CN102026143A - Method and equipment for realizing idle state saving signaling - Google Patents

Abstract

The invention relates to the technical field of network communication and discloses a method and equipment for realizing idle state saving signaling. The method comprises the following steps of: when idle user equipment is accessed into a second network from a first network and if ISR (Information Storage and Retrieval) is activated, preserving position area information of the second network by the user equipment, and maintaining the preserved position area information of the first network; if the user equipment moves outside the corresponding position area of the position area information of the first network and the position area information of the second network, triggering updating processes of a mobile switching center. The invention can be used for reducing signaling treatment when the idle UE (User Equipment) moves between an E-UTRAN (Evolved-Universal Terrestrial Radio Access Network) based on VoLGA and the traditional GERAN/UTRAN (UMTS Terrestrial Radio Access Network/ UMTS Terrestrial Radio Access Network) and realizes the ISR.

Description

Realize the method and apparatus of Idle state saving signaling

Technical field

The present invention relates to the network communications technology, be specifically related to a kind of method and apparatus of realizing the Idle state saving signaling.

Background technology

In order to tackle the challenge of wireless broad band technology, keep 3GPP (The 3rd Generation Partnership Project, third generation partner plan) leading superiority of network, formulated LTE (Long Term Evolution, Long Term Evolution) plan, defined the framework of new mobile communications network, this framework has only kept packet domain, therefore can be called EPS (Evolved Packet System, the grouping system of evolution).Its core net mainly comprises MME (Mobility Management Entity, mobile management entity), S-GW (Serving Gateway, gateway), three logic function bodies of P-GW (Packet Data Network Gateway, grouped data network gateway).

A demand of evolvement network is to realize ISR (Idle mode Signalling Reduction, saving signaling under the idle pulley or limitation signaling) function, mainly be to reduce the UE of idle pulley because the change of frequent connecting system, the frequent Signalling exchange that carries out with core network.For example, UE is at GERAN (GSM EDGE Radio Access Network, GSM EDGE Radio Access Network)/UTRAN (UMTS Terrestrial Radio Access Network, Universal Mobile Telecommunications System) moves between network and the E-UTRAN network, because the change of Access Network, UE need carry out RAU (RoutingArea Update respectively, Routing Area Update) or TAU (Tracking Area Update, tracing section updating) flow process, promptly carry out the mobile management flow process in PS (Packet System, grouping system) territory.At present, the solution of ISR mechanism is that UE registers at two different access networks between the 3GPP access network, the UE of subsequent idle pattern moves at registration area-RA (route district) that the GERAN/UTRAN network is write down with between registration area-TA (tracking area) that the E-UTRAN network is write down, can not trigger the mobile management flow process in PS territory, as the RAU/TAU flow process, can reach the effect of saving signaling like this.

The speech business of operator is current substantially at CS (Circuit System, Circuits System) runs in the territory, when network evolves to the LTE epoch, in order in the LTE network, to reuse existing speech business, operator has proposed to be connected to by the LTE network method in CS territory, be referred to as VoLGA (Voice over LTE via Generic Access is by the common voice operating that is linked into LTE).In current VoLGA standard, UE with VoLGA ability carries out CS business (for example speech business) at the E-UTRAN network, this moment, UE was in the VoLGA mode of operation, be that UE is in GA-RC REGISTERED (Generic Access-Resource Control REGISTERED, common access-in resource control registration) state (being the login state of VoLGA), the prerequisite of VoLGA mode of operation is to need UE to be accomplished to the register flow path of VANC (VoLGA Access Network Controller, VoLGA access network controller); And the UE with VoLGA ability carries out CS business (for example speech business) at the GERAN/UTRAN network, then is in the GERAN/UTRAN mode of operation.In addition, if UE is moved to the mode of operation of GERAN/UTRAN environment from the mode of operation of VoLGA environment, UE need be with state transition to GA-RC DEREGISTERED (registration is gone in common access-in resource control) state (being the login state that goes of VoLGA).Particularly, UE need be initiated to the register flow path that goes of VANC.

That is to say that under the VoLGA environment, the UE of VoLGA ability is mobile between E-UTRAN network and GERAN/UTRAN will to cause the mode of operation of UE also to be changed if having.For example, idle UE is from E-UTRAN network insertion GERAN/UTRAN network, and UE is transformed into the GERAN/UTRAN mode of operation, and in addition, UE need be initiated to the register flow path that goes of VANC, and UE is moved to the GA-RCDEREGISTERED state.And in order to be accomplished to the register flow path that goes of VANC, UE need be moved to connection status from Idle state at GERAN/UTRAN network start flow, for example RAU flow process or service request flow process.In like manner, idle UE returns the E-UTRAN network again from the GERAN/UTRAN network, and UE is transformed into the VoLGA mode of operation, and UE need initiate the register flow path of VANC again, and UE is moved to GA-RC REGISTERED state.And in order to be accomplished to the register flow path of VANC, UE need be in the E-UTRAN network start flow, move to connection status from Idle state, for example TAU flow process or service request flow process.

As seen, the UE that Idle state has the VoLGA ability moves at traditional GERAN/UTRAN network and between based on the E-UTRAN network of VoLGA, when the connecting system change takes place, for the conversion of the pattern of finishing the work, all need to carry out Signalling exchange, thereby can't realize ISR with core network.

Summary of the invention

The embodiment of the invention provides a kind of method and apparatus of realizing the Idle state saving signaling, to reduce idle UE signaling process when mobile between based on the E-UTRAN network of VoLGA and traditional GERAN/UTRAN network, realizes ISR.

