CN1889748A - Method and system for processing joint position service Gs interface fault - Google Patents
Method and system for processing joint position service Gs interface fault Download PDFInfo
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- CN1889748A CN1889748A CNA2006101037738A CN200610103773A CN1889748A CN 1889748 A CN1889748 A CN 1889748A CN A2006101037738 A CNA2006101037738 A CN A2006101037738A CN 200610103773 A CN200610103773 A CN 200610103773A CN 1889748 A CN1889748 A CN 1889748A
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Abstract
A method for setting fault of Gs interface used on joint position service includes detecting state of Gs interface used on joint position service by service GPRS support node received with update request of route region periodically and informing mobile station issued up said request when fault is confirmed, issuing up position logon process at circuit switch domain after notification is received by mobile station. The communication system applying said method is also disclosed.
Description
Technical field
The present invention relates to wireless communication field, particularly handle the method and system of joint position service Gs interface fault.
Background technology
Gs interface is the interface between VLR Visitor Location Register (VLR) and the Serving GPRS Support Node (SGSN) in WCDMA system and gsm system.The co-location business is the cooperative cooperating of circuit switching (CS) service of VLR control and packet switch (PS) service that SGSN controls, and original partial circuit reciprocal exchange of business is transmitted by the message of Gs interface, realizes in the PS territory.
During network operation mode 1, after user's co-location is adhered to successfully, if Gs interface breaks down, the periodicity Routing Area Update flow process of when periodicity Routing Area Update timer reaches, initiating as shown in Figure 1, its processing procedure is as follows:
Step 11, travelling carriage (MS) send periodically Routing Area Update request to SGSN.
Step 12, SGSN carry out safety function, comprise authentication and encryption flow.
Step 13, SGSN upgrade mobility management sub-layer (MM) context of MS, and the information that Routing Area Update is accepted sends to MS, and wherein upgrading the result is that joint route upgrades (Combined ra/laupdated).
If the interim mobile station identification (P-TMSI) of step 14 is redistributed, MS will confirm the P-TMSI that this is new so, and the message that the feedback Routing Area Update is finished is given SGSN.
When carrying out the periodicity Routing Area Update, no message transmits between SGSN and VLR.
There is following problem in prior art when joint position service Gs interface breaks down:
After user's co-location business was finished, if Gs interface breaks down, the user was before starting shooting again or roaming out current route district, and the Gs connection status will be Gs associating (Gs-ASSOCIATED) always among the VLR, can not change.Initiate periodically Routing Area Update flow process though can normally finish MS, SGSN can not notify MS can not reach MSC through the PS territory in this flow process, and MS can't initiate the location registers flow process in CS territory, and the user does in the CS territory when called can't distributing paging; Simultaneously, the user gives tacit consent to the business such as paging of still carrying out CS by the PS territory at this moment, and the user is influenced each other in the business in CS territory and PS territory.
Summary of the invention
The invention provides the method and system of handling joint position service Gs interface fault, with solve when joint position service Gs interface breaks down, exist in the prior art user do in the CS territory when called can't distributing paging problem.
The invention provides following technical scheme:
A kind of method of handling joint position service Gs interface fault may further comprise the steps:
Receive the periodically state of Routing Area Update requested service GPRS Support Node (SGSN) detection joint position service Gs interface, and the travelling carriage (MS) that notice is initiated this request when determining its fault;
Described travelling carriage receives the notice back and initiates the location registers flow process in independent circuit switching (CS) territory.
Wherein:
SGSN accepts to carry in the message the untouchable indication information of mobile switching centre (MSC) at the Routing Area Update that returns to MS, with notice travelling carriage joint position service Gs interface fault.Further, when MS accepted to carry in the message the untouchable indication of mobile switching centre (MSC) at definite described Routing Area Update, MS directly initiated the location registers flow process from the CS territory.
SGSN is by returning Routing Area Update Reject message to MS, with notice travelling carriage joint position service Gs interface fault.
