CN105764081B

CN105764081B - Method, base station, network management system and system for detecting communication link

Info

Publication number: CN105764081B
Application number: CN201410789689.0A
Authority: CN
Inventors: 吕凤
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2014-12-17
Filing date: 2014-12-17
Publication date: 2020-03-13
Anticipated expiration: 2034-12-17
Also published as: WO2016095718A1; CN105764081A

Abstract

The invention relates to a method, a base station, a network manager and a system for detecting a communication link, wherein the method comprises the following steps: a base station receives a diagnosis request sent by a network manager; selecting an RRU topological structure where a target RRU single board is located according to the diagnosis request; collecting fault detection point information of a communication link between the BBU and the RRU based on the selected RRU topological structure; and summarizing the collected fault detection point information and then sending the collected fault detection point information to a network manager, analyzing and diagnosing the fault detection point information by the network manager, and presenting a diagnosis result to a user. The invention solves the problems of information collection, comprehensive analysis and result presentation in the prior art, improves the efficiency of positioning BBU-RRU communication link faults and further reduces the maintenance cost of the base station.

Description

Method, base station, network management system and system for detecting communication link

Technical Field

The invention relates to the technical field of communication, in particular to a method, a base station, a network manager and a system for detecting a communication link between a BBU (base band unit) -RRU (remote radio unit).

Background

Under a BBU (baseband processing unit) -RRU (radio remote unit) architecture of a base station, RRUs are connected in a remote mode through optical fiber cables, once the RRUs are not detected, namely the RRU chain breakage phenomenon occurs, it is difficult to know which part of a link has a problem, and especially under the condition that a transmission environment is unstable or a bottom layer drive is abnormal, the reason of the link failure cannot be known.

At present, for the RRU chain breakage phenomenon occurring in the base station, a general processing method is as follows: through the network management alarm prompt, the maintainers plug and replace elements step by step according to experience to tentatively eliminate faults. However, the alarm is often caused by a plurality of fault points, and for a BBU-RRU communication link, which is an integrated system involving a plurality of hardware devices and transmission media, it is necessary to try to remove the fault many times, and it is necessary to perform integrated analysis by means of a plurality of alarms, which is too high for maintenance personnel.

Disclosure of Invention

The invention mainly aims to provide a method, a base station, a network manager and a system for detecting a communication link between a BBU (base band unit) -RRU (remote radio unit), aiming at improving the efficiency of positioning faults of the communication link between the BBU and the RRU and further reducing the maintenance cost of the base station.

In order to achieve the above object, the present invention provides a method for detecting a communication link, including:

a base station receives a diagnosis request sent by a network manager, wherein the diagnosis request carries a target RRU single board selected by a user;

selecting an RRU topological structure where the target RRU single board is located according to the diagnosis request;

collecting fault detection point information of a communication link between the BBU and the RRU based on the selected RRU topological structure;

and summarizing the collected fault detection point information and then sending the collected fault detection point information to a network manager, and analyzing and diagnosing the fault detection point information by the network manager.

Preferably, the step of collecting the information of the fault detection point of the communication link between the BBU and the RRU based on the selected RRU topology includes:

the base station searches and collects the manual operation condition of an optical outlet plate and each level of RRU and the base station software operation condition information from the RRU topological structure in a parallel query mode;

the base station searches and collects information of an optical outlet plate, RRUs at all levels, an optical module and a cable from the RRU topological structure in a serial query mode;

and summarizing the collected information of each fault detection point to be used as the information of the fault detection point of the communication link between the BBU and the RRU.

Preferably, the RRU topology is one of a star topology, a cascade topology, a ring network topology, a link-add-link topology, and a dual-uplink topology.

The embodiment of the invention also provides a method for detecting the communication link, which comprises the following steps:

a network manager acquires a target RRU single board selected by a user;

initiating a diagnosis request based on the target RRU single board to a base station;

receiving fault detection point information which is collected, gathered and returned by the base station according to the diagnosis request;

and analyzing and diagnosing the information of the fault detection points to obtain the fault state of the fault detection points, and presenting the fault state to a user.

Preferably, the step of analyzing and diagnosing the information of the fault detection point by the network manager to obtain the fault state of the fault detection point and presenting the fault state to the user includes:

the network management detects whether the link of the target RRU single board is abnormal;

when the hardware link of the target RRU single board is detected to be abnormal, analyzing and diagnosing an optical outlet board, each stage of RRUs, an optical module, a cable, base station operation and software operation conditions in sequence according to a set priority to obtain a fault state of a corresponding fault detection point;

when detecting that the hardware link of the target RRU single board is normal, detecting whether the software link of the target RRU single board is abnormal;

when the software link of the target RRU single board is detected to be abnormal, detecting the manual operation and software running conditions of a base station;

and presenting the obtained fault state of the fault detection point and a corresponding repair suggestion to a user.

