CN101282495B - Medium gateway controller and medium gateway for telecommunication system as well as use method thereof - Google Patents
Medium gateway controller and medium gateway for telecommunication system as well as use method thereof Download PDFInfo
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- CN101282495B CN101282495B CN 200810090692 CN200810090692A CN101282495B CN 101282495 B CN101282495 B CN 101282495B CN 200810090692 CN200810090692 CN 200810090692 CN 200810090692 A CN200810090692 A CN 200810090692A CN 101282495 B CN101282495 B CN 101282495B
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Abstract
The invention relates to a method for media gateway controller of telecom system, the system includes a media gateway controller for implementing call control function and a media gateway for implementing bearing control function, the media gateway controller and the media gateway are separated by a vertical control protocol interface. The method comprises the following steps: sending a request for indication which represents capability for modifying the bearing characteristic by the media gateway; receiving the indication which represents whether to support modifying bearing established by the media gateway or not; confirming whether the modification of bearing characteristic is supported or not according to the received indication. The invention also relates to a corresponding media gateway controller, a correlative media gateway and a method thereof.
Description
The application is to be 2001.10.8, application number the dividing an application for the application for a patent for invention of " method and system of administer calls in telecommunication system " that be 01823867.X, denomination of invention the applying date.
Technical field
The present invention relates generally to telecommunication service, relate in particular to a kind of concrete system and method bearer properties, that calling is managed of relatively revising.
Background technology
Concerning the communication network framework, there is recently a kind of like this trend, that resolves into switching node CCF and bearer control function exactly.Those skilled in the art can understand, and multiple CCF and bearer control function all are known, and these functions can be realized by the computer software programs that reside in one or more nodes of telecommunication network.For switching node being resolved into CCF and bearer control function, need a kind of vertical control protocol, in order to communicate corresponding the calling between control and the bearer control function.An illustrative vertical control protocol is MGCP, and this agreement makes Media Gateway Controller carry out external control and management to media gateway.MGCP message is transmitted control and management information between MGC and MG.MG operates and the example of MG comprises the gateway of speech on the IP, gateway, pool of modem, cable modem and the set-top box of speech on the ATM at many service packet network edge usually.Call out control and bearer control function and be equally applicable to this situation, wherein CCF resides in Media Gateway Controller (MGC) or the call service of CSF, CSM or CSN and so on, and bearer control function then resides in media gateway (MG) or the bearer inter-working function of BIWF, BCF or BCU and so on.
Those skilled in the art it should also be understood that carrying is the connection of carrying the user plane information of certain calling.For instance, carrying can be that the ATM (asynchronous transfer mode) that a carry both voice is called out connects or IP (Internet protocol) connection that carry data is called out.In the example of the switching node that decomposes, this bearer control function is foundation, modification and the release that a calling comes the managing physical carrying.When setting up calling, this CCF request bearer control function is set up a calling with those carryings with the feature that satisfies call demand.Bearer properties then relates to the physical characteristic of this carrying, for example bandwidth, packetizing, packet size, type of coding or framing.
Might need or ask to go to revise a load characteristic in the call connection of having set up in the different time.Yet bearer control function is not supported bearer modification signalling usually, and if support bearer modification signalling, CCF normally not know this ability.In this respect, the ability of bearer control function refers to and the ability of carrying the bearer control protocol that is associated.For example, whether whether carrying makes its characteristic be modified or carry has dispose procedure, and these all depend on the ability of relevant bearer control function.No matter for which kind of reason; if relevant bearer control function can't be admitted a request of revising bearer properties, so usually can send one to the entity of realizing this CCF from the entity of realizing this bearer control function and show the error message that can't satisfy described request.
In existing system, the error message of making response from the request of the modification bearer properties of CCF is not indicated wrong definite reason usually.In some cases, bearer control function can support one to revise signaling protocol, but also can be for other former thereby send error message, for example congested.