MS triggers the associating attachment flow after receiving described Routing Area Update Reject message, SGSN accepts to carry in the message the temporary transient untouchable indication information of MSC in adhering to of returning to MS, make MS trigger the associating attachment flow once more, and, MS after the number of times that triggers associating attachment flow reaches predetermined value from CS territory initiation location registers flow process; Perhaps, MS triggers the associating attachment flow after receiving Routing Area Update Reject message, and SGSN accepts to carry in the message the untouchable indication information of MSC in adhering to of returning to MS, and MS directly initiates the location registers flow process according to this indication information from the CS territory.
SGSN detects and shows in dynamic subscriber's data that Gs interface has been united and the subsystem-prohibited of MS corresponding VLR numbering in SGSN or destination signaling point when unreachable, determines joint position service Gs interface fault.
A kind of communication system comprises: travelling carriage and Serving GPRS Support Node (SGSN); Described SGSN detects the state of joint position service Gs interface after receiving the request of Mobile Originated periodicity Routing Area Update, and the travelling carriage (MS) that notice is initiated this request when determining its fault; Described travelling carriage receives the notice back and initiates the location registers flow process in independent circuit switching (CS) territory.
The present invention has following beneficial effect:
When the present invention is broken down at joint position service Gs interface, utilize periodically Routing Area Update flow process, mobile switching centre is unreachable by SGSN notice travelling carriage, make travelling carriage can in time know fault, automatically initiate the location registers flow process in independent CS territory, thereby avoid when Gs interface breaks down, influencing the speech business in CS territory, guarantee that PS territory and CS's is professional unaffected.
Description of drawings
Fig. 1 is a periodicity Routing Area Update flow chart in the prior art;
Fig. 2 is the networking schematic diagram of communication system among the present invention;
When Fig. 3, Fig. 4, Fig. 5 are respectively in the embodiment of the invention joint position service Gs interface fault, realize that by different modes travelling carriage initiates the flow chart of location registers flow process from the CS territory.
Embodiment
In order to solve when joint position service Gs interface breaks down, can't be to the problem of called subscriber's issuing page message, the present invention utilizes periodically Routing Area Update flow process, by the malfunction notice travelling carriage of SGSN with joint position service Gs interface, make travelling carriage can in time know fault and the automatic location registers flow process of initiating independent CS territory, thereby avoid influencing the speech business on basis.
Consult shown in Figure 2ly, the communication system in the present embodiment comprises user equipment (UE) (being mobile station MS), radio network controller (RNC), base station node B, Serving GPRS Support Node SGSN and moving exchanging center MSC.RNC links to each other with packet domain (SGSN) and broadcast domain (BC) with circuit domain (MSC) by the Iu interface, is used to control the Radio Resource of UTRAN.Node B finishes the conversion of the data flow between Iub interface and the Uu interface.MSC is the distinctive equipment of circuit domain, is used to connect wireless system (comprising BSS, RNS) and fixed network.MSC finishes circuit type and calls out all functions, continue as controlling call, management MS in present networks or with the communication service of other networks (as PSTN/ISDN/PSPDN, other mobile networks etc.), and provide charge information.SGSN is the distinctive equipment in grouping PS territory, being connected of core net and wireless access system BSS, RNS is provided, finish the functions such as mobile management, session management of multicomponent data business, management MS moving and communication service in the mobile network, and charge information etc. is provided; In periodicity Routing Area Update flow process, SGSN checks whether fault of joint position service Gs after receiving the periodicity Routing Area Update request message that MS sends, notify described UE when determining its fault; UE then initiates the location registers flow process in independent CS territory automatically.
In the present embodiment, SGSN detects Gs united state in dynamic subscriber's data (Gs associationstatus) for uniting (Gs associated), and when the subsystem-prohibited of MS corresponding VLR numbering in SGSN or destination signaling point are unreachable, determine joint position service Gs interface fault.
