CN100496144C - System and method for realizing urgent calling - Google Patents
System and method for realizing urgent calling Download PDFInfo
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- CN100496144C CN100496144C CNB2006100359039A CN200610035903A CN100496144C CN 100496144 C CN100496144 C CN 100496144C CN B2006100359039 A CNB2006100359039 A CN B2006100359039A CN 200610035903 A CN200610035903 A CN 200610035903A CN 100496144 C CN100496144 C CN 100496144C
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Abstract
The system thereof comprises: a radio access control device for receiving the emergency call from WLL users, a call control device and an IP network. At least one V5 user port resource for providing emergency call for specific WLL user is reserved in radio access control device and the call control device. The specific WLL users comprise those WLL users nearby accessed and registered on the radio access control device. With the nearest NGN network or PSTN network, the invention can provides emergency call service function for WLL users.
Description
Technical field
The present invention relates to communication field, refer to a kind of system and method for realizing urgent call especially.
Background technology
With reference to shown in Figure 1, in the prior art, next generation network (Next Generation Network, NGN) generally comprise Radio Access Controller (Radio Access Controller in, RAC) 20 two kinds of communication apparatus of equipment 10 and Softswitch (SoftSwitch), both realize communicating by letter with IP network 30 by media gateway (MG) 40, pass through V5.2 interface access media gateway 40 by RAC equipment 10, then, between IP local area network (LAN) 30 times and Softswitch 20, set up speech media stream by Softswitch 20 control media gateway 40.
Wherein, the NGN network is a kind of business-driven type network, and it adopts the network architecture comprehensively open, that merge, separates fully, calls out to control with carrying by business and calling control and separate fully, thereby realize relatively independent business system, the business that makes is independent of network.Wireless local loop (WLL, Wireless LocalLoop) is to replace cable by wireless signal, connects a kind of technology of user and PSTN (PSTN), comprises wireless access system, dedicated fixed wireless access and fixed cellular system.Softswitch (SoftSwitch) is the nucleus equipment of Circuit Switching Network to Packet Based Network evolution, it also is one of visual plant of next generation network (NGN), it is independent of the bottom bearing protocol, mainly finish major functions such as calling out control, media gateway access control, resource allocation, protocol processes, route, authentication, charging, and all business and diversified third party's business that can provide the available circuit switch to provide to the user.Media gateway (MG) becomes the desired media formats of another kind of network with the media conversion in a kind of network.For example: media gateway can be finished the conversion between the Media Stream of the bearer path of Circuit Switching Network and Packet Based Network, can processing audio, video or T.120, possess the ability of handling this three's combination in any; Can carry out the media conversion of full duplex, can displaying video/audio message, realize other IVR function, also can carry out media conference, also be one of visual plant of next generation network (NGN).Like this, RAC equipment not only can provide every professional abilities such as traditional PSTN, intelligent network, but also the every value-added service based on the NGN network architecture can be provided, and has abundant professional providing capability, has guaranteed the income of operator.
Urgent call be meant dial special service number, as robber and police, fire alarm, ambulance call number etc., generally speaking, no matter whether subscriber arrearage all can successfully breathe out.By the V5.2 agreement as can be known, can there be a plurality of V5 interfaces between same RAC equipment in the NGN network and the same Softswitch, RAC equipment and Softswitch come associated user by V5 interface identify label (V5InterfaceId) and layer 3 address (L3addr), when opening an account, WLL user needs on Softswitch and RAC equipment, to carry out respectively the user data configuration, and user's association realizes by V5InterfaceId and L3addr, define according to standard agreement, a user has only V5InterfaceId and L3addr, the only definite user of V5InterfaceId and L3addr.
Be not difficult to find out, in existing technical scheme, same RAC equipment and Softswitch can only distribute corresponding V5 user port resource for a certain WLL validated user in its network coverage is default, between V5 user port resource and the WLL validated user is to concern one to one, at this moment, the NGN network only allows the WLL validated user in its coverage is provided the function of urgent call; And user of other user such as non-Home Network, the user that do not open an account etc. do not have relevant user data on this RAC equipment and Softswitch, and can't finish emergency call function, the business that has limited the NGN network widely provides function, and the ability that provides urgent call to insert nearby for various WLL users is not provided.
