CN100466828C - Call failure handling method and system - Google Patents

Call failure handling method and system Download PDF

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Publication number
CN100466828C
CN100466828C CNB2006100806367A CN200610080636A CN100466828C CN 100466828 C CN100466828 C CN 100466828C CN B2006100806367 A CNB2006100806367 A CN B2006100806367A CN 200610080636 A CN200610080636 A CN 200610080636A CN 100466828 C CN100466828 C CN 100466828C
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China
Prior art keywords
mobile switching
switching centre
call failure
attaching position
position register
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CNB2006100806367A
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CN1968516A (en
Inventor
刘学红
穆克利
纪文峰
程志
郭平
李世前
孙立石
孙翠萍
孙建贝
李昊鹏
李华
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H04W76/45—Connection management for selective distribution or broadcast for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H04W8/245—Transfer of terminal data from a network towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16—Gateway arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S370/00—Multiplex communications
    • Y10S370/901—Wide area network
    • Y10S370/902—Packet switching
    • Y10S370/903—Osi compliant network
    • Y10S370/906—Fiber data distribution interface, FDDI
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S370/00—Multiplex communications
    • Y10S370/901—Wide area network
    • Y10S370/902—Packet switching
    • Y10S370/903—Osi compliant network
    • Y10S370/907—Synchronous optical network, SONET

Abstract

The invention relates to a method for treating page failure and relative system, wherein said method comprises that: 1, attach register obtains page failure treatment request; 2, register via the preset treatment rule processes page failure treatment. The invention also provides two relative systems. The invention has simple process.

Description

The method and system that call failure is handled
Technical field
The present invention relates to moving communicating field, relate in particular to the method and system that call failure is handled
Background technology
According to code division multiple access (CDMA:Code Division Multiple Access) standard, the divert when busy business if the user has contracted (CFB:Call Forwarding on mobile subscriber Busy), Call Forwarding No Reply business (CFNA:Call Forwardingon No Answer), acquiescence forward-shifting service CFD is when the user makes location registers, the qualification indication, attaching position register during the qualification request (HLR:Home LocationRegister) can issue CFB to serving mobile switching center (MSC:Mobile Switching Centre), the signatory sign of CFNA.MSC judges whether to notify HLR to handle forward-shifting service according to these signs when the call failure of respective type takes place.
A kind of call failure processing method of the prior art is: the user is in the signatory CFMN business of HLR, and HLR sends to MSC with the customer call signatory state of the professional CFMN of short message notification of failing during the customer location registration.When call failure, send the call failure short message notification to the called subscriber by MSC.
Customer call failure short message notification business: when the called subscriber can't call establishment, if the called subscriber is signatory and activated CFMN, system's playback subscriber call.When the called subscriber can be timely, once there was missed call in system with short message form advise called subscriber.
But, realizes user CFMN that send the call failure short message notification during call failure and finished by MSC, the network element that relates to is many, so realize more complicated because contracting at HLR; In addition since MSC send SMS message, for the MSC of portable terminal (MS:Mobile Subscriber) service must support this business, if do not support then can't provide this service, so limitation is arranged for MS.
Summary of the invention
The technical problem to be solved in the present invention provides the method and system that call failure is handled, and is used for realizing easily the processing of call failure.
The method that call failure provided by the invention is handled comprises step:
1) attaching position register obtains call failure and handles request, and described call failure is handled request and initiated according to the processing rule that gets access to when customer call is failed by moving exchanging center MSC;
2) attaching position register carries out the call failure processing according to presetting processing rule.
Preferably, further comprise step before the described step 1):
A1) after portable terminal enters service area, first mobile switching centre sends enroll in notifications message to the VLR Visitor Location Register of described portable terminal;
A2) judge the record that whether has this portable terminal in the described VLR Visitor Location Register, if having, then VLR Visitor Location Register sends to first mobile switching centre with the processing rule of storage; Otherwise VLR Visitor Location Register obtains processing rule from attaching position register, and the processing rule that obtains sent to first mobile switching centre, described processing rule is used to indicate described first mobile switching centre to ask attaching position register to carry out call failure when customer call is failed to handle;
A3) judge whether the calling between calling subscriber and the called subscriber fails, if failure, then first mobile switching centre carries out the call failure processing according to described processing rule request attaching position register.
