CN101917696B - Home subscriber server (HSS) by-pass method and interrogating call session control function (I-CSCF) equipment - Google Patents
Home subscriber server (HSS) by-pass method and interrogating call session control function (I-CSCF) equipment Download PDFInfo
- Publication number
- CN101917696B CN101917696B CN201010244654.0A CN201010244654A CN101917696B CN 101917696 B CN101917696 B CN 101917696B CN 201010244654 A CN201010244654 A CN 201010244654A CN 101917696 B CN101917696 B CN 101917696B
- Authority
- CN
- China
- Prior art keywords
- session control
- call session
- control functional
- functional equipment
- subscriber server
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to an HSS (Home Subscriber Server) by-pass method in an IMS (IP Multimedia Network), which comprises the following steps of: determining a called number to be acquired with physical position information after I-CSCF (Interrogating Call Session Control Function) equipment of a called subscriber home network receives a call request; inquiring a corresponding HSS by the I-CSCF equipment according to the called number, detecting a communication signaling between the I-CSCF equipment and the HSS and judging whether the communication signaling is abnormal or not; and if so, selecting S-CSCF (Subscriber Call Session Control Function) equipment corresponding to the called number by the I-CSCF equipment according to a pre-configured selection strategy per se and transmitting the call request to the selected S-CSCF equipment so as to complete subsequent call treatment. The invention also relates to the I-CSCF equipment, which carries out detection on the communication signaling between the I-CSCF equipment and the HSS so as to timely detect whether the communication connection is abnormal or not, and when the communication connection is judged to be abnormal, the physical position information of a called subscriber is selected according to the pre-configured selection strategy so as to ensure that the call can be still continued to the called subscriber, therefore, the communication security of the subscriber is guaranteed to the maximum extent, and the possibility that subscribers in a large area cannot be called is reduced.
Description
Technical field
The present invention relates to IP Multimedia System (IP Multimedia Subsystem, be called for short IMS) network technology, relate in particular to a kind of home subscriber server (Home Subscriber Server that in the IMS network, realizes, abbreviation HSS) method of bypass (Bypass) and query call conversation control function (Interrogating Call Session Control Function is called for short I-CSCF) equipment.
Background technology
Along with the gradual perfection of IMS technology, now generally approved by operator, and be widely used in the next generation network framework of Operator Specific Service fusion and Transformation Strategy.HSS is the functional entity of framework on the IMS network, and centralized stores IMS network user data are carried out user's authentication and mandate, and the information of relevant user's physical location can be provided.
IMS user is when called, the I-CSCF of called subscriber's home network need to arrive the physical location information of the upper inquiring user of HSS, but when signaling between I-CSCF and the HSS is connected when unusual, the I-CSCF that is called subscriber's home network judges that calling can't continue to the called subscriber in the time of can't obtaining called subscriber's physical location information (being the S-CSCF that the called subscriber registers) from HSS.Therefore, when signaling between called home network I-CSCF and the HSS is connected when unusual, the called subscriber can be failed for whole callings of the user that this HSS stores.Because the concentrated setting of HSS, the number of users of the upper storage of HSS is large, and this will cause large-area user all can't do called abominable communication event.
Summary of the invention
The objective of the invention is to propose a kind of HSS by-pass method and I-CSCF equipment, can be connected with the HSS signaling at the I-CSCF of called subscriber's home network when unusual, still can guarantee follow-up call proceeding, at utmost ensure user's communication security, greatly reduce the large tracts of land user and can't make called possibility.
For achieving the above object, the invention provides a kind of home subscriber server by-pass method, comprising:
The query call session control functional equipment of called subscriber's home network determines to obtain the called number of physical location information after receiving call request;
Described query call session control functional equipment inquires corresponding home subscriber server according to described called number, and the communication signaling between detection and this home subscriber server, judges whether described communication signaling is unusual;
If judge that described communication signaling is unusual, then described query call session control functional equipment is according to self pre-configured selection strategy selection service type call session control functional equipment (S-CSCF equipment) corresponding with described called number, described call request is sent to the described service type call session control functional equipment of selecting, process to finish subsequent voice calls.