Preferably, when detecting that the hardware link of the target RRU board is abnormal, the step of sequentially analyzing and diagnosing the optical outlet board, each level of RRU, the optical module and the cable, and the base station operation and software operation conditions according to a set priority to obtain the fault state of the corresponding fault detection point includes:

the network manager detects whether the light outlet plate of the target RRU single plate is abnormal;

if the optical outlet board of the target RRU single board is detected to be abnormal, obtaining the fault state of the corresponding fault detection point;

if the optical outlet board of the target RRU single board is detected to be normal, detecting the optical module of the target RRU and the condition of a cable connected with the RRU;

if the optical module of the target RRU and the cable connected with the RRU are detected to be abnormal, obtaining the fault state of the corresponding fault detection point;

and if the optical module of the target RRU and the cable connected with the RRU are detected to be normal, detecting the condition of each stage of RRU to obtain the fault state of the corresponding fault detection point of each stage of RRU.

The embodiment of the present invention further provides a base station for detecting a communication link, including:

a request receiving module, configured to receive a diagnosis request sent by a network manager, where the diagnosis request carries a target RRU single board selected by a user;

a selecting module, configured to select, according to the diagnosis request, an RRU topology structure in which the target RRU single board is located;

the collection module is used for collecting the information of fault detection points of the communication link between the BBU and the RRU based on the selected RRU topological structure;

and the sending module is used for summarizing the collected fault detection point information and then sending the summarized fault detection point information to a network manager, and the network manager analyzes and diagnoses the fault detection point information.

Preferably, the collection module is further configured to search and collect information on an optical outlet board, manual operation conditions of each stage of RRUs, and base station software operation conditions from the RRU topology structure in a parallel query manner; searching and collecting information of an optical outlet plate, each stage of RRUs, an optical module and a cable from the RRU topological structure in a serial query mode; and summarizing the collected information of each fault detection point to be used as the information of the fault detection point of the communication link between the BBU and the RRU.

The embodiment of the present invention further provides a network manager for detecting a communication link, including:

the acquisition module is used for acquiring a target RRU single board selected by a user;

a request initiating module, configured to initiate a diagnosis request based on the target RRU single board to a base station;

the information receiving module is used for receiving fault detection point information which is collected, gathered and returned by the base station according to the diagnosis request;

and the analysis and diagnosis module is used for carrying out analysis and diagnosis on the information of the fault detection points to obtain the fault states of the fault detection points and presenting the fault states to a user.

Preferably, the analysis and diagnosis module is further configured to detect whether a link of the target RRU board is abnormal; when the hardware link of the target RRU single board is detected to be abnormal, analyzing and diagnosing an optical outlet board, each stage of RRUs, an optical module, a cable, base station operation and software operation conditions in sequence according to a set priority to obtain a fault state of a corresponding fault detection point; when detecting that the hardware link of the target RRU single board is normal, detecting whether the software link of the target RRU single board is abnormal; when the software link of the target RRU single board is detected to be abnormal, detecting the manual operation and software running conditions of a base station; and presenting the obtained fault state of the fault detection point and a corresponding repair suggestion to a user.

Preferably, the analysis and diagnosis module is further configured to detect whether an optical outlet board of the target RRU single board is abnormal; if the optical outlet board of the target RRU single board is detected to be abnormal, obtaining the fault state of the corresponding fault detection point; if the optical outlet board of the target RRU single board is detected to be normal, detecting the optical module of the target RRU and the condition of a cable connected with the RRU; if the optical module of the target RRU and the cable connected with the RRU are detected to be abnormal, obtaining the fault state of the corresponding fault detection point; and if the optical module of the target RRU and the cable connected with the RRU are detected to be normal, detecting the condition of each stage of RRU to obtain the fault state of the corresponding fault detection point of each stage of RRU.

The embodiment of the present invention further provides a system for detecting a communication link, including: a base station and a network manager; wherein:

the network management is used for acquiring a target RRU single board selected by a user and initiating a diagnosis request based on the target RRU single board to a base station;

the base station is used for selecting an RRU topological structure where the target RRU single board is located according to the diagnosis request, collecting fault detection point information of a communication link between the BBU and the RRU based on the selected RRU topological structure, and sending the collected fault detection point information to a network manager after summarizing;

and the network manager is also used for analyzing and diagnosing the information of the fault detection points to obtain the fault states of the fault detection points and presenting the fault states to a user.

