CN100407871C - Call processing method and system for radio local loop user in next generation network - Google Patents
Call processing method and system for radio local loop user in next generation network Download PDFInfo
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- CN100407871C CN100407871C CN2005101018588A CN200510101858A CN100407871C CN 100407871 C CN100407871 C CN 100407871C CN 2005101018588 A CN2005101018588 A CN 2005101018588A CN 200510101858 A CN200510101858 A CN 200510101858A CN 100407871 C CN100407871 C CN 100407871C
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Abstract
The present invention relates to a call processing method of a wireless local loop user in the next generation network, which comprises the following steps that a wireless access controller firstly sends an establish message to a soft exchange device to initiate a call establish request, and then, the soft exchange device returns an establish confirming message to the wireless access controller, and before the wireless access controller sends a called number, the soft exchange device sends a number detecting request to a media gateway and indicates the media gateway to make a preparation for detecting the number. After the media gateway detects the called number, a normal call is established. The present invention also provides a call processing system of the wireless local loop user in the next generation network. The call processing method of the present invention completely conforms to a V5 protocol and a media gateway control protocol specification, the omission of the called number of the wireless local loop user can be prevented, and a wireless access controller of a specific manufacturer is not depended.
Description
Technical field
The present invention relates to next generation network (NGN, Next Generation Network) technology, relate in particular to the call processing method and the system of radio local loop user in a kind of next generation network.
Background technology
Next generation network is a kind of business-driven type network, it adopts the network architecture comprehensive, open, that merge, separate, call out control fully by business and calling control and separate fully, thereby realize relatively independent business system, make business be independent of network with carrying.At next generation network equipment and Radio Access Controller (RAC, Radio Access Controller) in the equipment interconnection use, in band, send out under number situation, the several numbers in subscriber dialing front often occur and omit the phenomenon that causes call failure, especially particularly evident under modulator-demodulator (Modem) data interchange function (IWF, Interworking Function) service conditions.IWF be the wearing or featuring stage armour state with protocol conversion or be mapped to consistent network and the means of customer service, come hidden difference on physical link and network technology.
See also Fig. 1, NGN equipment (comprises Softswitch and media gateway, wherein Softswitch is mainly used in the network control layer of NGN, finishes functions such as the calling control of voice based on the IP packet network, data, multimedia service and connection management) and RAC equipment adopt the V5 interface of standard to dock.
See also Fig. 2, because RAC equipment and NGN equipment adopt the V5 interface to dock, therefore work as the wireless local loop (WLL under the RAC equipment, Wireless Local Loop) when the user calls out as the calling subscriber, V5PSTN (the Public Switched TelephoneNetwork of the necessary adherence to standard of its call flow, public exchanging telephone network) call flow, that is: RAC at first sends foundation (Establish) message to the Softswitch request of setting up that makes a call, the Softswitch loopback is set up and is confirmed that (Establish Ack) message is to RAC then, then Softswitch sends distribution (Allocation) message of demand-assigned circuit to RAC, after RAC receives this assignment messages, the RAC device responds has assigned (Allocation Complete) message and has shown the distributor circuit success, RAC equipment can send the called number that the user dials on this circuit then, and media gateway detects called number and sets up normal call later on.
Under existing technical scheme, in order to guarantee that access success must guarantee that NGN equipment was carried out and detect the preparation that collects the digits before RAC equipment sends called number, otherwise probably cause called number to be lost, be illustrated in figure 3 as a kind of situation that may cause called number to be omitted:
As can be seen from the figure, the basic reason that produces the called number omission is: receive distribution (Allocation) message of the distributor circuit of Softswitch when RAC equipment after, can send number immediately on this circuit.But Softswitch be receive that RAC sends assigned (Allocation Complete) message after, reinform media gateway (under the NGN framework, number detects and is all finished by media gateway usually) on this circuit, detect dialing, therefore may produce called number.RAC begins to send out number point and media gateway to begin to detect dialing point life period poor among the figure, and the number that reports media gateway at RAC equipment during this period of time can be lost, and omits phenomenon thereby produce called number.
