CN101534571B - Method and system achieving the IWF service communication among the networks - Google Patents
Method and system achieving the IWF service communication among the networks Download PDFInfo
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- CN101534571B CN101534571B CN2009101065252A CN200910106525A CN101534571B CN 101534571 B CN101534571 B CN 101534571B CN 2009101065252 A CN2009101065252 A CN 2009101065252A CN 200910106525 A CN200910106525 A CN 200910106525A CN 101534571 B CN101534571 B CN 101534571B
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- H04W92/02—Inter-networking arrangements
Abstract
The invention discloses a method and a system achieving the IWF service communication among the networks. The method of the invention comprises initiating the network communicating request among different networks and the H.248g signaling processing unit via the media gateway, distributing and delivering the IWF service parameter to the wireless side protocol stack processing unit and the IWF service protocol processing unit; the different network terminals are respectively building the RLP chains and noticing the IWF service protocol processing unit, completing the building of the communicating chains. The invention builds the communicating chains among the different IWF service protocol processing units, achieving the purpose of the IWF service communication among the networks.
Description
Technical field
The present invention relates to communication field, relate in particular to the method and system that a kind of field of mobile communication realizes IWF business intercommunication between the network.
Background technology
Mobile communications network is realized and PSTN (Public Switched Telephone Network) the similar traditional circuit type data service of network by network interworking function IWF (Inter working Function) equipment.IWF be one between mobile communications network and PSTN network, the equipment of IWF is provided, it utilizes the MODEM on travelling carriage MT (Mobile Termination) and the IWF to come together to provide and wired MODEM identical functions for the user, to realize circuit data service, such as asynchronous data traffic, the radio facsimile business.
See also Fig. 1, it is a kind of interconnect services model schematic diagram that CDMA2000 terminal and GSM terminal are carried out the IWF business.
The functional unit of the IWF business of CDMA2000 comprises CDMA2000 terminal, base station transceiver BTS/ base station controller BSC radio reception device, mobile switching center emulation MSCE, media gateway.At first the CDMA2000 terminal is initiated the IWF service request, by the BTS/BSC radio reception device demand signalling is issued MSCE.MSCE sends media gateway to by the XX39 interface.Media gateway is assigned bearer circuit and IWF functional resources according to this request instruction.Then, the IWF functional unit of CDMA2000 terminal and media gateway is consulted with interior medium face, sets up the bearing protocol stack, realizes the IWF business function.
Similarly, the realization of the IWF business function of GSM is the same with the realization of the function of the IWF business of CDMA2000.
See also Fig. 2 and Fig. 3, wherein.Fig. 2 is the medium face protocol stack structure that IWF defines in the CDMA2000 network, and Fig. 3 is the medium face protocol stack structure that IWF defines in the GSM network.
Comparison diagram 2 and medium face protocol stack structure shown in Figure 3 can significantly draw: the medium face message format of IWF is inconsistent.
It is different that the medium face of CDMA2000 terminal and GSM terminal is consulted the protocol stack of foundation, makes that two kinds of network type IWF business can not intercommunication.
Summary of the invention
For solving the problem that different network type IWF business can not intercommunication, be necessary to provide a kind of method that realizes IWF business intercommunication between the network.
In addition, also be necessary to provide a kind of system that realizes IWF business intercommunication between the network.
The present invention realizes that the method for IWF business intercommunication between the network may further comprise the steps:
Initiate network interworking function IWF service request between the different network terminals and by the H.248g Signaling Processing Unit on the media gateway separately, distribute and transmit the IWF service parameter to separately wireless side protocol stack processing unit and IWF service protocol processing unit;
Described different network terminals is set up RLP link and notice IWF service protocol processing unit separately respectively, finishes the foundation of intercommunication link between the network.
In said method, initiate network interworking function IWF service request between the described different network terminals and refer to:
Connect by the sip agreement between the soft switch center of described heterogeneous networks;
Described terminal sends the soft switch center of IWF service request to described heterogeneous networks by the soft switch center of place network, is transferred to described different network terminals again.
