CN107800566B - LTE-R railway special broadband mobile communication network interface monitoring system - Google Patents
LTE-R railway special broadband mobile communication network interface monitoring system Download PDFInfo
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Abstract
The invention discloses a monitoring system for an LTE-R railway special broadband mobile communication network interface, which monitors the communication state of an LTE-R network by acquiring, analyzing, storing and presenting signaling data and service data of an S1 interface in the LTE-R railway broadband mobile communication process, can effectively improve the operation and maintenance level of the LTE-R network and ensure the driving safety.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a monitoring system for an LTE-R railway special broadband mobile communication network interface.
Background
The international railroad consortium (UIC) has begun the research work for next generation railroad communication systems and has now released future railroad mobile communication system user demand specifications. The LTE-R can provide a high-efficiency, quick, reliable and low-delay network, and can provide safe voice and data services, and the technical characteristics of the LTE-R accord with the requirements of the next generation railway wireless communication system. China railway is also researching that the adoption of the standard is taken as the development direction of railway communication in later period so as to adapt to new technology as early as possible and prepare for the future operation development of railway.
The LTE-R network needs to meet the requirements of an operation maintenance management system, undertakes comprehensive communication services such as real-time safety data, non-real-time text data, voice, images and the like, and provides support for normal operation of trains. Therefore, the stability and reliability of the LTE-R communication network will directly affect the normal operation of the train. However, in the long-term use of the LTE-R system and during the operation of the system, problems such as transmission data loss and data non-timely delivery are inevitably generated. The LTE-R system is composed of four parts, namely, a core network, a radio access network, an application service system, and an operation and support system, and if transmission is interrupted or lost in a data system, it is difficult for maintenance personnel to accurately locate a fault in the LTE-R system in time, so that the operation and maintenance of equipment cannot be guaranteed, and the normal operation order of trains will be affected.
Disclosure of Invention
The invention aims to provide an LTE-R railway dedicated broadband mobile communication network interface monitoring system which can monitor the communication state of an LTE-R network and track the communication process of a user so as to effectively improve the operation and maintenance level of the LTE-R network.
The purpose of the invention is realized by the following technical scheme:
an LTE-R railway dedicated broadband mobile communication network interface monitoring system comprises: the system comprises S1 interface acquisition equipment, an LTE-R processing center and a display terminal which are connected in sequence;
the S1 interface acquisition device is used for acquiring signaling and service data of an S1 interface between a base station and a core network;
the LTE-R processing center is used for carrying out protocol analysis on signaling and service data of an S1 interface, distinguishing control plane data and user plane data, respectively analyzing the control plane data and the user plane data, and further carrying out CDR synthesis and call record synthesis; the query module is used for returning a corresponding query result according to the query instruction transmitted by the display terminal; the system is used for analyzing a certain signaling or service data selected by a user in detail; the system is also used for identifying and alarming abnormal signaling and service data of an S1 interface;
and the display terminal is used for displaying the signaling and service data of the S1 interface and the data generated by the LTE-R processing center during data processing in real time and also used for realizing the transmission of the query instruction.
The S1 interface acquisition equipment comprises: a switch or an ethernet splitter;
if the switch is used, the signaling and service data of the interface S1 are collected through a switch port mirroring technology: copying data in two receiving and transmitting directions of a monitored port to a certain port by using a port convergence function of a switch on an acquired port of an S1 interface; then, accessing the corresponding port to the switch, and converging the data on the plurality of ports to one or a plurality of ports on the switch by using the port converging function again;
if the traffic data is the ethernet splitter, the signaling and service data of the S1 interface are collected by means of traffic replication of the ethernet splitter: the Ethernet shunt is connected in series in a communication link between the core network and the base station, and shunts S1 interface protocol data in the communication link, so that the integrity of data streams received by the LTE-R processing center is ensured.