Further, the operation that sets in advance selection strategy in described query call session control functional equipment comprises:
In user's register flow path, home subscriber server issues registered user's capability set to described query call session control functional equipment, and registered user's capability set all adopts identical acquiescence capability set with other registered users;
Described query call session control functional equipment is set up registered user's capability set and the corresponding relation of service type call session control functional equipment, and the configuration selection strategy, then selects suitable service type call session control functional equipment according to this selection strategy.
Further, the communication signaling between described detection and this home subscriber server, judge whether unusual operation is specially described communication signaling:
Described query call session control functional equipment is created to checking, mandate and accounting agreement (the Diameter AAA Protocol of described home subscriber server, be called for short Diameter) link, judge by checking, mandate and accounting agreement link detecting mechanism whether checking, mandate and accounting agreement link interrupt, interrupt if described query call session control functional equipment is connected all with all checkings, mandate and accounting agreement between the described home subscriber server, determine that then described communication signaling is unusual.
Further, if judge that described communication signaling is normal, then described query call session control functional equipment inquires the service type call session control functional equipment of described called subscriber's registration to described home subscriber server, and described call request sent to the described service type call session control functional equipment that inquires, process to finish subsequent voice calls.
For achieving the above object, the invention provides a kind of query call session control functional equipment, comprising:
The called number determination module is used for determining to obtain the called number of physical location information after receiving call request;
The communication signaling detection module is used for inquiring corresponding home subscriber server according to described called number, and the communication signaling between detection and this home subscriber server, judges whether described communication signaling is unusual;
Selection strategy is preserved module, is used for preserving the pre-configured selection strategy corresponding with Subscriber Number;
Select module, be used for when judging that described communication signaling is unusual, selecting the service type call session control functional equipment corresponding with described called number according to described selection strategy;
The first call request sending module is used for described call request is sent to the described service type call session control functional equipment that described selection module is selected, and processes to finish subsequent voice calls.
Further, described communication signaling detection module specifically comprises:
The home subscriber server enquiry module is used for inquiring corresponding home subscriber server according to described called number;
Checking, mandate and accounting agreement link establishment module are for the checking, mandate and the accounting agreement link that are created to described home subscriber server;
The link down judge module is used for judging by checking, mandate and accounting agreement link detecting mechanism whether checking, mandate and accounting agreement link interrupt;
The unusual determination module of signaling is used for being connected with all checkings, mandate and accounting agreement between the described home subscriber server when all interrupting at described query call session control functional equipment, determines that described communication signaling is unusual.
Further, also comprise:
The physical location enquiry module is used for when judging that described communication signaling is normal, inquires about the service type call session control functional equipment of described called subscriber's registration to described home subscriber server;
The second call request sending module is used for described call request is sent to the described service type call session control functional equipment that inquires, and processes to finish subsequent voice calls.
Further, also comprise:
The capability set receiver module is used at user's register flow path, the registered user's that the reception home subscriber server issues capability set, and registered user's capability set all adopts identical acquiescence capability set with other registered users;
Corresponding relation building module is used for setting up registered user's capability set and the corresponding relation of service type call session control functional equipment;
The selection strategy configuration module is used for the configuration selection strategy, and selects suitable service type call session control functional equipment according to this selection strategy.
Based on technique scheme, communication signaling in the IMS network of the present invention between I-CSCF equipment pair and the HSS checks, whether in time detect communication connection unusual, when being judged to be when unusual, select called subscriber's physical location information according to pre-configured selection strategy, calling still can be continued to the called subscriber, thereby at utmost ensure user's communication security, greatly reduce the large tracts of land user and can't make called possibility.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the schematic flow sheet of an embodiment of HSS by-pass method of the present invention.