In order in existing message, to carry failure indication information, present embodiment increases new Reason For Denial value-mobile switching centre unreachable (MSC unreachable) in 3GPP TS24.008 protocol tables 10.5.95, the numerical value of its value for not conflicting with original definition, as 18, its schematically as follows:
Reason For Denial value (octet2)
Bit 87654321
Corresponding value 00010010//expression mobile switching centre unreachable (MSC unreachable)
When definite joint position service Gs interface broke down, SGSN and MS can adopt following processing mode:
Mode A, SGSN accept to carry in the message Reason For Denial value-mobile switching centre unreachable (MSC unreachable) at the Routing Area Update that returns to MS.
After the GPRS characteristic success of user's periodicity Routing Area Update, SGSN sends Routing Area Update to MS and accepts (Routeing Area Update Accept) message, wherein upgrade result (update result) and be successful for GPRS services only, and the Reason For Denial value is: MSC unreachable.
For the MS of mode A, (only uniting and just having the co-location business after adhering to successfully under the situation of network schemer 1.Unite adhere to successfully after, the state of Gs interface is association, and unite the necessary condition of adhering to success be exactly network schemer be 1.), after receiving that Routing Area Update is accepted message, find that upgrading result (update result) is successful for GPRS service only, the cause value of refusal is: MSC unreachable, then initiate position register request (Location update request) from the CS territory.
Mode B, SGSN accept to carry in the message the temporary transient untouchable indication information of MSC (MSC temporary not reachable) in adhering to of returning to MS.
In user's associating attachment flow (combined RA/LA update), periodically after the success of the GPRS characteristic of Routing Area Update, SGSN sends to MS and adheres to acceptance (Attach Aceept) message, wherein adhere to the result and be successful for GPRS services only (or only gprs attach), and the Reason For Denial value is: the temporary transient unreachable MSC temporary not reachable of MSC.
MS for operator scheme A (this pattern allows the professional and PS business of CS), under the situation of network schemer 1, at associating attachment flow (attach request, type is combined gprs imsi attach) time, receive adhere to acceptance (attach accept) message after, it is successful for GPRSservices only (or only gprs attach) that the result is adhered in discovery, the cause value of refusal is: MSC temporary notteachable, again initiate the associating attachment flow, and, MS after the number of times that triggers associating attachment flow reaches predetermined value from CS territory initiation position register request (Location update request).
Mode C, SGSN accept to carry in the message (attach accept) Reason For Denial value-mobile switching centre unreachable (MSC unreachable) in adhering to of returning to MS.
In user's associating attachment flow (combined RA/LAupdate), periodically after the success of the GPRS characteristic of Routing Area Update, SGSN sends to MS and adheres to acceptance (Attach Accept) message, wherein adhere to the result and be successful for GPRS services only (or only gprs attach), and the Reason For Denial value is: MSC unreachable.
MS for operator scheme A, under the situation of network schemer 1, at associating attachment flow (attachrequest, type is combined gprs imsi attach) time, receive adhere to acceptance (attach accept) message after, it is only gprs attach that the result is adhered in discovery, and the cause value of refusal is: MSC unreachable, then initiate position register request (Location update request) from the CS territory.
Below describe realization flow respectively in conjunction with the accompanying drawings in detail at above-mentioned three kinds of modes:
Send periodically Routing Area Update request to SGSN for mode A:MS, after SGSN carries out authentication and encryption flow, judge that the joint position service Gs interface state is Gs associating and Gs fault, the information that sends Routing Area Update acceptance is to travelling carriage, wherein upgrading the result is " only gprs service success ", reason is above-mentioned newly-increased Reason For Denial value " mobile switching centre is unreachable ", and MS initiates the location registers flow process in independent CS territory automatically according to this notice.Consult Fig. 3, the handling process of SGSN after detecting position consolidated traffic Gs interface fault is as follows:
Step 31, MS send the Routing Area Update request to SGSN.The type of upgrading is the periodicity Routing Area Update.
Step 32, SGSN carry out safety function, comprise authentication and encryption flow.
