CN103107978B - The correlating method of a kind of media gateway inside and outside business information and device - Google Patents
The correlating method of a kind of media gateway inside and outside business information and device Download PDFInfo
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- CN103107978B CN103107978B CN201110354451.1A CN201110354451A CN103107978B CN 103107978 B CN103107978 B CN 103107978B CN 201110354451 A CN201110354451 A CN 201110354451A CN 103107978 B CN103107978 B CN 103107978B
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Abstract
The present invention proposes correlating method and the device of a kind of media gateway inside and outside business information, comprising: in mobile switching center server MSC? obtain in Mc interface between Server and local terminal media gateway MGW this call out in signaling information, the described MSC of realtime transmission protocol RTP data flow? Server is the local terminal terminal iidentification of this call distribution described, distant terminal mark and described local terminal terminal iidentification and described distant terminal identify between corresponding relation; Set up the corresponding relation between described distant terminal mark and the signaling information of described RTP data flow and the corresponding relation between described local terminal terminal iidentification and the signaling information of A interface; The voice messaging of described A interface signaling information, described RTP data flow and the signaling information of described RTP data flow are associated.Compared to the prior art, the correlating method of the media webmaster inside and outside business information that the present invention proposes and device, can associate media gateway inside and outside business information more accurately and efficiently.
Description
Technical field
The present invention relates to networking technology area, particularly the correlating method of a kind of media gateway inside and outside business information and device.
Background technology
3G (Third Generation) Moblie standardization body (3GPP, 3rdGenerationPartnershipProject) at the 4th version (R4, Release4) circuit switched core network controlling to be separated with carrying is proposed, by the mobile switching centre (MSC in original circuit domain, MobileSwitchingCenter) Mobile Switching Center Server (MSCserver is separated into, and media gateway (MGW MobileSwitchingCenterserver), MediaGateway), carrying and being separated of controlling is realized.
Fig. 1 is 3GR4 mobile telephone exchange network structural representation in prior art.As shown in Figure 1, in the circuit domain of mobile softswitch core net, the independently mode that carries can be used to support different transport layers.Circuit domain core net forms primarily of MSCServer, GMSC (gateway mobile switching center) server (GMSCServer, GatewayMobileSwitchingCenterServer) and MGW.MSCServer primary responsibility processing signaling control section; MGW primary responsibility process bearing part.
Mc is the interface between (G) MSCServer and MGW, and major function carries out media control, to realize the mutual of SoftSwitch and media gateway, completes the function such as Bearer Control, media gateway management; Nc is the interface between MSCServer and (G) MSCServer, and major function solves the Call-Control1 controlled between the SoftSwitch that carrying is separated; Nb is the interface between MGW, and major function is the mode voice-bearer information using ATM or IP.In addition, wireless network (such as, BSC) is connected by A interface with between MSCServe, and in the core network, A access circuit management completes primarily of MSCServer; Adopt IP transmission means between MGW, save bandwidth to improve efficiency of transmission.
In order to analyze the voice quality of user in communication process, need the business information operating in media gateway inside and outside to associate.In the correlating method of current media gateway inside and outside business information, first the Nc interface between MSCServer and (G) MSCServer gathers soft switch interoffice agreement, then according to Subscriber Number and the air time of calling and called, the business information of media gateway inside and outside interface is associated.
Realizing in process of the present invention, inventor finds that in prior art, at least there are the following problems:
In the correlating method of current media gateway inside and outside business information, soft switch interoffice agreement must be gathered in Nc interface, and in the ordinary course of things, Nc interface between MSCServer and (G) MSCServer is separated with media gateway on physics is arranged, thus it is very inconvenient to cause gathering media gateway inside and outside interface protocol.
Summary of the invention
In view of this, main purpose of the present invention is the correlating method providing a kind of media gateway inside and outside business information, can media gateway inside and outside interface business information be associated more accurately and efficiently.
Another object of the present invention is to the associated apparatus that a kind of media gateway inside and outside business information is provided, can more accurately and efficiently media gateway inside and outside interface business information be associated.