Fig. 2 is the schematic flow sheet of another embodiment of HSS by-pass method of the present invention.
Fig. 3 is the schematic flow sheet of the another embodiment of HSS by-pass method of the present invention.
Fig. 4 is the structural representation of an embodiment of I-CSCF equipment of the present invention.
Fig. 5 is the structural representation of another embodiment of I-CSCF equipment of the present invention.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
In the prior art, the I-CSCF equipment in the IMS network and HSS between during communication abnormality, just can't obtain from HSS called subscriber's physical location information, therefore can't finish follow-up call proceeding.Because follow-up call proceeding will be guaranteed by called subscriber's physical location information, therefore the present invention is from another angle, so that I-CSCF equipment and HSS between during communication abnormality, still can obtain the called subscriber's that needs physical location information, thereby guarantee follow-up call proceeding.
As shown in Figure 1, be the schematic flow sheet of an embodiment of HSS by-pass method of the present invention.In the present embodiment, the HSS by-pass method comprises following flow process:
The I-CSCF equipment of step 101, called subscriber's home network determines to obtain the called number of physical location information after receiving call request;
Communication signaling between step 103, I-CSCF equipment Inspection and this HSS judges whether communication signaling is unusual;
If step 104 judges that communication signaling is unusual, then I-CSCF equipment is according to self the pre-configured selection strategy selection S-CSCF equipment corresponding with called number;
In the present embodiment, the I-CSCF equipment of called subscriber's home network is after receiving call request, check whether HSS and the communication signaling between self that called number is corresponding be unusual, if unusual then select S-CSCF equipment corresponding to called number by self pre-configured selection strategy, thereby substituted the process of obtaining S-CSCF equipment corresponding to called number from HSS, avoided this to obtain the problem that causes call request to continue when flow process can't be carried out, thereby at utmost ensure user's communication security, greatly reduce the large tracts of land user and can't make called possibility.
The schematic flow sheet of selection strategy is set among another embodiment for HSS by-pass method of the present invention as shown in Figure 2.Compare with a upper embodiment, present embodiment has also increased the operating process that I-CSCF equipment arranges selection strategy, and this setting up procedure specifically comprises:
Then step 203, I-CSCF equipment configuration selection strategy select suitable S-CSCF equipment according to this selection strategy.
In user's register flow path, HSS issues registered user's capability set to I-CSCF equipment, and I-CSCF equipment is set up corresponding relation with at least one S-CSCF equipment according to this registered user's capability set.
I-CSCF equipment arranges selection strategy, according to selecting a well-determined S-CSCF equipment for this registered user can be from this registered user's the capability set corresponding S-CSCF equipment of the selection strategy of setting, the S-CSCF equipment that should determine is relevant with Subscriber Number, and the S-CSCF equipment of selecting according to selection strategy for each register flow path of same Subscriber Number is identical.
Because I-CSCF equipment is still according to this selection strategy when registered user's called and selects, the S-CSCF equipment of selecting in the time of therefore can selecting registration, thus guarantee carrying out smoothly of call proceeding.If but the capability set of different user is different, and different capability sets can corresponding different S-CSCF equipment, if I-CSCF can't inquire the user capability collection from HSS when registered user's called, the S-CSCF equipment that then I-CSCF possibly can't guarantee selects selects when being registration, thus the call proceeding failure caused.
As shown in Figure 3, be the schematic flow sheet of the another embodiment of HSS by-pass method of the present invention.Than the first two embodiment, present embodiment has comprised concrete detection and the deterministic process that communication signaling is unusual, specifically comprises:
The I-CSCF equipment of step 301, called subscriber's home network determines to obtain the called number of physical location information after receiving call request;
If step 305 judges that communication signaling is unusual, then I-CSCF equipment is according to self the pre-configured selection strategy selection S-CSCF equipment corresponding with called number;
The S-CSCF equipment that step 307, I-CSCF equipment are registered to HSS inquiry called subscriber;
In the present embodiment, adopted the link detecting mechanism of Diameter, this Diameter is to provide authentication for the application program such as move such as access to netwoks or IP, authorize and charging (AAA) structure designed, be to design as the modified version of Radius agreement.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
As shown in Figure 4, be the structural representation of an embodiment of I-CSCF equipment of the present invention.I-CSCF equipment comprises in the present embodiment: called number determination module 1, communication signaling detection module 2, selection strategy are preserved module 3, are selected module 4 and the first call request sending module 5.
Wherein, called number determination module 1 is used for determining to obtain the called number of physical location information after receiving call request.Communication signaling detection module 2 is used for inquiring corresponding HSS according to described called number, and the communication signaling between detection and this HSS, judges whether described communication signaling is unusual.Selection strategy is preserved module 3 and is used for preserving the pre-configured selection strategy corresponding with the number user.Select module 4 to be used for when judging that described communication signaling is unusual, selecting the S-CSCF equipment corresponding with described called number according to described selection strategy.The first call request sending module 5 is used for described call request is sent to the S-CSCF equipment of selecting module 4 to select, processes to finish subsequent voice calls.
Present embodiment has added preservation and the selection module of detection module and the selection strategy of communication signaling in I-CSCF equipment, so that I-CSCF equipment determine and HSS between communication signaling when unusual, can select physical location information corresponding to called subscriber by selection strategy, thereby finish follow-up call treatment.
In another embodiment, communication signaling detection module 2 can specifically comprise: the home subscriber server enquiry module is used for inquiring corresponding home subscriber server according to described called number; Diameter link establishment module is for the Diameter link that is created to HSS; The link down judge module is used for judging by Diameter link detecting mechanism whether the Diameter link interrupts; The unusual determination module of signaling is used for being connected with all Diameter between the HSS when all interrupting at I-CSCF equipment, determines that communication signaling is unusual.
In another embodiment, I-CSCF equipment also comprises: the capability set receiver module, be used at user's register flow path, and the registered user's that reception HSS issues capability set, registered user's capability set all adopts identical acquiescence capability set with other registered users; Corresponding relation building module is used for setting up registered user's capability set and the corresponding relation of S-CSCF; The selection strategy configuration module is used for the configuration selection strategy, and selects suitable S-CSCF according to this selection strategy.
As shown in Figure 5, be the structural representation of another embodiment of I-CSCF equipment of the present invention.Compare with a upper embodiment, present embodiment also comprises: physical location enquiry module 6 and the second call request sending module 7, wherein physical location enquiry module 6 is used for when judging that described communication signaling is normal, inquires about the S-CSCF equipment of described called subscriber's registration to HSS.The second call request sending module 7 is used for call request is sent to the S-CSCF equipment that inquires, and processes to finish subsequent voice calls.Present embodiment has provided the processing mode when judging that communication is normal.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (7)
1. home subscriber server by-pass method comprises:
The query call session control functional equipment of called subscriber's home network determines to obtain the called number of physical location information after receiving call request;
Described query call session control functional equipment inquires corresponding home subscriber server according to described called number, and the communication signaling between detection and this home subscriber server, judges whether described communication signaling is unusual;
If judge that described communication signaling is unusual, then described query call session control functional equipment is according to self pre-configured selection strategy selection service type call session control functional equipment corresponding with described called number, described call request is sent to the described service type call session control functional equipment of selecting, process to finish subsequent voice calls;
Communication signaling between described detection and this home subscriber server, judge whether unusual operation is specially described communication signaling:
Described query call session control functional equipment is created to checking, mandate and the accounting agreement link of described home subscriber server, judge by checking, mandate and accounting agreement link detecting mechanism whether checking, mandate and accounting agreement link interrupt, interrupt if described query call session control functional equipment is connected all with all checkings, mandate and accounting agreement between the described home subscriber server, determine that then described communication signaling is unusual.
2. home subscriber server by-pass method according to claim 1, the operation that wherein sets in advance selection strategy in described query call session control functional equipment comprises:
In user's register flow path, home subscriber server issues registered user's capability set to described query call session control functional equipment, and registered user's capability set all adopts identical acquiescence capability set with other registered users;
Described query call session control functional equipment is set up registered user's capability set and the corresponding relation of service type call session control functional equipment, and the configuration selection strategy, then selects suitable service type call session control functional equipment according to this selection strategy.
3. home subscriber server by-pass method according to claim 1, if judge that wherein described communication signaling is normal, then described query call session control functional equipment is inquired about the service type call session control functional equipment of described called subscriber's registration to described home subscriber server, and described call request sent to the described service type call session control functional equipment that inquires, process to finish subsequent voice calls.
4. query call session control functional equipment comprises:
The called number determination module is used for determining to obtain the called number of physical location information after receiving call request;
The communication signaling detection module, be used for inquiring corresponding home subscriber server according to described called number, and the communication signaling between detection and this home subscriber server, judge whether described communication signaling is unusual, communication signaling between wherein said detection and this home subscriber server, judge whether unusual operation is specially described communication signaling: be created to the checking of described home subscriber server, authorize and the accounting agreement link, by checking, authorize and accounting agreement link detecting mechanism judgement checking, whether mandate and accounting agreement link interrupt, if all checkings between described query call session control functional equipment and the described home subscriber server, authorize with accounting agreement to be connected all interruptions, determine that then described communication signaling is unusual;
Selection strategy is preserved module, is used for preserving the pre-configured selection strategy corresponding with the number user;
Select module, be used for when judging that described communication signaling is unusual, selecting the service type call session control functional equipment corresponding with described called number according to described selection strategy;
The first call request sending module is used for described call request is sent to the described service type call session control functional equipment that described selection module is selected, and processes to finish subsequent voice calls.
5. query call session control functional equipment according to claim 4, wherein said communication signaling detection module specifically comprises:
The home subscriber server enquiry module is used for inquiring corresponding home subscriber server according to described called number;
Checking, mandate and accounting agreement link establishment module are for the checking, mandate and the accounting agreement link that are created to described home subscriber server;
The link down judge module is used for judging by checking, mandate and accounting agreement link detecting mechanism whether checking, mandate and accounting agreement link interrupt;
The unusual determination module of signaling is used for being connected with all checkings, mandate and accounting agreement between the described home subscriber server when all interrupting at described query call session control functional equipment, determines that described communication signaling is unusual.
6. query call session control functional equipment according to claim 4 wherein also comprises:
The physical location enquiry module is used for when judging that described communication signaling is normal, inquires about the service type call session control functional equipment of described called subscriber's registration to described home subscriber server;
The second call request sending module is used for described call request is sent to the described service type call session control functional equipment that inquires, and processes to finish subsequent voice calls.
7. query call session control functional equipment according to claim 4 wherein also comprises:
The capability set receiver module is used at user's register flow path, the registered user's that the reception home subscriber server issues capability set, and registered user's capability set all adopts identical acquiescence capability set with other registered users;
Corresponding relation building module is used for setting up registered user's capability set and the corresponding relation of service type call session control functional equipment;
The selection strategy configuration module is used for the configuration selection strategy, and selects suitable service type call session control functional equipment according to this selection strategy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010244654.0A CN101917696B (en) | 2010-07-30 | 2010-07-30 | Home subscriber server (HSS) by-pass method and interrogating call session control function (I-CSCF) equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010244654.0A CN101917696B (en) | 2010-07-30 | 2010-07-30 | Home subscriber server (HSS) by-pass method and interrogating call session control function (I-CSCF) equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101917696A CN101917696A (en) | 2010-12-15 |
| CN101917696B true CN101917696B (en) | 2013-04-03 |
Family
ID=43325058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010244654.0A Active CN101917696B (en) | 2010-07-30 | 2010-07-30 | Home subscriber server (HSS) by-pass method and interrogating call session control function (I-CSCF) equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101917696B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104254096A (en) * | 2013-06-26 | 2014-12-31 | 中国电信股份有限公司 | User attribution determination method and system, and call session control function equipment |
| CN104917717B (en) * | 2014-03-10 | 2018-09-07 | 中国移动通信集团北京有限公司 | A kind of method of calling, equipment and system |
| CN111866923B (en) * | 2019-04-24 | 2022-11-29 | 中国移动通信集团安徽有限公司 | VoLTE user account opening data abnormity judgment method and device and network equipment |
| CN115499415B (en) * | 2022-11-17 | 2023-03-28 | 中兴通讯股份有限公司 | Call request processing method, network node and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1612624A (en) * | 2003-10-29 | 2005-05-04 | 大唐电信科技股份有限公司 | Method for automatically starting called service switching for mobile terminal and its attaching device |
| CN1874279A (en) * | 2005-10-21 | 2006-12-06 | 华为技术有限公司 | Method for treating abnormity of registration in procedure of registering users |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100498112B1 (en) * | 2002-10-21 | 2005-07-01 | 에스케이 텔레콤주식회사 | Apparatus and Method for Network management in the All-IP Network of Mobile Telecommunication System |
| US8849267B2 (en) * | 2007-03-20 | 2014-09-30 | Microsoft Corporation | Location-based call control |
-
2010
- 2010-07-30 CN CN201010244654.0A patent/CN101917696B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1612624A (en) * | 2003-10-29 | 2005-05-04 | 大唐电信科技股份有限公司 | Method for automatically starting called service switching for mobile terminal and its attaching device |
| CN1874279A (en) * | 2005-10-21 | 2006-12-06 | 华为技术有限公司 | Method for treating abnormity of registration in procedure of registering users |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101917696A (en) | 2010-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101917696B (en) | Home subscriber server (HSS) by-pass method and interrogating call session control function (I-CSCF) equipment | |
| CN104683289A (en) | Common service entity (CSE) registering method and system | |
| CN111064552B (en) | Intelligent device control method and device, electronic device and storage medium | |
| US20070249338A1 (en) | Method and apparatus for steering of roaming | |
| US9288657B2 (en) | Control domain change based on network registration condition | |
| CN101895915B (en) | Application server by-passing method and service type call session control functional equipment | |
| US9924548B2 (en) | Vehicle connectivity using a desired access point name | |
| CN104883704A (en) | Mobile terminal access point parameter automatic error correction method and apparatus | |
| JP2001128237A (en) | Wireless communication system controller | |
| CN103918295A (en) | Method for preventing fraud or misuse when using a specific service of a public land mobile network by a user equipment, subscriber identity module and application program | |
| CN108495306A (en) | HSS fault recoveries for non-3 GPP access | |
| CN103078873A (en) | Asynchronous fault tolerance method, device and equipment for message | |
| CN101217293B (en) | Media operation trusteeship switching system and method | |
| CN103179540B (en) | The processing method of abnormal conditions and system under a kind of IMS offline charging pattern | |
| CN103051484B (en) | Session service processing method, system and Session Border Controll | |
| CN101505478A (en) | Method, apparatus and system for filtering packets | |
| US10674337B2 (en) | Method and device for processing operation for device peripheral | |
| US10079893B2 (en) | M2M application request sending method, CSE and system | |
| CN101997860B (en) | Method and device for communication link detection management in NGN network architecture | |
| CN109637188A (en) | Unmanned parking lot management method and system based on Session Initiation Protocol | |
| US10715679B1 (en) | System and method for detecting instances of missing data records in usage data records generated for wireless services | |
| CN105763524A (en) | Registration method in IP multimedia subsystem, device and system | |
| CN106302077A (en) | A kind of disaster tolerance returning method and equipment | |
| CN110233761B (en) | Redundancy switching method and system based on relay server | |
| US10405180B2 (en) | Stub network establishing method, device and system, and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |