CN1499803A - Method of transmissive transmission of signaling - Google Patents
Method of transmissive transmission of signaling Download PDFInfo
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- CN1499803A CN1499803A CNA02148905XA CN02148905A CN1499803A CN 1499803 A CN1499803 A CN 1499803A CN A02148905X A CNA02148905X A CN A02148905XA CN 02148905 A CN02148905 A CN 02148905A CN 1499803 A CN1499803 A CN 1499803A
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Abstract
The method suitable to transmission of ISUP signaling according to standard H.323 protocol includes following steps: (1) After a sending end receives ISUP signaling transferred from launching device, all of ISUP signaling is filled into data fields of non-standard data fields in H.323 protocol in sequence. id information of manufacturer is filled into field of device information of non-standard data fields. The filled message is packed, and sent to receiving end through H.323 protocol. (2) With H.323 message being received, the receiving end picks up id information of manufacturer from unpacked H.323 message. Whether id information of manufacturer is consistent with own information is determined. If yes, ISUP signaling to be transmitted is picked up from data field of non-standard data fields in H.323 protocol, and the ISUP signaling is sent to target device; otherwise, exiting the flow. The invention carries and transmits ISUP signaling in H.323 protocol.
Description
Technical field
The present invention relates to the H.323 transparent transmission technology of agreement, be meant especially and a kind ofly ISUP (ISUP, ISDN User Part) signaling carried out the method for transparent transmission by protocol message H.323.
Background technology
At present, the mode that the ISUP signaling is carried on packet network is mainly finished by SIGTRAN, what but SIGTRAN was realized is the complete signaling forward pass of relaying form, generally needs independent SGW (SG, Signal Gateway) equipment to transmit signaling.
For already present some original networking mode, do not build independent SG equipment, so SIGTRAN do not have applicability to the H.323 ip voice gateway (VoIP GW) in this network.Under this original networking mode, when H.323 VoIP GW moved on the net, H.323 agreement and ISUP signaling there is no concrete one-to-one relationship on signaling message kind and message particular content.
The ISUP signaling that has with in the protocol suite H.323 H.225.0/Q.931+ message do not have one-to-one relationship, even the ISUP signaling message that has with in the protocol suite H.323 H.225.0 the Q.931 signaling quoted of agreement have certain corresponding relation also can't carry all source end isup message contents.For example: the initial address message (IAM in the ISUP signaling, Initial Address Message) the SETUP message correspondence in the same H.323/Q.931 signaling, address perfect information (ACM in the ISUP signaling, Address CompleteMessage) the ALERTING message correspondence in the same H.323/Q.931 signaling, subsequent address message (SAM in the ISUP signaling, Sequence Address Message) the INFORMATION message in the corresponding H.323/Q.931 signaling, CONNECT message in the corresponding H.323/Q.931 signaling of response message in the ISUP signaling (ANM, Answer Message) etc.For the basic I SUP signaling message in these callings, H.323 can find peer message in order to transmit some basic messae contents in the agreement, but because H.225.0/Q.931 the call control protocol that comprises in the cell that carries and the protocol suite H.323 in the ISUP signaling message there is no one-to-one relationship between the defined cell content, thus according to original standard H.323 agreement can not carry all source end isup message contents by the message that packet network is delivered to the opposite end.
Because H.323 VoIP GW does not have the H.323 protocol message of standard or message field to carry transmission to the ISUP signaling, therefore under the networking mode that does not have independent signaling network, that is: walk under the networking mode of same channel in speech channel and signaling, the ISUP signaling can't be carried on Packet Based Network by VoIP GW H.323.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of transmitting method of signaling, makes H.323 agreement carry transmission to the ISUP signaling.
Realize the present invention, need following steps:
After a, transmitting terminal are received the ISUP signaling that initiating equipment transmission comes, with this ISUP signaling all order be filled in the data field of the non-standard data field of protocol message H.323;
B, identification of the manufacturer information is filled in the facility information territory of the described non-standard data field of step a, then populated message is encapsulated and send to receiving terminal by agreement H.323;
H.323 c, receiving terminal receive first decapsulation after the message, extract identification of the manufacturer information the H.323 protocol message after decapsulation, judge whether this identification of the manufacturer information is consistent with the information of self, if, then enter steps d, otherwise, current flow process finished;
D, from the data field of the non-standard data field of protocol message H.323, extract the ISUP signaling that to transmit, and this ISUP signaling is sent to destination device.
By said method as can be seen; the present invention carries out User Defined carries transmission to the ISUP signaling method by the reserved field of protocol message H.323; realized the transparent transmission of ISUP signaling; make under the networking mode of no independent signaling network; the ISUP signaling also can be carried on packet network by GW H.323; therefore can protect the investment of conventional network equipment, needn't upgrade network construction form and acquire equipment.By transparent transmission, the ISUP signaling between original narrow band switching machine also can be carried by GW H.323 on packet network to the ISUP signaling.The transparent transmission of signaling also makes the signaling tracing under the legacy network networking mode of no independent signaling network safeguard to become possibility.
