CN102273296A

CN102273296A - Processing method, communication device, communication system and user equipment for resource release

Info

Publication number: CN102273296A
Application number: CN2011800004384A
Authority: CN
Inventors: 陈中平; 闫学霞; 于益俊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2011-02-01
Filing date: 2011-02-01
Publication date: 2011-12-07
Anticipated expiration: 2031-02-01
Also published as: WO2011100887A2; CN102273296B; WO2011100887A3

Abstract

A processing method, a communication device, a communication system and a User Equipment (UE) for resource release are provided in the embodiments of the present invention. The method includes the following steps: receiving a registration request message sent by a UE; sending a first message including an indication about releasing the Circuit Switched CS resource of the UE to a first device, to make the first device notify a Mobile Switch Center/Visitor Location Register MSC/VLR to release the CS resource of the UE.

Description

Processing method, communication equipment, communication system and subscriber equipment that resource discharges

Technical field

The present invention relates to communication technical field, relate in particular to processing method, communication equipment, communication system and subscriber equipment that a kind of resource discharges.

Background technology

GPRS (Genreral Packet Radio Service, GPRS)/UMTS (Universal Mobile Telecommunications System, universal mobile telecommunications system) is 3GPP (The 3rd Generation Partnership Project, third generation partner plan) a kind of mobile communications network of tissue definition, comprise RAN (Radio Access Network, Radio Access Network) and CN (Core Network, core network) two parts.It can be GERAN (GSM EDGE Radio Access Network, GSM EDGE wireless access network) and/or UTRAN (UMTS Terrestrial radio access network) that RAN is divided into.Wherein, CN is from being divided into CS territory (Circuit Switched Domain, circuit commutative field) and PS territory (Packet Switched Domain, packet-switched domain) in logic.The main processed voice business in CS territory, Packet Service is mainly handled in the PS territory.The signaling plane controlled entity in CS territory is MSC (Mobile Switch Center, mobile switching centre) and/or VLR (Visitor Location Register, VLR Visitor Location Register), MSC/VLR; The signaling plane controlled entity in PS territory is SGSN (Serving GPRS Support Node, a Serving GPRS Support Node), and SGSN can link to each other by Gs interface with MSC/VLR.The above-mentioned GPRS/UMTS network architecture also can abbreviate the GERAN/UTRAN network architecture as.

Under the GERAN/UTRAN network architecture, UE (User Equipment, subscriber equipment) can be under the situation of network support, for example, network schemer I, promptly SGSN and MSC/VLR support Gs interface, by the register flow path of associating, be registered to the registration that is accomplished to circuit domain in the process of packet domain simultaneously.For example, UE finishes when SGSN registers at the routing area/location of initiating associating attachment flow or associating new technological process more, is accomplished to the registration of MSC/VLR by SGSN.In the process of combined registering, it is related to set up Gs between the SGSN of service UE and the MSC/VLR, and MSC/VLR stops to start the implicit detach timer.The separation indication release resource follow-up, that MSC/VLR sends by receiving SGSN.For example, in the time of the UE shutdown, UE sends and separates indication information to SGSN, and SGSN will separate indication by Gs interface and send to MSC/VLR, and MSC/VLR separates UE from circuit domain, promptly discharge the CS resource.

Along with the development of wireless broad band technology, in the leading superiority that keeps the 3GPP network, 3GPP will have formulated Long Term Evolution plan (LTE, Long Term Evolution) in the end of the year 2004.In the guidance of this evolution plan EPS network architecture (evolved packet system, the packet network of evolution) of having given a definition, this EPS network architecture is more flat than the GPRS/UMTS network architecture, and has only kept packet domain.Wherein, core net mainly comprises MME (Mobility Management Entity, mobile management entity), three logic function bodies of S-GW (Serving Gateway, gateway), PDN-GW (GatewayPacket Data Network Gateway, grouped data network gateway); Wireless access network is referred to as E-UTRAN (UMTS Terrestrial radio access network of Evolved UMTS Territorial Radio AccessNetwork evolution).The above-mentioned EPS network architecture can abbreviate the E-UTRAN network architecture as.

Under the E-UTRAN network architecture, in order to reuse existing C S business in the EPS network, 3GPP has proposed a kind ofly to be connected to the framework of CS domain core net by the EPS network, that is MME is connected to MSC/VLR by the SGs interface.At this moment, UE is registered to the registration that is accomplished to circuit domain in the process of packet domain simultaneously by the register flow path of associating.For example, UE finishes in the MME registration in the tracking area/location area updating flow process of packet domain initiation associating attachment flow or associating, is accomplished to the registration of MSC/VLR by MME.In the process of combined registering, it is related to set up SGs between the MME of service UE and the MSC/VLR, and MSC/VLR stops to start the implicit detach timer.The separation indication release resource follow-up, that MSC/VLR sends by accepting MME.For example, in the time of the UE shutdown, UE sends and separates indication information to MME, and MME will separate indication by the SGs interface and send to MSC/VLR, and MSC/VLR separates UE from circuit domain, promptly discharge the CS resource.

If UE finishes the registration at Old SGSN/MME (old SGSN/MME) and MSC/VLR by associated update flow process (for example, the routing area/location of associating more tracking area/location area updating the flow process of new technological process or associating).When UE initiates register flow path to New MME (new MME), wherein but indication network is not its establishment SGs association; Perhaps UE initiates register flow path and the SGs association is created in request to New MME, but New MME does not support the SGs interface, New MME all fail with MSC/VLR between to set up SGs related, New MME can't discharge the CS resource on the MSC/VLR like this.

Summary of the invention

Processing method, communication equipment, communication system and subscriber equipment that the embodiment of the invention provides a kind of resource to discharge when not setting up SGs between MME and the MSC/VLR when related, also can discharge the CS resource of UE on the MSC/VLR.

The processing method that a kind of resource discharges, described method comprises:

Receive the login request message that user equipment (UE) sends;

Send first message to first equipment, described first message comprises the indication of the CS resource that discharges described UE, so that the circuit switching (CS) resource that described first equipment notifies described mobile switching center MSC/VLR to discharge described UE.

The method that a kind of resource discharges comprises:

Receive the registration that new MME sends and accept message, described registration accepts to comprise in the message indication of the packet domain EPS registration of combined registering or evolution;

Send the 3rd message to second equipment, comprise circuit switching (CS) in described the 3rd message and separate indication, so that described second equipment sends first message to HSS/HLR, so that described HSS/HLR notice mobile switching center MSC/VLR discharges the CS resource of described UE, comprise the indication of the CS resource that discharges described UE in described first message.

A kind of communication equipment comprises:

Receiving element is used to receive the login request message that user equipment (UE) sends;

Transmitting element, be used for sending first message to first equipment, comprise the indication of the circuit switching (CS) resource that discharges described UE in described first message, so that the CS resource that described first equipment notifies described mobile switching center MSC/VLR to discharge described UE.

A kind of communication system comprises:

Mobile management entity receives the login request message that user equipment (UE) sends, and sends first message to first equipment, comprises the indication of the CS resource that discharges described UE in described first message;

Described first equipment is used to receive first message that described mobile management entity sends, the circuit switching (CS) resource of notifying described mobile switching center MSC/VLR to discharge described UE.

A kind of subscriber equipment comprises:

Receiving element is used to receive the registration that new MME sends and accepts message, and described registration accepts to comprise in the message indication of the packet domain EPS registration of combined registering or evolution;

Transmitting element, be used for sending the 3rd message to second equipment, comprise circuit switching (CS) in described the 3rd message and separate indication, so that described second equipment sends first message to HSS/HLR, so that described HSS/HLR notice mobile switching center MSC/VLR discharges the CS resource of described UE, comprise the indication of the CS resource that discharges described UE in described first message.

A kind of communication equipment comprises:

Receiving element is used to receive the 3rd message that user equipment (UE) sends, and comprises circuit switching (CS) in described the 3rd message and separates indication;

Transmitting element is used to send first message to HSS/HLR, so that described HSS/HLR notice mobile switching center MSC/VLR discharges the CS resource of described UE, comprises the indication of the CS resource that discharges described UE in described first message.

Processing method, communication equipment, communication system and subscriber equipment that the resource that the embodiment of the invention provides discharges, if it is related not set up SGs between MME and the MSC/VLR, then can trigger the circuit switching (CS) resource that MSC/VLR discharges UE, thereby avoid the waste of the professional network of relation resource of CS by first equipment notice MSC/VLR.

Description of drawings

Fig. 1 provides a kind of flow chart of processing method of resource release for the embodiment of the invention;

Fig. 2 provides the flow chart of the processing method of another kind of resource release for the embodiment of the invention;

Fig. 3 provides the flow chart of the processing method of another resource release for the embodiment of the invention;

Fig. 4 provides also a kind of flow chart of processing method of resource release for the embodiment of the invention;

Fig. 5 provides the flow chart of the processing method of another resource release for the embodiment of the invention;

Fig. 6 provides the also flow chart of the processing method of another resource release for the embodiment of the invention;

Fig. 7 provides the flow chart of the processing method of another resource release again for the embodiment of the invention;

The structure chart of a kind of communication equipment that Fig. 8 provides for the embodiment of the invention;

The structure chart of a kind of communication system that Fig. 9 provides for the embodiment of the invention;

The structure chart of a kind of subscriber equipment that Figure 10 provides for the embodiment of the invention;

The structure chart of a kind of communication equipment that Figure 11 provides for the embodiment of the invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.

As shown in Figure 1, the processing method that the embodiment of the invention provides a kind of resource to discharge, this method comprises the steps:

102, MME receives the login request message that user equipment (UE) sends;

104, MME sends first message to first equipment, comprises the indication of the circuit switching (CS) resource that discharges described UE in described first message, so that described first equipment notice MSC/VLR discharges the CS resource of described UE.

In embodiments of the present invention, so that described first equipment notice MSC/VLR discharges the circuit switching (CS) resource of described UE comprises:

After first equipment receives first message, send second message, to trigger the circuit switching (CS) resource that MSC/VLR discharges described UE to MSC/VLR.

In one embodiment of the invention, indicate associated update/registration in the login request message that the described UE that MME receives sends, and this MME supports associated update/register flow path, promptly, register requirement according to UE, MME can to set up SGs related with MSC/VLR, and MME does not send described first message to first equipment so.If it is related, concrete not set up SGs between MME and the MSC/VLR, for example, do not indicate associated update/registration in the login request message that the described UE that MME receives sends; Perhaps indicate associated update/registration in the login request message that the described UE that receives of MME sends, but this MME does not support associated update/register flow path (CS territory unavailable-" CS domain available ") in other words, and then MME sends described first message to first equipment.

In embodiments of the present invention, MME supports associated update/register flow path can be regarded as MME and supports CSFB (Circuit Switched fallback, circuit switching fall-back) or SMS over SGs (short message passes through SGs).MME does not support associated update/register flow path can be regarded as MME and does not support CSFB or SMSover SGs.Unsupported reason can be that MME does not dispose SGs interface etc.

Further, in another one embodiment of the present invention, MME can also be according to default trigger condition to described first message of first equipment.

In another one embodiment of the present invention, the default trigger condition of described basis comprises at least a in the following manner:

Operator's configuration;

Described UE is the data type terminal;

Described UE supports the IMS voice for sound-type terminal and the current network of supporting IMS;

It is related that old SGSN/MME and MSC/VLR establish Gs/SGs;

When Idle state saving signaling ISR un-activation.

In another one embodiment of the present invention, confirm that described old SGSN/MME and MSC/VLR establish the related method of Gs/SGs and comprise in the following mode at least one:

Receive when comprising interim mobile signatory mark TMSI information in described TAU Request or the Attach Request message, it is related to confirm that old SGSN/MME and MSC/VLR establish Gs/SGs; Perhaps,

When including the information of creating the Gs/SGs association from the UE related context that old SGSN/MME obtains, it is related that affirmation Old SGSN/MME and MSC/VLR establish Gs/SGs,

The information of wherein said establishment Gs/SGs association comprises: MSC/VLR information, TMSI information or Gs/SGs related information.

In another one embodiment of the present invention, when described first equipment is old SGSN/MME, comprise in first message whether available whether new MME support CS business the indication information of the indication information of SGs interface or described new MME belonging network.

In another one embodiment of the present invention, send described first message to old SGSN/MME and comprise:

In tracking area update TAU process, send context to old SGSN/MME and confirm Context Ack message; Perhaps,

In switching the Handover process, send to old SGSN/MME and to transmit the response Forward Relocation Response message or transmit to reset and finish notice Forward Relocation Complete Notification message reset.

In another one embodiment of the present invention, after first equipment receives described first message, send second message, comprising to moving exchanging center MSC/VLR Visitor Location Register VLR:

Described first equipment is confirming that described old SGSN/MME and MSC/VLR establish Gs/SGs when related, send second message to MSC/VLR defaultly; Perhaps,

Described first equipment is confirming that described old SGSN/MME and MSC/VLR establish Gs/SGs when related, and described old MME/SGSN basis is preset trigger condition and sent second message to MSC/VLR.

In another one embodiment of the present invention, when described first equipment was old SGSN/MME, described default trigger condition comprised at least one in the following mode:

Confirm ISR and un-activation;

Receive new MME and do not support the indication information of SGs interface; With

Receive the professional disabled indication information of CS of new MME belonging network.

In embodiments of the present invention, this MSC/VLR is this MSC/VLR that serves this UE, discharges the CS resource of described UE, comprising: delete the UE context on this MSC/VLR.

In another one embodiment of the present invention, this MME is the MME of this UE of current service, also can be called new MME, new side MME or target MME etc., old SGSN/MME also can be called source SGSN/MME or old side SGSN/MME for serving before the SGSN/MME of this UE.

In embodiments of the present invention, first equipment can be HSS/HLR, also can be old SGSN/MME.Login request message can be to adhere to request (Attach Request) message, also can be tracing section updating request (TAU Request) message, login request message can also be the detach request message that UE sends, and comprising described UE in the described detach request message need be from the indication of CS network detach etc.The circuit switching (CS) resource of described UE comprises the context of described UE.Wherein first message can be to upgrade position requests Update Location Request message.In another one embodiment of the present invention, this second message can be canceling position request Cancel Location Request message.

The method that the embodiment of the invention provides if it is related not set up SGs between new MME and the MSC/VLR, then can triggers the circuit switching (CS) resource that MSC/VLR discharges UE by first equipment notice MSC/VLR, thereby avoid the waste of the professional network of relation resource of CS.

As shown in Figure 2, optionally, the processing method that the embodiment of the invention provides another kind of resource to discharge, this method comprises the steps:

202, UE receives the registration that new MME sends and accepts message, and described registration accepts to comprise in the message indication of combined registering or EPS registration;

204, UE sends the 3rd message to second equipment, comprise CS in described the 3rd message and separate indication, so that described second equipment sends first message to HSS/HLR, so that described HSS/HLR notice mobile switching center MSC/VLR discharges the circuit switching (CS) resource of described UE, comprise the indication of the CS resource that discharges described UE in described first message.

In one embodiment of the invention, so that described HSS/HLR notice mobile switching center MSC/VLR discharges the circuit switching (CS) resource of described UE comprises:

After HSS/HLR receives described first message, send second message, to trigger the circuit switching (CS) resource that described MSC/VLR discharges described UE to moving exchanging center MSC/VLR Visitor Location Register VLR.

Wherein, the MSC/VLR circuit switching (CS) resource that discharges described UE comprises: deletion MSC/VLR goes up the context of this UE.

In another one embodiment of the present invention, UE receives the registration of new MME transmission and accepts message, and described registration accepts to comprise in the message indication of combined registering or EPS registration, comprising:

UE receives and adhering to that new MME sends accepts message, and described adhering to accepted to comprise in the message described type of attachment and adhere to or EPS adheres to for uniting; Perhaps

UE receives the area update of new MME transmission and accepts message, and it is that associated update or EPS upgrade that described area update accepts to comprise in the message described tracing section updating type.

In another one embodiment of the present invention, UE determines that current network do not support the CS business, and determines resident current network, sends the 3rd message to described second equipment.

In another one embodiment of the present invention, UE determines that resident current network comprises at least one in the following manner:

The type of determining described UE is a data type;

Determine that described UE supports the IMS voice for sound-type terminal and the current network of supporting IMS; Perhaps

Determine that described UE has been accomplished to the registration of CS.

In one embodiment of the invention, described first message is notice request Notify Request message, described second message is canceling position request Cancel Location Request message, described the 3rd message is detach request Detach Request message, and described CS separates indication and represents by type of separation Detach type in the described Detach Request message is designated as IMSI detach.

In another one embodiment of the present invention, second equipment can be new MME, also can be P-CSCF (Proxy-Call Session Control Function entity).

The method that the embodiment of the invention provides if it is related not set up SGs between MME and the MSC/VLR, then can triggers the circuit switching (CS) resource that MSC/VLR discharges UE by first equipment notice MSC/VLR, thereby avoid the waste of the professional network of relation resource of CS.

Introduce processing method and the device that a kind of resource discharges in detail below in conjunction with concrete application scenarios.For example, the embodiment of the invention provides a kind of application scenarios to be: UE initiates register flow path (for example, tracking area update flow process or attachment flow) to New MME (new MME).In addition, before this UE by before associated update flow process (for example, the routing area/location of associating more tracking area/location area updating the flow process of new technological process or associating) finish registration at Old SGSN/MME (old SGSN/MME) and MSC/VLR.

Among the embodiment as shown in Figure 3, New MME triggers HSS/HLR and sends message to MSC/VLR, thereby triggers the professional network of relation resource of CS that MSC/VLR discharges UE.Introduce the processing method that a kind of resource discharges below in detail, comprising:

301, UE sends login request message to New MME, and described login request message can be tracking area update request message (TAU Request) or Attach Request message (Attach Request).Specific as follows:

1) UE sends tracking area update request message-TAU Request to New MME.Updating type in the described TAU Request message-" EPS Update type " is designated as associated update.Specifically can be that " EPS Update type " is designated as " combined TA/LA updating " or " combined TA/LA updating with IMSI attach ".Perhaps,

2) request message-TAU Request is to New MME for UE transmission tracking area update, and the updating type in the described TAU Reques message-" EPS Update type " is designated as tracking area update.Specifically can be that " EPS Update type " is designated as " TA updating ".Perhaps,

3) UE sends Attach Request message-Attach Request to New MME.Type of attachment in the described Attach Request message-" EPS attach type " is designated as EPS and adheres to.Specifically can be that " EPS attach type " is designated as " EPS Attach ".Perhaps,

4) UE sends Attach Request message-Attach Request to New MME.Type of attachment in the described Attach Request message-" EPS attach type " is designated as to unite and adheres to.Specifically can be that " EPS attach type " is designated as " combined EPS/IMSI attach ".

When " EPS Update type " is designated as associated update or EPS attach type " be designated as to unite and adhere to, mean that UE request network is its establishment SGs association.

302, New MME sends first message of the indication include the CS resource that discharges UE to HSS/HLR, sends second message to indicate described HSS/HLR to the MSC/VLR of described service UE, discharges the CS resource of described UE with the MSC/VLR that triggers described service UE.

For example, New MME sends first message (for example upgrading location request message-Update Location Request message) to HSS/HLR, HSS/HLR sends second message (for example canceling position request Cancel Location Request message) to MSC/VLR with indication, to trigger the CS resource (the relevant context of described UE that deletion is preserved) that MSC/VLR discharges described UE.

Particularly, the indication information that comprises the CS resource that discharges UE in the described Update Location Request message.The representation of the indication information of the CS resource of described release UE comprises: the existing cell " ULR Flags " in the described Update Location Request message is provided with a bit (bit), perhaps adopt a specific cell, for example " CSrelease Indicator " in the described Update Location Request message.

In the embodiment of the invention, indicate associated update/registration in the login request message that the described UE that New MME receives in the above-mentioned steps 301 sends, and this New MME supports associated update/register flow path, promptly, ask according to UE, New MME can to set up SGs related with MSC/VLR, and New MME does not send described first message to first equipment so.If it is related, concrete not set up SGs between New MME and the MSC/VLR, for example, do not indicate associated update/registration in the login request message that the described UE that New MME receives sends; Perhaps indicate associated update/registration in the login request message that the described UE that receives of New MME sends, but this New MME does not support associated update/register flow path (CS territory unavailable-" CS domain available ") in other words, and then New MME sends described first message to first equipment.Perhaps, at this moment, New MME also can be according to default trigger condition to described first message of described first equipment.Wherein, comprise at least a in the following manner according to default trigger condition to described first message of described first equipment:

Trigger condition one, operator's configuration.For example, operator can confirm that UE switches/mobile coming from the GERAN/UTRAN network of network schemer I by configuring MME, and MME sends described first message to first equipment.Concrete, a kind of affirmation mode can be, MME carries out this locality configuration to PLMN network of network pattern information on MME, when receiving the described login request message that UE sends, know that by the identification information in the login request message PLMN information (comprises PLMN ID in the identification information, be the PLMN identification information), can determine the network schemer information of PLMN network correspondence then, thereby determine whether to send described first message to first equipment.

When trigger condition two, New MME affirmation ISR (Idle mode Signalling Reduction, Idle state saving signaling) un-activation, New MME sends above-mentioned first message to HSS/HLR.If activating, ISR means that UE can keep having set up the Gs association between login state Old SGSN and the MSC/VLR at Old SGSN and New MME simultaneously, then can not discharge this association this moment.That is, activating the Gs association that ISR sets up before meaning need be held, otherwise it is inconsistent the state of UE and network to occur, influences also problem experience.So when ISR was unactivated, New MME can send above-mentioned first message to HSS/HLR.