Step 33, SGSN detect the Gs interface situation: when the dynamic subscriber data mode of MS in SGSN is the unreachable or Gs subsystem-prohibited of the Gs interface destination signaling point of Gs associating (Gs associated) and MS corresponding VLR numbering in SGSN, think joint position service Gs interface fault.
Step 34, when joint position service Gs interface fault, SGSN sends Routing Area Update and accepts message to MS, wherein upgrading the result is " only gprs service success " (successful for GPRS servicesonly), and reason is " mobile switching centre is unreachable " (MSC unreachable).
Step 35, MS send Routing Area Update and finish message to SGSN.
Step 36, MS carry out the location registers flow process (its processing procedure is same as the prior art, repeats no more) in independent CS territory.
Send periodically Routing Area Update request to SGSN for mode B:MS, after SGSN carries out authentication and encryption flow, judge that the Gs interface state is Gs associating and Gs fault, send refusal Routing Area Update message to MS, MS initiates the associating attachment flow again, MS finishes after the adhering to of PS territory, SGSN sends to adhere to MS and accepts message, carry " mobile switching centre is unreachable temporarily " cause value and " only GPRS adhere to result ", make MS initiate once more to unite to adhere to, to the CS territory adhere to the inferior failure of N (get N＞=5 in this example, N is according to the desirable different value of agreement) after, MS initiates independent CS territory location registers flow process.Consult shown in Figure 4ly, the handling process of SGSN after detecting position consolidated traffic Gs interface fault is as follows:
Step 41, MS send the Routing Area Update request to SGSN, and the type of renewal is the periodicity Routing Area Update.
Step 42, SGSN carry out safety function, comprise authentication and encryption flow.
Step 43, SGSN detect the Gs interface situation: when the dynamic subscriber data mode of MS in SGSN is the unreachable or Gs subsystem-prohibited of the Gs interface destination signaling point of Gs associating and MS corresponding VLR numbering in SGSN, think joint position service Gs interface fault.
After step 44, SGSN detect joint position service Gs interface fault, SGSN sends Routing Area Update Reject message to MS, and this message is carried following content: the gmm reason: " implicit detach " (implicitlydetach), be forced to wait for (Force to standby): " be forced to wait for and adhere to again " (force to standbyreattach).
Step 45, MS initiate the associating attachment flow, send Attach Request message to SGSN, and the type of attachment of carrying is " associating GPRS international mobile subscriber identity adheres to " (Combined GPRS imsiattach).
Step 46, authentication ciphering flow process comprise that core net is to the authentication of mobile phone and the mobile phone authentication process to core net.
Step 47, MS finish adhering to of PS territory, and SGSN sends to adhere to and accepts message to MS, and the result that adheres to who carries is MSC temporary notreachable for " only GPRS adheres to " (only gprs attached), cause value, and promptly the CS territory is adhered to unsuccessful.
Step 48, MS carry out repeatedly (as carrying out 4 times) again and unite and adhere to, adhering to of CS territory all unsuccessful (omitting its reciprocal process among the figure).
Step 49, MS initiate independent CS territory location registers flow process.
Send periodically Routing Area Update request to SGSN for mode C:MS, after SGSN carries out authentication and encryption flow, judge that the Gs interface state is Gs associating and fault, send refusal Routing Area Update message to MS, MS initiates the associating attachment flow again, SGSN judges that the Gs interface state still is Gs associating and fault, send to adhere to MS and accept message, carry the above-mentioned newly-increased Reason For Denial value " mobile switching centre is unreachable " and the result of " only GPRS adheres to ", MS initiates independent CS territory location registers flow process.Consult shown in Figure 5ly, the handling process of SGSN after detecting position consolidated traffic Gs interface fault is as follows:
Step 51, MS send the Routing Area Update request to SGSN, and the type of renewal is the periodicity Routing Area Update.
Step 52, SGSN carry out safety verification, comprise authentication and encryption flow.
