CN1319302A - Method for processing call establishment requests - Google Patents
Method for processing call establishment requests Download PDFInfo
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- CN1319302A CN1319302A CN 99811184 CN99811184A CN1319302A CN 1319302 A CN1319302 A CN 1319302A CN 99811184 CN99811184 CN 99811184 CN 99811184 A CN99811184 A CN 99811184A CN 1319302 A CN1319302 A CN 1319302A
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- setup requests
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/08—Trunked mobile radio systems
Abstract
The invention relates to a method for processing a call establishment request in a telecommunication system, comprising the steps of receiving a call establishment request, deducing the destination of the call, and forwarding the call establishment request to the destination of the call for establishing a call. In order that a system operator could offer more flexible solutions to the subscribers the method comprises the steps of: defining several parallel number spaces for use, and defining numbers in said several parallel number spaces for at least some of the system terminals, receiving the call establishment request for establishing a new call, deducing the number space, to which the number included in the call establishment request belongs, and the destination of the call to be established on the basis of the line data included in the call establishment request and the source of the call establishment request, converting the number included in the call establishment request from the format according to the deduced number space to a number according to the format number space required by the destination of the call, and replacing the number included in the call establishment request by said number according to the number space required by the destination of the call before forwarding the call establishment request.
Description
The present invention relates to handle the setup requests in the telecommunication system, relate in particular to the FH-number transform of the new calling that will set up.Below, mainly the present invention is described for example, although the present invention also can be applicable to other telecommunication systems with reference to mobile system.
In existing GSM mobile system (global system for mobile communications), the dialing that sends in the setup requests of the system relevant with the new calling that will set up is the needed form of public switch telephone network, and and this calling be the calling between the travelling carriage, the calling of from the mobile system to the public switch telephone network or to the PABX net, being carried out, or from public switch telephone network or irrelevant to moving to the calling that travelling carriage carries out from the PABX net.Here, the PABX net is meant the network that comprises one or more private automatic branch exchanges (PABX).So, comprise that the setup requests of the number of public switch telephone network form is sent to mobile system so that analyze.Here, setup requests is meant, when the user passes through its terminal dialing in order to set up new calling, is controlled the integral body that one or more signaling message or frame constituted of process by the calling of the system of sending to.Term " calling " is meant any can connection by the phone that telecommunication system forms, as audio call or data call.The public switch telephone network form is meant the MSISDN form, and it comprises three parts, is made of country code, domestic area code and Subscriber Number.The length of country code can not surpass three bit digital, and the total length of Mobile Subscriber International ISDN Number is at most 15 bit digital when calling out (but need not country code) in same country.
Above-mentioned public switch telephone network form and so-called parsing tree (for example in gsm system, utilizing this parsing tree to analyze contained number in the setup requests by attaching position register (HLR)) are very inflexible and fixing schemes.For existing mobile system, the chance of the number relevant with particular group of users that the user will use for example must be provided flexibly with regard to the network operator, exist the restriction of certain degree.These restrictions for example may be present in and not only comprise mobile network terminal but also comprise fixedly more such user's groups of PABX network termination.
Thought of the present invention is, eliminates this restriction that may occur in the above-mentioned existing scheme, and the user who provides a kind of scheme, this scheme that system operator be can be to carry out Internal call group provides than scheme more flexibly in the past.Utilize the method that is used for handling the setup requests of telecommunication system of the present invention can reach this purpose, this method may further comprise the steps: receipt of call is set up request, infer the target of calling and setup requests is forwarded to target, call out so that set up.Method of the present invention is characterized in that, several that comprise the steps: to determine to use are the column number district also, and in described several and column number district, determine number at least some system terminals, reception is used to set up the setup requests of new calling, infer the number district under the number contained in the setup requests and the target of the calling that will set up according to the source of track data contained in the setup requests and setup requests, with number contained in the setup requests from replacing contained number in the setup requests for using with the corresponding number of calling out in the desired number of target district with before forwarded call is set up with the corresponding described number in the desired number of the target of calling out district with the corresponding format conversion in number district of being inferred.
The invention still further relates to a kind of system that is used to handle setup requests, this system comprises a master control process and an analysis process at least, in view of the above, analysis process is inferred the target of the setup requests that the master control process receives, and the forwarding of master control process is used to set up the setup requests of calling.System of the present invention is characterized in that, described system uses several also column number districts, in this case, contained number can be the number in arbitrary district in used number district in the setup requests, analysis process is inferred number district under the number contained in the target of calling and the setup requests according to the source of track data in the setup requests and setup requests, this system also comprises the conversion process, the number district that this process is inferred according to number contained in the setup requests and analysis process, from memory, retrieve one with setup requests in the contained corresponding number of number, described retrieval number is the number in the desired number of the target district of calling, and this system used the number that retrieves from memory by the conversion process to replace contained number in the setup requests before request is set up in the forwarded call of master control process then.
The present invention is based on such thought, when several and the column number district that in system of the present invention, have determined to use, can make and call out with relevant therewith to send into dialing more flexible.So, the user of system can utilize with the used corresponding number in any number district and call out, in this case, the analysis process of system is carried out the deduction in used number district, conversion process then becomes a kind of like this form with the FH-number transform in the used number district, promptly in order to be convenient to calling is sent to the form that this number of suitable target (promptly sending to suitable network) should adopt.According to implementation, the number in used number district can be two or more.
The remarkable advantage of the solution of the present invention is that it makes can handle the number that belongs to the jack per station district neatly, therefore can send setup requests between the system that uses the jack per station district.The number that the deduction in used number district needn't only be sent into based on analysis, and can when inferring the number district, utilize the source of setup requests.The Source Description of setup requests for example setup requests from which system.When inferring the number district, also can utilize track data contained in the setup requests is the information of the indicating call network that should be sent to.
When the treatment system of setup requests by modularization so that system is divided into several independently during subprocess, can realize handling the system of various types of callings with dedicated mode.If desired, these subprocesss also can be distributed in the heterogeneous networks unit of network, like this, can be in suitable network element the different subprocesss of executive system.This modular system can also provide such advantage: when proposing new the requirement, system can be changed very neatly.
Disclosed among the preferred implementation of method and system of the present invention such as attached dependent claims 2-3 and the 5-8.
Below, the present invention is described in detail in detail with reference to the accompanying drawings for example, wherein:
Fig. 1 be the explanation method of the present invention first preferred implementation flow chart and
Fig. 2 is the block diagram of first preferred implementation of explanation system of the present invention,
Fig. 3 shows and calls out TETRA-PSTN,
Fig. 4 shows and calls out TETRA-PABX,
Fig. 5 show call out PSTN-TETRA and
Fig. 6 shows and calls out PABX-TETRA.
Fig. 1 is the flow chart of first preferred implementation of explanation method of the present invention.For example, in TETRA mobile network (Terrestrial Trunked Radio), when handling the setup requests relevant, can utilize the flow chart among Fig. 1 with the new calling that will set up.
In piece A, in used also column number district, determine number for the travelling carriage of system.In TETRA net, from the travelling carriage that can call out in the TETRA net to public switch telephone network with to the PABX net of its specific unit, each travelling carriage that is necessary in the TETRA net determines that a Subscriber Number is ITSI number (a special-purpose TETRA user identifier).Travelling carriage from the travelling carriage of TETRA net to another TETRA net can directly select for use described ITSI number to call out.If relate to two travelling carriages of same TETRA net, so, to another travelling carriage, can utilize SSI number (short user identifier) directly to call out from a travelling carriage.Also should be TETRA net travelling carriage and determine public switch telephone network number, i.e. a Mobile Subscriber International ISDN Number.To TETRA net travelling carriage, can utilize Mobile Subscriber International ISDN Number to call out from public switch telephone network.In addition, also be necessary for travelling carriage and determine the number relevant with particular group of users, FSSN number (short codes relevant with special group) is called out travelling carriage from the PABX net of unit so that belong to the intercommunication phone number that the terminal of the specific unit of travelling carriage can the unit of utilization.Therefore, system uses three number districts arranged side by side, and each number district comprises that all a permission carries out for example number of audio call to same travelling carriage.
In piece B, receive new setup requests.At this moment, this setup requests comprises an indication this new number of calling out the terminal that will be established to, i.e. number of user B at least.Contained number can be the number in arbitrary district in the determined number district that is used for system, i.e. ITSI, MSISDN or FSSN number in the setup requests.Setup requests (being an integral body that sends to the calling control of system by one or more signaling messages here) in fact also comprises other data except the identifier that comprises user B, such as the identifier of user A, its new calling that will set up of indication from terminal.
Piece C infers which number district the identifier of user B contained in the setup requests belongs to.In addition, also infer the target of calling, promptly call out to be sent to which network.
If this setup requests is sent track data from described travelling carriage so from TETRA system travelling carriage, the network that its indicating call should be sent to.In other words the deduction in the number district in the setup requests under the contained number, thinks that the desired number of the indicated target of this number and track data district adapts also based on described track data.In fact, user of mobile station for example with call out relevant dialing before by sending into predetermined number or network (for example PSTN or PABX) for example by indicating him calling out to travelling carriage by the predetermined key in the travelling carriage.Then, travelling carriage sends to TETRA net by radio path with track data in available mode in the FH-number transform for example.
If setup requests itself is inferred call targets according to the source of setup requests so from the somewhere except that TETRA net travelling carriage.If the source of setup requests is the inter-exchange circuit of PABX net public switch telephone network or unit, so, the target that the TETRA net is considered to call out.Can also infer the number district of number contained in the setup requests according to the source of calling out.If the source is the switched circuit of public switch telephone network, so, suppose that number contained in the setup requests is the MSISDN form, correspondingly, if the source is the inter-exchange circuit of the PABX net of unit, so, suppose that number contained in the setup requests is the FSSN form.
In piece D, FH-number transform contained in the setup requests is arrived the desired number of target district.Conversion can be carried out as the case may be, for example, retrieves map table from memory, and this tabular has gone out corresponding each other number in the jack per station district.Perhaps, the number of each travelling carriage in the jack per station district can be stored in its user data.If identify the travelling carriage that its number just is being transformed this moment, so, can carry out conversion by the number that from the user data of described travelling carriage, retrieves in the suitable number district.
In piece E, in the setup requests in the contained conversion of number with piece D resulting number replace, this number is the form in the desired number of the call targets district.
In piece F, setup requests is forwarded to controlling call, thereby can sets up new calling.
Fig. 2 is the block diagram of first preferred implementation of explanation system of the present invention.For example, in the TETRA net, can utilize being used to shown in Fig. 2 to handle the system 2 of setup requests.
The system 2 that being used to shown in Fig. 2 handled setup requests is made of some module or subprocesss by master control process 3 controls of system, and these modules or subprocess are used to handle this and call out desired setup requests.According to the implementation of system, can be in the heterogeneous networks unit each other among carry out subprocess, in other words, the software that in different telephone exchanges, will carry out for example can be discuss.Setup requests sends to master control process 3 from Call Control Unit 1, and after being used to set up the FH-number transform of calling, setup requests turns back to unit 1 again.
All modules shown in Fig. 2 are not all will use in each is called out, and the order that these modules participate in FH-number transform depends on and relates to which kind of calling.Master control process 3 is responsible for transmitting required data between the disparate modules.These modules are worked like this: some parameter is sent to this as the starting data, and these modules obtain some results according to these parameters then, and master control process (if necessary) can be sent to another module as the starting data with the result.These modules are carried out work independently of each other.
The number identification module 5.1 of analysis process 5 receives for example dialing, type of service, customer parameter, unit parameter, track data, cell code, inter-exchange circuit identifier, calling subscriber's number and time and date.Number district under the target that number identification module 5.1 go out to be called out according to described inferred from input data and the number of setup requests.Call targets parameter and call type parameter that described data are obviously produced from number identification module 5.1.
Detecting process 7 is carried out necessary inspection, so that infer the calling that whether allows setup requests related.Whether the inspection module 7.1 of calling privilege goes out this user according to type of call, customer parameter and unit parametric inference can carry out the calling of described type.CLIP/CLIR/COLP module 7.2 is inferred recipient (CLIP, the call line identification indication that calling subscriber's number (identifier of user A) is whether known and whether allow rear subscriber number is sent to calling according to user data; CLIR, the call line identification restriction; And COLP, connect the identification of lines indication).Transport module 7.3 checks according to the ITSI number whether described user has activated call forward.Transport module obtains such data, the target (TETRA/PSTN/PABX) that number that whether this data indicating call is transmitted and be activated, call forward is activated and call forward are activated.
Fig. 3 shows and calls out TETRA-PSTN, the calling that representative is carried out to the public switch telephone network user from TETRA net mobile station MS.Fig. 3-6 shows different callings, so that the order of explanation executive process.But, data may not direction as shown by arrows flow.In fact, data can send to another process from a process by the master control process shown in Fig. 2.
Among Fig. 3, identification process 4 identification is based on the travelling carriage (user) of ITSI number, based on the cell code of the data that the base station sent with based on the user's of user of mobile station data unit.It is the calling that is sent to public switch telephone network that analysis process 5 detects this calling according to track data.Then, the number of analysis process supposition user B be the MSISDN form and need not any change.On the contrary, when calling was calling from travelling carriage (sub-district is known), the number that the number identification module detects the calling subscriber was that the identifier of user A is the ITSI form, therefore needs conversion.
Detecting process 7 is inferred according to user data that these call out to be sent to public switch telephone network and to call out call forward from described travelling carriage and is not activated.If do not allow this calling, in piece 9, the processing of setup requests is interrupted, so call failure so.
At last, detecting process 7 checks whether the identifier of user A will send to user B.Then, setup requests is turned back to calling control by the master control process, so that be established to the calling of user B.
Fig. 4 shows and calls out TETRA-PABX, the calling that the PABX net of representative from TETRA net mobile station MS to the specific unit of travelling carriage carries out.Identification process 4, analysis process 5 and detecting process 7 its operations except this moment analysis process 5 according to track data detect this calling be sent to the calling of PABX net identical with the situation described in Fig. 3.Then, its form of number of analysis process supposition user B is to net corresponding form and need not any change with PABX.Therefore, number B only makes amendment by increasing/remove indivedual numbers in modification process 8.On the contrary, be the FSSN form with the FH-number transform of the user A of ITSI form, promptly be transformed to the number in the number district, thereby make the user of PABX net can call out mobile station MS.After this, the processing of setup requests mode is as shown in Figure 3 carried out.
Fig. 5 shows and calls out PSTN-TETRA, the calling that representative is carried out from public switch telephone network terminal 10 to TETRA net mobile station MSs.Then, to detect the source of setup requests be public switch telephone network to analysis process 5; So, receive this setup requests from inter-exchange circuit XX (the inter-exchange circuit between TETRA net and the PSTN net).Then, in the analysis process supposition setup requests contained number be the identifier of the identifier of user B and user A all be the PSTN form and the target of calling out is the TETRA net.
At last, modification process 8 is revised the number of user A and user B by increasing/remove number on request, so that obtain the number of predetermined format.Then, setup requests is turned back to calling control by the master control process.
Fig. 6 shows and calls out PABX-TETRA, the calling that representative is carried out from a kind of like this terminal of PABX network termination 10 to TETRA net mobile station MSs of utilizing the number relevant with particular group of users.Then, the source that identification process 4 detects setup requests is an inter-exchange circuit 14, i.e. special P ABX net.In view of the above, identification process 4 identifies described unit, thereby the user that it retrieves described unit organizes data.
The source that analysis process 5 detects setup requests is the PABX net, and promptly setup requests is to receive from inter-exchange circuit 14 (the inter-exchange circuit between PABX net and the TETRA net).Then, contained number is that its form of identifier of the identifier of user B and user A all is to net corresponding form with PABX and the target of calling out is the TETRA net in the analysis process supposition setup requests.
Should be appreciated that above description and accompanying drawing only are intended to illustrate the present invention.Therefore, the present invention also can be applicable to other system, and not only is applicable to the above TETRA system of describing for example.For those of skill in the art, obviously, under the prerequisite of disclosed scope of the present invention and thought, the present invention can change and revise in a different manner in not deviating from the appended claims book.
Claims (8)
1. method that is used for handling the setup requests of telecommunication system, this method may further comprise the steps:
Receipt of call is set up request,
Infer calling target and
The setup requests that will be used to set up calling is forwarded to the target of calling, it is characterized in that, comprises the steps:
Definite several and column number district that will use, and in described several and column number district, determine number at least some system terminals,
Reception is used to set up the setup requests of new calling,
Infer the number district under the number contained in the setup requests and the target of the calling that will set up according to the source of track data contained in the setup requests and setup requests,
With number contained in the setup requests from the corresponding format conversion in number district of being inferred for the corresponding number of calling out in the desired number of target district and
Before request is set up in forwarded call, use with the corresponding described number in the desired number of the target of calling out district and replace contained number in the setup requests.
2. the method for claim 1 is characterized in that, determines at least two number districts arranged side by side, for use.
3. the method for claim 1, it is characterized in that, described telecommunication system is the mobile system that comprises some terminals, determine number according at least three different number districts for these terminals, so that contained number can be in the public switch telephone network, in the PABX net or the number in the mobile system in the setup requests.
4. system that is used to handle setup requests, this system comprises a master control process (3) and an analysis process (5) at least, in view of the above, analysis process (5) is inferred the target of the setup requests that the master control process receives, and master control process (3) forwarding is used to set up the setup requests of calling, it is characterized in that:
Described system uses several and column number district, and in this case, contained number can be the number in arbitrary district in used number district in the setup requests,
Analysis process (5) is inferred number district under the number contained in the target of calling and the setup requests according to the source of track data in the setup requests and setup requests,
This system also comprises conversion process (6), the number district that this process is inferred according to number contained in the setup requests and analysis process (5), from memory, retrieve one with setup requests in the contained corresponding number of number, described retrieval number is the number in the desired number of the target district of calling, then
This system (3) used the number that retrieves from memory by the conversion process to replace contained number in the setup requests before request is set up in master control process (3) forwarded call.
5. system as claimed in claim 4 is characterized in that, analysis process (5) is inferred:
Contained its form of number is and the corresponding form in public switch telephone network number district in the setup requests, if the target of track data indicating call is public switch telephone network (PSTN),
Contained its form of number is and the corresponding form in PABX network No. sign indicating number district in the setup requests, if the target of track data indicating call is the PABX net,
The target of calling out is mobile network (TETRA), and contained its form of number is and the corresponding form in PABX network No. sign indicating number district in the setup requests, if the source of setup requests be the PABX net the inter-exchange circuit and
The target of calling out is mobile network (TETRA), and contained its form of number is and the corresponding form in public switch telephone network number district in the setup requests, constitutes if the source of setup requests is an inter-exchange circuit by public switch telephone network.
6. as claim 4 or 5 described systems, it is characterized in that analysis process (5) is two independent processes of separating with master control process (6) with conversion process (6).
7. as the described system of claim 4-6, it is characterized in that master control process (3), analysis process (5) and conversion process (6) are dispersed in the different network element.
8. as the described system of claim 4-7, it is characterized in that the described system (2) that is used to handle setup requests is the part of TETRA mobile system.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI982026 | 1998-09-21 | ||
| FI982026A FI105980B (en) | 1998-09-21 | 1998-09-21 | Procedure for processing a call setup request |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1319302A true CN1319302A (en) | 2001-10-24 |
Family
ID=8552525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99811184 Pending CN1319302A (en) | 1998-09-21 | 1999-09-20 | Method for processing call establishment requests |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1121796A2 (en) |
| CN (1) | CN1319302A (en) |
| AU (1) | AU5865299A (en) |
| FI (1) | FI105980B (en) |
| WO (1) | WO2000018090A2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1898657A1 (en) * | 2006-09-06 | 2008-03-12 | Nederlandse Organisatie voor Toegepast-Natuuurwetenschappelijk Onderzoek TNO | Method and system for making a connection between a fixed or internet terminal and a mobile terminal |
| US9628298B2 (en) * | 2013-05-13 | 2017-04-18 | Avaya Inc. | Routing technique |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5247571A (en) * | 1992-02-28 | 1993-09-21 | Bell Atlantic Network Services, Inc. | Area wide centrex |
| JPH06334761A (en) * | 1993-05-25 | 1994-12-02 | Hitachi Commun Syst Inc | Abbreviated dialing system from digital public telephone set |
| FI98185B (en) * | 1993-08-26 | 1997-01-15 | Finland Telecom Oy | Method of establishing a connection |
-
1998
- 1998-09-21 FI FI982026A patent/FI105980B/en active
-
1999
- 1999-09-20 EP EP99946203A patent/EP1121796A2/en not_active Withdrawn
- 1999-09-20 WO PCT/FI1999/000772 patent/WO2000018090A2/en not_active Application Discontinuation
- 1999-09-20 AU AU58652/99A patent/AU5865299A/en not_active Abandoned
- 1999-09-20 CN CN 99811184 patent/CN1319302A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000018090A3 (en) | 2000-06-08 |
| AU5865299A (en) | 2000-04-10 |
| WO2000018090A2 (en) | 2000-03-30 |
| FI982026A0 (en) | 1998-09-21 |
| EP1121796A2 (en) | 2001-08-08 |
| FI105980B (en) | 2000-10-31 |
| FI982026A (en) | 2000-03-22 |
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