CN1997085A - A method for end release of the media gateway and a media gateway - Google Patents
A method for end release of the media gateway and a media gateway Download PDFInfo
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- CN1997085A CN1997085A CN 200610157984 CN200610157984A CN1997085A CN 1997085 A CN1997085 A CN 1997085A CN 200610157984 CN200610157984 CN 200610157984 CN 200610157984 A CN200610157984 A CN 200610157984A CN 1997085 A CN1997085 A CN 1997085A
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- media gateway
- soft switch
- warning tone
- gateway
- end points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/102—Gateways
- H04L65/1023—Media gateways
- H04L65/103—Media gateways in the network
Abstract
This invention discloses one media network gate release terminal method, which comprises the following steps: a, interacting between flexible exchange and media network gate; b, determining all terminals to be released on media gate; c, sending inform sound to all active terminals by media network gate; d, with the sending, media network gate releases all terminals. This invention also discloses one media network gate to solve the off line maintenance.
Description
Technical field
The present invention relates to the communications field, particularly relate to the technology of media network gate release terminal.
Background technology
NGN (Next Generation Network), i.e. next generation network.NGN is a packet network, and it provides the multiple business that comprises telecommunication service, the tranmission techniques that can utilize various bandwidth and have service quality (QoS) ability, and the realization business function separates with the bottom tranmission techniques; It provides the user to freely the inserting of different business provider network, and supports universal mobility, realizes consistency and uniformity that the user uses business.
NGN is separated into the separate network parts with the functional module of conventional switch, and each parts is divided by corresponding function, independent development.Adopt professional control with calling to separate, call out control and carrying isolation technics, realization Open Distributed network configuration makes business be independent of network.
Soft switch is as the network control layer of NGN, adopt the computer platform of independent open, to call out control separates from media gateway, realize the basic call controlled function by software, comprise call routing, management control and signalling interworking, make the service supplier can be free, open api interface is provided in conjunction with bearer service and control protocol, thus can make the third party fast, flexibly, realization business effectively provides.
Media gateway (MGW, Media Gateway) is responsible for the comprehensive access of various users or various access networks, as ordinary telephone subscriber, isdn user, PSTN/ISDN network insertion, V5 access and 3G network access etc.And the media stream transition that the user is inserted becomes the desired media stream formats of core bearer network.Media gateway and professional relevant action all are to finish under the control of soft switch, as the selection of coding, compression algorithm, call establishment, release, interruption, the distribution of resource and release, the detection of distinctive signal and processing etc.
Special relationship between media gateway and the soft switch has determined the importance of control protocol between them, MGCP (Media Gateway Control Protocol, MGCP) and H.248 be exactly control protocol between soft switch and the media gateway.The MGCP agreement realizes simple relatively, the early stage application often, but present application trend then is to turn to H.248 consensus standard gradually.
Because media gateway and soft switch are physically separated equipment, therefore has the demand (for example software upgrading, removable parts hardware single board etc.) that off-line is safeguarded: when media gateway is prepared to withdraw from service, should circulate a notice of to soft switch, so that the relevant connection on the media gateway is in time removed in soft switch, discharge affected calling.RSIP message in the MGCP agreement, the ServiceChange message in H.248, can be used to report the service state of the part end points under whole gateway or the gateway by media gateway, the relevant incident of service state that the indication of method wherein (Method) parameter is taken place, when the method that for example reports was forced, expression gateway or end points had withdrawed from service; When the method that reports was graceful delivery mode (graceful), expression gateway or end points were about to withdraw from service, though the connection of having set up is temporarily unaffected, appointment the time delay and will discharge by force.For the graceful mode, if the time delay value that media gateway provides is 0, the expression soft switch can wait normal release to be connected, but for fear of user's call release not all the time, cause soft switch to be among wait when unlimited, also can take measures, after waiting for the sufficiently long time, begin to remove remaining connection.
Operator carries out off-line to media gateway and safeguards, its time, normally it was planned, therefore from the angle of media gateway, can use the graceful mode to report RSIP/ServiceChange message, and the indication time delay value.Press protocol requirement, soft switch this moment should be avoided setting up new connection on this gateway, and can take measures, and discharges existing the calling in graceful mode.
When media gateway will withdraw from service, soft switch generally taked to call out normally release steps, discharged relevant end points, connection.From user's angle, ongoing conversation meeting is removed suddenly, and the user listens busy tone or can't hear sound fully, can bring bad impression to the user like this.
Summary of the invention
The embodiment of the invention provides a kind of media network gate release terminal method and device, carries out the off-line maintenance in order to solve in media gateway, discharges all end points, when connecting, cuts off conversation suddenly, causes the problem of bad impression to the user.
Embodiment of the invention method comprises step:
A, soft switch and media gateway are carried out alternately;
All end points on B, the decision release media gateway;
C, media gateway send warning tone to all active endpoint;
After D, warning tone sent and finish, media gateway discharged all end points.
A kind of media gateway comprises:
Receiving element: be used to receive playback Indication message from soft switch;
Performance element: be used for according to described playback Indication message, withdrawing from service according to media gateway selects to give broadcast unit for the warning tone of playing to terminal use's influence and plays, or after the dual-homed switching of soft switch, withdraw from service according to media gateway and terminal use's influence is selected to give broadcast unit for the warning tone of playing play;
Broadcast unit: be used for sending warning tone to each active endpoint.
Embodiment of the invention beneficial effect is as follows:
When the method for the embodiment of the invention discharged all end points by withdraw from service in media gateway, to the warning tone that user's play service of setting up calling will soon be interrupted, dismantling call can improve the bad impression that service disconnection causes the user then.
Description of drawings
Fig. 1 is the carrying and the flow chart of controlling media network gate release terminal method under the separation architecture of the embodiment of the invention;
Fig. 2 is the signaling process figure of embodiments of the invention one;
Fig. 3 is the signaling process figure of embodiments of the invention two;
Fig. 4 is the signaling process figure of embodiments of the invention three;
Fig. 5 is the signaling process figure of embodiments of the invention four;
Fig. 6 is the communication system schematic diagram of a kind of media network gate release terminal of the embodiment of the invention.
Embodiment
As shown in Figure 1, media network gate release terminal method may further comprise the steps under the carrying that provides of the embodiment of the invention and the control separation architecture:
A, soft switch and media gateway are carried out alternately;
Soft switch and media gateway be specifically as follows alternately that the media gateway gracefulness withdraws from, soft switch carries out and isolates gateway operation or the dual-homed switching of soft switch is caused mutual.
All end points on B, the decision release media gateway;
In the practice, can be by all end points on soft switch or the media gateway decision release media gateway.
C, media gateway send warning tone to all active endpoint;
Since inactive end points no longer with user terminal communication, so do not need to send warning tone to it.
After D, warning tone sent and finish, media gateway discharged all end points.
Wherein, though playback is carried out at a plurality of active endpoint, what play is same signal, so media gateway can use same source of sound to produce this warning tone, so that save the playback resource.Certainly, same source of sound can produce identical warning tone or different warning tone.
Withdraw from service afterwards to the Different Effects of business according to media gateway, soft switch or media gateway can be taked corresponding playback strategy targetedly.For example for Tandem Gateway, if it withdraws from service, soft switch might select another Tandem Gateway to come the new calling of route, therefore can send warning tone " media gateway will be carried out plant maintenance; with the short interruption service; retry after a while please " to the user by media gateway, the user can redial number one time like this, initiates new calling.If IAD withdraws from service, because subscriber's line just is connected on this gateway, as long as this gateway service of not recovering, the user just can't call out normally, at this moment just can send warning tone " media gateway will be carried out plant maintenance; business will be interrupted certain hour, would you please retry after 20 minutes " to the user by media gateway.
Certainly, play verbal announcement (announcement) and need the regular hour.If the time delay value that media gateway is indicated in status change message is too short, be not enough to play complete verbal announcement, then can play single-tone (tone) and replace, for example play the busy tone of several seconds " pout, pout, pout ", dismantling call connects then.
Specific to protocol network H.248, withdraw from service scenario for different media gateway, different operating processes is arranged:
Embodiment one: when media gateway in graceful (gracefulness withdraws from) mode when soft switch reports ServiceChange (state change) message, except stipulating according to agreement, avoid on this gateway, setting up outside the new connection, also send instruction to media gateway, indication is play warning tone on the existing end points of having set up calling.
Soft switch can be specified ContextID=All (not comprising empty contextual all contexts), and TerminationID=wildcard (all wildcard end points) requires to carry out playback.
As shown in Figure 2, below be signaling process:
Step 21: in the user's communication process, media gateway sends ServiceChange (state change) message to soft switch;
Its end points is ROOT, shows to change whole gateway status, and method is graceful, shows that gateway will retreat out service to fixed response time.Time delay value provides in ServiceChange message, if be 0, waits for the soft switch call release when presentation medium gateway is unlimited.
Step 22: soft switch sends ServiceChange-Reply (state changes response) message to media gateway, indicates it to receive the ServiceChange message of media gateway;
Step 23: soft switch sends Modify (modification end points) message to media gateway, and indicating media gateway is play warning tone on all active endpoint;
Step 24: media gateway sends Modify-Reply (revising the end points response) message, the execution result that it is ordered Modify to soft switch indication indication to soft switch.If run succeeded, media gateway promptly sends warning tone to each active endpoint;
Step 25: media gateway sends Notify (notice) message to soft switch, finishes playing to soft switch indication warning tone;
Step 26: soft switch sends Notify-Reply (push-notification-answer) message to media gateway, indicates it to receive Notify (notice) message of media gateway;
Step 27: soft switch sends Subtract (dismounting end points) message, the end points on the release media gateway to media gateway;
Step 28: media gateway sends Subtract-Reply (removing the end points response) message to soft switch, indicates its execution result to Subtract message.
Embodiment two: except the passive ServiceChange information reporting of accepting media gateway, also can provide operation maintenance command in soft switch, can delay to isolate to certain media gateway.The warning tone that operator can specify time delay value, need play gateway.After this order is carried out in soft switch, no longer on this gateway, set up new calling, require media gateway to play warning tone simultaneously, and at the time delay value of appointment to after date, stop playback and also remove corresponding call by force.
As shown in Figure 3, signaling process is as follows:
Step 31: carried out the isolation gateway operation in the soft switch, sent Modify (modification end points) message to media gateway, indicating media gateway is play sound on all active endpoint;
Step 32: media gateway sends Modify-Reply (revising the end points response) message to soft switch, indicates its execution result to the Modify order.If run succeeded, media gateway promptly sends warning tone to each active endpoint;
Step 33: media gateway sends Notify (notice) message to soft switch, finishes playing to soft switch indication warning tone;
Step 34: soft switch sends Notify-Reply (push-notification-answer) message and gives media gateway, indicates it to receive Notify (notice) message of media gateway;
Step 35: soft switch sends Subtract (dismounting end points) message to media gateway, discharges the end points on the gateway;
Step 36: media gateway sends Subtract-Reply (removing the end points response) message to soft switch, indicates its execution result to Subtract message.
Embodiment three: out of touch when media gateway and current soft switch, if media gateway has disposed a plurality of soft switch address (being the dual-homed function of soft switch), then media gateway can attempt to be registered to standby soft switch.The main information of standby soft switch with the extant call in the soft switch, so after media gateway obtains the response of succeeding in registration of standby soft switch, can discharge existing end points, connection usually.Before discharging, also can in the full gateway scope, play warning tone earlier, notify the user to be about to call release, require user's retry.
As shown in Figure 4, signaling process is as follows:
Step 41: media gateway is got in touch with main having lost with soft switch, so attempt initiating registration to standby soft switch, media gateway sends ServiceChange (state change) message to standby soft switch;
Its end points is ROOT, and method is Restart (restarting mode), and given time delay value, shows that gateway will recover service after giving fixed response time.
Step 42: standby soft switch sends ServiceChange-Reply (state changes response) message to media gateway, indicates it to receive ServiceChange (state change) message of media gateway, and agrees gateway registration.
Owing to do not have shared resource information on the media gateway in the standby soft switch, so the calling on the media gateway will be discharged all.Media gateway is play warning tone to each active endpoint automatically before discharging all-calls, promptly discharge the resource that all-calls takies after finishing.
For avoiding playing in the warning tone process, new calling is initiated in standby soft switch again on the end points of listening warning tone, in 41 registration message, media gateway has been specified time delay value, this time delay just shows, standby soft switch must be at the appointed time after, just can think the media gateway service of having recovered, can set up new calling.Before time delay expired, the playback of media gateway can not be interfered.
Embodiment four: as protocol network H.248, above-mentioned flow process also can realize under the MGCP protocol network.Withdrawing from business service with media gateway with graceful withdrawing mode is example, for the media gateway of using the MGCP agreement, can specify mg (representing whole gateway) as end points, requires to carry out playback.As shown in Figure 5, signaling process is as follows:
Step 51: in the user's communication process, media gateway sends RSIP (restarting) message to soft switch;
Its end points be asterisk wildcard (
*), method is graceful (a graceful withdrawing mode), shows that gateway will retreat out service to fixed response time.Time delay value provides in RSIP message, if be 0, waits for the soft switch call release when presentation medium gateway is unlimited.
Step 52: soft switch sends RSIP-RSP (restarting response) message to media gateway, indicates it to receive RSIP (restarting) message of media gateway;
Step 53: soft switch sends RQNT (request notice) message to media gateway, and indicating media gateway is play warning tone on all active endpoint;
Step 54: media gateway sends RQNT-RSP (request push-notification-answer) message to soft switch, indicates its execution result to the RQNT order.If run succeeded, media gateway promptly sends warning tone to each active endpoint;
Step 55: media gateway sends NTFY (notice) message to soft switch, and the indication warning tone finishes playing;
Step 56: soft switch sends NTFY-RSP (push-notification-answer) message to media gateway, indicates it to receive NTFY (notice) message of media gateway;
Step 57: soft switch sends DLCX (remove and connect) message to media gateway, discharges the end points on the gateway;
Step 58: media gateway sends DLCX-RSP (dismounting connection response) message to soft switch, indicates its execution result to the DLCX order.
As shown in Figure 6, the communication system for a kind of media network gate release terminal comprises: soft switch 60 and media gateway 61.Wherein media gateway 61 specifically comprises: receiving element 611, performance element 612, broadcast unit 613 and memory cell 614.
Because WCDMA mobile network's MSC Server (Mobile Switching Center Server)-MGW (media gateway), MGCF (the MGCF)-IM-MGW (IP multimedia-media gateway) in the IMS network, the MRFC (media resource function control) in the IMS network-MRFP (media resource function processing) adopt with NGN and similarly carry the framework that separates with control, use the H248 agreement to finish the control of carrying, obviously also can use technology of the present invention.Only in heterogeneous networks, network element has different appellations, MGC, MSC Server, MGCF, MRFC etc. should be regarded as the synonym of soft switch, IM-MGW, MRFP is regarded as the synonym of MGW.
Initiatively withdraw from service in media gateway, soft switch is carried out isolated operation and media gateway when carrying out the dual-homed switching of soft switch to media gateway, media gateway will discharge all end points, method and device by the embodiment of the invention, media gateway is about to the warning tone of interruption to user's play service of setting up calling, dismantling call can improve the bad impression that service disconnection causes the user so then.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (14)
1, a kind of media network gate release terminal method is characterized in that, may further comprise the steps:
A, soft switch and media gateway are carried out alternately;
All end points on B, the decision release media gateway;
C, media gateway send warning tone to all active endpoint;
After D, warning tone sent and finish, media gateway discharged all end points.
2, the method for claim 1 is characterized in that, described warning tone uses same source of sound to produce by media gateway.
3, method as claimed in claim 2 is characterized in that, described same source of sound produces identical warning tone or different warning tone.
4, the method for claim 1 is characterized in that, described warning tone adopts the corresponding sound of playing to terminal use's influence after withdrawing from service according to media gateway.
5, the method for claim 1 is characterized in that, described steps A comprises following substep:
A1, media gateway send message to soft switch, and provide time delay value, show that media gateway will retreat out service to fixed response time.
6, the method for claim 1 is characterized in that, has carried out the isolation gateway operation in the described steps A in the soft switch.
As claim 5,6 described methods, it is characterized in that 7, described step B is all end points on the soft switch decision release media gateway.
8, method as claimed in claim 7 is characterized in that, described step C comprises following substep:
C1, soft switch indicating media gateway are play warning tone on all active endpoint;
C2, media gateway send warning tone to each active endpoint.
9, method as claimed in claim 8 is characterized in that, described step D comprises following substep:
D1, the described warning tone of media gateway notice soft switch finish playing;
D2, soft switch indicating media gateway discharge all end points.
10, the method for claim 1 is characterized in that, media gateway and described soft switch have lost gets in touch, so attempt initiating registration to second soft switch, described steps A comprises following substep:
A1, media gateway send message to second soft switch, and given time delay value, show that media gateway will recovery service after giving fixed response time.
11, method as claimed in claim 10 is characterized in that, described step B is that the media gateway decision discharges all end points.
12, method as claimed in claim 11 is characterized in that, described step C is that media gateway sends warning tone to each active endpoint automatically.
13, a kind of media gateway is characterized in that, comprising:
Receiving element: be used to receive playback Indication message from soft switch;
Performance element: be used for according to described playback Indication message, withdrawing from service according to media gateway selects to give broadcast unit for the warning tone of playing to terminal use's influence and plays, or after the dual-homed switching of soft switch, withdraw from service according to media gateway and terminal use's influence is selected to give broadcast unit for the warning tone of playing play;
Broadcast unit: be used for sending warning tone to each active endpoint.
14, media gateway as claimed in claim 13 is characterized in that, comprises the memory cell that links to each other with performance element: being used to store can be for the warning tone of playing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610157984 CN1997085A (en) | 2006-12-22 | 2006-12-22 | A method for end release of the media gateway and a media gateway |
| PCT/CN2007/071064 WO2008077335A1 (en) | 2006-12-22 | 2007-11-15 | A method of a media gateway releasing an endpoint and the media gateway thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610157984 CN1997085A (en) | 2006-12-22 | 2006-12-22 | A method for end release of the media gateway and a media gateway |
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| CN1997085A true CN1997085A (en) | 2007-07-11 |
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| CN 200610157984 Pending CN1997085A (en) | 2006-12-22 | 2006-12-22 | A method for end release of the media gateway and a media gateway |
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| WO (1) | WO2008077335A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008077335A1 (en) * | 2006-12-22 | 2008-07-03 | Huawei Technologies Co., Ltd. | A method of a media gateway releasing an endpoint and the media gateway thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE10338055A1 (en) * | 2003-08-19 | 2005-03-17 | Siemens Ag | Dismantling of connections in communication networks |
| CN1281080C (en) * | 2004-06-08 | 2006-10-18 | 华为技术有限公司 | Method for realeasing terminal resource in media gateway |
| CN100461878C (en) * | 2005-06-17 | 2009-02-11 | 华为技术有限公司 | Method for realizing media gateway control protocol playback |
| CN100499834C (en) * | 2005-10-21 | 2009-06-10 | 华为技术有限公司 | Method of media gateway controller for controlling media gateway to play back audio |
| CN1997085A (en) * | 2006-12-22 | 2007-07-11 | 华为技术有限公司 | A method for end release of the media gateway and a media gateway |
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- 2006-12-22 CN CN 200610157984 patent/CN1997085A/en active Pending
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008077335A1 (en) * | 2006-12-22 | 2008-07-03 | Huawei Technologies Co., Ltd. | A method of a media gateway releasing an endpoint and the media gateway thereof |
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Open date: 20070711 |