The embodiment of the invention provides a kind of method that realizes the Idle state saving signaling, comprising:

When free subscriber equipment during from first network insertion, second network, if ISR activates, then subscriber equipment is preserved the location area information of second network, and the location area information of first network of preserving before keeping;

If subscriber equipment moves to outside the band of position of location area information correspondence of the location area information of first network of preservation and second network, then be triggered to the more new technological process of mobile switching centre.

The embodiment of the invention provides a kind of subscriber equipment, comprising:

The location area information receiving element is used for being in Idle state and during from first network insertion, second network, under the ISR state of activation, receiving the location area information of second network of current access at described subscriber equipment;

Memory cell, the location area information that is used to preserve current access second network, and the location area information of first network of preserving before keeping;

Upgrade the trigger flow unit, be used for when described subscriber equipment moves to outside the band of position of location area information correspondence of the location area information of first network of preservation and second network, being triggered to the more new technological process of mobile switching centre.

The embodiment of the invention provides a kind of switching addressing function equipment, comprising:

The message sink unit is used to receive the beep-page message that mobile switching centre sends;

Message sending unit is used for after described message sink unit receives described beep-page message, sends the VoLGA beep-page message to the VANC of service-user equipment.

The embodiment of the invention realizes the method and apparatus of Idle state saving signaling, when free subscriber equipment during from first network insertion, second network, if ISR activates, then subscriber equipment is preserved the location area information of second network, and the location area information of first network of preserving before keeping; If subscriber equipment moves to outside the band of position of location area information correspondence of the location area information of first network of preservation and second network, then be triggered to the more new technological process of mobile switching centre.Thereby can reduce free subscriber equipment between based on the E-UTRAN network of VoLGA and traditional GERAN/UTRAN network when mobile and the Signalling exchange load of network.

Description of drawings

Fig. 1 is the flow chart that the embodiment of the invention realizes the method for Idle state saving signaling;

Fig. 2 is idle UE message interaction process when mobile between based on the E-UTRAN network of VoLGA and traditional GERAN/UTRAN network in the embodiment of the invention;

Fig. 3 is existing CSoPS configuration diagram;

Fig. 4 is by switching the networking schematic diagram that addressing function is transmitted to beep-page message VANC in the embodiment of the invention;

Fig. 5 is that the embodiment of the invention is a kind of flow chart that idle UE is realized the CS business in the embodiment of the invention;

Fig. 6 is that the embodiment of the invention is the another kind of flow chart that idle UE is realized the CS business in the embodiment of the invention;

Fig. 7 is that the embodiment of the invention is the another kind of flow chart that idle UE is realized the CS business in the embodiment of the invention;

Fig. 8 is a kind of structural representation of embodiment of the invention subscriber equipment;

Fig. 9 is the another kind of structural representation of embodiment of the invention subscriber equipment;

Figure 10 is a kind of structural representation that the embodiment of the invention is switched addressing function equipment.

Embodiment

In order to make those skilled in the art person understand the scheme of the embodiment of the invention better, the embodiment of the invention is described in further detail below in conjunction with drawings and embodiments.

As shown in Figure 1, be the flow chart that the embodiment of the invention realizes the method for Idle state saving signaling, may further comprise the steps:

Step 101, when idle UE during from first network insertion, second network, if ISR activates, then UE preserves the location area information of second network, and the location area information of first network of preserving before keeping.

Step 102 if UE moves to outside the band of position of location area information correspondence of the location area information of first network of preservation and second network, then is triggered to the more new technological process of MSC (Mobile Switching Center, mobile switching centre).

Certainly, if the location area information of first network of preserving and the location area information of second network do not change, then UE is not triggered to the more new technological process of MSC, loads thereby reduced effectively with the Signalling exchange of network.

In embodiments of the present invention, described first network can be the E-UTRAN network, and correspondingly, described second network is the GERAN/UTRAN network.The UE of idle condition is during from E-UTRAN network insertion GERAN/UTRAN network, receives the position that SGSN sends and upgrades response message, is used to the ISR information of indicating ISR to activate if described position is upgraded to carry in the response message, and then UE determines that ISR activates.In this case, in order further to reduce owing to the mode of operation of the frequent UE of switching Signalling exchange load that cause and network.Under the situation that ISR activates, UE is during from E-UTRAN network insertion GERAN/UTRAN network, and keeps GA-RC REGISTERED state.UE keeps the GA-RCREGISTERED state that multiple implementation method can be arranged, and will describe in detail in the back.

Certainly, do not carry ISR information if the position that described SGSN sends is upgraded in the response message, then when connecting system changed, UE can handle according to existing protocol.

In embodiments of the present invention, described first network can also be the GERAN/UTRAN network, and correspondingly, described second network is the E-UTRAN network.The UE of idle condition is during from GERAN/UTRAN network insertion E-UTRAN network, receives the tracing section updating that MME sends and accepts message, is used to the ISR information of indicating ISR to activate if described tracing section updating is accepted to carry in the message, and then UE determines that ISR activates.

The embodiment of the invention realizes the method for Idle state saving signaling, can reduce idle UE and load with the Signalling exchange of network when mobile between based on the E-UTRAN network of VoLGA and traditional GERAN/UTRAN network.

Below main processing procedure during from E-UTRAN network insertion GERAN/UTRAN network is that example is elaborated to the embodiment of the invention with UE.

Message interaction process when as shown in Figure 2, to be embodiment of the invention hollow UE between based on the E-UTRAN network of VoLGA and traditional GERAN/UTRAN network mobile.

Step 201.UE inserts the E-UTRAN network, is accomplished to the registration of MME, and is established to the IP tunnel of VANC.

UE obtains TAI (Tracking Area Identity, the tracking area identification) list information that MME provides in the process of MME registration, and UE preserves this TAI tabulation.When UE was mobile in this TAI tabulation scope, UE can not trigger the interaction flow with MME, promptly can not trigger the TAU flow process.