Preferably, described steps A 3) further comprise step before:
A31) first mobile switching centre receives the calling that the calling subscriber initiates;
A32) attaching position register is fed back to the address information of the MSC of called subscriber's service according to the request of first mobile switching centre.
Preferably, further comprise step before the described step 1):
B1) after portable terminal enters service area, first mobile switching centre sends enroll in notifications message to the VLR Visitor Location Register of described portable terminal;
B2) judge the record that whether has this portable terminal in the described VLR Visitor Location Register, if having, then VLR Visitor Location Register sends to first mobile switching centre with the processing rule of storage; Otherwise VLR Visitor Location Register obtains processing rule from attaching position register, and the processing rule that obtains sent to first mobile switching centre, described processing rule is used to indicate described first mobile switching centre to ask attaching position register to carry out call failure when customer call is failed to handle;
B3) judge whether the calling between calling subscriber and the called subscriber fails, if failure, then first mobile switching centre is according to described processing rule request second mobile switching centre notice attaching position register, and second mobile switching centre request attaching position register carries out call failure to be handled.
Preferably, described step B3) further comprise step before:
B31) second mobile switching centre receives the calling that the calling subscriber initiates;
B32) second mobile switching centre's acquisition request is the address information of the MSC of called subscriber's service;
B33) attaching position register please be asked for called route to first mobile switching centre;
B34) attaching position register is got called route;
B35) get the success of called route after, attaching position register is fed back to the address information of the MSC of called subscriber's service to second mobile switching centre.
Preferably, the process of described judgement call failure comprises: if wait for that settling time is overtime, perhaps called subscriber busy after calling begins to set up is then judged call failure.
Preferably, described step 2) handle in be when the called subscriber can be timely, send the call failure short message to the called subscriber, or when the called subscriber can be timely, play verbal announcement to the called subscriber.
Preferably, described step 2) further comprise afterwards: call release.
The system that call failure provided by the invention is handled comprises: first mobile switching centre, attaching position register; When changeing before the user not signing, described first mobile switching centre carries out call failure according to the processing rule request attaching position register that gets access to and handles when call failure; Described attaching position register is used to receive the request from first mobile switching centre, and carries out call failure and handle.
Preferably, described system also comprises: VLR Visitor Location Register is used for sending inquiry request message and sending processing rule to first mobile switching centre to attaching position register; Described attaching position register also is used for according to described inquiry request message to VLR Visitor Location Register feedback processing rule.
The system that call failure provided by the invention is handled comprises: first mobile switching centre, second mobile switching centre, attaching position register; When changeing before the user not signing, described first mobile switching centre notifies attaching position register according to processing rule request second mobile switching centre that gets access to when call failure; Described second mobile switching centre request attaching position register carries out call failure to be handled; Described attaching position register receives the request from second mobile switching centre, and carries out call failure and handle.
Preferably, described system also comprises: VLR Visitor Location Register is used for sending inquiry request message and sending processing rule to first mobile switching centre to attaching position register; Described attaching position register also is used for according to described inquiry request message to VLR Visitor Location Register feedback processing rule.
Above technical scheme as can be seen, the present invention has the following advantages:
At first, because the HLR request of receiving carrying out call failure is handled when call failure, with respect to signatory at HLR in the prior art, carry out call failure at MSC and handle, the present invention realizes simply;
Secondly, handle, do not need MSC to support this business, and then also just do not need to consider the compatibility issue between the MSC of different vendor, so improved versatility owing to carry out call failure by HLR;
Further, the present invention both can be used for Home Exchange Call and also can be used for station to station call, so enlarged professional accommodation, the present invention carries out call failure and handles and both can adopt the mode of short message notification also can adopt the mode of verbal announcement in addition, so improved the flexibility of handling;
At last because the present invention has several different methods to the judgement of call failure, so that the judgement of call failure is more flexible.
Description of drawings
Fig. 1 is the inventive method first embodiment flow chart;
Fig. 2 is the inventive method second embodiment flow chart;
Fig. 3 is the inventive method the 3rd embodiment flow chart;
Fig. 4 is the inventive method the 4th embodiment flow chart;
Fig. 5 is the inventive method the 5th embodiment flow chart;
Fig. 6 is the inventive method the 6th embodiment flow chart;
Fig. 7 is the inventive method the 7th embodiment flow chart;
Fig. 8 is the inventive method the 8th embodiment flow chart;
Fig. 9 is the inventive method the 9th embodiment flow chart;
Figure 10 is the inventive method the tenth embodiment flow chart;
Figure 11 (a)～(b) is two kinds of system schematic of the present invention.