Summary of the invention
Technical problem to be solved by this invention is to provide the call processing method and the system of radio local loop user in a kind of next generation network, it defers to V5 agreement and MGCP rules fully, the called number that can prevent radio local loop user is omitted, and does not rely on the RAC equipment of particular vendor.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: the call processing method of radio local loop user in kind of the next generation network is provided, and it may further comprise the steps:
A. Radio Access Controller at first sends and sets up message to the Softswitch request of setting up that makes a call, and the Softswitch loopback is set up acknowledge message and given Radio Access Controller then;
B. before Radio Access Controller sent called number, Softswitch just sent to media gateway and detects number request, and indicating media gateway is carried out the preparation that detects number, sets up normal call later on when media gateway detects called number.
Further improvement in the technical proposal is: step b further may further comprise the steps:
B1. Softswitch sends to media gateway and detects number request, and indicating media gateway is carried out the preparation that detects number, and media gateway then sends request to Softswitch and confirms;
B2. follow Softswitch sends demand-assigned circuit to Radio Access Controller assignment messages, receive the assignment messages of this demand-assigned circuit when Radio Access Controller after, Radio Access Controller sends to Softswitch and has assigned message and show the distributor circuit success;
B3. Radio Access Controller sends the called number that the user dials on this circuit then, and media gateway detects called number and sets up normal call later on.
Another improvement of technique scheme is: step b further may further comprise the steps:
B1. Softswitch sends the assignment messages of demand-assigned circuit to Radio Access Controller, receive the assignment messages of this demand-assigned circuit when Radio Access Controller after, Radio Access Controller sends to Softswitch and has assigned message and show the distributor circuit success;
B2. Radio Access Controller is carried out regularly step then, and Softswitch sends to media gateway and detects number request, and indicating media gateway is carried out the preparation that detects number, and media gateway then sends request to Softswitch and confirms;
B3. after treating that described timing step is finished, Radio Access Controller just sends the called number that the user dials on this circuit, and media gateway detects called number and sets up normal call later on;
Wherein, the described duration of carrying out regularly step selects to make before timing device is overtime media gateway can receive the detection number request that Softswitch sends to media gateway.
For solving above-mentioned another technical problem, the technical solution adopted in the present invention is: the call processing system that radio local loop user in a kind of next generation network is provided, the equipment of described next generation network comprises Softswitch and media gateway, described wireless local loop comprises Radio Access Controller, and described Radio Access Controller is used for sending sets up message to described Softswitch make a call foundation request, distributor circuit and send called number on this circuit; Described Softswitch is used for sending the detection number request to described media gateway before described Radio Access Controller sends called number, and indicating media gateway is carried out the preparation that detects number; Described media gateway is used to detect called number and sets up normal call.
Further improvement in the technical proposal is: described Radio Access Controller comprises timing device, sends the called number that the user dials its control Radio Access Controller equipment is carried out the preparation that detects number in described media gateway after; It is to be decided to the network delay the media gateway by Softswitch that the duration of described timing device is selected; The duration of described timing device selects to make before this timing device is overtime described media gateway can receive the detection number request that described Softswitch sends to this media gateway.
The invention has the beneficial effects as follows: because the call processing method of radio local loop user and system are before Radio Access Controller sends called number in the next generation network of the present invention, Softswitch just sends to media gateway and detects number request, indicate this media gateway to carry out the preparation that detects number, therefore when Radio Access Controller receives that assignment messages sends called number later on again, just the phenomenon that called number is lost can not take place; This call processing method overcomes the influence of different vendor and network delay fully, and called number is omitted the generation of phenomenon when thoroughly stopping next generation network equipment and Radio Access Controller networking, thereby makes this networking mode reach commercial requirement fully; Also improved the versatility of next generation network equipment and Radio Access Controller networking in addition.
Description of drawings
Fig. 1 is NGN equipment and RAC equipment typical case networking diagram.
Fig. 2 is the call processing method flow chart when WLL user is as caller in the prior art.
Fig. 3 causes called number to omit the call processing method flow chart of problem in the prior art.
Fig. 4 is the call processing method flow chart of radio local loop user in the first embodiment of the invention next generation network.
Fig. 5 is the call processing method flow chart of radio local loop user in the second embodiment of the invention next generation network.
Embodiment
The present invention follows in strictness on the basis of V5 protocols of standard under the situation of NGN equipment and RAC equipment network, the call processing method flow process when having proposed WLL user as caller.