The process that UE is established to the IP tunnel of VANC can be the process of setting up relevant PDN (Packet Data Network, the Packet Data Network) connection of VoLGA that UE initiates.

Step 202.UE is initiated to the register flow path of VANC, is accomplished to the registration of VANC, and UE is in GA-RC REGISTERED state (being the login state of VoLGA).

In registration process, VANC can distribute VANC TAI tabulation, VoLGA LAI (Location Area Identity, location area) to UE.UE preserves this VANC TAI tabulation, and when UE was mobile in this VANC TAI tabulation scope, UE can not trigger the interaction flow with VANC, promptly can not trigger VoLGA register update flow process.

Step 203.UE is accomplished to the registration of MSC by VANC, promptly finishes the register flow path of CS.

In this process, MSC distributes LAI information to UE, and described LAI is identical with VoLGALAI in the step 102, and UE preserves described LAI information.The active position zone of the UE that writes down among the MSC also is described LAI.For with follow-up differentiation, MSC is defined as E-UTRAN-LAI to the LAI that UE distributes.

Step 204.UE is from E-UTRAN network insertion GERAN/UTRAN network.

Step 205. is because change has taken place in connecting system, and UE sends location update request message to SGSN, and for example RAU asks;

The MME of service UE is mutual in step 206.SGSN and the E-UTRAN network, obtains the context of UE, can also obtain the ISR ability information of MME in this process.

Step 207.SGSN selects to activate ISR according to the ability information of the ISR of the MME of service UE in self-ability and the E-UTRAN network.Particularly, can upgrade in the position and carry ISR information in the response message, UE receives described message, knows that ISR activates.In addition, upgrade in the response message in the position, SGSN also provides RAI information to UE.

If ISR activates, when mobile, if connecting system changes, UE can not trigger the mobile management flow process in PS territory to UE, as RAU flow process or TAU flow process between the TA of the RA of the GERAN/UTRAN network that is write down and E-UTRAN network.

In addition, in embodiments of the present invention, UE also needs to carry out following processing:

(1) UE can remain on GA-RC REGISTERED state, be the related context (comprising that VANC distributes to VANC TAI list information and/or E-UTRAN-LAI (VoLGA-LAI) information of UE) that UE still can keep the VoLGA mode of operation, do not need to carry out the register flow path that goes to VANC.

Under ISR scene of the present invention, if UE perception ISR activates, then UE selects to keep GA-RC REGISTERED state; Otherwise UE initiates the register flow path that goes to VANC, forwards state to GA-RC DEREGISTERED state.The mode whether UE perception ISR activates is to confirm the position that network side sends upgrades whether carry ISR activation indication information in the response message.

In embodiments of the present invention, as UE during from E-UTRAN network insertion GERAN/UTRAN network, if ISR activates, UE selects to keep GA-RC REGISTERED state, and preferred processing mode is as follows:

At first, in UE resides in E-UTRAN network based on VoLGA, VANC can distribute a timer to UE, for example, carry out in the register flow path or register update flow process of VANC at UE, VANC carries timer " deregister on rove-out " in the message that UE sends, be used to trigger the go register flow path of UE initiation to VANC.When UE operates under the VoLGA mode of operation, be that CS territory service Radio Resource entity is GA-CSR (Generic Access-Circuit Switched Resources, common access-circuit switched resource) (VoLGA A pattern) or GA-RRC (Generic Access-Radio Resource Control, common access-Radio Resource control) when (VoLGA Iu pattern), UE does not need to start this timer.When the CS territory of UE service Radio Resource entity is transferred to GERAN RR (Radio Resource from GA-CSR or GA-RRC, Radio Resource) or UTRAN RRC (Radio Resource Control, Radio Resource control) time, for example, the UE that is in GA-RC REGISTERED state is from E-UTRAN network insertion GERAN/UTRAN network, connecting system changes, and UE starts this timer.When UE resides in the GERAN/UTRAN network, and described timer expiry, UE initiates the register flow path that goes to VANC.

Based on above-mentioned description of removing registration timer, UE selects to keep GA-RC REGISTERED state that following processing mode can be arranged:

A) UE inserts the GERAN/UTRAN network, connecting system changes, and UE transfers to GERAN RR or UTRAN RRC with CS territory service Radio Resource entity from GA-CSR or GA-RRC, and UE starts this timer, after UE receives that network side activates the notice of ISR, stop this timer; If UE does not receive the notice of network activation ISR, then UE can select to continue to keep described timer.

B) UE inserts the GERAN/UTRAN network, and connecting system changes, and UE transfers to GERAN RR or UTRAN RRC with CS territory service Radio Resource entity from GA-CSR or GA-RRC, and UE at first selects not start described timer.If follow-up perception ISR activates, UE still selects not start described timer; If follow-up perception and un-activation ISR, then UE can select to start described timer.Be that connecting system changes, UE transfers to GERAN RR or UTRAN RRC with CS territory service Radio Resource entity from GA-CSR or GA-RRC, and ISR does not activate and becomes the trigger condition that UE starts described timer.

C) VANC is set to long enough with the above-mentioned timing length of registration timer that goes, for example be set to be longer than the length of timer that timer duration (periodically update in the E-UTRAN network in timer duration or the GERAN/UTRAN network and periodically update timer duration) adds the deexcitation ISR that UE preserves under the ISR activation scenario that periodically updates of UE preservation, and whenever UE transfers to GA-CSR or GA-RRC with CS territory service Radio Resource entity from GERAN RR or UTRAN RRC, for example, when UE returns the E-UTRAN network from the GERAN/UTRAN network, UE can make zero this timer, next time, the CS territory service Radio Resource entity of UE was transferred to GERAN RR or UTRAN RRC from GA-CSR or GA-RRC, for example, UE restarts this timer again when the E-UTRAN network returns the GERAN/UTRAN network.

