CN102137510B - Method and device for load bearing modification - Google Patents
Method and device for load bearing modification Download PDFInfo
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- CN102137510B CN102137510B CN2010106128744A CN201010612874A CN102137510B CN 102137510 B CN102137510 B CN 102137510B CN 2010106128744 A CN2010106128744 A CN 2010106128744A CN 201010612874 A CN201010612874 A CN 201010612874A CN 102137510 B CN102137510 B CN 102137510B
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Abstract
The invention discloses a method and a device for load bearing modification, wherein the method comprises that the steps: when load bearing modification is informed of being needed, the current ongoing business is kept, and load bearing releasing request information is sent to another network device, and is used for indicating that another network device releases the set load bearing; and when another network device releasing the set load bearing is informed, load bearing establishing request information is sent to another network device, and includes that load bearing information after beingmodified so as to indicate that another network device establishes load bearing according to the modified load bearing information. The embodiment of the invention can ensure that an end-to-end support can be achieved when in load bearing modification.
Description
Technical field
The present invention relates to the network communications technology, relate in particular to a kind of bearing modification method and apparatus.
Background technology
Enter stable state in the 3G call establishment or behind the 3G call through, calling might trigger bearing modification as required.Wherein, in call establishment, may be that the Calling Side carrying is set up prior to callee side, but operate in order to reach codec-independent (Transcoder Free Operation, TrFO), after the carrying of callee side is set up and is finished, by signaling the beared information back transfer is arrived Calling Side, trigger the bearing modification of Calling Side, make whole process use identical bearing parameter, thereby reach TrFO.Behind call through, may be because business change causes carrying to need to revise.
Existing bearing modification standard agreement requirements of process node support end to end, and the flow process that relates to is complicated, for example, subscriber equipment (User Equipment, UE), wireless access network (Radio Access Network, RAN) base station of side (NodeB) and radio network controller (Radio Network Controller, RNC) and core net (Core Network, CN) Mobile Switching Center Server of side (Mobile Switch Center Server, MSC-S) and media gateway (Media Gateway, MGW), all need to support standard agreement.
But, in actual applications, might have the part network element and not reach requirement, especially the network element of RAN side and UE not exclusively support 3G bearing modification standard agreement probably, thereby can not support the bearing modification of 3G, therefore to carrying out the 3G business certain constraint are arranged.
Summary of the invention
The embodiment of the invention provides a kind of bearing modification method and apparatus, realizes that end-to-end node is to the support of 3G bearing modification.
The embodiment of the invention provides a kind of bearing modification method, comprising:
Know need to revise carrying after, keep current calling, and send carrying to another network equipment and discharge request message, described carrying discharges request message and is used to indicate described another network equipment and discharges the carrying of having set up;
After knowing that described another network equipment discharges the carrying of having set up, send carrying to another network equipment and set up request message, described carrying is set up and is carried amended beared information in the request message, sets up carrying to indicate described another network equipment according to described amended beared information.
The embodiment of the invention provides a kind of bearing modification equipment, comprising:
The carrying release module, be used for know need to revise carrying after, keep current calling, and send carrying to another network equipment and discharge request message, described carrying discharges request message and is used to indicate described another network equipment and discharges the carrying of having set up;
Module is set up in carrying, be used for after knowing that described another network equipment discharges the carrying of having set up, send carrying to another network equipment and set up request message, described carrying is set up and is carried amended beared information in the request message, sets up carrying to indicate described another network equipment according to described amended beared information.
As shown from the above technical solution, the embodiment of the invention is set up the alternative existing bearing modification flow process of flow process by discharge flow process and carrying with carrying, can realize complicated flow process with simple process flow, avoid existing equipment to the not support issue of standard bearing modification.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done an introduction simply in will describing embodiment below, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the method flow schematic diagram of first embodiment of the invention;
Fig. 2 is the method flow schematic diagram of second embodiment of the invention;
Fig. 3 is the method flow schematic diagram of third embodiment of the invention;
Fig. 4 is the device structure schematic diagram of fourth embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
In 3GPP, defined RAB (Radio Access Bearer, three kinds of operations of assignment message RAB): carrying foundation (RAB setup), bearing modification (RAB modify) and carrying release (RAB release).In these three kinds of operations, carrying is set up and carrying release is basic manipulation mode, and bearing modification is the operation of the higher level that occurs along with the development of 3G network, and its requirement to system is the highest, needs UE, NodeB, RNC, MSC all to need to support standard bearing modification flow process.But because the quantity of RAN side network element and UE is more, and this part node exists substep to build the scene of progressively evolution, particularly, may have the UE of various version.Therefore, there is uneven situation in the support of the network element of RAN side and the agreement of UE, and part of nodes is not supported standard bearing modification flow process probably.
