CN101646147B - Method for crossing call forward time limitation and mobile switching center simulation entity - Google Patents
Method for crossing call forward time limitation and mobile switching center simulation entity Download PDFInfo
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- CN101646147B CN101646147B CN2009100929498A CN200910092949A CN101646147B CN 101646147 B CN101646147 B CN 101646147B CN 2009100929498 A CN2009100929498 A CN 2009100929498A CN 200910092949 A CN200910092949 A CN 200910092949A CN 101646147 B CN101646147 B CN 101646147B
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Abstract
The invention provides a method for crossing call forward time limitation and a mobile switching center simulation entity, belonging to the communication technical field; the method comprise steps of: firstly an MSCe entity receives calling request information from a call subscriber and resolves the forwarded time from the calling request information; when the MSCe entity finds the current call demand forward and the forwarded time is equal to a presupposed maximum forward time, the MSCe entity regulates the forwarded time, the regulated forward time is less than the presupposed maximum forward time; the MSCe entity transmits and records the calling request of the regulated forward time according to a presupposed transmitting tragedy, thus overcoming the problem in the prior art than when the forward time reaches the maximum value, the forward is limited, and being capable of effectively ensuring the normal use of a user.
Description
Technical field
The invention belongs to communication technical field, relate in particular to a kind of crossing call forward time limiting method and mobile switching center emulation (MSCe, Mobile Switch Center emulation) entity.
Background technology
Usually in communication system, can the Call Forwarding services service be provided to the user.Call Forwarding services be meant when the user signatory this type of when professional, allow under specific scene, will to call out other numbers that this user calling is routed to this user's appointment and get on.
The restriction of the maximum times of changeing before having pair call to take place in the existing standard, for example regulation Redirection Counter is the value between 1 to 5 in ISUP (ISDN User Part, the ISDNYong Hubufen) agreement, promptly maximum call forward time is 5 times.During station to station call, change number of times before carrying in the interoffice signaling.Server judges when preceding commentaries on classics number of times reaches the maximum of regulation when changeing before the bid, then call release.
With a station to station call in CDMA (the Code Division Multiple Access code division multiple access) network is example.Networking diagram is shown in accompanying drawing 1, and the preceding office of changing over to of PSTN (public switch telephone network) is to the calling of MSCe1, and called subscriber A belongs to MSCe1, and this user divert when busy of having contracted is professional, and transferred number belongs to the user B of MSCe2.User A converses when calling out access, and call out and be routed to the user B under the MSCe2 this moment under the normal condition.If yet current this call forward time has reached maximum, this divert when busy can not be carried out.
Referring to Fig. 2, be the limited flow chart of Call Forwarding in the prior art, concrete steps are following:
Change the maximum of changeing number of times before number of times has reached before step 204, MSCe1 judge, then call release does not carry out preceding commentaries on classics.
In the prior art; Owing to change the restriction of number of times before being provided with, when changeing number of times before, cause calling can't carry out preceding commentaries on classics once more more than or equal to the maximum of preceding commentaries on classics number of times; The characteristic service that causes the user to open can't carry out, thereby has influenced user's normal use.
Summary of the invention
In order to address the above problem; The purpose of this invention is to provide a kind of crossing call forward time limiting method and mobile switching center emulation entity; Overcome in the prior art when reaching maximum because of preceding commentaries on classics number of times, the restricted problem of preceding commentaries on classics can effectively guarantee user's normal use.
In order to achieve the above object, a kind of crossing call forward time limiting method, said method comprises:
The mobile switching center emulation entity receives the call request message from the calling subscriber, and changes number of times before from said call request message, parsing;
When said mobile switching center emulation entity is found to change before current calling needs; And when changeing number of times before the maximum that said preceding commentaries on classics number of times equals to preset; The said preceding number of times that changes of said mobile switching center emulation entity adjustment, the adjusted preceding number of times that changes is less than the said preset maximum preceding number of times that changes;
Said mobile switching center emulation entity is transmitted and has been write down the adjusted preceding call request of changeing number of times according to preset forwarding strategy.