For achieving the above object, technical scheme of the present invention is achieved in that
A correlating method for media gateway inside and outside business information, the method comprises:
Obtain in Mc interface between mobile switching center server MSC Server and local terminal media gateway MGW this call out in the signaling information of realtime transmission protocol RTP data flow, described MSCServer be the local terminal terminal iidentification of this call distribution described, distant terminal identify and described local terminal terminal iidentification and described distant terminal identify between corresponding relation;
Set up described distant terminal mark with the signaling information of described RTP data flow between corresponding relation, and described local terminal terminal iidentification and described this call out in A interface signaling information between corresponding relation;
Corresponding relation between identifying according to described local terminal terminal iidentification and described distant terminal, the corresponding relation between described local terminal terminal iidentification and the signaling information of described A interface, described distant terminal identify the corresponding relation between the signaling information of described RTP data flow and the corresponding relation between the voice messaging of described RTP data flow set up in advance and the signaling information of described RTP data flow, the voice messaging of the signaling information of described A interface, described RTP data flow and the signaling information of described RTP data flow are associated.
An associated apparatus for media gateway inside and outside business information, comprising:
Acquiring unit, for obtain in the Mc interface between mobile switching center server MSC Server and local terminal media gateway MGW this call out in the signaling information of realtime transmission protocol RTP data flow, described MSCServer is the local terminal terminal iidentification of this call distribution described, distant terminal mark and the corresponding relation between described local terminal terminal iidentification and described distant terminal mark, the signaling information of described distant terminal mark and described RTP data flow is sent to the first associative cell, described local terminal terminal iidentification is sent to the second associative cell, corresponding relation between described local terminal terminal iidentification and described distant terminal being identified sends to the 3rd associative cell,
Described first associative cell, for setting up the corresponding relation between described distant terminal mark and the signaling information of described RTP data flow, sends to the 3rd associative cell by the corresponding relation between described distant terminal mark and the signaling information of described RTP data flow;
Described second associative cell, for set up described local terminal terminal iidentification and described this call out in A interface signaling information between corresponding relation, the corresponding relation between described local terminal terminal iidentification and the signaling information of described A interface is sent to the 3rd associative cell;
Described 3rd associative cell, identify the corresponding relation between the signaling information of described RTP data flow and the corresponding relation between the voice messaging of RTP data flow set up in advance and the signaling information of described RTP data flow for the corresponding relation between identifying according to the described local terminal terminal iidentification that receives and described distant terminal, the corresponding relation between described local terminal terminal iidentification and the signaling information of described A interface, described distant terminal, the voice messaging of the signaling information of described A interface, described RTP data flow and the signaling information of described RTP data flow are associated.
As can be seen here, in the present invention, corresponding relation between being identified by local terminal terminal iidentification and distant terminal, corresponding relation between signaling information in local terminal terminal iidentification and A interface and distant terminal identify the corresponding relation between the signaling information in RTP data flow, achieve the association between the signaling information of A interface and the signaling information of RTP data flow, and according to the corresponding relation between the voice messaging of the RTP data flow set up in advance and the signaling information of RTP data flow, achieve the signaling information of A interface, the voice messaging of RTP data flow associates with the signaling information of RTP data flow, thus solve technical barrier media gateway inside and outside interface business information being carried out correlating method, can analyze the voice quality of user in communication process more easily.
Accompanying drawing explanation
Fig. 1 is 3GR4 mobile telephone exchange network structural representation in prior art.
Fig. 2 is the correlating method flow chart of media gateway inside and outside of the present invention business information.
Fig. 3 is the acquisition methods flow chart of the signaling information of RTP data flow of the present invention.
Fig. 4 is the correlating method flow chart of the voice messaging of RTP data flow of the present invention and the signaling information of RTP data flow.
Fig. 5 is associated apparatus first structural representation of media gateway inside and outside of the present invention business information.
Fig. 6 is associated apparatus second structural representation of media gateway inside and outside of the present invention business information.
Embodiment
For problems of the prior art, propose the correlating method of the media gateway inside and outside business information after a kind of improvement in the present invention, can more accurately and efficiently media gateway inside and outside interface business information be associated.
For make technical scheme of the present invention clearly, understand, to develop simultaneously embodiment referring to accompanying drawing, scheme of the present invention be described in further detail.