Therefore, the main thought of the embodiment of the invention is to set up flow process alternative bearer modification process in the RAN side with carrying release flow process and carrying, does not support the problem of the bearing modification flow process of standard to avoid part of nodes.
Fig. 1 is the method flow schematic diagram of first embodiment of the invention, comprising:
Step 11: core network element know need to revise carrying after, keep current calling, and send carrying to another network equipment and discharge request message, described carrying discharges request message and is used to indicate described another network equipment and discharges the carrying of having set up.
Wherein, current calling (call) corresponding service can be speech business, also can be data service.The embodiment of the invention can be applied to the scene that signaling plane separates with loading end, under this scene, the embodiment of the invention is just made amendment to the carrying flow process, do not make amendment for calling out the signaling process that adopts, can keep original calling of having set up like this, guarantee unbrokenly simultaneously carrying to be made amendment calling out.
For example, carrying may be revised in the call establishment, perhaps, in calling is carried out, also carrying may be revised.
Particularly, as, in call establishment, when calling party and callee's encoding and decoding were inconsistent, knowing needed to revise carrying; Perhaps, receive that subscriber equipment sends be used for revising professional message the time, knowing needs to revise carrying.
In addition, especially, because core network element is higher to the support of normal process usually, and the Access Network side is relatively poor to the support of standard agreement, and therefore, in the embodiment of the invention, this another network equipment can be in particular access network control equipment.Certainly, the embodiment of the invention also can be applied between the core network element, so this another network equipment also can be another core network element.
Step 12: core network element is after knowing that described another network equipment discharges the carrying of having set up, send carrying to described another network equipment and set up request message, described carrying is set up and is carried amended beared information in the request message, sets up carrying to indicate described another network equipment according to described amended beared information.
For example, receive described access network control equipment after carrying discharges successfully, when the carrying corresponding with described carrying release request message of transmission discharges response message, know that described access network control equipment discharges the carrying of having set up.
In addition, when needing to revise carrying in call establishment, this amended beared information can be the coding/decoding information of callee's correspondence; When in calling is carried out, needing to revise carrying, this amended beared information can for amended professional corresponding bearing capacity (Bearer capability, BC).
Present embodiment can be applied in the 3G network, and in 3G network, this core network element can be MSC or MSC-S, and the access network control equipment in the present embodiment can be RNC.Certainly, the embodiment of the invention also is not limited to 3G network, can adopt corresponding access network control equipment and core network element for other networks, for example, (this access network control equipment is evolution base station (eNodeB) for Long Term Evolution, LTE) system for Long Term Evolution, this core network element be mobile management entity (Mobile Management Entity, MME).
Present embodiment is set up the alternative existing bearing modification flow process of flow process by discharge flow process and carrying with carrying, can realize complicated flow process with simple process flow, avoid existing equipment to the not support issue of standard bearing modification.In addition, present embodiment carries out bearing modification on the basis that keeps current calling, can avoid the interruption of current calling, and the speed of setting up of corresponding service reduces the influence that time-delay is experienced the user behind the raising bearing modification.
Carry out because bearing modification may occur in call setup the time, also may occur in to call out, therefore, describe the flow process under the corresponding above-mentioned situation below respectively.
Fig. 2 is the method flow schematic diagram of second embodiment of the invention, and present embodiment need be revised during with call setup and be carried as example.In the present embodiment, suppose that the encoding and decoding tabulation that the calling party supports is x, w, v, y, z, the encoding and decoding tabulation that the callee supports is v, x, z.When the calling party makes a call, at first adopt x to set up carrying.Afterwards, when setting up carrying with the callee, the encoding and decoding of callee's first-selection are v.(v) encoding and decoding (x) corresponding with the carrying of having set up are different because the encoding and decoding of following adopted, and, under the scene of TrFO, owing to need to avoid using encoding and decoding conversion (Transcoder) among the TrFO as far as possible, therefore the carrying that needs change to set up is corresponding with v with bearing modification.
