CN105682153A - SSD (Shared Secret Data) updating method during fallback from LTE (Long Term Evolution) network to CS (Circuit Switch) domain, media switch center and communication system - Google Patents
SSD (Shared Secret Data) updating method during fallback from LTE (Long Term Evolution) network to CS (Circuit Switch) domain, media switch center and communication system Download PDFInfo
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- 230000000977 initiatory effect Effects 0.000 claims abstract description 19
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
- H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
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Abstract
The invention discloses an SSD (Shared Secret Data) updating method during fallback from an LTE (Long Term Evolution) network to a CS (Circuit Switch) domain, a media switch center and a communication system. The SSD updating method during the fallback from the LTE network to the CS domain comprises the steps of initiating a switching process of switching UE (User Equipment) to a target base station of the CS domain to the media switch center when an interoperation node detects a voice calling service of the CS domain initiated by the UE in the LTE network; and initiating an updating process of updating the SSD of the UE from the media switch center to the target base station so as to finish the updating of the SSD of the UE. Through the scheme of the invention, the UE after falling back to the CS domain (the CDMA2000 network) can finish the switching process firstly and then finish the SSD updating process of the UE, so that the problem of a conflict caused by synchronous SSD updating process and switching process of the UE after falling back from the LTE network to the CS domain is avoided.
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of from LTE (LongTermEvolution, Long Term Evolution) network fall back to CS (CircuitSwitch: circuit switching) territory time SSD (Shared Secret Data) update method, mobile switching centre and communication system.
Background technology
LTE (LongTermEvolution, Long Term Evolution) it is by 3GPP (The3rdGenerationPartnershipProject, third generation partner program) Long Term Evolution of UMTS (UniversalMobileTelecommunicationsSystem, UMTS) technical standard organized to set up. LTE network falls back to CDMA2000 network architecture diagram, as it is shown in figure 1, wherein contain following network element:
E-RAN (EvolvedRAN): evolved wireless Access Network, it is provided that higher up-downgoing speed, less transmission delay and relatively reliable being wirelessly transferred. The network element comprised in E-RAN is eNodeB (EvolvedNodeB), and the access for UE (subscriber equipment) provides Radio Resource;
MME (MobilityManagementEntity: mobile management entity, chain of command functional entity, the interim server storing user data, it is responsible for and stores the UE context (ID of such as UE, mobility management states, user security parameters etc.), distribute temporary mark for user, when UE quarters at this tracing area or this network is responsible for this user is authenticated; Process all non-access layer informations between MME and UE; Trigger the paging at SAE.
ServingGW (Gateway): gateway, this gateway is a user entity, is responsible for user face data route processing, and termination is in the downlink data of the UE of idle condition. The SAE of management and storage UE carries (bearer) context, and such as IP carries service parameter and network internal routing iinformation etc. Being the anchor point in 3GPP internal system user face, a user can only have a ServingGW a moment;
IWS (InterworkingSolution): interoperability node. When UE under LTE covering can not process speech business, it is possible to first return back to circuit-domain network, process speech business in circuit-domain network. IWS is responsible for realizing the mutual of the MSC of MME and circuit domain under LTE.
CDMA20001X Access Network: mainly include MS mobile terminal and BTS base station transceiver. Base station transceiver is responsible for wireless signal transmitting-receiving, it is achieved the communication between Radio Network System and mobile platform.
BSC (BaseStationController): base station controller, is responsible for BTS and controls and management, and resource is distributed, and wireless connections are set up, mobile management, power control etc.
MSC (MediaSwitchCenter): mobile switching centre, is responsible for call setup, Route Selection, Call-Control1, and Radio Resource distributes, mobile management, position grade, channel switching etc. in exchange area.
The UE that CDMA20001X is completed accessing by the renewal of Shared Secret Data SSD authenticates. Legacy user, under CDMA2000 network, can authenticate after initiating audio call, and authentication, if it fails, the shared secret data (SSD) update of MSC meeting triggered for user, attempts again authenticating.
Under LTE network, UE determines to initiate audio call, and the LTE networking initial stage, corresponding IMS (IPMultimediaSubsystem:IP IP multimedia subsystem, IMS) does not also have an Erecting and improving, or the consideration of the factor such as other resources balance causes to provide speech business by LTE network. At this moment in EPS (EvolvedPacketSystem: evolved grouping domain system), it is possible to use CSFB (circuit switching fall-back) function, UE falls back to circuit domain by IWS network element and completes speech business. UE complete under LTE network with the call proceeding in MSC territory after, IWS network element can trigger handover request to MSC. But UE completes after falling back to CDMA2000 network, the shared secret data (SSD) update in voice call procedure cannot be completed and cause failed authentication, reason is after completing call proceeding due to UE under LTE network, IWS triggers handover request at once to MSC, if MSC also initiates UE shared secret data (SSD) update flow process while switching over flow process can cause flow process collision problem, cause the shared secret data (SSD) update that cannot complete UE.
Summary of the invention
The main technical problem to be solved in the present invention is, there is provided a kind of from LTE network fall back to CS territory time shared secret data (SSD) update method, mobile switching centre and communication system, solve existing UE and carry out shared secret data (SSD) update flow process and switching flow when falling back to CS territory from LTE network and the problem that leads to a conflict simultaneously.
For solving above-mentioned technical problem, the present invention provide a kind of from long-term evolving network fall back to circuit commutative field time Shared Secret Data update method, including:
Interoperability nodal test when long-term evolving network initiates the voice call service of circuit commutative field to subscriber equipment, is initiated switching flow to mobile switching centre and is switched on the target BS of circuit commutative field by described subscriber equipment;
Mobile switching centre initiates the Shared Secret Data of described subscriber equipment is updated to described target BS.
In an embodiment of the present invention, the voice starting message that described interoperability node sends by judging whether to receive described subscriber equipment judges that described subscriber equipment is whether in the voice call service of long-term evolving network initiation circuit commutative field.
In an embodiment of the present invention, described interoperability nodal test after business, before described mobile switching centre initiation switching flow, also includes after long-term evolving network initiates the audio call of circuit commutative field to subscriber equipment:
Described interoperability node sends CM business request information according to described voice starting message to described mobile switching centre;
After described mobile switching centre receives CM business request information, described subscriber equipment is authenticated, record failed authentication result.
In an embodiment of the present invention, after described subscriber equipment is switched to described target BS, described target BS sends switching completion notice to described mobile switching centre; The more new technological process that described mobile switching centre initiates the Shared Secret Data of described subscriber equipment is updated to described target BS includes:
After described mobile switching centre receives the switching completion notice that described target BS sends, it is more newly requested that record according to described failed authentication result sends, to described subscriber equipment, the Shared Secret Data comprising new authorization data by described target BS, and adopts preset algorithm to be calculated obtaining first verification data described new authorization data;
Described subscriber equipment adopts described preset algorithm to be calculated obtaining the second checking data according to the described Shared Secret Data new authorization data in more newly requested, and feeds back to described mobile switching centre by described target BS;
Described first verification data and described second checking data are compared checking by described mobile switching centre, by described target BS, the result feed back to described subscriber equipment;
Renewal result, when with described second, to be first verification data verify that data are identical to described the result, at first verification data described in local update, and is fed back to described mobile switching centre by described target BS by described subscriber equipment.
In order to solve the problems referred to above, present invention also offers a kind of from long-term evolving network fall back to circuit commutative field time Shared Secret Data update method, including:
Mobile switching centre receives interoperability node at the switching flow detecting that subscriber equipment is initiated when long-term evolving network initiates the voice call service of circuit commutative field, is switched on the target BS of circuit commutative field by described subscriber equipment;
Mobile switching centre initiates the Shared Secret Data of described subscriber equipment is updated to described target BS.
In an embodiment of the present invention, after described subscriber equipment is switched to described target BS, described target BS sends switching completion notice to described mobile switching centre; The more new technological process that described mobile switching centre initiates the Shared Secret Data of described subscriber equipment is updated to described target BS includes:
After described mobile switching centre receives the switching completion notice that described target BS sends, send, to described subscriber equipment, the Shared Secret Data comprising new authorization data either directly through described target BS more newly requested, and adopt preset algorithm to be calculated obtaining first verification data described new authorization data;
Described subscriber equipment adopts described preset algorithm to be calculated obtaining the second checking data according to the described Shared Secret Data new authorization data in more newly requested, and feeds back to described mobile switching centre by described target BS;
Described first verification data and described second checking data are compared checking by described mobile switching centre, by described target BS, the result feed back to described subscriber equipment;
Renewal result, when with described second, to be first verification data verify that data are identical to described the result, at first verification data described in local update, and is fed back to described mobile switching centre by described target BS by described subscriber equipment.
In order to solve the problems referred to above, present invention also offers a kind of communication system, including interoperability node, mobile switching centre and target BS;
Described interoperability node is for detecting that subscriber equipment is when long-term evolving network initiates the voice call service of circuit commutative field, initiates switching flow to described mobile switching centre and is switched on the described target BS of circuit commutative field by described subscriber equipment;
Described mobile switching centre is for initiating the Shared Secret Data of described subscriber equipment is updated to described target BS.
In an embodiment of the present invention, the voice starting message that described interoperability node sends by judging whether to receive described subscriber equipment judges that described subscriber equipment is whether in the voice call service of long-term evolving network initiation circuit commutative field.
In an embodiment of the present invention, described interoperability node is additionally operable to detect that subscriber equipment is after long-term evolving network initiates the audio call of circuit commutative field after business, before described mobile switching centre initiation switching flow, send CM business request information according to described voice starting message to described mobile switching centre;
Described subscriber equipment is authenticated after being additionally operable to receive CM business request information by described mobile switching centre, records failed authentication result.
In an embodiment of the present invention, described target BS is additionally operable to after switching completes, and sends switching completion notice to described mobile switching centre; The more new technological process that described mobile switching centre initiates the Shared Secret Data of described subscriber equipment is updated to described target BS includes:
After described mobile switching centre receives the switching completion notice that described target BS sends, it is more newly requested that record according to described failed authentication result sends, to described subscriber equipment, the Shared Secret Data comprising new authorization data by described target BS, and adopts preset algorithm to be calculated obtaining first verification data described new authorization data;
Described subscriber equipment adopts described preset algorithm to be calculated obtaining the second checking data according to the described Shared Secret Data new authorization data in more newly requested, and feeds back to described mobile switching centre by described target BS;
Described first verification data and described second checking data are compared checking by described mobile switching centre, by described target BS, the result feed back to described subscriber equipment;
Renewal result, when with described second, to be first verification data verify that data are identical to described the result, at first verification data described in local update, and is fed back to described mobile switching centre by described target BS by described subscriber equipment.
In an embodiment of the present invention, described target BS is additionally operable to after switching completes, and sends switching completion notice to described mobile switching centre; The more new technological process that described mobile switching centre initiates the Shared Secret Data of described subscriber equipment is updated to described target BS includes:
After described mobile switching centre receives the switching completion notice that described target BS sends, send, to described subscriber equipment, the Shared Secret Data comprising new authorization data by described target BS more newly requested, and adopt preset algorithm to be calculated obtaining first verification data described new authorization data;
Described subscriber equipment adopts described preset algorithm to be calculated obtaining the second checking data according to the described Shared Secret Data new authorization data in more newly requested, and feeds back to described mobile switching centre by described target BS;
Described first verification data and described second checking data are compared checking by described mobile switching centre, by described target BS, the result feed back to described subscriber equipment;
Renewal result, when with described second, to be first verification data verify that data are identical to described the result, at first verification data described in local update, and is fed back to described mobile switching centre by described target BS by described subscriber equipment.
In order to solve the problems referred to above, present invention also offers a kind of mobile switching centre, including handover module and more new module:
Described subscriber equipment, for receiving interoperability node at the switching flow detecting that subscriber equipment is initiated when long-term evolving network initiates the voice call service of circuit commutative field, is switched on the target BS of circuit commutative field by handover module;
More new module is for initiating the Shared Secret Data of described subscriber equipment is updated to described target BS.
The invention has the beneficial effects as follows:
Provided by the invention from LTE network fall back to CS territory time shared secret data (SSD) update method, mobile switching centre and communication system, interoperability nodal test when long-term evolving network initiates the voice call service of circuit commutative field to subscriber equipment, is initiated switching flow to mobile switching centre and is switched on the target BS of circuit commutative field by this subscriber equipment; Then mobile switching centre completes the renewal of the Shared Secret Data to subscriber equipment to the more new technological process that target BS initiates that the Shared Secret Data of subscriber equipment is updated. Can after subscriber equipment falls back to CS territory (i.e. CDMA2000 network) by scheme provided by the invention, can first complete switching flow, then the shared secret data (SSD) update flow process of subscriber equipment is completed again, it is to avoid the problem that UE carries out shared secret data (SSD) update flow process and switching flow when falling back to CS territory from LTE network simultaneously and leads to a conflict.
Accompanying drawing explanation
Fig. 1 is that LTE network falls back to CDMA2000 schematic network structure;
Fig. 2 for the embodiment of the present invention one provide from LTE network fall back to CS territory time shared secret data (SSD) update method flow schematic diagram;
Fig. 3 for the embodiment of the present invention one provide from LTE network fall back to CDMA2000 network time shared secret data (SSD) update method flow schematic diagram;
Mobile switching centre's structural representation that Fig. 4 provides for the embodiment of the present invention one.
Detailed description of the invention
The present invention is described in further detail in conjunction with accompanying drawing below by detailed description of the invention.
Embodiment one:
Shown in Figure 2, what the present embodiment provided is updated method to the SSD of UE when falling back to CS territory from LTE network, including:
Step 201:IWS detects that UE is when LTE network initiates the voice call service in CS territory, initiates switching flow to MSC and is switched on the target BS in CS territory by UE;
Step 202:MSC completes the shared secret data (SSD) update of UE to the more new technological process that target BS initiates that the SSD of UE is updated.
Concrete, shown in Figure 4, mobile switching centre in the present embodiment includes handover module and more new module:
Subscriber equipment, for receiving interoperability node at the switching flow detecting that subscriber equipment is initiated when long-term evolving network initiates the voice call service of circuit commutative field, is switched on the target BS of circuit commutative field by handover module;
More new module is for initiating the Shared Secret Data of subscriber equipment is updated to target BS.
In above-mentioned steps 201, IWS specifically can pass through to judge whether to receive the UE voice sent starting message (specifically can pass through the 1X initial message that GCSNA encapsulates to send) and judge UE whether voice call service in LTE network initiation CS territory; If IWS receives the UE voice sent starting message, it was shown that UE currently initiates voice call service in LTE network, it is necessary to fall after rise to CS territory (i.e. CDMA2000 network); Without receiving, then show that UE is currently without initiating voice call service.
According to existing protocol, IWS detects that UE after business, before MSC initiation switching flow, also includes after LTE network initiates the audio call in CS territory:
IWS sends a corresponding CM business request information according to the voice starting message received to MSC;
UE is authenticated after receiving CM business request information by MSC, and records failed authentication result.
It should be appreciated that above-mentioned steps also can not carry out this step when agreement is changed, but it is made directly switching flow.
After UE is switched to target BS, target BS sends switching completion notice to MSC; The more new technological process that now in above-mentioned steps 202, MSC initiates the SSD of UE is updated to target BS includes:
After MSC receives the switching completion notice that target BS sends, record according to the failed authentication result preserved before is learnt to be needed the SSD of this UE is updated, sent the shared secret data (SSD) update request comprising new authorization data by target BS to UE, and adopt preset algorithm to be calculated obtaining first verification data this new authorization data. Should be understood that, after the switching completion notice that MSC reception target BS in the present embodiment sends learns that switching completes, can also send, either directly through target BS, the shared secret data (SSD) update request comprising new authorization data to UE, whether have be carried out authentication before being not relevant for and authenticating result before is success or failure.
UE adopts the preset algorithm identical with MSC to be calculated obtaining the second checking data according to the new authorization data in the shared secret data (SSD) update request received, and feeds back to MSC by target BS;
First verification data and the second checking data checking of comparing are verified result by MSC, and by target BS, the result are fed back to UE.
Renewal result, when the result is first verification data and the second checking data are identical, at this first verification data of local update, and is fed back to MSC by IWS by user UE, and renewal result now is for being updated successfully; User UE is when the result is first verification data and the second checking data difference, it was shown that this updates failure.
In order to be better understood from the present invention, it is example below in conjunction with the UE process falling back to CDMA2000 network from LTE network, the present invention is done further exemplary illustration, shown in Figure 3, including:
Step 301:UE determines to initiate CS audio call in LTE network;
Step 302:UE sends the 1X initial message (comprising voice starting message) of a GCSNA encapsulation to IWS;
Step 303:IWS creates a corresponding CM business request information after receiving 1X initial message and issues MSC;
Step 304:MSC sends and " assigns request information to IWS;
Step 305:IWS sends " assignment completion message " to MSC, now judges that UE accesses from IWS, does not trigger shared secret data (SSD) update flow process; It should be appreciated that this step and above-mentioned steps 304 are based on the step of existing protocol, when protocol changes, it is possible to do not carry out the two step;
Step 306:IWS sends handover request message to MSC;
Step 307:MSC sends handover request message to corresponding target BS;
Step 308: the Radio Resource that target BS is specified inside assignment messages, base station sends handover request ack message to MSC;
Step 309:MSC sends switching command message to IWS;
Step 310; IWS sends " message is specified in general switching " of GCSNA encapsulation and notifies that UE is switched to CDMA2000 system to UE;
Step 311:EUTRAN system releases S1 user's context, and 4G carrying is suspended;
Step 312:IWS sends switching to UE and starts message;
Step 313:UE is switched to CDMA200 wireless channel, and gets the UE Traffic Channel in CDMA2000 base station;
Step 314:UE sends the target BS handoffing completion message in CDMA2000;
Target BS in step 315:CDMA2000 sends handoff completion message to MSC;
Step 316:MSC sends clear command message to IWS;
Step 317:IWS transmission removes into command messages and notifies that MSC talks clearly except being done to MSC;
Step 318: after having switched, the failed authentication before MSC judgement, the SSD of UE is not updated, starts shared secret data (SSD) update flow process;
It is more newly requested that step 319:MSC sends Shared Secret Data to target BS, and this Shared Secret Data is more newly requested comprises new authorization data, and MSC adopts preset algorithm to be calculated obtaining first verification data to this new authorization data;
Step 320: target BS is transmitted to UE more newly requested for this Shared Secret Data, UE adopts preset algorithm to be calculated obtaining the second checking data and feeding back to target BS to the more newly requested new authorization data comprised of Shared Secret Data, and these the second checking data are transmitted to MSC by " base-station challengeorder " message by target BS;
After step 321:MSC receives the second checking data, judge first verification data and the second checking whether identical result that is verified of data, and this result is sent to target BS by Authentication Response signature by " base station in response challengeresponse " message;
Step 322: this result is transmitted to UE, UE and by target BS, " renewal response " message is transmitted to MSC according to this result after this locality carries out shared secret data (SSD) update by target BS, so far completes the shared secret data (SSD) update of UE.
The visible present invention can after subscriber equipment falls back to CS territory (i.e. CDMA2000 network), it is possible to complete the shared secret data (SSD) update of subscriber equipment after first completing switching flow again. The problem avoiding UE simultaneously to carry out shared secret data (SSD) update flow process and switching flow when falling back to CS territory from LTE network and to lead to a conflict.
Above content is in conjunction with specific embodiment further description made for the present invention, it is impossible to assert that specific embodiment of the invention is confined to these explanations. For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace, protection scope of the present invention all should be considered as belonging to.
Claims (12)
1. one kind from long-term evolving network fall back to circuit commutative field time Shared Secret Data update method, it is characterised in that including:
Interoperability nodal test when long-term evolving network initiates the voice call service of circuit commutative field to subscriber equipment, is initiated switching flow to mobile switching centre and is switched on the target BS of circuit commutative field by described subscriber equipment;
Mobile switching centre initiates the Shared Secret Data of described subscriber equipment is updated to described target BS.
2. as claimed in claim 1 from long-term evolving network fall back to circuit commutative field time Shared Secret Data update method, it is characterized in that, the voice starting message that described interoperability node sends by judging whether to receive described subscriber equipment judges that described subscriber equipment is whether in the voice call service of long-term evolving network initiation circuit commutative field.
3. as claimed in claim 2 from long-term evolving network fall back to circuit commutative field time Shared Secret Data update method, it is characterized in that, described interoperability nodal test to subscriber equipment after long-term evolving network initiates the audio call of circuit commutative field after business, before described mobile switching centre initiation switching flow, also include:
Described interoperability node sends CM business request information according to described voice starting message to described mobile switching centre;
After described mobile switching centre receives CM business request information, described subscriber equipment is authenticated, record failed authentication result.
4. as claimed in claim 3 from long-term evolving network fall back to circuit commutative field time Shared Secret Data update method, it is characterized in that, after described subscriber equipment is switched to described target BS, described target BS sends switching completion notice to described mobile switching centre; The more new technological process that described mobile switching centre initiates the Shared Secret Data of described subscriber equipment is updated to described target BS includes:
After described mobile switching centre receives the switching completion notice that described target BS sends, it is more newly requested that record according to described failed authentication result sends, to described subscriber equipment, the Shared Secret Data comprising new authorization data by described target BS, and adopts preset algorithm to be calculated obtaining first verification data described new authorization data;
Described subscriber equipment adopts described preset algorithm to be calculated obtaining the second checking data according to the described Shared Secret Data new authorization data in more newly requested, and feeds back to described mobile switching centre by described target BS;
Described first verification data and described second checking data are compared checking by described mobile switching centre, by described target BS, the result feed back to described subscriber equipment;
Renewal result, when described the result is first verification data and the second checking data are identical, at first verification data described in local update, and is fed back to described mobile switching centre by described target BS by described subscriber equipment.
5. as claimed in claim 1 or 2 from long-term evolving network fall back to circuit commutative field time Shared Secret Data update method, it is characterized in that, after described subscriber equipment is switched to described target BS, described target BS sends switching completion notice to described mobile switching centre; The more new technological process that described mobile switching centre initiates the Shared Secret Data of described subscriber equipment is updated to described target BS includes:
After described mobile switching centre receives the switching completion notice that described target BS sends, send, to described subscriber equipment, the Shared Secret Data comprising new authorization data by described target BS more newly requested, and adopt preset algorithm to be calculated obtaining first verification data described new authorization data;
Described subscriber equipment adopts described preset algorithm to be calculated obtaining the second checking data according to the described Shared Secret Data new authorization data in more newly requested, and feeds back to described mobile switching centre by described target BS;
Described first verification data and described second checking data are compared checking by described mobile switching centre, by described target BS, the result feed back to described subscriber equipment;
Renewal result, when described the result is first verification data and the second checking data are identical, at first verification data described in local update, and is fed back to described mobile switching centre by described target BS by described subscriber equipment.
6. one kind from long-term evolving network fall back to circuit commutative field time Shared Secret Data update method, it is characterised in that including:
Mobile switching centre receives interoperability node at the switching flow detecting that subscriber equipment is initiated when long-term evolving network initiates the voice call service of circuit commutative field, is switched on the target BS of circuit commutative field by described subscriber equipment;
Mobile switching centre initiates the Shared Secret Data of described subscriber equipment is updated to described target BS.
7. a communication system, it is characterised in that include interoperability node, mobile switching centre and target BS;
Described interoperability node is for detecting that subscriber equipment is when long-term evolving network initiates the voice call service of circuit commutative field, initiates switching flow to described mobile switching centre and is switched on the described target BS of circuit commutative field by described subscriber equipment;
Described mobile switching centre is for initiating the Shared Secret Data of described subscriber equipment is updated to described target BS.
8. communication system as claimed in claim 7, it is characterized in that, the voice starting message that described interoperability node sends by judging whether to receive described subscriber equipment judges that described subscriber equipment is whether in the voice call service of long-term evolving network initiation circuit commutative field.
9. communication system as claimed in claim 8, it is characterized in that, described interoperability node is additionally operable to detect that subscriber equipment is after long-term evolving network initiates the audio call of circuit commutative field after business, before described mobile switching centre initiation switching flow, send CM business request information according to described voice starting message to described mobile switching centre;
Described subscriber equipment is authenticated after being additionally operable to receive CM business request information by described mobile switching centre, records failed authentication result.
10. communication system as claimed in claim 9, it is characterised in that described target BS is additionally operable to after switching completes, sends switching completion notice to described mobile switching centre; The more new technological process that described mobile switching centre initiates the Shared Secret Data of described subscriber equipment is updated to described target BS includes:
After described mobile switching centre receives the switching completion notice that described target BS sends, it is more newly requested that record according to described failed authentication result sends, to described subscriber equipment, the Shared Secret Data comprising new authorization data by described target BS, and adopts preset algorithm to be calculated obtaining first verification data described new authorization data;
Described subscriber equipment adopts described preset algorithm to be calculated obtaining the second checking data according to the described Shared Secret Data new authorization data in more newly requested, and feeds back to described mobile switching centre by described target BS;
Described first verification data and described second checking data are compared checking by described mobile switching centre, by described target BS, the result feed back to described subscriber equipment;
Renewal result, when described the result is first verification data and the second checking data are identical, at first verification data described in local update, and is fed back to described mobile switching centre by described target BS by described subscriber equipment.
11. communication system as claimed in claim 7 or 8, it is characterised in that described target BS is additionally operable to after switching completes, send switching completion notice to described mobile switching centre; The more new technological process that described mobile switching centre initiates the Shared Secret Data of described subscriber equipment is updated to described target BS includes:
After described mobile switching centre receives the switching completion notice that described target BS sends, send, to described subscriber equipment, the Shared Secret Data comprising new authorization data by described target BS more newly requested, and adopt preset algorithm to be calculated obtaining first verification data described new authorization data;
Described subscriber equipment adopts described preset algorithm to be calculated obtaining the second checking data according to the described Shared Secret Data new authorization data in more newly requested, and feeds back to described mobile switching centre by described target BS;
Described first verification data and described second checking data are compared checking by described mobile switching centre, by described target BS, the result feed back to described subscriber equipment;
Renewal result, when described the result is first verification data and the second checking data are identical, at first verification data described in local update, and is fed back to described mobile switching centre by described target BS by described subscriber equipment.
12. a mobile switching centre, it is characterised in that include handover module and more new module:
Described subscriber equipment, for receiving interoperability node at the switching flow detecting that subscriber equipment is initiated when long-term evolving network initiates the voice call service of circuit commutative field, is switched on the target BS of circuit commutative field by described handover module;
Described more new module is for initiating the Shared Secret Data of described subscriber equipment is updated to described target BS.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660336.0A CN105682153A (en) | 2014-11-18 | 2014-11-18 | SSD (Shared Secret Data) updating method during fallback from LTE (Long Term Evolution) network to CS (Circuit Switch) domain, media switch center and communication system |
| PCT/CN2015/078375 WO2016078352A1 (en) | 2014-11-18 | 2015-05-06 | Method for updating ssd, media switch center, communication system and related storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660336.0A CN105682153A (en) | 2014-11-18 | 2014-11-18 | SSD (Shared Secret Data) updating method during fallback from LTE (Long Term Evolution) network to CS (Circuit Switch) domain, media switch center and communication system |
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| Publication Number | Publication Date |
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| CN105682153A true CN105682153A (en) | 2016-06-15 |
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| CN201410660336.0A Pending CN105682153A (en) | 2014-11-18 | 2014-11-18 | SSD (Shared Secret Data) updating method during fallback from LTE (Long Term Evolution) network to CS (Circuit Switch) domain, media switch center and communication system |
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| CN (1) | CN105682153A (en) |
| WO (1) | WO2016078352A1 (en) |
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| CN107087272A (en) * | 2017-05-19 | 2017-08-22 | 广东欧珀移动通信有限公司 | A kind of method, terminal and storage medium for connecting network |
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| CN102364976A (en) * | 2010-06-16 | 2012-02-29 | 中兴通讯(美国)公司 | Interworking circuit service fallback |
| CN102598638A (en) * | 2009-08-18 | 2012-07-18 | 高通股份有限公司 | Reliable inter-radio access technology core network tunnel |
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| CN1801706B (en) * | 2005-01-07 | 2010-04-28 | 华为技术有限公司 | Network authentication system and method for IP multimedia subsystem |
| CN103118404B (en) * | 2009-07-23 | 2015-11-25 | 华为技术有限公司 | Voice call fallback is to method, the Apparatus and system of circuit commutative field |
| CN102984770B (en) * | 2012-12-04 | 2015-04-22 | 中国联合网络通信集团有限公司 | Network switching method, mobile management entity, base station and network system |
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| CN102598638A (en) * | 2009-08-18 | 2012-07-18 | 高通股份有限公司 | Reliable inter-radio access technology core network tunnel |
| CN101835150A (en) * | 2010-02-09 | 2010-09-15 | 华为技术有限公司 | Method, device and system for updating shared enciphered data |
| CN102364976A (en) * | 2010-06-16 | 2012-02-29 | 中兴通讯(美国)公司 | Interworking circuit service fallback |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107087272A (en) * | 2017-05-19 | 2017-08-22 | 广东欧珀移动通信有限公司 | A kind of method, terminal and storage medium for connecting network |
| CN107087272B (en) * | 2017-05-19 | 2020-01-14 | Oppo广东移动通信有限公司 | Method, terminal and storage medium for connecting network |
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| WO2016078352A1 (en) | 2016-05-26 |
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