In said method, described IWF service protocol processing unit comprises: standard 3.1k audio frequency modem agreement modulation treatment unit, standard 3.1k audio frequency modem agreement are modulated T.30 fax the 64Kbps UDI Service Processing Unit of processing unit, ISDN business, the 56Kbps RDI Service Processing Unit of ISDN business.
In said method, described different network terminals comprises: the GSM network terminal, the CDMA2000 network terminal.
In said method, the process that the described GSM network terminal is set up the RLP link of GSM is:
The described GSM network terminal is initiated the negotiation of link layer RLP agreement, and request gsm wireless side protocol stack processing unit is set up the RLP link;
Described gsm wireless side protocol stack processing unit is to the information of described GSM network terminal feedback RLP link negotiation success;
The process that the described CDMA2000 network terminal is set up the RLP link of CDMA2000 is:
Described CDMA2000 wireless side protocol stack processing unit is initiated the negotiation of link layer TCP/IP-PPP/RLP agreement, asks the described CDMA2000 network terminal to set up the TCP/IP-PPP/RLP link;
The described CDMA2000 network terminal is set up the information of TCP/IP-PPP/RLP link negotiation success to described CDMA2000 wireless side protocol stack processing unit feedback.
In said method, the described GSM network terminal and the CDMA2000 network terminal also comprise after setting up separately RLP link respectively:
The IWF service protocol processing unit of described GSM network sends the RLP link establishment successful information of GSM to the IWF of CDMA2000 network service protocol processing unit, and initiates the link negotiation request;
The IWF service protocol processing unit of described CDMA2000 network receives the RLP link establishment successful information of described GSM, notifies the wireless side protocol stack processing unit of described CDMA2000 network;
The IWF service protocol processing unit of described CDMA2000 network is replied described link negotiation request, and the RLP link establishment successful information of feedback CDMA2000;
The IWF service protocol processing unit of described GSM network receives the RLP link establishment successful information of described CDMA2000, reinforms the wireless side protocol stack processing unit of described GSM network, finishes the foundation of intercommunication link between the network.
The present invention also provides a kind of system that realizes IWF business intercommunication between the network, it comprises the media gateway of different network terminals and heterogeneous networks, wherein, the media gateway of described heterogeneous networks comprises H.248g Signaling Processing Unit, wireless side protocol stack processing unit, IWF service protocol processing unit respectively:
The media gateway of described heterogeneous networks is used for the H.248g Signaling Processing Unit by separately, distributes and transmits described IWF service parameter to separately wireless side protocol stack processing unit and IWF service protocol processing unit; And after described different network terminals was set up the RLP link respectively, notice IWF service protocol processing unit was finished the foundation of intercommunication link between the network.
In said system, described different network terminals comprises: the GSM network terminal, the CDMA2000 network terminal.
In said system, the IWF service protocol processing unit of described GSM network is used for sending the RLP link establishment successful information of GSM and initiating the link negotiation request to the IWF of CDMA2000 network service protocol processing unit; And the RLP link establishment successful information that receives described CDMA2000, notify the wireless side protocol stack processing unit of described GSM network; The IWF service protocol processing unit of described CDMA2000 network is used to receive the RLP link establishment successful information of described GSM, notifies the wireless side protocol stack processing unit of described CDMA2000 network; Reply described link negotiation request, and the RLP link establishment successful information of feedback CDMA2000.
In said system, described IWF service protocol processing unit comprises: standard 3.1k audio frequency modem agreement modulation treatment unit, standard 3.1k audio frequency modem agreement are modulated T.30 fax the 64Kbps UDI Service Processing Unit of processing unit, ISDN business, the 56Kbps RDI Service Processing Unit of ISDN business.
Compared with prior art, the present invention sets up the link of intercommunication between the IWF of different network terminals service protocol processing unit, realizes the purpose of IWF business intercommunication between the network.
After the detailed description of reading embodiment of the present invention in conjunction with the accompanying drawings, it is clearer that characteristics of the present invention and advantage will become.