The LTE-R processing center comprises: an S1 interface processing server, a database server and a comprehensive analysis server;
the S1 interface processing server is configured to perform protocol analysis on signaling and service data of the S1 interface, distinguish control plane data from user plane data, analyze the control plane data and the user plane data, and perform CDR synthesis and call record synthesis;
the database server is used for storing the analysis result, the CDR synthesis result and the call record synthesis result of the S1 interface processing server;
the comprehensive analysis server is used for returning a corresponding query result according to the query instruction transmitted by the display terminal; the system is used for analyzing a certain signaling or service data selected by a user in detail; and is also used for identifying and alarming abnormal signaling and service data of the S1 interface.
The system adopts a layered structure, wherein S1 interface acquisition equipment is positioned in an acquisition access layer, an S1 interface processing server and a database server in an LTE-R processing center are positioned in a protocol processing layer, and a comprehensive analysis server and a display terminal in the LTE-R processing center are positioned in an application layer.
The S1 interface processing server includes: the system comprises a first data receiving module, a control plane data analysis module, a user plane data analysis module, a CDR synthesis module, a call record synthesis module and a data sending module; wherein:
the first data receiving module is used for receiving and buffering signaling and service data from an S1 interface of an acquisition access layer, performing protocol analysis of a network layer and distinguishing control plane data and user plane data;
the control plane data analysis module is used for completing analysis of a control plane data SCTP protocol, an S1AP protocol and an NAS protocol and extracting identification information of an MME, a base station and UE in the data;
the user plane data analysis module is used for completing the analysis of a user plane data UDP protocol and a GTP protocol and extracting UE identification information in the data; analyzing the SIP protocol for the railway voice communication data, and extracting voice call information in the SIP protocol data;
the CDR synthesis module is used for finishing the association of signaling of the same UE in the same service according to the identification information of the MME, the base station and the UE extracted from the control plane data and the user plane data, extracting the user identification in the user plane data, finishing the association of the signaling and the service data of the same UE in the same service and finishing CDR synthesis;
the call record synthesis module is used for associating the voice data of the same UE in the same voice call process according to the UE identification information and the voice call information extracted from the user plane data to complete call record synthesis;
and the data sending module is used for sending the data analysis result of the control plane data analysis module, the data analysis result of the user plane data analysis module, the CDR synthesis result of the CDR synthesis module and the call record synthesis result of the call record synthesis module to a display terminal in the application layer in real time for displaying in real time and sending to the database server for data storage.
The display terminal includes: the query display module is used for monitoring real-time display of data, query display of historical data, query condition configuration, display data filtering and issuing of related query instructions;
the integrated analysis server includes: the system comprises a second data receiving module, a database interface module, a detailed data analysis module, an anomaly analysis module and a data export module; wherein:
the second data receiving module is used for receiving the data from the protocol processing layer in real time and delivering the data to the query display module for real-time display;
the database interface module is used for interacting with the database server according to the query instruction of the query display module, querying historical data stored in the database server, and delivering a query result to the query display module for display;
the data detail analysis module is used for carrying out detail analysis on a certain signaling or service data selected by a user in the query display module according to a 3GPP protocol and a railway service data transmission protocol, and displaying a writing analysis result on a terminal interface according to a protocol layered structure;
the abnormity analysis module is used for identifying and alarming the abnormal signaling and the service data of the S1 interface in the LTE-R communication process according to a 3GPP protocol and a railway service data transmission protocol;
and the data export module is used for exporting the signaling and the service data stored in the database server in a specified format.
According to the technical scheme provided by the invention, the monitoring of the communication state of the LTE-R network is realized by acquiring, analyzing, storing and presenting the signaling data and the service data of each interface in the LTE-R railway broadband mobile communication process, the operation and maintenance level of the LTE-R network can be effectively improved, and the driving safety is ensured.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic diagram of an LTE network architecture according to an embodiment of the present invention;
fig. 2 is a schematic position diagram of an LTE-R railway dedicated broadband mobile communication network interface monitoring system in an LTE network according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an LTE-R railway dedicated broadband mobile communication network interface monitoring system according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a mirror image collection method of an exchange port according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an ethernet offload acquisition manner according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an overall architecture of an interface monitoring system according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an S1 interface protocol stack according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are 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 only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The LTE optimizes the traditional 3G network architecture and adopts a flat network structure. The whole LTE/SAE system consists of three parts, namely a core network (EPC), a base station (eNB or eNode B) and User Equipment (UE). The EPC is responsible for a core network part, including MME, S-GW and P-GW; the eNB is responsible for the access network part, also called E-UTRAN, providing the user plane and the control plane; UE refers to end user equipment. The LTE network architecture is shown in fig. 1.