Step 53, SGSN detect the Gs interface situation: when the dynamic subscriber data mode of MS in SGSN is the unreachable or Gs subsystem-prohibited of the Gs interface destination signaling point of Gs associating and MS corresponding VLR numbering in SGSN, think joint position service Gs interface fault.
Step 54, when joint position service Gs interface fault, SGSN sends Routing Area Update Reject message to MS, and this message is carried following content: the gmm reason: " implicit detach (implicitly detach) ", be forced to wait for (Force to standby): " be forced to wait for and adhere to again " (force to standby reattach).
Step 55, MS initiate the associating attachment flow, send and adhere to request to SGSN, and the type of attachment of carrying is " associating GPRS international mobile subscriber identity adheres to " (Combined gprs imsi attach).
Step 56, authentication ciphering flow process.Comprise that core net is to the authentication of mobile phone and the mobile phone authentication process to core net.
Step 57, SGSN detect the Gs interface situation: when the dynamic subscriber data mode of MS in SGSN is the unreachable or Gs subsystem-prohibited of the Gs interface destination signaling point of Gs associating and MS corresponding VLR numbering in SGSN, confirm joint position service Gs interface fault.
Step 58, when confirming joint position service Gs interface fault, SGSN sends to adhere to and accepts message to MS, and the result that adheres to who carries is " mobile switching centre unreachable (MSC unreachable) " for " only GPRS adheres to " (only gprs attached), cause value.
Step 59, MS carry out the location registers flow process in independent CS territory, promptly initiate the position updating request flow process from the CS territory and give MSC.
When the present invention is broken down at joint position service Gs interface, utilize periodically Routing Area Update flow process, mobile switching centre is unreachable by SGSN notice travelling carriage, make travelling carriage can in time know fault, automatically initiate the location registers flow process in independent CS territory, having solved that user in the prior art does in the CS territory when called can't distributing paging and the professional interactional problem in CS territory and PS territory.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (14)
1, a kind of method of handling joint position service Gs interface fault is characterized in that, may further comprise the steps:
Receive the periodically state of Routing Area Update requested service GPRS Support Node (SGSN) detection joint position service Gs interface, and the travelling carriage (MS) that notice is initiated this request when determining its fault;
Described travelling carriage receives the notice back and initiates the location registers flow process from circuit switching (CS) territory.
2, the method for claim 1 is characterized in that, SGSN accepts to carry in the message the untouchable indication information of mobile switching centre (MSC) at the Routing Area Update that returns to MS, with notice travelling carriage joint position service Gs interface fault.
3, method as claimed in claim 2 is characterized in that, when MS accepted to carry in the message the untouchable indication of mobile switching centre (MSC) at definite described Routing Area Update, MS directly initiated the location registers flow process from the CS territory.
4, the method for claim 1 is characterized in that, SGSN is by returning Routing Area Update Reject message to MS, with notice travelling carriage joint position service Gs interface fault.
5, method as claimed in claim 4, it is characterized in that, MS triggers the associating attachment flow after receiving Routing Area Update Reject message, SGSN accepts to carry in the message the temporary transient untouchable indication information of MSC in adhering to of returning to MS, make MS trigger the associating attachment flow once more, and, MS after the number of times that triggers associating attachment flow reaches predetermined value from CS territory initiation location registers flow process.
6, method as claimed in claim 4, it is characterized in that, MS triggers the associating attachment flow after receiving Routing Area Update Reject message, and SGSN accepts to carry in the message the untouchable indication information of MSC in adhering to of returning to MS, and MS directly initiates the location registers flow process according to this indication information from the CS territory.
7, as one of claim 1 to 6 described method, it is characterized in that, SGSN detects and shows in dynamic subscriber's data that Gs interface has been united and the subsystem-prohibited of MS corresponding VLR numbering in SGSN or destination signaling point when unreachable, determines joint position service Gs interface fault.
