CN100421482C - Method for updating A2p interface bearing parameter - Google Patents
Method for updating A2p interface bearing parameter Download PDFInfo
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- CN100421482C CN100421482C CNB2005100839633A CN200510083963A CN100421482C CN 100421482 C CN100421482 C CN 100421482C CN B2005100839633 A CNB2005100839633 A CN B2005100839633A CN 200510083963 A CN200510083963 A CN 200510083963A CN 100421482 C CN100421482 C CN 100421482C
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Abstract
The present invention relates to the mobile communication technology, particularly to a method for updating A2p interface bearing parameter under a soft conversion architecture, and the present invention solves the problem that the system load is added when a time-out retransmission mechanism is adopted simply in the prior art. The updating method comprises that A, a base station BS sends bearing parameter updating requisition message toward a mobile soft conversion MSCe, and the message comprises the A2p interface bearing parameter of BS side suggestion renewal; B, MSCe judges whether to accept the parameter of the BS side suggestion renewal or not, if yes, a step C is executed, otherwise, the step is switched to a step D; C, MSCe returns bearing parameter updating request message toward BS to announce BS to carry out parameter renewal; D, MSCe returns response message with rejection information toward BS to announce the current parameter updating request for rejecting BS. The response message comprises the reason information of the current parameter updating requisition when MSCe side rejects BS.
Description
Technical field
The present invention relates to mobile communication technology, particularly soft-exchange construction upgrades the method for A2p interface bearing parameter down.
Background technology
CDMA (Code Division Multiplex Access, code division multiple access) framework that separates with carrying of system calling control mainly comprises MSCe (Mobile Switch Center Emulation, mobile soft switch), BS (Base Station, the base station) and MGW (Media Gate Way, media gateway) functional entity such as, wherein, the A2p interface is the interface between BS and the MGW, be mainly used in the user data that transmits MS (Mobile Station, travelling carriage) as bearer channel.When MS sets up calling by MSCe, need between MSCe and the BS bearing parameter of A2p interface is held consultation, and, in calling procedure, also allow the A2p interface bearing parameter of having set up is upgraded, the flow process of renewal can initiatively be initiated by MSCe or BS respectively.
In the prior art, the flow process that the A2p interface bearing parameter of being initiated by BS upgrades comprises the steps: as shown in Figure 1
A1, BS send the A2p interface bearing parameter to MSCe and upgrade application (Bearer Update Required) message;
BS thinks need be to BS when the A2p interface bearing parameter of MGW upgrades, initiatively send Bearer Update Required message to MSCe, wherein contain the A2p interface bearing parameter that suggestion is upgraded, start BS side timer Tzzp simultaneously, after receiving the A2p interface bearing parameter update request that MSCe returns (Bearer Update Request) message, stop this Tzzp timer.
A2, MSCe return Bearer Update Request message to BS after receiving the Bearer Update Required message of BS transmission;
MSCe according in the Bearer Update Required message with the A2p interface bearing parameter, structure Bearer Update Request information and sending is given BS, start the timer Tyyp of MSCe side simultaneously, after receiving response (the Bearer Update Response) message of finishing renewal, stop this Tyyp timer.
After a3, BS receive Bearer Update Request message, upgrade the A2p interface bearing parameter, and carry out the service negotiation flow process with MS, upgrade upgrade parameters such as relevant Traffic Channel or business option with this A2p interface bearing parameter;
A4, BS return renewal to MSCe and finish response (Bearer Update Response) message after finishing renewal.
BS is in the Bearer Update Response message that MSCe returns, have the modification content of being carried out according to Bearer UpdateRequest message, MSCe receives the Tyyp timer that stops this side after the message, if also do not receive Bearer Update Response message when timer expiry, then MSCe initiatively removes the calling relevant with this parameter update application.
In the existing handling process, if in step a2, when the MSCe side is not accepted A2p interface bearing parameter that BS initiatively initiates and is upgraded, as shown in Figure 2, MSCe will can not be handed down to BS according to the Bearer UpdateRequired structure Bearer Update Request message of receiving, when BS can not receive Bearer UpdateRequest message, timer Tzzp will be overtime, the repeating transmission of BearerUpdate Required message and restarting of Tzzp timer are carried out according to the number of times that is disposed in overtime back, general Tzzp timer duration defaults to 6S, idiographic flow comprises the steps: as shown in Figure 2
B1, BS think and need upgrade to the A2p interface bearing parameter of MGW BS, send Bearer Update Required message to MSCe, wherein contain the A2p interface bearing parameter that suggestion is upgraded, and start timer Tzzp simultaneously;
B2, Tzzp timer expiry are not received Bearer Update Request message yet, and BS carries out the Bearer Update Required message retransmission first time according to the number of repetition 2 of configuration, and restarts the Tzzp timer;
Retransmitting number of times can dispose as required, is that example describes with 2 times only here;
B3, Tzzp timer are overtime once more, and BS carries out the Bearer Update Required message retransmission second time, and restarts the Tzzp timer;
B4, Tzzp timer are overtime for the third time, if BS does not still receive the BearerUpdate Request message that the MSCe side is returned, BS then stops this A2p interface bearing parameter to be upgraded and attempt.
Can see, in the existing handling process, when MSCe does not accept the bearer update of BS initiation, the BS side can't be learnt, more can't in time learn the concrete reason (may be that message packet loss, MSCe do not accept or other reason) that can not receive Bearer Update Request message, the simple mechanism that adopts overtime repeating transmission, its direct shortcoming is to have increased the weight of system loading.
Summary of the invention
The invention provides a kind of A2p interface bearing parameter update method, to solve the simple problem that has increased system loading when adopting overtime repeating transmission machine-processed in the prior art.
A kind of A2p interface bearing parameter update method comprises the steps:
A, base station (BS) send bearing parameter to mobile soft switch (MSCe) and upgrade application (Bearer UpdateRequired) message, comprise the A2p interface bearing parameter that the suggestion of BS side is upgraded in this Bearer Update Required message;
B, MSCe judge whether to accept the described parameter that the suggestion of BS side is upgraded, if execution in step C; Go to step D if not;
C, MSCe return bearing parameter update request (Bearer Update Request) message informing BS to BS and carry out the renewal of described parameter;
D, MSCe return the Bearer Update Request message that carries refusal information to BS, this parameter update application of notice refusal BS.
Described refusal information comprises: show the cause value that the indication information of refusing this parameter update application and/or corresponding in advance Reason For Denial are provided with.
According to described method, when carrying described cause value in the described response message, described method also comprises: BS carries out respective handling according to the Reason For Denial that the described cause value of difference indicates.
Described respective handling comprises: finish this and upgrade application; Perhaps, after waiting for certain hour, retransmit described Bearer Update Required message.
Described method also comprises: when BS did not also receive the described Bearer Update Request message that MSCe returns or carries the response message of refusal information when overtime in the stand-by period of setting, exceed with the repeating transmission number of times of setting and to retransmit described Bearer Update Required message.
Also comprise among the described step C: after BS finishes described parameter update, return renewal to MSCe and finish response (Bearer Update Response) message.
Described method also comprises: when MSCe does not receive described BearerUpdate Response message when overtime in the response time of setting, remove the calling relevant with this parameter modification application.
The beneficial effect of the method for the invention is as follows:
Use the method for the invention, when the MSCe refusal upgrades, in time notify the BS side, make the BS side needn't retransmit Bearer Update Reqired message, thereby reduced the message overhead of whole system, needn't wait overtime mechanism can improve system response time, and can return corresponding Reason For Denial simultaneously, make BS append follow-up respective handling, improved the reliability of system and provide extensibility for defining other reasons value and handling process later on according to cause value.
Description of drawings
Fig. 1 normally upgrades flow chart for the A2p interface bearing parameter of being initiated by BS in the prior art;
Flow chart when Fig. 2 is the A2p interface bearing parameter renewal that MSCe side refusal BS initiates in the prior art;
When Fig. 3 is the A2p interface bearing parameter renewal of MSCe side refusal BS of the present invention initiation, initiatively send a flow chart that comprises the response message notice BS side of refusal information and Reason For Denial;
Fig. 4 is the entire flow of A2p interface bearing parameter update method of the present invention, wherein: when the A2p interface bearing parameter of MSCe side refusal BS initiation upgrades, initiatively send a response message notice BS side that comprises refusal information and Reason For Denial.
Embodiment
In the calling procedure, BS initiatively sends Bearer Update Required message, after MSCe receives BearerUpdate Required, if acceptance renewal, then return Bearer Update Request message to BS according to handling process shown in Figure 1, if when not accepting in time to handle under renewal or the current disposal ability because of any possible reason, as shown in Figure 3, MSCe initiatively sends a response message that carries refusal information, the response message that carries refusal information can be special-purpose refuse information, for example: the special Bearer Update Reject message that is provided with, also can realize by expanding existing Bearer Update Request message.
Refusal information can be an indication information, shows that MSCe refuses this parameter update application, and after BS received the response message that carries refusal information, BS stopped the Tzzp timer, no longer continues to attempt this bearer update.Refusal information can also be the cause value of setting according to different Reasons For Denial, and BS can also handle accordingly according to the Reason For Denial that the different cause value of receiving shows like this.Indication information and cause value can carry simultaneously, but generally speaking, when having carried the concrete reason value in the refusal response message, do not need to repeat to be provided with indication information again.
The concrete handling process that realizes above-mentioned thinking comprises the steps: as shown in Figure 4
S1, BS send Bearer Update Required message to MSCe;
BS thinks need be to BS when the A2p interface bearing parameter of MGW upgrades, initiatively send Bearer Update Required message to MSCe, wherein contain the A2p interface bearing parameter that suggestion is upgraded, start BS side timer Tzzp simultaneously, after receiving the Bearer Update Request message that MSCe returns, stop this Tzzp timer.
If when the Tzzp timer expiry, do not receive Bearer Update Request message or refusal information, as shown in Figure 2, BS carries out the repeating transmission of Bearer Update Required message and restarting of Tzzp timer according to the number of times of configuration, and general Tzzp timer duration defaults to 6S.
S2, MSCe receive Bearer Update Required message, extract the A2p interface bearing parameter of the suggestion renewal that wherein contains, and carry out step S3 then;
S3, MSCe judge whether to accept the A2p interface bearing parameter that the BS suggestion is upgraded, if execution in step S4 then, otherwise change step S7 over to;
The A2p interface bearing parameter that S4, MSCe upgrade according to suggestion is constructed Bearer Update Request message and is returned to BS, starts the Tyyp timer of this side simultaneously;
After S5, BS receive Bearer Update Request message, upgrade the A2p interface bearing parameter, and and MS between carry out the service negotiation process, parameters such as Traffic Channel or business option are upgraded;
S6, BS upgrade the back and return to MSCe and finish the Tyyp timer that whole more new technological process stops this side after upgrading the Bearer Update Response response message of finishing finishing;
If also do not receive Bearer Update Response message when the Tyyp timer expiry, then MSCe initiatively removes the calling relevant with this parameter update application.
S7, MSCe initiatively send a response message that comprises refusal information and Reason For Denial to BS;
Refusal information can send to BS by the refuse information of special use, for example newly-increased Bearer UpdateReject message, the information that can also carry concrete Reason For Denial in the Bearer Update Reject message, make things convenient for BS to handle accordingly like this according to different Reasons For Denial, perhaps, the Reason For Denial value also can be carried by expanding existing Bearer Update Request message, not be used in newly-increased message in the agreement like this, only need the parameter in the existing Bearer Update Request message of expansion to get final product.
After S8, BS receive the response message that comprises refusal information, finish whole more new technological process or select corresponding handling process according to concrete cause value;
After BS receives Bearer Update Reject message or carries the Bearer UpdateRequest message of refusal information, stop the Tzzp timer of this side, start corresponding handling process according to concrete reason then.
The respective handling flow process is selected according to concrete reason, be exemplified below: when Reason For Denial is that MSCe directly finishes more new technological process can't accept A2p interface bearing parameter that BS suggestion upgrades the time, perhaps, when MSCe just busy now, when temporarily not having ability to handle the renewal of A2p interface bearing parameter, BS can wait for that retransmitting Bearer Update Required message again behind the setting-up time attempts; Or the like.
The definition of cause value and respective handling flow process is a lot, not explanation one by one here, and the method for the invention provides extending space for various Reasons For Denial and the respective handling flow process that definition will occur from now on.