In case receive error message from the entity of realizing bearer control function, then CCF can be connected by seeking to set up an alternate bearer with the alternate bearer with appropriate characteristic, revise request and attempt going to satisfy one.
Yet, with above-mentioned, the relevant time delay of process in the request of revising the bearer properties in the built vertical call connection is very large attempting satisfying, and owing to can't satisfy described modification request with interior in time-constrain, therefore described time delay has increased in fact overtime risk, and this will cause abandoning existing call connection.More examples of relevant this problem are the groupings that abandons or postpone, and produce thus mourning in silence or small static noise (clicking) of can discovering in calling.The not satisfied performance that all these impacts all can be facilitated this network.
Therefore, it will be understood by a person skilled in the art that the call connection for having set up, CCF can't be managed smoothly and effectively revising bearer properties with a reasonable probability that realizes modification in the required time constraint.
Summary of the invention
An object of the present invention is to improve or overcome one or more defective of the prior art.
Another object of the present invention provides a kind of improved system and method for the request of revising bearer properties being made response, thereby compare with method with existing system, described improvement makes it possible to make a judgement with higher efficient, the ability of the relevant request that will find out and/or realize of this judgement.
On the one hand, the invention provides a kind of in telecommunication system the method for administer calls, described system comprises a network, this network has at least one call controller of realizing CCF and at least one realizes the bearer controller of bearer control function, call controller is separated by a vertical control protocol interface with bearer controller, and described method comprises the steps:
An indication that shows the ability of this at least one bearer controller modification bearer properties is provided at least one message of transmitting in telecommunication system; And
Receive described indication and it is stored at least one call controller.
What preferably, described indication related to is bearer controller is revised bearer properties during the operational phase of calling out ability.After the operational phase of a calling is and connects between communication entity and at call release or the calling cycle before disconnect calling out.And described message can comprise a MGCP message.
In one embodiment, described message comprises an error code, and this error code represents that bearer controller do not revise the ability of bearer properties.In another embodiment, described message has comprised an attribute that defines in the protocol extension bag, and in addition in another embodiment, described message is to be called by an event that defines in the protocol extension bag.The protocol extension bag is existing telecom agreement is expanded in a permission by the new information unit that comprises this agreement concept.Described new information unit can be defined in independent agreement document.New information unit can be with an indentured part and information unit identity, and namely the attribute identity identifies.For example, H.248 agreement is a vertical control protocol that has comprised package definition.Event then is one, and wherein for instance, MGC sets described event in a MG at the trigger of the inner definition of bag, in order to indicate this MG to give notice to MGC when given event occurring.
In a preferred embodiment, can provide at any time described message, especially can during call setup or the operational phase of calling, provide described message.
In a preferred embodiment, the part of described message as the call control signalling rules can be provided, described call control signalling rules comprise a request of setting up carrying.Preferably, described message can be a radio access network control message.The radio access network control message can comprise a control message, and wherein said control message is at radio network controller (RNC) and reside in transfer control and management information between the MGC of mobile switching centre (MSC).An example that is fit to this radio access network control message is third generation universal mobile telephone system (UMTS), this system may comprise a core network (CN) and a UMTS radio access network (UTRAN), wherein CN has been resolved into MSC and a MG who comprises the MGC function.In this example, bearer connection is in the Iu of UTRAN interface, sets up between MG and RNC.
During the operational phase of a calling, call controller can receive a request of revising existing bearer properties.In this case, method of the present invention can also comprise further step:
For going to retrieve about bearer controller, the bearer controller of existing call revises the indication that the ability of described request is satisfied in bearer properties and trial;
When bearer controller has comprised the ability of a bearer characteristic modification signaling, call the bearer characteristic modification of an existing carrying;
When bearer controller does not comprise the ability of bearer characteristic modification signaling, call the foundation with alternate bearer of the bearer properties of asking.If can't satisfy the request of modification, so in one embodiment of the invention, method of the present invention also comprises transmits the step that a message is refused described modification request.
