CN102571722A - Converged communication system and multi-protocol adaptation method suitable for same - Google Patents
Converged communication system and multi-protocol adaptation method suitable for same Download PDFInfo
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Abstract
The invention discloses a novel converged communication system and a multi-protocol adaptation method suitable for the same. Compared with a traditional converged communication system, the converged communication system is characterized in that a protocol adaptation module composed of a plurality of protocol adaptation sub-modules is added, and all the protocol adaptation sub-modules mainly complete adaptation functions of all protocol information. After the protocol adaptation module receives the protocol information from a protocol processing module, the specific protocol information is adapted to unified information which is sent to an upper-layer call control module. After the protocol adaptation module receives the unified information from the upper-layer call control module, the unified information is converted into protocols supported by the protocol adaptation module, and the protocols are sent to the protocol processing module. In the converged communication system, the protocol adaptation module shields differences of a bottom-layer heterogeneous network; therefore the call control module is simple and efficient, specific application independent of the protocols is achieved, and performance of the whole converged communication system is promoted remarkably.
Description
Technical field
The present invention relates to the converged communication field; Specifically; The present invention relates to a kind of new converged communication system; And the multi-protocols adaptation method that is applicable to this converged communication system; Promptly can in converged communication system, define a cover unified message,, finally reach the purpose that improves the converged communication system systematic function, reduces converged communication system design difficulty and agreement extensibility to realize the communication of different agreement in converged communication system through converged communication system multi-protocols adaptation method provided by the invention.
Background technology
Converged communication is meant that a computer technology and conventional communication techniques merge all-in-one-piece new traffic pattern, promptly merge computer network and conventional communication networks on a network platform, thereby on a network platform, realize numerous application services.
The primary goal of converged communication system is to realize the network integration.For reaching the purpose of the network integration, must support the various signaling protocols and the MGCP that exist on the present network, for example Session Initiation Protocol, H323 agreement, ISDN User Part, SS7 agreement, RANAP and H.248 agreement etc.On the basis of realizing the network integration, realize multiple business, like phone, fax, E-mail, voice mail, video conference and videoconference etc.Converged communication system shown in Figure 1 comprises that mainly server, the SIP of a converged communication system access terminal and H323 accesses terminal etc.
General converged communication system mainly is made up of three parts: protocol process module, Call Control Block and Service Processing Module.At present, converged communication system mainly exists following shortcomings and restriction:
1, protocol process module only receives various protocol message from bottom-layer network, and directly sends to the Call Control Block on upper strata to them.This just requires Call Control Block must be able to handle the calling control relevant with various heterogeneous protocol, and this method will certainly cause the huge and complicated of Call Control Block.
If the initiator of 2 callings and reciever are from various network, Call Control Block also will be handled the conversion between the different agreement message.Can know that according to above analysis if converged communication platform will be supported N kind agreement, Call Control Block not only will provide the basic calling controlling models towards N kind agreement, also must accomplish kind of the protocol translation of N * (N-1)/2.
3, Call Control Block is the Core Feature of converged communication platform, its huge and complicated performance and the design difficulty that will influence whole converged communication system greatly.
Summary of the invention
In view of the foregoing, main purpose of the present invention provides the new converged communication system that a kind of system design difficulty is low, systematic function can significantly improve.
Another object of the present invention provides a kind of multi-protocols adaptation method that is applicable to this converged communication system.
For realizing the foregoing invention purpose; The present invention adopts following technical scheme: a kind of converged communication system; It comprises protocol process module, Call Control Block and Service Processing Module; It is characterized in that: this converged communication system also comprises a protocol adaptation module, and this protocol adaptation module is between said protocol process module and Call Control Block;
Said protocol adaptation module is accomplished the adaptive of heterogeneous protocol message, is about to become unified message or will convert concrete protocol message from the unified message that said Call Control Block receives to from the message conversion that said protocol process module receives, and redispatches away.
Said protocol adaptation module is made up of a plurality of protocol adaptation submodules;
Said each protocol adaptation submodule is accomplished the adaptive of protocol message separately; After said protocol adaptation module receives protocol message from said protocol process module, be adapted to unified message to concrete protocol message, and send to the Call Control Block on upper strata to unified message; After said protocol adaptation module receives unified message from said Call Control Block, convert concrete protocol message to by the adaptive submodule of corresponding protocol, redispatch to said protocol process module.
A kind of multi-protocols adaptation method that is applicable to this converged communication system, this method is:
A, system receive the diverse network message that the networking sends over;
Protocol process module in B, the system identifies this message according to different type of messages, and sends it to protocol adaptation layers; Protocol adaptation layers is transferred to the adaptive submodule of different protocol according to type of message and is carried out Message Processing;
After C, protocol adaptation submodule receive message, carry out message conversion, internet message is converted to the concrete unified message of system self definition;
D, protocol adaptation submodule will be changed good unified message and send to Call Control Block and carry out concrete calling control;
E, Call Control Block receive call command, return unified message to the protocol adaptation module after treatment;
After F, protocol adaptation layers are received unified message, confirm to transfer to which protocol adaptation submodule according to the value of message header in the unified message and handle;
G, protocol adaptation submodule convert unified message to this submodule corresponding internet message after receiving unified message, and send it to protocol process module;
H, protocol process module will send to communication terminal from the internet message that protocol adaptation layers receives; So far accomplish once basic communication.
The message header of said unified message defines as follows:
| The message header title | Describe |
| ?SourceInfo | Source end facility information |
| ?DestInfo | The destination facility information |
| ?Sourcemsgtype | Source end protocol type, like SIP, H323 etc. |
| ?Destmsgtype | The destination protocol type, like SIP, H323 etc. |
| ?MsgID | Message identifier |
| ?Msgname | Message name |
| ?Msgversion | Version number |
| ?Msglen | Message-length |
Said protocol adaptation module is following with the concrete grammar that the protocol message that receives converts unified message to:
A, the information about the source end in the procotol message is filled among the SourceInfo of unified message;
B, the information about destination in the procotol message is filled among the DestInfo of unified message;
C, message identifier information in the procotol message is filled among the MsgID of unified message;
The protocol type that D, basis receive is inserted the Sourcemsgtype value, and the Destmsgtype value temporarily is empty, and the value of Destmsgtype is inserted according to DestInfo by Call Control Block again, calls out;
E, become the unified message title with message name in the procotol message is corresponding, be filled among the Msgname;
F, calculating message-length are inserted among the Msglen;
G, group bag send to Call Control Block;
H, Call Control Block packet receiving are also handled and are called out, and the value of filling out Destmsgtype according to DestInfo information is simultaneously formed new unified message bag then and sent it to the protocol adaptation module;
I, after the protocol adaptation module receives unified message from the Call Control Block on upper strata; Value according to message header Destmsgtype in the unified message converts them into protocol message that corresponding protocol adaptation submodule is supported; And the conversion after protocol message send to protocol process module, by protocol process module concrete protocol message is sent in the network then.
The present invention proposes the complete protocol fitting method that is applied to converged communication system of a cover, improved the performance of converged communication system effectively, protocol extension property is better.
Description of drawings
Fig. 1 is a converged communication system basic network topology sketch map;
Fig. 2 is a converged communication system structural representation provided by the invention;
Fig. 3 is the multi-protocols adaptation method communication flow diagram that is applicable to this converged communication system provided by the invention;
Fig. 4 is for being the basic flow sheet of signaling between example description protocol processing module and protocol adaptation module, Call Control Block with the Session Initiation Protocol;
Fig. 5 is for being the basic flow sheet of signaling between example description protocol processing module and protocol adaptation module, Call Control Block with the H323 agreement.
Embodiment
As shown in Figure 2, converged communication system provided by the invention mainly is made up of protocol process module, protocol adaptation module, Call Control Block and Service Processing Module.Wherein,
The major function of protocol process module is to accomplish the access of different network protocol, comprises the transmission and the reception of protocol message, the syntax and semantics of different agreement is handled, and the result after will handling sends the protocol adaptation module to.
The protocol adaptation module functions is to accomplish the adaption function of heterogeneous protocol message.This module will become unified message from the message conversion that protocol process module receives or will convert the protocol message of respective modules from the unified message that Call Control Block receives to, redispatch away.
For the ease of the message conversion that receives is become unified message, the present invention has done as giving a definition the message header of unified message:
| The message header title | Describe |
| ?SourceInfo | Source end facility information |
| ?DestInfo | The destination facility information |
| ?Sourcemsgtype | Source end protocol type, like SIP, H323 etc. |
| ?Destmsgtype | The destination protocol type, like SIP, H323 etc. |
| ?MsgID | Message identifier |
| ?Msgname | Message name |
| ?Msgversion | Version number |
| ?Msglen | Message-length |
In addition, the present invention is divided into 4 types with the unified message that the protocol adaptation module converts becomes: call control message, medium control messages, resource management message and user property message.Main message explanation sees the following form.
The major function of Call Control Block is to initiate, reply, handle and observe calling, and in call handling process, activates the applied business on upper strata and return result.
The major function of Service Processing Module is that the CCF that Call Control Block provides is adapted for Service Switching Function, so that the business interface between platform and the external application servers to be provided.
The present invention has increased the protocol adaptation module in traditional converged communication system.This protocol adaptation module is made up of a plurality of protocol adaptation submodules.Each protocol adaptation submodule is mainly accomplished the adaption function of protocol message separately.After the protocol adaptation module receives protocol message from protocol process module, be adapted to unified message to concrete protocol message, and send to the Call Control Block on upper strata to them.
The protocol adaptation module is corresponding one by one with the unified message of protocol message that receives and internal system definition, thereby, the networks of different type protocol message is adapted to unified message.Concrete grammar is following:
A, the information about the source end in the procotol message is filled among the SourceInfo of unified message;
B, the information about destination in the procotol message is filled among the DestInfo of unified message;
C, message identifier information in the procotol message is filled among the MsgID of unified message;
The protocol type that D, basis receive is inserted the Sourcemsgtype value, and the Destmsgtype value temporarily is empty, and the value of Destmsgtype is inserted according to DestInfo by Call Control Block again, calls out;
E, become the unified message title with message name in the procotol message is corresponding, be filled among the Msgname;
F, calculating message-length are inserted among the Msglen;
G, group bag send to Call Control Block;
H, Call Control Block packet receiving are also handled and are called out, and the value of filling out Destmsgtype according to DestInfo information is simultaneously formed new unified message bag then and sent it to the protocol adaptation module.
I, after the protocol adaptation module receives unified message from the Call Control Block on upper strata; Value according to message header in the unified message (Destmsgtype) converts them into protocol message that corresponding protocol adaptation submodule is supported; And the conversion after protocol message send to protocol process module, by protocol process module concrete protocol message is sent in the network then.
For example, what invite message in the Session Initiation Protocol was corresponding is exactly the SETUP message in the unified message, and the adaptive submodule of Session Initiation Protocol is responsible for being filled in the corresponding message header in the SETUP message content in the invite message and the group bag sends to Call Control Block.Concrete corresponding method is:
1, the value in the from territory in the Invite message is filled among the SourceInfo of SETUP message;
2, the value in the to territory in the Invite message is filled among the DestInfo of SETUP message;
3, Call-ID value in the Invite message is filled among the MsgID of SETUP message;
4, insert the Sourcemsgtype value and be " SIP ", the Destmsgtype value is temporarily not empty;
5, insert the Msgname value and be " SETUP ";
6, calculating message-length inserts among the Msglen;
7, the group bag sends to Call Control Block.
Other message by that analogy.
In converged communication system of the present invention, the protocol adaptation module has shielded the difference of bottom heterogeneous network, thereby makes Call Control Block simpler, efficient.When converged communication platform need be supported new agreement; The adaptation module that only needs in protocol process module, to increase this agreement gets final product; The realization of really having accomplished concrete application does not rely on agreement; Protocol extension property is good, thereby whole converged communication system design difficulty is reduced greatly, and systematic function significantly promotes.
Fig. 3 the present invention is applicable to the multi-protocols adaptation method communication flow diagram of this converged communication system.As shown in the figure, the multi-protocols adaptation method of this converged communication system that is applicable to provided by the invention is:
A, system receive the diverse network message that the networking sends over, like SIP/H323 etc.;
Protocol process module in B, the system identifies this message according to different type of messages, and sends it to protocol adaptation layers; Protocol adaptation layers is transferred to the adaptive submodule of different protocol according to type of message and is carried out Message Processing, transfers to the adaptive submodule of Session Initiation Protocol like sip message and handles;
After C, protocol adaptation submodule receive message, carry out message conversion, internet message is converted to the concrete unified message of system self definition;
D, protocol adaptation submodule will be changed good unified message and send to Call Control Block and carry out concrete calling control;
E, Call Control Block receive call command, return unified message to the protocol adaptation module after treatment;
After F, protocol adaptation layers are received unified message, confirm to transfer to which protocol adaptation submodule according to the value of message header in the unified message (Destmsgtype) and handle, as, if the Destmsgtype that receives is SIP, then this message is transferred to the adaptive submodule of SIP and handle;
G, protocol adaptation submodule receive after the unified message and convert unified message to this submodule corresponding internet message, and send it to protocol process module, converts unified message to sip message after receiving unified message like the adaptive submodule of Session Initiation Protocol;
H, protocol process module will send to communication terminal from the internet message that protocol adaptation layers receives.So far accomplish once basic communication.
Be example below with the Session Initiation Protocol, the basic flow sheet of signaling between description protocol processing module and protocol adaptation module, Call Control Block, as shown in Figure 4:
(1) after the Session Initiation Protocol processing module in the converged communication system receives sip message, is transferred to the protocol adaptation module;
(2) the protocol adaptation module receives the INVITE bag that the Session Initiation Protocol processing module sends;
(3) because INVITE provides complete called address, therefore after this INVITE had been mapped to SETUP message, Call Control Block directly sent CreateMedia and requires to set up the medium connection; At this moment, owing to do not comprise media information in the SETUP message, the SIP module sends the SDP in the INVITE to Call Control Block with MediaInfo message;
(4) Call Control Block sends CALL PROC message and PROGress message to the protocol adaptation module successively; The protocol adaptation module is sent 100Trying message and 180Ringing message to the Session Initiation Protocol processing module respectively after receiving these two message, and the expression calling is being carried out and be called just in ring;
(5) behind the called off-hook, Call Control Block sends CONNect message to the protocol adaptation module, to set up bi-directional call;
After the protocol adaptation module receives the SDP of Call Control Block through the ModifyMedia transmission, just can send 200OK to the Session Initiation Protocol processing module;
(6) work as Called Onhook, the protocol adaptation module is received DISConnect message from Call Control Block, and then the protocol adaptation module is directly sent BYE message to the Session Initiation Protocol processing module, replys RELease message to Call Control Block simultaneously.
Be example with the H323 agreement below, the basic flow sheet of signaling between description protocol processing module and protocol adaptation module, Call Control Block, as shown in Figure 5:
(1) after the H323 protocol process module in the converged communication system receives H323 message, is transferred to the protocol adaptation module;
(2) the protocol adaptation module receives the Setup bag that the H323 protocol process module sends, and makes a call;
(3) because Setup message provides complete called address, therefore after this message had been mapped to unified message SETUP, Call Control Block directly sent CreateMedia and requires to set up the medium connection; At this moment, owing to do not comprise media information in the SETUP message, the H323 protocol process module sends the related media information in the Setup message to Call Control Block with MediaInfo message;
(4) Call Control Block sends CALL PROC message and PROGress message to the protocol adaptation module successively; The protocol adaptation module is sent Alerting message to the H323 protocol process module after receiving these two message, and the expression calling is being carried out and be called just in ring;
(5) behind the called off-hook, Call Control Block sends CONNect message to the protocol adaptation module, to set up bi-directional call;
After the protocol adaptation module receives ModifyMedia message, just can send Connect ACK to the H323 protocol process module.
(6) after caller was hung up the telephone, the H323 protocol process module sent Disconnect message and Release message to the protocol adaptation module; After the protocol adaptation module receives above-mentioned two kinds of message; At first send StopMedia and require to finish Media Stream to Call Control Block; Send RELease to Call Control Block then and hang up operation; After the protocol adaptation module receives the RELease Com message that Call Control Block returns, just send ReleaseComp and confirm to hang up to the H323 protocol module.
For preferred embodiment of the present invention and design graphicly, be not to be used to limit interest field of the present invention more than.Anyly do not break away from spirit of the present invention and category, and, all should be contained in accompanying the application's claim its equivalent modifications of carrying out or change.
Claims (5)
1. converged communication system; It comprises protocol process module, Call Control Block and Service Processing Module; It is characterized in that: this converged communication system also comprises a protocol adaptation module, and this protocol adaptation module is between said protocol process module and Call Control Block;
Said protocol adaptation module is accomplished the adaptive of heterogeneous protocol message, is about to become unified message or will convert concrete protocol message from the unified message that said Call Control Block receives to from the message conversion that said protocol process module receives, and redispatches away.
2. converged communication system according to claim 1 is characterized in that: said protocol adaptation module is made up of a plurality of protocol adaptation submodules;
Said each protocol adaptation submodule is accomplished the adaptive of protocol message separately; After said protocol adaptation module receives protocol message from said protocol process module, be adapted to unified message to concrete protocol message, and send to the Call Control Block on upper strata to unified message; After said protocol adaptation module receives unified message from said Call Control Block, convert concrete protocol message to by the adaptive submodule of corresponding protocol, redispatch to said protocol process module.
3. multi-protocols adaptation method that is applicable to the converged communication system of claim 1, it is characterized in that: this method is:
A, system receive the diverse network message that the networking sends over;
Protocol process module in B, the system identifies this message according to different type of messages, and sends it to protocol adaptation layers; Protocol adaptation layers is transferred to the adaptive submodule of different protocol according to type of message and is carried out Message Processing;
After C, protocol adaptation submodule receive message, carry out message conversion, internet message is converted to the concrete unified message of system self definition;
D, protocol adaptation submodule will be changed good unified message and send to Call Control Block and carry out concrete calling control;
E, Call Control Block receive call command, return unified message to the protocol adaptation module after treatment;
After F, protocol adaptation layers are received unified message, confirm to transfer to which protocol adaptation submodule according to the value of message header in the unified message and handle;
G, protocol adaptation submodule convert unified message to this submodule corresponding internet message after receiving unified message, and send it to protocol process module;
H, protocol process module will send to communication terminal from the internet message that protocol adaptation layers receives; So far accomplish once basic communication.
4. the multi-protocols adaptation method that is applicable to this converged communication system according to claim 3 is characterized in that: the message header of said unified message defines as follows:
5. the multi-protocols adaptation method that is applicable to this converged communication system according to claim 4 is characterized in that: said protocol adaptation module is following with the concrete grammar that the protocol message that receives converts unified message to:
A, the information about the source end in the procotol message is filled among the SourceInfo of unified message;
B, the information about destination in the procotol message is filled among the DestInfo of unified message;
C, message identifier information in the procotol message is filled among the MsgID of unified message;
The protocol type that D, basis receive is inserted the Sourcemsgtype value, and the Destmsgtype value temporarily is empty, and the value of Destmsgtype is inserted according to DestInfo by Call Control Block again, calls out;
E, become the unified message title with message name in the procotol message is corresponding, be filled among the Msgname;
F, calculating message-length are inserted among the Msglen;
G, group bag send to Call Control Block;
H, Call Control Block packet receiving are also handled and are called out, and the value of filling out Destmsgtype according to DestInfo information is simultaneously formed new unified message bag then and sent it to the protocol adaptation module;
I, after the protocol adaptation module receives unified message from the Call Control Block on upper strata; Value according to message header Destmsgtype in the unified message converts them into protocol message that corresponding protocol adaptation submodule is supported; And the conversion after protocol message send to protocol process module, by protocol process module concrete protocol message is sent in the network then.
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Application publication date: 20120711 |