Preferably, the said preceding step of changeing number of times of said mobile switching center emulation entity adjustment is specially:
Said mobile switching center emulation entity obtains said adjusted preceding commentaries on classics number of times with the said preceding preceding once more number of times that changes that number of times deducts permission that changes.
Preferably, said method also comprises:
The business of the said called subscriber's of configuration crossing call forward time restriction in the attaching position register under the called subscriber that said calling subscriber calls out;
Said mobile switching center emulation entity receives the notification message that said attaching position register sends, and said notification message is used to notify the said called subscriber of said mobile switching center emulation entity the business of said crossing call forward time restriction of having contracted.
Preferably, the adjustment of said mobile switching center emulation entity said before before the step of commentaries on classics number of times, said method also comprises:
Said mobile switching center emulation entity is judged the said called subscriber business whether signatory said crossing call forward time limits, if carry out the said preceding step of changeing number of times of said mobile switching center emulation entity adjustment; Otherwise, process ends.
Preferably, said mobile switching center emulation entity is according to preset forwarding strategy, and the step of transmitting the call request of having write down adjusted preceding commentaries on classics number of times comprises:
The positional information that said mobile switching center emulation entity changes the called subscriber before from the call re-direction indication that receives, obtaining;
According to the positional information of changeing the called subscriber before said, said mobile switching center emulation entity changes the called subscriber before base station controller transmission paging is said paging request carries the said adjusted preceding number of times that changes in the said paging request.
Preferably, said mobile switching center emulation entity is according to preset forwarding strategy, and the step of transmitting the call request of having write down adjusted preceding commentaries on classics number of times comprises:
The positional information that said mobile switching center emulation entity changes the called subscriber before from the call re-direction indication that receives, obtaining;
According to said positional information, said mobile switching center emulation entity sends initial address message and gives public switch telephone network, carries the said adjusted preceding number of times that changes in the said initial address message.
The present invention also provides a kind of mobile switching center emulation entity, comprising:
Receiver module is used to receive the call request message from the calling subscriber, and changes number of times before from said call request message, parsing;
Before change the number of times adjusting module, be used for before finding current calling needs, changeing, and said the commentaries on classics before when changeing number of times before maximum that number of times equals to preset, adjust saidly changes number of times before, adjustedly changes number of times less than said preset maximum preceding commentaries on classics number of times before;
The Call Forwarding module is used for according to preset forwarding strategy, transmits and has write down the adjusted preceding call request of changeing number of times.
Preferably, also comprise:
Professional detection module is used to judge called subscriber that said calling subscriber the calls out crossing call forward time limit service of whether having contracted, if, triggers said before commentaries on classics number of times adjusting module.
Preferably, also comprise:
The business configuration module, the attaching position register that is used under said called subscriber disposes the business of said called subscriber's crossing call forward time restriction.
Preferably, said Call Forwarding module comprises:
Acquiring unit is used for indicating the positional information of obtaining the preceding called subscriber of commentaries on classics from the call re-direction that receives;
Retransmission unit is used for according to the positional information of changeing the called subscriber before said, and the paging request of before base station controller transmission paging is said, changeing the called subscriber carries the said adjusted preceding number of times that changes in the said paging request; Perhaps
Be used for according to said positional information, send initial address message, carry the said adjusted preceding number of times that changes in the said initial address message to public switch telephone network.
At least one technical scheme in the technique scheme has following beneficial effect: through the mobile switching center emulation entity the preceding number of times that changes is adjusted; Make the adjusted preceding number of times that changes less than preset maximum preceding commentaries on classics number of times; Make it possible to normally accomplish Call Forwarding; Thereby overcome in the prior art when reaching maximum the restricted problem of Call Forwarding because of preceding commentaries on classics number of times.And when Call Forwarding is out, allows to call out once more preceding the commentaries on classics through revising the preceding commentaries on classics number of times that carries in the interoffice signaling, thereby can effectively guarantee user's normal use.