On the other hand, the invention provides a kind of telecommunication system, comprising a network, described network has at least one call controller of realizing CCF and at least one realizes the bearer controller of bearer control function, described call controller is separated by vertical control protocol interface with bearer controller, and described system can operate, during the call activity stage, revise the relevant information of the ability of bearer properties in order to the message of described internal system transmission, obtain with at least one bearer controller from least one, described system also can operate in addition, in order to receive a request of revising bearer properties during the operational phase of calling out, described system comprises:
First device is used for retrieving the described information of obtaining, and can satisfy this request in order to determine whether;
The second device is used for revising the existing bearer properties that carries when at least one bearer controller comprises the ability of bearer characteristic modification signaling; And
The 3rd installs, and has at least one carrying of a plurality of carryings of the bearer properties of asking for selection when at least one bearer controller does not comprise the ability of bearer characteristic modification signaling;
Wherein first device is firm determines to satisfy a request, just realizes described request with the second and the 3rd device.
On the other hand, the invention provides a Media Gateway Controller, wherein said Media Gateway Controller can operate, so that request is indicated and received indication from described media gateway, what wherein said indication represented is the ability that media gateway is made amendment to the characteristic of the carrying of its foundation.Described Media Gateway Controller also can operate in addition, in order to receive the request to an indication, what wherein said indication represented is the ability that media gateway is made amendment to the characteristic of the carrying of its foundation.What in a preferred embodiment, described indication related to is media gateway is revised bearer properties during the call activity stage ability.
In fact, the present invention comes from a kind of like this implementation, the wherein indication by provide bearer control function to revise the ability of bearer properties for CCF, and can in call manager, significantly improve efficient and the validity of CCF.
Significant advantage be by provide one show bearer control function revise bearer properties ability indication and receive and preserve this indication and realize in that CCF is inner.For instance, if need to revise bearer properties, so CCF can based on CCF current can with information come the ability that satisfies this requirement is assessed.In the 3GPP network, usually request be one to the modification of bearer properties, for instance, described bearer properties is voice/facsimile function alternately.The indication of the ability by the bearer properties that bearer control function revises voice/fax and so on is provided for CCF just provides the ability that this modification of bearer properties is managed in control hierarchy for CCF.For bearer characteristic modification, more effective and more effective request management should reduce the possibility that abandons calling and improve therefrom network performance comprehensively.
One embodiment of the present of invention relate to a kind of in telecommunication system the method for administer calls, described system comprises a network, this network has at least one call controller of realizing CCF and at least one realizes the bearer controller of bearer control function, described call controller is separated by a vertical control protocol interface with described bearer controller, said method comprising the steps of: an indication is provided at least one message of transmitting in this telecommunication system, and what described indication represented is the ability that at least one bearer controller is revised bearer properties; And receive described indication and it is stored at least one call controller.
Preferably, described indication relates to this at least one bearer controller is revised bearer properties during the operational phase of calling out ability.
Preferably, described message is a MGCP message.
Preferably, described message comprises an error code, and described error code shows that this at least one bearer controller do not revise the ability of bearer properties.
Preferably, described message is to be called by an event that defines in the protocol extension bag.
Preferably, described message comprises an attribute that defines in the protocol extension bag.
Preferably, described message provides during call setup.Here, according to an embodiment, described message can be contained in the call control signalling rules, and described call control signalling rules comprise a request of setting up carrying.Message described here can be a radio access network control message.
Preferably, described message is to provide during the operational phase of calling out.
Preferably, during the operational phase of calling out, receive a request of revising existing bearer properties by call controller, described method is further comprising the steps of: satisfy the indication of the ability of described request about that bearer controller modification bearer properties and trial for the bearer controller retrieval of existing call; When bearer controller comprises the bearer characteristic modification signalling capability, call the modification of a bearer properties of this existing carrying; When bearer controller does not comprise the bearer characteristic modification signalling capability, call the foundation of the alternate bearer with the bearer properties of asking.Here advantageously, if can not satisfy described request, then transmit the message of a rejecting said request.