The embodiment of the invention provides a method, a base station, a network manager and a system for detecting a communication link between a BBU (base band unit) -RRU (remote radio unit), wherein the network manager acquires a target RRU single board selected by a user and initiates a diagnosis request based on the target RRU single board to the base station; the base station selects an RRU topological structure where a target RRU single board is located according to the diagnosis request, collects fault detection point information of a communication link between a BBU and an RRU based on the selected RRU topological structure, and sends the collected fault detection point information to a network manager after gathering; and the network manager analyzes and diagnoses the information of the fault detection points to obtain the fault states of the fault detection points and present the fault states to the user. Therefore, by adopting BBU-RRU communication link diagnosis, the problems of information collection, comprehensive analysis and result presentation in the prior art are solved, the efficiency of locating BBU-RRU communication link faults is improved, and the maintenance cost of the base station is reduced.

Drawings

FIG. 1 is a flowchart illustrating an embodiment of a method for detecting a communication link according to the present invention;

FIG. 2 is a diagram illustrating a system architecture for detecting a communication link according to an embodiment of the present invention;

FIG. 3 is a diagram of a data analysis model of a network manager of a communication link between a BBU and a RRU according to an embodiment of the present invention;

fig. 4 is a data analysis flow chart of analysis and diagnosis performed by a network manager of a communication link between a BBU and a RRU according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a specific process of data analysis performed by traversal of a parent RRU of the RRUs in fig. 4;

FIG. 6 is a flowchart illustrating a method of detecting a communication link according to another embodiment of the present invention;

FIG. 7 is a functional block diagram of an embodiment of a base station for detecting a communication link according to the present invention;

fig. 8 is a functional module diagram of an embodiment of a network manager for detecting a communication link according to the present invention.

In order to make the technical solution of the present invention clearer and clearer, the following detailed description is made with reference to the accompanying drawings.

Detailed Description

The solution of the embodiment of the invention is mainly as follows: a network manager acquires a target RRU single board selected by a user and initiates a diagnosis request based on the target RRU single board to a base station; the base station selects an RRU topological structure where a target RRU single board is located according to the diagnosis request, collects fault detection point information of a communication link between a BBU and an RRU based on the selected RRU topological structure, and sends the collected fault detection point information to a network manager after gathering; and the network manager analyzes and diagnoses the information of the fault detection points to obtain the fault states of the fault detection points and present the fault states to the user. Therefore, by adopting BBU-RRU communication link diagnosis, the problems of information collection, comprehensive analysis and result presentation in the prior art are solved, the efficiency of locating BBU-RRU communication link faults is improved, and the base station maintenance cost is further reduced.

Specifically, as shown in fig. 1, an embodiment of the present invention provides a method for detecting a communication link, including:

step S101, a base station receives a diagnosis request sent by a network manager, wherein the diagnosis request carries a target RRU single board selected by a user;

the scheme of the embodiment relates to a base station and a network manager, and the base station side and the network manager side are respectively provided with corresponding functional modules according to requirements. The system architecture can be as shown in fig. 2, and the network manager can manage the fault detection point information of a plurality of base station sites. Each base station site is composed of a BBU and a plurality of RRUs, the topology structures of the RRUs can be star topology, cascade topology, ring network topology, ring-added-chain topology, double-uplink topology and the like, various configuration topologies correspondingly support different wireless products, and the method provided by the embodiment of the invention is suitable for various topology structures.

Specifically, firstly, a network management side initiates a diagnosis request to a base station side according to a to-be-diagnosed RRU single board selected by a user. The diagnosis request carries a target RRU single board selected by the user.

Step S102, selecting the RRU topological structure of the target RRU single board according to the diagnosis request;

step S103, collecting fault detection point information of a communication link between the BBU and the RRU based on the selected RRU topological structure;

after receiving a diagnosis request sent by a network manager, a base station side selects an RRU topological structure where the target RRU single board is located, and collects information of all possible fault detection points according to the base station topological structure, wherein the information comprises the following steps: the system comprises an optical outlet plate, RRUs at all levels, an optical module and a cable, base station manual operation and base station software operation conditions and the like, wherein the base station manual operation and the base station software operation conditions can cause RRU chain breakage.

Specifically, when the base station collects the information of the fault detection point of the communication link between the BBU and the RRU, the following scheme may be adopted:

firstly, searching and collecting an optical outlet plate, manual operation conditions of each stage of RRU and base station software operation condition information from the RRU topological structure in a parallel query mode;

and then, searching and acquiring information of an optical outlet plate, each stage of RRUs, an optical module and a cable from the RRU topological structure in a serial query mode.

