when the WLAN-LTE-Combiner parameter is set to be 1, the overlapping degree of the LTE weak coverage floor and the AP coverage floor is more than or equal to the threshold of the LTE weak coverage floor, and the overlapping degree is more than or equal to the threshold of the combined AP coverage floor, the WLAN Combiner is judged not to support the LTE frequency band fault;

when the number of the antenna point failures in the floor is smaller than the antenna failure rate threshold and all the antenna points hung below the power divider or the antenna points hung below the coupler fail, judging that the branch device fails;

when the RSRP of the strongest antenna point is smaller than the RSRP judgment threshold of the antenna power, the superior node of the antenna point has no fault, and the network access time of the cell is larger than or equal to the network access days of the cell, judging the aging fault of the antenna;

when the RSRP of the antenna point is greater than the RSRP judgment threshold of the antenna fault, and the deviation value of the designed position and the actual position of the antenna is greater than the RSRP judgment threshold of the antenna position, judging that the antenna installation position does not have the fault;

and when the cell network access time is less than the cell network access days and the RSRP of the strongest antenna point is less than the RSRP decision threshold of low antenna power, judging that the antenna is in a missing fault.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. An acceptance method of an indoor coverage antenna is characterized by comprising the following steps:

acquiring a topological structure of a room division device, wherein the room division device comprises the antenna and an upper-level device of the antenna;

generating a graphic information database of the chamber division device according to the position of the antenna, the scale and the topological structure;

acquiring test data of the antenna according to the position of the antenna;

matching the test data with the positions of the antennas in the graph information database one by one, and calculating the antenna power successfully matched;

the antenna power is greater than or equal to a decision threshold, and the antenna is checked and accepted;

the method further comprises the following steps:

judging the weak coverage fault of the antenna when the antenna power is smaller than a judgment threshold;

traversing an N-branch tree of the topological structure according to the weak coverage fault condition of the antenna, and generating a traversal fault result of the room-division device, wherein N is greater than or equal to 2, leaf nodes of the N-branch tree correspond to the antenna, and upper nodes of the leaf nodes correspond to the upper devices;

collecting the operation data of the superior device;

and correlating the traversal fault result with the operation data, and positioning the fault of the chamber component based on a weak coverage root cause node positioning algorithm.

2. The method of claim 1, wherein traversing the N-ary tree of the topology to generate a traversal fault result for the chamber component based on a weak coverage fault condition of the antenna comprises:

traversing the N-ary tree of the topological structure, and judging whether the leaf node fails;

when all leaf nodes of the superior node have faults, judging that the superior node has faults;

stopping traversing the N-ary tree when the superior node is a root node.

3. The method of claim 1, wherein the failure of the chamber component comprises at least one of:

the method comprises the following steps that an RRU hidden fault, a trunk combiner fault, a distribution system damaged fault and a wireless local area network WLAN combiner do not support long term evolution LTE frequency band faults, branch device faults, antenna aging faults and antenna construction and design inconsistency faults.

4. The method according to any of claims 1-3, wherein the weak coverage root cause node location algorithm comprises at least one of the following decisions:

when the fault rate of an antenna point under a radio remote unit RRU is larger than or equal to an antenna fault rate threshold and the RRU has no quality alarm, judging a hidden fault of the RRU or a fault of a main combiner;

when the WLAN-LTE-Combiner parameter is set to be 1, the overlapping degree of the LTE weak coverage floor and the wireless access point AP coverage floor is greater than or equal to the threshold of the LTE weak coverage floor, and the overlapping degree is greater than or equal to the threshold of the combined AP coverage floor, the WLAN Combiner is judged not to support the LTE frequency band;

when the reference signal received power RSRP of the strongest antenna point is smaller than the judgment threshold of the antenna power low RSRP, the upper node of the antenna point has no fault, and the network access time of the cell is more than or equal to the network access days of the cell, judging the aging fault of the antenna;

5. An acceptance device for an indoor coverage antenna, comprising:

the first acquisition unit is used for acquiring the position of an antenna in an antenna feed plan and a scale of the antenna feed plan;

a second obtaining unit, configured to obtain a topology of a chamber component, where the chamber component includes the antenna and a superior device of the antenna;

the database generating unit is used for generating a graphic information database of the chamber division device according to the position of the antenna, the scale and the topological structure;

the data acquisition unit is used for acquiring the test data of the antenna according to the position of the antenna;

the power calculation unit is used for matching the test data with the positions of the antennas in the graph information database one by one and calculating the antenna power successfully matched;

the antenna acceptance unit is used for accepting the antenna when the antenna power is greater than or equal to a judgment threshold;

the device further comprises:

the fault judging unit is used for judging the weak coverage fault of the antenna when the antenna power is smaller than a judgment threshold;

the fault traversal unit is used for traversing an N-branch tree of the topological structure according to the weak coverage fault condition of the antenna to generate a traversal fault result of the room-division device, wherein N is greater than or equal to 2, leaf nodes of the N-branch tree correspond to the antenna, and upper nodes of the leaf nodes correspond to the upper devices;

the data acquisition unit is used for acquiring the operating data of the superior device;

and the fault positioning unit is used for correlating the traversal fault result with the operation data and positioning the fault of the room division device based on a weak coverage root cause node positioning algorithm.

6. The apparatus of claim 5, wherein the fault traversal unit comprises:

the first judging module is used for traversing the N-branch tree of the topological structure and judging whether the leaf node fails or not;

the second judging module is used for judging that the superior node has a fault when all leaf nodes of the superior node have faults;

and the traversal stopping module is used for stopping traversing the N-branch tree when the superior node is the root node.

7. The apparatus of claim 5, wherein the failure of the chamber subassembly comprises at least one of:

the method comprises the following steps of RRU hidden faults, trunk combiner faults, distribution system damaged faults, failure that a WLAN combiner does not support LTE frequency band, branch device faults, antenna aging faults and antenna construction and design inconsistent faults.

8. The apparatus according to any of claims 5-7, wherein the weak coverage root cause node location algorithm comprises at least one of:

when the fault rate of an antenna point of a lower-hanging RRU is larger than or equal to the antenna fault rate threshold and the RRU has no quality alarm, judging a hidden fault of the RRU or a fault of a main combiner;