As shown in fig. 1, the eNB is connected to the EPC through an S1 interface, the eNB is connected to the eNB through an X2 interface, and the eNB is connected to the UE through a Uu interface (not shown). The functions of the eNB include radio resource management functions, IP header compression and user data stream encryption, MME selection at UE attach, routing of S-GW user plane data, scheduled transmission of paging messages, scheduled transmission of broadcast messages, measurements on mobility configuration and scheduling, etc.
The functions of the MME include encryption and integrity protection of NAS non-access stratum signaling, AS access stratum security control and idle state mobility control, EPS bearer control, paging, handover, roaming management, user authentication and the like.
The functions of the S-GW include packet data routing and forwarding, mobility and handover support, lawful interception, charging, and so on.
The functions of the P-GW include packet filtering, lawful interception, UE IP address allocation, downlink transmission level packet marking, uplink and downlink service level charging, gateway and rate limitation, APN-AMBR-based downlink rate limitation and the like.
As shown in fig. 2, an LTE-R railway dedicated broadband mobile communication network interface monitoring system (hereinafter referred to as "interface monitoring system") provided in the embodiment of the present invention mainly monitors signaling and service data of an S1 interface. The S1 interface connects the eNB with the EPC, including the control plane interface S1-MME where the eNB connects with the MME and the user plane interface S1-U where the eNB connects with the S-GW.
The interface monitoring system collects signaling and service data of an S1 interface control plane and a user plane, analyzes, stores and analyzes the collected signaling and service data, and finally presents the processing result in a system terminal interface.
As shown in fig. 3, the interface monitoring system provided in the embodiment of the present invention mainly includes: the system comprises S1 interface acquisition equipment (signaling and data acquisition points), an LTE-R processing center and a display terminal which are connected in sequence;
the S1 interface acquisition device is used for acquiring signaling and service data of an S1 interface between a base station and a core network;
the LTE-R processing center is used for carrying out protocol analysis on signaling and service data of an S1 interface, distinguishing control plane data and user plane data, respectively analyzing the control plane data and the user plane data, and further carrying out CDR synthesis and call record synthesis; the query module is used for returning a corresponding query result according to the query instruction transmitted by the display terminal; the system is used for analyzing a certain signaling or service data selected by a user in detail; the system is also used for identifying and alarming abnormal signaling and service data of an S1 interface;
and the display terminal is used for displaying the signaling and service data of the S1 interface and the data generated by the LTE-R processing center during data processing in real time and also used for realizing the transmission of the query instruction.
Specifically, the LTE-R processing center includes: an S1 interface processing server, a database server and a comprehensive analysis server;
the S1 interface processing server is configured to perform protocol analysis on signaling and service data of the S1 interface, distinguish control plane data from user plane data, analyze the control plane data and the user plane data, and perform CDR synthesis and call record synthesis;
the database server is used for storing the analysis result, the CDR synthesis result and the call record synthesis result of the S1 interface processing server;
the comprehensive analysis server is used for returning a corresponding query result according to the query instruction transmitted by the display terminal; the system is used for analyzing a certain signaling or service data selected by a user in detail; and is also used for identifying and alarming abnormal signaling and service data of the S1 interface.
In the embodiment of the invention, the S1 interface processing Server and the database Server can be provided with a Linux Server operating system, and the comprehensive analysis Server can be provided with a Windows operating system.
To facilitate understanding, the interface monitoring system is described in further detail below.
In this embodiment of the present invention, the S1 interface acquisition device includes: a switch or an ethernet splitter; namely, the signaling and service data collection of the S1 interface can be performed by way of switch port mirroring or ethernet splitter traffic replication.