In order to address the above problem, need provide a kind of system and method that emergence call service can be provided for various WLL users.
Summary of the invention
Based on the deficiencies in the prior art, main purpose of the present invention is to provide a kind of system and method that emergence call service can be provided for various WLL users.
In order to achieve the above object, the invention provides a kind of system that realizes urgent call, comprise the Radio Access Controller, call control device and the IP network that are used to receive wireless local loop (WLL) user urgent call, reserve the V5 user port resource that at least one handles the urgent call of radio local loop user in Radio Access Controller and the call control device.Non-corresponding one by one between the V5 user port resource of described reservation and the user, dynamic assignment is used to it when urgent call takes place specific WLL user, described specific WLL user comprises access and not the WLL user of registered user's data on this call control device and Radio Access Controller nearby, as the WLL validated user and the disabled user of non-present networks covering; Described V5 user port resource comprises identify label of V5 interface and layer 3 address.
WLL user's urgent call is received by NGN network or the PSTN network near the user.In the NGN network, described call control device comprises Softswitch and media gateway; In the PSTN network, described call control device comprises switch.Emergence call service is not limited by user's rate situation and user property.
When the V5 user port resource of reserving during, refuse to call out by call control device and/or Radio Access Controller as called end.
The flow process that the user initiates urgent call comprises following step:
(1) on Radio Access Controller and call control device, reserves the V5 user port resource that at least one is used for doing for specific wireless local loop WLL user urgent call;
(2) specific WLL user's emergency call number utilizes the V5 user port resource of described reservation, and Radio Access Controller sends call setup message to call control device;
(3) call control device returns the call setup response message to Radio Access Controller, triggers call establishment;
Wherein, described specific WLL user comprises access and not the WLL user of registered user's data on this call control device and Radio Access Controller nearby.
In step of the present invention (2), further comprise the step of Softswitch according to the call setup message judgement exhalation user property that reports at Radio Access Controller:
A) if having the subscriber data of coupling in the Softswitch, promptly the user property that carries in the call setup message is the WLL validated user, then uses the V5 user port resource of the fixed allocation of Radio Access Controller correspondence to insert calling;
B) if can not find the subscriber data of coupling in the Softswitch, be that the user property that carries in the call setup message is specific WLL user, and when Radio Access Controller judges that urgent call is carried out in this specific WLL user request, then Radio Access Controller distributes the V5 interface identify label of reservation for this user, and the user inserts by the V5 user port resource of reserving and calls out.
Radio Access Controller sends call setup message to call control device, carries the information of user property, on-position and Subscriber Number in the described call setup message.Behind the call setup,, on called phone, show this user's telephone number, and in call record, describe the user profile of caller by the user's that carries in the call setup message on-position and user's physical number.
Compared with prior art, the invention provides a kind of scheme of urgent call, on Radio Access Controller and call control device, reserve at least one and be specifically designed to the V5 user port resource of urgent call, because these V5 user port resources are dynamic assignment, and there is not one-to-one relationship between the WLL user, therefore, V5 user port resource both can Random assignment inserts to any one and the WLL user of registered user's data on this call control device and Radio Access Controller not nearby, provide the emergency call service function by immediate NGN network or PSTN network for WLL user, like this, satisfy the requirement that various WLL users in case of emergency carry out urgent call, enriched the professional providing capability of existing NGN network and PSTN network.
Description of drawings
Fig. 1 is NGN network and a Radio Access Controller typical case networking diagram in the prior art;
Fig. 2 is the mutual networking diagram of Softswitch in the NGN network of the present invention and Radio Access Controller.
Embodiment
By the V5.2 agreement as can be known, can there be a plurality of V5 interfaces between same Radio Access Controller (RAC equipment) and same NGN network or the PSTN network, WLL user carries out urgent call in NGN network or the PSTN network in order to be implemented in, the invention provides a kind of scheme that inserts nearby, basic principle is: one or more V5 user port resource of reservation is specifically designed to finish nearby and calls out on RAC equipment and call control device, non-corresponding one by one between the V5 user port resource of these reservations and the user, specific wireless local loop (WLL) when urgent call takes place in the user dynamic assignment use to it.