Embodiment
The invention provides the method and system that call failure is handled, its main thought is handled for carried out call failure by HLR.
See also Fig. 1, the inventive method first embodiment comprises:
D1) HLR obtains call failure and handles request;
D2) carrying out call failure handles.
Wherein, HLR carries out the call failure processing.
The present invention both can be used for the situation of Home Exchange Call, also can be used for the situation of station to station call.
Wherein, described Home Exchange Call is meant that calling subscriber and called subscriber are in the service range of same MSC, do not relate to other MSC during calling; Described station to station call is meant that calling subscriber and called subscriber adhere to different MSC separately, and calling out needs when carrying out to carry out between the MSC alternately.
The situation that call failure processing method of the present invention is used for Home Exchange Call is described in detail below:
See also Fig. 2, the inventive method second embodiment comprises:
E1) send the preceding sign that changes;
Wherein, change sign as processing rule before adopting in the present embodiment, be understandable that, can also adopt other similar rule, as long as this rule can reach the purpose of notice HLR when call failure.
Wherein, VLR Visitor Location Register (VLR:Visitor Location Register) changes sign before a MSC sends.
E2) begin to set up calling;
Wherein, a MSC begins to set up calling with the called subscriber.
E3) judge to call out whether set up success, if successfully turn to step e 4), otherwise turn to step e 5);
Wherein, if a MSC waits for that settling time is overtime, called subscriber busy after perhaps beginning to set up when conversing, then conversation is set up unsuccessful.
E4) carry out normal call;
E5) send the processing notice;
Wherein, a MSC sends the forwarding number request message according to the preceding commentaries on classics sign that VLR sends to HLR.Request HLR carries out realizing to HLR transmission forwarding number request message of call failure processing employing in the present embodiment, can adopt the message that sends other similar functions equally, triggers the purpose that HLR carries out the call failure processing as long as can reach.
E6) carrying out call failure handles.
Wherein, HLR carries out the call failure processing according to the forwarding number request message of MSC transmission.
Present embodiment is increasing VLR changes the process of sign, carries out respective handling according to the call setup situation before a MSC sends process on the basis of method first embodiment.
In the present embodiment, when changeing before the user not signing, VLR still changes before a MSC sends and indicates, the one MSC terminated call of directly not taking out stitches in the time of so just can making call failure, and can adopt call failure processing mode flexibly.
See also Fig. 3, the inventive method the 3rd embodiment comprises:
F1) send the preceding sign that changes;
Wherein, change sign as processing rule before adopting in the present embodiment, be understandable that, can also adopt other similar rule, as long as this rule can reach the purpose of notice HLR when call failure.
F2) receipt of call;
Wherein, after calling out initiation, a MSC receives this calling.
F3) send locating request message;
Wherein, a MSC sends locating request message to HLR, requires HLR inquire address information, is the address of the MSC of called subscriber's service.
F4) feedback Location Request response message;
Wherein, after HLR inquires the address, feed back to a MSC.
F5) begin to set up calling;
F6) judge to call out whether set up success, if successfully turn to step F 7), otherwise turn to step F 8);
F7) carry out normal call;
F8) send the processing notice;
Wherein, request HLR carries out realizing to HLR transmission forwarding number request message of call failure processing employing in the present embodiment, can adopt the message that sends other similar functions equally, trigger the purpose that HLR carries out the call failure processing as long as can reach.
F9) carrying out call failure handles.
Present embodiment is increasing before a MSC sets up calling and the reciprocal process between the HLR on the basis of method second embodiment.
See also Fig. 4, the inventive method the 4th embodiment comprises:
G1) portable terminal enters service area;
Wherein, when portable terminal when the service coverage of a MSC moves to the service coverage of another MSC, provide service by latter MSC for this portable terminal this moment.
G2) send enroll in notifications message;
Wherein, enroll in notifications message is meant the message that sends when the user carries out location registers, is understandable that, also can send corresponding notification message when the user carries out qualification indication, qualification request, and the mode of transmission is similar.
Wherein, a MSC sends enroll in notifications message REGNOT to the VLR of portable terminal.
Wherein, described enroll in notifications message REGNOT comprises: id information ID info, qualification indication code QUALCODE, the access style SYSACCTYPE of system, terminal type TERMTYPE, short message address SMSADDR, access information ACCESSINFO, system transaction disposal ability TRANSCAP.
