CN105933929B - It is a kind of to eat dishes without rice or wine the multi-protocol association method and system of measuring instrument suitable for LTE-A network - Google Patents
It is a kind of to eat dishes without rice or wine the multi-protocol association method and system of measuring instrument suitable for LTE-A network Download PDFInfo
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Abstract
To solve not being able to satisfy the application requirement of LTE-A network existing for prior art monitoring signaling analysis system SMAP system and not can be carried out the problems such as multi-protocol association is analyzed, the present invention proposes a kind of to eat dishes without rice or wine the multi-protocol association method and system of measuring instrument suitable for LTE-A network.Pass through acquisition LTE-A network UE and the initial data of the UTRAN air interface Uu communicated and carry out parsing and synthesizes, obtain that sub- CDR relationship goes out table and overall situation CDR relationship goes out table, it is recorded in detail according to the business that user selects, search it is all record directly or indirectly associated business in detail with the business and record in detail, complete business process is synthesized using rear correlating method and is shown by interface.The method have the benefit that acquiring initial data by the air interface Uu that LTE-A network UE is communicated with UTRAN, multi-protocol analysis and processing are carried out to initial data, and complete business flow chart is exported according to the display rule of user's selection, be conducive to the detection and maintenance of LTE-A network.
Description
Technical Field
The invention relates to the technical field of communication network monitoring and network protocol analysis, in particular to a multi-protocol correlation method and a multi-protocol correlation system suitable for an air interface monitoring instrument of an LTE-A network.
Background
With the construction and development of an LTE-A network, the application of mobile internet services is continuously deep, users show explosive growth on the requirements of data communication and multimedia services, and mobile operators realize that signaling monitoring has important values for network maintenance optimization, customer perception improvement and large data platform construction. The quality optimization, data acquisition, user tracking and positioning analysis of the network are not independent of a signaling monitoring system, the current development trend of the LTE-A network also promotes the application and development of signaling monitoring instruments, and most signaling monitoring instruments become a set of comprehensive system tools such as a signaling monitoring analysis System (SMAP).
At present, most of the SMAPs collect various signaling data of interfaces of communication networks A, Mc, Iu and the like, decode signaling protocols, synthesize Call Detail Records (CDR) (call Detail record), and reproduce the whole service connection process. Therefore, various indexes of the network and the service are counted, so that network maintenance personnel can master and analyze the operation conditions of the network and the service. Because the traditional acquisition point disappears due to the flat structure of the LTE-A network, air interface signaling needs to be acquired from an air interface Uu of the communication between the UE and the UTRAN, so that the SMAP system in the prior art can not meet the application requirement of the LTE-A network, and a new LTE-A air interface monitoring system needs to be designed.
In addition, protocol analysis cannot be conducted on collected data in both the SMAP system in the prior art and a newly designed LTE-A air interface monitoring system, single protocol analysis has no application value, and association among multiple protocols has wide application space. In addition, most of the network services are completed by multiple protocols and across multiple base stations, and for the complex service analysis, acquiring a complete service flow requires a multi-protocol correlation technique. The multi-protocol association is a core technology for enabling the acquired data to show value, and is also one of key technologies in a newly designed LTE-A air interface monitoring analyzer system.
Obviously, the SMAP system of the signaling monitoring and analyzing system in the prior art has the problems that the application requirements of an LTE-A network cannot be met, multi-protocol correlation analysis cannot be carried out and the like.
Disclosure of Invention
The invention provides a multi-protocol association method and system suitable for an air interface monitoring instrument of an LTE-A network, and aims to solve the problems that an SMAP system of a signaling monitoring and analyzing system in the prior art cannot meet the application requirements of the LTE-A network and cannot perform multi-protocol association analysis.
The invention relates to a multi-protocol correlation method suitable for an air interface monitoring instrument of an LTE-A network, which comprises the following steps of:
s1, defining an LTE-A air interface, namely, the incidence relation among the protocols in the Uu interface layer I, the layer II and the layer III, and establishing an incidence relation table among the protocols; defining the incidence relation between the service plane and the signaling plane, and establishing a data service plane and signaling plane incidence relation table; the definition of the LTE-A air interface, namely the incidence relation among the protocols in the Uu interface layer I, the layer II and the layer III, means that the incidence relation among the protocols is defined through a field protocol type ProType, a protocol field length ProSize, an incidence main Key Key and a protocol incidence survival time ProTime; defining the incidence relation between the service plane and the signaling plane by a field service type SertType, a signaling type SignType, an incidence Key, a service field length SertSize, a signaling field length SignSize and an incidence survival time RelTime;
s2, collecting original data of an air interface Uu of the communication between the LTE-A network UE and the UTRAN;
s3, removing the original data, marking an identification label and storing the grouped data; the data elimination refers to deleting data which are not concerned by a user and data which are irrelevant to the later decoding synthesis association analysis; the identification tag comprises a message ID, a cell ID, a packet length, a data link type and a time tag;
s4, carrying out protocol analysis on each layer of signaling messages according to the protocol type by the recombined data; analyzing the signaling of the Uu interface, namely analyzing a physical layer of a layer I, an MAC protocol, an RLC protocol and a PDCP protocol of a layer II, and an RRC protocol and an NAS protocol of a layer III;
s5, synthesizing the call detail record CDR of each protocol according to the protocol type and the protocol rule, namely the sub CDR; performing correlation analysis on the sub CDR, establishing a sub CDR relation table and updating according to the setting; respectively synthesizing a signaling plane CDR and a service plane CDR according to the signaling plane and the service plane; performing correlation analysis on the signaling side CDR and the service side CDR, establishing a global CDR relation table and updating according to the setting;
s6, according to the business detail record selected by the user, searching all the business detail records directly or indirectly associated with the business detail record, synthesizing a complete business process by adopting a post-association method and displaying the business process through an interface.