Referring to Fig. 2, present embodiment comprises:
Step 21: calling party UE adopts encoding and decoding x and calling party RNC and calling side MSC to set up carrying.
The concrete process of setting up carrying can adopt common carrying to set up flow process and realize.
Step 22: calling side MSC sends initial address message to the callee, and (Initial Address Message IAM), wherein carries encoding and decoding tabulation available codec list=x, w, v, y, z that the calling party supports.
If calling party UE is positioned under the administration of different MSC with callee UE, then this callee can be specially callee MSC; If calling party UE and callee UE are positioned under the administration of same MSC, then this callee can be specially callee RNC.
Step 23: the callee selects encoding and decoding in this encoding and decoding tabulation, and the encoding and decoding that will select are carried at application transport mechanism, and (Application Transport Mechanism APM) returns to calling side MSC in the message.
For example, the encoding and decoding tabulation that the callee supports is supported codec list=v, x, z, and the priority of v is the highest, and then the encoding and decoding of this selection are v.
Step 24: calling side MSC is revised as v with end office's encoding and decoding.
Wherein, this step refers to that mainly MSC indication MGW revises the bearing resource on the MGW, owing to need to revise synchronously on the whole bearer channel during bearing modification end to end, therefore, also need on the MGW to need to revise carrying.
Step 25: calling side MSC sends the message that is used for releasing bearing to calling party RNC, i.e. carrying discharges request message, for example assignment message ASSIGNMENT REQ (RAB Release).
Step 26: calling party RNC discharges the carrying of having set up, and sends and the message corresponding response message that is used for releasing bearing, for example ASSIGNMENTREQ RSP to calling side MSC after release.
Step 27: calling side MSC sends the message that is used for setting up carrying to calling party RNC, i.e. request message is set up in carrying, wherein carries amended encoding and decoding v.
For example, should be used for set up carrying message can for ASSIGNMENT REQ (RAB SETUP Non-Access Stratum (and Non-Access Stratum, NAS) synchronously sign (NAS Synchronization Indicator, NSI)=v).
Step 28: calling party RNC sends and the message corresponding response message that should be used for the foundation carrying, for example ASSIGNMENT REQ RSP to calling side MSC.
Step 29: the calling party communicates by letter by newly-established carrying with the callee.
Certainly, be understandable that, set up the step that can also comprise other in the process in actual call, these other step can be referring to common call setup flow process.
Present embodiment is by after need revising carrying when the call setup, releasing bearing at first, adopt new encoding and decoding to set up carrying afterwards, substitute existing modification process by discharging flow process and newly-built flow process, because carrying foundation and carrying release are the basic functions that the equipment of communication system has, therefore, can reduce the requirement to equipment, realize the support to bearing modification smoothly.
Fig. 3 is the method flow schematic diagram of third embodiment of the invention, needs during present embodiment carries out with calling to revise to be carried as example.In the present embodiment, suppose at first to set up professional～1 between calling UE and the called UE, afterwards, behind certain hour, calling UE wishes business～2 are revised as in business～1, and for example, UE at first carries out video call service, and follow-up needs carry out voice calling service.Because different business needs different carryings, need to revise carrying this moment.In addition, different professional corresponding carryings can characterize with BC, namely ask the different BC differences of correspondence when professional, and network element also can be set up different bearer according to different BC.Referring to Fig. 3, present embodiment comprises:
Step 31: the calling party adopts BC～1 and callee to set up carrying, carries out and BC～1 corresponding service.
The concrete process of setting up carrying can adopt common carrying to set up flow process and realize.
Step 32: when the calling party need change business, calling party UE sent to calling side MSC by calling party RNC and revises (MODIFY) message, wherein carried amended professional corresponding BC, was assumed to be BC～2.
Step 33: calling side MSC and callee carry out the bearing modification flow process.
Wherein, because the negligible amounts of core network element is higher to the support of agreement, therefore can think that core network element is the bearing modification flow process of support standard, therefore, between calling party and callee's core network element, can adopt common standard bearing modification flow process.This step can realize the bearing modification on calling side MSC and callee's the core net gateway.
For then adopting the elder generation shown in the embodiment of the invention to discharge the flow process of setting up again between core net and Access Network and the UE.Be example explanation modification process below with calling party, the modification process between callee's core net and Access Network and the UE can be consulted and carried out.
Certainly, also can adopt the elder generation shown in the embodiment of the invention to discharge the modification process of setting up again between the core network element.