Description of drawings
Fig. 1 is existing classical group web frame sketch map;
The limited schematic flow sheet of Call Forwarding when Fig. 2 reaches maximum for changeing number of times before existing;
Fig. 3 is a crossing call forward time limiting method flow chart in the embodiments of the invention;
Fig. 4 is the schematic flow sheet of the signatory crossing call forward time restriction of user in the embodiments of the invention;
Fig. 5 lands the flow chart of calling out crossing call forward time for local exchange in the embodiments of the invention;
Fig. 6 is for changeing the flow chart of number of times restriction before crossing in the outbound call in the embodiments of the invention;
Fig. 7 is the structured flowchart of mobile switching center emulation entity in the embodiments of the invention.
Embodiment
In the present embodiment, at first the MSCe entity receives the call request message from the calling subscriber, and changes number of times before from call request message, parsing; Find to change before current calling needs when the mobile switching center emulation entity then, and change when changeing number of times before maximum that number of times equals to preset, change number of times before the adjustment of MSCe entity, the adjusted number of times that changes before changes number of times less than preset before maximum; Last MSCe entity is transmitted and has been write down the adjusted preceding call request of changeing number of times according to preset forwarding strategy.
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer,, the embodiment of the invention is done explanation in further detail below in conjunction with embodiment and accompanying drawing.At this, illustrative examples of the present invention and explanation are used to explain the present invention, but not as to qualification of the present invention.
As shown in Figure 3, be crossing call forward time limiting method flow chart in the embodiments of the invention, concrete steps are following:
The business of step 301, configuration called subscriber's crossing call forward time restriction in the attaching position register (HLR, HomeLocation Register) under the called subscriber that the calling subscriber calls out;
The process of the signatory crossing call forward time limit service of called subscriber has been described in step 301～302, and is following referring to Fig. 4 detailed process:
The business of this called subscriber's of configuration crossing call forward time restriction among step 401, the HLR, HLR uses the VLR (customer location register) of this called subscriber's registration of QUALDIR (qualification indication) message informing;
For example, this MSCe entity receives the IAM message of calling subscriber's Incoming ISUP signaling, has carried the preceding number of times that changes in this message, and for example this preceding commentaries on classics number of times is 5 times, and this calling subscriber's call request has just before been changeed 5 times.
The call request message that step 304, basis receive, the MSCe entity sends position requests to the HLR of called subscriber's ownership;
When the called subscriber of calling subscriber's calling need trigger Call Forwarding, HLR sent the changed course indication to the MSCe entity, indication triggering Call Forwarding.The reason that triggers Call Forwarding possibly be that the active user converses, the user do not reply or agreement in the other reasons stipulated, satisfy the condition that triggers Call Forwarding, present embodiment only is that example describes with the divert when busy.
When not signatory this crossing call forward time restriction of called subscriber professional, but process ends; Otherwise, continue to carry out next step.
Before judging, step 307, MSCe entity change the maximum preceding number of times that changes whether number of times equals to preset, if, execution in step 308; Otherwise, execution in step 309;
It is for example preset that to change number of times before maximum be 5 and since in step 303, obtain before to change number of times also be 5, change number of times before changeing maximum that number of times equals to preset this moment before, if according to existing Call Forwarding technology, this divert when busy can not be carried out.And in the present embodiment, then can continue execution in step 308;
For example; The preceding once more commentaries on classics number of times of this permission in the present embodiment is 2; Adjusted preceding commentaries on classics number of times can be 3 (5-2=3), just uses the preceding preceding once more commentaries on classics number of times that number of times deducts permission that changes, and obtains adjusted preceding commentaries on classics number of times; Make the adjusted preceding number of times that changes be less than the preset maximum preceding number of times that changes, to satisfy the condition of Call Forwarding.Certainly the preceding once more commentaries on classics number of times of this permission can be set according to actual conditions.
In the present embodiment, can adopt following two kinds of forwarding strategies, transmit and write down the adjusted preceding call request of changeing number of times according to preceding commentaries on classics called subscriber's type (the for example PSTN user of the mobile subscriber of local exchange and foreign exchange).
Preset forwarding strategy one: commentaries on classics called subscriber's positional information before at first the MSCe entity obtains from the call re-direction indication that receives; Secondly according to this positional information, the attaching position register that the MSCe entity changes called subscriber's ownership forward sends location request message; Change the position request response of the attaching position register transmission of called subscriber's ownership before the MSCe entity receives then, change the called subscriber before this position request response indication and be registered in local exchange; Last MSCe entity changes called subscriber's paging request before base station controller sends paging.
Preset forwarding strategy two: commentaries on classics called subscriber's positional information before at first the MSCe entity obtains from the call re-direction indication that receives; Secondly according to this positional information, the MSCe entity sends initial address message and gives the PSTN public switch telephone network, changes number of times before carrying after the adjustment in this initial address message.
Can know by technique scheme; Through the MSCe entity preceding commentaries on classics number of times is adjusted, made the adjusted preceding number of times that changes, realized this and met busy Call Forwarding less than the preset preceding commentaries on classics of maximum number of times; Thereby overcome in the prior art when reaching maximum the restricted problem of preceding commentaries on classics because of preceding commentaries on classics number of times.And when Call Forwarding is out, change before the preceding commentaries on classics number of times that carries in the interoffice signaling allows to call out once more, can effectively guarantee user's normal use through revising.
Implementation method of the present invention is to change the restriction of number of times before being crossed by HLR instruct MS Ce entity, and confirms the preceding once more number of times that changes of permission according to the indication of HLR.When Call Forwarding is out, before allowing to call out once more, changes the preceding commentaries on classics number of times that carries in the interoffice signaling through revising.
Referring to Fig. 5,, specific as follows for local exchange in the embodiments of the invention lands the flow chart of calling out crossing call forward time:
Step 501, MSCe entity are received the IAM message of Incoming ISUP signaling, have wherein carried the preceding number of times that changes;
For example, the preceding commentaries on classics number of times that carries is 5 times.
Step 502, MSCe entity send position requests to HLR;
Step 503, MSCe entity are received the position response of HLR, carry the changed course indication, and indication triggers divert when busy;
Change before the MSCe entity is found when changeing the maximum of number of times before number of times has reached, judge whether commentaries on classics number of times limit service before signatory the crossing of called subscriber.If the called subscriber changes the number of times limit service before having contracted and having crossed; The MSCe entity changes number of times before revising according to the preceding once more number of times that changes of the current permission of configuration; If the preceding again commentaries on classics number of times of permission is 2 times, the preceding commentaries on classics number of times that then will preserve subtracts 2, and promptly adjusted preceding commentaries on classics number of times is 3 times;
The Call Forwarding user C that step 504, HLR bring is the mobile subscriber, and the MSCe entity sends position requests to the HLR of Call Forwarding user C ownership;
Step 505, MSCe entity receive that position this Call Forwarding of response indication user C is currently registered in local exchange;
Step 506, MSCe entity send out paging request for BSC (base station controller), indication paging Call Forwarding user C.
Introduce when the situation that needs the outbound call called subscriber more below.Referring to Fig. 6, for changeing the flow chart of number of times restriction before crossing in the outbound call in the embodiments of the invention, concrete steps are following:
For example, this preceding commentaries on classics number of times is 5 times;
Change before the MSCe entity is found when changeing the maximum of number of times before number of times has reached, judging whether the called subscriber has contracted changes the business that number of times limits before crossing; If the signatory business of crossing the restriction of preceding commentaries on classics number of times of called subscriber; The MSCe entity changes number of times before revising according to the preceding once more number of times that changes of the current permission of configuration; If allowing the number of times of preceding commentaries on classics again is 2 times, the preceding commentaries on classics number of times that then will preserve subtracts 2, and promptly this preceding commentaries on classics number of times is 3 times after the adjustment;
The Call Forwarding user C that step 604, HLR bring is PSTN user, and the MSCe entity sends IAM message and gives PSTN, the preceding commentaries on classics number of times of the current saved of carrying in the IAM message.
Owing to the preceding commentaries on classics number of times that carries in the IMA message is the preceding commentaries on classics number of times after upgrading, and therefore the preceding commentaries on classics number of times after this renewal can guarantee the Call Forwarding of next time less than the preset maximum preceding number of times (for example can be set to 5 times) that changes.
Because current business in field of mobile communication more and more is tending towards variation and personalized, embodiments of the invention can change implementation before providing more flexibly for user or service provider.Be particularly useful for providing the service of characterization to some special users.And embodiments of the invention are not limited to be applied in the cdma network, and also can be applicable to the CDMA2000 network, and in the non-CDMA2000 network.
In order to realize above-mentioned method embodiment, other embodiments of the invention also provide a kind of mobile switching center emulation entity.What need at first explanation in addition is; Because following embodiment is for realizing aforesaid method embodiment; So the module in this mobile switching center emulation entity all is to establish for each step that realizes preceding method; But the present invention is not limited to following embodiment, and any mobile switching center emulation entity of said method and module of realizing all should be included within protection scope of the present invention.And in the following description, the content identical with preceding method omitted at this, to practice thrift length.
Referring to Fig. 7, the structural representation for mobile switching center emulation entity in the embodiments of the invention comprises:
This call request message can be the initial address message of Incoming ISDNYong Hubufen signaling.
Before change number of times adjusting module 72, be used for before finding current calling needs, changeing, and said the commentaries on classics before when changeing number of times before maximum that number of times equals to preset, adjust saidly changes number of times before, adjustedly changes number of times less than said preset maximum preceding commentaries on classics number of times before;
Call Forwarding module 73 is used for according to preset forwarding strategy, transmits and has write down the adjusted preceding call request of changeing number of times.
In another embodiment of the present invention; This mobile switching center emulation entity also comprises: professional detection module 74; Be used to judge called subscriber that the calling subscriber the calls out crossing call forward time limit service of whether having contracted, if change number of times adjusting module 72 before triggering.
In another embodiment of the present invention, this Call Forwarding module 73 comprises:
Acquiring unit is used for indicating the positional information of obtaining the preceding called subscriber of commentaries on classics from the call re-direction that receives;
Retransmission unit is used for according to the positional information of changeing the called subscriber before said, and the paging request of before base station controller transmission paging is said, changeing the called subscriber carries the said adjusted preceding number of times that changes in the said paging request; Perhaps
Be used for according to said positional information, send initial address message, carry the said adjusted preceding number of times that changes in the said initial address message to public switch telephone network.
In another embodiment of the present invention, this mobile switching center emulation entity also comprises: the business configuration module, the attaching position register that is used under said called subscriber disposes the business of said called subscriber's crossing call forward time restriction.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. a crossing call forward time limiting method is characterized in that, said method comprises:
The mobile switching center emulation entity receives the call request message from the calling subscriber, and changes number of times before from said call request message, parsing;
When said mobile switching center emulation entity is found to change before current calling needs; And when changeing number of times before the maximum that said preceding commentaries on classics number of times equals to preset; The said preceding number of times that changes of said mobile switching center emulation entity adjustment, the adjusted preceding number of times that changes is less than the said preset maximum preceding number of times that changes;
Said mobile switching center emulation entity is transmitted and has been write down the adjusted preceding call request of changeing number of times according to preset forwarding strategy.
2. method according to claim 1 is characterized in that, the said preceding step of changeing number of times of said mobile switching center emulation entity adjustment is specially:
Said mobile switching center emulation entity obtains said adjusted preceding commentaries on classics number of times with the said preceding preceding once more number of times that changes that number of times deducts permission that changes.
3. method according to claim 1 is characterized in that, said method also comprises:
The business of the said called subscriber's of configuration crossing call forward time restriction in the attaching position register under the called subscriber that said calling subscriber calls out;
Said mobile switching center emulation entity receives the notification message that said attaching position register sends, and said notification message is used to notify the said called subscriber of said mobile switching center emulation entity the business of said crossing call forward time restriction of having contracted.
4. method according to claim 3 is characterized in that, the adjustment of said mobile switching center emulation entity said before before the step of commentaries on classics number of times, said method also comprises:
Said mobile switching center emulation entity is judged the said called subscriber business whether signatory said crossing call forward time limits, if carry out the said preceding step of changeing number of times of said mobile switching center emulation entity adjustment; Otherwise, the flow process of method ends.
5. method according to claim 1 is characterized in that, said mobile switching center emulation entity is according to preset forwarding strategy, and the step of transmitting the call request of having write down adjusted preceding commentaries on classics number of times comprises:
The positional information that said mobile switching center emulation entity changes the called subscriber before from the call re-direction indication that receives, obtaining;
According to the positional information of changeing the called subscriber before said, said mobile switching center emulation entity changes the called subscriber before base station controller transmission paging is said paging request carries the said adjusted preceding number of times that changes in the said paging request.
6. method according to claim 1 is characterized in that, said mobile switching center emulation entity is according to preset forwarding strategy, and the step of transmitting the call request of having write down adjusted preceding commentaries on classics number of times comprises:
The positional information that said mobile switching center emulation entity changes the called subscriber before from the call re-direction indication that receives, obtaining;
According to said positional information, said mobile switching center emulation entity sends initial address message and gives public switch telephone network, carries the said adjusted preceding number of times that changes in the said initial address message.
7. a mobile switching center emulation entity is characterized in that, comprising:
Receiver module is used to receive the call request message from the calling subscriber, and changes number of times before from said call request message, parsing;
Before change the number of times adjusting module, be used for before finding current calling needs, changeing, and said the commentaries on classics before when changeing number of times before maximum that number of times equals to preset, adjust saidly changes number of times before, adjustedly changes number of times less than said preset maximum preceding commentaries on classics number of times before;
The Call Forwarding module is used for according to preset forwarding strategy, transmits and has write down the adjusted preceding call request of changeing number of times.
8. mobile switching center emulation entity according to claim 7 is characterized in that, also comprises:
Professional detection module is used to judge called subscriber that said calling subscriber the calls out crossing call forward time limit service of whether having contracted, if, triggers said before commentaries on classics number of times adjusting module.
9. mobile switching center emulation entity according to claim 8 is characterized in that, also comprises:
The business configuration module, the attaching position register that is used under said called subscriber disposes the business of said called subscriber's crossing call forward time restriction.
10. mobile switching center emulation entity according to claim 7 is characterized in that, said Call Forwarding module comprises:
Acquiring unit is used for indicating the positional information of obtaining the preceding called subscriber of commentaries on classics from the call re-direction that receives;
Retransmission unit is used for according to the positional information of changeing the called subscriber before said, and the paging request of before base station controller transmission paging is said, changeing the called subscriber carries the said adjusted preceding number of times that changes in the said paging request; Perhaps
Be used for according to said positional information, send initial address message, carry the said adjusted preceding number of times that changes in the said initial address message to public switch telephone network.
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| CN102123397B (en) * | 2011-02-24 | 2015-05-06 | 中兴通讯股份有限公司 | Method and system for limiting concurrent forwarding |
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| EP1638358A1 (en) * | 2004-09-16 | 2006-03-22 | LG Electronics Inc. | Method for monitoring paging channel of packet switched service |
| CN101043751A (en) * | 2007-03-28 | 2007-09-26 | 华为技术有限公司 | Method and system for restraining calling transfer |
| CN101163281A (en) * | 2007-11-30 | 2008-04-16 | 中国电信股份有限公司 | Method of implementing forward-shifting service shielding on fixed access of mobile subscriber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1638358A1 (en) * | 2004-09-16 | 2006-03-22 | LG Electronics Inc. | Method for monitoring paging channel of packet switched service |
| CN101043751A (en) * | 2007-03-28 | 2007-09-26 | 华为技术有限公司 | Method and system for restraining calling transfer |
| CN101163281A (en) * | 2007-11-30 | 2008-04-16 | 中国电信股份有限公司 | Method of implementing forward-shifting service shielding on fixed access of mobile subscriber |
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