Another embodiment of the present invention relates to a kind of telecommunication system, comprise a network, described network has at least one call controller of realizing CCF and at least one realizes the bearer controller of bearer control function, described call controller is separated by vertical control protocol interface with bearer controller, described system can operate, so that at least one message of transmitting in the described system is obtained with this at least one bearer controller and revise the relevant information of the ability of bearer properties during the operational phase of calling out, described system also can operate in addition, in order to receive a request of during the operational phase of calling out, revising bearer properties, described system comprises: first device, be used for retrieving the described information of obtaining, can satisfy described request in order to determine whether; The second device is used for revising an existing bearer properties that carries when at least one bearer controller comprises the ability of bearer characteristic modification signaling; And the 3rd device, be used for when at least one bearer controller does not comprise the ability of bearer characteristic modification signaling, selecting having at least one carryings of a plurality of carryings of desired bearer properties; Wherein said first device is firm to be determined to satisfy a request, just satisfies described request with the second and the 3rd device.
The invention still further relates to a kind of Media Gateway Controller, wherein said Media Gateway Controller can operate, so that request indication and receive indication from least one media gateway, ability that to be this at least one media gateway make amendment to the characteristic of the carrying of being set up by this at least one media gateway that described indication represents.
Preferably, described Media Gateway Controller can operate, in order to receive the request to an indication, and ability that to be this at least one media gateway make amendment to the characteristic of the carrying of being set up by this media gateway that described indication represents.
Preferably, described indication relates to this at least one media gateway is revised bearer properties during the operational phase of calling out ability.
Preferably, described indication is transmitted in message, and described message comprises an error code, and what described error code represented is that this at least one media gateway does not have ability to revise the characteristic of the carrying of being set up by described at least one media gateway.
Preferably, indication is transmitted in message, and described message is to be called by the event that defines in the protocol extension bag.
Preferably, indication is transmitted in message, and described message comprises an attribute that defines in the protocol extension bag.
Description of drawings
For a person skilled in the art, by the following written description that is combined with accompanying drawing, these and other feature and advantage of one or more preferred embodiments of the present invention will be apparent, wherein:
Fig. 1 provides a schematic diagram that separates switching node that is divided into Media Gateway Controller and media gateway;
Fig. 2 schematically describes according to prior art systems and issues the bearer characteristic modification request and produce error message from bearer control function;
Fig. 3 schematically describes an example of illustration call message flow, wherein shown according to the preferred embodiment of the present invention and when set up calling out to revising request and the reception of allowed event (Allowed Event);
Fig. 4 schematically describes an illustration call message flow, has wherein shown according to a further advantageous embodiment of the invention, after setting up carrying modification has been allowed request and the reception of attribute;
Fig. 5 schematically describes an illustration call message flow, has wherein shown the reception of error code according to a further advantageous embodiment of the invention;
Fig. 6 schematically describes an illustration call message flow, request and the reception of wherein shown according to a further advantageous embodiment of the invention, after setting up carrying (Modification Allowed) allowed in the modification in the call control message.
Fig. 7 schematically describes an illustration call message flow, request and the reception of wherein shown according to a further advantageous embodiment of the invention, after the carrying of being set up carrying by another network entity is set up the modification in the call control message being allowed.
Embodiment
With reference to figure 1, wherein provide a schematic diagram that is divided into the decomposition switching node of Media Gateway Controller and media gateway.In the example of Fig. 1, there are two entities of realizing CCF, i.e. media gateway controller MGC 1 and MGC2, and two entities of realizing bearer control function, i.e. media gateway MG1 and MG2.A carrying that resides between these two media gateway MG1 and the MG2 has also been described among this external Fig. 1, and the link 10,12 between corresponding Media Gateway Controller and its media gateway, described media gateway is provided for betwixt the communication carried out according to MGCP or vertical control protocol H.248 and so on.