8, a kind of communication system is characterized in that, comprising: travelling carriage and Serving GPRS Support Node (SGSN); Described SGSN detects the state of joint position service Gs interface after receiving the request of Mobile Originated periodicity Routing Area Update, and the travelling carriage (MS) that notice is initiated this request when determining its fault; Described travelling carriage receives the notice back and initiates the location registers flow process from circuit switching (CS) territory.
9, communication system as claimed in claim 8 is characterized in that, described SGSN accepts to carry in the message the untouchable indication information of mobile switching centre (MSC) at the Routing Area Update that returns to MS, with notice travelling carriage joint position service Gs interface fault.
10, communication system as claimed in claim 9 is characterized in that, when MS accepted to carry in the message the untouchable indication of mobile switching centre (MSC) at definite described Routing Area Update, MS directly initiated the location registers flow process from the CS territory.
11, communication system as claimed in claim 8 is characterized in that, described SGSN returns Routing Area Update Reject message to MS, with notice MS joint position service Gs interface fault.
12, communication system as claimed in claim 11, it is characterized in that, MS triggers the associating attachment flow after receiving Routing Area Update Reject message, SGSN accepts to carry in the message the temporary transient untouchable indication information of MSC in adhering to of returning to MS, make MS trigger the associating attachment flow once more, and, MS after the number of times that triggers associating attachment flow reaches predetermined value from CS territory initiation location registers flow process.
13, communication system as claimed in claim 11, it is characterized in that, MS triggers the associating attachment flow after receiving Routing Area Update Reject message, SGSN accepts to carry in the message the untouchable indication information of MSC in adhering to of returning to MS, and MS directly initiates the location registers flow process according to this indication information from the CS territory.
14, as each described communication system of claim 8 to 13, it is characterized in that, described SGSN detects and shows in dynamic subscriber's data that Gs interface unites, and when the subsystem-prohibited of MS corresponding VLR numbering in SGSN or destination signaling point are unreachable, determine joint position service Gs interface fault.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010057357A1 (en) * | 2008-11-20 | 2010-05-27 | 华为技术有限公司 | Mobility management network element, network recovery method and system |
| CN103391578A (en) * | 2012-05-07 | 2013-11-13 | 宏达国际电子股份有限公司 | Mobile communication device and method for handling combined attach or routing area update procedure |
| CN105594266A (en) * | 2013-10-31 | 2016-05-18 | 英特尔Ip公司 | User equipment and mobility management entity and methods for periodic update in cellular networks |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020061756A1 (en) * | 2000-11-17 | 2002-05-23 | Bleckert Peter Nils Olov | Paging co-ordination in telecommunication networks |
| SE0300537D0 (en) * | 2003-02-28 | 2003-02-28 | Ericsson Telefon Ab L M | Signaling method |
| JP4291724B2 (en) * | 2004-03-31 | 2009-07-08 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile communication method and mobile station |
| CN100359964C (en) * | 2004-05-21 | 2008-01-02 | 华为技术有限公司 | Message processing method of Gs interface |
-
2006
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010057357A1 (en) * | 2008-11-20 | 2010-05-27 | 华为技术有限公司 | Mobility management network element, network recovery method and system |
| CN103391578A (en) * | 2012-05-07 | 2013-11-13 | 宏达国际电子股份有限公司 | Mobile communication device and method for handling combined attach or routing area update procedure |
| US9374797B2 (en) | 2012-05-07 | 2016-06-21 | Htc Corporation | Mobile communication devices and methods for handling a combined attach or routing area update procedure successful for PS domain services only |
| CN105594266A (en) * | 2013-10-31 | 2016-05-18 | 英特尔Ip公司 | User equipment and mobility management entity and methods for periodic update in cellular networks |
| CN105594266B (en) * | 2013-10-31 | 2019-06-18 | 英特尔Ip公司 | User equipment, mobility management entity and method in cellular network for periodically updating |
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| CN100411470C (en) | 2008-08-13 |
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Effective date of registration: 20211220 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: Super fusion Digital Technology Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |