CN1878346A - Method and system for releasing mobile switching centre resource - Google Patents

Method and system for releasing mobile switching centre resource Download PDF

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Publication number
CN1878346A
CN1878346A CNA200610033397XA CN200610033397A CN1878346A CN 1878346 A CN1878346 A CN 1878346A CN A200610033397X A CNA200610033397X A CN A200610033397XA CN 200610033397 A CN200610033397 A CN 200610033397A CN 1878346 A CN1878346 A CN 1878346A
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CN
China
Prior art keywords
resource
mobile switching
switching centre
resource inspection
inspection
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Granted
Application number
CNA200610033397XA
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Chinese (zh)
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CN100446584C (en
Inventor
蒋砾
陈品
邱学海
杨志东
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CNB200610033397XA priority Critical patent/CN100446584C/en
Publication of CN1878346A publication Critical patent/CN1878346A/en
Priority to PCT/CN2007/000274 priority patent/WO2007085193A1/en
Application granted granted Critical
Publication of CN100446584C publication Critical patent/CN100446584C/en
Expired - Fee Related legal-status Critical Current
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements

Abstract

The invention relates to a method for releasing the resource of mobile exchange center, which comprises: (a), when the mobile station reaches switch stability at the first mobile exchange center, the first mobile exchange center starts the switch stability timer; (b), the first mobile exchange center starts the resource check when the switch stability timer is over time; (c), if the resource check is fail, the first mobile exchange center will release relative resource. The invention also provides a relative system. The invention, via inter-junction resource check, is able to release the resource of MSC normally when switching between junctions, to improve the resource utilization.