Described SYSACCTYPE parameter list is as shown in the table:
Table 1
Value Implication Possible cause
1 Undefined For automatic registration, beginning exhale, page response, shutdown registration, if system does not require authentication parameter, will be converted to this access style;
2 The FLASH request
3 Automatically registration
4 Beginning exhales
5 Page response
6 Do not insert The authentication that control is initiated is not used
7 The shutdown registration
8 The SMS page response
Described TRANSCAP data structure is as shown in the table:
Table 2
Figure C200610080636D00121
Wherein, profile represents whether support PROFILE;
Busyset represents whether support to meet busy the detection;
Announ represents whether to support playback tabulation ANNOUNCEMENT parameter;
Rui represents whether support remote user interface RUI;
Spini represents whether to support the PIN code interception;
Uz represents whether support user area userzone;
Ndss represents the selection NDSS of system whether network enabled is indicated;
Name represents whether support CNAP/CNAR;
Multiterm represents whether support the multiple terminals;
Termlist represents whether support the TERMLIST parameter;
Winadr represents whether support the TRIGADDRLIST parameter;
G3) judge the record that whether has this portable terminal among the VLR,, turn to step G6 if exist), otherwise turn to step G4);
G4) send inquiry request message;
Wherein, VLR sends inquiry request message to HLR, requires the preceding commentaries on classics flag information of this portable terminal of inquiry.
G5) change sign before the feedback, and enter step G6);
Wherein, feed back to VLR after changeing sign before HLR inquires.
G6) send the preceding sign that changes;
Wherein, change sign as processing rule before adopting in the present embodiment, be understandable that, can also adopt other similar rule, as long as this rule can reach the purpose of notice HLR when call failure.
G7) receipt of call;
G8) send locating request message;
G9) feedback Location Request response message;
G10) begin to set up calling;
G11) judge to call out whether set up success, if successfully turn to step G12), otherwise turn to step G13);
G12) carry out normal call;
G13) send the processing notice;
Wherein, request HLR carries out realizing to HLR transmission forwarding number request message of call failure processing employing in the present embodiment, can adopt the message that sends other similar functions equally, trigger the purpose that HLR carries out the call failure processing as long as can reach.
G14) carrying out call failure handles.
Present embodiment is increasing the detailed set-up procedure of VLR change sign before a MSC sends before on the basis of method the 3rd embodiment.
See also Fig. 5, the inventive method the 5th embodiment comprises:
H1) portable terminal enters service area;
H2) send enroll in notifications message;
H3) judge the record that whether has this portable terminal among the VLR,, turn to step H6 if exist), otherwise turn to step H4);
H4) send inquiry request message;
H5) change sign before the feedback, and enter step H6);
H6) send the preceding sign that changes;
Wherein, change sign as processing rule before adopting in the present embodiment, be understandable that, can also adopt other similar rule, as long as this rule can reach the purpose of notice HLR when call failure.
H7) receipt of call;
H8) send locating request message;
H9) feedback Location Request response message;
H10) begin to set up calling;
H11) judge to call out whether set up success, if successfully turn to step H12), otherwise turn to step H13);
H12) carry out normal call;
H13) send the processing notice;
Wherein, request HLR carries out realizing to HLR transmission forwarding number request message of call failure processing employing in the present embodiment, can adopt the message that sends other similar functions equally, trigger the purpose that HLR carries out the call failure processing as long as can reach.
H14) change sign and call failure short message service state before the inquiry;
H15) send the call failure short message;
Wherein, when the called subscriber can be timely, HLR sends the call failure short message to the called subscriber.
H16) call release.
In the present embodiment, what HLR adopted the processing of call failure is the mode that sends SMS message, and is understandable that, can also use equally as the user and can in time play verbal announcement user's mode.
Above embodiment all handles call failure when carrying out Home Exchange Call, only limit to have only a MSC this moment, be that caller MSC and called MS C are the situation of same MSC, but often have the situation that caller and called users adheres to different MS C service range separately in actual applications, the calling of this moment is called as station to station call, and the situation that is used for station to station call at call failure processing method of the present invention is described in detail below:
See also Fig. 6, the inventive method the 6th embodiment comprises:
P1) send the preceding sign that changes;
Wherein, change sign as processing rule before adopting in the present embodiment, be understandable that, can also adopt other similar rule, as long as this rule can reach the purpose of notice HLR when call failure.
P2) begin to set up calling;
Wherein, the 2nd MSC and a MSC begin to set up calling.
P3) judge to call out whether set up success, if successfully turn to step P4), otherwise turn to step P5);
Wherein, if the 2nd MSC waits for that settling time is overtime, called subscriber busy after perhaps beginning to set up when conversing, then conversation is set up unsuccessful.
P4) carry out normal call;
P5) send redirect message;
Wherein, a MSC sends redirect message REDREQ to the 2nd MSC, wherein comprises parameters R EDREASON and shows redirected reason.
Wherein, described REDREASON data structure is as shown in the table:
Table 3
The preceding cause value that changes Implication
1 Busy
2 No response
3 Unconditionally
4 No-response paging
5 Unreachable
6 No route
7 Call out and accept
8 Call denial
P6) send the processing notice;
Wherein, after the 2nd MSC receives redirect message, send processing notice forwarding number request message, wherein carry the redirected reason in the redirect message to HLR.
Wherein, request HLR carries out realizing to HLR transmission forwarding number request message of call failure processing employing in the present embodiment, can adopt the message that sends other similar functions equally, trigger the purpose that HLR carries out the call failure processing as long as can reach.
P7) carrying out call failure handles.
Present embodiment is the fail processing method at station to station call, relates to 2 MSC in the present embodiment.
See also Fig. 7, the inventive method the 7th embodiment comprises:
Q1) send the preceding sign that changes;
Wherein, change sign as processing rule before adopting in the present embodiment, be understandable that, can also adopt other similar rule, as long as this rule can reach the purpose of notice HLR when call failure.
Q2) send locating request message;
Wherein, the 2nd MSC sends locating request message to HLR, requires HLR inquire address information, is the address of the MSC of called subscriber's service.
Q3) notice is got called route;
Q4) get called route;
Wherein, after HLR receives locating request message, get called route to a MSC by VLR.
Q5) feedback Location Request response message;
Wherein, get the success of called route after, HLR is to the 2nd MSC feedback addresses information.
Q6) begin to set up calling;
Q7) judge to call out whether set up success, if successfully turn to step Q8), otherwise turn to step Q9);
Q8) carry out normal call;
Q9) send redirect message;
Q10) send the processing notice;
Wherein, request HLR carries out realizing to HLR transmission forwarding number request message of call failure processing employing in the present embodiment, can adopt the message that sends other similar functions equally, trigger the purpose that HLR carries out the call failure processing as long as can reach.
Q11) carrying out call failure handles.
Wherein, after HLR receives and handles notice, carry out call failure and handle.
Present embodiment was increasing at the 2nd MSC before a MSC sets up calling the reciprocal process between the 2nd MSC, a MSC, VLR and the HLR on the basis of method the 6th embodiment.
See also Fig. 8, the inventive method the 8th embodiment comprises:
R1) portable terminal enters service area;
R2) send enroll in notifications message;
Wherein, a MSC sends enroll in notifications message to the VLR of portable terminal.
R3) judge the record that whether has this portable terminal among the VLR,, turn to step R5 if exist), otherwise turn to step R4);
R4) change sign before the acquisition request;
Wherein, change the sign request before VLR sends and obtains.
R5) send the preceding sign that changes;
Wherein, change sign as processing rule before adopting in the present embodiment, be understandable that, can also adopt other similar rule, as long as this rule can reach the purpose of notice HLR when call failure.
R6) send locating request message;
R7) notice is got called route;
R8) get called route;
R9) feedback Location Request response message;
R10) begin to set up calling;
Wherein, the 2nd MSC and a MSC begin to set up calling.
R11) judge to call out whether set up success, if successfully turn to step R12), otherwise turn to step R13);
R12) carry out normal call;
R13) send redirect message;
R14) send the processing notice;
Wherein, after the 2nd MSC receives redirect message, send the forwarding number request message, wherein carry the redirected reason in the redirect message to HLR.
Wherein, request HLR carries out realizing to HLR transmission forwarding number request message of call failure processing employing in the present embodiment, can adopt the message that sends other similar functions equally, trigger the purpose that HLR carries out the call failure processing as long as can reach.
R15) carrying out call failure handles.
Wherein, after HLR receives and handles notice, carry out call failure and handle.
Present embodiment is increasing the detailed set-up procedure of VLR change sign before a MSC sends before on the basis of method the 7th embodiment.
See also Fig. 9, the inventive method the 9th embodiment comprises:
S1) portable terminal enters service area;
Wherein, when portable terminal when the service coverage of a MSC moves to the service coverage of another MSC, provide service by latter MSC for this portable terminal.
S2) send enroll in notifications message;
Wherein, enroll in notifications message is meant the message that sends when the user carries out location registers, is understandable that, also can send corresponding notification message when the user carries out qualification indication, qualification request, and the mode of transmission is similar.
S3) judge the record that whether has this portable terminal among the VLR,, turn to step S6 if exist), otherwise turn to step S4);
S4) send inquiry request message;
Wherein, VLR sends inquiry request message to HLR, requires the preceding commentaries on classics flag information of this portable terminal of inquiry.
S5) change sign before the feedback, and turn to step S6);
Wherein, HLR comprises the signatory state of user's forward-shifting service to VLR feedback query result in call business indication CFI;
Wherein, described CFI parameter list is as shown in the table:
Table 4
Figure C200610080636D00191
For wherein each, the 1--unauthorized; 2--authorizes but un-activation; 3--authorizes and activates
S6) send the preceding sign that changes;
Wherein, change sign as processing rule before adopting in the present embodiment, be understandable that, can also adopt other similar rule, as long as this rule can reach the purpose of notice HLR when call failure.
S7) send locating request message;
S8) notice is got called route;
S9) get called route;
S10) judge whether successfully to get called route, if success turns to step S11), otherwise turn to step S12);
S11) feedback Location Request response message;
Wherein, HLR is to the 2nd MSC feedback Location Request response message, i.e. feedback addresses information.
S12) finish;
S13) begin to set up calling;
Wherein, the 2nd MSC and a MSC begin to set up calling.
S14) judge to call out whether set up success, if successfully turn to step S15), otherwise turn to step S16);
Wherein, if the 2nd MSC waits for that settling time is overtime, called subscriber busy after perhaps beginning to set up when conversing, then conversation is set up unsuccessful.
S15) carry out normal call;
S16) send redirect message;
Wherein, a MSC sends redirect message to the 2nd MSC.
S17) send the processing notice;
Wherein, request HLR carries out realizing to HLR transmission forwarding number request message of call failure processing employing in the present embodiment, can adopt the message that sends other similar functions equally, trigger the purpose that HLR carries out the call failure processing as long as can reach.
S18) carrying out call failure handles;
Wherein, after HLR receives and handles notice, carry out call failure and handle.
S19) call release.
Wherein, the 2nd MSC call release.
See also Figure 10, the inventive method the tenth embodiment comprises:
T1) portable terminal enters service area;
T2) send enroll in notifications message;
Wherein, enroll in notifications message is meant the message that sends when the user carries out location registers, is understandable that, also can send corresponding notification message when the user carries out qualification indication, qualification request, and the mode of transmission is similar.
T3) judge the record that whether has this portable terminal among the VLR,, turn to step T6 if exist), otherwise turn to step T4);
T4) send query messages;
T5) change sign before the feedback, and turn to step T6);
T6) send the preceding sign that changes;
Wherein, change sign as processing rule before adopting in the present embodiment, be understandable that, can also adopt other similar rule, as long as this rule can reach the purpose of notice HLR when call failure.
T7) send locating request message;
T8) notice is got called route;
T9) get called route;
T10) judge whether successfully to get called route, if success turns to step T11), otherwise turn to step T12);
T11) feedback Location Request response message;
T12) finish;
T13) begin to set up calling;
Wherein, the 2nd MSC and a MSC begin to set up calling.
T14) judge to call out whether set up success, if successfully turn to step T15), otherwise turn to step T16);
T15) carry out normal call;
T16) send redirect message;
Wherein, a MSC sends redirect message to the 2nd MSC.
T17) send the processing notice;
Wherein, request HLR carries out realizing to HLR transmission forwarding number request message of call failure processing employing in the present embodiment, can adopt the message that sends other similar functions equally, trigger the purpose that HLR carries out the call failure processing as long as can reach.
T18) change sign and call failure short message service state before the inquiry;
Wherein, change sign and call failure short message service state before the HLR inquiry.
T19) send the call failure short message;
Wherein, when the user in time HLR send the call failure short message to the called subscriber.
T20) call release.
In the present embodiment, what HLR adopted the processing of call failure is the mode that sends SMS message, and is understandable that, can also use equally as the user and can in time play verbal announcement user's mode.
The system that call failure of the present invention is handled is described in detail below:
See also Figure 11 (a), system of the present invention comprises: first mobile switching centre 200, attaching position register 400; Described first mobile switching centre 200 asks attaching position register 400 to carry out the call failure processing when call failure; The request that described attaching position register 400 receives from first mobile switching centre 200, and carry out call failure and handle.
Wherein, described system also comprises: VLR Visitor Location Register 100 is used for sending inquiry request message and sending processing rule to first mobile switching centre 200 to attaching position register 400; Described attaching position register 400 also is used for according to described inquiry request message to VLR Visitor Location Register 100 feedback processing rules.
See also Figure 11 (b), system of the present invention comprises: 200, the second mobile switching centres 300 of first mobile switching centre, attaching position register 400; Described first mobile switching centre 200 asks second mobile switching centre, 300 notice attaching position registers 400 when call failure; Described second mobile switching centre 300 request attaching position registers 400 carry out call failure to be handled; The request that described attaching position register 400 receives from second mobile switching centre 300, and carry out call failure and handle.
Wherein, described system also comprises: VLR Visitor Location Register 100 is used for sending inquiry request message and sending processing rule to first mobile switching centre 200 to attaching position register 400; Described attaching position register 400 also is used for according to described inquiry request message to VLR Visitor Location Register 100 feedback processing rules.
When the call failure that carries out Home Exchange Call is handled:
When portable terminal enters service area, first mobile switching centre 200 sends enroll in notifications message to VLR Visitor Location Register 100, VLR Visitor Location Register 100 search local data bases, if detect the record of this portable terminal, then record is sent to first mobile switching centre 200, if do not detect the record of this portable terminal, then send inquiry request message to attaching position register 400, attaching position register 400 is received Query Database after the message, Query Result is returned to VLR Visitor Location Register 100, and VLR Visitor Location Register 100 sends to first mobile switching centre 200 with Query Result.
When portable terminal makes a call, first mobile switching centre 200 receives this calling, and to attaching position register 400 transmission locating request message, attaching position register 400 is to first mobile switching centre, 200 feedback Location Request response messages, first mobile switching centre 200 begins to set up calls out, if call setup failure, first mobile switching centre 200 is according to user's preceding commentaries on classics sign, send the forwarding number request messages to attaching position register 400, attaching position register 400 is received after the message to the called subscriber and is sent the call failure short message or can in time play voice to the called subscriber as the user.
When the call failure that carries out station to station call is handled:
When portable terminal enters service area, provide first mobile switching centre 200 of service to send enroll in notifications message to VLR Visitor Location Register 100 for this service area, VLR Visitor Location Register 100 search local data bases, if detect the record of this portable terminal, then record is sent to first mobile switching centre 200, if do not detect the record of this portable terminal, then send inquiry request message to attaching position register 400, attaching position register 400 is received Query Database after the message, Query Result is returned to VLR Visitor Location Register 100, and VLR Visitor Location Register 100 sends to first mobile switching centre 200 with Query Result.
When portable terminal makes a call, second mobile switching centre 300 receives this calling, and to attaching position register 400 transmission locating request message, after attaching position register 400 is received this message, get called route to first mobile switching centre 200; after getting the success of called route; attaching position register 400 is to second mobile switching centre, 300 feedback Location Request response messages; 300 beginnings of second mobile switching centre are set up with first mobile switching centre 200 and called out; if failure is set up in conversation; first mobile switching centre 200 is according to user's preceding commentaries on classics sign; send redirect messages to second mobile switching centre 300; after this message is received by second mobile switching centre 300; send the forwarding number request messages to attaching position register 400, attaching position register 400 is received after the message to the called subscriber and is sent the call failure short message or can in time play voice to the called subscriber as the user.
More than method and system that call failure provided by the present invention is handled be described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (12)

1, a kind of method of call failure processing is characterized in that, when changeing before the user not signing, comprises step:
1) after portable terminal entered service area, mobile switching centre sent enroll in notifications message to the VLR Visitor Location Register of described portable terminal;
2) VLR Visitor Location Register sends processing rule to described mobile switching centre;
3) when customer call is failed, attaching position register obtains call failure and handles request, and described call failure is handled request and initiated according to the processing rule that gets access to from VLR Visitor Location Register by mobile switching centre;
4) attaching position register carries out the call failure processing according to presetting processing rule, and the described processing rule that presets is used to indicate described attaching position register to carry out the mode that the call failure processing is adopted.
