CN1567916A - Method for implementing V5 Layer2 user adaptation protocol - Google Patents
Method for implementing V5 Layer2 user adaptation protocol Download PDFInfo
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Abstract
The invention is a method of realizing double-layer V5 user adapter (V5UA) protocol, applying the concept of narrow band signalling link relatively familiar to the user, configuring V5UA links and link group to realize the configuration of V5UA protocol stack; applying the working states of the V5UA links and link group and their migration courses to manage and maintain V5UA links, thus providing the convenience for the user configuring, managing and maintaining the V5UA protocol stack; taking a stream control protocol (SCTP) connection between MGC-side application server process (ASP) and SG-side signalling gateway process (SG) as a V5UA link, where the links processing the same service compose the V5UA link group. It is convenient for the user to understand and use the V5UA protocol, making it simpler to configure the V5UA protocol and beneficial to spread the application of related products to the user.
Description
Technical field
The present invention relates to the signaling system in the communication technical field, relate in particular to the implementation method of a kind of V5 two-layer user adapting protocol (V5UA).
Background technology
Signaling system is the key technology of modern communication networks, and telecommunication apparatus is the key that guarantees high capable telecommunications network to the reliable transmission of signaling message.In conventional telecommunication network, there have been a series of standards and technology to guarantee the reliability of signaling system, as very ripe arrowband No.7 signaling system at present.Progressively maturation along with the IP packet network technologies, the IP packet network can be used for business such as voice-bearer, data, multimedia, traditional circuit-switched network and packet network are in fusing stage, be to realize the intercommunication of legacy circuit-switched networks network and IP packet network, the demand of circuit switching signaling protocol such as No.7 signaling occurred on IP network, transmitting.In order to satisfy demand in IP network transmitting signaling agreement, IETF (the Internet engineering duty group) sets up a special signaling transmission group, and the SIGTRAN that they formulated (signaling transmission) protocol suite will be used for the transmission of legacy circuit-switched signaling protocol on IP network.V5UA (the V5 two-layer user is adaptive) agreement is in the SIGTRAN, its objective is the transparent transmission of realizing message between two layers and three layers of the V5.
Be illustrated in figure 1 as the basic application model of V5UA agreement, the V5UA agreement is to transmit V5 two-layer user protocol of messages by SCTP (flow transmission control protocol) on IP network, is applied in SGW (SG) and the Media Gateway Controller (MGC).V5UA mainly finishes the service function of interface primitive of the 3rd interlayer of the second layer agreement (LAPV5) of V5.2 interface and V5.2 interface, promptly when receiving the primitive that LAPV5 reports on the V5UA-LAPV5 border of V5UA in the SG side, will pass through the V5UA of application server (ASP) side of the end-to-end message informing MGC of V5UA, and the V5UA of ASP side is by interlayer primitive notice two-layer user V5.2; And when the V5UA of ASP side receives the primitive that V5.2 issues on the V5UA-V5 border, also will be by the V5UA of the end-to-end message informing SG of V5UA side, and the V5UA of SG side is by interlayer primitive notice LAPV5.
V5UA agreement regulation: the transmission of messages between Media Gateway Controller (MGC) and the SGW (SG) is to determine that according to interface identifier which bar link this message should be handled by, and each interface identifier and link are to concern one to one.The interface identifier of V5UA is the identification number of being given to concrete V5 link, can be with concrete E1 physical link numbering 100 and concrete interface identifier of time slot formation, as 1001 as the 1st time slot of a V5 link E1.The V5UA of Media Gateway Controller side is to be the V5UA of unit notice signaling gateway side with application server (AS), and it can handle the business which AS sends, and the V5UA of SGW (SG) side then is to be that unit manages with AS.
According to agreement, the AS of V5UA is the logic entity of the last one group of V5.2 link of treatment S G, fuzzyyer with its implication of describing the networking application mode, prior art is utilized SGW (SG), signaling gateway process (SGP), application server process (AS), application server process (ASP, promptly handle the process instance of one or more AS business) dispose and safeguard V5UA equipment, thereby concerning operator, must deep understanding be arranged, otherwise can seem very chaotic to the V5UA agreement.