Step 34: calling side MSC sends the message that is used for releasing bearing to calling party RNC, i.e. carrying discharges request message, for example assignment message ASSIGNMENT REQ (RAB Release).
Step 35: calling party RNC discharges the carrying of having set up, and sends and the message corresponding response message that is used for releasing bearing, for example ASSIGNMENTREQ RSP to calling side MSC after release.
Step 36: calling side MSC sends the message that is used for setting up carrying to calling party RNC, i.e. request message is set up in carrying, wherein carries amended service attribute BC～2.
For example, should be used for setting up the message of carrying and to be ASSIGNMENT REQ (RAB SETUP BC～2).
Step 37: calling party RNC sends and the message corresponding response message that should be used for the foundation carrying, for example ASSIGNMENT REQ RSP to calling side MSC.
Step 38: the calling party communicates by letter by newly-established carrying with the callee, for example, carries out and BC～2 corresponding service.
Certainly, be understandable that, carry out can also comprising in the process other step in actual call, these other step can be carried out flow process referring to common calling.
Present embodiment is by after need revising carrying when calling is carried out, releasing bearing at first, adopt new BC to set up carrying afterwards, substitute existing modification process by discharging flow process and newly-built flow process, because carrying foundation and carrying release are the basic functions that the equipment of communication system has, therefore, can reduce the requirement to equipment, realize the support to bearing modification smoothly.
Fig. 4 is the device structure schematic diagram of fourth embodiment of the invention, comprises that carrying release module 41 and carrying set up module 42; Carrying release module 41 be used for know need to revise carrying after, keeps current business of carrying out, and sends carrying to another network equipment and discharge request message, described carrying discharges request message and is used to indicate the carrying that described another network equipment release has been set up; Carrying is set up module 42 and is used for after knowing that described another network equipment discharges the carrying of having set up, send carrying to another network equipment and set up request message, described carrying is set up and is carried amended beared information in the request message, sets up carrying to indicate described another network equipment according to described amended beared information.
Wherein, this equipment can be the core network mobility management equipment, and this another network equipment can be access network control equipment, and for example, this equipment is MSC, MSC-S, and this access network control equipment is RNC; Perhaps, this equipment is eNodeB, and this access network control equipment is MME.
Can be, described current business of carrying out be call business, and described carrying release module 41 specifically is used at call establishment, and when calling party and callee's encoding and decoding were inconsistent, knowing needed to revise carrying.Described carrying is set up carrying that module 42 sends and is set up the described amended beared information that carries in the request message and be: the coding/decoding information of callee's correspondence.
Also can be, described carrying release module 41 is concrete to be used for receiving that subscriber equipment sends when being used for revising professional message, and knowing needs to revise carrying.Described carrying is set up carrying that module 42 sends and is set up the described amended beared information that carries in the request message and be: amended professional corresponding BC.
In addition, module 42 is set up in described carrying can specifically be used for receiving described another network equipment after carrying discharges successfully, when the carrying corresponding with described carrying release request message that sends discharges response message, know that described another network equipment discharges the carrying of having set up.
Present embodiment is set up the alternative existing bearing modification flow process of flow process by discharge flow process and carrying with carrying, can realize complicated flow process with simple process flow, avoid existing equipment to the not support issue of standard bearing modification.In addition, present embodiment carries out bearing modification on the basis that keeps current calling, can avoid the interruption of current calling, and the speed of setting up of corresponding service reduces the influence that time-delay is experienced the user behind the raising bearing modification.
Be understandable that the reference mutually of the correlated characteristic in said method and the equipment.In addition, " first " in above-described embodiment, " second " etc. are for each embodiment of differentiation, and do not represent the quality of each embodiment.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (14)
1. a bearing modification method is characterized in that, comprising:
Know need to revise carrying after, keep current calling, and send carrying to another network equipment and discharge request message, described carrying discharges request message and is used to indicate described another network equipment and discharges the carrying of having set up;
After knowing that described another network equipment discharges the carrying of having set up, send carrying to described another network equipment and set up request message, described carrying is set up and is carried amended beared information in the request message, sets up carrying to indicate described another network equipment according to described amended beared information.
2. method according to claim 1 is characterized in that, described another network equipment is access network control equipment.
3. method according to claim 2 is characterized in that, described know need to revise carrying, comprising:
In call establishment, when calling party and callee's encoding and decoding were inconsistent, knowing needed to revise carrying.