Further, the fields of the sub-CDR relationship table in step S5 include: the method comprises the steps of protocol type, current service identification ID, service start time, service end time, an associated main key table, an associated service detailed record table and an extended service detailed record;
the fields of the global CDR relationship table include: the method comprises the steps of protocol type, service type, current service identification ID, user identification key information, service starting time, service ending time, an associated main key table, an associated service detailed record table and an extended service detailed record;
the associated primary key table definition field includes: the name of the associated main key and the value of the associated main key;
the associated service detailed record table comprises a user service identification detailed table;
the user service Identification detailed table comprises a globally Unique Temporary UE Identification GUTI (Global Unique temporal UE Identity) for identifying a user Identity, an international mobile Subscriber Identity IMSI (International Mobile Subscriber Identity), a Temporary mobile Subscriber Identity TMSI (temporal Mobile Subscriber Identity), an MME Temporary Subscriber Identity MTMSI (MME-temporal Mobile Subscriber Identity), a Cell Radio Network Temporary Identity C-RNTI (Cell-Radio Network temporal Identity), a UE Identity UE (UE-user Identity), a user IP address Identity and a user service data information table.
Further, in step S5, performing association analysis on the sub-CDRs, including that the sub-CDR association refers to performing inter-protocol association and data service plane association by using a post-association method; the inter-protocol association comprises an association of an RRC protocol with a NAS protocol; the RRC protocol associated parameters comprise IMSI, C-RNTI, cell ID, EPS bearing ID and transactioniD obtained by GUTI association; the NAS protocol associated parameters comprise IMSI, MMEID, IEI, EPS mobile Identity and PTI; at this time, establishing parameters related to the RRC protocol and the NAS protocol, wherein the parameters include IMSI, cell ID, MMEID and EPS bearing ID, establishing the relation between the NAS protocol and the RRC protocol through the same IMSI, and analyzing the signaling flow of the same IMSI; the association of the data service plane comprises the association of an MAC protocol, an RLC protocol and a PDCP protocol; the parameters related to the MAC protocol comprise UEid, logical channel Identity, LCID and C-RNTI; the RLC protocol related parameters comprise UEid and RBid; the parameters related to the PDCP protocol comprise a PDCP _ SDU serial number and a RBid; respectively establishing association between an MAC protocol data flow and an RLC protocol data flow and association between the MAC protocol data flow and a PDCP protocol data flow through the same UEid and RBid;
wherein, the confirmation and the acquisition of the RRC protocol associated parameter and the NAS protocol associated parameter comprise:
the UE is started and attached to the whole process of an LTE-A network, the LTE is in an idle state, namely no service REquest, an Attach REquest message and a PDN Connectivity REquest message are sent, the Attach REquest message comprises user information IMSI and TA _ id, and the MME is allocated to a UE temporary identifier GUTI; at the moment, a GUTI and IMSI association relationship is established, and the GUTI is equal to the M-TMSI; when the UE establishes PDN connection in an attached manner, the SGW allocates a PDN address UserIP to the UE, at the moment, the association parameters are GUTI, UserIP, SGWIP and TEID, and the association relation between IMSI, TA _ id and UserIP parameters, namely one or more IP addresses, is established through GUTI;
when the UE establishes an RRC Request, namely a service Request exists, the UE initiates a call, responds to paging, an Attach Request, a TAU Request and a Detach Request from an IDLE state to a connected state, carries an initial NAS and establishment cause information, the eNB allocates a unique ID in a user cell, namely C-RNTI, and at the moment, the association relation between the C-RNTI and the GUTI, between the TA _ ID and the UserIP is established.
Further, the step S5 of establishing a sub-CDR relationship table and updating the table according to the setting includes the following steps:
s51, acquiring the ProType of the current data service protocol type;
s52, searching the association relation table between the protocols established in the step S1 according to the ProType;
s53, determine whether there is a protocol associated with the protocol? If yes, executing the step S54 in sequence, otherwise, jumping to execute the step S58;
s54, searching the sub CDR information in the sub CDR output table according to the associated protocol type; the sub CDR export table is a CDR export table formed by the signaling synthesis of a Uu interface;
s55, if a CDR of the association protocol is found? If yes, executing the step S56 in sequence, otherwise, jumping to execute the step S58;
s56, establishing a sub CDR relation table, returning to execute the step S54 until all CDRs in the sub CDR table are traversed;
s57, determine whether the Uu interface tracks and updates the sub-CDR flow? If yes, updating the sub CDR relation table, otherwise, skipping to execute the step S58; judging whether the Uu interface tracks and updates the sub CDR process refers to judging whether to track and update the sub CDR process through a tracking area update TAU (tracking area update);
and S58, finishing the establishment of the sub CDR relation table and updating.
Further, in step S5, performing association analysis on the signaling plane CDR and the service plane CDR, including analyzing the signaling plane CDR and the service plane CDR through Uu interface signaling flow; the associated parameters of the signaling surface CDR comprise IMSI, C-RNTI, cell ID and signaling bearing ID; the associated parameters of the service surface CDR comprise Ueid, logical channel Identity, C-RNTI and data bearing ID; and establishing the association between the CDR of the signaling plane and the CDR of the service plane through the same C-RNTI.
Further, the step S5 of establishing a global CDR relationship table and updating the table according to the setting includes the following steps:
s61, acquiring a ProType of the current data service protocol type;
s62, searching the association relation table between the signaling plane and the service plane established in the step S1 according to the protocol type;
s63, determine whether there is a signaling plane and service plane association protocol? If yes, executing step S64 in sequence, otherwise, jumping to execute step S6
S64, searching CDR information in the global CDR output table according to the type of the associated protocol; the global CDR output table is a CDR output table synthesized by carrying out flow analysis on data acquired by a Uu interface in real time;
s65, if a CDR of the association protocol is found? Sequentially executing the step S66, otherwise, jumping to execute the step S68;
s66, establishing a global CDR relation table of the service plane and the signaling plane, and returning to execute the step S64 until all CDRs in the global CDR table are traversed;
s67, determine whether the Uu interface tracks and updates the global CDR process? If yes, updating the global CDR relation table, otherwise, skipping to execute the step S68; the judging whether the Uu interface tracks and updates the global CDR process is to judge whether to track and update the global CDR process through tracking Area update TAU (tracking Area update);
and S68, finishing establishing a global CDR relation table and updating.
The invention relates to a multi-protocol correlation system suitable for an air interface monitoring instrument of an LTE-A network, which is used for carrying out multi-protocol correlation on original data of an air interface Uu of communication between LTE-A network UE and UTRAN by adopting a multi-protocol correlation method suitable for the air interface monitoring instrument of the LTE-A network; searching all service detailed records directly or indirectly associated with the service detailed records according to the service detailed records selected by the user, synthesizing a complete service flow by adopting a post-association method and displaying the complete service flow through an interface; the system comprises an acquisition card module, a data preprocessing module, a shunting module, a signaling decoding module and a protocol correlation analysis module: wherein,
a collection card module: acquiring original data of an air interface Uu of communication between LTE-A network UE and UTRAN;
a data preprocessing module: removing the original data, printing an identification label and storing the repeated data; the data elimination refers to deleting data which are not concerned by a user and data which are irrelevant to the later decoding synthesis association analysis; the identification tag comprises a message ID, a cell ID, a packet length, a data link type and a time tag;
a shunting module: carrying out multithreading shunting processing on the recombined data according to the protocol types, wherein shunted protocols are not related to each other and transmitting the shunted protocols to corresponding decoders;
a signaling decoding module: a decoder including respective protocols; analyzing the distributed data according to the protocol type, and extracting associated information; the associated information comprises a globally Unique Temporary UE Identity GUTI (Global Unique temporal UE Identity) for identifying a user Identity, an international Mobile Subscriber Identity IMSI (International Mobile Subscriber Identity), a Temporary Mobile Subscriber Identity TMSI (temporal Mobile Subscriber Identity), an MME Temporary Subscriber Identity MTMSI (MME-temporal Mobile Subscriber Identity), a Cell Radio network Temporary Identity C-RNTI (Cell-Radio network Temporary Identity), a UE Identity UEID (UE-Identity), and user IP address Identity information;
a protocol correlation analysis module: synthesizing the analysis results of the layer I, layer II and layer III protocols, including synthesizing the call detail record CDR of each protocol according to the protocol type and protocol rule, namely sub CDR; performing correlation analysis on the sub CDR, establishing a sub CDR relation table and updating according to the setting; respectively synthesizing a signaling plane CDR and a service plane CDR according to the signaling plane and the service plane; performing correlation analysis on the signaling side CDR and the service side CDR, establishing a global CDR relation table and updating according to the setting; and searching all service detailed records directly or indirectly associated with the service detailed records according to the service detailed records selected by the user, synthesizing a complete service flow by adopting a post-association method, and displaying the complete service flow through an interface.
Further, the signaling decoding module analyzes the shunted data according to the protocol type, including decoding the signaling of the Uu interface, that is, including analyzing the physical layer of layer i, the MAC protocol of layer ii, the RLC protocol and the PDCP protocol, and the RRC protocol of layer iii and the NAS protocol.
Further, the protocol correlation analysis module includes eight processing units, i.e., a signaling synthesis unit, a sub-CDR unit, a signaling plane CDR unit, a service plane CDR unit, a storage unit, a CDR correlation unit, a sub-CDR table output unit, and a CDR table output unit.
The multi-protocol correlation method and the system suitable for the LTE-A network air interface monitoring instrument have the advantages that the original data are collected through the air interface Uu of the communication between the LTE-A network UE and the UTRAN, the multi-protocol analysis and processing are carried out on the original data, the complete service flow chart is output according to the display rule selected by the user, and the detection and the maintenance of the LTE-A network are very facilitated.
Drawings
FIG. 1 is a schematic diagram of the flow of inter-protocol association and data service plane association according to the present invention;
FIG. 2 is a schematic diagram of a procedure for establishing a sub CDR relationship table and updating according to settings;
FIG. 3 is a schematic diagram of the association process between the signaling side CDR and the service side CDR of the present invention;
FIG. 4 is a schematic diagram of a process for establishing a global CDR relationship table and updating the table according to settings;
fig. 5 is a schematic structural diagram of a multi-protocol correlation system suitable for an air interface monitoring instrument of an LTE-a network according to the present invention.
The following describes a multi-protocol association method and system applicable to an air interface monitoring instrument of an LTE-a network in accordance with the present invention with reference to the accompanying drawings.
Detailed Description
The invention relates to a multi-protocol correlation method suitable for an air interface monitoring instrument of an LTE-A network, which comprises the following steps of:
s1, defining an LTE-A air interface, namely, the incidence relation among the protocols in the Uu interface layer I, the layer II and the layer III, and establishing an incidence relation table among the protocols; defining the incidence relation between the service plane and the signaling plane, and establishing a data service plane and signaling plane incidence relation table; the definition of the LTE-A air interface, namely the incidence relation among the protocols in the Uu interface layer I, the layer II and the layer III, means that the incidence relation among the protocols is defined through a field protocol type ProType, a protocol field length ProSize, an incidence main Key Key and a protocol incidence survival time ProTime; defining the incidence relation between the service plane and the signaling plane by a field service type SertType, a signaling type SignType, an incidence Key, a service field length SertSize, a signaling field length SignSize and an incidence survival time RelTime;
s2, collecting original data of an air interface Uu of the communication between the LTE-A network UE and the UTRAN;
s3, removing the original data, marking an identification label and storing the grouped data; the data elimination refers to deleting data which are not concerned by a user and data which are irrelevant to the later decoding synthesis association analysis; the identification tag comprises a message ID, a cell ID, a packet length, a data link type and a time tag;
s4, carrying out protocol analysis on each layer of signaling messages according to the protocol type by the recombined data; analyzing the signaling of the Uu interface, namely analyzing a physical layer of a layer I, an MAC protocol, an RLC protocol and a PDCP protocol of a layer II, and an RRC protocol and an NAS protocol of a layer III;
s5, synthesizing the call detail record CDR of each protocol according to the protocol type and the protocol rule, namely the sub CDR; performing correlation analysis on the sub CDR, establishing a sub CDR relation table and updating according to the setting; respectively synthesizing a signaling plane CDR and a service plane CDR according to the signaling plane and the service plane; performing correlation analysis on the signaling side CDR and the service side CDR, establishing a global CDR relation table and updating according to the setting;
s6, according to the business detail record selected by the user, searching all the business detail records directly or indirectly associated with the business detail record, synthesizing a complete business process by adopting a post-association method and displaying the business process through an interface.
Wherein, the fields of the sub-CDR relationship table in step S5 include: the method comprises the steps of protocol type, current service identification ID, service start time, service end time, an associated main key table, an associated service detailed record table and an extended service detailed record;
the fields of the global CDR relationship table include: the method comprises the steps of protocol type, service type, current service identification ID, user identification key information, service starting time, service ending time, an associated main key table, an associated service detailed record table and an extended service detailed record;
the associated primary key table definition field includes: the name of the associated main key and the value of the associated main key;
the associated service detailed record table comprises a user service identification detailed table;
the user service Identification detailed table comprises a globally Unique Temporary UE Identification GUTI (Global Unique temporal UE Identity) for identifying a user Identity, an international mobile Subscriber Identity IMSI (International Mobile Subscriber Identity), a Temporary mobile Subscriber Identity TMSI (temporal Mobile Subscriber Identity), an MME Temporary Subscriber Identity MTMSI (MME-temporal Mobile Subscriber Identity), a Cell Radio Network Temporary Identity C-RNTI (Cell-Radio Network temporal Identity), a UE Identity UE (UE-user Identity), a user IP address Identity and a user service data information table.
Fig. 1 is a schematic flow chart of the inter-protocol association and data service plane association of the present invention, and it can be seen from the diagram that in step S5, the sub-CDR association analysis is performed, including that the sub-CDR association refers to performing inter-protocol association and data service plane association by using a post-association method; the inter-protocol association comprises an association of an RRC protocol with a NAS protocol; the RRC protocol associated parameters comprise IMSI, C-RNTI, cell ID, EPS bearing ID and transactioniD obtained by GUTI association; the NAS protocol associated parameters comprise IMSI, MMEID, IEI, EPS mobile Identity and PTI; at this time, establishing parameters related to the RRC protocol and the NAS protocol, wherein the parameters include IMSI, cell ID, MMEID and EPS bearing ID, establishing the relation between the NAS protocol and the RRC protocol through the same IMSI, and analyzing the signaling flow of the same IMSI; the association of the data service plane comprises the association of an MAC protocol, an RLC protocol and a PDCP protocol; the parameters related to the MAC protocol comprise UEid, logical channel Identity, LCID and C-RNTI; the RLC protocol related parameters comprise UEid and RBid; the parameters related to the PDCP protocol comprise a PDCP _ SDU serial number and a RBid; respectively establishing association between an MAC protocol data flow and an RLC protocol data flow and association between the MAC protocol data flow and a PDCP protocol data flow through the same UEid and RBid;
wherein, the confirmation and the acquisition of the RRC protocol associated parameter and the NAS protocol associated parameter comprise:
the UE is started and attached to the whole process of an LTE-A network, the LTE is in an idle state, namely no service REquest, an Attach REquest message and a PDN Connectivity REquest message are sent, the Attach REquest message comprises user information IMSI and TA _ id, and the MME is allocated to a UE temporary identifier GUTI; at the moment, a GUTI and IMSI association relationship is established, and the GUTI is equal to the M-TMSI; when the UE establishes PDN connection in an attached manner, the SGW allocates a PDN address UserIP to the UE, at the moment, the association parameters are GUTI, UserIP, SGWIP and TEID, and the association relation between IMSI, TA _ id and UserIP parameters, namely one or more IP addresses, is established through GUTI;
when the UE establishes an RRC Request, namely a service Request exists, the UE initiates a call, responds to paging, an Attach Request, a TAU Request and a Detach Request from an IDLE state to a connected state, carries an initial NAS and establishment cause information, the eNB allocates a unique ID in a user cell, namely C-RNTI, and at the moment, the association relation between the C-RNTI and the GUTI, between the TA _ ID and the UserIP is established.
Fig. 2 is a schematic flow chart of the process of establishing a sub-CDR relationship table and updating according to the setting in the present invention, and it can be seen that the step S5 of establishing a sub-CDR relationship table and updating according to the setting includes the following steps:
s51, acquiring the ProType of the current data service protocol type;
s52, searching the association relation table between the protocols established in the step S1 according to the ProType;
s53, determine whether there is a protocol associated with the protocol? If yes, executing the step S54 in sequence, otherwise, jumping to execute the step S58;
s54, searching the sub CDR information in the sub CDR output table according to the associated protocol type; the sub CDR export table is a CDR export table formed by the signaling synthesis of a Uu interface;
s55, if a CDR of the association protocol is found? If yes, executing the step S56 in sequence, otherwise, jumping to execute the step S58;
s56, establishing a sub CDR relation table, returning to execute the step S54 until all CDRs in the sub CDR table are traversed;
s57, determine whether the Uu interface tracks and updates the sub-CDR flow? If yes, updating the sub CDR relation table, otherwise, skipping to execute the step S58; judging whether the Uu interface tracks and updates the sub CDR process refers to judging whether to track and update the sub CDR process through a tracking area update TAU (tracking area update);
and S58, finishing the establishment of the sub CDR relation table and updating.
Fig. 3 is a schematic diagram of the association process of the signaling side CDR and the service side CDR of the present invention, and it can be seen from the diagram that in step S5, the association analysis of the signaling side CDR and the service side CDR is performed, including analyzing the signaling side CDR and the service side CDR through the Uu interface signaling flow; the associated parameters of the signaling surface CDR comprise IMSI, C-RNTI, cell ID and signaling bearing ID; the associated parameters of the service surface CDR comprise Ueid, logical channel Identity, C-RNTI and data bearing ID; and establishing the association between the CDR of the signaling plane and the CDR of the service plane through the same C-RNTI.
Fig. 4 is a schematic flow chart of the process of establishing the global CDR relationship table and updating according to the setting in the present invention, and it can be seen that the establishing of the global CDR relationship table and updating according to the setting in step S5 includes the following steps:
s61, acquiring a ProType of the current data service protocol type;
s62, searching the association relation table between the signaling plane and the service plane established in the step S1 according to the protocol type;
s63, determine whether there is a signaling plane and service plane association protocol? If yes, executing step S64 in sequence, otherwise, jumping to execute step S6
S64, searching CDR information in the global CDR output table according to the type of the associated protocol; the global CDR output table is a CDR output table synthesized by carrying out flow analysis on data acquired by a Uu interface in real time;
s65, if a CDR of the association protocol is found? Sequentially executing the step S66, otherwise, jumping to execute the step S68;
s66, establishing a global CDR relation table of the service plane and the signaling plane, and returning to execute the step S64 until all CDRs in the global CDR table are traversed;
s67, determine whether the Uu interface tracks and updates the global CDR process? If yes, updating the global CDR relation table, otherwise, skipping to execute the step S68; the judging whether the Uu interface tracks and updates the global CDR process is to judge whether to track and update the global CDR process through tracking Area update TAU (tracking Area update);
and S68, finishing establishing a global CDR relation table and updating.
Fig. 5 is a schematic structural diagram of a multi-protocol correlation system suitable for an air interface monitoring instrument of an LTE-a network, and it can be seen from the diagram that the multi-protocol correlation system suitable for the air interface monitoring instrument of the LTE-a network performs multi-protocol correlation on original data of an air interface Uu of communication between LTE-a network UE and UTRAN by using the multi-protocol correlation method suitable for the air interface monitoring instrument of the LTE-a network; searching all service detailed records directly or indirectly associated with the service detailed records according to the service detailed records selected by the user, synthesizing a complete service flow by adopting a post-association method and displaying the complete service flow through an interface; the system comprises an acquisition card module, a data preprocessing module, a shunting module, a signaling decoding module and a protocol correlation analysis module: wherein,
a collection card module: acquiring original data of an air interface Uu of communication between LTE-A network UE and UTRAN;
a data preprocessing module: removing the original data, printing an identification label and storing the repeated data; the data elimination refers to deleting data which are not concerned by a user and data which are irrelevant to the later decoding synthesis association analysis; the identification tag comprises a message ID, a cell ID, a packet length, a data link type and a time tag;
a shunting module: carrying out multithreading shunting processing on the recombined data according to the protocol types, wherein shunted protocols are not related to each other and transmitting the shunted protocols to corresponding decoders;
a signaling decoding module: a decoder including respective protocols; analyzing the distributed data according to the protocol type, and extracting associated information; the associated information comprises a globally Unique Temporary UE Identity GUTI (Global Unique temporal UE Identity) for identifying a user Identity, an international Mobile Subscriber Identity IMSI (International Mobile Subscriber Identity), a Temporary Mobile Subscriber Identity TMSI (temporal Mobile Subscriber Identity), an MME Temporary Subscriber Identity MTMSI (MME-temporal Mobile Subscriber Identity), a Cell Radio network Temporary Identity C-RNTI (Cell-Radio network Temporary Identity), a UE Identity UEID (UE-Identity), and user IP address Identity information;
a protocol correlation analysis module: synthesizing the analysis results of the layer I, layer II and layer III protocols, including synthesizing the call detail record CDR of each protocol according to the protocol type and protocol rule, namely sub CDR; performing correlation analysis on the sub CDR, establishing a sub CDR relation table and updating according to the setting; respectively synthesizing a signaling plane CDR and a service plane CDR according to the signaling plane and the service plane; performing correlation analysis on the signaling side CDR and the service side CDR, establishing a global CDR relation table and updating according to the setting; and searching all service detailed records directly or indirectly associated with the service detailed records according to the service detailed records selected by the user, synthesizing a complete service flow by adopting a post-association method, and displaying the complete service flow through an interface.
Further, the signaling decoding module analyzes the shunted data according to the protocol type, including decoding the signaling of the Uu interface, that is, including analyzing the physical layer of layer i, the MAC protocol of layer ii, the RLC protocol and the PDCP protocol, and the RRC protocol of layer iii and the NAS protocol.
Further, the protocol correlation analysis module includes eight processing units, i.e., a signaling synthesis unit, a sub-CDR unit, a signaling plane CDR unit, a service plane CDR unit, a storage unit, a CDR correlation unit, a sub-CDR table output unit, and a CDR table output unit.
Obviously, the multi-protocol correlation method and the multi-protocol correlation system applicable to the LTE-A network air interface monitoring instrument have the advantages that the original data are collected through the air interface Uu of the communication between the LTE-A network UE and the UTRAN, the multi-protocol analysis and processing are carried out on the original data, the complete service flow chart is output according to the display rule selected by the user, and the detection and the maintenance of the LTE-A network are very facilitated.
Claims (8)
1. A multi-protocol correlation method suitable for an LTE-A network air interface monitoring instrument is characterized in that: the multi-protocol association method comprises the following steps:
s1, defining an LTE-A air interface, namely, the incidence relation among the protocols in the Uu interface layer I, the layer II and the layer III, and establishing an incidence relation table among the protocols; defining the incidence relation between the service plane and the signaling plane, and establishing a data service plane and signaling plane incidence relation table; the definition of the LTE-A air interface, namely the incidence relation among the protocols in the Uu interface layer I, the layer II and the layer III, means that the incidence relation among the protocols is defined through a field protocol type ProType, a protocol field length ProSize, an incidence main Key Key and a protocol incidence survival time ProTime; defining the incidence relation between the service plane and the signaling plane by a field service type SertType, a signaling type SignType, an incidence Key, a service field length SertSize, a signaling field length SignSize and an incidence survival time RelTime;
s2, collecting original data of an air interface Uu of the communication between the LTE-A network UE and the UTRAN;
s3, removing the original data, marking an identification label and storing the grouped data; the data elimination refers to deleting data which are not concerned by a user and data which are irrelevant to the later decoding synthesis association analysis; the identification tag comprises a message ID, a cell ID, a packet length, a data link type and a time tag;
s4, carrying out protocol analysis on each layer of signaling messages according to the protocol type by the recombined data; analyzing the signaling of the Uu interface, namely analyzing a physical layer of a layer I, an MAC protocol, an RLC protocol and a PDCP protocol of a layer II, and an RRC protocol and an NAS protocol of a layer III;
s5, synthesizing the call detail record CDR of each protocol according to the protocol type and the protocol rule, namely the sub CDR; performing correlation analysis on the sub CDR, establishing a sub CDR relation table and updating according to the setting; respectively synthesizing a signaling plane CDR and a service plane CDR according to the signaling plane and the service plane; performing correlation analysis on the signaling side CDR and the service side CDR, establishing a global CDR relation table and updating according to the setting;
s6, searching all service detailed records directly or indirectly associated with the service detailed records according to the service detailed records selected by the user, synthesizing a complete service flow by adopting a post-association method and displaying the complete service flow through an interface;
wherein:
the fields of the sub-CDR relationship table in step S5 include: the method comprises the steps of protocol type, current service identification ID, service start time, service end time, an associated main key table, an associated service detailed record table and an extended service detailed record;
the fields of the global CDR relationship table include: the method comprises the steps of protocol type, service type, current service identification ID, user identification key information, service starting time, service ending time, an associated main key table, an associated service detailed record table and an extended service detailed record;
the associated primary key table definition field includes: the name of the associated main key and the value of the associated main key;
the associated service detailed record table comprises a user service identification detailed table;
the user service Identification detailed table comprises a globally unique Temporary UE Identification GUTI for identifying the user Identity, a GlobalyUnique temporal UE Identity, an International Mobile subscriber Identity IMSI, an International Mobile subscriber Identity Number, a Temporary Mobile subscriber Identity TMSI, a temporal Mobile subscriber Identity, an MME Temporary subscriber Identity MTMSI, an MME-temporal Mobile subscriber Identity, a Cell Radio Network Temporary Identity C-RNTI, a Cell-ioRad Network temporal Identity, a UE Identity, a user IP address UserIP and a user service data information table.
2. The multi-protocol association method applicable to the LTE-A network air interface monitoring instrument of claim 1, wherein: performing association analysis on the sub-CDR in the step S5, wherein the sub-CDR association refers to performing inter-protocol association and data service plane association by using a post-association method; the inter-protocol association comprises an association of an RRC protocol with a NAS protocol; the RRC protocol associated parameters comprise IMSI, C-RNTI, cell ID, EPS bearing ID and transactioniD obtained by GUTI association; the NAS protocol associated parameters comprise IMSI, MMEID, IEI, EPS mobile Identity and PTI; at this time, establishing parameters related to the RRC protocol and the NAS protocol, wherein the parameters include IMSI, cell ID, MMEID and EPS bearing ID, establishing the relation between the NAS protocol and the RRC protocol through the same IMSI, and analyzing the signaling flow of the same IMSI; the association of the data service plane comprises the association of an MAC protocol, an RLC protocol and a PDCP protocol; the parameters related to the MAC protocol comprise UEid, logical channel Identity, LCID and C-RNTI; the RLC protocol related parameters comprise UEid and RBid; the parameters related to the PDCP protocol comprise a PDCP _ SDU serial number and a RBid; respectively establishing association between an MAC protocol data flow and an RLC protocol data flow and association between the MAC protocol data flow and a PDCP protocol data flow through the same UEid and RBid;
wherein, the confirmation and the acquisition of the RRC protocol associated parameter and the NAS protocol associated parameter comprise:
the UE is started and attached to the whole process of an LTE-A network, the LTE is in an idle state, namely no service REquest, an Attach REquest message and a PDN Connectivity REquest message are sent, the Attach REquest message comprises user information IMSI and TA _ id, and the MME is allocated to a UE temporary identifier GUTI; at the moment, a GUTI and IMSI association relationship is established, and the GUTI is equal to the M-TMSI; when the UE establishes PDN connection in an attached manner, the SGW allocates a PDN address UserIP to the UE, at the moment, the association parameters are GUTI, UserIP, SGWIP and TEID, and the association relation between IMSI, TA _ id and UserIP parameters, namely one or more IP addresses, is established through GUTI;
when the UE establishes an RRC Request, namely a service Request exists, the UE initiates a call, responds to paging, an attach Request, a TAU Request and a Detach Request from an IDLE state to a connected state, carries an initial NAS and establishment cause information, the eNB allocates a unique ID in a user cell, namely C-RNTI, and at the moment, the association relation between the C-RNTI and the GUTI, between the TA _ ID and the UserIP is established.
3. The multi-protocol association method applicable to the LTE-A network air interface monitoring instrument of claim 1, wherein: in step S5, the sub-CDR relationship table is established and updated according to the setting, including the following steps:
s51, acquiring the ProType of the current data service protocol type;
s52, searching the association relation table between the protocols established in the step S1 according to the ProType;
s53, judging whether a protocol related to the protocol exists or not; if yes, executing the step S54 in sequence, otherwise, jumping to execute the step S58;
s54, searching the sub CDR information in the sub CDR output table according to the associated protocol type; the sub CDR export table is a CDR export table formed by the signaling synthesis of a Uu interface;
s55, whether the CDR of the associated protocol is found; if yes, executing the step S56 in sequence, otherwise, jumping to execute the step S58;
s56, establishing a sub CDR relation table, returning to execute the step S54 until all CDRs in the sub CDR table are traversed;
s57, judging whether the Uu interface tracks and updates the sub CDR process; if yes, updating the sub CDR relation table, otherwise, skipping to execute the step S58; judging whether the Uu interface tracks and updates the sub CDR process refers to judging whether to track and update the sub CDR process through a tracking area update TAU (tracking area update);
and S58, finishing the establishment of the sub CDR relation table and updating.
4. The multi-protocol association method applicable to the LTE-A network air interface monitoring instrument of claim 1, wherein: in step S5, performing association analysis on the signaling plane CDR and the service plane CDR, including analyzing the signaling plane CDR and the service plane CDR through Uu interface signaling flow; the associated parameters of the signaling surface CDR comprise IMSI, C-RNTI, cell ID and signaling bearing ID; the associated parameters of the service surface CDR comprise Ueid, logical channel Identity, C-RNTI and data bearing ID; and establishing the association between the CDR of the signaling plane and the CDR of the service plane through the same C-RNTI.
5. The multi-protocol association method applicable to the LTE-A network air interface monitoring instrument of claim 1, wherein: in step S5, establishing a global CDR relationship table and updating the table according to the setting includes the following steps:
s61, acquiring a ProType of the current data service protocol type;
s62, searching the association relation table between the signaling plane and the service plane established in the step S1 according to the protocol type;
s63, judging whether a signaling plane and service plane association protocol exists; if yes, executing step S64 in sequence, otherwise, jumping to execute step S6
S64, searching CDR information in the global CDR output table according to the type of the associated protocol; the global CDR output table is a CDR output table synthesized by carrying out flow analysis on data acquired by a Uu interface in real time;
s65, whether the CDR of the associated protocol is found; sequentially executing the step S66, otherwise, jumping to execute the step S68;
s66, establishing a global CDR relation table of the service plane and the signaling plane, and returning to execute the step S64 until all CDRs in the global CDR table are traversed;
s67, judging whether the Uu interface tracks and updates the global CDR process; if yes, updating the global CDR relation table, otherwise, skipping to execute the step S68; judging whether the Uu interface tracks and updates the global CDR process is to judge whether to track and update the global CDR process through a tracking area update TAU (tracking area update);
and S68, finishing establishing a global CDR relation table and updating.
6. A multi-protocol correlation system suitable for an air interface monitoring instrument of an LTE-A network is characterized in that a multi-protocol correlation method suitable for the air interface monitoring instrument of the LTE-A network in any one of claims 1 to 5 is adopted to perform multi-protocol correlation on original data of an air interface Uu of communication between LTE-A network UE and UTRAN; searching all service detailed records directly or indirectly associated with the service detailed records according to the service detailed records selected by the user, synthesizing a complete service flow by adopting a post-association method and displaying the complete service flow through an interface; the system comprises an acquisition card module, a data preprocessing module, a shunting module, a signaling decoding module and a protocol correlation analysis module: wherein,
a collection card module: acquiring original data of an air interface Uu of communication between LTE-A network UE and UTRAN;
a data preprocessing module: removing the original data, printing an identification label and storing the repeated data; the data elimination refers to deleting data which are not concerned by a user and data which are irrelevant to the later decoding synthesis association analysis; the identification tag comprises a message ID, a cell ID, a packet length, a data link type and a time tag;
a shunting module: carrying out multithreading shunting processing on the recombined data according to the protocol types, wherein shunted protocols are not related to each other and transmitting the shunted protocols to corresponding decoders;
a signaling decoding module: a decoder including respective protocols; analyzing the distributed data according to the protocol type, and extracting associated information; the associated information comprises a globally Unique Temporary UE Identity GUTI (Global Unique Mobile Subscriber Identity) for identifying a user Identity, an international mobile Subscriber Identity IMSI (International Mobile Subscriber Identity), a Temporary mobile Subscriber Identity TMSI (temporal Mobile Subscriber Identity), an MME Temporary Subscriber Identity MTMSI (MME-temporal Mobile Subscriber Identity), a Cell Radio Network Temporary Identity C-RNTI (Cell-Radio Network Temporary Identity), a UE Identity UEID (UE-Udentity), and user IP address Identity information;
a protocol correlation analysis module: synthesizing the analysis results of the layer I, layer II and layer III protocols, including synthesizing the call detail record CDR of each protocol according to the protocol type and protocol rule, namely sub CDR; performing correlation analysis on the sub CDR, establishing a sub CDR relation table and updating according to the setting; respectively synthesizing a signaling plane CDR and a service plane CDR according to the signaling plane and the service plane; performing correlation analysis on the signaling side CDR and the service side CDR, establishing a global CDR relation table and updating according to the setting; and searching all service detailed records directly or indirectly associated with the service detailed records according to the service detailed records selected by the user, synthesizing a complete service flow by adopting a post-association method, and displaying the complete service flow through an interface.
7. The multiprotocol association system applicable to the air interface monitoring instrument of the LTE-a network of claim 6, wherein the signaling decoding module analyzes the shunted data according to the protocol type, including decoding the signaling of the Uu interface, that is, including analyzing the physical layer of layer i, the MAC protocol, RLC protocol and PDCP protocol of layer ii, and the RRC protocol and NAS protocol of layer iii.
8. The multi-protocol correlation system applicable to the air interface monitoring instrument of the LTE-a network of claim 6, wherein the protocol correlation analysis module comprises eight processing units, namely, a signaling synthesis unit, a sub-CDR unit, a signaling plane CDR unit, a service plane CDR unit, a storage unit, a CDR correlation unit, a sub-CDR table output unit, and a CDR table output unit.
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