And finally, collecting the collected information of each fault detection point as the information of the fault detection point of the communication link between the BBU and the RRU.

In practical application, when the base station performs data acquisition of the fault detection point, a basic query framework can be established to manage the information acquisition process of the fault detection point.

The base station obtains a complete set of fault detection points which may need to be detected from a base station RRU topological structure according to target RRU single board information sent by a network manager, correspondingly generates a plurality of query processes, and fills a basic query framework according to the characteristics of a diagnosis request. And the query basic framework controls the orderly execution of all query processes.

The basic query framework is a data query process scheduling control system, and sequentially schedules each query process in a parallel query mode and a serial query mode according to a diagnosis request starting strategy. The method comprises the functions of starting, stopping, data analysis and data summarization.

The parallel query mode consists of query processes which can be started simultaneously and parallelly. The serial inquiry mode is composed of one or more inquiry processes, and after the parallel inquiry mode is executed, the inquiry processes are executed in series.

In the filling query process, for parallel query and serial query, a parallel query mode is preferably selected to shorten the time required by query. If the diagnosis request item has an exclusive characteristic, a serial inquiry mode is selected.

For the diagnosis request of the BBU-RRU communication link, parallel query is composed of a query process of acquiring the manual operation condition of the optical outlet board and each level of RRU and the base station software operation condition information. The serial query comprises a query process of acquiring information of the optical outlet plate, each stage of RRUs, the optical module and the cable.

In addition, a timeout time may be preset for each detection process, and a timer count is started when the inquiry process starts to be executed. If no query result is returned after the timing time, the query process is ended.

In addition, detection of redundant fault detection points should also be avoided in the query launch strategy.

In the process of data acquisition, the next query process is selectively started by analyzing the finished query process result, so that the detection of the redundant fault detection point is prevented from influencing the service on the RRU for normally establishing the link. And when the RRU link is normal, namely the loopback of the bottom hardware logic device and the high-level software link are normal, the communication link between the BBU and the RRU is considered to be normal. At this time, it is not necessary to collect the fault detection point information of the relevant optical outlet board, the RRU and the optical module cable.

And step S104, summarizing the collected fault detection point information and then sending the summarized fault detection point information to a network manager, and analyzing and diagnosing the fault detection point information by the network manager.

And then, the base station collects the collected information of the fault detection points and sends the collected information back to the network manager. And after receiving the information of the fault detection point, the network manager analyzes the diagnosis data, comprehensively judges the state of the fault detection point, processes suggestions, presents detailed information and the like to a user.

The process of analyzing and diagnosing the fault detection point information sent by the base station by the network manager can adopt the following scheme:

on the network management side, a diagnostic analysis model of the communication link between the BBU and the RRU is established, and four types of objects which affect the BBU-RRU communication link are mainly used: the system comprises an optical outlet plate, an RRU, an optical module, a cable, base station operation and software running conditions.

Firstly, a network manager detects the link condition of a target RRU single board, namely a software RUDP/TCP link and a hardware LOOPTEST link of the target RRU based on the conditions of all upper-level nodes in an RRU topological structure where the target RRU single board is located. If the link is normal, the detection is finished.

When the network manager detects that the hardware link of the target RRU single board is abnormal, the network manager sequentially analyzes and diagnoses the light outlet board, each stage of RRU, the optical module and the cable, and the operation condition of the base station and the software according to the set priority to obtain the fault state of the corresponding fault detection point.

When detecting that the hardware link of the target RRU single board is normal, detecting whether the software link of the target RRU single board is abnormal; and when the software link of the target RRU single board is detected to be abnormal, detecting the manual operation and software running conditions of the base station.

And finally, presenting the obtained fault state of the fault detection point and a corresponding repair suggestion to a user.

More specifically, if the software link is abnormal, the manual operation and software running condition of the base station is detected, and the abnormal software of the RRU of the base station and the manual reset of the RRU can be eliminated; if the hardware link is abnormal, the manual operation and software running conditions of the optical port board and the base station are detected, and the optical port board software abnormity, the optical port board manual reset, the optical port board power-off and the optical port board hardware faults can be eliminated.

If the detection of the light outlet plate is normal, the conditions of the optical module and the cable connected with the RRU are detected, and the hardware or configuration faults of the optical module and the cable faults can be eliminated.

And if the optical module and the cable connected with the RRU are normal, detecting the condition of each stage of RRU.

For each stage of RRU, the RRU with broken link is firstly positioned, and then the condition of the RRU and the condition of a lower-stage optical module and a cable are detected, so that RRU hardware faults, optical module hardware or configuration faults and cable faults can be eliminated.

And detecting the manual operation and software operation conditions of the base station according to the detection result of the optical module, and eliminating the power supply failure problem and RRU fault of the RRU.

Through the analysis and diagnosis process, the BBU-RRU communication link abnormity caused by the optical interface board, the optical module, the cable, the RRU, the base station software and which link of the fault points is manually operated can be obtained. And may be presented directly to the user as an accurate point of failure.

According to the scheme, the BBU-RRU communication link diagnosis is adopted, so that the problems of information collection, comprehensive analysis and result presentation in the prior art are solved, the efficiency of locating faults of the BBU-RRU communication link is improved, and the maintenance cost of the base station is reduced.

The following describes in detail the process of analyzing and diagnosing the fault detection point information sent from the base station by the network manager in the embodiment of the present invention with reference to the accompanying drawings:

as shown in fig. 3, fig. 3 is a data analysis model diagram of a network manager of a communication link between a BBU and a RRU in the embodiment of the present invention, where:

firstly, the network manager detects a target RRU link and judges whether the RRU software link and the RRU hardware link are normal. If abnormal, analyzing the fault point from the following four aspects:

and (3) analyzing faults of the light outlet plate: and analyzing whether the hardware fault of the light outlet board exists.

Optical module and cable fault analysis: whether the optical module is in place, rate matching, light or not, frame locking conditions, optical module hardware faults, optical module receiving power and threshold values, optical port self-loop conditions, optical fiber insertion errors, optical fiber breakage and the like are analyzed.

And RRU single-board fault analysis: and analyzing whether the RRU hardware fault exists.

Base station operation and software operation condition fault analysis: and analyzing whether manual operation reset of the light outlet board, power-off of the light outlet board, software exception of the light outlet board, RRU power failure, RRU initialization alarm, RRU version loading process reset, RRU software run-off reset, RRU manual operation reset and the like exist.

As shown in fig. 4, fig. 4 is a data analysis flow chart for performing analysis and diagnosis by a network manager of a communication link between a BBU and an RRU according to an embodiment of the present invention, which specifically includes:

step 400, selecting a target RRU to be diagnosed for a user, if a hardware link LOOPTEST result is on, entering step 401, otherwise, entering step 402;

step 401, performing an RRU software detection process;

firstly, judging whether the target RRU has a software link RUDP/TCP break, if so, judging whether the current RRU reports an initialization alarm, if not, returning a fault point that the RRU communication link is broken, namely, the RRU needs to be reset or replaced; if the initialization alarm is reported, returning the fault point of RRU reset, namely, eliminating the condition that the RRU reset is caused manually or caused by software version (version loading process, software running away).

If the software link is not broken, judging whether the RRU has a hardware fault alarm, if so, returning to a fault point that the RRU hardware is abnormal, and if not, returning to the RRU hardware to detect that no abnormality exists.

Step 402, if the LOOPTEST of the target RRU is not successful, detecting the software operation and hardware condition of the light outlet board FS of the topology where the target RRU is located.

Firstly, judging the FS link condition, if the link is broken, eliminating the optical interface board software abnormity, the optical interface board manual reset and the optical interface board power-off. If the link is normal, detecting LOOPTEST conditions of other RRUs on the topology, if the LOOPTEST conditions are not passed, judging an FS optical port SERDERS self-loop result of the link connected with the target RRU, and if the self-loop fails, returning to a fault point of FS hardware detection abnormity; if the self-loop is successful, judging whether the FS has a hardware fault alarm, if so, returning to a fault point of FS hardware detection abnormity. If the FS hardware detection is normal, go to step 403;

step 403, if some RRUs are in a condition of loop test on the topology, detecting the condition of an FS optical module;

first, whether or not the optical module is in place is detected, and if not, the return optical module is not in place. And detecting whether the optical module rates are matched or not, and returning a fault point of configuration error if the optical module rates are not matched. And detecting whether the hardware of the optical module is normal or not, and if so, returning to the fault point of the optical module fault.

If the optical module detection is normal, entering step 404;

step 404, detecting whether the optical fiber from the FS to the target RRU is normal;

specifically, whether the optical fibers are star-cross connected or not is detected, and if yes, a fault point that the optical fibers are connected wrongly is indicated. And detecting whether the optical fiber is in single pass or not, namely the transmitting optical fiber is broken, and if so, prompting the fault point that the optical fiber is broken.

If the optical fiber detection is normal, judging whether the target RRU is a first-stage RRU, if so, performing optical signal detection and base station software operation condition analysis, specifically referring to step 405; if the target RRU is not the first-stage RRU, the cascaded RRU detection is performed, and data analysis is performed by circularly using the parent RRU of the RRUs as the current RRU, specifically referring to each step in fig. 5, and fig. 5 is a schematic flow diagram of data analysis performed by traversal of the parent RRU of the circulating RRUs in fig. 4.

And 405, if the current single-board optical module is not lighted, continuously judging whether an RRU power failure alarm exists, if the RRU power failure alarm exists, returning to a fault point of checking an RRU external power supply, and if the RRU power failure alarm does not exist, returning to the fault point of fiber breakage. And if the optical power of the current single-board optical module is too low, returning to a fault point of optical fiber break or lower-level RRU fault. And if the current light exists but the current light is not locked, returning to the fault point that the lower-level RRU fails or the rate of the lower-level RRU optical module is not matched.

And 406, recording the upper-level RRU of the target RRU as the current RRU, and starting to identify the RRU step by step and entering into circulation.

Specifically, for a current RRU, whether a LOOPTEST link of the RRU is on is detected. If the LOOPTEST link of this RRU is up, the loop is ended.

And if the LOOPTEST is not connected, recording that the current RRU LOOPTEST link is not connected. And judging whether the upper node of the current RRU is FS or not, if not, setting the upper node of the current RRU as the current RRU, and continuing circulation. Until a LOOPTEST-on RRU is found or FS has been reached. If FS has been reached, RRU software detection is skipped. Otherwise, performing software detection on the current RRU.

When software detection is carried out on the current RRU, whether the RRU has an RUDP/TCP link failure or not is judged, if the RRU has the RUDP/TCP link failure, whether an initialization alarm is reported or not is judged, if the alarm is not reported, a fault point that the RRU communication link is broken is returned, the RRU needs to be reset or replaced, if the initialization alarm is reported, the fault point that the RRU is reset is returned, and whether the RRU reset is caused manually or caused by a software version (a version loading process, software running away) needs to be eliminated.

If the RUDP/TCP link is not broken, judging whether the RRU has a hardware fault alarm, if so, returning to a fault point of the RRU hardware abnormity, if not, detecting whether the RRU downlink optical module is in place, and if not, returning to the fault point of the RRU downlink optical module which is not in place. And detecting whether the optical module rates are matched or not, and returning a fault point of configuration error if the optical module rates are not matched. And detecting whether the hardware of the optical module is normal or not, and if so, returning to the fault point of the optical module fault. And detecting whether the optical module does not have light, if the optical module does not have light, continuously judging whether an RRU power failure alarm exists, if the RRU power failure alarm exists, returning to a fault point of checking an RRU external power supply, and if the RRU power failure alarm does not exist, returning to the fault point of optical fiber breakage. And detecting the optical power of the optical module, and if the optical power is too low, returning to a fault point of optical fiber break or lower-level RRU fault. And if the current optical module is light but not locked, returning to the fault point that the lower-level RRU fails or the rate of the lower-level RRU optical module is not matched.

The above process is also applicable to ring network, ring + chain and dual uplink topologies, and the topologies are characterized in that the optical outlet plate has two optical ports and a target RRU (remote radio unit) with communication links, and only the two optical ports are required to respectively analyze results.

In this embodiment, with the above scheme, a network manager obtains a target RRU single board selected by a user, and initiates a diagnosis request based on the target RRU single board to a base station; the base station selects an RRU topological structure where a target RRU single board is located according to the diagnosis request, collects fault detection point information of a communication link between a BBU and an RRU based on the selected RRU topological structure, and sends the collected fault detection point information to a network manager after gathering; and the network manager analyzes and diagnoses the information of the fault detection points to obtain the fault states of the fault detection points and present the fault states to the user. Therefore, by adopting BBU-RRU communication link diagnosis, the problems of information collection, comprehensive analysis and result presentation in the prior art are solved, the efficiency of locating BBU-RRU communication link faults is improved, and the maintenance cost of the base station is reduced.

As shown in fig. 6, another embodiment of the present invention provides a method for detecting a communication link, including:

step S201, a network manager acquires a target RRU single board selected by a user;

step S202, a diagnosis request based on the target RRU single board is initiated to a base station;

Step S203, receiving fault detection point information collected, summarized and returned by the base station according to the diagnosis request;

and step S204, analyzing and diagnosing the information of the fault detection points to obtain the fault states of the fault detection points, and presenting the fault states to a user.

step 401, performing an RRU software detection process;

If the optical module detection is normal, entering step 404;

As shown in fig. 7, an embodiment of the present invention provides a base station for detecting a communication link, including: a request receiving module 701, a selecting module 702, a collecting module 703 and a sending module 704, wherein:

a request receiving module 701, configured to receive a diagnosis request sent by a network manager, where the diagnosis request carries a target RRU board selected by a user;

a selecting module 702, configured to select, according to the diagnosis request, an RRU topology structure where the target RRU board is located;

a collecting module 703, configured to collect, based on the selected RRU topology, fault detection point information of a communication link between the BBU and the RRU;

a sending module 704, configured to send the collected information of the fault detection point to a network manager after gathering, where the network manager performs analysis and diagnosis on the information of the fault detection point.

Specifically, the present embodiment relates to a base station and a network manager, and the base station side and the network manager side are respectively provided with corresponding functional modules as required. The system architecture can be as shown in fig. 2, and the network manager can manage the fault detection point information of a plurality of base station sites. Each base station site is composed of a BBU and a plurality of RRUs, the topology structures of the RRUs can be star topology, cascade topology, ring network topology, ring-added-chain topology, double-uplink topology and the like, various configuration topologies correspondingly support different wireless products, and the method provided by the embodiment of the invention is suitable for various topology structures.

The data analysis process of the analysis and diagnosis performed by the network manager in this embodiment may refer to the contents described above with reference to fig. 4 and fig. 5, and is not described herein again.

As shown in fig. 8, an embodiment of the present invention provides a network manager for detecting a communication link, including: an obtaining module 801, a request initiating module 802, an information receiving module 803, and an analysis and diagnosis module 804, wherein:

an obtaining module 801, configured to obtain a target RRU board selected by a user;

a request initiating module 802, configured to initiate a diagnostic request based on the target RRU board to a base station;

an information receiving module 803, configured to receive fault detection point information collected, summarized, and returned by the base station according to the diagnosis request;

and the analysis and diagnosis module 804 is used for analyzing and diagnosing the information of the fault detection points to obtain the fault states of the fault detection points and presenting the fault states to a user.

In addition, an embodiment of the present invention further provides a system for detecting a communication link, including: a base station and a network manager; wherein:

For a specific process of implementing detection of a communication link between the BBU and the RRU by interaction between the base station and the network manager, please refer to the above embodiments, which is not described herein again.

The embodiment of the invention provides a method, a base station, a network manager and a system for detecting a communication link between BBU and RRU, wherein the network manager acquires a target RRU single board selected by a user and initiates a diagnosis request based on the target RRU single board to the base station; the base station selects an RRU topological structure where a target RRU single board is located according to the diagnosis request, collects fault detection point information of a communication link between a BBU and an RRU based on the selected RRU topological structure, and sends the collected fault detection point information to a network manager after gathering; and the network manager analyzes and diagnoses the information of the fault detection points to obtain the fault states of the fault detection points and present the fault states to the user. Therefore, by adopting BBU-RRU communication link diagnosis, the problems of information collection, comprehensive analysis and result presentation in the prior art are solved, the efficiency of locating BBU-RRU communication link faults is improved, and the maintenance cost of the base station is reduced.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structures or flow transformations made by the present specification and drawings, or applied directly or indirectly to other related arts, are included in the scope of the present invention.

Claims

1. A method for detecting a communication link, comprising:

a base station receives a diagnosis request sent by a network manager, wherein the diagnosis request carries a target Remote Radio Unit (RRU) single board selected by a user;

the collected fault detection point information is collected and then sent to a network manager, and the network manager analyzes and diagnoses the fault detection point information;

the step of collecting the information of the fault detection point of the communication link between the BBU and the RRU based on the selected RRU topological structure comprises the following steps: the base station searches and collects the manual operation condition of an optical outlet plate and each level of RRU and the base station software operation condition information from the RRU topological structure in a parallel query mode; the base station searches and collects information of an optical outlet plate, RRUs at all levels, an optical module and a cable from the RRU topological structure in a serial query mode; and summarizing the collected information of each fault detection point to be used as the information of the fault detection point of the communication link between the BBU and the RRU.

2. The method of claim 1, wherein the RRU topology is one of a star topology, a cascade topology, a ring topology, a link-and-link topology, and a dual-uplink topology.