1) If the switch is used, the signaling and service data of the interface S1 are collected through a switch port mirroring technology: as shown in fig. 4, a port aggregation function of a switch is used on an acquired port of an S1 interface to copy data in two directions of transceiving from a monitored port to a certain port; then, accessing the corresponding port to the switch, and converging the data on the plurality of ports to one or a plurality of ports on the switch by using the port converging function again;
2) if the traffic data is the ethernet splitter, the signaling and service data of the S1 interface are collected by means of traffic replication of the ethernet splitter: as shown in fig. 5, an ethernet splitter is serially connected in a communication link between a core network and a base station to split S1 interface protocol data in the communication link, so as to ensure the integrity of a data stream received by an LTE-R processing center.
The two acquisition modes respectively have the following advantages and disadvantages: by adopting the acquisition mode of the port mirror image of the switch, acquisition equipment is not required to be added, the function of the port mirror image of the switch is directly utilized to acquire data, but switch resources are occupied. Through the collection mode of Ethernet shunt, a network shunt needs to be additionally arranged in a communication link, but the switch resource is not occupied. The newly added network splitter in the communication link needs to have a power-off direct connection function, that is, when the splitter fails or has power failure, the normal communication link is not affected.
In actual work, staff can select corresponding acquisition modes according to actual conditions. In the embodiment of the invention, the Ethernet shunt is preferably used as a data acquisition mode of the interface monitoring system.
In the embodiment of the invention, the interface monitoring system adopts a layered architecture as shown in fig. 6, and the software design of each layer adopts a modular design, so that the system is easy to expand and maintain.
The system is divided into three layers from bottom to top, namely an acquisition access layer, a protocol processing layer and an application layer. The system comprises an acquisition access layer, an LTE-R processing center, a protocol processing layer, an integrated analysis server and a display terminal, wherein the acquisition equipment of an S1 interface is positioned in the acquisition access layer, the processing server of an S1 interface and a database server in the LTE-R processing center are positioned in the protocol processing layer, and the integrated analysis server and the display terminal in the LTE-R processing center are positioned in the application layer. The method comprises the following specific steps:
1. the S1 interface processing server includes: the system comprises a first data receiving module, a control plane data analysis module, a user plane data analysis module, a CDR synthesis module, a call record synthesis module and a data sending module; wherein:
the first data receiving module is used for receiving and buffering signaling and service data from an S1 interface of an acquisition access layer, performing protocol analysis of a network layer, and distinguishing control plane data from user plane data.
In the embodiment of the present invention, the S1 interface includes two parts, namely a control plane and a user plane, and the protocol layers of the two planes can be divided into a transport network layer and a radio network layer from bottom to top. The S1 interface protocol stack structure is shown in fig. 7. The S1 interface is based on IP transport at the network layer of both planes, but at the transport layer the control plane uses SCTP protocol to provide reliable transport, while the user plane uses UDP to provide non-guaranteed transport. In the S1 interface protocol stack, the control plane corresponds to the interface between the eNB and the MME, i.e. the S1-MME interface, which is mainly responsible for the transmission of control plane signaling and establishes a bearer for the user service; the user plane corresponds to an interface between the eNB and the S-GW, i.e., an S1-U interface, and is mainly responsible for transmission of user data.
The control plane data analysis module is used for completing analysis of a control plane data SCTP protocol, an S1AP protocol and an NAS protocol and extracting identification information of an MME, a base station and UE in the data;
the user plane data analysis module is used for completing the analysis of a user plane data UDP protocol and a GTP protocol and extracting UE identification information in the data; analyzing the SIP protocol for the railway voice communication data, and extracting voice call information in the SIP protocol data;
the CDR synthesis module is used for finishing the association of signaling of the same UE in the same service according to the identification information of the MME, the base station and the UE extracted from the control plane data and the user plane data, extracting the user identification in the user plane data, finishing the association of the signaling and the service data of the same UE in the same service and finishing CDR synthesis;
the call record synthesis module is used for associating the voice data of the same UE in the same voice call process according to the UE identification information and the voice call information extracted from the user plane data to complete call record synthesis;
and the data sending module is used for sending the data analysis result of the control plane data analysis module, the data analysis result of the user plane data analysis module, the CDR synthesis result of the CDR synthesis module and the call record synthesis result of the call record synthesis module to a display terminal in the application layer in real time for displaying in real time and sending to a database server (a data storage module therein) for data storage.