On effect, by the processing of above-mentioned any mode,, do not need to carry out the register flow path that goes to VANC as UE during from E-UTRAN network insertion GERAN/UTAAN network, UE can remain on GA-RC REGISTERED state.And, GA-CSR or GA-RRC, and GERAN RR or UTRAN RRC, can be simultaneously as the service Radio Resource entity of UE, in this case, UE both can handle and VANC between mutual, can handle again and the access network elements of GERAN/UTRAN network between mutual, for example with BSS (Base Station Subsystem, base station sub-system)/RNC (Radio Network Controller, radio network controller) between mutual.

Under the state that ISR activates, because UE still can keep GA-RC REGISTERED state, network also can keep the access-in resource of UE to VANC for UE so, relevant PDP (the Packet Data Protocol of VANC for example, packet data protocol) context, promptly network still remains into the passage of VANC for UE.

(2) the follow-up UE that works as turns back to the E-UTRAN network again from the GERAN/UTRAN network, if UE still is in the VANC TAI tabulation scope of preservation, then UE can not trigger the flow process mutual with VANC, for example the register update flow process.

Like this, idle UE moves between based on the E-UTRAN network of VoLGA and traditional GERAN/UTRAN network, can really reach the effect of saving signaling.

Need to prove no matter whether ISR activates when the UE of GA-RC REGISTERED state inserts the GERAN/UTRAN network, can continue to select to keep GA-RC REGISTERED state.In above-mentioned steps 206, if SGSN does not indicate ISR to activate, UE can select to remain on the GA-RCREGISTERED state so, and UE does not need to carry out the register flow path that goes to VANC.And network still can keep the access-in resource of UE to VANC for UE, for example, the PDP Context that VANC is relevant, promptly network still remains into the passage of VANC for UE.Perhaps, the register flow path that goes that UE can carry out to VANC (continues to move and removes registration timer or begin to start to go the registration timer wait to go registration timer overtime, the flow process registered is gone in initiation to VANC), be that UE can initiate VoLGA and goes register flow path to be accomplished to the registration of going of VANC, and move to GA-RC and remove login state (VoLGA go login state).Specifically how handling can be by operator's decision-making configuration.

Step 208. is when UE access GERAN/UTRAN network, when the E-UTRAN-LAI that perceives the LAI information (knowing) of current access and preserve from the broadcast message of access network elements is inconsistent, UE need be initiated to the more new technological process of MSC, specifically can be the independent LAU flow process or the RAU/LAU flow process of associating.

After finishing more new technological process, MSC writes down the positional information of UE again, in order to distinguish mutually with the E-UTRAN-LAI of step 203, the positional information of UE is defined as GERAN/UTRAN-LAI with this moment, and MSC is with this GERAN/UTRAN-LAI information covering or replace the E-UTRAN-LAI information of preserving before it.Otherwise if UE is from GERAN/UTRAN network insertion E-UTRAN network and activate ISR, contingent is E-UTRAN-LAI information is covered or to replace the GERAN/UTRAN-LAI information of preserving before the MSC.

For UE, UE is from E-UTRAN network insertion GEARN/UTRAN network and activate the scene of ISR, and MSC sends to UE with described GERAN/UTRAN-LAI, and it is as follows that UE receives the processing of described GERAN/UTRAN-LAI:

Described GERAN/UTRAN-LAI and E-UTRAN-LAI are inconsistent, UE can be with described GERAN/UTRAN-LAI preserves during with the E-UTRAN-LAI information of same of preserving before, be that UE not only will preserve GERAN/UTRAN-LAI, but also the E-UTRAN-LAI that preserves before will keeping.Follow-up mobile between E-UTRAN network and GERAN/UTRAN network, if the GERAN/UTRAN-LAI and the E-UTRAN-LAI that preserve do not change, UE does not trigger the flow process of carrying out Signalling exchange with MSC, for example the LAU flow process.

For UE, UE is from GEARN/UTRAN network insertion E-UTRAN network and activate the scene of ISR, UE need preserve the relevant context (MM (Mobility Management, mobile management) context) of UE in the GERAN/UTRAN network, wherein comprises GERAN/UTRAN-LAI information.When UE carried out the LAU flow process, MSC sent to UE with current E-UTRAN-LAI, and the processing that UE receives behind the described E-UTRAN-LAI is as follows:

UE preserves described E-UTRAN-LAI during with the GERAN/UTRAN-LAI information of same of preserving before, and promptly UE preserves the described E-UTRAN-LAI that receives, the GERAN/UTRAN-LAI that preserves before also will keeping simultaneously.Follow-up mobile between E-UTRAN network and GERAN/UTRAN network, if the GERAN/UTRAN-LAI and the E-UTRAN-LAI that preserve do not change, UE can not trigger the flow process of carrying out Signalling exchange with MSC, for example the LAU flow process.

As shown in Figure 3, UE is connected with MSC by VANC.VANC possesses the ability of Simulation with I u-CS/A interface, for example, and VANC configuration Iu-CS/A interface corresponding protocols stack.UE will communicate with MSC, at first sends message to VANC, and VANC can become the message conversion of receiving the signaling format on the Iu-CS/A interface, and sends to MSC, thereby finishes communicating by letter of UE and MSC.In like manner, VANC can give UE from the forwards that MSC receives.The LTE network is being as the exchange channels between UE and the IWF under this communication pattern.

In above-mentioned Organization Chart, be accomplished to the registration of VANC as UE after, the VANC of service UE need be registered to the binding relationship of UE-VANC among the HOSF (Handover Selection Function, switch addressing function).In the time of follow-up switching, HOSF receives the handoff request message that MME takes place, and according to the UE-VANC binding relationship of preserving, the handoff request forwards can be given the VANC of service UE, guarantees normally carrying out of whole switching flow.

Under the technical background of VoLGA, MSC is the professional anchor point of CS business, and after MSC received a beep-page message (MT Call), MSC was a LAI information according to the UE positional information of preserving, at described LAI area paging UE.Particularly, MSC sends beep-page message to the wireless access network element of described LAI correspondence, and described wireless access network element sends beep-page message to UE.In the ISR state of activation, UE may reside in the GERAN/UTRAN network, also might reside in the E-UTRAN network, if have only the wireless access network element (such as BSS/RNC) of GERAN/UTRAN network to receive the beep-page message that MSC sends, and VANC does not receive the beep-page message (VANC that does not comprise service UE in the access network elements of the LAI correspondence of MSC record) that MSC sends, then this moment can only be in the GERAN/UTRAN network paging UE, and can't be in the E-UTRAN network paging UE.That is to say that for the UE that resides in the E-UTRAN network, this beep-page message is inaccessible.

For example, under the scene that the foregoing description is described, when UE activated ISR in the GERAN/UTRAN network after, this moment, the UE band of position of MSC record was GERAN/UTRAN-LAI.Follow-up when UE turns back to the E-UTRAN network, MSC receives a beep-page message, and MSC is a GERAN/UTRAN-LAI information according to the UE positional information of preserving, at described LAI area paging UE.Particularly, MSC sends beep-page message to the wireless access network element of described LAI correspondence, and described wireless access network element sends beep-page message to UE.At this moment, the VANC (just comprising VANC in the access network elements of E-UTRAN-LAI correspondence) that does not comprise service UE in the access network elements of GERAN/UTRAN-LAI correspondence, then this moment can only be in the GERAN/UTRAN network paging UE, and can't be in the E-UTRAN network paging UE.Promptly for the UE that resides in the E-UTRAN network, MT Call is inaccessible.

Therefore, in embodiments of the present invention, in order further to realize may further comprise the steps CS business (mainly being called service): in the corresponding access network elements information in each LA zone of MSC, dispose HOSF information in advance.Like this, UE is activating between SGSN and the MME under the scene of ISR, after MSC receives beep-page message, beep-page message is transmitted to the VANC of service UE by HOSF, after the VANC of service UE receives described VoLGA beep-page message, trigger EPS network and the territory paging of 2G/3G grouping of network, thereby guarantee that the CS business also can realize in E-UTRAN.

The process that the VANC of service UE triggers EPS network and the territory paging of 2G/3G grouping of network mainly may further comprise the steps:

Described VANC sends to gateway with described VoLGA beep-page message with the form of packet;

Gateway triggers MME paging UE;

Reside in the beep-page message of the idle UE response MME transmission of E-UTRAN, the user plane bearer between foundation and the gateway;

The packet that gateway will comprise described beep-page message sends to described UE;

UE resolves described packet and obtains the circuit domain called paging.

As shown in Figure 4, be the networking schematic diagram that by HOSF beep-page message is transmitted to VANC in the embodiment of the invention.

Operator is configuration HOSF information in the corresponding access network elements information in each LA zone of MSC.From the angle of MSC, HOSF is exactly real access network elements, for example, and BSS/RNC.The quantity of HOSF can be a plurality of.

After MSC receives beep-page message, at the LA of current record area paging UE.Particularly, send beep-page message to current LA area relative access network elements, according to above-mentioned configuration, HOSF also will receive the beep-page message that MSC sends.

According to the description of VoLGA standard, the VANC of HOSF and service UE has binding relationship, after HOSF receives the beep-page message that MSC sends, this beep-page message is transmitted to the VANC of service UE.

Under the scene that ISR activates, VANC will trigger the PS paging of EPS network and 2G/3G network.

When concrete the application, if the VANC quantity of EPS network configuration is not a lot, each LA zone can dispose VANC information all in the EPS network.If VANC quantity is more, the HOSF information of each LA zone in can preferred disposition EPS network then.

HOSF can be positioned on the same physical entity with VANC when specific implementation.

As shown in Figure 5, be the flow chart that idle UE is realized the CS business in the embodiment of the invention.

Step 501.G-MSC (GATE WAY-MSC, mobile network gateway exchange) sends IAM (Initial Address Message, initial address message) and gives MSC.

Step 502a-502b.MSC is at the LA area paging UE of the LAI of current record correspondence.

Particularly, MSC sends beep-page message to current LA area relative access network elements, and the corresponding access network elements BSS/RNC of the LAI that preserves with current MSC in the GERAN/UTRAN network receives the beep-page message that MSC sends, and sends beep-page message to UE.

Step 503a-503b.HOSF receives the beep-page message that MSC sends, and then the VoLGA beep-page message is transmitted to the VANC of service UE.

Operator has disposed HOSF information in the corresponding access network elements information in each LA zone of MSC, like this, one or more HOSF also will receive the beep-page message that MSC sends.According to the definition of VoLGA standard, HOSF records the VANC-UE binding information, and promptly HOSF records the VANC information of service UE, for example the IP address information of the VANC of service UE.

The mode of configuration HOSF can be as follows:

If have only a HOSF in the whole EPS network, in this case, described HOSF preserves the service VANC information of all UE, can in the corresponding access network elements information in each LA zone of MSC, dispose HOSF information so, just can guarantee that HOSF receives the beep-page message of MSC, and can successfully described beep-page message be transmitted to the VANC of service UE;

If in the whole EPS network a plurality of HOSF are arranged, each HOSF has coverage separately, in this case, preserve the service VANC information relevant owing to can't determine concrete which HOSF, can in the corresponding access network elements information in each LA zone of MSC, dispose all HOSF information so with UE.Like this, after a plurality of HOSF received the beep-page message of MSC, wherein at least one HOSF preserved the service VANC information of UE, therefore can guarantee described beep-page message is transmitted to the VANC of service UE by this HOSF.

Step 504.VANC is transmitted to related with it P-GW (packet gateway) with the beep-page message that receives in the mode of IP packet, and P-GW is transmitted to S-GW (gateway) with this IP packet that carries beep-page message.

Under the step 505.ISR state of activation, S-GW sends downlink data notification message to SGSN according to the SGSN address of preserving.

After step 506a-506b.SGSN receives described downlink data notification message message, paging UE.Under the step 507ISR state of activation, S-GW sends downlink data notification message to MME according to the MME address of preserving.

Step 508a-508b.MME receives paging UE after the described downlink data notification message.

Under the scene that step 509.ISR activates, UE resides in the E-UTRAN network, and UE paging receiving message sends the EPS service request information to MME.

Step 510. is carried out user's face of transfer of data between UE and the S-GW and is set up flow process.

The IP packet that step 511.S-GW will comprise the beep-page message of MSC transmission is transmitted to UE.

After step 512.UE receives described IP packet, know that MSC sends beep-page message to it, promptly know the called service that the CS territory is arranged, UE replys Paging Response (page response) message to VANC.

Step 513.VANC transmits Paging Response message to MSC, simultaneously with the UE current position information for example VoLGA LAI offer MSC, described VoLGA LAI is by EPS local information (TAI for example, ECGI (Evolved Cell Global Identifier, the Cell Global Identity of evolution) mapping obtains.

VoLGA LAI information that step 514.MSC provides by VANC and the identification information of UE be TMSI for example, and whether UE is legal in checking, if illegal, then MSC sends connection refused message to VANC.

Step 515.VANC sends the RRC release message to UE, triggers UE and initiates the LAU flow process again one time.

Step 516.UE initiates the LAU flow process, is accomplished to the registration of MSC.

After step 517.UE was accomplished to the registration of MSC again, this call flow can be carried out between UE and MSC.

Need to prove the sequencing relation on above-mentioned steps 502a and step 503a are not free.

This shows, the method of the embodiment of the invention, by in the corresponding access network elements information in each LA zone of MSC, disposing HOSF information in advance, UE is being activated between SGSN and the MME under the scene of ISR, after MSC receives beep-page message, by HOSF beep-page message is transmitted to the VANC of service UE, after the VANC of service UE receives described VoLGA beep-page message, trigger EPS network and the territory paging of 2G/3G grouping of network, thereby guarantee that the CS business also can realize in E-UTRAN.

The foregoing description has been described the flow process of the beep-page message of UE response E-UTRAN network.The method of the embodiment of the invention can guarantee that equally GERAN/UTRAN network C S territory and PS territory beep-page message can reach for UE.Below this is elaborated respectively.

As shown in Figure 6, be that the embodiment of the invention is the another kind of flow chart that idle UE is realized the CS business in the embodiment of the invention.

Under this scene, UE resides in the GERAN/UTRAN network, and UE at first responds the beep-page message in GERAN/UTRAN network C S territory.

Step 601-step 608 is consistent with the step 501-508 among Fig. 5;

Step 609.UE at first receives CS Paging message at the GERAN/UTRAN network, and UE is from this beep-page message of CS domain response;

Step 610. call flow can be carried out between UE and MSC.

In embodiments of the present invention, UE at first receives CS Paging message at the GERAN/UTRAN network, and UE is from the described beep-page message of CS domain response; If follow-up UE receives PS Paging message at the GERAN/UTRAN network, respond described beep-page message, SGSN is transmitted to UE with the VoLGA beep-page message, owing to received CS Paging message before, this moment, UE abandoned described VoLGA beep-page message, did not do response and replied.

As shown in Figure 7, be that the embodiment of the invention is the another kind of flow chart that idle UE is realized the CS business in the embodiment of the invention.

Under this scene, UE resides in the GERAN/UTRAN network, and UE at first responds GERAN/UTRAN network PS field beep-page message.

Step 701-step 708. is consistent with the described step 501-508 of Fig. 5;

Step 709.UE at first receives PS Paging message at the GERAN/UTRAN network, responds described beep-page message.

Step 710. is carried out user's face of transfer of data between UE and the S-GW and is set up flow process.

The IP packet that step 711.S-GW will comprise the beep-page message of MSC transmission is transmitted to UE.

Step 712.UE receives described beep-page message, because the current GERAN/UTRAN network that is in of UE, this moment, UE selected from the beep-page message of the described MSC of CS domain response of GERAN/UTRAN network, both, send Paging Response message to 2G./3G RAN from the CS territory of GERAN/UTRAN network, follow-up 2G./3G RAN is transmitted to MSC with described CS Paging Response.

Step 713. call flow can be carried out between UE and MSC.

In embodiments of the present invention, UE at first receives PS Paging message at the GERAN/UTRAN network, and UE is from the described beep-page message of PS domain response; If follow-up UE receives CS Paging message at the GERAN/UTRAN network, this moment, UE abandoned CS Paging message, did not do response and replied.

One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, described storage medium, as: ROM/RAM, magnetic disc, CD etc.

The embodiment of the invention also provides a kind of subscriber equipment, and as shown in Figure 8, this subscriber equipment 800 comprises:

Location area information receiving element 801 is used for being in Idle state and during from first network insertion, second network, under the ISR state of activation, receiving the location area information of second network of current access at described subscriber equipment;

Memory cell 802, the location area information that is used to preserve current access second network, and the location area information of first network of preserving before keeping;

Upgrade trigger flow unit 803, when being used for outside the band of position of location area information correspondence that described subscriber equipment moves to the location area information of first network of preservation and second network, be triggered to the more new technological process of MSC.

In embodiments of the present invention, described first network can be the E-UTRAN network, and correspondingly, described second network is the GERAN/UTRAN network; Certainly, described first network also can be the GERAN/UTRAN network, and correspondingly, described second network is the E-UTRAN network.

Be that example is elaborated to embodiment of the invention subscriber equipment with first kind of situation below.

As shown in Figure 9, be the another kind of structural representation of embodiment of the invention subscriber equipment.

With embodiment illustrated in fig. 8 different be that in this embodiment, described subscriber equipment 900 also further comprises:

Remove registration timer 804, be used to trigger the go register flow path of described subscriber equipment initiation to VASN;

Message sink unit 805 is used at described subscriber equipment during from first network insertion, second network, receives the position that SGSN sends and upgrades response message;

Login state holding unit 806 is used for upgrading response message in described position and carries when being used to indicate the ISR information of ISR activation, makes described subscriber equipment keep GA-RC REGISTERED state.

In embodiments of the present invention, described login state holding unit 806 can make described subscriber equipment keep GA-RC REGISTERED state in several ways.

Such as, a kind of embodiment of described login state holding unit 806 comprises: timer start unit and timer stop element.Wherein: described timer start unit, be used for when described subscriber equipment with CS territory service Radio Resource entity when GERAN RR or UTRAN RRC transfer to GA-CSR or GA-RRC, start the described registration timer 804 that goes; Described timer stop element is used for stopping the described registration timer 804 that goes after described message sink unit 805 receives the ISR information indication ISR activation of described position renewal response message.

For another example, another embodiment of described login state holding unit 806 comprises: timer is forbidden the unit, be used for when described subscriber equipment with CS territory service Radio Resource entity when GERAN RR or UTRAN RRC transfer to GA-CSR or GA-RRC, the described registration timer 804 that goes of No starting, when described message sink unit 805 receives after described position upgrades ISR information indication ISR in the response message and activate, still select that No starting is described to remove registration timer 804, so that described subscriber equipment is not carried out the register flow path that goes to VANC.

For another example, another embodiment of described login state holding unit 806 comprises: duration is provided with unit and timer control unit.Wherein: described duration is provided with the unit, is used to be provided with the described timing of registration timer 804 that goes and is longer than under the ISR activation scenario, the timing length of the deexcitation ISR timer that described subscriber equipment is preserved; Described timer control unit, be used for when described subscriber equipment when the GERAN/UTRAN network returns the E-UTRAN network, the described registration timer 804 that goes is made zero.

The subscriber equipment of the embodiment of the invention, when connecting system changes, can keep the GA-RCREGISTERED state, thereby can reduce under the Idle state between owing to frequent switching working mode Signalling exchange load that cause and network based on the E-UTRAN network of VoLGA and traditional GERAN/UTRAN network.

The subscriber equipment of the embodiment of the invention under the ISR state of activation, during from E-UTRAN network insertion GERAN/UTRAN network, still keeps the related context of VoLGA mode of operation.And, between the TA of the RA of the GERAN/UTRAN network that is write down and E-UTRAN network, when mobile,, then do not trigger the mobile management flow process in grouping system territory if connecting system changes.When described subscriber equipment turns back to the E-UTRAN network from the GERAN/UTRAN network,, then do not trigger the flow process mutual with VANC if still be in the VANC TAI tabulation scope of preservation.

The embodiment of the invention also provides a kind of switching addressing function equipment, as shown in figure 10, is a kind of structural representation of this switching addressing function equipment.Comprise:

Message sink unit 901 is used to receive the beep-page message that MSC sends;

Message sending unit 902 is used for after described message sink unit 901 receives described beep-page message, sends the VoLGA beep-page message to the VANC of service UE.

Preferably, the information configuration of described switching addressing function equipment is in the corresponding access network elements information in each LA zone at MSC place.

The embodiment of the invention is switched addressing function equipment, can activate between SGSN and the MME under the scene of ISR at UE, the beep-page message that MSC is received is transmitted to the VANC of service UE, so that after the VANC of service UE receives beep-page message, trigger EPS network and the territory paging of 2G/3G grouping of network, thereby guarantee that the CS business also can realize in E-UTRAN.

More than the embodiment of the invention is described in detail, used embodiment herein the present invention set forth, the explanation of above embodiment just is used for help understanding method and apparatus of the present invention; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (16)

1. a method that realizes the Idle state saving signaling is characterized in that, comprising:

When free subscriber equipment during from first network insertion, second network, if ISR activates, then subscriber equipment is preserved the location area information of second network, and the location area information of first network of preserving before keeping;

If subscriber equipment moves to outside the band of position of location area information correspondence of the location area information of first network of preservation and second network, then be triggered to the more new technological process of mobile switching centre.

2. method according to claim 1 is characterized in that, described first network is the E-UTRAN network, and described second network is the GERAN/UTRAN network; Described method also comprises:

When free subscriber equipment during, receive the position that SGSN sends and upgrade response message from first network insertion, second network;

Carry the ISR information that is used to indicate the ISR activation in the response message if described position is upgraded, then subscriber equipment determines that ISR activates, and keeps the GA-RC login state.

3. method according to claim 2 is characterized in that, described method also comprises:

Subscriber equipment keeps the related context of VoLGA mode of operation, and described context comprises that VANC distributes to the tracking area identification VANC TAI list information of subscriber equipment and/or the Location Area Identification list information that mobile switching centre distributes to subscriber equipment.

4. method according to claim 2 is characterized in that, described subscriber equipment keeps the GA-RC login state to comprise:

When subscriber equipment inserts the GERAN/UTRAN network, when GA-CSR or GA-RRC transferred to GERAN RR or UTRAN RRC, subscriber equipment started and removes registration timer with Circuits System territory service Radio Resource entity;

Subscriber equipment receives after described position upgrades ISR information indication ISR in the response message and activate, and stops the described registration timer that goes.

5. method according to claim 2 is characterized in that, described subscriber equipment keeps the GA-RC login state to comprise:

The timing that preestablishes registration timer is longer than that subscriber equipment preserves periodically update the deexcitation ISR timer that timer duration and subscriber equipment under the ISR activation scenario preserve timing length and.

6. according to each described method of claim 2 to 5, it is characterized in that described method also comprises:

Addressing function information is switched in configuration in the access network elements information of each band of position correspondence of mobile switching centre in advance;

After mobile switching centre received called service information, pairing access network elements sent beep-page message to the current location zone;

After having disposed the access network elements that switches addressing function and receiving described beep-page message, according to the binding relationship that switches addressing function and the VANC of service-user equipment to the VANC of service-user equipment transmission VoLGA beep-page message;

After the VANC of service-user equipment receives described VoLGA beep-page message, trigger EPS network and the territory paging of 2G/3G grouping of network.

7. method according to claim 6 is characterized in that, the VANC of described service-user equipment triggers the EPS network and the territory paging of 2G/3G grouping of network comprises:

Described VANC sends to gateway with described VoLGA beep-page message with the form of packet;

Gateway triggers the MME calling user device;

Reside in the beep-page message of the free subscriber device responds MME transmission of E-UTRAN, the user plane bearer between foundation and the gateway;

The packet that gateway will comprise described beep-page message sends to described subscriber equipment;

Subscriber equipment is resolved described packet and is obtained the circuit domain called paging.

8. method according to claim 6 is characterized in that, described method also comprises:

After the subscriber equipment that resides in the GERAN/UTRAN network receives Circuits System territory beep-page message, respond described Circuits System territory beep-page message; If receive the VoLGA beep-page message, then abandon described VoLGA beep-page message;

After the subscriber equipment that resides in the GERAN/UTRAN network receives grouping system territory beep-page message, respond described grouping system territory beep-page message; If receive Circuits System territory beep-page message, then abandon described Circuits System territory beep-page message.

9. method according to claim 1 is characterized in that, described first network is the GERAN/UTRAN network, and described second network is the E-UTRAN network; Described method also comprises:

When free subscriber equipment during, receive the tracing section updating that MME sends and accept message from first network insertion, second network;

If described tracing section updating accepts to carry in the message ISR information that is used to indicate the ISR activation, then subscriber equipment determines that ISR activates.

10. a subscriber equipment is characterized in that, comprising:

The location area information receiving element is used for being in Idle state and during from first network insertion, second network, under the ISR state of activation, receiving the location area information of second network of current access at described subscriber equipment;

Memory cell, the location area information that is used to preserve current access second network, and the location area information of first network of preserving before keeping;

Upgrade the trigger flow unit, be used for when described subscriber equipment moves to outside the band of position of location area information correspondence of the location area information of first network of preservation and second network, being triggered to the more new technological process of mobile switching centre.

11. subscriber equipment according to claim 10 is characterized in that, described first network is the E-UTRAN network, and described second network is the GERAN/UTRAN network;

Described subscriber equipment also comprises:

Remove registration timer, be used to trigger the go register flow path of described subscriber equipment initiation to VANC;

The message sink unit is used at described subscriber equipment during from first network insertion, second network, receives the position that SGSN sends and upgrades response message;

The login state holding unit is used for upgrading response message in described position and carries when being used to indicate the ISR information of ISR activation, makes described subscriber equipment keep the GA-RC login state.

12. subscriber equipment according to claim 11 is characterized in that, described login state holding unit comprises:

The timer start unit, be used for when described subscriber equipment with Circuits System territory service Radio Resource entity when GERAN RR or UTRAN RRC transfer to GA-CSR or GA-RRC, start the described registration timer that goes;

The timer stop element is used for stopping the described registration timer that goes after described receiving element receives the ISR information indication ISR activation of described position renewal response message.

13. subscriber equipment according to claim 11 is characterized in that, described login state holding unit comprises:

Timer is forbidden the unit, be used for when described subscriber equipment with Circuits System territory service Radio Resource entity when GERAN RR or UTRAN RRC transfer to GA-CSR or GA-RRC, the described registration timer that goes of No starting, when described receiving element receives after described position upgrades ISR information indication ISR in the response message and activate, still select the described timer of No starting, so that described subscriber equipment is not carried out the register flow path that goes to VANC.

14. subscriber equipment according to claim 11 is characterized in that, described login state holding unit comprises:

Duration is provided with the unit, is used to be provided with the described timing of registration timer that goes and is longer than under the ISR activation scenario, the timing length of the deexcitation ISR timer that described subscriber equipment is preserved;

The timer control unit, be used for when described subscriber equipment when the GERAN/UTRAN network returns the E-UTRAN network, the described registration timer that goes is made zero.

15. one kind switches addressing function equipment, it is characterized in that, comprising:

The message sink unit is used to receive the beep-page message that mobile switching centre sends;

Message sending unit is used for after described message sink unit receives described beep-page message, sends the VoLGA beep-page message to the VANC of service-user equipment.

16. switching addressing function equipment according to claim 15 is characterized in that the information configuration of described switching addressing function equipment is in the access network elements information of each band of position correspondence at mobile switching centre place.

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