Description

Discharge the method and system of mobile switching centre's resource
Technical field
The present invention relates to communication field, more particularly, relate to a kind of method and system that discharge mobile switching centre's resource.
Background technology
The mobile subscriber may be because the variation of position causes inter-office switchover in carrying out the data service process, this switches as shown in Figure 1, the switching that it is concrete and the flow process of taking out stitches are as follows: (the MobileServices Switching Center of first mobile switching centre, MSC) when carrying out for travelling carriage finding that travelling carriage need switch to the 2nd MSC in the data, services process, initiate handoff request message (FACDIR2) to the 2nd MSC.After the 2nd MSC receives handoff request message,, and after being allocated successfully, return switching response message (facdir2) to a MSC for travelling carriage distributes wireless channel and land circuit.Behind the handover success, the 2nd MSC sends handoff completion message (MSONCH) to a MSC.After the travelling carriage switching is finished, the Mobile Origination of the switching side request message of taking out stitches, the 2nd MSC sends the request message (DROPSERV) of taking out stitches to a MSC, after a MSC receives the request message of taking out stitches, discharge relevant resource, send the response message (dropserv) of taking out stitches to the 2nd MSC.The 2nd MSC discharges relevant resource after receiving the response message of taking out stitches.
The request message of taking out stitches will be lost but some situation (dodge as interexchange link disconnected etc.) will cause interoffice, thereby a MSC is owing to receiving that not the request message of taking out stitches keeps the resource of having set up.For a MSC, it is not owing to receive the request message of taking out stitches, and thinks that mobile subscriber's conversation still continuing, can not discharge the current resource of having set up.Because VLR (VLR Visitor Location Register, VLR) the mobile subscriber's state in is in talking state always, can't initiate to make a call again, and this will inevitably have influence on mobile subscriber's ticket, also will cause nonvolatil the taking of resource of a MSC.
In " TIA/EIA-41-D " lining the TDM voice are switched interoffice clear message loss situation corresponding processing has been arranged.If initiating to take out stitches, MSC do not receive the response message of taking out stitches (facrel) after (FACREL), then can retransmit clear message, be retransmitted to and still do not receive that the words of the response message of taking out stitches will carry out the operation of reset circuit behind certain number of times, specifically please refer to the 5.2.5.1 chapters and sections in " TIA/EIA-41-D ".
But above-mentioned file does not fundamentally solve the problem that clear message is lost, because for the MSC that receives clear message, only could discharge resource after receiving the clear message of playing a game, the message that it places one's entire reliance upon and plays a game.If can't receive the clear message of playing a game and retransmitting always, then resource still can't discharge.
Summary of the invention
The technical problem to be solved in the present invention is, because the interoffice release message is lost the defective that makes that resource can't discharge, provides a kind of method and system that discharge mobile switching centre's resource during at the above-mentioned inter-office switchover of prior art.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of method that discharges mobile switching centre's resource, may further comprise the steps:
(a) when travelling carriage reaches the switching stable state in first mobile switching centre, first mobile switching centre starts switches the stable state timer;
(b) described first mobile switching centre starts resource inspection after switching the stable state timer expiry;
(c) if resource inspection is failed, then described first mobile switching centre discharges related resource.
In the method for release of the present invention mobile switching centre resource, described step (b) comprising:
(b1) described first mobile switching centre sends the resource inspection request to second mobile switching centre after switching the stable state timer expiry;
(b2) described first mobile switching centre starts the resource inspection timer.
In the method for release of the present invention mobile switching centre resource, first mobile switching centre includes the sign or the inter-office switchover circuit number of the travelling carriage that switches in the described step (b) in the resource inspection request that second mobile switching centre sends.
In the method for release of the present invention mobile switching centre resource, described step (c) comprising:
When (c1) described second mobile switching centre receives resource inspection request from first mobile switching centre,, then return resource inspection success response message to first mobile switching centre if travelling carriage is in stable state at the switching state of second mobile switching centre; If travelling carriage is in unstable state at the switching state of second mobile switching centre, then return resource inspection failure response message to first mobile switching centre;
(c2) if described first mobile switching centre does not receive the resource inspection success response message from second mobile switching centre, then discharge the related resource of first mobile switching centre.