In the present invention, the WLL validated user is meant the WLL of registered user's data on this call control device and the RAC equipment user that opens an account; Specific wireless local loop (WLL) user is meant in access and not the WLL user of registered user's data on this call control device and RAC equipment nearby; Here, WLL user comprises the user who opens an account or do not open an account, and whether the user's who opens an account the regional extent of opening an account does not limit in regional extent is opened an account in the network coverage that inserts the Radio Access Controller of calling out.
In the NGN network, call control device comprises Softswitch and media gateway; In the PSTN network, call control device comprises switch.Emergence call service limits except not being subjected to user's rate situation, and not limited by attribute of user, all can initiate urgent call by the call control device of NGN network or PSTN network.
Below be that example is specifically set forth the technical program with the NGN network:
Comprise that in the NGN network (both realize communicating by letter by media gateway (MG) and IP network Radio Access Controller for Radio Access Controller, RAC) 2 two kinds of communication apparatus of equipment 1 and Softswitch (SoftSwitch).
As shown in Figure 2, it is as described below that the user initiates the flow process of urgent call in the NGN network:
(1) on RAC equipment and Softswitch, reserves the V5 user port resource that at least one is used for doing for specific WLL user urgent call;
(2) specific WLL user's emergency call number utilizes the V5 user port resource of described reservation, and RAC equipment sends call setup message (ESTABLISH) to Softswitch;
(3) Softswitch returns call setup response message (ESTABLISH ACK) to RAC equipment, triggers call establishment.
Wherein, described specific WLL user is meant in access and not the WLL user of registered user's data on this call control device and RAC equipment nearby; Carry the information of user property, on-position and Subscriber Number in the described call setup message.
Described V5 user port resource comprises V5 interface identify label (V5InterfaceID) and layer 3 address (L3addr), and RAC equipment and Softswitch come associated user by V5InterfaceID and L3addr.
In step of the present invention (2), further comprise the step of Softswitch according to call setup message (ESTABLISH) the judgement exhalation user property that reports at RAC equipment:
A) if having the subscriber data of coupling in the Softswitch, promptly the user property that carries in the ESTABLISH message is the WLL validated user, then uses the V5 user port resource of the fixed allocation of RAC equipment correspondence to insert calling;
B) if can not find the subscriber data of coupling in the Softswitch, be that the user property that carries in the ESTABLISH message is specific WLL user, and when RAC equipment judges that urgent call is carried out in this specific WLL user request, then RAC equipment distributes the V5 interface identify label of reservation for this user, the user inserts by the V5 user port resource of reserving and calls out, and the V5 interface identify label of these reservations can not be assigned to the WLL validated user.
RAC and Softswitch are by V5 user port resource, it is the call request that V5InterfaceID and L3addr insert the user nearby, simultaneously, information according to the user's who carries in the ESTABLISH message on-position and user's physical number, on called phone, show this user's telephone number, and in the call record of NGN network, the calling user information of calling out is for example described exactly in the ticket.
This shows, urgent call employing for WLL user inserts principle nearby, and WLL user initiates urgent call anywhere, apart from its nearest or nearer RAC equipment, if this user is the user under the RAC equipment for this reason, then use the V5 user port resource of its corresponding fixed allocation; If access and not the WLL user of registered user's data on this call control device and RAC equipment nearby, then call out by distributing the V5 user port resource of reserving to insert, the call treatment of this moment is the same with the ordinary call handling process of WLL validated user, thereby has realized the various users' of WLL urgent call.
Since the V5 user port resource of reserving on RAC equipment and the Softswitch not with the corresponding one by one distribution of attribute according to particular user, therefore, the V5 user port resource of these reservations can not be used as called end, when dialing the V5 user port resource of these reservations, Any user can refuse to call out: 1. directly refusal calling on the Softswitch by dual mode, the related voice prompting directly be refused to call out and be provided to Softswitch can by relevant configuration, as " this number is not used " or the like, thereby realize forbidding the requirement that makes a call to these users; 2. call out by RAC equipment refusal.
In the present invention, call establishment is not limited in the NGN network, also can carry out in the PSTN network; In addition, the Personal Handyphone System user among the WLL user all can realize urgent call nearby in its base station range.