See also Fig. 4, the call processing method of radio local loop user may further comprise the steps in the first embodiment of the invention next generation network: RAC at first sends foundation (Establish) message to the Softswitch request of setting up that makes a call, the Softswitch loopback is set up and is confirmed that (Establish Ack) message is to RAC then, Softswitch sends to media gateway and detects number request then, indicating media gateway is carried out the preparation that detects number, media gateway then sends request to Softswitch and confirms, then Softswitch sends distribution (Allocation) message of demand-assigned circuit to RAC, receive the assignment messages of this demand-assigned circuit as RAC after, RAC equipment sends to Softswitch and has assigned (Allocation Complete) message and show the distributor circuit success, RAC sends the called number that the user dials on this circuit then, and media gateway detects called number and sets up normal call later on.
See also Fig. 5, in the second embodiment of the invention next generation network in the call processing method of radio local loop user, the Radio Access Controller that is adopted comprises timing device, the call processing method of radio local loop user may further comprise the steps in the second embodiment of the invention next generation network: RAC at first sends foundation (Establish) message to the Softswitch request of setting up that makes a call, the Softswitch loopback is set up and is confirmed that (Establish Ack) message is to RAC then, then Softswitch sends distribution (Allocation) message of demand-assigned circuit to RAC, receive the assignment messages of this demand-assigned circuit as RAC after, RAC equipment sends to Softswitch and has assigned (Allocation Complete) message and show the distributor circuit success, Radio Access Controller is carried out regularly step then, promptly start timing device, then Softswitch sends to media gateway and detects number request, indicating media gateway is carried out the preparation that detects number, media gateway then sends request to Softswitch and confirms, after treating that described timing step is finished, be timing device overtime after, RAC equipment just sends the called number that the user dials on this circuit, media gateway detects called number and sets up normal call later on.It is to be decided to the network delay the media gateway by Softswitch that the described duration of carrying out regularly step is selected.This execution regularly duration of step selects to make before timing device is overtime media gateway can receive the detection dialing request that Softswitch sends to media gateway.
The present invention also provides the call processing system of radio local loop user in a kind of next generation network, the equipment of described next generation network comprises Softswitch and media gateway, described wireless local loop comprises Radio Access Controller, and described Radio Access Controller is used for sending sets up message to described Softswitch make a call foundation request, distributor circuit and send called number on this circuit; Described Softswitch is used for sending the detection number request to described media gateway before described Radio Access Controller sends called number, and indicating media gateway is carried out the preparation that detects number; Described media gateway is used to detect called number and sets up normal call.Described Radio Access Controller comprises timing device, sends the called number that the user dials its control Radio Access Controller equipment is carried out the preparation that detects number in described media gateway after.It is to be decided to the network delay the media gateway by Softswitch that the duration of described timing device is selected, the duration of this timing device will make before this timing device is overtime described media gateway can receive that described Softswitch to the detection dialing request that this media gateway sends, the phenomenon of called number omission so just can not occur.
The emphasis of the call processing method of radio local loop user is exactly before RAC equipment sends called number in the next generation network of the present invention, the Softswitch of NGN equipment has just sent to media gateway and has detected number request, indicating media gateway is carried out the preparation that detects number, therefore when RAC receives that distribution (Allocation) message of demand-assigned circuit sends called number later on again, the phenomenon that called number is omitted just can not take place.
Claims (8)
1. the call processing method of radio local loop user in the next generation network is characterized in that may further comprise the steps:
A. Radio Access Controller at first sends and sets up message to the Softswitch request of setting up that makes a call, and the Softswitch loopback is set up acknowledge message and given Radio Access Controller then;
B. before Radio Access Controller sent called number, Softswitch just sent to media gateway and detects number request, and indicating media gateway is carried out the preparation that detects number, sets up normal call later on when media gateway detects called number.
2. call processing method as claimed in claim 1, it is characterized in that: step b further may further comprise the steps:
B1. Softswitch sends to media gateway and detects number request, and indicating media gateway is carried out the preparation that detects number, and media gateway then sends request to Softswitch and confirms;
B2. follow Softswitch sends demand-assigned circuit to Radio Access Controller assignment messages, receive the assignment messages of this demand-assigned circuit when Radio Access Controller after, Radio Access Controller sends to Softswitch and has assigned message and show the distributor circuit success;
B3. Radio Access Controller sends the called number that the user dials on this circuit then, and media gateway detects called number and sets up normal call later on.
