CN101227704B - System, apparatus and method for switching multi-module terminal field - Google Patents
System, apparatus and method for switching multi-module terminal field Download PDFInfo
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- CN101227704B CN101227704B CN2007100011650A CN200710001165A CN101227704B CN 101227704 B CN101227704 B CN 101227704B CN 2007100011650 A CN2007100011650 A CN 2007100011650A CN 200710001165 A CN200710001165 A CN 200710001165A CN 101227704 B CN101227704 B CN 101227704B
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- 230000000977 initiatory effect Effects 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 abstract 3
- 230000011664 signaling Effects 0.000 description 8
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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]
- H04W36/00226—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] wherein the core network technologies comprise IP multimedia system [IMS], e.g. single radio voice call continuity [SRVCC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Abstract
The invention discloses a method, a device and a system for switching multi-mode terminal area, which are used to support the switching of partial media in original conversion. The method of the invention comprises utilizing a multi-mode terminal to send switching request to a switching control entity, identifying whether the switching is the switching to the partial medium of original conversion after the switching control entity receives the switching request, when the switching which only switches partial media in the original conversion is identified, switching partial media in a second conversation. The multi-mode terminal of the invention comprises an information switching carrying unit and a sending unit. The switching control entity of the invention comprises a receiving unit, an identifying unit and a switching unit. The switching system of the multi-mode terminal area of the invention comprises a multi-mode terminal and a switching control entity. The invention supports the switch to partial media in original conversation.
Description
Technical field
The present invention relates to the communications field, particularly relate to method, Apparatus and system that a kind of multi-module terminal field switches.
Background technology
Evolve to the process of 3G network from the 2G network at wireless network, have the situation that can have 3G network and 2G network very long one period and deposit, under a kind of pair of net like this and the situation of depositing, the interoperability between two nets becomes a problem that requires study.
Network needs the registration situation of perception user at two networks, can select suitable network to continue when calling need be routed to the user like this.Network equally also needs grappling user's all-calls, can carry out assist control when making things convenient for the user to switch between two networks.
In order to address the above problem, 3GPP and 3GPP2 normal structure all propose a kind ofly to carry out grappling control based on the IMS entity, detect registration, the session status of user respectively at two networks, and according to user's registration, route and the switching controls that session status carries out the user.The embodiment of 3GPP is referring to shown in Figure 1.
Among Fig. 1, at the newly-increased one group of functional entity in IMS territory and CS territory, they are:
● a routing redirection entity (FE-C among the figure), be responsible for that circuit domain call is redirected to the IMS territory and call out grappling control.FE-C can close with the gsmSCF among the figure generally speaking and establish, and is presented as a SCP in circuit domain;
● an adaptive entity in CS territory (FE-B among the figure), responsible reception are rerouted to the circuit domain call in IMS territory and transfer it to IMS territory and call out;
● controlled entity (FE-D among the figure) is selected in territory, is responsible in the IMS territory that various strategies such as login state, call state according to the user are made a strategic decision and controlling call is routed to the selected territory of continuing;
● a territory switching controls entity (FE-A among the figure), be responsible for calling out in the grappling of IMS territory, when switching generation, carry out switching controls.
These functional entitys are collectively referred to as VCC (Voice Call Continuity, continuous voice call) operation controlling entity.
Under above-mentioned VCC framework, FE-A is anchored on as B2BUA in the path of IMS calling, and the calling that the user initiates in the CS territory also can be redirected to the IMS territory and go to carry out grappling.When user terminal carried out the territory switching, FE-A just can play the effect of switching assist control like this.
When terminal switches to the CS territory from the IMS territory, switching flow comprises the following steps: referring to shown in Figure 2
1-2, VCC UE judge to call out needs according to wireless environment and switches to the CS territory, uses the switching that makes a call of CS territory VDN number.
3, VMSC uses intelligent trigger to handle to FE-C, and the information of carrying comprises [calling number], [VDN], [calling party information].
4-5, FE-C judge according to VDN and have received the territory handoff request, preserve CS information; Distribute IMRN (PSI of FE-A) then.
7-10 calls out the FE-A that is routed to VCC user attaching IMS network by IMRN and handles, and FE-A (dialing number information loses when calling out through international office) and FE-C when needed is mutual, and finds former caller information according to IMRN information; In the recovery process of IMRN, FE-A can be known the domain information (as according to the IMRN that receives) at handoff request place.
11-20, FE-A be according to the calling subscriber identification in calling out, find grappling session and and remote subscriber heavily consult SDP information, after finishing, CS access part call setup is finished.
21-26, FE-A discharges the access Session Resources of VCC user in the IMS territory.
When terminal switches to the IMS territory from the CS territory, switching flow comprises the following steps: referring to shown in Figure 3
0-1, VCC UE judge to call out needs according to wireless environment and switches to the IMS territory, uses the switching that makes a call of IMS territory VDI number.
2, call out the FE-A processing that is routed to VCC user attaching IMS network by PSI.
3-20, FE-A determines the domain information at handoff request place, territory according to the header field information among the INVITE, and determines whether to accept this territory handoff request.FE-A determines that according to VDI information the user initiates the territory handoff request, and according to caller information, find grappling session and and remote subscriber heavily consult SDP information, after finishing, IMS access part call setup is finished.
21-29, FE-A discharges the access part call resources of VCC user in the CS territory.
In above handover scheme, FE-A is to switch whole session, and former session access leg is discharged when receiving handoff request.If but because certain reason, be not enough to support all medium types of former session as the switching target network capabilities, perhaps the user does not want all media contents are all switched to objective network, then might only carry the part of media type in the handoff request.When FE-A receives this handoff request, can't be according to the part of media type of carrying in this handoff request, the corresponding switching of finishing at part of media.
Summary of the invention
Method, Apparatus and system that the embodiment of the invention provides a kind of multi-module terminal field to switch are to support the switching to part of media in the former session.
The method that the multi-module terminal field of the embodiment of the invention switches comprises the following steps: that multimode terminal sends handoff request to the switching controls entity from second session; After the switching controls entity is received handoff request, discern whether this switching is that the part of media in the former session is switched; Switch when only the part of media in the former session being switched when identifying this, this part of media is switched in second session.
The multimode terminal of the embodiment of the invention comprises: handover information carries the unit, is used for the part indication message that part of media switches in the handoff request of initiating is carried former session; Transmitting element, the handoff request that is used for from second session handover information carried after the cell processing is sent.
The switching controls entity of the embodiment of the invention comprises: receiving element is used to receive the handoff request that multimode terminal is sent from second session; Recognition unit is used for discerning whether this switching is that former session part of media is switched; Switch unit is used for the information according to recognition unit output, and part of media in the described former session is switched in second session.
The system that the multi-module terminal field of the embodiment of the invention switches comprises: multimode terminal is used for sending handoff request to the switching controls entity from second session; The switching controls entity is used for after receiving handoff request, discerns whether this switching is that the part of media in the former session is switched; Switch when only the part of media in the former session being switched when identifying this, this part of media is switched in second session.
After the switching controls entity is received handoff request in embodiments of the present invention, discern whether this switching is that the part of media in the former session is switched; Switch when only the part of media in the former session being switched when identifying this, again this part of media is switched in second session.
Because have in the embodiment of the invention whether this switching of identification is the operation that the part of media in the former session is switched, and then the part of media in the former session of corresponding switching, so the embodiment of the invention can support the switching to part of media in the former session.
Description of drawings
Fig. 1 is the two net interoperability scheme schematic diagrames of existing 3GPP;
Fig. 2 is the existing hand off signaling flow chart that switches to the CS territory when terminal from the IMS territory;
Fig. 3 is the existing hand off signaling flow chart that switches to the IMS territory when terminal from the CS territory;
Fig. 4 is the inventive method embodiment flow chart of steps;
Fig. 5 is the signaling process figure of the inventive method embodiment one;
Fig. 6 is the signaling process figure of the inventive method embodiment two;
Fig. 7 is the signaling process figure of the inventive method embodiment three;
Fig. 8 is the signaling process figure of the inventive method embodiment four;
Fig. 9 is the structural representation of multimode terminal embodiment of the present invention;
Figure 10 is the structural representation of switching controls physical embodiment of the present invention.
Embodiment
In order to support the switching to part of media in the former session, the method that the embodiment of the invention provides a kind of multi-module terminal field to switch referring to shown in Figure 4, comprises following key step:
S1, multimode terminal send handoff request to the switching controls entity.
Multimode terminal can be initiated handoff request from former session, perhaps initiates handoff request from second session.There are two kinds of situations in the content that described handoff request comprises:
The part indication message that part of media switched during situation one, multimode terminal carried former session in the handoff request of initiating.Wherein, can be with the corresponding medium type of specific parameter, again with specific parameter as described part indication message (an explicit sign switching part medium), need the part of media that switches with indication; Also can in SDP, only carry the part of media type as described part indication message (sign of an implicit expression switching part medium).
The part indication message that part of media switched during situation two, multimode terminal did not carry former session in the handoff request of initiating.
Whether S2, this switching of switching controls Entity recognition are that the part of media in the former session is switched, if then change step S3 over to; Otherwise switch whole former session according to prior art.
After situation one, switching controls entity among the corresponding step S1 received the handoff request that multimode terminal sends, when identifying this handoff request and carrying the part indication message, part of media in the described former session is switched in second session according to this part indication message.Further, if with specific parameter as described part indication message, then the switching controls entity is determined switchable part of media according to described specific parameter and with the corresponding relation of medium type, and switches; If only carry the part of media type as described part indication message in SDP, then the switching controls entity directly switches corresponding part of media with the part of media type of carrying among the SDP.
Situation two, switching controls entity among the corresponding step S1 determined switchable medium according to predetermined strategy, and switchable medium in the former session switched in second session after receiving the handoff request that multimode terminal sends.Wherein, described predetermined strategy is obtained the target access network ability information for the switching controls entity and is compared with medium type in the former session, whether can only the part of media in the former session be switched to discern this switching, when identifying this switching and can only switch, determine switchable medium with the target access network ability information to the part of media in the former session; Perhaps be the switching controls entity according to pre-configured, such as the strategy of operator or user's setting etc., determine switchable medium.
Certainly also can receive whether the handoff request that multimode terminal is sent carries the part indication message that part of media in the former session is switched, and determine switchable medium according to predetermined strategy by force regardless of the switching controls entity.
S3, part of media is switched in second session.
If multimode terminal is initiated handoff request from former session, when then the switching controls entity confirms that described handoff request is only switched the part of media in the former session, send the session updates indication to the session opposite end, indicate described session opposite end that the part of media that is switched is connected to second session.
If multimode terminal is initiated handoff request from second session, when then the switching controls entity confirms that described handoff request is only switched the part of media in the former session, send the session updates indication to the session opposite end, indicate described session opposite end that the part of media that is switched is connected to second session.
In sum, for further optimization, also can be in handoff procedure or switch finish after, wait according to carrier policy, user preference, network condition by the switching controls entity remainder medium are discharged or keep.If need keep the remainder medium, then the switching controls entity is removed the part of media that is switched (if multimode terminal is initiated handoff request and need be kept the remainder medium from former session access leg from former session, after then the switching controls entity treats that the medium connection is finished in described session opposite end, send switching response message to described multimode terminal, from former session access leg, remove the part of media that is switched to notify this multimode terminal; If multimode terminal is initiated handoff request and need be kept the remainder medium from the second session access leg, after then the switching controls entity treats that the medium connection is finished in described session opposite end, send the session updates indication to former session, so that the described part of media that is switched is removed from former session access leg), and it is keep remainder medium in the former session, and session opposite end, former session access leg is related with the second session access leg; If need release remainder medium, then the switching controls entity is removed remainder medium in the former session in the session updates indication of initiating to the session opposite end, and sends session release request to described multimode terminal, to discharge former session access leg; The perhaps indication of sending according to described multimode terminal discharges former session access leg.
If the remainder medium are kept in the decision-making of switching controls entity, when then the switching controls entity is received the switchback request that carries the switchback indication information, corresponding medium are switched back on the former session access leg.Described switchback request can be sent from the access leg of former session, perhaps sends from the access leg of described second session.If send, then need to carry indication in the switchback request which medium of which session are switched back on the former session access leg from former session access leg; A switchback indication also can be only carried in the switchback request, writes down which medium that finds which session of needs switchback by the switching controls entity according to original switching of preserving.If send, then need to carry indication in the switchback request which session which medium on this session leg are switched back in from the second session access leg; A switchback indication also can be only carried in the switchback request, is write down according to original switching of preserving by the switching controls entity and finds needs which session which medium is switched in.By above-mentioned switchback scheme, user or switching controls entity can switch back to the part of media that is switched in the former session according to user's hobby, current network conditions etc., thereby further satisfy user's hobby and optimize Internet resources.
If the remainder medium are kept in the decision-making of switching controls entity, then the switching controls entity can be judged the unusual condition of session access leg voluntarily, and perhaps the switching controls entity is judged the unusual condition of corresponding session access leg according to the unusual release request of receiving from other entities.If arbitrary session access leg abnormal end, then the switching controls entity discharges the part of media of this session access leg correspondence.Wherein the switching controls entity is by one of following manner, the corresponding part of media that discharges on the session access leg: one of, the switching controls entity directly sends the session updates indication to the session opposite end, the part of media of described session access leg correspondence is removed from session, and discharged described session access leg; Two, the switching controls entity starts timer, and to be switched indication such as in timing length, if receive the switching indication from another session access leg, part of media on the session access leg that then will be to be discharged switches on the session access leg of sending described switching indication and keeps, and discharges described session access leg again; If do not receive and switch indication, then send the session updates indication to the session opposite end, the part of media of session access leg correspondence to be discharged is removed from session.By above-mentioned access leg abnormity processing scheme, can be not in office during a session access leg abnormal end, be discharged into the whole medium in the whole session of session opposite end, but remove part of media corresponding on the abortive session access leg, so further optimized Session Resources, demand more gears to actual circumstances.
Below specifically describe by 4 method embodiment.
Method embodiment one, the part of media in the session switched the session of formation another one: multimode terminal is set up a Multimedia session at Access Network 1 time and opposite end, comprises medium type 1 and medium type 2 in the session.Referring to shown in Figure 5, comprise the following steps:
1, terminal is initiated handoff request at another one Access Network 2, only carries medium type 1 in the request.
2, after the switching controls entity was received handoff request, the part of media type according to having only former session in the request determined this terminal switching part Media Stream.(terminal also can be carried the wish that a parameter is come explicit sign switching part Media Stream in request, then the switching controls entity is judged according to this parameter and got final product.)
3, the switching controls entity sends the session updates indication to the session opposite end, and indication is connected to multimode terminal under the Access Network 2 with Media Stream 1.
The session updates response that finishes is returned in 4-5, session opposite end.
6, the switching controls entity sends the session updates indication to former session access leg, and indication is removed Media Stream 1 from session.
7, former session access leg returns the session updates response that finishes.
Method embodiment two, one of them session access leg discharge unusually, referring to shown in Figure 6, comprise the following steps:
1, when multimode terminal when the switching part medium have flow to the another one session, one of them session access leg takes place as dropout unusually for a certain reason, and the P-CSCF on the signaling paths detects this situation.
2, P-CSCF sends the session release message respectively to multimode terminal and switching controls entity.
3, the switching controls entity can start a timer, the switching indication that wait may occur.The switching controls entity can not start timer yet and directly carries out next step.
4, still do not receive the switching indication behind timer expiry, the switching controls entity sends session to P-CSCF and discharges response.
5, the switching controls entity is removed to the Media Stream that the request of session opposite end transmission session updates will discharge on the session access leg.
6, the session updates response that finishes is returned in the session opposite end.
Method embodiment three, former session access leg send indication and will cut out medium and switch back to former session, referring to shown in Figure 7, comprise the following steps:
1, when multimode terminal when the switching part medium have flow to the another one session, former session access leg sends the session updates request to the switching controls entity, the Media Stream that the indication recovery originally cut out in the request, indicating means is for (perhaps using expansion or newly-increased parameter to come explicit identification need switch which Media Stream of which session in addition in sip message the capable SDP information of recovering again of part of media m that cuts out that has been changed to 0 among the SDP when switching, as use the replace header field to carry target session ID, use SDP to identify target medium stream ID).
2, after the switching controls entity is received, judge it is that needs carry out the switchback operation according to the information of carrying in the switchback request, then to session opposite end transmission session updates request requirement the Media Stream that cuts out being altered course again is connected on the former session access leg.
3, the session opposite end sends the session updates response that finishes.
4, the switching controls entity sends the session updates response that finishes to former session access leg.
5, do not had Media Stream on the former switching session leg this moment, the switching controls entity sends the session release message to it.
6, switching session leg returns session and discharges the response that finishes.
Method embodiment four, switch session leg and send indication and will cut out medium and switch back to former session,, comprise the following steps: referring to shown in Figure 8
1, when multimode terminal the switching part medium flow to the another one session, cut three when changing controlled entity and forming the pattern of 3PCC, former switching session leg sends session to the switching controls entity and discharges request, indication switches back to the Media Stream of this session control on the former session access leg in the request, can in request, use existing or newly-increased or expand a SIP header field to identify this operation, for example in the require of session release signaling header field, identify the switchback operation.
2, after the switching controls entity was received, judgement was to carry out the switchback operation, then sends the session updates request to former session access leg, and the part of media that indication recovers originally to cut out again flows.
3, the switching controls entity alters course the Media Stream that cuts out again to session opposite end transmission session updates request requirement and is connected on the former session access leg.
4, the session opposite end sends the session updates response that finishes.
5, former session access leg sends the session updates response that finishes.
6, do not had Media Stream on the former switching session leg this moment, the switching controls entity sends session to it and discharges the response that finishes with its release.
The embodiment of the invention provides a kind of multimode terminal, and referring to shown in Figure 9, it comprises that handover information carries the unit, and carries the transmitting element that the unit links to each other with handover information; Further, comprise that also the switchback information that links to each other with transmitting element carries the unit.
Described handover information carries the unit, is used for the part indication message that part of media switches in the handoff request of initiating is carried former session.Wherein, in described handoff request, carry specific parameter, perhaps in SDP, only carry the part of media type as described part indication message as described part indication message.
Described transmitting element is used for the handoff request that handover information carries after the cell processing is sent.Also be used for the switchback request that switchback information is carried after the cell processing is sent.
Described switchback information is carried the unit, is used for carrying the switchback indication information in the switchback request of initiating with the medium switchback.
The embodiment of the invention also provides a kind of switching controls entity, and referring to shown in Figure 10, it comprises receiving element, recognition unit and the switch unit that links to each other successively; Further comprise the first recognin unit in the described recognition unit, and the second recognin unit that links to each other with the first recognin unit; Further, also comprise decision package, the switchback unit that links to each other with receiving element with decision package, and the unusual releasing unit that links to each other with decision package.
Described receiving element is used to receive the handoff request that multimode terminal is sent.Also be used to receive the switchback request that carries the switchback indication information.
Described recognition unit is used for discerning whether this switching is that former session part of media is switched.The first recognin unit wherein is used for discerning handoff request and whether carries the part indication message, if then export this part indication message to switch unit, otherwise continued to handle by the second recognin unit; The second recognin unit wherein is used for determining switchable medium according to predetermined strategy, and switchable media information is exported to switch unit.
Described switch unit is used for the information according to recognition unit output, and part of media in the described former session is switched in second session.
Described decision package is used for decision-making the remainder medium is discharged or keep.
Described switchback unit is used for when receiving element is received the switchback request that carries the switchback indication information, corresponding medium being switched back on the former session access leg after the remainder medium are kept in the decision package decision-making.
Described unusual releasing unit is used for after the remainder medium are kept in decision package decision-making, when knowing arbitrary session access leg abnormal end, discharges the part of media of this session access leg correspondence.
The system that the embodiment of the invention also provides a kind of multi-module terminal field to switch, it comprises interconnective multimode terminal and switching controls entity (being the switching controls entity of the embodiment of the invention).
Described multimode terminal is used for sending handoff request to the switching controls entity.If this multimode terminal initiate to former session in carry the part indication message in the handoff request switched of part of media, then be the described multimode terminal of the embodiment of the invention, otherwise for having multimode terminal now.
Described switching controls entity is used for after receiving handoff request, discerns whether this switching is that the part of media in the former session is switched; Switch when only the part of media in the former session being switched when identifying this, this part of media is switched in second session.
The present invention also can be suitable equally in the switching between the inner different Access Networks in IMS territory except being used in the switching between CS territory and the IMS 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 (32)
1. the method that multi-module terminal field switches is characterized in that, comprises the following steps:
Multimode terminal sends handoff request to the switching controls entity from second session;
After the switching controls entity is received handoff request, discern whether this switching is that the part of media in the former session is switched; Switch when only the part of media in the former session being switched when identifying this, this part of media is switched in second session.
2. the method for claim 1 is characterized in that, the part indication message that part of media switched during multimode terminal carried former session in the handoff request of initiating; And
After the switching controls entity is received the handoff request that multimode terminal sends, when identifying this handoff request and carrying the part indication message, part of media in the described former session is switched in second session according to this part indication message.
3. method as claimed in claim 2 is characterized in that, as described part indication message, the switching controls entity determines switchable part of media according to described specific parameter, and switches with specific parameter; Perhaps
Only carry the part of media type as described part indication message in Session Description Protocol SDP, the switching controls entity directly switches corresponding part of media with the part of media type of carrying among the Session Description Protocol SDP.
4. the method for claim 1 is characterized in that, the switching controls entity is determined switchable medium according to predetermined strategy, and switchable medium in the former session are switched in second session after receiving the handoff request that multimode terminal sends.
5. method as claimed in claim 4 is characterized in that, it is one of following that described predetermined strategy comprises:
Whether-switching controls entity obtains the target access network ability information and compares with medium type in the former session, can only the part of media in the former session be switched to discern this switching; When identifying this switching and can only switch, determine switchable medium with the target access network ability information to the part of media in the former session;
-switching controls entity is determined switchable medium according to pre-configured.
6. as each described method of claim 1 to 5, it is characterized in that, when the switching controls entity confirms that described handoff request is only switched the part of media in the former session, send the session updates indication to the session opposite end, indicate described session opposite end that the part of media that is switched is connected to second session.
7. the method for claim 1, it is characterized in that when described switching controls entity decision-making discharged the remainder medium, the switching controls entity was in the session updates indication of initiating to the session opposite end, remainder medium in the former session are removed, and discharged former session access leg.
8. the method for claim 1, it is characterized in that, when the remainder medium are kept in described switching controls entity decision-making, the switching controls entity is removed the part of media that is switched from former session, and it is keep remainder medium in the former session, and session opposite end, former session access leg is related with the second session access leg.
9. method as claimed in claim 8, it is characterized in that, when multimode terminal is initiated handoff request from former session access leg, after the switching controls entity treats that the medium connection is finished in described session opposite end, send switching response message to described multimode terminal, from former session access leg, remove the part of media that is switched to notify this multimode terminal.
10. method as claimed in claim 8, it is characterized in that, when multimode terminal is initiated handoff request from the second session access leg, after the switching controls entity treats that the medium connection is finished in described session opposite end, send the session updates indication to former session access leg, so that the described part of media that is switched is removed from former session access leg.
11., it is characterized in that as each described method of claim 8 to 10, keep after the remainder medium, when the switching controls entity is received the switchback request that carries the switchback indication information, corresponding medium are switched back on the former session access leg.
12. method as claimed in claim 11 is characterized in that, described switchback request is sent from the access leg of former session, perhaps sends from the access leg of described second session.
13. method as claimed in claim 11, it is characterized in that, to need the medium of switchback to switch back on the former session access leg in the second session access leg if described switchback indication information is indicated, then the switching controls entity switches back to corresponding medium on the former session access leg according to the switchback indication information; Perhaps
After the switching controls Entity recognition switchback indication, the switching record according to preserving switches back to corresponding medium on the former session access leg.
14., it is characterized in that as each described method of claim 8 to 10, keep after the remainder medium, if arbitrary session access leg abnormal end, then the switching controls entity discharges the part of media of this session access leg correspondence.
15. method as claimed in claim 14 is characterized in that, the switching controls entity is judged the unusual condition of session access leg voluntarily, perhaps judges the unusual condition of corresponding session access leg according to the unusual release request of receiving from other entities.
16. method as claimed in claim 14 is characterized in that, the switching controls entity is by one of following manner, and correspondence discharges the part of media on the session access leg:
One of, the switching controls entity directly sends the session updates indication to the session opposite end, the part of media of described session access leg correspondence is removed from session, and is discharged described session access leg;
Two, the switching controls entity starts timer, and to be switched indication such as in timing length, if receive the switching indication from another session access leg, part of media on the session access leg that then will be to be discharged switches on the session access leg of sending described switching indication and keeps, and discharges described session access leg again; If do not receive and switch indication, then send the session updates indication to the session opposite end, the part of media of session access leg correspondence to be discharged is removed from session.
17. a multimode terminal is characterized in that, comprising:
Handover information carries the unit, is used for the part indication message that part of media switches in the handoff request of initiating is carried former session;
Transmitting element, the handoff request that is used for from second session handover information carried after the cell processing is sent.
18. multimode terminal as claimed in claim 17, it is characterized in that, described handover information carries the unit and carries specific parameter as described part indication message in described handoff request, perhaps only carries the part of media type as described part indication message in Session Description Protocol SDP.
19., it is characterized in that described multimode terminal also comprises as claim 17 or 18 described multimode terminals:
Switchback information is carried the unit, is used for carrying the switchback indication information in the switchback request of initiating with the medium switchback; And
Described transmitting element also is used for the switchback request that switchback information is carried after the cell processing is sent.
20. a switching controls entity is characterized in that, comprising:
Receiving element is used to receive the handoff request that multimode terminal is sent from second session;
Recognition unit is used for discerning whether this switching is that former session part of media is switched;
Switch unit is used for the information according to recognition unit output, and part of media in the described former session is switched in second session.
21. switching controls entity as claimed in claim 20 is characterized in that, further comprises in the described recognition unit: the first recognin unit and the second recognin unit,
The described first recognin unit is used for discerning handoff request and whether carries the part indication message, if then export this part indication message to switch unit; Otherwise continue to handle by the second recognin unit;
The described second recognin unit is used for determining switchable medium according to predetermined strategy, and switchable media information is exported to switch unit.
22. switching controls entity as claimed in claim 20 is characterized in that, described switching controls entity also comprises: decision package is used for decision-making the remainder medium is discharged or keep.
23. switching controls entity as claimed in claim 22 is characterized in that, described receiving element also is used to receive the switchback request that carries the switchback indication information; And
Described switching controls entity also comprises: the switchback unit is used for when receiving element is received the switchback request that carries the switchback indication information, corresponding medium being switched back on the former session access leg after the remainder medium are kept in the decision package decision-making.
24. switching controls entity as claimed in claim 22 is characterized in that, described switching controls entity also comprises:
Unusual releasing unit is used for after the remainder medium are kept in the decision package decision-making, when knowing arbitrary session access leg abnormal end, discharges the part of media of this session access leg correspondence.
25. the system that multi-module terminal field switches is characterized in that, comprising:
Multimode terminal is used for sending handoff request to the switching controls entity from second session;
The switching controls entity is used for after receiving handoff request, discerns whether this switching is that the part of media in the former session is switched; Switch when only the part of media in the former session being switched when identifying this, this part of media is switched in second session.
26. system as claimed in claim 25 is characterized in that, comprises in the described multimode terminal:
Handover information carries the unit, is used for carrying the part indication message in the handoff request of initiating that former session part of media is switched;
Transmitting element is used for the handoff request that handover information carries after the cell processing is sent.
27. system as claimed in claim 26 is characterized in that, also comprises in the described multimode terminal:
Switchback information is carried the unit, is used for carrying the switchback indication information in the switchback request of initiating with the medium switchback; And
Described transmitting element also is used for the switchback request that switchback information is carried after the cell processing is sent.
28. system as claimed in claim 25 is characterized in that, comprises in the described switching controls entity:
Receiving element is used to receive the handoff request that multimode terminal is sent;
Recognition unit is used for discerning whether this switching is that former session part of media is switched;
Switch unit is used for the information according to recognition unit output, and part of media in the described former session is switched in second session.
29. system as claimed in claim 28 is characterized in that, further comprises in the described recognition unit: the first recognin unit and the second recognin unit,
The described first recognin unit is used for discerning handoff request and whether carries the part indication message, if then export this part indication message to switch unit; Otherwise continue to handle by the second recognin unit;
The described second recognin unit is used for determining switchable medium according to predetermined strategy, and switchable media information is exported to switch unit.
30. system as claimed in claim 28 is characterized in that, also comprises in the described switching controls entity: decision package is used for decision-making the remainder medium is discharged or keep.
31. system as claimed in claim 30 is characterized in that, described receiving element also is used to receive the switchback request that carries the switchback indication information; And
Also comprise in the described switching controls entity: the switchback unit is used for when receiving element is received the switchback request that carries the switchback indication information, corresponding medium being switched back on the former session access leg after the remainder medium are kept in the decision package decision-making.
32. system as claimed in claim 30 is characterized in that, also comprises in the described switching controls entity:
Unusual releasing unit is used for after the remainder medium are kept in the decision package decision-making, when knowing arbitrary session access leg abnormal end, discharges the part of media of this session access leg correspondence.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100011650A CN101227704B (en) | 2007-01-19 | 2007-01-19 | System, apparatus and method for switching multi-module terminal field |
| PCT/CN2008/000061 WO2008089648A1 (en) | 2007-01-19 | 2008-01-08 | Domain switching method for a multi-mode terminal, apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100011650A CN101227704B (en) | 2007-01-19 | 2007-01-19 | System, apparatus and method for switching multi-module terminal field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101227704A CN101227704A (en) | 2008-07-23 |
| CN101227704B true CN101227704B (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100011650A Expired - Fee Related CN101227704B (en) | 2007-01-19 | 2007-01-19 | System, apparatus and method for switching multi-module terminal field |
Country Status (2)
| Country | Link |
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| CN (1) | CN101227704B (en) |
| WO (1) | WO2008089648A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997850B (en) * | 2009-08-12 | 2014-04-09 | 中兴通讯股份有限公司 | Call management method and device for IP (Internet Protocol) multimedia subsystem |
| CN102695234A (en) * | 2011-03-25 | 2012-09-26 | 中兴通讯股份有限公司 | Service bearing transfer method and apparatus thereof |
| CN103188729A (en) * | 2011-12-31 | 2013-07-03 | 中兴通讯股份有限公司 | Method and device for service balance |
| CN109194687B (en) * | 2018-10-17 | 2021-07-27 | Oppo广东移动通信有限公司 | Method for managing IMS registration, electronic device and computer readable storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1467978A (en) * | 2002-06-03 | 2004-01-14 | Telecommunication system with packet-switched-multimedia-session-to-circuit-switched-call transferral | |
| EP1182900B1 (en) * | 2000-08-07 | 2004-04-28 | Lucent Technologies Inc. | Handover of wireless calls between systems supporting circuit and packet call models |
| CN1630411A (en) * | 2003-12-15 | 2005-06-22 | 国际商业机器公司 | Voice-over IP mobile roaming using SIP refer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7983244B2 (en) * | 2003-12-31 | 2011-07-19 | Nokia Corporation | Interworking between domains of a communication network operated based on different switching principles |
| CN1791267A (en) * | 2004-12-17 | 2006-06-21 | 华为技术有限公司 | Conversation switching method and system based on SIP protocol |
-
2007
- 2007-01-19 CN CN2007100011650A patent/CN101227704B/en not_active Expired - Fee Related
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2008
- 2008-01-08 WO PCT/CN2008/000061 patent/WO2008089648A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1182900B1 (en) * | 2000-08-07 | 2004-04-28 | Lucent Technologies Inc. | Handover of wireless calls between systems supporting circuit and packet call models |
| CN1467978A (en) * | 2002-06-03 | 2004-01-14 | Telecommunication system with packet-switched-multimedia-session-to-circuit-switched-call transferral | |
| CN1630411A (en) * | 2003-12-15 | 2005-06-22 | 国际商业机器公司 | Voice-over IP mobile roaming using SIP refer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101227704A (en) | 2008-07-23 |
| WO2008089648A1 (en) | 2008-07-31 |
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