In the method for release of the present invention mobile switching centre resource, also comprise in the described step (c2) if described first mobile switching centre receives the resource inspection success response message from second mobile switching centre, then return step (a).
In the method for release of the present invention mobile switching centre resource, do not receive described in the described step (c2) that the resource inspection success message comprises the resource inspection timer expiry and receives resource inspection failure response message.
In the method for release of the present invention mobile switching centre resource, also comprise when travelling carriage reaches the switching stable state in second mobile switching centre, second mobile switching centre starts second and switches the stable state timer, and described second mobile switching centre starts the flow process of resource inspection behind the second switching stable state timer expiry.
The present invention also provides a kind of system that discharges mobile switching centre's resource, comprise travelling carriage and at least two mobile switching centres, described mobile switching centre includes switches the handover module that discharges with resource, described mobile switching centre also includes switches stable state timer and resource inspection module, and described resource inspection module is carried out resource inspection and indication handover module release related resource when resource inspection is failed after switching the stable state timer expiry.
In the system of release of the present invention mobile switching centre resource, described mobile switching centre also includes the resource inspection timer, and described resource inspection failure comprises the resource inspection timer expiry and receives the resource inspection failure response message of opposite end mobile switching centre.
In the system of release of the present invention mobile switching centre resource, described resource inspection module is by sending the resource inspection request and carrying out resource inspection according to the resource inspection response message that returns to opposite end mobile switching centre.
In the system of release of the present invention mobile switching centre resource, described mobile switching centre also includes the resource inspection timer, described resource inspection module starts the resource inspection timer when sending resource inspection message, and judges whether success of resource inspection according to the resource inspection timer is whether overtime.
The method and system of release of the present invention mobile switching centre resource by the interoffice resource inspection, make the related resource that can normally discharge MSC when inter-office switchover, have improved the utilization rate of resource.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the schematic diagram of existing travelling carriage inter-office switchover;
Fig. 2 is the schematic diagram that the present invention discharges the method for mobile switching centre's resource;
Fig. 3 is the structured flowchart that the present invention discharges the mobile switching centre in the system of mobile switching centre's resource;
Fig. 4 is the flow chart that the present invention discharges mobile switching centre's resource method;
Fig. 5 is the resource inspection flow chart that the present invention discharges mobile switching centre's resource method.
Embodiment
As shown in Figure 2, travelling carriage begins that (Mobile Services SwitchingCenter MSC) switches to the 2nd MSC, and is in when switching stable state, starts and switches the stable state timer from first mobile switching centre.When switching is finished, travelling carriage is given a MSC at the 2nd MSC request message of initiating to take out stitches.
If for a certain reason, above-mentioned clear message is lost and is made a MSC can not receive the request message of taking out stitches, thereby the 2nd MSC can not receive the response message of taking out stitches (or the response message of taking out stitches is lost) from a MSC.The 2nd MSC discharges the related resource on the 2nd MSC after waiting for that the response message of taking out stitches is overtime.
The one MSC finds to lay oneself open to and switches (switching the stable state timer expiry) behind the stable state certain hour, initiates the resource inspection request message and starts the resource inspection timer to the 2nd MSC.Include the sign (Mobile Station ID) or the inter-office switchover circuit number (InterMSC Circuit ID) of travelling carriage in the above-mentioned resource inspection request message.
The 2nd MSC if travelling carriage is in stable state at the switching state of the 2nd MSC, then returns resource inspection success response message to a MSC after receiving resource inspection request message from a MSC, includes verification in this message and successfully indicates; Otherwise return resource inspection failure response message to a MSC, include the verification failure flags in this message.
The one MSC receives the resource inspection response message of the 2nd MSC, if any operation (perhaps restart and switch the stable state timer, thereby carry out resource inspection again after waiting for certain hour) is not then done in the resource inspection success; If resource inspection is failed, then discharge the related resource of a MSC.If the resource inspection timer expiry, and a MSC would not also receive the resource inspection response message from the 2nd MSC, then discharges the related resource of a MSC.