With reference to figure 2, wherein schematically describe one of issue and revise the request of bearer properties and produce an error message there from media gateway.In the example of Fig. 2, H.248/Megaco foundation, modification and releasing bearing are realized via MGCP.Other examples that can be applicable to equally the vertical control protocol of this signaling are internet equipment control protocol IDCP or MGCP agreement.Usually, Media Gateway Controller (MGC) is not also known bearer control protocol, even and this information be known to this controller, it is usually and do not know the definite version of used bearer control protocol.Therefore, in existing system, if bearer properties is revised in the controller request, so usually can produce an error message.
For instance, when the switching of ATM Adaptation Layer and signaling protocol Q.AAL2 CS1 when media gateway (MG) is carried out, so above-mentioned situation will appear, because this agreement is not supported bearer modification signalling.Yet if implement Q.AAL2CS2 in media gateway (MG), so, described request will successfully be received, because the 2nd edition of this agreement supported bearer modification signalling.Although ATM switches and the 2nd edition of signaling protocol supported bearer modification signalling, receiving an error message that represents the bearing modification failure of asking will not indicate described mistake not produce because of not supporting bearer modification signalling to Media Gateway Controller.So, no matter what wrong reason is, Media Gateway Controller all can be taken action when receiving common fault, and usually will disconnect this calling.
Fig. 3 has shown illustration call message flow in accordance with a preferred embodiment of the present invention, has wherein shown when setting up calling revising request and the reception of allowed event.Receive a call control message at MGC, a new calling is set up in request.Then, MGC is by asking MG1 to set up a new bearer connection with an ADD.request message.In this example, MGC serves as a call controller and MG1 serves as a bearer controller.In identical message, MGC asks an event, so that MG can indicate whether to allow to revise bearer properties.MG1 then transmits to set up a carrying with Bearer Control message.When receiving the affirmation of carrying foundation, MG1 will send one to MGC and show the notification message that whether can revise bearer properties.Described MGC will store this indication, in order to use in the time after a while.
Receive one show the call control message that revise this bearer properties in, MGC can check the indication of storage, and then then carries out one of following operation:
1. if do not support bearer characteristic modification-MGC by refuse this call control modification with call control signalling.
2. if support bearer characteristic modification-MGC by asking MG1 to remove to revise bearer properties with a MOD.request.Then, MG1 revises this bearer properties with applicable bearer control signalling.
3. if do not support bearer characteristic modification but have the alternate bearer can be with-MGC by asking MG1 to go to set up a new bearer connection with an ADD.request message.In this case, MG1 transmits to set up a carrying with Bearer Control message.Then, MGC is by asking MG1 to remove the carrying of previous foundation with a Sub.request message.This removes message and just causes bearer control release message, or a message request before sub.request message sends bearer control release message.
What Fig. 4 showed is an illustrative call message flow, has wherein shown setting up request and the reception that attribute is allowed in the modification of carrying out after the carrying according to the preferred embodiments of the present invention.Receive one at MGC and show the call control message that set up a new calling.Then, this MGC is by asking MG1 to set up a new bearer connection with an ADD.request message.Equally, for this example, MGC serves as a call controller and MG1 serves as a bearer controller.In identical message, MGC asks an event, so that MG1 can represent when set up carrying.MG1 then transmits to set up a carrying with Bearer Control message.In case receive the affirmation of setting up carrying, then MG1 will send one to MGC and show the notification message of having set up carrying.
One receives the notice of having set up carrying or after this, MGC will send one with revising the MOD.request that confirms attribute, requires the MG1 to select for it a value.Then, MG1 determines whether to revise bearer properties and return appropriate value (being/no) in MOD.response message.Described MGC will preserve this indication, in order to using in the future.
Receiving one when showing the call control message that revise bearer properties, MGC checks the indication of storing, and then carries out one of following action:
1. if do not support bearer characteristic modification-MGC by refuse this call control modification with call control signalling.
