CN101657024B - Treatment method and treatment device of ISR mechanism - Google Patents
Treatment method and treatment device of ISR mechanism Download PDFInfo
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- CN101657024B CN101657024B CN2008101475430A CN200810147543A CN101657024B CN 101657024 B CN101657024 B CN 101657024B CN 2008101475430 A CN2008101475430 A CN 2008101475430A CN 200810147543 A CN200810147543 A CN 200810147543A CN 101657024 B CN101657024 B CN 101657024B
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Abstract
The invention discloses a treatment method of an ISR mechanism, can ensure the continuity of a CS service under conditions of activation and inactivation of the ISR mechanism and relates to the field of the return treatment of a CS service to a traditional network. The treatment method of the ISR mechanism comprises that: an SGSN acquires SGs interface information; and SGSN determines whether to activate the ISR mechanism between the SGSN and an MME or not according to the SGs interface information to ensure the SGs association or Gs association established by a user terminal. The invention also discloses an SGSN device, which comprises an SGs interface information acquisition unit used for the SGSN to acquire the SGs interface information and an ISR mechanism selection unit used for the SGSN to determine whether to activate the ISR mechanism between the MME and the SGSN according to the SGs. The method is suitable to be used in the field of return treatment of the CS service to the traditional network.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to the professional passback system of CS network processes field.
Background technology
GPRS/UMTS (General Packet Radio Service GPRS, Universal Mobile Telecommunications System universal mobile telecommunications system) is a kind of mobile communications network of 3GPP tissue definition, comprise Radio Access Network (Radio Access Network, RAN) and core network (Core Network, CN) two parts.CN from the circuit commutative field that is divided into main processed voice business in logic (Circuit Switched Domain, CS) and the main packet-switched domain of handling Packet Service (Packet Switched Domain, PS).As shown in Figure 1, the signaling plane controlled entity in CS territory is a MSC/VLR (Mobility Management Entity mobile management entity, Visitor Location Register VLR Visitor Location Register), the signaling plane controlled entity in PS territory is SGSN (Serving GPRS Support Node, Serving GPRS Support Node), SGSN can link to each other by Gs interface with MSC/VLR.SGSN is connected with BSC by the A interface, is connected with RNC by the Iu interface, is the data service service of GPRS/UMTS.
3GPP will have formulated Long Term Evolution plan (LTE in the end of the year 2004, Long Term Evolution), at the given a definition framework of new mobile communications network of the guidance of this evolution plan, as shown in Figure 2, this framework and present GPRS/UMTS are more flat, and only kept packet domain, therefore can be called the packet network (EPS, evolved packet system) of evolution.Because a lot of professional all the operating in the circuit domain of GPRS/UMTS of operator in order to reuse existing C S business in the EPS network, have therefore proposed to be connected to by the EPS network method in GPRS/UMTS core net CS territory.As shown in Figure 3, the MME in the EPS network (Mobility Management Entity mobile management entity) is connected on the MSC in GPRS/UMTS core net CS territory by a SGs interface.Under this framework, when the UE preparation initiation CS beginning exhaled (MO, Mobile Originating) professional, UE need forward the GPRS/UMTS network earlier to, selects the sub-district of a 2G/3G to be stationed, and then carries out the MO business.When receiving, MSC exhales (MT an end, when Mobile Terminated) professional, MSC sends beep-page message by the SGs interface to MME, MME carries out paging by the EPS network to UE, after UE receives this beep-page message, need forward the GPRS/UMTS network earlier to, select the sub-district of a 2G/3G to be stationed, and then finish the subsequent treatment of this MT business.Therefore, this framework and processing method can be called " CS fallback " (the CS business is returned legacy network and handled).
A demand of evolvement network is to realize ISR (Idle mode signalling reduction, saving signaling under the idle pulley or limitation signaling) function, it mainly is to reduce idle pulley UE down in the mobile management flow process between the different access networks (as reducing the Inter 3GPP Access System Mobility in Idle State processing between GERAN/UTRAN and the EUTRAN).The solution of the ISR mechanism between the 3GPP access network is two login mechanisms at present, be that UE registers at two different access networks, UE under the idle pulley will not trigger Inter 3GPP Access System Mobility flow process when mobile between these two access networks like this, as inter-system RAU/LAU flow process.