The beneficial effect of the method for the invention is as follows:
Use the method for the invention, when the MSCe refusal upgrades, in time notify the BS side, make the BS side Reduce the number of times of retransmitting Bearer Update Required message, thereby the message that has reduced whole system is opened Pin, this mechanism helps to improve system response time, and can return simultaneously corresponding cause value, makes BS can carry out respective handling according to cause value, has improved the reliability of system, simultaneously side of the present invention Method is for definition other reasons value and handling process provide extending space later on.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from this Bright spirit and scope. Like this, if belonging to claim of the present invention, these modifications of the present invention and modification reach The range of its equivalent technologies, then the present invention also be intended to comprise these change and modification interior.
Claims (7)
1. a method of upgrading the A2p interface bearing parameter is characterized in that, comprises the steps:
A, base station BS send bearing parameter to mobile soft switch MSCe and upgrade application Bearer UpdateRequired message, comprise the A2p interface bearing parameter that the suggestion of BS side is upgraded in this Bearer Update Required message;
B, MSCe judge whether to accept the described parameter that the suggestion of BS side is upgraded, if execution in step C; Go to step D if not;
C, MSCe return bearing parameter update request Bearer Update Request message informing BS to BS and carry out the renewal of described parameter;
D, MSCe return the Bearer Update Request message that carries refusal information to BS, this parameter update application of notice refusal BS.
2. the method for claim 1 is characterized in that, described refusal information comprises the cause value that shows that the indication information of refusing this parameter update application and/or corresponding in advance Reason For Denial are provided with.
3. method as claimed in claim 2 is characterized in that, when carrying described cause value in the described response message, described method also comprises: BS carries out respective handling according to the Reason For Denial that the described cause value of difference indicates.
4. method as claimed in claim 3 is characterized in that, described respective handling comprises: finish this and upgrade application; Perhaps, after waiting for certain hour, retransmit described BearerUpdate Required message.
5. the method for claim 1 is characterized in that, described method also comprises:
When BS did not also receive the described Bearer UpdateRequest message that MSCe returns or carries the response message of refusal information when overtime in the stand-by period of setting, exceed with the repeating transmission number of times of setting and to retransmit described Bearer Update Required message.
6. the method for claim 1 is characterized in that, also comprises among the described step C:
After BS finishes described parameter update, return renewal to MSCe and finish response Bearer UpdateResponse message.
7. method as claimed in claim 6 is characterized in that, when MSCe does not receive described Bearer Update Response message when overtime in the response time of setting, removes the calling relevant with this parameter modification application.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100839633A CN100421482C (en) | 2005-07-15 | 2005-07-15 | Method for updating A2p interface bearing parameter |
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| CNB2005100839633A CN100421482C (en) | 2005-07-15 | 2005-07-15 | Method for updating A2p interface bearing parameter |
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| CN1848982A CN1848982A (en) | 2006-10-18 |
| CN100421482C true CN100421482C (en) | 2008-09-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101325735A (en) * | 2007-06-12 | 2008-12-17 | 华为技术有限公司 | Method, apparatus and system for transmitting load-bearing data |
| CN101184329B (en) * | 2007-12-04 | 2012-06-06 | 中兴通讯股份有限公司 | Method of implementing automatic connection of base station control equipment and A port of core network |
| CN101472299B (en) * | 2007-12-28 | 2012-11-07 | 华为技术有限公司 | Method, system and device for dynamically determining Off-Channel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1461922A1 (en) * | 2001-12-27 | 2004-09-29 | Koninklijke Philips Electronics N.V. | A method to prevent net update oscillation |
| WO2004100401A1 (en) * | 2003-05-09 | 2004-11-18 | Lg Electronics Inc. | Rrc group reject method and apparatus for mobile communications |
| CN1581742A (en) * | 2003-08-06 | 2005-02-16 | 北京三星通信技术研究有限公司 | Method for setting enter time limit of MBMS business |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1461922A1 (en) * | 2001-12-27 | 2004-09-29 | Koninklijke Philips Electronics N.V. | A method to prevent net update oscillation |
| WO2004100401A1 (en) * | 2003-05-09 | 2004-11-18 | Lg Electronics Inc. | Rrc group reject method and apparatus for mobile communications |
| CN1581742A (en) * | 2003-08-06 | 2005-02-16 | 北京三星通信技术研究有限公司 | Method for setting enter time limit of MBMS business |
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