2. The display terminal includes: and the query display module is used for monitoring real-time display of data, query display of historical data, query condition configuration, display data filtering and issuing of related query instructions.
3. The integrated analysis server includes: the system comprises a second data receiving module, a database interface module, a detailed data analysis module, an anomaly analysis module and a data export module; wherein:
the second data receiving module is used for receiving the data from the protocol processing layer in real time and delivering the data to the query display module for real-time display;
the database interface module is used for interacting with a database server (a data storage module therein) according to the query instruction of the query display module, querying historical data stored in the database server, and delivering a query result to the query display module for display;
the data detail analysis module is used for carrying out detail analysis on a certain signaling or service data selected by a user in the query display module according to a 3GPP protocol and a railway service data transmission protocol, and displaying a writing analysis result on a terminal interface according to a protocol layered structure;
the abnormity analysis module is used for identifying and alarming the abnormal signaling and the service data of the S1 interface in the LTE-R communication process according to a 3GPP protocol and a railway service data transmission protocol;
the data export module is used for exporting the signaling and service data stored in the database server in a specified format (for example, an Excel format and a PCAP).
In combination with the above, the interface monitoring system can mainly realize the following functions:
1) and displaying the monitoring data in real time. The interface monitoring system can display all the analyzed signaling and service data of the S1 interface on the terminal interface in real time, and can synthesize and display call records in real time.
2) Query and playback of the monitoring data. The interface monitoring system can combine the query conditions such as IP address, IMSI, TMSI, monitoring time, protocol type and service type, and the like, query the historical data (signaling and service data, call record) collected by the interface monitoring system according to the combined query conditions, and present the query result on the terminal interface.
3) Single user tracking. The interface monitoring system can track the communication process of all LTE-R users in a monitoring area. The interface monitoring system takes the IP address of the LTE-R user as an identifier, monitors signaling and service data of a single user, analyzes the monitored data according to a 3GPP protocol and a railway service transmission protocol, and displays an original code if the data which cannot be analyzed correctly is received.
4) And (4) abnormal analysis and alarm. The interface monitoring system can identify the signaling interaction abnormity and the railway service data abnormity in the LTE-R network communication process according to a 3GPP protocol and a railway service transmission protocol, and send an abnormity alarm through a system terminal.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. An LTE-R railway dedicated broadband mobile communication network interface monitoring system is characterized by comprising: the system comprises S1 interface acquisition equipment, an LTE-R processing center and a display terminal which are connected in sequence;
the S1 interface acquisition device is used for acquiring signaling and service data of an S1 interface between a base station and a core network;
the LTE-R processing center is used for carrying out protocol analysis on signaling and service data of an S1 interface, distinguishing control plane data and user plane data, respectively analyzing the control plane data and the user plane data, and further carrying out CDR synthesis and call record synthesis, wherein according to identification information of MME, base stations and UE extracted from the control plane data and the user plane data, the signaling association of the same UE in the same service is completed, the user identification in the user plane data is extracted, the signaling association of the same UE in the same service and the service data association are completed, and the CDR synthesis is completed; the query module is used for returning a corresponding query result according to the query instruction transmitted by the display terminal; the system is used for analyzing a certain signaling or service data selected by a user in detail; the system is also used for identifying and alarming abnormal signaling and service data of an S1 interface;
the display terminal is used for displaying the signaling and the service data of the S1 interface and the data generated by the LTE-R processing center during data processing in real time and also used for realizing the sending of the query instruction;
the S1 interface acquisition equipment comprises: a switch or an ethernet splitter;
if the switch is used, the signaling and service data of the interface S1 are collected through a switch port mirroring technology: copying data in two receiving and transmitting directions of a monitored port to a certain port by using a port convergence function of a switch on an acquired port of an S1 interface; then, accessing the corresponding port to the switch, and converging the data on the plurality of ports to one or a plurality of ports on the switch by using the port converging function again;