Trigger condition three, New MME confirm that UE is the data type terminal.The affirmation mode is, in the step 301, UE comprises " Voice domain preference and UE ' s usage setting " (the use setting of voice domain preference and subscriber equipment) in TAU Request that New MME sends or Attach Request message." Voice domain preference and UE ' s usage setting " is divided into " UE ' susage setting " (use setting of subscriber equipment) and " Voice domain preference for E-UTRAN " (the voice domain preference under the E-UTRAN system) two parts again.If " UE ' s usage setting " is set to " Data centric " (is the center with the data type), then New MME confirms that UE is the data type terminal.When adopting this strategy 1, New MME sends above-mentioned first message to HSS/HLR after confirming that UE is the data type terminal.

Trigger condition four, New MME confirm that UE supports the IMS voice for sound-type terminal and the current network of supporting IMS.The affirmation mode is, in the step 301, UE comprises " Voice domain preference and UE ' s usagesetting " (the use setting of voice domain preference and subscriber equipment) in TAU Request that New MME sends or Attach Request message." Voice domain preference and UE ' s usage setting " is divided into " UE ' s usage setting (the use setting of subscriber equipment) " and " Voice domain preference for E-UTRAN (the voice domain preference under the E-UTRAN system) " two parts again.If " UE ' s usage setting " is set to " Voice centric (is the center with the sound-type) ", MME confirms that UE is the sound-type terminal; " Voice domain preference for E-UTRAN " is set to " IMS PS Voice only (only using the IMS packet voice) " or " CS voice preferred; IMS PS Voice as secondary (the circuit domain voice are preferred; the IMS packet voice takes second place) " or " IMS PS voice preferred; CS Voice as secondary (the IMS packet voice is preferred; the circuit domain voice take second place) ", and New MME confirms that UE supports the IMS voice.New MME affirmation service network supports that also IMS voice (IMS voice over PS session is supported supports the IMS voice) can be by local configuration.When adopting this strategy 2, New MME sends above-mentioned first message to HSS/HLR after confirming that UE is for the sound-type terminal and current network support IMS voice of supporting IMS.

It is related that trigger condition five, New MME confirm whether the old SGSN/MME and the MSC/VLR of described service UE establish Gs/SGs.If MME confirms to finish associated update/registration at old SGSN/MME before the UE, that is it is related to confirm that the old SGSN/MME and the MSC/VLR of described service UE establish Gs/SGs, and then MME sends the above-mentioned first information to HSS/HLR.

Particularly, above-mentioned affirmation Old SGSN/MME and the MSC/VLR of described service UE whether establish the related mode of Gs/SGs can adopt following any one:

I) in the step 301, UE (for example comprises indication information in TAU Request that New MME sends or Attach Request message, comprise TMSI information TMSI-Temporary Mobile Subscriber Identity in the described message, interim mobile signatory mark), this indication information is used to indicate UE to finish associated update/registration.Comprise described TMSI information when New MME receives in described TAU Request or the Attach Request message, it is related to confirm that then the Old SGSN/MME and the MSC/VLR of described service UE establish Gs/SGs.

Ii) to know from the UE related context that Old SGSN/MME obtains whether the Old SGSN/MME and the MSC/VLR of described service UE establish Gs/SGs related for New MME.Particularly, if include in the UE related context create the Gs/SGs association information (for example, MSC/VLR information, TMSI information, Gs/SGs related information (Gs/SGs association is set to Gs-ASSOCIATED/SGs-ASSOCIATED) etc.), then New MME can to confirm that the Old SGSN/MME and the MSC/VLR of described service UE establish Gs/SGs related.

Iii) do not get rid of New MME here and confirm that by alternate manner UE has created the Gs/SGs association, that is it is related to confirm whether the Old SGSN/MME and the MSC/VLR of described service UE establish Gs/SGs.

Need to prove except above-mentioned listed preset strategy, the present invention does not get rid of according to other policy information decision-makings New MME whether send the above-mentioned first information to HSS/HLR.

303, after HSS/HLR receives first message of the above-mentioned indication information that includes the CS resource that discharges UE, the MSC/VLR information (MSC/VLR address information-MSC/VLR Number) relevant according to the described UE that preserves sends canceling position request Cancel Location Request message to the MSC/VLR of the described UE of service.

When UE after MSC succeeds in registration, the MSC/VLR information that MSC is relevant with described UE sends to HSS/HLR, this moment, HSS/HLR preserved the relevant MSC/VLR information of described UE.

304, the MSC/VLR of the described UE of described service receives the Cancel LocationRequest message that HSS/HLR sends, and discharges the CS resource of described UE, that is, and and the context that the described UE that deletion is preserved is relevant.Afterwards, return Cancel Location Answer message to HSS/HLR.

305, HSS/HLR sends Update Location Answer message to New MME.

306, New MME returns registration to UE and accepts message, for example, adheres to acceptance-Attach Accept/ tracking area update and accepts TAU Accept message.

Among the embodiment as shown in Figure 3, when not setting up related and MSC/VLR service UE of SGs between the MSC/VLR of the MME of service UE and service UE and stopped the implicit detach timer,, New MME sends the professional network of relation resource of CS that MSC/VLR that message realizes triggering this service UE discharges UE to the MSC/VLR of service UE thereby triggering HSS/HLR.

Among the embodiment as shown in Figure 4, UE triggers HSS/HLR by New MME and sends message to the MSC/VLR of service UE, thereby triggers the professional network of relation resource of CS of the MSC/VLR release UE of this service UE.Introduce the processing method that a kind of resource discharges below in detail, comprising:

401, UE sends login request message to New MME.This step is identical with middle step 301 embodiment illustrated in fig. 3, does not repeat them here, can be referring to the associated description of step 301 in embodiment illustrated in fig. 3.

402, New MME sends to HSS/HLR and upgrades position requests-Update Location Request message.

403, HSS/HLR returns to New MME and upgrades position answer-Update Location Answer message.

404, New MME returns registration to UE and accepts message, and it can be that tracking area update is accepted (TAU Accept) or adhered to acceptance (Attach Accept) message that message is accepted in described registration.Specific as follows:

1) New MME sends tracking area update and accepts message-TAU Accept to UE.Cell in the described TAUAccept message " renewal result "-" EPS update result " is designated as tracking area update.Specifically can be that " EPS Update type " is designated as " TA updated " or " TA updated and ISR activated ".Perhaps,

2) New MME sends tracking area update and accepts message-TAU Accept to UE.Upgrade result-" EPS update result " in the described TAUAccept message and be designated as associated update.Specifically can be that " EPS Update type " is designated as " combined TA/LA updated " or " ccombined TA/LA updated and ISR activated ".Perhaps,

3) New MME sends to adhere to and accepts message-Attach Accept to UE.Adhering to result-" EPS attach result " in the described Attach Accept message is designated as EPS and adheres to.Specifically can be that " EPSattach result " is designated as " EPS only ".Perhaps,

4) New MME sends to adhere to and accepts message-Attach Accept to UE.Adhering to result-" EPS attach result " in the described Attach Accept message is designated as to unite and adheres to.Specifically can be that " EPSattach result " is designated as " combined EPS/IMSI attach ".

405, UE sends and to include the 3rd message that CS separates indication to New MME, and it will no longer insert CS indication network, that is, indication network UE need separate from CS.Specifically mode can be, UE sends detach request-Detach Request message to MME, and type of separation in the message-" Detach type " is designated as CS to be separated, that is, " Detach type " is designated as " IMSI detach ".

Need to prove that UE can be following a kind of situation to the trigger condition that New MME sends above-mentioned CS separation indication:

At first, described UE confirms that current E-UTRAN network do not support the CS business.For example, in above-mentioned steps 401 and 404, if " EPS Update type " is designated as associated update in the step 401, and " EPS Update result " is designated as tracking area update in the step 4, and entrained cell in step 4 message " EMM cause " is designated as " #18 (CS domain not available) ", that is, UE confirms that current E-UTRAN network do not support the CS business; Perhaps as described in the step 401,404, if " EPSattach type " is designated as to unite and adheres in the step 401, and " EPS attach result " is designated as EPS and adheres in the step 404, and EMM cause is designated as " #18 (CS domain not available) " in the step 404.

Then, it is constant that UE confirms to keep current service network (E-UTRAN), rather than gravity treatment is resident to the GERAN/UTRAN sub-district, that is, select to reside in described E-UTRAN network.Confirm that keeping the constant principle of current service network (E-UTRAN) can be:

I) UE confirms that type is a data type.The affirmation mode is that when being set to " Data centric ", UE is a data type as " UE ' s usage setting ".Perhaps,

Ii) UE confirms as sound-type terminal and the current network of supporting IMS and supports the IMS voice.The affirmation mode is, " UE ' s usage setting " is set to " Voice centric ", " Voice domain preference for E-UTRAN " is set to " IMS PS Voice only " or " CS voice preferred; IMS PS Voice as secondary " or " IMS PS voice preferred, CS Voice as secondary ".In addition, confirm the mode of network support IMS voice, step 404 registration receives in the message carries cell " IMS Voice over PS session supported ", that is, and and current service network support IMS voice.Or the like.

Finally, if UE confirms that UE can send the 3rd message to New MME so by combined registering/more new technological process is accomplished to the registration of CS before, it will no longer insert CS indication network.

The embodiment of the invention triggers UE although not exclusively and sends the 3rd message that the above-mentioned CS of including separates indication to New MME.

406, after New MME receives the 3rd message that includes CS separation indication of UE transmission, the affirmation current network is not supported the CS business, for example, New MME does not dispose the SGs interface, can't be mutual with MSC/VLR, then New MME separates indication sends first message from the indication information that includes the CS resource that discharges UE to HSS/HLR according to described CS, to indicate described HSS/HLR to send second message, discharge the circuit switching (CS) resource of described UE with the MSC/VLR that triggers described service UE to the moving exchanging center MSC/VLR of described service-user equipment UE.

For example, New MME sends notice request-Notify Request message to HSS/HLR, sends canceling position request Cancel Location Request message to indicate described HSS/HLR to the MSC/VLR of described service UE.Wherein, carry the indication information of the CS resource that discharges UE in the described Notify Request message.The representation of the indication information of the CS resource of described release UE can be: the representation of the indication information of the CS resource of described release UE comprises: the existing cell " ULR Flags " in the described Notify Request message is provided with a bit (bit), perhaps adopts specific cell in the described Notify Request message.

407, after HSS/HLR receives first message of the above-mentioned indication information that includes the CS resource that discharges UE, the MSC/VLR information (MSC/VLR address information-MSC/VLR Number) relevant according to the described UE that preserves sends canceling position request Cancel Location Request message to the MSC/VLR of the described UE of service.

408, the MSC/VLR of the described UE of described service receives the Cancel LocationRequest message that HSS/HLR sends, and discharges the CS resource of described UE, that is, and and the context that the described UE that deletion is preserved is relevant.Afterwards, return Cancel Location Answer message to HSS/HLR.

409, HSS/HLR sends notice to New MME and answers Notify Answer message.

410, New MME returns the CS separation to UE and accepts IMSI Detach Accept message.

Among the embodiment as shown in Figure 4, when not setting up related and MSC/VLR service UE of SGs between the MSC/VLR of the MME of service UE and service UE and stopped the implicit detach timer, UE triggers HSS/HLR by New MME and sends message to the MSC/VLR of service UE, thereby realizes that the MSC/VLR of this service UE of triggering discharges the professional network of relation resource of CS of UE.

Among the embodiment as shown in Figure 5, UE triggers HSS/HLR by P-CSCF and sends message to the MSC/VLR of service UE, thereby triggers the professional network of relation resource of CS of the MSC/VLR release UE of this service UE.Introduce the processing method that a kind of resource discharges below in detail, comprising:

Step 501-504 is identical with step 401-404 among the embodiment as shown in Figure 4.

505, UE finishes the registration at IMS.

506, UE sends the 3rd message that includes CS separation indication and controls network element P-CSCF to IMS, and it will no longer insert CS indication network, that is, indication network need separate from CS.For example, UE sends detach request-Detach Request message to P-CSCF, and type of separation in the message-" Detach type " is designated as CS to be separated, that is, " Detach type " is designated as " IMSI detach ".

507, P-CSCF separates indication according to the CS that the UE that receives sends, P-CSCF sends first message of the indication information that includes the CS resource that discharges UE to HSS/HLR, to indicate described HSS/HLR to send second message, discharge the circuit switching (CS) resource of described UE with the MSC/VLR that triggers described service UE to the moving exchanging center MSC/VLR of described service-user equipment UE.

For example, P-CSCF sends notice request-Notify Request message to HSS/HLR, sends message to discharge the relevant CS resource of UE to indicate described HSS/HLR to send canceling position request Caneel Location Request message message trigger HSS/HLR to the MSC/VLR of described service UE to the MSC/VLR of service UE.

508, after HSS/HLR receives first message of the above-mentioned indication information that includes the CS resource that discharges UE, the MSC/VLR information (MSC/VLR address information-MSC/VLR Number) relevant according to the described UE that preserves sends canceling position request Cancel Location Request message to the MSC/VLR of the described UE of service.

509, the MSC/VLR of the described UE of described service receives the Cancel Location Request message that HSS/HLR sends, and discharges the CS resource of described UE, that is, and and the context that the described UE that deletion is preserved is relevant.Afterwards, return Cancel Location Answer message to HSS/HLR.

510, HSS/HLR answers Notify Answer message to sending the P-CSCF notice.

511, P-CS CF returns the CS separation to UE and accepts IMSI Detach Accept message.

Need to prove that above-mentioned P-CSCF can also replace with other application layer entity.

Among the embodiment as shown in Figure 5, when not setting up related and MSC/VLR service UE of SGs between the MSC/VLR of the MME of service UE and service UE and stopped the implicit detach timer, UE triggers HSS/HLR by P-CSCF and sends message to the MSC/VLR of service UE, thereby realizes that the MSC/VLR of this service UE of triggering discharges the professional network of relation resource of CS of UE.

Among the embodiment as shown in Figure 6, in tracking area update TAU process, old SGSN/MME sends message to the MSC/VLR of service UE, thereby triggers the professional network of relation resource of CS of the MSC/VLR release UE of this service UE.Introduce the processing method that a kind of resource discharges below in detail, comprising:

601, UE sends tracing section updating request message (TAU Request) to New MME.Tracking area/location area updating request that updating type in the message (Update Type) can be designated as associating (for example is designated as combined Tracking Area/Location Area Update Request, perhaps a combined Tracking Area/Location Area Update with IMSI attach Request), perhaps tracing section updating (TA updating).

602, New MME sends context request message (Context Request) to Old SGSN/MME.

603, Old SGSN/MME sends context response information (Context Response) to New MME.

604, New MME sends context acknowledgement message (Context Ack) to Old SGSN/MME.Comprise in the described Context Ack message whether described New MME supports the indication information of SGs interface, that is whether the indicating target side can create the SGs association, the indication information whether the CS business of perhaps described new MME belonging network is available, that is whether the indicating target network supports the CS business.

Above-mentioned indication information can adopt following manifestation mode:

1) described indication information can be cell " SGs Supported ", and described cell value can indicate UE whether can create the SGs association in target side.Value is that 1 expression can be for UE creates the SGs association, and the CS business is available; Value is that 0 expression can't be for UE creates the SGs association, and the CS business is unavailable.The embodiment of the invention does not limit other modes and is used to refer to UE and whether can creates the SGs association in target side.

2) described indication information can be cell " CS domain available ", and whether described cell value can indicate the CS business available.Value is that 1 expression CS business is available; Value is that 0 expression CS business is unavailable.Whether the embodiment of the invention to be used to refer to the CS business available if not limiting other modes.

New MME is default to provide described indication information to Old SGSN/MME, perhaps under some conditions, NewMME optionally provides described indication information to Old SGSN/MME, these conditions can no longer be set forth here with reference to sending the trigger condition of first message about New MME to HSS/HLR in the step 302 in the method shown in Figure 3.

605, Old SGSN/MME receives the context acknowledgement message that New MME sends, Old SGSN/MME confirms to have created the Gs/SGs association for UE, that is, Gs/SGs related information (Gs/SGsassociation) is set to Gs/SGs-ASSOCIATED (the relevant Gs/SGs related information (Gs/SGs association) of UE of Old SGSN/MME preservation in other words is not Gs/SGs-NULL) among the Old SGSN/MME.Old SGSN/MME sends first message to MSC/VLR, to trigger the professional network of relation resource of CS that MSC/VLR discharges described UE.Described first form of message can be:

1) IMSI-DETACH-INDICATION (IMSI separates indication) message, MSC/VLR receives described IMSI-DETACH-INDICATION message, and carries out IMSI Detach flow process UE is separated from CS, and the CS resource is released;

2) PS/EPS-DETACH-INDICATION (PS/EPS separates indication) message, MSC/VLR receives described PS/EPS-DETACH-INDICATION message, discharges existing Gs/SGs association, and restarts the implicit detach timer.Timer expiry separates UE from CS, the CS resource is released.

Confirm to have created under the prerequisite of Gs/SGs association at Old SGSN/MME for UE, Old SGSN/MME can defaultly must send message and trigger MSC/VLR to MSC/VLR and discharge CS professional network of relation resource, also can trigger according to default trigger condition, described default trigger condition can be one of following or combination:

1) Old SGSN/MME confirms ISR and un-activation.For example, in the Context Ack message of above-mentioned steps 604, New MME does not indicate and activates ISR (not carrying ISR activation-" ISR Activated " indication information in the described Context Ack message), then Old SGSN/MME sends first message to MSC/VLR, discharges the professional network of relation resource of CS to trigger MSC/VLR; Perhaps,

2) Old SGSN/MME receives new MME when not supporting the indication information (receiving indication information in above-mentioned steps 604) of SGs interface, that is the affirmation objective network can't be created the SGs association for UE, then OldSGSN/MME sends first message to MSC/VLR, discharges the professional network of relation resource of CS to trigger MSC/VLR; Perhaps,

When 3) Old SGSN/MME receives the professional disabled indication information of CS (receiving indication information in above-mentioned steps 604) of new MME belonging network, that is confirm that objective network CS business is unavailable, then OldSGSN/MME sends message and triggers the professional network of relation resource of MSC/VLR release CS to MSC/VLR; Perhaps,

4) present embodiment is not got rid of some other trigger condition.

606, MSC/VLR sends and separates indication affirmation IMSI/EPS-DETACH-ACK message to OldSGSN/MME.

607, New MME returns registration to UE and accepts message, for example, adheres to acceptance-Attach Accept/ tracking area update acceptance-TAU Accept message.

Among the embodiment as shown in Figure 6, when not setting up related and MSC/VLR service UE of SGs between the MSC/VLR of the MME of service UE and service UE and stopped the implicit detach timer, in tracking area update TAU process, old SGSN/MME sends message to the MSC/VLR of service UE, thereby realizes that the MSC/VLR of this service UE of triggering discharges the professional network of relation resource of CS of UE.

Among the embodiment as shown in Figure 7, in switching the Handover process, old SGSN/MME sends message to the MSC/VLR of service UE, thereby triggers the professional network of relation resource of CS of the MSC/VLR release UE of this service UE.Introduce the processing method that a kind of resource discharges below in detail, comprising:

701, Old SGSN/MME sends to New MME and transmits the request-Forward Relocation Request message of resetting, and context is delivered to new MME from old SGSN/MME.

702, New MME replys to Old SGSN/MME and transmits the response-Forward Relocation Response message of resetting.

703, New MME sends the forwarding replacement to Old SGSN/MME and finishes notice-Forward Relocation Complete Notification message

Need to prove, can comprise indication information in Forward Relocation Response message or the described Forward Relocation of the step 703 Complete Notification message in the above-mentioned steps 702, described indication information is used to indicate target side whether can create the SGs association, and indication information is used to indicate objective network whether to support the CS business in other words.Described indication information concrete manifestation mode can be with reference to the associated description of indication information in the step 604 in the figure 6 described methods.

In addition, New MME can defaultly provide described indication information to Old SGSN/MME, perhaps according under the default trigger condition, New MME optionally provides described indication information to Old SGSN/MME, these default trigger conditions can be with reference to sending first message about New MME to HSS/HLR in the step 302 of figure 3 described methods, send message to discharge the trigger condition of the relevant CS resource of UE with indication HSS/HLR to the MSC/VLR of service UE, no longer set forth here.

704, Old SGSN/MME returns the forwarding replacement to New MME and finishes affirmation-Forward RelocationComplete Acknowledge message.

705, Old SGSN/MME receives New MME in the Forward RelocationResponse message of step 702 transmission or after the Forward Relocation Complete Notification message that step 703 sends, Old SGSN/MME confirms to have created the Gs/SGs association for UE, both, Gs/SGs related information (Gs/SGs association) was set to Gs/SGs-ASSOCIATED (the relevant Gs/SGs related information (Gs/SGs association) of UE of Old SGSN/MME preservation in other words is not Gs/SGs-NULL) among the Old SGSN/MME.Old SGSN/MME sends first message to MSC/VLR, to trigger the professional network of relation resource of CS that MSC/VLR discharges described UE.Described first form of message can be:

Confirm to have created under the prerequisite of Gs/SGs association at Old SGSN/MME for UE, Old SGSN/MME can defaultly must send message and trigger MSC/VLR to MSC/VLR and discharge CS professional network of relation resource, also can trigger according to default trigger condition, described default trigger condition can be referring to the description of default trigger condition in the step 605 of method shown in Figure 6.

706, MSC/VLR sends and separates indication affirmation IMSI/EPS-DETACH-ACK message to OldSGSN/MME.

Among the embodiment as shown in Figure 7, when not setting up related and MSC/VLR service UE of SGs between the MSC/VLR of the MME of service UE and service UE and stopped the implicit detach timer, in switching the Handover process, old SGSN/MME sends message to the MSC/VLR of service UE, thereby triggers the professional network of relation resource of CS of the MSC/VLR release UE of this service UE.

As shown in Figure 8, a kind of communicator that the embodiment of the invention provides comprises:

Receiving element 801 is used to receive the login request message that user equipment (UE) sends;

Transmitting element 803, be used for sending first message to first equipment, comprise the indication of the circuit switching (CS) resource that discharges described UE in described first message, so that the CS resource that described first equipment notifies described mobile switching center MSC/VLR to discharge described UE.

In another one embodiment of the present invention, this communicator also comprises:

Determining unit 805, be used for determining with described MSC/VLR between not set up SGs related;

Described transmitting element 803, be used for when described determining unit 805 determine with described MSC/VLR between do not set up SGs when related, send described first message to described first equipment.

In another one embodiment of the present invention,

Described determining unit 805 specifically is used for receiving login request message that described UE sends when not indicating associated update/registration when described receiving element 801, and it is related not set up SGs between definite and the described MSC/VLR; Perhaps

The login request message that the described UE that described determining unit 805 specifically is used for receiving when described receiving element 801 sends is indicated associated update/registration, but when described communication equipment is not supported associated update/register flow path, determine with described MSC/VLR between not set up SGs related.

In another one embodiment of the present invention,

Described transmitting element 803, specifically be used for when described determining unit 805 determine with described MSC/VLR between do not set up SGs when related, send described first message according to default trigger condition to described first equipment.

Wherein should default trigger condition can comprise at least a in the following manner:

Operator's configuration;

Described UE is the data type terminal;

It is related that old SGSN/MME and MSC/VLR establish Gs/SGs;

When Idle state saving signaling ISR un-activation.

In another one embodiment of the present invention,

The login request message that described receiving element 801 receives comprises: the detach request message that subscriber equipment sends, comprising described UE in the described detach request message need be from the indication of CS network detach.

In another one embodiment of the present invention, this communication equipment can be the MME of this UE of current service, also can be called new side MME, new MME or target MME etc., old SGSN/MME also can be called source SGSN/MME or old side SGSN/MME for serving before the SGSN/MME of this UE.

As shown in Figure 9, a kind of communication system that the embodiment of the invention provides comprises:

Mobile management entity 902 receives the login request message that user equipment (UE) sends, and sends first message to first equipment 904, comprises the indication of the CS resource that discharges described UE in described first message;

Described first equipment 904 is used to receive first message that described mobile management entity sends, the circuit switching (CS) resource of notifying described mobile switching center MSC/VLR to discharge described UE.

In another one embodiment of the present invention,

Described first equipment 904, specifically be used to receive described first message after, send second message to described MSC/VLR, to trigger the CS resource that described MSC/VLR discharges described UE.

In another one embodiment of the present invention,

Described first equipment 904 is confirming that the described old SGSN/MME and the MSC/VLR of described service UE establish Gs/SGs when related, send second message to MSC/VLR defaultly; Perhaps,

Described first equipment 904 is confirming that described old SGSN/MME and described MSC/VLR establish Gs/SGs when related, and described old MME/SGSN basis is preset trigger condition and sent second message to MSC/VLR.

In another one embodiment of the present invention, this mobile management entity 902 can be the MME of this UE of current service, also can be called new side MME, new MME or target MME etc., old SGSN/MME also can be called source SGSN/MME or old side SGSN/MME for serving before the SGSN/MME of this UE.

In embodiments of the present invention, first equipment can be HSS/HLR, also can be old SGSN/MME.Login request message can be to adhere to request (Attach Request) message, also can be tracing section updating request (TAU Request) message, login request message can also be the detach request message that UE sends, and comprising described UE in the described detach request message need be from the indication of CS network detach etc.The circuit switching (CS) resource of described UE comprises the context of described UE.Wherein first message can be to upgrade position requests UpdateLocation Request message.In another one embodiment of the present invention, this second message can be canceling position request Cancel Location Request message.

As shown in figure 10, a kind of subscriber equipment that the embodiment of the invention provides comprises:

Receiving element 1001 is used to receive the registration that new MME sends and accepts message, and described registration accepts to comprise in the message indication of the packet domain EPS registration of combined registering or evolution;

Transmitting element 1003, be used for sending the 3rd message to second equipment, comprise circuit switching (CS) in described the 3rd message and separate indication, so that described second equipment sends first message to HSS/HLR, so that described HSS/HLR notice mobile switching center MSC/VLR discharges the CS resource of described UE, comprise the indication of the CS resource that discharges described UE in described first message.

In another one embodiment of the present invention,

Described receiving element 1001 specifically is used to receive and adhering to that new MME sends accepts message, and described adhering to accepted to comprise in the message described type of attachment and adhere to or EPS adheres to for uniting; Perhaps

Described receiving element 1001 specifically is used to receive the area update that new MME sends and accepts message, and it is that associated update or EPS upgrade that described area update accepts to comprise in the message described tracing section updating type.

In another one embodiment of the present invention, this subscriber equipment also comprises:

Determining unit 1005 is used for definite current network and does not support the CS business, and determines resident current network;

Described transmitting element 1003 specifically is used for determining that when described determining unit current network do not support the CS business, and when determining resident current network, sends the 3rd message to described second equipment.

The type of determining described UE is a data type;

Determine that described UE has been accomplished to the registration of CS.

In one embodiment of the invention, described first message is notice request Notify Request message, described second message is canceling position request Cancel Location Request message, described the 3rd message is detach request Detach Request message, and described CS separates indication and represents by type of separation Detach type in the described DetachRequest message is designated as IMSI detach.

As shown in figure 11, a kind of communication equipment that the embodiment of the invention provides comprises:

Receiving element 1102 is used to receive the 3rd message that user equipment (UE) sends, and comprises circuit switching (CS) in described the 3rd message and separates indication;

Transmitting element 1104 is used to send first message to HSS/HLR, so that described HSS/HLR notice mobile switching center MSC/VLR discharges the CS resource of described UE, comprises the indication of the CS resource that discharges described UE in described first message.

In another one embodiment of the present invention,

Described transmitting element 1104 also is used for sending registration to described UE and accepts message, and described registration accepts to comprise in the message indication of the packet domain EPS registration of combined registering or evolution.

In another one embodiment of the present invention,

Described transmitting element 1104 specifically is used for sending to adhere to MME accepting message, and described adhering to accepted to comprise in the message described type of attachment and adhere to or EPS adheres to for uniting; Perhaps

Described transmitting element 1104 specifically is used for upgrading to the MME sending zone and accepts message, and it is that associated update or EPS upgrade that described area update accepts to comprise in the message described tracing section updating type.

In the present invention is among the embodiment, and this communication equipment can be new MME, also can be P-CSCF.

The subscriber equipment that the foregoing description provides, communication equipment, and communication system can not supported under the situation of SGs interface at MME, can delete the CS resource of UE yet, have avoided the waste of resource.

Wherein above-mentioned subscriber equipment, communication equipment, and the part do not mentioned in the above-described embodiments of the concrete function of communication system also can be referring to figs. 1 through the descriptions among the pairing embodiment of Fig. 7.

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 with the protection range of described claim.

Claims

1. the processing method that discharges of a resource is characterized in that described method comprises:

Receive the login request message that user equipment (UE) sends;

2. the processing method that resource according to claim 1 discharges is characterized in that, so that the CS resource that described first equipment notifies described MSC/VLR to discharge described UE comprises:

So that after described first equipment receives described first message, send second message to described MSC/VLR, to trigger the CS resource that described MSC/VLR discharges described UE.

3. the processing method that resource according to claim 1 discharges is characterized in that, describedly sends first message to first equipment and comprises:

Determine with described MSC/VLR between not set up SGs related, send first message to described first equipment.

4. the processing method that resource according to claim 3 discharges is characterized in that, described determine with described MSC/VLR between not set up SGs related, comprising:

If receive in the login request message that described UE sends and do not indicate associated update/registration, it is related not set up SGs between definite and the described MSC/VLR; Perhaps

If indicate associated update/registration in the login request message that the described UE that receives sends, but do not support associated update/register flow path, it is related not set up SGs between definite and the described MSC/VLR.

5. the processing method that resource according to claim 3 discharges is characterized in that, described determine with described MSC/VLR between not set up SGs related, send first message to described first equipment, comprising:

Determine with described MSC/VLR between not set up SGs related, send first message according to default trigger condition to described first equipment.

6. the processing method that resource according to claim 5 discharges is characterized in that described default trigger condition comprises at least one in the following manner:

Operator's configuration;

Described UE is the data type terminal;

It is related that old Serving GPRS Support Node SGSN/ mobile management entity MME and MSC/VLR establish Gs/SGs; With

When Idle state saving signaling ISR un-activation.

7. the processing method that resource according to claim 6 discharges is characterized in that, confirms that described old SGSN/MME and described MSC/VLR establish the related method of Gs/SGs and comprise in the following mode at least one:

Receive when comprising interim mobile signatory mark TMSI information in described TAU Request or the Attach Request message, it is related to confirm that the old SGSN/MME and the MSC/VLR of described service UE establish Gs/SGs; Perhaps,

When including the information of creating the Gs/SGs association from the UE related context that old SGSN/MME obtains, it is related that the affirmation Old SGSN/MME and the MSC/VLR of described service UE establish Gs/SGs,

8. method according to claim 1 is characterized in that, when described first equipment is old SGSN/MME, comprises in first message whether available whether new MME support CS business the indication information of the indication information of SGs interface or described new MME belonging network.

9. the processing method that resource according to claim 8 discharges is characterized in that, sends described first message to old SGSN/MME and comprises:

In switching the Handover process, send to old SGSN/MME and to transmit the response Forward Relocation Re sponse message or transmit to reset and finish notice Forward Relocation Complete Notification message reset.

10. the processing method that resource according to claim 2 discharges is characterized in that described first equipment sends second message to the MSC/VLR of described service-user equipment UE after receiving described first message, comprising:

Described first equipment is confirming that the described old SGSN/MME and the MSC/VLR of described service UE establish Gs/SGs when related, send second message to MSC/VLR defaultly; Perhaps,

Described first equipment is confirming that described old SGSN/MME and described MSC/VLR establish Gs/SGs when related, and described old MME/SGSN basis is preset trigger condition and sent second message to MSC/VLR.

11. the processing method that resource according to claim 10 discharges is characterized in that when described first equipment was old SGSN/MME, described default trigger condition comprised at least one in the following mode:

Confirm ISR and un-activation;

12. the processing method that resource according to claim 10 discharges is characterized in that the login request message of described subscriber equipment comprises:

The detach request message that subscriber equipment sends, comprising described UE in the described detach request message need be from the indication of CS network detach.

13. the method that resource discharges is characterized in that, comprising:

14. the processing method that resource according to claim 13 discharges is characterized in that, so that the CS resource that described HSS/HLR notifies the MSC/VLR of described UE to discharge described UE comprises:

So that after described HSS/HLR receives described first message, send second message to the MSC/VLR of described UE, to trigger the circuit switching (CS) resource that MSC/VLR discharges described UE.

15. the processing method that resource according to claim 13 discharges is characterized in that, message is accepted in the registration that the new MME of described reception sends, and described registration accepts to comprise in the message indication of combined registering or EPS registration, comprising:

Receive and adhering to that new MME sends accept message, described adhering to accepted to comprise in the message described type of attachment and adheres to or EPS adheres to for uniting; Perhaps

The area update that receives new MME transmission is accepted message, and it is that associated update or EPS upgrade that described area update accepts to comprise in the message described tracing section updating type.

16. the processing method that resource according to claim 13 discharges is characterized in that, describedly also comprises before second equipment sends the 3rd message:

Determine that current network do not support the CS business, and determine resident current network, send the 3rd message to described second equipment.

17. the processing method that resource according to claim 16 discharges is characterized in that, described definite resident current network comprises at least one in the following manner:

The type of determining described UE is a data type;

Determine that described UE has been accomplished to the registration of CS.

18. a communication equipment is characterized in that, comprising:

19. communication equipment according to claim 18 is characterized in that, also comprises:

Determining unit, be used for determining with described MSC/VLR between not set up SGs related;

Described transmitting element, be used for when described determining unit determine with described MSC/VLR between do not set up SGs when related, send described first message to described first equipment.

20. communication equipment according to claim 19 is characterized in that,

Described determining unit specifically is used for receiving login request message that described UE sends when not indicating associated update/registration when described receiving element, and it is related not set up SGs between definite and the described MSC/VLR; Perhaps

The login request message that the described UE that described determining unit specifically is used for receiving when described receiving element sends is indicated associated update/registration, but when described communication equipment is not supported associated update/register flow path, determine with described MSC/VLR between not set up SGs related.

21. according to claim communication equipment according to claim 19, it is characterized in that,

Described transmitting element, specifically be used for when described determining unit determine with described MSC/VLR between do not set up SGs when related, send described first message according to default trigger condition to described first equipment.

22. communication equipment according to claim 18, it is characterized in that, when described first equipment is old SGSN/MME, comprise in first message whether available whether new MME support CS business the indication information of the indication information of SGs interface or described new MME belonging network.

23. communication equipment according to claim 18 is characterized in that,

The login request message that described receiving element receives comprises: the detach request message that subscriber equipment sends, comprising described UE in the described detach request message need be from the indication of CS network detach.

24. a communication system is characterized in that, comprising:

25. communication system according to claim 24 is characterized in that,

Described first equipment, specifically be used to receive described first message after, send second message to described MSC/VLR, to trigger the CS resource that described MSC/VLR discharges described UE.

26. according to claim 24 or 25 described communication systems, it is characterized in that,

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

28. subscriber equipment according to claim 27 is characterized in that,

Described receiving element specifically is used to receive and adhering to that new MME sends accepts message, and described adhering to accepted to comprise in the message described type of attachment and adhere to or EPS adheres to for uniting; Perhaps

Described receiving element specifically is used to receive the area update that new MME sends and accepts message, and it is that associated update or EPS upgrade that described area update accepts to comprise in the message described tracing section updating type.

29. subscriber equipment according to claim 27 is characterized in that, also comprises:

Determining unit is used for definite current network and does not support the CS business, and determines resident current network;

Described transmitting element specifically is used for determining that when described determining unit current network do not support the CS business, and when determining resident current network, sends the 3rd message to described second equipment.

30. a communication equipment is characterized in that, comprising:

31. communication equipment according to claim 30 is characterized in that,

Described transmitting element also is used for sending registration to described UE and accepts message, and described registration accepts to comprise in the message indication of the packet domain EPS registration of combined registering or evolution.

32. communication equipment according to claim 31 is characterized in that,

Described transmitting element specifically is used for sending to adhere to MME accepting message, and described adhering to accepted to comprise in the message described type of attachment and adhere to or EPS adheres to for uniting; Perhaps

Described transmitting element specifically is used for upgrading to the MME sending zone and accepts message, and it is that associated update or EPS upgrade that described area update accepts to comprise in the message described tracing section updating type.