In the LTE network, when combined registering of UE initiation or associated update flow process, if MME supports the SGs interface, MME can be saved in the SGs association of MSC for UE in described flow process, this moment, the state of MME record was SGs-ASSOCIATED, and the state of MSC/VLR record also is SGs-ASSOCIATED.MME and MSC/VLR also need to preserve mutually the address simultaneously.In the Access Network GERAN/UTRAN of GPRS/UMTS network, when combined registering of UE initiation or associated update flow process, if SGSN supports Gs interface, SGSN can be saved in the Gs association of MSC for UE in described flow process.This moment, the state of SGSN record was Gs-ASSOCIATED, and the state of MSC/VLR record also is Gs-ASSOCIATED.SGSN and MSC/VLR also need to preserve mutually the address simultaneously.The access network elements of GERAN/UTRAN network possesses the different interface of two covers, promptly can insert packet domain again in the place in circuit territory.
(TS 23.272 in the existing 3GPP agreement, TS 29.018) describe, when UE carries out an independent LAU process (user upgrades in position area change or periodic position in circuit domain) but not associated update (circuit domain and packet domain co-location are upgraded), SGs association or the Gs association for the UE maintenance will be discharged by MSC before the MSC so.CS Fallback only relates to the UE that resides in the LTE network, and prerequisite is that the state of MME record is SGs-ASSOCIATED.As the business arrival MSC of circuit domain, MSC gives MME by SGs interface pass-along message, and MME is at the packet domain calling user.Because the access network elements of LTE network can't the place in circuit territory, the user receives the paging of LTE network, knows it is circuit domain business, then can only switch in the GERAN/UTRAN network, by their access network elements place in circuit territory, the business of circuit domain is finished in response.
State the CS business in realization and return in the process of the processing method of ISR under the legacy network processing scene, the inventor finds that there are the following problems at least in the prior art:
Because MSC can only keep simultaneously in SGs interface or the Gs interface one: UE is between GERAN/UTRAN network and LTE network when mobile, carry out independent RAU (position of packet domain is upgraded) or LAU (position of circuit domain is upgraded) process, the SGs or the Gs association that keep for UE before the MSC are released.MME can't perception MSC the state of record transfer SGs-NULL (the SGs association of UE is released) to, also can't whether SGSN be supported to set up the Gs association for UE perception.And after having started ISR mechanism, the characteristic of ISR makes the follow-up co-location that can not trigger upgrade (creating the SGs association for UE again by this flow process).Thereby cause returning under the scene of legacy network processing in the CS business, ISR causes the interruption of CS territory business after activating, that is: UE can't paging receiving message.Network side also can't receive the page response of UE.
Summary of the invention
Embodiments of the invention provide a kind of processing method and device of ISR mechanism, are activating the continuity that can both guarantee the CS business under the ISR scene machine-processed and not activation mechanism.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The processing method of the saving signaling mechanism under a kind of idle pulley, described method comprises:
Serving GPRS Support Node SGSN obtains the SGs interface message;
SGSN selects whether to activate idle pulley saving signaling mechanism down between SGSN and the mobile management entity MME according to described SGs interface message, thereby remains the SGs association or the Gs association of user terminal foundation;
Wherein, described SGSN selects whether to activate idle pulley saving signaling mechanism down between SGSN and the MME according to described SGs interface message, thereby comprises for user terminal maintenance SGs association or Gs association:
If the SGs interface message is MME to be set up SGs association and SGSN for user terminal and can be user terminal and set up the Gs association, SGSN is according to the processing of the mechanism of the saving signaling normal activation idle pulley under;
If the SGs interface message is that MME sets up the SGs association for user terminal and SGSN can not set up the Gs association for user terminal, SGSN does not activate the saving signaling mechanism under the idle pulley;
If the SGs interface message is that MME sets up the SGs association for user terminal, SGSN does not activate the saving signaling mechanism under the idle pulley.
The present invention also provides the processing method of the saving signaling mechanism under a kind of idle pulley, and described method comprises:
Mobile management entity MME is obtained Gs interface information;
Whether MME activates saving signaling mechanism under the idle pulley between MME and the Serving GPRS Support Node SGSN according to described Gs interface Information Selection, thereby remains SGs association or the Gs association that user terminal is set up;
Wherein, whether described MME activates saving signaling mechanism under the idle pulley between MME and the SGSN according to described Gs interface Information Selection, comprises thereby remain SGs association or the Gs association that user terminal sets up:
If Gs interface information is SGSN be can be user terminal to set up the packet network that Gs association and MME carry out in evolution be that user terminal is set up the SGs association, MME is according to the processing of the mechanism of the saving signaling normal activation idle pulley under;
Can not to set up the packet network that Gs association and MME carry out in evolution for user terminal be that user terminal is set up the SGs association if Gs interface information is SGSN, and MME does not activate the saving signaling mechanism under the idle pulley.
The present invention also provides a kind of SGSN device, and described SGSN device comprises:
SGs interface message acquiring unit is used for Serving GPRS Support Node SGSN and obtains the SGs interface message;
Saving signaling mechanism selected cell under the idle pulley, be used for SGSN and select whether to activate idle pulley saving signaling mechanism down between SGSN and the mobile management entity MME, thereby remain the SGs association or the Gs association of user terminal foundation according to described SGs interface message;
Wherein, described SGSN selects whether to activate idle pulley saving signaling mechanism down between SGSN and the MME according to described SGs interface message, thereby the SGs association or the Gs association that remain user terminal foundation comprise:
If the SGs interface message is MME to be set up SGs association and SGSN for user terminal and can be user terminal and set up the Gs association, SGSN is according to the processing of the mechanism of the saving signaling normal activation idle pulley under;
If the SGs interface message is that MME sets up the SGs association for user terminal and SGSN can not set up the Gs association for user terminal, SGSN does not activate the saving signaling mechanism under the idle pulley;
If the SGs interface message is that MME sets up the SGs association for user terminal, SGSN does not activate the saving signaling mechanism under the idle pulley.
The present invention also provides a kind of MME device, and described MME device comprises:
The Gs interface information acquisition unit is used for mobile management entity MME and obtains Gs interface information;
Saving signaling mechanism selected cell under the idle pulley, be used for MME and whether activate saving signaling mechanism under the idle pulley between Serving GPRS Support Node SGSN and the MME, thereby remain SGs association or the Gs association that user terminal is set up according to described Gs interface Information Selection;
Wherein, whether described MME activates saving signaling mechanism under the idle pulley between SGSN and the MME according to described Gs interface Information Selection, comprises thereby remain SGs association or the Gs association that user terminal sets up:
If Gs interface information is SGSN be can be user terminal to set up the packet network that Gs association and MME carry out in evolution be that user terminal is set up the SGs association, MME is according to the processing of the mechanism of the saving signaling normal activation idle pulley under;
Can not to set up the packet network that Gs association and MME carry out in evolution for user terminal be that user terminal is set up the SGs association if Gs interface information is SGSN, and MME does not activate the saving signaling mechanism under the idle pulley.
The processing method of the ISR mechanism that the embodiment of the invention provides is returned in the CS business under the scene of legacy network processing, can select whether activate ISR mechanism according to Gs interface information or SGs interface message.Activating ISR mechanism and do not activating that can both to remain SGs or Gs that UE sets up under the ISR mechanism situation related, thereby guaranteeing that UE returns the continuity of CS business under the legacy network processing scene in the CS business.
Description of drawings
Fig. 1 is a prior art GPRS/UMTS network architecture diagram;
Fig. 2 is prior art radio gradual network structure figure (a non-roaming scene);
Fig. 3 is a prior art EPS network architecture schematic diagram;
Fig. 4 is the flow chart of the processing method one of embodiment of the invention ISR mechanism;
Fig. 5 is the embodiment flow chart of the processing method one of embodiment of the invention ISR mechanism;
Fig. 6 is the flow chart of the processing method two of embodiment of the invention ISR mechanism;
Fig. 7 is the embodiment flow chart of the processing method two of embodiment of the invention ISR mechanism;
Fig. 8 be embodiment of the invention ISR mechanism the schematic diagram of processing unit one;
Fig. 9 be embodiment of the invention ISR mechanism the schematic diagram of processing unit two.
Embodiment
Embodiments of the invention provide a kind of processing method and device of ISR mechanism, are activating the continuity that can both guarantee the CS business under the ISR scene machine-processed and not activation mechanism.
Be described in detail below in conjunction with processing method, the device of accompanying drawing a kind of ISR mechanism of the embodiment of the invention.
As shown in Figure 4, embodiments of the invention provide a kind of processing method of I SR mechanism, and described method comprises:
S11, SGSN obtain the SGs interface message;
S12, SGSN select whether to activate I SR mechanism between SGSN and the MME according to described SGs interface message, thereby remain SGs association or the Gs association that user terminal is set up.
Embodiment one
As shown in Figure 5, the embodiment of the invention is when UE is registered in MME, and the CS business is returned the processing method that legacy network is handled ISR under the scene, comprises step:
S10, UE move under the SGSN1, initiate routing update; Wherein, the routing update request message carries the GUTI (Globally Unique Temporary Identity whole world unique temporary identity) that MME distributes.After UE successfully is attached to MME, if UE indicates CSfallback indicator in Attach Request (Attach Request message), then MME also needs UE is registered to MSC, and this moment, MME was that UE sets up the SGs association, and MME and MSC recording status are SGs-ASSOCIATED.
S11, SGSN obtain the SGs interface message;
S12, SGSN select whether to activate ISR mechanism between SGSN and the MME according to described SGs interface message, thereby remain SGs association or the Gs association that user terminal is set up;
S13, SGSN and Serving GW confirm more new bearer alternately; Wherein, SGSN sends and upgrades bearing request message to Serving GW, and after Serving GW upgraded bearer context, returning more, new bearer responded to SGSN.
S14, SGSN and HSS are mutual, completing place registration and subscription data acquisition process;
S15, SGSN and UE finish routing update alternately;
SGSN issues routing update and accepts message to UE, comprises the information that newly assigned temporary identity sign P-TMSI and indication ISR activate in the message.Afterwards, UE sends routing update and finishes message to SGSN;
S16, UE carry out periodic location update in SGSN and MME;
After ISR activated, UE used the GUTI and P-TMSI (the IPacket Temporary Mobile Subscriber Identity Packet Temporary Mobile Subscriber Identity sign) sign oneself of two system assignment, in upstream request message, carries above-mentioned sign simultaneously.UE had both carried out the routing update and the periodically routing update of normal SGSN inside under SGSN, also carry out the tracing section updating and the periodicity tracing section updating of normal MME inside under MME.SGSN and MME start the periodic location update of corresponding user Ke Da timer monitoring UE, and the MME recording status is SGs-ASSOCIATED, then do not follow the occurrence positions district to upgrade (Location Area Update) the generating period tracing section updating time.The SGSN recording status is Gs-ASSOCIATED, does not then follow the generating period Routing Area Update time occurrence positions district to upgrade (Location Area Update).If aperiodicity is upgraded, then need to carry out associated update to guarantee SGs association or the Gs association of UE.
S17, MME carry out bearer update;
When UE in the GERAN/UTRAN system, foundation or the modification or the deletion of carrying have taken place, the bearer context on UE, SGSN, Serving GW, the PDN GW all carried out corresponding renewal, and MME goes up the bearer context of preserving that still not have variation.The state that UE can revise GUTI this moment is renewal, and record needs to initiate bearer update.The concrete steps that MME carries out bearer update are:
S17A, UE move under the MME, send the tracing section updating request message to MME, carry S-TMSI and P-TMSI in the message, and indication need more new bearer;
S17B, MME and SGSN finish bearer update alternately;
S17C, MME are initiated to the bearer update of Serving GW, upgrade the information in the bearer context on the Serving GW;
S17D, MME issue routing update and accept message to UE, the information that indication ISR activates.
In the present embodiment, step S10:SGSN obtains the SGs interface message and is specially:
The message that S10A, SGSN provide by user terminal is obtained the SGs interface message;
Perhaps,
The context message that S10B, SGSN provide by MME is obtained the SGs interface message.
The specific implementation of step S10A can be, and UE carries cell " CS fallback indicator " and whether has the SGs association with indication SGSN:UE in the routing update request message.Do not carry, perhaps cell is taken as invalid value, then identifies UE and does not have the SGs association.
The specific implementation of step S10B can be, and SGSN carries in context request message (context request) whether cell inquiry MME is that UE sets up the SGs association, and whether the SGs interface message that promptly keeps among the MME is SGs-ASSOCIATED.MME record SGs information is SGs-ASSOCIATED (having set up the SGs association for UE), then in Context Response message, provide the information of setting up the SGs association for UE according to inquiry or active, it takes the form of, carrying a cell (as: CSfallback indicator) indication in Context Response message sets up the SGs association or indicates UE successfully must carry out the EPS/IMSI attachment flow of associating for UE this moment,, can be that the embodiment of cell own also can be certain value embodiment of cell promptly for UE has set up the SGs association.
Among the present embodiment step S11, SGSN selects whether to activate ISR mechanism between SGSN and the MME according to the SGs interface message, comprises following several situation thereby remain SGs association or the Gs association that user terminal sets up:
(1) if the SGs interface message is MME to be set up SGs association and SGSN for user terminal and can be user terminal and set up the Gs association, SGSN is according to the processing of normal activations ISR mechanism;
(2) if the SGs interface message is that MME sets up the SGs association for user terminal and SGSN can not set up the Gs association for user terminal, SGSN does not activate ISR mechanism;
(3) if the SGs interface message is that MME sets up the SGs association for user terminal, SGSN does not activate ISR mechanism;
Perhaps,
(4) if the SGs interface message is that MME does not set up the SGs association for user terminal, SGSN activates treatment mechanism according to normal ISR and selects to activate ISR mechanism;
(5) if the SGs interface message is that MME sets up the SGs association for user terminal, SGSN does not set up the Gs association for user terminal after activating ISR mechanism, and SGSN sends position information of user's terminal or MSC address to MME.Afterwards, position information of user's terminal or MSC address that MME provides according to described SGSN, sending out message to MSC is that user terminal rebulids the SGs association; Simultaneously, the SGSN indicating user terminal triggers the execution that packet domain is upgraded in the executive circuit area update in the 2G/3G network;
(6), set up Gs for user terminal after the SGSN activation ISR mechanism and connect if the SGs interface message is that MME sets up the SGs association for user terminal.
Under above-mentioned (5), (6) two kinds of situations, when UE carries out RAU at every turn,, then all need to send out a message informing and set up the related MME of ISR with it for the Gs interface related information of UE if find to have started ISR.This related information comprises: whether a1, SGSN are that UE has set up the Gs interface association; If b1 SGSN does not set up the Gs interface association for UE, then SGSN need provide the positional information (as: LAI or RAI) of UE to give MME, is convenient to MME and finds the current resident MSC of UE to recover the SGs interface.Also can provide the MSC address strap to MME by SGSN this moment.Behind the Gs related information that MME reception SGSN provides, do following processing: set up the Gs association if a2 SGSN is UE, MME is left intact; If b2 SGSN does not set up the Gs interface association for UE, MME considers that when keeping ISR UE may carry out the LAU flow process, and the SGs association of UE may be discharged by MSC, then needs initiatively to send out message and sets up the SGs association for UE again to MSC.
In addition, SGSN does not activate ISR when mechanism, sends in the message of MME and does not carry the indication that activates ISR mechanism; When SGSN activates ISR mechanism, send in the message of MME and carry the indication that activates ISR mechanism.
The CS business that the embodiment of the invention provides is returned the processing method that legacy network is handled ISR under the scene, returns under the scene that legacy network handles in the CS business, and SGSN can select whether to activate ISR mechanism according to the SGs interface message that MME or user terminal provide.Activating ISR mechanism and do not activating that can both to remain SGs or Gs that UE sets up under the ISR mechanism situation related, thereby guaranteeing that UE returns the continuity of CS business under the legacy network processing scene in the CS business.
As shown in Figure 6, embodiments of the invention also provide a kind of processing method of ISR mechanism, and described method comprises:
S21, MME obtain Gs interface information
Whether S22, MME activate ISR mechanism between MME and the SGSN according to described Gs interface Information Selection, thereby remain SGs association or Gs association that user terminal is set up.
Embodiment two
As shown in Figure 7, the embodiment of the invention is when UE is registered in SGSN, and the CS business is returned the processing method that legacy network is handled ISR under the scene, comprises step:
S20, UE move under the MME, initiating updating of tracking area;
S21, MME obtain Gs interface information;
Whether S22, MME activate ISR mechanism between MME and the SGSN according to described Gs interface Information Selection, thereby remain SGs association or Gs association that user terminal is set up;
S23, MME and Serving GW confirm more new bearer alternately; Wherein, SGSN sends and upgrades bearing request message to Serving GW, and after Serving GW upgraded bearer context, returning more, new bearer responded to MME.
S24, MME and HSS mutual completing place registration and subscription data obtain;
S25, MME and UE finish tracing section updating alternately;
S26, UE carry out periodic location update in SGSN and MME;
After ISR activated, UE used the GUTI and the P-TMSI sign oneself of two system assignment, in upstream request message, carries above-mentioned sign simultaneously.UE had both carried out the routing update and the periodically routing update of normal SGSN inside under SGSN, also carry out the tracing section updating and the periodicity tracing section updating of normal MME inside under MME.SGSN and MME start the periodic location update of corresponding user Ke Da timer monitoring UE, and the MME recording status is SGs-ASSOCIATED, then do not follow the occurrence positions district to upgrade (Location Area Update) the generating period tracing section updating time; The SGSN recording status is Gs-ASSOCIATED, does not then follow the generating period Routing Area Update time occurrence positions district to upgrade.If aperiodicity is upgraded, then need to carry out associated update to guarantee SGs association or the Gs association of UE.
S27, SGSN carry out bearer update.
When UE in the GERAN/UTRAN system, foundation or the modification or the deletion of carrying have taken place, the bearer context on UE, MME, Serving GW, the PDN GW all carried out corresponding renewal, and SGSN goes up the bearer context of preserving that still not have variation.The state that UE can revise GUTI this moment is renewal, and record needs to initiate bearer update.The concrete steps that SGSN carries out bearer update are:
S27A, UE move under the SGSN, send the tracing section updating request message to SGSN, carry S-TMSI and P-TMSI in the message, and indication need more new bearer;
S27B, SGSN and MME finish bearer update alternately;
S27C, MME are initiated to the bearer update of Serving GW, upgrade the information in the bearer context on the Serving GW.
S27D, MME issue routing update and accept message to UE, the information that indication ISR activates.
In the present embodiment, step S20MME obtains Gs interface information and is:
The message that S20A, MME provide by user terminal is obtained Gs interface information;
Perhaps,
The context message that S20B, MME provide by MME is obtained Gs interface information.
The specific implementation of step S20A can be, and UE carries cell " CSfallback indicator " and whether has the SGs association with indication SGSN:UE in the tracing section updating request message.Do not carry, perhaps cell is taken as invalid value, then identifies UE and does not have the SGs association.
The specific implementation of step S20B can be, and whether MME carries cell (as: Gs Capability Needed) inquiry SGSN in message can set up Gs association (SGSN keeps the Gs interface information of UE) for UE.The information that SGSN provides may be: the Gs interface information that SGSN provides may be: can't set up the Gs association for UE; Can be for UE set up the GS association, still the Gs interface information of SGSN maintenance at present is Gs-NULL; The Gs interface information that SGSN keeps is Gs-ASSOCIATED (having set up the Gs association for UE).
Among the present embodiment step S21, whether MME activates ISR mechanism according to the Gs interface Information Selection of described SGSN, thereby the SGs association or the Gs association that remain user terminal foundation comprise following several situation:
(1) if Gs interface information is SGSN be can be user terminal to set up the packet network that Gs association and MME carry out in evolution be that user terminal is set up the SGs association, MME is according to the processing of normal activations ISR mechanism;
(2) can not to set up the packet network that Gs association and MME carry out in evolution for user terminal be that user terminal is set up the SGs association if Gs interface information is SGSN, and MME does not activate ISR mechanism;
Perhaps,
(3) if Gs interface information be SGSN can not for user terminal set up Gs association and MME the packet network of evolution be user terminal set up the related MME of SGs activate ISR mechanism simultaneously indicating user terminal in the 2G/3G network, trigger the execution that packet domain is upgraded in the executive circuit area update;
(4) if MME is that user terminal is set up the SGs association at the packet network of evolution, MME does not activate ISR mechanism;
Perhaps,
(5) if MME does not set up the SGs association for user terminal at the packet network of evolution, MME handles according to normal activation ISR mechanism.
In addition, MME does not activate ISR when mechanism, sends in the message of SGSN and does not carry the indication that activates ISR mechanism; When MME activates ISR mechanism, send in the message of SGSN and do not carry the indication that activates ISR mechanism.
The CS business that the embodiment of the invention provides is returned the processing method that legacy network is handled ISR under the scene, returns legacy network in the CS business and handles under the scene, and whether MME can activate ISR mechanism according to the Gs interface Information Selection that SGSN or user terminal provide.Can both remain one of them related of SGs that UE sets up under the ISR mechanism situation activating ISR mechanism and do not activate, thereby guarantee that UE returns the continuity of CS business under the legacy network processing scene in the CS business with Gs.
As shown in Figure 8, the present invention also provides a kind of SGSN device, and this SGSN comprises:
SGs interface message acquiring unit 1 is used for SGSN and obtains the SGs interface message;
ISR mechanism selected cell 2 is used for SGSN and selects whether to activate ISR mechanism between SGSN and the MME according to described SGs interface message, thereby remains SGs association or the Gs association that user terminal is set up.
The message that context message that SGs interface message acquiring unit 1 provides by MME or user provide is obtained the SGs interface message, obtain the method and the ISR mechanism selected cell 2 of SGs interface message and select the method for ISR mechanism in said method example one, to describe in detail, do not repeat them here.
As shown in Figure 9, the present invention also provides a kind of MME device, and this MME comprises:
Gs interface information acquisition unit 3 is used for MME and obtains Gs interface information;
ISR mechanism selected cell 4 is used for MME and whether activates ISR mechanism between SGSN and the MME according to described Gs interface Information Selection, thereby remains SGs association or the Gs association that user terminal is set up.
The message that context message that Gs interface information acquisition unit 3 provides by SGSN or user provide is obtained Gs interface information, obtain the method and the ISR mechanism selected cell 2 of SGs interface message and select the method for ISR mechanism in said method example two, to describe in detail, do not repeat them here.
The processing unit of the ISR mechanism that the embodiment of the invention provides, the SGs or the Gs interface interface message that provide according to the interface message acquiring unit, whether ISR mechanism selected cell activates ISR mechanism, can both remain one of them related of SGs that UE sets up under the ISR mechanism situation activating ISR mechanism and do not activate, thereby guarantee that UE returns the continuity of CS business under the legacy network processing scene in the CS business with Gs.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (13)
1. the processing method of the saving signaling mechanism under the idle pulley is characterized in that described method comprises:
Serving GPRS Support Node SGSN obtains the SGs interface message;
SGSN selects whether to activate idle pulley saving signaling mechanism down between SGSN and the mobile management entity MME according to described SGs interface message, thereby remains the SGs association or the Gs association of user terminal foundation;
Wherein, described SGSN selects whether to activate idle pulley saving signaling mechanism down between SGSN and the MME according to described SGs interface message, thereby comprises for user terminal maintenance SGs association or Gs association:
If the SGs interface message is MME to be set up SGs association and SGSN for user terminal and can be user terminal and set up the Gs association, SGSN is according to the processing of the mechanism of the saving signaling normal activation idle pulley under;
If the SGs interface message is that MME sets up the SGs association for user terminal and SGSN can not set up the Gs association for user terminal, SGSN does not activate the saving signaling mechanism under the idle pulley;
If the SGs interface message is that MME sets up the SGs association for user terminal, SGSN does not activate the saving signaling mechanism under the idle pulley.
2. the processing method of the saving signaling mechanism under the idle pulley according to claim 1 is characterized in that, described SGSN obtains the SGs interface message and comprises:
The context message that SGSN provides by MME is obtained the SGs interface message; Perhaps,
The message that SGSN provides by user terminal is obtained the SGs interface message.
3. the processing method of the saving signaling mechanism under the idle pulley according to claim 2, it is characterized in that, described SGSN selects whether to activate idle pulley saving signaling mechanism down between SGSN and the MME according to described SGs interface message, thereby also comprises for user terminal maintenance SGs association or Gs association:
If the SGs interface message is that MME does not set up the SGs association for user terminal, SGSN handles according to the mechanism of the saving signaling under the normal activation idle pulley.
4. the processing method of the saving signaling mechanism under the idle pulley according to claim 2, it is characterized in that, described SGSN selects whether to activate idle pulley saving signaling mechanism down between SGSN and the MME according to described SGs interface message, thereby also comprises for user terminal maintenance SGs association or Gs association:
If the SGs interface message is that MME sets up the SGs association for user terminal, set up the Gs association for user terminal after the saving signaling mechanism under the SGSN activation idle pulley;
If the SGs interface message is that MME sets up the SGs association for user terminal, do not set up the Gs association after the saving signaling mechanism under the SGSN activation idle pulley for user terminal, SGSN sends position information of user's terminal or MSC address to MME.
5. the processing method of the saving signaling mechanism under the idle pulley according to claim 4, it is characterized in that, it is described if the SGs interface message is to set up the SGs association for user terminal, do not set up the Gs association for user terminal after the saving signaling mechanism under the SGSN activation idle pulley, SGSN comprises after MME sends position information of user's terminal or MSC address:
Position information of user's terminal or MSC address that MME provides according to described SGSN, sending out message to MSC is that user terminal rebulids the SGs association;
The SGSN indicating user terminal triggers the execution that packet domain is upgraded in the executive circuit area update in the 2G/3G network.
6. the processing method of the saving signaling mechanism under the idle pulley is characterized in that described method comprises:
Mobile management entity MME is obtained Gs interface information;
Whether MME activates saving signaling mechanism under the idle pulley between MME and the Serving GPRS Support Node SGSN according to described Gs interface Information Selection, thereby remains SGs association or the Gs association that user terminal is set up;
Wherein, whether described MME activates saving signaling mechanism under the idle pulley between MME and the SGSN according to described Gs interface Information Selection, comprises thereby remain SGs association or the Gs association that user terminal sets up:
If Gs interface information is SGSN be can be user terminal to set up the packet network that Gs association and MME carry out in evolution be that user terminal is set up the SGs association, MME is according to the processing of the mechanism of the saving signaling normal activation idle pulley under;
Can not to set up the packet network that Gs association and MME carry out in evolution for user terminal be that user terminal is set up the SGs association if Gs interface information is SGSN, and MME does not activate the saving signaling mechanism under the idle pulley.
7. the processing method of the saving signaling mechanism under the idle pulley according to claim 6 is characterized in that, described MME obtains Gs interface information and comprises:
The context message that MME provides by SGSN is obtained Gs interface information; Perhaps,
The message that MME provides by user terminal is obtained Gs interface information.
8. the processing method of the saving signaling mechanism under the idle pulley according to claim 6, it is characterized in that, whether described MME activates saving signaling mechanism under the idle pulley between MME and the SGSN according to described Gs interface Information Selection, thereby also comprises for user terminal keeps SGs association or Gs association:
Can not set up the Gs association and MME is that user terminal is set up the SGs association at the packet network of evolution for user terminal if Gs interface information is SGSN, MME activate idle pulley saving signaling mechanism down simultaneously indicating user terminal in the 2G/3G network, trigger the execution of packet domain renewal in the executive circuit area update.
9. the processing method of the saving signaling mechanism under the idle pulley according to claim 6, it is characterized in that, whether described MME activates saving signaling mechanism under the idle pulley between MME and the SGSN according to described Gs interface Information Selection, thereby also comprises for user terminal keeps SGs association or Gs association:
If MME is that user terminal is set up the SGs association at the packet network of evolution, MME does not activate the saving signaling mechanism under the idle pulley;
If MME does not set up the SGs association for user terminal at the packet network of evolution, MME handles according to the mechanism of the saving signaling under the normal activation idle pulley.
10. a SGSN device is characterized in that, described SGSN device comprises:
SGs interface message acquiring unit is used for Serving GPRS Support Node SGSN and obtains the SGs interface message;
Saving signaling mechanism selected cell under the idle pulley, be used for SGSN and select whether to activate idle pulley saving signaling mechanism down between SGSN and the mobile management entity MME, thereby remain the SGs association or the Gs association of user terminal foundation according to described SGs interface message;
Wherein, described SGSN selects whether to activate idle pulley saving signaling mechanism down between SGSN and the MME according to described SGs interface message, thereby the SGs association or the Gs association that remain user terminal foundation comprise:
If the SGs interface message is MME to be set up SGs association and SGSN for user terminal and can be user terminal and set up the Gs association, SGSN is according to the processing of the mechanism of the saving signaling normal activation idle pulley under;
If the SGs interface message is that MME sets up the SGs association for user terminal and SGSN can not set up the Gs association for user terminal, SGSN does not activate the saving signaling mechanism under the idle pulley;
If the SGs interface message is that MME sets up the SGs association for user terminal, SGSN does not activate the saving signaling mechanism under the idle pulley.
11. SGSN device according to claim 10 is characterized in that, described SGs interface message acquiring unit, and the message that context message that provides by MME or user provide is obtained the SGs interface message.
12. a MME device is characterized in that, described MME device comprises:
The Gs interface information acquisition unit is used for mobile management entity MME and obtains Gs interface information;
Saving signaling mechanism selected cell under the idle pulley, be used for MME and whether activate saving signaling mechanism under the idle pulley between Serving GPRS Support Node SGSN and the MME, thereby remain SGs association or the Gs association that user terminal is set up according to described Gs interface Information Selection;
Wherein, whether described MME activates saving signaling mechanism under the idle pulley between SGSN and the MME according to described Gs interface Information Selection, comprises thereby remain SGs association or the Gs association that user terminal sets up:
If Gs interface information is SGSN be can be user terminal to set up the packet network that Gs association and MME carry out in evolution be that user terminal is set up the SGs association, MME is according to the processing of the mechanism of the saving signaling normal activation idle pulley under;
Can not to set up the packet network that Gs association and MME carry out in evolution for user terminal be that user terminal is set up the SGs association if Gs interface information is SGSN, and MME does not activate the saving signaling mechanism under the idle pulley.
13. MME device according to claim 12 is characterized in that, described Gs interface information acquisition unit, and the message that context message that provides by SGSN or user provide is obtained Gs interface information.
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| WO2011127657A1 (en) * | 2010-04-14 | 2011-10-20 | 华为技术有限公司 | Method for circuit switched fallback and mobile management entity |
| CN102143476B (en) * | 2010-11-19 | 2013-11-06 | 华为技术有限公司 | Gs or SGs interface message processing method and Gs or SGs interface message processing device |
| WO2013056423A1 (en) * | 2011-10-18 | 2013-04-25 | 华为技术有限公司 | Method and device for deactivating idle saving signalling in circuit-switched fallback scenario |
| JP5802842B2 (en) * | 2011-11-03 | 2015-11-04 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Method and device for establishing a GS association |
| JP6033401B2 (en) | 2012-04-10 | 2016-11-30 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Service processing method and apparatus in communication network |
| CN113207139B (en) * | 2021-05-12 | 2022-07-12 | 中国联合网络通信集团有限公司 | Method for keeping ISR activated, mobile terminal and MSC |
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