Description of drawings
The flow chart that Fig. 1 realizes for the inventive method.
Fig. 2 is the schematic diagram of the ISUP signaling transparent transmission of the embodiment of the invention.
Embodiment
Present embodiment mainly be by the utilization of VoIP GW H.323 standard H.323 the non-standard data segment nonStandardData in protocol message kind and the message field carry out self-definedly, encapsulate and carry the ISUP signaling message.H.323 the protocol suite call control protocol H.225.0/Q.931 the message definition of agreement ASN.1 regulation comprise that nonstandard numbers is according to (nonStandardData) unified field:
H323-UU-PDU∷＝SEQUENCE{ H323-message-body CHOICE { setup Setup-UUIE， callProceeding CallProceeding-UUIE， connect Connect-UUIE， alerting Alerting-UUIE， userInformation UI-UUIE， releaseComplete ReleaseComplete-UUIE， facility Facility-UUIE， ...， progress Progress-UUIE， empty NULL }， nonStandardData NonStandardParameter OPTIONAL， ...， h4501SupplementaryService SEQUENCE OF OCTET STRING OPTIONAL h245Tunneling BOOLEAN， h245Control SEQUENCE OF OCTET STRING OPTIONAL， nonStandardControl SEQUENCE OF NonStandardParameter OPTIONAL}
Wherein, non-standard parameter (NonStandardParameter) is defined as follows:
NonStandardParameter∷＝SEQUENCE{ nonStandardIdentifierNonStandardIdentifier， data OCTET STRING}NonStandardIdentifier ∷＝CHOICE{ object OBJECT IDENTIFIER， h221NonStandard H221NonStandard， ...，}H221NonStandard∷＝SEQUENCE{ t35CountryCode INTEGER(0..255)， t35Extension INTEGER(0..255)， manufacturerCode INTEGER(0..65535)， ...，}
Wherein, OCTET STRING is made up of byte serial length l enth and byte serial content.
By the utilization of VoIP GW H.323 standard H.323 the non-standard data segment nonStandardData in protocol message kind and the message field carry out the self-defined ISUP signaling message that encapsulates and carry, and H.323 protocol message that is used to carry or message field needn't be comprehended the concrete implication of ISUP signaling, realize the transparent transmission to the ISUP signaling.
Below by specific embodiment with reference to accompanying drawing 1, the present invention is described in more detail.
Step 103: adopt the same H.323 protocol suite of ISUP signaling that the message transparent transmission mode of corresponding relation is arranged.When the ISUP signaling message of H.323GW receiving access, generally can convert thereof into the Q931+ message of stipulating in the H.323 protocol suite of equity, for example receive the IAM signaling message of ISUP signaling, H.323GW can convert thereof into the H.323 SETUP message of protocol message, because H.323 the SETUP message of stipulating in the agreement can not cover all cell contents of IAM message in the ISUP signaling fully, therefore this method is just utilized above-mentioned SETUP, public nonStandardData field in the Q931+ message such as ALERTING, the ISUP signaling message of receiving is intactly inserted the octet field of the data field data among the nonStandardData, the length l ength field of data is filled out the physical length of isup message, enters step 105 then.
Step 104: adopt the same H.323 protocol suite of ISUP not have the message transparent transmission mode of corresponding relation.When the ISUP signaling message with in the protocol suite H.323 H.225.0/Q.931+ message there is no one-to-one relationship, having specified certain specific H.323 message Userinformation this moment is the transparent forward pass mode of the bearer messages ISUP signaling that realizes signaling.This method receives information ISUP signaling messages such as (FAA) to supplementary service request information (FAR), supplementary service, UserInformation message in utilizing is H.225.0/Q.931+ carried, wherein concrete isup message is encapsulated in the nonStandardData/data/octet field of UserInformation message of appointment, and fills out the isup message length of receiving at nonStandardData/data/length.
Step 105: utilize facility information territory nonStandardIdentifier field among the NonStandardParameter to carry out the sign of facility information.Because the non-H.323 standard protocol specifies of field that this method is used, so only be applicable to the ISUP signaling transparent transmission intercommunication of observing between the equipment of the same race of identical agreement, therefore select the h221NonStandard field among the nonStandardIdentifier for use, come uniquely identified to go out the ownership manufacturer of this equipment by national code, extended code and the manufacturer's code name that provides this equipment.
Finish the ISUP signaling by above process and passed through the H.323 carrying transmission course of VoIP GW on packet network.
Fig. 2 uses protocol message H.323 the ISUP signaling to be carried out the schematic diagram of transparent transmission by VoIP GW H.323, as shown in Figure 2, the solution of the present invention has obtained practical application on the net, can successfully the ISUP signaling be transparent to the other side GW by local GW on packet network, and revert to original I SUP signaling, practical.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1, a kind of transmitting method of signaling, be applicable to standard H.323 agreement the transmission of ISUP signaling be is characterized in that may further comprise the steps:
After a, transmitting terminal are received the ISUP signaling that initiating equipment transmission comes, with this ISUP signaling all order be filled in the data field of the non-standard data field of protocol message H.323;
B, identification of the manufacturer information is filled in the facility information territory of the described non-standard data field of step a, then populated message is encapsulated and send to receiving terminal by agreement H.323;
H.323 c, receiving terminal receive first decapsulation after the message, extract identification of the manufacturer information the H.323 protocol message after decapsulation, judge whether this identification of the manufacturer information is consistent with the information of self, if, then enter steps d, otherwise, current flow process finished;
D, from the data field of the non-standard data field of protocol message H.323, extract the ISUP signaling that to transmit, and this ISUP signaling is sent to destination device.
2, method according to claim 1 is characterized in that step a further comprises:
Whether after transmitting terminal is received the ISUP signaling, judging earlier H.323 has the message of standard corresponding with this ISUP signaling in the agreement, if having, then this ISUP signaling is filled in the non-standard data field of corresponding H.323 protocol message; Otherwise, this ISUP signaling is filled in the non-standard data field of H.323 protocol message of appointment.
3, method according to claim 1 is characterized in that steps d further comprises:
Receiving terminal judges whether to have the ISUP signaling that corresponding relation is arranged with the current H.323 protocol message of receiving, if having, then extracts the ISUP signaling message from the non-standard data field of the H.323 protocol message of correspondence; Otherwise, from the non-standard data field of the H.323 protocol message of appointment, extract the ISUP signaling that will transmit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02148905XA CN1221117C (en) | 2002-11-08 | 2002-11-08 | Method of transmissive transmission of signaling |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB02148905XA CN1221117C (en) | 2002-11-08 | 2002-11-08 | Method of transmissive transmission of signaling |
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| CN1499803A true CN1499803A (en) | 2004-05-26 |
| CN1221117C CN1221117C (en) | 2005-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB02148905XA Expired - Fee Related CN1221117C (en) | 2002-11-08 | 2002-11-08 | Method of transmissive transmission of signaling |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101197764B (en) * | 2006-12-05 | 2010-08-11 | 华为技术有限公司 | Signaling transmission method and device, back-ring tone service implementing method and system |
| CN1917518B (en) * | 2005-08-16 | 2011-04-13 | 阿尔卡特公司 | Method of forwarding signaling information within a communication network |
| US8186890B2 (en) | 1997-05-20 | 2012-05-29 | Adc Telecommunications, Inc. | Fiber connector and adapter |
| US9549076B2 (en) * | 2006-03-30 | 2017-01-17 | Nokia Solutions And Networks Gmbh & Co. Kg | Method for lawful interception during call forwarding in a packet-oriented telecommunications network |
-
2002
- 2002-11-08 CN CNB02148905XA patent/CN1221117C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8186890B2 (en) | 1997-05-20 | 2012-05-29 | Adc Telecommunications, Inc. | Fiber connector and adapter |
| US8870466B2 (en) | 1997-05-20 | 2014-10-28 | Adc Telecommunications, Inc. | Fiber connector and adapter |
| US9383524B2 (en) | 1997-05-20 | 2016-07-05 | Commscope Technologies Llc | Fiber connector and adapter |
| CN1917518B (en) * | 2005-08-16 | 2011-04-13 | 阿尔卡特公司 | Method of forwarding signaling information within a communication network |
| US9549076B2 (en) * | 2006-03-30 | 2017-01-17 | Nokia Solutions And Networks Gmbh & Co. Kg | Method for lawful interception during call forwarding in a packet-oriented telecommunications network |
| CN101197764B (en) * | 2006-12-05 | 2010-08-11 | 华为技术有限公司 | Signaling transmission method and device, back-ring tone service implementing method and system |
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| Publication number | Publication date |
|---|---|
| CN1221117C (en) | 2005-09-28 |
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Effective date of registration: 20170922 Address after: 253600, Dezhou, Shandong province Leling City, Zhen Zhen Zhu Village No. 22 Patentee after: Zhang Liping Address before: 518057 Guangdong city of Shenzhen province science and Technology Park of HUAWEI Road Service Building Patentee before: Huawei Technologies Co., Ltd. |
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Granted publication date: 20050928 Termination date: 20171108 |