if the traffic data is the ethernet splitter, the signaling and service data of the S1 interface are collected by means of traffic replication of the ethernet splitter: the Ethernet shunt is connected in series in a communication link between a core network and a base station, and shunts S1 interface protocol data in the communication link, so that the integrity of data streams received by an LTE-R processing center is ensured;
the display terminal includes: the query display module is used for monitoring real-time display of data, query display of historical data, query condition configuration, display data filtering and issuing of related query instructions;
the comprehensive analysis server of the LTE-R processing center comprises: the system comprises a second data receiving module, a database interface module, a detailed data analysis module, an anomaly analysis module and a data export module; wherein:
the second data receiving module is used for receiving the data from the protocol processing layer in real time and delivering the data to the query display module for real-time display;
the database interface module is used for interacting with the database server according to the query instruction of the query display module, querying historical data stored in the database server, and delivering a query result to the query display module for display;
the data detail analysis module is used for carrying out detail analysis on a certain signaling or service data selected by a user in the query display module according to a 3GPP protocol and a railway service data transmission protocol, and displaying an analysis result on a terminal interface according to a protocol layered structure;
the abnormity analysis module is used for identifying and alarming the abnormal signaling and the service data of the S1 interface in the LTE-R communication process according to a 3GPP protocol and a railway service data transmission protocol;
and the data export module is used for exporting the signaling and the service data stored in the database server in a specified format.
2. The LTE-R railway-specific broadband mobile communication network interface monitoring system of claim 1, wherein the LTE-R processing center comprises: an S1 interface processing server, a database server and a comprehensive analysis server;
the S1 interface processing server is configured to perform protocol analysis on signaling and service data of the S1 interface, distinguish control plane data from user plane data, analyze the control plane data and the user plane data, and further perform CDR synthesis and call record synthesis;
the database server is used for storing the analysis result, the CDR synthesis result and the call record synthesis result of the S1 interface processing server;
the comprehensive analysis server is used for returning a corresponding query result according to the query instruction transmitted by the display terminal; the system is used for analyzing a certain signaling or service data selected by a user in detail; and is also used for identifying and alarming abnormal signaling and service data of the S1 interface.
3. The system for monitoring the interfaces of the LTE-R railway dedicated broadband mobile communication network according to claim 1 or 2, wherein the system adopts a layered structure, wherein the S1 interface acquisition equipment is positioned in an acquisition access layer, the S1 interface processing server and the database server in the LTE-R processing center are positioned in a protocol processing layer, and the comprehensive analysis server and the display terminal in the LTE-R processing center are positioned in an application layer.
4. The LTE-R railway-specific broadband mobile communication network interface monitoring system of claim 3,
the S1 interface processing server includes: the system comprises a first data receiving module, a control plane data analysis module, a user plane data analysis module, a CDR synthesis module, a call record synthesis module and a data sending module; wherein:
the first data receiving module is used for receiving and buffering signaling and service data from an S1 interface of an acquisition access layer, performing protocol analysis of a network layer and distinguishing control plane data and user plane data;
the control plane data analysis module is used for completing analysis of a control plane data SCTP protocol, an S1AP protocol and an NAS protocol and extracting identification information of an MME, a base station and UE in the data;
the user plane data analysis module is used for completing the analysis of a user plane data UDP protocol and a GTP protocol and extracting UE identification information in the data; analyzing the SIP protocol for the railway voice communication data, and extracting voice call information in the SIP protocol data;
the CDR synthesis module is used for finishing the association of signaling of the same UE in the same service according to the identification information of the MME, the base station and the UE extracted from the control plane data and the user plane data, extracting the user identification in the user plane data, finishing the association of the signaling and the service data of the same UE in the same service and finishing CDR synthesis;
the call record synthesis module is used for associating the voice data of the same UE in the same voice call process according to the UE identification information and the voice call information extracted from the user plane data to complete call record synthesis;
and the data sending module is used for sending the data analysis result of the control plane data analysis module, the data analysis result of the user plane data analysis module, the CDR synthesis result of the CDR synthesis module and the call record synthesis result of the call record synthesis module to a display terminal in the application layer in real time for displaying in real time and sending to the database server for data storage.
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