3. call processing method as claimed in claim 1, it is characterized in that: step b further may further comprise the steps:
B1. Softswitch sends the assignment messages of demand-assigned circuit to Radio Access Controller, receive the assignment messages of this demand-assigned circuit when Radio Access Controller after, Radio Access Controller sends to Softswitch and has assigned message and show the distributor circuit success;
B2. Radio Access Controller is carried out regularly step then, and Softswitch sends to media gateway and detects number request, and indicating media gateway is carried out the preparation that detects number, and media gateway then sends request to Softswitch and confirms;
B3. after treating that described timing step is finished, Radio Access Controller just sends the called number that the user dials on this circuit, and media gateway detects called number and sets up normal call later on;
Wherein, the described duration of carrying out regularly step selects to make before timing device is overtime media gateway can receive the detection number request that Softswitch sends to media gateway.
4. call processing method as claimed in claim 3 is characterized in that: it is to be decided to the network delay the media gateway by Softswitch that the described duration of carrying out regularly step is selected.
5. the call processing system of radio local loop user in the next generation network, the equipment of described next generation network comprises Softswitch and media gateway, described wireless local loop comprises Radio Access Controller, it is characterized in that: described Radio Access Controller is used for sending sets up message to described Softswitch make a call foundation request, distributor circuit and send called number on this circuit; Described Softswitch is used for sending the detection number request to described media gateway before described Radio Access Controller sends called number, and indicating media gateway is carried out the preparation that detects number; Described media gateway is used to detect called number and sets up normal call.
6. call processing system as claimed in claim 5 is characterized in that: described Radio Access Controller comprises timing device, sends the called number that the user dials its control Radio Access Controller is carried out the preparation that detects number in described media gateway after.
7. call processing system as claimed in claim 6 is characterized in that: it is to be decided to the network delay the media gateway by Softswitch that the duration of described timing device is selected.
8. call processing system as claimed in claim 7 is characterized in that: the duration of described timing device selects to make before this timing device is overtime described media gateway can receive the detection number request that described Softswitch sends to this media gateway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101018588A CN100407871C (en) | 2005-11-26 | 2005-11-26 | Call processing method and system for radio local loop user in next generation network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2005101018588A CN100407871C (en) | 2005-11-26 | 2005-11-26 | Call processing method and system for radio local loop user in next generation network |
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| CN1870820A CN1870820A (en) | 2006-11-29 |
| CN100407871C true CN100407871C (en) | 2008-07-30 |
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| CN2005101018588A Expired - Fee Related CN100407871C (en) | 2005-11-26 | 2005-11-26 | Call processing method and system for radio local loop user in next generation network |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1226366A (en) * | 1996-06-03 | 1999-08-18 | 艾利森公司 | Converting routing address within telecommunications network |
| CN1556645A (en) * | 2004-01-02 | 2004-12-22 | 中兴通讯股份有限公司 | System and method for providing individuality ring back tone business in yonger generation network |
| KR20050050342A (en) * | 2003-11-25 | 2005-05-31 | 엘지전자 주식회사 | System and method of coloring service |
| CN1622581A (en) * | 2003-11-28 | 2005-06-01 | 华为技术有限公司 | Call processing method in next generation network |
-
2005
- 2005-11-26 CN CN2005101018588A patent/CN100407871C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1226366A (en) * | 1996-06-03 | 1999-08-18 | 艾利森公司 | Converting routing address within telecommunications network |
| KR20050050342A (en) * | 2003-11-25 | 2005-05-31 | 엘지전자 주식회사 | System and method of coloring service |
| CN1622581A (en) * | 2003-11-28 | 2005-06-01 | 华为技术有限公司 | Call processing method in next generation network |
| CN1556645A (en) * | 2004-01-02 | 2004-12-22 | 中兴通讯股份有限公司 | System and method for providing individuality ring back tone business in yonger generation network |
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| CN1870820A (en) | 2006-11-29 |
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Granted publication date: 20080730 Termination date: 20121126 |