The existing method user that V5UA equipment is configured and safeguards is difficult for understanding, and complicated operation, and configuration and maintenance get up to make mistakes easily, very inconvenient, like this, be unfavorable for that the provider customer disposes and safeguard this product, also is unfavorable for promoting the use of of V5UA communication products.
Summary of the invention
Technical problem to be solved by this invention is: the deficiency that overcomes existing V5UA protocol devices configuration and maintenance management inconvenience, a kind of implementation method of V5 two-layer user adapting protocol is provided, thereby make things convenient for configuration and the maintenance of user, also make things convenient for promoting the use of of V5UA equipment V5UA equipment.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
The implementation method of this V5 two-layer user adapting protocol may further comprise the steps:
Media Gateway Controller (MGC) links to each other by IP network with SGW (SG) equipment, transmits V5 two-layer user adapting protocol message by stream control transmission protocol (sctp) on described IP network;
SCTP between the signaling gateway process (SGP) of application server process of MGC side (ASP) and SG side connects and composes a link, and the link of handling identical services constitutes link group;
The state of described link moves according to the state of SCTP connection status and ASP or SGP, and the state of link group then moves according to the state of the link of forming this link group.
Described link working state comprises: not the link setup state, the link setup state, prepare state of activation, state of activation, the link working state transition process comprises the following steps:
A1, link initial condition are link setup state not, after receiving the link setup command that the user sends, set up SCTP and connect, and link is also moved to link setup state simultaneously;
A2, when receiving the order of enabling link that the user sends, link will send enables ASP message to SGP, if SGP accepts to enable request, link is moved to the preparation state of activation;
A3, when receiving the active link that the user sends, the order of handle link business, link will send and activate ASP message to SGP, if SGP accepts this order, link is just moved to state of activation.
Described link working state transition process also comprises the following steps:
B1, when receiving the time-out processing signaling business that the user sends, the order that cancellation activates, link will send cancellation and activate ASP message to SGP, link is just moved to the preparation state of activation;
B2, when receiving the order that stops to manage business that the user sends, link stops using ASP message to SGP transmission, link is just moved to link setup state;
B3, tear the chain order open when what receive that the user sends, link will be removed SCTP and connect, and link is just moved to not link setup state.
If SCTP connects interruption, then link is from other state transition to link setup state not.
If link receives the connection that SCTP reports up and restarts order preparing state of activation or state of activation, then this link is moved to link setup state.
In the SG side, described link group operating state comprises: the machine state of delaying, preparation state of activation, state of activation, pending status, described link group operating state transition process comprises the following steps:
S1, link group initial condition are the machine state of delaying, and when the Link State in the link group became the preparation state of activation, link group was also moved to the preparation state of activation simultaneously;
S2, link group are when preparing state of activation, and when the Link State in the link group became state of activation, link group was also moved to state of activation simultaneously;
S3, link group are in the SG side and when state of activation, if the link of the last item state of activation in the link group becomes other state, link group is also moved to pending status simultaneously.
When link group enters pending status, will begin to carry out the wait of certain hour, if there is link to become state of activation before wait timeout in the link group, then link group is also moved to state of activation; If also there is the link of preparing state of activation in the link group when the pending status wait timeout, then link group is moved to the preparation state of activation; If only there is link link setup or the link link of link setup state not in the link group when the pending status wait timeout, then link group is moved to the machine state of delaying.
In the ASP side, described link group operating state comprises: the machine state of delaying, preparation state of activation, state of activation, described link working state transition process comprises the following steps:
A1, link group initial condition are the machine state of delaying, and when the Link State in the link group became the preparation state of activation, link group was also moved to the preparation state of activation simultaneously;
A2, link group are when preparing state of activation, and when the Link State in the link group became state of activation, link group was also moved to state of activation simultaneously; If only have link setup or the not link of link setup state in the link group, then link group is moved to the machine state of delaying;
A4, link group are when state of activation, and when the link of the last item state of activation in the link group became other state, if also there is the link of preparing state of activation in the link group, then link group was moved to the preparation state of activation; When the link of the last item state of activation in the link group becomes link setup or not during the link setup state, link group is moved to the machine state of delaying.