Claims (9)
1. system that realizes urgent call, comprise the Radio Access Controller, call control device and the IP network that are used to receive wireless local loop WLL user urgent call, it is characterized in that: reserve at least one in Radio Access Controller and the call control device and be used to specific WLL user that the V5 user port resource of urgent call is provided; During specific WLL user's emergency call number, utilize the V5 user port resource of described reservation, Radio Access Controller sends call setup message to call control device; Call control device returns the call setup response message to Radio Access Controller, triggers call establishment; Described specific WLL user's urgent call is received by the NGN network near the user; Described specific WLL user comprises nearby and to insert and the WLL user of registered user's data on call control device that inserts and Radio Access Controller not; Non-corresponding one by one between the V5 user port resource of described reservation and the user, dynamic assignment is used to it when urgent call takes place specific WLL user.
2. a kind of system that realizes urgent call as claimed in claim 1, it is characterized in that: described specific WLL user comprises the user who opens an account or do not open an account, whether the user's who wherein, has opened an account the regional extent of opening an account does not limit in regional extent is opened an account in the network coverage that inserts the Radio Access Controller of calling out.
3. a kind of system that realizes urgent call as claimed in claim 1 is characterized in that: the V5 user port resource of described reservation comprises identify label of V5 interface and layer 3 address.
4. a kind of system that realizes urgent call as claimed in claim 1 is characterized in that: in the NGN network, comprise Softswitch and media gateway at described call control device.
5. a kind of system that realizes urgent call as claimed in claim 4 is characterized in that: emergence call service is not limited by user's rate situation or user property.
6. a kind of system that realizes urgent call as claimed in claim 1 is characterized in that: when the V5 user port resource of reserving during as called end, refuse to call out by call control device and/or Radio Access Controller.
7. method that realizes urgent call, it is characterized in that: the flow process that the user initiates urgent call comprises following step:
(1) on Radio Access Controller and call control device, reserves the V5 user port resource that at least one is used for doing for specific wireless local loop WLL user urgent call;
(2) specific WLL user's emergency call number utilizes the V5 user port resource of described reservation, and Radio Access Controller sends call setup message to call control device;
(3) call control device returns the call setup response message to Radio Access Controller, triggers call establishment;
Wherein, described specific WLL user's urgent call is received by the NGN network near the user; Described specific WLL user comprises access and not the WLL user of registered user's data on this call control device and Radio Access Controller nearby, non-corresponding one by one between the V5 user port resource of described reservation and the user, dynamic assignment is used to it when urgent call takes place specific WLL user.
8. a kind of method that realizes urgent call as claimed in claim 7, it is characterized in that: in the described step (2), comprise that further call control device is according to the step of judging the exhalation user property at call setup message that Radio Access Controller reports: if the subscriber data that has coupling in A) in the call control device then uses the V5 user port resource of the fixed allocation of this Radio Access Controller correspondence to insert and calls out; B) if can not find the subscriber data of coupling in the call control device, and when Radio Access Controller judges that urgent call is carried out in described exhalation user request, then Radio Access Controller is the V5 interface identify label that described exhalation user distributes reservation, and described exhalation user inserts by the V5 user port resource of reserving and calls out.
9, a kind of method that realizes urgent call as claimed in claim 8, it is characterized in that: the information of carrying user property, on-position and Subscriber Number in the described call setup message, behind the call setup, by the user's that carries in the call setup message on-position and user's physical number, on called phone, show described exhalation user's telephone number, and in call record, describe the user profile of caller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100359039A CN100496144C (en) | 2006-06-12 | 2006-06-12 | System and method for realizing urgent calling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100359039A CN100496144C (en) | 2006-06-12 | 2006-06-12 | System and method for realizing urgent calling |
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| Publication Number | Publication Date |
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| CN1984441A CN1984441A (en) | 2007-06-20 |
| CN100496144C true CN100496144C (en) | 2009-06-03 |
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| CNB2006100359039A Expired - Fee Related CN100496144C (en) | 2006-06-12 | 2006-06-12 | System and method for realizing urgent calling |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101466083B (en) * | 2007-12-18 | 2010-12-08 | 华为技术有限公司 | Emergency call method and apparatus |
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| CN1984441A (en) | 2007-06-20 |
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Granted publication date: 20090603 Termination date: 20130612 |