Fig. 2 is the correlating method flow chart of media gateway inside and outside of the present invention business information.As shown in Figure 2, comprise the following steps:
Step 201, obtain in the Mc interface between mobile switching center server MSC Server and local terminal media gateway MGW this call out in the signaling information of realtime transmission protocol RTP data flow, described MSCServer be the local terminal terminal iidentification of this call distribution described, distant terminal identify and described local terminal terminal iidentification and described distant terminal identify between corresponding relation.
In the prior art, MSCServer carries out control and management based on H.248 agreement to local terminal MGW, and local terminal MGW realizes the carrying of media business according to the order that MSCServer sends.Specify in H.248 agreement, terminal is the logic entity that MGW sent or received a Media Stream, and this terminal can correspond to a Media Stream, such as a TDM voice flow or a PTP data flow, it depends on calling, once end of calling, this terminal is just withered away, and is therefore also called terminal in short-term.A terminal is described by a terminal iidentification (TerminalID), and each terminal has a unique terminal iidentification.
In the core net of 3GR4 soft switch, realtime transmission protocol RTP is adopted between local terminal MGW and opposite end MGW, for the live signal such as audio frequency, video provides transfer of data end to end, the function of Real-time Transport Protocol is to provide payload type instruction, data packet sequence number, data transmitting time stamp and data source identification, and receiving terminal can correctly to be recombinated primary signal according to these information.Can transmit to receiving terminal based on the RTP data flow of Real-time Transport Protocol transmission between local terminal MGW and opposite end MGW and recover the necessary timing of live signal and order information, and provide QoS detection means to receiving-transmitting sides and network operator.
Local terminal MGW is receiving subscriber equipment (UE, UserEquipment) after the call request sent, the media flow type received is another kind of form by a kind of format conversion by local terminal MGW, such as, by the RTP data stream format that the TDM voice flow format conversion in Circuit Switching Network is in IP network, and described TDM voice flow and described RTP data flow one_to_one corresponding.Therefore, when MSCServer is after receiving the call request that UE sent by local terminal MGW, MSCServer is this call distribution two terminal iidentifications, and they are local terminal terminal iidentification and distant terminal mark respectively, wherein, local terminal terminal iidentification is for identifying the TDM voice flow in this calling; Distant terminal mark is for identifying the RTP data flow in this calling, and MSCServer is by sending to the TDM voice flow of local terminal MGW and the RTP data flow one_to_one corresponding through described local terminal MGW conversion for this call distribution local terminal terminal iidentification and distant terminal mark by UE.
Particularly, MSCServer is by the local terminal terminal iidentification for this call distribution, the corresponding relation of distant terminal mark and described local terminal terminal iidentification and described distant terminal mark is carried at MSCServer and sends in the H.248 message of local terminal MGW, therefore, in this step, this H.248 message is obtained in Mc interface between MSCServer and local terminal MGW, and according to predetermined analytical method to this H.248 message analyze, just the local terminal terminal iidentification that MSCServer is this call distribution can be obtained, corresponding relation between distant terminal mark and local terminal terminal and distant terminal identify.
In addition, MSCServer is after the call request receiving UE transmission, need the signaling information of the RTP data flow determining to carry this calling between local terminal MGW and opposite end MGW, i.e. the source IP address of RTP data flow, object IP address, source user datagram protocol UDP port number and object UDP port number.Fig. 3 is the acquisition methods flow chart of the signaling information of RTP data flow of the present invention.As shown in Figure 3, described method comprises the steps:
Step 301, obtains source IP address and the source UDP port number of RTP data flow in Mc interface.
In the prior art, Nc interface is the standard interface between MSCServer, and run the Call-Control1 Bearer Independent Call Control Protocol irrelevant with carrying, this agreement belongs to application layer control protocol, can be used for foundation, amendment, terminating call.Nc interface provides the station to station call control ability independent of user plane bearer technology and chain of command signaling transmission techniques for circuit domain business, realizes the intercommunication between heterogeneous networks.The most basic feature of BICC is separated Call-Control1 and Bearer Control two aspects, make call service function (CSF) and bearer control function (BCF) separate.According to the definition of Bearer Independent Call Control Protocol, Bearer Independent Call Control Protocol can utilize any transmission network to carry out signalling, as IP, ATM, TDM net etc.Application message transmission APM mechanism in Bearer Independent Call Control Protocol makes can carry relevant information alternately between the call control node at Nc interface two ends, comprises carrying address, connects reference, bearer properties, carrying set up mode etc.