When described link and link group were configured, step was as follows:
IP address, the port numbers of the local terminal end points of c1, configuration link;
IP address, the port numbers of the opposite end end points of c2, configuration link;
C3, the V5 link of the command transmitting that this link and link group carry is set.
Beneficial effect of the present invention is: the implementation method that the invention provides a kind of Signaling System Number 7 net V5 two-layer user adapting protocol, link notion in the familiar signaling network of user application, by on Operation and Maintenance, adopting V5UA link and link group to substitute SGW SG, signaling gateway process SGP, application server AS, application server process ASP, configuration and maintenance that configuration and the maintenance of SG, ASP is converted to V5UA link and link group.Thereby easy to understand in configuration and when using, easy to operate, and data configuration is simple, the data straightforward that V5UA link group table, V5UA link table, these V5UA of V5UA interface identifier table need dispose, thereby be very easy to user's use, reduced probability of errors.
Because method of the present invention is still followed the V5UA consensus standard external interface is provided, thereby can realize intercommunication with the V5UA equipment of other producer fully, the present invention uses V5UA link and V5UA link group can satisfy actual networking fully and uses, not only made things convenient for the operation and maintenance of user, and helped promoting the application of Related product to the user to V5UA equipment.
Description of drawings
Fig. 1 is the basic application model figure of V5UA agreement;
Fig. 2 is V5UA link of the present invention and link group networking application schematic diagram;
Fig. 3 is a V5UA Link State transition graph;
Fig. 4 is a SG side V5UA link group state transition diagram;
Fig. 5 is an ASP side V5UA link group state transition diagram.
Embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
In order to make the user simple to the V5UA equipment disposition, operation and maintenance is convenient, and the present invention proposes the notion of V5UA link and link group, and a SCTP connects and composes a V5UA link, and what carry on the link is the business of one group of V5UA interface identifier.Can think, the V5UA link has comprised a signaling gateway process (SGP), an application server process (ASP) and SGP and has been connected with SCTP between the ASP, this V5UA link is one group of specific V5UA interface identifier service, the V5UA link group is formed in the set that is the V5UA link of a group interface identifier service jointly, because interface identifier is unique in the link group the inside, so the V5UA link group that one group of V5UA link is constituted is handled to be identical business, link group is defined as one group of set of handling the link of identical services.Service processing mode to the V5UA interface identifier in the link group can be active and standby pattern, also can be the mode of load sharing.
A V5UA link of the present invention and link group can be carried the V5 link of one or more command transmitting simultaneously, and these V5 links are formed a V5UA link and link group (wherein ASP, SGP, AS will be configured according to the agreement needs).Be illustrated in figure 2 as a kind of V5UA link and link group networking and use schematic diagram, the signaling transmission of four V5 links of a signaling gateway process SGP carrying processing among the figure, wherein V5 link 0,1,2,3 is carried on respectively on the V5UA link 0,1,2,3, and wherein V5UA link 0,1 is formed V5UA link group 0, and V5UA link 2,3 is formed V5UA link group 1; Business on such two V5 links 0,1 is by 0 transmission of V5UA link group, then handle in application server process ASP side by ASP0, ASP1, and the business of V5 link 2,3 is by 1 transmission of V5UA link group, and is handled in the opposite end by ASP3, the ASP4 of application server process ASP side.In actual applications, the V5 link that every V5UA link and link group are carried, and handle and can dispose decision by the user via which application server process (ASP) or signaling gateway process (SGP).
The concrete steps that the present invention disposes the V5UA link are:
(1) at first disposes IP address, the port numbers of the local terminal end points of V5UA link; With application server process (ASP) side is example, and the user will dispose the IP address and the port numbers of local terminal earlier when increasing a V5UA link, promptly by this information configuration application server process (ASP);
(2) then dispose IP address, the port numbers of the opposite end end points of V5UA link, promptly by this information configuration signaling gateway process (SGP);
(3) which bar the V5 link that the command transmitting that this V5UA link and link group carry is set at last has, and has so just finished the needed configuration of V5UA agreement.
Concerning the user, be sightless to the concrete configuration process of agreement, because the configuration of V5UA link and link group is readily appreciated that, the user does not need have anything to understand to agreement just can grasp configuration and use.Certainly, the local terminal end points also can be a signaling gateway process (SGP), and at this moment, the opposite end end points is exactly application server process (ASP).
The present invention is on the basis of the link notion of reference Signaling System Number 7 net, and application development goes out supporting V5UA link and link group state machine and corresponding V5UA link and link group way to manage, and the state of V5UA link is determined jointly by SCTP connection status and ASP state.
Be illustrated in figure 3 as V5UA Link State transition graph, described V5UA link working state has four kinds: link setup state (UNESTABLISH not, be initial condition), link setup state (DOWN), prepare state of activation (INACTIVE), state of activation (ACTIVE), V5UA link working state transition process comprises the following steps:
1, V5UA link initial condition is link setup state not, and after receiving the link setup command that the user sends, protocol stack will send order and set up SCTP and connect, and the V5UA link is also moved to link setup state simultaneously;
2, when receiving the order of enabling the V5UA link that the user sends, the V5UA link will send enables application server process (ASP UP) message to signaling gateway process (SGP), if signaling gateway process (SGP) is accepted to enable request, the V5UA link is moved to the preparation state of activation;
3, when receiving activation V5UA link that the user sends, handling the order of V5UA link traffic, the V5UA link will send and activate application server process (ASP ACTIVE) message to signaling gateway process (SGP), if signaling gateway process (SGP) is accepted this order, the V5UA link is just moved to state of activation;
4, when receiving the time-out processing signaling business that the user sends, the order that cancellation activates, the V5UA link will send cancellation and activate application server process (ASP INACTIVE) message to signaling gateway process (SGP), and the V5UA link is just moved to the preparation state of activation;
5, when receiving the order that stops to manage business that the user sends, the V5UA link stops using application server process (ASP DOWN) message to give signaling gateway process (SGP) transmission, and the V5UA link is just moved to link setup state;
6, tear the chain order open when what receive that the user sends, the V5UA link will be removed SCTP and connect, and the V5UA link is just moved to not link setup state.
If 7 because certain is former thereby SCTP connect to be interrupted, then the V5UA link all can be from other state transition to link setup state not.
If 8 V5UA links receive the connection that SCTP reports up and restart order preparing state of activation or state of activation, then this V5UA link is moved to link setup state.
The state of V5UA link group depends on the state of the V5UA link of forming link group, and its state mainly is that the V5UA link of high Link State is determined by having in the link group.The state transition of V5UA link group is divided into SG side and ASP side.
Be illustrated in figure 4 as SG side V5UA link group state transition diagram, in the SG side, described V5UA link group operating state has four kinds: the machine state (DOWN) of delaying, preparation state of activation (INACTIVE), state of activation (ACTIVE), pending status (PENDING).Described V5UA link group operating state transition process comprises the following steps:
S1, V5UA link group initial condition are the machine state of delaying, and when the V5UA Link State in the link group became the preparation state of activation, the V5UA link group was also moved to the preparation state of activation simultaneously;
S2, V5UA link group are when preparing state of activation, and when the V5UA Link State in the link group became state of activation, the V5UA link group was also moved to state of activation simultaneously, and have the V5UA link that be stored in state of activation in the V5UA link group this moment;
S3, be in the SG side and during in state of activation, if the V5UA link of the last item state of activation in the link group becomes other state, the V5UA link group is also moved to pending status (PENDING) simultaneously when the V5UA link group;
S4, when the V5UA link group enters pending status, will begin to carry out the wait of certain hour, if there is the V5UA link to become state of activation before wait timeout in the link group, then the V5UA link group is also moved to state of activation simultaneously;
If also there is the V5UA link of preparing state of activation in S5 in the link group when the pending status wait timeout, then the V5UA link group is moved to the preparation state of activation;
If only there is link link setup (DOWN) or the link V5UA link of link setup (UNESTABLISH) state not in S6 in the link group when the pending status wait timeout, do not have one to be in the V5UA link of preparing to activate (INACTIVE) or state of activation (ACTIVE), then the V5UA link group is moved to the machine state (DOWN) of delaying.
Be illustrated in figure 5 as ASP side V5UA link group state transition diagram, in the ASP side, described V5UA link group operating state has three kinds: the machine state (DOWN) of delaying, preparation state of activation (INACTIVE), state of activation (ACTIVE).Described V5UA link working state transition process includes the following step:
A1, V5UA link group initial condition are the machine state of delaying, and when the V5UA Link State in the link group became the preparation state of activation, the V5UA link group was also moved to the preparation state of activation simultaneously;
A2, V5UA link group are when preparing state of activation, and when the V5UA Link State in the link group became state of activation, the V5UA link group was also moved to state of activation simultaneously, and have the V5UA link that be stored in state of activation in the V5UA link group this moment;
A3, V5UA link group are when preparing state of activation, if only have link setup (DOWN) or not the V5UA link of link setup (UNESTABLISH) state in the V5UA link group, then the V5UA link group is moved to the machine state (DOWN) of delaying;
A4, V5UA link group are when state of activation, and when the V5UA link of the last item state of activation in the link group became other state, if also there is the V5UA link of preparing state of activation in the link group, then the V5UA link group was moved to the preparation state of activation;
A5, V5UA link group are when state of activation, when the V5UA link of the last item state of activation in the link group becomes link setup (DOWN) or not during link setup (UNESTABLISH) state, the V5UA link group is moved to the machine state (DOWN) of delaying.
After the notion of having introduced V5UA link and link group, compare with original AS, ASP:
At first, the notion of V5UA link and link group is similar to the notion of original arrowband, understand easily, the V5UA link is exactly a logical channel transmitting the V5UA user message being used between SG and the MGC, the V5UA link group is exactly to handle the set of the V5UA link of identical services, thereby the user is easy to operate when configuration and use, has reduced the requirement to operating personnel, has reduced error probability.
Secondly, simple on data configuration, the data that V5UA need dispose have: V5UA link group table, V5UA link table, V5UA interface identifier table.Indicated in link number in the group, the group between link service processing mode etc. in the V5UA link group table; The content of V5UA link table is exactly the required information of SCTP endpoint, comprises the port numbers and the IP address of local terminal and opposite end; V5UA interface identifier table then it may be noted that its corresponding physical interface.Such configuration data is compared with original AS/ASP notion, is simple and easy to usefulness, is very easy to the user and is configured.
The present invention has not only made things convenient for the operation and maintenance of user to V5UA equipment, and helps promoting to the user application of Related product.
Claims (9)
1, a kind of implementation method of V5 two-layer user adapting protocol is characterized in that: may further comprise the steps:
Media Gateway Controller (MGC) links to each other by IP network with SGW (SG) equipment, transmits V5 two-layer user adapting protocol message by stream control transmission protocol (sctp) on described IP network;
SCTP between the signaling gateway process (SGP) of application server process of MGC side (ASP) and SG side connects and composes a link, and the link of handling identical services constitutes link group;
The state of described link moves according to the state of SCTP connection status and ASP or SGP, and the state of link group then moves according to the state of the link of forming this link group.
2, the implementation method of V5 two-layer user adapting protocol according to claim 1, it is characterized in that: described link working state comprises: not the link setup state, the link setup state, prepare state of activation, state of activation, the link working state transition process comprises the following steps:
A1, link initial condition are link setup state not, after receiving the link setup command that the user sends, set up SCTP and connect, and link is also moved to link setup state simultaneously;
A2, when receiving the order of enabling link that the user sends, link will send enables ASP message to SGP, if SGP accepts to enable request, link is moved to the preparation state of activation;
A3, when receiving the active link that the user sends, the order of handle link business, link will send and activate ASP message to SGP, if SGP accepts this order, link is just moved to state of activation.
3, the implementation method of V5 two-layer user adapting protocol according to claim 2 is characterized in that: described link working state transition process also comprises the following steps:
B1, when receiving the time-out processing signaling business that the user sends, the order that cancellation activates, link will send cancellation and activate ASP message to SGP, link is just moved to the preparation state of activation;
B2, when receiving the order that stops to manage business that the user sends, link stops using ASP message to SGP transmission, link is just moved to link setup state;
B3, tear the chain order open when what receive that the user sends, link will be removed SCTP and connect, and link is just moved to not link setup state.
4, according to the implementation method of claim 2 or 3 described V5 two-layer user adapting protocols, it is characterized in that: if SCTP connect to interrupt, then link is from other state transition to link setup state not.
5, according to the implementation method of claim 2 or 3 described V5 two-layer user adapting protocols, it is characterized in that: if link receives the connection that SCTP reports up and restarts order preparing state of activation or state of activation, then this link is moved to link setup state.
6, the implementation method of V5 two-layer user adapting protocol according to claim 1, it is characterized in that: in the SG side, described link group operating state comprises: the machine state of delaying, preparation state of activation, state of activation, pending status, described link group operating state transition process comprises the following steps:
S1, link group initial condition are the machine state of delaying, and when the Link State in the link group became the preparation state of activation, link group was also moved to the preparation state of activation simultaneously;
S2, link group are when preparing state of activation, and when the Link State in the link group became state of activation, link group was also moved to state of activation simultaneously;
S3, link group are in the SG side and when state of activation, if the link of the last item state of activation in the link group becomes other state, link group is also moved to pending status simultaneously.
7, the implementation method of V5 two-layer user adapting protocol according to claim 6, it is characterized in that: when link group enters pending status, the wait of certain hour will be begun to carry out, if there is link to become state of activation before wait timeout in the link group, then link group is also moved to state of activation; If also there is the link of preparing state of activation in the link group when the pending status wait timeout, then link group is moved to the preparation state of activation; If only there is link link setup or the link link of link setup state not in the link group when the pending status wait timeout, then link group is moved to the machine state of delaying.
8, the implementation method of V5 two-layer user adapting protocol according to claim 1, it is characterized in that: in the ASP side, described link group operating state comprises: the machine state of delaying, preparation state of activation, state of activation, described link working state transition process comprises the following steps:
A1, link group initial condition are the machine state of delaying, and when the Link State in the link group became the preparation state of activation, link group was also moved to the preparation state of activation simultaneously;
A2, link group are when preparing state of activation, and when the Link State in the link group became state of activation, link group was also moved to state of activation simultaneously; If only have link setup or the not link of link setup state in the link group, then link group is moved to the machine state of delaying;
A4, link group are when state of activation, and when the link of the last item state of activation in the link group became other state, if also there is the link of preparing state of activation in the link group, then link group was moved to the preparation state of activation; When the link of the last item state of activation in the link group becomes link setup or not during the link setup state, link group is moved to the machine state of delaying.
9, the implementation method of V5 two-layer user adapting protocol according to claim 1 is characterized in that: when described link and link group were configured, step was as follows:
IP address, the port numbers of the local terminal end points of c1, configuration link;
IP address, the port numbers of the opposite end end points of c2, configuration link;
C3, the V5 link of the command transmitting that this link and link group carry is set.
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| CNB031456111A CN100388731C (en) | 2003-06-24 | 2003-06-24 | Method for implementing V5 Layer2 user adaptation protocol |
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| CNB031456111A CN100388731C (en) | 2003-06-24 | 2003-06-24 | Method for implementing V5 Layer2 user adaptation protocol |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009127112A1 (en) * | 2008-04-17 | 2009-10-22 | 中兴通讯股份有限公司 | Method for state migrating of stream control transmission protocol |
| CN108177785A (en) * | 2017-12-07 | 2018-06-19 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of propeller autofeather control method based on state machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2001011856A1 (en) * | 1999-08-04 | 2001-02-15 | Telefonaktiebolaget Lm Ericsson (Publ) | An ip based telephone system |
| CN1134955C (en) * | 1999-09-01 | 2004-01-14 | 信息产业部武汉邮电科学研究院 | Vertical package of adaption method for integrating internet with quasi-synchronous digital system |
| EP1087636A2 (en) * | 1999-09-23 | 2001-03-28 | Alcatel | Method and system for allocating channels in an access system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009127112A1 (en) * | 2008-04-17 | 2009-10-22 | 中兴通讯股份有限公司 | Method for state migrating of stream control transmission protocol |
| CN101262437B (en) * | 2008-04-17 | 2011-07-13 | 中兴通讯股份有限公司 | A method for state migration of stream control transmission protocol |
| CN108177785A (en) * | 2017-12-07 | 2018-06-19 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of propeller autofeather control method based on state machine |
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