Please refer to shown in Figure 3, for realizing aforesaid operations, mobile switching centre among the present invention need include handover module 34, switch stable state timer 31, resource inspection module 32 and resource inspection timer 33, wherein resource inspection module 32 is connected respectively to and switches stable state timer 31 and resource inspection timer 33, and handover module 34 then is connected to and switches stable state timer 31 and resource inspection module 32.
Handover module 34 is similar with the handover module in the existing system, and it is used for, and the mobile switching centre to the opposite end sends handoff request message when switching, and returns after receiving the request message of taking out stitches of opposite end and take out stitches response message and discharge related resource.
Switch stable state timer 31 and resource inspection timer 33 and be used for timing, it is triggered by handover module 34 and resource inspection module 32 respectively.Above-mentioned two logic timers can be realized respectively by two physical timers.In addition, this switches stable state timer 31 and resource inspection timer 33 also can be realized by a physical timer, by being triggered by handover module 34 and resource inspection module 32 respectively in different phase, thereby realizes different timing strategies.Promptly before resource inspection, control, switch the stable state timing by handover module 34; And,, carry out the resource inspection timing by 32 controls of resource inspection module in the resource inspection stage.
Resource inspection module 32 is used to carry out resource inspection, and it is switching stable state timer 31 overtime backs to opposite end mobile switching centre transmission resource inspection request message, and starts resource inspection timer 33.Resource inspection module 32 also is used to receive the resource inspection response message from opposite end mobile switching centre, and judges according to the resource inspection response message whether resource inspection is successful.If resource inspection failure (receive resource inspection failure response message or resource inspection timer 33 is overtime), then resource inspection module 32 transmits a signal to handover module 34, makes handover module 34 discharge related resources.
Fig. 4 discharges the flow chart of mobile switching centre's resource method for the present invention.In the present embodiment, suppose that travelling carriage switches to the 2nd MSC from a MSC, its step is as follows:
S41: travelling carriage switches to the 2nd MSC process from a MSC, and a MSC starts and switches stable state timer 31, switches stable state timer 31 and starts when travelling carriage is in the switching stable state;
S42: a MSC is as if the request message of taking out stitches (it is overtime for example to switch stable state timer 31) that does not receive in the given time from the 2nd MSC, then a MSC starts resource inspection, and whether go wrong to check being connected between a MSC and the 2nd MSC (for example interexchange link dodge break etc.);
The one MSC judges whether resource inspection fails (step S43), if the resource inspection failure then discharges the related resource (step S44) on the MSC; If step S41 is then returned in the resource inspection success.
Fig. 5 discharges the resource inspection flow chart of mobile switching centre's resource method for the present invention, and its step is as follows:
S51: switching under the overtime situation of stable state timer 31, a MSC sends the resource inspection request message to the 2nd MSC, and whether go wrong to check being connected between a MSC and the 2nd MSC (for example interexchange link dodge break etc.);
S52: start resource inspection timer 33, it is picked up counting, include the sign (MSID) or the inter-office switchover circuit number of the travelling carriage that carries out inter-office switchover in the above-mentioned resource inspection request message, wherein for data service, the inter-office switchover circuit number is an invalid value, and verifying message can be not foundation with the inter-office switchover circuit number;
S53: a MSC judges whether to receive the resource inspection success response message from the 2nd MSC, and promptly whether the resource inspection response message from the 2nd MSC carries successfully sign;
(promptly the 2nd MSC is after receiving above-mentioned resource inspection request message if a MSC receives resource inspection success response message from the 2nd MSC, if this moment, travelling carriage was in stable state at the switching state of the 2nd MSC, then return resource inspection success response message to a MSC, carrying verification in this message successfully indicates), then return step S41.
(promptly the 2nd MSC is after receiving above-mentioned resource inspection request message if a MSC receives resource inspection failure response message from the 2nd MSC, if this moment, travelling carriage was not in stable state at the switching state of the 2nd MSC, then return resource inspection failure response message to a MSC, carry in this message and verify failure flags), then discharge the related resource (step S56) on the MSC.
If a MSC does not receive resource inspection response message from the 2nd MSC, then check resource inspection timer 33 whether overtime (step S55).
If resource inspection timer 33 is overtime, then execution in step S56 discharges the related resource on the MSC; If resource inspection timer 33 is not overtime, then return step S53.
On the 2nd MSC, has the resource inspection ability equally.When travelling carriage reaches when switching stable state at the 2nd MSC, the 2nd MSC starts second on it and switches the stable state timer.Behind the second switching stable state timer expiry, the 2nd MSC equally starts resource inspection flow process (as Fig. 4 and shown in Figure 5) with a MSC.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.

Claims (11)

1, a kind of method that discharges mobile switching centre's resource is characterized in that, may further comprise the steps:
(a) when travelling carriage reaches the switching stable state in first mobile switching centre, first mobile switching centre starts switches the stable state timer;
(b) described first mobile switching centre starts resource inspection after switching the stable state timer expiry;
(c) if resource inspection is failed, then described first mobile switching centre discharges related resource.
2, the method that discharges mobile switching centre's resource according to claim 1 is characterized in that described step (b) comprising:
(b1) described first mobile switching centre sends the resource inspection request to second mobile switching centre after switching the stable state timer expiry;
(b2) described first mobile switching centre starts the resource inspection timer.
3, the method that discharges mobile switching centre's resource according to claim 2, it is characterized in that first mobile switching centre includes the sign or the inter-office switchover circuit number of the travelling carriage that switches in the described step (b) in the resource inspection request that second mobile switching centre sends.
4, the method that discharges mobile switching centre's resource according to claim 2 is characterized in that described step (c) comprising:
When (c1) described second mobile switching centre receives resource inspection request from first mobile switching centre,, then return resource inspection success response message to first mobile switching centre if travelling carriage is in stable state at the switching state of second mobile switching centre; If travelling carriage is in unstable state at the switching state of second mobile switching centre, then return resource inspection failure response message to first mobile switching centre;
(c2) if described first mobile switching centre does not receive the resource inspection success response message from second mobile switching centre, then discharge the related resource of first mobile switching centre.
5, the method that discharges mobile switching centre's resource according to claim 4, it is characterized in that, also comprise in the described step (c2) if described first mobile switching centre receives the resource inspection success response message from second mobile switching centre, then return step (a).
6, the method that discharges mobile switching centre's resource according to claim 4 is characterized in that, does not receive described in the described step (c2) that the resource inspection success message comprises the resource inspection timer expiry and receives resource inspection failure response message.
7, the method that discharges mobile switching centre's resource according to claim 1, it is characterized in that, also comprise when travelling carriage reaches the switching stable state in second mobile switching centre, second mobile switching centre starts second and switches the stable state timer, and described second mobile switching centre starts the flow process of resource inspection behind the second switching stable state timer expiry.
8, a kind of system that discharges mobile switching centre's resource, comprise travelling carriage and at least two mobile switching centres, described mobile switching centre includes switches the handover module that discharges with resource, it is characterized in that, described mobile switching centre also includes switches stable state timer and resource inspection module, and described resource inspection module is carried out resource inspection and indication handover module release related resource when resource inspection is failed after switching the stable state timer expiry.
9, the system that discharges mobile switching centre's resource according to claim 8, it is characterized in that, described mobile switching centre also includes the resource inspection timer, and described resource inspection failure comprises the resource inspection timer expiry and receives the resource inspection failure response message of opposite end mobile switching centre.
10, the system that discharges mobile switching centre's resource according to claim 8 is characterized in that, described resource inspection module is by sending the resource inspection request and carrying out resource inspection according to the resource inspection response message that returns to opposite end mobile switching centre.
11, the system that discharges mobile switching centre's resource according to claim 10, it is characterized in that, described mobile switching centre also includes the resource inspection timer, described resource inspection module starts the resource inspection timer when sending resource inspection message, and judges whether success of resource inspection according to the resource inspection timer is whether overtime.
CNB200610033397XA 2006-01-25 2006-01-25 Method and system for releasing mobile switching centre resource Expired - Fee Related CN100446584C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CNB200610033397XA CN100446584C (en) 2006-01-25 2006-01-25 Method and system for releasing mobile switching centre resource
PCT/CN2007/000274 WO2007085193A1 (en) 2006-01-25 2007-01-25 Method and system for releasing handover resources

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Application Number Priority Date Filing Date Title
CNB200610033397XA CN100446584C (en) 2006-01-25 2006-01-25 Method and system for releasing mobile switching centre resource

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CN100446584C CN100446584C (en) 2008-12-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102316232A (en) * 2011-05-23 2012-01-11 中兴通讯股份有限公司 Call-timing processing method, device and system

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* Cited by examiner, † Cited by third party
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JP3049056B1 (en) * 1998-07-02 2000-06-05 日本電気通信システム株式会社 Subscriber data control method for mobile communication network
US6917810B2 (en) * 2001-12-05 2005-07-12 Telefonaktiebolaget Lm Ericsson (Publ) Optimization or circuit call setup and delivery associated with inter-MSC packet data handoff
GB2406022A (en) * 2003-09-15 2005-03-16 Matsushita Electric Ind Co Ltd Method for releasing resources at SIP handover
CN100341382C (en) * 2005-03-30 2007-10-03 中兴通讯股份有限公司 A method for implementing relay switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102316232A (en) * 2011-05-23 2012-01-11 中兴通讯股份有限公司 Call-timing processing method, device and system

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WO2007085193A1 (en) 2007-08-02

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