2. if support bearer characteristic modification-MGC by asking MG1 to remove to revise bearer properties with a MOD.request.Then, MGC revises this bearer properties on request with applicable bearer control signalling.
3. if do not support bearer characteristic modification but have the alternate bearer can be with-MGC by asking MG1 to set up a new bearer connection with an ADD.request message.In this case, MG1 transmits to set up a carrying with Bearer Control message.Then, MGC asks MG1 to remove the carrying of previous foundation with a Sub.request message.This removes message and causes bearer control release message, and perhaps a message request before sub.request message sends bearer control release message.
Fig. 5 has shown an illustrative call message flow, has wherein shown the reception of the error code that carries out according to the preferred embodiments of the present invention.Receive one at MGC and show the call control message that set up a new calling.Then, MGC is by asking MG1 to set up a new bearer connection with an ADD.request message.Again, MGC serves as call controller and MG1 serves as bearer controller.MG1 transmits to set up a carrying with Bearer Control message.
Receiving one when showing the call control message that revise bearer properties, MGC is by asking MG1 to revise bearer properties with MOD.request.
1. if support that bearer characteristic modification-then MG1 refuses described message with an error code that shows " do not allow and carry out bearer characteristic modification ", and in a MOD.reply message the described error code of transmission.
2. if do not support that bearer characteristic modification-MG1 revises bearer properties on request with applicable bearer control signalling so.
If receive an error code, show that bearer characteristic modification is not the ability of MG1, but have an alternate bearer can with-then MGC is by asking MG to set up a new bearer connection with an ADD.request message.MG1 transmits to set up a new bearer with a Bearer Control message.Then, MGC will ask MG1 to remove the carrying of previous foundation with a Sub.request message.This removes message and causes bearer control release message, and perhaps a message request before sub.request message sends bearer control release message.
What Fig. 6 showed is an illustrative call message flow, request and the reception of wherein shown according to a preferred embodiment of the invention, after setting up carrying the modification in the call control message being allowed.Receive one at MGC and shown the call control message that set up a new calling.Then, MGC asks MG1 to set up a new bearer connection with an ADD.request message.Here, MGC serves as call controller and MG1 serves as bearer controller again.MG1 then transmits to set up a carrying with Bearer Control message.
Receiving one when showing the call control message that revise bearer properties, MGC checks that in the call control message of storing the bearer characteristic modification of storing allows indication, and then carries out one of following operation:
If 1. do not support bearer characteristic modification-then MGC by refuse the call control modification request with call control signalling.
If 2. support bearer characteristic modification-then MGC by ask MG1 modification bearer properties with a MOD.request message.Then MGC revises this bearer properties on request with applicable bearer control signalling.
3. if do not support bearer characteristic modification, but have an alternate bearer can with-then MGC is by asking MG1 to set up a new bearer connection with an ADD.request message.MG1 transmits to set up a carrying with Bearer Control message.Then, MGC asks MG1 to remove the carrying of previous foundation with a Sub.request message.This removes message and causes bearer control release message, and perhaps a message request before sub.request message sends bearer control release message.
Fig. 7 schematically describes an illustrative call message flow, what wherein show is request and the reception of after setting up carrying the modification in the call control message being allowed, is to be set up by another network entity that resides in the node that is different from MG1 in carrying described in this carrying foundation.Especially, in Fig. 7, carrying is at the process call control signalling, is set up by another network entity under from the request of call control server, and an alternative embodiment of the invention has been described in described carrying.
With reference to figure 7, receive one at MGC and show the call control message that set up a new calling.Then, MGC connects by prepare a new bearer with an ADD.request message.Afterwards, MGC asks to set up described carrying by another network node through a call control protocol.In the response that the request of setting up carrying is made, one can will turn back to MGC to the indication that bearer properties carries out subsequent modification about whether.
Receiving one when showing the call control message that revise bearer properties, MGC allows that to the bearing modification that returns indication checks in call control message when carrying is set up, and then carry out one of following operation:
If 1. do not support bearer characteristic modification-then MGC by refuse this call control modification with call control signalling.
If 2. support bearer characteristic modification-then MGC by asking MG1 to revise this bearer properties with a MOD.request message.As selection, MGC asks another network node to carry out bearer characteristic modification with appropriate call control signalling.
3. if do not support bearer characteristic modification, but have an alternate bearer can with-then MGC is by asking MG1 to prepare a new bearer connection with an ADD.request message.Then, MGC asks from another network node new bearer connection endpoint to be carried out bearer characteristic modification through call control signalling.Subsequently, described MGC is with an end points that removes previous foundation in this Sub.request message that does not describe in detail.This removes message and causes bearer control release message, and perhaps a message request before sub.request message sends bearer control release message.
It should be understood that the preferred embodiment of describing is not limited to the message that those can be used for providing the indication of the ability that shows bearer controller modification bearer properties in Fig. 3 to 7.For instance, can in a MOV.request rather than MOD.request, ask to revise bearer properties, and can be in MOD.req rather than ADD.req for the request of an indication.
Embodiments of the invention are suitable for fixing and/or mobile communication system, are particularly suitable for the third generation or 3GPP network that those meet ETSI 3GPP R4 Standard Edition.
Owing to can in the situation of the spirit that does not break away from essential characteristic of the present invention, realize the present invention in several mode, therefore it should be understood that, unless otherwise mentioned, otherwise above-described embodiment is not limited the present invention, but should the spirit and scope of the present invention of claims definition with interior it is carried out bright in a broad sense.Expect in addition multiple modification and equivalence are included in the spirit and scope of the present invention and claims.
Claims (16)
1. the method in the Media Gateway Controller of telecommunication system, described system comprises the Media Gateway Controller of realizing CCF and the media gateway that realizes bearer control function, described Media Gateway Controller is separated by a vertical control protocol interface with described media gateway, it is characterized in that following steps:
Send the request that is used for the request indication, what described indication represented is the ability that described media gateway is revised bearer properties;
Receive to be used for expression and whether to support to revise the indication of the carrying that described media gateway sets up; And
Determine according to the indication that receives whether the modification of described bearer properties is supported.
2. the method for claim 1, wherein said request is sent out in ADD.request or MOD.request.
3. method as claimed in claim 1 or 2, the indication of wherein said reception is comprised among ADD.response or the MOD.response.
4. method as claimed in claim 1 or 2 comprises step: receive the bearing modification request that is used for the described carrying of request modification.
5. method as claimed in claim 4, wherein institute's determining step comprises:
The indication of storing received in described Media Gateway Controller, and
Check stored indication in response to the bearing modification request.
6. method as claimed in claim 4 comprises step: in response to the bearing modification request that receives, revise described bearer properties if determine support according to the indication that receives, then revise described carrying from described media gateway request.
7. method as claimed in claim 4 comprises step: in response to the bearing modification that receives, do not support to revise described bearer properties if determine according to the indication that receives, then refusal is revised described carrying.
8. method as claimed in claim 4 comprises step: in response to the bearing modification that receives,
If-determine according to the indication that receives and not support to revise described bearer properties, then determined whether the alternative bearer method, if alternative bearer is arranged, then set up the carrying that described alternative bearer and release characteristics can not be modified from described media gateway request.
9. the Media Gateway Controller of telecommunication system, described system comprises the Media Gateway Controller of realizing CCF and the media gateway that realizes bearer control function, described Media Gateway Controller is suitable for being separated by a vertical control protocol interface in described system with described media gateway, it is characterized in that described Media Gateway Controller comprises:
Be used for sending the device of the request of asking indication, what described indication represented is the ability that described media gateway is revised bearer properties;
Be used for receiving the device of indication, described indication is whether to support to revise the carrying that described media gateway is set up for expression; And
Be used for determining the device whether modification of described bearer properties is supported according to the indication that receives.