In Bearer Independent Call Control Protocol, Bearer Independent Call Control Protocol provides following three kinds of diverse ways for arranging IP transmission connector: mode is set up in the carrying of fast forword tunnel, mode is set up in the carrying of delay forward tunnel and postpone the carrying of backward tunnel sets up mode.Set up mode for the carrying of fast forword tunnel, Bearer Control message is carried in IAM and follow-up APM; Set up mode for the carrying of delay forward tunnel, bear control information is carried after first in APM message APM subsequently; Set up mode for delay backward tunnel carrying, Bearer Control message is carried after first in APM and follow-up APM.
In this step, MSCServer1 is after the call request receiving user's transmission, MSCServer1 requires that MGW1 provides source IP address and the source UDP port number of the RTP data flow of this calling of carrying, MGW1 is after receiving bind-request message, generate one and comprise the source IP address of RTP data flow and the conversation description of source UDP port number, this conversation description is returned to MSCServer1 by MGW1, this conversation description represents with SDP (SessionDescriptionProtocol, Session Description Protocol) form.MSCServer1 carries out called number analysis, and send IAM message to MSCServer2, wherein, IAM message is designated as " forward bearer foundation ", can comprise the ID of MGW1 in this message.MSCServer2 is after receiving described IAM message, select MGW2, MSCServer2 requires that MGW2 provides object IP address and the object UDP port number of the RTP data flow of this calling of carrying, MSCServer2 sends to MSCServer1 after receiving described object IP address and object UDP port number, comprise the ID of MGW2 simultaneously, MSCServer1, after receiving described object IP address and object UDP port number, requires that MGW1 is established to the carrying of object IP address and object UDP port number.The RTP that MGW1 is established to MGW2 connects.
Step 302, obtains object IP address and the object UDP port number of RTP data flow in Mc interface.
In step 301 and step 302, obtain source IP address and source UDP port number that MGW1 returns to MSCServer1 in the Mc interface between MSCServer1 and MGW1, and MSCServer1 sends to object IP address and the object UDP port number of MGW1.
Step 202, set up distant terminal mark with the signaling information of RTP data flow between corresponding relation, and local terminal terminal iidentification and this call out in A interface signaling information between corresponding relation.
(1) corresponding relation between distant terminal mark and the signaling information of RTP data flow is set up.
In this step, in Mc interface, obtaining the H.248 message that MSCServer sends to local terminal MGW, by adopting predetermined analytical method to analyze described H.248 message, obtaining the distant terminal mark that MSCServer is this call distribution.In addition, after obtaining by step 301 and step 302 signaling information carrying the RTP data flow in this calling between local terminal MGW and opposite end MGW, setting up MSCServer is corresponding relation between the distant terminal mark of this call distribution with the signaling information of RTP data flow, namely sets up distant terminal mark and the source IP address of RTP data flow, source UDP port number, corresponding relation between object IP address and object UDP port number.
(2) set up local terminal terminal iidentification and this call out in A interface signaling information between corresponding relation.
In the prior art, the A interface between BSC and MSCServer is for realizing the communication resource to the reasonable distribution of subscriber equipment and mobile management.Because the signaling in A interface and speech channel separate, and signaling link can transmit the signaling of multiple speech channel simultaneously, so must identify this signaling in each signaling is the signaling belonging to which speech channel, otherwise just cannot instruct the control object of this signaling, therefore, in Signalling exchange, cic circuit identification code CIC each speech channel corresponding is adopted to be numbered.In the core network, A access circuit management completes primarily of MSCServer, and MSCServer major function is the irrelevant function in chain of command process, SMS business etc. and bearing part of the mobile management of user, BSS access, call business.After MSCServer receives the call request that UE sent by local terminal MGW, MSCServer is that the TDM voice flow in this calling selects one by the idle A circuit of MSCServer to BSC, simultaneously for this call distribution carries pulse code modulation PCM system number and the cic circuit identification code CIC of this calling in A interface, wherein, multiple CIC is comprised at each PCM, such as in PCM primary group signal, each PCM comprises 32 CIC.
In this step, be after the local terminal terminal iidentification of this call distribution deducts the first constant precalculating and know by MSCServer, round divided by after the second predetermined constant (such as 32) again, obtain the PCM system number in the signaling information of the A interface in this calling; After described local terminal terminal iidentification is deducted the first constant precalculating and know, then divided by remainder number after described predetermined constant, obtain the circuit identification code CIC in the signaling information of described A interface.
Such as, be that the local terminal terminal iidentification of this call distribution deducts that to precalculate the first constant known be 100 by obtaining MSCServer in Mc interface, equal 3 by 100 divided by rounding after predetermined second constant 32, then the PCM system number obtaining in A interface the A interface carried in this calling is 3; Equal 4 by 100 divided by 32 remainder numbers, then the circuit identification code CIC obtained in the signaling information of A interface is 4.
It should be noted that, in specific embodiment of the invention, do not limit the execution sequence of step 202 (1) and step 202 (2), first can perform step 202 (1), rear execution step 202 (2); Also first can perform step 202 (2), then perform step 202 (1); Step 202 (1) and step 202 (2) can also be performed simultaneously.
Step 203, corresponding relation between identifying according to local terminal terminal iidentification and distant terminal, the corresponding relation between local terminal terminal iidentification and the signaling information of A interface, distant terminal identify the corresponding relation between the signaling information of RTP data flow and the corresponding relation between the voice messaging of RTP data flow set up in advance and the signaling information of RTP data flow, the voice messaging of the signaling information of A interface, RTP data flow and the signaling information of RTP data flow are associated.
Particularly, can by setting up the mapping table of the signaling information of the signaling information of described A interface, the voice messaging of described RTP data flow and described RTP data flow, the signaling information of the signaling information of just described A interface, the voice messaging of described RTP data flow and described RTP data flow associates, and also the voice messaging of the signaling information of described A interface, described RTP data flow and the signaling information of described RTP data flow can be associated by other interrelational forms.
According to above-mentioned description, by above-mentioned step 201 ~ 203, the signaling information of A interface can be realized, the voice messaging of RTP data flow associates with the signaling information of RTP data flow, thus solve technical barrier media gateway inside and outside interface business information being carried out correlating method, can analyze the voice quality of user in communication process more easily.
Preferably, before the voice messaging of the signaling information of described A interface, described RTP data flow and the signaling information of described RTP data flow are associated, the corresponding relation between the voice messaging of RTP data flow and the signaling information of RTP data flow can also be set up in advance, so, in the inventive solutions, the correlating method of the voice messaging of RTP data flow and the signaling information of RTP data flow is proposed further.Fig. 4 is the correlating method flow chart of the voice messaging of RTP data flow of the present invention and the signaling information of RTP data flow.As shown in Figure 4, in a particular embodiment of the present invention, before step 203, can further include step as described below:
Step 401, obtains RTP data flow in the Nb interface between local terminal MGW and opposite end MGW.
In this step, between local terminal MGW and opposite end MGW, adopt Real-time Transport Protocol to provide transfer of data end to end for this calling, therefore, the RTP data flow of this calling of carrying in the Nb interface between local terminal MGW and opposite end MGW, can be obtained.
Step 402, according to predetermined extracting rule, extracts the voice messaging of described RTP data flow and the signaling information of described RTP data flow from described RTP data flow.
In this step, after obtaining RTP data flow in Nb interface between local terminal MGW and opposite end MGW, from described RTP data flow, a random extraction RTP packet, extracts the signaling information of described RTP data flow from described RTP packet according to predetermined extracting rule.Particularly, according to the encapsulation format that described RTP packet is prespecified, from described RTP packet, the source IP address of described RTP data flow, object IP address, source UDP port number and object UDP port number is extracted respectively.
In addition, in this step, the voice messaging of described RTP data flow can also be extracted from described RTP data flow, such as, from described RTP data flow, random several RTP packets of extraction, analyze several packets described according to predetermined analytical method, obtain the voice messaging of described RTP data flow, such as, the packet loss of described RTP data flow, shake, time delay, noise, interrupted and information of uttering long and high-pitched sounds, but do not get rid of other voice messagings that can also obtain in described RTP data flow.
Step 403, sets up the corresponding relation between the voice messaging of described RTP data flow and the signaling information of described RTP data flow.
In this step, after obtaining the voice messaging of described RTP data flow and the signaling information of described RTP packet by step 402, the corresponding relation between the voice messaging of described RTP data flow and the signaling information of described RTP data flow is set up.
The correlating method of the media gateway inside and outside business information that the present invention proposes, corresponding relation between being identified by local terminal terminal iidentification and distant terminal, corresponding relation between signaling information in local terminal terminal iidentification and A interface and distant terminal identify the corresponding relation between the signaling information in RTP data flow, achieve the association between the signaling information of A interface and the signaling information of RTP data flow, and according to the corresponding relation between the voice messaging of the RTP data flow set up in advance and the signaling information of RTP data flow, achieve the signaling information of A interface, the voice messaging of RTP data flow associates with the signaling information of RTP data flow, thus solve technical barrier media gateway inside and outside business information being carried out correlating method, can analyze the voice quality of user in communication process more easily.
Fig. 5 is associated apparatus first structural representation of media gateway inside and outside of the present invention business information.As shown in Figure 5, described device comprises:
Acquiring unit 501, for obtain in the Mc interface between mobile switching center server MSC Server and local terminal media gateway MGW this call out in the signaling information of realtime transmission protocol RTP data flow, described MSCServer is the local terminal terminal iidentification of this call distribution described, distant terminal mark and the corresponding relation between described local terminal terminal iidentification and described distant terminal mark, the signaling information of described distant terminal mark and described RTP data flow is sent to the first associative cell 502, described local terminal terminal iidentification is sent to the second associative cell 503, corresponding relation between described local terminal terminal iidentification and described distant terminal being identified sends to the 3rd associative cell 504,
Described first associative cell 502, for setting up the corresponding relation between described distant terminal mark and the signaling information of described RTP data flow, the corresponding relation between described distant terminal mark and the signaling information of described RTP data flow is sent to the 3rd associative cell 504;
Described second associative cell 503, for set up described local terminal terminal iidentification and described this call out in A interface signaling information between corresponding relation, the corresponding relation between described local terminal terminal iidentification and the signaling information of described A interface is sent to the 3rd associative cell 504;
Described 3rd associative cell 504, corresponding relation between the described local terminal terminal iidentification received for basis and described distant terminal identify, corresponding relation between the signaling information of described local terminal terminal iidentification and described A interface, corresponding relation between described distant terminal mark with the signaling information of described RTP data flow and the corresponding relation between the voice messaging of RTP data flow set up in advance and the signaling information of described RTP data flow, by the signaling information of described A interface, the voice messaging of described RTP data flow and the signaling information of described RTP data flow associate.
Further, Fig. 6 is associated apparatus second structural representation of media gateway inside and outside of the present invention business information.As shown in Figure 6, described device also comprises converting unit 505;
Described acquiring unit 501, also for described local terminal terminal iidentification is sent to described converting unit 505;
Described converting unit 505, for described local terminal terminal iidentification being converted to according to the transformation rule set up in advance the signaling information of the A interface in this calling described, and the signaling information of described local terminal terminal iidentification and described A interface is sent to described second associative cell 503.
Further, described converting unit 505 comprises:
First conversion subelement 5051, after described local terminal terminal iidentification being deducted the first constant of precalculating and knowing, then rounds divided by after predetermined second constant, obtains the pulse code modulation PCM system number in the signaling information of described A interface;
Second conversion subelement 5052, for being deducted by described local terminal terminal iidentification after described first constant divided by remainder number after described predetermined second constant, obtains the circuit identification code CIC in the signaling information of described A interface.
Further, described device also comprises extraction unit 506 and the 4th associative cell 507;
Described acquiring unit 501, also for obtaining the RTP data flow of described RTP data flow in the Nb interface between described local terminal MGW and opposite end MGW, gives described extraction unit 506 by described RTP data flow;
Described extraction unit 506, for according to predetermined extracting rule, from the described RTP data flow received, extract the voice messaging of described RTP data flow and the signaling information of described RTP data flow, the signaling information of the voice messaging of described RTP data flow and described RTP data flow is sent to described 4th associative cell 507;
Described 4th associative cell 507, for setting up the corresponding relation between the voice messaging of described RTP data flow and the signaling information of described RTP data flow, the corresponding relation between the voice messaging of described RTP data flow and the signaling information of described RTP data flow is sent to described 3rd associative cell 504.
The associated apparatus of the media gateway inside and outside business information that the present invention proposes, corresponding relation between being identified by local terminal terminal iidentification and distant terminal, corresponding relation between signaling information in local terminal terminal iidentification and A interface and distant terminal identify the corresponding relation between the signaling information in RTP data flow, achieve the association between the signaling information of A interface and the signaling information of RTP data flow, and according to the corresponding relation between the voice messaging of the RTP data flow set up in advance and the signaling information of RTP data flow, achieve the signaling information of A interface, the voice messaging of RTP data flow associates with the signaling information of RTP data flow, thus solve technical barrier media gateway inside and outside interface business information being carried out correlating method, can analyze the voice quality of user in communication process more easily.
The specific works flow process of Fig. 5 and Fig. 6 shown device embodiment please refer to the respective description in embodiment of the method shown in Fig. 2, repeats no more.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (13)
1. a correlating method for media gateway inside and outside business information, is characterized in that, comprising:
Obtain in Mc interface between mobile switching center server MSC Server and local terminal media gateway MGW this call out in the signaling information of realtime transmission protocol RTP data flow, described MSCServer be the local terminal terminal iidentification of this call distribution described, distant terminal identify and described local terminal terminal iidentification and described distant terminal identify between corresponding relation;
Set up described distant terminal mark with the signaling information of described RTP data flow between corresponding relation, and described local terminal terminal iidentification and described this call out in A interface signaling information between corresponding relation;
Corresponding relation between identifying according to described local terminal terminal iidentification and described distant terminal, the corresponding relation between described local terminal terminal iidentification and the signaling information of described A interface, described distant terminal identify the corresponding relation between the signaling information of described RTP data flow and the corresponding relation between the voice messaging of described RTP data flow set up in advance and the signaling information of described RTP data flow, the voice messaging of the signaling information of described A interface, described RTP data flow and the signaling information of described RTP data flow are associated;
Wherein, described local terminal terminal iidentification is for identifying the TDM voice flow in this calling, and described distant terminal mark is for identifying the RTP data flow in this calling.
2. method according to claim 1, is characterized in that, before the corresponding relation between the described signaling information setting up described local terminal terminal iidentification and described A interface, comprising:
According to the transformation rule set up in advance, described local terminal terminal iidentification is converted to the signaling information of the A interface in this calling described.
3. method according to claim 2, is characterized in that, also comprises:
After described local terminal terminal iidentification is deducted the first constant precalculating and know, then round divided by after predetermined second constant, obtain the pulse code modulation PCM system number in the signaling information of described A interface;
After described local terminal terminal iidentification is deducted described first constant, then divided by remainder number after described predetermined second constant, obtain the circuit identification code CIC in the signaling information of described A interface.
4. method according to claim 1, is characterized in that, described the voice messaging of the signaling information of described A interface, described RTP data flow and the signaling information of described RTP data flow associated before, also comprise:
Described RTP data flow is obtained in Nb interface between described local terminal MGW and opposite end MGW;
According to predetermined extracting rule, from described RTP data flow, extract the voice messaging of described RTP data flow and the signaling information of described RTP data flow;
Set up the corresponding relation between the voice messaging of described RTP data flow and the signaling information of described RTP data flow.
5. method according to claim 4, is characterized in that, the signaling information of described RTP data flow comprises:
The source IP address of described RTP data flow, object IP address, source UDP port number and object UDP port number.
6. method according to claim 4, is characterized in that, the voice messaging of described RTP data flow comprises: the packet loss of described RTP data flow, shake, time delay, noise, interrupted and information of uttering long and high-pitched sounds.
7. method according to claim 1, is characterized in that, describedly the voice messaging of the signaling information of described A interface, described RTP data flow and the signaling information of described RTP data flow is associated, and comprising:
Set up the mapping table of the signaling information of described A interface, the voice messaging of described RTP data flow and the signaling information of described RTP data flow.
8. an associated apparatus for media gateway inside and outside business information, is characterized in that, comprising:
Acquiring unit, for obtain in the Mc interface between mobile switching center server MSC Server and local terminal media gateway MGW this call out in the signaling information of realtime transmission protocol RTP data flow, described MSCServer is the local terminal terminal iidentification of this call distribution described, distant terminal mark and the corresponding relation between described local terminal terminal iidentification and described distant terminal mark, the signaling information of described distant terminal mark and described RTP data flow is sent to the first associative cell, described local terminal terminal iidentification is sent to the second associative cell, corresponding relation between described local terminal terminal iidentification and described distant terminal being identified sends to the 3rd associative cell,
Described first associative cell, for setting up the corresponding relation between described distant terminal mark and the signaling information of described RTP data flow, sends to the 3rd associative cell by the corresponding relation between described distant terminal mark and the signaling information of described RTP data flow;
Described second associative cell, for set up described local terminal terminal iidentification and described this call out in A interface signaling information between corresponding relation, the signaling information of described local terminal terminal iidentification and described A interface is sent to the 3rd associative cell;
Described 3rd associative cell, identify the corresponding relation between the signaling information of described RTP data flow and the corresponding relation between the voice messaging of RTP data flow set up in advance and the signaling information of described RTP data flow for the corresponding relation between identifying according to the described local terminal terminal iidentification that receives and described distant terminal, the corresponding relation between described local terminal terminal iidentification and the signaling information of described A interface, described distant terminal, the voice messaging of the signaling information of described A interface, described RTP data flow and the signaling information of described RTP data flow are associated; Wherein,
Described local terminal terminal iidentification is for identifying the TDM voice flow in this calling, and described distant terminal mark is for identifying the RTP data flow in this calling.
9. device according to claim 8, is characterized in that, described device also comprises converting unit;
Described acquiring unit, also for described local terminal terminal iidentification is sent to described converting unit;
Described converting unit, for described local terminal terminal iidentification being converted to according to the transformation rule set up in advance the signaling information of the A interface in this calling described, and the signaling information of described local terminal terminal iidentification and described A interface is sent to described second associative cell.
10. device according to claim 9, is characterized in that, described converting unit comprises:
First conversion subelement, after described local terminal terminal iidentification being deducted the first constant of precalculating and knowing, then rounds divided by after predetermined second constant, obtains the pulse code modulation PCM system number in the signaling information of described A interface;
Second conversion subelement, after described local terminal terminal iidentification is deducted described first constant, then divided by remainder number after described predetermined second constant, obtains the circuit identification code CIC in the signaling information of described A interface.
11. devices according to claim 8, is characterized in that, also comprise extraction unit and the 4th associative cell;
Described acquiring unit, also for obtaining described RTP data flow in the Nb interface between described local terminal MGW and opposite end MGW, gives described extraction unit by described RTP data flow;
Described extraction unit, for according to predetermined extracting rule, from the described RTP data flow received, extract the voice messaging of described RTP data flow and the signaling information of described RTP data flow, the signaling information of the voice messaging of described RTP data flow and described RTP data flow is sent to described 4th associative cell;
Described 4th associative cell, for setting up the corresponding relation between the voice messaging of described RTP data flow and the signaling information of described RTP data flow, the corresponding relation between the voice messaging of described RTP data flow and the signaling information of described RTP data flow is sent to described 3rd associative cell.
12. devices according to claim 11, is characterized in that, the signaling information of described RTP data flow comprises:
The source IP address of described RTP data flow, object IP address, source UDP port number and object UDP port number.
13. devices according to claim 11, is characterized in that, the voice messaging of described RTP data flow comprises: the packet loss of described RTP data flow, shake, time delay, noise, interrupted and information of uttering long and high-pitched sounds.
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