CN100563352C

CN100563352C - A kind of implementation method of intelligent network collecting number

Info

Publication number: CN100563352C
Application number: CNB2004100810683A
Authority: CN
Inventors: 李论
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2004-09-30
Filing date: 2004-09-30
Publication date: 2009-11-25
Anticipated expiration: 2024-09-30
Also published as: CN1756378A

Abstract

The invention discloses a kind of implementation method of intelligent network collecting number, store simple prefix table in the service control point in advance, then this method may further comprise the steps: A, the operation exchange number that the calling subscriber dialled of naming a person for a particular job sends to service control point by turn, service control point is whenever received an item sign indicating number, all judge the whole numbers received whether with simple prefix table in the unique coupling of prefix, if determine that then call information carries out the associated call operation, otherwise, return execution in step A.The present invention has reduced the interaction times of Service Switching Point and service control point, has simplified the flow process of collecting number and number analysis, has reduced the load between Service Switching Point and the service control point.

Description

A kind of implementation method of intelligent network collecting number

Technical field

The present invention relates to the IN service field, relate in particular to a kind of implementation method of intelligent network collecting number.

Background technology

Intelligent network (IN Intelligent Network) is a kind of complementary network that is provided with on the basis of original communication network, its objective is to introduce new business fast under multivendor environment.The IN service that can realize at present comprises: abbreviated dialing, hotline, go out back time-out, interruption-free, Malicious Call Identification, call follow and voice mail etc.

The maximum characteristics of intelligent network are that exchange is separated with business control, and promptly switching center only finishes the basic function that continues, and finishes IN service by some functional node coordinated exchange centers of newly establishing in the telecommunications network, thereby improves professional ability and network capabilities greatly.In conjunction with links such as calling, network, operation and terminals, International Telecommunication Union has proposed the whole network intellectuality, be intellectualized call, intelligent network, operation intellectuality and Intelligent Terminal, by combining of professional and terminal, solve the problem that too simply causes promoting service to be obstructed because of terminal in the legacy network, make the user can experience the benefit that new business is brought fast, promote the popularization and the development of new business simultaneously.

The Main physical entity that is comprised in the intelligent network physical plane has: Service Switching Point and Service Control Point.Wherein, SCP is the core of intelligent network, and it has leading subscriber data and network data and service control function; And SSP has CCF, has only the switch that links to each other with the user to trigger SSP, can start IN service, so SSP also is a crucial entity in the intelligent network.

Calling subscriber's off-hook of intelligent network, and behind input called number on the telecommunication terminal, to start IN service by triggering SSP, then SSP collects the number of calling subscriber's input under the control of SCP, and collected number reported SCP, so that finish the IN service that the calling subscriber starts.SSP and SCP cooperation at present and the collection number of realizing and the method for number analysis are: SCP carries the collection number request (PC) of current pre-collection number length for many times to the SSP transmission, require SSP to provide the number of the respective length of collecting to it, by SCP all numbers of receiving are carried out analysis-by-synthesis then, make SCP realize the control of all IN services.

As shown in Figure 1, existing collection number method may further comprise the steps:

Step 101. calling subscriber off-hook, SSP sends off-hook call (DP1) and Initial Detection Point (IDP) message to SCP, and the off-hook information that sends the calling subscriber triggers the IN service that the calling subscriber contracts to SCP.

Step 102～step 103.SCP analyzes calling subscriber's attribute after receiving the IDP message of SSP transmission, sends according to analysis result then to connect playback message related to resources (CTR or ETC) to SSP, and notice SSP is established to the connection of corresponding playback resource.

Generally, comprise all contracted users' Basic Information Table in SCP inside, described information table has write down calling subscriber's user property, and promptly whether the active user is user in special user or the group, and the dialing tone of customization or the like user signing contract information.Therefore, in step 102,103, SCP at first according to attribute and the CAMEL-Subscription-Information of corresponding calling subscriber in the calling number Query Information table, and triggers the IN service that this calling subscriber contracts after receiving IDP message.For example, if customization the color dial tone business, SCP will play the audio file of customization by the color dial tone node to the calling subscriber by connecting the connection that playback message related to resources notice SSP is established to the color dial tone node, realize the color dial tone IN service.

After step 104. calling subscriber hears dialing tone, dial on telecommunication terminal, SSP cooperates with SCP and finishes collection number and the analysis that the calling subscriber is dialled the number.

In the above-mentioned steps SSP cooperate with SCP the detailed process of realize collecting number and analysis will be below to Fig. 2 in detail in explanation.

After step 105. collection number and analysis are finished, the connection that SCP notice SSP release steps 103 is set up to corresponding playback resource.

So far, cooperate the collection number process of finishing to finish by SSP and SCP, SCP can carry out subsequent treatment according to the complete number that receives.

With reference to Fig. 2, in the prior art, SSP cooperates the detailed process that realizes collection number and analysis may further comprise the steps with SCP:

Step 201.SCP sends PC message to SSP, and notice SSP begins to collect the number that the calling subscriber dials.

Generally, store prefix table among the SCP, can comprise in this prefix table: contents such as prefix, The Minimum Number Length, maximum number length, Home Network attribute, prefix attribute, service attribute, the concrete form of prefix table can be referring to table 1.

Prefix	The Minimum Number Length	Maximum number is long	The Home Network attribute	The prefix attribute	Service attribute	Remarks
Prefix	The Minimum Number Length	Maximum number is long	The Home Network attribute	The prefix attribute	Service attribute	Remarks	114	3	3	Be	Special service	Continue
17909	9	24	Be	IN service	The professional transfer	One-stage dialing	114	3	3	Be	Special service	Continue
17909	9	24	Be	IN service	The professional transfer	One-stage dialing	17909300	8	8	Be	IN service	The professional transfer	Two-stage dialing

Table 1

In this step, SCP is set at the minimum length of all prefixes in the SCP prefix table with the current pre-collection number length that carries in the above-mentioned PC message, for example, is set to the minimum number length 3 of all prefixes of table 1.

The number that step 202.SSP receives and the buffer memory calling subscriber is dialled sends to SCP by number-accepting request response (PCR) message with the settled preceding pre-number of collecting number length of PC message middle finger.

After step 203.SCP receives the number that SSP sends, prefixes all in all numbers of receiving and self prefix table is compared, judge whether and receive the prefix that collects the unique coupling of number, if having, then execution in step 204; Otherwise, execution in step 211.

In this step,, then directly the number that receives and all prefixes in the prefix table are compared if SCP receives for the first time the number that SSP sends; Otherwise the number that SCP at first will repeatedly receive to together, uses the number that is grouped together and all prefixes in the prefix table to compare according to the sequential combination that receives then.

Step 204.SCP is according to the minimum number length in the prefix table of self, and the minimum number length whether length of further judgement all numbers that receive equals to mate prefix is if then steps performed 208; Otherwise execution in step 205.

Step 205.SCP judges that according to the Home Network attribute in self prefix table all numbers that received are Home Network number or outer net number, if the Home Network number, then execution in step 206; If the outer net number, then execution in step 209.

Step 206.SCP sends PC message to SSP once more according to the minimum number length of the coupling prefix in self prefix table, and notice SSP continues to collect number.

Current pre-collection number length in the above-mentioned PC message of SCP be set to match the prefix minimum number length with collected the poor of number length.

After step 207.SSP receives the PC message of SCP transmission, return the number of the advance collection number length of appointment in the PC message to SCP to SCP by PCR message.

Step 208.SCP analyzes whole numbers of collecting, obtains related calling information, finishes current collection number, number analysis flow process then.

Step 209.SCP sends PC message to SSP once more according to the minimum number length of coupling prefix in self prefix table, and notice SSP continues to collect number.

Current pre-collection number length in the above-mentioned PC message of SCP is set to the outer net minimum number length and collects the poor of number length.

Step 210.SSP mutual by with the outer net switching node determines that the number of collecting is complete, finishes current collection number, number analysis flow process.

Step 211.SCP sends PC message to SSP once more according to the minimum number length of self prefix table, and notice SSP continues to collect number.

The current pre-collection number length that carries in the above-mentioned PC message of SCP is set to the minimum number length of all coupling prefixes in the prefix table and has collected the poor of number length.

After step 212.SSP receives PC message, to the number that SCP returns the current pre-collection number length of appointment in the PC message, return step 203 then by PCR message.

This shows that by above-mentioned steps 201～step 212, SSP and SCP can cooperate collection number and the number analysis operation that realizes subscriber dialing.

But the process of using above-mentioned collection number and number analysis also has following limitation:

1. because under normal conditions, SCP needs repeatedly to carry out could realizing complete collection number and number analysis alternately with SSP, causes the load between SSP and the SCP to increase, and can not guarantee the response speed of subscriber dialing, causes the increase of time delay.

2. because the current pre-collection number length that said method SCP needs repeated calculation SSP to report causes SCP to handle relative complex, greatly increased the loss of system resource.

Summary of the invention

In view of this, the object of the present invention is to provide a kind of method of intelligent network collecting number, simplify SSP and the SCP processing procedure in collecting number.

For achieving the above object, the invention provides a kind of method of intelligent network collecting number, store simple prefix table in the service control point in advance, store detailed prefix table in the Service Switching Point, this method may further comprise the steps:

A1, service control point number by obtaining the calling subscriber by turn and dialled with Service Switching Point mutual, service control point is whenever received an item sign indicating number, all judge the whole numbers received whether with simple prefix table in the unique coupling of prefix, if, then service control point is to the number of the being received analysis that collects the digits, and informing business exchanging point number receiving analytic process finishes, then execution in step A21, otherwise, return execution in step A1;

A21, Service Switching Point be according to the prefix of unique coupling in the steps A 1, and the pairing maximum number of this prefix of retrieval is long in self detailed prefix table, determines that then the length of current advance number is: maximum number is long and collected the poor of whole number lengths;

A22, Service Switching Point judge that the number of being received is Home Network number or outer net number, if Home Network number, then Service Switching Point reports number according to current advance number length to service control point, if outer net number, then Service Switching Point reports service control point according to current pre-collection number length with the number that is obtained again by after mutual with the outer net switching node;

A3, the Service Switching Point informing business control point process that collects the digits finishes.

Described steps A 1 may further comprise the steps:

Mutual by with Service Switching Point of A11, service control point obtains the first number that the calling subscriber dialled;

A12, service control point mate the prefix in the whole numbers received and the simple prefix table of self storing, judge then the whole numbers received whether with simple prefix table in the unique coupling of prefix, if, then service control point carries out basic number analysis to whole numbers of being received, otherwise, service control point mutual by with Service Switching Point obtains the next bit number that the calling subscriber dialled, and returns execution in step A12;

A13, service control point informing business exchange point number analysis process finish.

The steps A 3 described Service Switching Point informing business control points method that process finishes that collects the digits is: Service Switching Point sends to service control point and indicates the Initial Detection Point message that the process that collects the digits finishes.

Steps A 11 described service control points by the mutual method that obtains the first number that the calling subscriber dials with Service Switching Point are: service control point at first sends to Service Switching Point and collects number request message, the length that indicates the current pre-collection number of Service Switching Point is 1, then, Service Switching Point sends to service control point by collecting the number response message with the first number that the calling subscriber dialled;

Steps A 12 described service control points by the method that the mutual acquisition calling subscriber with Service Switching Point dials the next bit number are: service control point at first sends to Service Switching Point and collects number request message, indicating Service Switching Point, to collect the length of number in advance be 1, then, Service Switching Point sends to service control point by collecting the number response message with the next bit number that the calling subscriber dialled;

The method that steps A 13 described service control point informing business exchange point number analysis processes finish is: service control point sends to Service Switching Point and directly finishes connection message, indicates the number analysis process and finishes.

This method further comprises: in the time interval that service control point is each and Service Switching Point is mutual, Service Switching Point is stored the number that the calling subscriber imports temporarily.

The calling subscriber of described interim storage Enter Number for: except that the number of Service Switching Point to service control point reports number.

Described simple prefix table comprises: prefix, Home Network attribute and prefix attribute.

Described detailed prefix table comprises at least: prefix and maximum number are long.

Described detailed prefix table further comprises: The Minimum Number Length, maximum number length, Home Network attribute, prefix attribute and service attribute.

Use the present invention,, finish and collect number and number analysis, simplified SSP and the SCP processing procedure in collecting number by SSP and SCP cooperating.Particularly, the present invention has following beneficial effect:

1. the present invention is after SCP can be with the number and the unique coupling of prefix in self simple prefix table received, SSP is with the disposable SCP that reports of collected Remaining Number, reduced the interaction times of SSP and SCP, simplify the flow process of collecting number and number analysis, reduced the load between SSP and the SCP.

2. the present invention can determine before the prefix of unique coupling at SCP, SSP adopts the method report by turn, and after SCP determines the prefix of unique coupling, and SSP is disposable to report all Remaining Numbers, therefore SCP need not to carry out the calculating of advance number length, has reduced the complexity of SCP.

Description of drawings

Fig. 1 is the flow chart of existing intelligent network collecting number method.

Fig. 2 is for collecting the flow chart of number and number analysis part in the existing intelligent network collecting number method.

Fig. 3 is for collecting the flow chart of number and number analysis part in the intelligent network collecting number method of the present invention.

Embodiment

For making purpose of the present invention, technical scheme clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.

The present invention is a kind of method of intelligent network collecting number, its basic thought is: at needs the calling subscriber is dialled the number when collecting number and number analysis, by SSP and SCP cooperating, SSP at first adopts the mode that sends by turn, the number that the calling subscriber dialled is offered SCP, up to SCP with the number received and the unique coupling of prefix in self simple prefix table; Then SSP collects all Remaining Numbers and carries out number analysis under the control of SCP; Trigger SCP by the end connection message that has increased special identifier at last.

The present invention still adopts collection number method shown in Figure 1, after calling subscriber's off-hook trigger intelligent business, carries out the caller attributes analysis by SCP that is:, with the IN service of determining that current calling subscriber contracts, as color dial tone etc.; Then, SCP connects the playback resource, and the color dial tone of correspondence is played to current calling subscriber; Then, SSP collects number and number analysis under the control of SCP, and after finishing aforesaid operations, discharges the playback resource that is connected, and finishes to play color dial tone.

As shown in Figure 3, the collection number and the number analysis method of the present invention's employing may further comprise the steps:

Step 301.SCP mutual by with SSP obtains the first number that the calling subscriber dialled.

In this step, SCP at first sends to SSP and collects number request PC message, and the length that indicates the current pre-collection number of SSP among this PC is 1; Also stored the corresponding relation of calling subscriber and dial-up prompt sound coding in addition among the SCP, so SCP also carries current calling subscriber's dial-up prompt sound coding in this PC.

Then, SSP is coded in self according to the dial-up prompt sound in the PC message and searches out corresponding audio files, and plays this audio file to the calling subscriber; After the calling subscriber began dialing, SSP sent to SCP by collecting number response PCR message with the first number that the calling subscriber dialled.

Step 302～305.SCP mates the prefix of number of being received and the simple prefix analysis table of self storing, then SCP judge the number received whether with simple prefix table in the unique coupling of prefix, if then SCP carries out basic number analysis to whole numbers of being received; Otherwise SCP is by obtaining the next bit number that the calling subscriber dialled with the mutual of SSP, and returns execution in step 302.

Store simple prefix table as shown in table 1 among the SCP, comprise projects such as prefix, Home Network attribute, prefix attribute in this prefix table.

Prefix	The Home Network attribute	The prefix attribute
Prefix	The Home Network attribute	The prefix attribute	114	Be	Special service
17909	Be	IN service	114	Be	Special service
17909	Be	IN service	17909300	Be	Intelligence shifts

Table 2

SCP at first will come from the number of SSP and the prefix in self simple prefix table partly is complementary herein, and judge whether unique coupling of this number and prefix.If the number that SCP received is only identical and all inequality with other prefix with a prefix, then think number and the unique coupling of being received of the prefix in the prefix table; Otherwise, think that number and the prefix in the prefix table received are not unique couplings.

Because after calling subscriber dialing, SSP sends to SCP with the first item sign indicating number earlier, thus SCP should the first place number and self simple prefix table in prefix compare one by one, if unique coupling, then SCP carries out basic number analysis to whole numbers of being received; If not unique coupling, then SCP is mutual with SSP once more, obtains the next bit number.

SCP is by sending the mode of collecting number request PC message to SSP once more, and notice SSP sends the next bit number.The length that this moment, SCP not only indicated current pre-collection number in this PC message is 1, and because the calling subscriber can't hear any sound in the time interval of dialling adjacent two item sign indicating numbers, therefore also can carry quiet indication among this PC, SSP is to calling subscriber's shielded sound for notice.After SSP receives PC message, in to current calling subscriber's shielded sound, the next bit number is sent to SCP by collecting number response PCR message.SCP carries out number analysis once more, is about to the number received and the prefix in self simple prefix table and mates, and under the situation of unique coupling, determine to have collected the related calling information of number, and whether as this number correspondence is IN service etc.

For example: the number that the calling subscriber dialled is 1790901012345678, and then SSP is under the control of SCP, with this number SCP that starts anew to send to by turn; SCP whenever receives an item sign indicating number, just will change number into and combine with in the past received number, partly is complementary with prefix in the table 2; When SCP receives preceding 5 item sign indicating numbers, have 17909 identical with received number in the table 2 with 17,909,300 two prefixes, therefore SCP is mutual with SSP once more, get access to the 6th item sign indicating number, the number that this moment, SCP received is 179090, and have only 17909 prefixes and 179090 to be complementary in the table 2, then SCP stops to send number-accepting request to SSP, and carries out number analysis according to pairing Home Network attribute of 17909 these prefixes and prefix attribute in the table 2.

Because calling subscriber's dialing is continuous, but the number analysis that carries out on the SCP is segmentation, be that SCP many times sends PC to SSP, require SSP to provide the number of collecting to it by turn, by SCP all numbers of receiving are carried out analysis-by-synthesis then, so SSP according to PC after SCP returns the number of having collected, calling subscriber's dialing information still can be sent to SSP constantly, therefore SSP can continue to collect number, require before SSP provides the number that next bit collects the number that SSP can temporary transient storage collects at SCP.

Step 306.SCP sends the tc_end+Connect message that increases special identifier to SSP, and the number analysis process that indicates SCP finishes.

After SCP can uniquely determine to come from the pairing prefix of number and attribute of SSP, SCP need not to proceed number analysis again.Therefore in this step, SCP sends the direct end that carries the dial-up prompt message breath of playing to current calling subscriber to SSP and connects tc_end+Connect message.The effect of tc_end+Connect message is: indicate the number analysis process that SCP carries out to SSP and finish.

Step 307.SSP determines that the length of current pre-collection number is: maximum number grow-has been collected the length of number.

Also have a prefix table on the SSP, the content of this prefix table is identical with table 1, promptly comprises projects such as prefix, The Minimum Number Length, maximum number length, Home Network attribute, prefix attribute, service attribute and remarks.SSP this moment is retrieved in the prefix table of self according to SCP determined prefix in the number analysis process, and it is long to find the pairing maximum number of this prefix.Then, SSP determines that the length of current pre-collection number is: maximum number grow-has been collected the length of number.

Step 308～310.SSP judges that the number of being received is Home Network number or outer net number, if the Home Network number, then SSP reports number according to current pre-collection number length to SCP; If the outer net number, then SSP reports SCP according to current pre-collection number length with the number that is obtained again by after mutual with the outer net switching node.

SSP at first retrieves the Home Network attribute of this prefix in the prefix table of self according to determined prefix, promptly collected number still is the outer net number for the Home Network number; If Home Network number, because SSP directly links to each other with the switch at calling subscriber place, the number that SSP can directly obtain the calling subscriber and dialled, and all numbers that this calling subscriber dialled all are stored on the SSP, therefore SSP reports the Remaining Number that the calling subscriber dialled to SCP, and the length of the number that reports this moment is the determined current pre-collection number length of SSP in the step 306; If outer net number, because on the outer net switching node that number temporarily is stored in this user place switch links to each other that the calling subscriber dialled, therefore SSP carries out alternately with the outer net switching node earlier, obtain remaining number, and then accessed Remaining Number is sent to SCP according to current pre-collection number length.

Step 311.SSP sends to SCP and carries the Initial Detection Point message id P that secondary triggers sign, indicates this moment for SSP triggers the secondary of SCP, shows that the process that collects the digits finishes.

After SSP reports SCP with whole numbers that the calling subscriber dialled, send the Initial Detection Point message id P that carries secondary triggering sign to SCP, notice SCP collects number and finishes.And because SSP sent IDP message one time to SCP in the step 101 of Fig. 1, then SSP indicates in the IDP of this step message and for SSP the secondary of SCP is triggered this moment.

The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1, a kind of implementation method of collecting number is characterized in that, stores simple prefix table in the service control point in advance, stores detailed prefix table in the Service Switching Point, and this method may further comprise the steps:

2, implementation method as claimed in claim 1 is characterized in that, described steps A 1 may further comprise the steps:

3, implementation method as claimed in claim 1 is characterized in that, the steps A 3 described Service Switching Point informing business control points method that process finishes that collects the digits is: Service Switching Point sends to service control point and indicates the Initial Detection Point message that the process that collects the digits finishes.

4, implementation method as claimed in claim 2, it is characterized in that, steps A 11 described service control points by the mutual method that obtains the first number that the calling subscriber dials with Service Switching Point are: service control point at first sends to Service Switching Point and collects number request message, the length that indicates the current pre-collection number of Service Switching Point is 1, then, Service Switching Point sends to service control point by collecting the number response message with the first number that the calling subscriber dialled;

5, implementation method as claimed in claim 1 is characterized in that, this method further comprises: in the time interval that service control point is each and Service Switching Point is mutual, Service Switching Point is stored the number that the calling subscriber imports temporarily.

6, implementation method as claimed in claim 5 is characterized in that, the calling subscriber of described interim storage Enter Number for: except that the number of Service Switching Point to service control point reports number.

7, implementation method as claimed in claim 1 is characterized in that, described simple prefix table comprises: prefix, Home Network attribute and prefix attribute.

8, implementation method as claimed in claim 1 is characterized in that, described detailed prefix table comprises at least: prefix and maximum number are long.

9, implementation method as claimed in claim 8 is characterized in that, described detailed prefix table further comprises: The Minimum Number Length, maximum number length, Home Network attribute, prefix attribute and service attribute.