10. Media Gateway Controller as claimed in claim 9 comprises for receiving being used for the device that the bearing modification request of described carrying is revised in request.
11. such as claim 9 or 10 described Media Gateway Controllers, wherein definite device comprises:
Be used for the device in the indication of described Media Gateway Controller storing received, and
Be used for checking in response to the bearing modification request device of stored indication.
12. such as claim 9 or 10 described Media Gateway Controllers, comprise that device is used for: in response to the bearing modification request that receives, revise described bearer properties if determine support according to the indication that receives, then revise described carrying from described media gateway request.
13. such as claim 9 or 10 described Media Gateway Controllers, comprise that device is used for: in response to the bearing modification that receives, do not support to revise described bearer properties if determine according to the indication that receives, then refusal is revised described carrying.
14. such as claim 9 or 10 described Media Gateway Controllers, comprise that device is used for: in response to the bearing modification request that receives, do not support to revise described bearer properties if determine according to the indication that receives, then determined whether the alternative bearer method,
Comprise that also device is used for: if alternative bearer is arranged, then set up the carrying that described alternative bearer and release characteristics can not be modified from described media gateway request.
15. the method in the media gateway of telecommunication system, described system comprises the Media Gateway Controller of realizing CCF and the media gateway that realizes bearer control function, described Media Gateway Controller is separated by a vertical control protocol interface with described media gateway, comprise the step of setting up carrying, characterized by further comprising following steps:
Receive to be used for the request of request indication, what described indication represented is the ability that described media gateway is revised bearer properties, this carrying by or to be set up by described media gateway;
Send to be used for expression and whether to support to revise the indication of the carrying that described media gateway sets up.
16. the media gateway of telecommunication system, described system comprises the Media Gateway Controller of realizing CCF and the media gateway that realizes bearer control function, described Media Gateway Controller is separated by a vertical control protocol interface with described media gateway, it is characterized in that described media gateway comprises:
Be used for to receive the device of the request of request indication, what described indication represented is the ability that described media gateway is revised bearer properties, this carrying by or to be set up by described media gateway; With
Be used for sending the device of indication, this indication is whether to support to revise the carrying that described media gateway is set up for expression.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0029273A GB0029273D0 (en) | 2000-11-30 | 2000-11-30 | Acoustic control system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01823867XA Division CN100459722C (en) | 2001-10-08 | 2001-10-08 | Method and system for managing call in telecommunication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101282495A CN101282495A (en) | 2008-10-08 |
| CN101282495B true CN101282495B (en) | 2013-02-06 |
Family
ID=9904213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810090692 Expired - Fee Related CN101282495B (en) | 2000-11-30 | 2001-10-08 | Medium gateway controller and medium gateway for telecommunication system as well as use method thereof |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101282495B (en) |
| ES (1) | ES2367476T3 (en) |
| GB (1) | GB0029273D0 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1102523A (en) * | 1993-06-23 | 1995-05-10 | 美国电话电报公司 | Telecommunications network architecture and system |
| CN1171187A (en) * | 1994-11-21 | 1998-01-21 | 诺基亚电信公司 | Digital mobile communications system |
-
2000
- 2000-11-30 GB GB0029273A patent/GB0029273D0/en not_active Ceased
-
2001
- 2001-10-08 CN CN 200810090692 patent/CN101282495B/en not_active Expired - Fee Related
- 2001-11-30 ES ES01999053T patent/ES2367476T3/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1102523A (en) * | 1993-06-23 | 1995-05-10 | 美国电话电报公司 | Telecommunications network architecture and system |
| CN1171187A (en) * | 1994-11-21 | 1998-01-21 | 诺基亚电信公司 | Digital mobile communications system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101282495A (en) | 2008-10-08 |
| GB0029273D0 (en) | 2001-01-17 |
| ES2367476T3 (en) | 2011-11-03 |
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