Description of drawings
Fig. 1 is a kind of interconnect services model schematic diagram that CDMA2000 terminal and GSM terminal are carried out the IWF business;
Fig. 2 is the medium face protocol stack structure that IWF defines in the CDMA2000 network;
Fig. 3 is the medium face protocol stack structure that IWF defines in the GSM network;
Fig. 4 is the method flow schematic diagram that the present invention realizes IWF business intercommunication between the network;
Fig. 5 is the asynchronous nontransparent interconnected cooperating process schematic diagram of GSM terminal request CDMA2000 terminal 3.1k audio frequency of the present invention;
Fig. 6 is the system module schematic diagram that the present invention realizes IWF business intercommunication between the network.
Embodiment
Below in conjunction with accompanying drawing the present invention is realized that the method and system of IWF business intercommunication between the network describes, and only for example, can also be other network: for example WCDMA network and CDMA2000 network at GSM network and CDMA2000 network.
See also Fig. 4, it is the method flow schematic diagram that the present invention realizes IWF business intercommunication between the network.
Step S1, finish the negotiation of chain of command between GSM terminal and the CDMA2000 terminal.Be that the GSM terminal is consensus by the MSCE of MSCserver and CDMA2000 terminal, notice CDMA2000 terminal is initiated the IWF service request, GSM terminal and CDMA2000 terminal are passed through H.248g Signaling Processing Unit separately, distribution and transmission IWF service parameter arrive IWF wireless side protocol stack processing unit separately, and reallocation and transmission IWF service parameter arrive IWF service protocol processing unit separately;
Step S2, set up interoperation relationships between GSM terminal and the CDMA2000 terminal.Promptly between the IWF service protocol processing unit of the IWF of GSM terminal service protocol processing unit and CDMA2000 terminal, set up the link of intercommunication.
See also Fig. 5, it is the asynchronous nontransparent interconnected cooperating process schematic diagram of GSM terminal request CDMA2000 terminal 3.1k audio frequency of the present invention.
Step S1, finish the negotiation of chain of command between GSM terminal and the CDMA2000 terminal.Described step S1 comprises:
Step S401, GSM terminal use SetUp message the IWF service request to be sent to the media gateway of GSM terminal by MSCserver;
Connect by the sip agreement between the MSCE of the MSCserver of step S402, GSM terminal and CDMA2000 terminal, the MSCserver of GSM terminal sends to the IWF service request MSCE of CDMA2000 terminal;
The MSCE of step S403, CDMA2000 terminal sends to the IWF service request media gateway of CDMA2000 terminal and CDMA2000 terminal.
H.248g the Signaling Processing Unit of the media gateway of step S404, GSM terminal receives the IWF service request, resolves to obtain the IWF service parameter, and reallocation gsm wireless side protocol stack processing unit, and the IWF service parameter sent to gsm wireless side protocol stack processing unit;
H.248g the Signaling Processing Unit of the media gateway of step S405, CDMA2000 terminal receives the IWF service request, parsing obtains the IWF service parameter, reallocation CDMA2000 wireless side protocol stack processing unit, and the IWF service parameter sent to CDMA2000 wireless side protocol stack processing unit;
H.248g the Signaling Processing Unit of the media gateway of step S406, GSM terminal distributes GSM standard 3.1k audio frequency modem agreement modulation treatment unit, and the IWF service parameter is sent to GSM standard 3.1k audio frequency modem agreement modulation treatment unit;
H.248g the Signaling Processing Unit of the media gateway of step S407, CDMA2000 terminal, distribute CDMA2000 standard 3.1k audio frequency modem agreement modulation treatment unit, and the IWF service parameter is sent to CDMA2000 standard 3.1k audio frequency modem agreement modulation treatment unit.
Step S2, set up interoperation relationships between GSM terminal and the CDMA2000 terminal.Described step S2 comprises:
Step S410, GSM terminal are initiated the negotiation of link layer RLP agreement, and request gsm wireless side protocol stack processing unit is set up the RLP link;
Step S411, CDMA2000 wireless side protocol stack processing unit are initiated the negotiation of link layer TCP/IP-PPP/RLP agreement, and request CDMA2000 terminal is set up the TCP/IP-PPP/RLP link;
Step S412, gsm wireless side protocol stack processing unit feed back the information of RLP link negotiation success to the GSM terminal;
Step S413, CDMA2000 terminal are set up the information of TCP/IP-PPP/RLP link negotiation success to CDMA2000 wireless side protocol stack processing unit feedback, and AT orders AT+CFG=" " ATA in CDMA2000 wireless side protocol stack processing unit sends band;
Step S414, gsm wireless side protocol stack processing unit notice GSM standard 3.1k audio frequency modem agreement modulation treatment unit R LP link establishment success;
Step S415, GSM standard 3.1k audio frequency modem agreement modulation treatment unit send link to the standard 3.1k of CDMA2000 audio frequency modem agreement modulation treatment unit and successfully confirm CONNECT, i.e. link establishment successful information, and initiate the link negotiation request;
Step S416, CDMA2000 wireless side protocol stack processing unit are with interior parsing with AT order the AT+CFG=" " ATA of CDMA2000 terminal, and part A TA sends CDMA2000 standard 3.1k audio frequency modem agreement modulation treatment unit to;
The link negotiation request of GSM standard 3.1k audio frequency modem agreement modulation treatment unit is replied in step S417, CDMA2000 standard 3.1k audio frequency modem agreement modulation treatment unit, sends link and successfully confirms CONNECT;
Step S418, receive that GSM standard 3.1k audio frequency modem agreement modulation treatment unit link successfully confirms CONNECT, CDMA2000 standard 3.1k audio frequency modem agreement modulation treatment unit notice CDMA2000 wireless side protocol stack processing unit;
Step S419, GSM standard 3.1k audio frequency modem agreement modulation treatment unit receive that link successfully confirms notice gsm wireless side protocol stack processing unit behind the CONNECT;
Step S420, GSM terminal portable terminal and CDMA2000 terminal use face are consulted to finish, and two terminal intercommunications are end to end finished in end-to-end link establishment, realize IWF business intercommunication between the network.
If any one stage of above negotiations process is consulted failure, the perhaps overtime response that can not receive corresponding end all can be hung up GSM terminal and CDMA2000 terminal by MSCe and MSCserver.
See also Fig. 6, it is the system module schematic diagram that the present invention realizes IWF business intercommunication between the network.
The present invention realizes that the system of IWF business intercommunication between the network comprises the media gateway of media gateway, CDMA2000 terminal and the CDMA2000 terminal of GSM terminal, GSM terminal.
Wherein, the media gateway of GSM terminal comprises T.30 the fax 56Kbps RDI Service Processing Unit of ISDN business of 64Kbps UDI Service Processing Unit, GSM of ISDN business of processing unit, GSM of Signaling Processing Unit H.248g, gsm wireless side protocol stack processing unit, GSM standard 3.1k audio frequency modem agreement modulation treatment unit, the modulation of GSM standard 3.1k audio frequency modem agreement.
IWF service protocol processing unit comprises: T.30 the fax 56Kbps RDI Service Processing Unit of ISDN business of 64Kbps UDI Service Processing Unit, GSM of ISDN business of processing unit, GSM of GSM standard 3.1k audio frequency modem agreement modulation treatment unit, GSM standard 3.1k audio frequency modem agreement modulation.
The media gateway of CDMA2000 terminal comprises that H.248g Signaling Processing Unit, CDMA2000 wireless side protocol stack processing unit, standard 3.1k audio frequency modem agreement modulation treatment unit, standard 3.1k audio frequency modem agreement are modulated the processing unit of T.30 faxing.IWF business to CDMA2000 is expanded:
SO＝4110(0x0007)：asynchronous?data?64Kbps?UDI?service
SO＝4120(0x0008)：asynchronous?data?56Kbps?RDI?service。
Make the media gateway of CDMA2000 terminal further comprise the 56Kbps RDI Service Processing Unit of ISDN business of 64Kbps UDI Service Processing Unit, the CDMA2000 of the ISDN business of CDMA2000.
IWF service protocol processing unit comprises: T.30 the fax 56Kbps RDI Service Processing Unit of ISDN business of 64Kbps UDI Service Processing Unit, CDMA2000 of ISDN business of processing unit, CDMA2000 of standard 3.1k audio frequency modem agreement modulation treatment unit, standard 3.1k audio frequency modem agreement modulation.
The GSM terminal is used to notify the CDMA2000 terminal to initiate the IWF service request and sends the IWF service request to the media gateway of GSM terminal.Be to connect by the sip agreement between the MSCE of the MSCserver of GSM terminal and CDMA2000 terminal; The GSM terminal sends the MSCE of IWF service request to the CDMA2000 terminal by MSCserver, is transferred to the CDMA2000 terminal again.In addition, the GSM terminal also is used to finish the foundation of RLP link.
The CDMA2000 terminal is used to receive the notice of GSM terminal, and finishes the foundation of RLP link.
The media gateway of GSM terminal receives and resolves from GSM terminal IWF service request, obtain the IWF service parameter, and by Signaling Processing Unit H.248g, distribute gsm wireless side protocol stack processing unit, and the IWF service parameter sent to gsm wireless side protocol stack processing unit, reallocation GSM standard 3.1k audio frequency modem agreement modulation treatment unit, and the IWF service parameter sent to GSM standard 3.1k audio frequency modem agreement modulation treatment unit.
Similarly, CDMA2000 terminal media gateway is also finished distribution and is transmitted the IWF service protocol processing unit of IWF service parameter to the CDMA2000 terminal.
After the RLP of GSM terminal link establishment success, the IWF service protocol processing unit of notice GSM terminal.After the RLP of CDMA2000 terminal link establishment success, the IWF service protocol processing unit of notice CDMA2000 terminal.The IWF service protocol processing unit of the IWF service protocol processing unit of GSM terminal and CDMA2000 terminal exchanges link mutually and is created as merit information, notify wireless side protocol stack processing unit separately more respectively, thereby GSM terminal and CDMA2000 terminal use face are consulted to finish, end-to-end link establishment, finish two terminal intercommunications end to end, realize the purpose of IWF business intercommunication between the network.
Compared with prior art, the present invention realizes that the method and system of IWF business intercommunication between the network is earlier by GSM terminal notice CDMA2000 terminal initiation IWF service request, finish by H.248g Signaling Processing Unit separately again and distribute and transmit the IWF service parameter to separately IWF wireless side protocol stack processing unit, the operation that distribution and transmission IWF service parameter arrive IWF service protocol processing unit separately, then, the IWF service protocol processing unit of the IWF service protocol processing unit of GSM terminal and CDMA2000 terminal exchanges RLP link establishment successful information mutually, set up the link of intercommunication, realize the purpose of IWF business intercommunication between the network.
Only be preferred case study on implementation of the present invention below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a method that realizes IWF business intercommunication between the network is characterized in that, may further comprise the steps:
Connect by the sip agreement between the soft switch center of heterogeneous networks;
Different network terminals sends the soft switch center of IWF service request to described heterogeneous networks by the soft switch center of place network, is transferred to described different network terminals again;
Initiate network interworking function IWF service request between the described different network terminals and by the H.248g Signaling Processing Unit on the media gateway separately, distribute and transmit the IWF service parameter to separately wireless side protocol stack processing unit and IWF service protocol processing unit;
Described different network terminals is set up RLP link and notice IWF service protocol processing unit separately respectively, finishes the foundation of intercommunication link between the network.
2. method according to claim 1, it is characterized in that described IWF service protocol processing unit comprises: standard 3.1k audio frequency modem agreement modulation treatment unit, standard 3.1k audio frequency modem agreement are modulated T.30 fax the 64Kbps UDI Service Processing Unit of processing unit, ISDN business, the 56Kbps RDI Service Processing Unit of ISDN business.
3. method according to claim 1 is characterized in that, described different network terminals comprises: the GSM network terminal, the CDMA2000 network terminal.
4. method according to claim 3 is characterized in that, the process that the described GSM network terminal is set up the RLP link of GSM is:
The described GSM network terminal is initiated the negotiation of link layer RLP agreement, and request gsm wireless side protocol stack processing unit is set up the RLP link;
Described gsm wireless side protocol stack processing unit is to the information of described GSM network terminal feedback RLP link negotiation success;
The process that the described CDMA2000 network terminal is set up the RLP link of CDMA2000 is:
Described CDMA2000 wireless side protocol stack processing unit is initiated the negotiation of link layer TCP/IP-PPP/RLP agreement, asks the described CDMA2000 network terminal to set up the TCP/IP-PPP/RLP link;
The described CDMA2000 network terminal is set up the information of TCP/IP-PPP/RLP link negotiation success to described CDMA2000 wireless side protocol stack processing unit feedback.
5. method according to claim 4 is characterized in that, the described GSM network terminal and the CDMA2000 network terminal also comprise after setting up separately RLP link respectively:
The IWF service protocol processing unit of described GSM network sends the RLP link establishment successful information of GSM to the IWF of CDMA2000 network service protocol processing unit, and initiates the link negotiation request;
The IWF service protocol processing unit of described CDMA2000 network receives the RLP link establishment successful information of described GSM, notifies the wireless side protocol stack processing unit of described CDMA2000 network;
The IWF service protocol processing unit of described CDMA2000 network is replied described link negotiation request, and the RLP link establishment successful information of feedback CDMA2000;
The IWF service protocol processing unit of described GSM network receives the RLP link establishment successful information of described CDMA2000, reinforms the wireless side protocol stack processing unit of described GSM network, finishes the foundation of intercommunication link between the network.
6. system that realizes IWF business intercommunication between the network, it comprises the media gateway of different network terminals and heterogeneous networks, wherein, the media gateway of described heterogeneous networks comprises H.248g Signaling Processing Unit, wireless side protocol stack processing unit, IWF service protocol processing unit respectively, it is characterized in that:
Connect by the sip agreement between the soft switch center of heterogeneous networks;
Different network terminals sends the soft switch center of IWF service request to described heterogeneous networks by the soft switch center of place network, is transferred to described different network terminals again; The media gateway of described heterogeneous networks is used for the H.248g Signaling Processing Unit by separately, distributes and transmits described IWF service parameter to separately wireless side protocol stack processing unit and IWF service protocol processing unit; And after described different network terminals was set up the RLP link respectively, notice IWF service protocol processing unit was finished the foundation of intercommunication link between the network.
7. system according to claim 6 is characterized in that, described different network terminals comprises: the GSM network terminal, the CDMA2000 network terminal.
8. system according to claim 7 is characterized in that,
The IWF service protocol processing unit of described GSM network is used for sending the RLP link establishment successful information of GSM and initiating the link negotiation request to the IWF of CDMA2000 network service protocol processing unit; And the RLP link establishment successful information that receives described CDMA2000, notify the wireless side protocol stack processing unit of described GSM network;
The IWF service protocol processing unit of described CDMA2000 network is used to receive the RLP link establishment successful information of described GSM, notifies the wireless side protocol stack processing unit of described CDMA2000 network; Reply described link negotiation request, and the RLP link establishment successful information of feedback CDMA2000.
9. system according to claim 6 is characterized in that,
Described IWF service protocol processing unit comprises: standard 3.1k audio frequency modem agreement modulation treatment unit, standard 3.1k audio frequency modem agreement are modulated T.30 fax the 64Kbps UDI Service Processing Unit of processing unit, ISDN business, the 56Kbps RDI Service Processing Unit of ISDN business.
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| CN2009101065252A CN101534571B (en) | 2009-04-07 | 2009-04-07 | Method and system achieving the IWF service communication among the networks |
| PCT/CN2009/073508 WO2010115328A1 (en) | 2009-04-07 | 2009-08-25 | Method and system for achieving interworking function service intercommunication between networks |
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| CN106161590A (en) * | 2016-06-15 | 2016-11-23 | 北京数码视讯科技股份有限公司 | Communication means between a kind of different agreement terminal and device |
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| US8630414B2 (en) * | 2002-06-20 | 2014-01-14 | Qualcomm Incorporated | Inter-working function for a communication system |
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