3. A method for detecting a communication link, comprising:

a network manager acquires a target RRU single board selected by a user;

receiving fault detection point information which is collected, gathered and returned by the base station according to the diagnosis request, wherein the fault detection point information is the RRU topological structure where the target RRU single board is located and selected by the base station according to the diagnosis request; searching and collecting the manual operation condition and base station software operation condition information of an optical outlet plate and each stage of RRU from the RRU topological structure by adopting a parallel query mode; searching and collecting information of an optical outlet plate, each stage of RRUs, an optical module and a cable from the RRU topological structure in a serial query mode; the collected information of each fault detection point is collected;

4. The method according to claim 3, wherein the step of the network manager performing analysis and diagnosis on the information of the fault detection point to obtain the fault state of the fault detection point, and the step of presenting the fault state to the user comprises:

5. The method according to claim 4, wherein the step of, when detecting that the hardware link of the target RRU board is abnormal, sequentially analyzing and diagnosing the optical outlet board, each stage of RRU, the optical module and the cable, and the base station operation and software operation conditions according to a set priority to obtain the fault status of the corresponding fault detection point comprises:

6. A base station for detecting a communication link, comprising:

the sending module is used for summarizing the collected fault detection point information and then sending the summarized fault detection point information to a network manager, and the network manager analyzes and diagnoses the fault detection point information;

the collection module is further configured to search and collect information on manual operation conditions of the optical outlet board and each level of RRUs and operation condition of base station software from the RRU topology structure in a parallel query manner; searching and collecting information of an optical outlet plate, each stage of RRUs, an optical module and a cable from the RRU topological structure in a serial query mode; and summarizing the collected information of each fault detection point to be used as the information of the fault detection point of the communication link between the BBU and the RRU.

7. The base station of claim 6, wherein the RRU topology is one of a star topology, a cascade topology, a ring topology, a link-add-link topology, and a dual-uplink topology.

8. A network manager for detecting a communication link, comprising:

an information receiving module, configured to receive fault detection point information collected, gathered, and returned by the base station according to the diagnosis request, where the fault detection point information is an RRU topology structure in which the target RRU board is located and selected by the base station according to the diagnosis request; searching and collecting the manual operation condition and base station software operation condition information of an optical outlet plate and each stage of RRU from the RRU topological structure by adopting a parallel query mode; searching and collecting information of an optical outlet plate, each stage of RRUs, an optical module and a cable from the RRU topological structure in a serial query mode; the collected information of each fault detection point is collected;

9. The network management of claim 8,

the analysis and diagnosis module is further configured to detect whether a link of the target RRU single board is abnormal; when the hardware link of the target RRU single board is detected to be abnormal, analyzing and diagnosing an optical outlet board, each stage of RRUs, an optical module, a cable, base station operation and software operation conditions in sequence according to a set priority to obtain a fault state of a corresponding fault detection point; when detecting that the hardware link of the target RRU single board is normal, detecting whether the software link of the target RRU single board is abnormal; when the software link of the target RRU single board is detected to be abnormal, detecting the manual operation and software running conditions of a base station; and presenting the obtained fault state of the fault detection point and a corresponding repair suggestion to a user.

10. The network management of claim 9,

the analysis and diagnosis module is further configured to detect whether an optical outlet board of the target RRU single board is abnormal; if the optical outlet board of the target RRU single board is detected to be abnormal, obtaining the fault state of the corresponding fault detection point; if the optical outlet board of the target RRU single board is detected to be normal, detecting the optical module of the target RRU and the condition of a cable connected with the RRU; if the optical module of the target RRU and the cable connected with the RRU are detected to be abnormal, obtaining the fault state of the corresponding fault detection point; and if the optical module of the target RRU and the cable connected with the RRU are detected to be normal, detecting the condition of each stage of RRU to obtain the fault state of the corresponding fault detection point of each stage of RRU.

11. A system for detecting a communication link, comprising: a base station and a network manager; wherein:

the base station is used for selecting an RRU topological structure where the target RRU single board is located according to the diagnosis request, collecting fault detection point information of a communication link between the BBU and the RRU based on the selected RRU topological structure, and sending the collected fault detection point information to a network manager after summarizing; the step of collecting the information of the fault detection point of the communication link between the BBU and the RRU based on the selected RRU topological structure comprises the following steps: searching and collecting the manual operation condition and base station software operation condition information of an optical outlet plate and each stage of RRU from the RRU topological structure by adopting a parallel query mode; searching and collecting information of an optical outlet plate, each stage of RRUs, an optical module and a cable from the RRU topological structure in a serial query mode; collecting the collected information of each fault detection point, and using the collected information as the information of the fault detection point of the communication link between the BBU and the RRU;