2, the method for call failure processing according to claim 1 is characterized in that described step 2) be specially:
Judge the record that whether has this portable terminal in the described VLR Visitor Location Register, if having, then VLR Visitor Location Register sends to first mobile switching centre with the processing rule of storage; Otherwise VLR Visitor Location Register obtains processing rule from attaching position register, and the processing rule that obtains sent to first mobile switching centre, described processing rule is used to indicate described first mobile switching centre to ask attaching position register to carry out call failure when customer call is failed to handle;
Described step 3) is specially:
Judge whether the calling between calling subscriber and the called subscriber fails, if failure, then first mobile switching centre carries out the call failure processing according to described processing rule request attaching position register.
3, the method for call failure processing according to claim 2 is characterized in that, further comprises step before the described step 3):
A31) first mobile switching centre receives the calling that the calling subscriber initiates;
A32) attaching position register is fed back to the address information of called subscriber's serving mobile switching center according to the request of first mobile switching centre.
4, the method for call failure processing according to claim 1 is characterized in that described step 2) be specially:
Judge the record that whether has this portable terminal in the described VLR Visitor Location Register, if having, then VLR Visitor Location Register sends to first mobile switching centre with the processing rule of storage; Otherwise VLR Visitor Location Register obtains processing rule from attaching position register, and the processing rule that obtains sent to first mobile switching centre, described processing rule is used to indicate described first mobile switching centre to ask attaching position register to carry out call failure when customer call is failed to handle;
Described step 3) is specially:
Judge whether the calling between calling subscriber and the called subscriber fails, if failure, then first mobile switching centre is according to described processing rule request second mobile switching centre notice attaching position register, and second mobile switching centre request attaching position register carries out call failure to be handled.
5, the method for call failure processing according to claim 4 is characterized in that, further comprises step before the described step 3):
B31) second mobile switching centre receives the calling that the calling subscriber initiates;
B32) second mobile switching centre's acquisition request is the address information of called subscriber's serving mobile switching center;
B33) attaching position register please be asked for called route to first mobile switching centre;
B34) attaching position register is got called route;
B35) get the success of called route after, attaching position register is fed back to the address information of called subscriber's serving mobile switching center to second mobile switching centre.
6, the method for handling according to each described call failure in the claim 2 to 5 is characterized in that the process of described judgement call failure comprises: if wait for that settling time is overtime, perhaps called subscriber busy after calling begins to set up is then judged call failure.
7, the method for call failure processing according to claim 6 is characterized in that: processing is in the described step 4):
When the called subscriber can be timely, send the call failure short message to the called subscriber, or when the called subscriber can be timely, play verbal announcement to the called subscriber.
8, the method for call failure processing according to claim 7 is characterized in that, further comprises after the described step 4): call release.
9, a kind of system of call failure processing is characterized in that, comprising: first mobile switching centre, attaching position register, VLR Visitor Location Register;
When changeing before the user not signing, described first mobile switching centre carries out call failure according to the processing rule request attaching position register that gets access to from VLR Visitor Location Register and handles when call failure;
Described attaching position register is used to receive the request from first mobile switching centre, and carries out call failure and handle;
VLR Visitor Location Register is used for sending processing rule to first mobile switching centre.
10, the system of call failure processing according to claim 9 is characterized in that, described VLR Visitor Location Register also is used for sending query requests to attaching position register;
Described attaching position register also is used for according to described inquiry request message to VLR Visitor Location Register feedback processing rule.
11, a kind of system of call failure processing is characterized in that, comprising: first mobile switching centre, second mobile switching centre, attaching position register, VLR Visitor Location Register;
When changeing before the user not signing, described first mobile switching centre basis when call failure is notified attaching position register from processing rule request second mobile switching centre that VLR Visitor Location Register gets access to;
Described second mobile switching centre request attaching position register carries out call failure to be handled;
Described attaching position register receives the request from second mobile switching centre, and carries out call failure and handle;
VLR Visitor Location Register is used for sending processing rule to first mobile switching centre.
12, the system of call failure processing according to claim 11 is characterized in that, described VLR Visitor Location Register also is used for sending query requests to attaching position register;
Described attaching position register also is used for according to described inquiry request message to VLR Visitor Location Register feedback processing rule.
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