4. method according to claim 3 is characterized in that, described amended beared information is: the coding/decoding information of callee's correspondence.
5. method according to claim 2 is characterized in that, described know need to revise carrying, comprising:
Receive that subscriber equipment sends be used for revising professional message the time, knowing needs to revise carrying.
6. method according to claim 5 is characterized in that, described amended beared information is: amended professional corresponding bearing capacity.
7. according to each described method of claim 1-6, it is characterized in that the described carrying of knowing that described another network equipment release has been set up comprises:
Receive described another network equipment after carrying discharges successfully, when the carrying corresponding with described carrying release request message of transmission discharges response message, know that described another network equipment discharges the carrying of having set up.
8. a bearing modification equipment is characterized in that, comprising:
The carrying release module, be used for know need to revise carrying after, keep current calling, and send carrying to another network equipment and discharge request message, described carrying discharges request message and is used to indicate described another network equipment and discharges the carrying of having set up;
Module is set up in carrying, be used for after knowing that described another network equipment discharges the carrying of having set up, send carrying to described another network equipment and set up request message, described carrying is set up and is carried amended beared information in the request message, sets up carrying to indicate described another network equipment according to described amended beared information.
9. equipment according to claim 8 is characterized in that, described equipment is the core network mobility management equipment, and described another network equipment is access network control equipment.
10. equipment according to claim 9 is characterized in that, described carrying release module specifically is used at call establishment, and when calling party and callee's encoding and decoding were inconsistent, knowing needed to revise carrying.
11. equipment according to claim 10 is characterized in that, described carrying is set up carrying that module sends and is set up the described amended beared information that carries in the request message and be: the coding/decoding information of callee's correspondence.
12. equipment according to claim 9 is characterized in that, described carrying release module specifically is used for receiving that subscriber equipment sends when being used for revising professional message, and knowing needs to revise carrying.
13. equipment according to claim 12 is characterized in that, described carrying is set up carrying that module sends and is set up the described amended beared information that carries in the request message and be: amended professional corresponding bearing capacity.
14. each described equipment according to Claim 8-13, it is characterized in that, described carrying is set up module and specifically is used for receiving described another network equipment after carrying discharges successfully, when the carrying corresponding with described carrying release request message that sends discharges response message, know that described another network equipment discharges the carrying of having set up.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106128744A CN102137510B (en) | 2010-12-29 | 2010-12-29 | Method and device for load bearing modification |
| PCT/CN2011/084281 WO2012089045A1 (en) | 2010-12-29 | 2011-12-20 | Method and device for bearer modification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106128744A CN102137510B (en) | 2010-12-29 | 2010-12-29 | Method and device for load bearing modification |
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| CN102137510A CN102137510A (en) | 2011-07-27 |
| CN102137510B true CN102137510B (en) | 2013-10-09 |
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| CN2010106128744A Active CN102137510B (en) | 2010-12-29 | 2010-12-29 | Method and device for load bearing modification |
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| CN (1) | CN102137510B (en) |
| WO (1) | WO2012089045A1 (en) |
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| CN102137510B (en) * | 2010-12-29 | 2013-10-09 | 华为技术有限公司 | Method and device for load bearing modification |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1177697B1 (en) * | 1999-05-12 | 2003-11-26 | Nokia Corporation | Method and system for establishing a connection |
| GB2370188A (en) * | 2000-11-01 | 2002-06-19 | Orange Personal Comm Serv Ltd | Mixed-media telecommunication call set-up |
| FI20051263A0 (en) * | 2005-12-07 | 2005-12-07 | Nokia Corp | A method of allocating and releasing channels in a mobile communication system |
| CN100456893C (en) * | 2006-09-30 | 2009-01-28 | 华为技术有限公司 | Load-supporting method and system for voice data |
| CN101296493B (en) * | 2007-04-24 | 2013-02-13 | 华为技术有限公司 | Resource releasing method and network appliance |
| CN101453466B (en) * | 2007-12-05 | 2011-12-28 | 华为技术有限公司 | Network bearing redirection method, apparatus and system |
| CN102137510B (en) * | 2010-12-29 | 2013-10-09 | 华为技术有限公司 | Method and device for load bearing modification |
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| CN102137510A (en) | 2011-07-27 |
| WO2012089045A1 (en) | 2012-07-05 |
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